1f453ba04SDave Airlie /* 2f453ba04SDave Airlie * Copyright (c) 2006-2008 Intel Corporation 3f453ba04SDave Airlie * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> 4f453ba04SDave Airlie * Copyright (c) 2008 Red Hat Inc. 5f453ba04SDave Airlie * 6f453ba04SDave Airlie * DRM core CRTC related functions 7f453ba04SDave Airlie * 8f453ba04SDave Airlie * Permission to use, copy, modify, distribute, and sell this software and its 9f453ba04SDave Airlie * documentation for any purpose is hereby granted without fee, provided that 10f453ba04SDave Airlie * the above copyright notice appear in all copies and that both that copyright 11f453ba04SDave Airlie * notice and this permission notice appear in supporting documentation, and 12f453ba04SDave Airlie * that the name of the copyright holders not be used in advertising or 13f453ba04SDave Airlie * publicity pertaining to distribution of the software without specific, 14f453ba04SDave Airlie * written prior permission. The copyright holders make no representations 15f453ba04SDave Airlie * about the suitability of this software for any purpose. It is provided "as 16f453ba04SDave Airlie * is" without express or implied warranty. 17f453ba04SDave Airlie * 18f453ba04SDave Airlie * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 19f453ba04SDave Airlie * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 20f453ba04SDave Airlie * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 21f453ba04SDave Airlie * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 22f453ba04SDave Airlie * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 23f453ba04SDave Airlie * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 24f453ba04SDave Airlie * OF THIS SOFTWARE. 25f453ba04SDave Airlie * 26f453ba04SDave Airlie * Authors: 27f453ba04SDave Airlie * Keith Packard 28f453ba04SDave Airlie * Eric Anholt <eric@anholt.net> 29f453ba04SDave Airlie * Dave Airlie <airlied@linux.ie> 30f453ba04SDave Airlie * Jesse Barnes <jesse.barnes@intel.com> 31f453ba04SDave Airlie */ 326ba6d03eSVille Syrjälä #include <linux/ctype.h> 33f453ba04SDave Airlie #include <linux/list.h> 345a0e3ad6STejun Heo #include <linux/slab.h> 352d1a8a48SPaul Gortmaker #include <linux/export.h> 36760285e7SDavid Howells #include <drm/drmP.h> 37760285e7SDavid Howells #include <drm/drm_crtc.h> 38760285e7SDavid Howells #include <drm/drm_edid.h> 39760285e7SDavid Howells #include <drm/drm_fourcc.h> 4051fd371bSRob Clark #include <drm/drm_modeset_lock.h> 4188a48e29SRob Clark #include <drm/drm_atomic.h> 42f453ba04SDave Airlie 438bd441b2SDaniel Vetter #include "drm_crtc_internal.h" 4467d0ec4eSDaniel Vetter #include "drm_internal.h" 458bd441b2SDaniel Vetter 469a6f5130SChris Wilson static struct drm_framebuffer * 479a6f5130SChris Wilson internal_framebuffer_create(struct drm_device *dev, 481eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *r, 49c394c2b0SMatt Roper struct drm_file *file_priv); 50c394c2b0SMatt Roper 51f453ba04SDave Airlie /* Avoid boilerplate. I'm tired of typing. */ 52f453ba04SDave Airlie #define DRM_ENUM_NAME_FN(fnname, list) \ 53d20d3174SVille Syrjälä const char *fnname(int val) \ 54f453ba04SDave Airlie { \ 55f453ba04SDave Airlie int i; \ 56f453ba04SDave Airlie for (i = 0; i < ARRAY_SIZE(list); i++) { \ 57f453ba04SDave Airlie if (list[i].type == val) \ 58f453ba04SDave Airlie return list[i].name; \ 59f453ba04SDave Airlie } \ 60f453ba04SDave Airlie return "(unknown)"; \ 61f453ba04SDave Airlie } 62f453ba04SDave Airlie 63f453ba04SDave Airlie /* 64f453ba04SDave Airlie * Global properties 65f453ba04SDave Airlie */ 664dfd909fSThierry Reding static const struct drm_prop_enum_list drm_dpms_enum_list[] = { 674dfd909fSThierry Reding { DRM_MODE_DPMS_ON, "On" }, 68f453ba04SDave Airlie { DRM_MODE_DPMS_STANDBY, "Standby" }, 69f453ba04SDave Airlie { DRM_MODE_DPMS_SUSPEND, "Suspend" }, 70f453ba04SDave Airlie { DRM_MODE_DPMS_OFF, "Off" } 71f453ba04SDave Airlie }; 72f453ba04SDave Airlie 73f453ba04SDave Airlie DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) 74f453ba04SDave Airlie 754dfd909fSThierry Reding static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { 769922ab5aSRob Clark { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, 779922ab5aSRob Clark { DRM_PLANE_TYPE_PRIMARY, "Primary" }, 789922ab5aSRob Clark { DRM_PLANE_TYPE_CURSOR, "Cursor" }, 799922ab5aSRob Clark }; 809922ab5aSRob Clark 81f453ba04SDave Airlie /* 82f453ba04SDave Airlie * Optional properties 83f453ba04SDave Airlie */ 844dfd909fSThierry Reding static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { 8553bd8389SJesse Barnes { DRM_MODE_SCALE_NONE, "None" }, 8653bd8389SJesse Barnes { DRM_MODE_SCALE_FULLSCREEN, "Full" }, 8753bd8389SJesse Barnes { DRM_MODE_SCALE_CENTER, "Center" }, 8853bd8389SJesse Barnes { DRM_MODE_SCALE_ASPECT, "Full aspect" }, 89f453ba04SDave Airlie }; 90f453ba04SDave Airlie 91ff587e45SVandana Kannan static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { 92ff587e45SVandana Kannan { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, 93ff587e45SVandana Kannan { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, 94ff587e45SVandana Kannan { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, 95ff587e45SVandana Kannan }; 96ff587e45SVandana Kannan 97f453ba04SDave Airlie /* 98f453ba04SDave Airlie * Non-global properties, but "required" for certain connectors. 99f453ba04SDave Airlie */ 1004dfd909fSThierry Reding static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { 101f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 102f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 103f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 104f453ba04SDave Airlie }; 105f453ba04SDave Airlie 106f453ba04SDave Airlie DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) 107f453ba04SDave Airlie 1084dfd909fSThierry Reding static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { 109f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 110f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 111f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 112f453ba04SDave Airlie }; 113f453ba04SDave Airlie 114f453ba04SDave Airlie DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, 115f453ba04SDave Airlie drm_dvi_i_subconnector_enum_list) 116f453ba04SDave Airlie 1174dfd909fSThierry Reding static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { 118f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 119f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 120f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 121f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 122aeaa1ad3SFrancisco Jerez { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 123f453ba04SDave Airlie }; 124f453ba04SDave Airlie 125f453ba04SDave Airlie DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) 126f453ba04SDave Airlie 1274dfd909fSThierry Reding static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { 128f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 129f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 130f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 131f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 132aeaa1ad3SFrancisco Jerez { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 133f453ba04SDave Airlie }; 134f453ba04SDave Airlie 135f453ba04SDave Airlie DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, 136f453ba04SDave Airlie drm_tv_subconnector_enum_list) 137f453ba04SDave Airlie 138d20d3174SVille Syrjälä static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { 139884840aaSJakob Bornecrantz { DRM_MODE_DIRTY_OFF, "Off" }, 140884840aaSJakob Bornecrantz { DRM_MODE_DIRTY_ON, "On" }, 141884840aaSJakob Bornecrantz { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, 142884840aaSJakob Bornecrantz }; 143884840aaSJakob Bornecrantz 144f453ba04SDave Airlie struct drm_conn_prop_enum_list { 145f453ba04SDave Airlie int type; 146d20d3174SVille Syrjälä const char *name; 147b21e3afeSIlia Mirkin struct ida ida; 148f453ba04SDave Airlie }; 149f453ba04SDave Airlie 150f453ba04SDave Airlie /* 151f453ba04SDave Airlie * Connector and encoder types. 152f453ba04SDave Airlie */ 1534dfd909fSThierry Reding static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { 1544dfd909fSThierry Reding { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, 155b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_VGA, "VGA" }, 156b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, 157b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, 158b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, 159b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_Composite, "Composite" }, 160b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, 161b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, 162b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_Component, "Component" }, 163b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, 164b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, 165b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, 166b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, 167b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_TV, "TV" }, 168b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_eDP, "eDP" }, 169b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, 170b8923273SShobhit Kumar { DRM_MODE_CONNECTOR_DSI, "DSI" }, 171f453ba04SDave Airlie }; 172f453ba04SDave Airlie 1734dfd909fSThierry Reding static const struct drm_prop_enum_list drm_encoder_enum_list[] = { 1744dfd909fSThierry Reding { DRM_MODE_ENCODER_NONE, "None" }, 175f453ba04SDave Airlie { DRM_MODE_ENCODER_DAC, "DAC" }, 176f453ba04SDave Airlie { DRM_MODE_ENCODER_TMDS, "TMDS" }, 177f453ba04SDave Airlie { DRM_MODE_ENCODER_LVDS, "LVDS" }, 178f453ba04SDave Airlie { DRM_MODE_ENCODER_TVDAC, "TV" }, 179a7331e5cSThomas Hellstrom { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, 180b8923273SShobhit Kumar { DRM_MODE_ENCODER_DSI, "DSI" }, 181182407a6SDave Airlie { DRM_MODE_ENCODER_DPMST, "DP MST" }, 182f453ba04SDave Airlie }; 183f453ba04SDave Airlie 1844dfd909fSThierry Reding static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { 185ac1bb36cSJesse Barnes { SubPixelUnknown, "Unknown" }, 186ac1bb36cSJesse Barnes { SubPixelHorizontalRGB, "Horizontal RGB" }, 187ac1bb36cSJesse Barnes { SubPixelHorizontalBGR, "Horizontal BGR" }, 188ac1bb36cSJesse Barnes { SubPixelVerticalRGB, "Vertical RGB" }, 189ac1bb36cSJesse Barnes { SubPixelVerticalBGR, "Vertical BGR" }, 190ac1bb36cSJesse Barnes { SubPixelNone, "None" }, 191ac1bb36cSJesse Barnes }; 192ac1bb36cSJesse Barnes 193b21e3afeSIlia Mirkin void drm_connector_ida_init(void) 194b21e3afeSIlia Mirkin { 195b21e3afeSIlia Mirkin int i; 196b21e3afeSIlia Mirkin 197b21e3afeSIlia Mirkin for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) 198b21e3afeSIlia Mirkin ida_init(&drm_connector_enum_list[i].ida); 199b21e3afeSIlia Mirkin } 200b21e3afeSIlia Mirkin 201b21e3afeSIlia Mirkin void drm_connector_ida_destroy(void) 202b21e3afeSIlia Mirkin { 203b21e3afeSIlia Mirkin int i; 204b21e3afeSIlia Mirkin 205b21e3afeSIlia Mirkin for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) 206b21e3afeSIlia Mirkin ida_destroy(&drm_connector_enum_list[i].ida); 207b21e3afeSIlia Mirkin } 208b21e3afeSIlia Mirkin 209c8e32cc1SDaniel Vetter /** 210c8e32cc1SDaniel Vetter * drm_get_connector_status_name - return a string for connector status 211c8e32cc1SDaniel Vetter * @status: connector status to compute name of 212c8e32cc1SDaniel Vetter * 213c8e32cc1SDaniel Vetter * In contrast to the other drm_get_*_name functions this one here returns a 214c8e32cc1SDaniel Vetter * const pointer and hence is threadsafe. 215c8e32cc1SDaniel Vetter */ 216d20d3174SVille Syrjälä const char *drm_get_connector_status_name(enum drm_connector_status status) 217f453ba04SDave Airlie { 218f453ba04SDave Airlie if (status == connector_status_connected) 219f453ba04SDave Airlie return "connected"; 220f453ba04SDave Airlie else if (status == connector_status_disconnected) 221f453ba04SDave Airlie return "disconnected"; 222f453ba04SDave Airlie else 223f453ba04SDave Airlie return "unknown"; 224f453ba04SDave Airlie } 225ed7951dcSLespiau, Damien EXPORT_SYMBOL(drm_get_connector_status_name); 226f453ba04SDave Airlie 227ac1bb36cSJesse Barnes /** 228ac1bb36cSJesse Barnes * drm_get_subpixel_order_name - return a string for a given subpixel enum 229ac1bb36cSJesse Barnes * @order: enum of subpixel_order 230ac1bb36cSJesse Barnes * 231ac1bb36cSJesse Barnes * Note you could abuse this and return something out of bounds, but that 232ac1bb36cSJesse Barnes * would be a caller error. No unscrubbed user data should make it here. 233ac1bb36cSJesse Barnes */ 234ac1bb36cSJesse Barnes const char *drm_get_subpixel_order_name(enum subpixel_order order) 235ac1bb36cSJesse Barnes { 236ac1bb36cSJesse Barnes return drm_subpixel_enum_list[order].name; 237ac1bb36cSJesse Barnes } 238ac1bb36cSJesse Barnes EXPORT_SYMBOL(drm_get_subpixel_order_name); 239ac1bb36cSJesse Barnes 2406ba6d03eSVille Syrjälä static char printable_char(int c) 2416ba6d03eSVille Syrjälä { 2426ba6d03eSVille Syrjälä return isascii(c) && isprint(c) ? c : '?'; 2436ba6d03eSVille Syrjälä } 2446ba6d03eSVille Syrjälä 245c8e32cc1SDaniel Vetter /** 246c8e32cc1SDaniel Vetter * drm_get_format_name - return a string for drm fourcc format 247c8e32cc1SDaniel Vetter * @format: format to compute name of 248c8e32cc1SDaniel Vetter * 249c8e32cc1SDaniel Vetter * Note that the buffer used by this function is globally shared and owned by 250c8e32cc1SDaniel Vetter * the function itself. 251c8e32cc1SDaniel Vetter * 252c8e32cc1SDaniel Vetter * FIXME: This isn't really multithreading safe. 253c8e32cc1SDaniel Vetter */ 254d20d3174SVille Syrjälä const char *drm_get_format_name(uint32_t format) 2556ba6d03eSVille Syrjälä { 2566ba6d03eSVille Syrjälä static char buf[32]; 2576ba6d03eSVille Syrjälä 2586ba6d03eSVille Syrjälä snprintf(buf, sizeof(buf), 2596ba6d03eSVille Syrjälä "%c%c%c%c %s-endian (0x%08x)", 2606ba6d03eSVille Syrjälä printable_char(format & 0xff), 2616ba6d03eSVille Syrjälä printable_char((format >> 8) & 0xff), 2626ba6d03eSVille Syrjälä printable_char((format >> 16) & 0xff), 2636ba6d03eSVille Syrjälä printable_char((format >> 24) & 0x7f), 2646ba6d03eSVille Syrjälä format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", 2656ba6d03eSVille Syrjälä format); 2666ba6d03eSVille Syrjälä 2676ba6d03eSVille Syrjälä return buf; 2686ba6d03eSVille Syrjälä } 2696ba6d03eSVille Syrjälä EXPORT_SYMBOL(drm_get_format_name); 2706ba6d03eSVille Syrjälä 2712ee39452SDave Airlie /* 2722ee39452SDave Airlie * Internal function to assign a slot in the object idr and optionally 2732ee39452SDave Airlie * register the object into the idr. 2742ee39452SDave Airlie */ 2752ee39452SDave Airlie static int drm_mode_object_get_reg(struct drm_device *dev, 2762ee39452SDave Airlie struct drm_mode_object *obj, 2772ee39452SDave Airlie uint32_t obj_type, 278d0f37cf6SDave Airlie bool register_obj, 279d0f37cf6SDave Airlie void (*obj_free_cb)(struct kref *kref)) 2802ee39452SDave Airlie { 2812ee39452SDave Airlie int ret; 2822ee39452SDave Airlie 2832ee39452SDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 2842ee39452SDave Airlie ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); 2852ee39452SDave Airlie if (ret >= 0) { 2862ee39452SDave Airlie /* 2872ee39452SDave Airlie * Set up the object linking under the protection of the idr 2882ee39452SDave Airlie * lock so that other users can't see inconsistent state. 2892ee39452SDave Airlie */ 2902ee39452SDave Airlie obj->id = ret; 2912ee39452SDave Airlie obj->type = obj_type; 292d0f37cf6SDave Airlie if (obj_free_cb) { 293d0f37cf6SDave Airlie obj->free_cb = obj_free_cb; 294d0f37cf6SDave Airlie kref_init(&obj->refcount); 295d0f37cf6SDave Airlie } 2962ee39452SDave Airlie } 2972ee39452SDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 2982ee39452SDave Airlie 2992ee39452SDave Airlie return ret < 0 ? ret : 0; 3002ee39452SDave Airlie } 3012ee39452SDave Airlie 302f453ba04SDave Airlie /** 303065a50edSDaniel Vetter * drm_mode_object_get - allocate a new modeset identifier 304f453ba04SDave Airlie * @dev: DRM device 305065a50edSDaniel Vetter * @obj: object pointer, used to generate unique ID 306065a50edSDaniel Vetter * @obj_type: object type 307f453ba04SDave Airlie * 308f453ba04SDave Airlie * Create a unique identifier based on @ptr in @dev's identifier space. Used 309c8e32cc1SDaniel Vetter * for tracking modes, CRTCs and connectors. Note that despite the _get postfix 310c8e32cc1SDaniel Vetter * modeset identifiers are _not_ reference counted. Hence don't use this for 311c8e32cc1SDaniel Vetter * reference counted modeset objects like framebuffers. 312f453ba04SDave Airlie * 313c8e32cc1SDaniel Vetter * Returns: 3143c67d839SLukas Wunner * Zero on success, error code on failure. 315f453ba04SDave Airlie */ 3168bd441b2SDaniel Vetter int drm_mode_object_get(struct drm_device *dev, 317f453ba04SDave Airlie struct drm_mode_object *obj, uint32_t obj_type) 318f453ba04SDave Airlie { 319d0f37cf6SDave Airlie return drm_mode_object_get_reg(dev, obj, obj_type, true, NULL); 3204b096ac1SDaniel Vetter } 3214b096ac1SDaniel Vetter 3222ee39452SDave Airlie static void drm_mode_object_register(struct drm_device *dev, 3232ee39452SDave Airlie struct drm_mode_object *obj) 3242ee39452SDave Airlie { 3252ee39452SDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 3262ee39452SDave Airlie idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); 3272ee39452SDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 328f453ba04SDave Airlie } 329f453ba04SDave Airlie 330f453ba04SDave Airlie /** 3317c8f6d25SDave Airlie * drm_mode_object_unregister - free a modeset identifer 332f453ba04SDave Airlie * @dev: DRM device 333065a50edSDaniel Vetter * @object: object to free 334f453ba04SDave Airlie * 3357c8f6d25SDave Airlie * Free @id from @dev's unique identifier pool. 3367c8f6d25SDave Airlie * This function can be called multiple times, and guards against 3377c8f6d25SDave Airlie * multiple removals. 3387c8f6d25SDave Airlie * These modeset identifiers are _not_ reference counted. Hence don't use this 339c8e32cc1SDaniel Vetter * for reference counted modeset objects like framebuffers. 340f453ba04SDave Airlie */ 3417c8f6d25SDave Airlie void drm_mode_object_unregister(struct drm_device *dev, 342f453ba04SDave Airlie struct drm_mode_object *object) 343f453ba04SDave Airlie { 344ad2563c2SJesse Barnes mutex_lock(&dev->mode_config.idr_mutex); 3457c8f6d25SDave Airlie if (object->id) { 346f453ba04SDave Airlie idr_remove(&dev->mode_config.crtc_idr, object->id); 3477c8f6d25SDave Airlie object->id = 0; 3487c8f6d25SDave Airlie } 349ad2563c2SJesse Barnes mutex_unlock(&dev->mode_config.idr_mutex); 350f453ba04SDave Airlie } 351f453ba04SDave Airlie 35298f75de4SRob Clark static struct drm_mode_object *_object_find(struct drm_device *dev, 35398f75de4SRob Clark uint32_t id, uint32_t type) 35498f75de4SRob Clark { 35598f75de4SRob Clark struct drm_mode_object *obj = NULL; 35698f75de4SRob Clark 35798f75de4SRob Clark mutex_lock(&dev->mode_config.idr_mutex); 35898f75de4SRob Clark obj = idr_find(&dev->mode_config.crtc_idr, id); 359168c02ecSDaniel Vetter if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) 360168c02ecSDaniel Vetter obj = NULL; 361168c02ecSDaniel Vetter if (obj && obj->id != id) 362168c02ecSDaniel Vetter obj = NULL; 363168c02ecSDaniel Vetter /* don't leak out unref'd fb's */ 3646bcacf51SDaniel Stone if (obj && 365cee26ac4SDave Airlie obj->type == DRM_MODE_OBJECT_BLOB) 36698f75de4SRob Clark obj = NULL; 36798f75de4SRob Clark mutex_unlock(&dev->mode_config.idr_mutex); 36898f75de4SRob Clark 36998f75de4SRob Clark return obj; 37098f75de4SRob Clark } 37198f75de4SRob Clark 372786b99edSDaniel Vetter /** 373786b99edSDaniel Vetter * drm_mode_object_find - look up a drm object with static lifetime 374786b99edSDaniel Vetter * @dev: drm device 375786b99edSDaniel Vetter * @id: id of the mode object 376786b99edSDaniel Vetter * @type: type of the mode object 377786b99edSDaniel Vetter * 378786b99edSDaniel Vetter * Note that framebuffers cannot be looked up with this functions - since those 37998f75de4SRob Clark * are reference counted, they need special treatment. Even with 38098f75de4SRob Clark * DRM_MODE_OBJECT_ANY (although that will simply return NULL 38198f75de4SRob Clark * rather than WARN_ON()). 382786b99edSDaniel Vetter */ 3837a9c9060SDaniel Vetter struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 3847a9c9060SDaniel Vetter uint32_t id, uint32_t type) 385f453ba04SDave Airlie { 386ad2563c2SJesse Barnes struct drm_mode_object *obj = NULL; 387f453ba04SDave Airlie 388786b99edSDaniel Vetter /* Framebuffers are reference counted and need their own lookup 389786b99edSDaniel Vetter * function.*/ 3906bcacf51SDaniel Stone WARN_ON(type == DRM_MODE_OBJECT_FB || type == DRM_MODE_OBJECT_BLOB); 39198f75de4SRob Clark obj = _object_find(dev, id, type); 392f453ba04SDave Airlie return obj; 393f453ba04SDave Airlie } 394f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_object_find); 395f453ba04SDave Airlie 396d0f37cf6SDave Airlie void drm_mode_object_unreference(struct drm_mode_object *obj) 397d0f37cf6SDave Airlie { 398d0f37cf6SDave Airlie if (obj->free_cb) { 399d0f37cf6SDave Airlie DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); 400d0f37cf6SDave Airlie kref_put(&obj->refcount, obj->free_cb); 401d0f37cf6SDave Airlie } 402d0f37cf6SDave Airlie } 403d0f37cf6SDave Airlie EXPORT_SYMBOL(drm_mode_object_unreference); 404d0f37cf6SDave Airlie 405d0f37cf6SDave Airlie /** 406d0f37cf6SDave Airlie * drm_mode_object_reference - incr the fb refcnt 407d0f37cf6SDave Airlie * @obj: mode_object 408d0f37cf6SDave Airlie * 409d0f37cf6SDave Airlie * This function operates only on refcounted objects. 410d0f37cf6SDave Airlie * This functions increments the object's refcount. 411d0f37cf6SDave Airlie */ 412d0f37cf6SDave Airlie void drm_mode_object_reference(struct drm_mode_object *obj) 413d0f37cf6SDave Airlie { 414d0f37cf6SDave Airlie if (obj->free_cb) { 415d0f37cf6SDave Airlie DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); 416d0f37cf6SDave Airlie kref_get(&obj->refcount); 417d0f37cf6SDave Airlie } 418d0f37cf6SDave Airlie } 419d0f37cf6SDave Airlie EXPORT_SYMBOL(drm_mode_object_reference); 420d0f37cf6SDave Airlie 421f55f1f91SDave Airlie static void drm_framebuffer_free(struct kref *kref) 422f55f1f91SDave Airlie { 423f55f1f91SDave Airlie struct drm_framebuffer *fb = 424d0f37cf6SDave Airlie container_of(kref, struct drm_framebuffer, base.refcount); 425f55f1f91SDave Airlie struct drm_device *dev = fb->dev; 426f55f1f91SDave Airlie 427f55f1f91SDave Airlie /* 428f55f1f91SDave Airlie * The lookup idr holds a weak reference, which has not necessarily been 429f55f1f91SDave Airlie * removed at this point. Check for that. 430f55f1f91SDave Airlie */ 431f55f1f91SDave Airlie mutex_lock(&dev->mode_config.fb_lock); 43219ab3f8bSDave Airlie drm_mode_object_unregister(dev, &fb->base); 433f55f1f91SDave Airlie mutex_unlock(&dev->mode_config.fb_lock); 434f55f1f91SDave Airlie 435f55f1f91SDave Airlie fb->funcs->destroy(fb); 436f55f1f91SDave Airlie } 437f55f1f91SDave Airlie 438f453ba04SDave Airlie /** 439f453ba04SDave Airlie * drm_framebuffer_init - initialize a framebuffer 440f453ba04SDave Airlie * @dev: DRM device 441065a50edSDaniel Vetter * @fb: framebuffer to be initialized 442065a50edSDaniel Vetter * @funcs: ... with these functions 443f453ba04SDave Airlie * 444f453ba04SDave Airlie * Allocates an ID for the framebuffer's parent mode object, sets its mode 445f453ba04SDave Airlie * functions & device file and adds it to the master fd list. 446f453ba04SDave Airlie * 4474b096ac1SDaniel Vetter * IMPORTANT: 4484b096ac1SDaniel Vetter * This functions publishes the fb and makes it available for concurrent access 4494b096ac1SDaniel Vetter * by other users. Which means by this point the fb _must_ be fully set up - 4504b096ac1SDaniel Vetter * since all the fb attributes are invariant over its lifetime, no further 4514b096ac1SDaniel Vetter * locking but only correct reference counting is required. 4524b096ac1SDaniel Vetter * 453c8e32cc1SDaniel Vetter * Returns: 454af901ca1SAndré Goddard Rosa * Zero on success, error code on failure. 455f453ba04SDave Airlie */ 456f453ba04SDave Airlie int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, 457f453ba04SDave Airlie const struct drm_framebuffer_funcs *funcs) 458f453ba04SDave Airlie { 459f453ba04SDave Airlie int ret; 460f453ba04SDave Airlie 4614b096ac1SDaniel Vetter INIT_LIST_HEAD(&fb->filp_head); 4624b096ac1SDaniel Vetter fb->dev = dev; 4634b096ac1SDaniel Vetter fb->funcs = funcs; 464f7eff60eSRob Clark 465d0f37cf6SDave Airlie ret = drm_mode_object_get_reg(dev, &fb->base, DRM_MODE_OBJECT_FB, 4669cd47424SDave Airlie false, drm_framebuffer_free); 4676bfc56aaSVille Syrjälä if (ret) 4684b096ac1SDaniel Vetter goto out; 469f453ba04SDave Airlie 4709cd47424SDave Airlie mutex_lock(&dev->mode_config.fb_lock); 471f453ba04SDave Airlie dev->mode_config.num_fb++; 472f453ba04SDave Airlie list_add(&fb->head, &dev->mode_config.fb_list); 473f453ba04SDave Airlie 4749cd47424SDave Airlie drm_mode_object_register(dev, &fb->base); 4759cd47424SDave Airlie mutex_unlock(&dev->mode_config.fb_lock); 4769cd47424SDave Airlie out: 4773c67d839SLukas Wunner return ret; 478f453ba04SDave Airlie } 479f453ba04SDave Airlie EXPORT_SYMBOL(drm_framebuffer_init); 480f453ba04SDave Airlie 481f7eff60eSRob Clark /** 482786b99edSDaniel Vetter * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference 483786b99edSDaniel Vetter * @dev: drm device 484786b99edSDaniel Vetter * @id: id of the fb object 485786b99edSDaniel Vetter * 486786b99edSDaniel Vetter * If successful, this grabs an additional reference to the framebuffer - 487786b99edSDaniel Vetter * callers need to make sure to eventually unreference the returned framebuffer 488c8e32cc1SDaniel Vetter * again, using @drm_framebuffer_unreference. 489786b99edSDaniel Vetter */ 490786b99edSDaniel Vetter struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, 491786b99edSDaniel Vetter uint32_t id) 492786b99edSDaniel Vetter { 493cee26ac4SDave Airlie struct drm_mode_object *obj; 494cee26ac4SDave Airlie struct drm_framebuffer *fb = NULL; 495786b99edSDaniel Vetter 496786b99edSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 497cee26ac4SDave Airlie obj = _object_find(dev, id, DRM_MODE_OBJECT_FB); 498cee26ac4SDave Airlie if (obj) { 499cee26ac4SDave Airlie fb = obj_to_fb(obj); 500d0f37cf6SDave Airlie if (!kref_get_unless_zero(&fb->base.refcount)) 50183f45fc3SDaniel Vetter fb = NULL; 50283f45fc3SDaniel Vetter } 503786b99edSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 504786b99edSDaniel Vetter 505786b99edSDaniel Vetter return fb; 506786b99edSDaniel Vetter } 507786b99edSDaniel Vetter EXPORT_SYMBOL(drm_framebuffer_lookup); 508786b99edSDaniel Vetter 509786b99edSDaniel Vetter /** 51036206361SDaniel Vetter * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr 51136206361SDaniel Vetter * @fb: fb to unregister 51236206361SDaniel Vetter * 51336206361SDaniel Vetter * Drivers need to call this when cleaning up driver-private framebuffers, e.g. 51436206361SDaniel Vetter * those used for fbdev. Note that the caller must hold a reference of it's own, 51536206361SDaniel Vetter * i.e. the object may not be destroyed through this call (since it'll lead to a 51636206361SDaniel Vetter * locking inversion). 51736206361SDaniel Vetter */ 51836206361SDaniel Vetter void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) 51936206361SDaniel Vetter { 520a39a357cSDaniel Vetter struct drm_device *dev; 521a39a357cSDaniel Vetter 522a39a357cSDaniel Vetter if (!fb) 523a39a357cSDaniel Vetter return; 524a39a357cSDaniel Vetter 525a39a357cSDaniel Vetter dev = fb->dev; 5262b677e8cSDaniel Vetter 5272b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 5282b677e8cSDaniel Vetter /* Mark fb as reaped and drop idr ref. */ 52919ab3f8bSDave Airlie drm_mode_object_unregister(dev, &fb->base); 5302b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 53136206361SDaniel Vetter } 53236206361SDaniel Vetter EXPORT_SYMBOL(drm_framebuffer_unregister_private); 53336206361SDaniel Vetter 53436206361SDaniel Vetter /** 535f453ba04SDave Airlie * drm_framebuffer_cleanup - remove a framebuffer object 536f453ba04SDave Airlie * @fb: framebuffer to remove 537f453ba04SDave Airlie * 538c8e32cc1SDaniel Vetter * Cleanup framebuffer. This function is intended to be used from the drivers 539c8e32cc1SDaniel Vetter * ->destroy callback. It can also be used to clean up driver private 540c8e32cc1SDaniel Vetter * framebuffers embedded into a larger structure. 54136206361SDaniel Vetter * 54236206361SDaniel Vetter * Note that this function does not remove the fb from active usuage - if it is 54336206361SDaniel Vetter * still used anywhere, hilarity can ensue since userspace could call getfb on 54436206361SDaniel Vetter * the id and get back -EINVAL. Obviously no concern at driver unload time. 54536206361SDaniel Vetter * 54636206361SDaniel Vetter * Also, the framebuffer will not be removed from the lookup idr - for 54736206361SDaniel Vetter * user-created framebuffers this will happen in in the rmfb ioctl. For 54836206361SDaniel Vetter * driver-private objects (e.g. for fbdev) drivers need to explicitly call 54936206361SDaniel Vetter * drm_framebuffer_unregister_private. 550f453ba04SDave Airlie */ 551f453ba04SDave Airlie void drm_framebuffer_cleanup(struct drm_framebuffer *fb) 552f453ba04SDave Airlie { 553f453ba04SDave Airlie struct drm_device *dev = fb->dev; 5548faf6b18SDaniel Vetter 5554b096ac1SDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 556f7eff60eSRob Clark list_del(&fb->head); 557f7eff60eSRob Clark dev->mode_config.num_fb--; 5584b096ac1SDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 559f7eff60eSRob Clark } 560f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_cleanup); 561f7eff60eSRob Clark 562f7eff60eSRob Clark /** 563f7eff60eSRob Clark * drm_framebuffer_remove - remove and unreference a framebuffer object 564f7eff60eSRob Clark * @fb: framebuffer to remove 565f7eff60eSRob Clark * 566f7eff60eSRob Clark * Scans all the CRTCs and planes in @dev's mode_config. If they're 56736206361SDaniel Vetter * using @fb, removes it, setting it to NULL. Then drops the reference to the 568b62584e3SDaniel Vetter * passed-in framebuffer. Might take the modeset locks. 569b62584e3SDaniel Vetter * 570b62584e3SDaniel Vetter * Note that this function optimizes the cleanup away if the caller holds the 571b62584e3SDaniel Vetter * last reference to the framebuffer. It is also guaranteed to not take the 572b62584e3SDaniel Vetter * modeset locks in this case. 573f7eff60eSRob Clark */ 574f7eff60eSRob Clark void drm_framebuffer_remove(struct drm_framebuffer *fb) 575f7eff60eSRob Clark { 576a39a357cSDaniel Vetter struct drm_device *dev; 577f453ba04SDave Airlie struct drm_crtc *crtc; 5788cf5c917SJesse Barnes struct drm_plane *plane; 5795ef5f72fSDave Airlie struct drm_mode_set set; 5805ef5f72fSDave Airlie int ret; 581f453ba04SDave Airlie 582a39a357cSDaniel Vetter if (!fb) 583a39a357cSDaniel Vetter return; 584a39a357cSDaniel Vetter 585a39a357cSDaniel Vetter dev = fb->dev; 586a39a357cSDaniel Vetter 5874b096ac1SDaniel Vetter WARN_ON(!list_empty(&fb->filp_head)); 5888faf6b18SDaniel Vetter 589b62584e3SDaniel Vetter /* 590b62584e3SDaniel Vetter * drm ABI mandates that we remove any deleted framebuffers from active 591b62584e3SDaniel Vetter * useage. But since most sane clients only remove framebuffers they no 592b62584e3SDaniel Vetter * longer need, try to optimize this away. 593b62584e3SDaniel Vetter * 594b62584e3SDaniel Vetter * Since we're holding a reference ourselves, observing a refcount of 1 595b62584e3SDaniel Vetter * means that we're the last holder and can skip it. Also, the refcount 596b62584e3SDaniel Vetter * can never increase from 1 again, so we don't need any barriers or 597b62584e3SDaniel Vetter * locks. 598b62584e3SDaniel Vetter * 599b62584e3SDaniel Vetter * Note that userspace could try to race with use and instate a new 600b62584e3SDaniel Vetter * usage _after_ we've cleared all current ones. End result will be an 601b62584e3SDaniel Vetter * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot 602b62584e3SDaniel Vetter * in this manner. 603b62584e3SDaniel Vetter */ 604747a598fSDave Airlie if (drm_framebuffer_read_refcount(fb) > 1) { 605b62584e3SDaniel Vetter drm_modeset_lock_all(dev); 606f453ba04SDave Airlie /* remove from any CRTC */ 6076295d607SDaniel Vetter drm_for_each_crtc(crtc, dev) { 608f4510a27SMatt Roper if (crtc->primary->fb == fb) { 6095ef5f72fSDave Airlie /* should turn off the crtc */ 6105ef5f72fSDave Airlie memset(&set, 0, sizeof(struct drm_mode_set)); 6115ef5f72fSDave Airlie set.crtc = crtc; 6125ef5f72fSDave Airlie set.fb = NULL; 6132d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 6145ef5f72fSDave Airlie if (ret) 6155ef5f72fSDave Airlie DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); 6165ef5f72fSDave Airlie } 617f453ba04SDave Airlie } 618f453ba04SDave Airlie 6196295d607SDaniel Vetter drm_for_each_plane(plane, dev) { 6209125e618SVille Syrjälä if (plane->fb == fb) 6219125e618SVille Syrjälä drm_plane_force_disable(plane); 6228cf5c917SJesse Barnes } 623b62584e3SDaniel Vetter drm_modeset_unlock_all(dev); 624b62584e3SDaniel Vetter } 6258cf5c917SJesse Barnes 626f7eff60eSRob Clark drm_framebuffer_unreference(fb); 627f453ba04SDave Airlie } 628f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_remove); 629f453ba04SDave Airlie 63051fd371bSRob Clark DEFINE_WW_CLASS(crtc_ww_class); 63151fd371bSRob Clark 632fa3ab4c2SVille Syrjälä static unsigned int drm_num_crtcs(struct drm_device *dev) 633fa3ab4c2SVille Syrjälä { 634fa3ab4c2SVille Syrjälä unsigned int num = 0; 635fa3ab4c2SVille Syrjälä struct drm_crtc *tmp; 636fa3ab4c2SVille Syrjälä 637fa3ab4c2SVille Syrjälä drm_for_each_crtc(tmp, dev) { 638fa3ab4c2SVille Syrjälä num++; 639fa3ab4c2SVille Syrjälä } 640fa3ab4c2SVille Syrjälä 641fa3ab4c2SVille Syrjälä return num; 642fa3ab4c2SVille Syrjälä } 643fa3ab4c2SVille Syrjälä 644f453ba04SDave Airlie /** 645e13161afSMatt Roper * drm_crtc_init_with_planes - Initialise a new CRTC object with 646e13161afSMatt Roper * specified primary and cursor planes. 647f453ba04SDave Airlie * @dev: DRM device 648f453ba04SDave Airlie * @crtc: CRTC object to init 649e13161afSMatt Roper * @primary: Primary plane for CRTC 650e13161afSMatt Roper * @cursor: Cursor plane for CRTC 651f453ba04SDave Airlie * @funcs: callbacks for the new CRTC 652f9882876SVille Syrjälä * @name: printf style format string for the CRTC name, or NULL for default name 653f453ba04SDave Airlie * 654ad6f5c34SVille Syrjälä * Inits a new object created as base part of a driver crtc object. 6556bfc56aaSVille Syrjälä * 656c8e32cc1SDaniel Vetter * Returns: 6576bfc56aaSVille Syrjälä * Zero on success, error code on failure. 658f453ba04SDave Airlie */ 659e13161afSMatt Roper int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, 660e13161afSMatt Roper struct drm_plane *primary, 661fc1d3e44SMatt Roper struct drm_plane *cursor, 662f9882876SVille Syrjälä const struct drm_crtc_funcs *funcs, 663f9882876SVille Syrjälä const char *name, ...) 664f453ba04SDave Airlie { 66551fd371bSRob Clark struct drm_mode_config *config = &dev->mode_config; 6666bfc56aaSVille Syrjälä int ret; 6676bfc56aaSVille Syrjälä 668522cf91fSBenjamin Gaignard WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); 669522cf91fSBenjamin Gaignard WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); 670522cf91fSBenjamin Gaignard 671f453ba04SDave Airlie crtc->dev = dev; 672f453ba04SDave Airlie crtc->funcs = funcs; 673f453ba04SDave Airlie 67451fd371bSRob Clark drm_modeset_lock_init(&crtc->mutex); 6756bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 6766bfc56aaSVille Syrjälä if (ret) 677baf698b0SDaniel Vetter return ret; 678f453ba04SDave Airlie 679fa3ab4c2SVille Syrjälä if (name) { 680fa3ab4c2SVille Syrjälä va_list ap; 681fa3ab4c2SVille Syrjälä 682fa3ab4c2SVille Syrjälä va_start(ap, name); 683fa3ab4c2SVille Syrjälä crtc->name = kvasprintf(GFP_KERNEL, name, ap); 684fa3ab4c2SVille Syrjälä va_end(ap); 685fa3ab4c2SVille Syrjälä } else { 686fa3ab4c2SVille Syrjälä crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", 687fa3ab4c2SVille Syrjälä drm_num_crtcs(dev)); 688fa3ab4c2SVille Syrjälä } 689fa3ab4c2SVille Syrjälä if (!crtc->name) { 6907c8f6d25SDave Airlie drm_mode_object_unregister(dev, &crtc->base); 691fa3ab4c2SVille Syrjälä return -ENOMEM; 692fa3ab4c2SVille Syrjälä } 693fa3ab4c2SVille Syrjälä 694bffd9de0SPaulo Zanoni crtc->base.properties = &crtc->properties; 695bffd9de0SPaulo Zanoni 69651fd371bSRob Clark list_add_tail(&crtc->head, &config->crtc_list); 69751fd371bSRob Clark config->num_crtc++; 6986bfc56aaSVille Syrjälä 699e13161afSMatt Roper crtc->primary = primary; 700fc1d3e44SMatt Roper crtc->cursor = cursor; 701e13161afSMatt Roper if (primary) 702e13161afSMatt Roper primary->possible_crtcs = 1 << drm_crtc_index(crtc); 703fc1d3e44SMatt Roper if (cursor) 704fc1d3e44SMatt Roper cursor->possible_crtcs = 1 << drm_crtc_index(crtc); 705e13161afSMatt Roper 706eab3bbefSDaniel Vetter if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 707eab3bbefSDaniel Vetter drm_object_attach_property(&crtc->base, config->prop_active, 0); 708955f3c33SDaniel Stone drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); 709eab3bbefSDaniel Vetter } 710eab3bbefSDaniel Vetter 711baf698b0SDaniel Vetter return 0; 712f453ba04SDave Airlie } 713e13161afSMatt Roper EXPORT_SYMBOL(drm_crtc_init_with_planes); 714f453ba04SDave Airlie 715f453ba04SDave Airlie /** 716ad6f5c34SVille Syrjälä * drm_crtc_cleanup - Clean up the core crtc usage 717f453ba04SDave Airlie * @crtc: CRTC to cleanup 718f453ba04SDave Airlie * 719ad6f5c34SVille Syrjälä * This function cleans up @crtc and removes it from the DRM mode setting 720ad6f5c34SVille Syrjälä * core. Note that the function does *not* free the crtc structure itself, 721ad6f5c34SVille Syrjälä * this is the responsibility of the caller. 