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 { 5412b677e8cSDaniel Vetter struct drm_device *dev = fb->dev; 5422b677e8cSDaniel Vetter 5432b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 5442b677e8cSDaniel Vetter /* Mark fb as reaped and drop idr ref. */ 5452b677e8cSDaniel Vetter __drm_framebuffer_unregister(dev, fb); 5462b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 54736206361SDaniel Vetter } 54836206361SDaniel Vetter EXPORT_SYMBOL(drm_framebuffer_unregister_private); 54936206361SDaniel Vetter 55036206361SDaniel Vetter /** 551f453ba04SDave Airlie * drm_framebuffer_cleanup - remove a framebuffer object 552f453ba04SDave Airlie * @fb: framebuffer to remove 553f453ba04SDave Airlie * 554c8e32cc1SDaniel Vetter * Cleanup framebuffer. This function is intended to be used from the drivers 555c8e32cc1SDaniel Vetter * ->destroy callback. It can also be used to clean up driver private 556c8e32cc1SDaniel Vetter * framebuffers embedded into a larger structure. 55736206361SDaniel Vetter * 55836206361SDaniel Vetter * Note that this function does not remove the fb from active usuage - if it is 55936206361SDaniel Vetter * still used anywhere, hilarity can ensue since userspace could call getfb on 56036206361SDaniel Vetter * the id and get back -EINVAL. Obviously no concern at driver unload time. 56136206361SDaniel Vetter * 56236206361SDaniel Vetter * Also, the framebuffer will not be removed from the lookup idr - for 56336206361SDaniel Vetter * user-created framebuffers this will happen in in the rmfb ioctl. For 56436206361SDaniel Vetter * driver-private objects (e.g. for fbdev) drivers need to explicitly call 56536206361SDaniel Vetter * drm_framebuffer_unregister_private. 566f453ba04SDave Airlie */ 567f453ba04SDave Airlie void drm_framebuffer_cleanup(struct drm_framebuffer *fb) 568f453ba04SDave Airlie { 569f453ba04SDave Airlie struct drm_device *dev = fb->dev; 5708faf6b18SDaniel Vetter 5714b096ac1SDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 572f7eff60eSRob Clark list_del(&fb->head); 573f7eff60eSRob Clark dev->mode_config.num_fb--; 5744b096ac1SDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 575f7eff60eSRob Clark } 576f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_cleanup); 577f7eff60eSRob Clark 578f7eff60eSRob Clark /** 579f7eff60eSRob Clark * drm_framebuffer_remove - remove and unreference a framebuffer object 580f7eff60eSRob Clark * @fb: framebuffer to remove 581f7eff60eSRob Clark * 582f7eff60eSRob Clark * Scans all the CRTCs and planes in @dev's mode_config. If they're 58336206361SDaniel Vetter * using @fb, removes it, setting it to NULL. Then drops the reference to the 584b62584e3SDaniel Vetter * passed-in framebuffer. Might take the modeset locks. 585b62584e3SDaniel Vetter * 586b62584e3SDaniel Vetter * Note that this function optimizes the cleanup away if the caller holds the 587b62584e3SDaniel Vetter * last reference to the framebuffer. It is also guaranteed to not take the 588b62584e3SDaniel Vetter * modeset locks in this case. 589f7eff60eSRob Clark */ 590f7eff60eSRob Clark void drm_framebuffer_remove(struct drm_framebuffer *fb) 591f7eff60eSRob Clark { 592f7eff60eSRob Clark struct drm_device *dev = fb->dev; 593f453ba04SDave Airlie struct drm_crtc *crtc; 5948cf5c917SJesse Barnes struct drm_plane *plane; 5955ef5f72fSDave Airlie struct drm_mode_set set; 5965ef5f72fSDave Airlie int ret; 597f453ba04SDave Airlie 5984b096ac1SDaniel Vetter WARN_ON(!list_empty(&fb->filp_head)); 5998faf6b18SDaniel Vetter 600b62584e3SDaniel Vetter /* 601b62584e3SDaniel Vetter * drm ABI mandates that we remove any deleted framebuffers from active 602b62584e3SDaniel Vetter * useage. But since most sane clients only remove framebuffers they no 603b62584e3SDaniel Vetter * longer need, try to optimize this away. 604b62584e3SDaniel Vetter * 605b62584e3SDaniel Vetter * Since we're holding a reference ourselves, observing a refcount of 1 606b62584e3SDaniel Vetter * means that we're the last holder and can skip it. Also, the refcount 607b62584e3SDaniel Vetter * can never increase from 1 again, so we don't need any barriers or 608b62584e3SDaniel Vetter * locks. 609b62584e3SDaniel Vetter * 610b62584e3SDaniel Vetter * Note that userspace could try to race with use and instate a new 611b62584e3SDaniel Vetter * usage _after_ we've cleared all current ones. End result will be an 612b62584e3SDaniel Vetter * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot 613b62584e3SDaniel Vetter * in this manner. 614b62584e3SDaniel Vetter */ 615b62584e3SDaniel Vetter if (atomic_read(&fb->refcount.refcount) > 1) { 616b62584e3SDaniel Vetter drm_modeset_lock_all(dev); 617f453ba04SDave Airlie /* remove from any CRTC */ 6186295d607SDaniel Vetter drm_for_each_crtc(crtc, dev) { 619f4510a27SMatt Roper if (crtc->primary->fb == fb) { 6205ef5f72fSDave Airlie /* should turn off the crtc */ 6215ef5f72fSDave Airlie memset(&set, 0, sizeof(struct drm_mode_set)); 6225ef5f72fSDave Airlie set.crtc = crtc; 6235ef5f72fSDave Airlie set.fb = NULL; 6242d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 6255ef5f72fSDave Airlie if (ret) 6265ef5f72fSDave Airlie DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); 6275ef5f72fSDave Airlie } 628f453ba04SDave Airlie } 629f453ba04SDave Airlie 6306295d607SDaniel Vetter drm_for_each_plane(plane, dev) { 6319125e618SVille Syrjälä if (plane->fb == fb) 6329125e618SVille Syrjälä drm_plane_force_disable(plane); 6338cf5c917SJesse Barnes } 634b62584e3SDaniel Vetter drm_modeset_unlock_all(dev); 635b62584e3SDaniel Vetter } 6368cf5c917SJesse Barnes 637f7eff60eSRob Clark drm_framebuffer_unreference(fb); 638f453ba04SDave Airlie } 639f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_remove); 640f453ba04SDave Airlie 64151fd371bSRob Clark DEFINE_WW_CLASS(crtc_ww_class); 64251fd371bSRob Clark 643f453ba04SDave Airlie /** 644e13161afSMatt Roper * drm_crtc_init_with_planes - Initialise a new CRTC object with 645e13161afSMatt Roper * specified primary and cursor planes. 646f453ba04SDave Airlie * @dev: DRM device 647f453ba04SDave Airlie * @crtc: CRTC object to init 648e13161afSMatt Roper * @primary: Primary plane for CRTC 649e13161afSMatt Roper * @cursor: Cursor plane for CRTC 650f453ba04SDave Airlie * @funcs: callbacks for the new CRTC 651f453ba04SDave Airlie * 652ad6f5c34SVille Syrjälä * Inits a new object created as base part of a driver crtc object. 6536bfc56aaSVille Syrjälä * 654c8e32cc1SDaniel Vetter * Returns: 6556bfc56aaSVille Syrjälä * Zero on success, error code on failure. 656f453ba04SDave Airlie */ 657e13161afSMatt Roper int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, 658e13161afSMatt Roper struct drm_plane *primary, 659fc1d3e44SMatt Roper struct drm_plane *cursor, 660f453ba04SDave Airlie const struct drm_crtc_funcs *funcs) 661f453ba04SDave Airlie { 66251fd371bSRob Clark struct drm_mode_config *config = &dev->mode_config; 6636bfc56aaSVille Syrjälä int ret; 6646bfc56aaSVille Syrjälä 665522cf91fSBenjamin Gaignard WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); 666522cf91fSBenjamin Gaignard WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); 667522cf91fSBenjamin Gaignard 668f453ba04SDave Airlie crtc->dev = dev; 669f453ba04SDave Airlie crtc->funcs = funcs; 6707c80e128SRob Clark crtc->invert_dimensions = false; 671f453ba04SDave Airlie 67251fd371bSRob Clark drm_modeset_lock_init(&crtc->mutex); 6736bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 6746bfc56aaSVille Syrjälä if (ret) 675baf698b0SDaniel Vetter return ret; 676f453ba04SDave Airlie 677bffd9de0SPaulo Zanoni crtc->base.properties = &crtc->properties; 678bffd9de0SPaulo Zanoni 67951fd371bSRob Clark list_add_tail(&crtc->head, &config->crtc_list); 68051fd371bSRob Clark config->num_crtc++; 6816bfc56aaSVille Syrjälä 682e13161afSMatt Roper crtc->primary = primary; 683fc1d3e44SMatt Roper crtc->cursor = cursor; 684e13161afSMatt Roper if (primary) 685e13161afSMatt Roper primary->possible_crtcs = 1 << drm_crtc_index(crtc); 686fc1d3e44SMatt Roper if (cursor) 687fc1d3e44SMatt Roper cursor->possible_crtcs = 1 << drm_crtc_index(crtc); 688e13161afSMatt Roper 689eab3bbefSDaniel Vetter if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 690eab3bbefSDaniel Vetter drm_object_attach_property(&crtc->base, config->prop_active, 0); 691955f3c33SDaniel Stone drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); 692eab3bbefSDaniel Vetter } 693eab3bbefSDaniel Vetter 694baf698b0SDaniel Vetter return 0; 695f453ba04SDave Airlie } 696e13161afSMatt Roper EXPORT_SYMBOL(drm_crtc_init_with_planes); 697f453ba04SDave Airlie 698f453ba04SDave Airlie /** 699ad6f5c34SVille Syrjälä * drm_crtc_cleanup - Clean up the core crtc usage 700f453ba04SDave Airlie * @crtc: CRTC to cleanup 701f453ba04SDave Airlie * 702ad6f5c34SVille Syrjälä * This function cleans up @crtc and removes it from the DRM mode setting 703ad6f5c34SVille Syrjälä * core. Note that the function does *not* free the crtc structure itself, 704ad6f5c34SVille Syrjälä * this is the responsibility of the caller. 