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, 48c394c2b0SMatt Roper 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, 2782ee39452SDave Airlie bool register_obj) 2792ee39452SDave Airlie { 2802ee39452SDave Airlie int ret; 2812ee39452SDave Airlie 2822ee39452SDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 2832ee39452SDave Airlie ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); 2842ee39452SDave Airlie if (ret >= 0) { 2852ee39452SDave Airlie /* 2862ee39452SDave Airlie * Set up the object linking under the protection of the idr 2872ee39452SDave Airlie * lock so that other users can't see inconsistent state. 2882ee39452SDave Airlie */ 2892ee39452SDave Airlie obj->id = ret; 2902ee39452SDave Airlie obj->type = obj_type; 2912ee39452SDave Airlie } 2922ee39452SDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 2932ee39452SDave Airlie 2942ee39452SDave Airlie return ret < 0 ? ret : 0; 2952ee39452SDave Airlie } 2962ee39452SDave Airlie 297f453ba04SDave Airlie /** 298065a50edSDaniel Vetter * drm_mode_object_get - allocate a new modeset identifier 299f453ba04SDave Airlie * @dev: DRM device 300065a50edSDaniel Vetter * @obj: object pointer, used to generate unique ID 301065a50edSDaniel Vetter * @obj_type: object type 302f453ba04SDave Airlie * 303f453ba04SDave Airlie * Create a unique identifier based on @ptr in @dev's identifier space. Used 304c8e32cc1SDaniel Vetter * for tracking modes, CRTCs and connectors. Note that despite the _get postfix 305c8e32cc1SDaniel Vetter * modeset identifiers are _not_ reference counted. Hence don't use this for 306c8e32cc1SDaniel Vetter * reference counted modeset objects like framebuffers. 307f453ba04SDave Airlie * 308c8e32cc1SDaniel Vetter * Returns: 3093c67d839SLukas Wunner * Zero on success, error code on failure. 310f453ba04SDave Airlie */ 3118bd441b2SDaniel Vetter int drm_mode_object_get(struct drm_device *dev, 312f453ba04SDave Airlie struct drm_mode_object *obj, uint32_t obj_type) 313f453ba04SDave Airlie { 3142ee39452SDave Airlie return drm_mode_object_get_reg(dev, obj, obj_type, true); 3154b096ac1SDaniel Vetter } 3164b096ac1SDaniel Vetter 3172ee39452SDave Airlie static void drm_mode_object_register(struct drm_device *dev, 3182ee39452SDave Airlie struct drm_mode_object *obj) 3192ee39452SDave Airlie { 3202ee39452SDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 3212ee39452SDave Airlie idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); 3222ee39452SDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 323f453ba04SDave Airlie } 324f453ba04SDave Airlie 325f453ba04SDave Airlie /** 326065a50edSDaniel Vetter * drm_mode_object_put - free a modeset identifer 327f453ba04SDave Airlie * @dev: DRM device 328065a50edSDaniel Vetter * @object: object to free 329f453ba04SDave Airlie * 330c8e32cc1SDaniel Vetter * Free @id from @dev's unique identifier pool. Note that despite the _get 331c8e32cc1SDaniel Vetter * postfix modeset identifiers are _not_ reference counted. Hence don't use this 332c8e32cc1SDaniel Vetter * for reference counted modeset objects like framebuffers. 333f453ba04SDave Airlie */ 3348bd441b2SDaniel Vetter void drm_mode_object_put(struct drm_device *dev, 335f453ba04SDave Airlie struct drm_mode_object *object) 336f453ba04SDave Airlie { 337ad2563c2SJesse Barnes mutex_lock(&dev->mode_config.idr_mutex); 338f453ba04SDave Airlie idr_remove(&dev->mode_config.crtc_idr, object->id); 339ad2563c2SJesse Barnes mutex_unlock(&dev->mode_config.idr_mutex); 340f453ba04SDave Airlie } 341f453ba04SDave Airlie 34298f75de4SRob Clark static struct drm_mode_object *_object_find(struct drm_device *dev, 34398f75de4SRob Clark uint32_t id, uint32_t type) 34498f75de4SRob Clark { 34598f75de4SRob Clark struct drm_mode_object *obj = NULL; 34698f75de4SRob Clark 34798f75de4SRob Clark mutex_lock(&dev->mode_config.idr_mutex); 34898f75de4SRob Clark obj = idr_find(&dev->mode_config.crtc_idr, id); 349168c02ecSDaniel Vetter if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) 350168c02ecSDaniel Vetter obj = NULL; 351168c02ecSDaniel Vetter if (obj && obj->id != id) 352168c02ecSDaniel Vetter obj = NULL; 353168c02ecSDaniel Vetter /* don't leak out unref'd fb's */ 3546bcacf51SDaniel Stone if (obj && 3556bcacf51SDaniel Stone (obj->type == DRM_MODE_OBJECT_FB || 3566bcacf51SDaniel Stone obj->type == DRM_MODE_OBJECT_BLOB)) 35798f75de4SRob Clark obj = NULL; 35898f75de4SRob Clark mutex_unlock(&dev->mode_config.idr_mutex); 35998f75de4SRob Clark 36098f75de4SRob Clark return obj; 36198f75de4SRob Clark } 36298f75de4SRob Clark 363786b99edSDaniel Vetter /** 364786b99edSDaniel Vetter * drm_mode_object_find - look up a drm object with static lifetime 365786b99edSDaniel Vetter * @dev: drm device 366786b99edSDaniel Vetter * @id: id of the mode object 367786b99edSDaniel Vetter * @type: type of the mode object 368786b99edSDaniel Vetter * 369786b99edSDaniel Vetter * Note that framebuffers cannot be looked up with this functions - since those 37098f75de4SRob Clark * are reference counted, they need special treatment. Even with 37198f75de4SRob Clark * DRM_MODE_OBJECT_ANY (although that will simply return NULL 37298f75de4SRob Clark * rather than WARN_ON()). 373786b99edSDaniel Vetter */ 3747a9c9060SDaniel Vetter struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 3757a9c9060SDaniel Vetter uint32_t id, uint32_t type) 376f453ba04SDave Airlie { 377ad2563c2SJesse Barnes struct drm_mode_object *obj = NULL; 378f453ba04SDave Airlie 379786b99edSDaniel Vetter /* Framebuffers are reference counted and need their own lookup 380786b99edSDaniel Vetter * function.*/ 3816bcacf51SDaniel Stone WARN_ON(type == DRM_MODE_OBJECT_FB || type == DRM_MODE_OBJECT_BLOB); 38298f75de4SRob Clark obj = _object_find(dev, id, type); 383f453ba04SDave Airlie return obj; 384f453ba04SDave Airlie } 385f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_object_find); 386f453ba04SDave Airlie 387f453ba04SDave Airlie /** 388f453ba04SDave Airlie * drm_framebuffer_init - initialize a framebuffer 389f453ba04SDave Airlie * @dev: DRM device 390065a50edSDaniel Vetter * @fb: framebuffer to be initialized 391065a50edSDaniel Vetter * @funcs: ... with these functions 392f453ba04SDave Airlie * 393f453ba04SDave Airlie * Allocates an ID for the framebuffer's parent mode object, sets its mode 394f453ba04SDave Airlie * functions & device file and adds it to the master fd list. 395f453ba04SDave Airlie * 3964b096ac1SDaniel Vetter * IMPORTANT: 3974b096ac1SDaniel Vetter * This functions publishes the fb and makes it available for concurrent access 3984b096ac1SDaniel Vetter * by other users. Which means by this point the fb _must_ be fully set up - 3994b096ac1SDaniel Vetter * since all the fb attributes are invariant over its lifetime, no further 4004b096ac1SDaniel Vetter * locking but only correct reference counting is required. 4014b096ac1SDaniel Vetter * 402c8e32cc1SDaniel Vetter * Returns: 403af901ca1SAndré Goddard Rosa * Zero on success, error code on failure. 404f453ba04SDave Airlie */ 405f453ba04SDave Airlie int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, 406f453ba04SDave Airlie const struct drm_framebuffer_funcs *funcs) 407f453ba04SDave Airlie { 408f453ba04SDave Airlie int ret; 409f453ba04SDave Airlie 4104b096ac1SDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 411f7eff60eSRob Clark kref_init(&fb->refcount); 4124b096ac1SDaniel Vetter INIT_LIST_HEAD(&fb->filp_head); 4134b096ac1SDaniel Vetter fb->dev = dev; 4144b096ac1SDaniel Vetter fb->funcs = funcs; 415f7eff60eSRob Clark 416f453ba04SDave Airlie ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); 4176bfc56aaSVille Syrjälä if (ret) 4184b096ac1SDaniel Vetter goto out; 419f453ba04SDave Airlie 420f453ba04SDave Airlie dev->mode_config.num_fb++; 421f453ba04SDave Airlie list_add(&fb->head, &dev->mode_config.fb_list); 4224b096ac1SDaniel Vetter out: 4234b096ac1SDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 424f453ba04SDave Airlie 4253c67d839SLukas Wunner return ret; 426f453ba04SDave Airlie } 427f453ba04SDave Airlie EXPORT_SYMBOL(drm_framebuffer_init); 428f453ba04SDave Airlie 42983f45fc3SDaniel Vetter /* dev->mode_config.fb_lock must be held! */ 43083f45fc3SDaniel Vetter static void __drm_framebuffer_unregister(struct drm_device *dev, 43183f45fc3SDaniel Vetter struct drm_framebuffer *fb) 43283f45fc3SDaniel Vetter { 43383f45fc3SDaniel Vetter mutex_lock(&dev->mode_config.idr_mutex); 43483f45fc3SDaniel Vetter idr_remove(&dev->mode_config.crtc_idr, fb->base.id); 43583f45fc3SDaniel Vetter mutex_unlock(&dev->mode_config.idr_mutex); 43683f45fc3SDaniel Vetter 43783f45fc3SDaniel Vetter fb->base.id = 0; 43883f45fc3SDaniel Vetter } 43983f45fc3SDaniel Vetter 440f7eff60eSRob Clark static void drm_framebuffer_free(struct kref *kref) 441f7eff60eSRob Clark { 442f7eff60eSRob Clark struct drm_framebuffer *fb = 443f7eff60eSRob Clark container_of(kref, struct drm_framebuffer, refcount); 44483f45fc3SDaniel Vetter struct drm_device *dev = fb->dev; 44583f45fc3SDaniel Vetter 44683f45fc3SDaniel Vetter /* 44783f45fc3SDaniel Vetter * The lookup idr holds a weak reference, which has not necessarily been 44883f45fc3SDaniel Vetter * removed at this point. Check for that. 44983f45fc3SDaniel Vetter */ 45083f45fc3SDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 45183f45fc3SDaniel Vetter if (fb->base.id) { 45283f45fc3SDaniel Vetter /* Mark fb as reaped and drop idr ref. */ 45383f45fc3SDaniel Vetter __drm_framebuffer_unregister(dev, fb); 45483f45fc3SDaniel Vetter } 45583f45fc3SDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 45683f45fc3SDaniel Vetter 457f7eff60eSRob Clark fb->funcs->destroy(fb); 458f7eff60eSRob Clark } 459f7eff60eSRob Clark 4602b677e8cSDaniel Vetter static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, 4612b677e8cSDaniel Vetter uint32_t id) 4622b677e8cSDaniel Vetter { 4632b677e8cSDaniel Vetter struct drm_mode_object *obj = NULL; 4642b677e8cSDaniel Vetter struct drm_framebuffer *fb; 4652b677e8cSDaniel Vetter 4662b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.idr_mutex); 4672b677e8cSDaniel Vetter obj = idr_find(&dev->mode_config.crtc_idr, id); 4682b677e8cSDaniel Vetter if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) 4692b677e8cSDaniel Vetter fb = NULL; 4702b677e8cSDaniel Vetter else 4712b677e8cSDaniel Vetter fb = obj_to_fb(obj); 4722b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.idr_mutex); 4732b677e8cSDaniel Vetter 4742b677e8cSDaniel Vetter return fb; 4752b677e8cSDaniel Vetter } 4762b677e8cSDaniel Vetter 477f7eff60eSRob Clark /** 478786b99edSDaniel Vetter * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference 479786b99edSDaniel Vetter * @dev: drm device 480786b99edSDaniel Vetter * @id: id of the fb object 481786b99edSDaniel Vetter * 482786b99edSDaniel Vetter * If successful, this grabs an additional reference to the framebuffer - 483786b99edSDaniel Vetter * callers need to make sure to eventually unreference the returned framebuffer 484c8e32cc1SDaniel Vetter * again, using @drm_framebuffer_unreference. 485786b99edSDaniel Vetter */ 486786b99edSDaniel Vetter struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, 487786b99edSDaniel Vetter uint32_t id) 488786b99edSDaniel Vetter { 489786b99edSDaniel Vetter struct drm_framebuffer *fb; 490786b99edSDaniel Vetter 491786b99edSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 4922b677e8cSDaniel Vetter fb = __drm_framebuffer_lookup(dev, id); 49383f45fc3SDaniel Vetter if (fb) { 49483f45fc3SDaniel Vetter if (!kref_get_unless_zero(&fb->refcount)) 49583f45fc3SDaniel Vetter fb = NULL; 49683f45fc3SDaniel Vetter } 497786b99edSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 498786b99edSDaniel Vetter 499786b99edSDaniel Vetter return fb; 500786b99edSDaniel Vetter } 501786b99edSDaniel Vetter EXPORT_SYMBOL(drm_framebuffer_lookup); 502786b99edSDaniel Vetter 503786b99edSDaniel Vetter /** 504f7eff60eSRob Clark * drm_framebuffer_unreference - unref a framebuffer 505065a50edSDaniel Vetter * @fb: framebuffer to unref 506065a50edSDaniel Vetter * 507065a50edSDaniel Vetter * This functions decrements the fb's refcount and frees it if it drops to zero. 508f7eff60eSRob Clark */ 509f7eff60eSRob Clark void drm_framebuffer_unreference(struct drm_framebuffer *fb) 510f7eff60eSRob Clark { 5118291272aSRob Clark DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); 512f7eff60eSRob Clark kref_put(&fb->refcount, drm_framebuffer_free); 513f7eff60eSRob Clark } 514f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_unreference); 515f7eff60eSRob Clark 516f7eff60eSRob Clark /** 517f7eff60eSRob Clark * drm_framebuffer_reference - incr the fb refcnt 518065a50edSDaniel Vetter * @fb: framebuffer 519c8e32cc1SDaniel Vetter * 520c8e32cc1SDaniel Vetter * This functions increments the fb's refcount. 521f7eff60eSRob Clark */ 522f7eff60eSRob Clark void drm_framebuffer_reference(struct drm_framebuffer *fb) 523f7eff60eSRob Clark { 5248291272aSRob Clark DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); 525f7eff60eSRob Clark kref_get(&fb->refcount); 526f7eff60eSRob Clark } 527f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_reference); 528f7eff60eSRob Clark 529f453ba04SDave Airlie /** 53036206361SDaniel Vetter * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr 53136206361SDaniel Vetter * @fb: fb to unregister 53236206361SDaniel Vetter * 53336206361SDaniel Vetter * Drivers need to call this when cleaning up driver-private framebuffers, e.g. 53436206361SDaniel Vetter * those used for fbdev. Note that the caller must hold a reference of it's own, 53536206361SDaniel Vetter * i.e. the object may not be destroyed through this call (since it'll lead to a 53636206361SDaniel Vetter * locking inversion). 53736206361SDaniel Vetter */ 53836206361SDaniel Vetter void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) 53936206361SDaniel Vetter { 540a39a357cSDaniel Vetter struct drm_device *dev; 541a39a357cSDaniel Vetter 542a39a357cSDaniel Vetter if (!fb) 543a39a357cSDaniel Vetter return; 544a39a357cSDaniel Vetter 545a39a357cSDaniel Vetter dev = fb->dev; 5462b677e8cSDaniel Vetter 5472b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 5482b677e8cSDaniel Vetter /* Mark fb as reaped and drop idr ref. */ 5492b677e8cSDaniel Vetter __drm_framebuffer_unregister(dev, fb); 5502b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 55136206361SDaniel Vetter } 55236206361SDaniel Vetter EXPORT_SYMBOL(drm_framebuffer_unregister_private); 55336206361SDaniel Vetter 55436206361SDaniel Vetter /** 555f453ba04SDave Airlie * drm_framebuffer_cleanup - remove a framebuffer object 556f453ba04SDave Airlie * @fb: framebuffer to remove 557f453ba04SDave Airlie * 558c8e32cc1SDaniel Vetter * Cleanup framebuffer. This function is intended to be used from the drivers 559c8e32cc1SDaniel Vetter * ->destroy callback. It can also be used to clean up driver private 560c8e32cc1SDaniel Vetter * framebuffers embedded into a larger structure. 56136206361SDaniel Vetter * 56236206361SDaniel Vetter * Note that this function does not remove the fb from active usuage - if it is 56336206361SDaniel Vetter * still used anywhere, hilarity can ensue since userspace could call getfb on 56436206361SDaniel Vetter * the id and get back -EINVAL. Obviously no concern at driver unload time. 56536206361SDaniel Vetter * 56636206361SDaniel Vetter * Also, the framebuffer will not be removed from the lookup idr - for 56736206361SDaniel Vetter * user-created framebuffers this will happen in in the rmfb ioctl. For 56836206361SDaniel Vetter * driver-private objects (e.g. for fbdev) drivers need to explicitly call 56936206361SDaniel Vetter * drm_framebuffer_unregister_private. 570f453ba04SDave Airlie */ 571f453ba04SDave Airlie void drm_framebuffer_cleanup(struct drm_framebuffer *fb) 572f453ba04SDave Airlie { 573f453ba04SDave Airlie struct drm_device *dev = fb->dev; 5748faf6b18SDaniel Vetter 5754b096ac1SDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 576f7eff60eSRob Clark list_del(&fb->head); 577f7eff60eSRob Clark dev->mode_config.num_fb--; 5784b096ac1SDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 579f7eff60eSRob Clark } 580f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_cleanup); 581f7eff60eSRob Clark 582f7eff60eSRob Clark /** 583f7eff60eSRob Clark * drm_framebuffer_remove - remove and unreference a framebuffer object 584f7eff60eSRob Clark * @fb: framebuffer to remove 585f7eff60eSRob Clark * 586f7eff60eSRob Clark * Scans all the CRTCs and planes in @dev's mode_config. If they're 58736206361SDaniel Vetter * using @fb, removes it, setting it to NULL. Then drops the reference to the 588b62584e3SDaniel Vetter * passed-in framebuffer. Might take the modeset locks. 589b62584e3SDaniel Vetter * 590b62584e3SDaniel Vetter * Note that this function optimizes the cleanup away if the caller holds the 591b62584e3SDaniel Vetter * last reference to the framebuffer. It is also guaranteed to not take the 592b62584e3SDaniel Vetter * modeset locks in this case. 593f7eff60eSRob Clark */ 594f7eff60eSRob Clark void drm_framebuffer_remove(struct drm_framebuffer *fb) 595f7eff60eSRob Clark { 596a39a357cSDaniel Vetter struct drm_device *dev; 597f453ba04SDave Airlie struct drm_crtc *crtc; 5988cf5c917SJesse Barnes struct drm_plane *plane; 5995ef5f72fSDave Airlie struct drm_mode_set set; 6005ef5f72fSDave Airlie int ret; 601f453ba04SDave Airlie 602a39a357cSDaniel Vetter if (!fb) 603a39a357cSDaniel Vetter return; 604a39a357cSDaniel Vetter 605a39a357cSDaniel Vetter dev = fb->dev; 606a39a357cSDaniel Vetter 6074b096ac1SDaniel Vetter WARN_ON(!list_empty(&fb->filp_head)); 6088faf6b18SDaniel Vetter 609b62584e3SDaniel Vetter /* 610b62584e3SDaniel Vetter * drm ABI mandates that we remove any deleted framebuffers from active 611b62584e3SDaniel Vetter * useage. But since most sane clients only remove framebuffers they no 612b62584e3SDaniel Vetter * longer need, try to optimize this away. 613b62584e3SDaniel Vetter * 614b62584e3SDaniel Vetter * Since we're holding a reference ourselves, observing a refcount of 1 615b62584e3SDaniel Vetter * means that we're the last holder and can skip it. Also, the refcount 616b62584e3SDaniel Vetter * can never increase from 1 again, so we don't need any barriers or 617b62584e3SDaniel Vetter * locks. 618b62584e3SDaniel Vetter * 619b62584e3SDaniel Vetter * Note that userspace could try to race with use and instate a new 620b62584e3SDaniel Vetter * usage _after_ we've cleared all current ones. End result will be an 621b62584e3SDaniel Vetter * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot 622b62584e3SDaniel Vetter * in this manner. 623b62584e3SDaniel Vetter */ 624b62584e3SDaniel Vetter if (atomic_read(&fb->refcount.refcount) > 1) { 625b62584e3SDaniel Vetter drm_modeset_lock_all(dev); 626f453ba04SDave Airlie /* remove from any CRTC */ 6276295d607SDaniel Vetter drm_for_each_crtc(crtc, dev) { 628f4510a27SMatt Roper if (crtc->primary->fb == fb) { 6295ef5f72fSDave Airlie /* should turn off the crtc */ 6305ef5f72fSDave Airlie memset(&set, 0, sizeof(struct drm_mode_set)); 6315ef5f72fSDave Airlie set.crtc = crtc; 6325ef5f72fSDave Airlie set.fb = NULL; 6332d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 6345ef5f72fSDave Airlie if (ret) 6355ef5f72fSDave Airlie DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); 6365ef5f72fSDave Airlie } 637f453ba04SDave Airlie } 638f453ba04SDave Airlie 6396295d607SDaniel Vetter drm_for_each_plane(plane, dev) { 6409125e618SVille Syrjälä if (plane->fb == fb) 6419125e618SVille Syrjälä drm_plane_force_disable(plane); 6428cf5c917SJesse Barnes } 643b62584e3SDaniel Vetter drm_modeset_unlock_all(dev); 644b62584e3SDaniel Vetter } 6458cf5c917SJesse Barnes 646f7eff60eSRob Clark drm_framebuffer_unreference(fb); 647f453ba04SDave Airlie } 648f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_remove); 649f453ba04SDave Airlie 65051fd371bSRob Clark DEFINE_WW_CLASS(crtc_ww_class); 65151fd371bSRob Clark 652f453ba04SDave Airlie /** 653e13161afSMatt Roper * drm_crtc_init_with_planes - Initialise a new CRTC object with 654e13161afSMatt Roper * specified primary and cursor planes. 655f453ba04SDave Airlie * @dev: DRM device 656f453ba04SDave Airlie * @crtc: CRTC object to init 657e13161afSMatt Roper * @primary: Primary plane for CRTC 658e13161afSMatt Roper * @cursor: Cursor plane for CRTC 659f453ba04SDave Airlie * @funcs: callbacks for the new CRTC 660f453ba04SDave Airlie * 661ad6f5c34SVille Syrjälä * Inits a new object created as base part of a driver crtc object. 6626bfc56aaSVille Syrjälä * 663c8e32cc1SDaniel Vetter * Returns: 6646bfc56aaSVille Syrjälä * Zero on success, error code on failure. 665f453ba04SDave Airlie */ 666e13161afSMatt Roper int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, 667e13161afSMatt Roper struct drm_plane *primary, 668fc1d3e44SMatt Roper struct drm_plane *cursor, 669f453ba04SDave Airlie const struct drm_crtc_funcs *funcs) 670f453ba04SDave Airlie { 67151fd371bSRob Clark struct drm_mode_config *config = &dev->mode_config; 6726bfc56aaSVille Syrjälä int ret; 6736bfc56aaSVille Syrjälä 674522cf91fSBenjamin Gaignard WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); 675522cf91fSBenjamin Gaignard WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); 676522cf91fSBenjamin Gaignard 677f453ba04SDave Airlie crtc->dev = dev; 678f453ba04SDave Airlie crtc->funcs = funcs; 6797c80e128SRob Clark crtc->invert_dimensions = false; 680f453ba04SDave Airlie 68151fd371bSRob Clark drm_modeset_lock_init(&crtc->mutex); 6826bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 6836bfc56aaSVille Syrjälä if (ret) 684baf698b0SDaniel Vetter return ret; 685f453ba04SDave Airlie 686bffd9de0SPaulo Zanoni crtc->base.properties = &crtc->properties; 687bffd9de0SPaulo Zanoni 68851fd371bSRob Clark list_add_tail(&crtc->head, &config->crtc_list); 68951fd371bSRob Clark config->num_crtc++; 6906bfc56aaSVille Syrjälä 691e13161afSMatt Roper crtc->primary = primary; 692fc1d3e44SMatt Roper crtc->cursor = cursor; 693e13161afSMatt Roper if (primary) 694e13161afSMatt Roper primary->possible_crtcs = 1 << drm_crtc_index(crtc); 695fc1d3e44SMatt Roper if (cursor) 696fc1d3e44SMatt Roper cursor->possible_crtcs = 1 << drm_crtc_index(crtc); 697e13161afSMatt Roper 698eab3bbefSDaniel Vetter if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 699eab3bbefSDaniel Vetter drm_object_attach_property(&crtc->base, config->prop_active, 0); 700955f3c33SDaniel Stone drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); 701eab3bbefSDaniel Vetter } 702eab3bbefSDaniel Vetter 703baf698b0SDaniel Vetter return 0; 704f453ba04SDave Airlie } 705e13161afSMatt Roper EXPORT_SYMBOL(drm_crtc_init_with_planes); 706f453ba04SDave Airlie 707f453ba04SDave Airlie /** 708ad6f5c34SVille Syrjälä * drm_crtc_cleanup - Clean up the core crtc usage 709f453ba04SDave Airlie * @crtc: CRTC to cleanup 710f453ba04SDave Airlie * 711ad6f5c34SVille Syrjälä * This function cleans up @crtc and removes it from the DRM mode setting 712ad6f5c34SVille Syrjälä * core. Note that the function does *not* free the crtc structure itself, 713ad6f5c34SVille Syrjälä * this is the responsibility of the caller. 714f453ba04SDave Airlie */ 715f453ba04SDave Airlie void drm_crtc_cleanup(struct drm_crtc *crtc) 716f453ba04SDave Airlie { 717f453ba04SDave Airlie struct drm_device *dev = crtc->dev; 718f453ba04SDave Airlie 719f453ba04SDave Airlie kfree(crtc->gamma_store); 720f453ba04SDave Airlie crtc->gamma_store = NULL; 721f453ba04SDave Airlie 72251fd371bSRob Clark drm_modeset_lock_fini(&crtc->mutex); 72351fd371bSRob Clark 724f453ba04SDave Airlie drm_mode_object_put(dev, &crtc->base); 725f453ba04SDave Airlie list_del(&crtc->head); 726f453ba04SDave Airlie dev->mode_config.num_crtc--; 7273009c037SThierry Reding 7283009c037SThierry Reding WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); 7293009c037SThierry Reding if (crtc->state && crtc->funcs->atomic_destroy_state) 7303009c037SThierry Reding crtc->funcs->atomic_destroy_state(crtc, crtc->state); 731a18c0af1SThierry Reding 732a18c0af1SThierry Reding memset(crtc, 0, sizeof(*crtc)); 733f453ba04SDave Airlie } 734f453ba04SDave Airlie EXPORT_SYMBOL(drm_crtc_cleanup); 735f453ba04SDave Airlie 736f453ba04SDave Airlie /** 737db5f7a6eSRussell King * drm_crtc_index - find the index of a registered CRTC 738db5f7a6eSRussell King * @crtc: CRTC to find index for 739db5f7a6eSRussell King * 740db5f7a6eSRussell King * Given a registered CRTC, return the index of that CRTC within a DRM 741db5f7a6eSRussell King * device's list of CRTCs. 742db5f7a6eSRussell King */ 743db5f7a6eSRussell King unsigned int drm_crtc_index(struct drm_crtc *crtc) 744db5f7a6eSRussell King { 745db5f7a6eSRussell King unsigned int index = 0; 746db5f7a6eSRussell King struct drm_crtc *tmp; 747db5f7a6eSRussell King 748e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) { 749db5f7a6eSRussell King if (tmp == crtc) 750db5f7a6eSRussell King return index; 751db5f7a6eSRussell King 752db5f7a6eSRussell King index++; 753db5f7a6eSRussell King } 754db5f7a6eSRussell King 755db5f7a6eSRussell King BUG(); 756db5f7a6eSRussell King } 757db5f7a6eSRussell King EXPORT_SYMBOL(drm_crtc_index); 758db5f7a6eSRussell King 75986f422d5SLespiau, Damien /* 760f453ba04SDave Airlie * drm_mode_remove - remove and free a mode 761f453ba04SDave Airlie * @connector: connector list to modify 762f453ba04SDave Airlie * @mode: mode to remove 763f453ba04SDave Airlie * 764f453ba04SDave Airlie * Remove @mode from @connector's mode list, then free it. 765f453ba04SDave Airlie */ 76686f422d5SLespiau, Damien static void drm_mode_remove(struct drm_connector *connector, 767f453ba04SDave Airlie struct drm_display_mode *mode) 768f453ba04SDave Airlie { 769f453ba04SDave Airlie list_del(&mode->head); 770554f1d78SSascha Hauer drm_mode_destroy(connector->dev, mode); 771f453ba04SDave Airlie } 772f453ba04SDave Airlie 773f453ba04SDave Airlie /** 774b5571e9dSBoris Brezillon * drm_display_info_set_bus_formats - set the supported bus formats 775b5571e9dSBoris Brezillon * @info: display info to store bus formats in 776e37bfa1aSBoris Brezillon * @formats: array containing the supported bus formats 777e37bfa1aSBoris Brezillon * @num_formats: the number of entries in the fmts array 778b5571e9dSBoris Brezillon * 779b5571e9dSBoris Brezillon * Store the supported bus formats in display info structure. 780b5571e9dSBoris Brezillon * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for 781b5571e9dSBoris Brezillon * a full list of available formats. 782b5571e9dSBoris Brezillon */ 783b5571e9dSBoris Brezillon int drm_display_info_set_bus_formats(struct drm_display_info *info, 784b5571e9dSBoris Brezillon const u32 *formats, 785b5571e9dSBoris Brezillon unsigned int num_formats) 786b5571e9dSBoris Brezillon { 787b5571e9dSBoris Brezillon u32 *fmts = NULL; 788b5571e9dSBoris Brezillon 789b5571e9dSBoris Brezillon if (!formats && num_formats) 790b5571e9dSBoris Brezillon return -EINVAL; 791b5571e9dSBoris Brezillon 792b5571e9dSBoris Brezillon if (formats && num_formats) { 793b5571e9dSBoris Brezillon fmts = kmemdup(formats, sizeof(*formats) * num_formats, 794b5571e9dSBoris Brezillon GFP_KERNEL); 795944579c5SDan Carpenter if (!fmts) 796b5571e9dSBoris Brezillon return -ENOMEM; 797b5571e9dSBoris Brezillon } 798b5571e9dSBoris Brezillon 799b5571e9dSBoris Brezillon kfree(info->bus_formats); 800b5571e9dSBoris Brezillon info->bus_formats = fmts; 801b5571e9dSBoris Brezillon info->num_bus_formats = num_formats; 802b5571e9dSBoris Brezillon 803b5571e9dSBoris Brezillon return 0; 804b5571e9dSBoris Brezillon } 805b5571e9dSBoris Brezillon EXPORT_SYMBOL(drm_display_info_set_bus_formats); 806b5571e9dSBoris Brezillon 807b5571e9dSBoris Brezillon /** 808eaf99c74SChris Wilson * drm_connector_get_cmdline_mode - reads the user's cmdline mode 809eaf99c74SChris Wilson * @connector: connector to quwery 810eaf99c74SChris Wilson * 811eaf99c74SChris Wilson * The kernel supports per-connector configration of its consoles through 812eaf99c74SChris Wilson * use of the video= parameter. This function parses that option and 813eaf99c74SChris Wilson * extracts the user's specified mode (or enable/disable status) for a 814eaf99c74SChris Wilson * particular connector. This is typically only used during the early fbdev 815eaf99c74SChris Wilson * setup. 816eaf99c74SChris Wilson */ 817eaf99c74SChris Wilson static void drm_connector_get_cmdline_mode(struct drm_connector *connector) 818eaf99c74SChris Wilson { 819eaf99c74SChris Wilson struct drm_cmdline_mode *mode = &connector->cmdline_mode; 820eaf99c74SChris Wilson char *option = NULL; 821eaf99c74SChris Wilson 822eaf99c74SChris Wilson if (fb_get_options(connector->name, &option)) 823eaf99c74SChris Wilson return; 824eaf99c74SChris Wilson 825eaf99c74SChris Wilson if (!drm_mode_parse_command_line_for_connector(option, 826eaf99c74SChris Wilson connector, 827eaf99c74SChris Wilson mode)) 828eaf99c74SChris Wilson return; 829eaf99c74SChris Wilson 830eaf99c74SChris Wilson if (mode->force) { 831eaf99c74SChris Wilson const char *s; 832eaf99c74SChris Wilson 833eaf99c74SChris Wilson switch (mode->force) { 834eaf99c74SChris Wilson case DRM_FORCE_OFF: 835eaf99c74SChris Wilson s = "OFF"; 836eaf99c74SChris Wilson break; 837eaf99c74SChris Wilson case DRM_FORCE_ON_DIGITAL: 838eaf99c74SChris Wilson s = "ON - dig"; 839eaf99c74SChris Wilson break; 840eaf99c74SChris Wilson default: 841eaf99c74SChris Wilson case DRM_FORCE_ON: 842eaf99c74SChris Wilson s = "ON"; 843eaf99c74SChris Wilson break; 844eaf99c74SChris Wilson } 845eaf99c74SChris Wilson 846eaf99c74SChris Wilson DRM_INFO("forcing %s connector %s\n", connector->name, s); 847eaf99c74SChris Wilson connector->force = mode->force; 848eaf99c74SChris Wilson } 849eaf99c74SChris Wilson 850eaf99c74SChris Wilson DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", 851eaf99c74SChris Wilson connector->name, 852eaf99c74SChris Wilson mode->xres, mode->yres, 853eaf99c74SChris Wilson mode->refresh_specified ? mode->refresh : 60, 854eaf99c74SChris Wilson mode->rb ? " reduced blanking" : "", 855eaf99c74SChris Wilson mode->margins ? " with margins" : "", 856eaf99c74SChris Wilson mode->interlace ? " interlaced" : ""); 857eaf99c74SChris Wilson } 858eaf99c74SChris Wilson 859eaf99c74SChris Wilson /** 860f453ba04SDave Airlie * drm_connector_init - Init a preallocated connector 861f453ba04SDave Airlie * @dev: DRM device 862f453ba04SDave Airlie * @connector: the connector to init 863f453ba04SDave Airlie * @funcs: callbacks for this connector 864065a50edSDaniel Vetter * @connector_type: user visible type of the connector 865f453ba04SDave Airlie * 866f453ba04SDave Airlie * Initialises a preallocated connector. Connectors should be 867f453ba04SDave Airlie * subclassed as part of driver connector objects. 8686bfc56aaSVille Syrjälä * 869c8e32cc1SDaniel Vetter * Returns: 8706bfc56aaSVille Syrjälä * Zero on success, error code on failure. 871f453ba04SDave Airlie */ 8726bfc56aaSVille Syrjälä int drm_connector_init(struct drm_device *dev, 873f453ba04SDave Airlie struct drm_connector *connector, 874f453ba04SDave Airlie const struct drm_connector_funcs *funcs, 875f453ba04SDave Airlie int connector_type) 876f453ba04SDave Airlie { 877ae16c597SRob Clark struct drm_mode_config *config = &dev->mode_config; 8786bfc56aaSVille Syrjälä int ret; 879b21e3afeSIlia Mirkin struct ida *connector_ida = 880b21e3afeSIlia Mirkin &drm_connector_enum_list[connector_type].ida; 8816bfc56aaSVille Syrjälä 88284849903SDaniel Vetter drm_modeset_lock_all(dev); 883f453ba04SDave Airlie 8842ee39452SDave Airlie ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); 8856bfc56aaSVille Syrjälä if (ret) 8862abdd313SJani Nikula goto out_unlock; 8876bfc56aaSVille Syrjälä 8887e3bdf4aSPaulo Zanoni connector->base.properties = &connector->properties; 889f453ba04SDave Airlie connector->dev = dev; 890f453ba04SDave Airlie connector->funcs = funcs; 891f453ba04SDave Airlie connector->connector_type = connector_type; 892f453ba04SDave Airlie connector->connector_type_id = 893b21e3afeSIlia Mirkin ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); 894b21e3afeSIlia Mirkin if (connector->connector_type_id < 0) { 895b21e3afeSIlia Mirkin ret = connector->connector_type_id; 8962abdd313SJani Nikula goto out_put; 897b21e3afeSIlia Mirkin } 8982abdd313SJani Nikula connector->name = 8992abdd313SJani Nikula kasprintf(GFP_KERNEL, "%s-%d", 9002abdd313SJani Nikula drm_connector_enum_list[connector_type].name, 9012abdd313SJani Nikula connector->connector_type_id); 9022abdd313SJani Nikula if (!connector->name) { 9032abdd313SJani Nikula ret = -ENOMEM; 9042abdd313SJani Nikula goto out_put; 9052abdd313SJani Nikula } 9062abdd313SJani Nikula 907f453ba04SDave Airlie INIT_LIST_HEAD(&connector->probed_modes); 908f453ba04SDave Airlie INIT_LIST_HEAD(&connector->modes); 909f453ba04SDave Airlie connector->edid_blob_ptr = NULL; 9105e2cb2f6SDaniel Vetter connector->status = connector_status_unknown; 911f453ba04SDave Airlie 912eaf99c74SChris Wilson drm_connector_get_cmdline_mode(connector); 913eaf99c74SChris Wilson 914c7eb76f4SDaniel Vetter /* We should add connectors at the end to avoid upsetting the connector 915c7eb76f4SDaniel Vetter * index too much. */ 916ae16c597SRob Clark list_add_tail(&connector->head, &config->connector_list); 917ae16c597SRob Clark config->num_connector++; 918f453ba04SDave Airlie 919a7331e5cSThomas Hellstrom if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) 92058495563SRob Clark drm_object_attach_property(&connector->base, 921ae16c597SRob Clark config->edid_property, 922a7331e5cSThomas Hellstrom 0); 923f453ba04SDave Airlie 92458495563SRob Clark drm_object_attach_property(&connector->base, 925ae16c597SRob Clark config->dpms_property, 0); 926ae16c597SRob Clark 927ae16c597SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 928ae16c597SRob Clark drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); 929ae16c597SRob Clark } 930f453ba04SDave Airlie 93130f65707SThomas Wood connector->debugfs_entry = NULL; 93230f65707SThomas Wood 9332abdd313SJani Nikula out_put: 9342abdd313SJani Nikula if (ret) 9352abdd313SJani Nikula drm_mode_object_put(dev, &connector->base); 9362abdd313SJani Nikula 9372abdd313SJani Nikula out_unlock: 93884849903SDaniel Vetter drm_modeset_unlock_all(dev); 9396bfc56aaSVille Syrjälä 9406bfc56aaSVille Syrjälä return ret; 941f453ba04SDave Airlie } 942f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_init); 943f453ba04SDave Airlie 944f453ba04SDave Airlie /** 945f453ba04SDave Airlie * drm_connector_cleanup - cleans up an initialised connector 946f453ba04SDave Airlie * @connector: connector to cleanup 947f453ba04SDave Airlie * 948f453ba04SDave Airlie * Cleans up the connector but doesn't free the object. 