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: 309f453ba04SDave Airlie * New unique (relative to other objects in @dev) integer identifier for the 310f453ba04SDave Airlie * object. 311f453ba04SDave Airlie */ 3128bd441b2SDaniel Vetter int drm_mode_object_get(struct drm_device *dev, 313f453ba04SDave Airlie struct drm_mode_object *obj, uint32_t obj_type) 314f453ba04SDave Airlie { 3152ee39452SDave Airlie return drm_mode_object_get_reg(dev, obj, obj_type, true); 3164b096ac1SDaniel Vetter } 3174b096ac1SDaniel Vetter 3182ee39452SDave Airlie static void drm_mode_object_register(struct drm_device *dev, 3192ee39452SDave Airlie struct drm_mode_object *obj) 3202ee39452SDave Airlie { 3212ee39452SDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 3222ee39452SDave Airlie idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); 3232ee39452SDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 324f453ba04SDave Airlie } 325f453ba04SDave Airlie 326f453ba04SDave Airlie /** 327065a50edSDaniel Vetter * drm_mode_object_put - free a modeset identifer 328f453ba04SDave Airlie * @dev: DRM device 329065a50edSDaniel Vetter * @object: object to free 330f453ba04SDave Airlie * 331c8e32cc1SDaniel Vetter * Free @id from @dev's unique identifier pool. Note that despite the _get 332c8e32cc1SDaniel Vetter * postfix modeset identifiers are _not_ reference counted. Hence don't use this 333c8e32cc1SDaniel Vetter * for reference counted modeset objects like framebuffers. 334f453ba04SDave Airlie */ 3358bd441b2SDaniel Vetter void drm_mode_object_put(struct drm_device *dev, 336f453ba04SDave Airlie struct drm_mode_object *object) 337f453ba04SDave Airlie { 338ad2563c2SJesse Barnes mutex_lock(&dev->mode_config.idr_mutex); 339f453ba04SDave Airlie idr_remove(&dev->mode_config.crtc_idr, object->id); 340ad2563c2SJesse Barnes mutex_unlock(&dev->mode_config.idr_mutex); 341f453ba04SDave Airlie } 342f453ba04SDave Airlie 34398f75de4SRob Clark static struct drm_mode_object *_object_find(struct drm_device *dev, 34498f75de4SRob Clark uint32_t id, uint32_t type) 34598f75de4SRob Clark { 34698f75de4SRob Clark struct drm_mode_object *obj = NULL; 34798f75de4SRob Clark 34898f75de4SRob Clark mutex_lock(&dev->mode_config.idr_mutex); 34998f75de4SRob Clark obj = idr_find(&dev->mode_config.crtc_idr, id); 350168c02ecSDaniel Vetter if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) 351168c02ecSDaniel Vetter obj = NULL; 352168c02ecSDaniel Vetter if (obj && obj->id != id) 353168c02ecSDaniel Vetter obj = NULL; 354168c02ecSDaniel Vetter /* don't leak out unref'd fb's */ 3556bcacf51SDaniel Stone if (obj && 3566bcacf51SDaniel Stone (obj->type == DRM_MODE_OBJECT_FB || 3576bcacf51SDaniel Stone obj->type == DRM_MODE_OBJECT_BLOB)) 35898f75de4SRob Clark obj = NULL; 35998f75de4SRob Clark mutex_unlock(&dev->mode_config.idr_mutex); 36098f75de4SRob Clark 36198f75de4SRob Clark return obj; 36298f75de4SRob Clark } 36398f75de4SRob Clark 364786b99edSDaniel Vetter /** 365786b99edSDaniel Vetter * drm_mode_object_find - look up a drm object with static lifetime 366786b99edSDaniel Vetter * @dev: drm device 367786b99edSDaniel Vetter * @id: id of the mode object 368786b99edSDaniel Vetter * @type: type of the mode object 369786b99edSDaniel Vetter * 370786b99edSDaniel Vetter * Note that framebuffers cannot be looked up with this functions - since those 37198f75de4SRob Clark * are reference counted, they need special treatment. Even with 37298f75de4SRob Clark * DRM_MODE_OBJECT_ANY (although that will simply return NULL 37398f75de4SRob Clark * rather than WARN_ON()). 374786b99edSDaniel Vetter */ 3757a9c9060SDaniel Vetter struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 3767a9c9060SDaniel Vetter uint32_t id, uint32_t type) 377f453ba04SDave Airlie { 378ad2563c2SJesse Barnes struct drm_mode_object *obj = NULL; 379f453ba04SDave Airlie 380786b99edSDaniel Vetter /* Framebuffers are reference counted and need their own lookup 381786b99edSDaniel Vetter * function.*/ 3826bcacf51SDaniel Stone WARN_ON(type == DRM_MODE_OBJECT_FB || type == DRM_MODE_OBJECT_BLOB); 38398f75de4SRob Clark obj = _object_find(dev, id, type); 384f453ba04SDave Airlie return obj; 385f453ba04SDave Airlie } 386f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_object_find); 387f453ba04SDave Airlie 388f453ba04SDave Airlie /** 389f453ba04SDave Airlie * drm_framebuffer_init - initialize a framebuffer 390f453ba04SDave Airlie * @dev: DRM device 391065a50edSDaniel Vetter * @fb: framebuffer to be initialized 392065a50edSDaniel Vetter * @funcs: ... with these functions 393f453ba04SDave Airlie * 394f453ba04SDave Airlie * Allocates an ID for the framebuffer's parent mode object, sets its mode 395f453ba04SDave Airlie * functions & device file and adds it to the master fd list. 396f453ba04SDave Airlie * 3974b096ac1SDaniel Vetter * IMPORTANT: 3984b096ac1SDaniel Vetter * This functions publishes the fb and makes it available for concurrent access 3994b096ac1SDaniel Vetter * by other users. Which means by this point the fb _must_ be fully set up - 4004b096ac1SDaniel Vetter * since all the fb attributes are invariant over its lifetime, no further 4014b096ac1SDaniel Vetter * locking but only correct reference counting is required. 4024b096ac1SDaniel Vetter * 403c8e32cc1SDaniel Vetter * Returns: 404af901ca1SAndré Goddard Rosa * Zero on success, error code on failure. 405f453ba04SDave Airlie */ 406f453ba04SDave Airlie int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, 407f453ba04SDave Airlie const struct drm_framebuffer_funcs *funcs) 408f453ba04SDave Airlie { 409f453ba04SDave Airlie int ret; 410f453ba04SDave Airlie 4114b096ac1SDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 412f7eff60eSRob Clark kref_init(&fb->refcount); 4134b096ac1SDaniel Vetter INIT_LIST_HEAD(&fb->filp_head); 4144b096ac1SDaniel Vetter fb->dev = dev; 4154b096ac1SDaniel Vetter fb->funcs = funcs; 416f7eff60eSRob Clark 417f453ba04SDave Airlie ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); 4186bfc56aaSVille Syrjälä if (ret) 4194b096ac1SDaniel Vetter goto out; 420f453ba04SDave Airlie 421f453ba04SDave Airlie dev->mode_config.num_fb++; 422f453ba04SDave Airlie list_add(&fb->head, &dev->mode_config.fb_list); 4234b096ac1SDaniel Vetter out: 4244b096ac1SDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 425f453ba04SDave Airlie 426f453ba04SDave Airlie return 0; 427f453ba04SDave Airlie } 428f453ba04SDave Airlie EXPORT_SYMBOL(drm_framebuffer_init); 429f453ba04SDave Airlie 43083f45fc3SDaniel Vetter /* dev->mode_config.fb_lock must be held! */ 43183f45fc3SDaniel Vetter static void __drm_framebuffer_unregister(struct drm_device *dev, 43283f45fc3SDaniel Vetter struct drm_framebuffer *fb) 43383f45fc3SDaniel Vetter { 43483f45fc3SDaniel Vetter mutex_lock(&dev->mode_config.idr_mutex); 43583f45fc3SDaniel Vetter idr_remove(&dev->mode_config.crtc_idr, fb->base.id); 43683f45fc3SDaniel Vetter mutex_unlock(&dev->mode_config.idr_mutex); 43783f45fc3SDaniel Vetter 43883f45fc3SDaniel Vetter fb->base.id = 0; 43983f45fc3SDaniel Vetter } 44083f45fc3SDaniel Vetter 441f7eff60eSRob Clark static void drm_framebuffer_free(struct kref *kref) 442f7eff60eSRob Clark { 443f7eff60eSRob Clark struct drm_framebuffer *fb = 444f7eff60eSRob Clark container_of(kref, struct drm_framebuffer, refcount); 44583f45fc3SDaniel Vetter struct drm_device *dev = fb->dev; 44683f45fc3SDaniel Vetter 44783f45fc3SDaniel Vetter /* 44883f45fc3SDaniel Vetter * The lookup idr holds a weak reference, which has not necessarily been 44983f45fc3SDaniel Vetter * removed at this point. Check for that. 45083f45fc3SDaniel Vetter */ 45183f45fc3SDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 45283f45fc3SDaniel Vetter if (fb->base.id) { 45383f45fc3SDaniel Vetter /* Mark fb as reaped and drop idr ref. */ 45483f45fc3SDaniel Vetter __drm_framebuffer_unregister(dev, fb); 45583f45fc3SDaniel Vetter } 45683f45fc3SDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 45783f45fc3SDaniel Vetter 458f7eff60eSRob Clark fb->funcs->destroy(fb); 459f7eff60eSRob Clark } 460f7eff60eSRob Clark 4612b677e8cSDaniel Vetter static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, 4622b677e8cSDaniel Vetter uint32_t id) 4632b677e8cSDaniel Vetter { 4642b677e8cSDaniel Vetter struct drm_mode_object *obj = NULL; 4652b677e8cSDaniel Vetter struct drm_framebuffer *fb; 4662b677e8cSDaniel Vetter 4672b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.idr_mutex); 4682b677e8cSDaniel Vetter obj = idr_find(&dev->mode_config.crtc_idr, id); 4692b677e8cSDaniel Vetter if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) 4702b677e8cSDaniel Vetter fb = NULL; 4712b677e8cSDaniel Vetter else 4722b677e8cSDaniel Vetter fb = obj_to_fb(obj); 4732b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.idr_mutex); 4742b677e8cSDaniel Vetter 4752b677e8cSDaniel Vetter return fb; 4762b677e8cSDaniel Vetter } 4772b677e8cSDaniel Vetter 478f7eff60eSRob Clark /** 479786b99edSDaniel Vetter * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference 480786b99edSDaniel Vetter * @dev: drm device 481786b99edSDaniel Vetter * @id: id of the fb object 482786b99edSDaniel Vetter * 483786b99edSDaniel Vetter * If successful, this grabs an additional reference to the framebuffer - 484786b99edSDaniel Vetter * callers need to make sure to eventually unreference the returned framebuffer 485c8e32cc1SDaniel Vetter * again, using @drm_framebuffer_unreference. 486786b99edSDaniel Vetter */ 487786b99edSDaniel Vetter struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, 488786b99edSDaniel Vetter uint32_t id) 489786b99edSDaniel Vetter { 490786b99edSDaniel Vetter struct drm_framebuffer *fb; 491786b99edSDaniel Vetter 492786b99edSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 4932b677e8cSDaniel Vetter fb = __drm_framebuffer_lookup(dev, id); 49483f45fc3SDaniel Vetter if (fb) { 49583f45fc3SDaniel Vetter if (!kref_get_unless_zero(&fb->refcount)) 49683f45fc3SDaniel Vetter fb = NULL; 49783f45fc3SDaniel Vetter } 498786b99edSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 499786b99edSDaniel Vetter 500786b99edSDaniel Vetter return fb; 501786b99edSDaniel Vetter } 502786b99edSDaniel Vetter EXPORT_SYMBOL(drm_framebuffer_lookup); 503786b99edSDaniel Vetter 504786b99edSDaniel Vetter /** 505f7eff60eSRob Clark * drm_framebuffer_unreference - unref a framebuffer 506065a50edSDaniel Vetter * @fb: framebuffer to unref 507065a50edSDaniel Vetter * 508065a50edSDaniel Vetter * This functions decrements the fb's refcount and frees it if it drops to zero. 509f7eff60eSRob Clark */ 510f7eff60eSRob Clark void drm_framebuffer_unreference(struct drm_framebuffer *fb) 511f7eff60eSRob Clark { 5128291272aSRob Clark DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); 513f7eff60eSRob Clark kref_put(&fb->refcount, drm_framebuffer_free); 514f7eff60eSRob Clark } 515f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_unreference); 516f7eff60eSRob Clark 517f7eff60eSRob Clark /** 518f7eff60eSRob Clark * drm_framebuffer_reference - incr the fb refcnt 519065a50edSDaniel Vetter * @fb: framebuffer 520c8e32cc1SDaniel Vetter * 521c8e32cc1SDaniel Vetter * This functions increments the fb's refcount. 522f7eff60eSRob Clark */ 523f7eff60eSRob Clark void drm_framebuffer_reference(struct drm_framebuffer *fb) 524f7eff60eSRob Clark { 5258291272aSRob Clark DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); 526f7eff60eSRob Clark kref_get(&fb->refcount); 527f7eff60eSRob Clark } 528f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_reference); 529f7eff60eSRob Clark 530f453ba04SDave Airlie /** 53136206361SDaniel Vetter * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr 53236206361SDaniel Vetter * @fb: fb to unregister 53336206361SDaniel Vetter * 53436206361SDaniel Vetter * Drivers need to call this when cleaning up driver-private framebuffers, e.g. 53536206361SDaniel Vetter * those used for fbdev. Note that the caller must hold a reference of it's own, 53636206361SDaniel Vetter * i.e. the object may not be destroyed through this call (since it'll lead to a 53736206361SDaniel Vetter * locking inversion). 53836206361SDaniel Vetter */ 53936206361SDaniel Vetter void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) 54036206361SDaniel Vetter { 541a39a357cSDaniel Vetter struct drm_device *dev; 542a39a357cSDaniel Vetter 543a39a357cSDaniel Vetter if (!fb) 544a39a357cSDaniel Vetter return; 545a39a357cSDaniel Vetter 546a39a357cSDaniel Vetter dev = fb->dev; 5472b677e8cSDaniel Vetter 5482b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 5492b677e8cSDaniel Vetter /* Mark fb as reaped and drop idr ref. */ 5502b677e8cSDaniel Vetter __drm_framebuffer_unregister(dev, fb); 5512b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 55236206361SDaniel Vetter } 55336206361SDaniel Vetter EXPORT_SYMBOL(drm_framebuffer_unregister_private); 55436206361SDaniel Vetter 55536206361SDaniel Vetter /** 556f453ba04SDave Airlie * drm_framebuffer_cleanup - remove a framebuffer object 557f453ba04SDave Airlie * @fb: framebuffer to remove 558f453ba04SDave Airlie * 559c8e32cc1SDaniel Vetter * Cleanup framebuffer. This function is intended to be used from the drivers 560c8e32cc1SDaniel Vetter * ->destroy callback. It can also be used to clean up driver private 561c8e32cc1SDaniel Vetter * framebuffers embedded into a larger structure. 56236206361SDaniel Vetter * 56336206361SDaniel Vetter * Note that this function does not remove the fb from active usuage - if it is 56436206361SDaniel Vetter * still used anywhere, hilarity can ensue since userspace could call getfb on 56536206361SDaniel Vetter * the id and get back -EINVAL. Obviously no concern at driver unload time. 56636206361SDaniel Vetter * 56736206361SDaniel Vetter * Also, the framebuffer will not be removed from the lookup idr - for 56836206361SDaniel Vetter * user-created framebuffers this will happen in in the rmfb ioctl. For 56936206361SDaniel Vetter * driver-private objects (e.g. for fbdev) drivers need to explicitly call 57036206361SDaniel Vetter * drm_framebuffer_unregister_private. 571f453ba04SDave Airlie */ 572f453ba04SDave Airlie void drm_framebuffer_cleanup(struct drm_framebuffer *fb) 573f453ba04SDave Airlie { 574f453ba04SDave Airlie struct drm_device *dev = fb->dev; 5758faf6b18SDaniel Vetter 5764b096ac1SDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 577f7eff60eSRob Clark list_del(&fb->head); 578f7eff60eSRob Clark dev->mode_config.num_fb--; 5794b096ac1SDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 580f7eff60eSRob Clark } 581f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_cleanup); 582f7eff60eSRob Clark 583f7eff60eSRob Clark /** 584f7eff60eSRob Clark * drm_framebuffer_remove - remove and unreference a framebuffer object 585f7eff60eSRob Clark * @fb: framebuffer to remove 586f7eff60eSRob Clark * 587f7eff60eSRob Clark * Scans all the CRTCs and planes in @dev's mode_config. If they're 58836206361SDaniel Vetter * using @fb, removes it, setting it to NULL. Then drops the reference to the 589b62584e3SDaniel Vetter * passed-in framebuffer. Might take the modeset locks. 590b62584e3SDaniel Vetter * 591b62584e3SDaniel Vetter * Note that this function optimizes the cleanup away if the caller holds the 592b62584e3SDaniel Vetter * last reference to the framebuffer. It is also guaranteed to not take the 593b62584e3SDaniel Vetter * modeset locks in this case. 594f7eff60eSRob Clark */ 595f7eff60eSRob Clark void drm_framebuffer_remove(struct drm_framebuffer *fb) 596f7eff60eSRob Clark { 597a39a357cSDaniel Vetter struct drm_device *dev; 598f453ba04SDave Airlie struct drm_crtc *crtc; 5998cf5c917SJesse Barnes struct drm_plane *plane; 6005ef5f72fSDave Airlie struct drm_mode_set set; 6015ef5f72fSDave Airlie int ret; 602f453ba04SDave Airlie 603a39a357cSDaniel Vetter if (!fb) 604a39a357cSDaniel Vetter return; 605a39a357cSDaniel Vetter 606a39a357cSDaniel Vetter dev = fb->dev; 607a39a357cSDaniel Vetter 6084b096ac1SDaniel Vetter WARN_ON(!list_empty(&fb->filp_head)); 6098faf6b18SDaniel Vetter 610b62584e3SDaniel Vetter /* 611b62584e3SDaniel Vetter * drm ABI mandates that we remove any deleted framebuffers from active 612b62584e3SDaniel Vetter * useage. But since most sane clients only remove framebuffers they no 613b62584e3SDaniel Vetter * longer need, try to optimize this away. 614b62584e3SDaniel Vetter * 615b62584e3SDaniel Vetter * Since we're holding a reference ourselves, observing a refcount of 1 616b62584e3SDaniel Vetter * means that we're the last holder and can skip it. Also, the refcount 617b62584e3SDaniel Vetter * can never increase from 1 again, so we don't need any barriers or 618b62584e3SDaniel Vetter * locks. 619b62584e3SDaniel Vetter * 620b62584e3SDaniel Vetter * Note that userspace could try to race with use and instate a new 621b62584e3SDaniel Vetter * usage _after_ we've cleared all current ones. End result will be an 622b62584e3SDaniel Vetter * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot 623b62584e3SDaniel Vetter * in this manner. 624b62584e3SDaniel Vetter */ 625b62584e3SDaniel Vetter if (atomic_read(&fb->refcount.refcount) > 1) { 626b62584e3SDaniel Vetter drm_modeset_lock_all(dev); 627f453ba04SDave Airlie /* remove from any CRTC */ 6286295d607SDaniel Vetter drm_for_each_crtc(crtc, dev) { 629f4510a27SMatt Roper if (crtc->primary->fb == fb) { 6305ef5f72fSDave Airlie /* should turn off the crtc */ 6315ef5f72fSDave Airlie memset(&set, 0, sizeof(struct drm_mode_set)); 6325ef5f72fSDave Airlie set.crtc = crtc; 6335ef5f72fSDave Airlie set.fb = NULL; 6342d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 6355ef5f72fSDave Airlie if (ret) 6365ef5f72fSDave Airlie DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); 6375ef5f72fSDave Airlie } 638f453ba04SDave Airlie } 639f453ba04SDave Airlie 6406295d607SDaniel Vetter drm_for_each_plane(plane, dev) { 6419125e618SVille Syrjälä if (plane->fb == fb) 6429125e618SVille Syrjälä drm_plane_force_disable(plane); 6438cf5c917SJesse Barnes } 644b62584e3SDaniel Vetter drm_modeset_unlock_all(dev); 645b62584e3SDaniel Vetter } 6468cf5c917SJesse Barnes 647f7eff60eSRob Clark drm_framebuffer_unreference(fb); 648f453ba04SDave Airlie } 649f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_remove); 650f453ba04SDave Airlie 65151fd371bSRob Clark DEFINE_WW_CLASS(crtc_ww_class); 65251fd371bSRob Clark 653f453ba04SDave Airlie /** 654e13161afSMatt Roper * drm_crtc_init_with_planes - Initialise a new CRTC object with 655e13161afSMatt Roper * specified primary and cursor planes. 656f453ba04SDave Airlie * @dev: DRM device 657f453ba04SDave Airlie * @crtc: CRTC object to init 658e13161afSMatt Roper * @primary: Primary plane for CRTC 659e13161afSMatt Roper * @cursor: Cursor plane for CRTC 660f453ba04SDave Airlie * @funcs: callbacks for the new CRTC 661f453ba04SDave Airlie * 662ad6f5c34SVille Syrjälä * Inits a new object created as base part of a driver crtc object. 6636bfc56aaSVille Syrjälä * 664c8e32cc1SDaniel Vetter * Returns: 6656bfc56aaSVille Syrjälä * Zero on success, error code on failure. 666f453ba04SDave Airlie */ 667e13161afSMatt Roper int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, 668e13161afSMatt Roper struct drm_plane *primary, 669fc1d3e44SMatt Roper struct drm_plane *cursor, 670f453ba04SDave Airlie const struct drm_crtc_funcs *funcs) 671f453ba04SDave Airlie { 67251fd371bSRob Clark struct drm_mode_config *config = &dev->mode_config; 6736bfc56aaSVille Syrjälä int ret; 6746bfc56aaSVille Syrjälä 675522cf91fSBenjamin Gaignard WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); 676522cf91fSBenjamin Gaignard WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); 677522cf91fSBenjamin Gaignard 678f453ba04SDave Airlie crtc->dev = dev; 679f453ba04SDave Airlie crtc->funcs = funcs; 6807c80e128SRob Clark crtc->invert_dimensions = false; 681f453ba04SDave Airlie 68251fd371bSRob Clark drm_modeset_lock_init(&crtc->mutex); 6836bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 6846bfc56aaSVille Syrjälä if (ret) 685baf698b0SDaniel Vetter return ret; 686f453ba04SDave Airlie 687bffd9de0SPaulo Zanoni crtc->base.properties = &crtc->properties; 688bffd9de0SPaulo Zanoni 68951fd371bSRob Clark list_add_tail(&crtc->head, &config->crtc_list); 69051fd371bSRob Clark config->num_crtc++; 6916bfc56aaSVille Syrjälä 692e13161afSMatt Roper crtc->primary = primary; 693fc1d3e44SMatt Roper crtc->cursor = cursor; 694e13161afSMatt Roper if (primary) 695e13161afSMatt Roper primary->possible_crtcs = 1 << drm_crtc_index(crtc); 696fc1d3e44SMatt Roper if (cursor) 697fc1d3e44SMatt Roper cursor->possible_crtcs = 1 << drm_crtc_index(crtc); 698e13161afSMatt Roper 699eab3bbefSDaniel Vetter if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 700eab3bbefSDaniel Vetter drm_object_attach_property(&crtc->base, config->prop_active, 0); 701955f3c33SDaniel Stone drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); 702eab3bbefSDaniel Vetter } 703eab3bbefSDaniel Vetter 704baf698b0SDaniel Vetter return 0; 705f453ba04SDave Airlie } 706e13161afSMatt Roper EXPORT_SYMBOL(drm_crtc_init_with_planes); 707f453ba04SDave Airlie 708f453ba04SDave Airlie /** 709ad6f5c34SVille Syrjälä * drm_crtc_cleanup - Clean up the core crtc usage 710f453ba04SDave Airlie * @crtc: CRTC to cleanup 711f453ba04SDave Airlie * 712ad6f5c34SVille Syrjälä * This function cleans up @crtc and removes it from the DRM mode setting 713ad6f5c34SVille Syrjälä * core. Note that the function does *not* free the crtc structure itself, 714ad6f5c34SVille Syrjälä * this is the responsibility of the caller. 715f453ba04SDave Airlie */ 716f453ba04SDave Airlie void drm_crtc_cleanup(struct drm_crtc *crtc) 717f453ba04SDave Airlie { 718f453ba04SDave Airlie struct drm_device *dev = crtc->dev; 719f453ba04SDave Airlie 720f453ba04SDave Airlie kfree(crtc->gamma_store); 721f453ba04SDave Airlie crtc->gamma_store = NULL; 722f453ba04SDave Airlie 72351fd371bSRob Clark drm_modeset_lock_fini(&crtc->mutex); 72451fd371bSRob Clark 725f453ba04SDave Airlie drm_mode_object_put(dev, &crtc->base); 726f453ba04SDave Airlie list_del(&crtc->head); 727f453ba04SDave Airlie dev->mode_config.num_crtc--; 7283009c037SThierry Reding 7293009c037SThierry Reding WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); 7303009c037SThierry Reding if (crtc->state && crtc->funcs->atomic_destroy_state) 7313009c037SThierry Reding crtc->funcs->atomic_destroy_state(crtc, crtc->state); 732a18c0af1SThierry Reding 733a18c0af1SThierry Reding memset(crtc, 0, sizeof(*crtc)); 734f453ba04SDave Airlie } 735f453ba04SDave Airlie EXPORT_SYMBOL(drm_crtc_cleanup); 736f453ba04SDave Airlie 737f453ba04SDave Airlie /** 738db5f7a6eSRussell King * drm_crtc_index - find the index of a registered CRTC 739db5f7a6eSRussell King * @crtc: CRTC to find index for 740db5f7a6eSRussell King * 741db5f7a6eSRussell King * Given a registered CRTC, return the index of that CRTC within a DRM 742db5f7a6eSRussell King * device's list of CRTCs. 743db5f7a6eSRussell King */ 744db5f7a6eSRussell King unsigned int drm_crtc_index(struct drm_crtc *crtc) 745db5f7a6eSRussell King { 746db5f7a6eSRussell King unsigned int index = 0; 747db5f7a6eSRussell King struct drm_crtc *tmp; 748db5f7a6eSRussell King 749e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) { 750db5f7a6eSRussell King if (tmp == crtc) 751db5f7a6eSRussell King return index; 752db5f7a6eSRussell King 753db5f7a6eSRussell King index++; 754db5f7a6eSRussell King } 755db5f7a6eSRussell King 756db5f7a6eSRussell King BUG(); 757db5f7a6eSRussell King } 758db5f7a6eSRussell King EXPORT_SYMBOL(drm_crtc_index); 759db5f7a6eSRussell King 76086f422d5SLespiau, Damien /* 761f453ba04SDave Airlie * drm_mode_remove - remove and free a mode 762f453ba04SDave Airlie * @connector: connector list to modify 763f453ba04SDave Airlie * @mode: mode to remove 764f453ba04SDave Airlie * 765f453ba04SDave Airlie * Remove @mode from @connector's mode list, then free it. 766f453ba04SDave Airlie */ 76786f422d5SLespiau, Damien static void drm_mode_remove(struct drm_connector *connector, 768f453ba04SDave Airlie struct drm_display_mode *mode) 769f453ba04SDave Airlie { 770f453ba04SDave Airlie list_del(&mode->head); 771554f1d78SSascha Hauer drm_mode_destroy(connector->dev, mode); 772f453ba04SDave Airlie } 773f453ba04SDave Airlie 774f453ba04SDave Airlie /** 775b5571e9dSBoris Brezillon * drm_display_info_set_bus_formats - set the supported bus formats 776b5571e9dSBoris Brezillon * @info: display info to store bus formats in 777e37bfa1aSBoris Brezillon * @formats: array containing the supported bus formats 778e37bfa1aSBoris Brezillon * @num_formats: the number of entries in the fmts array 779b5571e9dSBoris Brezillon * 780b5571e9dSBoris Brezillon * Store the supported bus formats in display info structure. 781b5571e9dSBoris Brezillon * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for 782b5571e9dSBoris Brezillon * a full list of available formats. 783b5571e9dSBoris Brezillon */ 784b5571e9dSBoris Brezillon int drm_display_info_set_bus_formats(struct drm_display_info *info, 785b5571e9dSBoris Brezillon const u32 *formats, 786b5571e9dSBoris Brezillon unsigned int num_formats) 787b5571e9dSBoris Brezillon { 788b5571e9dSBoris Brezillon u32 *fmts = NULL; 789b5571e9dSBoris Brezillon 790b5571e9dSBoris Brezillon if (!formats && num_formats) 791b5571e9dSBoris Brezillon return -EINVAL; 792b5571e9dSBoris Brezillon 793b5571e9dSBoris Brezillon if (formats && num_formats) { 794b5571e9dSBoris Brezillon fmts = kmemdup(formats, sizeof(*formats) * num_formats, 795b5571e9dSBoris Brezillon GFP_KERNEL); 796944579c5SDan Carpenter if (!fmts) 797b5571e9dSBoris Brezillon return -ENOMEM; 798b5571e9dSBoris Brezillon } 799b5571e9dSBoris Brezillon 800b5571e9dSBoris Brezillon kfree(info->bus_formats); 801b5571e9dSBoris Brezillon info->bus_formats = fmts; 802b5571e9dSBoris Brezillon info->num_bus_formats = num_formats; 803b5571e9dSBoris Brezillon 804b5571e9dSBoris Brezillon return 0; 805b5571e9dSBoris Brezillon } 806b5571e9dSBoris Brezillon EXPORT_SYMBOL(drm_display_info_set_bus_formats); 807b5571e9dSBoris Brezillon 808b5571e9dSBoris Brezillon /** 809eaf99c74SChris Wilson * drm_connector_get_cmdline_mode - reads the user's cmdline mode 810eaf99c74SChris Wilson * @connector: connector to quwery 811eaf99c74SChris Wilson * 812eaf99c74SChris Wilson * The kernel supports per-connector configration of its consoles through 813eaf99c74SChris Wilson * use of the video= parameter. This function parses that option and 814eaf99c74SChris Wilson * extracts the user's specified mode (or enable/disable status) for a 815eaf99c74SChris Wilson * particular connector. This is typically only used during the early fbdev 816eaf99c74SChris Wilson * setup. 817eaf99c74SChris Wilson */ 818eaf99c74SChris Wilson static void drm_connector_get_cmdline_mode(struct drm_connector *connector) 819eaf99c74SChris Wilson { 820eaf99c74SChris Wilson struct drm_cmdline_mode *mode = &connector->cmdline_mode; 821eaf99c74SChris Wilson char *option = NULL; 822eaf99c74SChris Wilson 823eaf99c74SChris Wilson if (fb_get_options(connector->name, &option)) 824eaf99c74SChris Wilson return; 825eaf99c74SChris Wilson 826eaf99c74SChris Wilson if (!drm_mode_parse_command_line_for_connector(option, 827eaf99c74SChris Wilson connector, 828eaf99c74SChris Wilson mode)) 829eaf99c74SChris Wilson return; 830eaf99c74SChris Wilson 831eaf99c74SChris Wilson if (mode->force) { 832eaf99c74SChris Wilson const char *s; 833eaf99c74SChris Wilson 834eaf99c74SChris Wilson switch (mode->force) { 835eaf99c74SChris Wilson case DRM_FORCE_OFF: 836eaf99c74SChris Wilson s = "OFF"; 837eaf99c74SChris Wilson break; 838eaf99c74SChris Wilson case DRM_FORCE_ON_DIGITAL: 839eaf99c74SChris Wilson s = "ON - dig"; 840eaf99c74SChris Wilson break; 841eaf99c74SChris Wilson default: 842eaf99c74SChris Wilson case DRM_FORCE_ON: 843eaf99c74SChris Wilson s = "ON"; 844eaf99c74SChris Wilson break; 845eaf99c74SChris Wilson } 846eaf99c74SChris Wilson 847eaf99c74SChris Wilson DRM_INFO("forcing %s connector %s\n", connector->name, s); 848eaf99c74SChris Wilson connector->force = mode->force; 849eaf99c74SChris Wilson } 850eaf99c74SChris Wilson 851eaf99c74SChris Wilson DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", 852eaf99c74SChris Wilson connector->name, 853eaf99c74SChris Wilson mode->xres, mode->yres, 854eaf99c74SChris Wilson mode->refresh_specified ? mode->refresh : 60, 855eaf99c74SChris Wilson mode->rb ? " reduced blanking" : "", 856eaf99c74SChris Wilson mode->margins ? " with margins" : "", 857eaf99c74SChris Wilson mode->interlace ? " interlaced" : ""); 858eaf99c74SChris Wilson } 859eaf99c74SChris Wilson 860eaf99c74SChris Wilson /** 861f453ba04SDave Airlie * drm_connector_init - Init a preallocated connector 862f453ba04SDave Airlie * @dev: DRM device 863f453ba04SDave Airlie * @connector: the connector to init 864f453ba04SDave Airlie * @funcs: callbacks for this connector 865065a50edSDaniel Vetter * @connector_type: user visible type of the connector 866f453ba04SDave Airlie * 867f453ba04SDave Airlie * Initialises a preallocated connector. Connectors should be 868f453ba04SDave Airlie * subclassed as part of driver connector objects. 8696bfc56aaSVille Syrjälä * 870c8e32cc1SDaniel Vetter * Returns: 8716bfc56aaSVille Syrjälä * Zero on success, error code on failure. 872f453ba04SDave Airlie */ 8736bfc56aaSVille Syrjälä int drm_connector_init(struct drm_device *dev, 874f453ba04SDave Airlie struct drm_connector *connector, 875f453ba04SDave Airlie const struct drm_connector_funcs *funcs, 876f453ba04SDave Airlie int connector_type) 877f453ba04SDave Airlie { 878ae16c597SRob Clark struct drm_mode_config *config = &dev->mode_config; 8796bfc56aaSVille Syrjälä int ret; 880b21e3afeSIlia Mirkin struct ida *connector_ida = 881b21e3afeSIlia Mirkin &drm_connector_enum_list[connector_type].ida; 8826bfc56aaSVille Syrjälä 88384849903SDaniel Vetter drm_modeset_lock_all(dev); 884f453ba04SDave Airlie 8852ee39452SDave Airlie ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); 8866bfc56aaSVille Syrjälä if (ret) 8872abdd313SJani Nikula goto out_unlock; 8886bfc56aaSVille Syrjälä 8897e3bdf4aSPaulo Zanoni connector->base.properties = &connector->properties; 890f453ba04SDave Airlie connector->dev = dev; 891f453ba04SDave Airlie connector->funcs = funcs; 892f453ba04SDave Airlie connector->connector_type = connector_type; 893f453ba04SDave Airlie connector->connector_type_id = 894b21e3afeSIlia Mirkin ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); 895b21e3afeSIlia Mirkin if (connector->connector_type_id < 0) { 896b21e3afeSIlia Mirkin ret = connector->connector_type_id; 8972abdd313SJani Nikula goto out_put; 898b21e3afeSIlia Mirkin } 8992abdd313SJani Nikula connector->name = 9002abdd313SJani Nikula kasprintf(GFP_KERNEL, "%s-%d", 9012abdd313SJani Nikula drm_connector_enum_list[connector_type].name, 9022abdd313SJani Nikula connector->connector_type_id); 9032abdd313SJani Nikula if (!connector->name) { 9042abdd313SJani Nikula ret = -ENOMEM; 9052abdd313SJani Nikula goto out_put; 9062abdd313SJani Nikula } 9072abdd313SJani Nikula 908f453ba04SDave Airlie INIT_LIST_HEAD(&connector->probed_modes); 909f453ba04SDave Airlie INIT_LIST_HEAD(&connector->modes); 910f453ba04SDave Airlie connector->edid_blob_ptr = NULL; 9115e2cb2f6SDaniel Vetter connector->status = connector_status_unknown; 912f453ba04SDave Airlie 913eaf99c74SChris Wilson drm_connector_get_cmdline_mode(connector); 914eaf99c74SChris Wilson 915c7eb76f4SDaniel Vetter /* We should add connectors at the end to avoid upsetting the connector 916c7eb76f4SDaniel Vetter * index too much. */ 917ae16c597SRob Clark list_add_tail(&connector->head, &config->connector_list); 918ae16c597SRob Clark config->num_connector++; 919f453ba04SDave Airlie 920a7331e5cSThomas Hellstrom if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) 92158495563SRob Clark drm_object_attach_property(&connector->base, 922ae16c597SRob Clark config->edid_property, 923a7331e5cSThomas Hellstrom 0); 924f453ba04SDave Airlie 92558495563SRob Clark drm_object_attach_property(&connector->base, 926ae16c597SRob Clark config->dpms_property, 0); 927ae16c597SRob Clark 928ae16c597SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 929ae16c597SRob Clark drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); 930ae16c597SRob Clark } 931f453ba04SDave Airlie 93230f65707SThomas Wood connector->debugfs_entry = NULL; 93330f65707SThomas Wood 9342abdd313SJani Nikula out_put: 9352abdd313SJani Nikula if (ret) 9362abdd313SJani Nikula drm_mode_object_put(dev, &connector->base); 9372abdd313SJani Nikula 9382abdd313SJani Nikula out_unlock: 93984849903SDaniel Vetter drm_modeset_unlock_all(dev); 9406bfc56aaSVille Syrjälä 9416bfc56aaSVille Syrjälä return ret; 942f453ba04SDave Airlie } 943f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_init); 944f453ba04SDave Airlie 945f453ba04SDave Airlie /** 946f453ba04SDave Airlie * drm_connector_cleanup - cleans up an initialised connector 947f453ba04SDave Airlie * @connector: connector to cleanup 948f453ba04SDave Airlie * 949f453ba04SDave Airlie * Cleans up the connector but doesn't free the object. 950f453ba04SDave Airlie */ 951f453ba04SDave Airlie void drm_connector_cleanup(struct drm_connector *connector) 952f453ba04SDave Airlie { 953f453ba04SDave Airlie struct drm_device *dev = connector->dev; 954f453ba04SDave Airlie struct drm_display_mode *mode, *t; 955f453ba04SDave Airlie 95640d9b043SDave Airlie if (connector->tile_group) { 95740d9b043SDave Airlie drm_mode_put_tile_group(dev, connector->tile_group); 95840d9b043SDave Airlie connector->tile_group = NULL; 95940d9b043SDave Airlie } 96040d9b043SDave Airlie 961f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 962f453ba04SDave Airlie drm_mode_remove(connector, mode); 963f453ba04SDave Airlie 964f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->modes, head) 965f453ba04SDave Airlie drm_mode_remove(connector, mode); 966f453ba04SDave Airlie 967b21e3afeSIlia Mirkin ida_remove(&drm_connector_enum_list[connector->connector_type].ida, 968b21e3afeSIlia Mirkin connector->connector_type_id); 969b21e3afeSIlia Mirkin 970b5571e9dSBoris Brezillon kfree(connector->display_info.bus_formats); 971f453ba04SDave Airlie drm_mode_object_put(dev, &connector->base); 9722abdd313SJani Nikula kfree(connector->name); 9732abdd313SJani Nikula connector->name = NULL; 974f453ba04SDave Airlie list_del(&connector->head); 9756380c509SJoonyoung Shim dev->mode_config.num_connector--; 9763009c037SThierry Reding 9773009c037SThierry Reding WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); 9783009c037SThierry Reding if (connector->state && connector->funcs->atomic_destroy_state) 9793009c037SThierry Reding connector->funcs->atomic_destroy_state(connector, 9803009c037SThierry Reding connector->state); 981a18c0af1SThierry Reding 982a18c0af1SThierry Reding memset(connector, 0, sizeof(*connector)); 983f453ba04SDave Airlie } 984f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_cleanup); 985f453ba04SDave Airlie 986c8e32cc1SDaniel Vetter /** 98710f637bfSDaniel Vetter * drm_connector_index - find the index of a registered connector 98810f637bfSDaniel Vetter * @connector: connector to find index for 98910f637bfSDaniel Vetter * 99010f637bfSDaniel Vetter * Given a registered connector, return the index of that connector within a DRM 99110f637bfSDaniel Vetter * device's list of connectors. 