722f453ba04SDave Airlie */ 723f453ba04SDave Airlie void drm_crtc_cleanup(struct drm_crtc *crtc) 724f453ba04SDave Airlie { 725f453ba04SDave Airlie struct drm_device *dev = crtc->dev; 726f453ba04SDave Airlie 727f453ba04SDave Airlie kfree(crtc->gamma_store); 728f453ba04SDave Airlie crtc->gamma_store = NULL; 729f453ba04SDave Airlie 73051fd371bSRob Clark drm_modeset_lock_fini(&crtc->mutex); 73151fd371bSRob Clark 7327c8f6d25SDave Airlie drm_mode_object_unregister(dev, &crtc->base); 733f453ba04SDave Airlie list_del(&crtc->head); 734f453ba04SDave Airlie dev->mode_config.num_crtc--; 7353009c037SThierry Reding 7363009c037SThierry Reding WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); 7373009c037SThierry Reding if (crtc->state && crtc->funcs->atomic_destroy_state) 7383009c037SThierry Reding crtc->funcs->atomic_destroy_state(crtc, crtc->state); 739a18c0af1SThierry Reding 740fa3ab4c2SVille Syrjälä kfree(crtc->name); 741fa3ab4c2SVille Syrjälä 742a18c0af1SThierry Reding memset(crtc, 0, sizeof(*crtc)); 743f453ba04SDave Airlie } 744f453ba04SDave Airlie EXPORT_SYMBOL(drm_crtc_cleanup); 745f453ba04SDave Airlie 746f453ba04SDave Airlie /** 747db5f7a6eSRussell King * drm_crtc_index - find the index of a registered CRTC 748db5f7a6eSRussell King * @crtc: CRTC to find index for 749db5f7a6eSRussell King * 750db5f7a6eSRussell King * Given a registered CRTC, return the index of that CRTC within a DRM 751db5f7a6eSRussell King * device's list of CRTCs. 752db5f7a6eSRussell King */ 753db5f7a6eSRussell King unsigned int drm_crtc_index(struct drm_crtc *crtc) 754db5f7a6eSRussell King { 755db5f7a6eSRussell King unsigned int index = 0; 756db5f7a6eSRussell King struct drm_crtc *tmp; 757db5f7a6eSRussell King 758e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) { 759db5f7a6eSRussell King if (tmp == crtc) 760db5f7a6eSRussell King return index; 761db5f7a6eSRussell King 762db5f7a6eSRussell King index++; 763db5f7a6eSRussell King } 764db5f7a6eSRussell King 765db5f7a6eSRussell King BUG(); 766db5f7a6eSRussell King } 767db5f7a6eSRussell King EXPORT_SYMBOL(drm_crtc_index); 768db5f7a6eSRussell King 76986f422d5SLespiau, Damien /* 770f453ba04SDave Airlie * drm_mode_remove - remove and free a mode 771f453ba04SDave Airlie * @connector: connector list to modify 772f453ba04SDave Airlie * @mode: mode to remove 773f453ba04SDave Airlie * 774f453ba04SDave Airlie * Remove @mode from @connector's mode list, then free it. 775f453ba04SDave Airlie */ 77686f422d5SLespiau, Damien static void drm_mode_remove(struct drm_connector *connector, 777f453ba04SDave Airlie struct drm_display_mode *mode) 778f453ba04SDave Airlie { 779f453ba04SDave Airlie list_del(&mode->head); 780554f1d78SSascha Hauer drm_mode_destroy(connector->dev, mode); 781f453ba04SDave Airlie } 782f453ba04SDave Airlie 783f453ba04SDave Airlie /** 784b5571e9dSBoris Brezillon * drm_display_info_set_bus_formats - set the supported bus formats 785b5571e9dSBoris Brezillon * @info: display info to store bus formats in 786e37bfa1aSBoris Brezillon * @formats: array containing the supported bus formats 787e37bfa1aSBoris Brezillon * @num_formats: the number of entries in the fmts array 788b5571e9dSBoris Brezillon * 789b5571e9dSBoris Brezillon * Store the supported bus formats in display info structure. 790b5571e9dSBoris Brezillon * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for 791b5571e9dSBoris Brezillon * a full list of available formats. 792b5571e9dSBoris Brezillon */ 793b5571e9dSBoris Brezillon int drm_display_info_set_bus_formats(struct drm_display_info *info, 794b5571e9dSBoris Brezillon const u32 *formats, 795b5571e9dSBoris Brezillon unsigned int num_formats) 796b5571e9dSBoris Brezillon { 797b5571e9dSBoris Brezillon u32 *fmts = NULL; 798b5571e9dSBoris Brezillon 799b5571e9dSBoris Brezillon if (!formats && num_formats) 800b5571e9dSBoris Brezillon return -EINVAL; 801b5571e9dSBoris Brezillon 802b5571e9dSBoris Brezillon if (formats && num_formats) { 803b5571e9dSBoris Brezillon fmts = kmemdup(formats, sizeof(*formats) * num_formats, 804b5571e9dSBoris Brezillon GFP_KERNEL); 805944579c5SDan Carpenter if (!fmts) 806b5571e9dSBoris Brezillon return -ENOMEM; 807b5571e9dSBoris Brezillon } 808b5571e9dSBoris Brezillon 809b5571e9dSBoris Brezillon kfree(info->bus_formats); 810b5571e9dSBoris Brezillon info->bus_formats = fmts; 811b5571e9dSBoris Brezillon info->num_bus_formats = num_formats; 812b5571e9dSBoris Brezillon 813b5571e9dSBoris Brezillon return 0; 814b5571e9dSBoris Brezillon } 815b5571e9dSBoris Brezillon EXPORT_SYMBOL(drm_display_info_set_bus_formats); 816b5571e9dSBoris Brezillon 817b5571e9dSBoris Brezillon /** 818eaf99c74SChris Wilson * drm_connector_get_cmdline_mode - reads the user's cmdline mode 819eaf99c74SChris Wilson * @connector: connector to quwery 820eaf99c74SChris Wilson * 821eaf99c74SChris Wilson * The kernel supports per-connector configration of its consoles through 822eaf99c74SChris Wilson * use of the video= parameter. This function parses that option and 823eaf99c74SChris Wilson * extracts the user's specified mode (or enable/disable status) for a 824eaf99c74SChris Wilson * particular connector. This is typically only used during the early fbdev 825eaf99c74SChris Wilson * setup. 826eaf99c74SChris Wilson */ 827eaf99c74SChris Wilson static void drm_connector_get_cmdline_mode(struct drm_connector *connector) 828eaf99c74SChris Wilson { 829eaf99c74SChris Wilson struct drm_cmdline_mode *mode = &connector->cmdline_mode; 830eaf99c74SChris Wilson char *option = NULL; 831eaf99c74SChris Wilson 832eaf99c74SChris Wilson if (fb_get_options(connector->name, &option)) 833eaf99c74SChris Wilson return; 834eaf99c74SChris Wilson 835eaf99c74SChris Wilson if (!drm_mode_parse_command_line_for_connector(option, 836eaf99c74SChris Wilson connector, 837eaf99c74SChris Wilson mode)) 838eaf99c74SChris Wilson return; 839eaf99c74SChris Wilson 840eaf99c74SChris Wilson if (mode->force) { 841eaf99c74SChris Wilson const char *s; 842eaf99c74SChris Wilson 843eaf99c74SChris Wilson switch (mode->force) { 844eaf99c74SChris Wilson case DRM_FORCE_OFF: 845eaf99c74SChris Wilson s = "OFF"; 846eaf99c74SChris Wilson break; 847eaf99c74SChris Wilson case DRM_FORCE_ON_DIGITAL: 848eaf99c74SChris Wilson s = "ON - dig"; 849eaf99c74SChris Wilson break; 850eaf99c74SChris Wilson default: 851eaf99c74SChris Wilson case DRM_FORCE_ON: 852eaf99c74SChris Wilson s = "ON"; 853eaf99c74SChris Wilson break; 854eaf99c74SChris Wilson } 855eaf99c74SChris Wilson 856eaf99c74SChris Wilson DRM_INFO("forcing %s connector %s\n", connector->name, s); 857eaf99c74SChris Wilson connector->force = mode->force; 858eaf99c74SChris Wilson } 859eaf99c74SChris Wilson 860eaf99c74SChris Wilson DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", 861eaf99c74SChris Wilson connector->name, 862eaf99c74SChris Wilson mode->xres, mode->yres, 863eaf99c74SChris Wilson mode->refresh_specified ? mode->refresh : 60, 864eaf99c74SChris Wilson mode->rb ? " reduced blanking" : "", 865eaf99c74SChris Wilson mode->margins ? " with margins" : "", 866eaf99c74SChris Wilson mode->interlace ? " interlaced" : ""); 867eaf99c74SChris Wilson } 868eaf99c74SChris Wilson 869eaf99c74SChris Wilson /** 870f453ba04SDave Airlie * drm_connector_init - Init a preallocated connector 871f453ba04SDave Airlie * @dev: DRM device 872f453ba04SDave Airlie * @connector: the connector to init 873f453ba04SDave Airlie * @funcs: callbacks for this connector 874065a50edSDaniel Vetter * @connector_type: user visible type of the connector 875f453ba04SDave Airlie * 876f453ba04SDave Airlie * Initialises a preallocated connector. Connectors should be 877f453ba04SDave Airlie * subclassed as part of driver connector objects. 8786bfc56aaSVille Syrjälä * 879c8e32cc1SDaniel Vetter * Returns: 8806bfc56aaSVille Syrjälä * Zero on success, error code on failure. 881f453ba04SDave Airlie */ 8826bfc56aaSVille Syrjälä int drm_connector_init(struct drm_device *dev, 883f453ba04SDave Airlie struct drm_connector *connector, 884f453ba04SDave Airlie const struct drm_connector_funcs *funcs, 885f453ba04SDave Airlie int connector_type) 886f453ba04SDave Airlie { 887ae16c597SRob Clark struct drm_mode_config *config = &dev->mode_config; 8886bfc56aaSVille Syrjälä int ret; 889b21e3afeSIlia Mirkin struct ida *connector_ida = 890b21e3afeSIlia Mirkin &drm_connector_enum_list[connector_type].ida; 8916bfc56aaSVille Syrjälä 89284849903SDaniel Vetter drm_modeset_lock_all(dev); 893f453ba04SDave Airlie 894d0f37cf6SDave Airlie ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false, NULL); 8956bfc56aaSVille Syrjälä if (ret) 8962abdd313SJani Nikula goto out_unlock; 8976bfc56aaSVille Syrjälä 8987e3bdf4aSPaulo Zanoni connector->base.properties = &connector->properties; 899f453ba04SDave Airlie connector->dev = dev; 900f453ba04SDave Airlie connector->funcs = funcs; 9015fff80bbSMaarten Lankhorst 9025fff80bbSMaarten Lankhorst connector->connector_id = ida_simple_get(&config->connector_ida, 0, 0, GFP_KERNEL); 9035fff80bbSMaarten Lankhorst if (connector->connector_id < 0) { 9045fff80bbSMaarten Lankhorst ret = connector->connector_id; 9055fff80bbSMaarten Lankhorst goto out_put; 9065fff80bbSMaarten Lankhorst } 9075fff80bbSMaarten Lankhorst 908f453ba04SDave Airlie connector->connector_type = connector_type; 909f453ba04SDave Airlie connector->connector_type_id = 910b21e3afeSIlia Mirkin ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); 911b21e3afeSIlia Mirkin if (connector->connector_type_id < 0) { 912b21e3afeSIlia Mirkin ret = connector->connector_type_id; 9135fff80bbSMaarten Lankhorst goto out_put_id; 914b21e3afeSIlia Mirkin } 9152abdd313SJani Nikula connector->name = 9162abdd313SJani Nikula kasprintf(GFP_KERNEL, "%s-%d", 9172abdd313SJani Nikula drm_connector_enum_list[connector_type].name, 9182abdd313SJani Nikula connector->connector_type_id); 9192abdd313SJani Nikula if (!connector->name) { 9202abdd313SJani Nikula ret = -ENOMEM; 9215fff80bbSMaarten Lankhorst goto out_put_type_id; 9222abdd313SJani Nikula } 9232abdd313SJani Nikula 924f453ba04SDave Airlie INIT_LIST_HEAD(&connector->probed_modes); 925f453ba04SDave Airlie INIT_LIST_HEAD(&connector->modes); 926f453ba04SDave Airlie connector->edid_blob_ptr = NULL; 9275e2cb2f6SDaniel Vetter connector->status = connector_status_unknown; 928f453ba04SDave Airlie 929eaf99c74SChris Wilson drm_connector_get_cmdline_mode(connector); 930eaf99c74SChris Wilson 931c7eb76f4SDaniel Vetter /* We should add connectors at the end to avoid upsetting the connector 932c7eb76f4SDaniel Vetter * index too much. */ 933ae16c597SRob Clark list_add_tail(&connector->head, &config->connector_list); 934ae16c597SRob Clark config->num_connector++; 935f453ba04SDave Airlie 936a7331e5cSThomas Hellstrom if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) 93758495563SRob Clark drm_object_attach_property(&connector->base, 938ae16c597SRob Clark config->edid_property, 939a7331e5cSThomas Hellstrom 0); 940f453ba04SDave Airlie 94158495563SRob Clark drm_object_attach_property(&connector->base, 942ae16c597SRob Clark config->dpms_property, 0); 943ae16c597SRob Clark 944ae16c597SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 945ae16c597SRob Clark drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); 946ae16c597SRob Clark } 947f453ba04SDave Airlie 94830f65707SThomas Wood connector->debugfs_entry = NULL; 9495fff80bbSMaarten Lankhorst out_put_type_id: 9505fff80bbSMaarten Lankhorst if (ret) 9515fff80bbSMaarten Lankhorst ida_remove(connector_ida, connector->connector_type_id); 9525fff80bbSMaarten Lankhorst out_put_id: 9535fff80bbSMaarten Lankhorst if (ret) 9545fff80bbSMaarten Lankhorst ida_remove(&config->connector_ida, connector->connector_id); 9552abdd313SJani Nikula out_put: 9562abdd313SJani Nikula if (ret) 9577c8f6d25SDave Airlie drm_mode_object_unregister(dev, &connector->base); 9582abdd313SJani Nikula 9592abdd313SJani Nikula out_unlock: 96084849903SDaniel Vetter drm_modeset_unlock_all(dev); 9616bfc56aaSVille Syrjälä 9626bfc56aaSVille Syrjälä return ret; 963f453ba04SDave Airlie } 964f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_init); 965f453ba04SDave Airlie 966f453ba04SDave Airlie /** 967f453ba04SDave Airlie * drm_connector_cleanup - cleans up an initialised connector 968f453ba04SDave Airlie * @connector: connector to cleanup 969f453ba04SDave Airlie * 970f453ba04SDave Airlie * Cleans up the connector but doesn't free the object. 971f453ba04SDave Airlie */ 972f453ba04SDave Airlie void drm_connector_cleanup(struct drm_connector *connector) 973f453ba04SDave Airlie { 974f453ba04SDave Airlie struct drm_device *dev = connector->dev; 975f453ba04SDave Airlie struct drm_display_mode *mode, *t; 976f453ba04SDave Airlie 97740d9b043SDave Airlie if (connector->tile_group) { 97840d9b043SDave Airlie drm_mode_put_tile_group(dev, connector->tile_group); 97940d9b043SDave Airlie connector->tile_group = NULL; 98040d9b043SDave Airlie } 98140d9b043SDave Airlie 982f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 983f453ba04SDave Airlie drm_mode_remove(connector, mode); 984f453ba04SDave Airlie 985f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->modes, head) 986f453ba04SDave Airlie drm_mode_remove(connector, mode); 987f453ba04SDave Airlie 988b21e3afeSIlia Mirkin ida_remove(&drm_connector_enum_list[connector->connector_type].ida, 989b21e3afeSIlia Mirkin connector->connector_type_id); 990b21e3afeSIlia Mirkin 9915fff80bbSMaarten Lankhorst ida_remove(&dev->mode_config.connector_ida, 9925fff80bbSMaarten Lankhorst connector->connector_id); 9935fff80bbSMaarten Lankhorst 994b5571e9dSBoris Brezillon kfree(connector->display_info.bus_formats); 9957c8f6d25SDave Airlie drm_mode_object_unregister(dev, &connector->base); 9962abdd313SJani Nikula kfree(connector->name); 9972abdd313SJani Nikula connector->name = NULL; 998f453ba04SDave Airlie list_del(&connector->head); 9996380c509SJoonyoung Shim dev->mode_config.num_connector--; 10003009c037SThierry Reding 10013009c037SThierry Reding WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); 10023009c037SThierry Reding if (connector->state && connector->funcs->atomic_destroy_state) 10033009c037SThierry Reding connector->funcs->atomic_destroy_state(connector, 10043009c037SThierry Reding connector->state); 1005a18c0af1SThierry Reding 1006a18c0af1SThierry Reding memset(connector, 0, sizeof(*connector)); 1007f453ba04SDave Airlie } 1008f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_cleanup); 1009f453ba04SDave Airlie 1010c8e32cc1SDaniel Vetter /** 101134ea3d38SThomas Wood * drm_connector_register - register a connector 101234ea3d38SThomas Wood * @connector: the connector to register 101334ea3d38SThomas Wood * 101434ea3d38SThomas Wood * Register userspace interfaces for a connector 101534ea3d38SThomas Wood * 101634ea3d38SThomas Wood * Returns: 101734ea3d38SThomas Wood * Zero on success, error code on failure. 101834ea3d38SThomas Wood */ 101934ea3d38SThomas Wood int drm_connector_register(struct drm_connector *connector) 102034ea3d38SThomas Wood { 102130f65707SThomas Wood int ret; 102230f65707SThomas Wood 10232ee39452SDave Airlie drm_mode_object_register(connector->dev, &connector->base); 10242ee39452SDave Airlie 102530f65707SThomas Wood ret = drm_sysfs_connector_add(connector); 102630f65707SThomas Wood if (ret) 102730f65707SThomas Wood return ret; 102830f65707SThomas Wood 102930f65707SThomas Wood ret = drm_debugfs_connector_add(connector); 103030f65707SThomas Wood if (ret) { 103130f65707SThomas Wood drm_sysfs_connector_remove(connector); 103230f65707SThomas Wood return ret; 103330f65707SThomas Wood } 103430f65707SThomas Wood 103530f65707SThomas Wood return 0; 103634ea3d38SThomas Wood } 103734ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_register); 103834ea3d38SThomas Wood 103934ea3d38SThomas Wood /** 104034ea3d38SThomas Wood * drm_connector_unregister - unregister a connector 104134ea3d38SThomas Wood * @connector: the connector to unregister 104234ea3d38SThomas Wood * 104334ea3d38SThomas Wood * Unregister userspace interfaces for a connector 104434ea3d38SThomas Wood */ 104534ea3d38SThomas Wood void drm_connector_unregister(struct drm_connector *connector) 104634ea3d38SThomas Wood { 104734ea3d38SThomas Wood drm_sysfs_connector_remove(connector); 104830f65707SThomas Wood drm_debugfs_connector_remove(connector); 104934ea3d38SThomas Wood } 105034ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_unregister); 105134ea3d38SThomas Wood 105234ea3d38SThomas Wood /** 105354d2c2daSAlexey Brodkin * drm_connector_register_all - register all connectors 105454d2c2daSAlexey Brodkin * @dev: drm device 105554d2c2daSAlexey Brodkin * 105654d2c2daSAlexey Brodkin * This function registers all connectors in sysfs and other places so that 105754d2c2daSAlexey Brodkin * userspace can start to access them. Drivers can call it after calling 105854d2c2daSAlexey Brodkin * drm_dev_register() to complete the device registration, if they don't call 105954d2c2daSAlexey Brodkin * drm_connector_register() on each connector individually. 106054d2c2daSAlexey Brodkin * 106154d2c2daSAlexey Brodkin * When a device is unplugged and should be removed from userspace access, 106254d2c2daSAlexey Brodkin * call drm_connector_unregister_all(), which is the inverse of this 106354d2c2daSAlexey Brodkin * function. 106454d2c2daSAlexey Brodkin * 106554d2c2daSAlexey Brodkin * Returns: 106654d2c2daSAlexey Brodkin * Zero on success, error code on failure. 106754d2c2daSAlexey Brodkin */ 106854d2c2daSAlexey Brodkin int drm_connector_register_all(struct drm_device *dev) 106954d2c2daSAlexey Brodkin { 107054d2c2daSAlexey Brodkin struct drm_connector *connector; 107154d2c2daSAlexey Brodkin int ret; 107254d2c2daSAlexey Brodkin 107354d2c2daSAlexey Brodkin mutex_lock(&dev->mode_config.mutex); 107454d2c2daSAlexey Brodkin 107554d2c2daSAlexey Brodkin drm_for_each_connector(connector, dev) { 107654d2c2daSAlexey Brodkin ret = drm_connector_register(connector); 107754d2c2daSAlexey Brodkin if (ret) 107854d2c2daSAlexey Brodkin goto err; 107954d2c2daSAlexey Brodkin } 108054d2c2daSAlexey Brodkin 108154d2c2daSAlexey Brodkin mutex_unlock(&dev->mode_config.mutex); 108254d2c2daSAlexey Brodkin 108354d2c2daSAlexey Brodkin return 0; 108454d2c2daSAlexey Brodkin 108554d2c2daSAlexey Brodkin err: 108654d2c2daSAlexey Brodkin mutex_unlock(&dev->mode_config.mutex); 108754d2c2daSAlexey Brodkin drm_connector_unregister_all(dev); 108854d2c2daSAlexey Brodkin return ret; 108954d2c2daSAlexey Brodkin } 109054d2c2daSAlexey Brodkin EXPORT_SYMBOL(drm_connector_register_all); 109154d2c2daSAlexey Brodkin 109254d2c2daSAlexey Brodkin /** 10936c87e5c3SAlexey Brodkin * drm_connector_unregister_all - unregister connector userspace interfaces 1094c8e32cc1SDaniel Vetter * @dev: drm device 1095c8e32cc1SDaniel Vetter * 10966c87e5c3SAlexey Brodkin * This functions unregisters all connectors from sysfs and other places so 10976c87e5c3SAlexey Brodkin * that userspace can no longer access them. Drivers should call this as the 10986c87e5c3SAlexey Brodkin * first step tearing down the device instace, or when the underlying 10996c87e5c3SAlexey Brodkin * physical device disappeared (e.g. USB unplug), right before calling 11006c87e5c3SAlexey Brodkin * drm_dev_unregister(). 1101c8e32cc1SDaniel Vetter */ 11026c87e5c3SAlexey Brodkin void drm_connector_unregister_all(struct drm_device *dev) 1103cbc7e221SDave Airlie { 1104cbc7e221SDave Airlie struct drm_connector *connector; 1105cbc7e221SDave Airlie 11069a9f5ce8SDaniel Vetter /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ 110714ba0031SLaurent Pinchart list_for_each_entry(connector, &dev->mode_config.connector_list, head) 110834ea3d38SThomas Wood drm_connector_unregister(connector); 1109cbc7e221SDave Airlie } 11106c87e5c3SAlexey Brodkin EXPORT_SYMBOL(drm_connector_unregister_all); 1111cbc7e221SDave Airlie 1112c8e32cc1SDaniel Vetter /** 1113c8e32cc1SDaniel Vetter * drm_encoder_init - Init a preallocated encoder 1114c8e32cc1SDaniel Vetter * @dev: drm device 1115c8e32cc1SDaniel Vetter * @encoder: the encoder to init 1116c8e32cc1SDaniel Vetter * @funcs: callbacks for this encoder 1117c8e32cc1SDaniel Vetter * @encoder_type: user visible type of the encoder 111813a3d91fSVille Syrjälä * @name: printf style format string for the encoder name, or NULL for default name 1119c8e32cc1SDaniel Vetter * 1120c8e32cc1SDaniel Vetter * Initialises a preallocated encoder. Encoder should be 1121c8e32cc1SDaniel Vetter * subclassed as part of driver encoder objects. 1122c8e32cc1SDaniel Vetter * 1123c8e32cc1SDaniel Vetter * Returns: 1124c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 1125c8e32cc1SDaniel Vetter */ 11266bfc56aaSVille Syrjälä int drm_encoder_init(struct drm_device *dev, 1127f453ba04SDave Airlie struct drm_encoder *encoder, 1128f453ba04SDave Airlie const struct drm_encoder_funcs *funcs, 112913a3d91fSVille Syrjälä int encoder_type, const char *name, ...) 1130f453ba04SDave Airlie { 11316bfc56aaSVille Syrjälä int ret; 11326bfc56aaSVille Syrjälä 113384849903SDaniel Vetter drm_modeset_lock_all(dev); 1134f453ba04SDave Airlie 11356bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); 11366bfc56aaSVille Syrjälä if (ret) 1137e5748946SJani Nikula goto out_unlock; 1138f453ba04SDave Airlie 11396bfc56aaSVille Syrjälä encoder->dev = dev; 1140f453ba04SDave Airlie encoder->encoder_type = encoder_type; 1141f453ba04SDave Airlie encoder->funcs = funcs; 114286bf546bSVille Syrjälä if (name) { 114386bf546bSVille Syrjälä va_list ap; 114486bf546bSVille Syrjälä 114586bf546bSVille Syrjälä va_start(ap, name); 114686bf546bSVille Syrjälä encoder->name = kvasprintf(GFP_KERNEL, name, ap); 114786bf546bSVille Syrjälä va_end(ap); 114886bf546bSVille Syrjälä } else { 1149e5748946SJani Nikula encoder->name = kasprintf(GFP_KERNEL, "%s-%d", 1150e5748946SJani Nikula drm_encoder_enum_list[encoder_type].name, 1151e5748946SJani Nikula encoder->base.id); 115286bf546bSVille Syrjälä } 1153e5748946SJani Nikula if (!encoder->name) { 1154e5748946SJani Nikula ret = -ENOMEM; 1155e5748946SJani Nikula goto out_put; 1156e5748946SJani Nikula } 1157f453ba04SDave Airlie 1158f453ba04SDave Airlie list_add_tail(&encoder->head, &dev->mode_config.encoder_list); 1159f453ba04SDave Airlie dev->mode_config.num_encoder++; 1160f453ba04SDave Airlie 1161e5748946SJani Nikula out_put: 1162e5748946SJani Nikula if (ret) 11637c8f6d25SDave Airlie drm_mode_object_unregister(dev, &encoder->base); 1164e5748946SJani Nikula 1165e5748946SJani Nikula out_unlock: 116684849903SDaniel Vetter drm_modeset_unlock_all(dev); 11676bfc56aaSVille Syrjälä 11686bfc56aaSVille Syrjälä return ret; 1169f453ba04SDave Airlie } 1170f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_init); 1171f453ba04SDave Airlie 1172c8e32cc1SDaniel Vetter /** 117347d7777fSMaarten Lankhorst * drm_encoder_index - find the index of a registered encoder 117447d7777fSMaarten Lankhorst * @encoder: encoder to find index for 117547d7777fSMaarten Lankhorst * 117647d7777fSMaarten Lankhorst * Given a registered encoder, return the index of that encoder within a DRM 117747d7777fSMaarten Lankhorst * device's list of encoders. 117847d7777fSMaarten Lankhorst */ 117947d7777fSMaarten Lankhorst unsigned int drm_encoder_index(struct drm_encoder *encoder) 118047d7777fSMaarten Lankhorst { 118147d7777fSMaarten Lankhorst unsigned int index = 0; 118247d7777fSMaarten Lankhorst struct drm_encoder *tmp; 118347d7777fSMaarten Lankhorst 118447d7777fSMaarten Lankhorst drm_for_each_encoder(tmp, encoder->dev) { 118547d7777fSMaarten Lankhorst if (tmp == encoder) 118647d7777fSMaarten Lankhorst return index; 118747d7777fSMaarten Lankhorst 118847d7777fSMaarten Lankhorst index++; 118947d7777fSMaarten Lankhorst } 119047d7777fSMaarten Lankhorst 119147d7777fSMaarten Lankhorst BUG(); 119247d7777fSMaarten Lankhorst } 119347d7777fSMaarten Lankhorst EXPORT_SYMBOL(drm_encoder_index); 119447d7777fSMaarten Lankhorst 119547d7777fSMaarten Lankhorst /** 1196c8e32cc1SDaniel Vetter * drm_encoder_cleanup - cleans up an initialised encoder 1197c8e32cc1SDaniel Vetter * @encoder: encoder to cleanup 1198c8e32cc1SDaniel Vetter * 1199c8e32cc1SDaniel Vetter * Cleans up the encoder but doesn't free the object. 1200c8e32cc1SDaniel Vetter */ 1201f453ba04SDave Airlie void drm_encoder_cleanup(struct drm_encoder *encoder) 1202f453ba04SDave Airlie { 1203f453ba04SDave Airlie struct drm_device *dev = encoder->dev; 12044dfd909fSThierry Reding 120584849903SDaniel Vetter drm_modeset_lock_all(dev); 12067c8f6d25SDave Airlie drm_mode_object_unregister(dev, &encoder->base); 1207e5748946SJani Nikula kfree(encoder->name); 1208f453ba04SDave Airlie list_del(&encoder->head); 12096380c509SJoonyoung Shim dev->mode_config.num_encoder--; 121084849903SDaniel Vetter drm_modeset_unlock_all(dev); 1211a18c0af1SThierry Reding 1212a18c0af1SThierry Reding memset(encoder, 0, sizeof(*encoder)); 1213f453ba04SDave Airlie } 1214f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_cleanup); 1215f453ba04SDave Airlie 12169f4c97a2SVille Syrjälä static unsigned int drm_num_planes(struct drm_device *dev) 12179f4c97a2SVille Syrjälä { 12189f4c97a2SVille Syrjälä unsigned int num = 0; 12199f4c97a2SVille Syrjälä struct drm_plane *tmp; 12209f4c97a2SVille Syrjälä 12219f4c97a2SVille Syrjälä drm_for_each_plane(tmp, dev) { 12229f4c97a2SVille Syrjälä num++; 12239f4c97a2SVille Syrjälä } 12249f4c97a2SVille Syrjälä 12259f4c97a2SVille Syrjälä return num; 12269f4c97a2SVille Syrjälä } 12279f4c97a2SVille Syrjälä 122835f2c3aeSVille Syrjälä /** 1229dc415ff9SMatt Roper * drm_universal_plane_init - Initialize a new universal plane object 123035f2c3aeSVille Syrjälä * @dev: DRM device 123135f2c3aeSVille Syrjälä * @plane: plane object to init 123235f2c3aeSVille Syrjälä * @possible_crtcs: bitmask of possible CRTCs 123335f2c3aeSVille Syrjälä * @funcs: callbacks for the new plane 123435f2c3aeSVille Syrjälä * @formats: array of supported formats (%DRM_FORMAT_*) 123535f2c3aeSVille Syrjälä * @format_count: number of elements in @formats 1236dc415ff9SMatt Roper * @type: type of plane (overlay, primary, cursor) 1237b0b3b795SVille Syrjälä * @name: printf style format string for the plane name, or NULL for default name 123835f2c3aeSVille Syrjälä * 1239dc415ff9SMatt Roper * Initializes a plane object of type @type. 124035f2c3aeSVille Syrjälä * 1241c8e32cc1SDaniel Vetter * Returns: 124235f2c3aeSVille Syrjälä * Zero on success, error code on failure. 124335f2c3aeSVille Syrjälä */ 1244dc415ff9SMatt Roper int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, 12458cf5c917SJesse Barnes unsigned long possible_crtcs, 12468cf5c917SJesse Barnes const struct drm_plane_funcs *funcs, 124745e3743aSThierry Reding const uint32_t *formats, unsigned int format_count, 1248b0b3b795SVille Syrjälä enum drm_plane_type type, 1249b0b3b795SVille Syrjälä const char *name, ...) 12508cf5c917SJesse Barnes { 12516b4959f4SRob Clark struct drm_mode_config *config = &dev->mode_config; 12526bfc56aaSVille Syrjälä int ret; 12536bfc56aaSVille Syrjälä 12546bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); 12556bfc56aaSVille Syrjälä if (ret) 1256baf698b0SDaniel Vetter return ret; 12576bfc56aaSVille Syrjälä 12584d02e2deSDaniel Vetter drm_modeset_lock_init(&plane->mutex); 12594d02e2deSDaniel Vetter 12604d93914aSRob Clark plane->base.properties = &plane->properties; 12618cf5c917SJesse Barnes plane->dev = dev; 12628cf5c917SJesse Barnes plane->funcs = funcs; 12632f6c5389SThierry Reding plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), 12648cf5c917SJesse Barnes GFP_KERNEL); 12658cf5c917SJesse Barnes if (!plane->format_types) { 12668cf5c917SJesse Barnes DRM_DEBUG_KMS("out of memory when allocating plane\n"); 12677c8f6d25SDave Airlie drm_mode_object_unregister(dev, &plane->base); 1268baf698b0SDaniel Vetter return -ENOMEM; 12698cf5c917SJesse Barnes } 12708cf5c917SJesse Barnes 12719f4c97a2SVille Syrjälä if (name) { 12729f4c97a2SVille Syrjälä va_list ap; 12739f4c97a2SVille Syrjälä 12749f4c97a2SVille Syrjälä va_start(ap, name); 12759f4c97a2SVille Syrjälä plane->name = kvasprintf(GFP_KERNEL, name, ap); 12769f4c97a2SVille Syrjälä va_end(ap); 12779f4c97a2SVille Syrjälä } else { 12789f4c97a2SVille Syrjälä plane->name = kasprintf(GFP_KERNEL, "plane-%d", 12799f4c97a2SVille Syrjälä drm_num_planes(dev)); 12809f4c97a2SVille Syrjälä } 12819f4c97a2SVille Syrjälä if (!plane->name) { 12829f4c97a2SVille Syrjälä kfree(plane->format_types); 12837c8f6d25SDave Airlie drm_mode_object_unregister(dev, &plane->base); 12849f4c97a2SVille Syrjälä return -ENOMEM; 12859f4c97a2SVille Syrjälä } 12869f4c97a2SVille Syrjälä 1287308e5bcbSJesse Barnes memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); 12888cf5c917SJesse Barnes plane->format_count = format_count; 12898cf5c917SJesse Barnes plane->possible_crtcs = possible_crtcs; 1290dc415ff9SMatt Roper plane->type = type; 12918cf5c917SJesse Barnes 12926b4959f4SRob Clark list_add_tail(&plane->head, &config->plane_list); 12936b4959f4SRob Clark config->num_total_plane++; 1294e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 12956b4959f4SRob Clark config->num_overlay_plane++; 12968cf5c917SJesse Barnes 12979922ab5aSRob Clark drm_object_attach_property(&plane->base, 12986b4959f4SRob Clark config->plane_type_property, 12999922ab5aSRob Clark plane->type); 13009922ab5aSRob Clark 13016b4959f4SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 13026b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_fb_id, 0); 13036b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); 13046b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); 13056b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); 13066b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); 13076b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); 13086b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_x, 0); 13096b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_y, 0); 13106b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_w, 0); 13116b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_h, 0); 13126b4959f4SRob Clark } 13136b4959f4SRob Clark 1314baf698b0SDaniel Vetter return 0; 13158cf5c917SJesse Barnes } 1316dc415ff9SMatt Roper EXPORT_SYMBOL(drm_universal_plane_init); 1317dc415ff9SMatt Roper 1318dc415ff9SMatt Roper /** 1319dc415ff9SMatt Roper * drm_plane_init - Initialize a legacy plane 1320dc415ff9SMatt Roper * @dev: DRM device 1321dc415ff9SMatt Roper * @plane: plane object to init 1322dc415ff9SMatt Roper * @possible_crtcs: bitmask of possible CRTCs 1323dc415ff9SMatt Roper * @funcs: callbacks for the new plane 1324dc415ff9SMatt Roper * @formats: array of supported formats (%DRM_FORMAT_*) 1325dc415ff9SMatt Roper * @format_count: number of elements in @formats 1326dc415ff9SMatt Roper * @is_primary: plane type (primary vs overlay) 1327dc415ff9SMatt Roper * 1328dc415ff9SMatt Roper * Legacy API to initialize a DRM plane. 1329dc415ff9SMatt Roper * 1330dc415ff9SMatt Roper * New drivers should call drm_universal_plane_init() instead. 1331dc415ff9SMatt Roper * 1332dc415ff9SMatt Roper * Returns: 1333dc415ff9SMatt Roper * Zero on success, error code on failure. 1334dc415ff9SMatt Roper */ 1335dc415ff9SMatt Roper int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, 1336dc415ff9SMatt Roper unsigned long possible_crtcs, 1337dc415ff9SMatt Roper const struct drm_plane_funcs *funcs, 133845e3743aSThierry Reding const uint32_t *formats, unsigned int format_count, 1339dc415ff9SMatt Roper bool is_primary) 1340dc415ff9SMatt Roper { 1341dc415ff9SMatt Roper enum drm_plane_type type; 1342dc415ff9SMatt Roper 1343dc415ff9SMatt Roper type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; 1344dc415ff9SMatt Roper return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, 1345b0b3b795SVille Syrjälä formats, format_count, type, NULL); 1346dc415ff9SMatt Roper } 13478cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_init); 13488cf5c917SJesse Barnes 134935f2c3aeSVille Syrjälä /** 135035f2c3aeSVille Syrjälä * drm_plane_cleanup - Clean up the core plane usage 135135f2c3aeSVille Syrjälä * @plane: plane to cleanup 135235f2c3aeSVille Syrjälä * 135335f2c3aeSVille Syrjälä * This function cleans up @plane and removes it from the DRM mode setting 135435f2c3aeSVille Syrjälä * core. Note that the function does *not* free the plane structure itself, 135535f2c3aeSVille Syrjälä * this is the responsibility of the caller. 135635f2c3aeSVille Syrjälä */ 13578cf5c917SJesse Barnes void drm_plane_cleanup(struct drm_plane *plane) 13588cf5c917SJesse Barnes { 13598cf5c917SJesse Barnes struct drm_device *dev = plane->dev; 13608cf5c917SJesse Barnes 136184849903SDaniel Vetter drm_modeset_lock_all(dev); 13628cf5c917SJesse Barnes kfree(plane->format_types); 13637c8f6d25SDave Airlie drm_mode_object_unregister(dev, &plane->base); 1364dc415ff9SMatt Roper 1365dc415ff9SMatt Roper BUG_ON(list_empty(&plane->head)); 1366dc415ff9SMatt Roper 13678cf5c917SJesse Barnes list_del(&plane->head); 1368e27dde3eSMatt Roper dev->mode_config.num_total_plane--; 1369e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 1370e27dde3eSMatt Roper dev->mode_config.num_overlay_plane--; 137184849903SDaniel Vetter drm_modeset_unlock_all(dev); 13723009c037SThierry Reding 13733009c037SThierry Reding WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); 13743009c037SThierry Reding if (plane->state && plane->funcs->atomic_destroy_state) 13753009c037SThierry Reding plane->funcs->atomic_destroy_state(plane, plane->state); 1376a18c0af1SThierry Reding 13779f4c97a2SVille Syrjälä kfree(plane->name); 13789f4c97a2SVille Syrjälä 1379a18c0af1SThierry Reding memset(plane, 0, sizeof(*plane)); 13808cf5c917SJesse Barnes } 13818cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_cleanup); 13828cf5c917SJesse Barnes 138335f2c3aeSVille Syrjälä /** 138410f637bfSDaniel Vetter * drm_plane_index - find the index of a registered plane 138510f637bfSDaniel Vetter * @plane: plane to find index for 138610f637bfSDaniel Vetter * 138710f637bfSDaniel Vetter * Given a registered plane, return the index of that CRTC within a DRM 138810f637bfSDaniel Vetter * device's list of planes. 138910f637bfSDaniel Vetter */ 139010f637bfSDaniel Vetter unsigned int drm_plane_index(struct drm_plane *plane) 139110f637bfSDaniel Vetter { 139210f637bfSDaniel Vetter unsigned int index = 0; 139310f637bfSDaniel Vetter struct drm_plane *tmp; 139410f637bfSDaniel Vetter 1395e4f62546SDaniel Vetter drm_for_each_plane(tmp, plane->dev) { 139610f637bfSDaniel Vetter if (tmp == plane) 139710f637bfSDaniel Vetter return index; 139810f637bfSDaniel Vetter 139910f637bfSDaniel Vetter index++; 140010f637bfSDaniel Vetter } 140110f637bfSDaniel Vetter 140210f637bfSDaniel Vetter BUG(); 140310f637bfSDaniel Vetter } 140410f637bfSDaniel Vetter EXPORT_SYMBOL(drm_plane_index); 140510f637bfSDaniel Vetter 140610f637bfSDaniel Vetter /** 1407f81338a5SChandra Konduru * drm_plane_from_index - find the registered plane at an index 1408f81338a5SChandra Konduru * @dev: DRM device 1409f81338a5SChandra Konduru * @idx: index of registered plane to find for 1410f81338a5SChandra Konduru * 1411f81338a5SChandra Konduru * Given a plane index, return the registered plane from DRM device's 1412f81338a5SChandra Konduru * list of planes with matching index. 1413f81338a5SChandra Konduru */ 1414f81338a5SChandra Konduru struct drm_plane * 1415f81338a5SChandra Konduru drm_plane_from_index(struct drm_device *dev, int idx) 1416f81338a5SChandra Konduru { 1417f81338a5SChandra Konduru struct drm_plane *plane; 1418f81338a5SChandra Konduru unsigned int i = 0; 1419f81338a5SChandra Konduru 14206295d607SDaniel Vetter drm_for_each_plane(plane, dev) { 1421f81338a5SChandra Konduru if (i == idx) 1422f81338a5SChandra Konduru return plane; 1423f81338a5SChandra Konduru i++; 1424f81338a5SChandra Konduru } 1425f81338a5SChandra Konduru return NULL; 1426f81338a5SChandra Konduru } 1427f81338a5SChandra Konduru EXPORT_SYMBOL(drm_plane_from_index); 1428f81338a5SChandra Konduru 1429f81338a5SChandra Konduru /** 143035f2c3aeSVille Syrjälä * drm_plane_force_disable - Forcibly disable a plane 143135f2c3aeSVille Syrjälä * @plane: plane to disable 143235f2c3aeSVille Syrjälä * 143335f2c3aeSVille Syrjälä * Forces the plane to be disabled. 