705f453ba04SDave Airlie */ 706f453ba04SDave Airlie void drm_crtc_cleanup(struct drm_crtc *crtc) 707f453ba04SDave Airlie { 708f453ba04SDave Airlie struct drm_device *dev = crtc->dev; 709f453ba04SDave Airlie 710f453ba04SDave Airlie kfree(crtc->gamma_store); 711f453ba04SDave Airlie crtc->gamma_store = NULL; 712f453ba04SDave Airlie 71351fd371bSRob Clark drm_modeset_lock_fini(&crtc->mutex); 71451fd371bSRob Clark 715f453ba04SDave Airlie drm_mode_object_put(dev, &crtc->base); 716f453ba04SDave Airlie list_del(&crtc->head); 717f453ba04SDave Airlie dev->mode_config.num_crtc--; 7183009c037SThierry Reding 7193009c037SThierry Reding WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); 7203009c037SThierry Reding if (crtc->state && crtc->funcs->atomic_destroy_state) 7213009c037SThierry Reding crtc->funcs->atomic_destroy_state(crtc, crtc->state); 722a18c0af1SThierry Reding 723a18c0af1SThierry Reding memset(crtc, 0, sizeof(*crtc)); 724f453ba04SDave Airlie } 725f453ba04SDave Airlie EXPORT_SYMBOL(drm_crtc_cleanup); 726f453ba04SDave Airlie 727f453ba04SDave Airlie /** 728db5f7a6eSRussell King * drm_crtc_index - find the index of a registered CRTC 729db5f7a6eSRussell King * @crtc: CRTC to find index for 730db5f7a6eSRussell King * 731db5f7a6eSRussell King * Given a registered CRTC, return the index of that CRTC within a DRM 732db5f7a6eSRussell King * device's list of CRTCs. 733db5f7a6eSRussell King */ 734db5f7a6eSRussell King unsigned int drm_crtc_index(struct drm_crtc *crtc) 735db5f7a6eSRussell King { 736db5f7a6eSRussell King unsigned int index = 0; 737db5f7a6eSRussell King struct drm_crtc *tmp; 738db5f7a6eSRussell King 739e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) { 740db5f7a6eSRussell King if (tmp == crtc) 741db5f7a6eSRussell King return index; 742db5f7a6eSRussell King 743db5f7a6eSRussell King index++; 744db5f7a6eSRussell King } 745db5f7a6eSRussell King 746db5f7a6eSRussell King BUG(); 747db5f7a6eSRussell King } 748db5f7a6eSRussell King EXPORT_SYMBOL(drm_crtc_index); 749db5f7a6eSRussell King 75086f422d5SLespiau, Damien /* 751f453ba04SDave Airlie * drm_mode_remove - remove and free a mode 752f453ba04SDave Airlie * @connector: connector list to modify 753f453ba04SDave Airlie * @mode: mode to remove 754f453ba04SDave Airlie * 755f453ba04SDave Airlie * Remove @mode from @connector's mode list, then free it. 756f453ba04SDave Airlie */ 75786f422d5SLespiau, Damien static void drm_mode_remove(struct drm_connector *connector, 758f453ba04SDave Airlie struct drm_display_mode *mode) 759f453ba04SDave Airlie { 760f453ba04SDave Airlie list_del(&mode->head); 761554f1d78SSascha Hauer drm_mode_destroy(connector->dev, mode); 762f453ba04SDave Airlie } 763f453ba04SDave Airlie 764f453ba04SDave Airlie /** 765b5571e9dSBoris Brezillon * drm_display_info_set_bus_formats - set the supported bus formats 766b5571e9dSBoris Brezillon * @info: display info to store bus formats in 767e37bfa1aSBoris Brezillon * @formats: array containing the supported bus formats 768e37bfa1aSBoris Brezillon * @num_formats: the number of entries in the fmts array 769b5571e9dSBoris Brezillon * 770b5571e9dSBoris Brezillon * Store the supported bus formats in display info structure. 771b5571e9dSBoris Brezillon * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for 772b5571e9dSBoris Brezillon * a full list of available formats. 773b5571e9dSBoris Brezillon */ 774b5571e9dSBoris Brezillon int drm_display_info_set_bus_formats(struct drm_display_info *info, 775b5571e9dSBoris Brezillon const u32 *formats, 776b5571e9dSBoris Brezillon unsigned int num_formats) 777b5571e9dSBoris Brezillon { 778b5571e9dSBoris Brezillon u32 *fmts = NULL; 779b5571e9dSBoris Brezillon 780b5571e9dSBoris Brezillon if (!formats && num_formats) 781b5571e9dSBoris Brezillon return -EINVAL; 782b5571e9dSBoris Brezillon 783b5571e9dSBoris Brezillon if (formats && num_formats) { 784b5571e9dSBoris Brezillon fmts = kmemdup(formats, sizeof(*formats) * num_formats, 785b5571e9dSBoris Brezillon GFP_KERNEL); 786944579c5SDan Carpenter if (!fmts) 787b5571e9dSBoris Brezillon return -ENOMEM; 788b5571e9dSBoris Brezillon } 789b5571e9dSBoris Brezillon 790b5571e9dSBoris Brezillon kfree(info->bus_formats); 791b5571e9dSBoris Brezillon info->bus_formats = fmts; 792b5571e9dSBoris Brezillon info->num_bus_formats = num_formats; 793b5571e9dSBoris Brezillon 794b5571e9dSBoris Brezillon return 0; 795b5571e9dSBoris Brezillon } 796b5571e9dSBoris Brezillon EXPORT_SYMBOL(drm_display_info_set_bus_formats); 797b5571e9dSBoris Brezillon 798b5571e9dSBoris Brezillon /** 799eaf99c74SChris Wilson * drm_connector_get_cmdline_mode - reads the user's cmdline mode 800eaf99c74SChris Wilson * @connector: connector to quwery 801eaf99c74SChris Wilson * 802eaf99c74SChris Wilson * The kernel supports per-connector configration of its consoles through 803eaf99c74SChris Wilson * use of the video= parameter. This function parses that option and 804eaf99c74SChris Wilson * extracts the user's specified mode (or enable/disable status) for a 805eaf99c74SChris Wilson * particular connector. This is typically only used during the early fbdev 806eaf99c74SChris Wilson * setup. 807eaf99c74SChris Wilson */ 808eaf99c74SChris Wilson static void drm_connector_get_cmdline_mode(struct drm_connector *connector) 809eaf99c74SChris Wilson { 810eaf99c74SChris Wilson struct drm_cmdline_mode *mode = &connector->cmdline_mode; 811eaf99c74SChris Wilson char *option = NULL; 812eaf99c74SChris Wilson 813eaf99c74SChris Wilson if (fb_get_options(connector->name, &option)) 814eaf99c74SChris Wilson return; 815eaf99c74SChris Wilson 816eaf99c74SChris Wilson if (!drm_mode_parse_command_line_for_connector(option, 817eaf99c74SChris Wilson connector, 818eaf99c74SChris Wilson mode)) 819eaf99c74SChris Wilson return; 820eaf99c74SChris Wilson 821eaf99c74SChris Wilson if (mode->force) { 822eaf99c74SChris Wilson const char *s; 823eaf99c74SChris Wilson 824eaf99c74SChris Wilson switch (mode->force) { 825eaf99c74SChris Wilson case DRM_FORCE_OFF: 826eaf99c74SChris Wilson s = "OFF"; 827eaf99c74SChris Wilson break; 828eaf99c74SChris Wilson case DRM_FORCE_ON_DIGITAL: 829eaf99c74SChris Wilson s = "ON - dig"; 830eaf99c74SChris Wilson break; 831eaf99c74SChris Wilson default: 832eaf99c74SChris Wilson case DRM_FORCE_ON: 833eaf99c74SChris Wilson s = "ON"; 834eaf99c74SChris Wilson break; 835eaf99c74SChris Wilson } 836eaf99c74SChris Wilson 837eaf99c74SChris Wilson DRM_INFO("forcing %s connector %s\n", connector->name, s); 838eaf99c74SChris Wilson connector->force = mode->force; 839eaf99c74SChris Wilson } 840eaf99c74SChris Wilson 841eaf99c74SChris Wilson DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", 842eaf99c74SChris Wilson connector->name, 843eaf99c74SChris Wilson mode->xres, mode->yres, 844eaf99c74SChris Wilson mode->refresh_specified ? mode->refresh : 60, 845eaf99c74SChris Wilson mode->rb ? " reduced blanking" : "", 846eaf99c74SChris Wilson mode->margins ? " with margins" : "", 847eaf99c74SChris Wilson mode->interlace ? " interlaced" : ""); 848eaf99c74SChris Wilson } 849eaf99c74SChris Wilson 850eaf99c74SChris Wilson /** 851f453ba04SDave Airlie * drm_connector_init - Init a preallocated connector 852f453ba04SDave Airlie * @dev: DRM device 853f453ba04SDave Airlie * @connector: the connector to init 854f453ba04SDave Airlie * @funcs: callbacks for this connector 855065a50edSDaniel Vetter * @connector_type: user visible type of the connector 856f453ba04SDave Airlie * 857f453ba04SDave Airlie * Initialises a preallocated connector. Connectors should be 858f453ba04SDave Airlie * subclassed as part of driver connector objects. 8596bfc56aaSVille Syrjälä * 860c8e32cc1SDaniel Vetter * Returns: 8616bfc56aaSVille Syrjälä * Zero on success, error code on failure. 862f453ba04SDave Airlie */ 8636bfc56aaSVille Syrjälä int drm_connector_init(struct drm_device *dev, 864f453ba04SDave Airlie struct drm_connector *connector, 865f453ba04SDave Airlie const struct drm_connector_funcs *funcs, 866f453ba04SDave Airlie int connector_type) 867f453ba04SDave Airlie { 868ae16c597SRob Clark struct drm_mode_config *config = &dev->mode_config; 8696bfc56aaSVille Syrjälä int ret; 870b21e3afeSIlia Mirkin struct ida *connector_ida = 871b21e3afeSIlia Mirkin &drm_connector_enum_list[connector_type].ida; 8726bfc56aaSVille Syrjälä 87384849903SDaniel Vetter drm_modeset_lock_all(dev); 874f453ba04SDave Airlie 8752ee39452SDave Airlie ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); 8766bfc56aaSVille Syrjälä if (ret) 8772abdd313SJani Nikula goto out_unlock; 8786bfc56aaSVille Syrjälä 8797e3bdf4aSPaulo Zanoni connector->base.properties = &connector->properties; 880f453ba04SDave Airlie connector->dev = dev; 881f453ba04SDave Airlie connector->funcs = funcs; 882f453ba04SDave Airlie connector->connector_type = connector_type; 883f453ba04SDave Airlie connector->connector_type_id = 884b21e3afeSIlia Mirkin ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); 885b21e3afeSIlia Mirkin if (connector->connector_type_id < 0) { 886b21e3afeSIlia Mirkin ret = connector->connector_type_id; 8872abdd313SJani Nikula goto out_put; 888b21e3afeSIlia Mirkin } 8892abdd313SJani Nikula connector->name = 8902abdd313SJani Nikula kasprintf(GFP_KERNEL, "%s-%d", 8912abdd313SJani Nikula drm_connector_enum_list[connector_type].name, 8922abdd313SJani Nikula connector->connector_type_id); 8932abdd313SJani Nikula if (!connector->name) { 8942abdd313SJani Nikula ret = -ENOMEM; 8952abdd313SJani Nikula goto out_put; 8962abdd313SJani Nikula } 8972abdd313SJani Nikula 898f453ba04SDave Airlie INIT_LIST_HEAD(&connector->probed_modes); 899f453ba04SDave Airlie INIT_LIST_HEAD(&connector->modes); 900f453ba04SDave Airlie