99210f637bfSDaniel Vetter */ 99310f637bfSDaniel Vetter unsigned int drm_connector_index(struct drm_connector *connector) 99410f637bfSDaniel Vetter { 99510f637bfSDaniel Vetter unsigned int index = 0; 99610f637bfSDaniel Vetter struct drm_connector *tmp; 997c7eb76f4SDaniel Vetter struct drm_mode_config *config = &connector->dev->mode_config; 998c7eb76f4SDaniel Vetter 999c7eb76f4SDaniel Vetter WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); 100010f637bfSDaniel Vetter 10019a9f5ce8SDaniel Vetter drm_for_each_connector(tmp, connector->dev) { 100210f637bfSDaniel Vetter if (tmp == connector) 100310f637bfSDaniel Vetter return index; 100410f637bfSDaniel Vetter 100510f637bfSDaniel Vetter index++; 100610f637bfSDaniel Vetter } 100710f637bfSDaniel Vetter 100810f637bfSDaniel Vetter BUG(); 100910f637bfSDaniel Vetter } 101010f637bfSDaniel Vetter EXPORT_SYMBOL(drm_connector_index); 101110f637bfSDaniel Vetter 101210f637bfSDaniel Vetter /** 101334ea3d38SThomas Wood * drm_connector_register - register a connector 101434ea3d38SThomas Wood * @connector: the connector to register 101534ea3d38SThomas Wood * 101634ea3d38SThomas Wood * Register userspace interfaces for a connector 101734ea3d38SThomas Wood * 101834ea3d38SThomas Wood * Returns: 101934ea3d38SThomas Wood * Zero on success, error code on failure. 102034ea3d38SThomas Wood */ 102134ea3d38SThomas Wood int drm_connector_register(struct drm_connector *connector) 102234ea3d38SThomas Wood { 102330f65707SThomas Wood int ret; 102430f65707SThomas Wood 10252ee39452SDave Airlie drm_mode_object_register(connector->dev, &connector->base); 10262ee39452SDave Airlie 102730f65707SThomas Wood ret = drm_sysfs_connector_add(connector); 102830f65707SThomas Wood if (ret) 102930f65707SThomas Wood return ret; 103030f65707SThomas Wood 103130f65707SThomas Wood ret = drm_debugfs_connector_add(connector); 103230f65707SThomas Wood if (ret) { 103330f65707SThomas Wood drm_sysfs_connector_remove(connector); 103430f65707SThomas Wood return ret; 103530f65707SThomas Wood } 103630f65707SThomas Wood 103730f65707SThomas Wood return 0; 103834ea3d38SThomas Wood } 103934ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_register); 104034ea3d38SThomas Wood 104134ea3d38SThomas Wood /** 104234ea3d38SThomas Wood * drm_connector_unregister - unregister a connector 104334ea3d38SThomas Wood * @connector: the connector to unregister 104434ea3d38SThomas Wood * 104534ea3d38SThomas Wood * Unregister userspace interfaces for a connector 104634ea3d38SThomas Wood */ 104734ea3d38SThomas Wood void drm_connector_unregister(struct drm_connector *connector) 104834ea3d38SThomas Wood { 104934ea3d38SThomas Wood drm_sysfs_connector_remove(connector); 105030f65707SThomas Wood drm_debugfs_connector_remove(connector); 105134ea3d38SThomas Wood } 105234ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_unregister); 105334ea3d38SThomas Wood 105434ea3d38SThomas Wood 105534ea3d38SThomas Wood /** 1056c8e32cc1SDaniel Vetter * drm_connector_unplug_all - unregister connector userspace interfaces 1057c8e32cc1SDaniel Vetter * @dev: drm device 1058c8e32cc1SDaniel Vetter * 1059c8e32cc1SDaniel Vetter * This function unregisters all connector userspace interfaces in sysfs. Should 1060c8e32cc1SDaniel Vetter * be call when the device is disconnected, e.g. from an usb driver's 1061c8e32cc1SDaniel Vetter * ->disconnect callback. 1062c8e32cc1SDaniel Vetter */ 1063cbc7e221SDave Airlie void drm_connector_unplug_all(struct drm_device *dev) 1064cbc7e221SDave Airlie { 1065cbc7e221SDave Airlie struct drm_connector *connector; 1066cbc7e221SDave Airlie 10679a9f5ce8SDaniel Vetter /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ 1068cbc7e221SDave Airlie list_for_each_entry(connector, &dev->mode_config.connector_list, head) 106934ea3d38SThomas Wood drm_connector_unregister(connector); 1070cbc7e221SDave Airlie 1071cbc7e221SDave Airlie } 1072cbc7e221SDave Airlie EXPORT_SYMBOL(drm_connector_unplug_all); 1073cbc7e221SDave Airlie 1074c8e32cc1SDaniel Vetter /** 1075c8e32cc1SDaniel Vetter * drm_encoder_init - Init a preallocated encoder 1076c8e32cc1SDaniel Vetter * @dev: drm device 1077c8e32cc1SDaniel Vetter * @encoder: the encoder to init 1078c8e32cc1SDaniel Vetter * @funcs: callbacks for this encoder 1079c8e32cc1SDaniel Vetter * @encoder_type: user visible type of the encoder 1080c8e32cc1SDaniel Vetter * 1081c8e32cc1SDaniel Vetter * Initialises a preallocated encoder. Encoder should be 1082c8e32cc1SDaniel Vetter * subclassed as part of driver encoder objects. 1083c8e32cc1SDaniel Vetter * 1084c8e32cc1SDaniel Vetter * Returns: 1085c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 1086c8e32cc1SDaniel Vetter */ 10876bfc56aaSVille Syrjälä int drm_encoder_init(struct drm_device *dev, 1088f453ba04SDave Airlie struct drm_encoder *encoder, 1089f453ba04SDave Airlie const struct drm_encoder_funcs *funcs, 1090f453ba04SDave Airlie int encoder_type) 1091f453ba04SDave Airlie { 10926bfc56aaSVille Syrjälä int ret; 10936bfc56aaSVille Syrjälä 109484849903SDaniel Vetter drm_modeset_lock_all(dev); 1095f453ba04SDave Airlie 10966bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); 10976bfc56aaSVille Syrjälä if (ret) 1098e5748946SJani Nikula goto out_unlock; 1099f453ba04SDave Airlie 11006bfc56aaSVille Syrjälä encoder->dev = dev; 1101f453ba04SDave Airlie encoder->encoder_type = encoder_type; 1102f453ba04SDave Airlie encoder->funcs = funcs; 1103e5748946SJani Nikula encoder->name = kasprintf(GFP_KERNEL, "%s-%d", 1104e5748946SJani Nikula drm_encoder_enum_list[encoder_type].name, 1105e5748946SJani Nikula encoder->base.id); 1106e5748946SJani Nikula if (!encoder->name) { 1107e5748946SJani Nikula ret = -ENOMEM; 1108e5748946SJani Nikula goto out_put; 1109e5748946SJani Nikula } 1110f453ba04SDave Airlie 1111f453ba04SDave Airlie list_add_tail(&encoder->head, &dev->mode_config.encoder_list); 1112f453ba04SDave Airlie dev->mode_config.num_encoder++; 1113f453ba04SDave Airlie 1114e5748946SJani Nikula out_put: 1115e5748946SJani Nikula if (ret) 1116e5748946SJani Nikula drm_mode_object_put(dev, &encoder->base); 1117e5748946SJani Nikula 1118e5748946SJani Nikula out_unlock: 111984849903SDaniel Vetter drm_modeset_unlock_all(dev); 11206bfc56aaSVille Syrjälä 11216bfc56aaSVille Syrjälä return ret; 1122f453ba04SDave Airlie } 1123f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_init); 1124f453ba04SDave Airlie 1125c8e32cc1SDaniel Vetter /** 1126c8e32cc1SDaniel Vetter * drm_encoder_cleanup - cleans up an initialised encoder 1127c8e32cc1SDaniel Vetter * @encoder: encoder to cleanup 1128c8e32cc1SDaniel Vetter * 1129c8e32cc1SDaniel Vetter * Cleans up the encoder but doesn't free the object. 1130c8e32cc1SDaniel Vetter */ 1131f453ba04SDave Airlie void drm_encoder_cleanup(struct drm_encoder *encoder) 1132f453ba04SDave Airlie { 1133f453ba04SDave Airlie struct drm_device *dev = encoder->dev; 11344dfd909fSThierry Reding 113584849903SDaniel Vetter drm_modeset_lock_all(dev); 1136f453ba04SDave Airlie drm_mode_object_put(dev, &encoder->base); 1137e5748946SJani Nikula kfree(encoder->name); 1138f453ba04SDave Airlie list_del(&encoder->head); 11396380c509SJoonyoung Shim dev->mode_config.num_encoder--; 114084849903SDaniel Vetter drm_modeset_unlock_all(dev); 1141a18c0af1SThierry Reding 1142a18c0af1SThierry Reding memset(encoder, 0, sizeof(*encoder)); 1143f453ba04SDave Airlie } 1144f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_cleanup); 1145f453ba04SDave Airlie 114635f2c3aeSVille Syrjälä /** 1147dc415ff9SMatt Roper * drm_universal_plane_init - Initialize a new universal plane object 114835f2c3aeSVille Syrjälä * @dev: DRM device 114935f2c3aeSVille Syrjälä * @plane: plane object to init 115035f2c3aeSVille Syrjälä * @possible_crtcs: bitmask of possible CRTCs 115135f2c3aeSVille Syrjälä * @funcs: callbacks for the new plane 115235f2c3aeSVille Syrjälä * @formats: array of supported formats (%DRM_FORMAT_*) 115335f2c3aeSVille Syrjälä * @format_count: number of elements in @formats 1154dc415ff9SMatt Roper * @type: type of plane (overlay, primary, cursor) 115535f2c3aeSVille Syrjälä * 1156dc415ff9SMatt Roper * Initializes a plane object of type @type. 115735f2c3aeSVille Syrjälä * 1158c8e32cc1SDaniel Vetter * Returns: 115935f2c3aeSVille Syrjälä * Zero on success, error code on failure. 116035f2c3aeSVille Syrjälä */ 1161dc415ff9SMatt Roper int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, 11628cf5c917SJesse Barnes unsigned long possible_crtcs, 11638cf5c917SJesse Barnes const struct drm_plane_funcs *funcs, 116445e3743aSThierry Reding const uint32_t *formats, unsigned int format_count, 1165dc415ff9SMatt Roper enum drm_plane_type type) 11668cf5c917SJesse Barnes { 11676b4959f4SRob Clark struct drm_mode_config *config = &dev->mode_config; 11686bfc56aaSVille Syrjälä int ret; 11696bfc56aaSVille Syrjälä 11706bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); 11716bfc56aaSVille Syrjälä if (ret) 1172baf698b0SDaniel Vetter return ret; 11736bfc56aaSVille Syrjälä 11744d02e2deSDaniel Vetter drm_modeset_lock_init(&plane->mutex); 11754d02e2deSDaniel Vetter 11764d93914aSRob Clark plane->base.properties = &plane->properties; 11778cf5c917SJesse Barnes plane->dev = dev; 11788cf5c917SJesse Barnes plane->funcs = funcs; 11792f6c5389SThierry Reding plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), 11808cf5c917SJesse Barnes GFP_KERNEL); 11818cf5c917SJesse Barnes if (!plane->format_types) { 11828cf5c917SJesse Barnes DRM_DEBUG_KMS("out of memory when allocating plane\n"); 11838cf5c917SJesse Barnes drm_mode_object_put(dev, &plane->base); 1184baf698b0SDaniel Vetter return -ENOMEM; 11858cf5c917SJesse Barnes } 11868cf5c917SJesse Barnes 1187308e5bcbSJesse Barnes memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); 11888cf5c917SJesse Barnes plane->format_count = format_count; 11898cf5c917SJesse Barnes plane->possible_crtcs = possible_crtcs; 1190dc415ff9SMatt Roper plane->type = type; 11918cf5c917SJesse Barnes 11926b4959f4SRob Clark list_add_tail(&plane->head, &config->plane_list); 11936b4959f4SRob Clark config->num_total_plane++; 1194e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 11956b4959f4SRob Clark config->num_overlay_plane++; 11968cf5c917SJesse Barnes 11979922ab5aSRob Clark drm_object_attach_property(&plane->base, 11986b4959f4SRob Clark config->plane_type_property, 11999922ab5aSRob Clark plane->type); 12009922ab5aSRob Clark 12016b4959f4SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 12026b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_fb_id, 0); 12036b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); 12046b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); 12056b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); 12066b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); 12076b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); 12086b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_x, 0); 12096b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_y, 0); 12106b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_w, 0); 12116b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_h, 0); 12126b4959f4SRob Clark } 12136b4959f4SRob Clark 1214baf698b0SDaniel Vetter return 0; 12158cf5c917SJesse Barnes } 1216dc415ff9SMatt Roper EXPORT_SYMBOL(drm_universal_plane_init); 1217dc415ff9SMatt Roper 1218dc415ff9SMatt Roper /** 1219dc415ff9SMatt Roper * drm_plane_init - Initialize a legacy plane 1220dc415ff9SMatt Roper * @dev: DRM device 1221dc415ff9SMatt Roper * @plane: plane object to init 1222dc415ff9SMatt Roper * @possible_crtcs: bitmask of possible CRTCs 1223dc415ff9SMatt Roper * @funcs: callbacks for the new plane 1224dc415ff9SMatt Roper * @formats: array of supported formats (%DRM_FORMAT_*) 1225dc415ff9SMatt Roper * @format_count: number of elements in @formats 1226dc415ff9SMatt Roper * @is_primary: plane type (primary vs overlay) 1227dc415ff9SMatt Roper * 1228dc415ff9SMatt Roper * Legacy API to initialize a DRM plane. 1229dc415ff9SMatt Roper * 1230dc415ff9SMatt Roper * New drivers should call drm_universal_plane_init() instead. 1231dc415ff9SMatt Roper * 1232dc415ff9SMatt Roper * Returns: 1233dc415ff9SMatt Roper * Zero on success, error code on failure. 1234dc415ff9SMatt Roper */ 1235dc415ff9SMatt Roper int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, 1236dc415ff9SMatt Roper unsigned long possible_crtcs, 1237dc415ff9SMatt Roper const struct drm_plane_funcs *funcs, 123845e3743aSThierry Reding const uint32_t *formats, unsigned int format_count, 1239dc415ff9SMatt Roper bool is_primary) 1240dc415ff9SMatt Roper { 1241dc415ff9SMatt Roper enum drm_plane_type type; 1242dc415ff9SMatt Roper 1243dc415ff9SMatt Roper type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; 1244dc415ff9SMatt Roper return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, 1245dc415ff9SMatt Roper formats, format_count, type); 1246dc415ff9SMatt Roper } 12478cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_init); 12488cf5c917SJesse Barnes 124935f2c3aeSVille Syrjälä /** 125035f2c3aeSVille Syrjälä * drm_plane_cleanup - Clean up the core plane usage 125135f2c3aeSVille Syrjälä * @plane: plane to cleanup 125235f2c3aeSVille Syrjälä * 125335f2c3aeSVille Syrjälä * This function cleans up @plane and removes it from the DRM mode setting 125435f2c3aeSVille Syrjälä * core. Note that the function does *not* free the plane structure itself, 125535f2c3aeSVille Syrjälä * this is the responsibility of the caller. 125635f2c3aeSVille Syrjälä */ 12578cf5c917SJesse Barnes void drm_plane_cleanup(struct drm_plane *plane) 12588cf5c917SJesse Barnes { 12598cf5c917SJesse Barnes struct drm_device *dev = plane->dev; 12608cf5c917SJesse Barnes 126184849903SDaniel Vetter drm_modeset_lock_all(dev); 12628cf5c917SJesse Barnes kfree(plane->format_types); 12638cf5c917SJesse Barnes drm_mode_object_put(dev, &plane->base); 1264dc415ff9SMatt Roper 1265dc415ff9SMatt Roper BUG_ON(list_empty(&plane->head)); 1266dc415ff9SMatt Roper 12678cf5c917SJesse Barnes list_del(&plane->head); 1268e27dde3eSMatt Roper dev->mode_config.num_total_plane--; 1269e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 1270e27dde3eSMatt Roper dev->mode_config.num_overlay_plane--; 127184849903SDaniel Vetter drm_modeset_unlock_all(dev); 12723009c037SThierry Reding 12733009c037SThierry Reding WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); 12743009c037SThierry Reding if (plane->state && plane->funcs->atomic_destroy_state) 12753009c037SThierry Reding plane->funcs->atomic_destroy_state(plane, plane->state); 1276a18c0af1SThierry Reding 1277a18c0af1SThierry Reding memset(plane, 0, sizeof(*plane)); 12788cf5c917SJesse Barnes } 12798cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_cleanup); 12808cf5c917SJesse Barnes 128135f2c3aeSVille Syrjälä /** 128210f637bfSDaniel Vetter * drm_plane_index - find the index of a registered plane 128310f637bfSDaniel Vetter * @plane: plane to find index for 128410f637bfSDaniel Vetter * 128510f637bfSDaniel Vetter * Given a registered plane, return the index of that CRTC within a DRM 128610f637bfSDaniel Vetter * device's list of planes. 128710f637bfSDaniel Vetter */ 128810f637bfSDaniel Vetter unsigned int drm_plane_index(struct drm_plane *plane) 128910f637bfSDaniel Vetter { 129010f637bfSDaniel Vetter unsigned int index = 0; 129110f637bfSDaniel Vetter struct drm_plane *tmp; 129210f637bfSDaniel Vetter 1293e4f62546SDaniel Vetter drm_for_each_plane(tmp, plane->dev) { 129410f637bfSDaniel Vetter if (tmp == plane) 129510f637bfSDaniel Vetter return index; 129610f637bfSDaniel Vetter 129710f637bfSDaniel Vetter index++; 129810f637bfSDaniel Vetter } 129910f637bfSDaniel Vetter 130010f637bfSDaniel Vetter BUG(); 130110f637bfSDaniel Vetter } 130210f637bfSDaniel Vetter EXPORT_SYMBOL(drm_plane_index); 130310f637bfSDaniel Vetter 130410f637bfSDaniel Vetter /** 1305f81338a5SChandra Konduru * drm_plane_from_index - find the registered plane at an index 1306f81338a5SChandra Konduru * @dev: DRM device 1307f81338a5SChandra Konduru * @idx: index of registered plane to find for 1308f81338a5SChandra Konduru * 1309f81338a5SChandra Konduru * Given a plane index, return the registered plane from DRM device's 1310f81338a5SChandra Konduru * list of planes with matching index. 1311f81338a5SChandra Konduru */ 1312f81338a5SChandra Konduru struct drm_plane * 1313f81338a5SChandra Konduru drm_plane_from_index(struct drm_device *dev, int idx) 1314f81338a5SChandra Konduru { 1315f81338a5SChandra Konduru struct drm_plane *plane; 1316f81338a5SChandra Konduru unsigned int i = 0; 1317f81338a5SChandra Konduru 13186295d607SDaniel Vetter drm_for_each_plane(plane, dev) { 1319f81338a5SChandra Konduru if (i == idx) 1320f81338a5SChandra Konduru return plane; 1321f81338a5SChandra Konduru i++; 1322f81338a5SChandra Konduru } 1323f81338a5SChandra Konduru return NULL; 1324f81338a5SChandra Konduru } 1325f81338a5SChandra Konduru EXPORT_SYMBOL(drm_plane_from_index); 1326f81338a5SChandra Konduru 1327f81338a5SChandra Konduru /** 132835f2c3aeSVille Syrjälä * drm_plane_force_disable - Forcibly disable a plane 132935f2c3aeSVille Syrjälä * @plane: plane to disable 133035f2c3aeSVille Syrjälä * 133135f2c3aeSVille Syrjälä * Forces the plane to be disabled. 133235f2c3aeSVille Syrjälä * 133335f2c3aeSVille Syrjälä * Used when the plane's current framebuffer is destroyed, 133435f2c3aeSVille Syrjälä * and when restoring fbdev mode. 133535f2c3aeSVille Syrjälä */ 13369125e618SVille Syrjälä void drm_plane_force_disable(struct drm_plane *plane) 13379125e618SVille Syrjälä { 13389125e618SVille Syrjälä int ret; 13399125e618SVille Syrjälä 13403d30a59bSDaniel Vetter if (!plane->fb) 13419125e618SVille Syrjälä return; 13429125e618SVille Syrjälä 13433d30a59bSDaniel Vetter plane->old_fb = plane->fb; 13449125e618SVille Syrjälä ret = plane->funcs->disable_plane(plane); 1345731cce48SDaniel Vetter if (ret) { 13469125e618SVille Syrjälä DRM_ERROR("failed to disable plane with busy fb\n"); 13473d30a59bSDaniel Vetter plane->old_fb = NULL; 1348731cce48SDaniel Vetter return; 1349731cce48SDaniel Vetter } 13509125e618SVille Syrjälä /* disconnect the plane from the fb and crtc: */ 1351220dd2bcSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 13523d30a59bSDaniel Vetter plane->old_fb = NULL; 13539125e618SVille Syrjälä plane->fb = NULL; 13549125e618SVille Syrjälä plane->crtc = NULL; 13559125e618SVille Syrjälä } 13569125e618SVille Syrjälä EXPORT_SYMBOL(drm_plane_force_disable); 13579125e618SVille Syrjälä 13586b4959f4SRob Clark static int drm_mode_create_standard_properties(struct drm_device *dev) 1359f453ba04SDave Airlie { 1360356af0e1SRob Clark struct drm_property *prop; 1361f453ba04SDave Airlie 1362f453ba04SDave Airlie /* 1363f453ba04SDave Airlie * Standard properties (apply to all connectors) 1364f453ba04SDave Airlie */ 1365356af0e1SRob Clark prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | 1366f453ba04SDave Airlie DRM_MODE_PROP_IMMUTABLE, 1367f453ba04SDave Airlie "EDID", 0); 1368356af0e1SRob Clark if (!prop) 1369356af0e1SRob Clark return -ENOMEM; 1370356af0e1SRob Clark dev->mode_config.edid_property = prop; 1371f453ba04SDave Airlie 1372356af0e1SRob Clark prop = drm_property_create_enum(dev, 0, 13734a67d391SSascha Hauer "DPMS", drm_dpms_enum_list, 13744a67d391SSascha Hauer ARRAY_SIZE(drm_dpms_enum_list)); 1375356af0e1SRob Clark if (!prop) 1376356af0e1SRob Clark return -ENOMEM; 1377356af0e1SRob Clark dev->mode_config.dpms_property = prop; 1378f453ba04SDave Airlie 1379356af0e1SRob Clark prop = drm_property_create(dev, 138043aba7ebSDave Airlie DRM_MODE_PROP_BLOB | 138143aba7ebSDave Airlie DRM_MODE_PROP_IMMUTABLE, 138243aba7ebSDave Airlie "PATH", 0); 1383356af0e1SRob Clark if (!prop) 1384356af0e1SRob Clark return -ENOMEM; 1385356af0e1SRob Clark dev->mode_config.path_property = prop; 138643aba7ebSDave Airlie 1387356af0e1SRob Clark prop = drm_property_create(dev, 13886f134d7bSDave Airlie DRM_MODE_PROP_BLOB | 13896f134d7bSDave Airlie DRM_MODE_PROP_IMMUTABLE, 13906f134d7bSDave Airlie "TILE", 0); 1391356af0e1SRob Clark if (!prop) 1392356af0e1SRob Clark return -ENOMEM; 1393356af0e1SRob Clark dev->mode_config.tile_property = prop; 13946f134d7bSDave Airlie 13956b4959f4SRob Clark prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 13969922ab5aSRob Clark "type", drm_plane_type_enum_list, 13979922ab5aSRob Clark ARRAY_SIZE(drm_plane_type_enum_list)); 13986b4959f4SRob Clark if (!prop) 13996b4959f4SRob Clark return -ENOMEM; 14006b4959f4SRob Clark dev->mode_config.plane_type_property = prop; 14016b4959f4SRob Clark 14026b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14036b4959f4SRob Clark "SRC_X", 0, UINT_MAX); 14046b4959f4SRob Clark if (!prop) 14056b4959f4SRob Clark return -ENOMEM; 14066b4959f4SRob Clark dev->mode_config.prop_src_x = prop; 14076b4959f4SRob Clark 14086b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14096b4959f4SRob Clark "SRC_Y", 0, UINT_MAX); 14106b4959f4SRob Clark if (!prop) 14116b4959f4SRob Clark return -ENOMEM; 14126b4959f4SRob Clark dev->mode_config.prop_src_y = prop; 14136b4959f4SRob Clark 14146b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14156b4959f4SRob Clark "SRC_W", 0, UINT_MAX); 14166b4959f4SRob Clark if (!prop) 14176b4959f4SRob Clark return -ENOMEM; 14186b4959f4SRob Clark dev->mode_config.prop_src_w = prop; 14196b4959f4SRob Clark 14206b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14216b4959f4SRob Clark "SRC_H", 0, UINT_MAX); 14226b4959f4SRob Clark if (!prop) 14236b4959f4SRob Clark return -ENOMEM; 14246b4959f4SRob Clark dev->mode_config.prop_src_h = prop; 14256b4959f4SRob Clark 14266b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 14276b4959f4SRob Clark "CRTC_X", INT_MIN, INT_MAX); 14286b4959f4SRob Clark if (!prop) 14296b4959f4SRob Clark return -ENOMEM; 14306b4959f4SRob Clark dev->mode_config.prop_crtc_x = prop; 14316b4959f4SRob Clark 14326b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 14336b4959f4SRob Clark "CRTC_Y", INT_MIN, INT_MAX); 14346b4959f4SRob Clark if (!prop) 14356b4959f4SRob Clark return -ENOMEM; 14366b4959f4SRob Clark dev->mode_config.prop_crtc_y = prop; 14376b4959f4SRob Clark 14386b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14396b4959f4SRob Clark "CRTC_W", 0, INT_MAX); 14406b4959f4SRob Clark if (!prop) 14416b4959f4SRob Clark return -ENOMEM; 14426b4959f4SRob Clark dev->mode_config.prop_crtc_w = prop; 14436b4959f4SRob Clark 14446b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14456b4959f4SRob Clark "CRTC_H", 0, INT_MAX); 14466b4959f4SRob Clark if (!prop) 14476b4959f4SRob Clark return -ENOMEM; 14486b4959f4SRob Clark dev->mode_config.prop_crtc_h = prop; 14496b4959f4SRob Clark 14506b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 14516b4959f4SRob Clark "FB_ID", DRM_MODE_OBJECT_FB); 14526b4959f4SRob Clark if (!prop) 14536b4959f4SRob Clark return -ENOMEM; 14546b4959f4SRob Clark dev->mode_config.prop_fb_id = prop; 14556b4959f4SRob Clark 14566b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 14576b4959f4SRob Clark "CRTC_ID", DRM_MODE_OBJECT_CRTC); 14586b4959f4SRob Clark if (!prop) 14596b4959f4SRob Clark return -ENOMEM; 14606b4959f4SRob Clark dev->mode_config.prop_crtc_id = prop; 14619922ab5aSRob Clark 1462eab3bbefSDaniel Vetter prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, 1463eab3bbefSDaniel Vetter "ACTIVE"); 1464eab3bbefSDaniel Vetter if (!prop) 1465eab3bbefSDaniel Vetter return -ENOMEM; 1466eab3bbefSDaniel Vetter dev->mode_config.prop_active = prop; 1467eab3bbefSDaniel Vetter 1468955f3c33SDaniel Stone prop = drm_property_create(dev, 1469955f3c33SDaniel Stone DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, 1470955f3c33SDaniel Stone "MODE_ID", 0); 1471955f3c33SDaniel Stone if (!prop) 1472955f3c33SDaniel Stone return -ENOMEM; 1473955f3c33SDaniel Stone dev->mode_config.prop_mode_id = prop; 1474955f3c33SDaniel Stone 14759922ab5aSRob Clark return 0; 14769922ab5aSRob Clark } 14779922ab5aSRob Clark 1478f453ba04SDave Airlie /** 1479f453ba04SDave Airlie * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 1480f453ba04SDave Airlie * @dev: DRM device 1481f453ba04SDave Airlie * 1482f453ba04SDave Airlie * Called by a driver the first time a DVI-I connector is made. 1483f453ba04SDave Airlie */ 1484f453ba04SDave Airlie int drm_mode_create_dvi_i_properties(struct drm_device *dev) 1485f453ba04SDave Airlie { 1486f453ba04SDave Airlie struct drm_property *dvi_i_selector; 1487f453ba04SDave Airlie struct drm_property *dvi_i_subconnector; 1488f453ba04SDave Airlie 1489f453ba04SDave Airlie if (dev->mode_config.dvi_i_select_subconnector_property) 1490f453ba04SDave Airlie return 0; 1491f453ba04SDave Airlie 1492f453ba04SDave Airlie dvi_i_selector = 14934a67d391SSascha Hauer drm_property_create_enum(dev, 0, 1494f453ba04SDave Airlie "select subconnector", 14954a67d391SSascha Hauer drm_dvi_i_select_enum_list, 1496f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_select_enum_list)); 1497f453ba04SDave Airlie dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 1498f453ba04SDave Airlie 14994a67d391SSascha Hauer dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1500f453ba04SDave Airlie "subconnector", 15014a67d391SSascha Hauer drm_dvi_i_subconnector_enum_list, 1502f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 1503f453ba04SDave Airlie dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 1504f453ba04SDave Airlie 1505f453ba04SDave Airlie return 0; 1506f453ba04SDave Airlie } 1507f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 1508f453ba04SDave Airlie 1509f453ba04SDave Airlie /** 1510f453ba04SDave Airlie * drm_create_tv_properties - create TV specific connector properties 1511f453ba04SDave Airlie * @dev: DRM device 1512f453ba04SDave Airlie * @num_modes: number of different TV formats (modes) supported 1513f453ba04SDave Airlie * @modes: array of pointers to strings containing name of each format 1514f453ba04SDave Airlie * 1515f453ba04SDave Airlie * Called by a driver's TV initialization routine, this function creates 1516f453ba04SDave Airlie * the TV specific connector properties for a given device. Caller is 1517f453ba04SDave Airlie * responsible for allocating a list of format names and passing them to 1518f453ba04SDave Airlie * this routine. 1519f453ba04SDave Airlie */ 15202f763312SThierry Reding int drm_mode_create_tv_properties(struct drm_device *dev, 15212f763312SThierry Reding unsigned int num_modes, 1522b7c914b3SVille Syrjälä const char * const modes[]) 1523f453ba04SDave Airlie { 1524f453ba04SDave Airlie struct drm_property *tv_selector; 1525f453ba04SDave Airlie struct drm_property *tv_subconnector; 15262f763312SThierry Reding unsigned int i; 1527f453ba04SDave Airlie 1528f453ba04SDave Airlie if (dev->mode_config.tv_select_subconnector_property) 1529f453ba04SDave Airlie return 0; 1530f453ba04SDave Airlie 1531f453ba04SDave Airlie /* 1532f453ba04SDave Airlie * Basic connector properties 1533f453ba04SDave Airlie */ 15344a67d391SSascha Hauer tv_selector = drm_property_create_enum(dev, 0, 1535f453ba04SDave Airlie "select subconnector", 15364a67d391SSascha Hauer drm_tv_select_enum_list, 1537f453ba04SDave Airlie ARRAY_SIZE(drm_tv_select_enum_list)); 1538f453ba04SDave Airlie dev->mode_config.tv_select_subconnector_property = tv_selector; 1539f453ba04SDave Airlie 1540f453ba04SDave Airlie tv_subconnector = 15414a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 15424a67d391SSascha Hauer "subconnector", 15434a67d391SSascha Hauer drm_tv_subconnector_enum_list, 1544f453ba04SDave Airlie ARRAY_SIZE(drm_tv_subconnector_enum_list)); 1545f453ba04SDave Airlie dev->mode_config.tv_subconnector_property = tv_subconnector; 1546f453ba04SDave Airlie 1547f453ba04SDave Airlie /* 1548f453ba04SDave Airlie * Other, TV specific properties: margins & TV modes. 1549f453ba04SDave Airlie */ 1550f453ba04SDave Airlie dev->mode_config.tv_left_margin_property = 1551d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "left margin", 0, 100); 1552f453ba04SDave Airlie 1553f453ba04SDave Airlie dev->mode_config.tv_right_margin_property = 1554d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "right margin", 0, 100); 1555f453ba04SDave Airlie 1556f453ba04SDave Airlie dev->mode_config.tv_top_margin_property = 1557d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "top margin", 0, 100); 1558f453ba04SDave Airlie 1559f453ba04SDave Airlie dev->mode_config.tv_bottom_margin_property = 1560d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "bottom margin", 0, 100); 1561f453ba04SDave Airlie 1562f453ba04SDave Airlie dev->mode_config.tv_mode_property = 1563f453ba04SDave Airlie drm_property_create(dev, DRM_MODE_PROP_ENUM, 1564f453ba04SDave Airlie "mode", num_modes); 1565f453ba04SDave Airlie for (i = 0; i < num_modes; i++) 1566f453ba04SDave Airlie drm_property_add_enum(dev->mode_config.tv_mode_property, i, 1567f453ba04SDave Airlie i, modes[i]); 1568f453ba04SDave Airlie 1569b6b7902eSFrancisco Jerez dev->mode_config.tv_brightness_property = 1570d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "brightness", 0, 100); 1571b6b7902eSFrancisco Jerez 1572b6b7902eSFrancisco Jerez dev->mode_config.tv_contrast_property = 1573d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "contrast", 0, 100); 1574b6b7902eSFrancisco Jerez 1575b6b7902eSFrancisco Jerez dev->mode_config.tv_flicker_reduction_property = 1576d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 1577b6b7902eSFrancisco Jerez 1578a75f0236SFrancisco Jerez dev->mode_config.tv_overscan_property = 1579d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "overscan", 0, 100); 1580a75f0236SFrancisco Jerez 1581a75f0236SFrancisco Jerez dev->mode_config.tv_saturation_property = 1582d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "saturation", 0, 100); 1583a75f0236SFrancisco Jerez 1584a75f0236SFrancisco Jerez dev->mode_config.tv_hue_property = 1585d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "hue", 0, 100); 1586a75f0236SFrancisco Jerez 1587f453ba04SDave Airlie return 0; 1588f453ba04SDave Airlie } 1589f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_tv_properties); 1590f453ba04SDave Airlie 1591f453ba04SDave Airlie /** 1592f453ba04SDave Airlie * drm_mode_create_scaling_mode_property - create scaling mode property 1593f453ba04SDave Airlie * @dev: DRM device 1594f453ba04SDave Airlie * 1595f453ba04SDave Airlie * Called by a driver the first time it's needed, must be attached to desired 1596f453ba04SDave Airlie * connectors. 1597f453ba04SDave Airlie */ 1598f453ba04SDave Airlie int drm_mode_create_scaling_mode_property(struct drm_device *dev) 1599f453ba04SDave Airlie { 1600f453ba04SDave Airlie struct drm_property *scaling_mode; 1601f453ba04SDave Airlie 1602f453ba04SDave Airlie if (dev->mode_config.scaling_mode_property) 1603f453ba04SDave Airlie return 0; 1604f453ba04SDave Airlie 1605f453ba04SDave Airlie scaling_mode = 16064a67d391SSascha Hauer drm_property_create_enum(dev, 0, "scaling mode", 16074a67d391SSascha Hauer drm_scaling_mode_enum_list, 1608f453ba04SDave Airlie ARRAY_SIZE(drm_scaling_mode_enum_list)); 1609f453ba04SDave Airlie 1610f453ba04SDave Airlie dev->mode_config.scaling_mode_property = scaling_mode; 1611f453ba04SDave Airlie 1612f453ba04SDave Airlie return 0; 1613f453ba04SDave Airlie } 1614f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 1615f453ba04SDave Airlie 1616f453ba04SDave Airlie /** 1617ff587e45SVandana Kannan * drm_mode_create_aspect_ratio_property - create aspect ratio property 1618ff587e45SVandana Kannan * @dev: DRM device 1619ff587e45SVandana Kannan * 1620ff587e45SVandana Kannan * Called by a driver the first time it's needed, must be attached to desired 1621ff587e45SVandana Kannan * connectors. 1622ff587e45SVandana Kannan * 1623ff587e45SVandana Kannan * Returns: 16241a498633SDaniel Vetter * Zero on success, negative errno on failure. 1625ff587e45SVandana Kannan */ 1626ff587e45SVandana Kannan int drm_mode_create_aspect_ratio_property(struct drm_device *dev) 1627ff587e45SVandana Kannan { 1628ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property) 1629ff587e45SVandana Kannan return 0; 1630ff587e45SVandana Kannan 1631ff587e45SVandana Kannan dev->mode_config.aspect_ratio_property = 1632ff587e45SVandana Kannan drm_property_create_enum(dev, 0, "aspect ratio", 1633ff587e45SVandana Kannan drm_aspect_ratio_enum_list, 1634ff587e45SVandana Kannan ARRAY_SIZE(drm_aspect_ratio_enum_list)); 1635ff587e45SVandana Kannan 1636ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property == NULL) 1637ff587e45SVandana Kannan return -ENOMEM; 1638ff587e45SVandana Kannan 1639ff587e45SVandana Kannan return 0; 1640ff587e45SVandana Kannan } 1641ff587e45SVandana Kannan EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); 1642ff587e45SVandana Kannan 1643ff587e45SVandana Kannan /** 1644884840aaSJakob Bornecrantz * drm_mode_create_dirty_property - create dirty property 1645884840aaSJakob Bornecrantz * @dev: DRM device 1646884840aaSJakob Bornecrantz * 1647884840aaSJakob Bornecrantz * Called by a driver the first time it's needed, must be attached to desired 1648884840aaSJakob Bornecrantz * connectors. 1649884840aaSJakob Bornecrantz */ 1650884840aaSJakob Bornecrantz int drm_mode_create_dirty_info_property(struct drm_device *dev) 1651884840aaSJakob Bornecrantz { 1652884840aaSJakob Bornecrantz struct drm_property *dirty_info; 1653884840aaSJakob Bornecrantz 1654884840aaSJakob Bornecrantz if (dev->mode_config.dirty_info_property) 1655884840aaSJakob Bornecrantz return 0; 1656884840aaSJakob Bornecrantz 1657884840aaSJakob Bornecrantz dirty_info = 16584a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1659884840aaSJakob Bornecrantz "dirty", 16604a67d391SSascha Hauer drm_dirty_info_enum_list, 1661884840aaSJakob Bornecrantz ARRAY_SIZE(drm_dirty_info_enum_list)); 1662884840aaSJakob Bornecrantz dev->mode_config.dirty_info_property = dirty_info; 1663884840aaSJakob Bornecrantz 1664884840aaSJakob Bornecrantz return 0; 1665884840aaSJakob Bornecrantz } 1666884840aaSJakob Bornecrantz EXPORT_SYMBOL(drm_mode_create_dirty_info_property); 1667884840aaSJakob Bornecrantz 16685bb2bbf5SDave Airlie /** 16695bb2bbf5SDave Airlie * drm_mode_create_suggested_offset_properties - create suggests offset properties 16705bb2bbf5SDave Airlie * @dev: DRM device 16715bb2bbf5SDave Airlie * 16725bb2bbf5SDave Airlie * Create the the suggested x/y offset property for connectors. 16735bb2bbf5SDave Airlie */ 16745bb2bbf5SDave Airlie int drm_mode_create_suggested_offset_properties(struct drm_device *dev) 16755bb2bbf5SDave Airlie { 16765bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) 16775bb2bbf5SDave Airlie return 0; 16785bb2bbf5SDave Airlie 16795bb2bbf5SDave Airlie dev->mode_config.suggested_x_property = 16805bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); 16815bb2bbf5SDave Airlie 16825bb2bbf5SDave Airlie dev->mode_config.suggested_y_property = 16835bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); 16845bb2bbf5SDave Airlie 16855bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property == NULL || 16865bb2bbf5SDave Airlie dev->mode_config.suggested_y_property == NULL) 16875bb2bbf5SDave Airlie return -ENOMEM; 16885bb2bbf5SDave Airlie return 0; 16895bb2bbf5SDave Airlie } 16905bb2bbf5SDave Airlie EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); 16915bb2bbf5SDave Airlie 1692f453ba04SDave Airlie /** 1693f453ba04SDave Airlie * drm_mode_getresources - get graphics configuration 1694065a50edSDaniel Vetter * @dev: drm device for the ioctl 1695065a50edSDaniel Vetter * @data: data pointer for the ioctl 1696065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1697f453ba04SDave Airlie * 1698f453ba04SDave Airlie * Construct a set of configuration description structures and return 1699f453ba04SDave Airlie * them to the user, including CRTC, connector and framebuffer configuration. 