143435f2c3aeSVille Syrjälä * 143535f2c3aeSVille Syrjälä * Used when the plane's current framebuffer is destroyed, 143635f2c3aeSVille Syrjälä * and when restoring fbdev mode. 143735f2c3aeSVille Syrjälä */ 14389125e618SVille Syrjälä void drm_plane_force_disable(struct drm_plane *plane) 14399125e618SVille Syrjälä { 14409125e618SVille Syrjälä int ret; 14419125e618SVille Syrjälä 14423d30a59bSDaniel Vetter if (!plane->fb) 14439125e618SVille Syrjälä return; 14449125e618SVille Syrjälä 14453d30a59bSDaniel Vetter plane->old_fb = plane->fb; 14469125e618SVille Syrjälä ret = plane->funcs->disable_plane(plane); 1447731cce48SDaniel Vetter if (ret) { 14489125e618SVille Syrjälä DRM_ERROR("failed to disable plane with busy fb\n"); 14493d30a59bSDaniel Vetter plane->old_fb = NULL; 1450731cce48SDaniel Vetter return; 1451731cce48SDaniel Vetter } 14529125e618SVille Syrjälä /* disconnect the plane from the fb and crtc: */ 1453220dd2bcSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 14543d30a59bSDaniel Vetter plane->old_fb = NULL; 14559125e618SVille Syrjälä plane->fb = NULL; 14569125e618SVille Syrjälä plane->crtc = NULL; 14579125e618SVille Syrjälä } 14589125e618SVille Syrjälä EXPORT_SYMBOL(drm_plane_force_disable); 14599125e618SVille Syrjälä 14606b4959f4SRob Clark static int drm_mode_create_standard_properties(struct drm_device *dev) 1461f453ba04SDave Airlie { 1462356af0e1SRob Clark struct drm_property *prop; 1463f453ba04SDave Airlie 1464f453ba04SDave Airlie /* 1465f453ba04SDave Airlie * Standard properties (apply to all connectors) 1466f453ba04SDave Airlie */ 1467356af0e1SRob Clark prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | 1468f453ba04SDave Airlie DRM_MODE_PROP_IMMUTABLE, 1469f453ba04SDave Airlie "EDID", 0); 1470356af0e1SRob Clark if (!prop) 1471356af0e1SRob Clark return -ENOMEM; 1472356af0e1SRob Clark dev->mode_config.edid_property = prop; 1473f453ba04SDave Airlie 1474356af0e1SRob Clark prop = drm_property_create_enum(dev, 0, 14754a67d391SSascha Hauer "DPMS", drm_dpms_enum_list, 14764a67d391SSascha Hauer ARRAY_SIZE(drm_dpms_enum_list)); 1477356af0e1SRob Clark if (!prop) 1478356af0e1SRob Clark return -ENOMEM; 1479356af0e1SRob Clark dev->mode_config.dpms_property = prop; 1480f453ba04SDave Airlie 1481356af0e1SRob Clark prop = drm_property_create(dev, 148243aba7ebSDave Airlie DRM_MODE_PROP_BLOB | 148343aba7ebSDave Airlie DRM_MODE_PROP_IMMUTABLE, 148443aba7ebSDave Airlie "PATH", 0); 1485356af0e1SRob Clark if (!prop) 1486356af0e1SRob Clark return -ENOMEM; 1487356af0e1SRob Clark dev->mode_config.path_property = prop; 148843aba7ebSDave Airlie 1489356af0e1SRob Clark prop = drm_property_create(dev, 14906f134d7bSDave Airlie DRM_MODE_PROP_BLOB | 14916f134d7bSDave Airlie DRM_MODE_PROP_IMMUTABLE, 14926f134d7bSDave Airlie "TILE", 0); 1493356af0e1SRob Clark if (!prop) 1494356af0e1SRob Clark return -ENOMEM; 1495356af0e1SRob Clark dev->mode_config.tile_property = prop; 14966f134d7bSDave Airlie 14976b4959f4SRob Clark prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 14989922ab5aSRob Clark "type", drm_plane_type_enum_list, 14999922ab5aSRob Clark ARRAY_SIZE(drm_plane_type_enum_list)); 15006b4959f4SRob Clark if (!prop) 15016b4959f4SRob Clark return -ENOMEM; 15026b4959f4SRob Clark dev->mode_config.plane_type_property = prop; 15036b4959f4SRob Clark 15046b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 15056b4959f4SRob Clark "SRC_X", 0, UINT_MAX); 15066b4959f4SRob Clark if (!prop) 15076b4959f4SRob Clark return -ENOMEM; 15086b4959f4SRob Clark dev->mode_config.prop_src_x = prop; 15096b4959f4SRob Clark 15106b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 15116b4959f4SRob Clark "SRC_Y", 0, UINT_MAX); 15126b4959f4SRob Clark if (!prop) 15136b4959f4SRob Clark return -ENOMEM; 15146b4959f4SRob Clark dev->mode_config.prop_src_y = prop; 15156b4959f4SRob Clark 15166b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 15176b4959f4SRob Clark "SRC_W", 0, UINT_MAX); 15186b4959f4SRob Clark if (!prop) 15196b4959f4SRob Clark return -ENOMEM; 15206b4959f4SRob Clark dev->mode_config.prop_src_w = prop; 15216b4959f4SRob Clark 15226b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 15236b4959f4SRob Clark "SRC_H", 0, UINT_MAX); 15246b4959f4SRob Clark if (!prop) 15256b4959f4SRob Clark return -ENOMEM; 15266b4959f4SRob Clark dev->mode_config.prop_src_h = prop; 15276b4959f4SRob Clark 15286b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 15296b4959f4SRob Clark "CRTC_X", INT_MIN, INT_MAX); 15306b4959f4SRob Clark if (!prop) 15316b4959f4SRob Clark return -ENOMEM; 15326b4959f4SRob Clark dev->mode_config.prop_crtc_x = prop; 15336b4959f4SRob Clark 15346b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 15356b4959f4SRob Clark "CRTC_Y", INT_MIN, INT_MAX); 15366b4959f4SRob Clark if (!prop) 15376b4959f4SRob Clark return -ENOMEM; 15386b4959f4SRob Clark dev->mode_config.prop_crtc_y = prop; 15396b4959f4SRob Clark 15406b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 15416b4959f4SRob Clark "CRTC_W", 0, INT_MAX); 15426b4959f4SRob Clark if (!prop) 15436b4959f4SRob Clark return -ENOMEM; 15446b4959f4SRob Clark dev->mode_config.prop_crtc_w = prop; 15456b4959f4SRob Clark 15466b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 15476b4959f4SRob Clark "CRTC_H", 0, INT_MAX); 15486b4959f4SRob Clark if (!prop) 15496b4959f4SRob Clark return -ENOMEM; 15506b4959f4SRob Clark dev->mode_config.prop_crtc_h = prop; 15516b4959f4SRob Clark 15526b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 15536b4959f4SRob Clark "FB_ID", DRM_MODE_OBJECT_FB); 15546b4959f4SRob Clark if (!prop) 15556b4959f4SRob Clark return -ENOMEM; 15566b4959f4SRob Clark dev->mode_config.prop_fb_id = prop; 15576b4959f4SRob Clark 15586b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 15596b4959f4SRob Clark "CRTC_ID", DRM_MODE_OBJECT_CRTC); 15606b4959f4SRob Clark if (!prop) 15616b4959f4SRob Clark return -ENOMEM; 15626b4959f4SRob Clark dev->mode_config.prop_crtc_id = prop; 15639922ab5aSRob Clark 1564eab3bbefSDaniel Vetter prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, 1565eab3bbefSDaniel Vetter "ACTIVE"); 1566eab3bbefSDaniel Vetter if (!prop) 1567eab3bbefSDaniel Vetter return -ENOMEM; 1568eab3bbefSDaniel Vetter dev->mode_config.prop_active = prop; 1569eab3bbefSDaniel Vetter 1570955f3c33SDaniel Stone prop = drm_property_create(dev, 1571955f3c33SDaniel Stone DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, 1572955f3c33SDaniel Stone "MODE_ID", 0); 1573955f3c33SDaniel Stone if (!prop) 1574955f3c33SDaniel Stone return -ENOMEM; 1575955f3c33SDaniel Stone dev->mode_config.prop_mode_id = prop; 1576955f3c33SDaniel Stone 15775488dc16SLionel Landwerlin prop = drm_property_create(dev, 15785488dc16SLionel Landwerlin DRM_MODE_PROP_BLOB, 15795488dc16SLionel Landwerlin "DEGAMMA_LUT", 0); 15805488dc16SLionel Landwerlin if (!prop) 15815488dc16SLionel Landwerlin return -ENOMEM; 15825488dc16SLionel Landwerlin dev->mode_config.degamma_lut_property = prop; 15835488dc16SLionel Landwerlin 15845488dc16SLionel Landwerlin prop = drm_property_create_range(dev, 15855488dc16SLionel Landwerlin DRM_MODE_PROP_IMMUTABLE, 15865488dc16SLionel Landwerlin "DEGAMMA_LUT_SIZE", 0, UINT_MAX); 15875488dc16SLionel Landwerlin if (!prop) 15885488dc16SLionel Landwerlin return -ENOMEM; 15895488dc16SLionel Landwerlin dev->mode_config.degamma_lut_size_property = prop; 15905488dc16SLionel Landwerlin 15915488dc16SLionel Landwerlin prop = drm_property_create(dev, 15925488dc16SLionel Landwerlin DRM_MODE_PROP_BLOB, 15935488dc16SLionel Landwerlin "CTM", 0); 15945488dc16SLionel Landwerlin if (!prop) 15955488dc16SLionel Landwerlin return -ENOMEM; 15965488dc16SLionel Landwerlin dev->mode_config.ctm_property = prop; 15975488dc16SLionel Landwerlin 15985488dc16SLionel Landwerlin prop = drm_property_create(dev, 15995488dc16SLionel Landwerlin DRM_MODE_PROP_BLOB, 16005488dc16SLionel Landwerlin "GAMMA_LUT", 0); 16015488dc16SLionel Landwerlin if (!prop) 16025488dc16SLionel Landwerlin return -ENOMEM; 16035488dc16SLionel Landwerlin dev->mode_config.gamma_lut_property = prop; 16045488dc16SLionel Landwerlin 16055488dc16SLionel Landwerlin prop = drm_property_create_range(dev, 16065488dc16SLionel Landwerlin DRM_MODE_PROP_IMMUTABLE, 16075488dc16SLionel Landwerlin "GAMMA_LUT_SIZE", 0, UINT_MAX); 16085488dc16SLionel Landwerlin if (!prop) 16095488dc16SLionel Landwerlin return -ENOMEM; 16105488dc16SLionel Landwerlin dev->mode_config.gamma_lut_size_property = prop; 16115488dc16SLionel Landwerlin 16129922ab5aSRob Clark return 0; 16139922ab5aSRob Clark } 16149922ab5aSRob Clark 1615f453ba04SDave Airlie /** 1616f453ba04SDave Airlie * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 1617f453ba04SDave Airlie * @dev: DRM device 1618f453ba04SDave Airlie * 1619f453ba04SDave Airlie * Called by a driver the first time a DVI-I connector is made. 1620f453ba04SDave Airlie */ 1621f453ba04SDave Airlie int drm_mode_create_dvi_i_properties(struct drm_device *dev) 1622f453ba04SDave Airlie { 1623f453ba04SDave Airlie struct drm_property *dvi_i_selector; 1624f453ba04SDave Airlie struct drm_property *dvi_i_subconnector; 1625f453ba04SDave Airlie 1626f453ba04SDave Airlie if (dev->mode_config.dvi_i_select_subconnector_property) 1627f453ba04SDave Airlie return 0; 1628f453ba04SDave Airlie 1629f453ba04SDave Airlie dvi_i_selector = 16304a67d391SSascha Hauer drm_property_create_enum(dev, 0, 1631f453ba04SDave Airlie "select subconnector", 16324a67d391SSascha Hauer drm_dvi_i_select_enum_list, 1633f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_select_enum_list)); 1634f453ba04SDave Airlie dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 1635f453ba04SDave Airlie 16364a67d391SSascha Hauer dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1637f453ba04SDave Airlie "subconnector", 16384a67d391SSascha Hauer drm_dvi_i_subconnector_enum_list, 1639f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 1640f453ba04SDave Airlie dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 1641f453ba04SDave Airlie 1642f453ba04SDave Airlie return 0; 1643f453ba04SDave Airlie } 1644f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 1645f453ba04SDave Airlie 1646f453ba04SDave Airlie /** 1647f453ba04SDave Airlie * drm_create_tv_properties - create TV specific connector properties 1648f453ba04SDave Airlie * @dev: DRM device 1649f453ba04SDave Airlie * @num_modes: number of different TV formats (modes) supported 1650f453ba04SDave Airlie * @modes: array of pointers to strings containing name of each format 1651f453ba04SDave Airlie * 1652f453ba04SDave Airlie * Called by a driver's TV initialization routine, this function creates 1653f453ba04SDave Airlie * the TV specific connector properties for a given device. Caller is 1654f453ba04SDave Airlie * responsible for allocating a list of format names and passing them to 1655f453ba04SDave Airlie * this routine. 1656f453ba04SDave Airlie */ 16572f763312SThierry Reding int drm_mode_create_tv_properties(struct drm_device *dev, 16582f763312SThierry Reding unsigned int num_modes, 1659b7c914b3SVille Syrjälä const char * const modes[]) 1660f453ba04SDave Airlie { 1661f453ba04SDave Airlie struct drm_property *tv_selector; 1662f453ba04SDave Airlie struct drm_property *tv_subconnector; 16632f763312SThierry Reding unsigned int i; 1664f453ba04SDave Airlie 1665f453ba04SDave Airlie if (dev->mode_config.tv_select_subconnector_property) 1666f453ba04SDave Airlie return 0; 1667f453ba04SDave Airlie 1668f453ba04SDave Airlie /* 1669f453ba04SDave Airlie * Basic connector properties 1670f453ba04SDave Airlie */ 16714a67d391SSascha Hauer tv_selector = drm_property_create_enum(dev, 0, 1672f453ba04SDave Airlie "select subconnector", 16734a67d391SSascha Hauer drm_tv_select_enum_list, 1674f453ba04SDave Airlie ARRAY_SIZE(drm_tv_select_enum_list)); 167548aa1e74SInsu Yun if (!tv_selector) 167648aa1e74SInsu Yun goto nomem; 167748aa1e74SInsu Yun 1678f453ba04SDave Airlie dev->mode_config.tv_select_subconnector_property = tv_selector; 1679f453ba04SDave Airlie 1680f453ba04SDave Airlie tv_subconnector = 16814a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 16824a67d391SSascha Hauer "subconnector", 16834a67d391SSascha Hauer drm_tv_subconnector_enum_list, 1684f453ba04SDave Airlie ARRAY_SIZE(drm_tv_subconnector_enum_list)); 168548aa1e74SInsu Yun if (!tv_subconnector) 168648aa1e74SInsu Yun goto nomem; 1687f453ba04SDave Airlie dev->mode_config.tv_subconnector_property = tv_subconnector; 1688f453ba04SDave Airlie 1689f453ba04SDave Airlie /* 1690f453ba04SDave Airlie * Other, TV specific properties: margins & TV modes. 1691f453ba04SDave Airlie */ 1692f453ba04SDave Airlie dev->mode_config.tv_left_margin_property = 1693d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "left margin", 0, 100); 169448aa1e74SInsu Yun if (!dev->mode_config.tv_left_margin_property) 169548aa1e74SInsu Yun goto nomem; 1696f453ba04SDave Airlie 1697f453ba04SDave Airlie dev->mode_config.tv_right_margin_property = 1698d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "right margin", 0, 100); 169948aa1e74SInsu Yun if (!dev->mode_config.tv_right_margin_property) 170048aa1e74SInsu Yun goto nomem; 1701f453ba04SDave Airlie 1702f453ba04SDave Airlie dev->mode_config.tv_top_margin_property = 1703d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "top margin", 0, 100); 170448aa1e74SInsu Yun if (!dev->mode_config.tv_top_margin_property) 170548aa1e74SInsu Yun goto nomem; 1706f453ba04SDave Airlie 1707f453ba04SDave Airlie dev->mode_config.tv_bottom_margin_property = 1708d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "bottom margin", 0, 100); 170948aa1e74SInsu Yun if (!dev->mode_config.tv_bottom_margin_property) 171048aa1e74SInsu Yun goto nomem; 1711f453ba04SDave Airlie 1712f453ba04SDave Airlie dev->mode_config.tv_mode_property = 1713f453ba04SDave Airlie drm_property_create(dev, DRM_MODE_PROP_ENUM, 1714f453ba04SDave Airlie "mode", num_modes); 171548aa1e74SInsu Yun if (!dev->mode_config.tv_mode_property) 171648aa1e74SInsu Yun goto nomem; 171748aa1e74SInsu Yun 1718f453ba04SDave Airlie for (i = 0; i < num_modes; i++) 1719f453ba04SDave Airlie drm_property_add_enum(dev->mode_config.tv_mode_property, i, 1720f453ba04SDave Airlie i, modes[i]); 1721f453ba04SDave Airlie 1722b6b7902eSFrancisco Jerez dev->mode_config.tv_brightness_property = 1723d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "brightness", 0, 100); 172448aa1e74SInsu Yun if (!dev->mode_config.tv_brightness_property) 172548aa1e74SInsu Yun goto nomem; 1726b6b7902eSFrancisco Jerez 1727b6b7902eSFrancisco Jerez dev->mode_config.tv_contrast_property = 1728d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "contrast", 0, 100); 172948aa1e74SInsu Yun if (!dev->mode_config.tv_contrast_property) 173048aa1e74SInsu Yun goto nomem; 1731b6b7902eSFrancisco Jerez 1732b6b7902eSFrancisco Jerez dev->mode_config.tv_flicker_reduction_property = 1733d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 173448aa1e74SInsu Yun if (!dev->mode_config.tv_flicker_reduction_property) 173548aa1e74SInsu Yun goto nomem; 1736b6b7902eSFrancisco Jerez 1737a75f0236SFrancisco Jerez dev->mode_config.tv_overscan_property = 1738d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "overscan", 0, 100); 173948aa1e74SInsu Yun if (!dev->mode_config.tv_overscan_property) 174048aa1e74SInsu Yun goto nomem; 1741a75f0236SFrancisco Jerez 1742a75f0236SFrancisco Jerez dev->mode_config.tv_saturation_property = 1743d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "saturation", 0, 100); 174448aa1e74SInsu Yun if (!dev->mode_config.tv_saturation_property) 174548aa1e74SInsu Yun goto nomem; 1746a75f0236SFrancisco Jerez 1747a75f0236SFrancisco Jerez dev->mode_config.tv_hue_property = 1748d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "hue", 0, 100); 174948aa1e74SInsu Yun if (!dev->mode_config.tv_hue_property) 175048aa1e74SInsu Yun goto nomem; 1751a75f0236SFrancisco Jerez 1752f453ba04SDave Airlie return 0; 175348aa1e74SInsu Yun nomem: 175448aa1e74SInsu Yun return -ENOMEM; 1755f453ba04SDave Airlie } 1756f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_tv_properties); 1757f453ba04SDave Airlie 1758f453ba04SDave Airlie /** 1759f453ba04SDave Airlie * drm_mode_create_scaling_mode_property - create scaling mode property 1760f453ba04SDave Airlie * @dev: DRM device 1761f453ba04SDave Airlie * 1762f453ba04SDave Airlie * Called by a driver the first time it's needed, must be attached to desired 1763f453ba04SDave Airlie * connectors. 1764f453ba04SDave Airlie */ 1765f453ba04SDave Airlie int drm_mode_create_scaling_mode_property(struct drm_device *dev) 1766f453ba04SDave Airlie { 1767f453ba04SDave Airlie struct drm_property *scaling_mode; 1768f453ba04SDave Airlie 1769f453ba04SDave Airlie if (dev->mode_config.scaling_mode_property) 1770f453ba04SDave Airlie return 0; 1771f453ba04SDave Airlie 1772f453ba04SDave Airlie scaling_mode = 17734a67d391SSascha Hauer drm_property_create_enum(dev, 0, "scaling mode", 17744a67d391SSascha Hauer drm_scaling_mode_enum_list, 1775f453ba04SDave Airlie ARRAY_SIZE(drm_scaling_mode_enum_list)); 1776f453ba04SDave Airlie 1777f453ba04SDave Airlie dev->mode_config.scaling_mode_property = scaling_mode; 1778f453ba04SDave Airlie 1779f453ba04SDave Airlie return 0; 1780f453ba04SDave Airlie } 1781f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 1782f453ba04SDave Airlie 1783f453ba04SDave Airlie /** 1784ff587e45SVandana Kannan * drm_mode_create_aspect_ratio_property - create aspect ratio property 1785ff587e45SVandana Kannan * @dev: DRM device 1786ff587e45SVandana Kannan * 1787ff587e45SVandana Kannan * Called by a driver the first time it's needed, must be attached to desired 1788ff587e45SVandana Kannan * connectors. 1789ff587e45SVandana Kannan * 1790ff587e45SVandana Kannan * Returns: 17911a498633SDaniel Vetter * Zero on success, negative errno on failure. 1792ff587e45SVandana Kannan */ 1793ff587e45SVandana Kannan int drm_mode_create_aspect_ratio_property(struct drm_device *dev) 1794ff587e45SVandana Kannan { 1795ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property) 1796ff587e45SVandana Kannan return 0; 1797ff587e45SVandana Kannan 1798ff587e45SVandana Kannan dev->mode_config.aspect_ratio_property = 1799ff587e45SVandana Kannan drm_property_create_enum(dev, 0, "aspect ratio", 1800ff587e45SVandana Kannan drm_aspect_ratio_enum_list, 1801ff587e45SVandana Kannan ARRAY_SIZE(drm_aspect_ratio_enum_list)); 1802ff587e45SVandana Kannan 1803ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property == NULL) 1804ff587e45SVandana Kannan return -ENOMEM; 1805ff587e45SVandana Kannan 1806ff587e45SVandana Kannan return 0; 1807ff587e45SVandana Kannan } 1808ff587e45SVandana Kannan EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); 1809ff587e45SVandana Kannan 1810ff587e45SVandana Kannan /** 1811884840aaSJakob Bornecrantz * drm_mode_create_dirty_property - create dirty property 1812884840aaSJakob Bornecrantz * @dev: DRM device 1813884840aaSJakob Bornecrantz * 1814884840aaSJakob Bornecrantz * Called by a driver the first time it's needed, must be attached to desired 1815884840aaSJakob Bornecrantz * connectors. 1816884840aaSJakob Bornecrantz */ 1817884840aaSJakob Bornecrantz int drm_mode_create_dirty_info_property(struct drm_device *dev) 1818884840aaSJakob Bornecrantz { 1819884840aaSJakob Bornecrantz struct drm_property *dirty_info; 1820884840aaSJakob Bornecrantz 1821884840aaSJakob Bornecrantz if (dev->mode_config.dirty_info_property) 1822884840aaSJakob Bornecrantz return 0; 1823884840aaSJakob Bornecrantz 1824884840aaSJakob Bornecrantz dirty_info = 18254a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1826884840aaSJakob Bornecrantz "dirty", 18274a67d391SSascha Hauer drm_dirty_info_enum_list, 1828884840aaSJakob Bornecrantz ARRAY_SIZE(drm_dirty_info_enum_list)); 1829884840aaSJakob Bornecrantz dev->mode_config.dirty_info_property = dirty_info; 1830884840aaSJakob Bornecrantz 1831884840aaSJakob Bornecrantz return 0; 1832884840aaSJakob Bornecrantz } 1833884840aaSJakob Bornecrantz EXPORT_SYMBOL(drm_mode_create_dirty_info_property); 1834884840aaSJakob Bornecrantz 18355bb2bbf5SDave Airlie /** 18365bb2bbf5SDave Airlie * drm_mode_create_suggested_offset_properties - create suggests offset properties 18375bb2bbf5SDave Airlie * @dev: DRM device 18385bb2bbf5SDave Airlie * 18395bb2bbf5SDave Airlie * Create the the suggested x/y offset property for connectors. 18405bb2bbf5SDave Airlie */ 18415bb2bbf5SDave Airlie int drm_mode_create_suggested_offset_properties(struct drm_device *dev) 18425bb2bbf5SDave Airlie { 18435bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) 18445bb2bbf5SDave Airlie return 0; 18455bb2bbf5SDave Airlie 18465bb2bbf5SDave Airlie dev->mode_config.suggested_x_property = 18475bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); 18485bb2bbf5SDave Airlie 18495bb2bbf5SDave Airlie dev->mode_config.suggested_y_property = 18505bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); 18515bb2bbf5SDave Airlie 18525bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property == NULL || 18535bb2bbf5SDave Airlie dev->mode_config.suggested_y_property == NULL) 18545bb2bbf5SDave Airlie return -ENOMEM; 18555bb2bbf5SDave Airlie return 0; 18565bb2bbf5SDave Airlie } 18575bb2bbf5SDave Airlie EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); 18585bb2bbf5SDave Airlie 1859f453ba04SDave Airlie /** 1860f453ba04SDave Airlie * drm_mode_getresources - get graphics configuration 1861065a50edSDaniel Vetter * @dev: drm device for the ioctl 1862065a50edSDaniel Vetter * @data: data pointer for the ioctl 1863065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1864f453ba04SDave Airlie * 1865f453ba04SDave Airlie * Construct a set of configuration description structures and return 1866f453ba04SDave Airlie * them to the user, including CRTC, connector and framebuffer configuration. 1867f453ba04SDave Airlie * 1868f453ba04SDave Airlie * Called by the user via ioctl. 1869f453ba04SDave Airlie * 1870c8e32cc1SDaniel Vetter * Returns: 18711a498633SDaniel Vetter * Zero on success, negative errno on failure. 1872f453ba04SDave Airlie */ 1873f453ba04SDave Airlie int drm_mode_getresources(struct drm_device *dev, void *data, 1874f453ba04SDave Airlie struct drm_file *file_priv) 1875f453ba04SDave Airlie { 1876f453ba04SDave Airlie struct drm_mode_card_res *card_res = data; 1877f453ba04SDave Airlie struct list_head *lh; 1878f453ba04SDave Airlie struct drm_framebuffer *fb; 1879f453ba04SDave Airlie struct drm_connector *connector; 1880f453ba04SDave Airlie struct drm_crtc *crtc; 1881f453ba04SDave Airlie struct drm_encoder *encoder; 1882f453ba04SDave Airlie int ret = 0; 1883f453ba04SDave Airlie int connector_count = 0; 1884f453ba04SDave Airlie int crtc_count = 0; 1885f453ba04SDave Airlie int fb_count = 0; 1886f453ba04SDave Airlie int encoder_count = 0; 18879c7060f7SDaniel Vetter int copied = 0; 1888f453ba04SDave Airlie uint32_t __user *fb_id; 1889f453ba04SDave Airlie uint32_t __user *crtc_id; 1890f453ba04SDave Airlie uint32_t __user *connector_id; 1891f453ba04SDave Airlie uint32_t __user *encoder_id; 1892f453ba04SDave Airlie 1893fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1894fb3b06c8SDave Airlie return -EINVAL; 1895fb3b06c8SDave Airlie 1896f453ba04SDave Airlie 18974b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 1898f453ba04SDave Airlie /* 1899f453ba04SDave Airlie * For the non-control nodes we need to limit the list of resources 1900f453ba04SDave Airlie * by IDs in the group list for this node 1901f453ba04SDave Airlie */ 1902f453ba04SDave Airlie list_for_each(lh, &file_priv->fbs) 1903f453ba04SDave Airlie fb_count++; 1904f453ba04SDave Airlie 19054b096ac1SDaniel Vetter /* handle this in 4 parts */ 19064b096ac1SDaniel Vetter /* FBs */ 19074b096ac1SDaniel Vetter if (card_res->count_fbs >= fb_count) { 19084b096ac1SDaniel Vetter copied = 0; 19094b096ac1SDaniel Vetter fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; 19104b096ac1SDaniel Vetter list_for_each_entry(fb, &file_priv->fbs, filp_head) { 19114b096ac1SDaniel Vetter if (put_user(fb->base.id, fb_id + copied)) { 19124b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 19134b096ac1SDaniel Vetter return -EFAULT; 19144b096ac1SDaniel Vetter } 19154b096ac1SDaniel Vetter copied++; 19164b096ac1SDaniel Vetter } 19174b096ac1SDaniel Vetter } 19184b096ac1SDaniel Vetter card_res->count_fbs = fb_count; 19194b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 19204b096ac1SDaniel Vetter 1921fcf93f69SDaniel Vetter /* mode_config.mutex protects the connector list against e.g. DP MST 1922fcf93f69SDaniel Vetter * connector hot-adding. CRTC/Plane lists are invariant. */ 1923fcf93f69SDaniel Vetter mutex_lock(&dev->mode_config.mutex); 1924e4f62546SDaniel Vetter drm_for_each_crtc(crtc, dev) 1925f453ba04SDave Airlie crtc_count++; 1926f453ba04SDave Airlie 19279a9f5ce8SDaniel Vetter drm_for_each_connector(connector, dev) 1928f453ba04SDave Airlie connector_count++; 1929f453ba04SDave Airlie 1930e4f62546SDaniel Vetter drm_for_each_encoder(encoder, dev) 1931f453ba04SDave Airlie encoder_count++; 1932f453ba04SDave Airlie 1933f453ba04SDave Airlie card_res->max_height = dev->mode_config.max_height; 1934f453ba04SDave Airlie card_res->min_height = dev->mode_config.min_height; 1935f453ba04SDave Airlie card_res->max_width = dev->mode_config.max_width; 1936f453ba04SDave Airlie card_res->min_width = dev->mode_config.min_width; 1937f453ba04SDave Airlie 1938f453ba04SDave Airlie /* CRTCs */ 1939f453ba04SDave Airlie if (card_res->count_crtcs >= crtc_count) { 1940f453ba04SDave Airlie copied = 0; 1941f453ba04SDave Airlie crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; 19426295d607SDaniel Vetter drm_for_each_crtc(crtc, dev) { 1943fa3ab4c2SVille Syrjälä DRM_DEBUG_KMS("[CRTC:%d:%s]\n", 1944fa3ab4c2SVille Syrjälä crtc->base.id, crtc->name); 1945f453ba04SDave Airlie if (put_user(crtc->base.id, crtc_id + copied)) { 1946f453ba04SDave Airlie ret = -EFAULT; 1947f453ba04SDave Airlie goto out; 1948f453ba04SDave Airlie } 1949f453ba04SDave Airlie copied++; 1950f453ba04SDave Airlie } 1951f453ba04SDave Airlie } 1952f453ba04SDave Airlie card_res->count_crtcs = crtc_count; 1953f453ba04SDave Airlie 1954f453ba04SDave Airlie /* Encoders */ 1955f453ba04SDave Airlie if (card_res->count_encoders >= encoder_count) { 1956f453ba04SDave Airlie copied = 0; 1957f453ba04SDave Airlie encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; 19586295d607SDaniel Vetter drm_for_each_encoder(encoder, dev) { 19599440106bSJerome Glisse DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, 196083a8cfd3SJani Nikula encoder->name); 1961f453ba04SDave Airlie if (put_user(encoder->base.id, encoder_id + 1962f453ba04SDave Airlie copied)) { 1963f453ba04SDave Airlie ret = -EFAULT; 1964f453ba04SDave Airlie goto out; 1965f453ba04SDave Airlie } 1966f453ba04SDave Airlie copied++; 1967f453ba04SDave Airlie } 1968f453ba04SDave Airlie } 1969f453ba04SDave Airlie card_res->count_encoders = encoder_count; 1970f453ba04SDave Airlie 1971f453ba04SDave Airlie /* Connectors */ 1972f453ba04SDave Airlie if (card_res->count_connectors >= connector_count) { 1973f453ba04SDave Airlie copied = 0; 1974f453ba04SDave Airlie connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; 19756295d607SDaniel Vetter drm_for_each_connector(connector, dev) { 19769440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 19779440106bSJerome Glisse connector->base.id, 197825933820SJani Nikula connector->name); 1979f453ba04SDave Airlie if (put_user(connector->base.id, 1980f453ba04SDave Airlie connector_id + copied)) { 1981f453ba04SDave Airlie ret = -EFAULT; 1982f453ba04SDave Airlie goto out; 1983f453ba04SDave Airlie } 1984f453ba04SDave Airlie copied++; 1985f453ba04SDave Airlie } 1986f453ba04SDave Airlie } 1987f453ba04SDave Airlie card_res->count_connectors = connector_count; 1988f453ba04SDave Airlie 19899440106bSJerome Glisse DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, 1990f453ba04SDave Airlie card_res->count_connectors, card_res->count_encoders); 1991f453ba04SDave Airlie 1992f453ba04SDave Airlie out: 1993fcf93f69SDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 1994f453ba04SDave Airlie return ret; 1995f453ba04SDave Airlie } 1996f453ba04SDave Airlie 1997f453ba04SDave Airlie /** 1998f453ba04SDave Airlie * drm_mode_getcrtc - get CRTC configuration 1999065a50edSDaniel Vetter * @dev: drm device for the ioctl 2000065a50edSDaniel Vetter * @data: data pointer for the ioctl 2001065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2002f453ba04SDave Airlie * 2003f453ba04SDave Airlie * Construct a CRTC configuration structure to return to the user. 2004f453ba04SDave Airlie * 2005f453ba04SDave Airlie * Called by the user via ioctl. 2006f453ba04SDave Airlie * 2007c8e32cc1SDaniel Vetter * Returns: 20081a498633SDaniel Vetter * Zero on success, negative errno on failure. 2009f453ba04SDave Airlie */ 2010f453ba04SDave Airlie int drm_mode_getcrtc(struct drm_device *dev, 2011f453ba04SDave Airlie void *data, struct drm_file *file_priv) 2012f453ba04SDave Airlie { 2013f453ba04SDave Airlie struct drm_mode_crtc *crtc_resp = data; 2014f453ba04SDave Airlie struct drm_crtc *crtc; 2015f453ba04SDave Airlie 2016fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2017fb3b06c8SDave Airlie return -EINVAL; 2018fb3b06c8SDave Airlie 2019a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_resp->crtc_id); 2020fcf93f69SDaniel Vetter if (!crtc) 2021fcf93f69SDaniel Vetter return -ENOENT; 2022f453ba04SDave Airlie 2023fcf93f69SDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 2024f453ba04SDave Airlie crtc_resp->gamma_size = crtc->gamma_size; 2025f4510a27SMatt Roper if (crtc->primary->fb) 2026f4510a27SMatt Roper crtc_resp->fb_id = crtc->primary->fb->base.id; 2027f453ba04SDave Airlie else 2028f453ba04SDave Airlie crtc_resp->fb_id = 0; 2029f453ba04SDave Airlie 203031c946e8SDaniel Vetter if (crtc->state) { 203131c946e8SDaniel Vetter crtc_resp->x = crtc->primary->state->src_x >> 16; 203231c946e8SDaniel Vetter crtc_resp->y = crtc->primary->state->src_y >> 16; 203331c946e8SDaniel Vetter if (crtc->state->enable) { 2034934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); 203531c946e8SDaniel Vetter crtc_resp->mode_valid = 1; 2036f453ba04SDave Airlie 203731c946e8SDaniel Vetter } else { 203831c946e8SDaniel Vetter crtc_resp->mode_valid = 0; 203931c946e8SDaniel Vetter } 204031c946e8SDaniel Vetter } else { 204131c946e8SDaniel Vetter crtc_resp->x = crtc->x; 204231c946e8SDaniel Vetter crtc_resp->y = crtc->y; 204331c946e8SDaniel Vetter if (crtc->enabled) { 2044934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); 2045f453ba04SDave Airlie crtc_resp->mode_valid = 1; 2046f453ba04SDave Airlie 2047f453ba04SDave Airlie } else { 2048f453ba04SDave Airlie crtc_resp->mode_valid = 0; 2049f453ba04SDave Airlie } 205031c946e8SDaniel Vetter } 2051fcf93f69SDaniel Vetter drm_modeset_unlock_crtc(crtc); 2052f453ba04SDave Airlie 2053baf698b0SDaniel Vetter return 0; 2054f453ba04SDave Airlie } 2055f453ba04SDave Airlie 205661d8e328SDamien Lespiau static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, 205761d8e328SDamien Lespiau const struct drm_file *file_priv) 205861d8e328SDamien Lespiau { 205961d8e328SDamien Lespiau /* 206061d8e328SDamien Lespiau * If user-space hasn't configured the driver to expose the stereo 3D 206161d8e328SDamien Lespiau * modes, don't expose them. 206261d8e328SDamien Lespiau */ 206361d8e328SDamien Lespiau if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) 206461d8e328SDamien Lespiau return false; 206561d8e328SDamien Lespiau 206661d8e328SDamien Lespiau return true; 206761d8e328SDamien Lespiau } 206861d8e328SDamien Lespiau 2069abd69c55SDaniel Vetter static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) 2070abd69c55SDaniel Vetter { 2071abd69c55SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 2072abd69c55SDaniel Vetter * protected by modeset locks, so check those first. */ 2073abd69c55SDaniel Vetter if (connector->state) 2074abd69c55SDaniel Vetter return connector->state->best_encoder; 2075abd69c55SDaniel Vetter return connector->encoder; 2076abd69c55SDaniel Vetter } 2077abd69c55SDaniel Vetter 207895cbf110SRob Clark /* helper for getconnector and getproperties ioctls */ 207988a48e29SRob Clark static int get_properties(struct drm_mode_object *obj, bool atomic, 208095cbf110SRob Clark uint32_t __user *prop_ptr, uint64_t __user *prop_values, 208195cbf110SRob Clark uint32_t *arg_count_props) 208295cbf110SRob Clark { 208388a48e29SRob Clark int props_count; 208488a48e29SRob Clark int i, ret, copied; 208588a48e29SRob Clark 208688a48e29SRob Clark props_count = obj->properties->count; 208788a48e29SRob Clark if (!atomic) 208888a48e29SRob Clark props_count -= obj->properties->atomic_count; 208995cbf110SRob Clark 209095cbf110SRob Clark if ((*arg_count_props >= props_count) && props_count) { 209188a48e29SRob Clark for (i = 0, copied = 0; copied < props_count; i++) { 209295cbf110SRob Clark struct drm_property *prop = obj->properties->properties[i]; 209395cbf110SRob Clark uint64_t val; 209495cbf110SRob Clark 209588a48e29SRob Clark if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) 209688a48e29SRob Clark continue; 209788a48e29SRob Clark 209895cbf110SRob Clark ret = drm_object_property_get_value(obj, prop, &val); 209995cbf110SRob Clark if (ret) 210095cbf110SRob Clark return ret; 210195cbf110SRob Clark 210295cbf110SRob Clark if (put_user(prop->base.id, prop_ptr + copied)) 210395cbf110SRob Clark return -EFAULT; 210495cbf110SRob Clark 210595cbf110SRob Clark if (put_user(val, prop_values + copied)) 210695cbf110SRob Clark return -EFAULT; 210795cbf110SRob Clark 210895cbf110SRob Clark copied++; 210995cbf110SRob Clark } 211095cbf110SRob Clark } 211195cbf110SRob Clark *arg_count_props = props_count; 211295cbf110SRob Clark 211395cbf110SRob Clark return 0; 211495cbf110SRob Clark } 211595cbf110SRob Clark 2116f453ba04SDave Airlie /** 2117f453ba04SDave Airlie * drm_mode_getconnector - get connector configuration 2118065a50edSDaniel Vetter * @dev: drm device for the ioctl 2119065a50edSDaniel Vetter * @data: data pointer for the ioctl 2120065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2121f453ba04SDave Airlie * 2122f453ba04SDave Airlie * Construct a connector configuration structure to return to the user. 2123f453ba04SDave Airlie * 2124f453ba04SDave Airlie * Called by the user via ioctl. 2125f453ba04SDave Airlie * 2126c8e32cc1SDaniel Vetter * Returns: 21271a498633SDaniel Vetter * Zero on success, negative errno on failure. 2128f453ba04SDave Airlie */ 2129f453ba04SDave Airlie int drm_mode_getconnector(struct drm_device *dev, void *data, 2130f453ba04SDave Airlie struct drm_file *file_priv) 2131f453ba04SDave Airlie { 2132f453ba04SDave Airlie struct drm_mode_get_connector *out_resp = data; 2133f453ba04SDave Airlie struct drm_connector *connector; 2134abd69c55SDaniel Vetter struct drm_encoder *encoder; 2135f453ba04SDave Airlie struct drm_display_mode *mode; 2136f453ba04SDave Airlie int mode_count = 0; 2137f453ba04SDave Airlie int encoders_count = 0; 2138f453ba04SDave Airlie int ret = 0; 2139f453ba04SDave Airlie int copied = 0; 2140f453ba04SDave Airlie int i; 2141f453ba04SDave Airlie struct drm_mode_modeinfo u_mode; 2142f453ba04SDave Airlie struct drm_mode_modeinfo __user *mode_ptr; 2143f453ba04SDave Airlie uint32_t __user *encoder_ptr; 2144f453ba04SDave Airlie 2145fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2146fb3b06c8SDave Airlie return -EINVAL; 2147fb3b06c8SDave Airlie 2148f453ba04SDave Airlie memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); 2149f453ba04SDave Airlie 21509440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); 2151f453ba04SDave Airlie 21527b24056bSDaniel Vetter mutex_lock(&dev->mode_config.mutex); 2153f453ba04SDave Airlie 2154a2b34e22SRob Clark connector = drm_connector_find(dev, out_resp->connector_id); 2155a2b34e22SRob Clark if (!connector) { 2156f27657f2SVille Syrjälä ret = -ENOENT; 215704bdf441STommi Rantala goto out_unlock; 2158f453ba04SDave Airlie } 2159f453ba04SDave Airlie 216001073b08SThierry Reding for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) 216101073b08SThierry Reding if (connector->encoder_ids[i] != 0) 2162f453ba04SDave Airlie encoders_count++; 2163f453ba04SDave Airlie 2164f453ba04SDave Airlie if (out_resp->count_modes == 0) { 2165f453ba04SDave Airlie connector->funcs->fill_modes(connector, 2166f453ba04SDave Airlie dev->mode_config.max_width, 2167f453ba04SDave Airlie dev->mode_config.max_height); 2168f453ba04SDave Airlie } 2169f453ba04SDave Airlie 2170f453ba04SDave Airlie /* delayed so we get modes regardless of pre-fill_modes state */ 2171f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) 217261d8e328SDamien Lespiau if (drm_mode_expose_to_userspace(mode, file_priv)) 2173f453ba04SDave Airlie mode_count++; 2174f453ba04SDave Airlie 2175f453ba04SDave Airlie out_resp->connector_id = connector->base.id; 2176f453ba04SDave Airlie out_resp->connector_type = connector->connector_type; 2177f453ba04SDave Airlie out_resp->connector_type_id = connector->connector_type_id; 2178f453ba04SDave Airlie out_resp->mm_width = connector->display_info.width_mm; 2179f453ba04SDave Airlie out_resp->mm_height = connector->display_info.height_mm; 2180f453ba04SDave Airlie out_resp->subpixel = connector->display_info.subpixel_order; 2181f453ba04SDave Airlie out_resp->connection = connector->status; 21822caa80e7SDaniel Vetter 21832caa80e7SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2184abd69c55SDaniel Vetter encoder = drm_connector_get_encoder(connector); 2185abd69c55SDaniel Vetter if (encoder) 2186abd69c55SDaniel Vetter out_resp->encoder_id = encoder->base.id; 2187f453ba04SDave Airlie else 2188f453ba04SDave Airlie out_resp->encoder_id = 0; 2189f453ba04SDave Airlie 2190f453ba04SDave Airlie /* 2191f453ba04SDave Airlie * This ioctl is called twice, once to determine how much space is 2192f453ba04SDave Airlie * needed, and the 2nd time to fill it. 2193f453ba04SDave Airlie */ 2194f453ba04SDave Airlie if ((out_resp->count_modes >= mode_count) && mode_count) { 2195f453ba04SDave Airlie copied = 0; 219681f6c7f8SVille Syrjälä mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 2197f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) { 219861d8e328SDamien Lespiau if (!drm_mode_expose_to_userspace(mode, file_priv)) 219961d8e328SDamien Lespiau continue; 220061d8e328SDamien Lespiau 2201934a8a89SDaniel Stone drm_mode_convert_to_umode(&u_mode, mode); 2202f453ba04SDave Airlie if (copy_to_user(mode_ptr + copied, 2203f453ba04SDave Airlie &u_mode, sizeof(u_mode))) { 2204f453ba04SDave Airlie ret = -EFAULT; 2205f453ba04SDave Airlie goto out; 2206f453ba04SDave Airlie } 2207f453ba04SDave Airlie copied++; 2208f453ba04SDave Airlie } 2209f453ba04SDave Airlie } 2210f453ba04SDave Airlie out_resp->count_modes = mode_count; 2211f453ba04SDave Airlie 221288a48e29SRob Clark ret = get_properties(&connector->base, file_priv->atomic, 221395cbf110SRob Clark (uint32_t __user *)(unsigned long)(out_resp->props_ptr), 221495cbf110SRob Clark (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), 221595cbf110SRob Clark &out_resp->count_props); 221622b8b13bSRob Clark if (ret) 2217f453ba04SDave Airlie goto out; 2218f453ba04SDave Airlie 2219f453ba04SDave Airlie if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 2220f453ba04SDave Airlie copied = 0; 222181f6c7f8SVille Syrjälä encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 2222f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 2223f453ba04SDave Airlie if (connector->encoder_ids[i] != 0) { 2224f453ba04SDave Airlie if (put_user(connector->encoder_ids[i], 2225f453ba04SDave Airlie encoder_ptr + copied)) { 2226f453ba04SDave Airlie ret = -EFAULT; 2227f453ba04SDave Airlie goto out; 2228f453ba04SDave Airlie } 2229f453ba04SDave Airlie copied++; 2230f453ba04SDave Airlie } 2231f453ba04SDave Airlie } 2232f453ba04SDave Airlie } 2233f453ba04SDave Airlie out_resp->count_encoders = encoders_count; 2234f453ba04SDave Airlie 2235f453ba04SDave Airlie out: 2236ccfc0865SRob Clark drm_modeset_unlock(&dev->mode_config.connection_mutex); 223704bdf441STommi Rantala 223804bdf441STommi Rantala out_unlock: 22397b24056bSDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 22407b24056bSDaniel Vetter 2241f453ba04SDave Airlie return ret; 2242f453ba04SDave Airlie } 2243f453ba04SDave Airlie 2244abd69c55SDaniel Vetter static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) 2245abd69c55SDaniel Vetter { 2246abd69c55SDaniel Vetter struct drm_connector *connector; 2247abd69c55SDaniel Vetter struct drm_device *dev = encoder->dev; 2248abd69c55SDaniel Vetter bool uses_atomic = false; 2249abd69c55SDaniel Vetter 2250abd69c55SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 2251abd69c55SDaniel Vetter * protected by modeset locks, so check those first. */ 22526295d607SDaniel Vetter drm_for_each_connector(connector, dev) { 2253abd69c55SDaniel Vetter if (!connector->state) 2254abd69c55SDaniel Vetter continue; 2255abd69c55SDaniel Vetter 2256abd69c55SDaniel Vetter uses_atomic = true; 2257abd69c55SDaniel Vetter 2258abd69c55SDaniel Vetter if (connector->state->best_encoder != encoder) 2259abd69c55SDaniel Vetter continue; 2260abd69c55SDaniel Vetter 2261abd69c55SDaniel Vetter return connector->state->crtc; 2262abd69c55SDaniel Vetter } 2263abd69c55SDaniel Vetter 2264abd69c55SDaniel Vetter /* Don't return stale data (e.g. pending async disable). */ 2265abd69c55SDaniel Vetter if (uses_atomic) 2266abd69c55SDaniel Vetter return NULL; 2267abd69c55SDaniel Vetter 2268abd69c55SDaniel Vetter return encoder->crtc; 2269abd69c55SDaniel Vetter } 2270abd69c55SDaniel Vetter 2271c8e32cc1SDaniel Vetter /** 2272c8e32cc1SDaniel Vetter * drm_mode_getencoder - get encoder configuration 2273c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2274c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2275c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2276c8e32cc1SDaniel Vetter * 2277c8e32cc1SDaniel Vetter * Construct a encoder configuration structure to return to the user. 2278c8e32cc1SDaniel Vetter * 2279c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2280c8e32cc1SDaniel Vetter * 2281c8e32cc1SDaniel Vetter * Returns: 22821a498633SDaniel Vetter * Zero on success, negative errno on failure. 