connector->edid_blob_ptr = NULL; 9015e2cb2f6SDaniel Vetter connector->status = connector_status_unknown; 902f453ba04SDave Airlie 903eaf99c74SChris Wilson drm_connector_get_cmdline_mode(connector); 904eaf99c74SChris Wilson 905c7eb76f4SDaniel Vetter /* We should add connectors at the end to avoid upsetting the connector 906c7eb76f4SDaniel Vetter * index too much. */ 907ae16c597SRob Clark list_add_tail(&connector->head, &config->connector_list); 908ae16c597SRob Clark config->num_connector++; 909f453ba04SDave Airlie 910a7331e5cSThomas Hellstrom if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) 91158495563SRob Clark drm_object_attach_property(&connector->base, 912ae16c597SRob Clark config->edid_property, 913a7331e5cSThomas Hellstrom 0); 914f453ba04SDave Airlie 91558495563SRob Clark drm_object_attach_property(&connector->base, 916ae16c597SRob Clark config->dpms_property, 0); 917ae16c597SRob Clark 918ae16c597SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 919ae16c597SRob Clark drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); 920ae16c597SRob Clark } 921f453ba04SDave Airlie 92230f65707SThomas Wood connector->debugfs_entry = NULL; 92330f65707SThomas Wood 9242abdd313SJani Nikula out_put: 9252abdd313SJani Nikula if (ret) 9262abdd313SJani Nikula drm_mode_object_put(dev, &connector->base); 9272abdd313SJani Nikula 9282abdd313SJani Nikula out_unlock: 92984849903SDaniel Vetter drm_modeset_unlock_all(dev); 9306bfc56aaSVille Syrjälä 9316bfc56aaSVille Syrjälä return ret; 932f453ba04SDave Airlie } 933f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_init); 934f453ba04SDave Airlie 935f453ba04SDave Airlie /** 936f453ba04SDave Airlie * drm_connector_cleanup - cleans up an initialised connector 937f453ba04SDave Airlie * @connector: connector to cleanup 938f453ba04SDave Airlie * 939f453ba04SDave Airlie * Cleans up the connector but doesn't free the object. 940f453ba04SDave Airlie */ 941f453ba04SDave Airlie void drm_connector_cleanup(struct drm_connector *connector) 942f453ba04SDave Airlie { 943f453ba04SDave Airlie struct drm_device *dev = connector->dev; 944f453ba04SDave Airlie struct drm_display_mode *mode, *t; 945f453ba04SDave Airlie 94640d9b043SDave Airlie if (connector->tile_group) { 94740d9b043SDave Airlie drm_mode_put_tile_group(dev, connector->tile_group); 94840d9b043SDave Airlie connector->tile_group = NULL; 94940d9b043SDave Airlie } 95040d9b043SDave Airlie 951f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 952f453ba04SDave Airlie drm_mode_remove(connector, mode); 953f453ba04SDave Airlie 954f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->modes, head) 955f453ba04SDave Airlie drm_mode_remove(connector, mode); 956f453ba04SDave Airlie 957b21e3afeSIlia Mirkin ida_remove(&drm_connector_enum_list[connector->connector_type].ida, 958b21e3afeSIlia Mirkin connector->connector_type_id); 959b21e3afeSIlia Mirkin 960b5571e9dSBoris Brezillon kfree(connector->display_info.bus_formats); 961f453ba04SDave Airlie drm_mode_object_put(dev, &connector->base); 9622abdd313SJani Nikula kfree(connector->name); 9632abdd313SJani Nikula connector->name = NULL; 964f453ba04SDave Airlie list_del(&connector->head); 9656380c509SJoonyoung Shim dev->mode_config.num_connector--; 9663009c037SThierry Reding 9673009c037SThierry Reding WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); 9683009c037SThierry Reding if (connector->state && connector->funcs->atomic_destroy_state) 9693009c037SThierry Reding connector->funcs->atomic_destroy_state(connector, 9703009c037SThierry Reding connector->state); 971a18c0af1SThierry Reding 972a18c0af1SThierry Reding memset(connector, 0, sizeof(*connector)); 973f453ba04SDave Airlie } 974f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_cleanup); 975f453ba04SDave Airlie 976c8e32cc1SDaniel Vetter /** 97710f637bfSDaniel Vetter * drm_connector_index - find the index of a registered connector 97810f637bfSDaniel Vetter * @connector: connector to find index for 97910f637bfSDaniel Vetter * 98010f637bfSDaniel Vetter * Given a registered connector, return the index of that connector within a DRM 98110f637bfSDaniel Vetter * device's list of connectors. 98210f637bfSDaniel Vetter */ 98310f637bfSDaniel Vetter unsigned int drm_connector_index(struct drm_connector *connector) 98410f637bfSDaniel Vetter { 98510f637bfSDaniel Vetter unsigned int index = 0; 98610f637bfSDaniel Vetter struct drm_connector *tmp; 987c7eb76f4SDaniel Vetter struct drm_mode_config *config = &connector->dev->mode_config; 988c7eb76f4SDaniel Vetter 989c7eb76f4SDaniel Vetter WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); 99010f637bfSDaniel Vetter 9919a9f5ce8SDaniel Vetter drm_for_each_connector(tmp, connector->dev) { 99210f637bfSDaniel Vetter if (tmp == connector) 99310f637bfSDaniel Vetter return index; 99410f637bfSDaniel Vetter 99510f637bfSDaniel Vetter index++; 99610f637bfSDaniel Vetter } 99710f637bfSDaniel Vetter 99810f637bfSDaniel Vetter BUG(); 99910f637bfSDaniel Vetter } 100010f637bfSDaniel Vetter EXPORT_SYMBOL(drm_connector_index); 100110f637bfSDaniel Vetter 100210f637bfSDaniel Vetter /** 100334ea3d38SThomas Wood * drm_connector_register - register a connector 100434ea3d38SThomas Wood * @connector: the connector to register 100534ea3d38SThomas Wood * 100634ea3d38SThomas Wood * Register userspace interfaces for a connector 100734ea3d38SThomas Wood * 100834ea3d38SThomas Wood * Returns: 100934ea3d38SThomas Wood * Zero on success, error code on failure. 101034ea3d38SThomas Wood */ 101134ea3d38SThomas Wood int drm_connector_register(struct drm_connector *connector) 101234ea3d38SThomas Wood { 101330f65707SThomas Wood int ret; 101430f65707SThomas Wood 10152ee39452SDave Airlie drm_mode_object_register(connector->dev, &connector->base); 10162ee39452SDave Airlie 101730f65707SThomas Wood ret = drm_sysfs_connector_add(connector); 101830f65707SThomas Wood if (ret) 101930f65707SThomas Wood return ret; 102030f65707SThomas Wood 102130f65707SThomas Wood ret = drm_debugfs_connector_add(connector); 102230f65707SThomas Wood if (ret) { 102330f65707SThomas Wood drm_sysfs_connector_remove(connector); 102430f65707SThomas Wood return ret; 102530f65707SThomas Wood } 102630f65707SThomas Wood 102730f65707SThomas Wood return 0; 102834ea3d38SThomas Wood } 102934ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_register); 103034ea3d38SThomas Wood 103134ea3d38SThomas Wood /** 103234ea3d38SThomas Wood * drm_connector_unregister - unregister a connector 103334ea3d38SThomas Wood * @connector: the connector to unregister 103434ea3d38SThomas Wood * 103534ea3d38SThomas Wood * Unregister userspace interfaces for a connector 103634ea3d38SThomas Wood */ 103734ea3d38SThomas Wood void drm_connector_unregister(struct drm_connector *connector) 103834ea3d38SThomas Wood { 103934ea3d38SThomas Wood drm_sysfs_connector_remove(connector); 104030f65707SThomas Wood drm_debugfs_connector_remove(connector); 104134ea3d38SThomas Wood } 104234ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_unregister); 104334ea3d38SThomas Wood 104434ea3d38SThomas Wood 104534ea3d38SThomas Wood /** 1046c8e32cc1SDaniel Vetter * drm_connector_unplug_all - unregister connector userspace interfaces 1047c8e32cc1SDaniel Vetter * @dev: drm device 1048c8e32cc1SDaniel Vetter * 1049c8e32cc1SDaniel Vetter * This function unregisters all connector userspace interfaces in sysfs. Should 1050c8e32cc1SDaniel Vetter * be call when the device is disconnected, e.g. from an usb driver's 1051c8e32cc1SDaniel Vetter * ->disconnect callback. 1052c8e32cc1SDaniel Vetter */ 1053cbc7e221SDave Airlie void drm_connector_unplug_all(struct drm_device *dev) 1054cbc7e221SDave Airlie { 1055cbc7e221SDave Airlie struct drm_connector *connector; 1056cbc7e221SDave Airlie 10579a9f5ce8SDaniel Vetter /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ 1058cbc7e221SDave Airlie list_for_each_entry(connector, &dev->mode_config.connector_list, head) 105934ea3d38SThomas Wood drm_connector_unregister(connector); 1060cbc7e221SDave Airlie 1061cbc7e221SDave Airlie } 1062cbc7e221SDave Airlie EXPORT_SYMBOL(drm_connector_unplug_all); 1063cbc7e221SDave Airlie 1064c8e32cc1SDaniel Vetter /** 1065c8e32cc1SDaniel Vetter * drm_encoder_init - Init a preallocated encoder 1066c8e32cc1SDaniel Vetter * @dev: drm device 1067c8e32cc1SDaniel Vetter * @encoder: the encoder to init 1068c8e32cc1SDaniel Vetter * @funcs: callbacks for this encoder 1069c8e32cc1SDaniel Vetter * @encoder_type: user visible type of the encoder 1070c8e32cc1SDaniel Vetter * 1071c8e32cc1SDaniel Vetter * Initialises a preallocated encoder. Encoder should be 1072c8e32cc1SDaniel Vetter * subclassed as part of driver encoder objects. 