1700f453ba04SDave Airlie * 1701f453ba04SDave Airlie * Called by the user via ioctl. 1702f453ba04SDave Airlie * 1703c8e32cc1SDaniel Vetter * Returns: 17041a498633SDaniel Vetter * Zero on success, negative errno on failure. 1705f453ba04SDave Airlie */ 1706f453ba04SDave Airlie int drm_mode_getresources(struct drm_device *dev, void *data, 1707f453ba04SDave Airlie struct drm_file *file_priv) 1708f453ba04SDave Airlie { 1709f453ba04SDave Airlie struct drm_mode_card_res *card_res = data; 1710f453ba04SDave Airlie struct list_head *lh; 1711f453ba04SDave Airlie struct drm_framebuffer *fb; 1712f453ba04SDave Airlie struct drm_connector *connector; 1713f453ba04SDave Airlie struct drm_crtc *crtc; 1714f453ba04SDave Airlie struct drm_encoder *encoder; 1715f453ba04SDave Airlie int ret = 0; 1716f453ba04SDave Airlie int connector_count = 0; 1717f453ba04SDave Airlie int crtc_count = 0; 1718f453ba04SDave Airlie int fb_count = 0; 1719f453ba04SDave Airlie int encoder_count = 0; 17209c7060f7SDaniel Vetter int copied = 0; 1721f453ba04SDave Airlie uint32_t __user *fb_id; 1722f453ba04SDave Airlie uint32_t __user *crtc_id; 1723f453ba04SDave Airlie uint32_t __user *connector_id; 1724f453ba04SDave Airlie uint32_t __user *encoder_id; 1725f453ba04SDave Airlie 1726fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1727fb3b06c8SDave Airlie return -EINVAL; 1728fb3b06c8SDave Airlie 1729f453ba04SDave Airlie 17304b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 1731f453ba04SDave Airlie /* 1732f453ba04SDave Airlie * For the non-control nodes we need to limit the list of resources 1733f453ba04SDave Airlie * by IDs in the group list for this node 1734f453ba04SDave Airlie */ 1735f453ba04SDave Airlie list_for_each(lh, &file_priv->fbs) 1736f453ba04SDave Airlie fb_count++; 1737f453ba04SDave Airlie 17384b096ac1SDaniel Vetter /* handle this in 4 parts */ 17394b096ac1SDaniel Vetter /* FBs */ 17404b096ac1SDaniel Vetter if (card_res->count_fbs >= fb_count) { 17414b096ac1SDaniel Vetter copied = 0; 17424b096ac1SDaniel Vetter fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; 17434b096ac1SDaniel Vetter list_for_each_entry(fb, &file_priv->fbs, filp_head) { 17444b096ac1SDaniel Vetter if (put_user(fb->base.id, fb_id + copied)) { 17454b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 17464b096ac1SDaniel Vetter return -EFAULT; 17474b096ac1SDaniel Vetter } 17484b096ac1SDaniel Vetter copied++; 17494b096ac1SDaniel Vetter } 17504b096ac1SDaniel Vetter } 17514b096ac1SDaniel Vetter card_res->count_fbs = fb_count; 17524b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 17534b096ac1SDaniel Vetter 1754fcf93f69SDaniel Vetter /* mode_config.mutex protects the connector list against e.g. DP MST 1755fcf93f69SDaniel Vetter * connector hot-adding. CRTC/Plane lists are invariant. */ 1756fcf93f69SDaniel Vetter mutex_lock(&dev->mode_config.mutex); 1757e4f62546SDaniel Vetter drm_for_each_crtc(crtc, dev) 1758f453ba04SDave Airlie crtc_count++; 1759f453ba04SDave Airlie 17609a9f5ce8SDaniel Vetter drm_for_each_connector(connector, dev) 1761f453ba04SDave Airlie connector_count++; 1762f453ba04SDave Airlie 1763e4f62546SDaniel Vetter drm_for_each_encoder(encoder, dev) 1764f453ba04SDave Airlie encoder_count++; 1765f453ba04SDave Airlie 1766f453ba04SDave Airlie card_res->max_height = dev->mode_config.max_height; 1767f453ba04SDave Airlie card_res->min_height = dev->mode_config.min_height; 1768f453ba04SDave Airlie card_res->max_width = dev->mode_config.max_width; 1769f453ba04SDave Airlie card_res->min_width = dev->mode_config.min_width; 1770f453ba04SDave Airlie 1771f453ba04SDave Airlie /* CRTCs */ 1772f453ba04SDave Airlie if (card_res->count_crtcs >= crtc_count) { 1773f453ba04SDave Airlie copied = 0; 1774f453ba04SDave Airlie crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; 17756295d607SDaniel Vetter drm_for_each_crtc(crtc, dev) { 17769440106bSJerome Glisse DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1777f453ba04SDave Airlie if (put_user(crtc->base.id, crtc_id + copied)) { 1778f453ba04SDave Airlie ret = -EFAULT; 1779f453ba04SDave Airlie goto out; 1780f453ba04SDave Airlie } 1781f453ba04SDave Airlie copied++; 1782f453ba04SDave Airlie } 1783f453ba04SDave Airlie } 1784f453ba04SDave Airlie card_res->count_crtcs = crtc_count; 1785f453ba04SDave Airlie 1786f453ba04SDave Airlie /* Encoders */ 1787f453ba04SDave Airlie if (card_res->count_encoders >= encoder_count) { 1788f453ba04SDave Airlie copied = 0; 1789f453ba04SDave Airlie encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; 17906295d607SDaniel Vetter drm_for_each_encoder(encoder, dev) { 17919440106bSJerome Glisse DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, 179283a8cfd3SJani Nikula encoder->name); 1793f453ba04SDave Airlie if (put_user(encoder->base.id, encoder_id + 1794f453ba04SDave Airlie copied)) { 1795f453ba04SDave Airlie ret = -EFAULT; 1796f453ba04SDave Airlie goto out; 1797f453ba04SDave Airlie } 1798f453ba04SDave Airlie copied++; 1799f453ba04SDave Airlie } 1800f453ba04SDave Airlie } 1801f453ba04SDave Airlie card_res->count_encoders = encoder_count; 1802f453ba04SDave Airlie 1803f453ba04SDave Airlie /* Connectors */ 1804f453ba04SDave Airlie if (card_res->count_connectors >= connector_count) { 1805f453ba04SDave Airlie copied = 0; 1806f453ba04SDave Airlie connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; 18076295d607SDaniel Vetter drm_for_each_connector(connector, dev) { 18089440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 18099440106bSJerome Glisse connector->base.id, 181025933820SJani Nikula connector->name); 1811f453ba04SDave Airlie if (put_user(connector->base.id, 1812f453ba04SDave Airlie connector_id + copied)) { 1813f453ba04SDave Airlie ret = -EFAULT; 1814f453ba04SDave Airlie goto out; 1815f453ba04SDave Airlie } 1816f453ba04SDave Airlie copied++; 1817f453ba04SDave Airlie } 1818f453ba04SDave Airlie } 1819f453ba04SDave Airlie card_res->count_connectors = connector_count; 1820f453ba04SDave Airlie 18219440106bSJerome Glisse DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, 1822f453ba04SDave Airlie card_res->count_connectors, card_res->count_encoders); 1823f453ba04SDave Airlie 1824f453ba04SDave Airlie out: 1825fcf93f69SDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 1826f453ba04SDave Airlie return ret; 1827f453ba04SDave Airlie } 1828f453ba04SDave Airlie 1829f453ba04SDave Airlie /** 1830f453ba04SDave Airlie * drm_mode_getcrtc - get CRTC configuration 1831065a50edSDaniel Vetter * @dev: drm device for the ioctl 1832065a50edSDaniel Vetter * @data: data pointer for the ioctl 1833065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1834f453ba04SDave Airlie * 1835f453ba04SDave Airlie * Construct a CRTC configuration structure to return to the user. 1836f453ba04SDave Airlie * 1837f453ba04SDave Airlie * Called by the user via ioctl. 1838f453ba04SDave Airlie * 1839c8e32cc1SDaniel Vetter * Returns: 18401a498633SDaniel Vetter * Zero on success, negative errno on failure. 1841f453ba04SDave Airlie */ 1842f453ba04SDave Airlie int drm_mode_getcrtc(struct drm_device *dev, 1843f453ba04SDave Airlie void *data, struct drm_file *file_priv) 1844f453ba04SDave Airlie { 1845f453ba04SDave Airlie struct drm_mode_crtc *crtc_resp = data; 1846f453ba04SDave Airlie struct drm_crtc *crtc; 1847f453ba04SDave Airlie 1848fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1849fb3b06c8SDave Airlie return -EINVAL; 1850fb3b06c8SDave Airlie 1851a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_resp->crtc_id); 1852fcf93f69SDaniel Vetter if (!crtc) 1853fcf93f69SDaniel Vetter return -ENOENT; 1854f453ba04SDave Airlie 1855fcf93f69SDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 1856f453ba04SDave Airlie crtc_resp->gamma_size = crtc->gamma_size; 1857f4510a27SMatt Roper if (crtc->primary->fb) 1858f4510a27SMatt Roper crtc_resp->fb_id = crtc->primary->fb->base.id; 1859f453ba04SDave Airlie else 1860f453ba04SDave Airlie crtc_resp->fb_id = 0; 1861f453ba04SDave Airlie 186231c946e8SDaniel Vetter if (crtc->state) { 186331c946e8SDaniel Vetter crtc_resp->x = crtc->primary->state->src_x >> 16; 186431c946e8SDaniel Vetter crtc_resp->y = crtc->primary->state->src_y >> 16; 186531c946e8SDaniel Vetter if (crtc->state->enable) { 1866934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); 186731c946e8SDaniel Vetter crtc_resp->mode_valid = 1; 1868f453ba04SDave Airlie 186931c946e8SDaniel Vetter } else { 187031c946e8SDaniel Vetter crtc_resp->mode_valid = 0; 187131c946e8SDaniel Vetter } 187231c946e8SDaniel Vetter } else { 187331c946e8SDaniel Vetter crtc_resp->x = crtc->x; 187431c946e8SDaniel Vetter crtc_resp->y = crtc->y; 187531c946e8SDaniel Vetter if (crtc->enabled) { 1876934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); 1877f453ba04SDave Airlie crtc_resp->mode_valid = 1; 1878f453ba04SDave Airlie 1879f453ba04SDave Airlie } else { 1880f453ba04SDave Airlie crtc_resp->mode_valid = 0; 1881f453ba04SDave Airlie } 188231c946e8SDaniel Vetter } 1883fcf93f69SDaniel Vetter drm_modeset_unlock_crtc(crtc); 1884f453ba04SDave Airlie 1885baf698b0SDaniel Vetter return 0; 1886f453ba04SDave Airlie } 1887f453ba04SDave Airlie 188861d8e328SDamien Lespiau static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, 188961d8e328SDamien Lespiau const struct drm_file *file_priv) 189061d8e328SDamien Lespiau { 189161d8e328SDamien Lespiau /* 189261d8e328SDamien Lespiau * If user-space hasn't configured the driver to expose the stereo 3D 189361d8e328SDamien Lespiau * modes, don't expose them. 189461d8e328SDamien Lespiau */ 189561d8e328SDamien Lespiau if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) 189661d8e328SDamien Lespiau return false; 189761d8e328SDamien Lespiau 189861d8e328SDamien Lespiau return true; 189961d8e328SDamien Lespiau } 190061d8e328SDamien Lespiau 1901abd69c55SDaniel Vetter static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) 1902abd69c55SDaniel Vetter { 1903abd69c55SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 1904abd69c55SDaniel Vetter * protected by modeset locks, so check those first. */ 1905abd69c55SDaniel Vetter if (connector->state) 1906abd69c55SDaniel Vetter return connector->state->best_encoder; 1907abd69c55SDaniel Vetter return connector->encoder; 1908abd69c55SDaniel Vetter } 1909abd69c55SDaniel Vetter 191095cbf110SRob Clark /* helper for getconnector and getproperties ioctls */ 191188a48e29SRob Clark static int get_properties(struct drm_mode_object *obj, bool atomic, 191295cbf110SRob Clark uint32_t __user *prop_ptr, uint64_t __user *prop_values, 191395cbf110SRob Clark uint32_t *arg_count_props) 191495cbf110SRob Clark { 191588a48e29SRob Clark int props_count; 191688a48e29SRob Clark int i, ret, copied; 191788a48e29SRob Clark 191888a48e29SRob Clark props_count = obj->properties->count; 191988a48e29SRob Clark if (!atomic) 192088a48e29SRob Clark props_count -= obj->properties->atomic_count; 192195cbf110SRob Clark 192295cbf110SRob Clark if ((*arg_count_props >= props_count) && props_count) { 192388a48e29SRob Clark for (i = 0, copied = 0; copied < props_count; i++) { 192495cbf110SRob Clark struct drm_property *prop = obj->properties->properties[i]; 192595cbf110SRob Clark uint64_t val; 192695cbf110SRob Clark 192788a48e29SRob Clark if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) 192888a48e29SRob Clark continue; 192988a48e29SRob Clark 193095cbf110SRob Clark ret = drm_object_property_get_value(obj, prop, &val); 193195cbf110SRob Clark if (ret) 193295cbf110SRob Clark return ret; 193395cbf110SRob Clark 193495cbf110SRob Clark if (put_user(prop->base.id, prop_ptr + copied)) 193595cbf110SRob Clark return -EFAULT; 193695cbf110SRob Clark 193795cbf110SRob Clark if (put_user(val, prop_values + copied)) 193895cbf110SRob Clark return -EFAULT; 193995cbf110SRob Clark 194095cbf110SRob Clark copied++; 194195cbf110SRob Clark } 194295cbf110SRob Clark } 194395cbf110SRob Clark *arg_count_props = props_count; 194495cbf110SRob Clark 194595cbf110SRob Clark return 0; 194695cbf110SRob Clark } 194795cbf110SRob Clark 1948f453ba04SDave Airlie /** 1949f453ba04SDave Airlie * drm_mode_getconnector - get connector configuration 1950065a50edSDaniel Vetter * @dev: drm device for the ioctl 1951065a50edSDaniel Vetter * @data: data pointer for the ioctl 1952065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1953f453ba04SDave Airlie * 1954f453ba04SDave Airlie * Construct a connector configuration structure to return to the user. 1955f453ba04SDave Airlie * 1956f453ba04SDave Airlie * Called by the user via ioctl. 1957f453ba04SDave Airlie * 1958c8e32cc1SDaniel Vetter * Returns: 19591a498633SDaniel Vetter * Zero on success, negative errno on failure. 1960f453ba04SDave Airlie */ 1961f453ba04SDave Airlie int drm_mode_getconnector(struct drm_device *dev, void *data, 1962f453ba04SDave Airlie struct drm_file *file_priv) 1963f453ba04SDave Airlie { 1964f453ba04SDave Airlie struct drm_mode_get_connector *out_resp = data; 1965f453ba04SDave Airlie struct drm_connector *connector; 1966abd69c55SDaniel Vetter struct drm_encoder *encoder; 1967f453ba04SDave Airlie struct drm_display_mode *mode; 1968f453ba04SDave Airlie int mode_count = 0; 1969f453ba04SDave Airlie int encoders_count = 0; 1970f453ba04SDave Airlie int ret = 0; 1971f453ba04SDave Airlie int copied = 0; 1972f453ba04SDave Airlie int i; 1973f453ba04SDave Airlie struct drm_mode_modeinfo u_mode; 1974f453ba04SDave Airlie struct drm_mode_modeinfo __user *mode_ptr; 1975f453ba04SDave Airlie uint32_t __user *encoder_ptr; 1976f453ba04SDave Airlie 1977fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1978fb3b06c8SDave Airlie return -EINVAL; 1979fb3b06c8SDave Airlie 1980f453ba04SDave Airlie memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); 1981f453ba04SDave Airlie 19829440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); 1983f453ba04SDave Airlie 19847b24056bSDaniel Vetter mutex_lock(&dev->mode_config.mutex); 1985f453ba04SDave Airlie 1986a2b34e22SRob Clark connector = drm_connector_find(dev, out_resp->connector_id); 1987a2b34e22SRob Clark if (!connector) { 1988f27657f2SVille Syrjälä ret = -ENOENT; 198904bdf441STommi Rantala goto out_unlock; 1990f453ba04SDave Airlie } 1991f453ba04SDave Airlie 199201073b08SThierry Reding for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) 199301073b08SThierry Reding if (connector->encoder_ids[i] != 0) 1994f453ba04SDave Airlie encoders_count++; 1995f453ba04SDave Airlie 1996f453ba04SDave Airlie if (out_resp->count_modes == 0) { 1997f453ba04SDave Airlie connector->funcs->fill_modes(connector, 1998f453ba04SDave Airlie dev->mode_config.max_width, 1999f453ba04SDave Airlie dev->mode_config.max_height); 2000f453ba04SDave Airlie } 2001f453ba04SDave Airlie 2002f453ba04SDave Airlie /* delayed so we get modes regardless of pre-fill_modes state */ 2003f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) 200461d8e328SDamien Lespiau if (drm_mode_expose_to_userspace(mode, file_priv)) 2005f453ba04SDave Airlie mode_count++; 2006f453ba04SDave Airlie 2007f453ba04SDave Airlie out_resp->connector_id = connector->base.id; 2008f453ba04SDave Airlie out_resp->connector_type = connector->connector_type; 2009f453ba04SDave Airlie out_resp->connector_type_id = connector->connector_type_id; 2010f453ba04SDave Airlie out_resp->mm_width = connector->display_info.width_mm; 2011f453ba04SDave Airlie out_resp->mm_height = connector->display_info.height_mm; 2012f453ba04SDave Airlie out_resp->subpixel = connector->display_info.subpixel_order; 2013f453ba04SDave Airlie out_resp->connection = connector->status; 20142caa80e7SDaniel Vetter 20152caa80e7SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2016abd69c55SDaniel Vetter encoder = drm_connector_get_encoder(connector); 2017abd69c55SDaniel Vetter if (encoder) 2018abd69c55SDaniel Vetter out_resp->encoder_id = encoder->base.id; 2019f453ba04SDave Airlie else 2020f453ba04SDave Airlie out_resp->encoder_id = 0; 2021f453ba04SDave Airlie 2022f453ba04SDave Airlie /* 2023f453ba04SDave Airlie * This ioctl is called twice, once to determine how much space is 2024f453ba04SDave Airlie * needed, and the 2nd time to fill it. 2025f453ba04SDave Airlie */ 2026f453ba04SDave Airlie if ((out_resp->count_modes >= mode_count) && mode_count) { 2027f453ba04SDave Airlie copied = 0; 202881f6c7f8SVille Syrjälä mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 2029f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) { 203061d8e328SDamien Lespiau if (!drm_mode_expose_to_userspace(mode, file_priv)) 203161d8e328SDamien Lespiau continue; 203261d8e328SDamien Lespiau 2033934a8a89SDaniel Stone drm_mode_convert_to_umode(&u_mode, mode); 2034f453ba04SDave Airlie if (copy_to_user(mode_ptr + copied, 2035f453ba04SDave Airlie &u_mode, sizeof(u_mode))) { 2036f453ba04SDave Airlie ret = -EFAULT; 2037f453ba04SDave Airlie goto out; 2038f453ba04SDave Airlie } 2039f453ba04SDave Airlie copied++; 2040f453ba04SDave Airlie } 2041f453ba04SDave Airlie } 2042f453ba04SDave Airlie out_resp->count_modes = mode_count; 2043f453ba04SDave Airlie 204488a48e29SRob Clark ret = get_properties(&connector->base, file_priv->atomic, 204595cbf110SRob Clark (uint32_t __user *)(unsigned long)(out_resp->props_ptr), 204695cbf110SRob Clark (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), 204795cbf110SRob Clark &out_resp->count_props); 204822b8b13bSRob Clark if (ret) 2049f453ba04SDave Airlie goto out; 2050f453ba04SDave Airlie 2051f453ba04SDave Airlie if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 2052f453ba04SDave Airlie copied = 0; 205381f6c7f8SVille Syrjälä encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 2054f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 2055f453ba04SDave Airlie if (connector->encoder_ids[i] != 0) { 2056f453ba04SDave Airlie if (put_user(connector->encoder_ids[i], 2057f453ba04SDave Airlie encoder_ptr + copied)) { 2058f453ba04SDave Airlie ret = -EFAULT; 2059f453ba04SDave Airlie goto out; 2060f453ba04SDave Airlie } 2061f453ba04SDave Airlie copied++; 2062f453ba04SDave Airlie } 2063f453ba04SDave Airlie } 2064f453ba04SDave Airlie } 2065f453ba04SDave Airlie out_resp->count_encoders = encoders_count; 2066f453ba04SDave Airlie 2067f453ba04SDave Airlie out: 2068ccfc0865SRob Clark drm_modeset_unlock(&dev->mode_config.connection_mutex); 206904bdf441STommi Rantala 207004bdf441STommi Rantala out_unlock: 20717b24056bSDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 20727b24056bSDaniel Vetter 2073f453ba04SDave Airlie return ret; 2074f453ba04SDave Airlie } 2075f453ba04SDave Airlie 2076abd69c55SDaniel Vetter static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) 2077abd69c55SDaniel Vetter { 2078abd69c55SDaniel Vetter struct drm_connector *connector; 2079abd69c55SDaniel Vetter struct drm_device *dev = encoder->dev; 2080abd69c55SDaniel Vetter bool uses_atomic = false; 2081abd69c55SDaniel Vetter 2082abd69c55SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 2083abd69c55SDaniel Vetter * protected by modeset locks, so check those first. */ 20846295d607SDaniel Vetter drm_for_each_connector(connector, dev) { 2085abd69c55SDaniel Vetter if (!connector->state) 2086abd69c55SDaniel Vetter continue; 2087abd69c55SDaniel Vetter 2088abd69c55SDaniel Vetter uses_atomic = true; 2089abd69c55SDaniel Vetter 2090abd69c55SDaniel Vetter if (connector->state->best_encoder != encoder) 2091abd69c55SDaniel Vetter continue; 2092abd69c55SDaniel Vetter 2093abd69c55SDaniel Vetter return connector->state->crtc; 2094abd69c55SDaniel Vetter } 2095abd69c55SDaniel Vetter 2096abd69c55SDaniel Vetter /* Don't return stale data (e.g. pending async disable). */ 2097abd69c55SDaniel Vetter if (uses_atomic) 2098abd69c55SDaniel Vetter return NULL; 2099abd69c55SDaniel Vetter 2100abd69c55SDaniel Vetter return encoder->crtc; 2101abd69c55SDaniel Vetter } 2102abd69c55SDaniel Vetter 2103c8e32cc1SDaniel Vetter /** 2104c8e32cc1SDaniel Vetter * drm_mode_getencoder - get encoder configuration 2105c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2106c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2107c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2108c8e32cc1SDaniel Vetter * 2109c8e32cc1SDaniel Vetter * Construct a encoder configuration structure to return to the user. 2110c8e32cc1SDaniel Vetter * 2111c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2112c8e32cc1SDaniel Vetter * 2113c8e32cc1SDaniel Vetter * Returns: 21141a498633SDaniel Vetter * Zero on success, negative errno on failure. 2115c8e32cc1SDaniel Vetter */ 2116f453ba04SDave Airlie int drm_mode_getencoder(struct drm_device *dev, void *data, 2117f453ba04SDave Airlie struct drm_file *file_priv) 2118f453ba04SDave Airlie { 2119f453ba04SDave Airlie struct drm_mode_get_encoder *enc_resp = data; 2120f453ba04SDave Airlie struct drm_encoder *encoder; 2121abd69c55SDaniel Vetter struct drm_crtc *crtc; 2122f453ba04SDave Airlie 2123fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2124fb3b06c8SDave Airlie return -EINVAL; 2125fb3b06c8SDave Airlie 2126a2b34e22SRob Clark encoder = drm_encoder_find(dev, enc_resp->encoder_id); 2127fcf93f69SDaniel Vetter if (!encoder) 2128fcf93f69SDaniel Vetter return -ENOENT; 2129f453ba04SDave Airlie 2130fcf93f69SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2131abd69c55SDaniel Vetter crtc = drm_encoder_get_crtc(encoder); 2132abd69c55SDaniel Vetter if (crtc) 2133abd69c55SDaniel Vetter enc_resp->crtc_id = crtc->base.id; 2134f453ba04SDave Airlie else 2135f453ba04SDave Airlie enc_resp->crtc_id = 0; 2136fcf93f69SDaniel Vetter drm_modeset_unlock(&dev->mode_config.connection_mutex); 2137fcf93f69SDaniel Vetter 2138f453ba04SDave Airlie enc_resp->encoder_type = encoder->encoder_type; 2139f453ba04SDave Airlie enc_resp->encoder_id = encoder->base.id; 2140f453ba04SDave Airlie enc_resp->possible_crtcs = encoder->possible_crtcs; 2141f453ba04SDave Airlie enc_resp->possible_clones = encoder->possible_clones; 2142f453ba04SDave Airlie 2143baf698b0SDaniel Vetter return 0; 2144f453ba04SDave Airlie } 2145f453ba04SDave Airlie 2146f453ba04SDave Airlie /** 2147c8e32cc1SDaniel Vetter * drm_mode_getplane_res - enumerate all plane resources 21488cf5c917SJesse Barnes * @dev: DRM device 21498cf5c917SJesse Barnes * @data: ioctl data 21508cf5c917SJesse Barnes * @file_priv: DRM file info 21518cf5c917SJesse Barnes * 2152c8e32cc1SDaniel Vetter * Construct a list of plane ids to return to the user. 2153c8e32cc1SDaniel Vetter * 2154c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2155c8e32cc1SDaniel Vetter * 2156c8e32cc1SDaniel Vetter * Returns: 21571a498633SDaniel Vetter * Zero on success, negative errno on failure. 21588cf5c917SJesse Barnes */ 21598cf5c917SJesse Barnes int drm_mode_getplane_res(struct drm_device *dev, void *data, 21608cf5c917SJesse Barnes struct drm_file *file_priv) 21618cf5c917SJesse Barnes { 21628cf5c917SJesse Barnes struct drm_mode_get_plane_res *plane_resp = data; 21638cf5c917SJesse Barnes struct drm_mode_config *config; 21648cf5c917SJesse Barnes struct drm_plane *plane; 21658cf5c917SJesse Barnes uint32_t __user *plane_ptr; 2166fcf93f69SDaniel Vetter int copied = 0; 2167681e7ec7SMatt Roper unsigned num_planes; 21688cf5c917SJesse Barnes 21698cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 21708cf5c917SJesse Barnes return -EINVAL; 21718cf5c917SJesse Barnes 21728cf5c917SJesse Barnes config = &dev->mode_config; 21738cf5c917SJesse Barnes 2174681e7ec7SMatt Roper if (file_priv->universal_planes) 2175681e7ec7SMatt Roper num_planes = config->num_total_plane; 2176681e7ec7SMatt Roper else 2177681e7ec7SMatt Roper num_planes = config->num_overlay_plane; 2178681e7ec7SMatt Roper 21798cf5c917SJesse Barnes /* 21808cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 21818cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 21828cf5c917SJesse Barnes */ 2183681e7ec7SMatt Roper if (num_planes && 2184681e7ec7SMatt Roper (plane_resp->count_planes >= num_planes)) { 218581f6c7f8SVille Syrjälä plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; 21868cf5c917SJesse Barnes 2187fcf93f69SDaniel Vetter /* Plane lists are invariant, no locking needed. */ 2188e4f62546SDaniel Vetter drm_for_each_plane(plane, dev) { 2189681e7ec7SMatt Roper /* 2190681e7ec7SMatt Roper * Unless userspace set the 'universal planes' 2191681e7ec7SMatt Roper * capability bit, only advertise overlays. 2192681e7ec7SMatt Roper */ 2193681e7ec7SMatt Roper if (plane->type != DRM_PLANE_TYPE_OVERLAY && 2194681e7ec7SMatt Roper !file_priv->universal_planes) 2195e27dde3eSMatt Roper continue; 2196e27dde3eSMatt Roper 2197fcf93f69SDaniel Vetter if (put_user(plane->base.id, plane_ptr + copied)) 2198fcf93f69SDaniel Vetter return -EFAULT; 21998cf5c917SJesse Barnes copied++; 22008cf5c917SJesse Barnes } 22018cf5c917SJesse Barnes } 2202681e7ec7SMatt Roper plane_resp->count_planes = num_planes; 22038cf5c917SJesse Barnes 2204fcf93f69SDaniel Vetter return 0; 22058cf5c917SJesse Barnes } 22068cf5c917SJesse Barnes 22078cf5c917SJesse Barnes /** 2208c8e32cc1SDaniel Vetter * drm_mode_getplane - get plane configuration 22098cf5c917SJesse Barnes * @dev: DRM device 22108cf5c917SJesse Barnes * @data: ioctl data 22118cf5c917SJesse Barnes * @file_priv: DRM file info 22128cf5c917SJesse Barnes * 2213c8e32cc1SDaniel Vetter * Construct a plane configuration structure to return to the user. 2214c8e32cc1SDaniel Vetter * 2215c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2216c8e32cc1SDaniel Vetter * 2217c8e32cc1SDaniel Vetter * Returns: 22181a498633SDaniel Vetter * Zero on success, negative errno on failure. 22198cf5c917SJesse Barnes */ 22208cf5c917SJesse Barnes int drm_mode_getplane(struct drm_device *dev, void *data, 22218cf5c917SJesse Barnes struct drm_file *file_priv) 22228cf5c917SJesse Barnes { 22238cf5c917SJesse Barnes struct drm_mode_get_plane *plane_resp = data; 22248cf5c917SJesse Barnes struct drm_plane *plane; 22258cf5c917SJesse Barnes uint32_t __user *format_ptr; 22268cf5c917SJesse Barnes 22278cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 22288cf5c917SJesse Barnes return -EINVAL; 22298cf5c917SJesse Barnes 2230a2b34e22SRob Clark plane = drm_plane_find(dev, plane_resp->plane_id); 2231fcf93f69SDaniel Vetter if (!plane) 2232fcf93f69SDaniel Vetter return -ENOENT; 22338cf5c917SJesse Barnes 2234fcf93f69SDaniel Vetter drm_modeset_lock(&plane->mutex, NULL); 22358cf5c917SJesse Barnes if (plane->crtc) 22368cf5c917SJesse Barnes plane_resp->crtc_id = plane->crtc->base.id; 22378cf5c917SJesse Barnes else 22388cf5c917SJesse Barnes plane_resp->crtc_id = 0; 22398cf5c917SJesse Barnes 22408cf5c917SJesse Barnes if (plane->fb) 22418cf5c917SJesse Barnes plane_resp->fb_id = plane->fb->base.id; 22428cf5c917SJesse Barnes else 22438cf5c917SJesse Barnes plane_resp->fb_id = 0; 2244fcf93f69SDaniel Vetter drm_modeset_unlock(&plane->mutex); 22458cf5c917SJesse Barnes 22468cf5c917SJesse Barnes plane_resp->plane_id = plane->base.id; 22478cf5c917SJesse Barnes plane_resp->possible_crtcs = plane->possible_crtcs; 2248778ad903SVille Syrjälä plane_resp->gamma_size = 0; 22498cf5c917SJesse Barnes 22508cf5c917SJesse Barnes /* 22518cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 22528cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 22538cf5c917SJesse Barnes */ 22548cf5c917SJesse Barnes if (plane->format_count && 22558cf5c917SJesse Barnes (plane_resp->count_format_types >= plane->format_count)) { 225681f6c7f8SVille Syrjälä format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; 22578cf5c917SJesse Barnes if (copy_to_user(format_ptr, 22588cf5c917SJesse Barnes plane->format_types, 22598cf5c917SJesse Barnes sizeof(uint32_t) * plane->format_count)) { 2260fcf93f69SDaniel Vetter return -EFAULT; 22618cf5c917SJesse Barnes } 22628cf5c917SJesse Barnes } 22638cf5c917SJesse Barnes plane_resp->count_format_types = plane->format_count; 22648cf5c917SJesse Barnes 2265baf698b0SDaniel Vetter return 0; 22668cf5c917SJesse Barnes } 22678cf5c917SJesse Barnes 2268ead8610dSLaurent Pinchart /** 2269ead8610dSLaurent Pinchart * drm_plane_check_pixel_format - Check if the plane supports the pixel format 2270ead8610dSLaurent Pinchart * @plane: plane to check for format support 2271ead8610dSLaurent Pinchart * @format: the pixel format 2272ead8610dSLaurent Pinchart * 2273ead8610dSLaurent Pinchart * Returns: 2274ead8610dSLaurent Pinchart * Zero of @plane has @format in its list of supported pixel formats, -EINVAL 2275ead8610dSLaurent Pinchart * otherwise. 2276ead8610dSLaurent Pinchart */ 2277ead8610dSLaurent Pinchart int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) 2278ead8610dSLaurent Pinchart { 2279ead8610dSLaurent Pinchart unsigned int i; 2280ead8610dSLaurent Pinchart 2281ead8610dSLaurent Pinchart for (i = 0; i < plane->format_count; i++) { 2282ead8610dSLaurent Pinchart if (format == plane->format_types[i]) 2283ead8610dSLaurent Pinchart return 0; 2284ead8610dSLaurent Pinchart } 2285ead8610dSLaurent Pinchart 2286ead8610dSLaurent Pinchart return -EINVAL; 2287ead8610dSLaurent Pinchart } 2288ead8610dSLaurent Pinchart 2289b36552b3SMatt Roper /* 2290b36552b3SMatt Roper * setplane_internal - setplane handler for internal callers 22918cf5c917SJesse Barnes * 2292b36552b3SMatt Roper * Note that we assume an extra reference has already been taken on fb. If the 2293b36552b3SMatt Roper * update fails, this reference will be dropped before return; if it succeeds, 2294b36552b3SMatt Roper * the previous framebuffer (if any) will be unreferenced instead. 2295c8e32cc1SDaniel Vetter * 2296b36552b3SMatt Roper * src_{x,y,w,h} are provided in 16.16 fixed point format 22978cf5c917SJesse Barnes */ 2298f2b50c11SDaniel Vetter static int __setplane_internal(struct drm_plane *plane, 229917cfd91fSChris Wilson struct drm_crtc *crtc, 2300b36552b3SMatt Roper struct drm_framebuffer *fb, 2301b36552b3SMatt Roper int32_t crtc_x, int32_t crtc_y, 2302b36552b3SMatt Roper uint32_t crtc_w, uint32_t crtc_h, 2303b36552b3SMatt Roper /* src_{x,y,w,h} values are 16.16 fixed point */ 2304b36552b3SMatt Roper uint32_t src_x, uint32_t src_y, 2305b36552b3SMatt Roper uint32_t src_w, uint32_t src_h) 23068cf5c917SJesse Barnes { 23078cf5c917SJesse Barnes int ret = 0; 230842ef8789SVille Syrjälä unsigned int fb_width, fb_height; 23098cf5c917SJesse Barnes 23108cf5c917SJesse Barnes /* No fb means shut it down */ 2311b36552b3SMatt Roper if (!fb) { 23123d30a59bSDaniel Vetter plane->old_fb = plane->fb; 2313731cce48SDaniel Vetter ret = plane->funcs->disable_plane(plane); 2314731cce48SDaniel Vetter if (!ret) { 2315e5e3b44cSVille Syrjälä plane->crtc = NULL; 2316e5e3b44cSVille Syrjälä plane->fb = NULL; 2317731cce48SDaniel Vetter } else { 23183d30a59bSDaniel Vetter plane->old_fb = NULL; 2319731cce48SDaniel Vetter } 23208cf5c917SJesse Barnes goto out; 23218cf5c917SJesse Barnes } 23228cf5c917SJesse Barnes 23237f994f3fSMatt Roper /* Check whether this plane is usable on this CRTC */ 23247f994f3fSMatt Roper if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { 23257f994f3fSMatt Roper DRM_DEBUG_KMS("Invalid crtc for plane\n"); 23267f994f3fSMatt Roper ret = -EINVAL; 23277f994f3fSMatt Roper goto out; 23287f994f3fSMatt Roper } 23297f994f3fSMatt Roper 233062443be6SVille Syrjälä /* Check whether this plane supports the fb pixel format. */ 2331ead8610dSLaurent Pinchart ret = drm_plane_check_pixel_format(plane, fb->pixel_format); 2332ead8610dSLaurent Pinchart if (ret) { 23336ba6d03eSVille Syrjälä DRM_DEBUG_KMS("Invalid pixel format %s\n", 23346ba6d03eSVille Syrjälä drm_get_format_name(fb->pixel_format)); 233562443be6SVille Syrjälä goto out; 233662443be6SVille Syrjälä } 233762443be6SVille Syrjälä 23383968be94SMatt Roper /* Give drivers some help against integer overflows */ 23393968be94SMatt Roper if (crtc_w > INT_MAX || 23403968be94SMatt Roper crtc_x > INT_MAX - (int32_t) crtc_w || 23413968be94SMatt Roper crtc_h > INT_MAX || 23423968be94SMatt Roper crtc_y > INT_MAX - (int32_t) crtc_h) { 23433968be94SMatt Roper DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", 23443968be94SMatt Roper crtc_w, crtc_h, crtc_x, crtc_y); 23453968be94SMatt Roper return -ERANGE; 23463968be94SMatt Roper } 23473968be94SMatt Roper 23483968be94SMatt Roper 234942ef8789SVille Syrjälä fb_width = fb->width << 16; 235042ef8789SVille Syrjälä fb_height = fb->height << 16; 235142ef8789SVille Syrjälä 235242ef8789SVille Syrjälä /* Make sure source coordinates are inside the fb. */ 2353b36552b3SMatt Roper if (src_w > fb_width || 2354b36552b3SMatt Roper src_x > fb_width - src_w || 2355b36552b3SMatt Roper src_h > fb_height || 2356b36552b3SMatt Roper src_y > fb_height - src_h) { 235742ef8789SVille Syrjälä DRM_DEBUG_KMS("Invalid source coordinates " 235842ef8789SVille Syrjälä "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", 2359b36552b3SMatt Roper src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, 2360b36552b3SMatt Roper src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, 2361b36552b3SMatt Roper src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, 2362b36552b3SMatt Roper src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); 236342ef8789SVille Syrjälä ret = -ENOSPC; 236442ef8789SVille Syrjälä goto out; 236542ef8789SVille Syrjälä } 236642ef8789SVille Syrjälä 23673d30a59bSDaniel Vetter plane->old_fb = plane->fb; 23688cf5c917SJesse Barnes ret = plane->funcs->update_plane(plane, crtc, fb, 2369b36552b3SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 2370b36552b3SMatt Roper src_x, src_y, src_w, src_h); 23718cf5c917SJesse Barnes if (!ret) { 23728cf5c917SJesse Barnes plane->crtc = crtc; 23738cf5c917SJesse Barnes plane->fb = fb; 237435f8badcSDaniel Vetter fb = NULL; 23750fe27f06SDaniel Vetter } else { 23763d30a59bSDaniel Vetter plane->old_fb = NULL; 23778cf5c917SJesse Barnes } 23788cf5c917SJesse Barnes 23798cf5c917SJesse Barnes out: 23806c2a7532SDaniel Vetter if (fb) 23816c2a7532SDaniel Vetter drm_framebuffer_unreference(fb); 23823d30a59bSDaniel Vetter if (plane->old_fb) 23833d30a59bSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 23843d30a59bSDaniel Vetter plane->old_fb = NULL; 23858cf5c917SJesse Barnes 23868cf5c917SJesse Barnes return ret; 2387f2b50c11SDaniel Vetter } 2388b36552b3SMatt Roper 2389f2b50c11SDaniel Vetter static int setplane_internal(struct drm_plane *plane, 2390f2b50c11SDaniel Vetter struct drm_crtc *crtc, 2391f2b50c11SDaniel Vetter struct drm_framebuffer *fb, 2392f2b50c11SDaniel Vetter int32_t crtc_x, int32_t crtc_y, 2393f2b50c11SDaniel Vetter uint32_t crtc_w, uint32_t crtc_h, 2394f2b50c11SDaniel Vetter /* src_{x,y,w,h} values are 16.16 fixed point */ 2395f2b50c11SDaniel Vetter uint32_t src_x, uint32_t src_y, 2396f2b50c11SDaniel Vetter uint32_t src_w, uint32_t src_h) 2397f2b50c11SDaniel Vetter { 2398f2b50c11SDaniel Vetter int ret; 2399f2b50c11SDaniel Vetter 2400f2b50c11SDaniel Vetter drm_modeset_lock_all(plane->dev); 2401f2b50c11SDaniel Vetter ret = __setplane_internal(plane, crtc, fb, 2402f2b50c11SDaniel Vetter crtc_x, crtc_y, crtc_w, crtc_h, 2403f2b50c11SDaniel Vetter src_x, src_y, src_w, src_h); 2404f2b50c11SDaniel Vetter drm_modeset_unlock_all(plane->dev); 2405f2b50c11SDaniel Vetter 2406f2b50c11SDaniel Vetter return ret; 2407b36552b3SMatt Roper } 2408b36552b3SMatt Roper 2409b36552b3SMatt Roper /** 2410b36552b3SMatt Roper * drm_mode_setplane - configure a plane's configuration 2411b36552b3SMatt Roper * @dev: DRM device 2412b36552b3SMatt Roper * @data: ioctl data* 2413b36552b3SMatt Roper * @file_priv: DRM file info 2414b36552b3SMatt Roper * 2415b36552b3SMatt Roper * Set plane configuration, including placement, fb, scaling, and other factors. 