949f453ba04SDave Airlie */ 950f453ba04SDave Airlie void drm_connector_cleanup(struct drm_connector *connector) 951f453ba04SDave Airlie { 952f453ba04SDave Airlie struct drm_device *dev = connector->dev; 953f453ba04SDave Airlie struct drm_display_mode *mode, *t; 954f453ba04SDave Airlie 95540d9b043SDave Airlie if (connector->tile_group) { 95640d9b043SDave Airlie drm_mode_put_tile_group(dev, connector->tile_group); 95740d9b043SDave Airlie connector->tile_group = NULL; 95840d9b043SDave Airlie } 95940d9b043SDave Airlie 960f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 961f453ba04SDave Airlie drm_mode_remove(connector, mode); 962f453ba04SDave Airlie 963f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->modes, head) 964f453ba04SDave Airlie drm_mode_remove(connector, mode); 965f453ba04SDave Airlie 966b21e3afeSIlia Mirkin ida_remove(&drm_connector_enum_list[connector->connector_type].ida, 967b21e3afeSIlia Mirkin connector->connector_type_id); 968b21e3afeSIlia Mirkin 969b5571e9dSBoris Brezillon kfree(connector->display_info.bus_formats); 970f453ba04SDave Airlie drm_mode_object_put(dev, &connector->base); 9712abdd313SJani Nikula kfree(connector->name); 9722abdd313SJani Nikula connector->name = NULL; 973f453ba04SDave Airlie list_del(&connector->head); 9746380c509SJoonyoung Shim dev->mode_config.num_connector--; 9753009c037SThierry Reding 9763009c037SThierry Reding WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); 9773009c037SThierry Reding if (connector->state && connector->funcs->atomic_destroy_state) 9783009c037SThierry Reding connector->funcs->atomic_destroy_state(connector, 9793009c037SThierry Reding connector->state); 980a18c0af1SThierry Reding 981a18c0af1SThierry Reding memset(connector, 0, sizeof(*connector)); 982f453ba04SDave Airlie } 983f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_cleanup); 984f453ba04SDave Airlie 985c8e32cc1SDaniel Vetter /** 98610f637bfSDaniel Vetter * drm_connector_index - find the index of a registered connector 98710f637bfSDaniel Vetter * @connector: connector to find index for 98810f637bfSDaniel Vetter * 98910f637bfSDaniel Vetter * Given a registered connector, return the index of that connector within a DRM 99010f637bfSDaniel Vetter * device's list of connectors. 99110f637bfSDaniel Vetter */ 99210f637bfSDaniel Vetter unsigned int drm_connector_index(struct drm_connector *connector) 99310f637bfSDaniel Vetter { 99410f637bfSDaniel Vetter unsigned int index = 0; 99510f637bfSDaniel Vetter struct drm_connector *tmp; 996c7eb76f4SDaniel Vetter struct drm_mode_config *config = &connector->dev->mode_config; 997c7eb76f4SDaniel Vetter 998c7eb76f4SDaniel Vetter WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); 99910f637bfSDaniel Vetter 10009a9f5ce8SDaniel Vetter drm_for_each_connector(tmp, connector->dev) { 100110f637bfSDaniel Vetter if (tmp == connector) 100210f637bfSDaniel Vetter return index; 100310f637bfSDaniel Vetter 100410f637bfSDaniel Vetter index++; 100510f637bfSDaniel Vetter } 100610f637bfSDaniel Vetter 100710f637bfSDaniel Vetter BUG(); 100810f637bfSDaniel Vetter } 100910f637bfSDaniel Vetter EXPORT_SYMBOL(drm_connector_index); 101010f637bfSDaniel Vetter 101110f637bfSDaniel Vetter /** 101234ea3d38SThomas Wood * drm_connector_register - register a connector 101334ea3d38SThomas Wood * @connector: the connector to register 101434ea3d38SThomas Wood * 101534ea3d38SThomas Wood * Register userspace interfaces for a connector 101634ea3d38SThomas Wood * 101734ea3d38SThomas Wood * Returns: 101834ea3d38SThomas Wood * Zero on success, error code on failure. 101934ea3d38SThomas Wood */ 102034ea3d38SThomas Wood int drm_connector_register(struct drm_connector *connector) 102134ea3d38SThomas Wood { 102230f65707SThomas Wood int ret; 102330f65707SThomas Wood 10242ee39452SDave Airlie drm_mode_object_register(connector->dev, &connector->base); 10252ee39452SDave Airlie 102630f65707SThomas Wood ret = drm_sysfs_connector_add(connector); 102730f65707SThomas Wood if (ret) 102830f65707SThomas Wood return ret; 102930f65707SThomas Wood 103030f65707SThomas Wood ret = drm_debugfs_connector_add(connector); 103130f65707SThomas Wood if (ret) { 103230f65707SThomas Wood drm_sysfs_connector_remove(connector); 103330f65707SThomas Wood return ret; 103430f65707SThomas Wood } 103530f65707SThomas Wood 103630f65707SThomas Wood return 0; 103734ea3d38SThomas Wood } 103834ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_register); 103934ea3d38SThomas Wood 104034ea3d38SThomas Wood /** 104134ea3d38SThomas Wood * drm_connector_unregister - unregister a connector 104234ea3d38SThomas Wood * @connector: the connector to unregister 104334ea3d38SThomas Wood * 104434ea3d38SThomas Wood * Unregister userspace interfaces for a connector 104534ea3d38SThomas Wood */ 104634ea3d38SThomas Wood void drm_connector_unregister(struct drm_connector *connector) 104734ea3d38SThomas Wood { 104834ea3d38SThomas Wood drm_sysfs_connector_remove(connector); 104930f65707SThomas Wood drm_debugfs_connector_remove(connector); 105034ea3d38SThomas Wood } 105134ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_unregister); 105234ea3d38SThomas Wood 105334ea3d38SThomas Wood 105434ea3d38SThomas Wood /** 1055c8e32cc1SDaniel Vetter * drm_connector_unplug_all - unregister connector userspace interfaces 1056c8e32cc1SDaniel Vetter * @dev: drm device 1057c8e32cc1SDaniel Vetter * 1058c8e32cc1SDaniel Vetter * This function unregisters all connector userspace interfaces in sysfs. Should 1059c8e32cc1SDaniel Vetter * be call when the device is disconnected, e.g. from an usb driver's 1060c8e32cc1SDaniel Vetter * ->disconnect callback. 1061c8e32cc1SDaniel Vetter */ 1062cbc7e221SDave Airlie void drm_connector_unplug_all(struct drm_device *dev) 1063cbc7e221SDave Airlie { 1064cbc7e221SDave Airlie struct drm_connector *connector; 1065cbc7e221SDave Airlie 10669a9f5ce8SDaniel Vetter /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ 1067cbc7e221SDave Airlie list_for_each_entry(connector, &dev->mode_config.connector_list, head) 106834ea3d38SThomas Wood drm_connector_unregister(connector); 1069cbc7e221SDave Airlie 1070cbc7e221SDave Airlie } 1071cbc7e221SDave Airlie EXPORT_SYMBOL(drm_connector_unplug_all); 1072cbc7e221SDave Airlie 1073c8e32cc1SDaniel Vetter /** 1074c8e32cc1SDaniel Vetter * drm_encoder_init - Init a preallocated encoder 1075c8e32cc1SDaniel Vetter * @dev: drm device 1076c8e32cc1SDaniel Vetter * @encoder: the encoder to init 1077c8e32cc1SDaniel Vetter * @funcs: callbacks for this encoder 1078c8e32cc1SDaniel Vetter * @encoder_type: user visible type of the encoder 1079c8e32cc1SDaniel Vetter * 1080c8e32cc1SDaniel Vetter * Initialises a preallocated encoder. Encoder should be 1081c8e32cc1SDaniel Vetter * subclassed as part of driver encoder objects. 1082c8e32cc1SDaniel Vetter * 1083c8e32cc1SDaniel Vetter * Returns: 1084c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 1085c8e32cc1SDaniel Vetter */ 10866bfc56aaSVille Syrjälä int drm_encoder_init(struct drm_device *dev, 1087f453ba04SDave Airlie struct drm_encoder *encoder, 1088f453ba04SDave Airlie const struct drm_encoder_funcs *funcs, 1089f453ba04SDave Airlie int encoder_type) 1090f453ba04SDave Airlie { 10916bfc56aaSVille Syrjälä int ret; 10926bfc56aaSVille Syrjälä 109384849903SDaniel Vetter drm_modeset_lock_all(dev); 1094f453ba04SDave Airlie 10956bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); 10966bfc56aaSVille Syrjälä if (ret) 1097e5748946SJani Nikula goto out_unlock; 1098f453ba04SDave Airlie 10996bfc56aaSVille Syrjälä encoder->dev = dev; 1100f453ba04SDave Airlie encoder->encoder_type = encoder_type; 1101f453ba04SDave Airlie encoder->funcs = funcs; 1102e5748946SJani Nikula encoder->name = kasprintf(GFP_KERNEL, "%s-%d", 1103e5748946SJani Nikula drm_encoder_enum_list[encoder_type].name, 1104e5748946SJani Nikula encoder->base.id); 1105e5748946SJani Nikula if (!encoder->name) { 1106e5748946SJani Nikula ret = -ENOMEM; 1107e5748946SJani Nikula goto out_put; 1108e5748946SJani Nikula } 1109f453ba04SDave Airlie 1110f453ba04SDave Airlie list_add_tail(&encoder->head, &dev->mode_config.encoder_list); 1111f453ba04SDave Airlie dev->mode_config.num_encoder++; 1112f453ba04SDave Airlie 1113e5748946SJani Nikula out_put: 1114e5748946SJani Nikula if (ret) 1115e5748946SJani Nikula drm_mode_object_put(dev, &encoder->base); 1116e5748946SJani Nikula 1117e5748946SJani Nikula out_unlock: 111884849903SDaniel Vetter drm_modeset_unlock_all(dev); 11196bfc56aaSVille Syrjälä 11206bfc56aaSVille Syrjälä return ret; 1121f453ba04SDave Airlie } 1122f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_init); 1123f453ba04SDave Airlie 1124c8e32cc1SDaniel Vetter /** 1125c8e32cc1SDaniel Vetter * drm_encoder_cleanup - cleans up an initialised encoder 1126c8e32cc1SDaniel Vetter * @encoder: encoder to cleanup 1127c8e32cc1SDaniel Vetter * 1128c8e32cc1SDaniel Vetter * Cleans up the encoder but doesn't free the object. 1129c8e32cc1SDaniel Vetter */ 1130f453ba04SDave Airlie void drm_encoder_cleanup(struct drm_encoder *encoder) 1131f453ba04SDave Airlie { 1132f453ba04SDave Airlie struct drm_device *dev = encoder->dev; 11334dfd909fSThierry Reding 113484849903SDaniel Vetter drm_modeset_lock_all(dev); 1135f453ba04SDave Airlie drm_mode_object_put(dev, &encoder->base); 1136e5748946SJani Nikula kfree(encoder->name); 1137f453ba04SDave Airlie list_del(&encoder->head); 11386380c509SJoonyoung Shim dev->mode_config.num_encoder--; 113984849903SDaniel Vetter drm_modeset_unlock_all(dev); 1140a18c0af1SThierry Reding 1141a18c0af1SThierry Reding memset(encoder, 0, sizeof(*encoder)); 1142f453ba04SDave Airlie } 1143f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_cleanup); 1144f453ba04SDave Airlie 114535f2c3aeSVille Syrjälä /** 1146dc415ff9SMatt Roper * drm_universal_plane_init - Initialize a new universal plane object 114735f2c3aeSVille Syrjälä * @dev: DRM device 114835f2c3aeSVille Syrjälä * @plane: plane object to init 114935f2c3aeSVille Syrjälä * @possible_crtcs: bitmask of possible CRTCs 115035f2c3aeSVille Syrjälä * @funcs: callbacks for the new plane 115135f2c3aeSVille Syrjälä * @formats: array of supported formats (%DRM_FORMAT_*) 115235f2c3aeSVille Syrjälä * @format_count: number of elements in @formats 1153dc415ff9SMatt Roper * @type: type of plane (overlay, primary, cursor) 115435f2c3aeSVille Syrjälä * 1155dc415ff9SMatt Roper * Initializes a plane object of type @type. 115635f2c3aeSVille Syrjälä * 1157c8e32cc1SDaniel Vetter * Returns: 115835f2c3aeSVille Syrjälä * Zero on success, error code on failure. 115935f2c3aeSVille Syrjälä */ 1160dc415ff9SMatt Roper int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, 11618cf5c917SJesse Barnes unsigned long possible_crtcs, 11628cf5c917SJesse Barnes const struct drm_plane_funcs *funcs, 116345e3743aSThierry Reding const uint32_t *formats, unsigned int format_count, 1164dc415ff9SMatt Roper enum drm_plane_type type) 11658cf5c917SJesse Barnes { 11666b4959f4SRob Clark struct drm_mode_config *config = &dev->mode_config; 11676bfc56aaSVille Syrjälä int ret; 11686bfc56aaSVille Syrjälä 11696bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); 11706bfc56aaSVille Syrjälä if (ret) 1171baf698b0SDaniel Vetter return ret; 11726bfc56aaSVille Syrjälä 11734d02e2deSDaniel Vetter drm_modeset_lock_init(&plane->mutex); 11744d02e2deSDaniel Vetter 11754d93914aSRob Clark plane->base.properties = &plane->properties; 11768cf5c917SJesse Barnes plane->dev = dev; 11778cf5c917SJesse Barnes plane->funcs = funcs; 11782f6c5389SThierry Reding plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), 11798cf5c917SJesse Barnes GFP_KERNEL); 11808cf5c917SJesse Barnes if (!plane->format_types) { 11818cf5c917SJesse Barnes DRM_DEBUG_KMS("out of memory when allocating plane\n"); 11828cf5c917SJesse Barnes drm_mode_object_put(dev, &plane->base); 1183baf698b0SDaniel Vetter return -ENOMEM; 11848cf5c917SJesse Barnes } 11858cf5c917SJesse Barnes 1186308e5bcbSJesse Barnes memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); 11878cf5c917SJesse Barnes plane->format_count = format_count; 11888cf5c917SJesse Barnes plane->possible_crtcs = possible_crtcs; 1189dc415ff9SMatt Roper plane->type = type; 11908cf5c917SJesse Barnes 11916b4959f4SRob Clark list_add_tail(&plane->head, &config->plane_list); 11926b4959f4SRob Clark config->num_total_plane++; 1193e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 11946b4959f4SRob Clark config->num_overlay_plane++; 11958cf5c917SJesse Barnes 11969922ab5aSRob Clark drm_object_attach_property(&plane->base, 11976b4959f4SRob Clark config->plane_type_property, 11989922ab5aSRob Clark plane->type); 11999922ab5aSRob Clark 12006b4959f4SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 12016b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_fb_id, 0); 12026b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); 12036b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); 12046b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); 12056b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); 12066b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); 12076b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_x, 0); 12086b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_y, 0); 12096b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_w, 0); 12106b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_h, 0); 12116b4959f4SRob Clark } 12126b4959f4SRob Clark 1213baf698b0SDaniel Vetter return 0; 12148cf5c917SJesse Barnes } 1215dc415ff9SMatt Roper EXPORT_SYMBOL(drm_universal_plane_init); 1216dc415ff9SMatt Roper 1217dc415ff9SMatt Roper /** 1218dc415ff9SMatt Roper * drm_plane_init - Initialize a legacy plane 1219dc415ff9SMatt Roper * @dev: DRM device 1220dc415ff9SMatt Roper * @plane: plane object to init 1221dc415ff9SMatt Roper * @possible_crtcs: bitmask of possible CRTCs 1222dc415ff9SMatt Roper * @funcs: callbacks for the new plane 1223dc415ff9SMatt Roper * @formats: array of supported formats (%DRM_FORMAT_*) 1224dc415ff9SMatt Roper * @format_count: number of elements in @formats 1225dc415ff9SMatt Roper * @is_primary: plane type (primary vs overlay) 1226dc415ff9SMatt Roper * 1227dc415ff9SMatt Roper * Legacy API to initialize a DRM plane. 1228dc415ff9SMatt Roper * 1229dc415ff9SMatt Roper * New drivers should call drm_universal_plane_init() instead. 1230dc415ff9SMatt Roper * 1231dc415ff9SMatt Roper * Returns: 1232dc415ff9SMatt Roper * Zero on success, error code on failure. 1233dc415ff9SMatt Roper */ 1234dc415ff9SMatt Roper int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, 1235dc415ff9SMatt Roper unsigned long possible_crtcs, 1236dc415ff9SMatt Roper const struct drm_plane_funcs *funcs, 123745e3743aSThierry Reding const uint32_t *formats, unsigned int format_count, 1238dc415ff9SMatt Roper bool is_primary) 1239dc415ff9SMatt Roper { 1240dc415ff9SMatt Roper enum drm_plane_type type; 1241dc415ff9SMatt Roper 1242dc415ff9SMatt Roper type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; 1243dc415ff9SMatt Roper return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, 1244dc415ff9SMatt Roper formats, format_count, type); 1245dc415ff9SMatt Roper } 12468cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_init); 12478cf5c917SJesse Barnes 124835f2c3aeSVille Syrjälä /** 124935f2c3aeSVille Syrjälä * drm_plane_cleanup - Clean up the core plane usage 125035f2c3aeSVille Syrjälä * @plane: plane to cleanup 125135f2c3aeSVille Syrjälä * 125235f2c3aeSVille Syrjälä * This function cleans up @plane and removes it from the DRM mode setting 125335f2c3aeSVille Syrjälä * core. Note that the function does *not* free the plane structure itself, 125435f2c3aeSVille Syrjälä * this is the responsibility of the caller. 125535f2c3aeSVille Syrjälä */ 12568cf5c917SJesse Barnes void drm_plane_cleanup(struct drm_plane *plane) 12578cf5c917SJesse Barnes { 12588cf5c917SJesse Barnes struct drm_device *dev = plane->dev; 12598cf5c917SJesse Barnes 126084849903SDaniel Vetter drm_modeset_lock_all(dev); 12618cf5c917SJesse Barnes kfree(plane->format_types); 12628cf5c917SJesse Barnes drm_mode_object_put(dev, &plane->base); 1263dc415ff9SMatt Roper 1264dc415ff9SMatt Roper BUG_ON(list_empty(&plane->head)); 1265dc415ff9SMatt Roper 12668cf5c917SJesse Barnes list_del(&plane->head); 1267e27dde3eSMatt Roper dev->mode_config.num_total_plane--; 1268e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 1269e27dde3eSMatt Roper dev->mode_config.num_overlay_plane--; 127084849903SDaniel Vetter drm_modeset_unlock_all(dev); 12713009c037SThierry Reding 12723009c037SThierry Reding WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); 12733009c037SThierry Reding if (plane->state && plane->funcs->atomic_destroy_state) 12743009c037SThierry Reding plane->funcs->atomic_destroy_state(plane, plane->state); 1275a18c0af1SThierry Reding 1276a18c0af1SThierry Reding memset(plane, 0, sizeof(*plane)); 12778cf5c917SJesse Barnes } 12788cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_cleanup); 12798cf5c917SJesse Barnes 128035f2c3aeSVille Syrjälä /** 128110f637bfSDaniel Vetter * drm_plane_index - find the index of a registered plane 128210f637bfSDaniel Vetter * @plane: plane to find index for 128310f637bfSDaniel Vetter * 128410f637bfSDaniel Vetter * Given a registered plane, return the index of that CRTC within a DRM 128510f637bfSDaniel Vetter * device's list of planes. 128610f637bfSDaniel Vetter */ 128710f637bfSDaniel Vetter unsigned int drm_plane_index(struct drm_plane *plane) 128810f637bfSDaniel Vetter { 128910f637bfSDaniel Vetter unsigned int index = 0; 129010f637bfSDaniel Vetter struct drm_plane *tmp; 129110f637bfSDaniel Vetter 1292e4f62546SDaniel Vetter drm_for_each_plane(tmp, plane->dev) { 129310f637bfSDaniel Vetter if (tmp == plane) 129410f637bfSDaniel Vetter return index; 129510f637bfSDaniel Vetter 129610f637bfSDaniel Vetter index++; 129710f637bfSDaniel Vetter } 129810f637bfSDaniel Vetter 129910f637bfSDaniel Vetter BUG(); 130010f637bfSDaniel Vetter } 130110f637bfSDaniel Vetter EXPORT_SYMBOL(drm_plane_index); 130210f637bfSDaniel Vetter 130310f637bfSDaniel Vetter /** 1304f81338a5SChandra Konduru * drm_plane_from_index - find the registered plane at an index 1305f81338a5SChandra Konduru * @dev: DRM device 1306f81338a5SChandra Konduru * @idx: index of registered plane to find for 1307f81338a5SChandra Konduru * 1308f81338a5SChandra Konduru * Given a plane index, return the registered plane from DRM device's 1309f81338a5SChandra Konduru * list of planes with matching index. 1310f81338a5SChandra Konduru */ 1311f81338a5SChandra Konduru struct drm_plane * 1312f81338a5SChandra Konduru drm_plane_from_index(struct drm_device *dev, int idx) 1313f81338a5SChandra Konduru { 1314f81338a5SChandra Konduru struct drm_plane *plane; 1315f81338a5SChandra Konduru unsigned int i = 0; 1316f81338a5SChandra Konduru 13176295d607SDaniel Vetter drm_for_each_plane(plane, dev) { 1318f81338a5SChandra Konduru if (i == idx) 1319f81338a5SChandra Konduru return plane; 1320f81338a5SChandra Konduru i++; 1321f81338a5SChandra Konduru } 1322f81338a5SChandra Konduru return NULL; 1323f81338a5SChandra Konduru } 1324f81338a5SChandra Konduru EXPORT_SYMBOL(drm_plane_from_index); 1325f81338a5SChandra Konduru 1326f81338a5SChandra Konduru /** 132735f2c3aeSVille Syrjälä * drm_plane_force_disable - Forcibly disable a plane 132835f2c3aeSVille Syrjälä * @plane: plane to disable 132935f2c3aeSVille Syrjälä * 133035f2c3aeSVille Syrjälä * Forces the plane to be disabled. 133135f2c3aeSVille Syrjälä * 133235f2c3aeSVille Syrjälä * Used when the plane's current framebuffer is destroyed, 133335f2c3aeSVille Syrjälä * and when restoring fbdev mode. 133435f2c3aeSVille Syrjälä */ 13359125e618SVille Syrjälä void drm_plane_force_disable(struct drm_plane *plane) 13369125e618SVille Syrjälä { 13379125e618SVille Syrjälä int ret; 13389125e618SVille Syrjälä 13393d30a59bSDaniel Vetter if (!plane->fb) 13409125e618SVille Syrjälä return; 13419125e618SVille Syrjälä 13423d30a59bSDaniel Vetter plane->old_fb = plane->fb; 13439125e618SVille Syrjälä ret = plane->funcs->disable_plane(plane); 1344731cce48SDaniel Vetter if (ret) { 13459125e618SVille Syrjälä DRM_ERROR("failed to disable plane with busy fb\n"); 13463d30a59bSDaniel Vetter plane->old_fb = NULL; 1347731cce48SDaniel Vetter return; 1348731cce48SDaniel Vetter } 13499125e618SVille Syrjälä /* disconnect the plane from the fb and crtc: */ 1350220dd2bcSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 13513d30a59bSDaniel Vetter plane->old_fb = NULL; 13529125e618SVille Syrjälä plane->fb = NULL; 13539125e618SVille Syrjälä plane->crtc = NULL; 13549125e618SVille Syrjälä } 13559125e618SVille Syrjälä EXPORT_SYMBOL(drm_plane_force_disable); 13569125e618SVille Syrjälä 13576b4959f4SRob Clark static int drm_mode_create_standard_properties(struct drm_device *dev) 1358f453ba04SDave Airlie { 1359356af0e1SRob Clark struct drm_property *prop; 1360f453ba04SDave Airlie 1361f453ba04SDave Airlie /* 1362f453ba04SDave Airlie * Standard properties (apply to all connectors) 1363f453ba04SDave Airlie */ 1364356af0e1SRob Clark prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | 1365f453ba04SDave Airlie DRM_MODE_PROP_IMMUTABLE, 1366f453ba04SDave Airlie "EDID", 0); 1367356af0e1SRob Clark if (!prop) 1368356af0e1SRob Clark return -ENOMEM; 1369356af0e1SRob Clark dev->mode_config.edid_property = prop; 1370f453ba04SDave Airlie 1371356af0e1SRob Clark prop = drm_property_create_enum(dev, 0, 13724a67d391SSascha Hauer "DPMS", drm_dpms_enum_list, 13734a67d391SSascha Hauer ARRAY_SIZE(drm_dpms_enum_list)); 1374356af0e1SRob Clark if (!prop) 1375356af0e1SRob Clark return -ENOMEM; 1376356af0e1SRob Clark dev->mode_config.dpms_property = prop; 1377f453ba04SDave Airlie 1378356af0e1SRob Clark prop = drm_property_create(dev, 137943aba7ebSDave Airlie DRM_MODE_PROP_BLOB | 138043aba7ebSDave Airlie DRM_MODE_PROP_IMMUTABLE, 138143aba7ebSDave Airlie "PATH", 0); 1382356af0e1SRob Clark if (!prop) 1383356af0e1SRob Clark return -ENOMEM; 1384356af0e1SRob Clark dev->mode_config.path_property = prop; 138543aba7ebSDave Airlie 1386356af0e1SRob Clark prop = drm_property_create(dev, 13876f134d7bSDave Airlie DRM_MODE_PROP_BLOB | 13886f134d7bSDave Airlie DRM_MODE_PROP_IMMUTABLE, 13896f134d7bSDave Airlie "TILE", 0); 1390356af0e1SRob Clark if (!prop) 1391356af0e1SRob Clark return -ENOMEM; 1392356af0e1SRob Clark dev->mode_config.tile_property = prop; 13936f134d7bSDave Airlie 13946b4959f4SRob Clark prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 13959922ab5aSRob Clark "type", drm_plane_type_enum_list, 13969922ab5aSRob Clark ARRAY_SIZE(drm_plane_type_enum_list)); 13976b4959f4SRob Clark if (!prop) 13986b4959f4SRob Clark return -ENOMEM; 13996b4959f4SRob Clark dev->mode_config.plane_type_property = prop; 14006b4959f4SRob Clark 14016b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14026b4959f4SRob Clark "SRC_X", 0, UINT_MAX); 14036b4959f4SRob Clark if (!prop) 14046b4959f4SRob Clark return -ENOMEM; 14056b4959f4SRob Clark dev->mode_config.prop_src_x = prop; 14066b4959f4SRob Clark 14076b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14086b4959f4SRob Clark "SRC_Y", 0, UINT_MAX); 14096b4959f4SRob Clark if (!prop) 14106b4959f4SRob Clark return -ENOMEM; 14116b4959f4SRob Clark dev->mode_config.prop_src_y = prop; 14126b4959f4SRob Clark 14136b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14146b4959f4SRob Clark "SRC_W", 0, UINT_MAX); 14156b4959f4SRob Clark if (!prop) 14166b4959f4SRob Clark return -ENOMEM; 14176b4959f4SRob Clark dev->mode_config.prop_src_w = prop; 14186b4959f4SRob Clark 14196b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14206b4959f4SRob Clark "SRC_H", 0, UINT_MAX); 14216b4959f4SRob Clark if (!prop) 14226b4959f4SRob Clark return -ENOMEM; 14236b4959f4SRob Clark dev->mode_config.prop_src_h = prop; 14246b4959f4SRob Clark 14256b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 14266b4959f4SRob Clark "CRTC_X", INT_MIN, INT_MAX); 14276b4959f4SRob Clark if (!prop) 14286b4959f4SRob Clark return -ENOMEM; 14296b4959f4SRob Clark dev->mode_config.prop_crtc_x = prop; 14306b4959f4SRob Clark 14316b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 14326b4959f4SRob Clark "CRTC_Y", INT_MIN, INT_MAX); 14336b4959f4SRob Clark if (!prop) 14346b4959f4SRob Clark return -ENOMEM; 14356b4959f4SRob Clark dev->mode_config.prop_crtc_y = prop; 14366b4959f4SRob Clark 14376b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14386b4959f4SRob Clark "CRTC_W", 0, INT_MAX); 14396b4959f4SRob Clark if (!prop) 14406b4959f4SRob Clark return -ENOMEM; 14416b4959f4SRob Clark dev->mode_config.prop_crtc_w = prop; 14426b4959f4SRob Clark 14436b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14446b4959f4SRob Clark "CRTC_H", 0, INT_MAX); 14456b4959f4SRob Clark if (!prop) 14466b4959f4SRob Clark return -ENOMEM; 14476b4959f4SRob Clark dev->mode_config.prop_crtc_h = prop; 14486b4959f4SRob Clark 14496b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 14506b4959f4SRob Clark "FB_ID", DRM_MODE_OBJECT_FB); 14516b4959f4SRob Clark if (!prop) 14526b4959f4SRob Clark return -ENOMEM; 14536b4959f4SRob Clark dev->mode_config.prop_fb_id = prop; 14546b4959f4SRob Clark 14556b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 14566b4959f4SRob Clark "CRTC_ID", DRM_MODE_OBJECT_CRTC); 14576b4959f4SRob Clark if (!prop) 14586b4959f4SRob Clark return -ENOMEM; 14596b4959f4SRob Clark dev->mode_config.prop_crtc_id = prop; 14609922ab5aSRob Clark 1461eab3bbefSDaniel Vetter prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, 1462eab3bbefSDaniel Vetter "ACTIVE"); 1463eab3bbefSDaniel Vetter if (!prop) 1464eab3bbefSDaniel Vetter return -ENOMEM; 1465eab3bbefSDaniel Vetter dev->mode_config.prop_active = prop; 1466eab3bbefSDaniel Vetter 1467955f3c33SDaniel Stone prop = drm_property_create(dev, 1468955f3c33SDaniel Stone DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, 1469955f3c33SDaniel Stone "MODE_ID", 0); 1470955f3c33SDaniel Stone if (!prop) 1471955f3c33SDaniel Stone return -ENOMEM; 1472955f3c33SDaniel Stone dev->mode_config.prop_mode_id = prop; 1473955f3c33SDaniel Stone 14749922ab5aSRob Clark return 0; 14759922ab5aSRob Clark } 14769922ab5aSRob Clark 1477f453ba04SDave Airlie /** 1478f453ba04SDave Airlie * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 1479f453ba04SDave Airlie * @dev: DRM device 1480f453ba04SDave Airlie * 1481f453ba04SDave Airlie * Called by a driver the first time a DVI-I connector is made. 1482f453ba04SDave Airlie */ 1483f453ba04SDave Airlie int drm_mode_create_dvi_i_properties(struct drm_device *dev) 1484f453ba04SDave Airlie { 1485f453ba04SDave Airlie struct drm_property *dvi_i_selector; 1486f453ba04SDave Airlie struct drm_property *dvi_i_subconnector; 1487f453ba04SDave Airlie 1488f453ba04SDave Airlie if (dev->mode_config.dvi_i_select_subconnector_property) 1489f453ba04SDave Airlie return 0; 1490f453ba04SDave Airlie 1491f453ba04SDave Airlie dvi_i_selector = 14924a67d391SSascha Hauer drm_property_create_enum(dev, 0, 1493f453ba04SDave Airlie "select subconnector", 14944a67d391SSascha Hauer drm_dvi_i_select_enum_list, 1495f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_select_enum_list)); 1496f453ba04SDave Airlie dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 1497f453ba04SDave Airlie 14984a67d391SSascha Hauer dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1499f453ba04SDave Airlie "subconnector", 15004a67d391SSascha Hauer drm_dvi_i_subconnector_enum_list, 1501f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 1502f453ba04SDave Airlie dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 1503f453ba04SDave Airlie 1504f453ba04SDave Airlie return 0; 1505f453ba04SDave Airlie } 1506f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 1507f453ba04SDave Airlie 1508f453ba04SDave Airlie /** 1509f453ba04SDave Airlie * drm_create_tv_properties - create TV specific connector properties 1510f453ba04SDave Airlie * @dev: DRM device 1511f453ba04SDave Airlie * @num_modes: number of different TV formats (modes) supported 1512f453ba04SDave Airlie * @modes: array of pointers to strings containing name of each format 1513f453ba04SDave Airlie * 1514f453ba04SDave Airlie * Called by a driver's TV initialization routine, this function creates 1515f453ba04SDave Airlie * the TV specific connector properties for a given device. Caller is 1516f453ba04SDave Airlie * responsible for allocating a list of format names and passing them to 1517f453ba04SDave Airlie * this routine. 1518f453ba04SDave Airlie */ 15192f763312SThierry Reding int drm_mode_create_tv_properties(struct drm_device *dev, 15202f763312SThierry Reding unsigned int num_modes, 1521b7c914b3SVille Syrjälä const char * const modes[]) 1522f453ba04SDave Airlie { 1523f453ba04SDave Airlie struct drm_property *tv_selector; 1524f453ba04SDave Airlie struct drm_property *tv_subconnector; 15252f763312SThierry Reding unsigned int i; 1526f453ba04SDave Airlie 1527f453ba04SDave Airlie if (dev->mode_config.tv_select_subconnector_property) 1528f453ba04SDave Airlie return 0; 1529f453ba04SDave Airlie 1530f453ba04SDave Airlie /* 1531f453ba04SDave Airlie * Basic connector properties 1532f453ba04SDave Airlie */ 15334a67d391SSascha Hauer tv_selector = drm_property_create_enum(dev, 0, 1534f453ba04SDave Airlie "select subconnector", 15354a67d391SSascha Hauer drm_tv_select_enum_list, 1536f453ba04SDave Airlie ARRAY_SIZE(drm_tv_select_enum_list)); 1537f453ba04SDave Airlie dev->mode_config.tv_select_subconnector_property = tv_selector; 1538f453ba04SDave Airlie 1539f453ba04SDave Airlie tv_subconnector = 15404a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 15414a67d391SSascha Hauer "subconnector", 15424a67d391SSascha Hauer drm_tv_subconnector_enum_list, 1543f453ba04SDave Airlie ARRAY_SIZE(drm_tv_subconnector_enum_list)); 1544f453ba04SDave Airlie dev->mode_config.tv_subconnector_property = tv_subconnector; 1545f453ba04SDave Airlie 1546f453ba04SDave Airlie /* 1547f453ba04SDave Airlie * Other, TV specific properties: margins & TV modes. 1548f453ba04SDave Airlie */ 1549f453ba04SDave Airlie dev->mode_config.tv_left_margin_property = 1550d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "left margin", 0, 100); 1551f453ba04SDave Airlie 1552f453ba04SDave Airlie dev->mode_config.tv_right_margin_property = 1553d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "right margin", 0, 100); 1554f453ba04SDave Airlie 1555f453ba04SDave Airlie dev->mode_config.tv_top_margin_property = 1556d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "top margin", 0, 100); 1557f453ba04SDave Airlie 1558f453ba04SDave Airlie dev->mode_config.tv_bottom_margin_property = 1559d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "bottom margin", 0, 100); 1560f453ba04SDave Airlie 1561f453ba04SDave Airlie dev->mode_config.tv_mode_property = 1562f453ba04SDave Airlie drm_property_create(dev, DRM_MODE_PROP_ENUM, 1563f453ba04SDave Airlie "mode", num_modes); 1564f453ba04SDave Airlie for (i = 0; i < num_modes; i++) 1565f453ba04SDave Airlie drm_property_add_enum(dev->mode_config.tv_mode_property, i, 1566f453ba04SDave Airlie i, modes[i]); 1567f453ba04SDave Airlie 1568b6b7902eSFrancisco Jerez dev->mode_config.tv_brightness_property = 1569d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "brightness", 0, 100); 1570b6b7902eSFrancisco Jerez 1571b6b7902eSFrancisco Jerez dev->mode_config.tv_contrast_property = 1572d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "contrast", 0, 100); 1573b6b7902eSFrancisco Jerez 1574b6b7902eSFrancisco Jerez dev->mode_config.tv_flicker_reduction_property = 1575d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 1576b6b7902eSFrancisco Jerez 1577a75f0236SFrancisco Jerez dev->mode_config.tv_overscan_property = 1578d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "overscan", 0, 100); 1579a75f0236SFrancisco Jerez 1580a75f0236SFrancisco Jerez dev->mode_config.tv_saturation_property = 1581d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "saturation", 0, 100); 1582a75f0236SFrancisco Jerez 1583a75f0236SFrancisco Jerez dev->mode_config.tv_hue_property = 1584d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "hue", 0, 100); 1585a75f0236SFrancisco Jerez 1586f453ba04SDave Airlie return 0; 1587f453ba04SDave Airlie } 1588f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_tv_properties); 1589f453ba04SDave Airlie 1590f453ba04SDave Airlie /** 1591f453ba04SDave Airlie * drm_mode_create_scaling_mode_property - create scaling mode property 1592f453ba04SDave Airlie * @dev: DRM device 1593f453ba04SDave Airlie * 1594f453ba04SDave Airlie * Called by a driver the first time it's needed, must be attached to desired 1595f453ba04SDave Airlie * connectors. 1596f453ba04SDave Airlie */ 1597f453ba04SDave Airlie int drm_mode_create_scaling_mode_property(struct drm_device *dev) 1598f453ba04SDave Airlie { 1599f453ba04SDave Airlie struct drm_property *scaling_mode; 1600f453ba04SDave Airlie 1601f453ba04SDave Airlie if (dev->mode_config.scaling_mode_property) 1602f453ba04SDave Airlie return 0; 1603f453ba04SDave Airlie 1604f453ba04SDave Airlie scaling_mode = 16054a67d391SSascha Hauer drm_property_create_enum(dev, 0, "scaling mode", 16064a67d391SSascha Hauer drm_scaling_mode_enum_list, 1607f453ba04SDave Airlie ARRAY_SIZE(drm_scaling_mode_enum_list)); 1608f453ba04SDave Airlie 1609f453ba04SDave Airlie dev->mode_config.scaling_mode_property = scaling_mode; 1610f453ba04SDave Airlie 1611f453ba04SDave Airlie return 0; 1612f453ba04SDave Airlie } 1613f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 1614f453ba04SDave Airlie 1615f453ba04SDave Airlie /** 1616ff587e45SVandana Kannan * drm_mode_create_aspect_ratio_property - create aspect ratio property 1617ff587e45SVandana Kannan * @dev: DRM device 1618ff587e45SVandana Kannan * 1619ff587e45SVandana Kannan * Called by a driver the first time it's needed, must be attached to desired 1620ff587e45SVandana Kannan * connectors. 1621ff587e45SVandana Kannan * 1622ff587e45SVandana Kannan * Returns: 16231a498633SDaniel Vetter * Zero on success, negative errno on failure. 1624ff587e45SVandana Kannan */ 1625ff587e45SVandana Kannan int drm_mode_create_aspect_ratio_property(struct drm_device *dev) 1626ff587e45SVandana Kannan { 1627ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property) 1628ff587e45SVandana Kannan return 0; 1629ff587e45SVandana Kannan 1630ff587e45SVandana Kannan dev->mode_config.aspect_ratio_property = 1631ff587e45SVandana Kannan drm_property_create_enum(dev, 0, "aspect ratio", 1632ff587e45SVandana Kannan drm_aspect_ratio_enum_list, 1633ff587e45SVandana Kannan ARRAY_SIZE(drm_aspect_ratio_enum_list)); 1634ff587e45SVandana Kannan 1635ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property == NULL) 1636ff587e45SVandana Kannan return -ENOMEM; 1637ff587e45SVandana Kannan 1638ff587e45SVandana Kannan return 0; 1639ff587e45SVandana Kannan } 1640ff587e45SVandana Kannan EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); 1641ff587e45SVandana Kannan 1642ff587e45SVandana Kannan /** 1643884840aaSJakob Bornecrantz * drm_mode_create_dirty_property - create dirty property 1644884840aaSJakob Bornecrantz * @dev: DRM device 1645884840aaSJakob Bornecrantz * 1646884840aaSJakob Bornecrantz * Called by a driver the first time it's needed, must be attached to desired 1647884840aaSJakob Bornecrantz * connectors. 1648884840aaSJakob Bornecrantz */ 1649884840aaSJakob Bornecrantz int drm_mode_create_dirty_info_property(struct drm_device *dev) 1650884840aaSJakob Bornecrantz { 1651884840aaSJakob Bornecrantz struct drm_property *dirty_info; 1652884840aaSJakob Bornecrantz 1653884840aaSJakob Bornecrantz if (dev->mode_config.dirty_info_property) 1654884840aaSJakob Bornecrantz return 0; 1655884840aaSJakob Bornecrantz 1656884840aaSJakob Bornecrantz dirty_info = 16574a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1658884840aaSJakob Bornecrantz "dirty", 16594a67d391SSascha Hauer drm_dirty_info_enum_list, 1660884840aaSJakob Bornecrantz ARRAY_SIZE(drm_dirty_info_enum_list)); 1661884840aaSJakob Bornecrantz dev->mode_config.dirty_info_property = dirty_info; 1662884840aaSJakob Bornecrantz 1663884840aaSJakob Bornecrantz return 0; 1664884840aaSJakob Bornecrantz } 1665884840aaSJakob Bornecrantz EXPORT_SYMBOL(drm_mode_create_dirty_info_property); 1666884840aaSJakob Bornecrantz 16675bb2bbf5SDave Airlie /** 16685bb2bbf5SDave Airlie * drm_mode_create_suggested_offset_properties - create suggests offset properties 16695bb2bbf5SDave Airlie * @dev: DRM device 16705bb2bbf5SDave Airlie * 16715bb2bbf5SDave Airlie * Create the the suggested x/y offset property for connectors. 