1073c8e32cc1SDaniel Vetter * 1074c8e32cc1SDaniel Vetter * Returns: 1075c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 1076c8e32cc1SDaniel Vetter */ 10776bfc56aaSVille Syrjälä int drm_encoder_init(struct drm_device *dev, 1078f453ba04SDave Airlie struct drm_encoder *encoder, 1079f453ba04SDave Airlie const struct drm_encoder_funcs *funcs, 1080f453ba04SDave Airlie int encoder_type) 1081f453ba04SDave Airlie { 10826bfc56aaSVille Syrjälä int ret; 10836bfc56aaSVille Syrjälä 108484849903SDaniel Vetter drm_modeset_lock_all(dev); 1085f453ba04SDave Airlie 10866bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); 10876bfc56aaSVille Syrjälä if (ret) 1088e5748946SJani Nikula goto out_unlock; 1089f453ba04SDave Airlie 10906bfc56aaSVille Syrjälä encoder->dev = dev; 1091f453ba04SDave Airlie encoder->encoder_type = encoder_type; 1092f453ba04SDave Airlie encoder->funcs = funcs; 1093e5748946SJani Nikula encoder->name = kasprintf(GFP_KERNEL, "%s-%d", 1094e5748946SJani Nikula drm_encoder_enum_list[encoder_type].name, 1095e5748946SJani Nikula encoder->base.id); 1096e5748946SJani Nikula if (!encoder->name) { 1097e5748946SJani Nikula ret = -ENOMEM; 1098e5748946SJani Nikula goto out_put; 1099e5748946SJani Nikula } 1100f453ba04SDave Airlie 1101f453ba04SDave Airlie list_add_tail(&encoder->head, &dev->mode_config.encoder_list); 1102f453ba04SDave Airlie dev->mode_config.num_encoder++; 1103f453ba04SDave Airlie 1104e5748946SJani Nikula out_put: 1105e5748946SJani Nikula if (ret) 1106e5748946SJani Nikula drm_mode_object_put(dev, &encoder->base); 1107e5748946SJani Nikula 1108e5748946SJani Nikula out_unlock: 110984849903SDaniel Vetter drm_modeset_unlock_all(dev); 11106bfc56aaSVille Syrjälä 11116bfc56aaSVille Syrjälä return ret; 1112f453ba04SDave Airlie } 1113f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_init); 1114f453ba04SDave Airlie 1115c8e32cc1SDaniel Vetter /** 1116c8e32cc1SDaniel Vetter * drm_encoder_cleanup - cleans up an initialised encoder 1117c8e32cc1SDaniel Vetter * @encoder: encoder to cleanup 1118c8e32cc1SDaniel Vetter * 1119c8e32cc1SDaniel Vetter * Cleans up the encoder but doesn't free the object. 1120c8e32cc1SDaniel Vetter */ 1121f453ba04SDave Airlie void drm_encoder_cleanup(struct drm_encoder *encoder) 1122f453ba04SDave Airlie { 1123f453ba04SDave Airlie struct drm_device *dev = encoder->dev; 11244dfd909fSThierry Reding 112584849903SDaniel Vetter drm_modeset_lock_all(dev); 1126f453ba04SDave Airlie drm_mode_object_put(dev, &encoder->base); 1127e5748946SJani Nikula kfree(encoder->name); 1128f453ba04SDave Airlie list_del(&encoder->head); 11296380c509SJoonyoung Shim dev->mode_config.num_encoder--; 113084849903SDaniel Vetter drm_modeset_unlock_all(dev); 1131a18c0af1SThierry Reding 1132a18c0af1SThierry Reding memset(encoder, 0, sizeof(*encoder)); 1133f453ba04SDave Airlie } 1134f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_cleanup); 1135f453ba04SDave Airlie 113635f2c3aeSVille Syrjälä /** 1137dc415ff9SMatt Roper * drm_universal_plane_init - Initialize a new universal plane object 113835f2c3aeSVille Syrjälä * @dev: DRM device 113935f2c3aeSVille Syrjälä * @plane: plane object to init 114035f2c3aeSVille Syrjälä * @possible_crtcs: bitmask of possible CRTCs 114135f2c3aeSVille Syrjälä * @funcs: callbacks for the new plane 114235f2c3aeSVille Syrjälä * @formats: array of supported formats (%DRM_FORMAT_*) 114335f2c3aeSVille Syrjälä * @format_count: number of elements in @formats 1144dc415ff9SMatt Roper * @type: type of plane (overlay, primary, cursor) 114535f2c3aeSVille Syrjälä * 1146dc415ff9SMatt Roper * Initializes a plane object of type @type. 114735f2c3aeSVille Syrjälä * 1148c8e32cc1SDaniel Vetter * Returns: 114935f2c3aeSVille Syrjälä * Zero on success, error code on failure. 115035f2c3aeSVille Syrjälä */ 1151dc415ff9SMatt Roper int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, 11528cf5c917SJesse Barnes unsigned long possible_crtcs, 11538cf5c917SJesse Barnes const struct drm_plane_funcs *funcs, 11540a7eb243SRob Clark const uint32_t *formats, uint32_t format_count, 1155dc415ff9SMatt Roper enum drm_plane_type type) 11568cf5c917SJesse Barnes { 11576b4959f4SRob Clark struct drm_mode_config *config = &dev->mode_config; 11586bfc56aaSVille Syrjälä int ret; 11596bfc56aaSVille Syrjälä 11606bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); 11616bfc56aaSVille Syrjälä if (ret) 1162baf698b0SDaniel Vetter return ret; 11636bfc56aaSVille Syrjälä 11644d02e2deSDaniel Vetter drm_modeset_lock_init(&plane->mutex); 11654d02e2deSDaniel Vetter 11664d93914aSRob Clark plane->base.properties = &plane->properties; 11678cf5c917SJesse Barnes plane->dev = dev; 11688cf5c917SJesse Barnes plane->funcs = funcs; 11692f6c5389SThierry Reding plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), 11708cf5c917SJesse Barnes GFP_KERNEL); 11718cf5c917SJesse Barnes if (!plane->format_types) { 11728cf5c917SJesse Barnes DRM_DEBUG_KMS("out of memory when allocating plane\n"); 11738cf5c917SJesse Barnes drm_mode_object_put(dev, &plane->base); 1174baf698b0SDaniel Vetter return -ENOMEM; 11758cf5c917SJesse Barnes } 11768cf5c917SJesse Barnes 1177308e5bcbSJesse Barnes memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); 11788cf5c917SJesse Barnes plane->format_count = format_count; 11798cf5c917SJesse Barnes plane->possible_crtcs = possible_crtcs; 1180dc415ff9SMatt Roper plane->type = type; 11818cf5c917SJesse Barnes 11826b4959f4SRob Clark list_add_tail(&plane->head, &config->plane_list); 11836b4959f4SRob Clark config->num_total_plane++; 1184e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 11856b4959f4SRob Clark config->num_overlay_plane++; 11868cf5c917SJesse Barnes 11879922ab5aSRob Clark drm_object_attach_property(&plane->base, 11886b4959f4SRob Clark config->plane_type_property, 11899922ab5aSRob Clark plane->type); 11909922ab5aSRob Clark 11916b4959f4SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 11926b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_fb_id, 0); 11936b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); 11946b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); 11956b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); 11966b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); 11976b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); 11986b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_x, 0); 11996b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_y, 0); 12006b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_w, 0); 12016b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_h, 0); 12026b4959f4SRob Clark } 12036b4959f4SRob Clark 1204baf698b0SDaniel Vetter return 0; 12058cf5c917SJesse Barnes } 1206dc415ff9SMatt Roper EXPORT_SYMBOL(drm_universal_plane_init); 1207dc415ff9SMatt Roper 1208dc415ff9SMatt Roper /** 1209dc415ff9SMatt Roper * drm_plane_init - Initialize a legacy plane 1210dc415ff9SMatt Roper * @dev: DRM device 1211dc415ff9SMatt Roper * @plane: plane object to init 1212dc415ff9SMatt Roper * @possible_crtcs: bitmask of possible CRTCs 1213dc415ff9SMatt Roper * @funcs: callbacks for the new plane 1214dc415ff9SMatt Roper * @formats: array of supported formats (%DRM_FORMAT_*) 1215dc415ff9SMatt Roper * @format_count: number of elements in @formats 1216dc415ff9SMatt Roper * @is_primary: plane type (primary vs overlay) 1217dc415ff9SMatt Roper * 1218dc415ff9SMatt Roper * Legacy API to initialize a DRM plane. 1219dc415ff9SMatt Roper * 1220dc415ff9SMatt Roper * New drivers should call drm_universal_plane_init() instead. 1221dc415ff9SMatt Roper * 1222dc415ff9SMatt Roper * Returns: 1223dc415ff9SMatt Roper * Zero on success, error code on failure. 1224dc415ff9SMatt Roper */ 1225dc415ff9SMatt Roper int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, 1226dc415ff9SMatt Roper unsigned long possible_crtcs, 1227dc415ff9SMatt Roper const struct drm_plane_funcs *funcs, 1228dc415ff9SMatt Roper const uint32_t *formats, uint32_t format_count, 1229dc415ff9SMatt Roper bool is_primary) 1230dc415ff9SMatt Roper { 1231dc415ff9SMatt Roper enum drm_plane_type type; 1232dc415ff9SMatt Roper 1233dc415ff9SMatt Roper type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; 1234dc415ff9SMatt Roper return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, 1235dc415ff9SMatt Roper formats, format_count, type); 1236dc415ff9SMatt Roper } 12378cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_init); 12388cf5c917SJesse Barnes 123935f2c3aeSVille Syrjälä /** 124035f2c3aeSVille Syrjälä * drm_plane_cleanup - Clean up the core plane usage 124135f2c3aeSVille Syrjälä * @plane: plane to cleanup 124235f2c3aeSVille Syrjälä * 124335f2c3aeSVille Syrjälä * This function cleans up @plane and removes it from the DRM mode setting 124435f2c3aeSVille Syrjälä * core. Note that the function does *not* free the plane structure itself, 124535f2c3aeSVille Syrjälä * this is the responsibility of the caller. 124635f2c3aeSVille Syrjälä */ 12478cf5c917SJesse Barnes void drm_plane_cleanup(struct drm_plane *plane) 12488cf5c917SJesse Barnes { 12498cf5c917SJesse Barnes struct drm_device *dev = plane->dev; 12508cf5c917SJesse Barnes 125184849903SDaniel Vetter drm_modeset_lock_all(dev); 12528cf5c917SJesse Barnes kfree(plane->format_types); 12538cf5c917SJesse Barnes drm_mode_object_put(dev, &plane->base); 1254dc415ff9SMatt Roper 1255dc415ff9SMatt Roper BUG_ON(list_empty(&plane->head)); 1256dc415ff9SMatt Roper 12578cf5c917SJesse Barnes list_del(&plane->head); 1258e27dde3eSMatt Roper dev->mode_config.num_total_plane--; 1259e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 1260e27dde3eSMatt Roper dev->mode_config.num_overlay_plane--; 126184849903SDaniel Vetter drm_modeset_unlock_all(dev); 12623009c037SThierry Reding 12633009c037SThierry Reding WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); 12643009c037SThierry Reding if (plane->state && plane->funcs->atomic_destroy_state) 12653009c037SThierry Reding plane->funcs->atomic_destroy_state(plane, plane->state); 1266a18c0af1SThierry Reding 1267a18c0af1SThierry Reding memset(plane, 0, sizeof(*plane)); 12688cf5c917SJesse Barnes } 12698cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_cleanup); 12708cf5c917SJesse Barnes 127135f2c3aeSVille Syrjälä /** 127210f637bfSDaniel Vetter * drm_plane_index - find the index of a registered plane 127310f637bfSDaniel Vetter * @plane: plane to find index for 127410f637bfSDaniel Vetter * 127510f637bfSDaniel Vetter * Given a registered plane, return the index of that CRTC within a DRM 127610f637bfSDaniel Vetter * device's list of planes. 