2416b36552b3SMatt Roper * Or pass a NULL fb to disable (planes may be disabled without providing a 2417b36552b3SMatt Roper * valid crtc). 2418b36552b3SMatt Roper * 2419b36552b3SMatt Roper * Returns: 24201a498633SDaniel Vetter * Zero on success, negative errno on failure. 2421b36552b3SMatt Roper */ 2422b36552b3SMatt Roper int drm_mode_setplane(struct drm_device *dev, void *data, 2423b36552b3SMatt Roper struct drm_file *file_priv) 2424b36552b3SMatt Roper { 2425b36552b3SMatt Roper struct drm_mode_set_plane *plane_req = data; 2426b36552b3SMatt Roper struct drm_plane *plane; 2427b36552b3SMatt Roper struct drm_crtc *crtc = NULL; 2428b36552b3SMatt Roper struct drm_framebuffer *fb = NULL; 2429b36552b3SMatt Roper 2430b36552b3SMatt Roper if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2431b36552b3SMatt Roper return -EINVAL; 2432b36552b3SMatt Roper 2433b36552b3SMatt Roper /* 2434b36552b3SMatt Roper * First, find the plane, crtc, and fb objects. If not available, 2435b36552b3SMatt Roper * we don't bother to call the driver. 2436b36552b3SMatt Roper */ 2437933f622fSRob Clark plane = drm_plane_find(dev, plane_req->plane_id); 2438933f622fSRob Clark if (!plane) { 2439b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown plane ID %d\n", 2440b36552b3SMatt Roper plane_req->plane_id); 2441b36552b3SMatt Roper return -ENOENT; 2442b36552b3SMatt Roper } 2443b36552b3SMatt Roper 2444b36552b3SMatt Roper if (plane_req->fb_id) { 2445b36552b3SMatt Roper fb = drm_framebuffer_lookup(dev, plane_req->fb_id); 2446b36552b3SMatt Roper if (!fb) { 2447b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", 2448b36552b3SMatt Roper plane_req->fb_id); 2449b36552b3SMatt Roper return -ENOENT; 2450b36552b3SMatt Roper } 2451b36552b3SMatt Roper 2452933f622fSRob Clark crtc = drm_crtc_find(dev, plane_req->crtc_id); 2453933f622fSRob Clark if (!crtc) { 2454b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown crtc ID %d\n", 2455b36552b3SMatt Roper plane_req->crtc_id); 2456b36552b3SMatt Roper return -ENOENT; 2457b36552b3SMatt Roper } 2458b36552b3SMatt Roper } 2459b36552b3SMatt Roper 2460161d0dc1SMatt Roper /* 2461161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 2462161d0dc1SMatt Roper * framebuffer depending on success. 2463161d0dc1SMatt Roper */ 246417cfd91fSChris Wilson return setplane_internal(plane, crtc, fb, 2465b36552b3SMatt Roper plane_req->crtc_x, plane_req->crtc_y, 2466b36552b3SMatt Roper plane_req->crtc_w, plane_req->crtc_h, 2467b36552b3SMatt Roper plane_req->src_x, plane_req->src_y, 2468b36552b3SMatt Roper plane_req->src_w, plane_req->src_h); 24698cf5c917SJesse Barnes } 24708cf5c917SJesse Barnes 24718cf5c917SJesse Barnes /** 24722d13b679SDaniel Vetter * drm_mode_set_config_internal - helper to call ->set_config 24732d13b679SDaniel Vetter * @set: modeset config to set 24742d13b679SDaniel Vetter * 24752d13b679SDaniel Vetter * This is a little helper to wrap internal calls to the ->set_config driver 24762d13b679SDaniel Vetter * interface. The only thing it adds is correct refcounting dance. 2477c8e32cc1SDaniel Vetter * 2478c8e32cc1SDaniel Vetter * Returns: 24791a498633SDaniel Vetter * Zero on success, negative errno on failure. 24802d13b679SDaniel Vetter */ 24812d13b679SDaniel Vetter int drm_mode_set_config_internal(struct drm_mode_set *set) 24822d13b679SDaniel Vetter { 24832d13b679SDaniel Vetter struct drm_crtc *crtc = set->crtc; 24845cef29aaSDaniel Vetter struct drm_framebuffer *fb; 24855cef29aaSDaniel Vetter struct drm_crtc *tmp; 2486b0d12325SDaniel Vetter int ret; 24872d13b679SDaniel Vetter 24885cef29aaSDaniel Vetter /* 24895cef29aaSDaniel Vetter * NOTE: ->set_config can also disable other crtcs (if we steal all 24905cef29aaSDaniel Vetter * connectors from it), hence we need to refcount the fbs across all 24915cef29aaSDaniel Vetter * crtcs. Atomic modeset will have saner semantics ... 24925cef29aaSDaniel Vetter */ 2493e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) 24943d30a59bSDaniel Vetter tmp->primary->old_fb = tmp->primary->fb; 24955cef29aaSDaniel Vetter 2496b0d12325SDaniel Vetter fb = set->fb; 2497b0d12325SDaniel Vetter 2498b0d12325SDaniel Vetter ret = crtc->funcs->set_config(set); 2499b0d12325SDaniel Vetter if (ret == 0) { 2500e13161afSMatt Roper crtc->primary->crtc = crtc; 25010fe27f06SDaniel Vetter crtc->primary->fb = fb; 25025cef29aaSDaniel Vetter } 2503cc85e121SDaniel Vetter 2504e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) { 2505f4510a27SMatt Roper if (tmp->primary->fb) 2506f4510a27SMatt Roper drm_framebuffer_reference(tmp->primary->fb); 25073d30a59bSDaniel Vetter if (tmp->primary->old_fb) 25083d30a59bSDaniel Vetter drm_framebuffer_unreference(tmp->primary->old_fb); 25093d30a59bSDaniel Vetter tmp->primary->old_fb = NULL; 2510b0d12325SDaniel Vetter } 2511b0d12325SDaniel Vetter 2512b0d12325SDaniel Vetter return ret; 25132d13b679SDaniel Vetter } 25142d13b679SDaniel Vetter EXPORT_SYMBOL(drm_mode_set_config_internal); 25152d13b679SDaniel Vetter 2516af93629dSMatt Roper /** 2517ecb7e16bSGustavo Padovan * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode 2518ecb7e16bSGustavo Padovan * @mode: mode to query 2519ecb7e16bSGustavo Padovan * @hdisplay: hdisplay value to fill in 2520ecb7e16bSGustavo Padovan * @vdisplay: vdisplay value to fill in 2521ecb7e16bSGustavo Padovan * 2522ecb7e16bSGustavo Padovan * The vdisplay value will be doubled if the specified mode is a stereo mode of 2523ecb7e16bSGustavo Padovan * the appropriate layout. 2524ecb7e16bSGustavo Padovan */ 2525ecb7e16bSGustavo Padovan void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, 2526ecb7e16bSGustavo Padovan int *hdisplay, int *vdisplay) 2527ecb7e16bSGustavo Padovan { 2528ecb7e16bSGustavo Padovan struct drm_display_mode adjusted; 2529ecb7e16bSGustavo Padovan 2530ecb7e16bSGustavo Padovan drm_mode_copy(&adjusted, mode); 2531ecb7e16bSGustavo Padovan drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); 2532ecb7e16bSGustavo Padovan *hdisplay = adjusted.crtc_hdisplay; 2533ecb7e16bSGustavo Padovan *vdisplay = adjusted.crtc_vdisplay; 2534ecb7e16bSGustavo Padovan } 2535ecb7e16bSGustavo Padovan EXPORT_SYMBOL(drm_crtc_get_hv_timing); 2536ecb7e16bSGustavo Padovan 2537ecb7e16bSGustavo Padovan /** 2538af93629dSMatt Roper * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the 2539af93629dSMatt Roper * CRTC viewport 2540af93629dSMatt Roper * @crtc: CRTC that framebuffer will be displayed on 2541af93629dSMatt Roper * @x: x panning 2542af93629dSMatt Roper * @y: y panning 2543af93629dSMatt Roper * @mode: mode that framebuffer will be displayed under 2544af93629dSMatt Roper * @fb: framebuffer to check size of 2545c11e9283SDamien Lespiau */ 2546af93629dSMatt Roper int drm_crtc_check_viewport(const struct drm_crtc *crtc, 2547c11e9283SDamien Lespiau int x, int y, 2548c11e9283SDamien Lespiau const struct drm_display_mode *mode, 2549c11e9283SDamien Lespiau const struct drm_framebuffer *fb) 2550c11e9283SDamien Lespiau 2551c11e9283SDamien Lespiau { 2552c11e9283SDamien Lespiau int hdisplay, vdisplay; 2553c11e9283SDamien Lespiau 2554ecb7e16bSGustavo Padovan drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); 2555a0c1bbb0SDamien Lespiau 2556c11e9283SDamien Lespiau if (crtc->invert_dimensions) 2557c11e9283SDamien Lespiau swap(hdisplay, vdisplay); 2558c11e9283SDamien Lespiau 2559c11e9283SDamien Lespiau if (hdisplay > fb->width || 2560c11e9283SDamien Lespiau vdisplay > fb->height || 2561c11e9283SDamien Lespiau x > fb->width - hdisplay || 2562c11e9283SDamien Lespiau y > fb->height - vdisplay) { 2563c11e9283SDamien Lespiau DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", 2564c11e9283SDamien Lespiau fb->width, fb->height, hdisplay, vdisplay, x, y, 2565c11e9283SDamien Lespiau crtc->invert_dimensions ? " (inverted)" : ""); 2566c11e9283SDamien Lespiau return -ENOSPC; 2567c11e9283SDamien Lespiau } 2568c11e9283SDamien Lespiau 2569c11e9283SDamien Lespiau return 0; 2570c11e9283SDamien Lespiau } 2571af93629dSMatt Roper EXPORT_SYMBOL(drm_crtc_check_viewport); 2572c11e9283SDamien Lespiau 25732d13b679SDaniel Vetter /** 2574f453ba04SDave Airlie * drm_mode_setcrtc - set CRTC configuration 2575065a50edSDaniel Vetter * @dev: drm device for the ioctl 2576065a50edSDaniel Vetter * @data: data pointer for the ioctl 2577065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2578f453ba04SDave Airlie * 2579f453ba04SDave Airlie * Build a new CRTC configuration based on user request. 2580f453ba04SDave Airlie * 2581f453ba04SDave Airlie * Called by the user via ioctl. 2582f453ba04SDave Airlie * 2583c8e32cc1SDaniel Vetter * Returns: 25841a498633SDaniel Vetter * Zero on success, negative errno on failure. 2585f453ba04SDave Airlie */ 2586f453ba04SDave Airlie int drm_mode_setcrtc(struct drm_device *dev, void *data, 2587f453ba04SDave Airlie struct drm_file *file_priv) 2588f453ba04SDave Airlie { 2589f453ba04SDave Airlie struct drm_mode_config *config = &dev->mode_config; 2590f453ba04SDave Airlie struct drm_mode_crtc *crtc_req = data; 25916653cc8dSVille Syrjälä struct drm_crtc *crtc; 2592f453ba04SDave Airlie struct drm_connector **connector_set = NULL, *connector; 2593f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 2594f453ba04SDave Airlie struct drm_display_mode *mode = NULL; 2595f453ba04SDave Airlie struct drm_mode_set set; 2596f453ba04SDave Airlie uint32_t __user *set_connectors_ptr; 25974a1b0714SLaurent Pinchart int ret; 2598f453ba04SDave Airlie int i; 2599f453ba04SDave Airlie 2600fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2601fb3b06c8SDave Airlie return -EINVAL; 2602fb3b06c8SDave Airlie 260301447e9fSZhao Junwang /* 260401447e9fSZhao Junwang * Universal plane src offsets are only 16.16, prevent havoc for 260501447e9fSZhao Junwang * drivers using universal plane code internally. 260601447e9fSZhao Junwang */ 260701447e9fSZhao Junwang if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) 26081d97e915SVille Syrjälä return -ERANGE; 26091d97e915SVille Syrjälä 261084849903SDaniel Vetter drm_modeset_lock_all(dev); 2611a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_req->crtc_id); 2612a2b34e22SRob Clark if (!crtc) { 261358367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 2614f27657f2SVille Syrjälä ret = -ENOENT; 2615f453ba04SDave Airlie goto out; 2616f453ba04SDave Airlie } 26179440106bSJerome Glisse DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 2618f453ba04SDave Airlie 2619f453ba04SDave Airlie if (crtc_req->mode_valid) { 2620f453ba04SDave Airlie /* If we have a mode we need a framebuffer. */ 2621f453ba04SDave Airlie /* If we pass -1, set the mode with the currently bound fb */ 2622f453ba04SDave Airlie if (crtc_req->fb_id == -1) { 2623f4510a27SMatt Roper if (!crtc->primary->fb) { 26246653cc8dSVille Syrjälä DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 26256653cc8dSVille Syrjälä ret = -EINVAL; 26266653cc8dSVille Syrjälä goto out; 26276653cc8dSVille Syrjälä } 2628f4510a27SMatt Roper fb = crtc->primary->fb; 2629b0d12325SDaniel Vetter /* Make refcounting symmetric with the lookup path. */ 2630b0d12325SDaniel Vetter drm_framebuffer_reference(fb); 2631f453ba04SDave Airlie } else { 2632786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); 2633786b99edSDaniel Vetter if (!fb) { 263458367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown FB ID%d\n", 263558367ed6SZhao Yakui crtc_req->fb_id); 263637c4e705SVille Syrjälä ret = -ENOENT; 2637f453ba04SDave Airlie goto out; 2638f453ba04SDave Airlie } 2639f453ba04SDave Airlie } 2640f453ba04SDave Airlie 2641f453ba04SDave Airlie mode = drm_mode_create(dev); 2642ee34ab5bSVille Syrjälä if (!mode) { 2643ee34ab5bSVille Syrjälä ret = -ENOMEM; 2644ee34ab5bSVille Syrjälä goto out; 2645ee34ab5bSVille Syrjälä } 2646ee34ab5bSVille Syrjälä 2647934a8a89SDaniel Stone ret = drm_mode_convert_umode(mode, &crtc_req->mode); 264890367bf6SVille Syrjälä if (ret) { 264990367bf6SVille Syrjälä DRM_DEBUG_KMS("Invalid mode\n"); 265090367bf6SVille Syrjälä goto out; 265190367bf6SVille Syrjälä } 265290367bf6SVille Syrjälä 2653f453ba04SDave Airlie drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 26545f61bb42SVille Syrjälä 26557eb5f302SLaurent Pinchart /* 26567eb5f302SLaurent Pinchart * Check whether the primary plane supports the fb pixel format. 26577eb5f302SLaurent Pinchart * Drivers not implementing the universal planes API use a 26587eb5f302SLaurent Pinchart * default formats list provided by the DRM core which doesn't 26597eb5f302SLaurent Pinchart * match real hardware capabilities. Skip the check in that 26607eb5f302SLaurent Pinchart * case. 26617eb5f302SLaurent Pinchart */ 26627eb5f302SLaurent Pinchart if (!crtc->primary->format_default) { 26637eb5f302SLaurent Pinchart ret = drm_plane_check_pixel_format(crtc->primary, 26647eb5f302SLaurent Pinchart fb->pixel_format); 26657eb5f302SLaurent Pinchart if (ret) { 26667eb5f302SLaurent Pinchart DRM_DEBUG_KMS("Invalid pixel format %s\n", 26677eb5f302SLaurent Pinchart drm_get_format_name(fb->pixel_format)); 26687eb5f302SLaurent Pinchart goto out; 26697eb5f302SLaurent Pinchart } 26707eb5f302SLaurent Pinchart } 26717eb5f302SLaurent Pinchart 2672c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, 2673c11e9283SDamien Lespiau mode, fb); 2674c11e9283SDamien Lespiau if (ret) 26755f61bb42SVille Syrjälä goto out; 2676c11e9283SDamien Lespiau 2677f453ba04SDave Airlie } 2678f453ba04SDave Airlie 2679f453ba04SDave Airlie if (crtc_req->count_connectors == 0 && mode) { 268058367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 2681f453ba04SDave Airlie ret = -EINVAL; 2682f453ba04SDave Airlie goto out; 2683f453ba04SDave Airlie } 2684f453ba04SDave Airlie 26857781de74SJakob Bornecrantz if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 268658367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 2687f453ba04SDave Airlie crtc_req->count_connectors); 2688f453ba04SDave Airlie ret = -EINVAL; 2689f453ba04SDave Airlie goto out; 2690f453ba04SDave Airlie } 2691f453ba04SDave Airlie 2692f453ba04SDave Airlie if (crtc_req->count_connectors > 0) { 2693f453ba04SDave Airlie u32 out_id; 2694f453ba04SDave Airlie 2695f453ba04SDave Airlie /* Avoid unbounded kernel memory allocation */ 2696f453ba04SDave Airlie if (crtc_req->count_connectors > config->num_connector) { 2697f453ba04SDave Airlie ret = -EINVAL; 2698f453ba04SDave Airlie goto out; 2699f453ba04SDave Airlie } 2700f453ba04SDave Airlie 27012f6c5389SThierry Reding connector_set = kmalloc_array(crtc_req->count_connectors, 2702f453ba04SDave Airlie sizeof(struct drm_connector *), 2703f453ba04SDave Airlie GFP_KERNEL); 2704f453ba04SDave Airlie if (!connector_set) { 2705f453ba04SDave Airlie ret = -ENOMEM; 2706f453ba04SDave Airlie goto out; 2707f453ba04SDave Airlie } 2708f453ba04SDave Airlie 2709f453ba04SDave Airlie for (i = 0; i < crtc_req->count_connectors; i++) { 271081f6c7f8SVille Syrjälä set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 2711f453ba04SDave Airlie if (get_user(out_id, &set_connectors_ptr[i])) { 2712f453ba04SDave Airlie ret = -EFAULT; 2713f453ba04SDave Airlie goto out; 2714f453ba04SDave Airlie } 2715f453ba04SDave Airlie 2716a2b34e22SRob Clark connector = drm_connector_find(dev, out_id); 2717a2b34e22SRob Clark if (!connector) { 271858367ed6SZhao Yakui DRM_DEBUG_KMS("Connector id %d unknown\n", 271958367ed6SZhao Yakui out_id); 2720f27657f2SVille Syrjälä ret = -ENOENT; 2721f453ba04SDave Airlie goto out; 2722f453ba04SDave Airlie } 27239440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 27249440106bSJerome Glisse connector->base.id, 272525933820SJani Nikula connector->name); 2726f453ba04SDave Airlie 2727f453ba04SDave Airlie connector_set[i] = connector; 2728f453ba04SDave Airlie } 2729f453ba04SDave Airlie } 2730f453ba04SDave Airlie 2731f453ba04SDave Airlie set.crtc = crtc; 2732f453ba04SDave Airlie set.x = crtc_req->x; 2733f453ba04SDave Airlie set.y = crtc_req->y; 2734f453ba04SDave Airlie set.mode = mode; 2735f453ba04SDave Airlie set.connectors = connector_set; 2736f453ba04SDave Airlie set.num_connectors = crtc_req->count_connectors; 2737f453ba04SDave Airlie set.fb = fb; 27382d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 2739f453ba04SDave Airlie 2740f453ba04SDave Airlie out: 2741b0d12325SDaniel Vetter if (fb) 2742b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 2743b0d12325SDaniel Vetter 2744f453ba04SDave Airlie kfree(connector_set); 2745ee34ab5bSVille Syrjälä drm_mode_destroy(dev, mode); 274684849903SDaniel Vetter drm_modeset_unlock_all(dev); 2747f453ba04SDave Airlie return ret; 2748f453ba04SDave Airlie } 2749f453ba04SDave Airlie 2750161d0dc1SMatt Roper /** 2751161d0dc1SMatt Roper * drm_mode_cursor_universal - translate legacy cursor ioctl call into a 2752161d0dc1SMatt Roper * universal plane handler call 2753161d0dc1SMatt Roper * @crtc: crtc to update cursor for 2754161d0dc1SMatt Roper * @req: data pointer for the ioctl 2755161d0dc1SMatt Roper * @file_priv: drm file for the ioctl call 2756161d0dc1SMatt Roper * 2757161d0dc1SMatt Roper * Legacy cursor ioctl's work directly with driver buffer handles. To 2758161d0dc1SMatt Roper * translate legacy ioctl calls into universal plane handler calls, we need to 2759161d0dc1SMatt Roper * wrap the native buffer handle in a drm_framebuffer. 2760161d0dc1SMatt Roper * 2761161d0dc1SMatt Roper * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB 2762161d0dc1SMatt Roper * buffer with a pitch of 4*width; the universal plane interface should be used 2763161d0dc1SMatt Roper * directly in cases where the hardware can support other buffer settings and 2764161d0dc1SMatt Roper * userspace wants to make use of these capabilities. 2765161d0dc1SMatt Roper * 2766161d0dc1SMatt Roper * Returns: 27671a498633SDaniel Vetter * Zero on success, negative errno on failure. 2768161d0dc1SMatt Roper */ 2769161d0dc1SMatt Roper static int drm_mode_cursor_universal(struct drm_crtc *crtc, 2770161d0dc1SMatt Roper struct drm_mode_cursor2 *req, 2771161d0dc1SMatt Roper struct drm_file *file_priv) 2772161d0dc1SMatt Roper { 2773161d0dc1SMatt Roper struct drm_device *dev = crtc->dev; 2774161d0dc1SMatt Roper struct drm_framebuffer *fb = NULL; 2775161d0dc1SMatt Roper struct drm_mode_fb_cmd2 fbreq = { 2776161d0dc1SMatt Roper .width = req->width, 2777161d0dc1SMatt Roper .height = req->height, 2778161d0dc1SMatt Roper .pixel_format = DRM_FORMAT_ARGB8888, 2779161d0dc1SMatt Roper .pitches = { req->width * 4 }, 2780161d0dc1SMatt Roper .handles = { req->handle }, 2781161d0dc1SMatt Roper }; 2782161d0dc1SMatt Roper int32_t crtc_x, crtc_y; 2783161d0dc1SMatt Roper uint32_t crtc_w = 0, crtc_h = 0; 2784161d0dc1SMatt Roper uint32_t src_w = 0, src_h = 0; 2785161d0dc1SMatt Roper int ret = 0; 2786161d0dc1SMatt Roper 2787161d0dc1SMatt Roper BUG_ON(!crtc->cursor); 2788f2b50c11SDaniel Vetter WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); 2789161d0dc1SMatt Roper 2790161d0dc1SMatt Roper /* 2791161d0dc1SMatt Roper * Obtain fb we'll be using (either new or existing) and take an extra 2792161d0dc1SMatt Roper * reference to it if fb != null. setplane will take care of dropping 2793161d0dc1SMatt Roper * the reference if the plane update fails. 2794161d0dc1SMatt Roper */ 2795161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_BO) { 2796161d0dc1SMatt Roper if (req->handle) { 27979a6f5130SChris Wilson fb = internal_framebuffer_create(dev, &fbreq, file_priv); 2798161d0dc1SMatt Roper if (IS_ERR(fb)) { 2799161d0dc1SMatt Roper DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); 2800161d0dc1SMatt Roper return PTR_ERR(fb); 2801161d0dc1SMatt Roper } 2802161d0dc1SMatt Roper } else { 2803161d0dc1SMatt Roper fb = NULL; 2804161d0dc1SMatt Roper } 2805161d0dc1SMatt Roper } else { 2806161d0dc1SMatt Roper fb = crtc->cursor->fb; 2807161d0dc1SMatt Roper if (fb) 2808161d0dc1SMatt Roper drm_framebuffer_reference(fb); 2809161d0dc1SMatt Roper } 2810161d0dc1SMatt Roper 2811161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_MOVE) { 2812161d0dc1SMatt Roper crtc_x = req->x; 2813161d0dc1SMatt Roper crtc_y = req->y; 2814161d0dc1SMatt Roper } else { 2815161d0dc1SMatt Roper crtc_x = crtc->cursor_x; 2816161d0dc1SMatt Roper crtc_y = crtc->cursor_y; 2817161d0dc1SMatt Roper } 2818161d0dc1SMatt Roper 2819161d0dc1SMatt Roper if (fb) { 2820161d0dc1SMatt Roper crtc_w = fb->width; 2821161d0dc1SMatt Roper crtc_h = fb->height; 2822161d0dc1SMatt Roper src_w = fb->width << 16; 2823161d0dc1SMatt Roper src_h = fb->height << 16; 2824161d0dc1SMatt Roper } 2825161d0dc1SMatt Roper 2826161d0dc1SMatt Roper /* 2827161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 2828161d0dc1SMatt Roper * framebuffer depending on success. 2829161d0dc1SMatt Roper */ 2830f2b50c11SDaniel Vetter ret = __setplane_internal(crtc->cursor, crtc, fb, 2831161d0dc1SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 2832161d0dc1SMatt Roper 0, 0, src_w, src_h); 2833161d0dc1SMatt Roper 2834161d0dc1SMatt Roper /* Update successful; save new cursor position, if necessary */ 2835161d0dc1SMatt Roper if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { 2836161d0dc1SMatt Roper crtc->cursor_x = req->x; 2837161d0dc1SMatt Roper crtc->cursor_y = req->y; 2838161d0dc1SMatt Roper } 2839161d0dc1SMatt Roper 2840161d0dc1SMatt Roper return ret; 2841161d0dc1SMatt Roper } 2842161d0dc1SMatt Roper 28434c813d4dSDave Airlie static int drm_mode_cursor_common(struct drm_device *dev, 28444c813d4dSDave Airlie struct drm_mode_cursor2 *req, 28454c813d4dSDave Airlie struct drm_file *file_priv) 2846f453ba04SDave Airlie { 2847f453ba04SDave Airlie struct drm_crtc *crtc; 2848f453ba04SDave Airlie int ret = 0; 2849f453ba04SDave Airlie 2850fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2851fb3b06c8SDave Airlie return -EINVAL; 2852fb3b06c8SDave Airlie 28537c4eaca4SJakob Bornecrantz if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) 2854f453ba04SDave Airlie return -EINVAL; 2855f453ba04SDave Airlie 2856a2b34e22SRob Clark crtc = drm_crtc_find(dev, req->crtc_id); 2857a2b34e22SRob Clark if (!crtc) { 285858367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); 2859f27657f2SVille Syrjälä return -ENOENT; 2860f453ba04SDave Airlie } 2861f453ba04SDave Airlie 2862161d0dc1SMatt Roper /* 2863161d0dc1SMatt Roper * If this crtc has a universal cursor plane, call that plane's update 2864161d0dc1SMatt Roper * handler rather than using legacy cursor handlers. 2865161d0dc1SMatt Roper */ 28664d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->cursor); 2867f2b50c11SDaniel Vetter if (crtc->cursor) { 2868f2b50c11SDaniel Vetter ret = drm_mode_cursor_universal(crtc, req, file_priv); 2869f2b50c11SDaniel Vetter goto out; 2870f2b50c11SDaniel Vetter } 2871f2b50c11SDaniel Vetter 2872f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_BO) { 28734c813d4dSDave Airlie if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { 2874f453ba04SDave Airlie ret = -ENXIO; 2875f453ba04SDave Airlie goto out; 2876f453ba04SDave Airlie } 2877f453ba04SDave Airlie /* Turns off the cursor if handle is 0 */ 28784c813d4dSDave Airlie if (crtc->funcs->cursor_set2) 28794c813d4dSDave Airlie ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, 28804c813d4dSDave Airlie req->width, req->height, req->hot_x, req->hot_y); 28814c813d4dSDave Airlie else 2882f453ba04SDave Airlie ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, 2883f453ba04SDave Airlie req->width, req->height); 2884f453ba04SDave Airlie } 2885f453ba04SDave Airlie 2886f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_MOVE) { 2887f453ba04SDave Airlie if (crtc->funcs->cursor_move) { 2888f453ba04SDave Airlie ret = crtc->funcs->cursor_move(crtc, req->x, req->y); 2889f453ba04SDave Airlie } else { 2890f453ba04SDave Airlie ret = -EFAULT; 2891f453ba04SDave Airlie goto out; 2892f453ba04SDave Airlie } 2893f453ba04SDave Airlie } 2894f453ba04SDave Airlie out: 2895d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 2896dac35663SDaniel Vetter 2897f453ba04SDave Airlie return ret; 28984c813d4dSDave Airlie 28994c813d4dSDave Airlie } 2900c8e32cc1SDaniel Vetter 2901c8e32cc1SDaniel Vetter 2902c8e32cc1SDaniel Vetter /** 2903c8e32cc1SDaniel Vetter * drm_mode_cursor_ioctl - set CRTC's cursor configuration 2904c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2905c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2906c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2907c8e32cc1SDaniel Vetter * 2908c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. 2909c8e32cc1SDaniel Vetter * 2910c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2911c8e32cc1SDaniel Vetter * 2912c8e32cc1SDaniel Vetter * Returns: 29131a498633SDaniel Vetter * Zero on success, negative errno on failure. 2914c8e32cc1SDaniel Vetter */ 29154c813d4dSDave Airlie int drm_mode_cursor_ioctl(struct drm_device *dev, 29164c813d4dSDave Airlie void *data, struct drm_file *file_priv) 29174c813d4dSDave Airlie { 29184c813d4dSDave Airlie struct drm_mode_cursor *req = data; 29194c813d4dSDave Airlie struct drm_mode_cursor2 new_req; 29204c813d4dSDave Airlie 29214c813d4dSDave Airlie memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); 29224c813d4dSDave Airlie new_req.hot_x = new_req.hot_y = 0; 29234c813d4dSDave Airlie 29244c813d4dSDave Airlie return drm_mode_cursor_common(dev, &new_req, file_priv); 29254c813d4dSDave Airlie } 29264c813d4dSDave Airlie 2927c8e32cc1SDaniel Vetter /** 2928c8e32cc1SDaniel Vetter * drm_mode_cursor2_ioctl - set CRTC's cursor configuration 2929c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2930c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2931c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2932c8e32cc1SDaniel Vetter * 2933c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. This implements the 2nd 2934c8e32cc1SDaniel Vetter * version of the cursor ioctl, which allows userspace to additionally specify 2935c8e32cc1SDaniel Vetter * the hotspot of the pointer. 2936c8e32cc1SDaniel Vetter * 2937c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2938c8e32cc1SDaniel Vetter * 2939c8e32cc1SDaniel Vetter * Returns: 29401a498633SDaniel Vetter * Zero on success, negative errno on failure. 2941c8e32cc1SDaniel Vetter */ 29424c813d4dSDave Airlie int drm_mode_cursor2_ioctl(struct drm_device *dev, 29434c813d4dSDave Airlie void *data, struct drm_file *file_priv) 29444c813d4dSDave Airlie { 29454c813d4dSDave Airlie struct drm_mode_cursor2 *req = data; 29464dfd909fSThierry Reding 29474c813d4dSDave Airlie return drm_mode_cursor_common(dev, req, file_priv); 2948f453ba04SDave Airlie } 2949f453ba04SDave Airlie 2950c8e32cc1SDaniel Vetter /** 2951c8e32cc1SDaniel Vetter * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description 2952c8e32cc1SDaniel Vetter * @bpp: bits per pixels 2953c8e32cc1SDaniel Vetter * @depth: bit depth per pixel 2954c8e32cc1SDaniel Vetter * 2955c8e32cc1SDaniel Vetter * Computes a drm fourcc pixel format code for the given @bpp/@depth values. 2956c8e32cc1SDaniel Vetter * Useful in fbdev emulation code, since that deals in those values. 2957c8e32cc1SDaniel Vetter */ 2958308e5bcbSJesse Barnes uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) 2959308e5bcbSJesse Barnes { 2960308e5bcbSJesse Barnes uint32_t fmt; 2961308e5bcbSJesse Barnes 2962308e5bcbSJesse Barnes switch (bpp) { 2963308e5bcbSJesse Barnes case 8: 2964d84f031bSVille Syrjälä fmt = DRM_FORMAT_C8; 2965308e5bcbSJesse Barnes break; 2966308e5bcbSJesse Barnes case 16: 2967308e5bcbSJesse Barnes if (depth == 15) 296804b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB1555; 2969308e5bcbSJesse Barnes else 297004b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB565; 2971308e5bcbSJesse Barnes break; 2972308e5bcbSJesse Barnes case 24: 297304b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB888; 2974308e5bcbSJesse Barnes break; 2975308e5bcbSJesse Barnes case 32: 2976308e5bcbSJesse Barnes if (depth == 24) 297704b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 2978308e5bcbSJesse Barnes else if (depth == 30) 297904b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB2101010; 2980308e5bcbSJesse Barnes else 298104b3924dSVille Syrjälä fmt = DRM_FORMAT_ARGB8888; 2982308e5bcbSJesse Barnes break; 2983308e5bcbSJesse Barnes default: 298404b3924dSVille Syrjälä DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); 298504b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 2986308e5bcbSJesse Barnes break; 2987308e5bcbSJesse Barnes } 2988308e5bcbSJesse Barnes 2989308e5bcbSJesse Barnes return fmt; 2990308e5bcbSJesse Barnes } 2991308e5bcbSJesse Barnes EXPORT_SYMBOL(drm_mode_legacy_fb_format); 2992308e5bcbSJesse Barnes 2993f453ba04SDave Airlie /** 2994f453ba04SDave Airlie * drm_mode_addfb - add an FB to the graphics configuration 2995065a50edSDaniel Vetter * @dev: drm device for the ioctl 2996065a50edSDaniel Vetter * @data: data pointer for the ioctl 2997065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2998f453ba04SDave Airlie * 2999c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request. This is the 3000209f5527SChuck Ebbert * original addfb ioctl which only supported RGB formats. 3001f453ba04SDave Airlie * 3002f453ba04SDave Airlie * Called by the user via ioctl. 3003f453ba04SDave Airlie * 3004c8e32cc1SDaniel Vetter * Returns: 30051a498633SDaniel Vetter * Zero on success, negative errno on failure. 3006f453ba04SDave Airlie */ 3007f453ba04SDave Airlie int drm_mode_addfb(struct drm_device *dev, 3008f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3009f453ba04SDave Airlie { 3010308e5bcbSJesse Barnes struct drm_mode_fb_cmd *or = data; 3011308e5bcbSJesse Barnes struct drm_mode_fb_cmd2 r = {}; 3012228f2cb3SChuck Ebbert int ret; 3013308e5bcbSJesse Barnes 3014228f2cb3SChuck Ebbert /* convert to new format and call new ioctl */ 3015308e5bcbSJesse Barnes r.fb_id = or->fb_id; 3016308e5bcbSJesse Barnes r.width = or->width; 3017308e5bcbSJesse Barnes r.height = or->height; 3018308e5bcbSJesse Barnes r.pitches[0] = or->pitch; 3019308e5bcbSJesse Barnes r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); 3020308e5bcbSJesse Barnes r.handles[0] = or->handle; 3021308e5bcbSJesse Barnes 3022228f2cb3SChuck Ebbert ret = drm_mode_addfb2(dev, &r, file_priv); 3023228f2cb3SChuck Ebbert if (ret) 3024228f2cb3SChuck Ebbert return ret; 3025308e5bcbSJesse Barnes 3026228f2cb3SChuck Ebbert or->fb_id = r.fb_id; 30274b096ac1SDaniel Vetter 3028baf698b0SDaniel Vetter return 0; 3029308e5bcbSJesse Barnes } 3030308e5bcbSJesse Barnes 3031cff91b62SVille Syrjälä static int format_check(const struct drm_mode_fb_cmd2 *r) 3032935b5977SVille Syrjälä { 3033935b5977SVille Syrjälä uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; 3034935b5977SVille Syrjälä 3035935b5977SVille Syrjälä switch (format) { 3036935b5977SVille Syrjälä case DRM_FORMAT_C8: 3037935b5977SVille Syrjälä case DRM_FORMAT_RGB332: 3038935b5977SVille Syrjälä case DRM_FORMAT_BGR233: 3039935b5977SVille Syrjälä case DRM_FORMAT_XRGB4444: 3040935b5977SVille Syrjälä case DRM_FORMAT_XBGR4444: 3041935b5977SVille Syrjälä case DRM_FORMAT_RGBX4444: 3042935b5977SVille Syrjälä case DRM_FORMAT_BGRX4444: 3043935b5977SVille Syrjälä case DRM_FORMAT_ARGB4444: 3044935b5977SVille Syrjälä case DRM_FORMAT_ABGR4444: 3045935b5977SVille Syrjälä case DRM_FORMAT_RGBA4444: 3046935b5977SVille Syrjälä case DRM_FORMAT_BGRA4444: 3047935b5977SVille Syrjälä case DRM_FORMAT_XRGB1555: 3048935b5977SVille Syrjälä case DRM_FORMAT_XBGR1555: 3049935b5977SVille Syrjälä case DRM_FORMAT_RGBX5551: 3050935b5977SVille Syrjälä case DRM_FORMAT_BGRX5551: 3051935b5977SVille Syrjälä case DRM_FORMAT_ARGB1555: 3052935b5977SVille Syrjälä case DRM_FORMAT_ABGR1555: 3053935b5977SVille Syrjälä case DRM_FORMAT_RGBA5551: 3054935b5977SVille Syrjälä case DRM_FORMAT_BGRA5551: 3055935b5977SVille Syrjälä case DRM_FORMAT_RGB565: 3056935b5977SVille Syrjälä case DRM_FORMAT_BGR565: 3057935b5977SVille Syrjälä case DRM_FORMAT_RGB888: 3058935b5977SVille Syrjälä case DRM_FORMAT_BGR888: 3059935b5977SVille Syrjälä case DRM_FORMAT_XRGB8888: 3060935b5977SVille Syrjälä case DRM_FORMAT_XBGR8888: 3061935b5977SVille Syrjälä case DRM_FORMAT_RGBX8888: 3062935b5977SVille Syrjälä case DRM_FORMAT_BGRX8888: 3063935b5977SVille Syrjälä case DRM_FORMAT_ARGB8888: 3064935b5977SVille Syrjälä case DRM_FORMAT_ABGR8888: 3065935b5977SVille Syrjälä case DRM_FORMAT_RGBA8888: 3066935b5977SVille Syrjälä case DRM_FORMAT_BGRA8888: 3067935b5977SVille Syrjälä case DRM_FORMAT_XRGB2101010: 3068935b5977SVille Syrjälä case DRM_FORMAT_XBGR2101010: 3069935b5977SVille Syrjälä case DRM_FORMAT_RGBX1010102: 3070935b5977SVille Syrjälä case DRM_FORMAT_BGRX1010102: 3071935b5977SVille Syrjälä case DRM_FORMAT_ARGB2101010: 3072935b5977SVille Syrjälä case DRM_FORMAT_ABGR2101010: 3073935b5977SVille Syrjälä case DRM_FORMAT_RGBA1010102: 3074935b5977SVille Syrjälä case DRM_FORMAT_BGRA1010102: 3075935b5977SVille Syrjälä case DRM_FORMAT_YUYV: 3076935b5977SVille Syrjälä case DRM_FORMAT_YVYU: 3077935b5977SVille Syrjälä case DRM_FORMAT_UYVY: 3078935b5977SVille Syrjälä case DRM_FORMAT_VYUY: 3079935b5977SVille Syrjälä case DRM_FORMAT_AYUV: 3080935b5977SVille Syrjälä case DRM_FORMAT_NV12: 3081935b5977SVille Syrjälä case DRM_FORMAT_NV21: 3082935b5977SVille Syrjälä case DRM_FORMAT_NV16: 3083935b5977SVille Syrjälä case DRM_FORMAT_NV61: 3084ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 3085ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 3086935b5977SVille Syrjälä case DRM_FORMAT_YUV410: 3087935b5977SVille Syrjälä case DRM_FORMAT_YVU410: 3088935b5977SVille Syrjälä case DRM_FORMAT_YUV411: 3089935b5977SVille Syrjälä case DRM_FORMAT_YVU411: 3090935b5977SVille Syrjälä case DRM_FORMAT_YUV420: 3091935b5977SVille Syrjälä case DRM_FORMAT_YVU420: 3092935b5977SVille Syrjälä case DRM_FORMAT_YUV422: 3093935b5977SVille Syrjälä case DRM_FORMAT_YVU422: 3094935b5977SVille Syrjälä case DRM_FORMAT_YUV444: 3095935b5977SVille Syrjälä case DRM_FORMAT_YVU444: 3096935b5977SVille Syrjälä return 0; 3097935b5977SVille Syrjälä default: 309823c453a4SVille Syrjälä DRM_DEBUG_KMS("invalid pixel format %s\n", 309923c453a4SVille Syrjälä drm_get_format_name(r->pixel_format)); 3100935b5977SVille Syrjälä return -EINVAL; 3101935b5977SVille Syrjälä } 3102935b5977SVille Syrjälä } 3103935b5977SVille Syrjälä 3104cff91b62SVille Syrjälä static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) 3105d1b45d5fSVille Syrjälä { 3106d1b45d5fSVille Syrjälä int ret, hsub, vsub, num_planes, i; 3107d1b45d5fSVille Syrjälä 3108d1b45d5fSVille Syrjälä ret = format_check(r); 3109d1b45d5fSVille Syrjälä if (ret) { 31106ba6d03eSVille Syrjälä DRM_DEBUG_KMS("bad framebuffer format %s\n", 31116ba6d03eSVille Syrjälä drm_get_format_name(r->pixel_format)); 3112d1b45d5fSVille Syrjälä return ret; 3113d1b45d5fSVille Syrjälä } 3114d1b45d5fSVille Syrjälä 3115d1b45d5fSVille Syrjälä hsub = drm_format_horz_chroma_subsampling(r->pixel_format); 3116d1b45d5fSVille Syrjälä vsub = drm_format_vert_chroma_subsampling(r->pixel_format); 3117d1b45d5fSVille Syrjälä num_planes = drm_format_num_planes(r->pixel_format); 3118d1b45d5fSVille Syrjälä 3119d1b45d5fSVille Syrjälä if (r->width == 0 || r->width % hsub) { 3120209f5527SChuck Ebbert DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); 3121d1b45d5fSVille Syrjälä return -EINVAL; 3122d1b45d5fSVille Syrjälä } 3123d1b45d5fSVille Syrjälä 3124d1b45d5fSVille Syrjälä if (r->height == 0 || r->height % vsub) { 31251aa1b11cSDave Airlie DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); 3126d1b45d5fSVille Syrjälä return -EINVAL; 3127d1b45d5fSVille Syrjälä } 3128d1b45d5fSVille Syrjälä 3129d1b45d5fSVille Syrjälä for (i = 0; i < num_planes; i++) { 3130d1b45d5fSVille Syrjälä unsigned int width = r->width / (i != 0 ? hsub : 1); 3131b180b5d1SVille Syrjälä unsigned int height = r->height / (i != 0 ? vsub : 1); 3132b180b5d1SVille Syrjälä unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); 3133d1b45d5fSVille Syrjälä 3134d1b45d5fSVille Syrjälä if (!r->handles[i]) { 31351aa1b11cSDave Airlie DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); 3136d1b45d5fSVille Syrjälä return -EINVAL; 3137d1b45d5fSVille Syrjälä } 3138d1b45d5fSVille Syrjälä 3139b180b5d1SVille Syrjälä if ((uint64_t) width * cpp > UINT_MAX) 3140b180b5d1SVille Syrjälä return -ERANGE; 3141b180b5d1SVille Syrjälä 3142b180b5d1SVille Syrjälä if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) 3143b180b5d1SVille Syrjälä return -ERANGE; 3144b180b5d1SVille Syrjälä 3145b180b5d1SVille Syrjälä if (r->pitches[i] < width * cpp) { 31461aa1b11cSDave Airlie DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); 3147d1b45d5fSVille Syrjälä return -EINVAL; 3148d1b45d5fSVille Syrjälä } 3149e3eb3250SRob Clark 3150e3eb3250SRob Clark if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { 3151e3eb3250SRob Clark DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", 3152e3eb3250SRob Clark r->modifier[i], i); 3153e3eb3250SRob Clark return -EINVAL; 3154e3eb3250SRob Clark } 3155570655b0SRob Clark 3156570655b0SRob Clark /* modifier specific checks: */ 3157570655b0SRob Clark switch (r->modifier[i]) { 3158570655b0SRob Clark case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: 3159570655b0SRob Clark /* NOTE: the pitch restriction may be lifted later if it turns 3160570655b0SRob Clark * out that no hw has this restriction: 3161570655b0SRob Clark */ 3162570655b0SRob Clark if (r->pixel_format != DRM_FORMAT_NV12 || 3163570655b0SRob Clark width % 128 || height % 32 || 3164570655b0SRob Clark r->pitches[i] % 128) { 3165570655b0SRob Clark DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); 3166570655b0SRob Clark return -EINVAL; 3167570655b0SRob Clark } 3168570655b0SRob Clark break; 3169570655b0SRob Clark 3170570655b0SRob Clark default: 3171570655b0SRob Clark break; 3172570655b0SRob Clark } 3173d1b45d5fSVille Syrjälä } 3174d1b45d5fSVille Syrjälä 3175bbe16a40SDaniel Vetter for (i = num_planes; i < 4; i++) { 3176bbe16a40SDaniel Vetter if (r->modifier[i]) { 3177bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); 3178bbe16a40SDaniel Vetter return -EINVAL; 3179bbe16a40SDaniel Vetter } 3180bbe16a40SDaniel Vetter 3181bbe16a40SDaniel Vetter /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ 3182bbe16a40SDaniel Vetter if (!