16725bb2bbf5SDave Airlie */ 16735bb2bbf5SDave Airlie int drm_mode_create_suggested_offset_properties(struct drm_device *dev) 16745bb2bbf5SDave Airlie { 16755bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) 16765bb2bbf5SDave Airlie return 0; 16775bb2bbf5SDave Airlie 16785bb2bbf5SDave Airlie dev->mode_config.suggested_x_property = 16795bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); 16805bb2bbf5SDave Airlie 16815bb2bbf5SDave Airlie dev->mode_config.suggested_y_property = 16825bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); 16835bb2bbf5SDave Airlie 16845bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property == NULL || 16855bb2bbf5SDave Airlie dev->mode_config.suggested_y_property == NULL) 16865bb2bbf5SDave Airlie return -ENOMEM; 16875bb2bbf5SDave Airlie return 0; 16885bb2bbf5SDave Airlie } 16895bb2bbf5SDave Airlie EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); 16905bb2bbf5SDave Airlie 1691f453ba04SDave Airlie /** 1692f453ba04SDave Airlie * drm_mode_getresources - get graphics configuration 1693065a50edSDaniel Vetter * @dev: drm device for the ioctl 1694065a50edSDaniel Vetter * @data: data pointer for the ioctl 1695065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1696f453ba04SDave Airlie * 1697f453ba04SDave Airlie * Construct a set of configuration description structures and return 1698f453ba04SDave Airlie * them to the user, including CRTC, connector and framebuffer configuration. 1699f453ba04SDave Airlie * 1700f453ba04SDave Airlie * Called by the user via ioctl. 1701f453ba04SDave Airlie * 1702c8e32cc1SDaniel Vetter * Returns: 17031a498633SDaniel Vetter * Zero on success, negative errno on failure. 1704f453ba04SDave Airlie */ 1705f453ba04SDave Airlie int drm_mode_getresources(struct drm_device *dev, void *data, 1706f453ba04SDave Airlie struct drm_file *file_priv) 1707f453ba04SDave Airlie { 1708f453ba04SDave Airlie struct drm_mode_card_res *card_res = data; 1709f453ba04SDave Airlie struct list_head *lh; 1710f453ba04SDave Airlie struct drm_framebuffer *fb; 1711f453ba04SDave Airlie struct drm_connector *connector; 1712f453ba04SDave Airlie struct drm_crtc *crtc; 1713f453ba04SDave Airlie struct drm_encoder *encoder; 1714f453ba04SDave Airlie int ret = 0; 1715f453ba04SDave Airlie int connector_count = 0; 1716f453ba04SDave Airlie int crtc_count = 0; 1717f453ba04SDave Airlie int fb_count = 0; 1718f453ba04SDave Airlie int encoder_count = 0; 17199c7060f7SDaniel Vetter int copied = 0; 1720f453ba04SDave Airlie uint32_t __user *fb_id; 1721f453ba04SDave Airlie uint32_t __user *crtc_id; 1722f453ba04SDave Airlie uint32_t __user *connector_id; 1723f453ba04SDave Airlie uint32_t __user *encoder_id; 1724f453ba04SDave Airlie 1725fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1726fb3b06c8SDave Airlie return -EINVAL; 1727fb3b06c8SDave Airlie 1728f453ba04SDave Airlie 17294b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 1730f453ba04SDave Airlie /* 1731f453ba04SDave Airlie * For the non-control nodes we need to limit the list of resources 1732f453ba04SDave Airlie * by IDs in the group list for this node 1733f453ba04SDave Airlie */ 1734f453ba04SDave Airlie list_for_each(lh, &file_priv->fbs) 1735f453ba04SDave Airlie fb_count++; 1736f453ba04SDave Airlie 17374b096ac1SDaniel Vetter /* handle this in 4 parts */ 17384b096ac1SDaniel Vetter /* FBs */ 17394b096ac1SDaniel Vetter if (card_res->count_fbs >= fb_count) { 17404b096ac1SDaniel Vetter copied = 0; 17414b096ac1SDaniel Vetter fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; 17424b096ac1SDaniel Vetter list_for_each_entry(fb, &file_priv->fbs, filp_head) { 17434b096ac1SDaniel Vetter if (put_user(fb->base.id, fb_id + copied)) { 17444b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 17454b096ac1SDaniel Vetter return -EFAULT; 17464b096ac1SDaniel Vetter } 17474b096ac1SDaniel Vetter copied++; 17484b096ac1SDaniel Vetter } 17494b096ac1SDaniel Vetter } 17504b096ac1SDaniel Vetter card_res->count_fbs = fb_count; 17514b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 17524b096ac1SDaniel Vetter 1753fcf93f69SDaniel Vetter /* mode_config.mutex protects the connector list against e.g. DP MST 1754fcf93f69SDaniel Vetter * connector hot-adding. CRTC/Plane lists are invariant. */ 1755fcf93f69SDaniel Vetter mutex_lock(&dev->mode_config.mutex); 1756e4f62546SDaniel Vetter drm_for_each_crtc(crtc, dev) 1757f453ba04SDave Airlie crtc_count++; 1758f453ba04SDave Airlie 17599a9f5ce8SDaniel Vetter drm_for_each_connector(connector, dev) 1760f453ba04SDave Airlie connector_count++; 1761f453ba04SDave Airlie 1762e4f62546SDaniel Vetter drm_for_each_encoder(encoder, dev) 1763f453ba04SDave Airlie encoder_count++; 1764f453ba04SDave Airlie 1765f453ba04SDave Airlie card_res->max_height = dev->mode_config.max_height; 1766f453ba04SDave Airlie card_res->min_height = dev->mode_config.min_height; 1767f453ba04SDave Airlie card_res->max_width = dev->mode_config.max_width; 1768f453ba04SDave Airlie card_res->min_width = dev->mode_config.min_width; 1769f453ba04SDave Airlie 1770f453ba04SDave Airlie /* CRTCs */ 1771f453ba04SDave Airlie if (card_res->count_crtcs >= crtc_count) { 1772f453ba04SDave Airlie copied = 0; 1773f453ba04SDave Airlie crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; 17746295d607SDaniel Vetter drm_for_each_crtc(crtc, dev) { 17759440106bSJerome Glisse DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1776f453ba04SDave Airlie if (put_user(crtc->base.id, crtc_id + copied)) { 1777f453ba04SDave Airlie ret = -EFAULT; 1778f453ba04SDave Airlie goto out; 1779f453ba04SDave Airlie } 1780f453ba04SDave Airlie copied++; 1781f453ba04SDave Airlie } 1782f453ba04SDave Airlie } 1783f453ba04SDave Airlie card_res->count_crtcs = crtc_count; 1784f453ba04SDave Airlie 1785f453ba04SDave Airlie /* Encoders */ 1786f453ba04SDave Airlie if (card_res->count_encoders >= encoder_count) { 1787f453ba04SDave Airlie copied = 0; 1788f453ba04SDave Airlie encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; 17896295d607SDaniel Vetter drm_for_each_encoder(encoder, dev) { 17909440106bSJerome Glisse DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, 179183a8cfd3SJani Nikula encoder->name); 1792f453ba04SDave Airlie if (put_user(encoder->base.id, encoder_id + 1793f453ba04SDave Airlie copied)) { 1794f453ba04SDave Airlie ret = -EFAULT; 1795f453ba04SDave Airlie goto out; 1796f453ba04SDave Airlie } 1797f453ba04SDave Airlie copied++; 1798f453ba04SDave Airlie } 1799f453ba04SDave Airlie } 1800f453ba04SDave Airlie card_res->count_encoders = encoder_count; 1801f453ba04SDave Airlie 1802f453ba04SDave Airlie /* Connectors */ 1803f453ba04SDave Airlie if (card_res->count_connectors >= connector_count) { 1804f453ba04SDave Airlie copied = 0; 1805f453ba04SDave Airlie connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; 18066295d607SDaniel Vetter drm_for_each_connector(connector, dev) { 18079440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 18089440106bSJerome Glisse connector->base.id, 180925933820SJani Nikula connector->name); 1810f453ba04SDave Airlie if (put_user(connector->base.id, 1811f453ba04SDave Airlie connector_id + copied)) { 1812f453ba04SDave Airlie ret = -EFAULT; 1813f453ba04SDave Airlie goto out; 1814f453ba04SDave Airlie } 1815f453ba04SDave Airlie copied++; 1816f453ba04SDave Airlie } 1817f453ba04SDave Airlie } 1818f453ba04SDave Airlie card_res->count_connectors = connector_count; 1819f453ba04SDave Airlie 18209440106bSJerome Glisse DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, 1821f453ba04SDave Airlie card_res->count_connectors, card_res->count_encoders); 1822f453ba04SDave Airlie 1823f453ba04SDave Airlie out: 1824fcf93f69SDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 1825f453ba04SDave Airlie return ret; 1826f453ba04SDave Airlie } 1827f453ba04SDave Airlie 1828f453ba04SDave Airlie /** 1829f453ba04SDave Airlie * drm_mode_getcrtc - get CRTC configuration 1830065a50edSDaniel Vetter * @dev: drm device for the ioctl 1831065a50edSDaniel Vetter * @data: data pointer for the ioctl 1832065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1833f453ba04SDave Airlie * 1834f453ba04SDave Airlie * Construct a CRTC configuration structure to return to the user. 1835f453ba04SDave Airlie * 1836f453ba04SDave Airlie * Called by the user via ioctl. 1837f453ba04SDave Airlie * 1838c8e32cc1SDaniel Vetter * Returns: 18391a498633SDaniel Vetter * Zero on success, negative errno on failure. 1840f453ba04SDave Airlie */ 1841f453ba04SDave Airlie int drm_mode_getcrtc(struct drm_device *dev, 1842f453ba04SDave Airlie void *data, struct drm_file *file_priv) 1843f453ba04SDave Airlie { 1844f453ba04SDave Airlie struct drm_mode_crtc *crtc_resp = data; 1845f453ba04SDave Airlie struct drm_crtc *crtc; 1846f453ba04SDave Airlie 1847fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1848fb3b06c8SDave Airlie return -EINVAL; 1849fb3b06c8SDave Airlie 1850a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_resp->crtc_id); 1851fcf93f69SDaniel Vetter if (!crtc) 1852fcf93f69SDaniel Vetter return -ENOENT; 1853f453ba04SDave Airlie 1854fcf93f69SDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 1855f453ba04SDave Airlie crtc_resp->gamma_size = crtc->gamma_size; 1856f4510a27SMatt Roper if (crtc->primary->fb) 1857f4510a27SMatt Roper crtc_resp->fb_id = crtc->primary->fb->base.id; 1858f453ba04SDave Airlie else 1859f453ba04SDave Airlie crtc_resp->fb_id = 0; 1860f453ba04SDave Airlie 186131c946e8SDaniel Vetter if (crtc->state) { 186231c946e8SDaniel Vetter crtc_resp->x = crtc->primary->state->src_x >> 16; 186331c946e8SDaniel Vetter crtc_resp->y = crtc->primary->state->src_y >> 16; 186431c946e8SDaniel Vetter if (crtc->state->enable) { 1865934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); 186631c946e8SDaniel Vetter crtc_resp->mode_valid = 1; 1867f453ba04SDave Airlie 186831c946e8SDaniel Vetter } else { 186931c946e8SDaniel Vetter crtc_resp->mode_valid = 0; 187031c946e8SDaniel Vetter } 187131c946e8SDaniel Vetter } else { 187231c946e8SDaniel Vetter crtc_resp->x = crtc->x; 187331c946e8SDaniel Vetter crtc_resp->y = crtc->y; 187431c946e8SDaniel Vetter if (crtc->enabled) { 1875934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); 1876f453ba04SDave Airlie crtc_resp->mode_valid = 1; 1877f453ba04SDave Airlie 1878f453ba04SDave Airlie } else { 1879f453ba04SDave Airlie crtc_resp->mode_valid = 0; 1880f453ba04SDave Airlie } 188131c946e8SDaniel Vetter } 1882fcf93f69SDaniel Vetter drm_modeset_unlock_crtc(crtc); 1883f453ba04SDave Airlie 1884baf698b0SDaniel Vetter return 0; 1885f453ba04SDave Airlie } 1886f453ba04SDave Airlie 188761d8e328SDamien Lespiau static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, 188861d8e328SDamien Lespiau const struct drm_file *file_priv) 188961d8e328SDamien Lespiau { 189061d8e328SDamien Lespiau /* 189161d8e328SDamien Lespiau * If user-space hasn't configured the driver to expose the stereo 3D 189261d8e328SDamien Lespiau * modes, don't expose them. 189361d8e328SDamien Lespiau */ 189461d8e328SDamien Lespiau if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) 189561d8e328SDamien Lespiau return false; 189661d8e328SDamien Lespiau 189761d8e328SDamien Lespiau return true; 189861d8e328SDamien Lespiau } 189961d8e328SDamien Lespiau 1900abd69c55SDaniel Vetter static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) 1901abd69c55SDaniel Vetter { 1902abd69c55SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 1903abd69c55SDaniel Vetter * protected by modeset locks, so check those first. */ 1904abd69c55SDaniel Vetter if (connector->state) 1905abd69c55SDaniel Vetter return connector->state->best_encoder; 1906abd69c55SDaniel Vetter return connector->encoder; 1907abd69c55SDaniel Vetter } 1908abd69c55SDaniel Vetter 190995cbf110SRob Clark /* helper for getconnector and getproperties ioctls */ 191088a48e29SRob Clark static int get_properties(struct drm_mode_object *obj, bool atomic, 191195cbf110SRob Clark uint32_t __user *prop_ptr, uint64_t __user *prop_values, 191295cbf110SRob Clark uint32_t *arg_count_props) 191395cbf110SRob Clark { 191488a48e29SRob Clark int props_count; 191588a48e29SRob Clark int i, ret, copied; 191688a48e29SRob Clark 191788a48e29SRob Clark props_count = obj->properties->count; 191888a48e29SRob Clark if (!atomic) 191988a48e29SRob Clark props_count -= obj->properties->atomic_count; 192095cbf110SRob Clark 192195cbf110SRob Clark if ((*arg_count_props >= props_count) && props_count) { 192288a48e29SRob Clark for (i = 0, copied = 0; copied < props_count; i++) { 192395cbf110SRob Clark struct drm_property *prop = obj->properties->properties[i]; 192495cbf110SRob Clark uint64_t val; 192595cbf110SRob Clark 192688a48e29SRob Clark if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) 192788a48e29SRob Clark continue; 192888a48e29SRob Clark 192995cbf110SRob Clark ret = drm_object_property_get_value(obj, prop, &val); 193095cbf110SRob Clark if (ret) 193195cbf110SRob Clark return ret; 193295cbf110SRob Clark 193395cbf110SRob Clark if (put_user(prop->base.id, prop_ptr + copied)) 193495cbf110SRob Clark return -EFAULT; 193595cbf110SRob Clark 193695cbf110SRob Clark if (put_user(val, prop_values + copied)) 193795cbf110SRob Clark return -EFAULT; 193895cbf110SRob Clark 193995cbf110SRob Clark copied++; 194095cbf110SRob Clark } 194195cbf110SRob Clark } 194295cbf110SRob Clark *arg_count_props = props_count; 194395cbf110SRob Clark 194495cbf110SRob Clark return 0; 194595cbf110SRob Clark } 194695cbf110SRob Clark 1947f453ba04SDave Airlie /** 1948f453ba04SDave Airlie * drm_mode_getconnector - get connector configuration 1949065a50edSDaniel Vetter * @dev: drm device for the ioctl 1950065a50edSDaniel Vetter * @data: data pointer for the ioctl 1951065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1952f453ba04SDave Airlie * 1953f453ba04SDave Airlie * Construct a connector configuration structure to return to the user. 1954f453ba04SDave Airlie * 1955f453ba04SDave Airlie * Called by the user via ioctl. 1956f453ba04SDave Airlie * 1957c8e32cc1SDaniel Vetter * Returns: 19581a498633SDaniel Vetter * Zero on success, negative errno on failure. 1959f453ba04SDave Airlie */ 1960f453ba04SDave Airlie int drm_mode_getconnector(struct drm_device *dev, void *data, 1961f453ba04SDave Airlie struct drm_file *file_priv) 1962f453ba04SDave Airlie { 1963f453ba04SDave Airlie struct drm_mode_get_connector *out_resp = data; 1964f453ba04SDave Airlie struct drm_connector *connector; 1965abd69c55SDaniel Vetter struct drm_encoder *encoder; 1966f453ba04SDave Airlie struct drm_display_mode *mode; 1967f453ba04SDave Airlie int mode_count = 0; 1968f453ba04SDave Airlie int encoders_count = 0; 1969f453ba04SDave Airlie int ret = 0; 1970f453ba04SDave Airlie int copied = 0; 1971f453ba04SDave Airlie int i; 1972f453ba04SDave Airlie struct drm_mode_modeinfo u_mode; 1973f453ba04SDave Airlie struct drm_mode_modeinfo __user *mode_ptr; 1974f453ba04SDave Airlie uint32_t __user *encoder_ptr; 1975f453ba04SDave Airlie 1976fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1977fb3b06c8SDave Airlie return -EINVAL; 1978fb3b06c8SDave Airlie 1979f453ba04SDave Airlie memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); 1980f453ba04SDave Airlie 19819440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); 1982f453ba04SDave Airlie 19837b24056bSDaniel Vetter mutex_lock(&dev->mode_config.mutex); 1984f453ba04SDave Airlie 1985a2b34e22SRob Clark connector = drm_connector_find(dev, out_resp->connector_id); 1986a2b34e22SRob Clark if (!connector) { 1987f27657f2SVille Syrjälä ret = -ENOENT; 198804bdf441STommi Rantala goto out_unlock; 1989f453ba04SDave Airlie } 1990f453ba04SDave Airlie 199101073b08SThierry Reding for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) 199201073b08SThierry Reding if (connector->encoder_ids[i] != 0) 1993f453ba04SDave Airlie encoders_count++; 1994f453ba04SDave Airlie 1995f453ba04SDave Airlie if (out_resp->count_modes == 0) { 1996f453ba04SDave Airlie connector->funcs->fill_modes(connector, 1997f453ba04SDave Airlie dev->mode_config.max_width, 1998f453ba04SDave Airlie dev->mode_config.max_height); 1999f453ba04SDave Airlie } 2000f453ba04SDave Airlie 2001f453ba04SDave Airlie /* delayed so we get modes regardless of pre-fill_modes state */ 2002f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) 200361d8e328SDamien Lespiau if (drm_mode_expose_to_userspace(mode, file_priv)) 2004f453ba04SDave Airlie mode_count++; 2005f453ba04SDave Airlie 2006f453ba04SDave Airlie out_resp->connector_id = connector->base.id; 2007f453ba04SDave Airlie out_resp->connector_type = connector->connector_type; 2008f453ba04SDave Airlie out_resp->connector_type_id = connector->connector_type_id; 2009f453ba04SDave Airlie out_resp->mm_width = connector->display_info.width_mm; 2010f453ba04SDave Airlie out_resp->mm_height = connector->display_info.height_mm; 2011f453ba04SDave Airlie out_resp->subpixel = connector->display_info.subpixel_order; 2012f453ba04SDave Airlie out_resp->connection = connector->status; 20132caa80e7SDaniel Vetter 20142caa80e7SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2015abd69c55SDaniel Vetter encoder = drm_connector_get_encoder(connector); 2016abd69c55SDaniel Vetter if (encoder) 2017abd69c55SDaniel Vetter out_resp->encoder_id = encoder->base.id; 2018f453ba04SDave Airlie else 2019f453ba04SDave Airlie out_resp->encoder_id = 0; 2020f453ba04SDave Airlie 2021f453ba04SDave Airlie /* 2022f453ba04SDave Airlie * This ioctl is called twice, once to determine how much space is 2023f453ba04SDave Airlie * needed, and the 2nd time to fill it. 2024f453ba04SDave Airlie */ 2025f453ba04SDave Airlie if ((out_resp->count_modes >= mode_count) && mode_count) { 2026f453ba04SDave Airlie copied = 0; 202781f6c7f8SVille Syrjälä mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 2028f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) { 202961d8e328SDamien Lespiau if (!drm_mode_expose_to_userspace(mode, file_priv)) 203061d8e328SDamien Lespiau continue; 203161d8e328SDamien Lespiau 2032934a8a89SDaniel Stone drm_mode_convert_to_umode(&u_mode, mode); 2033f453ba04SDave Airlie if (copy_to_user(mode_ptr + copied, 2034f453ba04SDave Airlie &u_mode, sizeof(u_mode))) { 2035f453ba04SDave Airlie ret = -EFAULT; 2036f453ba04SDave Airlie goto out; 2037f453ba04SDave Airlie } 2038f453ba04SDave Airlie copied++; 2039f453ba04SDave Airlie } 2040f453ba04SDave Airlie } 2041f453ba04SDave Airlie out_resp->count_modes = mode_count; 2042f453ba04SDave Airlie 204388a48e29SRob Clark ret = get_properties(&connector->base, file_priv->atomic, 204495cbf110SRob Clark (uint32_t __user *)(unsigned long)(out_resp->props_ptr), 204595cbf110SRob Clark (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), 204695cbf110SRob Clark &out_resp->count_props); 204722b8b13bSRob Clark if (ret) 2048f453ba04SDave Airlie goto out; 2049f453ba04SDave Airlie 2050f453ba04SDave Airlie if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 2051f453ba04SDave Airlie copied = 0; 205281f6c7f8SVille Syrjälä encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 2053f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 2054f453ba04SDave Airlie if (connector->encoder_ids[i] != 0) { 2055f453ba04SDave Airlie if (put_user(connector->encoder_ids[i], 2056f453ba04SDave Airlie encoder_ptr + copied)) { 2057f453ba04SDave Airlie ret = -EFAULT; 2058f453ba04SDave Airlie goto out; 2059f453ba04SDave Airlie } 2060f453ba04SDave Airlie copied++; 2061f453ba04SDave Airlie } 2062f453ba04SDave Airlie } 2063f453ba04SDave Airlie } 2064f453ba04SDave Airlie out_resp->count_encoders = encoders_count; 2065f453ba04SDave Airlie 2066f453ba04SDave Airlie out: 2067ccfc0865SRob Clark drm_modeset_unlock(&dev->mode_config.connection_mutex); 206804bdf441STommi Rantala 206904bdf441STommi Rantala out_unlock: 20707b24056bSDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 20717b24056bSDaniel Vetter 2072f453ba04SDave Airlie return ret; 2073f453ba04SDave Airlie } 2074f453ba04SDave Airlie 2075abd69c55SDaniel Vetter static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) 2076abd69c55SDaniel Vetter { 2077abd69c55SDaniel Vetter struct drm_connector *connector; 2078abd69c55SDaniel Vetter struct drm_device *dev = encoder->dev; 2079abd69c55SDaniel Vetter bool uses_atomic = false; 2080abd69c55SDaniel Vetter 2081abd69c55SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 2082abd69c55SDaniel Vetter * protected by modeset locks, so check those first. */ 20836295d607SDaniel Vetter drm_for_each_connector(connector, dev) { 2084abd69c55SDaniel Vetter if (!connector->state) 2085abd69c55SDaniel Vetter continue; 2086abd69c55SDaniel Vetter 2087abd69c55SDaniel Vetter uses_atomic = true; 2088abd69c55SDaniel Vetter 2089abd69c55SDaniel Vetter if (connector->state->best_encoder != encoder) 2090abd69c55SDaniel Vetter continue; 2091abd69c55SDaniel Vetter 2092abd69c55SDaniel Vetter return connector->state->crtc; 2093abd69c55SDaniel Vetter } 2094abd69c55SDaniel Vetter 2095abd69c55SDaniel Vetter /* Don't return stale data (e.g. pending async disable). */ 2096abd69c55SDaniel Vetter if (uses_atomic) 2097abd69c55SDaniel Vetter return NULL; 2098abd69c55SDaniel Vetter 2099abd69c55SDaniel Vetter return encoder->crtc; 2100abd69c55SDaniel Vetter } 2101abd69c55SDaniel Vetter 2102c8e32cc1SDaniel Vetter /** 2103c8e32cc1SDaniel Vetter * drm_mode_getencoder - get encoder configuration 2104c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2105c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2106c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2107c8e32cc1SDaniel Vetter * 2108c8e32cc1SDaniel Vetter * Construct a encoder configuration structure to return to the user. 2109c8e32cc1SDaniel Vetter * 2110c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2111c8e32cc1SDaniel Vetter * 2112c8e32cc1SDaniel Vetter * Returns: 21131a498633SDaniel Vetter * Zero on success, negative errno on failure. 2114c8e32cc1SDaniel Vetter */ 2115f453ba04SDave Airlie int drm_mode_getencoder(struct drm_device *dev, void *data, 2116f453ba04SDave Airlie struct drm_file *file_priv) 2117f453ba04SDave Airlie { 2118f453ba04SDave Airlie struct drm_mode_get_encoder *enc_resp = data; 2119f453ba04SDave Airlie struct drm_encoder *encoder; 2120abd69c55SDaniel Vetter struct drm_crtc *crtc; 2121f453ba04SDave Airlie 2122fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2123fb3b06c8SDave Airlie return -EINVAL; 2124fb3b06c8SDave Airlie 2125a2b34e22SRob Clark encoder = drm_encoder_find(dev, enc_resp->encoder_id); 2126fcf93f69SDaniel Vetter if (!encoder) 2127fcf93f69SDaniel Vetter return -ENOENT; 2128f453ba04SDave Airlie 2129fcf93f69SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2130abd69c55SDaniel Vetter crtc = drm_encoder_get_crtc(encoder); 2131abd69c55SDaniel Vetter if (crtc) 2132abd69c55SDaniel Vetter enc_resp->crtc_id = crtc->base.id; 2133f453ba04SDave Airlie else 2134f453ba04SDave Airlie enc_resp->crtc_id = 0; 2135fcf93f69SDaniel Vetter drm_modeset_unlock(&dev->mode_config.connection_mutex); 2136fcf93f69SDaniel Vetter 2137f453ba04SDave Airlie enc_resp->encoder_type = encoder->encoder_type; 2138f453ba04SDave Airlie enc_resp->encoder_id = encoder->base.id; 2139f453ba04SDave Airlie enc_resp->possible_crtcs = encoder->possible_crtcs; 2140f453ba04SDave Airlie enc_resp->possible_clones = encoder->possible_clones; 2141f453ba04SDave Airlie 2142baf698b0SDaniel Vetter return 0; 2143f453ba04SDave Airlie } 2144f453ba04SDave Airlie 2145f453ba04SDave Airlie /** 2146c8e32cc1SDaniel Vetter * drm_mode_getplane_res - enumerate all plane resources 21478cf5c917SJesse Barnes * @dev: DRM device 21488cf5c917SJesse Barnes * @data: ioctl data 21498cf5c917SJesse Barnes * @file_priv: DRM file info 21508cf5c917SJesse Barnes * 2151c8e32cc1SDaniel Vetter * Construct a list of plane ids to return to the user. 2152c8e32cc1SDaniel Vetter * 2153c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2154c8e32cc1SDaniel Vetter * 2155c8e32cc1SDaniel Vetter * Returns: 21561a498633SDaniel Vetter * Zero on success, negative errno on failure. 21578cf5c917SJesse Barnes */ 21588cf5c917SJesse Barnes int drm_mode_getplane_res(struct drm_device *dev, void *data, 21598cf5c917SJesse Barnes struct drm_file *file_priv) 21608cf5c917SJesse Barnes { 21618cf5c917SJesse Barnes struct drm_mode_get_plane_res *plane_resp = data; 21628cf5c917SJesse Barnes struct drm_mode_config *config; 21638cf5c917SJesse Barnes struct drm_plane *plane; 21648cf5c917SJesse Barnes uint32_t __user *plane_ptr; 2165fcf93f69SDaniel Vetter int copied = 0; 2166681e7ec7SMatt Roper unsigned num_planes; 21678cf5c917SJesse Barnes 21688cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 21698cf5c917SJesse Barnes return -EINVAL; 21708cf5c917SJesse Barnes 21718cf5c917SJesse Barnes config = &dev->mode_config; 21728cf5c917SJesse Barnes 2173681e7ec7SMatt Roper if (file_priv->universal_planes) 2174681e7ec7SMatt Roper num_planes = config->num_total_plane; 2175681e7ec7SMatt Roper else 2176681e7ec7SMatt Roper num_planes = config->num_overlay_plane; 2177681e7ec7SMatt Roper 21788cf5c917SJesse Barnes /* 21798cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 21808cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 21818cf5c917SJesse Barnes */ 2182681e7ec7SMatt Roper if (num_planes && 2183681e7ec7SMatt Roper (plane_resp->count_planes >= num_planes)) { 218481f6c7f8SVille Syrjälä plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; 21858cf5c917SJesse Barnes 2186fcf93f69SDaniel Vetter /* Plane lists are invariant, no locking needed. */ 2187e4f62546SDaniel Vetter drm_for_each_plane(plane, dev) { 2188681e7ec7SMatt Roper /* 2189681e7ec7SMatt Roper * Unless userspace set the 'universal planes' 2190681e7ec7SMatt Roper * capability bit, only advertise overlays. 2191681e7ec7SMatt Roper */ 2192681e7ec7SMatt Roper if (plane->type != DRM_PLANE_TYPE_OVERLAY && 2193681e7ec7SMatt Roper !file_priv->universal_planes) 2194e27dde3eSMatt Roper continue; 2195e27dde3eSMatt Roper 2196fcf93f69SDaniel Vetter if (put_user(plane->base.id, plane_ptr + copied)) 2197fcf93f69SDaniel Vetter return -EFAULT; 21988cf5c917SJesse Barnes copied++; 21998cf5c917SJesse Barnes } 22008cf5c917SJesse Barnes } 2201681e7ec7SMatt Roper plane_resp->count_planes = num_planes; 22028cf5c917SJesse Barnes 2203fcf93f69SDaniel Vetter return 0; 22048cf5c917SJesse Barnes } 22058cf5c917SJesse Barnes 22068cf5c917SJesse Barnes /** 2207c8e32cc1SDaniel Vetter * drm_mode_getplane - get plane configuration 22088cf5c917SJesse Barnes * @dev: DRM device 22098cf5c917SJesse Barnes * @data: ioctl data 22108cf5c917SJesse Barnes * @file_priv: DRM file info 22118cf5c917SJesse Barnes * 2212c8e32cc1SDaniel Vetter * Construct a plane configuration structure to return to the user. 2213c8e32cc1SDaniel Vetter * 2214c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2215c8e32cc1SDaniel Vetter * 2216c8e32cc1SDaniel Vetter * Returns: 22171a498633SDaniel Vetter * Zero on success, negative errno on failure. 22188cf5c917SJesse Barnes */ 22198cf5c917SJesse Barnes int drm_mode_getplane(struct drm_device *dev, void *data, 22208cf5c917SJesse Barnes struct drm_file *file_priv) 22218cf5c917SJesse Barnes { 22228cf5c917SJesse Barnes struct drm_mode_get_plane *plane_resp = data; 22238cf5c917SJesse Barnes struct drm_plane *plane; 22248cf5c917SJesse Barnes uint32_t __user *format_ptr; 22258cf5c917SJesse Barnes 22268cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 22278cf5c917SJesse Barnes return -EINVAL; 22288cf5c917SJesse Barnes 2229a2b34e22SRob Clark plane = drm_plane_find(dev, plane_resp->plane_id); 2230fcf93f69SDaniel Vetter if (!plane) 2231fcf93f69SDaniel Vetter return -ENOENT; 22328cf5c917SJesse Barnes 2233fcf93f69SDaniel Vetter drm_modeset_lock(&plane->mutex, NULL); 22348cf5c917SJesse Barnes if (plane->crtc) 22358cf5c917SJesse Barnes plane_resp->crtc_id = plane->crtc->base.id; 22368cf5c917SJesse Barnes else 22378cf5c917SJesse Barnes plane_resp->crtc_id = 0; 22388cf5c917SJesse Barnes 22398cf5c917SJesse Barnes if (plane->fb) 22408cf5c917SJesse Barnes plane_resp->fb_id = plane->fb->base.id; 22418cf5c917SJesse Barnes else 22428cf5c917SJesse Barnes plane_resp->fb_id = 0; 2243fcf93f69SDaniel Vetter drm_modeset_unlock(&plane->mutex); 22448cf5c917SJesse Barnes 22458cf5c917SJesse Barnes plane_resp->plane_id = plane->base.id; 22468cf5c917SJesse Barnes plane_resp->possible_crtcs = plane->possible_crtcs; 2247778ad903SVille Syrjälä plane_resp->gamma_size = 0; 22488cf5c917SJesse Barnes 22498cf5c917SJesse Barnes /* 22508cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 22518cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 22528cf5c917SJesse Barnes */ 22538cf5c917SJesse Barnes if (plane->format_count && 22548cf5c917SJesse Barnes (plane_resp->count_format_types >= plane->format_count)) { 225581f6c7f8SVille Syrjälä format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; 22568cf5c917SJesse Barnes if (copy_to_user(format_ptr, 22578cf5c917SJesse Barnes plane->format_types, 22588cf5c917SJesse Barnes sizeof(uint32_t) * plane->format_count)) { 2259fcf93f69SDaniel Vetter return -EFAULT; 22608cf5c917SJesse Barnes } 22618cf5c917SJesse Barnes } 22628cf5c917SJesse Barnes plane_resp->count_format_types = plane->format_count; 22638cf5c917SJesse Barnes 2264baf698b0SDaniel Vetter return 0; 22658cf5c917SJesse Barnes } 22668cf5c917SJesse Barnes 2267ead8610dSLaurent Pinchart /** 2268ead8610dSLaurent Pinchart * drm_plane_check_pixel_format - Check if the plane supports the pixel format 2269ead8610dSLaurent Pinchart * @plane: plane to check for format support 2270ead8610dSLaurent Pinchart * @format: the pixel format 2271ead8610dSLaurent Pinchart * 2272ead8610dSLaurent Pinchart * Returns: 2273ead8610dSLaurent Pinchart * Zero of @plane has @format in its list of supported pixel formats, -EINVAL 2274ead8610dSLaurent Pinchart * otherwise. 2275ead8610dSLaurent Pinchart */ 2276ead8610dSLaurent Pinchart int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) 2277ead8610dSLaurent Pinchart { 2278ead8610dSLaurent Pinchart unsigned int i; 2279ead8610dSLaurent Pinchart 2280ead8610dSLaurent Pinchart for (i = 0; i < plane->format_count; i++) { 2281ead8610dSLaurent Pinchart if (format == plane->format_types[i]) 2282ead8610dSLaurent Pinchart return 0; 2283ead8610dSLaurent Pinchart } 2284ead8610dSLaurent Pinchart 2285ead8610dSLaurent Pinchart return -EINVAL; 2286ead8610dSLaurent Pinchart } 2287ead8610dSLaurent Pinchart 2288b36552b3SMatt Roper /* 2289b36552b3SMatt Roper * setplane_internal - setplane handler for internal callers 22908cf5c917SJesse Barnes * 2291b36552b3SMatt Roper * Note that we assume an extra reference has already been taken on fb. If the 2292b36552b3SMatt Roper * update fails, this reference will be dropped before return; if it succeeds, 2293b36552b3SMatt Roper * the previous framebuffer (if any) will be unreferenced instead. 2294c8e32cc1SDaniel Vetter * 2295b36552b3SMatt Roper * src_{x,y,w,h} are provided in 16.16 fixed point format 22968cf5c917SJesse Barnes */ 2297f2b50c11SDaniel Vetter static int __setplane_internal(struct drm_plane *plane, 229817cfd91fSChris Wilson struct drm_crtc *crtc, 2299b36552b3SMatt Roper struct drm_framebuffer *fb, 2300b36552b3SMatt Roper int32_t crtc_x, int32_t crtc_y, 2301b36552b3SMatt Roper uint32_t crtc_w, uint32_t crtc_h, 2302b36552b3SMatt Roper /* src_{x,y,w,h} values are 16.16 fixed point */ 2303b36552b3SMatt Roper uint32_t src_x, uint32_t src_y, 2304b36552b3SMatt Roper uint32_t src_w, uint32_t src_h) 23058cf5c917SJesse Barnes { 23068cf5c917SJesse Barnes int ret = 0; 230742ef8789SVille Syrjälä unsigned int fb_width, fb_height; 23088cf5c917SJesse Barnes 23098cf5c917SJesse Barnes /* No fb means shut it down */ 2310b36552b3SMatt Roper if (!fb) { 23113d30a59bSDaniel Vetter plane->old_fb = plane->fb; 2312731cce48SDaniel Vetter ret = plane->funcs->disable_plane(plane); 2313731cce48SDaniel Vetter if (!ret) { 2314e5e3b44cSVille Syrjälä plane->crtc = NULL; 2315e5e3b44cSVille Syrjälä plane->fb = NULL; 2316731cce48SDaniel Vetter } else { 23173d30a59bSDaniel Vetter plane->old_fb = NULL; 2318731cce48SDaniel Vetter } 23198cf5c917SJesse Barnes goto out; 23208cf5c917SJesse Barnes } 23218cf5c917SJesse Barnes 23227f994f3fSMatt Roper /* Check whether this plane is usable on this CRTC */ 23237f994f3fSMatt Roper if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { 23247f994f3fSMatt Roper DRM_DEBUG_KMS("Invalid crtc for plane\n"); 23257f994f3fSMatt Roper ret = -EINVAL; 23267f994f3fSMatt Roper goto out; 23277f994f3fSMatt Roper } 23287f994f3fSMatt Roper 232962443be6SVille Syrjälä /* Check whether this plane supports the fb pixel format. */ 2330ead8610dSLaurent Pinchart ret = drm_plane_check_pixel_format(plane, fb->pixel_format); 2331ead8610dSLaurent Pinchart if (ret) { 23326ba6d03eSVille Syrjälä DRM_DEBUG_KMS("Invalid pixel format %s\n", 23336ba6d03eSVille Syrjälä drm_get_format_name(fb->pixel_format)); 233462443be6SVille Syrjälä goto out; 233562443be6SVille Syrjälä } 233662443be6SVille Syrjälä 23373968be94SMatt Roper /* Give drivers some help against integer overflows */ 23383968be94SMatt Roper if (crtc_w > INT_MAX || 23393968be94SMatt Roper crtc_x > INT_MAX - (int32_t) crtc_w || 23403968be94SMatt Roper crtc_h > INT_MAX || 23413968be94SMatt Roper crtc_y > INT_MAX - (int32_t) crtc_h) { 23423968be94SMatt Roper DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", 23433968be94SMatt Roper crtc_w, crtc_h, crtc_x, crtc_y); 23443968be94SMatt Roper return -ERANGE; 23453968be94SMatt Roper } 23463968be94SMatt Roper 23473968be94SMatt Roper 234842ef8789SVille Syrjälä fb_width = fb->width << 16; 234942ef8789SVille Syrjälä fb_height = fb->height << 16; 235042ef8789SVille Syrjälä 235142ef8789SVille Syrjälä /* Make sure source coordinates are inside the fb. */ 2352b36552b3SMatt Roper if (src_w > fb_width || 2353b36552b3SMatt Roper src_x > fb_width - src_w || 2354b36552b3SMatt Roper src_h > fb_height || 2355b36552b3SMatt Roper src_y > fb_height - src_h) { 235642ef8789SVille Syrjälä DRM_DEBUG_KMS("Invalid source coordinates " 235742ef8789SVille Syrjälä "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", 2358b36552b3SMatt Roper src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, 2359b36552b3SMatt Roper src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, 2360b36552b3SMatt Roper src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, 2361b36552b3SMatt Roper src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); 236242ef8789SVille Syrjälä ret = -ENOSPC; 236342ef8789SVille Syrjälä goto out; 236442ef8789SVille Syrjälä } 236542ef8789SVille Syrjälä 23663d30a59bSDaniel Vetter plane->old_fb = plane->fb; 23678cf5c917SJesse Barnes ret = plane->funcs->update_plane(plane, crtc, fb, 2368b36552b3SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 2369b36552b3SMatt Roper src_x, src_y, src_w, src_h); 23708cf5c917SJesse Barnes if (!ret) { 23718cf5c917SJesse Barnes plane->crtc = crtc; 23728cf5c917SJesse Barnes plane->fb = fb; 237335f8badcSDaniel Vetter fb = NULL; 23740fe27f06SDaniel Vetter } else { 23753d30a59bSDaniel Vetter plane->old_fb = NULL; 23768cf5c917SJesse Barnes } 23778cf5c917SJesse Barnes 23788cf5c917SJesse Barnes out: 23796c2a7532SDaniel Vetter if (fb) 23806c2a7532SDaniel Vetter drm_framebuffer_unreference(fb); 23813d30a59bSDaniel Vetter if (plane->old_fb) 23823d30a59bSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 23833d30a59bSDaniel Vetter plane->old_fb = NULL; 23848cf5c917SJesse Barnes 23858cf5c917SJesse Barnes return ret; 2386f2b50c11SDaniel Vetter } 2387b36552b3SMatt Roper 2388f2b50c11SDaniel Vetter static int setplane_internal(struct drm_plane *plane, 2389f2b50c11SDaniel Vetter struct drm_crtc *crtc, 2390f2b50c11SDaniel Vetter struct drm_framebuffer *fb, 2391f2b50c11SDaniel Vetter int32_t crtc_x, int32_t crtc_y, 2392f2b50c11SDaniel Vetter uint32_t crtc_w, uint32_t crtc_h, 2393f2b50c11SDaniel Vetter /* src_{x,y,w,h} values are 16.16 fixed point */ 2394f2b50c11SDaniel Vetter uint32_t src_x, uint32_t src_y, 2395f2b50c11SDaniel Vetter uint32_t src_w, uint32_t src_h) 2396f2b50c11SDaniel Vetter { 2397f2b50c11SDaniel Vetter int ret; 2398f2b50c11SDaniel Vetter 2399f2b50c11SDaniel Vetter drm_modeset_lock_all(plane->dev); 2400f2b50c11SDaniel Vetter ret = __setplane_internal(plane, crtc, fb, 2401f2b50c11SDaniel Vetter crtc_x, crtc_y, crtc_w, crtc_h, 2402f2b50c11SDaniel Vetter src_x, src_y, src_w, src_h); 2403f2b50c11SDaniel Vetter drm_modeset_unlock_all(plane->dev); 2404f2b50c11SDaniel Vetter 2405f2b50c11SDaniel Vetter return ret; 2406b36552b3SMatt Roper } 2407b36552b3SMatt Roper 2408b36552b3SMatt Roper /** 2409b36552b3SMatt Roper * drm_mode_setplane - configure a plane's configuration 2410b36552b3SMatt Roper * @dev: DRM device 2411b36552b3SMatt Roper * @data: ioctl data* 2412b36552b3SMatt Roper * @file_priv: DRM file info 2413b36552b3SMatt Roper * 2414b36552b3SMatt Roper * Set plane configuration, including placement, fb, scaling, and other factors. 