127710f637bfSDaniel Vetter */ 127810f637bfSDaniel Vetter unsigned int drm_plane_index(struct drm_plane *plane) 127910f637bfSDaniel Vetter { 128010f637bfSDaniel Vetter unsigned int index = 0; 128110f637bfSDaniel Vetter struct drm_plane *tmp; 128210f637bfSDaniel Vetter 1283e4f62546SDaniel Vetter drm_for_each_plane(tmp, plane->dev) { 128410f637bfSDaniel Vetter if (tmp == plane) 128510f637bfSDaniel Vetter return index; 128610f637bfSDaniel Vetter 128710f637bfSDaniel Vetter index++; 128810f637bfSDaniel Vetter } 128910f637bfSDaniel Vetter 129010f637bfSDaniel Vetter BUG(); 129110f637bfSDaniel Vetter } 129210f637bfSDaniel Vetter EXPORT_SYMBOL(drm_plane_index); 129310f637bfSDaniel Vetter 129410f637bfSDaniel Vetter /** 1295f81338a5SChandra Konduru * drm_plane_from_index - find the registered plane at an index 1296f81338a5SChandra Konduru * @dev: DRM device 1297f81338a5SChandra Konduru * @idx: index of registered plane to find for 1298f81338a5SChandra Konduru * 1299f81338a5SChandra Konduru * Given a plane index, return the registered plane from DRM device's 1300f81338a5SChandra Konduru * list of planes with matching index. 1301f81338a5SChandra Konduru */ 1302f81338a5SChandra Konduru struct drm_plane * 1303f81338a5SChandra Konduru drm_plane_from_index(struct drm_device *dev, int idx) 1304f81338a5SChandra Konduru { 1305f81338a5SChandra Konduru struct drm_plane *plane; 1306f81338a5SChandra Konduru unsigned int i = 0; 1307f81338a5SChandra Konduru 13086295d607SDaniel Vetter drm_for_each_plane(plane, dev) { 1309f81338a5SChandra Konduru if (i == idx) 1310f81338a5SChandra Konduru return plane; 1311f81338a5SChandra Konduru i++; 1312f81338a5SChandra Konduru } 1313f81338a5SChandra Konduru return NULL; 1314f81338a5SChandra Konduru } 1315f81338a5SChandra Konduru EXPORT_SYMBOL(drm_plane_from_index); 1316f81338a5SChandra Konduru 1317f81338a5SChandra Konduru /** 131835f2c3aeSVille Syrjälä * drm_plane_force_disable - Forcibly disable a plane 131935f2c3aeSVille Syrjälä * @plane: plane to disable 132035f2c3aeSVille Syrjälä * 132135f2c3aeSVille Syrjälä * Forces the plane to be disabled. 132235f2c3aeSVille Syrjälä * 132335f2c3aeSVille Syrjälä * Used when the plane's current framebuffer is destroyed, 132435f2c3aeSVille Syrjälä * and when restoring fbdev mode. 132535f2c3aeSVille Syrjälä */ 13269125e618SVille Syrjälä void drm_plane_force_disable(struct drm_plane *plane) 13279125e618SVille Syrjälä { 13289125e618SVille Syrjälä int ret; 13299125e618SVille Syrjälä 13303d30a59bSDaniel Vetter if (!plane->fb) 13319125e618SVille Syrjälä return; 13329125e618SVille Syrjälä 13333d30a59bSDaniel Vetter plane->old_fb = plane->fb; 13349125e618SVille Syrjälä ret = plane->funcs->disable_plane(plane); 1335731cce48SDaniel Vetter if (ret) { 13369125e618SVille Syrjälä DRM_ERROR("failed to disable plane with busy fb\n"); 13373d30a59bSDaniel Vetter plane->old_fb = NULL; 1338731cce48SDaniel Vetter return; 1339731cce48SDaniel Vetter } 13409125e618SVille Syrjälä /* disconnect the plane from the fb and crtc: */ 1341220dd2bcSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 13423d30a59bSDaniel Vetter plane->old_fb = NULL; 13439125e618SVille Syrjälä plane->fb = NULL; 13449125e618SVille Syrjälä plane->crtc = NULL; 13459125e618SVille Syrjälä } 13469125e618SVille Syrjälä EXPORT_SYMBOL(drm_plane_force_disable); 13479125e618SVille Syrjälä 13486b4959f4SRob Clark static int drm_mode_create_standard_properties(struct drm_device *dev) 1349f453ba04SDave Airlie { 1350356af0e1SRob Clark struct drm_property *prop; 1351f453ba04SDave Airlie 1352f453ba04SDave Airlie /* 1353f453ba04SDave Airlie * Standard properties (apply to all connectors) 1354f453ba04SDave Airlie */ 1355356af0e1SRob Clark prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | 1356f453ba04SDave Airlie DRM_MODE_PROP_IMMUTABLE, 1357f453ba04SDave Airlie "EDID", 0); 1358356af0e1SRob Clark if (!prop) 1359356af0e1SRob Clark return -ENOMEM; 1360356af0e1SRob Clark dev->mode_config.edid_property = prop; 1361f453ba04SDave Airlie 1362356af0e1SRob Clark prop = drm_property_create_enum(dev, 0, 13634a67d391SSascha Hauer "DPMS", drm_dpms_enum_list, 13644a67d391SSascha Hauer ARRAY_SIZE(drm_dpms_enum_list)); 1365356af0e1SRob Clark if (!prop) 1366356af0e1SRob Clark return -ENOMEM; 1367356af0e1SRob Clark dev->mode_config.dpms_property = prop; 1368f453ba04SDave Airlie 1369356af0e1SRob Clark prop = drm_property_create(dev, 137043aba7ebSDave Airlie DRM_MODE_PROP_BLOB | 137143aba7ebSDave Airlie DRM_MODE_PROP_IMMUTABLE, 137243aba7ebSDave Airlie "PATH", 0); 1373356af0e1SRob Clark if (!prop) 1374356af0e1SRob Clark return -ENOMEM; 1375356af0e1SRob Clark dev->mode_config.path_property = prop; 137643aba7ebSDave Airlie 1377356af0e1SRob Clark prop = drm_property_create(dev, 13786f134d7bSDave Airlie DRM_MODE_PROP_BLOB | 13796f134d7bSDave Airlie DRM_MODE_PROP_IMMUTABLE, 13806f134d7bSDave Airlie "TILE", 0); 1381356af0e1SRob Clark if (!prop) 1382356af0e1SRob Clark return -ENOMEM; 1383356af0e1SRob Clark dev->mode_config.tile_property = prop; 13846f134d7bSDave Airlie 13856b4959f4SRob Clark prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 13869922ab5aSRob Clark "type", drm_plane_type_enum_list, 13879922ab5aSRob Clark ARRAY_SIZE(drm_plane_type_enum_list)); 13886b4959f4SRob Clark if (!prop) 13896b4959f4SRob Clark return -ENOMEM; 13906b4959f4SRob Clark dev->mode_config.plane_type_property = prop; 13916b4959f4SRob Clark 13926b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 13936b4959f4SRob Clark "SRC_X", 0, UINT_MAX); 13946b4959f4SRob Clark if (!prop) 13956b4959f4SRob Clark return -ENOMEM; 13966b4959f4SRob Clark dev->mode_config.prop_src_x = prop; 13976b4959f4SRob Clark 13986b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 13996b4959f4SRob Clark "SRC_Y", 0, UINT_MAX); 14006b4959f4SRob Clark if (!prop) 14016b4959f4SRob Clark return -ENOMEM; 14026b4959f4SRob Clark dev->mode_config.prop_src_y = prop; 14036b4959f4SRob Clark 14046b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14056b4959f4SRob Clark "SRC_W", 0, UINT_MAX); 14066b4959f4SRob Clark if (!prop) 14076b4959f4SRob Clark return -ENOMEM; 14086b4959f4SRob Clark dev->mode_config.prop_src_w = prop; 14096b4959f4SRob Clark 14106b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14116b4959f4SRob Clark "SRC_H", 0, UINT_MAX); 14126b4959f4SRob Clark if (!prop) 14136b4959f4SRob Clark return -ENOMEM; 14146b4959f4SRob Clark dev->mode_config.prop_src_h = prop; 14156b4959f4SRob Clark 14166b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 14176b4959f4SRob Clark "CRTC_X", INT_MIN, INT_MAX); 14186b4959f4SRob Clark if (!prop) 14196b4959f4SRob Clark return -ENOMEM; 14206b4959f4SRob Clark dev->mode_config.prop_crtc_x = prop; 14216b4959f4SRob Clark 14226b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 14236b4959f4SRob Clark "CRTC_Y", INT_MIN, INT_MAX); 14246b4959f4SRob Clark if (!prop) 14256b4959f4SRob Clark return -ENOMEM; 14266b4959f4SRob Clark dev->mode_config.prop_crtc_y = prop; 14276b4959f4SRob Clark 14286b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14296b4959f4SRob Clark "CRTC_W", 0, INT_MAX); 14306b4959f4SRob Clark if (!prop) 14316b4959f4SRob Clark return -ENOMEM; 14326b4959f4SRob Clark dev->mode_config.prop_crtc_w = prop; 14336b4959f4SRob Clark 14346b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14356b4959f4SRob Clark "CRTC_H", 0, INT_MAX); 14366b4959f4SRob Clark if (!prop) 14376b4959f4SRob Clark return -ENOMEM; 14386b4959f4SRob Clark dev->mode_config.prop_crtc_h = prop; 14396b4959f4SRob Clark 14406b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 14416b4959f4SRob Clark "FB_ID", DRM_MODE_OBJECT_FB); 14426b4959f4SRob Clark if (!prop) 14436b4959f4SRob Clark return -ENOMEM; 14446b4959f4SRob Clark dev->mode_config.prop_fb_id = prop; 14456b4959f4SRob Clark 14466b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 14476b4959f4SRob Clark "CRTC_ID", DRM_MODE_OBJECT_CRTC); 14486b4959f4SRob Clark if (!prop) 14496b4959f4SRob Clark return -ENOMEM; 14506b4959f4SRob Clark dev->mode_config.prop_crtc_id = prop; 14519922ab5aSRob Clark 1452eab3bbefSDaniel Vetter prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, 1453eab3bbefSDaniel Vetter "ACTIVE"); 1454eab3bbefSDaniel Vetter if (!prop) 1455eab3bbefSDaniel Vetter return -ENOMEM; 1456eab3bbefSDaniel Vetter dev->mode_config.prop_active = prop; 1457eab3bbefSDaniel Vetter 1458955f3c33SDaniel Stone prop = drm_property_create(dev, 1459955f3c33SDaniel Stone DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, 1460955f3c33SDaniel Stone "MODE_ID", 0); 1461955f3c33SDaniel Stone if (!prop) 1462955f3c33SDaniel Stone return -ENOMEM; 1463955f3c33SDaniel Stone dev->mode_config.prop_mode_id = prop; 1464955f3c33SDaniel Stone 14659922ab5aSRob Clark return 0; 14669922ab5aSRob Clark } 14679922ab5aSRob Clark 1468f453ba04SDave Airlie /** 1469f453ba04SDave Airlie * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 1470f453ba04SDave Airlie * @dev: DRM device 1471f453ba04SDave Airlie * 1472f453ba04SDave Airlie * Called by a driver the first time a DVI-I connector is made. 1473f453ba04SDave Airlie */ 1474f453ba04SDave Airlie int drm_mode_create_dvi_i_properties(struct drm_device *dev) 1475f453ba04SDave Airlie { 1476f453ba04SDave Airlie struct drm_property *dvi_i_selector; 1477f453ba04SDave Airlie struct drm_property *dvi_i_subconnector; 1478f453ba04SDave Airlie 1479f453ba04SDave Airlie if (dev->mode_config.dvi_i_select_subconnector_property) 1480f453ba04SDave Airlie return 0; 1481f453ba04SDave Airlie 1482f453ba04SDave Airlie dvi_i_selector = 14834a67d391SSascha Hauer drm_property_create_enum(dev, 0, 1484f453ba04SDave Airlie "select subconnector", 14854a67d391SSascha Hauer drm_dvi_i_select_enum_list, 1486f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_select_enum_list)); 1487f453ba04SDave Airlie dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 1488f453ba04SDave Airlie 14894a67d391SSascha Hauer dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1490f453ba04SDave Airlie "subconnector", 14914a67d391SSascha Hauer drm_dvi_i_subconnector_enum_list, 1492f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 1493f453ba04SDave Airlie dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 1494f453ba04SDave Airlie 1495f453ba04SDave Airlie return 0; 1496f453ba04SDave Airlie } 1497f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 1498f453ba04SDave Airlie 1499f453ba04SDave Airlie /** 1500f453ba04SDave Airlie * drm_create_tv_properties - create TV specific connector properties 1501f453ba04SDave Airlie * @dev: DRM device 1502f453ba04SDave Airlie * @num_modes: number of different TV formats (modes) supported 1503f453ba04SDave Airlie * @modes: array of pointers to strings containing name of each format 1504f453ba04SDave Airlie * 1505f453ba04SDave Airlie * Called by a driver's TV initialization routine, this function creates 1506f453ba04SDave Airlie * the TV specific connector properties for a given device. Caller is 1507f453ba04SDave Airlie * responsible for allocating a list of format names and passing them to 1508f453ba04SDave Airlie * this routine. 1509f453ba04SDave Airlie */ 15102f763312SThierry Reding int drm_mode_create_tv_properties(struct drm_device *dev, 15112f763312SThierry Reding unsigned int num_modes, 1512f453ba04SDave Airlie char *modes[]) 1513f453ba04SDave Airlie { 1514f453ba04SDave Airlie struct drm_property *tv_selector; 1515f453ba04SDave Airlie struct drm_property *tv_subconnector; 15162f763312SThierry Reding unsigned int i; 1517f453ba04SDave Airlie 1518f453ba04SDave Airlie if (dev->mode_config.tv_select_subconnector_property) 1519f453ba04SDave Airlie return 0; 1520f453ba04SDave Airlie 1521f453ba04SDave Airlie /* 1522f453ba04SDave Airlie * Basic connector properties 1523f453ba04SDave Airlie */ 15244a67d391SSascha Hauer tv_selector = drm_property_create_enum(dev, 0, 1525f453ba04SDave Airlie "select subconnector", 15264a67d391SSascha Hauer drm_tv_select_enum_list, 1527f453ba04SDave Airlie ARRAY_SIZE(drm_tv_select_enum_list)); 1528f453ba04SDave Airlie dev->mode_config.tv_select_subconnector_property = tv_selector; 1529f453ba04SDave Airlie 1530f453ba04SDave Airlie tv_subconnector = 15314a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 15324a67d391SSascha Hauer "subconnector", 15334a67d391SSascha Hauer drm_tv_subconnector_enum_list, 1534f453ba04SDave Airlie ARRAY_SIZE(drm_tv_subconnector_enum_list)); 1535f453ba04SDave Airlie dev->mode_config.tv_subconnector_property = tv_subconnector; 1536f453ba04SDave Airlie 1537f453ba04SDave Airlie /* 1538f453ba04SDave Airlie * Other, TV specific properties: margins & TV modes. 1539f453ba04SDave Airlie */ 1540f453ba04SDave Airlie dev->mode_config.tv_left_margin_property = 1541d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "left margin", 0, 100); 1542f453ba04SDave Airlie 1543f453ba04SDave Airlie dev->mode_config.tv_right_margin_property = 1544d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "right margin", 0, 100); 1545f453ba04SDave Airlie 1546f453ba04SDave Airlie dev->mode_config.tv_top_margin_property = 1547d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "top margin", 0, 100); 1548f453ba04SDave Airlie 1549f453ba04SDave Airlie dev->mode_config.tv_bottom_margin_property = 1550d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "bottom margin", 0, 100); 1551f453ba04SDave Airlie 1552f453ba04SDave Airlie dev->mode_config.tv_mode_property = 1553f453ba04SDave Airlie drm_property_create(dev, DRM_MODE_PROP_ENUM, 1554f453ba04SDave Airlie "mode", num_modes); 1555f453ba04SDave Airlie for (i = 0; i < num_modes; i++) 1556f453ba04SDave Airlie drm_property_add_enum(dev->mode_config.tv_mode_property, i, 1557f453ba04SDave Airlie i, modes[i]); 1558f453ba04SDave Airlie 1559b6b7902eSFrancisco Jerez dev->mode_config.tv_brightness_property = 1560d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "brightness", 0, 100); 1561b6b7902eSFrancisco Jerez 1562b6b7902eSFrancisco Jerez dev->mode_config.tv_contrast_property = 1563d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "contrast", 0, 100); 1564b6b7902eSFrancisco Jerez 1565b6b7902eSFrancisco Jerez dev->mode_config.tv_flicker_reduction_property = 1566d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 1567b6b7902eSFrancisco Jerez 1568a75f0236SFrancisco Jerez dev->mode_config.tv_overscan_property = 1569d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "overscan", 0, 100); 1570a75f0236SFrancisco Jerez 1571a75f0236SFrancisco Jerez dev->mode_config.tv_saturation_property = 1572d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "saturation", 0, 100); 1573a75f0236SFrancisco Jerez 1574a75f0236SFrancisco Jerez dev->mode_config.tv_hue_property = 1575d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "hue", 0, 100); 1576a75f0236SFrancisco Jerez 1577f453ba04SDave Airlie return 0; 1578f453ba04SDave Airlie } 1579f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_tv_properties); 1580f453ba04SDave Airlie 1581f453ba04SDave Airlie /** 1582f453ba04SDave Airlie * drm_mode_create_scaling_mode_property - create scaling mode property 1583f453ba04SDave Airlie * @dev: DRM device 1584f453ba04SDave Airlie * 1585f453ba04SDave Airlie * Called by a driver the first time it's needed, must be attached to desired 1586f453ba04SDave Airlie * connectors. 1587f453ba04SDave Airlie */ 1588f453ba04SDave Airlie int drm_mode_create_scaling_mode_property(struct drm_device *dev) 1589f453ba04SDave Airlie { 1590f453ba04SDave Airlie struct drm_property *scaling_mode; 1591f453ba04SDave Airlie 1592f453ba04SDave Airlie if (dev->mode_config.scaling_mode_property) 1593f453ba04SDave Airlie return 0; 1594f453ba04SDave Airlie 1595f453ba04SDave Airlie scaling_mode = 15964a67d391SSascha Hauer drm_property_create_enum(dev, 0, "scaling mode", 15974a67d391SSascha Hauer drm_scaling_mode_enum_list, 1598f453ba04SDave Airlie ARRAY_SIZE(drm_scaling_mode_enum_list)); 1599f453ba04SDave Airlie 1600f453ba04SDave Airlie dev->mode_config.scaling_mode_property = scaling_mode; 1601f453ba04SDave Airlie 1602f453ba04SDave Airlie return 0; 1603f453ba04SDave Airlie } 1604f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 1605f453ba04SDave Airlie 1606f453ba04SDave Airlie /** 1607ff587e45SVandana Kannan * drm_mode_create_aspect_ratio_property - create aspect ratio property 1608ff587e45SVandana Kannan * @dev: DRM device 1609ff587e45SVandana Kannan * 1610ff587e45SVandana Kannan * Called by a driver the first time it's needed, must be attached to desired 1611ff587e45SVandana Kannan * connectors. 1612ff587e45SVandana Kannan * 1613ff587e45SVandana Kannan * Returns: 16141a498633SDaniel Vetter * Zero on success, negative errno on failure. 1615ff587e45SVandana Kannan */ 1616ff587e45SVandana Kannan int drm_mode_create_aspect_ratio_property(struct drm_device *dev) 1617ff587e45SVandana Kannan { 1618ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property) 1619ff587e45SVandana Kannan return 0; 1620ff587e45SVandana Kannan 1621ff587e45SVandana Kannan dev->mode_config.aspect_ratio_property = 1622ff587e45SVandana Kannan drm_property_create_enum(dev, 0, "aspect ratio", 1623ff587e45SVandana Kannan drm_aspect_ratio_enum_list, 1624ff587e45SVandana Kannan ARRAY_SIZE(drm_aspect_ratio_enum_list)); 1625ff587e45SVandana Kannan 1626ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property == NULL) 1627ff587e45SVandana Kannan return -ENOMEM; 1628ff587e45SVandana Kannan 1629ff587e45SVandana Kannan return 0; 1630ff587e45SVandana Kannan } 1631ff587e45SVandana Kannan EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); 1632ff587e45SVandana Kannan 1633ff587e45SVandana Kannan /** 1634884840aaSJakob Bornecrantz * drm_mode_create_dirty_property - create dirty property 1635884840aaSJakob Bornecrantz * @dev: DRM device 1636884840aaSJakob Bornecrantz * 1637884840aaSJakob Bornecrantz * Called by a driver the first time it's needed, must be attached to desired 1638884840aaSJakob Bornecrantz * connectors. 