(r->flags & DRM_MODE_FB_MODIFIERS)) 3183bbe16a40SDaniel Vetter continue; 3184bbe16a40SDaniel Vetter 3185bbe16a40SDaniel Vetter if (r->handles[i]) { 3186bbe16a40SDaniel Vetter DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); 3187bbe16a40SDaniel Vetter return -EINVAL; 3188bbe16a40SDaniel Vetter } 3189bbe16a40SDaniel Vetter 3190bbe16a40SDaniel Vetter if (r->pitches[i]) { 3191bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); 3192bbe16a40SDaniel Vetter return -EINVAL; 3193bbe16a40SDaniel Vetter } 3194bbe16a40SDaniel Vetter 3195bbe16a40SDaniel Vetter if (r->offsets[i]) { 3196bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); 3197bbe16a40SDaniel Vetter return -EINVAL; 3198bbe16a40SDaniel Vetter } 3199bbe16a40SDaniel Vetter } 3200bbe16a40SDaniel Vetter 3201d1b45d5fSVille Syrjälä return 0; 3202d1b45d5fSVille Syrjälä } 3203d1b45d5fSVille Syrjälä 32049a6f5130SChris Wilson static struct drm_framebuffer * 32059a6f5130SChris Wilson internal_framebuffer_create(struct drm_device *dev, 3206c394c2b0SMatt Roper struct drm_mode_fb_cmd2 *r, 3207c394c2b0SMatt Roper struct drm_file *file_priv) 3208c394c2b0SMatt Roper { 3209c394c2b0SMatt Roper struct drm_mode_config *config = &dev->mode_config; 3210c394c2b0SMatt Roper struct drm_framebuffer *fb; 3211c394c2b0SMatt Roper int ret; 3212c394c2b0SMatt Roper 3213e3eb3250SRob Clark if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { 3214c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); 3215c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3216c394c2b0SMatt Roper } 3217c394c2b0SMatt Roper 3218c394c2b0SMatt Roper if ((config->min_width > r->width) || (r->width > config->max_width)) { 3219c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", 3220c394c2b0SMatt Roper r->width, config->min_width, config->max_width); 3221c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3222c394c2b0SMatt Roper } 3223c394c2b0SMatt Roper if ((config->min_height > r->height) || (r->height > config->max_height)) { 3224c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", 3225c394c2b0SMatt Roper r->height, config->min_height, config->max_height); 3226c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3227c394c2b0SMatt Roper } 3228c394c2b0SMatt Roper 3229e3eb3250SRob Clark if (r->flags & DRM_MODE_FB_MODIFIERS && 3230e3eb3250SRob Clark !dev->mode_config.allow_fb_modifiers) { 3231e3eb3250SRob Clark DRM_DEBUG_KMS("driver does not support fb modifiers\n"); 3232e3eb3250SRob Clark return ERR_PTR(-EINVAL); 3233e3eb3250SRob Clark } 3234e3eb3250SRob Clark 3235c394c2b0SMatt Roper ret = framebuffer_check(r); 3236c394c2b0SMatt Roper if (ret) 3237c394c2b0SMatt Roper return ERR_PTR(ret); 3238c394c2b0SMatt Roper 3239c394c2b0SMatt Roper fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); 3240c394c2b0SMatt Roper if (IS_ERR(fb)) { 3241c394c2b0SMatt Roper DRM_DEBUG_KMS("could not create framebuffer\n"); 3242c394c2b0SMatt Roper return fb; 3243c394c2b0SMatt Roper } 3244c394c2b0SMatt Roper 3245c394c2b0SMatt Roper return fb; 3246c394c2b0SMatt Roper } 3247c394c2b0SMatt Roper 3248308e5bcbSJesse Barnes /** 3249308e5bcbSJesse Barnes * drm_mode_addfb2 - add an FB to the graphics configuration 3250065a50edSDaniel Vetter * @dev: drm device for the ioctl 3251065a50edSDaniel Vetter * @data: data pointer for the ioctl 3252065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3253308e5bcbSJesse Barnes * 3254c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request with format. This is 3255c8e32cc1SDaniel Vetter * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers 3256c8e32cc1SDaniel Vetter * and uses fourcc codes as pixel format specifiers. 3257308e5bcbSJesse Barnes * 3258308e5bcbSJesse Barnes * Called by the user via ioctl. 3259308e5bcbSJesse Barnes * 3260c8e32cc1SDaniel Vetter * Returns: 32611a498633SDaniel Vetter * Zero on success, negative errno on failure. 3262308e5bcbSJesse Barnes */ 3263308e5bcbSJesse Barnes int drm_mode_addfb2(struct drm_device *dev, 3264308e5bcbSJesse Barnes void *data, struct drm_file *file_priv) 3265308e5bcbSJesse Barnes { 32669a6f5130SChris Wilson struct drm_mode_fb_cmd2 *r = data; 3267f453ba04SDave Airlie struct drm_framebuffer *fb; 3268f453ba04SDave Airlie 3269fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3270fb3b06c8SDave Airlie return -EINVAL; 3271fb3b06c8SDave Airlie 32729a6f5130SChris Wilson fb = internal_framebuffer_create(dev, r, file_priv); 3273c394c2b0SMatt Roper if (IS_ERR(fb)) 32744b096ac1SDaniel Vetter return PTR_ERR(fb); 3275f453ba04SDave Airlie 32769a6f5130SChris Wilson /* Transfer ownership to the filp for reaping on close */ 32779a6f5130SChris Wilson 32789a6f5130SChris Wilson DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 32799a6f5130SChris Wilson mutex_lock(&file_priv->fbs_lock); 32809a6f5130SChris Wilson r->fb_id = fb->base.id; 32819a6f5130SChris Wilson list_add(&fb->filp_head, &file_priv->fbs); 32829a6f5130SChris Wilson mutex_unlock(&file_priv->fbs_lock); 32839a6f5130SChris Wilson 3284c394c2b0SMatt Roper return 0; 3285f453ba04SDave Airlie } 3286f453ba04SDave Airlie 3287f453ba04SDave Airlie /** 3288f453ba04SDave Airlie * drm_mode_rmfb - remove an FB from the configuration 3289065a50edSDaniel Vetter * @dev: drm device for the ioctl 3290065a50edSDaniel Vetter * @data: data pointer for the ioctl 3291065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3292f453ba04SDave Airlie * 3293f453ba04SDave Airlie * Remove the FB specified by the user. 3294f453ba04SDave Airlie * 3295f453ba04SDave Airlie * Called by the user via ioctl. 3296f453ba04SDave Airlie * 3297c8e32cc1SDaniel Vetter * Returns: 32981a498633SDaniel Vetter * Zero on success, negative errno on failure. 3299f453ba04SDave Airlie */ 3300f453ba04SDave Airlie int drm_mode_rmfb(struct drm_device *dev, 3301f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3302f453ba04SDave Airlie { 3303f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 3304f453ba04SDave Airlie struct drm_framebuffer *fbl = NULL; 3305f453ba04SDave Airlie uint32_t *id = data; 3306f453ba04SDave Airlie int found = 0; 3307f453ba04SDave Airlie 3308fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3309fb3b06c8SDave Airlie return -EINVAL; 3310fb3b06c8SDave Airlie 33114b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 33122b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 33132b677e8cSDaniel Vetter fb = __drm_framebuffer_lookup(dev, *id); 33142b677e8cSDaniel Vetter if (!fb) 33152b677e8cSDaniel Vetter goto fail_lookup; 33162b677e8cSDaniel Vetter 3317f453ba04SDave Airlie list_for_each_entry(fbl, &file_priv->fbs, filp_head) 3318f453ba04SDave Airlie if (fb == fbl) 3319f453ba04SDave Airlie found = 1; 33202b677e8cSDaniel Vetter if (!found) 33212b677e8cSDaniel Vetter goto fail_lookup; 33222b677e8cSDaniel Vetter 33232b677e8cSDaniel Vetter /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ 33242b677e8cSDaniel Vetter __drm_framebuffer_unregister(dev, fb); 3325f453ba04SDave Airlie 33264b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 33272b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 33284b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 3329f453ba04SDave Airlie 33304b096ac1SDaniel Vetter drm_framebuffer_remove(fb); 33314b096ac1SDaniel Vetter 33322b677e8cSDaniel Vetter return 0; 33332b677e8cSDaniel Vetter 33342b677e8cSDaniel Vetter fail_lookup: 33352b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 33362b677e8cSDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 33372b677e8cSDaniel Vetter 333837c4e705SVille Syrjälä return -ENOENT; 3339f453ba04SDave Airlie } 3340f453ba04SDave Airlie 3341f453ba04SDave Airlie /** 3342f453ba04SDave Airlie * drm_mode_getfb - get FB info 3343065a50edSDaniel Vetter * @dev: drm device for the ioctl 3344065a50edSDaniel Vetter * @data: data pointer for the ioctl 3345065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3346f453ba04SDave Airlie * 3347f453ba04SDave Airlie * Lookup the FB given its ID and return info about it. 3348f453ba04SDave Airlie * 3349f453ba04SDave Airlie * Called by the user via ioctl. 3350f453ba04SDave Airlie * 3351c8e32cc1SDaniel Vetter * Returns: 33521a498633SDaniel Vetter * Zero on success, negative errno on failure. 3353f453ba04SDave Airlie */ 3354f453ba04SDave Airlie int drm_mode_getfb(struct drm_device *dev, 3355f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3356f453ba04SDave Airlie { 3357f453ba04SDave Airlie struct drm_mode_fb_cmd *r = data; 3358f453ba04SDave Airlie struct drm_framebuffer *fb; 335958c0dca1SDaniel Vetter int ret; 3360f453ba04SDave Airlie 3361fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3362fb3b06c8SDave Airlie return -EINVAL; 3363fb3b06c8SDave Airlie 3364786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, r->fb_id); 336558c0dca1SDaniel Vetter if (!fb) 336637c4e705SVille Syrjälä return -ENOENT; 3367f453ba04SDave Airlie 3368f453ba04SDave Airlie r->height = fb->height; 3369f453ba04SDave Airlie r->width = fb->width; 3370f453ba04SDave Airlie r->depth = fb->depth; 3371f453ba04SDave Airlie r->bpp = fb->bits_per_pixel; 337201f2c773SVille Syrjälä r->pitch = fb->pitches[0]; 3373101b96f3SDavid Herrmann if (fb->funcs->create_handle) { 337409f308f7SThomas Hellstrom if (file_priv->is_master || capable(CAP_SYS_ADMIN) || 337543683057SThomas Hellstrom drm_is_control_client(file_priv)) { 3376101b96f3SDavid Herrmann ret = fb->funcs->create_handle(fb, file_priv, 3377101b96f3SDavid Herrmann &r->handle); 3378101b96f3SDavid Herrmann } else { 3379101b96f3SDavid Herrmann /* GET_FB() is an unprivileged ioctl so we must not 3380101b96f3SDavid Herrmann * return a buffer-handle to non-master processes! For 3381101b96f3SDavid Herrmann * backwards-compatibility reasons, we cannot make 3382101b96f3SDavid Herrmann * GET_FB() privileged, so just return an invalid handle 3383101b96f3SDavid Herrmann * for non-masters. */ 3384101b96f3SDavid Herrmann r->handle = 0; 3385101b96f3SDavid Herrmann ret = 0; 3386101b96f3SDavid Herrmann } 3387101b96f3SDavid Herrmann } else { 3388af26ef3bSDaniel Vetter ret = -ENODEV; 3389101b96f3SDavid Herrmann } 3390f453ba04SDave Airlie 339158c0dca1SDaniel Vetter drm_framebuffer_unreference(fb); 339258c0dca1SDaniel Vetter 3393f453ba04SDave Airlie return ret; 3394f453ba04SDave Airlie } 3395f453ba04SDave Airlie 3396c8e32cc1SDaniel Vetter /** 3397c8e32cc1SDaniel Vetter * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB 3398c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3399c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3400c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3401c8e32cc1SDaniel Vetter * 3402c8e32cc1SDaniel Vetter * Lookup the FB and flush out the damaged area supplied by userspace as a clip 3403c8e32cc1SDaniel Vetter * rectangle list. Generic userspace which does frontbuffer rendering must call 3404c8e32cc1SDaniel Vetter * this ioctl to flush out the changes on manual-update display outputs, e.g. 3405c8e32cc1SDaniel Vetter * usb display-link, mipi manual update panels or edp panel self refresh modes. 3406c8e32cc1SDaniel Vetter * 3407c8e32cc1SDaniel Vetter * Modesetting drivers which always update the frontbuffer do not need to 3408c8e32cc1SDaniel Vetter * implement the corresponding ->dirty framebuffer callback. 3409c8e32cc1SDaniel Vetter * 3410c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3411c8e32cc1SDaniel Vetter * 3412c8e32cc1SDaniel Vetter * Returns: 34131a498633SDaniel Vetter * Zero on success, negative errno on failure. 3414c8e32cc1SDaniel Vetter */ 3415884840aaSJakob Bornecrantz int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 3416884840aaSJakob Bornecrantz void *data, struct drm_file *file_priv) 3417884840aaSJakob Bornecrantz { 3418884840aaSJakob Bornecrantz struct drm_clip_rect __user *clips_ptr; 3419884840aaSJakob Bornecrantz struct drm_clip_rect *clips = NULL; 3420884840aaSJakob Bornecrantz struct drm_mode_fb_dirty_cmd *r = data; 3421884840aaSJakob Bornecrantz struct drm_framebuffer *fb; 3422884840aaSJakob Bornecrantz unsigned flags; 3423884840aaSJakob Bornecrantz int num_clips; 34244a1b0714SLaurent Pinchart int ret; 3425884840aaSJakob Bornecrantz 3426fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3427fb3b06c8SDave Airlie return -EINVAL; 3428fb3b06c8SDave Airlie 3429786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, r->fb_id); 34304ccf097fSDaniel Vetter if (!fb) 343137c4e705SVille Syrjälä return -ENOENT; 3432884840aaSJakob Bornecrantz 3433884840aaSJakob Bornecrantz num_clips = r->num_clips; 343481f6c7f8SVille Syrjälä clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; 3435884840aaSJakob Bornecrantz 3436884840aaSJakob Bornecrantz if (!num_clips != !clips_ptr) { 3437884840aaSJakob Bornecrantz ret = -EINVAL; 3438884840aaSJakob Bornecrantz goto out_err1; 3439884840aaSJakob Bornecrantz } 3440884840aaSJakob Bornecrantz 3441884840aaSJakob Bornecrantz flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; 3442884840aaSJakob Bornecrantz 3443884840aaSJakob Bornecrantz /* If userspace annotates copy, clips must come in pairs */ 3444884840aaSJakob Bornecrantz if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { 3445884840aaSJakob Bornecrantz ret = -EINVAL; 3446884840aaSJakob Bornecrantz goto out_err1; 3447884840aaSJakob Bornecrantz } 3448884840aaSJakob Bornecrantz 3449884840aaSJakob Bornecrantz if (num_clips && clips_ptr) { 3450a5cd3351SXi Wang if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { 3451a5cd3351SXi Wang ret = -EINVAL; 3452a5cd3351SXi Wang goto out_err1; 3453a5cd3351SXi Wang } 3454bd3f0ff9SThierry Reding clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); 3455884840aaSJakob Bornecrantz if (!clips) { 3456884840aaSJakob Bornecrantz ret = -ENOMEM; 3457884840aaSJakob Bornecrantz goto out_err1; 3458884840aaSJakob Bornecrantz } 3459884840aaSJakob Bornecrantz 3460884840aaSJakob Bornecrantz ret = copy_from_user(clips, clips_ptr, 3461884840aaSJakob Bornecrantz num_clips * sizeof(*clips)); 3462e902a358SDan Carpenter if (ret) { 3463e902a358SDan Carpenter ret = -EFAULT; 3464884840aaSJakob Bornecrantz goto out_err2; 3465884840aaSJakob Bornecrantz } 3466e902a358SDan Carpenter } 3467884840aaSJakob Bornecrantz 3468884840aaSJakob Bornecrantz if (fb->funcs->dirty) { 346902b00162SThomas Hellstrom ret = fb->funcs->dirty(fb, file_priv, flags, r->color, 347002b00162SThomas Hellstrom clips, num_clips); 3471884840aaSJakob Bornecrantz } else { 3472884840aaSJakob Bornecrantz ret = -ENOSYS; 3473884840aaSJakob Bornecrantz } 3474884840aaSJakob Bornecrantz 3475884840aaSJakob Bornecrantz out_err2: 3476884840aaSJakob Bornecrantz kfree(clips); 3477884840aaSJakob Bornecrantz out_err1: 34784ccf097fSDaniel Vetter drm_framebuffer_unreference(fb); 34794ccf097fSDaniel Vetter 3480884840aaSJakob Bornecrantz return ret; 3481884840aaSJakob Bornecrantz } 3482884840aaSJakob Bornecrantz 3483884840aaSJakob Bornecrantz 3484f453ba04SDave Airlie /** 3485f453ba04SDave Airlie * drm_fb_release - remove and free the FBs on this file 3486065a50edSDaniel Vetter * @priv: drm file for the ioctl 3487f453ba04SDave Airlie * 3488f453ba04SDave Airlie * Destroy all the FBs associated with @filp. 3489f453ba04SDave Airlie * 3490f453ba04SDave Airlie * Called by the user via ioctl. 3491f453ba04SDave Airlie * 3492c8e32cc1SDaniel Vetter * Returns: 34931a498633SDaniel Vetter * Zero on success, negative errno on failure. 3494f453ba04SDave Airlie */ 3495ea39f835SKristian Høgsberg void drm_fb_release(struct drm_file *priv) 3496f453ba04SDave Airlie { 3497f453ba04SDave Airlie struct drm_device *dev = priv->minor->dev; 3498f453ba04SDave Airlie struct drm_framebuffer *fb, *tfb; 3499f453ba04SDave Airlie 35001b116297SDaniel Vetter /* 35011b116297SDaniel Vetter * When the file gets released that means no one else can access the fb 3502e2db726bSMartin Peres * list any more, so no need to grab fpriv->fbs_lock. And we need to 35031b116297SDaniel Vetter * avoid upsetting lockdep since the universal cursor code adds a 35041b116297SDaniel Vetter * framebuffer while holding mutex locks. 35051b116297SDaniel Vetter * 35061b116297SDaniel Vetter * Note that a real deadlock between fpriv->fbs_lock and the modeset 35071b116297SDaniel Vetter * locks is impossible here since no one else but this function can get 35081b116297SDaniel Vetter * at it any more. 35091b116297SDaniel Vetter */ 3510f453ba04SDave Airlie list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { 35112b677e8cSDaniel Vetter 35122b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 35132b677e8cSDaniel Vetter /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ 35142b677e8cSDaniel Vetter __drm_framebuffer_unregister(dev, fb); 35152b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 35162b677e8cSDaniel Vetter 35174b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 35182b677e8cSDaniel Vetter 35192b677e8cSDaniel Vetter /* This will also drop the fpriv->fbs reference. */ 3520f7eff60eSRob Clark drm_framebuffer_remove(fb); 3521f453ba04SDave Airlie } 3522f453ba04SDave Airlie } 3523f453ba04SDave Airlie 3524c8e32cc1SDaniel Vetter /** 3525c8e32cc1SDaniel Vetter * drm_property_create - create a new property type 3526c8e32cc1SDaniel Vetter * @dev: drm device 3527c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3528c8e32cc1SDaniel Vetter * @name: name of the property 3529c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3530c8e32cc1SDaniel Vetter * 3531c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3532c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3533c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3534c8e32cc1SDaniel Vetter * 35353b5b9932SDamien Lespiau * Note that the DRM core keeps a per-device list of properties and that, if 35363b5b9932SDamien Lespiau * drm_mode_config_cleanup() is called, it will destroy all properties created 35373b5b9932SDamien Lespiau * by the driver. 35383b5b9932SDamien Lespiau * 3539c8e32cc1SDaniel Vetter * Returns: 3540c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3541c8e32cc1SDaniel Vetter */ 3542f453ba04SDave Airlie struct drm_property *drm_property_create(struct drm_device *dev, int flags, 3543f453ba04SDave Airlie const char *name, int num_values) 3544f453ba04SDave Airlie { 3545f453ba04SDave Airlie struct drm_property *property = NULL; 35466bfc56aaSVille Syrjälä int ret; 3547f453ba04SDave Airlie 3548f453ba04SDave Airlie property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); 3549f453ba04SDave Airlie if (!property) 3550f453ba04SDave Airlie return NULL; 3551f453ba04SDave Airlie 355298f75de4SRob Clark property->dev = dev; 355398f75de4SRob Clark 3554f453ba04SDave Airlie if (num_values) { 3555bd3f0ff9SThierry Reding property->values = kcalloc(num_values, sizeof(uint64_t), 3556bd3f0ff9SThierry Reding GFP_KERNEL); 3557f453ba04SDave Airlie if (!property->values) 3558f453ba04SDave Airlie goto fail; 3559f453ba04SDave Airlie } 3560f453ba04SDave Airlie 35616bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); 35626bfc56aaSVille Syrjälä if (ret) 35636bfc56aaSVille Syrjälä goto fail; 35646bfc56aaSVille Syrjälä 3565f453ba04SDave Airlie property->flags = flags; 3566f453ba04SDave Airlie property->num_values = num_values; 35673758b341SDaniel Vetter INIT_LIST_HEAD(&property->enum_list); 3568f453ba04SDave Airlie 3569471dd2efSVinson Lee if (name) { 3570f453ba04SDave Airlie strncpy(property->name, name, DRM_PROP_NAME_LEN); 3571471dd2efSVinson Lee property->name[DRM_PROP_NAME_LEN-1] = '\0'; 3572471dd2efSVinson Lee } 3573f453ba04SDave Airlie 3574f453ba04SDave Airlie list_add_tail(&property->head, &dev->mode_config.property_list); 35755ea22f24SRob Clark 35765ea22f24SRob Clark WARN_ON(!drm_property_type_valid(property)); 35775ea22f24SRob Clark 3578f453ba04SDave Airlie return property; 3579f453ba04SDave Airlie fail: 35806bfc56aaSVille Syrjälä kfree(property->values); 3581f453ba04SDave Airlie kfree(property); 3582f453ba04SDave Airlie return NULL; 3583f453ba04SDave Airlie } 3584f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_create); 3585f453ba04SDave Airlie 3586c8e32cc1SDaniel Vetter /** 35872aa9d2bcSThierry Reding * drm_property_create_enum - create a new enumeration property type 3588c8e32cc1SDaniel Vetter * @dev: drm device 3589c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3590c8e32cc1SDaniel Vetter * @name: name of the property 3591c8e32cc1SDaniel Vetter * @props: enumeration lists with property values 3592c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3593c8e32cc1SDaniel Vetter * 3594c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3595c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3596c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3597c8e32cc1SDaniel Vetter * 3598c8e32cc1SDaniel Vetter * Userspace is only allowed to set one of the predefined values for enumeration 3599c8e32cc1SDaniel Vetter * properties. 3600c8e32cc1SDaniel Vetter * 3601c8e32cc1SDaniel Vetter * Returns: 3602c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3603c8e32cc1SDaniel Vetter */ 36044a67d391SSascha Hauer struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 36054a67d391SSascha Hauer const char *name, 36064a67d391SSascha Hauer const struct drm_prop_enum_list *props, 36074a67d391SSascha Hauer int num_values) 36084a67d391SSascha Hauer { 36094a67d391SSascha Hauer struct drm_property *property; 36104a67d391SSascha Hauer int i, ret; 36114a67d391SSascha Hauer 36124a67d391SSascha Hauer flags |= DRM_MODE_PROP_ENUM; 36134a67d391SSascha Hauer 36144a67d391SSascha Hauer property = drm_property_create(dev, flags, name, num_values); 36154a67d391SSascha Hauer if (!property) 36164a67d391SSascha Hauer return NULL; 36174a67d391SSascha Hauer 36184a67d391SSascha Hauer for (i = 0; i < num_values; i++) { 36194a67d391SSascha Hauer ret = drm_property_add_enum(property, i, 36204a67d391SSascha Hauer props[i].type, 36214a67d391SSascha Hauer props[i].name); 36224a67d391SSascha Hauer if (ret) { 36234a67d391SSascha Hauer drm_property_destroy(dev, property); 36244a67d391SSascha Hauer return NULL; 36254a67d391SSascha Hauer } 36264a67d391SSascha Hauer } 36274a67d391SSascha Hauer 36284a67d391SSascha Hauer return property; 36294a67d391SSascha Hauer } 36304a67d391SSascha Hauer EXPORT_SYMBOL(drm_property_create_enum); 36314a67d391SSascha Hauer 3632c8e32cc1SDaniel Vetter /** 36332aa9d2bcSThierry Reding * drm_property_create_bitmask - create a new bitmask property type 3634c8e32cc1SDaniel Vetter * @dev: drm device 3635c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3636c8e32cc1SDaniel Vetter * @name: name of the property 3637c8e32cc1SDaniel Vetter * @props: enumeration lists with property bitflags 3638295ee853SDaniel Vetter * @num_props: size of the @props array 3639295ee853SDaniel Vetter * @supported_bits: bitmask of all supported enumeration values 3640c8e32cc1SDaniel Vetter * 3641295ee853SDaniel Vetter * This creates a new bitmask drm property which can then be attached to a drm 3642c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3643c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3644c8e32cc1SDaniel Vetter * 3645c8e32cc1SDaniel Vetter * Compared to plain enumeration properties userspace is allowed to set any 3646c8e32cc1SDaniel Vetter * or'ed together combination of the predefined property bitflag values 3647c8e32cc1SDaniel Vetter * 3648c8e32cc1SDaniel Vetter * Returns: 3649c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3650c8e32cc1SDaniel Vetter */ 365149e27545SRob Clark struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 365249e27545SRob Clark int flags, const char *name, 365349e27545SRob Clark const struct drm_prop_enum_list *props, 36547689ffb3SVille Syrjälä int num_props, 36557689ffb3SVille Syrjälä uint64_t supported_bits) 365649e27545SRob Clark { 365749e27545SRob Clark struct drm_property *property; 36587689ffb3SVille Syrjälä int i, ret, index = 0; 36597689ffb3SVille Syrjälä int num_values = hweight64(supported_bits); 366049e27545SRob Clark 366149e27545SRob Clark flags |= DRM_MODE_PROP_BITMASK; 366249e27545SRob Clark 366349e27545SRob Clark property = drm_property_create(dev, flags, name, num_values); 366449e27545SRob Clark if (!property) 366549e27545SRob Clark return NULL; 36667689ffb3SVille Syrjälä for (i = 0; i < num_props; i++) { 36677689ffb3SVille Syrjälä if (!(supported_bits & (1ULL << props[i].type))) 36687689ffb3SVille Syrjälä continue; 366949e27545SRob Clark 36707689ffb3SVille Syrjälä if (WARN_ON(index >= num_values)) { 36717689ffb3SVille Syrjälä drm_property_destroy(dev, property); 36727689ffb3SVille Syrjälä return NULL; 36737689ffb3SVille Syrjälä } 36747689ffb3SVille Syrjälä 36757689ffb3SVille Syrjälä ret = drm_property_add_enum(property, index++, 367649e27545SRob Clark props[i].type, 367749e27545SRob Clark props[i].name); 367849e27545SRob Clark if (ret) { 367949e27545SRob Clark drm_property_destroy(dev, property); 368049e27545SRob Clark return NULL; 368149e27545SRob Clark } 368249e27545SRob Clark } 368349e27545SRob Clark 368449e27545SRob Clark return property; 368549e27545SRob Clark } 368649e27545SRob Clark EXPORT_SYMBOL(drm_property_create_bitmask); 368749e27545SRob Clark 3688ebc44cf3SRob Clark static struct drm_property *property_create_range(struct drm_device *dev, 3689ebc44cf3SRob Clark int flags, const char *name, 3690ebc44cf3SRob Clark uint64_t min, uint64_t max) 3691ebc44cf3SRob Clark { 3692ebc44cf3SRob Clark struct drm_property *property; 3693ebc44cf3SRob Clark 3694ebc44cf3SRob Clark property = drm_property_create(dev, flags, name, 2); 3695ebc44cf3SRob Clark if (!property) 3696ebc44cf3SRob Clark return NULL; 3697ebc44cf3SRob Clark 3698ebc44cf3SRob Clark property->values[0] = min; 3699ebc44cf3SRob Clark property->values[1] = max; 3700ebc44cf3SRob Clark 3701ebc44cf3SRob Clark return property; 3702ebc44cf3SRob Clark } 3703ebc44cf3SRob Clark 3704c8e32cc1SDaniel Vetter /** 3705960cd9d4SDaniel Vetter * drm_property_create_range - create a new unsigned ranged property type 3706c8e32cc1SDaniel Vetter * @dev: drm device 3707c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3708c8e32cc1SDaniel Vetter * @name: name of the property 3709c8e32cc1SDaniel Vetter * @min: minimum value of the property 3710c8e32cc1SDaniel Vetter * @max: maximum value of the property 3711c8e32cc1SDaniel Vetter * 3712c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3713c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3714c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3715c8e32cc1SDaniel Vetter * 3716960cd9d4SDaniel Vetter * Userspace is allowed to set any unsigned integer value in the (min, max) 3717960cd9d4SDaniel Vetter * range inclusive. 3718c8e32cc1SDaniel Vetter * 3719c8e32cc1SDaniel Vetter * Returns: 3720c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3721c8e32cc1SDaniel Vetter */ 3722d9bc3c02SSascha Hauer struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 3723d9bc3c02SSascha Hauer const char *name, 3724d9bc3c02SSascha Hauer uint64_t min, uint64_t max) 3725d9bc3c02SSascha Hauer { 3726ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, 3727ebc44cf3SRob Clark name, min, max); 3728d9bc3c02SSascha Hauer } 3729d9bc3c02SSascha Hauer EXPORT_SYMBOL(drm_property_create_range); 3730d9bc3c02SSascha Hauer 3731960cd9d4SDaniel Vetter /** 3732960cd9d4SDaniel Vetter * drm_property_create_signed_range - create a new signed ranged property type 3733960cd9d4SDaniel Vetter * @dev: drm device 3734960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3735960cd9d4SDaniel Vetter * @name: name of the property 3736960cd9d4SDaniel Vetter * @min: minimum value of the property 3737960cd9d4SDaniel Vetter * @max: maximum value of the property 3738960cd9d4SDaniel Vetter * 3739960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3740960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3741960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3742960cd9d4SDaniel Vetter * 3743960cd9d4SDaniel Vetter * Userspace is allowed to set any signed integer value in the (min, max) 3744960cd9d4SDaniel Vetter * range inclusive. 3745960cd9d4SDaniel Vetter * 3746960cd9d4SDaniel Vetter * Returns: 3747960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3748960cd9d4SDaniel Vetter */ 3749ebc44cf3SRob Clark struct drm_property *drm_property_create_signed_range(struct drm_device *dev, 3750ebc44cf3SRob Clark int flags, const char *name, 3751ebc44cf3SRob Clark int64_t min, int64_t max) 3752ebc44cf3SRob Clark { 3753ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, 3754ebc44cf3SRob Clark name, I642U64(min), I642U64(max)); 3755ebc44cf3SRob Clark } 3756ebc44cf3SRob Clark EXPORT_SYMBOL(drm_property_create_signed_range); 3757ebc44cf3SRob Clark 3758960cd9d4SDaniel Vetter /** 3759960cd9d4SDaniel Vetter * drm_property_create_object - create a new object property type 3760960cd9d4SDaniel Vetter * @dev: drm device 3761960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3762960cd9d4SDaniel Vetter * @name: name of the property 3763960cd9d4SDaniel Vetter * @type: object type from DRM_MODE_OBJECT_* defines 3764960cd9d4SDaniel Vetter * 3765960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3766960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3767960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3768960cd9d4SDaniel Vetter * 3769960cd9d4SDaniel Vetter * Userspace is only allowed to set this to any property value of the given 3770960cd9d4SDaniel Vetter * @type. Only useful for atomic properties, which is enforced. 3771960cd9d4SDaniel Vetter * 3772960cd9d4SDaniel Vetter * Returns: 3773960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3774960cd9d4SDaniel Vetter */ 377598f75de4SRob Clark struct drm_property *drm_property_create_object(struct drm_device *dev, 377698f75de4SRob Clark int flags, const char *name, uint32_t type) 377798f75de4SRob Clark { 377898f75de4SRob Clark struct drm_property *property; 377998f75de4SRob Clark 378098f75de4SRob Clark flags |= DRM_MODE_PROP_OBJECT; 378198f75de4SRob Clark 3782960cd9d4SDaniel Vetter if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) 3783960cd9d4SDaniel Vetter return NULL; 3784960cd9d4SDaniel Vetter 378598f75de4SRob Clark property = drm_property_create(dev, flags, name, 1); 378698f75de4SRob Clark if (!property) 378798f75de4SRob Clark return NULL; 378898f75de4SRob Clark 378998f75de4SRob Clark property->values[0] = type; 379098f75de4SRob Clark 379198f75de4SRob Clark return property; 379298f75de4SRob Clark } 379398f75de4SRob Clark EXPORT_SYMBOL(drm_property_create_object); 379498f75de4SRob Clark 3795c8e32cc1SDaniel Vetter /** 3796960cd9d4SDaniel Vetter * drm_property_create_bool - create a new boolean property type 3797960cd9d4SDaniel Vetter * @dev: drm device 3798960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3799960cd9d4SDaniel Vetter * @name: name of the property 3800960cd9d4SDaniel Vetter * 3801960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3802960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3803960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3804960cd9d4SDaniel Vetter * 3805960cd9d4SDaniel Vetter * This is implemented as a ranged property with only {0, 1} as valid values. 3806960cd9d4SDaniel Vetter * 3807960cd9d4SDaniel Vetter * Returns: 3808960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3809960cd9d4SDaniel Vetter */ 3810960cd9d4SDaniel Vetter struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, 3811960cd9d4SDaniel Vetter const char *name) 3812960cd9d4SDaniel Vetter { 3813960cd9d4SDaniel Vetter return drm_property_create_range(dev, flags, name, 0, 1); 3814960cd9d4SDaniel Vetter } 3815960cd9d4SDaniel Vetter EXPORT_SYMBOL(drm_property_create_bool); 3816960cd9d4SDaniel Vetter 3817960cd9d4SDaniel Vetter /** 3818c8e32cc1SDaniel Vetter * drm_property_add_enum - add a possible value to an enumeration property 3819c8e32cc1SDaniel Vetter * @property: enumeration property to change 3820c8e32cc1SDaniel Vetter * @index: index of the new enumeration 3821c8e32cc1SDaniel Vetter * @value: value of the new enumeration 3822c8e32cc1SDaniel Vetter * @name: symbolic name of the new enumeration 3823c8e32cc1SDaniel Vetter * 3824c8e32cc1SDaniel Vetter * This functions adds enumerations to a property. 