2415b36552b3SMatt Roper * Or pass a NULL fb to disable (planes may be disabled without providing a 2416b36552b3SMatt Roper * valid crtc). 2417b36552b3SMatt Roper * 2418b36552b3SMatt Roper * Returns: 24191a498633SDaniel Vetter * Zero on success, negative errno on failure. 2420b36552b3SMatt Roper */ 2421b36552b3SMatt Roper int drm_mode_setplane(struct drm_device *dev, void *data, 2422b36552b3SMatt Roper struct drm_file *file_priv) 2423b36552b3SMatt Roper { 2424b36552b3SMatt Roper struct drm_mode_set_plane *plane_req = data; 2425b36552b3SMatt Roper struct drm_plane *plane; 2426b36552b3SMatt Roper struct drm_crtc *crtc = NULL; 2427b36552b3SMatt Roper struct drm_framebuffer *fb = NULL; 2428b36552b3SMatt Roper 2429b36552b3SMatt Roper if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2430b36552b3SMatt Roper return -EINVAL; 2431b36552b3SMatt Roper 2432b36552b3SMatt Roper /* 2433b36552b3SMatt Roper * First, find the plane, crtc, and fb objects. If not available, 2434b36552b3SMatt Roper * we don't bother to call the driver. 2435b36552b3SMatt Roper */ 2436933f622fSRob Clark plane = drm_plane_find(dev, plane_req->plane_id); 2437933f622fSRob Clark if (!plane) { 2438b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown plane ID %d\n", 2439b36552b3SMatt Roper plane_req->plane_id); 2440b36552b3SMatt Roper return -ENOENT; 2441b36552b3SMatt Roper } 2442b36552b3SMatt Roper 2443b36552b3SMatt Roper if (plane_req->fb_id) { 2444b36552b3SMatt Roper fb = drm_framebuffer_lookup(dev, plane_req->fb_id); 2445b36552b3SMatt Roper if (!fb) { 2446b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", 2447b36552b3SMatt Roper plane_req->fb_id); 2448b36552b3SMatt Roper return -ENOENT; 2449b36552b3SMatt Roper } 2450b36552b3SMatt Roper 2451933f622fSRob Clark crtc = drm_crtc_find(dev, plane_req->crtc_id); 2452933f622fSRob Clark if (!crtc) { 2453b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown crtc ID %d\n", 2454b36552b3SMatt Roper plane_req->crtc_id); 2455b36552b3SMatt Roper return -ENOENT; 2456b36552b3SMatt Roper } 2457b36552b3SMatt Roper } 2458b36552b3SMatt Roper 2459161d0dc1SMatt Roper /* 2460161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 2461161d0dc1SMatt Roper * framebuffer depending on success. 2462161d0dc1SMatt Roper */ 246317cfd91fSChris Wilson return setplane_internal(plane, crtc, fb, 2464b36552b3SMatt Roper plane_req->crtc_x, plane_req->crtc_y, 2465b36552b3SMatt Roper plane_req->crtc_w, plane_req->crtc_h, 2466b36552b3SMatt Roper plane_req->src_x, plane_req->src_y, 2467b36552b3SMatt Roper plane_req->src_w, plane_req->src_h); 24688cf5c917SJesse Barnes } 24698cf5c917SJesse Barnes 24708cf5c917SJesse Barnes /** 24712d13b679SDaniel Vetter * drm_mode_set_config_internal - helper to call ->set_config 24722d13b679SDaniel Vetter * @set: modeset config to set 24732d13b679SDaniel Vetter * 24742d13b679SDaniel Vetter * This is a little helper to wrap internal calls to the ->set_config driver 24752d13b679SDaniel Vetter * interface. The only thing it adds is correct refcounting dance. 2476c8e32cc1SDaniel Vetter * 2477c8e32cc1SDaniel Vetter * Returns: 24781a498633SDaniel Vetter * Zero on success, negative errno on failure. 24792d13b679SDaniel Vetter */ 24802d13b679SDaniel Vetter int drm_mode_set_config_internal(struct drm_mode_set *set) 24812d13b679SDaniel Vetter { 24822d13b679SDaniel Vetter struct drm_crtc *crtc = set->crtc; 24835cef29aaSDaniel Vetter struct drm_framebuffer *fb; 24845cef29aaSDaniel Vetter struct drm_crtc *tmp; 2485b0d12325SDaniel Vetter int ret; 24862d13b679SDaniel Vetter 24875cef29aaSDaniel Vetter /* 24885cef29aaSDaniel Vetter * NOTE: ->set_config can also disable other crtcs (if we steal all 24895cef29aaSDaniel Vetter * connectors from it), hence we need to refcount the fbs across all 24905cef29aaSDaniel Vetter * crtcs. Atomic modeset will have saner semantics ... 24915cef29aaSDaniel Vetter */ 2492e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) 24933d30a59bSDaniel Vetter tmp->primary->old_fb = tmp->primary->fb; 24945cef29aaSDaniel Vetter 2495b0d12325SDaniel Vetter fb = set->fb; 2496b0d12325SDaniel Vetter 2497b0d12325SDaniel Vetter ret = crtc->funcs->set_config(set); 2498b0d12325SDaniel Vetter if (ret == 0) { 2499e13161afSMatt Roper crtc->primary->crtc = crtc; 25000fe27f06SDaniel Vetter crtc->primary->fb = fb; 25015cef29aaSDaniel Vetter } 2502cc85e121SDaniel Vetter 2503e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) { 2504f4510a27SMatt Roper if (tmp->primary->fb) 2505f4510a27SMatt Roper drm_framebuffer_reference(tmp->primary->fb); 25063d30a59bSDaniel Vetter if (tmp->primary->old_fb) 25073d30a59bSDaniel Vetter drm_framebuffer_unreference(tmp->primary->old_fb); 25083d30a59bSDaniel Vetter tmp->primary->old_fb = NULL; 2509b0d12325SDaniel Vetter } 2510b0d12325SDaniel Vetter 2511b0d12325SDaniel Vetter return ret; 25122d13b679SDaniel Vetter } 25132d13b679SDaniel Vetter EXPORT_SYMBOL(drm_mode_set_config_internal); 25142d13b679SDaniel Vetter 2515af93629dSMatt Roper /** 2516ecb7e16bSGustavo Padovan * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode 2517ecb7e16bSGustavo Padovan * @mode: mode to query 2518ecb7e16bSGustavo Padovan * @hdisplay: hdisplay value to fill in 2519ecb7e16bSGustavo Padovan * @vdisplay: vdisplay value to fill in 2520ecb7e16bSGustavo Padovan * 2521ecb7e16bSGustavo Padovan * The vdisplay value will be doubled if the specified mode is a stereo mode of 2522ecb7e16bSGustavo Padovan * the appropriate layout. 2523ecb7e16bSGustavo Padovan */ 2524ecb7e16bSGustavo Padovan void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, 2525ecb7e16bSGustavo Padovan int *hdisplay, int *vdisplay) 2526ecb7e16bSGustavo Padovan { 2527ecb7e16bSGustavo Padovan struct drm_display_mode adjusted; 2528ecb7e16bSGustavo Padovan 2529ecb7e16bSGustavo Padovan drm_mode_copy(&adjusted, mode); 2530ecb7e16bSGustavo Padovan drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); 2531ecb7e16bSGustavo Padovan *hdisplay = adjusted.crtc_hdisplay; 2532ecb7e16bSGustavo Padovan *vdisplay = adjusted.crtc_vdisplay; 2533ecb7e16bSGustavo Padovan } 2534ecb7e16bSGustavo Padovan EXPORT_SYMBOL(drm_crtc_get_hv_timing); 2535ecb7e16bSGustavo Padovan 2536ecb7e16bSGustavo Padovan /** 2537af93629dSMatt Roper * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the 2538af93629dSMatt Roper * CRTC viewport 2539af93629dSMatt Roper * @crtc: CRTC that framebuffer will be displayed on 2540af93629dSMatt Roper * @x: x panning 2541af93629dSMatt Roper * @y: y panning 2542af93629dSMatt Roper * @mode: mode that framebuffer will be displayed under 2543af93629dSMatt Roper * @fb: framebuffer to check size of 2544c11e9283SDamien Lespiau */ 2545af93629dSMatt Roper int drm_crtc_check_viewport(const struct drm_crtc *crtc, 2546c11e9283SDamien Lespiau int x, int y, 2547c11e9283SDamien Lespiau const struct drm_display_mode *mode, 2548c11e9283SDamien Lespiau const struct drm_framebuffer *fb) 2549c11e9283SDamien Lespiau 2550c11e9283SDamien Lespiau { 2551c11e9283SDamien Lespiau int hdisplay, vdisplay; 2552c11e9283SDamien Lespiau 2553ecb7e16bSGustavo Padovan drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); 2554a0c1bbb0SDamien Lespiau 2555c11e9283SDamien Lespiau if (crtc->invert_dimensions) 2556c11e9283SDamien Lespiau swap(hdisplay, vdisplay); 2557c11e9283SDamien Lespiau 2558c11e9283SDamien Lespiau if (hdisplay > fb->width || 2559c11e9283SDamien Lespiau vdisplay > fb->height || 2560c11e9283SDamien Lespiau x > fb->width - hdisplay || 2561c11e9283SDamien Lespiau y > fb->height - vdisplay) { 2562c11e9283SDamien Lespiau DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", 2563c11e9283SDamien Lespiau fb->width, fb->height, hdisplay, vdisplay, x, y, 2564c11e9283SDamien Lespiau crtc->invert_dimensions ? " (inverted)" : ""); 2565c11e9283SDamien Lespiau return -ENOSPC; 2566c11e9283SDamien Lespiau } 2567c11e9283SDamien Lespiau 2568c11e9283SDamien Lespiau return 0; 2569c11e9283SDamien Lespiau } 2570af93629dSMatt Roper EXPORT_SYMBOL(drm_crtc_check_viewport); 2571c11e9283SDamien Lespiau 25722d13b679SDaniel Vetter /** 2573f453ba04SDave Airlie * drm_mode_setcrtc - set CRTC configuration 2574065a50edSDaniel Vetter * @dev: drm device for the ioctl 2575065a50edSDaniel Vetter * @data: data pointer for the ioctl 2576065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2577f453ba04SDave Airlie * 2578f453ba04SDave Airlie * Build a new CRTC configuration based on user request. 2579f453ba04SDave Airlie * 2580f453ba04SDave Airlie * Called by the user via ioctl. 2581f453ba04SDave Airlie * 2582c8e32cc1SDaniel Vetter * Returns: 25831a498633SDaniel Vetter * Zero on success, negative errno on failure. 2584f453ba04SDave Airlie */ 2585f453ba04SDave Airlie int drm_mode_setcrtc(struct drm_device *dev, void *data, 2586f453ba04SDave Airlie struct drm_file *file_priv) 2587f453ba04SDave Airlie { 2588f453ba04SDave Airlie struct drm_mode_config *config = &dev->mode_config; 2589f453ba04SDave Airlie struct drm_mode_crtc *crtc_req = data; 25906653cc8dSVille Syrjälä struct drm_crtc *crtc; 2591f453ba04SDave Airlie struct drm_connector **connector_set = NULL, *connector; 2592f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 2593f453ba04SDave Airlie struct drm_display_mode *mode = NULL; 2594f453ba04SDave Airlie struct drm_mode_set set; 2595f453ba04SDave Airlie uint32_t __user *set_connectors_ptr; 25964a1b0714SLaurent Pinchart int ret; 2597f453ba04SDave Airlie int i; 2598f453ba04SDave Airlie 2599fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2600fb3b06c8SDave Airlie return -EINVAL; 2601fb3b06c8SDave Airlie 260201447e9fSZhao Junwang /* 260301447e9fSZhao Junwang * Universal plane src offsets are only 16.16, prevent havoc for 260401447e9fSZhao Junwang * drivers using universal plane code internally. 260501447e9fSZhao Junwang */ 260601447e9fSZhao Junwang if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) 26071d97e915SVille Syrjälä return -ERANGE; 26081d97e915SVille Syrjälä 260984849903SDaniel Vetter drm_modeset_lock_all(dev); 2610a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_req->crtc_id); 2611a2b34e22SRob Clark if (!crtc) { 261258367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 2613f27657f2SVille Syrjälä ret = -ENOENT; 2614f453ba04SDave Airlie goto out; 2615f453ba04SDave Airlie } 26169440106bSJerome Glisse DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 2617f453ba04SDave Airlie 2618f453ba04SDave Airlie if (crtc_req->mode_valid) { 2619f453ba04SDave Airlie /* If we have a mode we need a framebuffer. */ 2620f453ba04SDave Airlie /* If we pass -1, set the mode with the currently bound fb */ 2621f453ba04SDave Airlie if (crtc_req->fb_id == -1) { 2622f4510a27SMatt Roper if (!crtc->primary->fb) { 26236653cc8dSVille Syrjälä DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 26246653cc8dSVille Syrjälä ret = -EINVAL; 26256653cc8dSVille Syrjälä goto out; 26266653cc8dSVille Syrjälä } 2627f4510a27SMatt Roper fb = crtc->primary->fb; 2628b0d12325SDaniel Vetter /* Make refcounting symmetric with the lookup path. */ 2629b0d12325SDaniel Vetter drm_framebuffer_reference(fb); 2630f453ba04SDave Airlie } else { 2631786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); 2632786b99edSDaniel Vetter if (!fb) { 263358367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown FB ID%d\n", 263458367ed6SZhao Yakui crtc_req->fb_id); 263537c4e705SVille Syrjälä ret = -ENOENT; 2636f453ba04SDave Airlie goto out; 2637f453ba04SDave Airlie } 2638f453ba04SDave Airlie } 2639f453ba04SDave Airlie 2640f453ba04SDave Airlie mode = drm_mode_create(dev); 2641ee34ab5bSVille Syrjälä if (!mode) { 2642ee34ab5bSVille Syrjälä ret = -ENOMEM; 2643ee34ab5bSVille Syrjälä goto out; 2644ee34ab5bSVille Syrjälä } 2645ee34ab5bSVille Syrjälä 2646934a8a89SDaniel Stone ret = drm_mode_convert_umode(mode, &crtc_req->mode); 264790367bf6SVille Syrjälä if (ret) { 264890367bf6SVille Syrjälä DRM_DEBUG_KMS("Invalid mode\n"); 264990367bf6SVille Syrjälä goto out; 265090367bf6SVille Syrjälä } 265190367bf6SVille Syrjälä 2652f453ba04SDave Airlie drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 26535f61bb42SVille Syrjälä 26547eb5f302SLaurent Pinchart /* 26557eb5f302SLaurent Pinchart * Check whether the primary plane supports the fb pixel format. 26567eb5f302SLaurent Pinchart * Drivers not implementing the universal planes API use a 26577eb5f302SLaurent Pinchart * default formats list provided by the DRM core which doesn't 26587eb5f302SLaurent Pinchart * match real hardware capabilities. Skip the check in that 26597eb5f302SLaurent Pinchart * case. 26607eb5f302SLaurent Pinchart */ 26617eb5f302SLaurent Pinchart if (!crtc->primary->format_default) { 26627eb5f302SLaurent Pinchart ret = drm_plane_check_pixel_format(crtc->primary, 26637eb5f302SLaurent Pinchart fb->pixel_format); 26647eb5f302SLaurent Pinchart if (ret) { 26657eb5f302SLaurent Pinchart DRM_DEBUG_KMS("Invalid pixel format %s\n", 26667eb5f302SLaurent Pinchart drm_get_format_name(fb->pixel_format)); 26677eb5f302SLaurent Pinchart goto out; 26687eb5f302SLaurent Pinchart } 26697eb5f302SLaurent Pinchart } 26707eb5f302SLaurent Pinchart 2671c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, 2672c11e9283SDamien Lespiau mode, fb); 2673c11e9283SDamien Lespiau if (ret) 26745f61bb42SVille Syrjälä goto out; 2675c11e9283SDamien Lespiau 2676f453ba04SDave Airlie } 2677f453ba04SDave Airlie 2678f453ba04SDave Airlie if (crtc_req->count_connectors == 0 && mode) { 267958367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 2680f453ba04SDave Airlie ret = -EINVAL; 2681f453ba04SDave Airlie goto out; 2682f453ba04SDave Airlie } 2683f453ba04SDave Airlie 26847781de74SJakob Bornecrantz if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 268558367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 2686f453ba04SDave Airlie crtc_req->count_connectors); 2687f453ba04SDave Airlie ret = -EINVAL; 2688f453ba04SDave Airlie goto out; 2689f453ba04SDave Airlie } 2690f453ba04SDave Airlie 2691f453ba04SDave Airlie if (crtc_req->count_connectors > 0) { 2692f453ba04SDave Airlie u32 out_id; 2693f453ba04SDave Airlie 2694f453ba04SDave Airlie /* Avoid unbounded kernel memory allocation */ 2695f453ba04SDave Airlie if (crtc_req->count_connectors > config->num_connector) { 2696f453ba04SDave Airlie ret = -EINVAL; 2697f453ba04SDave Airlie goto out; 2698f453ba04SDave Airlie } 2699f453ba04SDave Airlie 27002f6c5389SThierry Reding connector_set = kmalloc_array(crtc_req->count_connectors, 2701f453ba04SDave Airlie sizeof(struct drm_connector *), 2702f453ba04SDave Airlie GFP_KERNEL); 2703f453ba04SDave Airlie if (!connector_set) { 2704f453ba04SDave Airlie ret = -ENOMEM; 2705f453ba04SDave Airlie goto out; 2706f453ba04SDave Airlie } 2707f453ba04SDave Airlie 2708f453ba04SDave Airlie for (i = 0; i < crtc_req->count_connectors; i++) { 270981f6c7f8SVille Syrjälä set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 2710f453ba04SDave Airlie if (get_user(out_id, &set_connectors_ptr[i])) { 2711f453ba04SDave Airlie ret = -EFAULT; 2712f453ba04SDave Airlie goto out; 2713f453ba04SDave Airlie } 2714f453ba04SDave Airlie 2715a2b34e22SRob Clark connector = drm_connector_find(dev, out_id); 2716a2b34e22SRob Clark if (!connector) { 271758367ed6SZhao Yakui DRM_DEBUG_KMS("Connector id %d unknown\n", 271858367ed6SZhao Yakui out_id); 2719f27657f2SVille Syrjälä ret = -ENOENT; 2720f453ba04SDave Airlie goto out; 2721f453ba04SDave Airlie } 27229440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 27239440106bSJerome Glisse connector->base.id, 272425933820SJani Nikula connector->name); 2725f453ba04SDave Airlie 2726f453ba04SDave Airlie connector_set[i] = connector; 2727f453ba04SDave Airlie } 2728f453ba04SDave Airlie } 2729f453ba04SDave Airlie 2730f453ba04SDave Airlie set.crtc = crtc; 2731f453ba04SDave Airlie set.x = crtc_req->x; 2732f453ba04SDave Airlie set.y = crtc_req->y; 2733f453ba04SDave Airlie set.mode = mode; 2734f453ba04SDave Airlie set.connectors = connector_set; 2735f453ba04SDave Airlie set.num_connectors = crtc_req->count_connectors; 2736f453ba04SDave Airlie set.fb = fb; 27372d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 2738f453ba04SDave Airlie 2739f453ba04SDave Airlie out: 2740b0d12325SDaniel Vetter if (fb) 2741b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 2742b0d12325SDaniel Vetter 2743f453ba04SDave Airlie kfree(connector_set); 2744ee34ab5bSVille Syrjälä drm_mode_destroy(dev, mode); 274584849903SDaniel Vetter drm_modeset_unlock_all(dev); 2746f453ba04SDave Airlie return ret; 2747f453ba04SDave Airlie } 2748f453ba04SDave Airlie 2749161d0dc1SMatt Roper /** 2750161d0dc1SMatt Roper * drm_mode_cursor_universal - translate legacy cursor ioctl call into a 2751161d0dc1SMatt Roper * universal plane handler call 2752161d0dc1SMatt Roper * @crtc: crtc to update cursor for 2753161d0dc1SMatt Roper * @req: data pointer for the ioctl 2754161d0dc1SMatt Roper * @file_priv: drm file for the ioctl call 2755161d0dc1SMatt Roper * 2756161d0dc1SMatt Roper * Legacy cursor ioctl's work directly with driver buffer handles. To 2757161d0dc1SMatt Roper * translate legacy ioctl calls into universal plane handler calls, we need to 2758161d0dc1SMatt Roper * wrap the native buffer handle in a drm_framebuffer. 2759161d0dc1SMatt Roper * 2760161d0dc1SMatt Roper * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB 2761161d0dc1SMatt Roper * buffer with a pitch of 4*width; the universal plane interface should be used 2762161d0dc1SMatt Roper * directly in cases where the hardware can support other buffer settings and 2763161d0dc1SMatt Roper * userspace wants to make use of these capabilities. 2764161d0dc1SMatt Roper * 2765161d0dc1SMatt Roper * Returns: 27661a498633SDaniel Vetter * Zero on success, negative errno on failure. 2767161d0dc1SMatt Roper */ 2768161d0dc1SMatt Roper static int drm_mode_cursor_universal(struct drm_crtc *crtc, 2769161d0dc1SMatt Roper struct drm_mode_cursor2 *req, 2770161d0dc1SMatt Roper struct drm_file *file_priv) 2771161d0dc1SMatt Roper { 2772161d0dc1SMatt Roper struct drm_device *dev = crtc->dev; 2773161d0dc1SMatt Roper struct drm_framebuffer *fb = NULL; 2774161d0dc1SMatt Roper struct drm_mode_fb_cmd2 fbreq = { 2775161d0dc1SMatt Roper .width = req->width, 2776161d0dc1SMatt Roper .height = req->height, 2777161d0dc1SMatt Roper .pixel_format = DRM_FORMAT_ARGB8888, 2778161d0dc1SMatt Roper .pitches = { req->width * 4 }, 2779161d0dc1SMatt Roper .handles = { req->handle }, 2780161d0dc1SMatt Roper }; 2781161d0dc1SMatt Roper int32_t crtc_x, crtc_y; 2782161d0dc1SMatt Roper uint32_t crtc_w = 0, crtc_h = 0; 2783161d0dc1SMatt Roper uint32_t src_w = 0, src_h = 0; 2784161d0dc1SMatt Roper int ret = 0; 2785161d0dc1SMatt Roper 2786161d0dc1SMatt Roper BUG_ON(!crtc->cursor); 2787f2b50c11SDaniel Vetter WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); 2788161d0dc1SMatt Roper 2789161d0dc1SMatt Roper /* 2790161d0dc1SMatt Roper * Obtain fb we'll be using (either new or existing) and take an extra 2791161d0dc1SMatt Roper * reference to it if fb != null. setplane will take care of dropping 2792161d0dc1SMatt Roper * the reference if the plane update fails. 2793161d0dc1SMatt Roper */ 2794161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_BO) { 2795161d0dc1SMatt Roper if (req->handle) { 27969a6f5130SChris Wilson fb = internal_framebuffer_create(dev, &fbreq, file_priv); 2797161d0dc1SMatt Roper if (IS_ERR(fb)) { 2798161d0dc1SMatt Roper DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); 2799161d0dc1SMatt Roper return PTR_ERR(fb); 2800161d0dc1SMatt Roper } 2801161d0dc1SMatt Roper } else { 2802161d0dc1SMatt Roper fb = NULL; 2803161d0dc1SMatt Roper } 2804161d0dc1SMatt Roper } else { 2805161d0dc1SMatt Roper fb = crtc->cursor->fb; 2806161d0dc1SMatt Roper if (fb) 2807161d0dc1SMatt Roper drm_framebuffer_reference(fb); 2808161d0dc1SMatt Roper } 2809161d0dc1SMatt Roper 2810161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_MOVE) { 2811161d0dc1SMatt Roper crtc_x = req->x; 2812161d0dc1SMatt Roper crtc_y = req->y; 2813161d0dc1SMatt Roper } else { 2814161d0dc1SMatt Roper crtc_x = crtc->cursor_x; 2815161d0dc1SMatt Roper crtc_y = crtc->cursor_y; 2816161d0dc1SMatt Roper } 2817161d0dc1SMatt Roper 2818161d0dc1SMatt Roper if (fb) { 2819161d0dc1SMatt Roper crtc_w = fb->width; 2820161d0dc1SMatt Roper crtc_h = fb->height; 2821161d0dc1SMatt Roper src_w = fb->width << 16; 2822161d0dc1SMatt Roper src_h = fb->height << 16; 2823161d0dc1SMatt Roper } 2824161d0dc1SMatt Roper 2825161d0dc1SMatt Roper /* 2826161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 2827161d0dc1SMatt Roper * framebuffer depending on success. 2828161d0dc1SMatt Roper */ 2829f2b50c11SDaniel Vetter ret = __setplane_internal(crtc->cursor, crtc, fb, 2830161d0dc1SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 2831161d0dc1SMatt Roper 0, 0, src_w, src_h); 2832161d0dc1SMatt Roper 2833161d0dc1SMatt Roper /* Update successful; save new cursor position, if necessary */ 2834161d0dc1SMatt Roper if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { 2835161d0dc1SMatt Roper crtc->cursor_x = req->x; 2836161d0dc1SMatt Roper crtc->cursor_y = req->y; 2837161d0dc1SMatt Roper } 2838161d0dc1SMatt Roper 2839161d0dc1SMatt Roper return ret; 2840161d0dc1SMatt Roper } 2841161d0dc1SMatt Roper 28424c813d4dSDave Airlie static int drm_mode_cursor_common(struct drm_device *dev, 28434c813d4dSDave Airlie struct drm_mode_cursor2 *req, 28444c813d4dSDave Airlie struct drm_file *file_priv) 2845f453ba04SDave Airlie { 2846f453ba04SDave Airlie struct drm_crtc *crtc; 2847f453ba04SDave Airlie int ret = 0; 2848f453ba04SDave Airlie 2849fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2850fb3b06c8SDave Airlie return -EINVAL; 2851fb3b06c8SDave Airlie 28527c4eaca4SJakob Bornecrantz if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) 2853f453ba04SDave Airlie return -EINVAL; 2854f453ba04SDave Airlie 2855a2b34e22SRob Clark crtc = drm_crtc_find(dev, req->crtc_id); 2856a2b34e22SRob Clark if (!crtc) { 285758367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); 2858f27657f2SVille Syrjälä return -ENOENT; 2859f453ba04SDave Airlie } 2860f453ba04SDave Airlie 2861161d0dc1SMatt Roper /* 2862161d0dc1SMatt Roper * If this crtc has a universal cursor plane, call that plane's update 2863161d0dc1SMatt Roper * handler rather than using legacy cursor handlers. 2864161d0dc1SMatt Roper */ 28654d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->cursor); 2866f2b50c11SDaniel Vetter if (crtc->cursor) { 2867f2b50c11SDaniel Vetter ret = drm_mode_cursor_universal(crtc, req, file_priv); 2868f2b50c11SDaniel Vetter goto out; 2869f2b50c11SDaniel Vetter } 2870f2b50c11SDaniel Vetter 2871f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_BO) { 28724c813d4dSDave Airlie if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { 2873f453ba04SDave Airlie ret = -ENXIO; 2874f453ba04SDave Airlie goto out; 2875f453ba04SDave Airlie } 2876f453ba04SDave Airlie /* Turns off the cursor if handle is 0 */ 28774c813d4dSDave Airlie if (crtc->funcs->cursor_set2) 28784c813d4dSDave Airlie ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, 28794c813d4dSDave Airlie req->width, req->height, req->hot_x, req->hot_y); 28804c813d4dSDave Airlie else 2881f453ba04SDave Airlie ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, 2882f453ba04SDave Airlie req->width, req->height); 2883f453ba04SDave Airlie } 2884f453ba04SDave Airlie 2885f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_MOVE) { 2886f453ba04SDave Airlie if (crtc->funcs->cursor_move) { 2887f453ba04SDave Airlie ret = crtc->funcs->cursor_move(crtc, req->x, req->y); 2888f453ba04SDave Airlie } else { 2889f453ba04SDave Airlie ret = -EFAULT; 2890f453ba04SDave Airlie goto out; 2891f453ba04SDave Airlie } 2892f453ba04SDave Airlie } 2893f453ba04SDave Airlie out: 2894d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 2895dac35663SDaniel Vetter 2896f453ba04SDave Airlie return ret; 28974c813d4dSDave Airlie 28984c813d4dSDave Airlie } 2899c8e32cc1SDaniel Vetter 2900c8e32cc1SDaniel Vetter 2901c8e32cc1SDaniel Vetter /** 2902c8e32cc1SDaniel Vetter * drm_mode_cursor_ioctl - set CRTC's cursor configuration 2903c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2904c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2905c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2906c8e32cc1SDaniel Vetter * 2907c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. 2908c8e32cc1SDaniel Vetter * 2909c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2910c8e32cc1SDaniel Vetter * 2911c8e32cc1SDaniel Vetter * Returns: 29121a498633SDaniel Vetter * Zero on success, negative errno on failure. 2913c8e32cc1SDaniel Vetter */ 29144c813d4dSDave Airlie int drm_mode_cursor_ioctl(struct drm_device *dev, 29154c813d4dSDave Airlie void *data, struct drm_file *file_priv) 29164c813d4dSDave Airlie { 29174c813d4dSDave Airlie struct drm_mode_cursor *req = data; 29184c813d4dSDave Airlie struct drm_mode_cursor2 new_req; 29194c813d4dSDave Airlie 29204c813d4dSDave Airlie memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); 29214c813d4dSDave Airlie new_req.hot_x = new_req.hot_y = 0; 29224c813d4dSDave Airlie 29234c813d4dSDave Airlie return drm_mode_cursor_common(dev, &new_req, file_priv); 29244c813d4dSDave Airlie } 29254c813d4dSDave Airlie 2926c8e32cc1SDaniel Vetter /** 2927c8e32cc1SDaniel Vetter * drm_mode_cursor2_ioctl - set CRTC's cursor configuration 2928c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2929c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2930c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2931c8e32cc1SDaniel Vetter * 2932c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. This implements the 2nd 2933c8e32cc1SDaniel Vetter * version of the cursor ioctl, which allows userspace to additionally specify 2934c8e32cc1SDaniel Vetter * the hotspot of the pointer. 2935c8e32cc1SDaniel Vetter * 2936c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2937c8e32cc1SDaniel Vetter * 2938c8e32cc1SDaniel Vetter * Returns: 29391a498633SDaniel Vetter * Zero on success, negative errno on failure. 2940c8e32cc1SDaniel Vetter */ 29414c813d4dSDave Airlie int drm_mode_cursor2_ioctl(struct drm_device *dev, 29424c813d4dSDave Airlie void *data, struct drm_file *file_priv) 29434c813d4dSDave Airlie { 29444c813d4dSDave Airlie struct drm_mode_cursor2 *req = data; 29454dfd909fSThierry Reding 29464c813d4dSDave Airlie return drm_mode_cursor_common(dev, req, file_priv); 2947f453ba04SDave Airlie } 2948f453ba04SDave Airlie 2949c8e32cc1SDaniel Vetter /** 2950c8e32cc1SDaniel Vetter * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description 2951c8e32cc1SDaniel Vetter * @bpp: bits per pixels 2952c8e32cc1SDaniel Vetter * @depth: bit depth per pixel 2953c8e32cc1SDaniel Vetter * 2954c8e32cc1SDaniel Vetter * Computes a drm fourcc pixel format code for the given @bpp/@depth values. 2955c8e32cc1SDaniel Vetter * Useful in fbdev emulation code, since that deals in those values. 2956c8e32cc1SDaniel Vetter */ 2957308e5bcbSJesse Barnes uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) 2958308e5bcbSJesse Barnes { 2959308e5bcbSJesse Barnes uint32_t fmt; 2960308e5bcbSJesse Barnes 2961308e5bcbSJesse Barnes switch (bpp) { 2962308e5bcbSJesse Barnes case 8: 2963d84f031bSVille Syrjälä fmt = DRM_FORMAT_C8; 2964308e5bcbSJesse Barnes break; 2965308e5bcbSJesse Barnes case 16: 2966308e5bcbSJesse Barnes if (depth == 15) 296704b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB1555; 2968308e5bcbSJesse Barnes else 296904b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB565; 2970308e5bcbSJesse Barnes break; 2971308e5bcbSJesse Barnes case 24: 297204b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB888; 2973308e5bcbSJesse Barnes break; 2974308e5bcbSJesse Barnes case 32: 2975308e5bcbSJesse Barnes if (depth == 24) 297604b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 2977308e5bcbSJesse Barnes else if (depth == 30) 297804b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB2101010; 2979308e5bcbSJesse Barnes else 298004b3924dSVille Syrjälä fmt = DRM_FORMAT_ARGB8888; 2981308e5bcbSJesse Barnes break; 2982308e5bcbSJesse Barnes default: 298304b3924dSVille Syrjälä DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); 298404b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 2985308e5bcbSJesse Barnes break; 2986308e5bcbSJesse Barnes } 2987308e5bcbSJesse Barnes 2988308e5bcbSJesse Barnes return fmt; 2989308e5bcbSJesse Barnes } 2990308e5bcbSJesse Barnes EXPORT_SYMBOL(drm_mode_legacy_fb_format); 2991308e5bcbSJesse Barnes 2992f453ba04SDave Airlie /** 2993f453ba04SDave Airlie * drm_mode_addfb - add an FB to the graphics configuration 2994065a50edSDaniel Vetter * @dev: drm device for the ioctl 2995065a50edSDaniel Vetter * @data: data pointer for the ioctl 2996065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2997f453ba04SDave Airlie * 2998c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request. This is the 2999209f5527SChuck Ebbert * original addfb ioctl which only supported RGB formats. 3000f453ba04SDave Airlie * 3001f453ba04SDave Airlie * Called by the user via ioctl. 3002f453ba04SDave Airlie * 3003c8e32cc1SDaniel Vetter * Returns: 30041a498633SDaniel Vetter * Zero on success, negative errno on failure. 3005f453ba04SDave Airlie */ 3006f453ba04SDave Airlie int drm_mode_addfb(struct drm_device *dev, 3007f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3008f453ba04SDave Airlie { 3009308e5bcbSJesse Barnes struct drm_mode_fb_cmd *or = data; 3010308e5bcbSJesse Barnes struct drm_mode_fb_cmd2 r = {}; 3011228f2cb3SChuck Ebbert int ret; 3012308e5bcbSJesse Barnes 3013228f2cb3SChuck Ebbert /* convert to new format and call new ioctl */ 3014308e5bcbSJesse Barnes r.fb_id = or->fb_id; 3015308e5bcbSJesse Barnes r.width = or->width; 3016308e5bcbSJesse Barnes r.height = or->height; 3017308e5bcbSJesse Barnes r.pitches[0] = or->pitch; 3018308e5bcbSJesse Barnes r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); 3019308e5bcbSJesse Barnes r.handles[0] = or->handle; 3020308e5bcbSJesse Barnes 3021228f2cb3SChuck Ebbert ret = drm_mode_addfb2(dev, &r, file_priv); 3022228f2cb3SChuck Ebbert if (ret) 3023228f2cb3SChuck Ebbert return ret; 3024308e5bcbSJesse Barnes 3025228f2cb3SChuck Ebbert or->fb_id = r.fb_id; 30264b096ac1SDaniel Vetter 3027baf698b0SDaniel Vetter return 0; 3028308e5bcbSJesse Barnes } 3029308e5bcbSJesse Barnes 3030cff91b62SVille Syrjälä static int format_check(const struct drm_mode_fb_cmd2 *r) 3031935b5977SVille Syrjälä { 3032935b5977SVille Syrjälä uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; 3033935b5977SVille Syrjälä 3034935b5977SVille Syrjälä switch (format) { 3035935b5977SVille Syrjälä case DRM_FORMAT_C8: 3036935b5977SVille Syrjälä case DRM_FORMAT_RGB332: 3037935b5977SVille Syrjälä case DRM_FORMAT_BGR233: 3038935b5977SVille Syrjälä case DRM_FORMAT_XRGB4444: 3039935b5977SVille Syrjälä case DRM_FORMAT_XBGR4444: 3040935b5977SVille Syrjälä case DRM_FORMAT_RGBX4444: 3041935b5977SVille Syrjälä case DRM_FORMAT_BGRX4444: 3042935b5977SVille Syrjälä case DRM_FORMAT_ARGB4444: 3043935b5977SVille Syrjälä case DRM_FORMAT_ABGR4444: 3044935b5977SVille Syrjälä case DRM_FORMAT_RGBA4444: 3045935b5977SVille Syrjälä case DRM_FORMAT_BGRA4444: 3046935b5977SVille Syrjälä case DRM_FORMAT_XRGB1555: 3047935b5977SVille Syrjälä case DRM_FORMAT_XBGR1555: 3048935b5977SVille Syrjälä case DRM_FORMAT_RGBX5551: 3049935b5977SVille Syrjälä case DRM_FORMAT_BGRX5551: 3050935b5977SVille Syrjälä case DRM_FORMAT_ARGB1555: 3051935b5977SVille Syrjälä case DRM_FORMAT_ABGR1555: 3052935b5977SVille Syrjälä case DRM_FORMAT_RGBA5551: 3053935b5977SVille Syrjälä case DRM_FORMAT_BGRA5551: 3054935b5977SVille Syrjälä case DRM_FORMAT_RGB565: 3055935b5977SVille Syrjälä case DRM_FORMAT_BGR565: 3056935b5977SVille Syrjälä case DRM_FORMAT_RGB888: 3057935b5977SVille Syrjälä case DRM_FORMAT_BGR888: 3058935b5977SVille Syrjälä case DRM_FORMAT_XRGB8888: 3059935b5977SVille Syrjälä case DRM_FORMAT_XBGR8888: 3060935b5977SVille Syrjälä case DRM_FORMAT_RGBX8888: 3061935b5977SVille Syrjälä case DRM_FORMAT_BGRX8888: 3062935b5977SVille Syrjälä case DRM_FORMAT_ARGB8888: 3063935b5977SVille Syrjälä case DRM_FORMAT_ABGR8888: 3064935b5977SVille Syrjälä case DRM_FORMAT_RGBA8888: 3065935b5977SVille Syrjälä case DRM_FORMAT_BGRA8888: 3066935b5977SVille Syrjälä case DRM_FORMAT_XRGB2101010: 3067935b5977SVille Syrjälä case DRM_FORMAT_XBGR2101010: 3068935b5977SVille Syrjälä case DRM_FORMAT_RGBX1010102: 3069935b5977SVille Syrjälä case DRM_FORMAT_BGRX1010102: 3070935b5977SVille Syrjälä case DRM_FORMAT_ARGB2101010: 3071935b5977SVille Syrjälä case DRM_FORMAT_ABGR2101010: 3072935b5977SVille Syrjälä case DRM_FORMAT_RGBA1010102: 3073935b5977SVille Syrjälä case DRM_FORMAT_BGRA1010102: 3074935b5977SVille Syrjälä case DRM_FORMAT_YUYV: 3075935b5977SVille Syrjälä case DRM_FORMAT_YVYU: 3076935b5977SVille Syrjälä case DRM_FORMAT_UYVY: 3077935b5977SVille Syrjälä case DRM_FORMAT_VYUY: 3078935b5977SVille Syrjälä case DRM_FORMAT_AYUV: 3079935b5977SVille Syrjälä case DRM_FORMAT_NV12: 3080935b5977SVille Syrjälä case DRM_FORMAT_NV21: 3081935b5977SVille Syrjälä case DRM_FORMAT_NV16: 3082935b5977SVille Syrjälä case DRM_FORMAT_NV61: 3083ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 3084ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 3085935b5977SVille Syrjälä case DRM_FORMAT_YUV410: 3086935b5977SVille Syrjälä case DRM_FORMAT_YVU410: 3087935b5977SVille Syrjälä case DRM_FORMAT_YUV411: 3088935b5977SVille Syrjälä case DRM_FORMAT_YVU411: 3089935b5977SVille Syrjälä case DRM_FORMAT_YUV420: 3090935b5977SVille Syrjälä case DRM_FORMAT_YVU420: 3091935b5977SVille Syrjälä case DRM_FORMAT_YUV422: 3092935b5977SVille Syrjälä case DRM_FORMAT_YVU422: 3093935b5977SVille Syrjälä case DRM_FORMAT_YUV444: 3094935b5977SVille Syrjälä case DRM_FORMAT_YVU444: 3095935b5977SVille Syrjälä return 0; 3096935b5977SVille Syrjälä default: 309723c453a4SVille Syrjälä DRM_DEBUG_KMS("invalid pixel format %s\n", 309823c453a4SVille Syrjälä drm_get_format_name(r->pixel_format)); 3099935b5977SVille Syrjälä return -EINVAL; 3100935b5977SVille Syrjälä } 3101935b5977SVille Syrjälä } 3102935b5977SVille Syrjälä 3103cff91b62SVille Syrjälä static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) 3104d1b45d5fSVille Syrjälä { 3105d1b45d5fSVille Syrjälä int ret, hsub, vsub, num_planes, i; 3106d1b45d5fSVille Syrjälä 3107d1b45d5fSVille Syrjälä ret = format_check(r); 3108d1b45d5fSVille Syrjälä if (ret) { 31096ba6d03eSVille Syrjälä DRM_DEBUG_KMS("bad framebuffer format %s\n", 31106ba6d03eSVille Syrjälä drm_get_format_name(r->pixel_format)); 3111d1b45d5fSVille Syrjälä return ret; 3112d1b45d5fSVille Syrjälä } 3113d1b45d5fSVille Syrjälä 3114d1b45d5fSVille Syrjälä hsub = drm_format_horz_chroma_subsampling(r->pixel_format); 3115d1b45d5fSVille Syrjälä vsub = drm_format_vert_chroma_subsampling(r->pixel_format); 3116d1b45d5fSVille Syrjälä num_planes = drm_format_num_planes(r->pixel_format); 3117d1b45d5fSVille Syrjälä 3118d1b45d5fSVille Syrjälä if (r->width == 0 || r->width % hsub) { 3119209f5527SChuck Ebbert DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); 3120d1b45d5fSVille Syrjälä return -EINVAL; 3121d1b45d5fSVille Syrjälä } 3122d1b45d5fSVille Syrjälä 3123d1b45d5fSVille Syrjälä if (r->height == 0 || r->height % vsub) { 31241aa1b11cSDave Airlie DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); 3125d1b45d5fSVille Syrjälä return -EINVAL; 3126d1b45d5fSVille Syrjälä } 3127d1b45d5fSVille Syrjälä 3128d1b45d5fSVille Syrjälä for (i = 0; i < num_planes; i++) { 3129d1b45d5fSVille Syrjälä unsigned int width = r->width / (i != 0 ? hsub : 1); 3130b180b5d1SVille Syrjälä unsigned int height = r->height / (i != 0 ? vsub : 1); 3131b180b5d1SVille Syrjälä unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); 3132d1b45d5fSVille Syrjälä 3133d1b45d5fSVille Syrjälä if (!r->handles[i]) { 31341aa1b11cSDave Airlie DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); 3135d1b45d5fSVille Syrjälä return -EINVAL; 3136d1b45d5fSVille Syrjälä } 3137d1b45d5fSVille Syrjälä 3138b180b5d1SVille Syrjälä if ((uint64_t) width * cpp > UINT_MAX) 3139b180b5d1SVille Syrjälä return -ERANGE; 3140b180b5d1SVille Syrjälä 3141b180b5d1SVille Syrjälä if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) 3142b180b5d1SVille Syrjälä return -ERANGE; 3143b180b5d1SVille Syrjälä 3144b180b5d1SVille Syrjälä if (r->pitches[i] < width * cpp) { 31451aa1b11cSDave Airlie DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); 3146d1b45d5fSVille Syrjälä return -EINVAL; 3147d1b45d5fSVille Syrjälä } 3148e3eb3250SRob Clark 3149e3eb3250SRob Clark if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { 3150e3eb3250SRob Clark DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", 3151e3eb3250SRob Clark r->modifier[i], i); 3152e3eb3250SRob Clark return -EINVAL; 3153e3eb3250SRob Clark } 3154570655b0SRob Clark 3155570655b0SRob Clark /* modifier specific checks: */ 3156570655b0SRob Clark switch (r->modifier[i]) { 3157570655b0SRob Clark case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: 3158570655b0SRob Clark /* NOTE: the pitch restriction may be lifted later if it turns 3159570655b0SRob Clark * out that no hw has this restriction: 3160570655b0SRob Clark */ 3161570655b0SRob Clark if (r->pixel_format != DRM_FORMAT_NV12 || 3162570655b0SRob Clark width % 128 || height % 32 || 3163570655b0SRob Clark r->pitches[i] % 128) { 3164570655b0SRob Clark DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); 3165570655b0SRob Clark return -EINVAL; 3166570655b0SRob Clark } 3167570655b0SRob Clark break; 3168570655b0SRob Clark 3169570655b0SRob Clark default: 3170570655b0SRob Clark break; 3171570655b0SRob Clark } 3172d1b45d5fSVille Syrjälä } 3173d1b45d5fSVille Syrjälä 3174bbe16a40SDaniel Vetter for (i = num_planes; i < 4; i++) { 3175bbe16a40SDaniel Vetter if (r->modifier[i]) { 3176bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); 3177bbe16a40SDaniel Vetter return -EINVAL; 3178bbe16a40SDaniel Vetter } 3179bbe16a40SDaniel Vetter 3180bbe16a40SDaniel Vetter /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ 3181bbe16a40SDaniel Vetter if (!