2283c8e32cc1SDaniel Vetter */ 2284f453ba04SDave Airlie int drm_mode_getencoder(struct drm_device *dev, void *data, 2285f453ba04SDave Airlie struct drm_file *file_priv) 2286f453ba04SDave Airlie { 2287f453ba04SDave Airlie struct drm_mode_get_encoder *enc_resp = data; 2288f453ba04SDave Airlie struct drm_encoder *encoder; 2289abd69c55SDaniel Vetter struct drm_crtc *crtc; 2290f453ba04SDave Airlie 2291fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2292fb3b06c8SDave Airlie return -EINVAL; 2293fb3b06c8SDave Airlie 2294a2b34e22SRob Clark encoder = drm_encoder_find(dev, enc_resp->encoder_id); 2295fcf93f69SDaniel Vetter if (!encoder) 2296fcf93f69SDaniel Vetter return -ENOENT; 2297f453ba04SDave Airlie 2298fcf93f69SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2299abd69c55SDaniel Vetter crtc = drm_encoder_get_crtc(encoder); 2300abd69c55SDaniel Vetter if (crtc) 2301abd69c55SDaniel Vetter enc_resp->crtc_id = crtc->base.id; 2302f453ba04SDave Airlie else 2303f453ba04SDave Airlie enc_resp->crtc_id = 0; 2304fcf93f69SDaniel Vetter drm_modeset_unlock(&dev->mode_config.connection_mutex); 2305fcf93f69SDaniel Vetter 2306f453ba04SDave Airlie enc_resp->encoder_type = encoder->encoder_type; 2307f453ba04SDave Airlie enc_resp->encoder_id = encoder->base.id; 2308f453ba04SDave Airlie enc_resp->possible_crtcs = encoder->possible_crtcs; 2309f453ba04SDave Airlie enc_resp->possible_clones = encoder->possible_clones; 2310f453ba04SDave Airlie 2311baf698b0SDaniel Vetter return 0; 2312f453ba04SDave Airlie } 2313f453ba04SDave Airlie 2314f453ba04SDave Airlie /** 2315c8e32cc1SDaniel Vetter * drm_mode_getplane_res - enumerate all plane resources 23168cf5c917SJesse Barnes * @dev: DRM device 23178cf5c917SJesse Barnes * @data: ioctl data 23188cf5c917SJesse Barnes * @file_priv: DRM file info 23198cf5c917SJesse Barnes * 2320c8e32cc1SDaniel Vetter * Construct a list of plane ids to return to the user. 2321c8e32cc1SDaniel Vetter * 2322c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2323c8e32cc1SDaniel Vetter * 2324c8e32cc1SDaniel Vetter * Returns: 23251a498633SDaniel Vetter * Zero on success, negative errno on failure. 23268cf5c917SJesse Barnes */ 23278cf5c917SJesse Barnes int drm_mode_getplane_res(struct drm_device *dev, void *data, 23288cf5c917SJesse Barnes struct drm_file *file_priv) 23298cf5c917SJesse Barnes { 23308cf5c917SJesse Barnes struct drm_mode_get_plane_res *plane_resp = data; 23318cf5c917SJesse Barnes struct drm_mode_config *config; 23328cf5c917SJesse Barnes struct drm_plane *plane; 23338cf5c917SJesse Barnes uint32_t __user *plane_ptr; 2334fcf93f69SDaniel Vetter int copied = 0; 2335681e7ec7SMatt Roper unsigned num_planes; 23368cf5c917SJesse Barnes 23378cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 23388cf5c917SJesse Barnes return -EINVAL; 23398cf5c917SJesse Barnes 23408cf5c917SJesse Barnes config = &dev->mode_config; 23418cf5c917SJesse Barnes 2342681e7ec7SMatt Roper if (file_priv->universal_planes) 2343681e7ec7SMatt Roper num_planes = config->num_total_plane; 2344681e7ec7SMatt Roper else 2345681e7ec7SMatt Roper num_planes = config->num_overlay_plane; 2346681e7ec7SMatt Roper 23478cf5c917SJesse Barnes /* 23488cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 23498cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 23508cf5c917SJesse Barnes */ 2351681e7ec7SMatt Roper if (num_planes && 2352681e7ec7SMatt Roper (plane_resp->count_planes >= num_planes)) { 235381f6c7f8SVille Syrjälä plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; 23548cf5c917SJesse Barnes 2355fcf93f69SDaniel Vetter /* Plane lists are invariant, no locking needed. */ 2356e4f62546SDaniel Vetter drm_for_each_plane(plane, dev) { 2357681e7ec7SMatt Roper /* 2358681e7ec7SMatt Roper * Unless userspace set the 'universal planes' 2359681e7ec7SMatt Roper * capability bit, only advertise overlays. 2360681e7ec7SMatt Roper */ 2361681e7ec7SMatt Roper if (plane->type != DRM_PLANE_TYPE_OVERLAY && 2362681e7ec7SMatt Roper !file_priv->universal_planes) 2363e27dde3eSMatt Roper continue; 2364e27dde3eSMatt Roper 2365fcf93f69SDaniel Vetter if (put_user(plane->base.id, plane_ptr + copied)) 2366fcf93f69SDaniel Vetter return -EFAULT; 23678cf5c917SJesse Barnes copied++; 23688cf5c917SJesse Barnes } 23698cf5c917SJesse Barnes } 2370681e7ec7SMatt Roper plane_resp->count_planes = num_planes; 23718cf5c917SJesse Barnes 2372fcf93f69SDaniel Vetter return 0; 23738cf5c917SJesse Barnes } 23748cf5c917SJesse Barnes 23758cf5c917SJesse Barnes /** 2376c8e32cc1SDaniel Vetter * drm_mode_getplane - get plane configuration 23778cf5c917SJesse Barnes * @dev: DRM device 23788cf5c917SJesse Barnes * @data: ioctl data 23798cf5c917SJesse Barnes * @file_priv: DRM file info 23808cf5c917SJesse Barnes * 2381c8e32cc1SDaniel Vetter * Construct a plane configuration structure to return to the user. 2382c8e32cc1SDaniel Vetter * 2383c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2384c8e32cc1SDaniel Vetter * 2385c8e32cc1SDaniel Vetter * Returns: 23861a498633SDaniel Vetter * Zero on success, negative errno on failure. 23878cf5c917SJesse Barnes */ 23888cf5c917SJesse Barnes int drm_mode_getplane(struct drm_device *dev, void *data, 23898cf5c917SJesse Barnes struct drm_file *file_priv) 23908cf5c917SJesse Barnes { 23918cf5c917SJesse Barnes struct drm_mode_get_plane *plane_resp = data; 23928cf5c917SJesse Barnes struct drm_plane *plane; 23938cf5c917SJesse Barnes uint32_t __user *format_ptr; 23948cf5c917SJesse Barnes 23958cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 23968cf5c917SJesse Barnes return -EINVAL; 23978cf5c917SJesse Barnes 2398a2b34e22SRob Clark plane = drm_plane_find(dev, plane_resp->plane_id); 2399fcf93f69SDaniel Vetter if (!plane) 2400fcf93f69SDaniel Vetter return -ENOENT; 24018cf5c917SJesse Barnes 2402fcf93f69SDaniel Vetter drm_modeset_lock(&plane->mutex, NULL); 24038cf5c917SJesse Barnes if (plane->crtc) 24048cf5c917SJesse Barnes plane_resp->crtc_id = plane->crtc->base.id; 24058cf5c917SJesse Barnes else 24068cf5c917SJesse Barnes plane_resp->crtc_id = 0; 24078cf5c917SJesse Barnes 24088cf5c917SJesse Barnes if (plane->fb) 24098cf5c917SJesse Barnes plane_resp->fb_id = plane->fb->base.id; 24108cf5c917SJesse Barnes else 24118cf5c917SJesse Barnes plane_resp->fb_id = 0; 2412fcf93f69SDaniel Vetter drm_modeset_unlock(&plane->mutex); 24138cf5c917SJesse Barnes 24148cf5c917SJesse Barnes plane_resp->plane_id = plane->base.id; 24158cf5c917SJesse Barnes plane_resp->possible_crtcs = plane->possible_crtcs; 2416778ad903SVille Syrjälä plane_resp->gamma_size = 0; 24178cf5c917SJesse Barnes 24188cf5c917SJesse Barnes /* 24198cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 24208cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 24218cf5c917SJesse Barnes */ 24228cf5c917SJesse Barnes if (plane->format_count && 24238cf5c917SJesse Barnes (plane_resp->count_format_types >= plane->format_count)) { 242481f6c7f8SVille Syrjälä format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; 24258cf5c917SJesse Barnes if (copy_to_user(format_ptr, 24268cf5c917SJesse Barnes plane->format_types, 24278cf5c917SJesse Barnes sizeof(uint32_t) * plane->format_count)) { 2428fcf93f69SDaniel Vetter return -EFAULT; 24298cf5c917SJesse Barnes } 24308cf5c917SJesse Barnes } 24318cf5c917SJesse Barnes plane_resp->count_format_types = plane->format_count; 24328cf5c917SJesse Barnes 2433baf698b0SDaniel Vetter return 0; 24348cf5c917SJesse Barnes } 24358cf5c917SJesse Barnes 2436ead8610dSLaurent Pinchart /** 2437ead8610dSLaurent Pinchart * drm_plane_check_pixel_format - Check if the plane supports the pixel format 2438ead8610dSLaurent Pinchart * @plane: plane to check for format support 2439ead8610dSLaurent Pinchart * @format: the pixel format 2440ead8610dSLaurent Pinchart * 2441ead8610dSLaurent Pinchart * Returns: 2442ead8610dSLaurent Pinchart * Zero of @plane has @format in its list of supported pixel formats, -EINVAL 2443ead8610dSLaurent Pinchart * otherwise. 2444ead8610dSLaurent Pinchart */ 2445ead8610dSLaurent Pinchart int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) 2446ead8610dSLaurent Pinchart { 2447ead8610dSLaurent Pinchart unsigned int i; 2448ead8610dSLaurent Pinchart 2449ead8610dSLaurent Pinchart for (i = 0; i < plane->format_count; i++) { 2450ead8610dSLaurent Pinchart if (format == plane->format_types[i]) 2451ead8610dSLaurent Pinchart return 0; 2452ead8610dSLaurent Pinchart } 2453ead8610dSLaurent Pinchart 2454ead8610dSLaurent Pinchart return -EINVAL; 2455ead8610dSLaurent Pinchart } 2456ead8610dSLaurent Pinchart 2457ce8d9eccSVille Syrjälä static int check_src_coords(uint32_t src_x, uint32_t src_y, 2458ce8d9eccSVille Syrjälä uint32_t src_w, uint32_t src_h, 2459ce8d9eccSVille Syrjälä const struct drm_framebuffer *fb) 2460ce8d9eccSVille Syrjälä { 2461ce8d9eccSVille Syrjälä unsigned int fb_width, fb_height; 2462ce8d9eccSVille Syrjälä 2463ce8d9eccSVille Syrjälä fb_width = fb->width << 16; 2464ce8d9eccSVille Syrjälä fb_height = fb->height << 16; 2465ce8d9eccSVille Syrjälä 2466ce8d9eccSVille Syrjälä /* Make sure source coordinates are inside the fb. */ 2467ce8d9eccSVille Syrjälä if (src_w > fb_width || 2468ce8d9eccSVille Syrjälä src_x > fb_width - src_w || 2469ce8d9eccSVille Syrjälä src_h > fb_height || 2470ce8d9eccSVille Syrjälä src_y > fb_height - src_h) { 2471ce8d9eccSVille Syrjälä DRM_DEBUG_KMS("Invalid source coordinates " 2472ce8d9eccSVille Syrjälä "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", 2473ce8d9eccSVille Syrjälä src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, 2474ce8d9eccSVille Syrjälä src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, 2475ce8d9eccSVille Syrjälä src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, 2476ce8d9eccSVille Syrjälä src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); 2477ce8d9eccSVille Syrjälä return -ENOSPC; 2478ce8d9eccSVille Syrjälä } 2479ce8d9eccSVille Syrjälä 2480ce8d9eccSVille Syrjälä return 0; 2481ce8d9eccSVille Syrjälä } 2482ce8d9eccSVille Syrjälä 2483b36552b3SMatt Roper /* 2484b36552b3SMatt Roper * setplane_internal - setplane handler for internal callers 24858cf5c917SJesse Barnes * 2486b36552b3SMatt Roper * Note that we assume an extra reference has already been taken on fb. If the 2487b36552b3SMatt Roper * update fails, this reference will be dropped before return; if it succeeds, 2488b36552b3SMatt Roper * the previous framebuffer (if any) will be unreferenced instead. 2489c8e32cc1SDaniel Vetter * 2490b36552b3SMatt Roper * src_{x,y,w,h} are provided in 16.16 fixed point format 24918cf5c917SJesse Barnes */ 2492f2b50c11SDaniel Vetter static int __setplane_internal(struct drm_plane *plane, 249317cfd91fSChris Wilson struct drm_crtc *crtc, 2494b36552b3SMatt Roper struct drm_framebuffer *fb, 2495b36552b3SMatt Roper int32_t crtc_x, int32_t crtc_y, 2496b36552b3SMatt Roper uint32_t crtc_w, uint32_t crtc_h, 2497b36552b3SMatt Roper /* src_{x,y,w,h} values are 16.16 fixed point */ 2498b36552b3SMatt Roper uint32_t src_x, uint32_t src_y, 2499b36552b3SMatt Roper uint32_t src_w, uint32_t src_h) 25008cf5c917SJesse Barnes { 25018cf5c917SJesse Barnes int ret = 0; 25028cf5c917SJesse Barnes 25038cf5c917SJesse Barnes /* No fb means shut it down */ 2504b36552b3SMatt Roper if (!fb) { 25053d30a59bSDaniel Vetter plane->old_fb = plane->fb; 2506731cce48SDaniel Vetter ret = plane->funcs->disable_plane(plane); 2507731cce48SDaniel Vetter if (!ret) { 2508e5e3b44cSVille Syrjälä plane->crtc = NULL; 2509e5e3b44cSVille Syrjälä plane->fb = NULL; 2510731cce48SDaniel Vetter } else { 25113d30a59bSDaniel Vetter plane->old_fb = NULL; 2512731cce48SDaniel Vetter } 25138cf5c917SJesse Barnes goto out; 25148cf5c917SJesse Barnes } 25158cf5c917SJesse Barnes 25167f994f3fSMatt Roper /* Check whether this plane is usable on this CRTC */ 25177f994f3fSMatt Roper if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { 25187f994f3fSMatt Roper DRM_DEBUG_KMS("Invalid crtc for plane\n"); 25197f994f3fSMatt Roper ret = -EINVAL; 25207f994f3fSMatt Roper goto out; 25217f994f3fSMatt Roper } 25227f994f3fSMatt Roper 252362443be6SVille Syrjälä /* Check whether this plane supports the fb pixel format. */ 2524ead8610dSLaurent Pinchart ret = drm_plane_check_pixel_format(plane, fb->pixel_format); 2525ead8610dSLaurent Pinchart if (ret) { 25266ba6d03eSVille Syrjälä DRM_DEBUG_KMS("Invalid pixel format %s\n", 25276ba6d03eSVille Syrjälä drm_get_format_name(fb->pixel_format)); 252862443be6SVille Syrjälä goto out; 252962443be6SVille Syrjälä } 253062443be6SVille Syrjälä 25313968be94SMatt Roper /* Give drivers some help against integer overflows */ 25323968be94SMatt Roper if (crtc_w > INT_MAX || 25333968be94SMatt Roper crtc_x > INT_MAX - (int32_t) crtc_w || 25343968be94SMatt Roper crtc_h > INT_MAX || 25353968be94SMatt Roper crtc_y > INT_MAX - (int32_t) crtc_h) { 25363968be94SMatt Roper DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", 25373968be94SMatt Roper crtc_w, crtc_h, crtc_x, crtc_y); 2538c390eed0SVille Syrjälä ret = -ERANGE; 253942ef8789SVille Syrjälä goto out; 254042ef8789SVille Syrjälä } 254142ef8789SVille Syrjälä 2542ce8d9eccSVille Syrjälä ret = check_src_coords(src_x, src_y, src_w, src_h, fb); 2543ce8d9eccSVille Syrjälä if (ret) 2544f453ba04SDave Airlie goto out; 2545f453ba04SDave Airlie 25463d30a59bSDaniel Vetter plane->old_fb = plane->fb; 2547f453ba04SDave Airlie ret = plane->funcs->update_plane(plane, crtc, fb, 2548b36552b3SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 2549b36552b3SMatt Roper src_x, src_y, src_w, src_h); 2550f453ba04SDave Airlie if (!ret) { 2551f453ba04SDave Airlie plane->crtc = crtc; 2552f453ba04SDave Airlie plane->fb = fb; 255335f8badcSDaniel Vetter fb = NULL; 25540fe27f06SDaniel Vetter } else { 25553d30a59bSDaniel Vetter plane->old_fb = NULL; 2556f453ba04SDave Airlie } 2557f453ba04SDave Airlie 2558f453ba04SDave Airlie out: 25596c2a7532SDaniel Vetter if (fb) 25606c2a7532SDaniel Vetter drm_framebuffer_unreference(fb); 25613d30a59bSDaniel Vetter if (plane->old_fb) 25623d30a59bSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 25633d30a59bSDaniel Vetter plane->old_fb = NULL; 2564f453ba04SDave Airlie 2565f453ba04SDave Airlie return ret; 2566f2b50c11SDaniel Vetter } 2567b36552b3SMatt Roper 2568f2b50c11SDaniel Vetter static int setplane_internal(struct drm_plane *plane, 2569f2b50c11SDaniel Vetter struct drm_crtc *crtc, 2570f2b50c11SDaniel Vetter struct drm_framebuffer *fb, 2571f2b50c11SDaniel Vetter int32_t crtc_x, int32_t crtc_y, 2572f2b50c11SDaniel Vetter uint32_t crtc_w, uint32_t crtc_h, 2573f2b50c11SDaniel Vetter /* src_{x,y,w,h} values are 16.16 fixed point */ 2574f2b50c11SDaniel Vetter uint32_t src_x, uint32_t src_y, 2575f2b50c11SDaniel Vetter uint32_t src_w, uint32_t src_h) 2576f2b50c11SDaniel Vetter { 2577f2b50c11SDaniel Vetter int ret; 2578f2b50c11SDaniel Vetter 2579f2b50c11SDaniel Vetter drm_modeset_lock_all(plane->dev); 2580f2b50c11SDaniel Vetter ret = __setplane_internal(plane, crtc, fb, 2581f2b50c11SDaniel Vetter crtc_x, crtc_y, crtc_w, crtc_h, 2582f2b50c11SDaniel Vetter src_x, src_y, src_w, src_h); 2583f2b50c11SDaniel Vetter drm_modeset_unlock_all(plane->dev); 2584f2b50c11SDaniel Vetter 2585f2b50c11SDaniel Vetter return ret; 2586b36552b3SMatt Roper } 2587b36552b3SMatt Roper 2588b36552b3SMatt Roper /** 2589b36552b3SMatt Roper * drm_mode_setplane - configure a plane's configuration 2590b36552b3SMatt Roper * @dev: DRM device 2591b36552b3SMatt Roper * @data: ioctl data* 2592b36552b3SMatt Roper * @file_priv: DRM file info 2593b36552b3SMatt Roper * 2594b36552b3SMatt Roper * Set plane configuration, including placement, fb, scaling, and other factors. 2595b36552b3SMatt Roper * Or pass a NULL fb to disable (planes may be disabled without providing a 2596b36552b3SMatt Roper * valid crtc). 2597b36552b3SMatt Roper * 2598b36552b3SMatt Roper * Returns: 25991a498633SDaniel Vetter * Zero on success, negative errno on failure. 2600b36552b3SMatt Roper */ 2601b36552b3SMatt Roper int drm_mode_setplane(struct drm_device *dev, void *data, 2602b36552b3SMatt Roper struct drm_file *file_priv) 2603b36552b3SMatt Roper { 2604b36552b3SMatt Roper struct drm_mode_set_plane *plane_req = data; 2605b36552b3SMatt Roper struct drm_plane *plane; 2606b36552b3SMatt Roper struct drm_crtc *crtc = NULL; 2607b36552b3SMatt Roper struct drm_framebuffer *fb = NULL; 2608b36552b3SMatt Roper 2609b36552b3SMatt Roper if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2610b36552b3SMatt Roper return -EINVAL; 2611b36552b3SMatt Roper 2612b36552b3SMatt Roper /* 2613b36552b3SMatt Roper * First, find the plane, crtc, and fb objects. If not available, 2614b36552b3SMatt Roper * we don't bother to call the driver. 2615b36552b3SMatt Roper */ 2616933f622fSRob Clark plane = drm_plane_find(dev, plane_req->plane_id); 2617933f622fSRob Clark if (!plane) { 2618b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown plane ID %d\n", 2619b36552b3SMatt Roper plane_req->plane_id); 2620b36552b3SMatt Roper return -ENOENT; 2621b36552b3SMatt Roper } 2622b36552b3SMatt Roper 2623b36552b3SMatt Roper if (plane_req->fb_id) { 2624b36552b3SMatt Roper fb = drm_framebuffer_lookup(dev, plane_req->fb_id); 2625b36552b3SMatt Roper if (!fb) { 2626b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", 2627b36552b3SMatt Roper plane_req->fb_id); 2628b36552b3SMatt Roper return -ENOENT; 2629b36552b3SMatt Roper } 2630b36552b3SMatt Roper 2631933f622fSRob Clark crtc = drm_crtc_find(dev, plane_req->crtc_id); 2632933f622fSRob Clark if (!crtc) { 2633b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown crtc ID %d\n", 2634b36552b3SMatt Roper plane_req->crtc_id); 2635b36552b3SMatt Roper return -ENOENT; 2636b36552b3SMatt Roper } 2637b36552b3SMatt Roper } 2638b36552b3SMatt Roper 2639161d0dc1SMatt Roper /* 2640161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 2641161d0dc1SMatt Roper * framebuffer depending on success. 2642161d0dc1SMatt Roper */ 264317cfd91fSChris Wilson return setplane_internal(plane, crtc, fb, 2644b36552b3SMatt Roper plane_req->crtc_x, plane_req->crtc_y, 2645b36552b3SMatt Roper plane_req->crtc_w, plane_req->crtc_h, 2646b36552b3SMatt Roper plane_req->src_x, plane_req->src_y, 2647b36552b3SMatt Roper plane_req->src_w, plane_req->src_h); 2648f453ba04SDave Airlie } 2649f453ba04SDave Airlie 2650f453ba04SDave Airlie /** 26512d13b679SDaniel Vetter * drm_mode_set_config_internal - helper to call ->set_config 26522d13b679SDaniel Vetter * @set: modeset config to set 26532d13b679SDaniel Vetter * 26542d13b679SDaniel Vetter * This is a little helper to wrap internal calls to the ->set_config driver 26552d13b679SDaniel Vetter * interface. The only thing it adds is correct refcounting dance. 2656c8e32cc1SDaniel Vetter * 2657c8e32cc1SDaniel Vetter * Returns: 26581a498633SDaniel Vetter * Zero on success, negative errno on failure. 26592d13b679SDaniel Vetter */ 26602d13b679SDaniel Vetter int drm_mode_set_config_internal(struct drm_mode_set *set) 26612d13b679SDaniel Vetter { 26622d13b679SDaniel Vetter struct drm_crtc *crtc = set->crtc; 26635cef29aaSDaniel Vetter struct drm_framebuffer *fb; 26645cef29aaSDaniel Vetter struct drm_crtc *tmp; 2665b0d12325SDaniel Vetter int ret; 26662d13b679SDaniel Vetter 26675cef29aaSDaniel Vetter /* 26685cef29aaSDaniel Vetter * NOTE: ->set_config can also disable other crtcs (if we steal all 26695cef29aaSDaniel Vetter * connectors from it), hence we need to refcount the fbs across all 26705cef29aaSDaniel Vetter * crtcs. Atomic modeset will have saner semantics ... 26715cef29aaSDaniel Vetter */ 2672e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) 26733d30a59bSDaniel Vetter tmp->primary->old_fb = tmp->primary->fb; 26745cef29aaSDaniel Vetter 2675b0d12325SDaniel Vetter fb = set->fb; 2676b0d12325SDaniel Vetter 2677b0d12325SDaniel Vetter ret = crtc->funcs->set_config(set); 2678b0d12325SDaniel Vetter if (ret == 0) { 2679e13161afSMatt Roper crtc->primary->crtc = crtc; 26800fe27f06SDaniel Vetter crtc->primary->fb = fb; 26815cef29aaSDaniel Vetter } 2682cc85e121SDaniel Vetter 2683e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) { 2684f4510a27SMatt Roper if (tmp->primary->fb) 2685f4510a27SMatt Roper drm_framebuffer_reference(tmp->primary->fb); 26863d30a59bSDaniel Vetter if (tmp->primary->old_fb) 26873d30a59bSDaniel Vetter drm_framebuffer_unreference(tmp->primary->old_fb); 26883d30a59bSDaniel Vetter tmp->primary->old_fb = NULL; 2689b0d12325SDaniel Vetter } 2690b0d12325SDaniel Vetter 2691b0d12325SDaniel Vetter return ret; 26922d13b679SDaniel Vetter } 26932d13b679SDaniel Vetter EXPORT_SYMBOL(drm_mode_set_config_internal); 26942d13b679SDaniel Vetter 2695af93629dSMatt Roper /** 2696ecb7e16bSGustavo Padovan * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode 2697ecb7e16bSGustavo Padovan * @mode: mode to query 2698ecb7e16bSGustavo Padovan * @hdisplay: hdisplay value to fill in 2699ecb7e16bSGustavo Padovan * @vdisplay: vdisplay value to fill in 2700ecb7e16bSGustavo Padovan * 2701ecb7e16bSGustavo Padovan * The vdisplay value will be doubled if the specified mode is a stereo mode of 2702ecb7e16bSGustavo Padovan * the appropriate layout. 2703ecb7e16bSGustavo Padovan */ 2704ecb7e16bSGustavo Padovan void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, 2705ecb7e16bSGustavo Padovan int *hdisplay, int *vdisplay) 2706ecb7e16bSGustavo Padovan { 2707ecb7e16bSGustavo Padovan struct drm_display_mode adjusted; 2708ecb7e16bSGustavo Padovan 2709ecb7e16bSGustavo Padovan drm_mode_copy(&adjusted, mode); 2710ecb7e16bSGustavo Padovan drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); 2711ecb7e16bSGustavo Padovan *hdisplay = adjusted.crtc_hdisplay; 2712ecb7e16bSGustavo Padovan *vdisplay = adjusted.crtc_vdisplay; 2713ecb7e16bSGustavo Padovan } 2714ecb7e16bSGustavo Padovan EXPORT_SYMBOL(drm_crtc_get_hv_timing); 2715ecb7e16bSGustavo Padovan 2716ecb7e16bSGustavo Padovan /** 2717af93629dSMatt Roper * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the 2718af93629dSMatt Roper * CRTC viewport 2719af93629dSMatt Roper * @crtc: CRTC that framebuffer will be displayed on 2720af93629dSMatt Roper * @x: x panning 2721af93629dSMatt Roper * @y: y panning 2722af93629dSMatt Roper * @mode: mode that framebuffer will be displayed under 2723af93629dSMatt Roper * @fb: framebuffer to check size of 2724c11e9283SDamien Lespiau */ 2725af93629dSMatt Roper int drm_crtc_check_viewport(const struct drm_crtc *crtc, 2726c11e9283SDamien Lespiau int x, int y, 2727c11e9283SDamien Lespiau const struct drm_display_mode *mode, 2728c11e9283SDamien Lespiau const struct drm_framebuffer *fb) 2729c11e9283SDamien Lespiau 2730c11e9283SDamien Lespiau { 2731c11e9283SDamien Lespiau int hdisplay, vdisplay; 2732c11e9283SDamien Lespiau 2733ecb7e16bSGustavo Padovan drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); 2734a0c1bbb0SDamien Lespiau 273533e0be63SVille Syrjälä if (crtc->state && 273633e0be63SVille Syrjälä crtc->primary->state->rotation & (BIT(DRM_ROTATE_90) | 273733e0be63SVille Syrjälä BIT(DRM_ROTATE_270))) 2738c11e9283SDamien Lespiau swap(hdisplay, vdisplay); 2739c11e9283SDamien Lespiau 2740ce8d9eccSVille Syrjälä return check_src_coords(x << 16, y << 16, 2741ce8d9eccSVille Syrjälä hdisplay << 16, vdisplay << 16, fb); 2742c11e9283SDamien Lespiau } 2743af93629dSMatt Roper EXPORT_SYMBOL(drm_crtc_check_viewport); 2744c11e9283SDamien Lespiau 27452d13b679SDaniel Vetter /** 2746f453ba04SDave Airlie * drm_mode_setcrtc - set CRTC configuration 2747065a50edSDaniel Vetter * @dev: drm device for the ioctl 2748065a50edSDaniel Vetter * @data: data pointer for the ioctl 2749065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2750f453ba04SDave Airlie * 2751f453ba04SDave Airlie * Build a new CRTC configuration based on user request. 2752f453ba04SDave Airlie * 2753f453ba04SDave Airlie * Called by the user via ioctl. 2754f453ba04SDave Airlie * 2755c8e32cc1SDaniel Vetter * Returns: 27561a498633SDaniel Vetter * Zero on success, negative errno on failure. 2757f453ba04SDave Airlie */ 2758f453ba04SDave Airlie int drm_mode_setcrtc(struct drm_device *dev, void *data, 2759f453ba04SDave Airlie struct drm_file *file_priv) 2760f453ba04SDave Airlie { 2761f453ba04SDave Airlie struct drm_mode_config *config = &dev->mode_config; 2762f453ba04SDave Airlie struct drm_mode_crtc *crtc_req = data; 27636653cc8dSVille Syrjälä struct drm_crtc *crtc; 2764f453ba04SDave Airlie struct drm_connector **connector_set = NULL, *connector; 2765f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 2766f453ba04SDave Airlie struct drm_display_mode *mode = NULL; 2767f453ba04SDave Airlie struct drm_mode_set set; 2768f453ba04SDave Airlie uint32_t __user *set_connectors_ptr; 27694a1b0714SLaurent Pinchart int ret; 2770f453ba04SDave Airlie int i; 2771f453ba04SDave Airlie 2772fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2773fb3b06c8SDave Airlie return -EINVAL; 2774fb3b06c8SDave Airlie 277501447e9fSZhao Junwang /* 277601447e9fSZhao Junwang * Universal plane src offsets are only 16.16, prevent havoc for 277701447e9fSZhao Junwang * drivers using universal plane code internally. 277801447e9fSZhao Junwang */ 277901447e9fSZhao Junwang if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) 27801d97e915SVille Syrjälä return -ERANGE; 27811d97e915SVille Syrjälä 278284849903SDaniel Vetter drm_modeset_lock_all(dev); 2783a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_req->crtc_id); 2784a2b34e22SRob Clark if (!crtc) { 278558367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 2786f27657f2SVille Syrjälä ret = -ENOENT; 2787f453ba04SDave Airlie goto out; 2788f453ba04SDave Airlie } 2789fa3ab4c2SVille Syrjälä DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); 2790f453ba04SDave Airlie 2791f453ba04SDave Airlie if (crtc_req->mode_valid) { 2792f453ba04SDave Airlie /* If we have a mode we need a framebuffer. */ 2793f453ba04SDave Airlie /* If we pass -1, set the mode with the currently bound fb */ 2794f453ba04SDave Airlie if (crtc_req->fb_id == -1) { 2795f4510a27SMatt Roper if (!crtc->primary->fb) { 27966653cc8dSVille Syrjälä DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 27976653cc8dSVille Syrjälä ret = -EINVAL; 27986653cc8dSVille Syrjälä goto out; 27996653cc8dSVille Syrjälä } 2800f4510a27SMatt Roper fb = crtc->primary->fb; 2801b0d12325SDaniel Vetter /* Make refcounting symmetric with the lookup path. */ 2802b0d12325SDaniel Vetter drm_framebuffer_reference(fb); 2803f453ba04SDave Airlie } else { 2804786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); 2805786b99edSDaniel Vetter if (!fb) { 280658367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown FB ID%d\n", 280758367ed6SZhao Yakui crtc_req->fb_id); 280837c4e705SVille Syrjälä ret = -ENOENT; 2809f453ba04SDave Airlie goto out; 2810f453ba04SDave Airlie } 2811f453ba04SDave Airlie } 2812f453ba04SDave Airlie 2813f453ba04SDave Airlie mode = drm_mode_create(dev); 2814ee34ab5bSVille Syrjälä if (!mode) { 2815ee34ab5bSVille Syrjälä ret = -ENOMEM; 2816ee34ab5bSVille Syrjälä goto out; 2817ee34ab5bSVille Syrjälä } 2818ee34ab5bSVille Syrjälä 2819934a8a89SDaniel Stone ret = drm_mode_convert_umode(mode, &crtc_req->mode); 282090367bf6SVille Syrjälä if (ret) { 282190367bf6SVille Syrjälä DRM_DEBUG_KMS("Invalid mode\n"); 282290367bf6SVille Syrjälä goto out; 282390367bf6SVille Syrjälä } 282490367bf6SVille Syrjälä 2825f453ba04SDave Airlie drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 28265f61bb42SVille Syrjälä 28277eb5f302SLaurent Pinchart /* 28287eb5f302SLaurent Pinchart * Check whether the primary plane supports the fb pixel format. 28297eb5f302SLaurent Pinchart * Drivers not implementing the universal planes API use a 28307eb5f302SLaurent Pinchart * default formats list provided by the DRM core which doesn't 28317eb5f302SLaurent Pinchart * match real hardware capabilities. Skip the check in that 28327eb5f302SLaurent Pinchart * case. 28337eb5f302SLaurent Pinchart */ 28347eb5f302SLaurent Pinchart if (!crtc->primary->format_default) { 28357eb5f302SLaurent Pinchart ret = drm_plane_check_pixel_format(crtc->primary, 28367eb5f302SLaurent Pinchart fb->pixel_format); 28377eb5f302SLaurent Pinchart if (ret) { 28387eb5f302SLaurent Pinchart DRM_DEBUG_KMS("Invalid pixel format %s\n", 28397eb5f302SLaurent Pinchart drm_get_format_name(fb->pixel_format)); 28407eb5f302SLaurent Pinchart goto out; 28417eb5f302SLaurent Pinchart } 28427eb5f302SLaurent Pinchart } 28437eb5f302SLaurent Pinchart 2844c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, 2845c11e9283SDamien Lespiau mode, fb); 2846c11e9283SDamien Lespiau if (ret) 28475f61bb42SVille Syrjälä goto out; 2848c11e9283SDamien Lespiau 2849f453ba04SDave Airlie } 2850f453ba04SDave Airlie 2851f453ba04SDave Airlie if (crtc_req->count_connectors == 0 && mode) { 285258367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 2853f453ba04SDave Airlie ret = -EINVAL; 2854f453ba04SDave Airlie goto out; 2855f453ba04SDave Airlie } 2856f453ba04SDave Airlie 28577781de74SJakob Bornecrantz if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 285858367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 2859f453ba04SDave Airlie crtc_req->count_connectors); 2860f453ba04SDave Airlie ret = -EINVAL; 2861f453ba04SDave Airlie goto out; 2862f453ba04SDave Airlie } 2863f453ba04SDave Airlie 2864f453ba04SDave Airlie if (crtc_req->count_connectors > 0) { 2865f453ba04SDave Airlie u32 out_id; 2866f453ba04SDave Airlie 2867f453ba04SDave Airlie /* Avoid unbounded kernel memory allocation */ 2868f453ba04SDave Airlie if (crtc_req->count_connectors > config->num_connector) { 2869f453ba04SDave Airlie ret = -EINVAL; 2870f453ba04SDave Airlie goto out; 2871f453ba04SDave Airlie } 2872f453ba04SDave Airlie 28732f6c5389SThierry Reding connector_set = kmalloc_array(crtc_req->count_connectors, 2874f453ba04SDave Airlie sizeof(struct drm_connector *), 2875f453ba04SDave Airlie GFP_KERNEL); 2876f453ba04SDave Airlie if (!connector_set) { 2877f453ba04SDave Airlie ret = -ENOMEM; 2878f453ba04SDave Airlie goto out; 2879f453ba04SDave Airlie } 2880f453ba04SDave Airlie 2881f453ba04SDave Airlie for (i = 0; i < crtc_req->count_connectors; i++) { 288281f6c7f8SVille Syrjälä set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 2883f453ba04SDave Airlie if (get_user(out_id, &set_connectors_ptr[i])) { 2884f453ba04SDave Airlie ret = -EFAULT; 2885f453ba04SDave Airlie goto out; 2886f453ba04SDave Airlie } 2887f453ba04SDave Airlie 2888a2b34e22SRob Clark connector = drm_connector_find(dev, out_id); 2889a2b34e22SRob Clark if (!connector) { 289058367ed6SZhao Yakui DRM_DEBUG_KMS("Connector id %d unknown\n", 289158367ed6SZhao Yakui out_id); 2892f27657f2SVille Syrjälä ret = -ENOENT; 2893f453ba04SDave Airlie goto out; 2894f453ba04SDave Airlie } 28959440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 28969440106bSJerome Glisse connector->base.id, 289725933820SJani Nikula connector->name); 2898f453ba04SDave Airlie 2899f453ba04SDave Airlie connector_set[i] = connector; 2900f453ba04SDave Airlie } 2901f453ba04SDave Airlie } 2902f453ba04SDave Airlie 2903f453ba04SDave Airlie set.crtc = crtc; 2904f453ba04SDave Airlie set.x = crtc_req->x; 2905f453ba04SDave Airlie set.y = crtc_req->y; 2906f453ba04SDave Airlie set.mode = mode; 2907f453ba04SDave Airlie set.connectors = connector_set; 2908f453ba04SDave Airlie set.num_connectors = crtc_req->count_connectors; 2909f453ba04SDave Airlie set.fb = fb; 29102d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 2911f453ba04SDave Airlie 2912f453ba04SDave Airlie out: 2913b0d12325SDaniel Vetter if (fb) 2914b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 2915b0d12325SDaniel Vetter 2916f453ba04SDave Airlie kfree(connector_set); 2917ee34ab5bSVille Syrjälä drm_mode_destroy(dev, mode); 291884849903SDaniel Vetter drm_modeset_unlock_all(dev); 2919f453ba04SDave Airlie return ret; 2920f453ba04SDave Airlie } 2921f453ba04SDave Airlie 2922161d0dc1SMatt Roper /** 2923161d0dc1SMatt Roper * drm_mode_cursor_universal - translate legacy cursor ioctl call into a 2924161d0dc1SMatt Roper * universal plane handler call 2925161d0dc1SMatt Roper * @crtc: crtc to update cursor for 2926161d0dc1SMatt Roper * @req: data pointer for the ioctl 2927161d0dc1SMatt Roper * @file_priv: drm file for the ioctl call 2928161d0dc1SMatt Roper * 2929161d0dc1SMatt Roper * Legacy cursor ioctl's work directly with driver buffer handles. To 2930161d0dc1SMatt Roper * translate legacy ioctl calls into universal plane handler calls, we need to 2931161d0dc1SMatt Roper * wrap the native buffer handle in a drm_framebuffer. 2932161d0dc1SMatt Roper * 2933161d0dc1SMatt Roper * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB 2934161d0dc1SMatt Roper * buffer with a pitch of 4*width; the universal plane interface should be used 2935161d0dc1SMatt Roper * directly in cases where the hardware can support other buffer settings and 2936161d0dc1SMatt Roper * userspace wants to make use of these capabilities. 2937161d0dc1SMatt Roper * 2938161d0dc1SMatt Roper * Returns: 29391a498633SDaniel Vetter * Zero on success, negative errno on failure. 2940161d0dc1SMatt Roper */ 2941161d0dc1SMatt Roper static int drm_mode_cursor_universal(struct drm_crtc *crtc, 2942161d0dc1SMatt Roper struct drm_mode_cursor2 *req, 2943161d0dc1SMatt Roper struct drm_file *file_priv) 2944161d0dc1SMatt Roper { 2945161d0dc1SMatt Roper struct drm_device *dev = crtc->dev; 2946161d0dc1SMatt Roper struct drm_framebuffer *fb = NULL; 2947161d0dc1SMatt Roper struct drm_mode_fb_cmd2 fbreq = { 2948161d0dc1SMatt Roper .width = req->width, 2949161d0dc1SMatt Roper .height = req->height, 2950161d0dc1SMatt Roper .pixel_format = DRM_FORMAT_ARGB8888, 2951161d0dc1SMatt Roper .pitches = { req->width * 4 }, 2952161d0dc1SMatt Roper .handles = { req->handle }, 2953161d0dc1SMatt Roper }; 2954161d0dc1SMatt Roper int32_t crtc_x, crtc_y; 2955161d0dc1SMatt Roper uint32_t crtc_w = 0, crtc_h = 0; 2956161d0dc1SMatt Roper uint32_t src_w = 0, src_h = 0; 2957161d0dc1SMatt Roper int ret = 0; 2958161d0dc1SMatt Roper 2959161d0dc1SMatt Roper BUG_ON(!crtc->cursor); 2960f2b50c11SDaniel Vetter WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); 2961161d0dc1SMatt Roper 2962161d0dc1SMatt Roper /* 2963161d0dc1SMatt Roper * Obtain fb we'll be using (either new or existing) and take an extra 2964161d0dc1SMatt Roper * reference to it if fb != null. setplane will take care of dropping 2965161d0dc1SMatt Roper * the reference if the plane update fails. 2966161d0dc1SMatt Roper */ 2967161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_BO) { 2968161d0dc1SMatt Roper if (req->handle) { 29699a6f5130SChris Wilson fb = internal_framebuffer_create(dev, &fbreq, file_priv); 2970161d0dc1SMatt Roper if (IS_ERR(fb)) { 2971161d0dc1SMatt Roper DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); 2972161d0dc1SMatt Roper return PTR_ERR(fb); 2973161d0dc1SMatt Roper } 2974161d0dc1SMatt Roper } else { 2975161d0dc1SMatt Roper fb = NULL; 2976161d0dc1SMatt Roper } 2977161d0dc1SMatt Roper } else { 2978161d0dc1SMatt Roper fb = crtc->cursor->fb; 2979161d0dc1SMatt Roper if (fb) 2980161d0dc1SMatt Roper drm_framebuffer_reference(fb); 2981161d0dc1SMatt Roper } 2982161d0dc1SMatt Roper 2983161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_MOVE) { 2984161d0dc1SMatt Roper crtc_x = req->x; 2985161d0dc1SMatt Roper crtc_y = req->y; 2986161d0dc1SMatt Roper } else { 2987161d0dc1SMatt Roper crtc_x = crtc->cursor_x; 2988161d0dc1SMatt Roper crtc_y = crtc->cursor_y; 2989161d0dc1SMatt Roper } 2990161d0dc1SMatt Roper 2991161d0dc1SMatt Roper if (fb) { 2992161d0dc1SMatt Roper crtc_w = fb->width; 2993161d0dc1SMatt Roper crtc_h = fb->height; 2994161d0dc1SMatt Roper src_w = fb->width << 16; 2995161d0dc1SMatt Roper src_h = fb->height << 16; 2996161d0dc1SMatt Roper } 2997161d0dc1SMatt Roper 2998161d0dc1SMatt Roper /* 2999161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 3000161d0dc1SMatt Roper * framebuffer depending on success. 3001161d0dc1SMatt Roper */ 3002f2b50c11SDaniel Vetter ret = __setplane_internal(crtc->cursor, crtc, fb, 3003161d0dc1SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 3004161d0dc1SMatt Roper 0, 0, src_w, src_h); 3005161d0dc1SMatt Roper 3006161d0dc1SMatt Roper /* Update successful; save new cursor position, if necessary */ 3007161d0dc1SMatt Roper if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { 3008161d0dc1SMatt Roper crtc->cursor_x = req->x; 3009161d0dc1SMatt Roper crtc->cursor_y = req->y; 3010161d0dc1SMatt Roper } 3011161d0dc1SMatt Roper 3012161d0dc1SMatt Roper return ret; 3013161d0dc1SMatt Roper } 3014161d0dc1SMatt Roper 30154c813d4dSDave Airlie static int drm_mode_cursor_common(struct drm_device *dev, 30164c813d4dSDave Airlie struct drm_mode_cursor2 *req, 30174c813d4dSDave Airlie struct drm_file *file_priv) 3018f453ba04SDave Airlie { 3019f453ba04SDave Airlie struct drm_crtc *crtc; 3020f453ba04SDave Airlie int ret = 0; 3021f453ba04SDave Airlie 3022fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3023fb3b06c8SDave Airlie return -EINVAL; 3024fb3b06c8SDave Airlie 30257c4eaca4SJakob Bornecrantz if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) 3026f453ba04SDave Airlie return -EINVAL; 3027f453ba04SDave Airlie 3028a2b34e22SRob Clark crtc = drm_crtc_find(dev, req->crtc_id); 3029a2b34e22SRob Clark if (!crtc) { 303058367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); 3031f27657f2SVille Syrjälä return -ENOENT; 3032f453ba04SDave Airlie } 3033f453ba04SDave Airlie 3034161d0dc1SMatt Roper /* 3035161d0dc1SMatt Roper * If this crtc has a universal cursor plane, call that plane's update 3036161d0dc1SMatt Roper * handler rather than using legacy cursor handlers. 