3825c8e32cc1SDaniel Vetter * 3826c8e32cc1SDaniel Vetter * It's use is deprecated, drivers should use one of the more specific helpers 3827c8e32cc1SDaniel Vetter * to directly create the property with all enumerations already attached. 3828c8e32cc1SDaniel Vetter * 3829c8e32cc1SDaniel Vetter * Returns: 3830c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3831c8e32cc1SDaniel Vetter */ 3832f453ba04SDave Airlie int drm_property_add_enum(struct drm_property *property, int index, 3833f453ba04SDave Airlie uint64_t value, const char *name) 3834f453ba04SDave Airlie { 3835f453ba04SDave Airlie struct drm_property_enum *prop_enum; 3836f453ba04SDave Airlie 38375ea22f24SRob Clark if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 38385ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) 383949e27545SRob Clark return -EINVAL; 384049e27545SRob Clark 384149e27545SRob Clark /* 384249e27545SRob Clark * Bitmask enum properties have the additional constraint of values 384349e27545SRob Clark * from 0 to 63 384449e27545SRob Clark */ 38455ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && 38465ea22f24SRob Clark (value > 63)) 3847f453ba04SDave Airlie return -EINVAL; 3848f453ba04SDave Airlie 38493758b341SDaniel Vetter if (!list_empty(&property->enum_list)) { 38503758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 3851f453ba04SDave Airlie if (prop_enum->value == value) { 3852f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 3853f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 3854f453ba04SDave Airlie return 0; 3855f453ba04SDave Airlie } 3856f453ba04SDave Airlie } 3857f453ba04SDave Airlie } 3858f453ba04SDave Airlie 3859f453ba04SDave Airlie prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); 3860f453ba04SDave Airlie if (!prop_enum) 3861f453ba04SDave Airlie return -ENOMEM; 3862f453ba04SDave Airlie 3863f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 3864f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 3865f453ba04SDave Airlie prop_enum->value = value; 3866f453ba04SDave Airlie 3867f453ba04SDave Airlie property->values[index] = value; 38683758b341SDaniel Vetter list_add_tail(&prop_enum->head, &property->enum_list); 3869f453ba04SDave Airlie return 0; 3870f453ba04SDave Airlie } 3871f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_add_enum); 3872f453ba04SDave Airlie 3873c8e32cc1SDaniel Vetter /** 3874c8e32cc1SDaniel Vetter * drm_property_destroy - destroy a drm property 3875c8e32cc1SDaniel Vetter * @dev: drm device 3876c8e32cc1SDaniel Vetter * @property: property to destry 3877c8e32cc1SDaniel Vetter * 3878c8e32cc1SDaniel Vetter * This function frees a property including any attached resources like 3879c8e32cc1SDaniel Vetter * enumeration values. 3880c8e32cc1SDaniel Vetter */ 3881f453ba04SDave Airlie void drm_property_destroy(struct drm_device *dev, struct drm_property *property) 3882f453ba04SDave Airlie { 3883f453ba04SDave Airlie struct drm_property_enum *prop_enum, *pt; 3884f453ba04SDave Airlie 38853758b341SDaniel Vetter list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { 3886f453ba04SDave Airlie list_del(&prop_enum->head); 3887f453ba04SDave Airlie kfree(prop_enum); 3888f453ba04SDave Airlie } 3889f453ba04SDave Airlie 3890f453ba04SDave Airlie if (property->num_values) 3891f453ba04SDave Airlie kfree(property->values); 3892f453ba04SDave Airlie drm_mode_object_put(dev, &property->base); 3893f453ba04SDave Airlie list_del(&property->head); 3894f453ba04SDave Airlie kfree(property); 3895f453ba04SDave Airlie } 3896f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_destroy); 3897f453ba04SDave Airlie 3898c8e32cc1SDaniel Vetter /** 3899c8e32cc1SDaniel Vetter * drm_object_attach_property - attach a property to a modeset object 3900c8e32cc1SDaniel Vetter * @obj: drm modeset object 3901c8e32cc1SDaniel Vetter * @property: property to attach 3902c8e32cc1SDaniel Vetter * @init_val: initial value of the property 3903c8e32cc1SDaniel Vetter * 3904c8e32cc1SDaniel Vetter * This attaches the given property to the modeset object with the given initial 3905c8e32cc1SDaniel Vetter * value. Currently this function cannot fail since the properties are stored in 3906c8e32cc1SDaniel Vetter * a statically sized array. 3907c8e32cc1SDaniel Vetter */ 3908c543188aSPaulo Zanoni void drm_object_attach_property(struct drm_mode_object *obj, 3909c543188aSPaulo Zanoni struct drm_property *property, 3910c543188aSPaulo Zanoni uint64_t init_val) 3911c543188aSPaulo Zanoni { 39127f88a9beSPaulo Zanoni int count = obj->properties->count; 3913c543188aSPaulo Zanoni 39147f88a9beSPaulo Zanoni if (count == DRM_OBJECT_MAX_PROPERTY) { 39157f88a9beSPaulo Zanoni WARN(1, "Failed to attach object property (type: 0x%x). Please " 39167f88a9beSPaulo Zanoni "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " 39177f88a9beSPaulo Zanoni "you see this message on the same object type.\n", 39187f88a9beSPaulo Zanoni obj->type); 3919c543188aSPaulo Zanoni return; 3920c543188aSPaulo Zanoni } 3921c543188aSPaulo Zanoni 3922b17cd757SRob Clark obj->properties->properties[count] = property; 39237f88a9beSPaulo Zanoni obj->properties->values[count] = init_val; 39247f88a9beSPaulo Zanoni obj->properties->count++; 392588a48e29SRob Clark if (property->flags & DRM_MODE_PROP_ATOMIC) 392688a48e29SRob Clark obj->properties->atomic_count++; 3927c543188aSPaulo Zanoni } 3928c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_attach_property); 3929c543188aSPaulo Zanoni 3930c8e32cc1SDaniel Vetter /** 3931c8e32cc1SDaniel Vetter * drm_object_property_set_value - set the value of a property 3932c8e32cc1SDaniel Vetter * @obj: drm mode object to set property value for 3933c8e32cc1SDaniel Vetter * @property: property to set 3934c8e32cc1SDaniel Vetter * @val: value the property should be set to 3935c8e32cc1SDaniel Vetter * 3936c8e32cc1SDaniel Vetter * This functions sets a given property on a given object. This function only 3937c8e32cc1SDaniel Vetter * changes the software state of the property, it does not call into the 3938c8e32cc1SDaniel Vetter * driver's ->set_property callback. 3939c8e32cc1SDaniel Vetter * 3940c8e32cc1SDaniel Vetter * Returns: 3941c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3942c8e32cc1SDaniel Vetter */ 3943c543188aSPaulo Zanoni int drm_object_property_set_value(struct drm_mode_object *obj, 3944c543188aSPaulo Zanoni struct drm_property *property, uint64_t val) 3945c543188aSPaulo Zanoni { 3946c543188aSPaulo Zanoni int i; 3947c543188aSPaulo Zanoni 39487f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 3949b17cd757SRob Clark if (obj->properties->properties[i] == property) { 3950c543188aSPaulo Zanoni obj->properties->values[i] = val; 3951c543188aSPaulo Zanoni return 0; 3952c543188aSPaulo Zanoni } 3953c543188aSPaulo Zanoni } 3954c543188aSPaulo Zanoni 3955c543188aSPaulo Zanoni return -EINVAL; 3956c543188aSPaulo Zanoni } 3957c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_set_value); 3958c543188aSPaulo Zanoni 3959c8e32cc1SDaniel Vetter /** 3960c8e32cc1SDaniel Vetter * drm_object_property_get_value - retrieve the value of a property 3961c8e32cc1SDaniel Vetter * @obj: drm mode object to get property value from 3962c8e32cc1SDaniel Vetter * @property: property to retrieve 3963c8e32cc1SDaniel Vetter * @val: storage for the property value 3964c8e32cc1SDaniel Vetter * 3965c8e32cc1SDaniel Vetter * This function retrieves the softare state of the given property for the given 3966c8e32cc1SDaniel Vetter * property. Since there is no driver callback to retrieve the current property 3967c8e32cc1SDaniel Vetter * value this might be out of sync with the hardware, depending upon the driver 3968c8e32cc1SDaniel Vetter * and property. 3969c8e32cc1SDaniel Vetter * 3970c8e32cc1SDaniel Vetter * Returns: 3971c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3972c8e32cc1SDaniel Vetter */ 3973c543188aSPaulo Zanoni int drm_object_property_get_value(struct drm_mode_object *obj, 3974c543188aSPaulo Zanoni struct drm_property *property, uint64_t *val) 3975c543188aSPaulo Zanoni { 3976c543188aSPaulo Zanoni int i; 3977c543188aSPaulo Zanoni 397888a48e29SRob Clark /* read-only properties bypass atomic mechanism and still store 397988a48e29SRob Clark * their value in obj->properties->values[].. mostly to avoid 398088a48e29SRob Clark * having to deal w/ EDID and similar props in atomic paths: 398188a48e29SRob Clark */ 398288a48e29SRob Clark if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && 398388a48e29SRob Clark !(property->flags & DRM_MODE_PROP_IMMUTABLE)) 398488a48e29SRob Clark return drm_atomic_get_property(obj, property, val); 398588a48e29SRob Clark 39867f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 3987b17cd757SRob Clark if (obj->properties->properties[i] == property) { 3988c543188aSPaulo Zanoni *val = obj->properties->values[i]; 3989c543188aSPaulo Zanoni return 0; 3990c543188aSPaulo Zanoni } 3991c543188aSPaulo Zanoni } 3992c543188aSPaulo Zanoni 3993c543188aSPaulo Zanoni return -EINVAL; 3994c543188aSPaulo Zanoni } 3995c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_get_value); 3996c543188aSPaulo Zanoni 3997c8e32cc1SDaniel Vetter /** 39981a498633SDaniel Vetter * drm_mode_getproperty_ioctl - get the property metadata 3999c8e32cc1SDaniel Vetter * @dev: DRM device 4000c8e32cc1SDaniel Vetter * @data: ioctl data 4001c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4002c8e32cc1SDaniel Vetter * 40031a498633SDaniel Vetter * This function retrieves the metadata for a given property, like the different 40041a498633SDaniel Vetter * possible values for an enum property or the limits for a range property. 40051a498633SDaniel Vetter * 40061a498633SDaniel Vetter * Blob properties are special 4007c8e32cc1SDaniel Vetter * 4008c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4009c8e32cc1SDaniel Vetter * 4010c8e32cc1SDaniel Vetter * Returns: 40111a498633SDaniel Vetter * Zero on success, negative errno on failure. 4012c8e32cc1SDaniel Vetter */ 4013f453ba04SDave Airlie int drm_mode_getproperty_ioctl(struct drm_device *dev, 4014f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4015f453ba04SDave Airlie { 4016f453ba04SDave Airlie struct drm_mode_get_property *out_resp = data; 4017f453ba04SDave Airlie struct drm_property *property; 4018f453ba04SDave Airlie int enum_count = 0; 4019f453ba04SDave Airlie int value_count = 0; 4020f453ba04SDave Airlie int ret = 0, i; 4021f453ba04SDave Airlie int copied; 4022f453ba04SDave Airlie struct drm_property_enum *prop_enum; 4023f453ba04SDave Airlie struct drm_mode_property_enum __user *enum_ptr; 4024f453ba04SDave Airlie uint64_t __user *values_ptr; 4025f453ba04SDave Airlie 4026fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4027fb3b06c8SDave Airlie return -EINVAL; 4028fb3b06c8SDave Airlie 402984849903SDaniel Vetter drm_modeset_lock_all(dev); 4030a2b34e22SRob Clark property = drm_property_find(dev, out_resp->prop_id); 4031a2b34e22SRob Clark if (!property) { 4032f27657f2SVille Syrjälä ret = -ENOENT; 4033f453ba04SDave Airlie goto done; 4034f453ba04SDave Airlie } 4035f453ba04SDave Airlie 40365ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 40375ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 40383758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) 4039f453ba04SDave Airlie enum_count++; 4040f453ba04SDave Airlie } 4041f453ba04SDave Airlie 4042f453ba04SDave Airlie value_count = property->num_values; 4043f453ba04SDave Airlie 4044f453ba04SDave Airlie strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); 4045f453ba04SDave Airlie out_resp->name[DRM_PROP_NAME_LEN-1] = 0; 4046f453ba04SDave Airlie out_resp->flags = property->flags; 4047f453ba04SDave Airlie 4048f453ba04SDave Airlie if ((out_resp->count_values >= value_count) && value_count) { 404981f6c7f8SVille Syrjälä values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; 4050f453ba04SDave Airlie for (i = 0; i < value_count; i++) { 4051f453ba04SDave Airlie if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { 4052f453ba04SDave Airlie ret = -EFAULT; 4053f453ba04SDave Airlie goto done; 4054f453ba04SDave Airlie } 4055f453ba04SDave Airlie } 4056f453ba04SDave Airlie } 4057f453ba04SDave Airlie out_resp->count_values = value_count; 4058f453ba04SDave Airlie 40595ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 40605ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 4061f453ba04SDave Airlie if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { 4062f453ba04SDave Airlie copied = 0; 406381f6c7f8SVille Syrjälä enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; 40643758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 4065f453ba04SDave Airlie 4066f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { 4067f453ba04SDave Airlie ret = -EFAULT; 4068f453ba04SDave Airlie goto done; 4069f453ba04SDave Airlie } 4070f453ba04SDave Airlie 4071f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].name, 4072f453ba04SDave Airlie &prop_enum->name, DRM_PROP_NAME_LEN)) { 4073f453ba04SDave Airlie ret = -EFAULT; 4074f453ba04SDave Airlie goto done; 4075f453ba04SDave Airlie } 4076f453ba04SDave Airlie copied++; 4077f453ba04SDave Airlie } 4078f453ba04SDave Airlie } 4079f453ba04SDave Airlie out_resp->count_enum_blobs = enum_count; 4080f453ba04SDave Airlie } 4081f453ba04SDave Airlie 40823758b341SDaniel Vetter /* 40833758b341SDaniel Vetter * NOTE: The idea seems to have been to use this to read all the blob 40843758b341SDaniel Vetter * property values. But nothing ever added them to the corresponding 40853758b341SDaniel Vetter * list, userspace always used the special-purpose get_blob ioctl to 40863758b341SDaniel Vetter * read the value for a blob property. It also doesn't make a lot of 40873758b341SDaniel Vetter * sense to return values here when everything else is just metadata for 40883758b341SDaniel Vetter * the property itself. 40893758b341SDaniel Vetter */ 40903758b341SDaniel Vetter if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 40913758b341SDaniel Vetter out_resp->count_enum_blobs = 0; 4092f453ba04SDave Airlie done: 409384849903SDaniel Vetter drm_modeset_unlock_all(dev); 4094f453ba04SDave Airlie return ret; 4095f453ba04SDave Airlie } 4096f453ba04SDave Airlie 409799531d9bSDaniel Stone /** 409899531d9bSDaniel Stone * drm_property_create_blob - Create new blob property 409999531d9bSDaniel Stone * 410099531d9bSDaniel Stone * Creates a new blob property for a specified DRM device, optionally 410199531d9bSDaniel Stone * copying data. 410299531d9bSDaniel Stone * 410399531d9bSDaniel Stone * @dev: DRM device to create property for 410499531d9bSDaniel Stone * @length: Length to allocate for blob data 410599531d9bSDaniel Stone * @data: If specified, copies data into blob 410610e8cb7eSDaniel Stone * 410710e8cb7eSDaniel Stone * Returns: 410810e8cb7eSDaniel Stone * New blob property with a single reference on success, or an ERR_PTR 410910e8cb7eSDaniel Stone * value on failure. 411099531d9bSDaniel Stone */ 41116bcacf51SDaniel Stone struct drm_property_blob * 4112ecbbe59bSThierry Reding drm_property_create_blob(struct drm_device *dev, size_t length, 411312e6cecdSThierry Reding const void *data) 4114f453ba04SDave Airlie { 4115f453ba04SDave Airlie struct drm_property_blob *blob; 41166bfc56aaSVille Syrjälä int ret; 4117f453ba04SDave Airlie 411899531d9bSDaniel Stone if (!length) 411910e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 4120f453ba04SDave Airlie 4121f453ba04SDave Airlie blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); 4122f453ba04SDave Airlie if (!blob) 412310e8cb7eSDaniel Stone return ERR_PTR(-ENOMEM); 4124f453ba04SDave Airlie 4125e2f5d2eaSDaniel Stone /* This must be explicitly initialised, so we can safely call list_del 4126e2f5d2eaSDaniel Stone * on it in the removal handler, even if it isn't in a file list. */ 4127e2f5d2eaSDaniel Stone INIT_LIST_HEAD(&blob->head_file); 4128f453ba04SDave Airlie blob->length = length; 41296bcacf51SDaniel Stone blob->dev = dev; 4130f453ba04SDave Airlie 413199531d9bSDaniel Stone if (data) 4132f453ba04SDave Airlie memcpy(blob->data, data, length); 4133f453ba04SDave Airlie 41348fb6e7a5SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 41358fb6e7a5SDaniel Stone 41368fb6e7a5SDaniel Stone ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); 41378fb6e7a5SDaniel Stone if (ret) { 41388fb6e7a5SDaniel Stone kfree(blob); 41398fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 414010e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 41418fb6e7a5SDaniel Stone } 41428fb6e7a5SDaniel Stone 41436bcacf51SDaniel Stone kref_init(&blob->refcount); 41446bcacf51SDaniel Stone 4145e2f5d2eaSDaniel Stone list_add_tail(&blob->head_global, 4146e2f5d2eaSDaniel Stone &dev->mode_config.property_blob_list); 41478fb6e7a5SDaniel Stone 41488fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 41498fb6e7a5SDaniel Stone 4150f453ba04SDave Airlie return blob; 4151f453ba04SDave Airlie } 41526bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_create_blob); 4153f453ba04SDave Airlie 41546bcacf51SDaniel Stone /** 41556bcacf51SDaniel Stone * drm_property_free_blob - Blob property destructor 41566bcacf51SDaniel Stone * 41576bcacf51SDaniel Stone * Internal free function for blob properties; must not be used directly. 41586bcacf51SDaniel Stone * 4159f102c16eSDaniel Stone * @kref: Reference 41606bcacf51SDaniel Stone */ 41616bcacf51SDaniel Stone static void drm_property_free_blob(struct kref *kref) 4162f453ba04SDave Airlie { 41636bcacf51SDaniel Stone struct drm_property_blob *blob = 41646bcacf51SDaniel Stone container_of(kref, struct drm_property_blob, refcount); 41656bcacf51SDaniel Stone 41666bcacf51SDaniel Stone WARN_ON(!mutex_is_locked(&blob->dev->mode_config.blob_lock)); 41676bcacf51SDaniel Stone 4168e2f5d2eaSDaniel Stone list_del(&blob->head_global); 4169e2f5d2eaSDaniel Stone list_del(&blob->head_file); 41706bcacf51SDaniel Stone drm_mode_object_put(blob->dev, &blob->base); 41718fb6e7a5SDaniel Stone 4172f453ba04SDave Airlie kfree(blob); 4173f453ba04SDave Airlie } 4174f453ba04SDave Airlie 4175c8e32cc1SDaniel Vetter /** 41766bcacf51SDaniel Stone * drm_property_unreference_blob - Unreference a blob property 41776bcacf51SDaniel Stone * 41786bcacf51SDaniel Stone * Drop a reference on a blob property. May free the object. 41796bcacf51SDaniel Stone * 4180f102c16eSDaniel Stone * @blob: Pointer to blob property 41816bcacf51SDaniel Stone */ 41826bcacf51SDaniel Stone void drm_property_unreference_blob(struct drm_property_blob *blob) 41836bcacf51SDaniel Stone { 41846bcacf51SDaniel Stone struct drm_device *dev; 41856bcacf51SDaniel Stone 41866bcacf51SDaniel Stone if (!blob) 41876bcacf51SDaniel Stone return; 41886bcacf51SDaniel Stone 41896bcacf51SDaniel Stone dev = blob->dev; 41906bcacf51SDaniel Stone 41916bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 41926bcacf51SDaniel Stone 41936bcacf51SDaniel Stone if (kref_put_mutex(&blob->refcount, drm_property_free_blob, 41946bcacf51SDaniel Stone &dev->mode_config.blob_lock)) 41956bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 41966bcacf51SDaniel Stone else 41976bcacf51SDaniel Stone might_lock(&dev->mode_config.blob_lock); 41986bcacf51SDaniel Stone } 41996bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_unreference_blob); 42006bcacf51SDaniel Stone 42016bcacf51SDaniel Stone /** 42026bcacf51SDaniel Stone * drm_property_unreference_blob_locked - Unreference a blob property with blob_lock held 42036bcacf51SDaniel Stone * 42046bcacf51SDaniel Stone * Drop a reference on a blob property. May free the object. This must be 42056bcacf51SDaniel Stone * called with blob_lock held. 42066bcacf51SDaniel Stone * 4207f102c16eSDaniel Stone * @blob: Pointer to blob property 42086bcacf51SDaniel Stone */ 42096bcacf51SDaniel Stone static void drm_property_unreference_blob_locked(struct drm_property_blob *blob) 42106bcacf51SDaniel Stone { 42116bcacf51SDaniel Stone if (!blob) 42126bcacf51SDaniel Stone return; 42136bcacf51SDaniel Stone 42146bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 42156bcacf51SDaniel Stone 42166bcacf51SDaniel Stone kref_put(&blob->refcount, drm_property_free_blob); 42176bcacf51SDaniel Stone } 42186bcacf51SDaniel Stone 42196bcacf51SDaniel Stone /** 4220e2f5d2eaSDaniel Stone * drm_property_destroy_user_blobs - destroy all blobs created by this client 4221e2f5d2eaSDaniel Stone * @dev: DRM device 4222e2f5d2eaSDaniel Stone * @file_priv: destroy all blobs owned by this file handle 4223e2f5d2eaSDaniel Stone */ 4224e2f5d2eaSDaniel Stone void drm_property_destroy_user_blobs(struct drm_device *dev, 4225e2f5d2eaSDaniel Stone struct drm_file *file_priv) 4226e2f5d2eaSDaniel Stone { 4227e2f5d2eaSDaniel Stone struct drm_property_blob *blob, *bt; 4228e2f5d2eaSDaniel Stone 4229e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4230e2f5d2eaSDaniel Stone 4231e2f5d2eaSDaniel Stone list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { 4232e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4233e2f5d2eaSDaniel Stone drm_property_unreference_blob_locked(blob); 4234e2f5d2eaSDaniel Stone } 4235e2f5d2eaSDaniel Stone 4236e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4237e2f5d2eaSDaniel Stone } 4238e2f5d2eaSDaniel Stone 4239e2f5d2eaSDaniel Stone /** 42406bcacf51SDaniel Stone * drm_property_reference_blob - Take a reference on an existing property 42416bcacf51SDaniel Stone * 42426bcacf51SDaniel Stone * Take a new reference on an existing blob property. 42436bcacf51SDaniel Stone * 4244f102c16eSDaniel Stone * @blob: Pointer to blob property 42456bcacf51SDaniel Stone */ 42466bcacf51SDaniel Stone struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) 42476bcacf51SDaniel Stone { 42486bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 42496bcacf51SDaniel Stone kref_get(&blob->refcount); 42506bcacf51SDaniel Stone return blob; 42516bcacf51SDaniel Stone } 42526bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_reference_blob); 42536bcacf51SDaniel Stone 42546bcacf51SDaniel Stone /* 42556bcacf51SDaniel Stone * Like drm_property_lookup_blob, but does not return an additional reference. 42566bcacf51SDaniel Stone * Must be called with blob_lock held. 42576bcacf51SDaniel Stone */ 42586bcacf51SDaniel Stone static struct drm_property_blob *__drm_property_lookup_blob(struct drm_device *dev, 42596bcacf51SDaniel Stone uint32_t id) 42606bcacf51SDaniel Stone { 42616bcacf51SDaniel Stone struct drm_mode_object *obj = NULL; 42626bcacf51SDaniel Stone struct drm_property_blob *blob; 42636bcacf51SDaniel Stone 42646bcacf51SDaniel Stone WARN_ON(!mutex_is_locked(&dev->mode_config.blob_lock)); 42656bcacf51SDaniel Stone 42666bcacf51SDaniel Stone mutex_lock(&dev->mode_config.idr_mutex); 42676bcacf51SDaniel Stone obj = idr_find(&dev->mode_config.crtc_idr, id); 42686bcacf51SDaniel Stone if (!obj || (obj->type != DRM_MODE_OBJECT_BLOB) || (obj->id != id)) 42696bcacf51SDaniel Stone blob = NULL; 42706bcacf51SDaniel Stone else 42716bcacf51SDaniel Stone blob = obj_to_blob(obj); 42726bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.idr_mutex); 42736bcacf51SDaniel Stone 4274f453ba04SDave Airlie return blob; 4275f453ba04SDave Airlie } 4276f453ba04SDave Airlie 42776bcacf51SDaniel Stone /** 42786bcacf51SDaniel Stone * drm_property_lookup_blob - look up a blob property and take a reference 42796bcacf51SDaniel Stone * @dev: drm device 42806bcacf51SDaniel Stone * @id: id of the blob property 42816bcacf51SDaniel Stone * 42826bcacf51SDaniel Stone * If successful, this takes an additional reference to the blob property. 42836bcacf51SDaniel Stone * callers need to make sure to eventually unreference the returned property 42846bcacf51SDaniel Stone * again, using @drm_property_unreference_blob. 42856bcacf51SDaniel Stone */ 42866bcacf51SDaniel Stone struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, 42876bcacf51SDaniel Stone uint32_t id) 4288f453ba04SDave Airlie { 42896bcacf51SDaniel Stone struct drm_property_blob *blob; 42906bcacf51SDaniel Stone 42916bcacf51SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 42926bcacf51SDaniel Stone blob = __drm_property_lookup_blob(dev, id); 42936bcacf51SDaniel Stone if (blob) { 42946bcacf51SDaniel Stone if (!kref_get_unless_zero(&blob->refcount)) 42956bcacf51SDaniel Stone blob = NULL; 42966bcacf51SDaniel Stone } 42976bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 42986bcacf51SDaniel Stone 42996bcacf51SDaniel Stone return blob; 43006bcacf51SDaniel Stone } 43016bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_lookup_blob); 43026bcacf51SDaniel Stone 43036bcacf51SDaniel Stone /** 4304d2ed3436SDaniel Stone * drm_property_replace_global_blob - atomically replace existing blob property 4305d2ed3436SDaniel Stone * @dev: drm device 4306d2ed3436SDaniel Stone * @replace: location of blob property pointer to be replaced 4307d2ed3436SDaniel Stone * @length: length of data for new blob, or 0 for no data 4308d2ed3436SDaniel Stone * @data: content for new blob, or NULL for no data 4309d2ed3436SDaniel Stone * @obj_holds_id: optional object for property holding blob ID 4310d2ed3436SDaniel Stone * @prop_holds_id: optional property holding blob ID 4311d2ed3436SDaniel Stone * @return 0 on success or error on failure 4312d2ed3436SDaniel Stone * 4313d2ed3436SDaniel Stone * This function will atomically replace a global property in the blob list, 4314d2ed3436SDaniel Stone * optionally updating a property which holds the ID of that property. It is 4315d2ed3436SDaniel Stone * guaranteed to be atomic: no caller will be allowed to see intermediate 4316d2ed3436SDaniel Stone * results, and either the entire operation will succeed and clean up the 4317d2ed3436SDaniel Stone * previous property, or it will fail and the state will be unchanged. 4318d2ed3436SDaniel Stone * 4319d2ed3436SDaniel Stone * If length is 0 or data is NULL, no new blob will be created, and the holding 4320d2ed3436SDaniel Stone * property, if specified, will be set to 0. 4321d2ed3436SDaniel Stone * 4322d2ed3436SDaniel Stone * Access to the replace pointer is assumed to be protected by the caller, e.g. 4323d2ed3436SDaniel Stone * by holding the relevant modesetting object lock for its parent. 4324d2ed3436SDaniel Stone * 4325d2ed3436SDaniel Stone * For example, a drm_connector has a 'PATH' property, which contains the ID 4326d2ed3436SDaniel Stone * of a blob property with the value of the MST path information. Calling this 4327d2ed3436SDaniel Stone * function with replace pointing to the connector's path_blob_ptr, length and 4328d2ed3436SDaniel Stone * data set for the new path information, obj_holds_id set to the connector's 4329d2ed3436SDaniel Stone * base object, and prop_holds_id set to the path property name, will perform 4330d2ed3436SDaniel Stone * a completely atomic update. The access to path_blob_ptr is protected by the 4331d2ed3436SDaniel Stone * caller holding a lock on the connector. 4332d2ed3436SDaniel Stone */ 4333d2ed3436SDaniel Stone static int drm_property_replace_global_blob(struct drm_device *dev, 4334d2ed3436SDaniel Stone struct drm_property_blob **replace, 4335d2ed3436SDaniel Stone size_t length, 4336d2ed3436SDaniel Stone const void *data, 4337d2ed3436SDaniel Stone struct drm_mode_object *obj_holds_id, 4338d2ed3436SDaniel Stone struct drm_property *prop_holds_id) 4339d2ed3436SDaniel Stone { 4340d2ed3436SDaniel Stone struct drm_property_blob *new_blob = NULL; 4341d2ed3436SDaniel Stone struct drm_property_blob *old_blob = NULL; 4342d2ed3436SDaniel Stone int ret; 4343d2ed3436SDaniel Stone 4344d2ed3436SDaniel Stone WARN_ON(replace == NULL); 4345d2ed3436SDaniel Stone 4346d2ed3436SDaniel Stone old_blob = *replace; 4347d2ed3436SDaniel Stone 4348d2ed3436SDaniel Stone if (length && data) { 4349d2ed3436SDaniel Stone new_blob = drm_property_create_blob(dev, length, data); 435010e8cb7eSDaniel Stone if (IS_ERR(new_blob)) 435110e8cb7eSDaniel Stone return PTR_ERR(new_blob); 4352d2ed3436SDaniel Stone } 4353d2ed3436SDaniel Stone 4354d2ed3436SDaniel Stone /* This does not need to be synchronised with blob_lock, as the 4355d2ed3436SDaniel Stone * get_properties ioctl locks all modesetting objects, and 4356d2ed3436SDaniel Stone * obj_holds_id must be locked before calling here, so we cannot 4357d2ed3436SDaniel Stone * have its value out of sync with the list membership modified 4358d2ed3436SDaniel Stone * below under blob_lock. */ 4359d2ed3436SDaniel Stone if (obj_holds_id) { 4360d2ed3436SDaniel Stone ret = drm_object_property_set_value(obj_holds_id, 4361d2ed3436SDaniel Stone prop_holds_id, 4362d2ed3436SDaniel Stone new_blob ? 4363d2ed3436SDaniel Stone new_blob->base.id : 0); 4364d2ed3436SDaniel Stone if (ret != 0) 4365d2ed3436SDaniel Stone goto err_created; 4366d2ed3436SDaniel Stone } 4367d2ed3436SDaniel Stone 43686bcacf51SDaniel Stone drm_property_unreference_blob(old_blob); 4369d2ed3436SDaniel Stone *replace = new_blob; 4370d2ed3436SDaniel Stone 4371d2ed3436SDaniel Stone return 0; 4372d2ed3436SDaniel Stone 4373d2ed3436SDaniel Stone err_created: 43746bcacf51SDaniel Stone drm_property_unreference_blob(new_blob); 4375d2ed3436SDaniel Stone return ret; 4376f453ba04SDave Airlie } 4377f453ba04SDave Airlie 4378c8e32cc1SDaniel Vetter /** 4379c8e32cc1SDaniel Vetter * drm_mode_getblob_ioctl - get the contents of a blob property value 4380c8e32cc1SDaniel Vetter * @dev: DRM device 4381c8e32cc1SDaniel Vetter * @data: ioctl data 4382c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4383c8e32cc1SDaniel Vetter * 4384c8e32cc1SDaniel Vetter * This function retrieves the contents of a blob property. The value stored in 4385c8e32cc1SDaniel Vetter * an object's blob property is just a normal modeset object id. 4386c8e32cc1SDaniel Vetter * 4387c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4388c8e32cc1SDaniel Vetter * 4389c8e32cc1SDaniel Vetter * Returns: 43901a498633SDaniel Vetter * Zero on success, negative errno on failure. 4391c8e32cc1SDaniel Vetter */ 4392f453ba04SDave Airlie int drm_mode_getblob_ioctl(struct drm_device *dev, 4393f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4394f453ba04SDave Airlie { 4395f453ba04SDave Airlie struct drm_mode_get_blob *out_resp = data; 4396f453ba04SDave Airlie struct drm_property_blob *blob; 4397f453ba04SDave Airlie int ret = 0; 439881f6c7f8SVille Syrjälä void __user *blob_ptr; 4399f453ba04SDave Airlie 4400fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4401fb3b06c8SDave Airlie return -EINVAL; 4402fb3b06c8SDave Airlie 440384849903SDaniel Vetter drm_modeset_lock_all(dev); 44048fb6e7a5SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 44056bcacf51SDaniel Stone blob = __drm_property_lookup_blob(dev, out_resp->blob_id); 4406a2b34e22SRob Clark if (!blob) { 4407f27657f2SVille Syrjälä ret = -ENOENT; 4408f453ba04SDave Airlie goto done; 4409f453ba04SDave Airlie } 4410f453ba04SDave Airlie 4411f453ba04SDave Airlie if (out_resp->length == blob->length) { 441281f6c7f8SVille Syrjälä blob_ptr = (void __user *)(unsigned long)out_resp->data; 4413f453ba04SDave Airlie if (copy_to_user(blob_ptr, blob->data, blob->length)) { 4414f453ba04SDave Airlie ret = -EFAULT; 4415f453ba04SDave Airlie goto done; 4416f453ba04SDave Airlie } 4417f453ba04SDave Airlie } 4418f453ba04SDave Airlie out_resp->length = blob->length; 4419f453ba04SDave Airlie 4420f453ba04SDave Airlie done: 44218fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 442284849903SDaniel Vetter drm_modeset_unlock_all(dev); 4423f453ba04SDave Airlie return ret; 4424f453ba04SDave Airlie } 4425f453ba04SDave Airlie 4426cc7096fbSDave Airlie /** 4427e2f5d2eaSDaniel Stone * drm_mode_createblob_ioctl - create a new blob property 4428e2f5d2eaSDaniel Stone * @dev: DRM device 4429e2f5d2eaSDaniel Stone * @data: ioctl data 4430e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4431e2f5d2eaSDaniel Stone * 4432e2f5d2eaSDaniel Stone * This function creates a new blob property with user-defined values. In order 4433e2f5d2eaSDaniel Stone * to give us sensible validation and checking when creating, rather than at 4434e2f5d2eaSDaniel Stone * every potential use, we also require a type to be provided upfront. 4435e2f5d2eaSDaniel Stone * 4436e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4437e2f5d2eaSDaniel Stone * 4438e2f5d2eaSDaniel Stone * Returns: 4439e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4440e2f5d2eaSDaniel Stone */ 4441e2f5d2eaSDaniel Stone int drm_mode_createblob_ioctl(struct drm_device *dev, 4442e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4443e2f5d2eaSDaniel Stone { 4444e2f5d2eaSDaniel Stone struct drm_mode_create_blob *out_resp = data; 4445e2f5d2eaSDaniel Stone struct drm_property_blob *blob; 4446e2f5d2eaSDaniel Stone void __user *blob_ptr; 4447e2f5d2eaSDaniel Stone int ret = 0; 4448e2f5d2eaSDaniel Stone 4449e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4450e2f5d2eaSDaniel Stone return -EINVAL; 4451e2f5d2eaSDaniel Stone 4452e2f5d2eaSDaniel Stone blob = drm_property_create_blob(dev, out_resp->length, NULL); 4453e2f5d2eaSDaniel Stone if (IS_ERR(blob)) 4454e2f5d2eaSDaniel Stone return PTR_ERR(blob); 4455e2f5d2eaSDaniel Stone 4456e2f5d2eaSDaniel Stone blob_ptr = (void __user *)(unsigned long)out_resp->data; 4457e2f5d2eaSDaniel Stone if (copy_from_user(blob->data, blob_ptr, out_resp->length)) { 4458e2f5d2eaSDaniel Stone ret = -EFAULT; 4459e2f5d2eaSDaniel Stone goto out_blob; 4460e2f5d2eaSDaniel Stone } 4461e2f5d2eaSDaniel Stone 4462e2f5d2eaSDaniel Stone /* Dropping the lock between create_blob and our access here is safe 4463e2f5d2eaSDaniel Stone * as only the same file_priv can remove the blob; at this point, it is 4464e2f5d2eaSDaniel Stone * not associated with any file_priv. */ 4465e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4466e2f5d2eaSDaniel Stone out_resp->blob_id = blob->base.id; 4467e2f5d2eaSDaniel Stone list_add_tail(&file_priv->blobs, &blob->head_file); 4468e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4469e2f5d2eaSDaniel Stone 4470e2f5d2eaSDaniel Stone return 0; 4471e2f5d2eaSDaniel Stone 4472e2f5d2eaSDaniel Stone out_blob: 4473e2f5d2eaSDaniel Stone drm_property_unreference_blob(blob); 4474e2f5d2eaSDaniel Stone return ret; 4475e2f5d2eaSDaniel Stone } 4476e2f5d2eaSDaniel Stone 4477e2f5d2eaSDaniel Stone /** 4478e2f5d2eaSDaniel Stone * drm_mode_destroyblob_ioctl - destroy a user blob property 4479e2f5d2eaSDaniel Stone * @dev: DRM device 4480e2f5d2eaSDaniel Stone * @data: ioctl data 4481e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4482e2f5d2eaSDaniel Stone * 4483e2f5d2eaSDaniel Stone * Destroy an existing user-defined blob property. 