1639884840aaSJakob Bornecrantz */ 1640884840aaSJakob Bornecrantz int drm_mode_create_dirty_info_property(struct drm_device *dev) 1641884840aaSJakob Bornecrantz { 1642884840aaSJakob Bornecrantz struct drm_property *dirty_info; 1643884840aaSJakob Bornecrantz 1644884840aaSJakob Bornecrantz if (dev->mode_config.dirty_info_property) 1645884840aaSJakob Bornecrantz return 0; 1646884840aaSJakob Bornecrantz 1647884840aaSJakob Bornecrantz dirty_info = 16484a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1649884840aaSJakob Bornecrantz "dirty", 16504a67d391SSascha Hauer drm_dirty_info_enum_list, 1651884840aaSJakob Bornecrantz ARRAY_SIZE(drm_dirty_info_enum_list)); 1652884840aaSJakob Bornecrantz dev->mode_config.dirty_info_property = dirty_info; 1653884840aaSJakob Bornecrantz 1654884840aaSJakob Bornecrantz return 0; 1655884840aaSJakob Bornecrantz } 1656884840aaSJakob Bornecrantz EXPORT_SYMBOL(drm_mode_create_dirty_info_property); 1657884840aaSJakob Bornecrantz 16585bb2bbf5SDave Airlie /** 16595bb2bbf5SDave Airlie * drm_mode_create_suggested_offset_properties - create suggests offset properties 16605bb2bbf5SDave Airlie * @dev: DRM device 16615bb2bbf5SDave Airlie * 16625bb2bbf5SDave Airlie * Create the the suggested x/y offset property for connectors. 16635bb2bbf5SDave Airlie */ 16645bb2bbf5SDave Airlie int drm_mode_create_suggested_offset_properties(struct drm_device *dev) 16655bb2bbf5SDave Airlie { 16665bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) 16675bb2bbf5SDave Airlie return 0; 16685bb2bbf5SDave Airlie 16695bb2bbf5SDave Airlie dev->mode_config.suggested_x_property = 16705bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); 16715bb2bbf5SDave Airlie 16725bb2bbf5SDave Airlie dev->mode_config.suggested_y_property = 16735bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); 16745bb2bbf5SDave Airlie 16755bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property == NULL || 16765bb2bbf5SDave Airlie dev->mode_config.suggested_y_property == NULL) 16775bb2bbf5SDave Airlie return -ENOMEM; 16785bb2bbf5SDave Airlie return 0; 16795bb2bbf5SDave Airlie } 16805bb2bbf5SDave Airlie EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); 16815bb2bbf5SDave Airlie 1682f453ba04SDave Airlie /** 1683f453ba04SDave Airlie * drm_mode_getresources - get graphics configuration 1684065a50edSDaniel Vetter * @dev: drm device for the ioctl 1685065a50edSDaniel Vetter * @data: data pointer for the ioctl 1686065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1687f453ba04SDave Airlie * 1688f453ba04SDave Airlie * Construct a set of configuration description structures and return 1689f453ba04SDave Airlie * them to the user, including CRTC, connector and framebuffer configuration. 1690f453ba04SDave Airlie * 1691f453ba04SDave Airlie * Called by the user via ioctl. 1692f453ba04SDave Airlie * 1693c8e32cc1SDaniel Vetter * Returns: 16941a498633SDaniel Vetter * Zero on success, negative errno on failure. 1695f453ba04SDave Airlie */ 1696f453ba04SDave Airlie int drm_mode_getresources(struct drm_device *dev, void *data, 1697f453ba04SDave Airlie struct drm_file *file_priv) 1698f453ba04SDave Airlie { 1699f453ba04SDave Airlie struct drm_mode_card_res *card_res = data; 1700f453ba04SDave Airlie struct list_head *lh; 1701f453ba04SDave Airlie struct drm_framebuffer *fb; 1702f453ba04SDave Airlie struct drm_connector *connector; 1703f453ba04SDave Airlie struct drm_crtc *crtc; 1704f453ba04SDave Airlie struct drm_encoder *encoder; 1705f453ba04SDave Airlie int ret = 0; 1706f453ba04SDave Airlie int connector_count = 0; 1707f453ba04SDave Airlie int crtc_count = 0; 1708f453ba04SDave Airlie int fb_count = 0; 1709f453ba04SDave Airlie int encoder_count = 0; 17109c7060f7SDaniel Vetter int copied = 0; 1711f453ba04SDave Airlie uint32_t __user *fb_id; 1712f453ba04SDave Airlie uint32_t __user *crtc_id; 1713f453ba04SDave Airlie uint32_t __user *connector_id; 1714f453ba04SDave Airlie uint32_t __user *encoder_id; 1715f453ba04SDave Airlie 1716fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1717fb3b06c8SDave Airlie return -EINVAL; 1718fb3b06c8SDave Airlie 1719f453ba04SDave Airlie 17204b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 1721f453ba04SDave Airlie /* 1722f453ba04SDave Airlie * For the non-control nodes we need to limit the list of resources 1723f453ba04SDave Airlie * by IDs in the group list for this node 1724f453ba04SDave Airlie */ 1725f453ba04SDave Airlie list_for_each(lh, &file_priv->fbs) 1726f453ba04SDave Airlie fb_count++; 1727f453ba04SDave Airlie 17284b096ac1SDaniel Vetter /* handle this in 4 parts */ 17294b096ac1SDaniel Vetter /* FBs */ 17304b096ac1SDaniel Vetter if (card_res->count_fbs >= fb_count) { 17314b096ac1SDaniel Vetter copied = 0; 17324b096ac1SDaniel Vetter fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; 17334b096ac1SDaniel Vetter list_for_each_entry(fb, &file_priv->fbs, filp_head) { 17344b096ac1SDaniel Vetter if (put_user(fb->base.id, fb_id + copied)) { 17354b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 17364b096ac1SDaniel Vetter return -EFAULT; 17374b096ac1SDaniel Vetter } 17384b096ac1SDaniel Vetter copied++; 17394b096ac1SDaniel Vetter } 17404b096ac1SDaniel Vetter } 17414b096ac1SDaniel Vetter card_res->count_fbs = fb_count; 17424b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 17434b096ac1SDaniel Vetter 1744fcf93f69SDaniel Vetter /* mode_config.mutex protects the connector list against e.g. DP MST 1745fcf93f69SDaniel Vetter * connector hot-adding. CRTC/Plane lists are invariant. */ 1746fcf93f69SDaniel Vetter mutex_lock(&dev->mode_config.mutex); 1747e4f62546SDaniel Vetter drm_for_each_crtc(crtc, dev) 1748f453ba04SDave Airlie crtc_count++; 1749f453ba04SDave Airlie 17509a9f5ce8SDaniel Vetter drm_for_each_connector(connector, dev) 1751f453ba04SDave Airlie connector_count++; 1752f453ba04SDave Airlie 1753e4f62546SDaniel Vetter drm_for_each_encoder(encoder, dev) 1754f453ba04SDave Airlie encoder_count++; 1755f453ba04SDave Airlie 1756f453ba04SDave Airlie card_res->max_height = dev->mode_config.max_height; 1757f453ba04SDave Airlie card_res->min_height = dev->mode_config.min_height; 1758f453ba04SDave Airlie card_res->max_width = dev->mode_config.max_width; 1759f453ba04SDave Airlie card_res->min_width = dev->mode_config.min_width; 1760f453ba04SDave Airlie 1761f453ba04SDave Airlie /* CRTCs */ 1762f453ba04SDave Airlie if (card_res->count_crtcs >= crtc_count) { 1763f453ba04SDave Airlie copied = 0; 1764f453ba04SDave Airlie crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; 17656295d607SDaniel Vetter drm_for_each_crtc(crtc, dev) { 17669440106bSJerome Glisse DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1767f453ba04SDave Airlie if (put_user(crtc->base.id, crtc_id + copied)) { 1768f453ba04SDave Airlie ret = -EFAULT; 1769f453ba04SDave Airlie goto out; 1770f453ba04SDave Airlie } 1771f453ba04SDave Airlie copied++; 1772f453ba04SDave Airlie } 1773f453ba04SDave Airlie } 1774f453ba04SDave Airlie card_res->count_crtcs = crtc_count; 1775f453ba04SDave Airlie 1776f453ba04SDave Airlie /* Encoders */ 1777f453ba04SDave Airlie if (card_res->count_encoders >= encoder_count) { 1778f453ba04SDave Airlie copied = 0; 1779f453ba04SDave Airlie encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; 17806295d607SDaniel Vetter drm_for_each_encoder(encoder, dev) { 17819440106bSJerome Glisse DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, 178283a8cfd3SJani Nikula encoder->name); 1783f453ba04SDave Airlie if (put_user(encoder->base.id, encoder_id + 1784f453ba04SDave Airlie copied)) { 1785f453ba04SDave Airlie ret = -EFAULT; 1786f453ba04SDave Airlie goto out; 1787f453ba04SDave Airlie } 1788f453ba04SDave Airlie copied++; 1789f453ba04SDave Airlie } 1790f453ba04SDave Airlie } 1791f453ba04SDave Airlie card_res->count_encoders = encoder_count; 1792f453ba04SDave Airlie 1793f453ba04SDave Airlie /* Connectors */ 1794f453ba04SDave Airlie if (card_res->count_connectors >= connector_count) { 1795f453ba04SDave Airlie copied = 0; 1796f453ba04SDave Airlie connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; 17976295d607SDaniel Vetter drm_for_each_connector(connector, dev) { 17989440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 17999440106bSJerome Glisse connector->base.id, 180025933820SJani Nikula connector->name); 1801f453ba04SDave Airlie if (put_user(connector->base.id, 1802f453ba04SDave Airlie connector_id + copied)) { 1803f453ba04SDave Airlie ret = -EFAULT; 1804f453ba04SDave Airlie goto out; 1805f453ba04SDave Airlie } 1806f453ba04SDave Airlie copied++; 1807f453ba04SDave Airlie } 1808f453ba04SDave Airlie } 1809f453ba04SDave Airlie card_res->count_connectors = connector_count; 1810f453ba04SDave Airlie 18119440106bSJerome Glisse DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, 1812f453ba04SDave Airlie card_res->count_connectors, card_res->count_encoders); 1813f453ba04SDave Airlie 1814f453ba04SDave Airlie out: 1815fcf93f69SDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 1816f453ba04SDave Airlie return ret; 1817f453ba04SDave Airlie } 1818f453ba04SDave Airlie 1819f453ba04SDave Airlie /** 1820f453ba04SDave Airlie * drm_mode_getcrtc - get CRTC configuration 1821065a50edSDaniel Vetter * @dev: drm device for the ioctl 1822065a50edSDaniel Vetter * @data: data pointer for the ioctl 1823065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1824f453ba04SDave Airlie * 1825f453ba04SDave Airlie * Construct a CRTC configuration structure to return to the user. 1826f453ba04SDave Airlie * 1827f453ba04SDave Airlie * Called by the user via ioctl. 