3037161d0dc1SMatt Roper */ 30384d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->cursor); 3039f2b50c11SDaniel Vetter if (crtc->cursor) { 3040f2b50c11SDaniel Vetter ret = drm_mode_cursor_universal(crtc, req, file_priv); 3041f2b50c11SDaniel Vetter goto out; 3042f2b50c11SDaniel Vetter } 3043f2b50c11SDaniel Vetter 3044f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_BO) { 30454c813d4dSDave Airlie if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { 3046f453ba04SDave Airlie ret = -ENXIO; 3047f453ba04SDave Airlie goto out; 3048f453ba04SDave Airlie } 3049f453ba04SDave Airlie /* Turns off the cursor if handle is 0 */ 30504c813d4dSDave Airlie if (crtc->funcs->cursor_set2) 30514c813d4dSDave Airlie ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, 30524c813d4dSDave Airlie req->width, req->height, req->hot_x, req->hot_y); 30534c813d4dSDave Airlie else 3054f453ba04SDave Airlie ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, 3055f453ba04SDave Airlie req->width, req->height); 3056f453ba04SDave Airlie } 3057f453ba04SDave Airlie 3058f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_MOVE) { 3059f453ba04SDave Airlie if (crtc->funcs->cursor_move) { 3060f453ba04SDave Airlie ret = crtc->funcs->cursor_move(crtc, req->x, req->y); 3061f453ba04SDave Airlie } else { 3062f453ba04SDave Airlie ret = -EFAULT; 3063f453ba04SDave Airlie goto out; 3064f453ba04SDave Airlie } 3065f453ba04SDave Airlie } 3066f453ba04SDave Airlie out: 3067d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 3068dac35663SDaniel Vetter 3069f453ba04SDave Airlie return ret; 30704c813d4dSDave Airlie 30714c813d4dSDave Airlie } 3072c8e32cc1SDaniel Vetter 3073c8e32cc1SDaniel Vetter 3074c8e32cc1SDaniel Vetter /** 3075c8e32cc1SDaniel Vetter * drm_mode_cursor_ioctl - set CRTC's cursor configuration 3076c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3077c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3078c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3079c8e32cc1SDaniel Vetter * 3080c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. 3081c8e32cc1SDaniel Vetter * 3082c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3083c8e32cc1SDaniel Vetter * 3084c8e32cc1SDaniel Vetter * Returns: 30851a498633SDaniel Vetter * Zero on success, negative errno on failure. 3086c8e32cc1SDaniel Vetter */ 30874c813d4dSDave Airlie int drm_mode_cursor_ioctl(struct drm_device *dev, 30884c813d4dSDave Airlie void *data, struct drm_file *file_priv) 30894c813d4dSDave Airlie { 30904c813d4dSDave Airlie struct drm_mode_cursor *req = data; 30914c813d4dSDave Airlie struct drm_mode_cursor2 new_req; 30924c813d4dSDave Airlie 30934c813d4dSDave Airlie memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); 30944c813d4dSDave Airlie new_req.hot_x = new_req.hot_y = 0; 30954c813d4dSDave Airlie 30964c813d4dSDave Airlie return drm_mode_cursor_common(dev, &new_req, file_priv); 30974c813d4dSDave Airlie } 30984c813d4dSDave Airlie 3099c8e32cc1SDaniel Vetter /** 3100c8e32cc1SDaniel Vetter * drm_mode_cursor2_ioctl - set CRTC's cursor configuration 3101c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3102c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3103c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3104c8e32cc1SDaniel Vetter * 3105c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. This implements the 2nd 3106c8e32cc1SDaniel Vetter * version of the cursor ioctl, which allows userspace to additionally specify 3107c8e32cc1SDaniel Vetter * the hotspot of the pointer. 3108c8e32cc1SDaniel Vetter * 3109c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3110c8e32cc1SDaniel Vetter * 3111c8e32cc1SDaniel Vetter * Returns: 31121a498633SDaniel Vetter * Zero on success, negative errno on failure. 3113c8e32cc1SDaniel Vetter */ 31144c813d4dSDave Airlie int drm_mode_cursor2_ioctl(struct drm_device *dev, 31154c813d4dSDave Airlie void *data, struct drm_file *file_priv) 31164c813d4dSDave Airlie { 31174c813d4dSDave Airlie struct drm_mode_cursor2 *req = data; 31184dfd909fSThierry Reding 31194c813d4dSDave Airlie return drm_mode_cursor_common(dev, req, file_priv); 3120f453ba04SDave Airlie } 3121f453ba04SDave Airlie 3122c8e32cc1SDaniel Vetter /** 3123c8e32cc1SDaniel Vetter * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description 3124c8e32cc1SDaniel Vetter * @bpp: bits per pixels 3125c8e32cc1SDaniel Vetter * @depth: bit depth per pixel 3126c8e32cc1SDaniel Vetter * 3127c8e32cc1SDaniel Vetter * Computes a drm fourcc pixel format code for the given @bpp/@depth values. 3128c8e32cc1SDaniel Vetter * Useful in fbdev emulation code, since that deals in those values. 3129c8e32cc1SDaniel Vetter */ 3130308e5bcbSJesse Barnes uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) 3131308e5bcbSJesse Barnes { 3132308e5bcbSJesse Barnes uint32_t fmt; 3133308e5bcbSJesse Barnes 3134308e5bcbSJesse Barnes switch (bpp) { 3135308e5bcbSJesse Barnes case 8: 3136d84f031bSVille Syrjälä fmt = DRM_FORMAT_C8; 3137308e5bcbSJesse Barnes break; 3138308e5bcbSJesse Barnes case 16: 3139308e5bcbSJesse Barnes if (depth == 15) 314004b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB1555; 3141308e5bcbSJesse Barnes else 314204b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB565; 3143308e5bcbSJesse Barnes break; 3144308e5bcbSJesse Barnes case 24: 314504b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB888; 3146308e5bcbSJesse Barnes break; 3147308e5bcbSJesse Barnes case 32: 3148308e5bcbSJesse Barnes if (depth == 24) 314904b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 3150308e5bcbSJesse Barnes else if (depth == 30) 315104b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB2101010; 3152308e5bcbSJesse Barnes else 315304b3924dSVille Syrjälä fmt = DRM_FORMAT_ARGB8888; 3154308e5bcbSJesse Barnes break; 3155308e5bcbSJesse Barnes default: 315604b3924dSVille Syrjälä DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); 315704b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 3158308e5bcbSJesse Barnes break; 3159308e5bcbSJesse Barnes } 3160308e5bcbSJesse Barnes 3161308e5bcbSJesse Barnes return fmt; 3162308e5bcbSJesse Barnes } 3163308e5bcbSJesse Barnes EXPORT_SYMBOL(drm_mode_legacy_fb_format); 3164308e5bcbSJesse Barnes 3165f453ba04SDave Airlie /** 3166f453ba04SDave Airlie * drm_mode_addfb - add an FB to the graphics configuration 3167065a50edSDaniel Vetter * @dev: drm device for the ioctl 3168065a50edSDaniel Vetter * @data: data pointer for the ioctl 3169065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3170f453ba04SDave Airlie * 3171c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request. This is the 3172209f5527SChuck Ebbert * original addfb ioctl which only supported RGB formats. 3173f453ba04SDave Airlie * 3174f453ba04SDave Airlie * Called by the user via ioctl. 3175f453ba04SDave Airlie * 3176c8e32cc1SDaniel Vetter * Returns: 31771a498633SDaniel Vetter * Zero on success, negative errno on failure. 3178f453ba04SDave Airlie */ 3179f453ba04SDave Airlie int drm_mode_addfb(struct drm_device *dev, 3180f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3181f453ba04SDave Airlie { 3182308e5bcbSJesse Barnes struct drm_mode_fb_cmd *or = data; 3183308e5bcbSJesse Barnes struct drm_mode_fb_cmd2 r = {}; 3184228f2cb3SChuck Ebbert int ret; 3185308e5bcbSJesse Barnes 3186228f2cb3SChuck Ebbert /* convert to new format and call new ioctl */ 3187308e5bcbSJesse Barnes r.fb_id = or->fb_id; 3188308e5bcbSJesse Barnes r.width = or->width; 3189308e5bcbSJesse Barnes r.height = or->height; 3190308e5bcbSJesse Barnes r.pitches[0] = or->pitch; 3191308e5bcbSJesse Barnes r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); 3192308e5bcbSJesse Barnes r.handles[0] = or->handle; 3193308e5bcbSJesse Barnes 3194228f2cb3SChuck Ebbert ret = drm_mode_addfb2(dev, &r, file_priv); 3195228f2cb3SChuck Ebbert if (ret) 3196228f2cb3SChuck Ebbert return ret; 3197308e5bcbSJesse Barnes 3198228f2cb3SChuck Ebbert or->fb_id = r.fb_id; 31994b096ac1SDaniel Vetter 3200baf698b0SDaniel Vetter return 0; 3201308e5bcbSJesse Barnes } 3202308e5bcbSJesse Barnes 3203cff91b62SVille Syrjälä static int format_check(const struct drm_mode_fb_cmd2 *r) 3204935b5977SVille Syrjälä { 3205935b5977SVille Syrjälä uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; 3206935b5977SVille Syrjälä 3207935b5977SVille Syrjälä switch (format) { 3208935b5977SVille Syrjälä case DRM_FORMAT_C8: 3209935b5977SVille Syrjälä case DRM_FORMAT_RGB332: 3210935b5977SVille Syrjälä case DRM_FORMAT_BGR233: 3211935b5977SVille Syrjälä case DRM_FORMAT_XRGB4444: 3212935b5977SVille Syrjälä case DRM_FORMAT_XBGR4444: 3213935b5977SVille Syrjälä case DRM_FORMAT_RGBX4444: 3214935b5977SVille Syrjälä case DRM_FORMAT_BGRX4444: 3215935b5977SVille Syrjälä case DRM_FORMAT_ARGB4444: 3216935b5977SVille Syrjälä case DRM_FORMAT_ABGR4444: 3217935b5977SVille Syrjälä case DRM_FORMAT_RGBA4444: 3218935b5977SVille Syrjälä case DRM_FORMAT_BGRA4444: 3219935b5977SVille Syrjälä case DRM_FORMAT_XRGB1555: 3220935b5977SVille Syrjälä case DRM_FORMAT_XBGR1555: 3221935b5977SVille Syrjälä case DRM_FORMAT_RGBX5551: 3222935b5977SVille Syrjälä case DRM_FORMAT_BGRX5551: 3223935b5977SVille Syrjälä case DRM_FORMAT_ARGB1555: 3224935b5977SVille Syrjälä case DRM_FORMAT_ABGR1555: 3225935b5977SVille Syrjälä case DRM_FORMAT_RGBA5551: 3226935b5977SVille Syrjälä case DRM_FORMAT_BGRA5551: 3227935b5977SVille Syrjälä case DRM_FORMAT_RGB565: 3228935b5977SVille Syrjälä case DRM_FORMAT_BGR565: 3229935b5977SVille Syrjälä case DRM_FORMAT_RGB888: 3230935b5977SVille Syrjälä case DRM_FORMAT_BGR888: 3231935b5977SVille Syrjälä case DRM_FORMAT_XRGB8888: 3232935b5977SVille Syrjälä case DRM_FORMAT_XBGR8888: 3233935b5977SVille Syrjälä case DRM_FORMAT_RGBX8888: 3234935b5977SVille Syrjälä case DRM_FORMAT_BGRX8888: 3235935b5977SVille Syrjälä case DRM_FORMAT_ARGB8888: 3236935b5977SVille Syrjälä case DRM_FORMAT_ABGR8888: 3237935b5977SVille Syrjälä case DRM_FORMAT_RGBA8888: 3238935b5977SVille Syrjälä case DRM_FORMAT_BGRA8888: 3239935b5977SVille Syrjälä case DRM_FORMAT_XRGB2101010: 3240935b5977SVille Syrjälä case DRM_FORMAT_XBGR2101010: 3241935b5977SVille Syrjälä case DRM_FORMAT_RGBX1010102: 3242935b5977SVille Syrjälä case DRM_FORMAT_BGRX1010102: 3243935b5977SVille Syrjälä case DRM_FORMAT_ARGB2101010: 3244935b5977SVille Syrjälä case DRM_FORMAT_ABGR2101010: 3245935b5977SVille Syrjälä case DRM_FORMAT_RGBA1010102: 3246935b5977SVille Syrjälä case DRM_FORMAT_BGRA1010102: 3247935b5977SVille Syrjälä case DRM_FORMAT_YUYV: 3248935b5977SVille Syrjälä case DRM_FORMAT_YVYU: 3249935b5977SVille Syrjälä case DRM_FORMAT_UYVY: 3250935b5977SVille Syrjälä case DRM_FORMAT_VYUY: 3251935b5977SVille Syrjälä case DRM_FORMAT_AYUV: 3252935b5977SVille Syrjälä case DRM_FORMAT_NV12: 3253935b5977SVille Syrjälä case DRM_FORMAT_NV21: 3254935b5977SVille Syrjälä case DRM_FORMAT_NV16: 3255935b5977SVille Syrjälä case DRM_FORMAT_NV61: 3256ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 3257ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 3258935b5977SVille Syrjälä case DRM_FORMAT_YUV410: 3259935b5977SVille Syrjälä case DRM_FORMAT_YVU410: 3260935b5977SVille Syrjälä case DRM_FORMAT_YUV411: 3261935b5977SVille Syrjälä case DRM_FORMAT_YVU411: 3262935b5977SVille Syrjälä case DRM_FORMAT_YUV420: 3263935b5977SVille Syrjälä case DRM_FORMAT_YVU420: 3264935b5977SVille Syrjälä case DRM_FORMAT_YUV422: 3265935b5977SVille Syrjälä case DRM_FORMAT_YVU422: 3266935b5977SVille Syrjälä case DRM_FORMAT_YUV444: 3267935b5977SVille Syrjälä case DRM_FORMAT_YVU444: 3268935b5977SVille Syrjälä return 0; 3269935b5977SVille Syrjälä default: 327023c453a4SVille Syrjälä DRM_DEBUG_KMS("invalid pixel format %s\n", 327123c453a4SVille Syrjälä drm_get_format_name(r->pixel_format)); 3272935b5977SVille Syrjälä return -EINVAL; 3273935b5977SVille Syrjälä } 3274935b5977SVille Syrjälä } 3275935b5977SVille Syrjälä 3276cff91b62SVille Syrjälä static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) 3277d1b45d5fSVille Syrjälä { 3278d1b45d5fSVille Syrjälä int ret, hsub, vsub, num_planes, i; 3279d1b45d5fSVille Syrjälä 3280d1b45d5fSVille Syrjälä ret = format_check(r); 3281d1b45d5fSVille Syrjälä if (ret) { 32826ba6d03eSVille Syrjälä DRM_DEBUG_KMS("bad framebuffer format %s\n", 32836ba6d03eSVille Syrjälä drm_get_format_name(r->pixel_format)); 3284d1b45d5fSVille Syrjälä return ret; 3285d1b45d5fSVille Syrjälä } 3286d1b45d5fSVille Syrjälä 3287d1b45d5fSVille Syrjälä hsub = drm_format_horz_chroma_subsampling(r->pixel_format); 3288d1b45d5fSVille Syrjälä vsub = drm_format_vert_chroma_subsampling(r->pixel_format); 3289d1b45d5fSVille Syrjälä num_planes = drm_format_num_planes(r->pixel_format); 3290d1b45d5fSVille Syrjälä 3291d1b45d5fSVille Syrjälä if (r->width == 0 || r->width % hsub) { 3292209f5527SChuck Ebbert DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); 3293d1b45d5fSVille Syrjälä return -EINVAL; 3294d1b45d5fSVille Syrjälä } 3295d1b45d5fSVille Syrjälä 3296d1b45d5fSVille Syrjälä if (r->height == 0 || r->height % vsub) { 32971aa1b11cSDave Airlie DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); 3298d1b45d5fSVille Syrjälä return -EINVAL; 3299d1b45d5fSVille Syrjälä } 3300d1b45d5fSVille Syrjälä 3301d1b45d5fSVille Syrjälä for (i = 0; i < num_planes; i++) { 3302d1b45d5fSVille Syrjälä unsigned int width = r->width / (i != 0 ? hsub : 1); 3303b180b5d1SVille Syrjälä unsigned int height = r->height / (i != 0 ? vsub : 1); 3304b180b5d1SVille Syrjälä unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); 3305d1b45d5fSVille Syrjälä 3306d1b45d5fSVille Syrjälä if (!r->handles[i]) { 33071aa1b11cSDave Airlie DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); 3308d1b45d5fSVille Syrjälä return -EINVAL; 3309d1b45d5fSVille Syrjälä } 3310d1b45d5fSVille Syrjälä 3311b180b5d1SVille Syrjälä if ((uint64_t) width * cpp > UINT_MAX) 3312b180b5d1SVille Syrjälä return -ERANGE; 3313b180b5d1SVille Syrjälä 3314b180b5d1SVille Syrjälä if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) 3315b180b5d1SVille Syrjälä return -ERANGE; 3316b180b5d1SVille Syrjälä 3317b180b5d1SVille Syrjälä if (r->pitches[i] < width * cpp) { 33181aa1b11cSDave Airlie DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); 3319d1b45d5fSVille Syrjälä return -EINVAL; 3320d1b45d5fSVille Syrjälä } 3321e3eb3250SRob Clark 3322e3eb3250SRob Clark if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { 3323e3eb3250SRob Clark DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", 3324e3eb3250SRob Clark r->modifier[i], i); 3325e3eb3250SRob Clark return -EINVAL; 3326e3eb3250SRob Clark } 3327570655b0SRob Clark 3328570655b0SRob Clark /* modifier specific checks: */ 3329570655b0SRob Clark switch (r->modifier[i]) { 3330570655b0SRob Clark case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: 3331570655b0SRob Clark /* NOTE: the pitch restriction may be lifted later if it turns 3332570655b0SRob Clark * out that no hw has this restriction: 3333570655b0SRob Clark */ 3334570655b0SRob Clark if (r->pixel_format != DRM_FORMAT_NV12 || 3335570655b0SRob Clark width % 128 || height % 32 || 3336570655b0SRob Clark r->pitches[i] % 128) { 3337570655b0SRob Clark DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); 3338570655b0SRob Clark return -EINVAL; 3339570655b0SRob Clark } 3340570655b0SRob Clark break; 3341570655b0SRob Clark 3342570655b0SRob Clark default: 3343570655b0SRob Clark break; 3344570655b0SRob Clark } 3345d1b45d5fSVille Syrjälä } 3346d1b45d5fSVille Syrjälä 3347bbe16a40SDaniel Vetter for (i = num_planes; i < 4; i++) { 3348bbe16a40SDaniel Vetter if (r->modifier[i]) { 3349bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); 3350bbe16a40SDaniel Vetter return -EINVAL; 3351bbe16a40SDaniel Vetter } 3352bbe16a40SDaniel Vetter 3353bbe16a40SDaniel Vetter /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ 3354bbe16a40SDaniel Vetter if (!(r->flags & DRM_MODE_FB_MODIFIERS)) 3355bbe16a40SDaniel Vetter continue; 3356bbe16a40SDaniel Vetter 3357bbe16a40SDaniel Vetter if (r->handles[i]) { 3358bbe16a40SDaniel Vetter DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); 3359bbe16a40SDaniel Vetter return -EINVAL; 3360bbe16a40SDaniel Vetter } 3361bbe16a40SDaniel Vetter 3362bbe16a40SDaniel Vetter if (r->pitches[i]) { 3363bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); 3364bbe16a40SDaniel Vetter return -EINVAL; 3365bbe16a40SDaniel Vetter } 3366bbe16a40SDaniel Vetter 3367bbe16a40SDaniel Vetter if (r->offsets[i]) { 3368bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); 3369bbe16a40SDaniel Vetter return -EINVAL; 3370bbe16a40SDaniel Vetter } 3371bbe16a40SDaniel Vetter } 3372bbe16a40SDaniel Vetter 3373d1b45d5fSVille Syrjälä return 0; 3374d1b45d5fSVille Syrjälä } 3375d1b45d5fSVille Syrjälä 33769a6f5130SChris Wilson static struct drm_framebuffer * 33779a6f5130SChris Wilson internal_framebuffer_create(struct drm_device *dev, 33781eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *r, 3379c394c2b0SMatt Roper struct drm_file *file_priv) 3380c394c2b0SMatt Roper { 3381c394c2b0SMatt Roper struct drm_mode_config *config = &dev->mode_config; 3382c394c2b0SMatt Roper struct drm_framebuffer *fb; 3383c394c2b0SMatt Roper int ret; 3384c394c2b0SMatt Roper 3385e3eb3250SRob Clark if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { 3386c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); 3387c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3388c394c2b0SMatt Roper } 3389c394c2b0SMatt Roper 3390c394c2b0SMatt Roper if ((config->min_width > r->width) || (r->width > config->max_width)) { 3391c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", 3392c394c2b0SMatt Roper r->width, config->min_width, config->max_width); 3393c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3394c394c2b0SMatt Roper } 3395c394c2b0SMatt Roper if ((config->min_height > r->height) || (r->height > config->max_height)) { 3396c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", 3397c394c2b0SMatt Roper r->height, config->min_height, config->max_height); 3398c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3399c394c2b0SMatt Roper } 3400c394c2b0SMatt Roper 3401e3eb3250SRob Clark if (r->flags & DRM_MODE_FB_MODIFIERS && 3402e3eb3250SRob Clark !dev->mode_config.allow_fb_modifiers) { 3403e3eb3250SRob Clark DRM_DEBUG_KMS("driver does not support fb modifiers\n"); 3404e3eb3250SRob Clark return ERR_PTR(-EINVAL); 3405e3eb3250SRob Clark } 3406e3eb3250SRob Clark 3407c394c2b0SMatt Roper ret = framebuffer_check(r); 3408c394c2b0SMatt Roper if (ret) 3409c394c2b0SMatt Roper return ERR_PTR(ret); 3410c394c2b0SMatt Roper 3411c394c2b0SMatt Roper fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); 3412c394c2b0SMatt Roper if (IS_ERR(fb)) { 3413c394c2b0SMatt Roper DRM_DEBUG_KMS("could not create framebuffer\n"); 3414c394c2b0SMatt Roper return fb; 3415c394c2b0SMatt Roper } 3416c394c2b0SMatt Roper 3417c394c2b0SMatt Roper return fb; 3418c394c2b0SMatt Roper } 3419c394c2b0SMatt Roper 3420308e5bcbSJesse Barnes /** 3421308e5bcbSJesse Barnes * drm_mode_addfb2 - add an FB to the graphics configuration 3422065a50edSDaniel Vetter * @dev: drm device for the ioctl 3423065a50edSDaniel Vetter * @data: data pointer for the ioctl 3424065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3425308e5bcbSJesse Barnes * 3426c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request with format. This is 3427c8e32cc1SDaniel Vetter * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers 3428c8e32cc1SDaniel Vetter * and uses fourcc codes as pixel format specifiers. 3429308e5bcbSJesse Barnes * 3430308e5bcbSJesse Barnes * Called by the user via ioctl. 3431308e5bcbSJesse Barnes * 3432c8e32cc1SDaniel Vetter * Returns: 34331a498633SDaniel Vetter * Zero on success, negative errno on failure. 3434308e5bcbSJesse Barnes */ 3435308e5bcbSJesse Barnes int drm_mode_addfb2(struct drm_device *dev, 3436308e5bcbSJesse Barnes void *data, struct drm_file *file_priv) 3437308e5bcbSJesse Barnes { 34389a6f5130SChris Wilson struct drm_mode_fb_cmd2 *r = data; 3439f453ba04SDave Airlie struct drm_framebuffer *fb; 3440f453ba04SDave Airlie 3441fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3442fb3b06c8SDave Airlie return -EINVAL; 3443fb3b06c8SDave Airlie 34449a6f5130SChris Wilson fb = internal_framebuffer_create(dev, r, file_priv); 3445c394c2b0SMatt Roper if (IS_ERR(fb)) 34464b096ac1SDaniel Vetter return PTR_ERR(fb); 3447f453ba04SDave Airlie 34489a6f5130SChris Wilson DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 34499a6f5130SChris Wilson r->fb_id = fb->base.id; 3450c7e1c59aSDave Airlie 3451c7e1c59aSDave Airlie /* Transfer ownership to the filp for reaping on close */ 3452c7e1c59aSDave Airlie mutex_lock(&file_priv->fbs_lock); 34539a6f5130SChris Wilson list_add(&fb->filp_head, &file_priv->fbs); 34549a6f5130SChris Wilson mutex_unlock(&file_priv->fbs_lock); 34559a6f5130SChris Wilson 3456c394c2b0SMatt Roper return 0; 3457f453ba04SDave Airlie } 3458f453ba04SDave Airlie 3459f453ba04SDave Airlie /** 3460f453ba04SDave Airlie * drm_mode_rmfb - remove an FB from the configuration 3461065a50edSDaniel Vetter * @dev: drm device for the ioctl 3462065a50edSDaniel Vetter * @data: data pointer for the ioctl 3463065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3464f453ba04SDave Airlie * 3465f453ba04SDave Airlie * Remove the FB specified by the user. 3466f453ba04SDave Airlie * 3467f453ba04SDave Airlie * Called by the user via ioctl. 3468f453ba04SDave Airlie * 3469c8e32cc1SDaniel Vetter * Returns: 34701a498633SDaniel Vetter * Zero on success, negative errno on failure. 3471f453ba04SDave Airlie */ 3472f453ba04SDave Airlie int drm_mode_rmfb(struct drm_device *dev, 3473f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3474f453ba04SDave Airlie { 3475f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 3476f453ba04SDave Airlie struct drm_framebuffer *fbl = NULL; 3477cee26ac4SDave Airlie struct drm_mode_object *obj; 3478f453ba04SDave Airlie uint32_t *id = data; 3479f453ba04SDave Airlie int found = 0; 3480f453ba04SDave Airlie 3481fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3482fb3b06c8SDave Airlie return -EINVAL; 3483fb3b06c8SDave Airlie 34844b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 34852b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 3486cee26ac4SDave Airlie obj = _object_find(dev, *id, DRM_MODE_OBJECT_FB); 3487cee26ac4SDave Airlie if (!obj) 34882b677e8cSDaniel Vetter goto fail_lookup; 3489cee26ac4SDave Airlie fb = obj_to_fb(obj); 3490f453ba04SDave Airlie list_for_each_entry(fbl, &file_priv->fbs, filp_head) 3491f453ba04SDave Airlie if (fb == fbl) 3492f453ba04SDave Airlie found = 1; 34932b677e8cSDaniel Vetter if (!found) 34942b677e8cSDaniel Vetter goto fail_lookup; 34952b677e8cSDaniel Vetter 34964b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 34972b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 34984b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 3499f453ba04SDave Airlie 350013803132SMaarten Lankhorst drm_framebuffer_unreference(fb); 35014b096ac1SDaniel Vetter 35022b677e8cSDaniel Vetter return 0; 35032b677e8cSDaniel Vetter 35042b677e8cSDaniel Vetter fail_lookup: 35052b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 35062b677e8cSDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 35072b677e8cSDaniel Vetter 350837c4e705SVille Syrjälä return -ENOENT; 3509f453ba04SDave Airlie } 3510f453ba04SDave Airlie 3511f453ba04SDave Airlie /** 3512f453ba04SDave Airlie * drm_mode_getfb - get FB info 3513065a50edSDaniel Vetter * @dev: drm device for the ioctl 3514065a50edSDaniel Vetter * @data: data pointer for the ioctl 3515065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3516f453ba04SDave Airlie * 3517f453ba04SDave Airlie * Lookup the FB given its ID and return info about it. 3518f453ba04SDave Airlie * 3519f453ba04SDave Airlie * Called by the user via ioctl. 3520f453ba04SDave Airlie * 3521c8e32cc1SDaniel Vetter * Returns: 35221a498633SDaniel Vetter * Zero on success, negative errno on failure. 3523f453ba04SDave Airlie */ 3524f453ba04SDave Airlie int drm_mode_getfb(struct drm_device *dev, 3525f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3526f453ba04SDave Airlie { 3527f453ba04SDave Airlie struct drm_mode_fb_cmd *r = data; 3528f453ba04SDave Airlie struct drm_framebuffer *fb; 352958c0dca1SDaniel Vetter int ret; 3530f453ba04SDave Airlie 3531fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3532fb3b06c8SDave Airlie return -EINVAL; 3533fb3b06c8SDave Airlie 3534786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, r->fb_id); 353558c0dca1SDaniel Vetter if (!fb) 353637c4e705SVille Syrjälä return -ENOENT; 3537f453ba04SDave Airlie 3538f453ba04SDave Airlie r->height = fb->height; 3539f453ba04SDave Airlie r->width = fb->width; 3540f453ba04SDave Airlie r->depth = fb->depth; 3541f453ba04SDave Airlie r->bpp = fb->bits_per_pixel; 354201f2c773SVille Syrjälä r->pitch = fb->pitches[0]; 3543101b96f3SDavid Herrmann if (fb->funcs->create_handle) { 354409f308f7SThomas Hellstrom if (file_priv->is_master || capable(CAP_SYS_ADMIN) || 354543683057SThomas Hellstrom drm_is_control_client(file_priv)) { 3546101b96f3SDavid Herrmann ret = fb->funcs->create_handle(fb, file_priv, 3547101b96f3SDavid Herrmann &r->handle); 3548101b96f3SDavid Herrmann } else { 3549101b96f3SDavid Herrmann /* GET_FB() is an unprivileged ioctl so we must not 3550101b96f3SDavid Herrmann * return a buffer-handle to non-master processes! For 3551101b96f3SDavid Herrmann * backwards-compatibility reasons, we cannot make 3552101b96f3SDavid Herrmann * GET_FB() privileged, so just return an invalid handle 3553101b96f3SDavid Herrmann * for non-masters. */ 3554101b96f3SDavid Herrmann r->handle = 0; 3555101b96f3SDavid Herrmann ret = 0; 3556101b96f3SDavid Herrmann } 3557101b96f3SDavid Herrmann } else { 3558af26ef3bSDaniel Vetter ret = -ENODEV; 3559101b96f3SDavid Herrmann } 3560f453ba04SDave Airlie 356158c0dca1SDaniel Vetter drm_framebuffer_unreference(fb); 356258c0dca1SDaniel Vetter 3563f453ba04SDave Airlie return ret; 3564f453ba04SDave Airlie } 3565f453ba04SDave Airlie 3566c8e32cc1SDaniel Vetter /** 3567c8e32cc1SDaniel Vetter * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB 3568c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3569c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3570c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3571c8e32cc1SDaniel Vetter * 3572c8e32cc1SDaniel Vetter * Lookup the FB and flush out the damaged area supplied by userspace as a clip 3573c8e32cc1SDaniel Vetter * rectangle list. Generic userspace which does frontbuffer rendering must call 3574c8e32cc1SDaniel Vetter * this ioctl to flush out the changes on manual-update display outputs, e.g. 3575c8e32cc1SDaniel Vetter * usb display-link, mipi manual update panels or edp panel self refresh modes. 3576c8e32cc1SDaniel Vetter * 3577c8e32cc1SDaniel Vetter * Modesetting drivers which always update the frontbuffer do not need to 3578c8e32cc1SDaniel Vetter * implement the corresponding ->dirty framebuffer callback. 3579c8e32cc1SDaniel Vetter * 3580c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3581c8e32cc1SDaniel Vetter * 3582c8e32cc1SDaniel Vetter * Returns: 35831a498633SDaniel Vetter * Zero on success, negative errno on failure. 3584c8e32cc1SDaniel Vetter */ 3585884840aaSJakob Bornecrantz int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 3586884840aaSJakob Bornecrantz void *data, struct drm_file *file_priv) 3587884840aaSJakob Bornecrantz { 3588884840aaSJakob Bornecrantz struct drm_clip_rect __user *clips_ptr; 3589884840aaSJakob Bornecrantz struct drm_clip_rect *clips = NULL; 3590884840aaSJakob Bornecrantz struct drm_mode_fb_dirty_cmd *r = data; 3591884840aaSJakob Bornecrantz struct drm_framebuffer *fb; 3592884840aaSJakob Bornecrantz unsigned flags; 3593884840aaSJakob Bornecrantz int num_clips; 35944a1b0714SLaurent Pinchart int ret; 3595884840aaSJakob Bornecrantz 3596fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3597fb3b06c8SDave Airlie return -EINVAL; 3598fb3b06c8SDave Airlie 3599786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, r->fb_id); 36004ccf097fSDaniel Vetter if (!fb) 360137c4e705SVille Syrjälä return -ENOENT; 3602884840aaSJakob Bornecrantz 3603884840aaSJakob Bornecrantz num_clips = r->num_clips; 360481f6c7f8SVille Syrjälä clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; 3605884840aaSJakob Bornecrantz 3606884840aaSJakob Bornecrantz if (!num_clips != !clips_ptr) { 3607884840aaSJakob Bornecrantz ret = -EINVAL; 3608884840aaSJakob Bornecrantz goto out_err1; 3609884840aaSJakob Bornecrantz } 3610884840aaSJakob Bornecrantz 3611884840aaSJakob Bornecrantz flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; 3612884840aaSJakob Bornecrantz 3613884840aaSJakob Bornecrantz /* If userspace annotates copy, clips must come in pairs */ 3614884840aaSJakob Bornecrantz if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { 3615884840aaSJakob Bornecrantz ret = -EINVAL; 3616884840aaSJakob Bornecrantz goto out_err1; 3617884840aaSJakob Bornecrantz } 3618884840aaSJakob Bornecrantz 3619884840aaSJakob Bornecrantz if (num_clips && clips_ptr) { 3620a5cd3351SXi Wang if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { 3621a5cd3351SXi Wang ret = -EINVAL; 3622a5cd3351SXi Wang goto out_err1; 3623a5cd3351SXi Wang } 3624bd3f0ff9SThierry Reding clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); 3625884840aaSJakob Bornecrantz if (!clips) { 3626884840aaSJakob Bornecrantz ret = -ENOMEM; 3627884840aaSJakob Bornecrantz goto out_err1; 3628884840aaSJakob Bornecrantz } 3629884840aaSJakob Bornecrantz 3630884840aaSJakob Bornecrantz ret = copy_from_user(clips, clips_ptr, 3631884840aaSJakob Bornecrantz num_clips * sizeof(*clips)); 3632e902a358SDan Carpenter if (ret) { 3633e902a358SDan Carpenter ret = -EFAULT; 3634884840aaSJakob Bornecrantz goto out_err2; 3635884840aaSJakob Bornecrantz } 3636e902a358SDan Carpenter } 3637884840aaSJakob Bornecrantz 3638884840aaSJakob Bornecrantz if (fb->funcs->dirty) { 363902b00162SThomas Hellstrom ret = fb->funcs->dirty(fb, file_priv, flags, r->color, 364002b00162SThomas Hellstrom clips, num_clips); 3641884840aaSJakob Bornecrantz } else { 3642884840aaSJakob Bornecrantz ret = -ENOSYS; 3643884840aaSJakob Bornecrantz } 3644884840aaSJakob Bornecrantz 3645884840aaSJakob Bornecrantz out_err2: 3646884840aaSJakob Bornecrantz kfree(clips); 3647884840aaSJakob Bornecrantz out_err1: 36484ccf097fSDaniel Vetter drm_framebuffer_unreference(fb); 36494ccf097fSDaniel Vetter 3650884840aaSJakob Bornecrantz return ret; 3651884840aaSJakob Bornecrantz } 3652884840aaSJakob Bornecrantz 3653884840aaSJakob Bornecrantz 3654f453ba04SDave Airlie /** 3655f453ba04SDave Airlie * drm_fb_release - remove and free the FBs on this file 3656065a50edSDaniel Vetter * @priv: drm file for the ioctl 3657f453ba04SDave Airlie * 3658f453ba04SDave Airlie * Destroy all the FBs associated with @filp. 3659f453ba04SDave Airlie * 3660f453ba04SDave Airlie * Called by the user via ioctl. 3661f453ba04SDave Airlie * 3662c8e32cc1SDaniel Vetter * Returns: 36631a498633SDaniel Vetter * Zero on success, negative errno on failure. 3664f453ba04SDave Airlie */ 3665ea39f835SKristian Høgsberg void drm_fb_release(struct drm_file *priv) 3666f453ba04SDave Airlie { 3667f453ba04SDave Airlie struct drm_framebuffer *fb, *tfb; 3668f453ba04SDave Airlie 36691b116297SDaniel Vetter /* 36701b116297SDaniel Vetter * When the file gets released that means no one else can access the fb 3671e2db726bSMartin Peres * list any more, so no need to grab fpriv->fbs_lock. And we need to 36721b116297SDaniel Vetter * avoid upsetting lockdep since the universal cursor code adds a 36731b116297SDaniel Vetter * framebuffer while holding mutex locks. 36741b116297SDaniel Vetter * 36751b116297SDaniel Vetter * Note that a real deadlock between fpriv->fbs_lock and the modeset 36761b116297SDaniel Vetter * locks is impossible here since no one else but this function can get 36771b116297SDaniel Vetter * at it any more. 36781b116297SDaniel Vetter */ 3679f453ba04SDave Airlie list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { 36804b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 36812b677e8cSDaniel Vetter 368273f7570bSMaarten Lankhorst /* This drops the fpriv->fbs reference. */ 368313803132SMaarten Lankhorst drm_framebuffer_unreference(fb); 3684f453ba04SDave Airlie } 3685f453ba04SDave Airlie } 3686f453ba04SDave Airlie 3687c8e32cc1SDaniel Vetter /** 3688c8e32cc1SDaniel Vetter * drm_property_create - create a new property type 3689c8e32cc1SDaniel Vetter * @dev: drm device 3690c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3691c8e32cc1SDaniel Vetter * @name: name of the property 3692c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3693c8e32cc1SDaniel Vetter * 3694c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3695c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3696c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3697c8e32cc1SDaniel Vetter * 36983b5b9932SDamien Lespiau * Note that the DRM core keeps a per-device list of properties and that, if 36993b5b9932SDamien Lespiau * drm_mode_config_cleanup() is called, it will destroy all properties created 37003b5b9932SDamien Lespiau * by the driver. 37013b5b9932SDamien Lespiau * 3702c8e32cc1SDaniel Vetter * Returns: 3703c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3704c8e32cc1SDaniel Vetter */ 3705f453ba04SDave Airlie struct drm_property *drm_property_create(struct drm_device *dev, int flags, 3706f453ba04SDave Airlie const char *name, int num_values) 3707f453ba04SDave Airlie { 3708f453ba04SDave Airlie struct drm_property *property = NULL; 37096bfc56aaSVille Syrjälä int ret; 3710f453ba04SDave Airlie 3711f453ba04SDave Airlie property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); 3712f453ba04SDave Airlie if (!property) 3713f453ba04SDave Airlie return NULL; 3714f453ba04SDave Airlie 371598f75de4SRob Clark property->dev = dev; 371698f75de4SRob Clark 3717f453ba04SDave Airlie if (num_values) { 3718bd3f0ff9SThierry Reding property->values = kcalloc(num_values, sizeof(uint64_t), 3719bd3f0ff9SThierry Reding GFP_KERNEL); 3720f453ba04SDave Airlie if (!property->values) 3721f453ba04SDave Airlie goto fail; 3722f453ba04SDave Airlie } 3723f453ba04SDave Airlie 37246bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); 37256bfc56aaSVille Syrjälä if (ret) 37266bfc56aaSVille Syrjälä goto fail; 37276bfc56aaSVille Syrjälä 3728f453ba04SDave Airlie property->flags = flags; 3729f453ba04SDave Airlie property->num_values = num_values; 37303758b341SDaniel Vetter INIT_LIST_HEAD(&property->enum_list); 3731f453ba04SDave Airlie 3732471dd2efSVinson Lee if (name) { 3733f453ba04SDave Airlie strncpy(property->name, name, DRM_PROP_NAME_LEN); 3734471dd2efSVinson Lee property->name[DRM_PROP_NAME_LEN-1] = '\0'; 3735471dd2efSVinson Lee } 3736f453ba04SDave Airlie 3737f453ba04SDave Airlie list_add_tail(&property->head, &dev->mode_config.property_list); 37385ea22f24SRob Clark 37395ea22f24SRob Clark WARN_ON(!drm_property_type_valid(property)); 37405ea22f24SRob Clark 3741f453ba04SDave Airlie return property; 3742f453ba04SDave Airlie fail: 37436bfc56aaSVille Syrjälä kfree(property->values); 3744f453ba04SDave Airlie kfree(property); 3745f453ba04SDave Airlie return NULL; 3746f453ba04SDave Airlie } 3747f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_create); 3748f453ba04SDave Airlie 3749c8e32cc1SDaniel Vetter /** 37502aa9d2bcSThierry Reding * drm_property_create_enum - create a new enumeration property type 3751c8e32cc1SDaniel Vetter * @dev: drm device 3752c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3753c8e32cc1SDaniel Vetter * @name: name of the property 3754c8e32cc1SDaniel Vetter * @props: enumeration lists with property values 3755c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3756c8e32cc1SDaniel Vetter * 3757c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3758c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3759c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3760c8e32cc1SDaniel Vetter * 3761c8e32cc1SDaniel Vetter * Userspace is only allowed to set one of the predefined values for enumeration 3762c8e32cc1SDaniel Vetter * properties. 3763c8e32cc1SDaniel Vetter * 3764c8e32cc1SDaniel Vetter * Returns: 3765c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3766c8e32cc1SDaniel Vetter */ 37674a67d391SSascha Hauer struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 37684a67d391SSascha Hauer const char *name, 37694a67d391SSascha Hauer const struct drm_prop_enum_list *props, 37704a67d391SSascha Hauer int num_values) 37714a67d391SSascha Hauer { 37724a67d391SSascha Hauer struct drm_property *property; 37734a67d391SSascha Hauer int i, ret; 37744a67d391SSascha Hauer 37754a67d391SSascha Hauer flags |= DRM_MODE_PROP_ENUM; 37764a67d391SSascha Hauer 37774a67d391SSascha Hauer property = drm_property_create(dev, flags, name, num_values); 37784a67d391SSascha Hauer if (!property) 37794a67d391SSascha Hauer return NULL; 37804a67d391SSascha Hauer 37814a67d391SSascha Hauer for (i = 0; i < num_values; i++) { 37824a67d391SSascha Hauer ret = drm_property_add_enum(property, i, 37834a67d391SSascha Hauer props[i].type, 37844a67d391SSascha Hauer props[i].name); 37854a67d391SSascha Hauer if (ret) { 37864a67d391SSascha Hauer drm_property_destroy(dev, property); 37874a67d391SSascha Hauer return NULL; 37884a67d391SSascha Hauer } 37894a67d391SSascha Hauer } 37904a67d391SSascha Hauer 37914a67d391SSascha Hauer return property; 37924a67d391SSascha Hauer } 37934a67d391SSascha Hauer EXPORT_SYMBOL(drm_property_create_enum); 37944a67d391SSascha Hauer 3795c8e32cc1SDaniel Vetter /** 37962aa9d2bcSThierry Reding * drm_property_create_bitmask - create a new bitmask property type 3797c8e32cc1SDaniel Vetter * @dev: drm device 3798c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3799c8e32cc1SDaniel Vetter * @name: name of the property 3800c8e32cc1SDaniel Vetter * @props: enumeration lists with property bitflags 3801295ee853SDaniel Vetter * @num_props: size of the @props array 3802295ee853SDaniel Vetter * @supported_bits: bitmask of all supported enumeration values 3803c8e32cc1SDaniel Vetter * 3804295ee853SDaniel Vetter * This creates a new bitmask drm property which can then be attached to a drm 3805c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3806c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3807c8e32cc1SDaniel Vetter * 3808c8e32cc1SDaniel Vetter * Compared to plain enumeration properties userspace is allowed to set any 3809c8e32cc1SDaniel Vetter * or'ed together combination of the predefined property bitflag values 3810c8e32cc1SDaniel Vetter * 3811c8e32cc1SDaniel Vetter * Returns: 3812c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3813c8e32cc1SDaniel Vetter */ 381449e27545SRob Clark struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 381549e27545SRob Clark int flags, const char *name, 381649e27545SRob Clark const struct drm_prop_enum_list *props, 38177689ffb3SVille Syrjälä int num_props, 38187689ffb3SVille Syrjälä uint64_t supported_bits) 381949e27545SRob Clark { 382049e27545SRob Clark struct drm_property *property; 38217689ffb3SVille Syrjälä int i, ret, index = 0; 38227689ffb3SVille Syrjälä int num_values = hweight64(supported_bits); 382349e27545SRob Clark 382449e27545SRob Clark flags |= DRM_MODE_PROP_BITMASK; 382549e27545SRob Clark 382649e27545SRob Clark property = drm_property_create(dev, flags, name, num_values); 382749e27545SRob Clark if (!property) 382849e27545SRob Clark return NULL; 38297689ffb3SVille Syrjälä for (i = 0; i < num_props; i++) { 38307689ffb3SVille Syrjälä if (!