(r->flags & DRM_MODE_FB_MODIFIERS)) 3182bbe16a40SDaniel Vetter continue; 3183bbe16a40SDaniel Vetter 3184bbe16a40SDaniel Vetter if (r->handles[i]) { 3185bbe16a40SDaniel Vetter DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); 3186bbe16a40SDaniel Vetter return -EINVAL; 3187bbe16a40SDaniel Vetter } 3188bbe16a40SDaniel Vetter 3189bbe16a40SDaniel Vetter if (r->pitches[i]) { 3190bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); 3191bbe16a40SDaniel Vetter return -EINVAL; 3192bbe16a40SDaniel Vetter } 3193bbe16a40SDaniel Vetter 3194bbe16a40SDaniel Vetter if (r->offsets[i]) { 3195bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); 3196bbe16a40SDaniel Vetter return -EINVAL; 3197bbe16a40SDaniel Vetter } 3198bbe16a40SDaniel Vetter } 3199bbe16a40SDaniel Vetter 3200d1b45d5fSVille Syrjälä return 0; 3201d1b45d5fSVille Syrjälä } 3202d1b45d5fSVille Syrjälä 32039a6f5130SChris Wilson static struct drm_framebuffer * 32049a6f5130SChris Wilson internal_framebuffer_create(struct drm_device *dev, 3205c394c2b0SMatt Roper struct drm_mode_fb_cmd2 *r, 3206c394c2b0SMatt Roper struct drm_file *file_priv) 3207c394c2b0SMatt Roper { 3208c394c2b0SMatt Roper struct drm_mode_config *config = &dev->mode_config; 3209c394c2b0SMatt Roper struct drm_framebuffer *fb; 3210c394c2b0SMatt Roper int ret; 3211c394c2b0SMatt Roper 3212e3eb3250SRob Clark if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { 3213c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); 3214c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3215c394c2b0SMatt Roper } 3216c394c2b0SMatt Roper 3217c394c2b0SMatt Roper if ((config->min_width > r->width) || (r->width > config->max_width)) { 3218c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", 3219c394c2b0SMatt Roper r->width, config->min_width, config->max_width); 3220c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3221c394c2b0SMatt Roper } 3222c394c2b0SMatt Roper if ((config->min_height > r->height) || (r->height > config->max_height)) { 3223c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", 3224c394c2b0SMatt Roper r->height, config->min_height, config->max_height); 3225c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3226c394c2b0SMatt Roper } 3227c394c2b0SMatt Roper 3228e3eb3250SRob Clark if (r->flags & DRM_MODE_FB_MODIFIERS && 3229e3eb3250SRob Clark !dev->mode_config.allow_fb_modifiers) { 3230e3eb3250SRob Clark DRM_DEBUG_KMS("driver does not support fb modifiers\n"); 3231e3eb3250SRob Clark return ERR_PTR(-EINVAL); 3232e3eb3250SRob Clark } 3233e3eb3250SRob Clark 3234c394c2b0SMatt Roper ret = framebuffer_check(r); 3235c394c2b0SMatt Roper if (ret) 3236c394c2b0SMatt Roper return ERR_PTR(ret); 3237c394c2b0SMatt Roper 3238c394c2b0SMatt Roper fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); 3239c394c2b0SMatt Roper if (IS_ERR(fb)) { 3240c394c2b0SMatt Roper DRM_DEBUG_KMS("could not create framebuffer\n"); 3241c394c2b0SMatt Roper return fb; 3242c394c2b0SMatt Roper } 3243c394c2b0SMatt Roper 3244c394c2b0SMatt Roper return fb; 3245c394c2b0SMatt Roper } 3246c394c2b0SMatt Roper 3247308e5bcbSJesse Barnes /** 3248308e5bcbSJesse Barnes * drm_mode_addfb2 - add an FB to the graphics configuration 3249065a50edSDaniel Vetter * @dev: drm device for the ioctl 3250065a50edSDaniel Vetter * @data: data pointer for the ioctl 3251065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3252308e5bcbSJesse Barnes * 3253c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request with format. This is 3254c8e32cc1SDaniel Vetter * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers 3255c8e32cc1SDaniel Vetter * and uses fourcc codes as pixel format specifiers. 3256308e5bcbSJesse Barnes * 3257308e5bcbSJesse Barnes * Called by the user via ioctl. 3258308e5bcbSJesse Barnes * 3259c8e32cc1SDaniel Vetter * Returns: 32601a498633SDaniel Vetter * Zero on success, negative errno on failure. 3261308e5bcbSJesse Barnes */ 3262308e5bcbSJesse Barnes int drm_mode_addfb2(struct drm_device *dev, 3263308e5bcbSJesse Barnes void *data, struct drm_file *file_priv) 3264308e5bcbSJesse Barnes { 32659a6f5130SChris Wilson struct drm_mode_fb_cmd2 *r = data; 3266f453ba04SDave Airlie struct drm_framebuffer *fb; 3267f453ba04SDave Airlie 3268fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3269fb3b06c8SDave Airlie return -EINVAL; 3270fb3b06c8SDave Airlie 32719a6f5130SChris Wilson fb = internal_framebuffer_create(dev, r, file_priv); 3272c394c2b0SMatt Roper if (IS_ERR(fb)) 32734b096ac1SDaniel Vetter return PTR_ERR(fb); 3274f453ba04SDave Airlie 32759a6f5130SChris Wilson /* Transfer ownership to the filp for reaping on close */ 32769a6f5130SChris Wilson 32779a6f5130SChris Wilson DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 32789a6f5130SChris Wilson mutex_lock(&file_priv->fbs_lock); 32799a6f5130SChris Wilson r->fb_id = fb->base.id; 32809a6f5130SChris Wilson list_add(&fb->filp_head, &file_priv->fbs); 32819a6f5130SChris Wilson mutex_unlock(&file_priv->fbs_lock); 32829a6f5130SChris Wilson 3283c394c2b0SMatt Roper return 0; 3284f453ba04SDave Airlie } 3285f453ba04SDave Airlie 3286f453ba04SDave Airlie /** 3287f453ba04SDave Airlie * drm_mode_rmfb - remove an FB from the configuration 3288065a50edSDaniel Vetter * @dev: drm device for the ioctl 3289065a50edSDaniel Vetter * @data: data pointer for the ioctl 3290065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3291f453ba04SDave Airlie * 3292f453ba04SDave Airlie * Remove the FB specified by the user. 3293f453ba04SDave Airlie * 3294f453ba04SDave Airlie * Called by the user via ioctl. 3295f453ba04SDave Airlie * 3296c8e32cc1SDaniel Vetter * Returns: 32971a498633SDaniel Vetter * Zero on success, negative errno on failure. 3298f453ba04SDave Airlie */ 3299f453ba04SDave Airlie int drm_mode_rmfb(struct drm_device *dev, 3300f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3301f453ba04SDave Airlie { 3302f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 3303f453ba04SDave Airlie struct drm_framebuffer *fbl = NULL; 3304f453ba04SDave Airlie uint32_t *id = data; 3305f453ba04SDave Airlie int found = 0; 3306f453ba04SDave Airlie 3307fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3308fb3b06c8SDave Airlie return -EINVAL; 3309fb3b06c8SDave Airlie 33104b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 33112b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 33122b677e8cSDaniel Vetter fb = __drm_framebuffer_lookup(dev, *id); 33132b677e8cSDaniel Vetter if (!fb) 33142b677e8cSDaniel Vetter goto fail_lookup; 33152b677e8cSDaniel Vetter 3316f453ba04SDave Airlie list_for_each_entry(fbl, &file_priv->fbs, filp_head) 3317f453ba04SDave Airlie if (fb == fbl) 3318f453ba04SDave Airlie found = 1; 33192b677e8cSDaniel Vetter if (!found) 33202b677e8cSDaniel Vetter goto fail_lookup; 33212b677e8cSDaniel Vetter 33224b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 33232b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 33244b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 3325f453ba04SDave Airlie 332613803132SMaarten Lankhorst drm_framebuffer_unreference(fb); 33274b096ac1SDaniel Vetter 33282b677e8cSDaniel Vetter return 0; 33292b677e8cSDaniel Vetter 33302b677e8cSDaniel Vetter fail_lookup: 33312b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 33322b677e8cSDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 33332b677e8cSDaniel Vetter 333437c4e705SVille Syrjälä return -ENOENT; 3335f453ba04SDave Airlie } 3336f453ba04SDave Airlie 3337f453ba04SDave Airlie /** 3338f453ba04SDave Airlie * drm_mode_getfb - get FB info 3339065a50edSDaniel Vetter * @dev: drm device for the ioctl 3340065a50edSDaniel Vetter * @data: data pointer for the ioctl 3341065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3342f453ba04SDave Airlie * 3343f453ba04SDave Airlie * Lookup the FB given its ID and return info about it. 3344f453ba04SDave Airlie * 3345f453ba04SDave Airlie * Called by the user via ioctl. 3346f453ba04SDave Airlie * 3347c8e32cc1SDaniel Vetter * Returns: 33481a498633SDaniel Vetter * Zero on success, negative errno on failure. 3349f453ba04SDave Airlie */ 3350f453ba04SDave Airlie int drm_mode_getfb(struct drm_device *dev, 3351f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3352f453ba04SDave Airlie { 3353f453ba04SDave Airlie struct drm_mode_fb_cmd *r = data; 3354f453ba04SDave Airlie struct drm_framebuffer *fb; 335558c0dca1SDaniel Vetter int ret; 3356f453ba04SDave Airlie 3357fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3358fb3b06c8SDave Airlie return -EINVAL; 3359fb3b06c8SDave Airlie 3360786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, r->fb_id); 336158c0dca1SDaniel Vetter if (!fb) 336237c4e705SVille Syrjälä return -ENOENT; 3363f453ba04SDave Airlie 3364f453ba04SDave Airlie r->height = fb->height; 3365f453ba04SDave Airlie r->width = fb->width; 3366f453ba04SDave Airlie r->depth = fb->depth; 3367f453ba04SDave Airlie r->bpp = fb->bits_per_pixel; 336801f2c773SVille Syrjälä r->pitch = fb->pitches[0]; 3369101b96f3SDavid Herrmann if (fb->funcs->create_handle) { 337009f308f7SThomas Hellstrom if (file_priv->is_master || capable(CAP_SYS_ADMIN) || 337143683057SThomas Hellstrom drm_is_control_client(file_priv)) { 3372101b96f3SDavid Herrmann ret = fb->funcs->create_handle(fb, file_priv, 3373101b96f3SDavid Herrmann &r->handle); 3374101b96f3SDavid Herrmann } else { 3375101b96f3SDavid Herrmann /* GET_FB() is an unprivileged ioctl so we must not 3376101b96f3SDavid Herrmann * return a buffer-handle to non-master processes! For 3377101b96f3SDavid Herrmann * backwards-compatibility reasons, we cannot make 3378101b96f3SDavid Herrmann * GET_FB() privileged, so just return an invalid handle 3379101b96f3SDavid Herrmann * for non-masters. */ 3380101b96f3SDavid Herrmann r->handle = 0; 3381101b96f3SDavid Herrmann ret = 0; 3382101b96f3SDavid Herrmann } 3383101b96f3SDavid Herrmann } else { 3384af26ef3bSDaniel Vetter ret = -ENODEV; 3385101b96f3SDavid Herrmann } 3386f453ba04SDave Airlie 338758c0dca1SDaniel Vetter drm_framebuffer_unreference(fb); 338858c0dca1SDaniel Vetter 3389f453ba04SDave Airlie return ret; 3390f453ba04SDave Airlie } 3391f453ba04SDave Airlie 3392c8e32cc1SDaniel Vetter /** 3393c8e32cc1SDaniel Vetter * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB 3394c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3395c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3396c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3397c8e32cc1SDaniel Vetter * 3398c8e32cc1SDaniel Vetter * Lookup the FB and flush out the damaged area supplied by userspace as a clip 3399c8e32cc1SDaniel Vetter * rectangle list. Generic userspace which does frontbuffer rendering must call 3400c8e32cc1SDaniel Vetter * this ioctl to flush out the changes on manual-update display outputs, e.g. 3401c8e32cc1SDaniel Vetter * usb display-link, mipi manual update panels or edp panel self refresh modes. 3402c8e32cc1SDaniel Vetter * 3403c8e32cc1SDaniel Vetter * Modesetting drivers which always update the frontbuffer do not need to 3404c8e32cc1SDaniel Vetter * implement the corresponding ->dirty framebuffer callback. 3405c8e32cc1SDaniel Vetter * 3406c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3407c8e32cc1SDaniel Vetter * 3408c8e32cc1SDaniel Vetter * Returns: 34091a498633SDaniel Vetter * Zero on success, negative errno on failure. 3410c8e32cc1SDaniel Vetter */ 3411884840aaSJakob Bornecrantz int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 3412884840aaSJakob Bornecrantz void *data, struct drm_file *file_priv) 3413884840aaSJakob Bornecrantz { 3414884840aaSJakob Bornecrantz struct drm_clip_rect __user *clips_ptr; 3415884840aaSJakob Bornecrantz struct drm_clip_rect *clips = NULL; 3416884840aaSJakob Bornecrantz struct drm_mode_fb_dirty_cmd *r = data; 3417884840aaSJakob Bornecrantz struct drm_framebuffer *fb; 3418884840aaSJakob Bornecrantz unsigned flags; 3419884840aaSJakob Bornecrantz int num_clips; 34204a1b0714SLaurent Pinchart int ret; 3421884840aaSJakob Bornecrantz 3422fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3423fb3b06c8SDave Airlie return -EINVAL; 3424fb3b06c8SDave Airlie 3425786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, r->fb_id); 34264ccf097fSDaniel Vetter if (!fb) 342737c4e705SVille Syrjälä return -ENOENT; 3428884840aaSJakob Bornecrantz 3429884840aaSJakob Bornecrantz num_clips = r->num_clips; 343081f6c7f8SVille Syrjälä clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; 3431884840aaSJakob Bornecrantz 3432884840aaSJakob Bornecrantz if (!num_clips != !clips_ptr) { 3433884840aaSJakob Bornecrantz ret = -EINVAL; 3434884840aaSJakob Bornecrantz goto out_err1; 3435884840aaSJakob Bornecrantz } 3436884840aaSJakob Bornecrantz 3437884840aaSJakob Bornecrantz flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; 3438884840aaSJakob Bornecrantz 3439884840aaSJakob Bornecrantz /* If userspace annotates copy, clips must come in pairs */ 3440884840aaSJakob Bornecrantz if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { 3441884840aaSJakob Bornecrantz ret = -EINVAL; 3442884840aaSJakob Bornecrantz goto out_err1; 3443884840aaSJakob Bornecrantz } 3444884840aaSJakob Bornecrantz 3445884840aaSJakob Bornecrantz if (num_clips && clips_ptr) { 3446a5cd3351SXi Wang if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { 3447a5cd3351SXi Wang ret = -EINVAL; 3448a5cd3351SXi Wang goto out_err1; 3449a5cd3351SXi Wang } 3450bd3f0ff9SThierry Reding clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); 3451884840aaSJakob Bornecrantz if (!clips) { 3452884840aaSJakob Bornecrantz ret = -ENOMEM; 3453884840aaSJakob Bornecrantz goto out_err1; 3454884840aaSJakob Bornecrantz } 3455884840aaSJakob Bornecrantz 3456884840aaSJakob Bornecrantz ret = copy_from_user(clips, clips_ptr, 3457884840aaSJakob Bornecrantz num_clips * sizeof(*clips)); 3458e902a358SDan Carpenter if (ret) { 3459e902a358SDan Carpenter ret = -EFAULT; 3460884840aaSJakob Bornecrantz goto out_err2; 3461884840aaSJakob Bornecrantz } 3462e902a358SDan Carpenter } 3463884840aaSJakob Bornecrantz 3464884840aaSJakob Bornecrantz if (fb->funcs->dirty) { 346502b00162SThomas Hellstrom ret = fb->funcs->dirty(fb, file_priv, flags, r->color, 346602b00162SThomas Hellstrom clips, num_clips); 3467884840aaSJakob Bornecrantz } else { 3468884840aaSJakob Bornecrantz ret = -ENOSYS; 3469884840aaSJakob Bornecrantz } 3470884840aaSJakob Bornecrantz 3471884840aaSJakob Bornecrantz out_err2: 3472884840aaSJakob Bornecrantz kfree(clips); 3473884840aaSJakob Bornecrantz out_err1: 34744ccf097fSDaniel Vetter drm_framebuffer_unreference(fb); 34754ccf097fSDaniel Vetter 3476884840aaSJakob Bornecrantz return ret; 3477884840aaSJakob Bornecrantz } 3478884840aaSJakob Bornecrantz 3479884840aaSJakob Bornecrantz 3480f453ba04SDave Airlie /** 3481f453ba04SDave Airlie * drm_fb_release - remove and free the FBs on this file 3482065a50edSDaniel Vetter * @priv: drm file for the ioctl 3483f453ba04SDave Airlie * 3484f453ba04SDave Airlie * Destroy all the FBs associated with @filp. 3485f453ba04SDave Airlie * 3486f453ba04SDave Airlie * Called by the user via ioctl. 3487f453ba04SDave Airlie * 3488c8e32cc1SDaniel Vetter * Returns: 34891a498633SDaniel Vetter * Zero on success, negative errno on failure. 3490f453ba04SDave Airlie */ 3491ea39f835SKristian Høgsberg void drm_fb_release(struct drm_file *priv) 3492f453ba04SDave Airlie { 3493f453ba04SDave Airlie struct drm_framebuffer *fb, *tfb; 3494f453ba04SDave Airlie 34951b116297SDaniel Vetter /* 34961b116297SDaniel Vetter * When the file gets released that means no one else can access the fb 3497e2db726bSMartin Peres * list any more, so no need to grab fpriv->fbs_lock. And we need to 34981b116297SDaniel Vetter * avoid upsetting lockdep since the universal cursor code adds a 34991b116297SDaniel Vetter * framebuffer while holding mutex locks. 35001b116297SDaniel Vetter * 35011b116297SDaniel Vetter * Note that a real deadlock between fpriv->fbs_lock and the modeset 35021b116297SDaniel Vetter * locks is impossible here since no one else but this function can get 35031b116297SDaniel Vetter * at it any more. 35041b116297SDaniel Vetter */ 3505f453ba04SDave Airlie list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { 35064b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 35072b677e8cSDaniel Vetter 350873f7570bSMaarten Lankhorst /* This drops the fpriv->fbs reference. */ 350913803132SMaarten Lankhorst drm_framebuffer_unreference(fb); 3510f453ba04SDave Airlie } 3511f453ba04SDave Airlie } 3512f453ba04SDave Airlie 3513c8e32cc1SDaniel Vetter /** 3514c8e32cc1SDaniel Vetter * drm_property_create - create a new property type 3515c8e32cc1SDaniel Vetter * @dev: drm device 3516c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3517c8e32cc1SDaniel Vetter * @name: name of the property 3518c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3519c8e32cc1SDaniel Vetter * 3520c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3521c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3522c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3523c8e32cc1SDaniel Vetter * 35243b5b9932SDamien Lespiau * Note that the DRM core keeps a per-device list of properties and that, if 35253b5b9932SDamien Lespiau * drm_mode_config_cleanup() is called, it will destroy all properties created 35263b5b9932SDamien Lespiau * by the driver. 35273b5b9932SDamien Lespiau * 3528c8e32cc1SDaniel Vetter * Returns: 3529c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3530c8e32cc1SDaniel Vetter */ 3531f453ba04SDave Airlie struct drm_property *drm_property_create(struct drm_device *dev, int flags, 3532f453ba04SDave Airlie const char *name, int num_values) 3533f453ba04SDave Airlie { 3534f453ba04SDave Airlie struct drm_property *property = NULL; 35356bfc56aaSVille Syrjälä int ret; 3536f453ba04SDave Airlie 3537f453ba04SDave Airlie property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); 3538f453ba04SDave Airlie if (!property) 3539f453ba04SDave Airlie return NULL; 3540f453ba04SDave Airlie 354198f75de4SRob Clark property->dev = dev; 354298f75de4SRob Clark 3543f453ba04SDave Airlie if (num_values) { 3544bd3f0ff9SThierry Reding property->values = kcalloc(num_values, sizeof(uint64_t), 3545bd3f0ff9SThierry Reding GFP_KERNEL); 3546f453ba04SDave Airlie if (!property->values) 3547f453ba04SDave Airlie goto fail; 3548f453ba04SDave Airlie } 3549f453ba04SDave Airlie 35506bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); 35516bfc56aaSVille Syrjälä if (ret) 35526bfc56aaSVille Syrjälä goto fail; 35536bfc56aaSVille Syrjälä 3554f453ba04SDave Airlie property->flags = flags; 3555f453ba04SDave Airlie property->num_values = num_values; 35563758b341SDaniel Vetter INIT_LIST_HEAD(&property->enum_list); 3557f453ba04SDave Airlie 3558471dd2efSVinson Lee if (name) { 3559f453ba04SDave Airlie strncpy(property->name, name, DRM_PROP_NAME_LEN); 3560471dd2efSVinson Lee property->name[DRM_PROP_NAME_LEN-1] = '\0'; 3561471dd2efSVinson Lee } 3562f453ba04SDave Airlie 3563f453ba04SDave Airlie list_add_tail(&property->head, &dev->mode_config.property_list); 35645ea22f24SRob Clark 35655ea22f24SRob Clark WARN_ON(!drm_property_type_valid(property)); 35665ea22f24SRob Clark 3567f453ba04SDave Airlie return property; 3568f453ba04SDave Airlie fail: 35696bfc56aaSVille Syrjälä kfree(property->values); 3570f453ba04SDave Airlie kfree(property); 3571f453ba04SDave Airlie return NULL; 3572f453ba04SDave Airlie } 3573f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_create); 3574f453ba04SDave Airlie 3575c8e32cc1SDaniel Vetter /** 35762aa9d2bcSThierry Reding * drm_property_create_enum - create a new enumeration property type 3577c8e32cc1SDaniel Vetter * @dev: drm device 3578c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3579c8e32cc1SDaniel Vetter * @name: name of the property 3580c8e32cc1SDaniel Vetter * @props: enumeration lists with property values 3581c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3582c8e32cc1SDaniel Vetter * 3583c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3584c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3585c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3586c8e32cc1SDaniel Vetter * 3587c8e32cc1SDaniel Vetter * Userspace is only allowed to set one of the predefined values for enumeration 3588c8e32cc1SDaniel Vetter * properties. 3589c8e32cc1SDaniel Vetter * 3590c8e32cc1SDaniel Vetter * Returns: 3591c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3592c8e32cc1SDaniel Vetter */ 35934a67d391SSascha Hauer struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 35944a67d391SSascha Hauer const char *name, 35954a67d391SSascha Hauer const struct drm_prop_enum_list *props, 35964a67d391SSascha Hauer int num_values) 35974a67d391SSascha Hauer { 35984a67d391SSascha Hauer struct drm_property *property; 35994a67d391SSascha Hauer int i, ret; 36004a67d391SSascha Hauer 36014a67d391SSascha Hauer flags |= DRM_MODE_PROP_ENUM; 36024a67d391SSascha Hauer 36034a67d391SSascha Hauer property = drm_property_create(dev, flags, name, num_values); 36044a67d391SSascha Hauer if (!property) 36054a67d391SSascha Hauer return NULL; 36064a67d391SSascha Hauer 36074a67d391SSascha Hauer for (i = 0; i < num_values; i++) { 36084a67d391SSascha Hauer ret = drm_property_add_enum(property, i, 36094a67d391SSascha Hauer props[i].type, 36104a67d391SSascha Hauer props[i].name); 36114a67d391SSascha Hauer if (ret) { 36124a67d391SSascha Hauer drm_property_destroy(dev, property); 36134a67d391SSascha Hauer return NULL; 36144a67d391SSascha Hauer } 36154a67d391SSascha Hauer } 36164a67d391SSascha Hauer 36174a67d391SSascha Hauer return property; 36184a67d391SSascha Hauer } 36194a67d391SSascha Hauer EXPORT_SYMBOL(drm_property_create_enum); 36204a67d391SSascha Hauer 3621c8e32cc1SDaniel Vetter /** 36222aa9d2bcSThierry Reding * drm_property_create_bitmask - create a new bitmask property type 3623c8e32cc1SDaniel Vetter * @dev: drm device 3624c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3625c8e32cc1SDaniel Vetter * @name: name of the property 3626c8e32cc1SDaniel Vetter * @props: enumeration lists with property bitflags 3627295ee853SDaniel Vetter * @num_props: size of the @props array 3628295ee853SDaniel Vetter * @supported_bits: bitmask of all supported enumeration values 3629c8e32cc1SDaniel Vetter * 3630295ee853SDaniel Vetter * This creates a new bitmask drm property which can then be attached to a drm 3631c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3632c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3633c8e32cc1SDaniel Vetter * 3634c8e32cc1SDaniel Vetter * Compared to plain enumeration properties userspace is allowed to set any 3635c8e32cc1SDaniel Vetter * or'ed together combination of the predefined property bitflag values 3636c8e32cc1SDaniel Vetter * 3637c8e32cc1SDaniel Vetter * Returns: 3638c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3639c8e32cc1SDaniel Vetter */ 364049e27545SRob Clark struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 364149e27545SRob Clark int flags, const char *name, 364249e27545SRob Clark const struct drm_prop_enum_list *props, 36437689ffb3SVille Syrjälä int num_props, 36447689ffb3SVille Syrjälä uint64_t supported_bits) 364549e27545SRob Clark { 364649e27545SRob Clark struct drm_property *property; 36477689ffb3SVille Syrjälä int i, ret, index = 0; 36487689ffb3SVille Syrjälä int num_values = hweight64(supported_bits); 364949e27545SRob Clark 365049e27545SRob Clark flags |= DRM_MODE_PROP_BITMASK; 365149e27545SRob Clark 365249e27545SRob Clark property = drm_property_create(dev, flags, name, num_values); 365349e27545SRob Clark if (!property) 365449e27545SRob Clark return NULL; 36557689ffb3SVille Syrjälä for (i = 0; i < num_props; i++) { 36567689ffb3SVille Syrjälä if (!(supported_bits & (1ULL << props[i].type))) 36577689ffb3SVille Syrjälä continue; 365849e27545SRob Clark 36597689ffb3SVille Syrjälä if (WARN_ON(index >= num_values)) { 36607689ffb3SVille Syrjälä drm_property_destroy(dev, property); 36617689ffb3SVille Syrjälä return NULL; 36627689ffb3SVille Syrjälä } 36637689ffb3SVille Syrjälä 36647689ffb3SVille Syrjälä ret = drm_property_add_enum(property, index++, 366549e27545SRob Clark props[i].type, 366649e27545SRob Clark props[i].name); 366749e27545SRob Clark if (ret) { 366849e27545SRob Clark drm_property_destroy(dev, property); 366949e27545SRob Clark return NULL; 367049e27545SRob Clark } 367149e27545SRob Clark } 367249e27545SRob Clark 367349e27545SRob Clark return property; 367449e27545SRob Clark } 367549e27545SRob Clark EXPORT_SYMBOL(drm_property_create_bitmask); 367649e27545SRob Clark 3677ebc44cf3SRob Clark static struct drm_property *property_create_range(struct drm_device *dev, 3678ebc44cf3SRob Clark int flags, const char *name, 3679ebc44cf3SRob Clark uint64_t min, uint64_t max) 3680ebc44cf3SRob Clark { 3681ebc44cf3SRob Clark struct drm_property *property; 3682ebc44cf3SRob Clark 3683ebc44cf3SRob Clark property = drm_property_create(dev, flags, name, 2); 3684ebc44cf3SRob Clark if (!property) 3685ebc44cf3SRob Clark return NULL; 3686ebc44cf3SRob Clark 3687ebc44cf3SRob Clark property->values[0] = min; 3688ebc44cf3SRob Clark property->values[1] = max; 3689ebc44cf3SRob Clark 3690ebc44cf3SRob Clark return property; 3691ebc44cf3SRob Clark } 3692ebc44cf3SRob Clark 3693c8e32cc1SDaniel Vetter /** 3694960cd9d4SDaniel Vetter * drm_property_create_range - create a new unsigned ranged property type 3695c8e32cc1SDaniel Vetter * @dev: drm device 3696c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3697c8e32cc1SDaniel Vetter * @name: name of the property 3698c8e32cc1SDaniel Vetter * @min: minimum value of the property 3699c8e32cc1SDaniel Vetter * @max: maximum value of the property 3700c8e32cc1SDaniel Vetter * 3701c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3702c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3703c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3704c8e32cc1SDaniel Vetter * 3705960cd9d4SDaniel Vetter * Userspace is allowed to set any unsigned integer value in the (min, max) 3706960cd9d4SDaniel Vetter * range inclusive. 3707c8e32cc1SDaniel Vetter * 3708c8e32cc1SDaniel Vetter * Returns: 3709c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3710c8e32cc1SDaniel Vetter */ 3711d9bc3c02SSascha Hauer struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 3712d9bc3c02SSascha Hauer const char *name, 3713d9bc3c02SSascha Hauer uint64_t min, uint64_t max) 3714d9bc3c02SSascha Hauer { 3715ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, 3716ebc44cf3SRob Clark name, min, max); 3717d9bc3c02SSascha Hauer } 3718d9bc3c02SSascha Hauer EXPORT_SYMBOL(drm_property_create_range); 3719d9bc3c02SSascha Hauer 3720960cd9d4SDaniel Vetter /** 3721960cd9d4SDaniel Vetter * drm_property_create_signed_range - create a new signed ranged property type 3722960cd9d4SDaniel Vetter * @dev: drm device 3723960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3724960cd9d4SDaniel Vetter * @name: name of the property 3725960cd9d4SDaniel Vetter * @min: minimum value of the property 3726960cd9d4SDaniel Vetter * @max: maximum value of the property 3727960cd9d4SDaniel Vetter * 3728960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3729960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3730960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3731960cd9d4SDaniel Vetter * 3732960cd9d4SDaniel Vetter * Userspace is allowed to set any signed integer value in the (min, max) 3733960cd9d4SDaniel Vetter * range inclusive. 3734960cd9d4SDaniel Vetter * 3735960cd9d4SDaniel Vetter * Returns: 3736960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3737960cd9d4SDaniel Vetter */ 3738ebc44cf3SRob Clark struct drm_property *drm_property_create_signed_range(struct drm_device *dev, 3739ebc44cf3SRob Clark int flags, const char *name, 3740ebc44cf3SRob Clark int64_t min, int64_t max) 3741ebc44cf3SRob Clark { 3742ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, 3743ebc44cf3SRob Clark name, I642U64(min), I642U64(max)); 3744ebc44cf3SRob Clark } 3745ebc44cf3SRob Clark EXPORT_SYMBOL(drm_property_create_signed_range); 3746ebc44cf3SRob Clark 3747960cd9d4SDaniel Vetter /** 3748960cd9d4SDaniel Vetter * drm_property_create_object - create a new object property type 3749960cd9d4SDaniel Vetter * @dev: drm device 3750960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3751960cd9d4SDaniel Vetter * @name: name of the property 3752960cd9d4SDaniel Vetter * @type: object type from DRM_MODE_OBJECT_* defines 3753960cd9d4SDaniel Vetter * 3754960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3755960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3756960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3757960cd9d4SDaniel Vetter * 3758960cd9d4SDaniel Vetter * Userspace is only allowed to set this to any property value of the given 3759960cd9d4SDaniel Vetter * @type. Only useful for atomic properties, which is enforced. 3760960cd9d4SDaniel Vetter * 3761960cd9d4SDaniel Vetter * Returns: 3762960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3763960cd9d4SDaniel Vetter */ 376498f75de4SRob Clark struct drm_property *drm_property_create_object(struct drm_device *dev, 376598f75de4SRob Clark int flags, const char *name, uint32_t type) 376698f75de4SRob Clark { 376798f75de4SRob Clark struct drm_property *property; 376898f75de4SRob Clark 376998f75de4SRob Clark flags |= DRM_MODE_PROP_OBJECT; 377098f75de4SRob Clark 3771960cd9d4SDaniel Vetter if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) 3772960cd9d4SDaniel Vetter return NULL; 3773960cd9d4SDaniel Vetter 377498f75de4SRob Clark property = drm_property_create(dev, flags, name, 1); 377598f75de4SRob Clark if (!property) 377698f75de4SRob Clark return NULL; 377798f75de4SRob Clark 377898f75de4SRob Clark property->values[0] = type; 377998f75de4SRob Clark 378098f75de4SRob Clark return property; 378198f75de4SRob Clark } 378298f75de4SRob Clark EXPORT_SYMBOL(drm_property_create_object); 378398f75de4SRob Clark 3784c8e32cc1SDaniel Vetter /** 3785960cd9d4SDaniel Vetter * drm_property_create_bool - create a new boolean property type 3786960cd9d4SDaniel Vetter * @dev: drm device 3787960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3788960cd9d4SDaniel Vetter * @name: name of the property 3789960cd9d4SDaniel Vetter * 3790960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3791960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3792960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3793960cd9d4SDaniel Vetter * 3794960cd9d4SDaniel Vetter * This is implemented as a ranged property with only {0, 1} as valid values. 3795960cd9d4SDaniel Vetter * 3796960cd9d4SDaniel Vetter * Returns: 3797960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3798960cd9d4SDaniel Vetter */ 3799960cd9d4SDaniel Vetter struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, 3800960cd9d4SDaniel Vetter const char *name) 3801960cd9d4SDaniel Vetter { 3802960cd9d4SDaniel Vetter return drm_property_create_range(dev, flags, name, 0, 1); 3803960cd9d4SDaniel Vetter } 3804960cd9d4SDaniel Vetter EXPORT_SYMBOL(drm_property_create_bool); 3805960cd9d4SDaniel Vetter 3806960cd9d4SDaniel Vetter /** 3807c8e32cc1SDaniel Vetter * drm_property_add_enum - add a possible value to an enumeration property 3808c8e32cc1SDaniel Vetter * @property: enumeration property to change 3809c8e32cc1SDaniel Vetter * @index: index of the new enumeration 3810c8e32cc1SDaniel Vetter * @value: value of the new enumeration 3811c8e32cc1SDaniel Vetter * @name: symbolic name of the new enumeration 3812c8e32cc1SDaniel Vetter * 3813c8e32cc1SDaniel Vetter * This functions adds enumerations to a property. 