4484e2f5d2eaSDaniel Stone * 4485e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4486e2f5d2eaSDaniel Stone * 4487e2f5d2eaSDaniel Stone * Returns: 4488e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4489e2f5d2eaSDaniel Stone */ 4490e2f5d2eaSDaniel Stone int drm_mode_destroyblob_ioctl(struct drm_device *dev, 4491e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4492e2f5d2eaSDaniel Stone { 4493e2f5d2eaSDaniel Stone struct drm_mode_destroy_blob *out_resp = data; 4494e2f5d2eaSDaniel Stone struct drm_property_blob *blob = NULL, *bt; 4495e2f5d2eaSDaniel Stone bool found = false; 4496e2f5d2eaSDaniel Stone int ret = 0; 4497e2f5d2eaSDaniel Stone 4498e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4499e2f5d2eaSDaniel Stone return -EINVAL; 4500e2f5d2eaSDaniel Stone 4501e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4502e2f5d2eaSDaniel Stone blob = __drm_property_lookup_blob(dev, out_resp->blob_id); 4503e2f5d2eaSDaniel Stone if (!blob) { 4504e2f5d2eaSDaniel Stone ret = -ENOENT; 4505e2f5d2eaSDaniel Stone goto err; 4506e2f5d2eaSDaniel Stone } 4507e2f5d2eaSDaniel Stone 4508e2f5d2eaSDaniel Stone /* Ensure the property was actually created by this user. */ 4509e2f5d2eaSDaniel Stone list_for_each_entry(bt, &file_priv->blobs, head_file) { 4510e2f5d2eaSDaniel Stone if (bt == blob) { 4511e2f5d2eaSDaniel Stone found = true; 4512e2f5d2eaSDaniel Stone break; 4513e2f5d2eaSDaniel Stone } 4514e2f5d2eaSDaniel Stone } 4515e2f5d2eaSDaniel Stone 4516e2f5d2eaSDaniel Stone if (!found) { 4517e2f5d2eaSDaniel Stone ret = -EPERM; 4518e2f5d2eaSDaniel Stone goto err; 4519e2f5d2eaSDaniel Stone } 4520e2f5d2eaSDaniel Stone 4521e2f5d2eaSDaniel Stone /* We must drop head_file here, because we may not be the last 4522e2f5d2eaSDaniel Stone * reference on the blob. */ 4523e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4524e2f5d2eaSDaniel Stone drm_property_unreference_blob_locked(blob); 4525e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4526e2f5d2eaSDaniel Stone 4527e2f5d2eaSDaniel Stone return 0; 4528e2f5d2eaSDaniel Stone 4529e2f5d2eaSDaniel Stone err: 4530e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4531e2f5d2eaSDaniel Stone return ret; 4532e2f5d2eaSDaniel Stone } 4533e2f5d2eaSDaniel Stone 4534e2f5d2eaSDaniel Stone /** 4535cc7096fbSDave Airlie * drm_mode_connector_set_path_property - set tile property on connector 4536cc7096fbSDave Airlie * @connector: connector to set property on. 4537d2ed3436SDaniel Stone * @path: path to use for property; must not be NULL. 4538cc7096fbSDave Airlie * 4539cc7096fbSDave Airlie * This creates a property to expose to userspace to specify a 4540cc7096fbSDave Airlie * connector path. This is mainly used for DisplayPort MST where 4541cc7096fbSDave Airlie * connectors have a topology and we want to allow userspace to give 4542cc7096fbSDave Airlie * them more meaningful names. 4543cc7096fbSDave Airlie * 4544cc7096fbSDave Airlie * Returns: 45451a498633SDaniel Vetter * Zero on success, negative errno on failure. 4546cc7096fbSDave Airlie */ 454743aba7ebSDave Airlie int drm_mode_connector_set_path_property(struct drm_connector *connector, 454812e6cecdSThierry Reding const char *path) 454943aba7ebSDave Airlie { 455043aba7ebSDave Airlie struct drm_device *dev = connector->dev; 4551ecbbe59bSThierry Reding int ret; 455243aba7ebSDave Airlie 4553d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4554d2ed3436SDaniel Stone &connector->path_blob_ptr, 4555d2ed3436SDaniel Stone strlen(path) + 1, 4556d2ed3436SDaniel Stone path, 4557d2ed3436SDaniel Stone &connector->base, 4558d2ed3436SDaniel Stone dev->mode_config.path_property); 455943aba7ebSDave Airlie return ret; 456043aba7ebSDave Airlie } 456143aba7ebSDave Airlie EXPORT_SYMBOL(drm_mode_connector_set_path_property); 456243aba7ebSDave Airlie 4563c8e32cc1SDaniel Vetter /** 45646f134d7bSDave Airlie * drm_mode_connector_set_tile_property - set tile property on connector 45656f134d7bSDave Airlie * @connector: connector to set property on. 45666f134d7bSDave Airlie * 45676f134d7bSDave Airlie * This looks up the tile information for a connector, and creates a 45686f134d7bSDave Airlie * property for userspace to parse if it exists. The property is of 45696f134d7bSDave Airlie * the form of 8 integers using ':' as a separator. 45706f134d7bSDave Airlie * 45716f134d7bSDave Airlie * Returns: 45726f134d7bSDave Airlie * Zero on success, errno on failure. 45736f134d7bSDave Airlie */ 45746f134d7bSDave Airlie int drm_mode_connector_set_tile_property(struct drm_connector *connector) 45756f134d7bSDave Airlie { 45766f134d7bSDave Airlie struct drm_device *dev = connector->dev; 45776f134d7bSDave Airlie char tile[256]; 4578d2ed3436SDaniel Stone int ret; 45796f134d7bSDave Airlie 45806f134d7bSDave Airlie if (!connector->has_tile) { 4581d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4582d2ed3436SDaniel Stone &connector->tile_blob_ptr, 4583d2ed3436SDaniel Stone 0, 4584d2ed3436SDaniel Stone NULL, 4585d2ed3436SDaniel Stone &connector->base, 4586d2ed3436SDaniel Stone dev->mode_config.tile_property); 45876f134d7bSDave Airlie return ret; 45886f134d7bSDave Airlie } 45896f134d7bSDave Airlie 45906f134d7bSDave Airlie snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", 45916f134d7bSDave Airlie connector->tile_group->id, connector->tile_is_single_monitor, 45926f134d7bSDave Airlie connector->num_h_tile, connector->num_v_tile, 45936f134d7bSDave Airlie connector->tile_h_loc, connector->tile_v_loc, 45946f134d7bSDave Airlie connector->tile_h_size, connector->tile_v_size); 45956f134d7bSDave Airlie 4596d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4597d2ed3436SDaniel Stone &connector->tile_blob_ptr, 4598d2ed3436SDaniel Stone strlen(tile) + 1, 4599d2ed3436SDaniel Stone tile, 4600d2ed3436SDaniel Stone &connector->base, 4601d2ed3436SDaniel Stone dev->mode_config.tile_property); 46026f134d7bSDave Airlie return ret; 46036f134d7bSDave Airlie } 46046f134d7bSDave Airlie EXPORT_SYMBOL(drm_mode_connector_set_tile_property); 46056f134d7bSDave Airlie 46066f134d7bSDave Airlie /** 4607c8e32cc1SDaniel Vetter * drm_mode_connector_update_edid_property - update the edid property of a connector 4608c8e32cc1SDaniel Vetter * @connector: drm connector 4609c8e32cc1SDaniel Vetter * @edid: new value of the edid property 4610c8e32cc1SDaniel Vetter * 4611c8e32cc1SDaniel Vetter * This function creates a new blob modeset object and assigns its id to the 4612c8e32cc1SDaniel Vetter * connector's edid property. 4613c8e32cc1SDaniel Vetter * 4614c8e32cc1SDaniel Vetter * Returns: 46151a498633SDaniel Vetter * Zero on success, negative errno on failure. 4616c8e32cc1SDaniel Vetter */ 4617f453ba04SDave Airlie int drm_mode_connector_update_edid_property(struct drm_connector *connector, 461812e6cecdSThierry Reding const struct edid *edid) 4619f453ba04SDave Airlie { 4620f453ba04SDave Airlie struct drm_device *dev = connector->dev; 4621d2ed3436SDaniel Stone size_t size = 0; 4622ecbbe59bSThierry Reding int ret; 4623f453ba04SDave Airlie 46244cf2b281SThomas Wood /* ignore requests to set edid when overridden */ 46254cf2b281SThomas Wood if (connector->override_edid) 46264cf2b281SThomas Wood return 0; 46274cf2b281SThomas Wood 4628d2ed3436SDaniel Stone if (edid) 4629e24ff467SShixin Zeng size = EDID_LENGTH * (1 + edid->extensions); 4630f453ba04SDave Airlie 4631d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4632d2ed3436SDaniel Stone &connector->edid_blob_ptr, 4633d2ed3436SDaniel Stone size, 4634d2ed3436SDaniel Stone edid, 4635d2ed3436SDaniel Stone &connector->base, 4636d2ed3436SDaniel Stone dev->mode_config.edid_property); 4637f453ba04SDave Airlie return ret; 4638f453ba04SDave Airlie } 4639f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_connector_update_edid_property); 4640f453ba04SDave Airlie 46413843e71fSRob Clark /* Some properties could refer to dynamic refcnt'd objects, or things that 46423843e71fSRob Clark * need special locking to handle lifetime issues (ie. to ensure the prop 46433843e71fSRob Clark * value doesn't become invalid part way through the property update due to 46443843e71fSRob Clark * race). The value returned by reference via 'obj' should be passed back 46453843e71fSRob Clark * to drm_property_change_valid_put() after the property is set (and the 46463843e71fSRob Clark * object to which the property is attached has a chance to take it's own 46473843e71fSRob Clark * reference). 46483843e71fSRob Clark */ 4649d34f20d6SRob Clark bool drm_property_change_valid_get(struct drm_property *property, 46503843e71fSRob Clark uint64_t value, struct drm_mode_object **ref) 465126a34815SPaulo Zanoni { 46522ca651d1SThierry Reding int i; 46532ca651d1SThierry Reding 465426a34815SPaulo Zanoni if (property->flags & DRM_MODE_PROP_IMMUTABLE) 465526a34815SPaulo Zanoni return false; 46565ea22f24SRob Clark 46573843e71fSRob Clark *ref = NULL; 46583843e71fSRob Clark 46595ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { 466026a34815SPaulo Zanoni if (value < property->values[0] || value > property->values[1]) 466126a34815SPaulo Zanoni return false; 466226a34815SPaulo Zanoni return true; 4663ebc44cf3SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { 4664ebc44cf3SRob Clark int64_t svalue = U642I64(value); 46654dfd909fSThierry Reding 4666ebc44cf3SRob Clark if (svalue < U642I64(property->values[0]) || 4667ebc44cf3SRob Clark svalue > U642I64(property->values[1])) 4668ebc44cf3SRob Clark return false; 4669ebc44cf3SRob Clark return true; 46705ea22f24SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 4671592c20eeSVille Syrjälä uint64_t valid_mask = 0; 46724dfd909fSThierry Reding 467349e27545SRob Clark for (i = 0; i < property->num_values; i++) 467449e27545SRob Clark valid_mask |= (1ULL << property->values[i]); 467549e27545SRob Clark return !(value & ~valid_mask); 46765ea22f24SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { 46776bcacf51SDaniel Stone struct drm_property_blob *blob; 46786bcacf51SDaniel Stone 46796bcacf51SDaniel Stone if (value == 0) 4680c4a56750SVille Syrjälä return true; 46816bcacf51SDaniel Stone 46826bcacf51SDaniel Stone blob = drm_property_lookup_blob(property->dev, value); 46836bcacf51SDaniel Stone if (blob) { 46846bcacf51SDaniel Stone *ref = &blob->base; 46856bcacf51SDaniel Stone return true; 46866bcacf51SDaniel Stone } else { 46876bcacf51SDaniel Stone return false; 46886bcacf51SDaniel Stone } 468998f75de4SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { 469098f75de4SRob Clark /* a zero value for an object property translates to null: */ 469198f75de4SRob Clark if (value == 0) 469298f75de4SRob Clark return true; 46933843e71fSRob Clark 46943843e71fSRob Clark /* handle refcnt'd objects specially: */ 46953843e71fSRob Clark if (property->values[0] == DRM_MODE_OBJECT_FB) { 46963843e71fSRob Clark struct drm_framebuffer *fb; 46973843e71fSRob Clark fb = drm_framebuffer_lookup(property->dev, value); 46983843e71fSRob Clark if (fb) { 46993843e71fSRob Clark *ref = &fb->base; 47003843e71fSRob Clark return true; 47013843e71fSRob Clark } else { 47023843e71fSRob Clark return false; 47033843e71fSRob Clark } 47043843e71fSRob Clark } else { 47053843e71fSRob Clark return _object_find(property->dev, value, property->values[0]) != NULL; 47063843e71fSRob Clark } 47072ca651d1SThierry Reding } 47082ca651d1SThierry Reding 470926a34815SPaulo Zanoni for (i = 0; i < property->num_values; i++) 471026a34815SPaulo Zanoni if (property->values[i] == value) 471126a34815SPaulo Zanoni return true; 471226a34815SPaulo Zanoni return false; 471326a34815SPaulo Zanoni } 471426a34815SPaulo Zanoni 4715d34f20d6SRob Clark void drm_property_change_valid_put(struct drm_property *property, 47163843e71fSRob Clark struct drm_mode_object *ref) 47173843e71fSRob Clark { 47183843e71fSRob Clark if (!ref) 47193843e71fSRob Clark return; 47203843e71fSRob Clark 47213843e71fSRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { 47223843e71fSRob Clark if (property->values[0] == DRM_MODE_OBJECT_FB) 47233843e71fSRob Clark drm_framebuffer_unreference(obj_to_fb(ref)); 4724da9b2a38SDaniel Stone } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 4725da9b2a38SDaniel Stone drm_property_unreference_blob(obj_to_blob(ref)); 47263843e71fSRob Clark } 47273843e71fSRob Clark 4728c8e32cc1SDaniel Vetter /** 4729c8e32cc1SDaniel Vetter * drm_mode_connector_property_set_ioctl - set the current value of a connector property 4730c8e32cc1SDaniel Vetter * @dev: DRM device 4731c8e32cc1SDaniel Vetter * @data: ioctl data 4732c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4733c8e32cc1SDaniel Vetter * 4734c8e32cc1SDaniel Vetter * This function sets the current value for a connectors's property. It also 4735c8e32cc1SDaniel Vetter * calls into a driver's ->set_property callback to update the hardware state 4736c8e32cc1SDaniel Vetter * 4737c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4738c8e32cc1SDaniel Vetter * 4739c8e32cc1SDaniel Vetter * Returns: 47401a498633SDaniel Vetter * Zero on success, negative errno on failure. 4741c8e32cc1SDaniel Vetter */ 4742f453ba04SDave Airlie int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 4743f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4744f453ba04SDave Airlie { 47450057d8ddSPaulo Zanoni struct drm_mode_connector_set_property *conn_set_prop = data; 47460057d8ddSPaulo Zanoni struct drm_mode_obj_set_property obj_set_prop = { 47470057d8ddSPaulo Zanoni .value = conn_set_prop->value, 47480057d8ddSPaulo Zanoni .prop_id = conn_set_prop->prop_id, 47490057d8ddSPaulo Zanoni .obj_id = conn_set_prop->connector_id, 47500057d8ddSPaulo Zanoni .obj_type = DRM_MODE_OBJECT_CONNECTOR 47510057d8ddSPaulo Zanoni }; 4752f453ba04SDave Airlie 47530057d8ddSPaulo Zanoni /* It does all the locking and checking we need */ 47540057d8ddSPaulo Zanoni return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); 4755f453ba04SDave Airlie } 4756f453ba04SDave Airlie 4757c543188aSPaulo Zanoni static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, 4758c543188aSPaulo Zanoni struct drm_property *property, 4759c543188aSPaulo Zanoni uint64_t value) 4760c543188aSPaulo Zanoni { 4761c543188aSPaulo Zanoni int ret = -EINVAL; 4762c543188aSPaulo Zanoni struct drm_connector *connector = obj_to_connector(obj); 4763c543188aSPaulo Zanoni 4764c543188aSPaulo Zanoni /* Do DPMS ourselves */ 4765c543188aSPaulo Zanoni if (property == connector->dev->mode_config.dpms_property) { 4766c543188aSPaulo Zanoni ret = 0; 47679a69a9acSMaarten Lankhorst if (connector->funcs->dpms) 47689a69a9acSMaarten Lankhorst ret = (*connector->funcs->dpms)(connector, (int)value); 4769c543188aSPaulo Zanoni } else if (connector->funcs->set_property) 4770c543188aSPaulo Zanoni ret = connector->funcs->set_property(connector, property, value); 4771c543188aSPaulo Zanoni 4772c543188aSPaulo Zanoni /* store the property value if successful */ 4773c543188aSPaulo Zanoni if (!ret) 477458495563SRob Clark drm_object_property_set_value(&connector->base, property, value); 4775c543188aSPaulo Zanoni return ret; 4776c543188aSPaulo Zanoni } 4777c543188aSPaulo Zanoni 4778bffd9de0SPaulo Zanoni static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, 4779bffd9de0SPaulo Zanoni struct drm_property *property, 4780bffd9de0SPaulo Zanoni uint64_t value) 4781bffd9de0SPaulo Zanoni { 4782bffd9de0SPaulo Zanoni int ret = -EINVAL; 4783bffd9de0SPaulo Zanoni struct drm_crtc *crtc = obj_to_crtc(obj); 4784bffd9de0SPaulo Zanoni 4785bffd9de0SPaulo Zanoni if (crtc->funcs->set_property) 4786bffd9de0SPaulo Zanoni ret = crtc->funcs->set_property(crtc, property, value); 4787bffd9de0SPaulo Zanoni if (!ret) 4788bffd9de0SPaulo Zanoni drm_object_property_set_value(obj, property, value); 4789bffd9de0SPaulo Zanoni 4790bffd9de0SPaulo Zanoni return ret; 4791bffd9de0SPaulo Zanoni } 4792bffd9de0SPaulo Zanoni 47933a5f87c2SThomas Wood /** 47943a5f87c2SThomas Wood * drm_mode_plane_set_obj_prop - set the value of a property 47953a5f87c2SThomas Wood * @plane: drm plane object to set property value for 47963a5f87c2SThomas Wood * @property: property to set 47973a5f87c2SThomas Wood * @value: value the property should be set to 47983a5f87c2SThomas Wood * 47993a5f87c2SThomas Wood * This functions sets a given property on a given plane object. This function 48003a5f87c2SThomas Wood * calls the driver's ->set_property callback and changes the software state of 48013a5f87c2SThomas Wood * the property if the callback succeeds. 48023a5f87c2SThomas Wood * 48033a5f87c2SThomas Wood * Returns: 48043a5f87c2SThomas Wood * Zero on success, error code on failure. 48053a5f87c2SThomas Wood */ 48063a5f87c2SThomas Wood int drm_mode_plane_set_obj_prop(struct drm_plane *plane, 48074d93914aSRob Clark struct drm_property *property, 48084d93914aSRob Clark uint64_t value) 48094d93914aSRob Clark { 48104d93914aSRob Clark int ret = -EINVAL; 48113a5f87c2SThomas Wood struct drm_mode_object *obj = &plane->base; 48124d93914aSRob Clark 48134d93914aSRob Clark if (plane->funcs->set_property) 48144d93914aSRob Clark ret = plane->funcs->set_property(plane, property, value); 48154d93914aSRob Clark if (!ret) 48164d93914aSRob Clark drm_object_property_set_value(obj, property, value); 48174d93914aSRob Clark 48184d93914aSRob Clark return ret; 48194d93914aSRob Clark } 48203a5f87c2SThomas Wood EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); 48214d93914aSRob Clark 4822c8e32cc1SDaniel Vetter /** 48231a498633SDaniel Vetter * drm_mode_obj_get_properties_ioctl - get the current value of a object's property 4824c8e32cc1SDaniel Vetter * @dev: DRM device 4825c8e32cc1SDaniel Vetter * @data: ioctl data 4826c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4827c8e32cc1SDaniel Vetter * 4828c8e32cc1SDaniel Vetter * This function retrieves the current value for an object's property. Compared 4829c8e32cc1SDaniel Vetter * to the connector specific ioctl this one is extended to also work on crtc and 4830c8e32cc1SDaniel Vetter * plane objects. 4831c8e32cc1SDaniel Vetter * 4832c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4833c8e32cc1SDaniel Vetter * 4834c8e32cc1SDaniel Vetter * Returns: 48351a498633SDaniel Vetter * Zero on success, negative errno on failure. 4836c8e32cc1SDaniel Vetter */ 4837c543188aSPaulo Zanoni int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 4838c543188aSPaulo Zanoni struct drm_file *file_priv) 4839c543188aSPaulo Zanoni { 4840c543188aSPaulo Zanoni struct drm_mode_obj_get_properties *arg = data; 4841c543188aSPaulo Zanoni struct drm_mode_object *obj; 4842c543188aSPaulo Zanoni int ret = 0; 4843c543188aSPaulo Zanoni 4844c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4845c543188aSPaulo Zanoni return -EINVAL; 4846c543188aSPaulo Zanoni 484784849903SDaniel Vetter drm_modeset_lock_all(dev); 4848c543188aSPaulo Zanoni 4849c543188aSPaulo Zanoni obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 4850c543188aSPaulo Zanoni if (!obj) { 4851f27657f2SVille Syrjälä ret = -ENOENT; 4852c543188aSPaulo Zanoni goto out; 4853c543188aSPaulo Zanoni } 4854c543188aSPaulo Zanoni if (!obj->properties) { 4855c543188aSPaulo Zanoni ret = -EINVAL; 4856c543188aSPaulo Zanoni goto out; 4857c543188aSPaulo Zanoni } 4858c543188aSPaulo Zanoni 485988a48e29SRob Clark ret = get_properties(obj, file_priv->atomic, 486095cbf110SRob Clark (uint32_t __user *)(unsigned long)(arg->props_ptr), 486195cbf110SRob Clark (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), 486295cbf110SRob Clark &arg->count_props); 4863c543188aSPaulo Zanoni 4864c543188aSPaulo Zanoni out: 486584849903SDaniel Vetter drm_modeset_unlock_all(dev); 4866c543188aSPaulo Zanoni return ret; 4867c543188aSPaulo Zanoni } 4868c543188aSPaulo Zanoni 4869c8e32cc1SDaniel Vetter /** 4870c8e32cc1SDaniel Vetter * drm_mode_obj_set_property_ioctl - set the current value of an object's property 4871c8e32cc1SDaniel Vetter * @dev: DRM device 4872c8e32cc1SDaniel Vetter * @data: ioctl data 4873c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4874c8e32cc1SDaniel Vetter * 4875c8e32cc1SDaniel Vetter * This function sets the current value for an object's property. It also calls 4876c8e32cc1SDaniel Vetter * into a driver's ->set_property callback to update the hardware state. 4877c8e32cc1SDaniel Vetter * Compared to the connector specific ioctl this one is extended to also work on 4878c8e32cc1SDaniel Vetter * crtc and plane objects. 4879c8e32cc1SDaniel Vetter * 4880c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4881c8e32cc1SDaniel Vetter * 4882c8e32cc1SDaniel Vetter * Returns: 48831a498633SDaniel Vetter * Zero on success, negative errno on failure. 4884c8e32cc1SDaniel Vetter */ 4885c543188aSPaulo Zanoni int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 4886c543188aSPaulo Zanoni struct drm_file *file_priv) 4887c543188aSPaulo Zanoni { 4888c543188aSPaulo Zanoni struct drm_mode_obj_set_property *arg = data; 4889c543188aSPaulo Zanoni struct drm_mode_object *arg_obj; 4890c543188aSPaulo Zanoni struct drm_mode_object *prop_obj; 4891c543188aSPaulo Zanoni struct drm_property *property; 48923843e71fSRob Clark int i, ret = -EINVAL; 48933843e71fSRob Clark struct drm_mode_object *ref; 4894c543188aSPaulo Zanoni 4895c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4896c543188aSPaulo Zanoni return -EINVAL; 4897c543188aSPaulo Zanoni 489884849903SDaniel Vetter drm_modeset_lock_all(dev); 4899c543188aSPaulo Zanoni 4900c543188aSPaulo Zanoni arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 4901f27657f2SVille Syrjälä if (!arg_obj) { 4902f27657f2SVille Syrjälä ret = -ENOENT; 4903c543188aSPaulo Zanoni goto out; 4904f27657f2SVille Syrjälä } 4905c543188aSPaulo Zanoni if (!arg_obj->properties) 4906c543188aSPaulo Zanoni goto out; 4907c543188aSPaulo Zanoni 49087f88a9beSPaulo Zanoni for (i = 0; i < arg_obj->properties->count; i++) 4909b17cd757SRob Clark if (arg_obj->properties->properties[i]->base.id == arg->prop_id) 4910c543188aSPaulo Zanoni break; 4911c543188aSPaulo Zanoni 49127f88a9beSPaulo Zanoni if (i == arg_obj->properties->count) 4913c543188aSPaulo Zanoni goto out; 4914c543188aSPaulo Zanoni 4915c543188aSPaulo Zanoni prop_obj = drm_mode_object_find(dev, arg->prop_id, 4916c543188aSPaulo Zanoni DRM_MODE_OBJECT_PROPERTY); 4917f27657f2SVille Syrjälä if (!prop_obj) { 4918f27657f2SVille Syrjälä ret = -ENOENT; 4919c543188aSPaulo Zanoni goto out; 4920f27657f2SVille Syrjälä } 4921c543188aSPaulo Zanoni property = obj_to_property(prop_obj); 4922c543188aSPaulo Zanoni 49233843e71fSRob Clark if (!drm_property_change_valid_get(property, arg->value, &ref)) 4924c543188aSPaulo Zanoni goto out; 4925c543188aSPaulo Zanoni 4926c543188aSPaulo Zanoni switch (arg_obj->type) { 4927c543188aSPaulo Zanoni case DRM_MODE_OBJECT_CONNECTOR: 4928c543188aSPaulo Zanoni ret = drm_mode_connector_set_obj_prop(arg_obj, property, 4929c543188aSPaulo Zanoni arg->value); 4930c543188aSPaulo Zanoni break; 4931bffd9de0SPaulo Zanoni case DRM_MODE_OBJECT_CRTC: 4932bffd9de0SPaulo Zanoni ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); 4933bffd9de0SPaulo Zanoni break; 49344d93914aSRob Clark case DRM_MODE_OBJECT_PLANE: 49353a5f87c2SThomas Wood ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), 49363a5f87c2SThomas Wood property, arg->value); 49374d93914aSRob Clark break; 4938c543188aSPaulo Zanoni } 4939c543188aSPaulo Zanoni 49403843e71fSRob Clark drm_property_change_valid_put(property, ref); 49413843e71fSRob Clark 4942c543188aSPaulo Zanoni out: 494384849903SDaniel Vetter drm_modeset_unlock_all(dev); 4944c543188aSPaulo Zanoni return ret; 4945c543188aSPaulo Zanoni } 4946c543188aSPaulo Zanoni 4947c8e32cc1SDaniel Vetter /** 4948c8e32cc1SDaniel Vetter * drm_mode_connector_attach_encoder - attach a connector to an encoder 4949c8e32cc1SDaniel Vetter * @connector: connector to attach 4950c8e32cc1SDaniel Vetter * @encoder: encoder to attach @connector to 4951c8e32cc1SDaniel Vetter * 4952c8e32cc1SDaniel Vetter * This function links up a connector to an encoder. Note that the routing 4953c8e32cc1SDaniel Vetter * restrictions between encoders and crtcs are exposed to userspace through the 4954c8e32cc1SDaniel Vetter * possible_clones and possible_crtcs bitmasks. 4955c8e32cc1SDaniel Vetter * 4956c8e32cc1SDaniel Vetter * Returns: 49571a498633SDaniel Vetter * Zero on success, negative errno on failure. 4958c8e32cc1SDaniel Vetter */ 4959f453ba04SDave Airlie int drm_mode_connector_attach_encoder(struct drm_connector *connector, 4960f453ba04SDave Airlie struct drm_encoder *encoder) 4961f453ba04SDave Airlie { 4962f453ba04SDave Airlie int i; 4963f453ba04SDave Airlie 4964f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 4965f453ba04SDave Airlie if (connector->encoder_ids[i] == 0) { 4966f453ba04SDave Airlie connector->encoder_ids[i] = encoder->base.id; 4967f453ba04SDave Airlie return 0; 4968f453ba04SDave Airlie } 4969f453ba04SDave Airlie } 4970f453ba04SDave Airlie return -ENOMEM; 4971f453ba04SDave Airlie } 4972f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_connector_attach_encoder); 4973f453ba04SDave Airlie 4974c8e32cc1SDaniel Vetter /** 4975c8e32cc1SDaniel Vetter * drm_mode_crtc_set_gamma_size - set the gamma table size 4976c8e32cc1SDaniel Vetter * @crtc: CRTC to set the gamma table size for 4977c8e32cc1SDaniel Vetter * @gamma_size: size of the gamma table 4978c8e32cc1SDaniel Vetter * 4979c8e32cc1SDaniel Vetter * Drivers which support gamma tables should set this to the supported gamma 4980c8e32cc1SDaniel Vetter * table size when initializing the CRTC. Currently the drm core only supports a 4981c8e32cc1SDaniel Vetter * fixed gamma table size. 4982c8e32cc1SDaniel Vetter * 4983c8e32cc1SDaniel Vetter * Returns: 49841a498633SDaniel Vetter * Zero on success, negative errno on failure. 4985c8e32cc1SDaniel Vetter */ 49864cae5b84SSascha Hauer int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 4987f453ba04SDave Airlie int gamma_size) 4988f453ba04SDave Airlie { 4989f453ba04SDave Airlie crtc->gamma_size = gamma_size; 4990f453ba04SDave Airlie 4991bd3f0ff9SThierry Reding crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, 4992bd3f0ff9SThierry Reding GFP_KERNEL); 4993f453ba04SDave Airlie if (!crtc->gamma_store) { 4994f453ba04SDave Airlie crtc->gamma_size = 0; 49954cae5b84SSascha Hauer return -ENOMEM; 4996f453ba04SDave Airlie } 4997f453ba04SDave Airlie 49984cae5b84SSascha Hauer return 0; 4999f453ba04SDave Airlie } 5000f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); 5001f453ba04SDave Airlie 5002c8e32cc1SDaniel Vetter /** 5003c8e32cc1SDaniel Vetter * drm_mode_gamma_set_ioctl - set the gamma table 5004c8e32cc1SDaniel Vetter * @dev: DRM device 5005c8e32cc1SDaniel Vetter * @data: ioctl data 5006c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5007c8e32cc1SDaniel Vetter * 5008c8e32cc1SDaniel Vetter * Set the gamma table of a CRTC to the one passed in by the user. Userspace can 5009c8e32cc1SDaniel Vetter * inquire the required gamma table size through drm_mode_gamma_get_ioctl. 5010c8e32cc1SDaniel Vetter * 5011c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5012c8e32cc1SDaniel Vetter * 5013c8e32cc1SDaniel Vetter * Returns: 50141a498633SDaniel Vetter * Zero on success, negative errno on failure. 5015c8e32cc1SDaniel Vetter */ 5016f453ba04SDave Airlie int drm_mode_gamma_set_ioctl(struct drm_device *dev, 5017f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5018f453ba04SDave Airlie { 5019f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5020f453ba04SDave Airlie struct drm_crtc *crtc; 5021f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5022f453ba04SDave Airlie int size; 5023f453ba04SDave Airlie int ret = 0; 5024f453ba04SDave Airlie 5025fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5026fb3b06c8SDave Airlie return -EINVAL; 5027fb3b06c8SDave Airlie 502884849903SDaniel Vetter drm_modeset_lock_all(dev); 5029a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5030a2b34e22SRob Clark if (!crtc) { 5031f27657f2SVille Syrjälä ret = -ENOENT; 5032f453ba04SDave Airlie goto out; 5033f453ba04SDave Airlie } 5034f453ba04SDave Airlie 5035ebe0f244SLaurent Pinchart if (crtc->funcs->gamma_set == NULL) { 5036ebe0f244SLaurent Pinchart ret = -ENOSYS; 5037ebe0f244SLaurent Pinchart goto out; 5038ebe0f244SLaurent Pinchart } 5039ebe0f244SLaurent Pinchart 5040f453ba04SDave Airlie /* memcpy into gamma store */ 5041f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5042f453ba04SDave Airlie ret = -EINVAL; 5043f453ba04SDave Airlie goto out; 5044f453ba04SDave Airlie } 5045f453ba04SDave Airlie 5046f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5047f453ba04SDave Airlie r_base = crtc->gamma_store; 5048f453ba04SDave Airlie if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { 5049f453ba04SDave Airlie ret = -EFAULT; 5050f453ba04SDave Airlie goto out; 5051f453ba04SDave Airlie } 5052f453ba04SDave Airlie 5053f453ba04SDave Airlie g_base = r_base + size; 5054f453ba04SDave Airlie if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { 5055f453ba04SDave Airlie ret = -EFAULT; 5056f453ba04SDave Airlie goto out; 5057f453ba04SDave Airlie } 5058f453ba04SDave Airlie 5059f453ba04SDave Airlie b_base = g_base + size; 5060f453ba04SDave Airlie if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { 5061f453ba04SDave Airlie ret = -EFAULT; 5062f453ba04SDave Airlie goto out; 5063f453ba04SDave Airlie } 5064f453ba04SDave Airlie 50657203425aSJames Simmons crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 5066f453ba04SDave Airlie 5067f453ba04SDave Airlie out: 506884849903SDaniel Vetter drm_modeset_unlock_all(dev); 5069f453ba04SDave Airlie return ret; 5070f453ba04SDave Airlie 5071f453ba04SDave Airlie } 5072f453ba04SDave Airlie 5073c8e32cc1SDaniel Vetter /** 5074c8e32cc1SDaniel Vetter * drm_mode_gamma_get_ioctl - get the gamma table 5075c8e32cc1SDaniel Vetter * @dev: DRM device 5076c8e32cc1SDaniel Vetter * @data: ioctl data 5077c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5078c8e32cc1SDaniel Vetter * 5079c8e32cc1SDaniel Vetter * Copy the current gamma table into the storage provided. This also provides 5080c8e32cc1SDaniel Vetter * the gamma table size the driver expects, which can be used to size the 5081c8e32cc1SDaniel Vetter * allocated storage. 5082c8e32cc1SDaniel Vetter * 5083c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5084c8e32cc1SDaniel Vetter * 5085c8e32cc1SDaniel Vetter * Returns: 50861a498633SDaniel Vetter * Zero on success, negative errno on failure. 5087c8e32cc1SDaniel Vetter */ 5088f453ba04SDave Airlie int drm_mode_gamma_get_ioctl(struct drm_device *dev, 5089f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5090f453ba04SDave Airlie { 5091f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5092f453ba04SDave Airlie struct drm_crtc *crtc; 5093f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5094f453ba04SDave Airlie int size; 5095f453ba04SDave Airlie int ret = 0; 5096f453ba04SDave Airlie 5097fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5098fb3b06c8SDave Airlie return -EINVAL; 5099fb3b06c8SDave Airlie 510084849903SDaniel Vetter drm_modeset_lock_all(dev); 5101a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5102a2b34e22SRob Clark if (!crtc) { 5103f27657f2SVille Syrjälä ret = -ENOENT; 5104f453ba04SDave Airlie goto out; 5105f453ba04SDave Airlie } 5106f453ba04SDave Airlie 5107f453ba04SDave Airlie /* memcpy into gamma store */ 5108f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5109f453ba04SDave Airlie ret = -EINVAL; 5110f453ba04SDave Airlie goto out; 5111f453ba04SDave Airlie } 5112f453ba04SDave Airlie 5113f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5114f453ba04SDave Airlie r_base = crtc->gamma_store; 5115f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { 5116f453ba04SDave Airlie ret = -EFAULT; 5117f453ba04SDave Airlie goto out; 5118f453ba04SDave Airlie } 5119f453ba04SDave Airlie 5120f453ba04SDave Airlie g_base = r_base + size; 5121f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { 5122f453ba04SDave Airlie ret = -EFAULT; 5123f453ba04SDave Airlie goto out; 5124f453ba04SDave Airlie } 5125f453ba04SDave Airlie 5126f453ba04SDave Airlie b_base = g_base + size; 5127f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { 5128f453ba04SDave Airlie ret = -EFAULT; 5129f453ba04SDave Airlie goto out; 5130f453ba04SDave Airlie } 5131f453ba04SDave Airlie out: 513284849903SDaniel Vetter drm_modeset_unlock_all(dev); 5133f453ba04SDave Airlie return ret; 5134f453ba04SDave Airlie } 5135d91d8a3fSKristian Høgsberg 5136c8e32cc1SDaniel Vetter /** 5137c8e32cc1SDaniel Vetter * drm_mode_page_flip_ioctl - schedule an asynchronous fb update 5138c8e32cc1SDaniel Vetter * @dev: DRM device 5139c8e32cc1SDaniel Vetter * @data: ioctl data 5140c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5141c8e32cc1SDaniel Vetter * 5142c8e32cc1SDaniel Vetter * This schedules an asynchronous update on a given CRTC, called page flip. 5143c8e32cc1SDaniel Vetter * Optionally a drm event is generated to signal the completion of the event. 5144c8e32cc1SDaniel Vetter * Generic drivers cannot assume that a pageflip with changed framebuffer 5145c8e32cc1SDaniel Vetter * properties (including driver specific metadata like tiling layout) will work, 5146c8e32cc1SDaniel Vetter * but some drivers support e.g. pixel format changes through the pageflip 5147c8e32cc1SDaniel Vetter * ioctl. 5148c8e32cc1SDaniel Vetter * 5149c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5150c8e32cc1SDaniel Vetter * 5151c8e32cc1SDaniel Vetter * Returns: 51521a498633SDaniel Vetter * Zero on success, negative errno on failure. 5153c8e32cc1SDaniel Vetter */ 5154d91d8a3fSKristian Høgsberg int drm_mode_page_flip_ioctl(struct drm_device *dev, 5155d91d8a3fSKristian Høgsberg void *data, struct drm_file *file_priv) 5156d91d8a3fSKristian Høgsberg { 5157d91d8a3fSKristian Høgsberg struct drm_mode_crtc_page_flip *page_flip = data; 5158d91d8a3fSKristian Høgsberg struct drm_crtc *crtc; 51593d30a59bSDaniel Vetter struct drm_framebuffer *fb = NULL; 5160d91d8a3fSKristian Høgsberg struct drm_pending_vblank_event *e = NULL; 5161d91d8a3fSKristian Høgsberg unsigned long flags; 5162d91d8a3fSKristian Høgsberg int ret = -EINVAL; 5163d91d8a3fSKristian Høgsberg 5164d91d8a3fSKristian Høgsberg if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || 5165d91d8a3fSKristian Høgsberg page_flip->reserved != 0) 5166d91d8a3fSKristian Høgsberg return -EINVAL; 5167d91d8a3fSKristian Høgsberg 516862f2104fSKeith Packard if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) 516962f2104fSKeith Packard return -EINVAL; 517062f2104fSKeith Packard 5171a2b34e22SRob Clark crtc = drm_crtc_find(dev, page_flip->crtc_id); 5172a2b34e22SRob Clark if (!crtc) 5173f27657f2SVille Syrjälä return -ENOENT; 5174d91d8a3fSKristian Høgsberg 51754d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 5176f4510a27SMatt Roper if (crtc->primary->fb == NULL) { 517790c1efddSChris Wilson /* The framebuffer is currently unbound, presumably 517890c1efddSChris Wilson * due to a hotplug event, that userspace has not 517990c1efddSChris Wilson * yet discovered. 