(supported_bits & (1ULL << props[i].type))) 38317689ffb3SVille Syrjälä continue; 383249e27545SRob Clark 38337689ffb3SVille Syrjälä if (WARN_ON(index >= num_values)) { 38347689ffb3SVille Syrjälä drm_property_destroy(dev, property); 38357689ffb3SVille Syrjälä return NULL; 38367689ffb3SVille Syrjälä } 38377689ffb3SVille Syrjälä 38387689ffb3SVille Syrjälä ret = drm_property_add_enum(property, index++, 383949e27545SRob Clark props[i].type, 384049e27545SRob Clark props[i].name); 384149e27545SRob Clark if (ret) { 384249e27545SRob Clark drm_property_destroy(dev, property); 384349e27545SRob Clark return NULL; 384449e27545SRob Clark } 384549e27545SRob Clark } 384649e27545SRob Clark 384749e27545SRob Clark return property; 384849e27545SRob Clark } 384949e27545SRob Clark EXPORT_SYMBOL(drm_property_create_bitmask); 385049e27545SRob Clark 3851ebc44cf3SRob Clark static struct drm_property *property_create_range(struct drm_device *dev, 3852ebc44cf3SRob Clark int flags, const char *name, 3853ebc44cf3SRob Clark uint64_t min, uint64_t max) 3854ebc44cf3SRob Clark { 3855ebc44cf3SRob Clark struct drm_property *property; 3856ebc44cf3SRob Clark 3857ebc44cf3SRob Clark property = drm_property_create(dev, flags, name, 2); 3858ebc44cf3SRob Clark if (!property) 3859ebc44cf3SRob Clark return NULL; 3860ebc44cf3SRob Clark 3861ebc44cf3SRob Clark property->values[0] = min; 3862ebc44cf3SRob Clark property->values[1] = max; 3863ebc44cf3SRob Clark 3864ebc44cf3SRob Clark return property; 3865ebc44cf3SRob Clark } 3866ebc44cf3SRob Clark 3867c8e32cc1SDaniel Vetter /** 3868960cd9d4SDaniel Vetter * drm_property_create_range - create a new unsigned ranged property type 3869c8e32cc1SDaniel Vetter * @dev: drm device 3870c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3871c8e32cc1SDaniel Vetter * @name: name of the property 3872c8e32cc1SDaniel Vetter * @min: minimum value of the property 3873c8e32cc1SDaniel Vetter * @max: maximum value of the property 3874c8e32cc1SDaniel Vetter * 3875c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3876c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3877c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3878c8e32cc1SDaniel Vetter * 3879960cd9d4SDaniel Vetter * Userspace is allowed to set any unsigned integer value in the (min, max) 3880960cd9d4SDaniel Vetter * range inclusive. 3881c8e32cc1SDaniel Vetter * 3882c8e32cc1SDaniel Vetter * Returns: 3883c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3884c8e32cc1SDaniel Vetter */ 3885d9bc3c02SSascha Hauer struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 3886d9bc3c02SSascha Hauer const char *name, 3887d9bc3c02SSascha Hauer uint64_t min, uint64_t max) 3888d9bc3c02SSascha Hauer { 3889ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, 3890ebc44cf3SRob Clark name, min, max); 3891d9bc3c02SSascha Hauer } 3892d9bc3c02SSascha Hauer EXPORT_SYMBOL(drm_property_create_range); 3893d9bc3c02SSascha Hauer 3894960cd9d4SDaniel Vetter /** 3895960cd9d4SDaniel Vetter * drm_property_create_signed_range - create a new signed ranged property type 3896960cd9d4SDaniel Vetter * @dev: drm device 3897960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3898960cd9d4SDaniel Vetter * @name: name of the property 3899960cd9d4SDaniel Vetter * @min: minimum value of the property 3900960cd9d4SDaniel Vetter * @max: maximum value of the property 3901960cd9d4SDaniel Vetter * 3902960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3903960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3904960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3905960cd9d4SDaniel Vetter * 3906960cd9d4SDaniel Vetter * Userspace is allowed to set any signed integer value in the (min, max) 3907960cd9d4SDaniel Vetter * range inclusive. 3908960cd9d4SDaniel Vetter * 3909960cd9d4SDaniel Vetter * Returns: 3910960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3911960cd9d4SDaniel Vetter */ 3912ebc44cf3SRob Clark struct drm_property *drm_property_create_signed_range(struct drm_device *dev, 3913ebc44cf3SRob Clark int flags, const char *name, 3914ebc44cf3SRob Clark int64_t min, int64_t max) 3915ebc44cf3SRob Clark { 3916ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, 3917ebc44cf3SRob Clark name, I642U64(min), I642U64(max)); 3918ebc44cf3SRob Clark } 3919ebc44cf3SRob Clark EXPORT_SYMBOL(drm_property_create_signed_range); 3920ebc44cf3SRob Clark 3921960cd9d4SDaniel Vetter /** 3922960cd9d4SDaniel Vetter * drm_property_create_object - create a new object property type 3923960cd9d4SDaniel Vetter * @dev: drm device 3924960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3925960cd9d4SDaniel Vetter * @name: name of the property 3926960cd9d4SDaniel Vetter * @type: object type from DRM_MODE_OBJECT_* defines 3927960cd9d4SDaniel Vetter * 3928960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3929960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3930960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3931960cd9d4SDaniel Vetter * 3932960cd9d4SDaniel Vetter * Userspace is only allowed to set this to any property value of the given 3933960cd9d4SDaniel Vetter * @type. Only useful for atomic properties, which is enforced. 3934960cd9d4SDaniel Vetter * 3935960cd9d4SDaniel Vetter * Returns: 3936960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3937960cd9d4SDaniel Vetter */ 393898f75de4SRob Clark struct drm_property *drm_property_create_object(struct drm_device *dev, 393998f75de4SRob Clark int flags, const char *name, uint32_t type) 394098f75de4SRob Clark { 394198f75de4SRob Clark struct drm_property *property; 394298f75de4SRob Clark 394398f75de4SRob Clark flags |= DRM_MODE_PROP_OBJECT; 394498f75de4SRob Clark 3945960cd9d4SDaniel Vetter if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) 3946960cd9d4SDaniel Vetter return NULL; 3947960cd9d4SDaniel Vetter 394898f75de4SRob Clark property = drm_property_create(dev, flags, name, 1); 394998f75de4SRob Clark if (!property) 395098f75de4SRob Clark return NULL; 395198f75de4SRob Clark 395298f75de4SRob Clark property->values[0] = type; 395398f75de4SRob Clark 395498f75de4SRob Clark return property; 395598f75de4SRob Clark } 395698f75de4SRob Clark EXPORT_SYMBOL(drm_property_create_object); 395798f75de4SRob Clark 3958c8e32cc1SDaniel Vetter /** 3959960cd9d4SDaniel Vetter * drm_property_create_bool - create a new boolean property type 3960960cd9d4SDaniel Vetter * @dev: drm device 3961960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3962960cd9d4SDaniel Vetter * @name: name of the property 3963960cd9d4SDaniel Vetter * 3964960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3965960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3966960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3967960cd9d4SDaniel Vetter * 3968960cd9d4SDaniel Vetter * This is implemented as a ranged property with only {0, 1} as valid values. 3969960cd9d4SDaniel Vetter * 3970960cd9d4SDaniel Vetter * Returns: 3971960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3972960cd9d4SDaniel Vetter */ 3973960cd9d4SDaniel Vetter struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, 3974960cd9d4SDaniel Vetter const char *name) 3975960cd9d4SDaniel Vetter { 3976960cd9d4SDaniel Vetter return drm_property_create_range(dev, flags, name, 0, 1); 3977960cd9d4SDaniel Vetter } 3978960cd9d4SDaniel Vetter EXPORT_SYMBOL(drm_property_create_bool); 3979960cd9d4SDaniel Vetter 3980960cd9d4SDaniel Vetter /** 3981c8e32cc1SDaniel Vetter * drm_property_add_enum - add a possible value to an enumeration property 3982c8e32cc1SDaniel Vetter * @property: enumeration property to change 3983c8e32cc1SDaniel Vetter * @index: index of the new enumeration 3984c8e32cc1SDaniel Vetter * @value: value of the new enumeration 3985c8e32cc1SDaniel Vetter * @name: symbolic name of the new enumeration 3986c8e32cc1SDaniel Vetter * 3987c8e32cc1SDaniel Vetter * This functions adds enumerations to a property. 3988c8e32cc1SDaniel Vetter * 3989c8e32cc1SDaniel Vetter * It's use is deprecated, drivers should use one of the more specific helpers 3990c8e32cc1SDaniel Vetter * to directly create the property with all enumerations already attached. 3991c8e32cc1SDaniel Vetter * 3992c8e32cc1SDaniel Vetter * Returns: 3993c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3994c8e32cc1SDaniel Vetter */ 3995f453ba04SDave Airlie int drm_property_add_enum(struct drm_property *property, int index, 3996f453ba04SDave Airlie uint64_t value, const char *name) 3997f453ba04SDave Airlie { 3998f453ba04SDave Airlie struct drm_property_enum *prop_enum; 3999f453ba04SDave Airlie 40005ea22f24SRob Clark if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 40015ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) 400249e27545SRob Clark return -EINVAL; 400349e27545SRob Clark 400449e27545SRob Clark /* 400549e27545SRob Clark * Bitmask enum properties have the additional constraint of values 400649e27545SRob Clark * from 0 to 63 400749e27545SRob Clark */ 40085ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && 40095ea22f24SRob Clark (value > 63)) 4010f453ba04SDave Airlie return -EINVAL; 4011f453ba04SDave Airlie 40123758b341SDaniel Vetter if (!list_empty(&property->enum_list)) { 40133758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 4014f453ba04SDave Airlie if (prop_enum->value == value) { 4015f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 4016f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 4017f453ba04SDave Airlie return 0; 4018f453ba04SDave Airlie } 4019f453ba04SDave Airlie } 4020f453ba04SDave Airlie } 4021f453ba04SDave Airlie 4022f453ba04SDave Airlie prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); 4023f453ba04SDave Airlie if (!prop_enum) 4024f453ba04SDave Airlie return -ENOMEM; 4025f453ba04SDave Airlie 4026f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 4027f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 4028f453ba04SDave Airlie prop_enum->value = value; 4029f453ba04SDave Airlie 4030f453ba04SDave Airlie property->values[index] = value; 40313758b341SDaniel Vetter list_add_tail(&prop_enum->head, &property->enum_list); 4032f453ba04SDave Airlie return 0; 4033f453ba04SDave Airlie } 4034f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_add_enum); 4035f453ba04SDave Airlie 4036c8e32cc1SDaniel Vetter /** 4037c8e32cc1SDaniel Vetter * drm_property_destroy - destroy a drm property 4038c8e32cc1SDaniel Vetter * @dev: drm device 4039c8e32cc1SDaniel Vetter * @property: property to destry 4040c8e32cc1SDaniel Vetter * 4041c8e32cc1SDaniel Vetter * This function frees a property including any attached resources like 4042c8e32cc1SDaniel Vetter * enumeration values. 4043c8e32cc1SDaniel Vetter */ 4044f453ba04SDave Airlie void drm_property_destroy(struct drm_device *dev, struct drm_property *property) 4045f453ba04SDave Airlie { 4046f453ba04SDave Airlie struct drm_property_enum *prop_enum, *pt; 4047f453ba04SDave Airlie 40483758b341SDaniel Vetter list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { 4049f453ba04SDave Airlie list_del(&prop_enum->head); 4050f453ba04SDave Airlie kfree(prop_enum); 4051f453ba04SDave Airlie } 4052f453ba04SDave Airlie 4053f453ba04SDave Airlie if (property->num_values) 4054f453ba04SDave Airlie kfree(property->values); 40557c8f6d25SDave Airlie drm_mode_object_unregister(dev, &property->base); 4056f453ba04SDave Airlie list_del(&property->head); 4057f453ba04SDave Airlie kfree(property); 4058f453ba04SDave Airlie } 4059f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_destroy); 4060f453ba04SDave Airlie 4061c8e32cc1SDaniel Vetter /** 4062c8e32cc1SDaniel Vetter * drm_object_attach_property - attach a property to a modeset object 4063c8e32cc1SDaniel Vetter * @obj: drm modeset object 4064c8e32cc1SDaniel Vetter * @property: property to attach 4065c8e32cc1SDaniel Vetter * @init_val: initial value of the property 4066c8e32cc1SDaniel Vetter * 4067c8e32cc1SDaniel Vetter * This attaches the given property to the modeset object with the given initial 4068c8e32cc1SDaniel Vetter * value. Currently this function cannot fail since the properties are stored in 4069c8e32cc1SDaniel Vetter * a statically sized array. 4070c8e32cc1SDaniel Vetter */ 4071c543188aSPaulo Zanoni void drm_object_attach_property(struct drm_mode_object *obj, 4072c543188aSPaulo Zanoni struct drm_property *property, 4073c543188aSPaulo Zanoni uint64_t init_val) 4074c543188aSPaulo Zanoni { 40757f88a9beSPaulo Zanoni int count = obj->properties->count; 4076c543188aSPaulo Zanoni 40777f88a9beSPaulo Zanoni if (count == DRM_OBJECT_MAX_PROPERTY) { 40787f88a9beSPaulo Zanoni WARN(1, "Failed to attach object property (type: 0x%x). Please " 40797f88a9beSPaulo Zanoni "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " 40807f88a9beSPaulo Zanoni "you see this message on the same object type.\n", 40817f88a9beSPaulo Zanoni obj->type); 4082c543188aSPaulo Zanoni return; 4083c543188aSPaulo Zanoni } 4084c543188aSPaulo Zanoni 4085b17cd757SRob Clark obj->properties->properties[count] = property; 40867f88a9beSPaulo Zanoni obj->properties->values[count] = init_val; 40877f88a9beSPaulo Zanoni obj->properties->count++; 408888a48e29SRob Clark if (property->flags & DRM_MODE_PROP_ATOMIC) 408988a48e29SRob Clark obj->properties->atomic_count++; 4090c543188aSPaulo Zanoni } 4091c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_attach_property); 4092c543188aSPaulo Zanoni 4093c8e32cc1SDaniel Vetter /** 4094c8e32cc1SDaniel Vetter * drm_object_property_set_value - set the value of a property 4095c8e32cc1SDaniel Vetter * @obj: drm mode object to set property value for 4096c8e32cc1SDaniel Vetter * @property: property to set 4097c8e32cc1SDaniel Vetter * @val: value the property should be set to 4098c8e32cc1SDaniel Vetter * 4099c8e32cc1SDaniel Vetter * This functions sets a given property on a given object. This function only 4100c8e32cc1SDaniel Vetter * changes the software state of the property, it does not call into the 4101c8e32cc1SDaniel Vetter * driver's ->set_property callback. 4102c8e32cc1SDaniel Vetter * 4103c8e32cc1SDaniel Vetter * Returns: 4104c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 4105c8e32cc1SDaniel Vetter */ 4106c543188aSPaulo Zanoni int drm_object_property_set_value(struct drm_mode_object *obj, 4107c543188aSPaulo Zanoni struct drm_property *property, uint64_t val) 4108c543188aSPaulo Zanoni { 4109c543188aSPaulo Zanoni int i; 4110c543188aSPaulo Zanoni 41117f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 4112b17cd757SRob Clark if (obj->properties->properties[i] == property) { 4113c543188aSPaulo Zanoni obj->properties->values[i] = val; 4114c543188aSPaulo Zanoni return 0; 4115c543188aSPaulo Zanoni } 4116c543188aSPaulo Zanoni } 4117c543188aSPaulo Zanoni 4118c543188aSPaulo Zanoni return -EINVAL; 4119c543188aSPaulo Zanoni } 4120c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_set_value); 4121c543188aSPaulo Zanoni 4122c8e32cc1SDaniel Vetter /** 4123c8e32cc1SDaniel Vetter * drm_object_property_get_value - retrieve the value of a property 4124c8e32cc1SDaniel Vetter * @obj: drm mode object to get property value from 4125c8e32cc1SDaniel Vetter * @property: property to retrieve 4126c8e32cc1SDaniel Vetter * @val: storage for the property value 4127c8e32cc1SDaniel Vetter * 4128c8e32cc1SDaniel Vetter * This function retrieves the softare state of the given property for the given 4129c8e32cc1SDaniel Vetter * property. Since there is no driver callback to retrieve the current property 4130c8e32cc1SDaniel Vetter * value this might be out of sync with the hardware, depending upon the driver 4131c8e32cc1SDaniel Vetter * and property. 4132c8e32cc1SDaniel Vetter * 4133c8e32cc1SDaniel Vetter * Returns: 4134c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 4135c8e32cc1SDaniel Vetter */ 4136c543188aSPaulo Zanoni int drm_object_property_get_value(struct drm_mode_object *obj, 4137c543188aSPaulo Zanoni struct drm_property *property, uint64_t *val) 4138c543188aSPaulo Zanoni { 4139c543188aSPaulo Zanoni int i; 4140c543188aSPaulo Zanoni 414188a48e29SRob Clark /* read-only properties bypass atomic mechanism and still store 414288a48e29SRob Clark * their value in obj->properties->values[].. mostly to avoid 414388a48e29SRob Clark * having to deal w/ EDID and similar props in atomic paths: 414488a48e29SRob Clark */ 414588a48e29SRob Clark if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && 414688a48e29SRob Clark !(property->flags & DRM_MODE_PROP_IMMUTABLE)) 414788a48e29SRob Clark return drm_atomic_get_property(obj, property, val); 414888a48e29SRob Clark 41497f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 4150b17cd757SRob Clark if (obj->properties->properties[i] == property) { 4151c543188aSPaulo Zanoni *val = obj->properties->values[i]; 4152c543188aSPaulo Zanoni return 0; 4153c543188aSPaulo Zanoni } 4154c543188aSPaulo Zanoni } 4155c543188aSPaulo Zanoni 4156c543188aSPaulo Zanoni return -EINVAL; 4157c543188aSPaulo Zanoni } 4158c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_get_value); 4159c543188aSPaulo Zanoni 4160c8e32cc1SDaniel Vetter /** 41611a498633SDaniel Vetter * drm_mode_getproperty_ioctl - get the property metadata 4162c8e32cc1SDaniel Vetter * @dev: DRM device 4163c8e32cc1SDaniel Vetter * @data: ioctl data 4164c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4165c8e32cc1SDaniel Vetter * 41661a498633SDaniel Vetter * This function retrieves the metadata for a given property, like the different 41671a498633SDaniel Vetter * possible values for an enum property or the limits for a range property. 41681a498633SDaniel Vetter * 41691a498633SDaniel Vetter * Blob properties are special 4170c8e32cc1SDaniel Vetter * 4171c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4172c8e32cc1SDaniel Vetter * 4173c8e32cc1SDaniel Vetter * Returns: 41741a498633SDaniel Vetter * Zero on success, negative errno on failure. 4175c8e32cc1SDaniel Vetter */ 4176f453ba04SDave Airlie int drm_mode_getproperty_ioctl(struct drm_device *dev, 4177f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4178f453ba04SDave Airlie { 4179f453ba04SDave Airlie struct drm_mode_get_property *out_resp = data; 4180f453ba04SDave Airlie struct drm_property *property; 4181f453ba04SDave Airlie int enum_count = 0; 4182f453ba04SDave Airlie int value_count = 0; 4183f453ba04SDave Airlie int ret = 0, i; 4184f453ba04SDave Airlie int copied; 4185f453ba04SDave Airlie struct drm_property_enum *prop_enum; 4186f453ba04SDave Airlie struct drm_mode_property_enum __user *enum_ptr; 4187f453ba04SDave Airlie uint64_t __user *values_ptr; 4188f453ba04SDave Airlie 4189fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4190fb3b06c8SDave Airlie return -EINVAL; 4191fb3b06c8SDave Airlie 419284849903SDaniel Vetter drm_modeset_lock_all(dev); 4193a2b34e22SRob Clark property = drm_property_find(dev, out_resp->prop_id); 4194a2b34e22SRob Clark if (!property) { 4195f27657f2SVille Syrjälä ret = -ENOENT; 4196f453ba04SDave Airlie goto done; 4197f453ba04SDave Airlie } 4198f453ba04SDave Airlie 41995ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 42005ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 42013758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) 4202f453ba04SDave Airlie enum_count++; 4203f453ba04SDave Airlie } 4204f453ba04SDave Airlie 4205f453ba04SDave Airlie value_count = property->num_values; 4206f453ba04SDave Airlie 4207f453ba04SDave Airlie strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); 4208f453ba04SDave Airlie out_resp->name[DRM_PROP_NAME_LEN-1] = 0; 4209f453ba04SDave Airlie out_resp->flags = property->flags; 4210f453ba04SDave Airlie 4211f453ba04SDave Airlie if ((out_resp->count_values >= value_count) && value_count) { 421281f6c7f8SVille Syrjälä values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; 4213f453ba04SDave Airlie for (i = 0; i < value_count; i++) { 4214f453ba04SDave Airlie if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { 4215f453ba04SDave Airlie ret = -EFAULT; 4216f453ba04SDave Airlie goto done; 4217f453ba04SDave Airlie } 4218f453ba04SDave Airlie } 4219f453ba04SDave Airlie } 4220f453ba04SDave Airlie out_resp->count_values = value_count; 4221f453ba04SDave Airlie 42225ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 42235ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 4224f453ba04SDave Airlie if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { 4225f453ba04SDave Airlie copied = 0; 422681f6c7f8SVille Syrjälä enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; 42273758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 4228f453ba04SDave Airlie 4229f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { 4230f453ba04SDave Airlie ret = -EFAULT; 4231f453ba04SDave Airlie goto done; 4232f453ba04SDave Airlie } 4233f453ba04SDave Airlie 4234f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].name, 4235f453ba04SDave Airlie &prop_enum->name, DRM_PROP_NAME_LEN)) { 4236f453ba04SDave Airlie ret = -EFAULT; 4237f453ba04SDave Airlie goto done; 4238f453ba04SDave Airlie } 4239f453ba04SDave Airlie copied++; 4240f453ba04SDave Airlie } 4241f453ba04SDave Airlie } 4242f453ba04SDave Airlie out_resp->count_enum_blobs = enum_count; 4243f453ba04SDave Airlie } 4244f453ba04SDave Airlie 42453758b341SDaniel Vetter /* 42463758b341SDaniel Vetter * NOTE: The idea seems to have been to use this to read all the blob 42473758b341SDaniel Vetter * property values. But nothing ever added them to the corresponding 42483758b341SDaniel Vetter * list, userspace always used the special-purpose get_blob ioctl to 42493758b341SDaniel Vetter * read the value for a blob property. It also doesn't make a lot of 42503758b341SDaniel Vetter * sense to return values here when everything else is just metadata for 42513758b341SDaniel Vetter * the property itself. 42523758b341SDaniel Vetter */ 42533758b341SDaniel Vetter if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 42543758b341SDaniel Vetter out_resp->count_enum_blobs = 0; 4255f453ba04SDave Airlie done: 425684849903SDaniel Vetter drm_modeset_unlock_all(dev); 4257f453ba04SDave Airlie return ret; 4258f453ba04SDave Airlie } 4259f453ba04SDave Airlie 426099531d9bSDaniel Stone /** 426199531d9bSDaniel Stone * drm_property_create_blob - Create new blob property 426299531d9bSDaniel Stone * 426399531d9bSDaniel Stone * Creates a new blob property for a specified DRM device, optionally 426499531d9bSDaniel Stone * copying data. 426599531d9bSDaniel Stone * 426699531d9bSDaniel Stone * @dev: DRM device to create property for 426799531d9bSDaniel Stone * @length: Length to allocate for blob data 426899531d9bSDaniel Stone * @data: If specified, copies data into blob 426910e8cb7eSDaniel Stone * 427010e8cb7eSDaniel Stone * Returns: 427110e8cb7eSDaniel Stone * New blob property with a single reference on success, or an ERR_PTR 427210e8cb7eSDaniel Stone * value on failure. 427399531d9bSDaniel Stone */ 42746bcacf51SDaniel Stone struct drm_property_blob * 4275ecbbe59bSThierry Reding drm_property_create_blob(struct drm_device *dev, size_t length, 427612e6cecdSThierry Reding const void *data) 4277f453ba04SDave Airlie { 4278f453ba04SDave Airlie struct drm_property_blob *blob; 42796bfc56aaSVille Syrjälä int ret; 4280f453ba04SDave Airlie 42819ac0934bSDan Carpenter if (!length || length > ULONG_MAX - sizeof(struct drm_property_blob)) 428210e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 4283f453ba04SDave Airlie 4284f453ba04SDave Airlie blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); 4285f453ba04SDave Airlie if (!blob) 428610e8cb7eSDaniel Stone return ERR_PTR(-ENOMEM); 4287f453ba04SDave Airlie 4288e2f5d2eaSDaniel Stone /* This must be explicitly initialised, so we can safely call list_del 4289e2f5d2eaSDaniel Stone * on it in the removal handler, even if it isn't in a file list. */ 4290e2f5d2eaSDaniel Stone INIT_LIST_HEAD(&blob->head_file); 4291f453ba04SDave Airlie blob->length = length; 42926bcacf51SDaniel Stone blob->dev = dev; 4293f453ba04SDave Airlie 429499531d9bSDaniel Stone if (data) 4295f453ba04SDave Airlie memcpy(blob->data, data, length); 4296f453ba04SDave Airlie 42978fb6e7a5SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 42988fb6e7a5SDaniel Stone 42998fb6e7a5SDaniel Stone ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); 43008fb6e7a5SDaniel Stone if (ret) { 43018fb6e7a5SDaniel Stone kfree(blob); 43028fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 430310e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 43048fb6e7a5SDaniel Stone } 43058fb6e7a5SDaniel Stone 43066bcacf51SDaniel Stone kref_init(&blob->refcount); 43076bcacf51SDaniel Stone 4308e2f5d2eaSDaniel Stone list_add_tail(&blob->head_global, 4309e2f5d2eaSDaniel Stone &dev->mode_config.property_blob_list); 43108fb6e7a5SDaniel Stone 43118fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 43128fb6e7a5SDaniel Stone 4313f453ba04SDave Airlie return blob; 4314f453ba04SDave Airlie } 43156bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_create_blob); 4316f453ba04SDave Airlie 43176bcacf51SDaniel Stone /** 43186bcacf51SDaniel Stone * drm_property_free_blob - Blob property destructor 43196bcacf51SDaniel Stone * 43206bcacf51SDaniel Stone * Internal free function for blob properties; must not be used directly. 43216bcacf51SDaniel Stone * 4322f102c16eSDaniel Stone * @kref: Reference 43236bcacf51SDaniel Stone */ 43246bcacf51SDaniel Stone static void drm_property_free_blob(struct kref *kref) 4325f453ba04SDave Airlie { 43266bcacf51SDaniel Stone struct drm_property_blob *blob = 43276bcacf51SDaniel Stone container_of(kref, struct drm_property_blob, refcount); 43286bcacf51SDaniel Stone 43296bcacf51SDaniel Stone WARN_ON(!mutex_is_locked(&blob->dev->mode_config.blob_lock)); 43306bcacf51SDaniel Stone 4331e2f5d2eaSDaniel Stone list_del(&blob->head_global); 4332e2f5d2eaSDaniel Stone list_del(&blob->head_file); 43337c8f6d25SDave Airlie drm_mode_object_unregister(blob->dev, &blob->base); 43348fb6e7a5SDaniel Stone 4335f453ba04SDave Airlie kfree(blob); 4336f453ba04SDave Airlie } 4337f453ba04SDave Airlie 4338c8e32cc1SDaniel Vetter /** 43396bcacf51SDaniel Stone * drm_property_unreference_blob - Unreference a blob property 43406bcacf51SDaniel Stone * 43416bcacf51SDaniel Stone * Drop a reference on a blob property. May free the object. 43426bcacf51SDaniel Stone * 4343f102c16eSDaniel Stone * @blob: Pointer to blob property 43446bcacf51SDaniel Stone */ 43456bcacf51SDaniel Stone void drm_property_unreference_blob(struct drm_property_blob *blob) 43466bcacf51SDaniel Stone { 43476bcacf51SDaniel Stone struct drm_device *dev; 43486bcacf51SDaniel Stone 43496bcacf51SDaniel Stone if (!blob) 43506bcacf51SDaniel Stone return; 43516bcacf51SDaniel Stone 43526bcacf51SDaniel Stone dev = blob->dev; 43536bcacf51SDaniel Stone 43546bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 43556bcacf51SDaniel Stone 43566bcacf51SDaniel Stone if (kref_put_mutex(&blob->refcount, drm_property_free_blob, 43576bcacf51SDaniel Stone &dev->mode_config.blob_lock)) 43586bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 43596bcacf51SDaniel Stone else 43606bcacf51SDaniel Stone might_lock(&dev->mode_config.blob_lock); 43616bcacf51SDaniel Stone } 43626bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_unreference_blob); 43636bcacf51SDaniel Stone 43646bcacf51SDaniel Stone /** 43656bcacf51SDaniel Stone * drm_property_unreference_blob_locked - Unreference a blob property with blob_lock held 43666bcacf51SDaniel Stone * 43676bcacf51SDaniel Stone * Drop a reference on a blob property. May free the object. This must be 43686bcacf51SDaniel Stone * called with blob_lock held. 43696bcacf51SDaniel Stone * 4370f102c16eSDaniel Stone * @blob: Pointer to blob property 43716bcacf51SDaniel Stone */ 43726bcacf51SDaniel Stone static void drm_property_unreference_blob_locked(struct drm_property_blob *blob) 43736bcacf51SDaniel Stone { 43746bcacf51SDaniel Stone if (!blob) 43756bcacf51SDaniel Stone return; 43766bcacf51SDaniel Stone 43776bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 43786bcacf51SDaniel Stone 43796bcacf51SDaniel Stone kref_put(&blob->refcount, drm_property_free_blob); 43806bcacf51SDaniel Stone } 43816bcacf51SDaniel Stone 43826bcacf51SDaniel Stone /** 4383e2f5d2eaSDaniel Stone * drm_property_destroy_user_blobs - destroy all blobs created by this client 4384e2f5d2eaSDaniel Stone * @dev: DRM device 4385e2f5d2eaSDaniel Stone * @file_priv: destroy all blobs owned by this file handle 4386e2f5d2eaSDaniel Stone */ 4387e2f5d2eaSDaniel Stone void drm_property_destroy_user_blobs(struct drm_device *dev, 4388e2f5d2eaSDaniel Stone struct drm_file *file_priv) 4389e2f5d2eaSDaniel Stone { 4390e2f5d2eaSDaniel Stone struct drm_property_blob *blob, *bt; 4391e2f5d2eaSDaniel Stone 4392e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4393e2f5d2eaSDaniel Stone 4394e2f5d2eaSDaniel Stone list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { 4395e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4396e2f5d2eaSDaniel Stone drm_property_unreference_blob_locked(blob); 4397e2f5d2eaSDaniel Stone } 4398e2f5d2eaSDaniel Stone 4399e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4400e2f5d2eaSDaniel Stone } 4401e2f5d2eaSDaniel Stone 4402e2f5d2eaSDaniel Stone /** 44036bcacf51SDaniel Stone * drm_property_reference_blob - Take a reference on an existing property 44046bcacf51SDaniel Stone * 44056bcacf51SDaniel Stone * Take a new reference on an existing blob property. 44066bcacf51SDaniel Stone * 4407f102c16eSDaniel Stone * @blob: Pointer to blob property 44086bcacf51SDaniel Stone */ 44096bcacf51SDaniel Stone struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) 44106bcacf51SDaniel Stone { 44116bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 44126bcacf51SDaniel Stone kref_get(&blob->refcount); 44136bcacf51SDaniel Stone return blob; 44146bcacf51SDaniel Stone } 44156bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_reference_blob); 44166bcacf51SDaniel Stone 44176bcacf51SDaniel Stone /* 44186bcacf51SDaniel Stone * Like drm_property_lookup_blob, but does not return an additional reference. 44196bcacf51SDaniel Stone * Must be called with blob_lock held. 44206bcacf51SDaniel Stone */ 44216bcacf51SDaniel Stone static struct drm_property_blob *__drm_property_lookup_blob(struct drm_device *dev, 44226bcacf51SDaniel Stone uint32_t id) 44236bcacf51SDaniel Stone { 44246bcacf51SDaniel Stone struct drm_mode_object *obj = NULL; 44256bcacf51SDaniel Stone struct drm_property_blob *blob; 44266bcacf51SDaniel Stone 44276bcacf51SDaniel Stone WARN_ON(!mutex_is_locked(&dev->mode_config.blob_lock)); 44286bcacf51SDaniel Stone 44296bcacf51SDaniel Stone mutex_lock(&dev->mode_config.idr_mutex); 44306bcacf51SDaniel Stone obj = idr_find(&dev->mode_config.crtc_idr, id); 44316bcacf51SDaniel Stone if (!obj || (obj->type != DRM_MODE_OBJECT_BLOB) || (obj->id != id)) 44326bcacf51SDaniel Stone blob = NULL; 44336bcacf51SDaniel Stone else 44346bcacf51SDaniel Stone blob = obj_to_blob(obj); 44356bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.idr_mutex); 44366bcacf51SDaniel Stone 4437f453ba04SDave Airlie return blob; 4438f453ba04SDave Airlie } 4439f453ba04SDave Airlie 44406bcacf51SDaniel Stone /** 44416bcacf51SDaniel Stone * drm_property_lookup_blob - look up a blob property and take a reference 44426bcacf51SDaniel Stone * @dev: drm device 44436bcacf51SDaniel Stone * @id: id of the blob property 44446bcacf51SDaniel Stone * 44456bcacf51SDaniel Stone * If successful, this takes an additional reference to the blob property. 44466bcacf51SDaniel Stone * callers need to make sure to eventually unreference the returned property 44476bcacf51SDaniel Stone * again, using @drm_property_unreference_blob. 44486bcacf51SDaniel Stone */ 44496bcacf51SDaniel Stone struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, 44506bcacf51SDaniel Stone uint32_t id) 4451f453ba04SDave Airlie { 44526bcacf51SDaniel Stone struct drm_property_blob *blob; 44536bcacf51SDaniel Stone 44546bcacf51SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 44556bcacf51SDaniel Stone blob = __drm_property_lookup_blob(dev, id); 44566bcacf51SDaniel Stone if (blob) { 44576bcacf51SDaniel Stone if (!kref_get_unless_zero(&blob->refcount)) 44586bcacf51SDaniel Stone blob = NULL; 44596bcacf51SDaniel Stone } 44606bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 44616bcacf51SDaniel Stone 44626bcacf51SDaniel Stone return blob; 44636bcacf51SDaniel Stone } 44646bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_lookup_blob); 44656bcacf51SDaniel Stone 44666bcacf51SDaniel Stone /** 4467d2ed3436SDaniel Stone * drm_property_replace_global_blob - atomically replace existing blob property 4468d2ed3436SDaniel Stone * @dev: drm device 4469d2ed3436SDaniel Stone * @replace: location of blob property pointer to be replaced 4470d2ed3436SDaniel Stone * @length: length of data for new blob, or 0 for no data 4471d2ed3436SDaniel Stone * @data: content for new blob, or NULL for no data 4472d2ed3436SDaniel Stone * @obj_holds_id: optional object for property holding blob ID 4473d2ed3436SDaniel Stone * @prop_holds_id: optional property holding blob ID 4474d2ed3436SDaniel Stone * @return 0 on success or error on failure 4475d2ed3436SDaniel Stone * 4476d2ed3436SDaniel Stone * This function will atomically replace a global property in the blob list, 4477d2ed3436SDaniel Stone * optionally updating a property which holds the ID of that property. It is 4478d2ed3436SDaniel Stone * guaranteed to be atomic: no caller will be allowed to see intermediate 4479d2ed3436SDaniel Stone * results, and either the entire operation will succeed and clean up the 4480d2ed3436SDaniel Stone * previous property, or it will fail and the state will be unchanged. 4481d2ed3436SDaniel Stone * 4482d2ed3436SDaniel Stone * If length is 0 or data is NULL, no new blob will be created, and the holding 4483d2ed3436SDaniel Stone * property, if specified, will be set to 0. 4484d2ed3436SDaniel Stone * 4485d2ed3436SDaniel Stone * Access to the replace pointer is assumed to be protected by the caller, e.g. 4486d2ed3436SDaniel Stone * by holding the relevant modesetting object lock for its parent. 4487d2ed3436SDaniel Stone * 4488d2ed3436SDaniel Stone * For example, a drm_connector has a 'PATH' property, which contains the ID 4489d2ed3436SDaniel Stone * of a blob property with the value of the MST path information. Calling this 4490d2ed3436SDaniel Stone * function with replace pointing to the connector's path_blob_ptr, length and 4491d2ed3436SDaniel Stone * data set for the new path information, obj_holds_id set to the connector's 4492d2ed3436SDaniel Stone * base object, and prop_holds_id set to the path property name, will perform 4493d2ed3436SDaniel Stone * a completely atomic update. The access to path_blob_ptr is protected by the 4494d2ed3436SDaniel Stone * caller holding a lock on the connector. 4495d2ed3436SDaniel Stone */ 4496d2ed3436SDaniel Stone static int drm_property_replace_global_blob(struct drm_device *dev, 4497d2ed3436SDaniel Stone struct drm_property_blob **replace, 4498d2ed3436SDaniel Stone size_t length, 4499d2ed3436SDaniel Stone const void *data, 4500d2ed3436SDaniel Stone struct drm_mode_object *obj_holds_id, 4501d2ed3436SDaniel Stone struct drm_property *prop_holds_id) 4502d2ed3436SDaniel Stone { 4503d2ed3436SDaniel Stone struct drm_property_blob *new_blob = NULL; 4504d2ed3436SDaniel Stone struct drm_property_blob *old_blob = NULL; 4505d2ed3436SDaniel Stone int ret; 4506d2ed3436SDaniel Stone 4507d2ed3436SDaniel Stone WARN_ON(replace == NULL); 4508d2ed3436SDaniel Stone 4509d2ed3436SDaniel Stone old_blob = *replace; 4510d2ed3436SDaniel Stone 4511d2ed3436SDaniel Stone if (length && data) { 4512d2ed3436SDaniel Stone new_blob = drm_property_create_blob(dev, length, data); 451310e8cb7eSDaniel Stone if (IS_ERR(new_blob)) 451410e8cb7eSDaniel Stone return PTR_ERR(new_blob); 4515d2ed3436SDaniel Stone } 4516d2ed3436SDaniel Stone 4517d2ed3436SDaniel Stone /* This does not need to be synchronised with blob_lock, as the 4518d2ed3436SDaniel Stone * get_properties ioctl locks all modesetting objects, and 4519d2ed3436SDaniel Stone * obj_holds_id must be locked before calling here, so we cannot 4520d2ed3436SDaniel Stone * have its value out of sync with the list membership modified 4521d2ed3436SDaniel Stone * below under blob_lock. */ 4522d2ed3436SDaniel Stone if (obj_holds_id) { 4523d2ed3436SDaniel Stone ret = drm_object_property_set_value(obj_holds_id, 4524d2ed3436SDaniel Stone prop_holds_id, 4525d2ed3436SDaniel Stone new_blob ? 4526d2ed3436SDaniel Stone new_blob->base.id : 0); 4527d2ed3436SDaniel Stone if (ret != 0) 4528d2ed3436SDaniel Stone goto err_created; 4529d2ed3436SDaniel Stone } 4530d2ed3436SDaniel Stone 45316bcacf51SDaniel Stone drm_property_unreference_blob(old_blob); 4532d2ed3436SDaniel Stone *replace = new_blob; 4533d2ed3436SDaniel Stone 4534d2ed3436SDaniel Stone return 0; 4535d2ed3436SDaniel Stone 4536d2ed3436SDaniel Stone err_created: 45376bcacf51SDaniel Stone drm_property_unreference_blob(new_blob); 4538d2ed3436SDaniel Stone return ret; 4539f453ba04SDave Airlie } 4540f453ba04SDave Airlie 4541c8e32cc1SDaniel Vetter /** 4542c8e32cc1SDaniel Vetter * drm_mode_getblob_ioctl - get the contents of a blob property value 4543c8e32cc1SDaniel Vetter * @dev: DRM device 4544c8e32cc1SDaniel Vetter * @data: ioctl data 4545c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4546c8e32cc1SDaniel Vetter * 4547c8e32cc1SDaniel Vetter * This function retrieves the contents of a blob property. The value stored in 4548c8e32cc1SDaniel Vetter * an object's blob property is just a normal modeset object id. 4549c8e32cc1SDaniel Vetter * 4550c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4551c8e32cc1SDaniel Vetter * 4552c8e32cc1SDaniel Vetter * Returns: 45531a498633SDaniel Vetter * Zero on success, negative errno on failure. 4554c8e32cc1SDaniel Vetter */ 4555f453ba04SDave Airlie int drm_mode_getblob_ioctl(struct drm_device *dev, 4556f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4557f453ba04SDave Airlie { 4558f453ba04SDave Airlie struct drm_mode_get_blob *out_resp = data; 4559f453ba04SDave Airlie struct drm_property_blob *blob; 4560f453ba04SDave Airlie int ret = 0; 456181f6c7f8SVille Syrjälä void __user *blob_ptr; 4562f453ba04SDave Airlie 4563fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4564fb3b06c8SDave Airlie return -EINVAL; 4565fb3b06c8SDave Airlie 456684849903SDaniel Vetter drm_modeset_lock_all(dev); 45678fb6e7a5SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 45686bcacf51SDaniel Stone blob = __drm_property_lookup_blob(dev, out_resp->blob_id); 4569a2b34e22SRob Clark if (!blob) { 4570f27657f2SVille Syrjälä ret = -ENOENT; 4571f453ba04SDave Airlie goto done; 4572f453ba04SDave Airlie } 4573f453ba04SDave Airlie 4574f453ba04SDave Airlie if (out_resp->length == blob->length) { 457581f6c7f8SVille Syrjälä blob_ptr = (void __user *)(unsigned long)out_resp->data; 4576f453ba04SDave Airlie if (copy_to_user(blob_ptr, blob->data, blob->length)) { 4577f453ba04SDave Airlie ret = -EFAULT; 4578f453ba04SDave Airlie goto done; 4579f453ba04SDave Airlie } 4580f453ba04SDave Airlie } 4581f453ba04SDave Airlie out_resp->length = blob->length; 4582f453ba04SDave Airlie 4583f453ba04SDave Airlie done: 45848fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 458584849903SDaniel Vetter drm_modeset_unlock_all(dev); 4586f453ba04SDave Airlie return ret; 4587f453ba04SDave Airlie } 4588f453ba04SDave Airlie 4589cc7096fbSDave Airlie /** 4590e2f5d2eaSDaniel Stone * drm_mode_createblob_ioctl - create a new blob property 4591e2f5d2eaSDaniel Stone * @dev: DRM device 4592e2f5d2eaSDaniel Stone * @data: ioctl data 4593e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4594e2f5d2eaSDaniel Stone * 4595e2f5d2eaSDaniel Stone * This function creates a new blob property with user-defined values. In order 4596e2f5d2eaSDaniel Stone * to give us sensible validation and checking when creating, rather than at 4597e2f5d2eaSDaniel Stone * every potential use, we also require a type to be provided upfront. 