3814c8e32cc1SDaniel Vetter * 3815c8e32cc1SDaniel Vetter * It's use is deprecated, drivers should use one of the more specific helpers 3816c8e32cc1SDaniel Vetter * to directly create the property with all enumerations already attached. 3817c8e32cc1SDaniel Vetter * 3818c8e32cc1SDaniel Vetter * Returns: 3819c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3820c8e32cc1SDaniel Vetter */ 3821f453ba04SDave Airlie int drm_property_add_enum(struct drm_property *property, int index, 3822f453ba04SDave Airlie uint64_t value, const char *name) 3823f453ba04SDave Airlie { 3824f453ba04SDave Airlie struct drm_property_enum *prop_enum; 3825f453ba04SDave Airlie 38265ea22f24SRob Clark if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 38275ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) 382849e27545SRob Clark return -EINVAL; 382949e27545SRob Clark 383049e27545SRob Clark /* 383149e27545SRob Clark * Bitmask enum properties have the additional constraint of values 383249e27545SRob Clark * from 0 to 63 383349e27545SRob Clark */ 38345ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && 38355ea22f24SRob Clark (value > 63)) 3836f453ba04SDave Airlie return -EINVAL; 3837f453ba04SDave Airlie 38383758b341SDaniel Vetter if (!list_empty(&property->enum_list)) { 38393758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 3840f453ba04SDave Airlie if (prop_enum->value == value) { 3841f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 3842f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 3843f453ba04SDave Airlie return 0; 3844f453ba04SDave Airlie } 3845f453ba04SDave Airlie } 3846f453ba04SDave Airlie } 3847f453ba04SDave Airlie 3848f453ba04SDave Airlie prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); 3849f453ba04SDave Airlie if (!prop_enum) 3850f453ba04SDave Airlie return -ENOMEM; 3851f453ba04SDave Airlie 3852f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 3853f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 3854f453ba04SDave Airlie prop_enum->value = value; 3855f453ba04SDave Airlie 3856f453ba04SDave Airlie property->values[index] = value; 38573758b341SDaniel Vetter list_add_tail(&prop_enum->head, &property->enum_list); 3858f453ba04SDave Airlie return 0; 3859f453ba04SDave Airlie } 3860f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_add_enum); 3861f453ba04SDave Airlie 3862c8e32cc1SDaniel Vetter /** 3863c8e32cc1SDaniel Vetter * drm_property_destroy - destroy a drm property 3864c8e32cc1SDaniel Vetter * @dev: drm device 3865c8e32cc1SDaniel Vetter * @property: property to destry 3866c8e32cc1SDaniel Vetter * 3867c8e32cc1SDaniel Vetter * This function frees a property including any attached resources like 3868c8e32cc1SDaniel Vetter * enumeration values. 3869c8e32cc1SDaniel Vetter */ 3870f453ba04SDave Airlie void drm_property_destroy(struct drm_device *dev, struct drm_property *property) 3871f453ba04SDave Airlie { 3872f453ba04SDave Airlie struct drm_property_enum *prop_enum, *pt; 3873f453ba04SDave Airlie 38743758b341SDaniel Vetter list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { 3875f453ba04SDave Airlie list_del(&prop_enum->head); 3876f453ba04SDave Airlie kfree(prop_enum); 3877f453ba04SDave Airlie } 3878f453ba04SDave Airlie 3879f453ba04SDave Airlie if (property->num_values) 3880f453ba04SDave Airlie kfree(property->values); 3881f453ba04SDave Airlie drm_mode_object_put(dev, &property->base); 3882f453ba04SDave Airlie list_del(&property->head); 3883f453ba04SDave Airlie kfree(property); 3884f453ba04SDave Airlie } 3885f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_destroy); 3886f453ba04SDave Airlie 3887c8e32cc1SDaniel Vetter /** 3888c8e32cc1SDaniel Vetter * drm_object_attach_property - attach a property to a modeset object 3889c8e32cc1SDaniel Vetter * @obj: drm modeset object 3890c8e32cc1SDaniel Vetter * @property: property to attach 3891c8e32cc1SDaniel Vetter * @init_val: initial value of the property 3892c8e32cc1SDaniel Vetter * 3893c8e32cc1SDaniel Vetter * This attaches the given property to the modeset object with the given initial 3894c8e32cc1SDaniel Vetter * value. Currently this function cannot fail since the properties are stored in 3895c8e32cc1SDaniel Vetter * a statically sized array. 3896c8e32cc1SDaniel Vetter */ 3897c543188aSPaulo Zanoni void drm_object_attach_property(struct drm_mode_object *obj, 3898c543188aSPaulo Zanoni struct drm_property *property, 3899c543188aSPaulo Zanoni uint64_t init_val) 3900c543188aSPaulo Zanoni { 39017f88a9beSPaulo Zanoni int count = obj->properties->count; 3902c543188aSPaulo Zanoni 39037f88a9beSPaulo Zanoni if (count == DRM_OBJECT_MAX_PROPERTY) { 39047f88a9beSPaulo Zanoni WARN(1, "Failed to attach object property (type: 0x%x). Please " 39057f88a9beSPaulo Zanoni "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " 39067f88a9beSPaulo Zanoni "you see this message on the same object type.\n", 39077f88a9beSPaulo Zanoni obj->type); 3908c543188aSPaulo Zanoni return; 3909c543188aSPaulo Zanoni } 3910c543188aSPaulo Zanoni 3911b17cd757SRob Clark obj->properties->properties[count] = property; 39127f88a9beSPaulo Zanoni obj->properties->values[count] = init_val; 39137f88a9beSPaulo Zanoni obj->properties->count++; 391488a48e29SRob Clark if (property->flags & DRM_MODE_PROP_ATOMIC) 391588a48e29SRob Clark obj->properties->atomic_count++; 3916c543188aSPaulo Zanoni } 3917c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_attach_property); 3918c543188aSPaulo Zanoni 3919c8e32cc1SDaniel Vetter /** 3920c8e32cc1SDaniel Vetter * drm_object_property_set_value - set the value of a property 3921c8e32cc1SDaniel Vetter * @obj: drm mode object to set property value for 3922c8e32cc1SDaniel Vetter * @property: property to set 3923c8e32cc1SDaniel Vetter * @val: value the property should be set to 3924c8e32cc1SDaniel Vetter * 3925c8e32cc1SDaniel Vetter * This functions sets a given property on a given object. This function only 3926c8e32cc1SDaniel Vetter * changes the software state of the property, it does not call into the 3927c8e32cc1SDaniel Vetter * driver's ->set_property callback. 3928c8e32cc1SDaniel Vetter * 3929c8e32cc1SDaniel Vetter * Returns: 3930c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3931c8e32cc1SDaniel Vetter */ 3932c543188aSPaulo Zanoni int drm_object_property_set_value(struct drm_mode_object *obj, 3933c543188aSPaulo Zanoni struct drm_property *property, uint64_t val) 3934c543188aSPaulo Zanoni { 3935c543188aSPaulo Zanoni int i; 3936c543188aSPaulo Zanoni 39377f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 3938b17cd757SRob Clark if (obj->properties->properties[i] == property) { 3939c543188aSPaulo Zanoni obj->properties->values[i] = val; 3940c543188aSPaulo Zanoni return 0; 3941c543188aSPaulo Zanoni } 3942c543188aSPaulo Zanoni } 3943c543188aSPaulo Zanoni 3944c543188aSPaulo Zanoni return -EINVAL; 3945c543188aSPaulo Zanoni } 3946c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_set_value); 3947c543188aSPaulo Zanoni 3948c8e32cc1SDaniel Vetter /** 3949c8e32cc1SDaniel Vetter * drm_object_property_get_value - retrieve the value of a property 3950c8e32cc1SDaniel Vetter * @obj: drm mode object to get property value from 3951c8e32cc1SDaniel Vetter * @property: property to retrieve 3952c8e32cc1SDaniel Vetter * @val: storage for the property value 3953c8e32cc1SDaniel Vetter * 3954c8e32cc1SDaniel Vetter * This function retrieves the softare state of the given property for the given 3955c8e32cc1SDaniel Vetter * property. Since there is no driver callback to retrieve the current property 3956c8e32cc1SDaniel Vetter * value this might be out of sync with the hardware, depending upon the driver 3957c8e32cc1SDaniel Vetter * and property. 3958c8e32cc1SDaniel Vetter * 3959c8e32cc1SDaniel Vetter * Returns: 3960c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3961c8e32cc1SDaniel Vetter */ 3962c543188aSPaulo Zanoni int drm_object_property_get_value(struct drm_mode_object *obj, 3963c543188aSPaulo Zanoni struct drm_property *property, uint64_t *val) 3964c543188aSPaulo Zanoni { 3965c543188aSPaulo Zanoni int i; 3966c543188aSPaulo Zanoni 396788a48e29SRob Clark /* read-only properties bypass atomic mechanism and still store 396888a48e29SRob Clark * their value in obj->properties->values[].. mostly to avoid 396988a48e29SRob Clark * having to deal w/ EDID and similar props in atomic paths: 397088a48e29SRob Clark */ 397188a48e29SRob Clark if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && 397288a48e29SRob Clark !(property->flags & DRM_MODE_PROP_IMMUTABLE)) 397388a48e29SRob Clark return drm_atomic_get_property(obj, property, val); 397488a48e29SRob Clark 39757f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 3976b17cd757SRob Clark if (obj->properties->properties[i] == property) { 3977c543188aSPaulo Zanoni *val = obj->properties->values[i]; 3978c543188aSPaulo Zanoni return 0; 3979c543188aSPaulo Zanoni } 3980c543188aSPaulo Zanoni } 3981c543188aSPaulo Zanoni 3982c543188aSPaulo Zanoni return -EINVAL; 3983c543188aSPaulo Zanoni } 3984c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_get_value); 3985c543188aSPaulo Zanoni 3986c8e32cc1SDaniel Vetter /** 39871a498633SDaniel Vetter * drm_mode_getproperty_ioctl - get the property metadata 3988c8e32cc1SDaniel Vetter * @dev: DRM device 3989c8e32cc1SDaniel Vetter * @data: ioctl data 3990c8e32cc1SDaniel Vetter * @file_priv: DRM file info 3991c8e32cc1SDaniel Vetter * 39921a498633SDaniel Vetter * This function retrieves the metadata for a given property, like the different 39931a498633SDaniel Vetter * possible values for an enum property or the limits for a range property. 39941a498633SDaniel Vetter * 39951a498633SDaniel Vetter * Blob properties are special 3996c8e32cc1SDaniel Vetter * 3997c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3998c8e32cc1SDaniel Vetter * 3999c8e32cc1SDaniel Vetter * Returns: 40001a498633SDaniel Vetter * Zero on success, negative errno on failure. 4001c8e32cc1SDaniel Vetter */ 4002f453ba04SDave Airlie int drm_mode_getproperty_ioctl(struct drm_device *dev, 4003f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4004f453ba04SDave Airlie { 4005f453ba04SDave Airlie struct drm_mode_get_property *out_resp = data; 4006f453ba04SDave Airlie struct drm_property *property; 4007f453ba04SDave Airlie int enum_count = 0; 4008f453ba04SDave Airlie int value_count = 0; 4009f453ba04SDave Airlie int ret = 0, i; 4010f453ba04SDave Airlie int copied; 4011f453ba04SDave Airlie struct drm_property_enum *prop_enum; 4012f453ba04SDave Airlie struct drm_mode_property_enum __user *enum_ptr; 4013f453ba04SDave Airlie uint64_t __user *values_ptr; 4014f453ba04SDave Airlie 4015fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4016fb3b06c8SDave Airlie return -EINVAL; 4017fb3b06c8SDave Airlie 401884849903SDaniel Vetter drm_modeset_lock_all(dev); 4019a2b34e22SRob Clark property = drm_property_find(dev, out_resp->prop_id); 4020a2b34e22SRob Clark if (!property) { 4021f27657f2SVille Syrjälä ret = -ENOENT; 4022f453ba04SDave Airlie goto done; 4023f453ba04SDave Airlie } 4024f453ba04SDave Airlie 40255ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 40265ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 40273758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) 4028f453ba04SDave Airlie enum_count++; 4029f453ba04SDave Airlie } 4030f453ba04SDave Airlie 4031f453ba04SDave Airlie value_count = property->num_values; 4032f453ba04SDave Airlie 4033f453ba04SDave Airlie strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); 4034f453ba04SDave Airlie out_resp->name[DRM_PROP_NAME_LEN-1] = 0; 4035f453ba04SDave Airlie out_resp->flags = property->flags; 4036f453ba04SDave Airlie 4037f453ba04SDave Airlie if ((out_resp->count_values >= value_count) && value_count) { 403881f6c7f8SVille Syrjälä values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; 4039f453ba04SDave Airlie for (i = 0; i < value_count; i++) { 4040f453ba04SDave Airlie if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { 4041f453ba04SDave Airlie ret = -EFAULT; 4042f453ba04SDave Airlie goto done; 4043f453ba04SDave Airlie } 4044f453ba04SDave Airlie } 4045f453ba04SDave Airlie } 4046f453ba04SDave Airlie out_resp->count_values = value_count; 4047f453ba04SDave Airlie 40485ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 40495ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 4050f453ba04SDave Airlie if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { 4051f453ba04SDave Airlie copied = 0; 405281f6c7f8SVille Syrjälä enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; 40533758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 4054f453ba04SDave Airlie 4055f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { 4056f453ba04SDave Airlie ret = -EFAULT; 4057f453ba04SDave Airlie goto done; 4058f453ba04SDave Airlie } 4059f453ba04SDave Airlie 4060f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].name, 4061f453ba04SDave Airlie &prop_enum->name, DRM_PROP_NAME_LEN)) { 4062f453ba04SDave Airlie ret = -EFAULT; 4063f453ba04SDave Airlie goto done; 4064f453ba04SDave Airlie } 4065f453ba04SDave Airlie copied++; 4066f453ba04SDave Airlie } 4067f453ba04SDave Airlie } 4068f453ba04SDave Airlie out_resp->count_enum_blobs = enum_count; 4069f453ba04SDave Airlie } 4070f453ba04SDave Airlie 40713758b341SDaniel Vetter /* 40723758b341SDaniel Vetter * NOTE: The idea seems to have been to use this to read all the blob 40733758b341SDaniel Vetter * property values. But nothing ever added them to the corresponding 40743758b341SDaniel Vetter * list, userspace always used the special-purpose get_blob ioctl to 40753758b341SDaniel Vetter * read the value for a blob property. It also doesn't make a lot of 40763758b341SDaniel Vetter * sense to return values here when everything else is just metadata for 40773758b341SDaniel Vetter * the property itself. 40783758b341SDaniel Vetter */ 40793758b341SDaniel Vetter if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 40803758b341SDaniel Vetter out_resp->count_enum_blobs = 0; 4081f453ba04SDave Airlie done: 408284849903SDaniel Vetter drm_modeset_unlock_all(dev); 4083f453ba04SDave Airlie return ret; 4084f453ba04SDave Airlie } 4085f453ba04SDave Airlie 408699531d9bSDaniel Stone /** 408799531d9bSDaniel Stone * drm_property_create_blob - Create new blob property 408899531d9bSDaniel Stone * 408999531d9bSDaniel Stone * Creates a new blob property for a specified DRM device, optionally 409099531d9bSDaniel Stone * copying data. 409199531d9bSDaniel Stone * 409299531d9bSDaniel Stone * @dev: DRM device to create property for 409399531d9bSDaniel Stone * @length: Length to allocate for blob data 409499531d9bSDaniel Stone * @data: If specified, copies data into blob 409510e8cb7eSDaniel Stone * 409610e8cb7eSDaniel Stone * Returns: 409710e8cb7eSDaniel Stone * New blob property with a single reference on success, or an ERR_PTR 409810e8cb7eSDaniel Stone * value on failure. 409999531d9bSDaniel Stone */ 41006bcacf51SDaniel Stone struct drm_property_blob * 4101ecbbe59bSThierry Reding drm_property_create_blob(struct drm_device *dev, size_t length, 410212e6cecdSThierry Reding const void *data) 4103f453ba04SDave Airlie { 4104f453ba04SDave Airlie struct drm_property_blob *blob; 41056bfc56aaSVille Syrjälä int ret; 4106f453ba04SDave Airlie 410799531d9bSDaniel Stone if (!length) 410810e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 4109f453ba04SDave Airlie 4110f453ba04SDave Airlie blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); 4111f453ba04SDave Airlie if (!blob) 411210e8cb7eSDaniel Stone return ERR_PTR(-ENOMEM); 4113f453ba04SDave Airlie 4114e2f5d2eaSDaniel Stone /* This must be explicitly initialised, so we can safely call list_del 4115e2f5d2eaSDaniel Stone * on it in the removal handler, even if it isn't in a file list. */ 4116e2f5d2eaSDaniel Stone INIT_LIST_HEAD(&blob->head_file); 4117f453ba04SDave Airlie blob->length = length; 41186bcacf51SDaniel Stone blob->dev = dev; 4119f453ba04SDave Airlie 412099531d9bSDaniel Stone if (data) 4121f453ba04SDave Airlie memcpy(blob->data, data, length); 4122f453ba04SDave Airlie 41238fb6e7a5SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 41248fb6e7a5SDaniel Stone 41258fb6e7a5SDaniel Stone ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); 41268fb6e7a5SDaniel Stone if (ret) { 41278fb6e7a5SDaniel Stone kfree(blob); 41288fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 412910e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 41308fb6e7a5SDaniel Stone } 41318fb6e7a5SDaniel Stone 41326bcacf51SDaniel Stone kref_init(&blob->refcount); 41336bcacf51SDaniel Stone 4134e2f5d2eaSDaniel Stone list_add_tail(&blob->head_global, 4135e2f5d2eaSDaniel Stone &dev->mode_config.property_blob_list); 41368fb6e7a5SDaniel Stone 41378fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 41388fb6e7a5SDaniel Stone 4139f453ba04SDave Airlie return blob; 4140f453ba04SDave Airlie } 41416bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_create_blob); 4142f453ba04SDave Airlie 41436bcacf51SDaniel Stone /** 41446bcacf51SDaniel Stone * drm_property_free_blob - Blob property destructor 41456bcacf51SDaniel Stone * 41466bcacf51SDaniel Stone * Internal free function for blob properties; must not be used directly. 41476bcacf51SDaniel Stone * 4148f102c16eSDaniel Stone * @kref: Reference 41496bcacf51SDaniel Stone */ 41506bcacf51SDaniel Stone static void drm_property_free_blob(struct kref *kref) 4151f453ba04SDave Airlie { 41526bcacf51SDaniel Stone struct drm_property_blob *blob = 41536bcacf51SDaniel Stone container_of(kref, struct drm_property_blob, refcount); 41546bcacf51SDaniel Stone 41556bcacf51SDaniel Stone WARN_ON(!mutex_is_locked(&blob->dev->mode_config.blob_lock)); 41566bcacf51SDaniel Stone 4157e2f5d2eaSDaniel Stone list_del(&blob->head_global); 4158e2f5d2eaSDaniel Stone list_del(&blob->head_file); 41596bcacf51SDaniel Stone drm_mode_object_put(blob->dev, &blob->base); 41608fb6e7a5SDaniel Stone 4161f453ba04SDave Airlie kfree(blob); 4162f453ba04SDave Airlie } 4163f453ba04SDave Airlie 4164c8e32cc1SDaniel Vetter /** 41656bcacf51SDaniel Stone * drm_property_unreference_blob - Unreference a blob property 41666bcacf51SDaniel Stone * 41676bcacf51SDaniel Stone * Drop a reference on a blob property. May free the object. 41686bcacf51SDaniel Stone * 4169f102c16eSDaniel Stone * @blob: Pointer to blob property 41706bcacf51SDaniel Stone */ 41716bcacf51SDaniel Stone void drm_property_unreference_blob(struct drm_property_blob *blob) 41726bcacf51SDaniel Stone { 41736bcacf51SDaniel Stone struct drm_device *dev; 41746bcacf51SDaniel Stone 41756bcacf51SDaniel Stone if (!blob) 41766bcacf51SDaniel Stone return; 41776bcacf51SDaniel Stone 41786bcacf51SDaniel Stone dev = blob->dev; 41796bcacf51SDaniel Stone 41806bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 41816bcacf51SDaniel Stone 41826bcacf51SDaniel Stone if (kref_put_mutex(&blob->refcount, drm_property_free_blob, 41836bcacf51SDaniel Stone &dev->mode_config.blob_lock)) 41846bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 41856bcacf51SDaniel Stone else 41866bcacf51SDaniel Stone might_lock(&dev->mode_config.blob_lock); 41876bcacf51SDaniel Stone } 41886bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_unreference_blob); 41896bcacf51SDaniel Stone 41906bcacf51SDaniel Stone /** 41916bcacf51SDaniel Stone * drm_property_unreference_blob_locked - Unreference a blob property with blob_lock held 41926bcacf51SDaniel Stone * 41936bcacf51SDaniel Stone * Drop a reference on a blob property. May free the object. This must be 41946bcacf51SDaniel Stone * called with blob_lock held. 41956bcacf51SDaniel Stone * 4196f102c16eSDaniel Stone * @blob: Pointer to blob property 41976bcacf51SDaniel Stone */ 41986bcacf51SDaniel Stone static void drm_property_unreference_blob_locked(struct drm_property_blob *blob) 41996bcacf51SDaniel Stone { 42006bcacf51SDaniel Stone if (!blob) 42016bcacf51SDaniel Stone return; 42026bcacf51SDaniel Stone 42036bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 42046bcacf51SDaniel Stone 42056bcacf51SDaniel Stone kref_put(&blob->refcount, drm_property_free_blob); 42066bcacf51SDaniel Stone } 42076bcacf51SDaniel Stone 42086bcacf51SDaniel Stone /** 4209e2f5d2eaSDaniel Stone * drm_property_destroy_user_blobs - destroy all blobs created by this client 4210e2f5d2eaSDaniel Stone * @dev: DRM device 4211e2f5d2eaSDaniel Stone * @file_priv: destroy all blobs owned by this file handle 4212e2f5d2eaSDaniel Stone */ 4213e2f5d2eaSDaniel Stone void drm_property_destroy_user_blobs(struct drm_device *dev, 4214e2f5d2eaSDaniel Stone struct drm_file *file_priv) 4215e2f5d2eaSDaniel Stone { 4216e2f5d2eaSDaniel Stone struct drm_property_blob *blob, *bt; 4217e2f5d2eaSDaniel Stone 4218e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4219e2f5d2eaSDaniel Stone 4220e2f5d2eaSDaniel Stone list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { 4221e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4222e2f5d2eaSDaniel Stone drm_property_unreference_blob_locked(blob); 4223e2f5d2eaSDaniel Stone } 4224e2f5d2eaSDaniel Stone 4225e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4226e2f5d2eaSDaniel Stone } 4227e2f5d2eaSDaniel Stone 4228e2f5d2eaSDaniel Stone /** 42296bcacf51SDaniel Stone * drm_property_reference_blob - Take a reference on an existing property 42306bcacf51SDaniel Stone * 42316bcacf51SDaniel Stone * Take a new reference on an existing blob property. 42326bcacf51SDaniel Stone * 4233f102c16eSDaniel Stone * @blob: Pointer to blob property 42346bcacf51SDaniel Stone */ 42356bcacf51SDaniel Stone struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) 42366bcacf51SDaniel Stone { 42376bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 42386bcacf51SDaniel Stone kref_get(&blob->refcount); 42396bcacf51SDaniel Stone return blob; 42406bcacf51SDaniel Stone } 42416bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_reference_blob); 42426bcacf51SDaniel Stone 42436bcacf51SDaniel Stone /* 42446bcacf51SDaniel Stone * Like drm_property_lookup_blob, but does not return an additional reference. 42456bcacf51SDaniel Stone * Must be called with blob_lock held. 42466bcacf51SDaniel Stone */ 42476bcacf51SDaniel Stone static struct drm_property_blob *__drm_property_lookup_blob(struct drm_device *dev, 42486bcacf51SDaniel Stone uint32_t id) 42496bcacf51SDaniel Stone { 42506bcacf51SDaniel Stone struct drm_mode_object *obj = NULL; 42516bcacf51SDaniel Stone struct drm_property_blob *blob; 42526bcacf51SDaniel Stone 42536bcacf51SDaniel Stone WARN_ON(!mutex_is_locked(&dev->mode_config.blob_lock)); 42546bcacf51SDaniel Stone 42556bcacf51SDaniel Stone mutex_lock(&dev->mode_config.idr_mutex); 42566bcacf51SDaniel Stone obj = idr_find(&dev->mode_config.crtc_idr, id); 42576bcacf51SDaniel Stone if (!obj || (obj->type != DRM_MODE_OBJECT_BLOB) || (obj->id != id)) 42586bcacf51SDaniel Stone blob = NULL; 42596bcacf51SDaniel Stone else 42606bcacf51SDaniel Stone blob = obj_to_blob(obj); 42616bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.idr_mutex); 42626bcacf51SDaniel Stone 4263f453ba04SDave Airlie return blob; 4264f453ba04SDave Airlie } 4265f453ba04SDave Airlie 42666bcacf51SDaniel Stone /** 42676bcacf51SDaniel Stone * drm_property_lookup_blob - look up a blob property and take a reference 42686bcacf51SDaniel Stone * @dev: drm device 42696bcacf51SDaniel Stone * @id: id of the blob property 42706bcacf51SDaniel Stone * 42716bcacf51SDaniel Stone * If successful, this takes an additional reference to the blob property. 42726bcacf51SDaniel Stone * callers need to make sure to eventually unreference the returned property 42736bcacf51SDaniel Stone * again, using @drm_property_unreference_blob. 42746bcacf51SDaniel Stone */ 42756bcacf51SDaniel Stone struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, 42766bcacf51SDaniel Stone uint32_t id) 4277f453ba04SDave Airlie { 42786bcacf51SDaniel Stone struct drm_property_blob *blob; 42796bcacf51SDaniel Stone 42806bcacf51SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 42816bcacf51SDaniel Stone blob = __drm_property_lookup_blob(dev, id); 42826bcacf51SDaniel Stone if (blob) { 42836bcacf51SDaniel Stone if (!kref_get_unless_zero(&blob->refcount)) 42846bcacf51SDaniel Stone blob = NULL; 42856bcacf51SDaniel Stone } 42866bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 42876bcacf51SDaniel Stone 42886bcacf51SDaniel Stone return blob; 42896bcacf51SDaniel Stone } 42906bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_lookup_blob); 42916bcacf51SDaniel Stone 42926bcacf51SDaniel Stone /** 4293d2ed3436SDaniel Stone * drm_property_replace_global_blob - atomically replace existing blob property 4294d2ed3436SDaniel Stone * @dev: drm device 4295d2ed3436SDaniel Stone * @replace: location of blob property pointer to be replaced 4296d2ed3436SDaniel Stone * @length: length of data for new blob, or 0 for no data 4297d2ed3436SDaniel Stone * @data: content for new blob, or NULL for no data 4298d2ed3436SDaniel Stone * @obj_holds_id: optional object for property holding blob ID 4299d2ed3436SDaniel Stone * @prop_holds_id: optional property holding blob ID 4300d2ed3436SDaniel Stone * @return 0 on success or error on failure 4301d2ed3436SDaniel Stone * 4302d2ed3436SDaniel Stone * This function will atomically replace a global property in the blob list, 4303d2ed3436SDaniel Stone * optionally updating a property which holds the ID of that property. It is 4304d2ed3436SDaniel Stone * guaranteed to be atomic: no caller will be allowed to see intermediate 4305d2ed3436SDaniel Stone * results, and either the entire operation will succeed and clean up the 4306d2ed3436SDaniel Stone * previous property, or it will fail and the state will be unchanged. 4307d2ed3436SDaniel Stone * 4308d2ed3436SDaniel Stone * If length is 0 or data is NULL, no new blob will be created, and the holding 4309d2ed3436SDaniel Stone * property, if specified, will be set to 0. 4310d2ed3436SDaniel Stone * 4311d2ed3436SDaniel Stone * Access to the replace pointer is assumed to be protected by the caller, e.g. 4312d2ed3436SDaniel Stone * by holding the relevant modesetting object lock for its parent. 4313d2ed3436SDaniel Stone * 4314d2ed3436SDaniel Stone * For example, a drm_connector has a 'PATH' property, which contains the ID 4315d2ed3436SDaniel Stone * of a blob property with the value of the MST path information. Calling this 4316d2ed3436SDaniel Stone * function with replace pointing to the connector's path_blob_ptr, length and 4317d2ed3436SDaniel Stone * data set for the new path information, obj_holds_id set to the connector's 4318d2ed3436SDaniel Stone * base object, and prop_holds_id set to the path property name, will perform 4319d2ed3436SDaniel Stone * a completely atomic update. The access to path_blob_ptr is protected by the 4320d2ed3436SDaniel Stone * caller holding a lock on the connector. 4321d2ed3436SDaniel Stone */ 4322d2ed3436SDaniel Stone static int drm_property_replace_global_blob(struct drm_device *dev, 4323d2ed3436SDaniel Stone struct drm_property_blob **replace, 4324d2ed3436SDaniel Stone size_t length, 4325d2ed3436SDaniel Stone const void *data, 4326d2ed3436SDaniel Stone struct drm_mode_object *obj_holds_id, 4327d2ed3436SDaniel Stone struct drm_property *prop_holds_id) 4328d2ed3436SDaniel Stone { 4329d2ed3436SDaniel Stone struct drm_property_blob *new_blob = NULL; 4330d2ed3436SDaniel Stone struct drm_property_blob *old_blob = NULL; 4331d2ed3436SDaniel Stone int ret; 4332d2ed3436SDaniel Stone 4333d2ed3436SDaniel Stone WARN_ON(replace == NULL); 4334d2ed3436SDaniel Stone 4335d2ed3436SDaniel Stone old_blob = *replace; 4336d2ed3436SDaniel Stone 4337d2ed3436SDaniel Stone if (length && data) { 4338d2ed3436SDaniel Stone new_blob = drm_property_create_blob(dev, length, data); 433910e8cb7eSDaniel Stone if (IS_ERR(new_blob)) 434010e8cb7eSDaniel Stone return PTR_ERR(new_blob); 4341d2ed3436SDaniel Stone } 4342d2ed3436SDaniel Stone 4343d2ed3436SDaniel Stone /* This does not need to be synchronised with blob_lock, as the 4344d2ed3436SDaniel Stone * get_properties ioctl locks all modesetting objects, and 4345d2ed3436SDaniel Stone * obj_holds_id must be locked before calling here, so we cannot 4346d2ed3436SDaniel Stone * have its value out of sync with the list membership modified 4347d2ed3436SDaniel Stone * below under blob_lock. */ 4348d2ed3436SDaniel Stone if (obj_holds_id) { 4349d2ed3436SDaniel Stone ret = drm_object_property_set_value(obj_holds_id, 4350d2ed3436SDaniel Stone prop_holds_id, 4351d2ed3436SDaniel Stone new_blob ? 4352d2ed3436SDaniel Stone new_blob->base.id : 0); 4353d2ed3436SDaniel Stone if (ret != 0) 4354d2ed3436SDaniel Stone goto err_created; 4355d2ed3436SDaniel Stone } 4356d2ed3436SDaniel Stone 43576bcacf51SDaniel Stone drm_property_unreference_blob(old_blob); 4358d2ed3436SDaniel Stone *replace = new_blob; 4359d2ed3436SDaniel Stone 4360d2ed3436SDaniel Stone return 0; 4361d2ed3436SDaniel Stone 4362d2ed3436SDaniel Stone err_created: 43636bcacf51SDaniel Stone drm_property_unreference_blob(new_blob); 4364d2ed3436SDaniel Stone return ret; 4365f453ba04SDave Airlie } 4366f453ba04SDave Airlie 4367c8e32cc1SDaniel Vetter /** 4368c8e32cc1SDaniel Vetter * drm_mode_getblob_ioctl - get the contents of a blob property value 4369c8e32cc1SDaniel Vetter * @dev: DRM device 4370c8e32cc1SDaniel Vetter * @data: ioctl data 4371c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4372c8e32cc1SDaniel Vetter * 4373c8e32cc1SDaniel Vetter * This function retrieves the contents of a blob property. The value stored in 4374c8e32cc1SDaniel Vetter * an object's blob property is just a normal modeset object id. 4375c8e32cc1SDaniel Vetter * 4376c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4377c8e32cc1SDaniel Vetter * 4378c8e32cc1SDaniel Vetter * Returns: 43791a498633SDaniel Vetter * Zero on success, negative errno on failure. 4380c8e32cc1SDaniel Vetter */ 4381f453ba04SDave Airlie int drm_mode_getblob_ioctl(struct drm_device *dev, 4382f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4383f453ba04SDave Airlie { 4384f453ba04SDave Airlie struct drm_mode_get_blob *out_resp = data; 4385f453ba04SDave Airlie struct drm_property_blob *blob; 4386f453ba04SDave Airlie int ret = 0; 438781f6c7f8SVille Syrjälä void __user *blob_ptr; 4388f453ba04SDave Airlie 4389fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4390fb3b06c8SDave Airlie return -EINVAL; 4391fb3b06c8SDave Airlie 439284849903SDaniel Vetter drm_modeset_lock_all(dev); 43938fb6e7a5SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 43946bcacf51SDaniel Stone blob = __drm_property_lookup_blob(dev, out_resp->blob_id); 4395a2b34e22SRob Clark if (!blob) { 4396f27657f2SVille Syrjälä ret = -ENOENT; 4397f453ba04SDave Airlie goto done; 4398f453ba04SDave Airlie } 4399f453ba04SDave Airlie 4400f453ba04SDave Airlie if (out_resp->length == blob->length) { 440181f6c7f8SVille Syrjälä blob_ptr = (void __user *)(unsigned long)out_resp->data; 4402f453ba04SDave Airlie if (copy_to_user(blob_ptr, blob->data, blob->length)) { 4403f453ba04SDave Airlie ret = -EFAULT; 4404f453ba04SDave Airlie goto done; 4405f453ba04SDave Airlie } 4406f453ba04SDave Airlie } 4407f453ba04SDave Airlie out_resp->length = blob->length; 4408f453ba04SDave Airlie 4409f453ba04SDave Airlie done: 44108fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 441184849903SDaniel Vetter drm_modeset_unlock_all(dev); 4412f453ba04SDave Airlie return ret; 4413f453ba04SDave Airlie } 4414f453ba04SDave Airlie 4415cc7096fbSDave Airlie /** 4416e2f5d2eaSDaniel Stone * drm_mode_createblob_ioctl - create a new blob property 4417e2f5d2eaSDaniel Stone * @dev: DRM device 4418e2f5d2eaSDaniel Stone * @data: ioctl data 4419e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4420e2f5d2eaSDaniel Stone * 4421e2f5d2eaSDaniel Stone * This function creates a new blob property with user-defined values. In order 4422e2f5d2eaSDaniel Stone * to give us sensible validation and checking when creating, rather than at 4423e2f5d2eaSDaniel Stone * every potential use, we also require a type to be provided upfront. 4424e2f5d2eaSDaniel Stone * 4425e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4426e2f5d2eaSDaniel Stone * 4427e2f5d2eaSDaniel Stone * Returns: 4428e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4429e2f5d2eaSDaniel Stone */ 4430e2f5d2eaSDaniel Stone int drm_mode_createblob_ioctl(struct drm_device *dev, 4431e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4432e2f5d2eaSDaniel Stone { 4433e2f5d2eaSDaniel Stone struct drm_mode_create_blob *out_resp = data; 4434e2f5d2eaSDaniel Stone struct drm_property_blob *blob; 4435e2f5d2eaSDaniel Stone void __user *blob_ptr; 4436e2f5d2eaSDaniel Stone int ret = 0; 4437e2f5d2eaSDaniel Stone 4438e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4439e2f5d2eaSDaniel Stone return -EINVAL; 4440e2f5d2eaSDaniel Stone 4441e2f5d2eaSDaniel Stone blob = drm_property_create_blob(dev, out_resp->length, NULL); 4442e2f5d2eaSDaniel Stone if (IS_ERR(blob)) 4443e2f5d2eaSDaniel Stone return PTR_ERR(blob); 4444e2f5d2eaSDaniel Stone 4445e2f5d2eaSDaniel Stone blob_ptr = (void __user *)(unsigned long)out_resp->data; 4446e2f5d2eaSDaniel Stone if (copy_from_user(blob->data, blob_ptr, out_resp->length)) { 4447e2f5d2eaSDaniel Stone ret = -EFAULT; 4448e2f5d2eaSDaniel Stone goto out_blob; 4449e2f5d2eaSDaniel Stone } 4450e2f5d2eaSDaniel Stone 4451e2f5d2eaSDaniel Stone /* Dropping the lock between create_blob and our access here is safe 4452e2f5d2eaSDaniel Stone * as only the same file_priv can remove the blob; at this point, it is 4453e2f5d2eaSDaniel Stone * not associated with any file_priv. */ 4454e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4455e2f5d2eaSDaniel Stone out_resp->blob_id = blob->base.id; 4456e2f5d2eaSDaniel Stone list_add_tail(&file_priv->blobs, &blob->head_file); 4457e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4458e2f5d2eaSDaniel Stone 4459e2f5d2eaSDaniel Stone return 0; 4460e2f5d2eaSDaniel Stone 4461e2f5d2eaSDaniel Stone out_blob: 4462e2f5d2eaSDaniel Stone drm_property_unreference_blob(blob); 4463e2f5d2eaSDaniel Stone return ret; 4464e2f5d2eaSDaniel Stone } 4465e2f5d2eaSDaniel Stone 4466e2f5d2eaSDaniel Stone /** 4467e2f5d2eaSDaniel Stone * drm_mode_destroyblob_ioctl - destroy a user blob property 4468e2f5d2eaSDaniel Stone * @dev: DRM device 4469e2f5d2eaSDaniel Stone * @data: ioctl data 4470e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4471e2f5d2eaSDaniel Stone * 4472e2f5d2eaSDaniel Stone * Destroy an existing user-defined blob property. 