518090c1efddSChris Wilson */ 518190c1efddSChris Wilson ret = -EBUSY; 518290c1efddSChris Wilson goto out; 518390c1efddSChris Wilson } 518490c1efddSChris Wilson 5185d91d8a3fSKristian Høgsberg if (crtc->funcs->page_flip == NULL) 5186d91d8a3fSKristian Høgsberg goto out; 5187d91d8a3fSKristian Høgsberg 5188786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, page_flip->fb_id); 518937c4e705SVille Syrjälä if (!fb) { 519037c4e705SVille Syrjälä ret = -ENOENT; 5191d91d8a3fSKristian Høgsberg goto out; 519237c4e705SVille Syrjälä } 5193d91d8a3fSKristian Høgsberg 5194c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); 5195c11e9283SDamien Lespiau if (ret) 51965f61bb42SVille Syrjälä goto out; 51975f61bb42SVille Syrjälä 5198f4510a27SMatt Roper if (crtc->primary->fb->pixel_format != fb->pixel_format) { 5199909d9cdaSLaurent Pinchart DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); 5200909d9cdaSLaurent Pinchart ret = -EINVAL; 5201909d9cdaSLaurent Pinchart goto out; 5202909d9cdaSLaurent Pinchart } 5203909d9cdaSLaurent Pinchart 5204d91d8a3fSKristian Høgsberg if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 5205d91d8a3fSKristian Høgsberg ret = -ENOMEM; 5206d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5207f76511b9SThierry Reding if (file_priv->event_space < sizeof(e->event)) { 5208d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5209d91d8a3fSKristian Høgsberg goto out; 5210d91d8a3fSKristian Høgsberg } 5211f76511b9SThierry Reding file_priv->event_space -= sizeof(e->event); 5212d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5213d91d8a3fSKristian Høgsberg 5214f76511b9SThierry Reding e = kzalloc(sizeof(*e), GFP_KERNEL); 5215d91d8a3fSKristian Høgsberg if (e == NULL) { 5216d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5217f76511b9SThierry Reding file_priv->event_space += sizeof(e->event); 5218d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5219d91d8a3fSKristian Høgsberg goto out; 5220d91d8a3fSKristian Høgsberg } 5221d91d8a3fSKristian Høgsberg 52227bd4d7beSJesse Barnes e->event.base.type = DRM_EVENT_FLIP_COMPLETE; 5223f76511b9SThierry Reding e->event.base.length = sizeof(e->event); 5224d91d8a3fSKristian Høgsberg e->event.user_data = page_flip->user_data; 5225d91d8a3fSKristian Høgsberg e->base.event = &e->event.base; 5226d91d8a3fSKristian Høgsberg e->base.file_priv = file_priv; 5227d91d8a3fSKristian Høgsberg e->base.destroy = 5228d91d8a3fSKristian Høgsberg (void (*) (struct drm_pending_event *)) kfree; 5229d91d8a3fSKristian Høgsberg } 5230d91d8a3fSKristian Høgsberg 52313d30a59bSDaniel Vetter crtc->primary->old_fb = crtc->primary->fb; 5232ed8d1975SKeith Packard ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); 5233d91d8a3fSKristian Høgsberg if (ret) { 5234aef6a7eeSJoonyoung Shim if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 5235d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5236f76511b9SThierry Reding file_priv->event_space += sizeof(e->event); 5237d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5238d91d8a3fSKristian Høgsberg kfree(e); 5239d91d8a3fSKristian Høgsberg } 5240b0d12325SDaniel Vetter /* Keep the old fb, don't unref it. */ 52413d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5242b0d12325SDaniel Vetter } else { 52433cb43cc0SDaniel Vetter crtc->primary->fb = fb; 5244b0d12325SDaniel Vetter /* Unref only the old framebuffer. */ 5245b0d12325SDaniel Vetter fb = NULL; 5246aef6a7eeSJoonyoung Shim } 5247d91d8a3fSKristian Høgsberg 5248d91d8a3fSKristian Høgsberg out: 5249b0d12325SDaniel Vetter if (fb) 5250b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 52513d30a59bSDaniel Vetter if (crtc->primary->old_fb) 52523d30a59bSDaniel Vetter drm_framebuffer_unreference(crtc->primary->old_fb); 52533d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5254d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 5255b4d5e7d1SDaniel Vetter 5256d91d8a3fSKristian Høgsberg return ret; 5257d91d8a3fSKristian Høgsberg } 5258eb033556SChris Wilson 5259c8e32cc1SDaniel Vetter /** 5260c8e32cc1SDaniel Vetter * drm_mode_config_reset - call ->reset callbacks 5261c8e32cc1SDaniel Vetter * @dev: drm device 5262c8e32cc1SDaniel Vetter * 5263c8e32cc1SDaniel Vetter * This functions calls all the crtc's, encoder's and connector's ->reset 5264c8e32cc1SDaniel Vetter * callback. Drivers can use this in e.g. their driver load or resume code to 5265c8e32cc1SDaniel Vetter * reset hardware and software state. 5266c8e32cc1SDaniel Vetter */ 5267eb033556SChris Wilson void drm_mode_config_reset(struct drm_device *dev) 5268eb033556SChris Wilson { 5269eb033556SChris Wilson struct drm_crtc *crtc; 52702a0d7cfdSDaniel Vetter struct drm_plane *plane; 5271eb033556SChris Wilson struct drm_encoder *encoder; 5272eb033556SChris Wilson struct drm_connector *connector; 5273eb033556SChris Wilson 5274e4f62546SDaniel Vetter drm_for_each_plane(plane, dev) 52752a0d7cfdSDaniel Vetter if (plane->funcs->reset) 52762a0d7cfdSDaniel Vetter plane->funcs->reset(plane); 52772a0d7cfdSDaniel Vetter 5278e4f62546SDaniel Vetter drm_for_each_crtc(crtc, dev) 5279eb033556SChris Wilson if (crtc->funcs->reset) 5280eb033556SChris Wilson crtc->funcs->reset(crtc); 5281eb033556SChris Wilson 5282e4f62546SDaniel Vetter drm_for_each_encoder(encoder, dev) 5283eb033556SChris Wilson if (encoder->funcs->reset) 5284eb033556SChris Wilson encoder->funcs->reset(encoder); 5285eb033556SChris Wilson 5286f8c2ba31SDaniel Vetter mutex_lock(&dev->mode_config.mutex); 52874eebf60bSDave Airlie drm_for_each_connector(connector, dev) 5288eb033556SChris Wilson if (connector->funcs->reset) 5289eb033556SChris Wilson connector->funcs->reset(connector); 5290f8c2ba31SDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 52915e2cb2f6SDaniel Vetter } 5292eb033556SChris Wilson EXPORT_SYMBOL(drm_mode_config_reset); 5293ff72145bSDave Airlie 5294c8e32cc1SDaniel Vetter /** 5295c8e32cc1SDaniel Vetter * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer 5296c8e32cc1SDaniel Vetter * @dev: DRM device 5297c8e32cc1SDaniel Vetter * @data: ioctl data 5298c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5299c8e32cc1SDaniel Vetter * 5300c8e32cc1SDaniel Vetter * This creates a new dumb buffer in the driver's backing storage manager (GEM, 5301c8e32cc1SDaniel Vetter * TTM or something else entirely) and returns the resulting buffer handle. This 5302c8e32cc1SDaniel Vetter * handle can then be wrapped up into a framebuffer modeset object. 5303c8e32cc1SDaniel Vetter * 5304c8e32cc1SDaniel Vetter * Note that userspace is not allowed to use such objects for render 5305c8e32cc1SDaniel Vetter * acceleration - drivers must create their own private ioctls for such a use 5306c8e32cc1SDaniel Vetter * case. 5307c8e32cc1SDaniel Vetter * 5308c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5309c8e32cc1SDaniel Vetter * 5310c8e32cc1SDaniel Vetter * Returns: 53111a498633SDaniel Vetter * Zero on success, negative errno on failure. 5312c8e32cc1SDaniel Vetter */ 5313ff72145bSDave Airlie int drm_mode_create_dumb_ioctl(struct drm_device *dev, 5314ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5315ff72145bSDave Airlie { 5316ff72145bSDave Airlie struct drm_mode_create_dumb *args = data; 5317b28cd41fSDavid Herrmann u32 cpp, stride, size; 5318ff72145bSDave Airlie 5319ff72145bSDave Airlie if (!dev->driver->dumb_create) 5320ff72145bSDave Airlie return -ENOSYS; 5321b28cd41fSDavid Herrmann if (!args->width || !args->height || !args->bpp) 5322b28cd41fSDavid Herrmann return -EINVAL; 5323b28cd41fSDavid Herrmann 5324b28cd41fSDavid Herrmann /* overflow checks for 32bit size calculations */ 532500e72089SDavid Herrmann /* NOTE: DIV_ROUND_UP() can overflow */ 5326b28cd41fSDavid Herrmann cpp = DIV_ROUND_UP(args->bpp, 8); 532700e72089SDavid Herrmann if (!cpp || cpp > 0xffffffffU / args->width) 5328b28cd41fSDavid Herrmann return -EINVAL; 5329b28cd41fSDavid Herrmann stride = cpp * args->width; 5330b28cd41fSDavid Herrmann if (args->height > 0xffffffffU / stride) 5331b28cd41fSDavid Herrmann return -EINVAL; 5332b28cd41fSDavid Herrmann 5333b28cd41fSDavid Herrmann /* test for wrap-around */ 5334b28cd41fSDavid Herrmann size = args->height * stride; 5335b28cd41fSDavid Herrmann if (PAGE_ALIGN(size) == 0) 5336b28cd41fSDavid Herrmann return -EINVAL; 5337b28cd41fSDavid Herrmann 5338f6085952SThierry Reding /* 5339f6085952SThierry Reding * handle, pitch and size are output parameters. Zero them out to 5340f6085952SThierry Reding * prevent drivers from accidentally using uninitialized data. Since 5341f6085952SThierry Reding * not all existing userspace is clearing these fields properly we 5342f6085952SThierry Reding * cannot reject IOCTL with garbage in them. 5343f6085952SThierry Reding */ 5344f6085952SThierry Reding args->handle = 0; 5345f6085952SThierry Reding args->pitch = 0; 5346f6085952SThierry Reding args->size = 0; 5347f6085952SThierry Reding 5348ff72145bSDave Airlie return dev->driver->dumb_create(file_priv, dev, args); 5349ff72145bSDave Airlie } 5350ff72145bSDave Airlie 5351c8e32cc1SDaniel Vetter /** 5352c8e32cc1SDaniel Vetter * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer 5353c8e32cc1SDaniel Vetter * @dev: DRM device 5354c8e32cc1SDaniel Vetter * @data: ioctl data 5355c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5356c8e32cc1SDaniel Vetter * 5357c8e32cc1SDaniel Vetter * Allocate an offset in the drm device node's address space to be able to 5358c8e32cc1SDaniel Vetter * memory map a dumb buffer. 5359c8e32cc1SDaniel Vetter * 5360c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5361c8e32cc1SDaniel Vetter * 5362c8e32cc1SDaniel Vetter * Returns: 53631a498633SDaniel Vetter * Zero on success, negative errno on failure. 5364c8e32cc1SDaniel Vetter */ 5365ff72145bSDave Airlie int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 5366ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5367ff72145bSDave Airlie { 5368ff72145bSDave Airlie struct drm_mode_map_dumb *args = data; 5369ff72145bSDave Airlie 5370ff72145bSDave Airlie /* call driver ioctl to get mmap offset */ 5371ff72145bSDave Airlie if (!dev->driver->dumb_map_offset) 5372ff72145bSDave Airlie return -ENOSYS; 5373ff72145bSDave Airlie 5374ff72145bSDave Airlie return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); 5375ff72145bSDave Airlie } 5376ff72145bSDave Airlie 5377c8e32cc1SDaniel Vetter /** 5378c8e32cc1SDaniel Vetter * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer 5379c8e32cc1SDaniel Vetter * @dev: DRM device 5380c8e32cc1SDaniel Vetter * @data: ioctl data 5381c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5382c8e32cc1SDaniel Vetter * 5383c8e32cc1SDaniel Vetter * This destroys the userspace handle for the given dumb backing storage buffer. 5384c8e32cc1SDaniel Vetter * Since buffer objects must be reference counted in the kernel a buffer object 5385c8e32cc1SDaniel Vetter * won't be immediately freed if a framebuffer modeset object still uses it. 5386c8e32cc1SDaniel Vetter * 5387c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5388c8e32cc1SDaniel Vetter * 5389c8e32cc1SDaniel Vetter * Returns: 53901a498633SDaniel Vetter * Zero on success, negative errno on failure. 5391c8e32cc1SDaniel Vetter */ 5392ff72145bSDave Airlie int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 5393ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5394ff72145bSDave Airlie { 5395ff72145bSDave Airlie struct drm_mode_destroy_dumb *args = data; 5396ff72145bSDave Airlie 5397ff72145bSDave Airlie if (!dev->driver->dumb_destroy) 5398ff72145bSDave Airlie return -ENOSYS; 5399ff72145bSDave Airlie 5400ff72145bSDave Airlie return dev->driver->dumb_destroy(file_priv, dev, args->handle); 5401ff72145bSDave Airlie } 5402248dbc23SDave Airlie 5403c8e32cc1SDaniel Vetter /** 5404c8e32cc1SDaniel Vetter * drm_fb_get_bpp_depth - get the bpp/depth values for format 5405c8e32cc1SDaniel Vetter * @format: pixel format (DRM_FORMAT_*) 5406c8e32cc1SDaniel Vetter * @depth: storage for the depth value 5407c8e32cc1SDaniel Vetter * @bpp: storage for the bpp value 5408c8e32cc1SDaniel Vetter * 5409c8e32cc1SDaniel Vetter * This only supports RGB formats here for compat with code that doesn't use 5410c8e32cc1SDaniel Vetter * pixel formats directly yet. 5411248dbc23SDave Airlie */ 5412248dbc23SDave Airlie void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 5413248dbc23SDave Airlie int *bpp) 5414248dbc23SDave Airlie { 5415248dbc23SDave Airlie switch (format) { 5416c51a6bc5SVille Syrjälä case DRM_FORMAT_C8: 541704b3924dSVille Syrjälä case DRM_FORMAT_RGB332: 541804b3924dSVille Syrjälä case DRM_FORMAT_BGR233: 5419248dbc23SDave Airlie *depth = 8; 5420248dbc23SDave Airlie *bpp = 8; 5421248dbc23SDave Airlie break; 542204b3924dSVille Syrjälä case DRM_FORMAT_XRGB1555: 542304b3924dSVille Syrjälä case DRM_FORMAT_XBGR1555: 542404b3924dSVille Syrjälä case DRM_FORMAT_RGBX5551: 542504b3924dSVille Syrjälä case DRM_FORMAT_BGRX5551: 542604b3924dSVille Syrjälä case DRM_FORMAT_ARGB1555: 542704b3924dSVille Syrjälä case DRM_FORMAT_ABGR1555: 542804b3924dSVille Syrjälä case DRM_FORMAT_RGBA5551: 542904b3924dSVille Syrjälä case DRM_FORMAT_BGRA5551: 5430248dbc23SDave Airlie *depth = 15; 5431248dbc23SDave Airlie *bpp = 16; 5432248dbc23SDave Airlie break; 543304b3924dSVille Syrjälä case DRM_FORMAT_RGB565: 543404b3924dSVille Syrjälä case DRM_FORMAT_BGR565: 5435248dbc23SDave Airlie *depth = 16; 5436248dbc23SDave Airlie *bpp = 16; 5437248dbc23SDave Airlie break; 543804b3924dSVille Syrjälä case DRM_FORMAT_RGB888: 543904b3924dSVille Syrjälä case DRM_FORMAT_BGR888: 544004b3924dSVille Syrjälä *depth = 24; 544104b3924dSVille Syrjälä *bpp = 24; 544204b3924dSVille Syrjälä break; 544304b3924dSVille Syrjälä case DRM_FORMAT_XRGB8888: 544404b3924dSVille Syrjälä case DRM_FORMAT_XBGR8888: 544504b3924dSVille Syrjälä case DRM_FORMAT_RGBX8888: 544604b3924dSVille Syrjälä case DRM_FORMAT_BGRX8888: 5447248dbc23SDave Airlie *depth = 24; 5448248dbc23SDave Airlie *bpp = 32; 5449248dbc23SDave Airlie break; 545004b3924dSVille Syrjälä case DRM_FORMAT_XRGB2101010: 545104b3924dSVille Syrjälä case DRM_FORMAT_XBGR2101010: 545204b3924dSVille Syrjälä case DRM_FORMAT_RGBX1010102: 545304b3924dSVille Syrjälä case DRM_FORMAT_BGRX1010102: 545404b3924dSVille Syrjälä case DRM_FORMAT_ARGB2101010: 545504b3924dSVille Syrjälä case DRM_FORMAT_ABGR2101010: 545604b3924dSVille Syrjälä case DRM_FORMAT_RGBA1010102: 545704b3924dSVille Syrjälä case DRM_FORMAT_BGRA1010102: 5458248dbc23SDave Airlie *depth = 30; 5459248dbc23SDave Airlie *bpp = 32; 5460248dbc23SDave Airlie break; 546104b3924dSVille Syrjälä case DRM_FORMAT_ARGB8888: 546204b3924dSVille Syrjälä case DRM_FORMAT_ABGR8888: 546304b3924dSVille Syrjälä case DRM_FORMAT_RGBA8888: 546404b3924dSVille Syrjälä case DRM_FORMAT_BGRA8888: 5465248dbc23SDave Airlie *depth = 32; 5466248dbc23SDave Airlie *bpp = 32; 5467248dbc23SDave Airlie break; 5468248dbc23SDave Airlie default: 546923c453a4SVille Syrjälä DRM_DEBUG_KMS("unsupported pixel format %s\n", 547023c453a4SVille Syrjälä drm_get_format_name(format)); 5471248dbc23SDave Airlie *depth = 0; 5472248dbc23SDave Airlie *bpp = 0; 5473248dbc23SDave Airlie break; 5474248dbc23SDave Airlie } 5475248dbc23SDave Airlie } 5476248dbc23SDave Airlie EXPORT_SYMBOL(drm_fb_get_bpp_depth); 5477141670e9SVille Syrjälä 5478141670e9SVille Syrjälä /** 5479141670e9SVille Syrjälä * drm_format_num_planes - get the number of planes for format 5480141670e9SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 5481141670e9SVille Syrjälä * 5482c8e32cc1SDaniel Vetter * Returns: 5483141670e9SVille Syrjälä * The number of planes used by the specified pixel format. 5484141670e9SVille Syrjälä */ 5485141670e9SVille Syrjälä int drm_format_num_planes(uint32_t format) 5486141670e9SVille Syrjälä { 5487141670e9SVille Syrjälä switch (format) { 5488141670e9SVille Syrjälä case DRM_FORMAT_YUV410: 5489141670e9SVille Syrjälä case DRM_FORMAT_YVU410: 5490141670e9SVille Syrjälä case DRM_FORMAT_YUV411: 5491141670e9SVille Syrjälä case DRM_FORMAT_YVU411: 5492141670e9SVille Syrjälä case DRM_FORMAT_YUV420: 5493141670e9SVille Syrjälä case DRM_FORMAT_YVU420: 5494141670e9SVille Syrjälä case DRM_FORMAT_YUV422: 5495141670e9SVille Syrjälä case DRM_FORMAT_YVU422: 5496141670e9SVille Syrjälä case DRM_FORMAT_YUV444: 5497141670e9SVille Syrjälä case DRM_FORMAT_YVU444: 5498141670e9SVille Syrjälä return 3; 5499141670e9SVille Syrjälä case DRM_FORMAT_NV12: 5500141670e9SVille Syrjälä case DRM_FORMAT_NV21: 5501141670e9SVille Syrjälä case DRM_FORMAT_NV16: 5502141670e9SVille Syrjälä case DRM_FORMAT_NV61: 5503ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 5504ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 5505141670e9SVille Syrjälä return 2; 5506141670e9SVille Syrjälä default: 5507141670e9SVille Syrjälä return 1; 5508141670e9SVille Syrjälä } 5509141670e9SVille Syrjälä } 5510141670e9SVille Syrjälä EXPORT_SYMBOL(drm_format_num_planes); 55115a86bd55SVille Syrjälä 55125a86bd55SVille Syrjälä /** 55135a86bd55SVille Syrjälä * drm_format_plane_cpp - determine the bytes per pixel value 55145a86bd55SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 55155a86bd55SVille Syrjälä * @plane: plane index 55165a86bd55SVille Syrjälä * 5517c8e32cc1SDaniel Vetter * Returns: 55185a86bd55SVille Syrjälä * The bytes per pixel value for the specified plane. 55195a86bd55SVille Syrjälä */ 55205a86bd55SVille Syrjälä int drm_format_plane_cpp(uint32_t format, int plane) 55215a86bd55SVille Syrjälä { 55225a86bd55SVille Syrjälä unsigned int depth; 55235a86bd55SVille Syrjälä int bpp; 55245a86bd55SVille Syrjälä 55255a86bd55SVille Syrjälä if (plane >= drm_format_num_planes(format)) 55265a86bd55SVille Syrjälä return 0; 55275a86bd55SVille Syrjälä 55285a86bd55SVille Syrjälä switch (format) { 55295a86bd55SVille Syrjälä case DRM_FORMAT_YUYV: 55305a86bd55SVille Syrjälä case DRM_FORMAT_YVYU: 55315a86bd55SVille Syrjälä case DRM_FORMAT_UYVY: 55325a86bd55SVille Syrjälä case DRM_FORMAT_VYUY: 55335a86bd55SVille Syrjälä return 2; 55345a86bd55SVille Syrjälä case DRM_FORMAT_NV12: 55355a86bd55SVille Syrjälä case DRM_FORMAT_NV21: 55365a86bd55SVille Syrjälä case DRM_FORMAT_NV16: 55375a86bd55SVille Syrjälä case DRM_FORMAT_NV61: 5538ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 5539ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 55405a86bd55SVille Syrjälä return plane ? 2 : 1; 55415a86bd55SVille Syrjälä case DRM_FORMAT_YUV410: 55425a86bd55SVille Syrjälä case DRM_FORMAT_YVU410: 55435a86bd55SVille Syrjälä case DRM_FORMAT_YUV411: 55445a86bd55SVille Syrjälä case DRM_FORMAT_YVU411: 55455a86bd55SVille Syrjälä case DRM_FORMAT_YUV420: 55465a86bd55SVille Syrjälä case DRM_FORMAT_YVU420: 55475a86bd55SVille Syrjälä case DRM_FORMAT_YUV422: 55485a86bd55SVille Syrjälä case DRM_FORMAT_YVU422: 55495a86bd55SVille Syrjälä case DRM_FORMAT_YUV444: 55505a86bd55SVille Syrjälä case DRM_FORMAT_YVU444: 55515a86bd55SVille Syrjälä return 1; 55525a86bd55SVille Syrjälä default: 55535a86bd55SVille Syrjälä drm_fb_get_bpp_depth(format, &depth, &bpp); 55545a86bd55SVille Syrjälä return bpp >> 3; 55555a86bd55SVille Syrjälä } 55565a86bd55SVille Syrjälä } 55575a86bd55SVille Syrjälä EXPORT_SYMBOL(drm_format_plane_cpp); 555801b68b04SVille Syrjälä 555901b68b04SVille Syrjälä /** 556001b68b04SVille Syrjälä * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor 556101b68b04SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 556201b68b04SVille Syrjälä * 5563c8e32cc1SDaniel Vetter * Returns: 556401b68b04SVille Syrjälä * The horizontal chroma subsampling factor for the 556501b68b04SVille Syrjälä * specified pixel format. 556601b68b04SVille Syrjälä */ 556701b68b04SVille Syrjälä int drm_format_horz_chroma_subsampling(uint32_t format) 556801b68b04SVille Syrjälä { 556901b68b04SVille Syrjälä switch (format) { 557001b68b04SVille Syrjälä case DRM_FORMAT_YUV411: 557101b68b04SVille Syrjälä case DRM_FORMAT_YVU411: 557201b68b04SVille Syrjälä case DRM_FORMAT_YUV410: 557301b68b04SVille Syrjälä case DRM_FORMAT_YVU410: 557401b68b04SVille Syrjälä return 4; 557501b68b04SVille Syrjälä case DRM_FORMAT_YUYV: 557601b68b04SVille Syrjälä case DRM_FORMAT_YVYU: 557701b68b04SVille Syrjälä case DRM_FORMAT_UYVY: 557801b68b04SVille Syrjälä case DRM_FORMAT_VYUY: 557901b68b04SVille Syrjälä case DRM_FORMAT_NV12: 558001b68b04SVille Syrjälä case DRM_FORMAT_NV21: 558101b68b04SVille Syrjälä case DRM_FORMAT_NV16: 558201b68b04SVille Syrjälä case DRM_FORMAT_NV61: 558301b68b04SVille Syrjälä case DRM_FORMAT_YUV422: 558401b68b04SVille Syrjälä case DRM_FORMAT_YVU422: 558501b68b04SVille Syrjälä case DRM_FORMAT_YUV420: 558601b68b04SVille Syrjälä case DRM_FORMAT_YVU420: 558701b68b04SVille Syrjälä return 2; 558801b68b04SVille Syrjälä default: 558901b68b04SVille Syrjälä return 1; 559001b68b04SVille Syrjälä } 559101b68b04SVille Syrjälä } 559201b68b04SVille Syrjälä EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); 559301b68b04SVille Syrjälä 559401b68b04SVille Syrjälä /** 559501b68b04SVille Syrjälä * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor 559601b68b04SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 559701b68b04SVille Syrjälä * 5598c8e32cc1SDaniel Vetter * Returns: 559901b68b04SVille Syrjälä * The vertical chroma subsampling factor for the 560001b68b04SVille Syrjälä * specified pixel format. 560101b68b04SVille Syrjälä */ 560201b68b04SVille Syrjälä int drm_format_vert_chroma_subsampling(uint32_t format) 560301b68b04SVille Syrjälä { 560401b68b04SVille Syrjälä switch (format) { 560501b68b04SVille Syrjälä case DRM_FORMAT_YUV410: 560601b68b04SVille Syrjälä case DRM_FORMAT_YVU410: 560701b68b04SVille Syrjälä return 4; 560801b68b04SVille Syrjälä case DRM_FORMAT_YUV420: 560901b68b04SVille Syrjälä case DRM_FORMAT_YVU420: 561001b68b04SVille Syrjälä case DRM_FORMAT_NV12: 561101b68b04SVille Syrjälä case DRM_FORMAT_NV21: 561201b68b04SVille Syrjälä return 2; 561301b68b04SVille Syrjälä default: 561401b68b04SVille Syrjälä return 1; 561501b68b04SVille Syrjälä } 561601b68b04SVille Syrjälä } 561701b68b04SVille Syrjälä EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); 561887d24fc3SLaurent Pinchart 561987d24fc3SLaurent Pinchart /** 56203c9855f6SVille Syrjälä * drm_rotation_simplify() - Try to simplify the rotation 56213c9855f6SVille Syrjälä * @rotation: Rotation to be simplified 56223c9855f6SVille Syrjälä * @supported_rotations: Supported rotations 56233c9855f6SVille Syrjälä * 56243c9855f6SVille Syrjälä * Attempt to simplify the rotation to a form that is supported. 56253c9855f6SVille Syrjälä * Eg. if the hardware supports everything except DRM_REFLECT_X 56263c9855f6SVille Syrjälä * one could call this function like this: 56273c9855f6SVille Syrjälä * 56283c9855f6SVille Syrjälä * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | 56293c9855f6SVille Syrjälä * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | 56303c9855f6SVille Syrjälä * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); 56313c9855f6SVille Syrjälä * 56323c9855f6SVille Syrjälä * to eliminate the DRM_ROTATE_X flag. Depending on what kind of 56333c9855f6SVille Syrjälä * transforms the hardware supports, this function may not 56343c9855f6SVille Syrjälä * be able to produce a supported transform, so the caller should 56353c9855f6SVille Syrjälä * check the result afterwards. 56363c9855f6SVille Syrjälä */ 56373c9855f6SVille Syrjälä unsigned int drm_rotation_simplify(unsigned int rotation, 56383c9855f6SVille Syrjälä unsigned int supported_rotations) 56393c9855f6SVille Syrjälä { 56403c9855f6SVille Syrjälä if (rotation & ~supported_rotations) { 56413c9855f6SVille Syrjälä rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); 56423c9855f6SVille Syrjälä rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4); 56433c9855f6SVille Syrjälä } 56443c9855f6SVille Syrjälä 56453c9855f6SVille Syrjälä return rotation; 56463c9855f6SVille Syrjälä } 56473c9855f6SVille Syrjälä EXPORT_SYMBOL(drm_rotation_simplify); 56483c9855f6SVille Syrjälä 56493c9855f6SVille Syrjälä /** 565087d24fc3SLaurent Pinchart * drm_mode_config_init - initialize DRM mode_configuration structure 565187d24fc3SLaurent Pinchart * @dev: DRM device 565287d24fc3SLaurent Pinchart * 565387d24fc3SLaurent Pinchart * Initialize @dev's mode_config structure, used for tracking the graphics 565487d24fc3SLaurent Pinchart * configuration of @dev. 565587d24fc3SLaurent Pinchart * 565687d24fc3SLaurent Pinchart * Since this initializes the modeset locks, no locking is possible. Which is no 565787d24fc3SLaurent Pinchart * problem, since this should happen single threaded at init time. It is the 565887d24fc3SLaurent Pinchart * driver's problem to ensure this guarantee. 565987d24fc3SLaurent Pinchart * 566087d24fc3SLaurent Pinchart */ 566187d24fc3SLaurent Pinchart void drm_mode_config_init(struct drm_device *dev) 566287d24fc3SLaurent Pinchart { 566387d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.mutex); 566451fd371bSRob Clark drm_modeset_lock_init(&dev->mode_config.connection_mutex); 566587d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.idr_mutex); 566687d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.fb_lock); 56678fb6e7a5SDaniel Stone mutex_init(&dev->mode_config.blob_lock); 566887d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.fb_list); 566987d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.crtc_list); 567087d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.connector_list); 567187d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.encoder_list); 567287d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_list); 567387d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_blob_list); 567487d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.plane_list); 567587d24fc3SLaurent Pinchart idr_init(&dev->mode_config.crtc_idr); 5676138f9ebbSDave Airlie idr_init(&dev->mode_config.tile_idr); 567787d24fc3SLaurent Pinchart 567887d24fc3SLaurent Pinchart drm_modeset_lock_all(dev); 56796b4959f4SRob Clark drm_mode_create_standard_properties(dev); 568087d24fc3SLaurent Pinchart drm_modeset_unlock_all(dev); 568187d24fc3SLaurent Pinchart 568287d24fc3SLaurent Pinchart /* Just to be sure */ 568387d24fc3SLaurent Pinchart dev->mode_config.num_fb = 0; 568487d24fc3SLaurent Pinchart dev->mode_config.num_connector = 0; 568587d24fc3SLaurent Pinchart dev->mode_config.num_crtc = 0; 568687d24fc3SLaurent Pinchart dev->mode_config.num_encoder = 0; 5687e27dde3eSMatt Roper dev->mode_config.num_overlay_plane = 0; 5688e27dde3eSMatt Roper dev->mode_config.num_total_plane = 0; 568987d24fc3SLaurent Pinchart } 569087d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_init); 569187d24fc3SLaurent Pinchart 569287d24fc3SLaurent Pinchart /** 569387d24fc3SLaurent Pinchart * drm_mode_config_cleanup - free up DRM mode_config info 569487d24fc3SLaurent Pinchart * @dev: DRM device 569587d24fc3SLaurent Pinchart * 569687d24fc3SLaurent Pinchart * Free up all the connectors and CRTCs associated with this DRM device, then 569787d24fc3SLaurent Pinchart * free up the framebuffers and associated buffer objects. 569887d24fc3SLaurent Pinchart * 569987d24fc3SLaurent Pinchart * Note that since this /should/ happen single-threaded at driver/device 570087d24fc3SLaurent Pinchart * teardown time, no locking is required. It's the driver's job to ensure that 570187d24fc3SLaurent Pinchart * this guarantee actually holds true. 570287d24fc3SLaurent Pinchart * 570387d24fc3SLaurent Pinchart * FIXME: cleanup any dangling user buffer objects too 570487d24fc3SLaurent Pinchart */ 570587d24fc3SLaurent Pinchart void drm_mode_config_cleanup(struct drm_device *dev) 570687d24fc3SLaurent Pinchart { 570787d24fc3SLaurent Pinchart struct drm_connector *connector, *ot; 570887d24fc3SLaurent Pinchart struct drm_crtc *crtc, *ct; 570987d24fc3SLaurent Pinchart struct drm_encoder *encoder, *enct; 571087d24fc3SLaurent Pinchart struct drm_framebuffer *fb, *fbt; 571187d24fc3SLaurent Pinchart struct drm_property *property, *pt; 571287d24fc3SLaurent Pinchart struct drm_property_blob *blob, *bt; 571387d24fc3SLaurent Pinchart struct drm_plane *plane, *plt; 571487d24fc3SLaurent Pinchart 571587d24fc3SLaurent Pinchart list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, 571687d24fc3SLaurent Pinchart head) { 571787d24fc3SLaurent Pinchart encoder->funcs->destroy(encoder); 571887d24fc3SLaurent Pinchart } 571987d24fc3SLaurent Pinchart 572087d24fc3SLaurent Pinchart list_for_each_entry_safe(connector, ot, 572187d24fc3SLaurent Pinchart &dev->mode_config.connector_list, head) { 572287d24fc3SLaurent Pinchart connector->funcs->destroy(connector); 572387d24fc3SLaurent Pinchart } 572487d24fc3SLaurent Pinchart 572587d24fc3SLaurent Pinchart list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, 572687d24fc3SLaurent Pinchart head) { 572787d24fc3SLaurent Pinchart drm_property_destroy(dev, property); 572887d24fc3SLaurent Pinchart } 572987d24fc3SLaurent Pinchart 573087d24fc3SLaurent Pinchart list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, 5731e2f5d2eaSDaniel Stone head_global) { 57326bcacf51SDaniel Stone drm_property_unreference_blob(blob); 573387d24fc3SLaurent Pinchart } 573487d24fc3SLaurent Pinchart 573587d24fc3SLaurent Pinchart /* 573687d24fc3SLaurent Pinchart * Single-threaded teardown context, so it's not required to grab the 573787d24fc3SLaurent Pinchart * fb_lock to protect against concurrent fb_list access. Contrary, it 573887d24fc3SLaurent Pinchart * would actually deadlock with the drm_framebuffer_cleanup function. 573987d24fc3SLaurent Pinchart * 574087d24fc3SLaurent Pinchart * Also, if there are any framebuffers left, that's a driver leak now, 574187d24fc3SLaurent Pinchart * so politely WARN about this. 574287d24fc3SLaurent Pinchart */ 574387d24fc3SLaurent Pinchart WARN_ON(!list_empty(&dev->mode_config.fb_list)); 574487d24fc3SLaurent Pinchart list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { 5745c099b55aSMaarten Lankhorst drm_framebuffer_free(&fb->refcount); 574687d24fc3SLaurent Pinchart } 574787d24fc3SLaurent Pinchart 574887d24fc3SLaurent Pinchart list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, 574987d24fc3SLaurent Pinchart head) { 575087d24fc3SLaurent Pinchart plane->funcs->destroy(plane); 575187d24fc3SLaurent Pinchart } 575287d24fc3SLaurent Pinchart 575387d24fc3SLaurent Pinchart list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { 575487d24fc3SLaurent Pinchart crtc->funcs->destroy(crtc); 575587d24fc3SLaurent Pinchart } 575687d24fc3SLaurent Pinchart 5757138f9ebbSDave Airlie idr_destroy(&dev->mode_config.tile_idr); 575887d24fc3SLaurent Pinchart idr_destroy(&dev->mode_config.crtc_idr); 575951fd371bSRob Clark drm_modeset_lock_fini(&dev->mode_config.connection_mutex); 576087d24fc3SLaurent Pinchart } 576187d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_cleanup); 5762c1df5f3cSVille Syrjälä 5763c1df5f3cSVille Syrjälä struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, 5764c1df5f3cSVille Syrjälä unsigned int supported_rotations) 5765c1df5f3cSVille Syrjälä { 5766c1df5f3cSVille Syrjälä static const struct drm_prop_enum_list props[] = { 5767c1df5f3cSVille Syrjälä { DRM_ROTATE_0, "rotate-0" }, 5768c1df5f3cSVille Syrjälä { DRM_ROTATE_90, "rotate-90" }, 5769c1df5f3cSVille Syrjälä { DRM_ROTATE_180, "rotate-180" }, 5770c1df5f3cSVille Syrjälä { DRM_ROTATE_270, "rotate-270" }, 5771c1df5f3cSVille Syrjälä { DRM_REFLECT_X, "reflect-x" }, 5772c1df5f3cSVille Syrjälä { DRM_REFLECT_Y, "reflect-y" }, 5773c1df5f3cSVille Syrjälä }; 5774c1df5f3cSVille Syrjälä 5775c1df5f3cSVille Syrjälä return drm_property_create_bitmask(dev, 0, "rotation", 5776c1df5f3cSVille Syrjälä props, ARRAY_SIZE(props), 5777c1df5f3cSVille Syrjälä supported_rotations); 5778c1df5f3cSVille Syrjälä } 5779c1df5f3cSVille Syrjälä EXPORT_SYMBOL(drm_mode_create_rotation_property); 5780138f9ebbSDave Airlie 5781138f9ebbSDave Airlie /** 5782138f9ebbSDave Airlie * DOC: Tile group 5783138f9ebbSDave Airlie * 5784138f9ebbSDave Airlie * Tile groups are used to represent tiled monitors with a unique 5785138f9ebbSDave Airlie * integer identifier. Tiled monitors using DisplayID v1.3 have 5786138f9ebbSDave Airlie * a unique 8-byte handle, we store this in a tile group, so we 5787138f9ebbSDave Airlie * have a common identifier for all tiles in a monitor group. 5788138f9ebbSDave Airlie */ 5789138f9ebbSDave Airlie static void drm_tile_group_free(struct kref *kref) 5790138f9ebbSDave Airlie { 5791138f9ebbSDave Airlie struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); 5792138f9ebbSDave Airlie struct drm_device *dev = tg->dev; 5793138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5794138f9ebbSDave Airlie idr_remove(&dev->mode_config.tile_idr, tg->id); 5795138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5796138f9ebbSDave Airlie kfree(tg); 5797138f9ebbSDave Airlie } 5798138f9ebbSDave Airlie 5799138f9ebbSDave Airlie /** 5800138f9ebbSDave Airlie * drm_mode_put_tile_group - drop a reference to a tile group. 5801138f9ebbSDave Airlie * @dev: DRM device 5802138f9ebbSDave Airlie * @tg: tile group to drop reference to. 5803138f9ebbSDave Airlie * 5804138f9ebbSDave Airlie * drop reference to tile group and free if 0. 5805138f9ebbSDave Airlie */ 5806138f9ebbSDave Airlie void drm_mode_put_tile_group(struct drm_device *dev, 5807138f9ebbSDave Airlie struct drm_tile_group *tg) 5808138f9ebbSDave Airlie { 5809138f9ebbSDave Airlie kref_put(&tg->refcount, drm_tile_group_free); 5810138f9ebbSDave Airlie } 5811138f9ebbSDave Airlie 5812138f9ebbSDave Airlie /** 5813138f9ebbSDave Airlie * drm_mode_get_tile_group - get a reference to an existing tile group 5814138f9ebbSDave Airlie * @dev: DRM device 5815138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 5816138f9ebbSDave Airlie * 5817138f9ebbSDave Airlie * Use the unique bytes to get a reference to an existing tile group. 5818138f9ebbSDave Airlie * 5819138f9ebbSDave Airlie * RETURNS: 5820138f9ebbSDave Airlie * tile group or NULL if not found. 5821138f9ebbSDave Airlie */ 5822138f9ebbSDave Airlie struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, 5823138f9ebbSDave Airlie char topology[8]) 5824138f9ebbSDave Airlie { 5825138f9ebbSDave Airlie struct drm_tile_group *tg; 5826138f9ebbSDave Airlie int id; 5827138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5828138f9ebbSDave Airlie idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { 5829138f9ebbSDave Airlie if (!memcmp(tg->group_data, topology, 8)) { 5830138f9ebbSDave Airlie if (!kref_get_unless_zero(&tg->refcount)) 5831138f9ebbSDave Airlie tg = NULL; 5832138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5833138f9ebbSDave Airlie return tg; 5834138f9ebbSDave Airlie } 5835138f9ebbSDave Airlie } 5836138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5837138f9ebbSDave Airlie return NULL; 5838138f9ebbSDave Airlie } 583981ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_get_tile_group); 5840138f9ebbSDave Airlie 5841138f9ebbSDave Airlie /** 5842138f9ebbSDave Airlie * drm_mode_create_tile_group - create a tile group from a displayid description 5843138f9ebbSDave Airlie * @dev: DRM device 5844138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 5845138f9ebbSDave Airlie * 5846138f9ebbSDave Airlie * Create a tile group for the unique monitor, and get a unique 5847138f9ebbSDave Airlie * identifier for the tile group. 5848138f9ebbSDave Airlie * 5849138f9ebbSDave Airlie * RETURNS: 5850138f9ebbSDave Airlie * new tile group or error. 5851138f9ebbSDave Airlie */ 5852138f9ebbSDave Airlie struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, 5853138f9ebbSDave Airlie char topology[8]) 5854138f9ebbSDave Airlie { 5855138f9ebbSDave Airlie struct drm_tile_group *tg; 5856138f9ebbSDave Airlie int ret; 5857138f9ebbSDave Airlie 5858138f9ebbSDave Airlie tg = kzalloc(sizeof(*tg), GFP_KERNEL); 5859138f9ebbSDave Airlie if (!tg) 5860138f9ebbSDave Airlie return ERR_PTR(-ENOMEM); 5861138f9ebbSDave Airlie 5862138f9ebbSDave Airlie kref_init(&tg->refcount); 5863138f9ebbSDave Airlie memcpy(tg->group_data, topology, 8); 5864138f9ebbSDave Airlie tg->dev = dev; 5865138f9ebbSDave Airlie 5866138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5867138f9ebbSDave Airlie ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); 5868138f9ebbSDave Airlie if (ret >= 0) { 5869138f9ebbSDave Airlie tg->id = ret; 5870138f9ebbSDave Airlie } else { 5871138f9ebbSDave Airlie kfree(tg); 5872138f9ebbSDave Airlie tg = ERR_PTR(ret); 5873138f9ebbSDave Airlie } 5874138f9ebbSDave Airlie 5875138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5876138f9ebbSDave Airlie return tg; 5877138f9ebbSDave Airlie } 587881ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_create_tile_group); 5879