4598e2f5d2eaSDaniel Stone * 4599e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4600e2f5d2eaSDaniel Stone * 4601e2f5d2eaSDaniel Stone * Returns: 4602e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4603e2f5d2eaSDaniel Stone */ 4604e2f5d2eaSDaniel Stone int drm_mode_createblob_ioctl(struct drm_device *dev, 4605e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4606e2f5d2eaSDaniel Stone { 4607e2f5d2eaSDaniel Stone struct drm_mode_create_blob *out_resp = data; 4608e2f5d2eaSDaniel Stone struct drm_property_blob *blob; 4609e2f5d2eaSDaniel Stone void __user *blob_ptr; 4610e2f5d2eaSDaniel Stone int ret = 0; 4611e2f5d2eaSDaniel Stone 4612e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4613e2f5d2eaSDaniel Stone return -EINVAL; 4614e2f5d2eaSDaniel Stone 4615e2f5d2eaSDaniel Stone blob = drm_property_create_blob(dev, out_resp->length, NULL); 4616e2f5d2eaSDaniel Stone if (IS_ERR(blob)) 4617e2f5d2eaSDaniel Stone return PTR_ERR(blob); 4618e2f5d2eaSDaniel Stone 4619e2f5d2eaSDaniel Stone blob_ptr = (void __user *)(unsigned long)out_resp->data; 4620e2f5d2eaSDaniel Stone if (copy_from_user(blob->data, blob_ptr, out_resp->length)) { 4621e2f5d2eaSDaniel Stone ret = -EFAULT; 4622e2f5d2eaSDaniel Stone goto out_blob; 4623e2f5d2eaSDaniel Stone } 4624e2f5d2eaSDaniel Stone 4625e2f5d2eaSDaniel Stone /* Dropping the lock between create_blob and our access here is safe 4626e2f5d2eaSDaniel Stone * as only the same file_priv can remove the blob; at this point, it is 4627e2f5d2eaSDaniel Stone * not associated with any file_priv. */ 4628e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4629e2f5d2eaSDaniel Stone out_resp->blob_id = blob->base.id; 46308731b269SManeet Singh list_add_tail(&blob->head_file, &file_priv->blobs); 4631e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4632e2f5d2eaSDaniel Stone 4633e2f5d2eaSDaniel Stone return 0; 4634e2f5d2eaSDaniel Stone 4635e2f5d2eaSDaniel Stone out_blob: 4636e2f5d2eaSDaniel Stone drm_property_unreference_blob(blob); 4637e2f5d2eaSDaniel Stone return ret; 4638e2f5d2eaSDaniel Stone } 4639e2f5d2eaSDaniel Stone 4640e2f5d2eaSDaniel Stone /** 4641e2f5d2eaSDaniel Stone * drm_mode_destroyblob_ioctl - destroy a user blob property 4642e2f5d2eaSDaniel Stone * @dev: DRM device 4643e2f5d2eaSDaniel Stone * @data: ioctl data 4644e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4645e2f5d2eaSDaniel Stone * 4646e2f5d2eaSDaniel Stone * Destroy an existing user-defined blob property. 4647e2f5d2eaSDaniel Stone * 4648e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4649e2f5d2eaSDaniel Stone * 4650e2f5d2eaSDaniel Stone * Returns: 4651e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4652e2f5d2eaSDaniel Stone */ 4653e2f5d2eaSDaniel Stone int drm_mode_destroyblob_ioctl(struct drm_device *dev, 4654e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4655e2f5d2eaSDaniel Stone { 4656e2f5d2eaSDaniel Stone struct drm_mode_destroy_blob *out_resp = data; 4657e2f5d2eaSDaniel Stone struct drm_property_blob *blob = NULL, *bt; 4658e2f5d2eaSDaniel Stone bool found = false; 4659e2f5d2eaSDaniel Stone int ret = 0; 4660e2f5d2eaSDaniel Stone 4661e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4662e2f5d2eaSDaniel Stone return -EINVAL; 4663e2f5d2eaSDaniel Stone 4664e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4665e2f5d2eaSDaniel Stone blob = __drm_property_lookup_blob(dev, out_resp->blob_id); 4666e2f5d2eaSDaniel Stone if (!blob) { 4667e2f5d2eaSDaniel Stone ret = -ENOENT; 4668e2f5d2eaSDaniel Stone goto err; 4669e2f5d2eaSDaniel Stone } 4670e2f5d2eaSDaniel Stone 4671e2f5d2eaSDaniel Stone /* Ensure the property was actually created by this user. */ 4672e2f5d2eaSDaniel Stone list_for_each_entry(bt, &file_priv->blobs, head_file) { 4673e2f5d2eaSDaniel Stone if (bt == blob) { 4674e2f5d2eaSDaniel Stone found = true; 4675e2f5d2eaSDaniel Stone break; 4676e2f5d2eaSDaniel Stone } 4677e2f5d2eaSDaniel Stone } 4678e2f5d2eaSDaniel Stone 4679e2f5d2eaSDaniel Stone if (!found) { 4680e2f5d2eaSDaniel Stone ret = -EPERM; 4681e2f5d2eaSDaniel Stone goto err; 4682e2f5d2eaSDaniel Stone } 4683e2f5d2eaSDaniel Stone 4684e2f5d2eaSDaniel Stone /* We must drop head_file here, because we may not be the last 4685e2f5d2eaSDaniel Stone * reference on the blob. */ 4686e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4687e2f5d2eaSDaniel Stone drm_property_unreference_blob_locked(blob); 4688e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4689e2f5d2eaSDaniel Stone 4690e2f5d2eaSDaniel Stone return 0; 4691e2f5d2eaSDaniel Stone 4692e2f5d2eaSDaniel Stone err: 4693e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4694e2f5d2eaSDaniel Stone return ret; 4695e2f5d2eaSDaniel Stone } 4696e2f5d2eaSDaniel Stone 4697e2f5d2eaSDaniel Stone /** 4698cc7096fbSDave Airlie * drm_mode_connector_set_path_property - set tile property on connector 4699cc7096fbSDave Airlie * @connector: connector to set property on. 4700d2ed3436SDaniel Stone * @path: path to use for property; must not be NULL. 4701cc7096fbSDave Airlie * 4702cc7096fbSDave Airlie * This creates a property to expose to userspace to specify a 4703cc7096fbSDave Airlie * connector path. This is mainly used for DisplayPort MST where 4704cc7096fbSDave Airlie * connectors have a topology and we want to allow userspace to give 4705cc7096fbSDave Airlie * them more meaningful names. 4706cc7096fbSDave Airlie * 4707cc7096fbSDave Airlie * Returns: 47081a498633SDaniel Vetter * Zero on success, negative errno on failure. 4709cc7096fbSDave Airlie */ 471043aba7ebSDave Airlie int drm_mode_connector_set_path_property(struct drm_connector *connector, 471112e6cecdSThierry Reding const char *path) 471243aba7ebSDave Airlie { 471343aba7ebSDave Airlie struct drm_device *dev = connector->dev; 4714ecbbe59bSThierry Reding int ret; 471543aba7ebSDave Airlie 4716d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4717d2ed3436SDaniel Stone &connector->path_blob_ptr, 4718d2ed3436SDaniel Stone strlen(path) + 1, 4719d2ed3436SDaniel Stone path, 4720d2ed3436SDaniel Stone &connector->base, 4721d2ed3436SDaniel Stone dev->mode_config.path_property); 472243aba7ebSDave Airlie return ret; 472343aba7ebSDave Airlie } 472443aba7ebSDave Airlie EXPORT_SYMBOL(drm_mode_connector_set_path_property); 472543aba7ebSDave Airlie 4726c8e32cc1SDaniel Vetter /** 47276f134d7bSDave Airlie * drm_mode_connector_set_tile_property - set tile property on connector 47286f134d7bSDave Airlie * @connector: connector to set property on. 47296f134d7bSDave Airlie * 47306f134d7bSDave Airlie * This looks up the tile information for a connector, and creates a 47316f134d7bSDave Airlie * property for userspace to parse if it exists. The property is of 47326f134d7bSDave Airlie * the form of 8 integers using ':' as a separator. 47336f134d7bSDave Airlie * 47346f134d7bSDave Airlie * Returns: 47356f134d7bSDave Airlie * Zero on success, errno on failure. 47366f134d7bSDave Airlie */ 47376f134d7bSDave Airlie int drm_mode_connector_set_tile_property(struct drm_connector *connector) 47386f134d7bSDave Airlie { 47396f134d7bSDave Airlie struct drm_device *dev = connector->dev; 47406f134d7bSDave Airlie char tile[256]; 4741d2ed3436SDaniel Stone int ret; 47426f134d7bSDave Airlie 47436f134d7bSDave Airlie if (!connector->has_tile) { 4744d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4745d2ed3436SDaniel Stone &connector->tile_blob_ptr, 4746d2ed3436SDaniel Stone 0, 4747d2ed3436SDaniel Stone NULL, 4748d2ed3436SDaniel Stone &connector->base, 4749d2ed3436SDaniel Stone dev->mode_config.tile_property); 47506f134d7bSDave Airlie return ret; 47516f134d7bSDave Airlie } 47526f134d7bSDave Airlie 47536f134d7bSDave Airlie snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", 47546f134d7bSDave Airlie connector->tile_group->id, connector->tile_is_single_monitor, 47556f134d7bSDave Airlie connector->num_h_tile, connector->num_v_tile, 47566f134d7bSDave Airlie connector->tile_h_loc, connector->tile_v_loc, 47576f134d7bSDave Airlie connector->tile_h_size, connector->tile_v_size); 47586f134d7bSDave Airlie 4759d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4760d2ed3436SDaniel Stone &connector->tile_blob_ptr, 4761d2ed3436SDaniel Stone strlen(tile) + 1, 4762d2ed3436SDaniel Stone tile, 4763d2ed3436SDaniel Stone &connector->base, 4764d2ed3436SDaniel Stone dev->mode_config.tile_property); 47656f134d7bSDave Airlie return ret; 47666f134d7bSDave Airlie } 47676f134d7bSDave Airlie EXPORT_SYMBOL(drm_mode_connector_set_tile_property); 47686f134d7bSDave Airlie 47696f134d7bSDave Airlie /** 4770c8e32cc1SDaniel Vetter * drm_mode_connector_update_edid_property - update the edid property of a connector 4771c8e32cc1SDaniel Vetter * @connector: drm connector 4772c8e32cc1SDaniel Vetter * @edid: new value of the edid property 4773c8e32cc1SDaniel Vetter * 4774c8e32cc1SDaniel Vetter * This function creates a new blob modeset object and assigns its id to the 4775c8e32cc1SDaniel Vetter * connector's edid property. 4776c8e32cc1SDaniel Vetter * 4777c8e32cc1SDaniel Vetter * Returns: 47781a498633SDaniel Vetter * Zero on success, negative errno on failure. 4779c8e32cc1SDaniel Vetter */ 4780f453ba04SDave Airlie int drm_mode_connector_update_edid_property(struct drm_connector *connector, 478112e6cecdSThierry Reding const struct edid *edid) 4782f453ba04SDave Airlie { 4783f453ba04SDave Airlie struct drm_device *dev = connector->dev; 4784d2ed3436SDaniel Stone size_t size = 0; 4785ecbbe59bSThierry Reding int ret; 4786f453ba04SDave Airlie 47874cf2b281SThomas Wood /* ignore requests to set edid when overridden */ 47884cf2b281SThomas Wood if (connector->override_edid) 47894cf2b281SThomas Wood return 0; 47904cf2b281SThomas Wood 4791d2ed3436SDaniel Stone if (edid) 4792e24ff467SShixin Zeng size = EDID_LENGTH * (1 + edid->extensions); 4793f453ba04SDave Airlie 4794d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4795d2ed3436SDaniel Stone &connector->edid_blob_ptr, 4796d2ed3436SDaniel Stone size, 4797d2ed3436SDaniel Stone edid, 4798d2ed3436SDaniel Stone &connector->base, 4799d2ed3436SDaniel Stone dev->mode_config.edid_property); 4800f453ba04SDave Airlie return ret; 4801f453ba04SDave Airlie } 4802f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_connector_update_edid_property); 4803f453ba04SDave Airlie 48043843e71fSRob Clark /* Some properties could refer to dynamic refcnt'd objects, or things that 48053843e71fSRob Clark * need special locking to handle lifetime issues (ie. to ensure the prop 48063843e71fSRob Clark * value doesn't become invalid part way through the property update due to 48073843e71fSRob Clark * race). The value returned by reference via 'obj' should be passed back 48083843e71fSRob Clark * to drm_property_change_valid_put() after the property is set (and the 48093843e71fSRob Clark * object to which the property is attached has a chance to take it's own 48103843e71fSRob Clark * reference). 48113843e71fSRob Clark */ 4812d34f20d6SRob Clark bool drm_property_change_valid_get(struct drm_property *property, 48133843e71fSRob Clark uint64_t value, struct drm_mode_object **ref) 481426a34815SPaulo Zanoni { 48152ca651d1SThierry Reding int i; 48162ca651d1SThierry Reding 481726a34815SPaulo Zanoni if (property->flags & DRM_MODE_PROP_IMMUTABLE) 481826a34815SPaulo Zanoni return false; 48195ea22f24SRob Clark 48203843e71fSRob Clark *ref = NULL; 48213843e71fSRob Clark 48225ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { 482326a34815SPaulo Zanoni if (value < property->values[0] || value > property->values[1]) 482426a34815SPaulo Zanoni return false; 482526a34815SPaulo Zanoni return true; 4826ebc44cf3SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { 4827ebc44cf3SRob Clark int64_t svalue = U642I64(value); 48284dfd909fSThierry Reding 4829ebc44cf3SRob Clark if (svalue < U642I64(property->values[0]) || 4830ebc44cf3SRob Clark svalue > U642I64(property->values[1])) 4831ebc44cf3SRob Clark return false; 4832ebc44cf3SRob Clark return true; 48335ea22f24SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 4834592c20eeSVille Syrjälä uint64_t valid_mask = 0; 48354dfd909fSThierry Reding 483649e27545SRob Clark for (i = 0; i < property->num_values; i++) 483749e27545SRob Clark valid_mask |= (1ULL << property->values[i]); 483849e27545SRob Clark return !(value & ~valid_mask); 48395ea22f24SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { 48406bcacf51SDaniel Stone struct drm_property_blob *blob; 48416bcacf51SDaniel Stone 48426bcacf51SDaniel Stone if (value == 0) 4843c4a56750SVille Syrjälä return true; 48446bcacf51SDaniel Stone 48456bcacf51SDaniel Stone blob = drm_property_lookup_blob(property->dev, value); 48466bcacf51SDaniel Stone if (blob) { 48476bcacf51SDaniel Stone *ref = &blob->base; 48486bcacf51SDaniel Stone return true; 48496bcacf51SDaniel Stone } else { 48506bcacf51SDaniel Stone return false; 48516bcacf51SDaniel Stone } 485298f75de4SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { 485398f75de4SRob Clark /* a zero value for an object property translates to null: */ 485498f75de4SRob Clark if (value == 0) 485598f75de4SRob Clark return true; 48563843e71fSRob Clark 48573843e71fSRob Clark /* handle refcnt'd objects specially: */ 48583843e71fSRob Clark if (property->values[0] == DRM_MODE_OBJECT_FB) { 48593843e71fSRob Clark struct drm_framebuffer *fb; 48603843e71fSRob Clark fb = drm_framebuffer_lookup(property->dev, value); 48613843e71fSRob Clark if (fb) { 48623843e71fSRob Clark *ref = &fb->base; 48633843e71fSRob Clark return true; 48643843e71fSRob Clark } else { 48653843e71fSRob Clark return false; 48663843e71fSRob Clark } 48673843e71fSRob Clark } else { 48683843e71fSRob Clark return _object_find(property->dev, value, property->values[0]) != NULL; 48693843e71fSRob Clark } 48702ca651d1SThierry Reding } 48712ca651d1SThierry Reding 487226a34815SPaulo Zanoni for (i = 0; i < property->num_values; i++) 487326a34815SPaulo Zanoni if (property->values[i] == value) 487426a34815SPaulo Zanoni return true; 487526a34815SPaulo Zanoni return false; 487626a34815SPaulo Zanoni } 487726a34815SPaulo Zanoni 4878d34f20d6SRob Clark void drm_property_change_valid_put(struct drm_property *property, 48793843e71fSRob Clark struct drm_mode_object *ref) 48803843e71fSRob Clark { 48813843e71fSRob Clark if (!ref) 48823843e71fSRob Clark return; 48833843e71fSRob Clark 48843843e71fSRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { 48853843e71fSRob Clark if (property->values[0] == DRM_MODE_OBJECT_FB) 48863843e71fSRob Clark drm_framebuffer_unreference(obj_to_fb(ref)); 4887da9b2a38SDaniel Stone } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 4888da9b2a38SDaniel Stone drm_property_unreference_blob(obj_to_blob(ref)); 48893843e71fSRob Clark } 48903843e71fSRob Clark 4891c8e32cc1SDaniel Vetter /** 4892c8e32cc1SDaniel Vetter * drm_mode_connector_property_set_ioctl - set the current value of a connector property 4893c8e32cc1SDaniel Vetter * @dev: DRM device 4894c8e32cc1SDaniel Vetter * @data: ioctl data 4895c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4896c8e32cc1SDaniel Vetter * 4897c8e32cc1SDaniel Vetter * This function sets the current value for a connectors's property. It also 4898c8e32cc1SDaniel Vetter * calls into a driver's ->set_property callback to update the hardware state 4899c8e32cc1SDaniel Vetter * 4900c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4901c8e32cc1SDaniel Vetter * 4902c8e32cc1SDaniel Vetter * Returns: 49031a498633SDaniel Vetter * Zero on success, negative errno on failure. 4904c8e32cc1SDaniel Vetter */ 4905f453ba04SDave Airlie int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 4906f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4907f453ba04SDave Airlie { 49080057d8ddSPaulo Zanoni struct drm_mode_connector_set_property *conn_set_prop = data; 49090057d8ddSPaulo Zanoni struct drm_mode_obj_set_property obj_set_prop = { 49100057d8ddSPaulo Zanoni .value = conn_set_prop->value, 49110057d8ddSPaulo Zanoni .prop_id = conn_set_prop->prop_id, 49120057d8ddSPaulo Zanoni .obj_id = conn_set_prop->connector_id, 49130057d8ddSPaulo Zanoni .obj_type = DRM_MODE_OBJECT_CONNECTOR 49140057d8ddSPaulo Zanoni }; 4915f453ba04SDave Airlie 49160057d8ddSPaulo Zanoni /* It does all the locking and checking we need */ 49170057d8ddSPaulo Zanoni return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); 4918f453ba04SDave Airlie } 4919f453ba04SDave Airlie 4920c543188aSPaulo Zanoni static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, 4921c543188aSPaulo Zanoni struct drm_property *property, 4922c543188aSPaulo Zanoni uint64_t value) 4923c543188aSPaulo Zanoni { 4924c543188aSPaulo Zanoni int ret = -EINVAL; 4925c543188aSPaulo Zanoni struct drm_connector *connector = obj_to_connector(obj); 4926c543188aSPaulo Zanoni 4927c543188aSPaulo Zanoni /* Do DPMS ourselves */ 4928c543188aSPaulo Zanoni if (property == connector->dev->mode_config.dpms_property) { 49299a69a9acSMaarten Lankhorst ret = (*connector->funcs->dpms)(connector, (int)value); 4930c543188aSPaulo Zanoni } else if (connector->funcs->set_property) 4931c543188aSPaulo Zanoni ret = connector->funcs->set_property(connector, property, value); 4932c543188aSPaulo Zanoni 4933c543188aSPaulo Zanoni /* store the property value if successful */ 4934c543188aSPaulo Zanoni if (!ret) 493558495563SRob Clark drm_object_property_set_value(&connector->base, property, value); 4936c543188aSPaulo Zanoni return ret; 4937c543188aSPaulo Zanoni } 4938c543188aSPaulo Zanoni 4939bffd9de0SPaulo Zanoni static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, 4940bffd9de0SPaulo Zanoni struct drm_property *property, 4941bffd9de0SPaulo Zanoni uint64_t value) 4942bffd9de0SPaulo Zanoni { 4943bffd9de0SPaulo Zanoni int ret = -EINVAL; 4944bffd9de0SPaulo Zanoni struct drm_crtc *crtc = obj_to_crtc(obj); 4945bffd9de0SPaulo Zanoni 4946bffd9de0SPaulo Zanoni if (crtc->funcs->set_property) 4947bffd9de0SPaulo Zanoni ret = crtc->funcs->set_property(crtc, property, value); 4948bffd9de0SPaulo Zanoni if (!ret) 4949bffd9de0SPaulo Zanoni drm_object_property_set_value(obj, property, value); 4950bffd9de0SPaulo Zanoni 4951bffd9de0SPaulo Zanoni return ret; 4952bffd9de0SPaulo Zanoni } 4953bffd9de0SPaulo Zanoni 49543a5f87c2SThomas Wood /** 49553a5f87c2SThomas Wood * drm_mode_plane_set_obj_prop - set the value of a property 49563a5f87c2SThomas Wood * @plane: drm plane object to set property value for 49573a5f87c2SThomas Wood * @property: property to set 49583a5f87c2SThomas Wood * @value: value the property should be set to 49593a5f87c2SThomas Wood * 49603a5f87c2SThomas Wood * This functions sets a given property on a given plane object. This function 49613a5f87c2SThomas Wood * calls the driver's ->set_property callback and changes the software state of 49623a5f87c2SThomas Wood * the property if the callback succeeds. 49633a5f87c2SThomas Wood * 49643a5f87c2SThomas Wood * Returns: 49653a5f87c2SThomas Wood * Zero on success, error code on failure. 49663a5f87c2SThomas Wood */ 49673a5f87c2SThomas Wood int drm_mode_plane_set_obj_prop(struct drm_plane *plane, 49684d93914aSRob Clark struct drm_property *property, 49694d93914aSRob Clark uint64_t value) 49704d93914aSRob Clark { 49714d93914aSRob Clark int ret = -EINVAL; 49723a5f87c2SThomas Wood struct drm_mode_object *obj = &plane->base; 49734d93914aSRob Clark 49744d93914aSRob Clark if (plane->funcs->set_property) 49754d93914aSRob Clark ret = plane->funcs->set_property(plane, property, value); 49764d93914aSRob Clark if (!ret) 49774d93914aSRob Clark drm_object_property_set_value(obj, property, value); 49784d93914aSRob Clark 49794d93914aSRob Clark return ret; 49804d93914aSRob Clark } 49813a5f87c2SThomas Wood EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); 49824d93914aSRob Clark 4983c8e32cc1SDaniel Vetter /** 49841a498633SDaniel Vetter * drm_mode_obj_get_properties_ioctl - get the current value of a object's property 4985c8e32cc1SDaniel Vetter * @dev: DRM device 4986c8e32cc1SDaniel Vetter * @data: ioctl data 4987c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4988c8e32cc1SDaniel Vetter * 4989c8e32cc1SDaniel Vetter * This function retrieves the current value for an object's property. Compared 4990c8e32cc1SDaniel Vetter * to the connector specific ioctl this one is extended to also work on crtc and 4991c8e32cc1SDaniel Vetter * plane objects. 4992c8e32cc1SDaniel Vetter * 4993c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4994c8e32cc1SDaniel Vetter * 4995c8e32cc1SDaniel Vetter * Returns: 49961a498633SDaniel Vetter * Zero on success, negative errno on failure. 4997c8e32cc1SDaniel Vetter */ 4998c543188aSPaulo Zanoni int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 4999c543188aSPaulo Zanoni struct drm_file *file_priv) 5000c543188aSPaulo Zanoni { 5001c543188aSPaulo Zanoni struct drm_mode_obj_get_properties *arg = data; 5002c543188aSPaulo Zanoni struct drm_mode_object *obj; 5003c543188aSPaulo Zanoni int ret = 0; 5004c543188aSPaulo Zanoni 5005c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5006c543188aSPaulo Zanoni return -EINVAL; 5007c543188aSPaulo Zanoni 500884849903SDaniel Vetter drm_modeset_lock_all(dev); 5009c543188aSPaulo Zanoni 5010c543188aSPaulo Zanoni obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 5011c543188aSPaulo Zanoni if (!obj) { 5012f27657f2SVille Syrjälä ret = -ENOENT; 5013c543188aSPaulo Zanoni goto out; 5014c543188aSPaulo Zanoni } 5015c543188aSPaulo Zanoni if (!obj->properties) { 5016c543188aSPaulo Zanoni ret = -EINVAL; 5017c543188aSPaulo Zanoni goto out; 5018c543188aSPaulo Zanoni } 5019c543188aSPaulo Zanoni 502088a48e29SRob Clark ret = get_properties(obj, file_priv->atomic, 502195cbf110SRob Clark (uint32_t __user *)(unsigned long)(arg->props_ptr), 502295cbf110SRob Clark (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), 502395cbf110SRob Clark &arg->count_props); 5024c543188aSPaulo Zanoni 5025c543188aSPaulo Zanoni out: 502684849903SDaniel Vetter drm_modeset_unlock_all(dev); 5027c543188aSPaulo Zanoni return ret; 5028c543188aSPaulo Zanoni } 5029c543188aSPaulo Zanoni 5030c8e32cc1SDaniel Vetter /** 5031c8e32cc1SDaniel Vetter * drm_mode_obj_set_property_ioctl - set the current value of an object's property 5032c8e32cc1SDaniel Vetter * @dev: DRM device 5033c8e32cc1SDaniel Vetter * @data: ioctl data 5034c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5035c8e32cc1SDaniel Vetter * 5036c8e32cc1SDaniel Vetter * This function sets the current value for an object's property. It also calls 5037c8e32cc1SDaniel Vetter * into a driver's ->set_property callback to update the hardware state. 5038c8e32cc1SDaniel Vetter * Compared to the connector specific ioctl this one is extended to also work on 5039c8e32cc1SDaniel Vetter * crtc and plane objects. 5040c8e32cc1SDaniel Vetter * 5041c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5042c8e32cc1SDaniel Vetter * 5043c8e32cc1SDaniel Vetter * Returns: 50441a498633SDaniel Vetter * Zero on success, negative errno on failure. 5045c8e32cc1SDaniel Vetter */ 5046c543188aSPaulo Zanoni int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 5047c543188aSPaulo Zanoni struct drm_file *file_priv) 5048c543188aSPaulo Zanoni { 5049c543188aSPaulo Zanoni struct drm_mode_obj_set_property *arg = data; 5050c543188aSPaulo Zanoni struct drm_mode_object *arg_obj; 5051c543188aSPaulo Zanoni struct drm_mode_object *prop_obj; 5052c543188aSPaulo Zanoni struct drm_property *property; 50533843e71fSRob Clark int i, ret = -EINVAL; 50543843e71fSRob Clark struct drm_mode_object *ref; 5055c543188aSPaulo Zanoni 5056c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5057c543188aSPaulo Zanoni return -EINVAL; 5058c543188aSPaulo Zanoni 505984849903SDaniel Vetter drm_modeset_lock_all(dev); 5060c543188aSPaulo Zanoni 5061c543188aSPaulo Zanoni arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 5062f27657f2SVille Syrjälä if (!arg_obj) { 5063f27657f2SVille Syrjälä ret = -ENOENT; 5064c543188aSPaulo Zanoni goto out; 5065f27657f2SVille Syrjälä } 5066c543188aSPaulo Zanoni if (!arg_obj->properties) 5067c543188aSPaulo Zanoni goto out; 5068c543188aSPaulo Zanoni 50697f88a9beSPaulo Zanoni for (i = 0; i < arg_obj->properties->count; i++) 5070b17cd757SRob Clark if (arg_obj->properties->properties[i]->base.id == arg->prop_id) 5071c543188aSPaulo Zanoni break; 5072c543188aSPaulo Zanoni 50737f88a9beSPaulo Zanoni if (i == arg_obj->properties->count) 5074c543188aSPaulo Zanoni goto out; 5075c543188aSPaulo Zanoni 5076c543188aSPaulo Zanoni prop_obj = drm_mode_object_find(dev, arg->prop_id, 5077c543188aSPaulo Zanoni DRM_MODE_OBJECT_PROPERTY); 5078f27657f2SVille Syrjälä if (!prop_obj) { 5079f27657f2SVille Syrjälä ret = -ENOENT; 5080c543188aSPaulo Zanoni goto out; 5081f27657f2SVille Syrjälä } 5082c543188aSPaulo Zanoni property = obj_to_property(prop_obj); 5083c543188aSPaulo Zanoni 50843843e71fSRob Clark if (!drm_property_change_valid_get(property, arg->value, &ref)) 5085c543188aSPaulo Zanoni goto out; 5086c543188aSPaulo Zanoni 5087c543188aSPaulo Zanoni switch (arg_obj->type) { 5088c543188aSPaulo Zanoni case DRM_MODE_OBJECT_CONNECTOR: 5089c543188aSPaulo Zanoni ret = drm_mode_connector_set_obj_prop(arg_obj, property, 5090c543188aSPaulo Zanoni arg->value); 5091c543188aSPaulo Zanoni break; 5092bffd9de0SPaulo Zanoni case DRM_MODE_OBJECT_CRTC: 5093bffd9de0SPaulo Zanoni ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); 5094bffd9de0SPaulo Zanoni break; 50954d93914aSRob Clark case DRM_MODE_OBJECT_PLANE: 50963a5f87c2SThomas Wood ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), 50973a5f87c2SThomas Wood property, arg->value); 50984d93914aSRob Clark break; 5099c543188aSPaulo Zanoni } 5100c543188aSPaulo Zanoni 51013843e71fSRob Clark drm_property_change_valid_put(property, ref); 51023843e71fSRob Clark 5103c543188aSPaulo Zanoni out: 510484849903SDaniel Vetter drm_modeset_unlock_all(dev); 5105c543188aSPaulo Zanoni return ret; 5106c543188aSPaulo Zanoni } 5107c543188aSPaulo Zanoni 5108c8e32cc1SDaniel Vetter /** 5109c8e32cc1SDaniel Vetter * drm_mode_connector_attach_encoder - attach a connector to an encoder 5110c8e32cc1SDaniel Vetter * @connector: connector to attach 5111c8e32cc1SDaniel Vetter * @encoder: encoder to attach @connector to 5112c8e32cc1SDaniel Vetter * 5113c8e32cc1SDaniel Vetter * This function links up a connector to an encoder. Note that the routing 5114c8e32cc1SDaniel Vetter * restrictions between encoders and crtcs are exposed to userspace through the 5115c8e32cc1SDaniel Vetter * possible_clones and possible_crtcs bitmasks. 5116c8e32cc1SDaniel Vetter * 5117c8e32cc1SDaniel Vetter * Returns: 51181a498633SDaniel Vetter * Zero on success, negative errno on failure. 5119c8e32cc1SDaniel Vetter */ 5120f453ba04SDave Airlie int drm_mode_connector_attach_encoder(struct drm_connector *connector, 5121f453ba04SDave Airlie struct drm_encoder *encoder) 5122f453ba04SDave Airlie { 5123f453ba04SDave Airlie int i; 5124f453ba04SDave Airlie 5125eb47fe80SThierry Reding /* 5126eb47fe80SThierry Reding * In the past, drivers have attempted to model the static association 5127eb47fe80SThierry Reding * of connector to encoder in simple connector/encoder devices using a 5128eb47fe80SThierry Reding * direct assignment of connector->encoder = encoder. This connection 5129eb47fe80SThierry Reding * is a logical one and the responsibility of the core, so drivers are 5130eb47fe80SThierry Reding * expected not to mess with this. 5131eb47fe80SThierry Reding * 5132eb47fe80SThierry Reding * Note that the error return should've been enough here, but a large 5133eb47fe80SThierry Reding * majority of drivers ignores the return value, so add in a big WARN 5134eb47fe80SThierry Reding * to get people's attention. 5135eb47fe80SThierry Reding */ 5136eb47fe80SThierry Reding if (WARN_ON(connector->encoder)) 5137eb47fe80SThierry Reding return -EINVAL; 5138eb47fe80SThierry Reding 5139f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 5140f453ba04SDave Airlie if (connector->encoder_ids[i] == 0) { 5141f453ba04SDave Airlie connector->encoder_ids[i] = encoder->base.id; 5142f453ba04SDave Airlie return 0; 5143f453ba04SDave Airlie } 5144f453ba04SDave Airlie } 5145f453ba04SDave Airlie return -ENOMEM; 5146f453ba04SDave Airlie } 5147f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_connector_attach_encoder); 5148f453ba04SDave Airlie 5149c8e32cc1SDaniel Vetter /** 5150c8e32cc1SDaniel Vetter * drm_mode_crtc_set_gamma_size - set the gamma table size 5151c8e32cc1SDaniel Vetter * @crtc: CRTC to set the gamma table size for 5152c8e32cc1SDaniel Vetter * @gamma_size: size of the gamma table 5153c8e32cc1SDaniel Vetter * 5154c8e32cc1SDaniel Vetter * Drivers which support gamma tables should set this to the supported gamma 5155c8e32cc1SDaniel Vetter * table size when initializing the CRTC. Currently the drm core only supports a 5156c8e32cc1SDaniel Vetter * fixed gamma table size. 5157c8e32cc1SDaniel Vetter * 5158c8e32cc1SDaniel Vetter * Returns: 51591a498633SDaniel Vetter * Zero on success, negative errno on failure. 5160c8e32cc1SDaniel Vetter */ 51614cae5b84SSascha Hauer int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 5162f453ba04SDave Airlie int gamma_size) 5163f453ba04SDave Airlie { 5164f453ba04SDave Airlie crtc->gamma_size = gamma_size; 5165f453ba04SDave Airlie 5166bd3f0ff9SThierry Reding crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, 5167bd3f0ff9SThierry Reding GFP_KERNEL); 5168f453ba04SDave Airlie if (!crtc->gamma_store) { 5169f453ba04SDave Airlie crtc->gamma_size = 0; 51704cae5b84SSascha Hauer return -ENOMEM; 5171f453ba04SDave Airlie } 5172f453ba04SDave Airlie 51734cae5b84SSascha Hauer return 0; 5174f453ba04SDave Airlie } 5175f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); 5176f453ba04SDave Airlie 5177c8e32cc1SDaniel Vetter /** 5178c8e32cc1SDaniel Vetter * drm_mode_gamma_set_ioctl - set the gamma table 5179c8e32cc1SDaniel Vetter * @dev: DRM device 5180c8e32cc1SDaniel Vetter * @data: ioctl data 5181c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5182c8e32cc1SDaniel Vetter * 5183c8e32cc1SDaniel Vetter * Set the gamma table of a CRTC to the one passed in by the user. Userspace can 5184c8e32cc1SDaniel Vetter * inquire the required gamma table size through drm_mode_gamma_get_ioctl. 5185c8e32cc1SDaniel Vetter * 5186c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5187c8e32cc1SDaniel Vetter * 5188c8e32cc1SDaniel Vetter * Returns: 51891a498633SDaniel Vetter * Zero on success, negative errno on failure. 5190c8e32cc1SDaniel Vetter */ 5191f453ba04SDave Airlie int drm_mode_gamma_set_ioctl(struct drm_device *dev, 5192f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5193f453ba04SDave Airlie { 5194f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5195f453ba04SDave Airlie struct drm_crtc *crtc; 5196f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5197f453ba04SDave Airlie int size; 5198f453ba04SDave Airlie int ret = 0; 5199f453ba04SDave Airlie 5200fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5201fb3b06c8SDave Airlie return -EINVAL; 5202fb3b06c8SDave Airlie 520384849903SDaniel Vetter drm_modeset_lock_all(dev); 5204a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5205a2b34e22SRob Clark if (!crtc) { 5206f27657f2SVille Syrjälä ret = -ENOENT; 5207f453ba04SDave Airlie goto out; 5208f453ba04SDave Airlie } 5209f453ba04SDave Airlie 5210ebe0f244SLaurent Pinchart if (crtc->funcs->gamma_set == NULL) { 5211ebe0f244SLaurent Pinchart ret = -ENOSYS; 5212ebe0f244SLaurent Pinchart goto out; 5213ebe0f244SLaurent Pinchart } 5214ebe0f244SLaurent Pinchart 5215f453ba04SDave Airlie /* memcpy into gamma store */ 5216f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5217f453ba04SDave Airlie ret = -EINVAL; 5218f453ba04SDave Airlie goto out; 5219f453ba04SDave Airlie } 5220f453ba04SDave Airlie 5221f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5222f453ba04SDave Airlie r_base = crtc->gamma_store; 5223f453ba04SDave Airlie if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { 5224f453ba04SDave Airlie ret = -EFAULT; 5225f453ba04SDave Airlie goto out; 5226f453ba04SDave Airlie } 5227f453ba04SDave Airlie 5228f453ba04SDave Airlie g_base = r_base + size; 5229f453ba04SDave Airlie if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { 5230f453ba04SDave Airlie ret = -EFAULT; 5231f453ba04SDave Airlie goto out; 5232f453ba04SDave Airlie } 5233f453ba04SDave Airlie 5234f453ba04SDave Airlie b_base = g_base + size; 5235f453ba04SDave Airlie if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { 5236f453ba04SDave Airlie ret = -EFAULT; 5237f453ba04SDave Airlie goto out; 5238f453ba04SDave Airlie } 5239f453ba04SDave Airlie 52407203425aSJames Simmons crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 5241f453ba04SDave Airlie 5242f453ba04SDave Airlie out: 524384849903SDaniel Vetter drm_modeset_unlock_all(dev); 5244f453ba04SDave Airlie return ret; 5245f453ba04SDave Airlie 5246f453ba04SDave Airlie } 5247f453ba04SDave Airlie 5248c8e32cc1SDaniel Vetter /** 5249c8e32cc1SDaniel Vetter * drm_mode_gamma_get_ioctl - get the gamma table 5250c8e32cc1SDaniel Vetter * @dev: DRM device 5251c8e32cc1SDaniel Vetter * @data: ioctl data 5252c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5253c8e32cc1SDaniel Vetter * 5254c8e32cc1SDaniel Vetter * Copy the current gamma table into the storage provided. This also provides 5255c8e32cc1SDaniel Vetter * the gamma table size the driver expects, which can be used to size the 5256c8e32cc1SDaniel Vetter * allocated storage. 5257c8e32cc1SDaniel Vetter * 5258c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5259c8e32cc1SDaniel Vetter * 5260c8e32cc1SDaniel Vetter * Returns: 52611a498633SDaniel Vetter * Zero on success, negative errno on failure. 5262c8e32cc1SDaniel Vetter */ 5263f453ba04SDave Airlie int drm_mode_gamma_get_ioctl(struct drm_device *dev, 5264f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5265f453ba04SDave Airlie { 5266f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5267f453ba04SDave Airlie struct drm_crtc *crtc; 5268f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5269f453ba04SDave Airlie int size; 5270f453ba04SDave Airlie int ret = 0; 5271f453ba04SDave Airlie 5272fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5273fb3b06c8SDave Airlie return -EINVAL; 5274fb3b06c8SDave Airlie 527584849903SDaniel Vetter drm_modeset_lock_all(dev); 5276a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5277a2b34e22SRob Clark if (!crtc) { 5278f27657f2SVille Syrjälä ret = -ENOENT; 5279f453ba04SDave Airlie goto out; 5280f453ba04SDave Airlie } 5281f453ba04SDave Airlie 5282f453ba04SDave Airlie /* memcpy into gamma store */ 5283f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5284f453ba04SDave Airlie ret = -EINVAL; 5285f453ba04SDave Airlie goto out; 5286f453ba04SDave Airlie } 5287f453ba04SDave Airlie 5288f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5289f453ba04SDave Airlie r_base = crtc->gamma_store; 5290f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { 5291f453ba04SDave Airlie ret = -EFAULT; 5292f453ba04SDave Airlie goto out; 5293f453ba04SDave Airlie } 5294f453ba04SDave Airlie 5295f453ba04SDave Airlie g_base = r_base + size; 5296f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { 5297f453ba04SDave Airlie ret = -EFAULT; 5298f453ba04SDave Airlie goto out; 5299f453ba04SDave Airlie } 5300f453ba04SDave Airlie 5301f453ba04SDave Airlie b_base = g_base + size; 5302f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { 5303f453ba04SDave Airlie ret = -EFAULT; 5304f453ba04SDave Airlie goto out; 5305f453ba04SDave Airlie } 5306f453ba04SDave Airlie out: 530784849903SDaniel Vetter drm_modeset_unlock_all(dev); 5308f453ba04SDave Airlie return ret; 5309f453ba04SDave Airlie } 5310d91d8a3fSKristian Høgsberg 5311c8e32cc1SDaniel Vetter /** 5312c8e32cc1SDaniel Vetter * drm_mode_page_flip_ioctl - schedule an asynchronous fb update 5313c8e32cc1SDaniel Vetter * @dev: DRM device 5314c8e32cc1SDaniel Vetter * @data: ioctl data 5315c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5316c8e32cc1SDaniel Vetter * 5317c8e32cc1SDaniel Vetter * This schedules an asynchronous update on a given CRTC, called page flip. 5318c8e32cc1SDaniel Vetter * Optionally a drm event is generated to signal the completion of the event. 5319c8e32cc1SDaniel Vetter * Generic drivers cannot assume that a pageflip with changed framebuffer 5320c8e32cc1SDaniel Vetter * properties (including driver specific metadata like tiling layout) will work, 5321c8e32cc1SDaniel Vetter * but some drivers support e.g. pixel format changes through the pageflip 5322c8e32cc1SDaniel Vetter * ioctl. 5323c8e32cc1SDaniel Vetter * 5324c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5325c8e32cc1SDaniel Vetter * 5326c8e32cc1SDaniel Vetter * Returns: 53271a498633SDaniel Vetter * Zero on success, negative errno on failure. 5328c8e32cc1SDaniel Vetter */ 5329d91d8a3fSKristian Høgsberg int drm_mode_page_flip_ioctl(struct drm_device *dev, 5330d91d8a3fSKristian Høgsberg void *data, struct drm_file *file_priv) 5331d91d8a3fSKristian Høgsberg { 5332d91d8a3fSKristian Høgsberg struct drm_mode_crtc_page_flip *page_flip = data; 5333d91d8a3fSKristian Høgsberg struct drm_crtc *crtc; 53343d30a59bSDaniel Vetter struct drm_framebuffer *fb = NULL; 5335d91d8a3fSKristian Høgsberg struct drm_pending_vblank_event *e = NULL; 5336d91d8a3fSKristian Høgsberg int ret = -EINVAL; 5337d91d8a3fSKristian Høgsberg 5338d91d8a3fSKristian Høgsberg if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || 5339d91d8a3fSKristian Høgsberg page_flip->reserved != 0) 5340d91d8a3fSKristian Høgsberg return -EINVAL; 5341d91d8a3fSKristian Høgsberg 534262f2104fSKeith Packard if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) 534362f2104fSKeith Packard return -EINVAL; 534462f2104fSKeith Packard 5345a2b34e22SRob Clark crtc = drm_crtc_find(dev, page_flip->crtc_id); 5346a2b34e22SRob Clark if (!crtc) 5347f27657f2SVille Syrjälä return -ENOENT; 5348d91d8a3fSKristian Høgsberg 53494d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 5350f4510a27SMatt Roper if (crtc->primary->fb == NULL) { 535190c1efddSChris Wilson /* The framebuffer is currently unbound, presumably 535290c1efddSChris Wilson * due to a hotplug event, that userspace has not 535390c1efddSChris Wilson * yet discovered. 