4473e2f5d2eaSDaniel Stone * 4474e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4475e2f5d2eaSDaniel Stone * 4476e2f5d2eaSDaniel Stone * Returns: 4477e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4478e2f5d2eaSDaniel Stone */ 4479e2f5d2eaSDaniel Stone int drm_mode_destroyblob_ioctl(struct drm_device *dev, 4480e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4481e2f5d2eaSDaniel Stone { 4482e2f5d2eaSDaniel Stone struct drm_mode_destroy_blob *out_resp = data; 4483e2f5d2eaSDaniel Stone struct drm_property_blob *blob = NULL, *bt; 4484e2f5d2eaSDaniel Stone bool found = false; 4485e2f5d2eaSDaniel Stone int ret = 0; 4486e2f5d2eaSDaniel Stone 4487e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4488e2f5d2eaSDaniel Stone return -EINVAL; 4489e2f5d2eaSDaniel Stone 4490e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4491e2f5d2eaSDaniel Stone blob = __drm_property_lookup_blob(dev, out_resp->blob_id); 4492e2f5d2eaSDaniel Stone if (!blob) { 4493e2f5d2eaSDaniel Stone ret = -ENOENT; 4494e2f5d2eaSDaniel Stone goto err; 4495e2f5d2eaSDaniel Stone } 4496e2f5d2eaSDaniel Stone 4497e2f5d2eaSDaniel Stone /* Ensure the property was actually created by this user. */ 4498e2f5d2eaSDaniel Stone list_for_each_entry(bt, &file_priv->blobs, head_file) { 4499e2f5d2eaSDaniel Stone if (bt == blob) { 4500e2f5d2eaSDaniel Stone found = true; 4501e2f5d2eaSDaniel Stone break; 4502e2f5d2eaSDaniel Stone } 4503e2f5d2eaSDaniel Stone } 4504e2f5d2eaSDaniel Stone 4505e2f5d2eaSDaniel Stone if (!found) { 4506e2f5d2eaSDaniel Stone ret = -EPERM; 4507e2f5d2eaSDaniel Stone goto err; 4508e2f5d2eaSDaniel Stone } 4509e2f5d2eaSDaniel Stone 4510e2f5d2eaSDaniel Stone /* We must drop head_file here, because we may not be the last 4511e2f5d2eaSDaniel Stone * reference on the blob. */ 4512e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4513e2f5d2eaSDaniel Stone drm_property_unreference_blob_locked(blob); 4514e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4515e2f5d2eaSDaniel Stone 4516e2f5d2eaSDaniel Stone return 0; 4517e2f5d2eaSDaniel Stone 4518e2f5d2eaSDaniel Stone err: 4519e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4520e2f5d2eaSDaniel Stone return ret; 4521e2f5d2eaSDaniel Stone } 4522e2f5d2eaSDaniel Stone 4523e2f5d2eaSDaniel Stone /** 4524cc7096fbSDave Airlie * drm_mode_connector_set_path_property - set tile property on connector 4525cc7096fbSDave Airlie * @connector: connector to set property on. 4526d2ed3436SDaniel Stone * @path: path to use for property; must not be NULL. 4527cc7096fbSDave Airlie * 4528cc7096fbSDave Airlie * This creates a property to expose to userspace to specify a 4529cc7096fbSDave Airlie * connector path. This is mainly used for DisplayPort MST where 4530cc7096fbSDave Airlie * connectors have a topology and we want to allow userspace to give 4531cc7096fbSDave Airlie * them more meaningful names. 4532cc7096fbSDave Airlie * 4533cc7096fbSDave Airlie * Returns: 45341a498633SDaniel Vetter * Zero on success, negative errno on failure. 4535cc7096fbSDave Airlie */ 453643aba7ebSDave Airlie int drm_mode_connector_set_path_property(struct drm_connector *connector, 453712e6cecdSThierry Reding const char *path) 453843aba7ebSDave Airlie { 453943aba7ebSDave Airlie struct drm_device *dev = connector->dev; 4540ecbbe59bSThierry Reding int ret; 454143aba7ebSDave Airlie 4542d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4543d2ed3436SDaniel Stone &connector->path_blob_ptr, 4544d2ed3436SDaniel Stone strlen(path) + 1, 4545d2ed3436SDaniel Stone path, 4546d2ed3436SDaniel Stone &connector->base, 4547d2ed3436SDaniel Stone dev->mode_config.path_property); 454843aba7ebSDave Airlie return ret; 454943aba7ebSDave Airlie } 455043aba7ebSDave Airlie EXPORT_SYMBOL(drm_mode_connector_set_path_property); 455143aba7ebSDave Airlie 4552c8e32cc1SDaniel Vetter /** 45536f134d7bSDave Airlie * drm_mode_connector_set_tile_property - set tile property on connector 45546f134d7bSDave Airlie * @connector: connector to set property on. 45556f134d7bSDave Airlie * 45566f134d7bSDave Airlie * This looks up the tile information for a connector, and creates a 45576f134d7bSDave Airlie * property for userspace to parse if it exists. The property is of 45586f134d7bSDave Airlie * the form of 8 integers using ':' as a separator. 45596f134d7bSDave Airlie * 45606f134d7bSDave Airlie * Returns: 45616f134d7bSDave Airlie * Zero on success, errno on failure. 45626f134d7bSDave Airlie */ 45636f134d7bSDave Airlie int drm_mode_connector_set_tile_property(struct drm_connector *connector) 45646f134d7bSDave Airlie { 45656f134d7bSDave Airlie struct drm_device *dev = connector->dev; 45666f134d7bSDave Airlie char tile[256]; 4567d2ed3436SDaniel Stone int ret; 45686f134d7bSDave Airlie 45696f134d7bSDave Airlie if (!connector->has_tile) { 4570d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4571d2ed3436SDaniel Stone &connector->tile_blob_ptr, 4572d2ed3436SDaniel Stone 0, 4573d2ed3436SDaniel Stone NULL, 4574d2ed3436SDaniel Stone &connector->base, 4575d2ed3436SDaniel Stone dev->mode_config.tile_property); 45766f134d7bSDave Airlie return ret; 45776f134d7bSDave Airlie } 45786f134d7bSDave Airlie 45796f134d7bSDave Airlie snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", 45806f134d7bSDave Airlie connector->tile_group->id, connector->tile_is_single_monitor, 45816f134d7bSDave Airlie connector->num_h_tile, connector->num_v_tile, 45826f134d7bSDave Airlie connector->tile_h_loc, connector->tile_v_loc, 45836f134d7bSDave Airlie connector->tile_h_size, connector->tile_v_size); 45846f134d7bSDave Airlie 4585d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4586d2ed3436SDaniel Stone &connector->tile_blob_ptr, 4587d2ed3436SDaniel Stone strlen(tile) + 1, 4588d2ed3436SDaniel Stone tile, 4589d2ed3436SDaniel Stone &connector->base, 4590d2ed3436SDaniel Stone dev->mode_config.tile_property); 45916f134d7bSDave Airlie return ret; 45926f134d7bSDave Airlie } 45936f134d7bSDave Airlie EXPORT_SYMBOL(drm_mode_connector_set_tile_property); 45946f134d7bSDave Airlie 45956f134d7bSDave Airlie /** 4596c8e32cc1SDaniel Vetter * drm_mode_connector_update_edid_property - update the edid property of a connector 4597c8e32cc1SDaniel Vetter * @connector: drm connector 4598c8e32cc1SDaniel Vetter * @edid: new value of the edid property 4599c8e32cc1SDaniel Vetter * 4600c8e32cc1SDaniel Vetter * This function creates a new blob modeset object and assigns its id to the 4601c8e32cc1SDaniel Vetter * connector's edid property. 4602c8e32cc1SDaniel Vetter * 4603c8e32cc1SDaniel Vetter * Returns: 46041a498633SDaniel Vetter * Zero on success, negative errno on failure. 4605c8e32cc1SDaniel Vetter */ 4606f453ba04SDave Airlie int drm_mode_connector_update_edid_property(struct drm_connector *connector, 460712e6cecdSThierry Reding const struct edid *edid) 4608f453ba04SDave Airlie { 4609f453ba04SDave Airlie struct drm_device *dev = connector->dev; 4610d2ed3436SDaniel Stone size_t size = 0; 4611ecbbe59bSThierry Reding int ret; 4612f453ba04SDave Airlie 46134cf2b281SThomas Wood /* ignore requests to set edid when overridden */ 46144cf2b281SThomas Wood if (connector->override_edid) 46154cf2b281SThomas Wood return 0; 46164cf2b281SThomas Wood 4617d2ed3436SDaniel Stone if (edid) 4618e24ff467SShixin Zeng size = EDID_LENGTH * (1 + edid->extensions); 4619f453ba04SDave Airlie 4620d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4621d2ed3436SDaniel Stone &connector->edid_blob_ptr, 4622d2ed3436SDaniel Stone size, 4623d2ed3436SDaniel Stone edid, 4624d2ed3436SDaniel Stone &connector->base, 4625d2ed3436SDaniel Stone dev->mode_config.edid_property); 4626f453ba04SDave Airlie return ret; 4627f453ba04SDave Airlie } 4628f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_connector_update_edid_property); 4629f453ba04SDave Airlie 46303843e71fSRob Clark /* Some properties could refer to dynamic refcnt'd objects, or things that 46313843e71fSRob Clark * need special locking to handle lifetime issues (ie. to ensure the prop 46323843e71fSRob Clark * value doesn't become invalid part way through the property update due to 46333843e71fSRob Clark * race). The value returned by reference via 'obj' should be passed back 46343843e71fSRob Clark * to drm_property_change_valid_put() after the property is set (and the 46353843e71fSRob Clark * object to which the property is attached has a chance to take it's own 46363843e71fSRob Clark * reference). 46373843e71fSRob Clark */ 4638d34f20d6SRob Clark bool drm_property_change_valid_get(struct drm_property *property, 46393843e71fSRob Clark uint64_t value, struct drm_mode_object **ref) 464026a34815SPaulo Zanoni { 46412ca651d1SThierry Reding int i; 46422ca651d1SThierry Reding 464326a34815SPaulo Zanoni if (property->flags & DRM_MODE_PROP_IMMUTABLE) 464426a34815SPaulo Zanoni return false; 46455ea22f24SRob Clark 46463843e71fSRob Clark *ref = NULL; 46473843e71fSRob Clark 46485ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { 464926a34815SPaulo Zanoni if (value < property->values[0] || value > property->values[1]) 465026a34815SPaulo Zanoni return false; 465126a34815SPaulo Zanoni return true; 4652ebc44cf3SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { 4653ebc44cf3SRob Clark int64_t svalue = U642I64(value); 46544dfd909fSThierry Reding 4655ebc44cf3SRob Clark if (svalue < U642I64(property->values[0]) || 4656ebc44cf3SRob Clark svalue > U642I64(property->values[1])) 4657ebc44cf3SRob Clark return false; 4658ebc44cf3SRob Clark return true; 46595ea22f24SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 4660592c20eeSVille Syrjälä uint64_t valid_mask = 0; 46614dfd909fSThierry Reding 466249e27545SRob Clark for (i = 0; i < property->num_values; i++) 466349e27545SRob Clark valid_mask |= (1ULL << property->values[i]); 466449e27545SRob Clark return !(value & ~valid_mask); 46655ea22f24SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { 46666bcacf51SDaniel Stone struct drm_property_blob *blob; 46676bcacf51SDaniel Stone 46686bcacf51SDaniel Stone if (value == 0) 4669c4a56750SVille Syrjälä return true; 46706bcacf51SDaniel Stone 46716bcacf51SDaniel Stone blob = drm_property_lookup_blob(property->dev, value); 46726bcacf51SDaniel Stone if (blob) { 46736bcacf51SDaniel Stone *ref = &blob->base; 46746bcacf51SDaniel Stone return true; 46756bcacf51SDaniel Stone } else { 46766bcacf51SDaniel Stone return false; 46776bcacf51SDaniel Stone } 467898f75de4SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { 467998f75de4SRob Clark /* a zero value for an object property translates to null: */ 468098f75de4SRob Clark if (value == 0) 468198f75de4SRob Clark return true; 46823843e71fSRob Clark 46833843e71fSRob Clark /* handle refcnt'd objects specially: */ 46843843e71fSRob Clark if (property->values[0] == DRM_MODE_OBJECT_FB) { 46853843e71fSRob Clark struct drm_framebuffer *fb; 46863843e71fSRob Clark fb = drm_framebuffer_lookup(property->dev, value); 46873843e71fSRob Clark if (fb) { 46883843e71fSRob Clark *ref = &fb->base; 46893843e71fSRob Clark return true; 46903843e71fSRob Clark } else { 46913843e71fSRob Clark return false; 46923843e71fSRob Clark } 46933843e71fSRob Clark } else { 46943843e71fSRob Clark return _object_find(property->dev, value, property->values[0]) != NULL; 46953843e71fSRob Clark } 46962ca651d1SThierry Reding } 46972ca651d1SThierry Reding 469826a34815SPaulo Zanoni for (i = 0; i < property->num_values; i++) 469926a34815SPaulo Zanoni if (property->values[i] == value) 470026a34815SPaulo Zanoni return true; 470126a34815SPaulo Zanoni return false; 470226a34815SPaulo Zanoni } 470326a34815SPaulo Zanoni 4704d34f20d6SRob Clark void drm_property_change_valid_put(struct drm_property *property, 47053843e71fSRob Clark struct drm_mode_object *ref) 47063843e71fSRob Clark { 47073843e71fSRob Clark if (!ref) 47083843e71fSRob Clark return; 47093843e71fSRob Clark 47103843e71fSRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { 47113843e71fSRob Clark if (property->values[0] == DRM_MODE_OBJECT_FB) 47123843e71fSRob Clark drm_framebuffer_unreference(obj_to_fb(ref)); 4713da9b2a38SDaniel Stone } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 4714da9b2a38SDaniel Stone drm_property_unreference_blob(obj_to_blob(ref)); 47153843e71fSRob Clark } 47163843e71fSRob Clark 4717c8e32cc1SDaniel Vetter /** 4718c8e32cc1SDaniel Vetter * drm_mode_connector_property_set_ioctl - set the current value of a connector property 4719c8e32cc1SDaniel Vetter * @dev: DRM device 4720c8e32cc1SDaniel Vetter * @data: ioctl data 4721c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4722c8e32cc1SDaniel Vetter * 4723c8e32cc1SDaniel Vetter * This function sets the current value for a connectors's property. It also 4724c8e32cc1SDaniel Vetter * calls into a driver's ->set_property callback to update the hardware state 4725c8e32cc1SDaniel Vetter * 4726c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4727c8e32cc1SDaniel Vetter * 4728c8e32cc1SDaniel Vetter * Returns: 47291a498633SDaniel Vetter * Zero on success, negative errno on failure. 4730c8e32cc1SDaniel Vetter */ 4731f453ba04SDave Airlie int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 4732f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4733f453ba04SDave Airlie { 47340057d8ddSPaulo Zanoni struct drm_mode_connector_set_property *conn_set_prop = data; 47350057d8ddSPaulo Zanoni struct drm_mode_obj_set_property obj_set_prop = { 47360057d8ddSPaulo Zanoni .value = conn_set_prop->value, 47370057d8ddSPaulo Zanoni .prop_id = conn_set_prop->prop_id, 47380057d8ddSPaulo Zanoni .obj_id = conn_set_prop->connector_id, 47390057d8ddSPaulo Zanoni .obj_type = DRM_MODE_OBJECT_CONNECTOR 47400057d8ddSPaulo Zanoni }; 4741f453ba04SDave Airlie 47420057d8ddSPaulo Zanoni /* It does all the locking and checking we need */ 47430057d8ddSPaulo Zanoni return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); 4744f453ba04SDave Airlie } 4745f453ba04SDave Airlie 4746c543188aSPaulo Zanoni static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, 4747c543188aSPaulo Zanoni struct drm_property *property, 4748c543188aSPaulo Zanoni uint64_t value) 4749c543188aSPaulo Zanoni { 4750c543188aSPaulo Zanoni int ret = -EINVAL; 4751c543188aSPaulo Zanoni struct drm_connector *connector = obj_to_connector(obj); 4752c543188aSPaulo Zanoni 4753c543188aSPaulo Zanoni /* Do DPMS ourselves */ 4754c543188aSPaulo Zanoni if (property == connector->dev->mode_config.dpms_property) { 4755c543188aSPaulo Zanoni ret = 0; 47569a69a9acSMaarten Lankhorst if (connector->funcs->dpms) 47579a69a9acSMaarten Lankhorst ret = (*connector->funcs->dpms)(connector, (int)value); 4758c543188aSPaulo Zanoni } else if (connector->funcs->set_property) 4759c543188aSPaulo Zanoni ret = connector->funcs->set_property(connector, property, value); 4760c543188aSPaulo Zanoni 4761c543188aSPaulo Zanoni /* store the property value if successful */ 4762c543188aSPaulo Zanoni if (!ret) 476358495563SRob Clark drm_object_property_set_value(&connector->base, property, value); 4764c543188aSPaulo Zanoni return ret; 4765c543188aSPaulo Zanoni } 4766c543188aSPaulo Zanoni 4767bffd9de0SPaulo Zanoni static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, 4768bffd9de0SPaulo Zanoni struct drm_property *property, 4769bffd9de0SPaulo Zanoni uint64_t value) 4770bffd9de0SPaulo Zanoni { 4771bffd9de0SPaulo Zanoni int ret = -EINVAL; 4772bffd9de0SPaulo Zanoni struct drm_crtc *crtc = obj_to_crtc(obj); 4773bffd9de0SPaulo Zanoni 4774bffd9de0SPaulo Zanoni if (crtc->funcs->set_property) 4775bffd9de0SPaulo Zanoni ret = crtc->funcs->set_property(crtc, property, value); 4776bffd9de0SPaulo Zanoni if (!ret) 4777bffd9de0SPaulo Zanoni drm_object_property_set_value(obj, property, value); 4778bffd9de0SPaulo Zanoni 4779bffd9de0SPaulo Zanoni return ret; 4780bffd9de0SPaulo Zanoni } 4781bffd9de0SPaulo Zanoni 47823a5f87c2SThomas Wood /** 47833a5f87c2SThomas Wood * drm_mode_plane_set_obj_prop - set the value of a property 47843a5f87c2SThomas Wood * @plane: drm plane object to set property value for 47853a5f87c2SThomas Wood * @property: property to set 47863a5f87c2SThomas Wood * @value: value the property should be set to 47873a5f87c2SThomas Wood * 47883a5f87c2SThomas Wood * This functions sets a given property on a given plane object. This function 47893a5f87c2SThomas Wood * calls the driver's ->set_property callback and changes the software state of 47903a5f87c2SThomas Wood * the property if the callback succeeds. 47913a5f87c2SThomas Wood * 47923a5f87c2SThomas Wood * Returns: 47933a5f87c2SThomas Wood * Zero on success, error code on failure. 47943a5f87c2SThomas Wood */ 47953a5f87c2SThomas Wood int drm_mode_plane_set_obj_prop(struct drm_plane *plane, 47964d93914aSRob Clark struct drm_property *property, 47974d93914aSRob Clark uint64_t value) 47984d93914aSRob Clark { 47994d93914aSRob Clark int ret = -EINVAL; 48003a5f87c2SThomas Wood struct drm_mode_object *obj = &plane->base; 48014d93914aSRob Clark 48024d93914aSRob Clark if (plane->funcs->set_property) 48034d93914aSRob Clark ret = plane->funcs->set_property(plane, property, value); 48044d93914aSRob Clark if (!ret) 48054d93914aSRob Clark drm_object_property_set_value(obj, property, value); 48064d93914aSRob Clark 48074d93914aSRob Clark return ret; 48084d93914aSRob Clark } 48093a5f87c2SThomas Wood EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); 48104d93914aSRob Clark 4811c8e32cc1SDaniel Vetter /** 48121a498633SDaniel Vetter * drm_mode_obj_get_properties_ioctl - get the current value of a object's property 4813c8e32cc1SDaniel Vetter * @dev: DRM device 4814c8e32cc1SDaniel Vetter * @data: ioctl data 4815c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4816c8e32cc1SDaniel Vetter * 4817c8e32cc1SDaniel Vetter * This function retrieves the current value for an object's property. Compared 4818c8e32cc1SDaniel Vetter * to the connector specific ioctl this one is extended to also work on crtc and 4819c8e32cc1SDaniel Vetter * plane objects. 4820c8e32cc1SDaniel Vetter * 4821c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4822c8e32cc1SDaniel Vetter * 4823c8e32cc1SDaniel Vetter * Returns: 48241a498633SDaniel Vetter * Zero on success, negative errno on failure. 4825c8e32cc1SDaniel Vetter */ 4826c543188aSPaulo Zanoni int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 4827c543188aSPaulo Zanoni struct drm_file *file_priv) 4828c543188aSPaulo Zanoni { 4829c543188aSPaulo Zanoni struct drm_mode_obj_get_properties *arg = data; 4830c543188aSPaulo Zanoni struct drm_mode_object *obj; 4831c543188aSPaulo Zanoni int ret = 0; 4832c543188aSPaulo Zanoni 4833c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4834c543188aSPaulo Zanoni return -EINVAL; 4835c543188aSPaulo Zanoni 483684849903SDaniel Vetter drm_modeset_lock_all(dev); 4837c543188aSPaulo Zanoni 4838c543188aSPaulo Zanoni obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 4839c543188aSPaulo Zanoni if (!obj) { 4840f27657f2SVille Syrjälä ret = -ENOENT; 4841c543188aSPaulo Zanoni goto out; 4842c543188aSPaulo Zanoni } 4843c543188aSPaulo Zanoni if (!obj->properties) { 4844c543188aSPaulo Zanoni ret = -EINVAL; 4845c543188aSPaulo Zanoni goto out; 4846c543188aSPaulo Zanoni } 4847c543188aSPaulo Zanoni 484888a48e29SRob Clark ret = get_properties(obj, file_priv->atomic, 484995cbf110SRob Clark (uint32_t __user *)(unsigned long)(arg->props_ptr), 485095cbf110SRob Clark (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), 485195cbf110SRob Clark &arg->count_props); 4852c543188aSPaulo Zanoni 4853c543188aSPaulo Zanoni out: 485484849903SDaniel Vetter drm_modeset_unlock_all(dev); 4855c543188aSPaulo Zanoni return ret; 4856c543188aSPaulo Zanoni } 4857c543188aSPaulo Zanoni 4858c8e32cc1SDaniel Vetter /** 4859c8e32cc1SDaniel Vetter * drm_mode_obj_set_property_ioctl - set the current value of an object's property 4860c8e32cc1SDaniel Vetter * @dev: DRM device 4861c8e32cc1SDaniel Vetter * @data: ioctl data 4862c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4863c8e32cc1SDaniel Vetter * 4864c8e32cc1SDaniel Vetter * This function sets the current value for an object's property. It also calls 4865c8e32cc1SDaniel Vetter * into a driver's ->set_property callback to update the hardware state. 4866c8e32cc1SDaniel Vetter * Compared to the connector specific ioctl this one is extended to also work on 4867c8e32cc1SDaniel Vetter * crtc and plane objects. 4868c8e32cc1SDaniel Vetter * 4869c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4870c8e32cc1SDaniel Vetter * 4871c8e32cc1SDaniel Vetter * Returns: 48721a498633SDaniel Vetter * Zero on success, negative errno on failure. 4873c8e32cc1SDaniel Vetter */ 4874c543188aSPaulo Zanoni int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 4875c543188aSPaulo Zanoni struct drm_file *file_priv) 4876c543188aSPaulo Zanoni { 4877c543188aSPaulo Zanoni struct drm_mode_obj_set_property *arg = data; 4878c543188aSPaulo Zanoni struct drm_mode_object *arg_obj; 4879c543188aSPaulo Zanoni struct drm_mode_object *prop_obj; 4880c543188aSPaulo Zanoni struct drm_property *property; 48813843e71fSRob Clark int i, ret = -EINVAL; 48823843e71fSRob Clark struct drm_mode_object *ref; 4883c543188aSPaulo Zanoni 4884c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4885c543188aSPaulo Zanoni return -EINVAL; 4886c543188aSPaulo Zanoni 488784849903SDaniel Vetter drm_modeset_lock_all(dev); 4888c543188aSPaulo Zanoni 4889c543188aSPaulo Zanoni arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 4890f27657f2SVille Syrjälä if (!arg_obj) { 4891f27657f2SVille Syrjälä ret = -ENOENT; 4892c543188aSPaulo Zanoni goto out; 4893f27657f2SVille Syrjälä } 4894c543188aSPaulo Zanoni if (!arg_obj->properties) 4895c543188aSPaulo Zanoni goto out; 4896c543188aSPaulo Zanoni 48977f88a9beSPaulo Zanoni for (i = 0; i < arg_obj->properties->count; i++) 4898b17cd757SRob Clark if (arg_obj->properties->properties[i]->base.id == arg->prop_id) 4899c543188aSPaulo Zanoni break; 4900c543188aSPaulo Zanoni 49017f88a9beSPaulo Zanoni if (i == arg_obj->properties->count) 4902c543188aSPaulo Zanoni goto out; 4903c543188aSPaulo Zanoni 4904c543188aSPaulo Zanoni prop_obj = drm_mode_object_find(dev, arg->prop_id, 4905c543188aSPaulo Zanoni DRM_MODE_OBJECT_PROPERTY); 4906f27657f2SVille Syrjälä if (!prop_obj) { 4907f27657f2SVille Syrjälä ret = -ENOENT; 4908c543188aSPaulo Zanoni goto out; 4909f27657f2SVille Syrjälä } 4910c543188aSPaulo Zanoni property = obj_to_property(prop_obj); 4911c543188aSPaulo Zanoni 49123843e71fSRob Clark if (!drm_property_change_valid_get(property, arg->value, &ref)) 4913c543188aSPaulo Zanoni goto out; 4914c543188aSPaulo Zanoni 4915c543188aSPaulo Zanoni switch (arg_obj->type) { 4916c543188aSPaulo Zanoni case DRM_MODE_OBJECT_CONNECTOR: 4917c543188aSPaulo Zanoni ret = drm_mode_connector_set_obj_prop(arg_obj, property, 4918c543188aSPaulo Zanoni arg->value); 4919c543188aSPaulo Zanoni break; 4920bffd9de0SPaulo Zanoni case DRM_MODE_OBJECT_CRTC: 4921bffd9de0SPaulo Zanoni ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); 4922bffd9de0SPaulo Zanoni break; 49234d93914aSRob Clark case DRM_MODE_OBJECT_PLANE: 49243a5f87c2SThomas Wood ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), 49253a5f87c2SThomas Wood property, arg->value); 49264d93914aSRob Clark break; 4927c543188aSPaulo Zanoni } 4928c543188aSPaulo Zanoni 49293843e71fSRob Clark drm_property_change_valid_put(property, ref); 49303843e71fSRob Clark 4931c543188aSPaulo Zanoni out: 493284849903SDaniel Vetter drm_modeset_unlock_all(dev); 4933c543188aSPaulo Zanoni return ret; 4934c543188aSPaulo Zanoni } 4935c543188aSPaulo Zanoni 4936c8e32cc1SDaniel Vetter /** 4937c8e32cc1SDaniel Vetter * drm_mode_connector_attach_encoder - attach a connector to an encoder 4938c8e32cc1SDaniel Vetter * @connector: connector to attach 4939c8e32cc1SDaniel Vetter * @encoder: encoder to attach @connector to 4940c8e32cc1SDaniel Vetter * 4941c8e32cc1SDaniel Vetter * This function links up a connector to an encoder. Note that the routing 4942c8e32cc1SDaniel Vetter * restrictions between encoders and crtcs are exposed to userspace through the 4943c8e32cc1SDaniel Vetter * possible_clones and possible_crtcs bitmasks. 4944c8e32cc1SDaniel Vetter * 4945c8e32cc1SDaniel Vetter * Returns: 49461a498633SDaniel Vetter * Zero on success, negative errno on failure. 4947c8e32cc1SDaniel Vetter */ 4948f453ba04SDave Airlie int drm_mode_connector_attach_encoder(struct drm_connector *connector, 4949f453ba04SDave Airlie struct drm_encoder *encoder) 4950f453ba04SDave Airlie { 4951f453ba04SDave Airlie int i; 4952f453ba04SDave Airlie 4953f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 4954f453ba04SDave Airlie if (connector->encoder_ids[i] == 0) { 4955f453ba04SDave Airlie connector->encoder_ids[i] = encoder->base.id; 4956f453ba04SDave Airlie return 0; 4957f453ba04SDave Airlie } 4958f453ba04SDave Airlie } 4959f453ba04SDave Airlie return -ENOMEM; 4960f453ba04SDave Airlie } 4961f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_connector_attach_encoder); 4962f453ba04SDave Airlie 4963c8e32cc1SDaniel Vetter /** 4964c8e32cc1SDaniel Vetter * drm_mode_crtc_set_gamma_size - set the gamma table size 4965c8e32cc1SDaniel Vetter * @crtc: CRTC to set the gamma table size for 4966c8e32cc1SDaniel Vetter * @gamma_size: size of the gamma table 4967c8e32cc1SDaniel Vetter * 4968c8e32cc1SDaniel Vetter * Drivers which support gamma tables should set this to the supported gamma 4969c8e32cc1SDaniel Vetter * table size when initializing the CRTC. Currently the drm core only supports a 4970c8e32cc1SDaniel Vetter * fixed gamma table size. 4971c8e32cc1SDaniel Vetter * 4972c8e32cc1SDaniel Vetter * Returns: 49731a498633SDaniel Vetter * Zero on success, negative errno on failure. 4974c8e32cc1SDaniel Vetter */ 49754cae5b84SSascha Hauer int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 4976f453ba04SDave Airlie int gamma_size) 4977f453ba04SDave Airlie { 4978f453ba04SDave Airlie crtc->gamma_size = gamma_size; 4979f453ba04SDave Airlie 4980bd3f0ff9SThierry Reding crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, 4981bd3f0ff9SThierry Reding GFP_KERNEL); 4982f453ba04SDave Airlie if (!crtc->gamma_store) { 4983f453ba04SDave Airlie crtc->gamma_size = 0; 49844cae5b84SSascha Hauer return -ENOMEM; 4985f453ba04SDave Airlie } 4986f453ba04SDave Airlie 49874cae5b84SSascha Hauer return 0; 4988f453ba04SDave Airlie } 4989f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); 4990f453ba04SDave Airlie 4991c8e32cc1SDaniel Vetter /** 4992c8e32cc1SDaniel Vetter * drm_mode_gamma_set_ioctl - set the gamma table 4993c8e32cc1SDaniel Vetter * @dev: DRM device 4994c8e32cc1SDaniel Vetter * @data: ioctl data 4995c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4996c8e32cc1SDaniel Vetter * 4997c8e32cc1SDaniel Vetter * Set the gamma table of a CRTC to the one passed in by the user. Userspace can 4998c8e32cc1SDaniel Vetter * inquire the required gamma table size through drm_mode_gamma_get_ioctl. 4999c8e32cc1SDaniel Vetter * 5000c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5001c8e32cc1SDaniel Vetter * 5002c8e32cc1SDaniel Vetter * Returns: 50031a498633SDaniel Vetter * Zero on success, negative errno on failure. 5004c8e32cc1SDaniel Vetter */ 5005f453ba04SDave Airlie int drm_mode_gamma_set_ioctl(struct drm_device *dev, 5006f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5007f453ba04SDave Airlie { 5008f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5009f453ba04SDave Airlie struct drm_crtc *crtc; 5010f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5011f453ba04SDave Airlie int size; 5012f453ba04SDave Airlie int ret = 0; 5013f453ba04SDave Airlie 5014fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5015fb3b06c8SDave Airlie return -EINVAL; 5016fb3b06c8SDave Airlie 501784849903SDaniel Vetter drm_modeset_lock_all(dev); 5018a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5019a2b34e22SRob Clark if (!crtc) { 5020f27657f2SVille Syrjälä ret = -ENOENT; 5021f453ba04SDave Airlie goto out; 5022f453ba04SDave Airlie } 5023f453ba04SDave Airlie 5024ebe0f244SLaurent Pinchart if (crtc->funcs->gamma_set == NULL) { 5025ebe0f244SLaurent Pinchart ret = -ENOSYS; 5026ebe0f244SLaurent Pinchart goto out; 5027ebe0f244SLaurent Pinchart } 5028ebe0f244SLaurent Pinchart 5029f453ba04SDave Airlie /* memcpy into gamma store */ 5030f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5031f453ba04SDave Airlie ret = -EINVAL; 5032f453ba04SDave Airlie goto out; 5033f453ba04SDave Airlie } 5034f453ba04SDave Airlie 5035f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5036f453ba04SDave Airlie r_base = crtc->gamma_store; 5037f453ba04SDave Airlie if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { 5038f453ba04SDave Airlie ret = -EFAULT; 5039f453ba04SDave Airlie goto out; 5040f453ba04SDave Airlie } 5041f453ba04SDave Airlie 5042f453ba04SDave Airlie g_base = r_base + size; 5043f453ba04SDave Airlie if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { 5044f453ba04SDave Airlie ret = -EFAULT; 5045f453ba04SDave Airlie goto out; 5046f453ba04SDave Airlie } 5047f453ba04SDave Airlie 5048f453ba04SDave Airlie b_base = g_base + size; 5049f453ba04SDave Airlie if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { 5050f453ba04SDave Airlie ret = -EFAULT; 5051f453ba04SDave Airlie goto out; 5052f453ba04SDave Airlie } 5053f453ba04SDave Airlie 50547203425aSJames Simmons crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 5055f453ba04SDave Airlie 5056f453ba04SDave Airlie out: 505784849903SDaniel Vetter drm_modeset_unlock_all(dev); 5058f453ba04SDave Airlie return ret; 5059f453ba04SDave Airlie 5060f453ba04SDave Airlie } 5061f453ba04SDave Airlie 5062c8e32cc1SDaniel Vetter /** 5063c8e32cc1SDaniel Vetter * drm_mode_gamma_get_ioctl - get the gamma table 5064c8e32cc1SDaniel Vetter * @dev: DRM device 5065c8e32cc1SDaniel Vetter * @data: ioctl data 5066c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5067c8e32cc1SDaniel Vetter * 5068c8e32cc1SDaniel Vetter * Copy the current gamma table into the storage provided. This also provides 5069c8e32cc1SDaniel Vetter * the gamma table size the driver expects, which can be used to size the 5070c8e32cc1SDaniel Vetter * allocated storage. 5071c8e32cc1SDaniel Vetter * 5072c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5073c8e32cc1SDaniel Vetter * 5074c8e32cc1SDaniel Vetter * Returns: 50751a498633SDaniel Vetter * Zero on success, negative errno on failure. 5076c8e32cc1SDaniel Vetter */ 5077f453ba04SDave Airlie int drm_mode_gamma_get_ioctl(struct drm_device *dev, 5078f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5079f453ba04SDave Airlie { 5080f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5081f453ba04SDave Airlie struct drm_crtc *crtc; 5082f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5083f453ba04SDave Airlie int size; 5084f453ba04SDave Airlie int ret = 0; 5085f453ba04SDave Airlie 5086fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5087fb3b06c8SDave Airlie return -EINVAL; 5088fb3b06c8SDave Airlie 508984849903SDaniel Vetter drm_modeset_lock_all(dev); 5090a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5091a2b34e22SRob Clark if (!crtc) { 5092f27657f2SVille Syrjälä ret = -ENOENT; 5093f453ba04SDave Airlie goto out; 5094f453ba04SDave Airlie } 5095f453ba04SDave Airlie 5096f453ba04SDave Airlie /* memcpy into gamma store */ 5097f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5098f453ba04SDave Airlie ret = -EINVAL; 5099f453ba04SDave Airlie goto out; 5100f453ba04SDave Airlie } 5101f453ba04SDave Airlie 5102f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5103f453ba04SDave Airlie r_base = crtc->gamma_store; 5104f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { 5105f453ba04SDave Airlie ret = -EFAULT; 5106f453ba04SDave Airlie goto out; 5107f453ba04SDave Airlie } 5108f453ba04SDave Airlie 5109f453ba04SDave Airlie g_base = r_base + size; 5110f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { 5111f453ba04SDave Airlie ret = -EFAULT; 5112f453ba04SDave Airlie goto out; 5113f453ba04SDave Airlie } 5114f453ba04SDave Airlie 5115f453ba04SDave Airlie b_base = g_base + size; 5116f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { 5117f453ba04SDave Airlie ret = -EFAULT; 5118f453ba04SDave Airlie goto out; 5119f453ba04SDave Airlie } 5120f453ba04SDave Airlie out: 512184849903SDaniel Vetter drm_modeset_unlock_all(dev); 5122f453ba04SDave Airlie return ret; 5123f453ba04SDave Airlie } 5124d91d8a3fSKristian Høgsberg 5125c8e32cc1SDaniel Vetter /** 5126c8e32cc1SDaniel Vetter * drm_mode_page_flip_ioctl - schedule an asynchronous fb update 5127c8e32cc1SDaniel Vetter * @dev: DRM device 5128c8e32cc1SDaniel Vetter * @data: ioctl data 5129c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5130c8e32cc1SDaniel Vetter * 5131c8e32cc1SDaniel Vetter * This schedules an asynchronous update on a given CRTC, called page flip. 5132c8e32cc1SDaniel Vetter * Optionally a drm event is generated to signal the completion of the event. 5133c8e32cc1SDaniel Vetter * Generic drivers cannot assume that a pageflip with changed framebuffer 5134c8e32cc1SDaniel Vetter * properties (including driver specific metadata like tiling layout) will work, 5135c8e32cc1SDaniel Vetter * but some drivers support e.g. pixel format changes through the pageflip 5136c8e32cc1SDaniel Vetter * ioctl. 5137c8e32cc1SDaniel Vetter * 5138c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5139c8e32cc1SDaniel Vetter * 5140c8e32cc1SDaniel Vetter * Returns: 51411a498633SDaniel Vetter * Zero on success, negative errno on failure. 5142c8e32cc1SDaniel Vetter */ 5143d91d8a3fSKristian Høgsberg int drm_mode_page_flip_ioctl(struct drm_device *dev, 5144d91d8a3fSKristian Høgsberg void *data, struct drm_file *file_priv) 5145d91d8a3fSKristian Høgsberg { 5146d91d8a3fSKristian Høgsberg struct drm_mode_crtc_page_flip *page_flip = data; 5147d91d8a3fSKristian Høgsberg struct drm_crtc *crtc; 51483d30a59bSDaniel Vetter struct drm_framebuffer *fb = NULL; 5149d91d8a3fSKristian Høgsberg struct drm_pending_vblank_event *e = NULL; 5150d91d8a3fSKristian Høgsberg unsigned long flags; 5151d91d8a3fSKristian Høgsberg int ret = -EINVAL; 5152d91d8a3fSKristian Høgsberg 5153d91d8a3fSKristian Høgsberg if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || 5154d91d8a3fSKristian Høgsberg page_flip->reserved != 0) 5155d91d8a3fSKristian Høgsberg return -EINVAL; 5156d91d8a3fSKristian Høgsberg 515762f2104fSKeith Packard if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) 515862f2104fSKeith Packard return -EINVAL; 515962f2104fSKeith Packard 5160a2b34e22SRob Clark crtc = drm_crtc_find(dev, page_flip->crtc_id); 5161a2b34e22SRob Clark if (!crtc) 5162f27657f2SVille Syrjälä return -ENOENT; 5163d91d8a3fSKristian Høgsberg 51644d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 5165f4510a27SMatt Roper if (crtc->primary->fb == NULL) { 516690c1efddSChris Wilson /* The framebuffer is currently unbound, presumably 516790c1efddSChris Wilson * due to a hotplug event, that userspace has not 516890c1efddSChris Wilson * yet discovered. 516990c1efddSChris Wilson */ 517090c1efddSChris Wilson ret = -EBUSY; 517190c1efddSChris Wilson goto out; 517290c1efddSChris Wilson } 517390c1efddSChris Wilson 5174d91d8a3fSKristian Høgsberg if (crtc->funcs->page_flip == NULL) 5175d91d8a3fSKristian Høgsberg goto out; 5176d91d8a3fSKristian Høgsberg 5177786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, page_flip->fb_id); 517837c4e705SVille Syrjälä if (!fb) { 517937c4e705SVille Syrjälä ret = -ENOENT; 5180d91d8a3fSKristian Høgsberg goto out; 518137c4e705SVille Syrjälä } 5182d91d8a3fSKristian Høgsberg 5183c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); 5184c11e9283SDamien Lespiau if (ret) 51855f61bb42SVille Syrjälä goto out; 51865f61bb42SVille Syrjälä 5187f4510a27SMatt Roper if (crtc->primary->fb->pixel_format != fb->pixel_format) { 5188909d9cdaSLaurent Pinchart DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); 5189909d9cdaSLaurent Pinchart ret = -EINVAL; 5190909d9cdaSLaurent Pinchart goto out; 5191909d9cdaSLaurent Pinchart } 5192909d9cdaSLaurent Pinchart 5193d91d8a3fSKristian Høgsberg if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 5194d91d8a3fSKristian Høgsberg ret = -ENOMEM; 5195d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5196f76511b9SThierry Reding if (file_priv->event_space < sizeof(e->event)) { 5197d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5198d91d8a3fSKristian Høgsberg goto out; 5199d91d8a3fSKristian Høgsberg } 5200f76511b9SThierry Reding file_priv->event_space -= sizeof(e->event); 5201d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5202d91d8a3fSKristian Høgsberg 5203f76511b9SThierry Reding e = kzalloc(sizeof(*e), GFP_KERNEL); 5204d91d8a3fSKristian Høgsberg if (e == NULL) { 5205d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5206f76511b9SThierry Reding file_priv->event_space += sizeof(e->event); 5207d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5208d91d8a3fSKristian Høgsberg goto out; 5209d91d8a3fSKristian Høgsberg } 5210d91d8a3fSKristian Høgsberg 52117bd4d7beSJesse Barnes e->event.base.type = DRM_EVENT_FLIP_COMPLETE; 5212f76511b9SThierry Reding e->event.base.length = sizeof(e->event); 5213d91d8a3fSKristian Høgsberg e->event.user_data = page_flip->user_data; 5214d91d8a3fSKristian Høgsberg e->base.event = &e->event.base; 5215d91d8a3fSKristian Høgsberg e->base.file_priv = file_priv; 5216d91d8a3fSKristian Høgsberg e->base.destroy = 5217d91d8a3fSKristian Høgsberg (void (*) (struct drm_pending_event *)) kfree; 5218d91d8a3fSKristian Høgsberg } 5219d91d8a3fSKristian Høgsberg 52203d30a59bSDaniel Vetter crtc->primary->old_fb = crtc->primary->fb; 5221ed8d1975SKeith Packard ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); 5222d91d8a3fSKristian Høgsberg if (ret) { 5223aef6a7eeSJoonyoung Shim if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 5224d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5225f76511b9SThierry Reding file_priv->event_space += sizeof(e->event); 5226d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5227d91d8a3fSKristian Høgsberg kfree(e); 5228d91d8a3fSKristian Høgsberg } 5229b0d12325SDaniel Vetter /* Keep the old fb, don't unref it. */ 52303d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5231b0d12325SDaniel Vetter } else { 52323cb43cc0SDaniel Vetter crtc->primary->fb = fb; 5233b0d12325SDaniel Vetter /* Unref only the old framebuffer. */ 5234b0d12325SDaniel Vetter fb = NULL; 5235aef6a7eeSJoonyoung Shim } 5236d91d8a3fSKristian Høgsberg 5237d91d8a3fSKristian Høgsberg out: 5238b0d12325SDaniel Vetter if (fb) 5239b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 52403d30a59bSDaniel Vetter if (crtc->primary->old_fb) 52413d30a59bSDaniel Vetter drm_framebuffer_unreference(crtc->primary->old_fb); 52423d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5243d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 5244b4d5e7d1SDaniel Vetter 5245d91d8a3fSKristian Høgsberg return ret; 5246d91d8a3fSKristian Høgsberg } 5247eb033556SChris Wilson 5248c8e32cc1SDaniel Vetter /** 5249c8e32cc1SDaniel Vetter * drm_mode_config_reset - call ->reset callbacks 5250c8e32cc1SDaniel Vetter * @dev: drm device 5251c8e32cc1SDaniel Vetter * 5252c8e32cc1SDaniel Vetter * This functions calls all the crtc's, encoder's and connector's ->reset 5253c8e32cc1SDaniel Vetter * callback. Drivers can use this in e.g. their driver load or resume code to 5254c8e32cc1SDaniel Vetter * reset hardware and software state. 5255c8e32cc1SDaniel Vetter */ 5256eb033556SChris Wilson void drm_mode_config_reset(struct drm_device *dev) 5257eb033556SChris Wilson { 5258eb033556SChris Wilson struct drm_crtc *crtc; 52592a0d7cfdSDaniel Vetter struct drm_plane *plane; 5260eb033556SChris Wilson struct drm_encoder *encoder; 5261eb033556SChris Wilson struct drm_connector *connector; 5262eb033556SChris Wilson 5263e4f62546SDaniel Vetter drm_for_each_plane(plane, dev) 52642a0d7cfdSDaniel Vetter if (plane->funcs->reset) 52652a0d7cfdSDaniel Vetter plane->funcs->reset(plane); 52662a0d7cfdSDaniel Vetter 5267e4f62546SDaniel Vetter drm_for_each_crtc(crtc, dev) 5268eb033556SChris Wilson if (crtc->funcs->reset) 5269eb033556SChris Wilson crtc->funcs->reset(crtc); 5270eb033556SChris Wilson 5271e4f62546SDaniel Vetter drm_for_each_encoder(encoder, dev) 5272eb033556SChris Wilson if (encoder->funcs->reset) 5273eb033556SChris Wilson encoder->funcs->reset(encoder); 5274eb033556SChris Wilson 5275f8c2ba31SDaniel Vetter mutex_lock(&dev->mode_config.mutex); 52764eebf60bSDave Airlie drm_for_each_connector(connector, dev) 5277eb033556SChris Wilson if (connector->funcs->reset) 5278eb033556SChris Wilson connector->funcs->reset(connector); 5279f8c2ba31SDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 52805e2cb2f6SDaniel Vetter } 5281eb033556SChris Wilson EXPORT_SYMBOL(drm_mode_config_reset); 5282ff72145bSDave Airlie 5283c8e32cc1SDaniel Vetter /** 5284c8e32cc1SDaniel Vetter * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer 5285c8e32cc1SDaniel Vetter * @dev: DRM device 5286c8e32cc1SDaniel Vetter * @data: ioctl data 5287c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5288c8e32cc1SDaniel Vetter * 5289c8e32cc1SDaniel Vetter * This creates a new dumb buffer in the driver's backing storage manager (GEM, 5290c8e32cc1SDaniel Vetter * TTM or something else entirely) and returns the resulting buffer handle. This 5291c8e32cc1SDaniel Vetter * handle can then be wrapped up into a framebuffer modeset object. 5292c8e32cc1SDaniel Vetter * 5293c8e32cc1SDaniel Vetter * Note that userspace is not allowed to use such objects for render 5294c8e32cc1SDaniel Vetter * acceleration - drivers must create their own private ioctls for such a use 5295c8e32cc1SDaniel Vetter * case. 5296c8e32cc1SDaniel Vetter * 5297c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5298c8e32cc1SDaniel Vetter * 5299c8e32cc1SDaniel Vetter * Returns: 53001a498633SDaniel Vetter * Zero on success, negative errno on failure. 5301c8e32cc1SDaniel Vetter */ 5302ff72145bSDave Airlie int drm_mode_create_dumb_ioctl(struct drm_device *dev, 5303ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5304ff72145bSDave Airlie { 5305ff72145bSDave Airlie struct drm_mode_create_dumb *args = data; 5306b28cd41fSDavid Herrmann u32 cpp, stride, size; 5307ff72145bSDave Airlie 5308ff72145bSDave Airlie if (!dev->driver->dumb_create) 5309ff72145bSDave Airlie return -ENOSYS; 5310b28cd41fSDavid Herrmann if (!args->width || !args->height || !args->bpp) 5311b28cd41fSDavid Herrmann return -EINVAL; 5312b28cd41fSDavid Herrmann 5313b28cd41fSDavid Herrmann /* overflow checks for 32bit size calculations */ 531400e72089SDavid Herrmann /* NOTE: DIV_ROUND_UP() can overflow */ 5315b28cd41fSDavid Herrmann cpp = DIV_ROUND_UP(args->bpp, 8); 531600e72089SDavid Herrmann if (!cpp || cpp > 0xffffffffU / args->width) 5317b28cd41fSDavid Herrmann return -EINVAL; 5318b28cd41fSDavid Herrmann stride = cpp * args->width; 5319b28cd41fSDavid Herrmann if (args->height > 0xffffffffU / stride) 5320b28cd41fSDavid Herrmann return -EINVAL; 5321b28cd41fSDavid Herrmann 5322b28cd41fSDavid Herrmann /* test for wrap-around */ 5323b28cd41fSDavid Herrmann size = args->height * stride; 5324b28cd41fSDavid Herrmann if (PAGE_ALIGN(size) == 0) 5325b28cd41fSDavid Herrmann return -EINVAL; 5326b28cd41fSDavid Herrmann 5327f6085952SThierry Reding /* 5328f6085952SThierry Reding * handle, pitch and size are output parameters. Zero them out to 5329f6085952SThierry Reding * prevent drivers from accidentally using uninitialized data. Since 5330f6085952SThierry Reding * not all existing userspace is clearing these fields properly we 5331f6085952SThierry Reding * cannot reject IOCTL with garbage in them. 5332f6085952SThierry Reding */ 5333f6085952SThierry Reding args->handle = 0; 5334f6085952SThierry Reding args->pitch = 0; 5335f6085952SThierry Reding args->size = 0; 5336f6085952SThierry Reding 5337ff72145bSDave Airlie return dev->driver->dumb_create(file_priv, dev, args); 5338ff72145bSDave Airlie } 5339ff72145bSDave Airlie 5340c8e32cc1SDaniel Vetter /** 5341c8e32cc1SDaniel Vetter * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer 5342c8e32cc1SDaniel Vetter * @dev: DRM device 5343c8e32cc1SDaniel Vetter * @data: ioctl data 5344c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5345c8e32cc1SDaniel Vetter * 5346c8e32cc1SDaniel Vetter * Allocate an offset in the drm device node's address space to be able to 5347c8e32cc1SDaniel Vetter * memory map a dumb buffer. 5348c8e32cc1SDaniel Vetter * 5349c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5350c8e32cc1SDaniel Vetter * 5351c8e32cc1SDaniel Vetter * Returns: 53521a498633SDaniel Vetter * Zero on success, negative errno on failure. 5353c8e32cc1SDaniel Vetter */ 5354ff72145bSDave Airlie int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 5355ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5356ff72145bSDave Airlie { 5357ff72145bSDave Airlie struct drm_mode_map_dumb *args = data; 5358ff72145bSDave Airlie 5359ff72145bSDave Airlie /* call driver ioctl to get mmap offset */ 5360ff72145bSDave Airlie if (!dev->driver->dumb_map_offset) 5361ff72145bSDave Airlie return -ENOSYS; 5362ff72145bSDave Airlie 5363ff72145bSDave Airlie return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); 5364ff72145bSDave Airlie } 5365ff72145bSDave Airlie 5366c8e32cc1SDaniel Vetter /** 5367c8e32cc1SDaniel Vetter * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer 5368c8e32cc1SDaniel Vetter * @dev: DRM device 5369c8e32cc1SDaniel Vetter * @data: ioctl data 5370c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5371c8e32cc1SDaniel Vetter * 5372c8e32cc1SDaniel Vetter * This destroys the userspace handle for the given dumb backing storage buffer. 5373c8e32cc1SDaniel Vetter * Since buffer objects must be reference counted in the kernel a buffer object 5374c8e32cc1SDaniel Vetter * won't be immediately freed if a framebuffer modeset object still uses it. 5375c8e32cc1SDaniel Vetter * 5376c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5377c8e32cc1SDaniel Vetter * 5378c8e32cc1SDaniel Vetter * Returns: 53791a498633SDaniel Vetter * Zero on success, negative errno on failure. 5380c8e32cc1SDaniel Vetter */ 5381ff72145bSDave Airlie int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 5382ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5383ff72145bSDave Airlie { 5384ff72145bSDave Airlie struct drm_mode_destroy_dumb *args = data; 5385ff72145bSDave Airlie 5386ff72145bSDave Airlie if (!dev->driver->dumb_destroy) 5387ff72145bSDave Airlie return -ENOSYS; 5388ff72145bSDave Airlie 5389ff72145bSDave Airlie return dev->driver->dumb_destroy(file_priv, dev, args->handle); 5390ff72145bSDave Airlie } 5391248dbc23SDave Airlie 5392c8e32cc1SDaniel Vetter /** 5393c8e32cc1SDaniel Vetter * drm_fb_get_bpp_depth - get the bpp/depth values for format 5394c8e32cc1SDaniel Vetter * @format: pixel format (DRM_FORMAT_*) 5395c8e32cc1SDaniel Vetter * @depth: storage for the depth value 5396c8e32cc1SDaniel Vetter * @bpp: storage for the bpp value 5397c8e32cc1SDaniel Vetter * 5398c8e32cc1SDaniel Vetter * This only supports RGB formats here for compat with code that doesn't use 5399c8e32cc1SDaniel Vetter * pixel formats directly yet. 5400248dbc23SDave Airlie */ 5401248dbc23SDave Airlie void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 5402248dbc23SDave Airlie int *bpp) 5403248dbc23SDave Airlie { 5404248dbc23SDave Airlie switch (format) { 5405c51a6bc5SVille Syrjälä case DRM_FORMAT_C8: 540604b3924dSVille Syrjälä case DRM_FORMAT_RGB332: 540704b3924dSVille Syrjälä case DRM_FORMAT_BGR233: 5408248dbc23SDave Airlie *depth = 8; 5409248dbc23SDave Airlie *bpp = 8; 5410248dbc23SDave Airlie break; 541104b3924dSVille Syrjälä case DRM_FORMAT_XRGB1555: 541204b3924dSVille Syrjälä case DRM_FORMAT_XBGR1555: 541304b3924dSVille Syrjälä case DRM_FORMAT_RGBX5551: 541404b3924dSVille Syrjälä case DRM_FORMAT_BGRX5551: 541504b3924dSVille Syrjälä case DRM_FORMAT_ARGB1555: 541604b3924dSVille Syrjälä case DRM_FORMAT_ABGR1555: 541704b3924dSVille Syrjälä case DRM_FORMAT_RGBA5551: 541804b3924dSVille Syrjälä case DRM_FORMAT_BGRA5551: 5419248dbc23SDave Airlie *depth = 15; 5420248dbc23SDave Airlie *bpp = 16; 5421248dbc23SDave Airlie break; 542204b3924dSVille Syrjälä case DRM_FORMAT_RGB565: 542304b3924dSVille Syrjälä case DRM_FORMAT_BGR565: 5424248dbc23SDave Airlie *depth = 16; 5425248dbc23SDave Airlie *bpp = 16; 5426248dbc23SDave Airlie break; 542704b3924dSVille Syrjälä case DRM_FORMAT_RGB888: 542804b3924dSVille Syrjälä case DRM_FORMAT_BGR888: 542904b3924dSVille Syrjälä *depth = 24; 543004b3924dSVille Syrjälä *bpp = 24; 543104b3924dSVille Syrjälä break; 543204b3924dSVille Syrjälä case DRM_FORMAT_XRGB8888: 543304b3924dSVille Syrjälä case DRM_FORMAT_XBGR8888: 543404b3924dSVille Syrjälä case DRM_FORMAT_RGBX8888: 543504b3924dSVille Syrjälä case DRM_FORMAT_BGRX8888: 5436248dbc23SDave Airlie *depth = 24; 5437248dbc23SDave Airlie *bpp = 32; 5438248dbc23SDave Airlie break; 543904b3924dSVille Syrjälä case DRM_FORMAT_XRGB2101010: 544004b3924dSVille Syrjälä case DRM_FORMAT_XBGR2101010: 544104b3924dSVille Syrjälä case DRM_FORMAT_RGBX1010102: 544204b3924dSVille Syrjälä case DRM_FORMAT_BGRX1010102: 544304b3924dSVille Syrjälä case DRM_FORMAT_ARGB2101010: 544404b3924dSVille Syrjälä case DRM_FORMAT_ABGR2101010: 544504b3924dSVille Syrjälä case DRM_FORMAT_RGBA1010102: 544604b3924dSVille Syrjälä case DRM_FORMAT_BGRA1010102: 5447248dbc23SDave Airlie *depth = 30; 5448248dbc23SDave Airlie *bpp = 32; 5449248dbc23SDave Airlie break; 545004b3924dSVille Syrjälä case DRM_FORMAT_ARGB8888: 545104b3924dSVille Syrjälä case DRM_FORMAT_ABGR8888: 545204b3924dSVille Syrjälä case DRM_FORMAT_RGBA8888: 545304b3924dSVille Syrjälä case DRM_FORMAT_BGRA8888: 5454248dbc23SDave Airlie *depth = 32; 5455248dbc23SDave Airlie *bpp = 32; 5456248dbc23SDave Airlie break; 5457248dbc23SDave Airlie default: 545823c453a4SVille Syrjälä DRM_DEBUG_KMS("unsupported pixel format %s\n", 545923c453a4SVille Syrjälä drm_get_format_name(format)); 5460248dbc23SDave Airlie *depth = 0; 5461248dbc23SDave Airlie *bpp = 0; 5462248dbc23SDave Airlie break; 5463248dbc23SDave Airlie } 5464248dbc23SDave Airlie } 5465248dbc23SDave Airlie EXPORT_SYMBOL(drm_fb_get_bpp_depth); 5466141670e9SVille Syrjälä 5467141670e9SVille Syrjälä /** 5468141670e9SVille Syrjälä * drm_format_num_planes - get the number of planes for format 5469141670e9SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 5470141670e9SVille Syrjälä * 5471c8e32cc1SDaniel Vetter * Returns: 5472141670e9SVille Syrjälä * The number of planes used by the specified pixel format. 5473141670e9SVille Syrjälä */ 5474141670e9SVille Syrjälä int drm_format_num_planes(uint32_t format) 5475141670e9SVille Syrjälä { 5476141670e9SVille Syrjälä switch (format) { 5477141670e9SVille Syrjälä case DRM_FORMAT_YUV410: 5478141670e9SVille Syrjälä case DRM_FORMAT_YVU410: 5479141670e9SVille Syrjälä case DRM_FORMAT_YUV411: 5480141670e9SVille Syrjälä case DRM_FORMAT_YVU411: 5481141670e9SVille Syrjälä case DRM_FORMAT_YUV420: 5482141670e9SVille Syrjälä case DRM_FORMAT_YVU420: 5483141670e9SVille Syrjälä case DRM_FORMAT_YUV422: 5484141670e9SVille Syrjälä case DRM_FORMAT_YVU422: 5485141670e9SVille Syrjälä case DRM_FORMAT_YUV444: 5486141670e9SVille Syrjälä case DRM_FORMAT_YVU444: 5487141670e9SVille Syrjälä return 3; 5488141670e9SVille Syrjälä case DRM_FORMAT_NV12: 5489141670e9SVille Syrjälä case DRM_FORMAT_NV21: 5490141670e9SVille Syrjälä case DRM_FORMAT_NV16: 5491141670e9SVille Syrjälä case DRM_FORMAT_NV61: 5492ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 5493ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 5494141670e9SVille Syrjälä return 2; 5495141670e9SVille Syrjälä default: 5496141670e9SVille Syrjälä return 1; 5497141670e9SVille Syrjälä } 5498141670e9SVille Syrjälä } 5499141670e9SVille Syrjälä EXPORT_SYMBOL(drm_format_num_planes); 55005a86bd55SVille Syrjälä 55015a86bd55SVille Syrjälä /** 55025a86bd55SVille Syrjälä * drm_format_plane_cpp - determine the bytes per pixel value 55035a86bd55SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 55045a86bd55SVille Syrjälä * @plane: plane index 55055a86bd55SVille Syrjälä * 5506c8e32cc1SDaniel Vetter * Returns: 55075a86bd55SVille Syrjälä * The bytes per pixel value for the specified plane. 55085a86bd55SVille Syrjälä */ 55095a86bd55SVille Syrjälä int drm_format_plane_cpp(uint32_t format, int plane) 55105a86bd55SVille Syrjälä { 55115a86bd55SVille Syrjälä unsigned int depth; 55125a86bd55SVille Syrjälä int bpp; 55135a86bd55SVille Syrjälä 55145a86bd55SVille Syrjälä if (plane >= drm_format_num_planes(format)) 55155a86bd55SVille Syrjälä return 0; 55165a86bd55SVille Syrjälä 55175a86bd55SVille Syrjälä switch (format) { 55185a86bd55SVille Syrjälä case DRM_FORMAT_YUYV: 55195a86bd55SVille Syrjälä case DRM_FORMAT_YVYU: 55205a86bd55SVille Syrjälä case DRM_FORMAT_UYVY: 55215a86bd55SVille Syrjälä case DRM_FORMAT_VYUY: 55225a86bd55SVille Syrjälä return 2; 55235a86bd55SVille Syrjälä case DRM_FORMAT_NV12: 55245a86bd55SVille Syrjälä case DRM_FORMAT_NV21: 55255a86bd55SVille Syrjälä case DRM_FORMAT_NV16: 55265a86bd55SVille Syrjälä case DRM_FORMAT_NV61: 5527ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 5528ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 55295a86bd55SVille Syrjälä return plane ? 2 : 1; 55305a86bd55SVille Syrjälä case DRM_FORMAT_YUV410: 55315a86bd55SVille Syrjälä case DRM_FORMAT_YVU410: 55325a86bd55SVille Syrjälä case DRM_FORMAT_YUV411: 55335a86bd55SVille Syrjälä case DRM_FORMAT_YVU411: 55345a86bd55SVille Syrjälä case DRM_FORMAT_YUV420: 55355a86bd55SVille Syrjälä case DRM_FORMAT_YVU420: 55365a86bd55SVille Syrjälä case DRM_FORMAT_YUV422: 55375a86bd55SVille Syrjälä case DRM_FORMAT_YVU422: 55385a86bd55SVille Syrjälä case DRM_FORMAT_YUV444: 55395a86bd55SVille Syrjälä case DRM_FORMAT_YVU444: 55405a86bd55SVille Syrjälä return 1; 55415a86bd55SVille Syrjälä default: 55425a86bd55SVille Syrjälä drm_fb_get_bpp_depth(format, &depth, &bpp); 55435a86bd55SVille Syrjälä return bpp >> 3; 55445a86bd55SVille Syrjälä } 55455a86bd55SVille Syrjälä } 55465a86bd55SVille Syrjälä EXPORT_SYMBOL(drm_format_plane_cpp); 554701b68b04SVille Syrjälä 554801b68b04SVille Syrjälä /** 554901b68b04SVille Syrjälä * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor 555001b68b04SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 555101b68b04SVille Syrjälä * 5552c8e32cc1SDaniel Vetter * Returns: 555301b68b04SVille Syrjälä * The horizontal chroma subsampling factor for the 555401b68b04SVille Syrjälä * specified pixel format. 555501b68b04SVille Syrjälä */ 555601b68b04SVille Syrjälä int drm_format_horz_chroma_subsampling(uint32_t format) 555701b68b04SVille Syrjälä { 555801b68b04SVille Syrjälä switch (format) { 555901b68b04SVille Syrjälä case DRM_FORMAT_YUV411: 556001b68b04SVille Syrjälä case DRM_FORMAT_YVU411: 556101b68b04SVille Syrjälä case DRM_FORMAT_YUV410: 556201b68b04SVille Syrjälä case DRM_FORMAT_YVU410: 556301b68b04SVille Syrjälä return 4; 556401b68b04SVille Syrjälä case DRM_FORMAT_YUYV: 556501b68b04SVille Syrjälä case DRM_FORMAT_YVYU: 556601b68b04SVille Syrjälä case DRM_FORMAT_UYVY: 556701b68b04SVille Syrjälä case DRM_FORMAT_VYUY: 556801b68b04SVille Syrjälä case DRM_FORMAT_NV12: 556901b68b04SVille Syrjälä case DRM_FORMAT_NV21: 557001b68b04SVille Syrjälä case DRM_FORMAT_NV16: 557101b68b04SVille Syrjälä case DRM_FORMAT_NV61: 557201b68b04SVille Syrjälä case DRM_FORMAT_YUV422: 557301b68b04SVille Syrjälä case DRM_FORMAT_YVU422: 557401b68b04SVille Syrjälä case DRM_FORMAT_YUV420: 557501b68b04SVille Syrjälä case DRM_FORMAT_YVU420: 557601b68b04SVille Syrjälä return 2; 557701b68b04SVille Syrjälä default: 557801b68b04SVille Syrjälä return 1; 557901b68b04SVille Syrjälä } 558001b68b04SVille Syrjälä } 558101b68b04SVille Syrjälä EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); 558201b68b04SVille Syrjälä 558301b68b04SVille Syrjälä /** 558401b68b04SVille Syrjälä * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor 558501b68b04SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 558601b68b04SVille Syrjälä * 5587c8e32cc1SDaniel Vetter * Returns: 558801b68b04SVille Syrjälä * The vertical chroma subsampling factor for the 558901b68b04SVille Syrjälä * specified pixel format. 559001b68b04SVille Syrjälä */ 559101b68b04SVille Syrjälä int drm_format_vert_chroma_subsampling(uint32_t format) 559201b68b04SVille Syrjälä { 559301b68b04SVille Syrjälä switch (format) { 559401b68b04SVille Syrjälä case DRM_FORMAT_YUV410: 559501b68b04SVille Syrjälä case DRM_FORMAT_YVU410: 559601b68b04SVille Syrjälä return 4; 559701b68b04SVille Syrjälä case DRM_FORMAT_YUV420: 559801b68b04SVille Syrjälä case DRM_FORMAT_YVU420: 559901b68b04SVille Syrjälä case DRM_FORMAT_NV12: 560001b68b04SVille Syrjälä case DRM_FORMAT_NV21: 560101b68b04SVille Syrjälä return 2; 560201b68b04SVille Syrjälä default: 560301b68b04SVille Syrjälä return 1; 560401b68b04SVille Syrjälä } 560501b68b04SVille Syrjälä } 560601b68b04SVille Syrjälä EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); 560787d24fc3SLaurent Pinchart 560887d24fc3SLaurent Pinchart /** 56093c9855f6SVille Syrjälä * drm_rotation_simplify() - Try to simplify the rotation 56103c9855f6SVille Syrjälä * @rotation: Rotation to be simplified 56113c9855f6SVille Syrjälä * @supported_rotations: Supported rotations 56123c9855f6SVille Syrjälä * 56133c9855f6SVille Syrjälä * Attempt to simplify the rotation to a form that is supported. 56143c9855f6SVille Syrjälä * Eg. if the hardware supports everything except DRM_REFLECT_X 56153c9855f6SVille Syrjälä * one could call this function like this: 56163c9855f6SVille Syrjälä * 56173c9855f6SVille Syrjälä * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | 56183c9855f6SVille Syrjälä * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | 56193c9855f6SVille Syrjälä * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); 56203c9855f6SVille Syrjälä * 56213c9855f6SVille Syrjälä * to eliminate the DRM_ROTATE_X flag. Depending on what kind of 56223c9855f6SVille Syrjälä * transforms the hardware supports, this function may not 56233c9855f6SVille Syrjälä * be able to produce a supported transform, so the caller should 56243c9855f6SVille Syrjälä * check the result afterwards. 56253c9855f6SVille Syrjälä */ 56263c9855f6SVille Syrjälä unsigned int drm_rotation_simplify(unsigned int rotation, 56273c9855f6SVille Syrjälä unsigned int supported_rotations) 56283c9855f6SVille Syrjälä { 56293c9855f6SVille Syrjälä if (rotation & ~supported_rotations) { 56303c9855f6SVille Syrjälä rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); 563114152c8dSJoonas Lahtinen rotation = (rotation & DRM_REFLECT_MASK) | 563214152c8dSJoonas Lahtinen BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); 56333c9855f6SVille Syrjälä } 56343c9855f6SVille Syrjälä 56353c9855f6SVille Syrjälä return rotation; 56363c9855f6SVille Syrjälä } 56373c9855f6SVille Syrjälä EXPORT_SYMBOL(drm_rotation_simplify); 56383c9855f6SVille Syrjälä 56393c9855f6SVille Syrjälä /** 564087d24fc3SLaurent Pinchart * drm_mode_config_init - initialize DRM mode_configuration structure 564187d24fc3SLaurent Pinchart * @dev: DRM device 564287d24fc3SLaurent Pinchart * 564387d24fc3SLaurent Pinchart * Initialize @dev's mode_config structure, used for tracking the graphics 564487d24fc3SLaurent Pinchart * configuration of @dev. 564587d24fc3SLaurent Pinchart * 564687d24fc3SLaurent Pinchart * Since this initializes the modeset locks, no locking is possible. Which is no 564787d24fc3SLaurent Pinchart * problem, since this should happen single threaded at init time. It is the 564887d24fc3SLaurent Pinchart * driver's problem to ensure this guarantee. 564987d24fc3SLaurent Pinchart * 565087d24fc3SLaurent Pinchart */ 565187d24fc3SLaurent Pinchart void drm_mode_config_init(struct drm_device *dev) 565287d24fc3SLaurent Pinchart { 565387d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.mutex); 565451fd371bSRob Clark drm_modeset_lock_init(&dev->mode_config.connection_mutex); 565587d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.idr_mutex); 565687d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.fb_lock); 56578fb6e7a5SDaniel Stone mutex_init(&dev->mode_config.blob_lock); 565887d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.fb_list); 565987d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.crtc_list); 566087d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.connector_list); 566187d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.encoder_list); 566287d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_list); 566387d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_blob_list); 566487d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.plane_list); 566587d24fc3SLaurent Pinchart idr_init(&dev->mode_config.crtc_idr); 5666138f9ebbSDave Airlie idr_init(&dev->mode_config.tile_idr); 566787d24fc3SLaurent Pinchart 566887d24fc3SLaurent Pinchart drm_modeset_lock_all(dev); 56696b4959f4SRob Clark drm_mode_create_standard_properties(dev); 567087d24fc3SLaurent Pinchart drm_modeset_unlock_all(dev); 567187d24fc3SLaurent Pinchart 567287d24fc3SLaurent Pinchart /* Just to be sure */ 567387d24fc3SLaurent Pinchart dev->mode_config.num_fb = 0; 567487d24fc3SLaurent Pinchart dev->mode_config.num_connector = 0; 567587d24fc3SLaurent Pinchart dev->mode_config.num_crtc = 0; 567687d24fc3SLaurent Pinchart dev->mode_config.num_encoder = 0; 5677e27dde3eSMatt Roper dev->mode_config.num_overlay_plane = 0; 5678e27dde3eSMatt Roper dev->mode_config.num_total_plane = 0; 567987d24fc3SLaurent Pinchart } 568087d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_init); 568187d24fc3SLaurent Pinchart 568287d24fc3SLaurent Pinchart /** 568387d24fc3SLaurent Pinchart * drm_mode_config_cleanup - free up DRM mode_config info 568487d24fc3SLaurent Pinchart * @dev: DRM device 568587d24fc3SLaurent Pinchart * 568687d24fc3SLaurent Pinchart * Free up all the connectors and CRTCs associated with this DRM device, then 568787d24fc3SLaurent Pinchart * free up the framebuffers and associated buffer objects. 568887d24fc3SLaurent Pinchart * 568987d24fc3SLaurent Pinchart * Note that since this /should/ happen single-threaded at driver/device 569087d24fc3SLaurent Pinchart * teardown time, no locking is required. It's the driver's job to ensure that 569187d24fc3SLaurent Pinchart * this guarantee actually holds true. 569287d24fc3SLaurent Pinchart * 569387d24fc3SLaurent Pinchart * FIXME: cleanup any dangling user buffer objects too 569487d24fc3SLaurent Pinchart */ 569587d24fc3SLaurent Pinchart void drm_mode_config_cleanup(struct drm_device *dev) 569687d24fc3SLaurent Pinchart { 569787d24fc3SLaurent Pinchart struct drm_connector *connector, *ot; 569887d24fc3SLaurent Pinchart struct drm_crtc *crtc, *ct; 569987d24fc3SLaurent Pinchart struct drm_encoder *encoder, *enct; 570087d24fc3SLaurent Pinchart struct drm_framebuffer *fb, *fbt; 570187d24fc3SLaurent Pinchart struct drm_property *property, *pt; 570287d24fc3SLaurent Pinchart struct drm_property_blob *blob, *bt; 570387d24fc3SLaurent Pinchart struct drm_plane *plane, *plt; 570487d24fc3SLaurent Pinchart 570587d24fc3SLaurent Pinchart list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, 570687d24fc3SLaurent Pinchart head) { 570787d24fc3SLaurent Pinchart encoder->funcs->destroy(encoder); 570887d24fc3SLaurent Pinchart } 570987d24fc3SLaurent Pinchart 571087d24fc3SLaurent Pinchart list_for_each_entry_safe(connector, ot, 571187d24fc3SLaurent Pinchart &dev->mode_config.connector_list, head) { 571287d24fc3SLaurent Pinchart connector->funcs->destroy(connector); 571387d24fc3SLaurent Pinchart } 571487d24fc3SLaurent Pinchart 571587d24fc3SLaurent Pinchart list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, 571687d24fc3SLaurent Pinchart head) { 571787d24fc3SLaurent Pinchart drm_property_destroy(dev, property); 571887d24fc3SLaurent Pinchart } 571987d24fc3SLaurent Pinchart 572087d24fc3SLaurent Pinchart list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, 5721e2f5d2eaSDaniel Stone head_global) { 57226bcacf51SDaniel Stone drm_property_unreference_blob(blob); 572387d24fc3SLaurent Pinchart } 572487d24fc3SLaurent Pinchart 572587d24fc3SLaurent Pinchart /* 572687d24fc3SLaurent Pinchart * Single-threaded teardown context, so it's not required to grab the 572787d24fc3SLaurent Pinchart * fb_lock to protect against concurrent fb_list access. Contrary, it 572887d24fc3SLaurent Pinchart * would actually deadlock with the drm_framebuffer_cleanup function. 572987d24fc3SLaurent Pinchart * 573087d24fc3SLaurent Pinchart * Also, if there are any framebuffers left, that's a driver leak now, 573187d24fc3SLaurent Pinchart * so politely WARN about this. 573287d24fc3SLaurent Pinchart */ 573387d24fc3SLaurent Pinchart WARN_ON(!list_empty(&dev->mode_config.fb_list)); 573487d24fc3SLaurent Pinchart list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { 5735c099b55aSMaarten Lankhorst drm_framebuffer_free(&fb->refcount); 573687d24fc3SLaurent Pinchart } 573787d24fc3SLaurent Pinchart 573887d24fc3SLaurent Pinchart list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, 573987d24fc3SLaurent Pinchart head) { 574087d24fc3SLaurent Pinchart plane->funcs->destroy(plane); 574187d24fc3SLaurent Pinchart } 574287d24fc3SLaurent Pinchart 574387d24fc3SLaurent Pinchart list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { 574487d24fc3SLaurent Pinchart crtc->funcs->destroy(crtc); 574587d24fc3SLaurent Pinchart } 574687d24fc3SLaurent Pinchart 5747138f9ebbSDave Airlie idr_destroy(&dev->mode_config.tile_idr); 574887d24fc3SLaurent Pinchart idr_destroy(&dev->mode_config.crtc_idr); 574951fd371bSRob Clark drm_modeset_lock_fini(&dev->mode_config.connection_mutex); 575087d24fc3SLaurent Pinchart } 575187d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_cleanup); 5752c1df5f3cSVille Syrjälä 5753c1df5f3cSVille Syrjälä struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, 5754c1df5f3cSVille Syrjälä unsigned int supported_rotations) 5755c1df5f3cSVille Syrjälä { 5756c1df5f3cSVille Syrjälä static const struct drm_prop_enum_list props[] = { 5757c1df5f3cSVille Syrjälä { DRM_ROTATE_0, "rotate-0" }, 5758c1df5f3cSVille Syrjälä { DRM_ROTATE_90, "rotate-90" }, 5759c1df5f3cSVille Syrjälä { DRM_ROTATE_180, "rotate-180" }, 5760c1df5f3cSVille Syrjälä { DRM_ROTATE_270, "rotate-270" }, 5761c1df5f3cSVille Syrjälä { DRM_REFLECT_X, "reflect-x" }, 5762c1df5f3cSVille Syrjälä { DRM_REFLECT_Y, "reflect-y" }, 5763c1df5f3cSVille Syrjälä }; 5764c1df5f3cSVille Syrjälä 5765c1df5f3cSVille Syrjälä return drm_property_create_bitmask(dev, 0, "rotation", 5766c1df5f3cSVille Syrjälä props, ARRAY_SIZE(props), 5767c1df5f3cSVille Syrjälä supported_rotations); 5768c1df5f3cSVille Syrjälä } 5769c1df5f3cSVille Syrjälä EXPORT_SYMBOL(drm_mode_create_rotation_property); 5770138f9ebbSDave Airlie 5771138f9ebbSDave Airlie /** 5772138f9ebbSDave Airlie * DOC: Tile group 5773138f9ebbSDave Airlie * 5774138f9ebbSDave Airlie * Tile groups are used to represent tiled monitors with a unique 5775138f9ebbSDave Airlie * integer identifier. Tiled monitors using DisplayID v1.3 have 5776138f9ebbSDave Airlie * a unique 8-byte handle, we store this in a tile group, so we 5777138f9ebbSDave Airlie * have a common identifier for all tiles in a monitor group. 5778138f9ebbSDave Airlie */ 5779138f9ebbSDave Airlie static void drm_tile_group_free(struct kref *kref) 5780138f9ebbSDave Airlie { 5781138f9ebbSDave Airlie struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); 5782138f9ebbSDave Airlie struct drm_device *dev = tg->dev; 5783138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5784138f9ebbSDave Airlie idr_remove(&dev->mode_config.tile_idr, tg->id); 5785138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5786138f9ebbSDave Airlie kfree(tg); 5787138f9ebbSDave Airlie } 5788138f9ebbSDave Airlie 5789138f9ebbSDave Airlie /** 5790138f9ebbSDave Airlie * drm_mode_put_tile_group - drop a reference to a tile group. 5791138f9ebbSDave Airlie * @dev: DRM device 5792138f9ebbSDave Airlie * @tg: tile group to drop reference to. 5793138f9ebbSDave Airlie * 5794138f9ebbSDave Airlie * drop reference to tile group and free if 0. 5795138f9ebbSDave Airlie */ 5796138f9ebbSDave Airlie void drm_mode_put_tile_group(struct drm_device *dev, 5797138f9ebbSDave Airlie struct drm_tile_group *tg) 5798138f9ebbSDave Airlie { 5799138f9ebbSDave Airlie kref_put(&tg->refcount, drm_tile_group_free); 5800138f9ebbSDave Airlie } 5801138f9ebbSDave Airlie 5802138f9ebbSDave Airlie /** 5803138f9ebbSDave Airlie * drm_mode_get_tile_group - get a reference to an existing tile group 5804138f9ebbSDave Airlie * @dev: DRM device 5805138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 5806138f9ebbSDave Airlie * 5807138f9ebbSDave Airlie * Use the unique bytes to get a reference to an existing tile group. 5808138f9ebbSDave Airlie * 5809138f9ebbSDave Airlie * RETURNS: 5810138f9ebbSDave Airlie * tile group or NULL if not found. 5811138f9ebbSDave Airlie */ 5812138f9ebbSDave Airlie struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, 5813138f9ebbSDave Airlie char topology[8]) 5814138f9ebbSDave Airlie { 5815138f9ebbSDave Airlie struct drm_tile_group *tg; 5816138f9ebbSDave Airlie int id; 5817138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5818138f9ebbSDave Airlie idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { 5819138f9ebbSDave Airlie if (!memcmp(tg->group_data, topology, 8)) { 5820138f9ebbSDave Airlie if (!kref_get_unless_zero(&tg->refcount)) 5821138f9ebbSDave Airlie tg = NULL; 5822138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5823138f9ebbSDave Airlie return tg; 5824138f9ebbSDave Airlie } 5825138f9ebbSDave Airlie } 5826138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5827138f9ebbSDave Airlie return NULL; 5828138f9ebbSDave Airlie } 582981ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_get_tile_group); 5830138f9ebbSDave Airlie 5831138f9ebbSDave Airlie /** 5832138f9ebbSDave Airlie * drm_mode_create_tile_group - create a tile group from a displayid description 5833138f9ebbSDave Airlie * @dev: DRM device 5834138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 5835138f9ebbSDave Airlie * 5836138f9ebbSDave Airlie * Create a tile group for the unique monitor, and get a unique 5837138f9ebbSDave Airlie * identifier for the tile group. 5838138f9ebbSDave Airlie * 5839138f9ebbSDave Airlie * RETURNS: 5840138f9ebbSDave Airlie * new tile group or error. 5841138f9ebbSDave Airlie */ 5842138f9ebbSDave Airlie struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, 5843138f9ebbSDave Airlie char topology[8]) 5844138f9ebbSDave Airlie { 5845138f9ebbSDave Airlie struct drm_tile_group *tg; 5846138f9ebbSDave Airlie int ret; 5847138f9ebbSDave Airlie 5848138f9ebbSDave Airlie tg = kzalloc(sizeof(*tg), GFP_KERNEL); 5849138f9ebbSDave Airlie if (!tg) 5850138f9ebbSDave Airlie return ERR_PTR(-ENOMEM); 5851138f9ebbSDave Airlie 5852138f9ebbSDave Airlie kref_init(&tg->refcount); 5853138f9ebbSDave Airlie memcpy(tg->group_data, topology, 8); 5854138f9ebbSDave Airlie tg->dev = dev; 5855138f9ebbSDave Airlie 5856138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5857138f9ebbSDave Airlie ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); 5858138f9ebbSDave Airlie if (ret >= 0) { 5859138f9ebbSDave Airlie tg->id = ret; 5860138f9ebbSDave Airlie } else { 5861138f9ebbSDave Airlie kfree(tg); 5862138f9ebbSDave Airlie tg = ERR_PTR(ret); 5863138f9ebbSDave Airlie } 5864138f9ebbSDave Airlie 5865138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5866138f9ebbSDave Airlie return tg; 5867138f9ebbSDave Airlie } 586881ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_create_tile_group); 5869