535490c1efddSChris Wilson */ 535590c1efddSChris Wilson ret = -EBUSY; 535690c1efddSChris Wilson goto out; 535790c1efddSChris Wilson } 535890c1efddSChris Wilson 5359d91d8a3fSKristian Høgsberg if (crtc->funcs->page_flip == NULL) 5360d91d8a3fSKristian Høgsberg goto out; 5361d91d8a3fSKristian Høgsberg 5362786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, page_flip->fb_id); 536337c4e705SVille Syrjälä if (!fb) { 536437c4e705SVille Syrjälä ret = -ENOENT; 5365d91d8a3fSKristian Høgsberg goto out; 536637c4e705SVille Syrjälä } 5367d91d8a3fSKristian Høgsberg 53682afa701dSVille Syrjälä if (crtc->state) { 53692afa701dSVille Syrjälä const struct drm_plane_state *state = crtc->primary->state; 53702afa701dSVille Syrjälä 53712afa701dSVille Syrjälä ret = check_src_coords(state->src_x, state->src_y, 53722afa701dSVille Syrjälä state->src_w, state->src_h, fb); 53732afa701dSVille Syrjälä } else { 5374c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); 53752afa701dSVille Syrjälä } 5376c11e9283SDamien Lespiau if (ret) 53775f61bb42SVille Syrjälä goto out; 53785f61bb42SVille Syrjälä 5379f4510a27SMatt Roper if (crtc->primary->fb->pixel_format != fb->pixel_format) { 5380909d9cdaSLaurent Pinchart DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); 5381909d9cdaSLaurent Pinchart ret = -EINVAL; 5382909d9cdaSLaurent Pinchart goto out; 5383909d9cdaSLaurent Pinchart } 5384909d9cdaSLaurent Pinchart 5385d91d8a3fSKristian Høgsberg if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 53862dd500f1SDaniel Vetter e = kzalloc(sizeof *e, GFP_KERNEL); 53872dd500f1SDaniel Vetter if (!e) { 5388d91d8a3fSKristian Høgsberg ret = -ENOMEM; 5389d91d8a3fSKristian Høgsberg goto out; 5390d91d8a3fSKristian Høgsberg } 53917bd4d7beSJesse Barnes e->event.base.type = DRM_EVENT_FLIP_COMPLETE; 5392f76511b9SThierry Reding e->event.base.length = sizeof(e->event); 5393d91d8a3fSKristian Høgsberg e->event.user_data = page_flip->user_data; 53942dd500f1SDaniel Vetter ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base); 53952dd500f1SDaniel Vetter if (ret) { 53962dd500f1SDaniel Vetter kfree(e); 53972dd500f1SDaniel Vetter goto out; 53982dd500f1SDaniel Vetter } 5399d91d8a3fSKristian Høgsberg } 5400d91d8a3fSKristian Høgsberg 54013d30a59bSDaniel Vetter crtc->primary->old_fb = crtc->primary->fb; 5402ed8d1975SKeith Packard ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); 5403d91d8a3fSKristian Høgsberg if (ret) { 54042dd500f1SDaniel Vetter if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) 54052dd500f1SDaniel Vetter drm_event_cancel_free(dev, &e->base); 5406b0d12325SDaniel Vetter /* Keep the old fb, don't unref it. */ 54073d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5408b0d12325SDaniel Vetter } else { 54093cb43cc0SDaniel Vetter crtc->primary->fb = fb; 5410b0d12325SDaniel Vetter /* Unref only the old framebuffer. */ 5411b0d12325SDaniel Vetter fb = NULL; 5412aef6a7eeSJoonyoung Shim } 5413d91d8a3fSKristian Høgsberg 5414d91d8a3fSKristian Høgsberg out: 5415b0d12325SDaniel Vetter if (fb) 5416b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 54173d30a59bSDaniel Vetter if (crtc->primary->old_fb) 54183d30a59bSDaniel Vetter drm_framebuffer_unreference(crtc->primary->old_fb); 54193d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5420d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 5421b4d5e7d1SDaniel Vetter 5422d91d8a3fSKristian Høgsberg return ret; 5423d91d8a3fSKristian Høgsberg } 5424eb033556SChris Wilson 5425c8e32cc1SDaniel Vetter /** 5426c8e32cc1SDaniel Vetter * drm_mode_config_reset - call ->reset callbacks 5427c8e32cc1SDaniel Vetter * @dev: drm device 5428c8e32cc1SDaniel Vetter * 5429c8e32cc1SDaniel Vetter * This functions calls all the crtc's, encoder's and connector's ->reset 5430c8e32cc1SDaniel Vetter * callback. Drivers can use this in e.g. their driver load or resume code to 5431c8e32cc1SDaniel Vetter * reset hardware and software state. 5432c8e32cc1SDaniel Vetter */ 5433eb033556SChris Wilson void drm_mode_config_reset(struct drm_device *dev) 5434eb033556SChris Wilson { 5435eb033556SChris Wilson struct drm_crtc *crtc; 54362a0d7cfdSDaniel Vetter struct drm_plane *plane; 5437eb033556SChris Wilson struct drm_encoder *encoder; 5438eb033556SChris Wilson struct drm_connector *connector; 5439eb033556SChris Wilson 5440e4f62546SDaniel Vetter drm_for_each_plane(plane, dev) 54412a0d7cfdSDaniel Vetter if (plane->funcs->reset) 54422a0d7cfdSDaniel Vetter plane->funcs->reset(plane); 54432a0d7cfdSDaniel Vetter 5444e4f62546SDaniel Vetter drm_for_each_crtc(crtc, dev) 5445eb033556SChris Wilson if (crtc->funcs->reset) 5446eb033556SChris Wilson crtc->funcs->reset(crtc); 5447eb033556SChris Wilson 5448e4f62546SDaniel Vetter drm_for_each_encoder(encoder, dev) 5449eb033556SChris Wilson if (encoder->funcs->reset) 5450eb033556SChris Wilson encoder->funcs->reset(encoder); 5451eb033556SChris Wilson 5452f8c2ba31SDaniel Vetter mutex_lock(&dev->mode_config.mutex); 54534eebf60bSDave Airlie drm_for_each_connector(connector, dev) 5454eb033556SChris Wilson if (connector->funcs->reset) 5455eb033556SChris Wilson connector->funcs->reset(connector); 5456f8c2ba31SDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 54575e2cb2f6SDaniel Vetter } 5458eb033556SChris Wilson EXPORT_SYMBOL(drm_mode_config_reset); 5459ff72145bSDave Airlie 5460c8e32cc1SDaniel Vetter /** 5461c8e32cc1SDaniel Vetter * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer 5462c8e32cc1SDaniel Vetter * @dev: DRM device 5463c8e32cc1SDaniel Vetter * @data: ioctl data 5464c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5465c8e32cc1SDaniel Vetter * 5466c8e32cc1SDaniel Vetter * This creates a new dumb buffer in the driver's backing storage manager (GEM, 5467c8e32cc1SDaniel Vetter * TTM or something else entirely) and returns the resulting buffer handle. This 5468c8e32cc1SDaniel Vetter * handle can then be wrapped up into a framebuffer modeset object. 5469c8e32cc1SDaniel Vetter * 5470c8e32cc1SDaniel Vetter * Note that userspace is not allowed to use such objects for render 5471c8e32cc1SDaniel Vetter * acceleration - drivers must create their own private ioctls for such a use 5472c8e32cc1SDaniel Vetter * case. 5473c8e32cc1SDaniel Vetter * 5474c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5475c8e32cc1SDaniel Vetter * 5476c8e32cc1SDaniel Vetter * Returns: 54771a498633SDaniel Vetter * Zero on success, negative errno on failure. 5478c8e32cc1SDaniel Vetter */ 5479ff72145bSDave Airlie int drm_mode_create_dumb_ioctl(struct drm_device *dev, 5480ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5481ff72145bSDave Airlie { 5482ff72145bSDave Airlie struct drm_mode_create_dumb *args = data; 5483b28cd41fSDavid Herrmann u32 cpp, stride, size; 5484ff72145bSDave Airlie 5485ff72145bSDave Airlie if (!dev->driver->dumb_create) 5486ff72145bSDave Airlie return -ENOSYS; 5487b28cd41fSDavid Herrmann if (!args->width || !args->height || !args->bpp) 5488b28cd41fSDavid Herrmann return -EINVAL; 5489b28cd41fSDavid Herrmann 5490b28cd41fSDavid Herrmann /* overflow checks for 32bit size calculations */ 549100e72089SDavid Herrmann /* NOTE: DIV_ROUND_UP() can overflow */ 5492b28cd41fSDavid Herrmann cpp = DIV_ROUND_UP(args->bpp, 8); 549300e72089SDavid Herrmann if (!cpp || cpp > 0xffffffffU / args->width) 5494b28cd41fSDavid Herrmann return -EINVAL; 5495b28cd41fSDavid Herrmann stride = cpp * args->width; 5496b28cd41fSDavid Herrmann if (args->height > 0xffffffffU / stride) 5497b28cd41fSDavid Herrmann return -EINVAL; 5498b28cd41fSDavid Herrmann 5499b28cd41fSDavid Herrmann /* test for wrap-around */ 5500b28cd41fSDavid Herrmann size = args->height * stride; 5501b28cd41fSDavid Herrmann if (PAGE_ALIGN(size) == 0) 5502b28cd41fSDavid Herrmann return -EINVAL; 5503b28cd41fSDavid Herrmann 5504f6085952SThierry Reding /* 5505f6085952SThierry Reding * handle, pitch and size are output parameters. Zero them out to 5506f6085952SThierry Reding * prevent drivers from accidentally using uninitialized data. Since 5507f6085952SThierry Reding * not all existing userspace is clearing these fields properly we 5508f6085952SThierry Reding * cannot reject IOCTL with garbage in them. 5509f6085952SThierry Reding */ 5510f6085952SThierry Reding args->handle = 0; 5511f6085952SThierry Reding args->pitch = 0; 5512f6085952SThierry Reding args->size = 0; 5513f6085952SThierry Reding 5514ff72145bSDave Airlie return dev->driver->dumb_create(file_priv, dev, args); 5515ff72145bSDave Airlie } 5516ff72145bSDave Airlie 5517c8e32cc1SDaniel Vetter /** 5518c8e32cc1SDaniel Vetter * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer 5519c8e32cc1SDaniel Vetter * @dev: DRM device 5520c8e32cc1SDaniel Vetter * @data: ioctl data 5521c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5522c8e32cc1SDaniel Vetter * 5523c8e32cc1SDaniel Vetter * Allocate an offset in the drm device node's address space to be able to 5524c8e32cc1SDaniel Vetter * memory map a dumb buffer. 5525c8e32cc1SDaniel Vetter * 5526c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5527c8e32cc1SDaniel Vetter * 5528c8e32cc1SDaniel Vetter * Returns: 55291a498633SDaniel Vetter * Zero on success, negative errno on failure. 5530c8e32cc1SDaniel Vetter */ 5531ff72145bSDave Airlie int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 5532ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5533ff72145bSDave Airlie { 5534ff72145bSDave Airlie struct drm_mode_map_dumb *args = data; 5535ff72145bSDave Airlie 5536ff72145bSDave Airlie /* call driver ioctl to get mmap offset */ 5537ff72145bSDave Airlie if (!dev->driver->dumb_map_offset) 5538ff72145bSDave Airlie return -ENOSYS; 5539ff72145bSDave Airlie 5540ff72145bSDave Airlie return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); 5541ff72145bSDave Airlie } 5542ff72145bSDave Airlie 5543c8e32cc1SDaniel Vetter /** 5544c8e32cc1SDaniel Vetter * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer 5545c8e32cc1SDaniel Vetter * @dev: DRM device 5546c8e32cc1SDaniel Vetter * @data: ioctl data 5547c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5548c8e32cc1SDaniel Vetter * 5549c8e32cc1SDaniel Vetter * This destroys the userspace handle for the given dumb backing storage buffer. 5550c8e32cc1SDaniel Vetter * Since buffer objects must be reference counted in the kernel a buffer object 5551c8e32cc1SDaniel Vetter * won't be immediately freed if a framebuffer modeset object still uses it. 5552c8e32cc1SDaniel Vetter * 5553c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5554c8e32cc1SDaniel Vetter * 5555c8e32cc1SDaniel Vetter * Returns: 55561a498633SDaniel Vetter * Zero on success, negative errno on failure. 5557c8e32cc1SDaniel Vetter */ 5558ff72145bSDave Airlie int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 5559ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5560ff72145bSDave Airlie { 5561ff72145bSDave Airlie struct drm_mode_destroy_dumb *args = data; 5562ff72145bSDave Airlie 5563ff72145bSDave Airlie if (!dev->driver->dumb_destroy) 5564ff72145bSDave Airlie return -ENOSYS; 5565ff72145bSDave Airlie 5566ff72145bSDave Airlie return dev->driver->dumb_destroy(file_priv, dev, args->handle); 5567ff72145bSDave Airlie } 5568248dbc23SDave Airlie 5569c8e32cc1SDaniel Vetter /** 5570c8e32cc1SDaniel Vetter * drm_fb_get_bpp_depth - get the bpp/depth values for format 5571c8e32cc1SDaniel Vetter * @format: pixel format (DRM_FORMAT_*) 5572c8e32cc1SDaniel Vetter * @depth: storage for the depth value 5573c8e32cc1SDaniel Vetter * @bpp: storage for the bpp value 5574c8e32cc1SDaniel Vetter * 5575c8e32cc1SDaniel Vetter * This only supports RGB formats here for compat with code that doesn't use 5576c8e32cc1SDaniel Vetter * pixel formats directly yet. 5577248dbc23SDave Airlie */ 5578248dbc23SDave Airlie void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 5579248dbc23SDave Airlie int *bpp) 5580248dbc23SDave Airlie { 5581248dbc23SDave Airlie switch (format) { 5582c51a6bc5SVille Syrjälä case DRM_FORMAT_C8: 558304b3924dSVille Syrjälä case DRM_FORMAT_RGB332: 558404b3924dSVille Syrjälä case DRM_FORMAT_BGR233: 5585248dbc23SDave Airlie *depth = 8; 5586248dbc23SDave Airlie *bpp = 8; 5587248dbc23SDave Airlie break; 558804b3924dSVille Syrjälä case DRM_FORMAT_XRGB1555: 558904b3924dSVille Syrjälä case DRM_FORMAT_XBGR1555: 559004b3924dSVille Syrjälä case DRM_FORMAT_RGBX5551: 559104b3924dSVille Syrjälä case DRM_FORMAT_BGRX5551: 559204b3924dSVille Syrjälä case DRM_FORMAT_ARGB1555: 559304b3924dSVille Syrjälä case DRM_FORMAT_ABGR1555: 559404b3924dSVille Syrjälä case DRM_FORMAT_RGBA5551: 559504b3924dSVille Syrjälä case DRM_FORMAT_BGRA5551: 5596248dbc23SDave Airlie *depth = 15; 5597248dbc23SDave Airlie *bpp = 16; 5598248dbc23SDave Airlie break; 559904b3924dSVille Syrjälä case DRM_FORMAT_RGB565: 560004b3924dSVille Syrjälä case DRM_FORMAT_BGR565: 5601248dbc23SDave Airlie *depth = 16; 5602248dbc23SDave Airlie *bpp = 16; 5603248dbc23SDave Airlie break; 560404b3924dSVille Syrjälä case DRM_FORMAT_RGB888: 560504b3924dSVille Syrjälä case DRM_FORMAT_BGR888: 560604b3924dSVille Syrjälä *depth = 24; 560704b3924dSVille Syrjälä *bpp = 24; 560804b3924dSVille Syrjälä break; 560904b3924dSVille Syrjälä case DRM_FORMAT_XRGB8888: 561004b3924dSVille Syrjälä case DRM_FORMAT_XBGR8888: 561104b3924dSVille Syrjälä case DRM_FORMAT_RGBX8888: 561204b3924dSVille Syrjälä case DRM_FORMAT_BGRX8888: 5613248dbc23SDave Airlie *depth = 24; 5614248dbc23SDave Airlie *bpp = 32; 5615248dbc23SDave Airlie break; 561604b3924dSVille Syrjälä case DRM_FORMAT_XRGB2101010: 561704b3924dSVille Syrjälä case DRM_FORMAT_XBGR2101010: 561804b3924dSVille Syrjälä case DRM_FORMAT_RGBX1010102: 561904b3924dSVille Syrjälä case DRM_FORMAT_BGRX1010102: 562004b3924dSVille Syrjälä case DRM_FORMAT_ARGB2101010: 562104b3924dSVille Syrjälä case DRM_FORMAT_ABGR2101010: 562204b3924dSVille Syrjälä case DRM_FORMAT_RGBA1010102: 562304b3924dSVille Syrjälä case DRM_FORMAT_BGRA1010102: 5624248dbc23SDave Airlie *depth = 30; 5625248dbc23SDave Airlie *bpp = 32; 5626248dbc23SDave Airlie break; 562704b3924dSVille Syrjälä case DRM_FORMAT_ARGB8888: 562804b3924dSVille Syrjälä case DRM_FORMAT_ABGR8888: 562904b3924dSVille Syrjälä case DRM_FORMAT_RGBA8888: 563004b3924dSVille Syrjälä case DRM_FORMAT_BGRA8888: 5631248dbc23SDave Airlie *depth = 32; 5632248dbc23SDave Airlie *bpp = 32; 5633248dbc23SDave Airlie break; 5634248dbc23SDave Airlie default: 563523c453a4SVille Syrjälä DRM_DEBUG_KMS("unsupported pixel format %s\n", 563623c453a4SVille Syrjälä drm_get_format_name(format)); 5637248dbc23SDave Airlie *depth = 0; 5638248dbc23SDave Airlie *bpp = 0; 5639248dbc23SDave Airlie break; 5640248dbc23SDave Airlie } 5641248dbc23SDave Airlie } 5642248dbc23SDave Airlie EXPORT_SYMBOL(drm_fb_get_bpp_depth); 5643141670e9SVille Syrjälä 5644141670e9SVille Syrjälä /** 5645141670e9SVille Syrjälä * drm_format_num_planes - get the number of planes for format 5646141670e9SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 5647141670e9SVille Syrjälä * 5648c8e32cc1SDaniel Vetter * Returns: 5649141670e9SVille Syrjälä * The number of planes used by the specified pixel format. 5650141670e9SVille Syrjälä */ 5651141670e9SVille Syrjälä int drm_format_num_planes(uint32_t format) 5652141670e9SVille Syrjälä { 5653141670e9SVille Syrjälä switch (format) { 5654141670e9SVille Syrjälä case DRM_FORMAT_YUV410: 5655141670e9SVille Syrjälä case DRM_FORMAT_YVU410: 5656141670e9SVille Syrjälä case DRM_FORMAT_YUV411: 5657141670e9SVille Syrjälä case DRM_FORMAT_YVU411: 5658141670e9SVille Syrjälä case DRM_FORMAT_YUV420: 5659141670e9SVille Syrjälä case DRM_FORMAT_YVU420: 5660141670e9SVille Syrjälä case DRM_FORMAT_YUV422: 5661141670e9SVille Syrjälä case DRM_FORMAT_YVU422: 5662141670e9SVille Syrjälä case DRM_FORMAT_YUV444: 5663141670e9SVille Syrjälä case DRM_FORMAT_YVU444: 5664141670e9SVille Syrjälä return 3; 5665141670e9SVille Syrjälä case DRM_FORMAT_NV12: 5666141670e9SVille Syrjälä case DRM_FORMAT_NV21: 5667141670e9SVille Syrjälä case DRM_FORMAT_NV16: 5668141670e9SVille Syrjälä case DRM_FORMAT_NV61: 5669ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 5670ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 5671141670e9SVille Syrjälä return 2; 5672141670e9SVille Syrjälä default: 5673141670e9SVille Syrjälä return 1; 5674141670e9SVille Syrjälä } 5675141670e9SVille Syrjälä } 5676141670e9SVille Syrjälä EXPORT_SYMBOL(drm_format_num_planes); 56775a86bd55SVille Syrjälä 56785a86bd55SVille Syrjälä /** 56795a86bd55SVille Syrjälä * drm_format_plane_cpp - determine the bytes per pixel value 56805a86bd55SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 56815a86bd55SVille Syrjälä * @plane: plane index 56825a86bd55SVille Syrjälä * 5683c8e32cc1SDaniel Vetter * Returns: 56845a86bd55SVille Syrjälä * The bytes per pixel value for the specified plane. 56855a86bd55SVille Syrjälä */ 56865a86bd55SVille Syrjälä int drm_format_plane_cpp(uint32_t format, int plane) 56875a86bd55SVille Syrjälä { 56885a86bd55SVille Syrjälä unsigned int depth; 56895a86bd55SVille Syrjälä int bpp; 56905a86bd55SVille Syrjälä 56915a86bd55SVille Syrjälä if (plane >= drm_format_num_planes(format)) 56925a86bd55SVille Syrjälä return 0; 56935a86bd55SVille Syrjälä 56945a86bd55SVille Syrjälä switch (format) { 56955a86bd55SVille Syrjälä case DRM_FORMAT_YUYV: 56965a86bd55SVille Syrjälä case DRM_FORMAT_YVYU: 56975a86bd55SVille Syrjälä case DRM_FORMAT_UYVY: 56985a86bd55SVille Syrjälä case DRM_FORMAT_VYUY: 56995a86bd55SVille Syrjälä return 2; 57005a86bd55SVille Syrjälä case DRM_FORMAT_NV12: 57015a86bd55SVille Syrjälä case DRM_FORMAT_NV21: 57025a86bd55SVille Syrjälä case DRM_FORMAT_NV16: 57035a86bd55SVille Syrjälä case DRM_FORMAT_NV61: 5704ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 5705ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 57065a86bd55SVille Syrjälä return plane ? 2 : 1; 57075a86bd55SVille Syrjälä case DRM_FORMAT_YUV410: 57085a86bd55SVille Syrjälä case DRM_FORMAT_YVU410: 57095a86bd55SVille Syrjälä case DRM_FORMAT_YUV411: 57105a86bd55SVille Syrjälä case DRM_FORMAT_YVU411: 57115a86bd55SVille Syrjälä case DRM_FORMAT_YUV420: 57125a86bd55SVille Syrjälä case DRM_FORMAT_YVU420: 57135a86bd55SVille Syrjälä case DRM_FORMAT_YUV422: 57145a86bd55SVille Syrjälä case DRM_FORMAT_YVU422: 57155a86bd55SVille Syrjälä case DRM_FORMAT_YUV444: 57165a86bd55SVille Syrjälä case DRM_FORMAT_YVU444: 57175a86bd55SVille Syrjälä return 1; 57185a86bd55SVille Syrjälä default: 57195a86bd55SVille Syrjälä drm_fb_get_bpp_depth(format, &depth, &bpp); 57205a86bd55SVille Syrjälä return bpp >> 3; 57215a86bd55SVille Syrjälä } 57225a86bd55SVille Syrjälä } 57235a86bd55SVille Syrjälä EXPORT_SYMBOL(drm_format_plane_cpp); 572401b68b04SVille Syrjälä 572501b68b04SVille Syrjälä /** 572601b68b04SVille Syrjälä * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor 572701b68b04SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 572801b68b04SVille Syrjälä * 5729c8e32cc1SDaniel Vetter * Returns: 573001b68b04SVille Syrjälä * The horizontal chroma subsampling factor for the 573101b68b04SVille Syrjälä * specified pixel format. 573201b68b04SVille Syrjälä */ 573301b68b04SVille Syrjälä int drm_format_horz_chroma_subsampling(uint32_t format) 573401b68b04SVille Syrjälä { 573501b68b04SVille Syrjälä switch (format) { 573601b68b04SVille Syrjälä case DRM_FORMAT_YUV411: 573701b68b04SVille Syrjälä case DRM_FORMAT_YVU411: 573801b68b04SVille Syrjälä case DRM_FORMAT_YUV410: 573901b68b04SVille Syrjälä case DRM_FORMAT_YVU410: 574001b68b04SVille Syrjälä return 4; 574101b68b04SVille Syrjälä case DRM_FORMAT_YUYV: 574201b68b04SVille Syrjälä case DRM_FORMAT_YVYU: 574301b68b04SVille Syrjälä case DRM_FORMAT_UYVY: 574401b68b04SVille Syrjälä case DRM_FORMAT_VYUY: 574501b68b04SVille Syrjälä case DRM_FORMAT_NV12: 574601b68b04SVille Syrjälä case DRM_FORMAT_NV21: 574701b68b04SVille Syrjälä case DRM_FORMAT_NV16: 574801b68b04SVille Syrjälä case DRM_FORMAT_NV61: 574901b68b04SVille Syrjälä case DRM_FORMAT_YUV422: 575001b68b04SVille Syrjälä case DRM_FORMAT_YVU422: 575101b68b04SVille Syrjälä case DRM_FORMAT_YUV420: 575201b68b04SVille Syrjälä case DRM_FORMAT_YVU420: 575301b68b04SVille Syrjälä return 2; 575401b68b04SVille Syrjälä default: 575501b68b04SVille Syrjälä return 1; 575601b68b04SVille Syrjälä } 575701b68b04SVille Syrjälä } 575801b68b04SVille Syrjälä EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); 575901b68b04SVille Syrjälä 576001b68b04SVille Syrjälä /** 576101b68b04SVille Syrjälä * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor 576201b68b04SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 576301b68b04SVille Syrjälä * 5764c8e32cc1SDaniel Vetter * Returns: 576501b68b04SVille Syrjälä * The vertical chroma subsampling factor for the 576601b68b04SVille Syrjälä * specified pixel format. 576701b68b04SVille Syrjälä */ 576801b68b04SVille Syrjälä int drm_format_vert_chroma_subsampling(uint32_t format) 576901b68b04SVille Syrjälä { 577001b68b04SVille Syrjälä switch (format) { 577101b68b04SVille Syrjälä case DRM_FORMAT_YUV410: 577201b68b04SVille Syrjälä case DRM_FORMAT_YVU410: 577301b68b04SVille Syrjälä return 4; 577401b68b04SVille Syrjälä case DRM_FORMAT_YUV420: 577501b68b04SVille Syrjälä case DRM_FORMAT_YVU420: 577601b68b04SVille Syrjälä case DRM_FORMAT_NV12: 577701b68b04SVille Syrjälä case DRM_FORMAT_NV21: 577801b68b04SVille Syrjälä return 2; 577901b68b04SVille Syrjälä default: 578001b68b04SVille Syrjälä return 1; 578101b68b04SVille Syrjälä } 578201b68b04SVille Syrjälä } 578301b68b04SVille Syrjälä EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); 578487d24fc3SLaurent Pinchart 578587d24fc3SLaurent Pinchart /** 57864c61716cSVille Syrjälä * drm_format_plane_width - width of the plane given the first plane 57874c61716cSVille Syrjälä * @width: width of the first plane 57884c61716cSVille Syrjälä * @format: pixel format 57894c61716cSVille Syrjälä * @plane: plane index 57904c61716cSVille Syrjälä * 57914c61716cSVille Syrjälä * Returns: 57924c61716cSVille Syrjälä * The width of @plane, given that the width of the first plane is @width. 57934c61716cSVille Syrjälä */ 57944c61716cSVille Syrjälä int drm_format_plane_width(int width, uint32_t format, int plane) 57954c61716cSVille Syrjälä { 57964c61716cSVille Syrjälä if (plane >= drm_format_num_planes(format)) 57974c61716cSVille Syrjälä return 0; 57984c61716cSVille Syrjälä 57994c61716cSVille Syrjälä if (plane == 0) 58004c61716cSVille Syrjälä return width; 58014c61716cSVille Syrjälä 58024c61716cSVille Syrjälä return width / drm_format_horz_chroma_subsampling(format); 58034c61716cSVille Syrjälä } 58044c61716cSVille Syrjälä EXPORT_SYMBOL(drm_format_plane_width); 58054c61716cSVille Syrjälä 58064c61716cSVille Syrjälä /** 58074c61716cSVille Syrjälä * drm_format_plane_height - height of the plane given the first plane 58084c61716cSVille Syrjälä * @height: height of the first plane 58094c61716cSVille Syrjälä * @format: pixel format 58104c61716cSVille Syrjälä * @plane: plane index 58114c61716cSVille Syrjälä * 58124c61716cSVille Syrjälä * Returns: 58134c61716cSVille Syrjälä * The height of @plane, given that the height of the first plane is @height. 58144c61716cSVille Syrjälä */ 58154c61716cSVille Syrjälä int drm_format_plane_height(int height, uint32_t format, int plane) 58164c61716cSVille Syrjälä { 58174c61716cSVille Syrjälä if (plane >= drm_format_num_planes(format)) 58184c61716cSVille Syrjälä return 0; 58194c61716cSVille Syrjälä 58204c61716cSVille Syrjälä if (plane == 0) 58214c61716cSVille Syrjälä return height; 58224c61716cSVille Syrjälä 58234c61716cSVille Syrjälä return height / drm_format_vert_chroma_subsampling(format); 58244c61716cSVille Syrjälä } 58254c61716cSVille Syrjälä EXPORT_SYMBOL(drm_format_plane_height); 58264c61716cSVille Syrjälä 58274c61716cSVille Syrjälä /** 58283c9855f6SVille Syrjälä * drm_rotation_simplify() - Try to simplify the rotation 58293c9855f6SVille Syrjälä * @rotation: Rotation to be simplified 58303c9855f6SVille Syrjälä * @supported_rotations: Supported rotations 58313c9855f6SVille Syrjälä * 58323c9855f6SVille Syrjälä * Attempt to simplify the rotation to a form that is supported. 58333c9855f6SVille Syrjälä * Eg. if the hardware supports everything except DRM_REFLECT_X 58343c9855f6SVille Syrjälä * one could call this function like this: 58353c9855f6SVille Syrjälä * 58363c9855f6SVille Syrjälä * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | 58373c9855f6SVille Syrjälä * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | 58383c9855f6SVille Syrjälä * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); 58393c9855f6SVille Syrjälä * 58403c9855f6SVille Syrjälä * to eliminate the DRM_ROTATE_X flag. Depending on what kind of 58413c9855f6SVille Syrjälä * transforms the hardware supports, this function may not 58423c9855f6SVille Syrjälä * be able to produce a supported transform, so the caller should 58433c9855f6SVille Syrjälä * check the result afterwards. 58443c9855f6SVille Syrjälä */ 58453c9855f6SVille Syrjälä unsigned int drm_rotation_simplify(unsigned int rotation, 58463c9855f6SVille Syrjälä unsigned int supported_rotations) 58473c9855f6SVille Syrjälä { 58483c9855f6SVille Syrjälä if (rotation & ~supported_rotations) { 58493c9855f6SVille Syrjälä rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); 585014152c8dSJoonas Lahtinen rotation = (rotation & DRM_REFLECT_MASK) | 585114152c8dSJoonas Lahtinen BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); 58523c9855f6SVille Syrjälä } 58533c9855f6SVille Syrjälä 58543c9855f6SVille Syrjälä return rotation; 58553c9855f6SVille Syrjälä } 58563c9855f6SVille Syrjälä EXPORT_SYMBOL(drm_rotation_simplify); 58573c9855f6SVille Syrjälä 58583c9855f6SVille Syrjälä /** 585987d24fc3SLaurent Pinchart * drm_mode_config_init - initialize DRM mode_configuration structure 586087d24fc3SLaurent Pinchart * @dev: DRM device 586187d24fc3SLaurent Pinchart * 586287d24fc3SLaurent Pinchart * Initialize @dev's mode_config structure, used for tracking the graphics 586387d24fc3SLaurent Pinchart * configuration of @dev. 586487d24fc3SLaurent Pinchart * 586587d24fc3SLaurent Pinchart * Since this initializes the modeset locks, no locking is possible. Which is no 586687d24fc3SLaurent Pinchart * problem, since this should happen single threaded at init time. It is the 586787d24fc3SLaurent Pinchart * driver's problem to ensure this guarantee. 586887d24fc3SLaurent Pinchart * 586987d24fc3SLaurent Pinchart */ 587087d24fc3SLaurent Pinchart void drm_mode_config_init(struct drm_device *dev) 587187d24fc3SLaurent Pinchart { 587287d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.mutex); 587351fd371bSRob Clark drm_modeset_lock_init(&dev->mode_config.connection_mutex); 587487d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.idr_mutex); 587587d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.fb_lock); 58768fb6e7a5SDaniel Stone mutex_init(&dev->mode_config.blob_lock); 587787d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.fb_list); 587887d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.crtc_list); 587987d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.connector_list); 588087d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.encoder_list); 588187d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_list); 588287d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_blob_list); 588387d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.plane_list); 588487d24fc3SLaurent Pinchart idr_init(&dev->mode_config.crtc_idr); 5885138f9ebbSDave Airlie idr_init(&dev->mode_config.tile_idr); 58865fff80bbSMaarten Lankhorst ida_init(&dev->mode_config.connector_ida); 588787d24fc3SLaurent Pinchart 588887d24fc3SLaurent Pinchart drm_modeset_lock_all(dev); 58896b4959f4SRob Clark drm_mode_create_standard_properties(dev); 589087d24fc3SLaurent Pinchart drm_modeset_unlock_all(dev); 589187d24fc3SLaurent Pinchart 589287d24fc3SLaurent Pinchart /* Just to be sure */ 589387d24fc3SLaurent Pinchart dev->mode_config.num_fb = 0; 589487d24fc3SLaurent Pinchart dev->mode_config.num_connector = 0; 589587d24fc3SLaurent Pinchart dev->mode_config.num_crtc = 0; 589687d24fc3SLaurent Pinchart dev->mode_config.num_encoder = 0; 5897e27dde3eSMatt Roper dev->mode_config.num_overlay_plane = 0; 5898e27dde3eSMatt Roper dev->mode_config.num_total_plane = 0; 589987d24fc3SLaurent Pinchart } 590087d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_init); 590187d24fc3SLaurent Pinchart 590287d24fc3SLaurent Pinchart /** 590387d24fc3SLaurent Pinchart * drm_mode_config_cleanup - free up DRM mode_config info 590487d24fc3SLaurent Pinchart * @dev: DRM device 590587d24fc3SLaurent Pinchart * 590687d24fc3SLaurent Pinchart * Free up all the connectors and CRTCs associated with this DRM device, then 590787d24fc3SLaurent Pinchart * free up the framebuffers and associated buffer objects. 590887d24fc3SLaurent Pinchart * 590987d24fc3SLaurent Pinchart * Note that since this /should/ happen single-threaded at driver/device 591087d24fc3SLaurent Pinchart * teardown time, no locking is required. It's the driver's job to ensure that 591187d24fc3SLaurent Pinchart * this guarantee actually holds true. 591287d24fc3SLaurent Pinchart * 591387d24fc3SLaurent Pinchart * FIXME: cleanup any dangling user buffer objects too 591487d24fc3SLaurent Pinchart */ 591587d24fc3SLaurent Pinchart void drm_mode_config_cleanup(struct drm_device *dev) 591687d24fc3SLaurent Pinchart { 591787d24fc3SLaurent Pinchart struct drm_connector *connector, *ot; 591887d24fc3SLaurent Pinchart struct drm_crtc *crtc, *ct; 591987d24fc3SLaurent Pinchart struct drm_encoder *encoder, *enct; 592087d24fc3SLaurent Pinchart struct drm_framebuffer *fb, *fbt; 592187d24fc3SLaurent Pinchart struct drm_property *property, *pt; 592287d24fc3SLaurent Pinchart struct drm_property_blob *blob, *bt; 592387d24fc3SLaurent Pinchart struct drm_plane *plane, *plt; 592487d24fc3SLaurent Pinchart 592587d24fc3SLaurent Pinchart list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, 592687d24fc3SLaurent Pinchart head) { 592787d24fc3SLaurent Pinchart encoder->funcs->destroy(encoder); 592887d24fc3SLaurent Pinchart } 592987d24fc3SLaurent Pinchart 593087d24fc3SLaurent Pinchart list_for_each_entry_safe(connector, ot, 593187d24fc3SLaurent Pinchart &dev->mode_config.connector_list, head) { 593287d24fc3SLaurent Pinchart connector->funcs->destroy(connector); 593387d24fc3SLaurent Pinchart } 593487d24fc3SLaurent Pinchart 593587d24fc3SLaurent Pinchart list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, 593687d24fc3SLaurent Pinchart head) { 593787d24fc3SLaurent Pinchart drm_property_destroy(dev, property); 593887d24fc3SLaurent Pinchart } 593987d24fc3SLaurent Pinchart 5940f35034f8SMaarten Lankhorst list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, 5941f35034f8SMaarten Lankhorst head) { 5942f35034f8SMaarten Lankhorst plane->funcs->destroy(plane); 5943f35034f8SMaarten Lankhorst } 5944f35034f8SMaarten Lankhorst 5945f35034f8SMaarten Lankhorst list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { 5946f35034f8SMaarten Lankhorst crtc->funcs->destroy(crtc); 5947f35034f8SMaarten Lankhorst } 5948f35034f8SMaarten Lankhorst 594987d24fc3SLaurent Pinchart list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, 5950e2f5d2eaSDaniel Stone head_global) { 59516bcacf51SDaniel Stone drm_property_unreference_blob(blob); 595287d24fc3SLaurent Pinchart } 595387d24fc3SLaurent Pinchart 595487d24fc3SLaurent Pinchart /* 595587d24fc3SLaurent Pinchart * Single-threaded teardown context, so it's not required to grab the 595687d24fc3SLaurent Pinchart * fb_lock to protect against concurrent fb_list access. Contrary, it 595787d24fc3SLaurent Pinchart * would actually deadlock with the drm_framebuffer_cleanup function. 595887d24fc3SLaurent Pinchart * 595987d24fc3SLaurent Pinchart * Also, if there are any framebuffers left, that's a driver leak now, 596087d24fc3SLaurent Pinchart * so politely WARN about this. 596187d24fc3SLaurent Pinchart */ 596287d24fc3SLaurent Pinchart WARN_ON(!list_empty(&dev->mode_config.fb_list)); 596387d24fc3SLaurent Pinchart list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { 5964d0f37cf6SDave Airlie drm_framebuffer_free(&fb->base.refcount); 596587d24fc3SLaurent Pinchart } 596687d24fc3SLaurent Pinchart 59675fff80bbSMaarten Lankhorst ida_destroy(&dev->mode_config.connector_ida); 5968138f9ebbSDave Airlie idr_destroy(&dev->mode_config.tile_idr); 596987d24fc3SLaurent Pinchart idr_destroy(&dev->mode_config.crtc_idr); 597051fd371bSRob Clark drm_modeset_lock_fini(&dev->mode_config.connection_mutex); 597187d24fc3SLaurent Pinchart } 597287d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_cleanup); 5973c1df5f3cSVille Syrjälä 5974c1df5f3cSVille Syrjälä struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, 5975c1df5f3cSVille Syrjälä unsigned int supported_rotations) 5976c1df5f3cSVille Syrjälä { 5977c1df5f3cSVille Syrjälä static const struct drm_prop_enum_list props[] = { 5978c1df5f3cSVille Syrjälä { DRM_ROTATE_0, "rotate-0" }, 5979c1df5f3cSVille Syrjälä { DRM_ROTATE_90, "rotate-90" }, 5980c1df5f3cSVille Syrjälä { DRM_ROTATE_180, "rotate-180" }, 5981c1df5f3cSVille Syrjälä { DRM_ROTATE_270, "rotate-270" }, 5982c1df5f3cSVille Syrjälä { DRM_REFLECT_X, "reflect-x" }, 5983c1df5f3cSVille Syrjälä { DRM_REFLECT_Y, "reflect-y" }, 5984c1df5f3cSVille Syrjälä }; 5985c1df5f3cSVille Syrjälä 5986c1df5f3cSVille Syrjälä return drm_property_create_bitmask(dev, 0, "rotation", 5987c1df5f3cSVille Syrjälä props, ARRAY_SIZE(props), 5988c1df5f3cSVille Syrjälä supported_rotations); 5989c1df5f3cSVille Syrjälä } 5990c1df5f3cSVille Syrjälä EXPORT_SYMBOL(drm_mode_create_rotation_property); 5991138f9ebbSDave Airlie 5992138f9ebbSDave Airlie /** 5993138f9ebbSDave Airlie * DOC: Tile group 5994138f9ebbSDave Airlie * 5995138f9ebbSDave Airlie * Tile groups are used to represent tiled monitors with a unique 5996138f9ebbSDave Airlie * integer identifier. Tiled monitors using DisplayID v1.3 have 5997138f9ebbSDave Airlie * a unique 8-byte handle, we store this in a tile group, so we 5998138f9ebbSDave Airlie * have a common identifier for all tiles in a monitor group. 5999138f9ebbSDave Airlie */ 6000138f9ebbSDave Airlie static void drm_tile_group_free(struct kref *kref) 6001138f9ebbSDave Airlie { 6002138f9ebbSDave Airlie struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); 6003138f9ebbSDave Airlie struct drm_device *dev = tg->dev; 6004138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 6005138f9ebbSDave Airlie idr_remove(&dev->mode_config.tile_idr, tg->id); 6006138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 6007138f9ebbSDave Airlie kfree(tg); 6008138f9ebbSDave Airlie } 6009138f9ebbSDave Airlie 6010138f9ebbSDave Airlie /** 6011138f9ebbSDave Airlie * drm_mode_put_tile_group - drop a reference to a tile group. 6012138f9ebbSDave Airlie * @dev: DRM device 6013138f9ebbSDave Airlie * @tg: tile group to drop reference to. 6014138f9ebbSDave Airlie * 6015138f9ebbSDave Airlie * drop reference to tile group and free if 0. 6016138f9ebbSDave Airlie */ 6017138f9ebbSDave Airlie void drm_mode_put_tile_group(struct drm_device *dev, 6018138f9ebbSDave Airlie struct drm_tile_group *tg) 6019138f9ebbSDave Airlie { 6020138f9ebbSDave Airlie kref_put(&tg->refcount, drm_tile_group_free); 6021138f9ebbSDave Airlie } 6022138f9ebbSDave Airlie 6023138f9ebbSDave Airlie /** 6024138f9ebbSDave Airlie * drm_mode_get_tile_group - get a reference to an existing tile group 6025138f9ebbSDave Airlie * @dev: DRM device 6026138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 6027138f9ebbSDave Airlie * 6028138f9ebbSDave Airlie * Use the unique bytes to get a reference to an existing tile group. 6029138f9ebbSDave Airlie * 6030138f9ebbSDave Airlie * RETURNS: 6031138f9ebbSDave Airlie * tile group or NULL if not found. 6032138f9ebbSDave Airlie */ 6033138f9ebbSDave Airlie struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, 6034138f9ebbSDave Airlie char topology[8]) 6035138f9ebbSDave Airlie { 6036138f9ebbSDave Airlie struct drm_tile_group *tg; 6037138f9ebbSDave Airlie int id; 6038138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 6039138f9ebbSDave Airlie idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { 6040138f9ebbSDave Airlie if (!memcmp(tg->group_data, topology, 8)) { 6041138f9ebbSDave Airlie if (!kref_get_unless_zero(&tg->refcount)) 6042138f9ebbSDave Airlie tg = NULL; 6043138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 6044138f9ebbSDave Airlie return tg; 6045138f9ebbSDave Airlie } 6046138f9ebbSDave Airlie } 6047138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 6048138f9ebbSDave Airlie return NULL; 6049138f9ebbSDave Airlie } 605081ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_get_tile_group); 6051138f9ebbSDave Airlie 6052138f9ebbSDave Airlie /** 6053138f9ebbSDave Airlie * drm_mode_create_tile_group - create a tile group from a displayid description 6054138f9ebbSDave Airlie * @dev: DRM device 6055138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 6056138f9ebbSDave Airlie * 6057138f9ebbSDave Airlie * Create a tile group for the unique monitor, and get a unique 6058138f9ebbSDave Airlie * identifier for the tile group. 6059138f9ebbSDave Airlie * 6060138f9ebbSDave Airlie * RETURNS: 6061138f9ebbSDave Airlie * new tile group or error. 6062138f9ebbSDave Airlie */ 6063138f9ebbSDave Airlie struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, 6064138f9ebbSDave Airlie char topology[8]) 6065138f9ebbSDave Airlie { 6066138f9ebbSDave Airlie struct drm_tile_group *tg; 6067138f9ebbSDave Airlie int ret; 6068138f9ebbSDave Airlie 6069138f9ebbSDave Airlie tg = kzalloc(sizeof(*tg), GFP_KERNEL); 6070138f9ebbSDave Airlie if (!tg) 6071138f9ebbSDave Airlie return ERR_PTR(-ENOMEM); 6072138f9ebbSDave Airlie 6073138f9ebbSDave Airlie kref_init(&tg->refcount); 6074138f9ebbSDave Airlie memcpy(tg->group_data, topology, 8); 6075138f9ebbSDave Airlie tg->dev = dev; 6076138f9ebbSDave Airlie 6077138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 6078138f9ebbSDave Airlie ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); 6079138f9ebbSDave Airlie if (ret >= 0) { 6080138f9ebbSDave Airlie tg->id = ret; 6081138f9ebbSDave Airlie } else { 6082138f9ebbSDave Airlie kfree(tg); 6083138f9ebbSDave Airlie tg = ERR_PTR(ret); 6084138f9ebbSDave Airlie } 6085138f9ebbSDave Airlie 6086138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 6087138f9ebbSDave Airlie return tg; 6088138f9ebbSDave Airlie } 608981ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_create_tile_group); 6090