1828f453ba04SDave Airlie * 1829c8e32cc1SDaniel Vetter * Returns: 18301a498633SDaniel Vetter * Zero on success, negative errno on failure. 1831f453ba04SDave Airlie */ 1832f453ba04SDave Airlie int drm_mode_getcrtc(struct drm_device *dev, 1833f453ba04SDave Airlie void *data, struct drm_file *file_priv) 1834f453ba04SDave Airlie { 1835f453ba04SDave Airlie struct drm_mode_crtc *crtc_resp = data; 1836f453ba04SDave Airlie struct drm_crtc *crtc; 1837f453ba04SDave Airlie 1838fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1839fb3b06c8SDave Airlie return -EINVAL; 1840fb3b06c8SDave Airlie 1841a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_resp->crtc_id); 1842fcf93f69SDaniel Vetter if (!crtc) 1843fcf93f69SDaniel Vetter return -ENOENT; 1844f453ba04SDave Airlie 1845fcf93f69SDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 1846f453ba04SDave Airlie crtc_resp->gamma_size = crtc->gamma_size; 1847f4510a27SMatt Roper if (crtc->primary->fb) 1848f4510a27SMatt Roper crtc_resp->fb_id = crtc->primary->fb->base.id; 1849f453ba04SDave Airlie else 1850f453ba04SDave Airlie crtc_resp->fb_id = 0; 1851f453ba04SDave Airlie 185231c946e8SDaniel Vetter if (crtc->state) { 185331c946e8SDaniel Vetter crtc_resp->x = crtc->primary->state->src_x >> 16; 185431c946e8SDaniel Vetter crtc_resp->y = crtc->primary->state->src_y >> 16; 185531c946e8SDaniel Vetter if (crtc->state->enable) { 1856934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); 185731c946e8SDaniel Vetter crtc_resp->mode_valid = 1; 1858f453ba04SDave Airlie 185931c946e8SDaniel Vetter } else { 186031c946e8SDaniel Vetter crtc_resp->mode_valid = 0; 186131c946e8SDaniel Vetter } 186231c946e8SDaniel Vetter } else { 186331c946e8SDaniel Vetter crtc_resp->x = crtc->x; 186431c946e8SDaniel Vetter crtc_resp->y = crtc->y; 186531c946e8SDaniel Vetter if (crtc->enabled) { 1866934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); 1867f453ba04SDave Airlie crtc_resp->mode_valid = 1; 1868f453ba04SDave Airlie 1869f453ba04SDave Airlie } else { 1870f453ba04SDave Airlie crtc_resp->mode_valid = 0; 1871f453ba04SDave Airlie } 187231c946e8SDaniel Vetter } 1873fcf93f69SDaniel Vetter drm_modeset_unlock_crtc(crtc); 1874f453ba04SDave Airlie 1875baf698b0SDaniel Vetter return 0; 1876f453ba04SDave Airlie } 1877f453ba04SDave Airlie 187861d8e328SDamien Lespiau static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, 187961d8e328SDamien Lespiau const struct drm_file *file_priv) 188061d8e328SDamien Lespiau { 188161d8e328SDamien Lespiau /* 188261d8e328SDamien Lespiau * If user-space hasn't configured the driver to expose the stereo 3D 188361d8e328SDamien Lespiau * modes, don't expose them. 188461d8e328SDamien Lespiau */ 188561d8e328SDamien Lespiau if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) 188661d8e328SDamien Lespiau return false; 188761d8e328SDamien Lespiau 188861d8e328SDamien Lespiau return true; 188961d8e328SDamien Lespiau } 189061d8e328SDamien Lespiau 1891abd69c55SDaniel Vetter static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) 1892abd69c55SDaniel Vetter { 1893abd69c55SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 1894abd69c55SDaniel Vetter * protected by modeset locks, so check those first. */ 1895abd69c55SDaniel Vetter if (connector->state) 1896abd69c55SDaniel Vetter return connector->state->best_encoder; 1897abd69c55SDaniel Vetter return connector->encoder; 1898abd69c55SDaniel Vetter } 1899abd69c55SDaniel Vetter 190095cbf110SRob Clark /* helper for getconnector and getproperties ioctls */ 190188a48e29SRob Clark static int get_properties(struct drm_mode_object *obj, bool atomic, 190295cbf110SRob Clark uint32_t __user *prop_ptr, uint64_t __user *prop_values, 190395cbf110SRob Clark uint32_t *arg_count_props) 190495cbf110SRob Clark { 190588a48e29SRob Clark int props_count; 190688a48e29SRob Clark int i, ret, copied; 190788a48e29SRob Clark 190888a48e29SRob Clark props_count = obj->properties->count; 190988a48e29SRob Clark if (!atomic) 191088a48e29SRob Clark props_count -= obj->properties->atomic_count; 191195cbf110SRob Clark 191295cbf110SRob Clark if ((*arg_count_props >= props_count) && props_count) { 191388a48e29SRob Clark for (i = 0, copied = 0; copied < props_count; i++) { 191495cbf110SRob Clark struct drm_property *prop = obj->properties->properties[i]; 191595cbf110SRob Clark uint64_t val; 191695cbf110SRob Clark 191788a48e29SRob Clark if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) 191888a48e29SRob Clark continue; 191988a48e29SRob Clark 192095cbf110SRob Clark ret = drm_object_property_get_value(obj, prop, &val); 192195cbf110SRob Clark if (ret) 192295cbf110SRob Clark return ret; 192395cbf110SRob Clark 192495cbf110SRob Clark if (put_user(prop->base.id, prop_ptr + copied)) 192595cbf110SRob Clark return -EFAULT; 192695cbf110SRob Clark 192795cbf110SRob Clark if (put_user(val, prop_values + copied)) 192895cbf110SRob Clark return -EFAULT; 192995cbf110SRob Clark 193095cbf110SRob Clark copied++; 193195cbf110SRob Clark } 193295cbf110SRob Clark } 193395cbf110SRob Clark *arg_count_props = props_count; 193495cbf110SRob Clark 193595cbf110SRob Clark return 0; 193695cbf110SRob Clark } 193795cbf110SRob Clark 1938f453ba04SDave Airlie /** 1939f453ba04SDave Airlie * drm_mode_getconnector - get connector configuration 1940065a50edSDaniel Vetter * @dev: drm device for the ioctl 1941065a50edSDaniel Vetter * @data: data pointer for the ioctl 1942065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1943f453ba04SDave Airlie * 1944f453ba04SDave Airlie * Construct a connector configuration structure to return to the user. 1945f453ba04SDave Airlie * 1946f453ba04SDave Airlie * Called by the user via ioctl. 1947f453ba04SDave Airlie * 1948c8e32cc1SDaniel Vetter * Returns: 19491a498633SDaniel Vetter * Zero on success, negative errno on failure. 1950f453ba04SDave Airlie */ 1951f453ba04SDave Airlie int drm_mode_getconnector(struct drm_device *dev, void *data, 1952f453ba04SDave Airlie struct drm_file *file_priv) 1953f453ba04SDave Airlie { 1954f453ba04SDave Airlie struct drm_mode_get_connector *out_resp = data; 1955f453ba04SDave Airlie struct drm_connector *connector; 1956abd69c55SDaniel Vetter struct drm_encoder *encoder; 1957f453ba04SDave Airlie struct drm_display_mode *mode; 1958f453ba04SDave Airlie int mode_count = 0; 1959f453ba04SDave Airlie int encoders_count = 0; 1960f453ba04SDave Airlie int ret = 0; 1961f453ba04SDave Airlie int copied = 0; 1962f453ba04SDave Airlie int i; 1963f453ba04SDave Airlie struct drm_mode_modeinfo u_mode; 1964f453ba04SDave Airlie struct drm_mode_modeinfo __user *mode_ptr; 1965f453ba04SDave Airlie uint32_t __user *encoder_ptr; 1966f453ba04SDave Airlie 1967fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1968fb3b06c8SDave Airlie return -EINVAL; 1969fb3b06c8SDave Airlie 1970f453ba04SDave Airlie memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); 1971f453ba04SDave Airlie 19729440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); 1973f453ba04SDave Airlie 19747b24056bSDaniel Vetter mutex_lock(&dev->mode_config.mutex); 1975f453ba04SDave Airlie 1976a2b34e22SRob Clark connector = drm_connector_find(dev, out_resp->connector_id); 1977a2b34e22SRob Clark if (!connector) { 1978f27657f2SVille Syrjälä ret = -ENOENT; 197904bdf441STommi Rantala goto out_unlock; 1980f453ba04SDave Airlie } 1981f453ba04SDave Airlie 198201073b08SThierry Reding for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) 198301073b08SThierry Reding if (connector->encoder_ids[i] != 0) 1984f453ba04SDave Airlie encoders_count++; 1985f453ba04SDave Airlie 1986f453ba04SDave Airlie if (out_resp->count_modes == 0) { 1987f453ba04SDave Airlie connector->funcs->fill_modes(connector, 1988f453ba04SDave Airlie dev->mode_config.max_width, 1989f453ba04SDave Airlie dev->mode_config.max_height); 1990f453ba04SDave Airlie } 1991f453ba04SDave Airlie 1992f453ba04SDave Airlie /* delayed so we get modes regardless of pre-fill_modes state */ 1993f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) 199461d8e328SDamien Lespiau if (drm_mode_expose_to_userspace(mode, file_priv)) 1995f453ba04SDave Airlie mode_count++; 1996f453ba04SDave Airlie 1997f453ba04SDave Airlie out_resp->connector_id = connector->base.id; 1998f453ba04SDave Airlie out_resp->connector_type = connector->connector_type; 1999f453ba04SDave Airlie out_resp->connector_type_id = connector->connector_type_id; 2000f453ba04SDave Airlie out_resp->mm_width = connector->display_info.width_mm; 2001f453ba04SDave Airlie out_resp->mm_height = connector->display_info.height_mm; 2002f453ba04SDave Airlie out_resp->subpixel = connector->display_info.subpixel_order; 2003f453ba04SDave Airlie out_resp->connection = connector->status; 20042caa80e7SDaniel Vetter 20052caa80e7SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2006abd69c55SDaniel Vetter encoder = drm_connector_get_encoder(connector); 2007abd69c55SDaniel Vetter if (encoder) 2008abd69c55SDaniel Vetter out_resp->encoder_id = encoder->base.id; 2009f453ba04SDave Airlie else 2010f453ba04SDave Airlie out_resp->encoder_id = 0; 2011f453ba04SDave Airlie 2012f453ba04SDave Airlie /* 2013f453ba04SDave Airlie * This ioctl is called twice, once to determine how much space is 2014f453ba04SDave Airlie * needed, and the 2nd time to fill it. 2015f453ba04SDave Airlie */ 2016f453ba04SDave Airlie if ((out_resp->count_modes >= mode_count) && mode_count) { 2017f453ba04SDave Airlie copied = 0; 201881f6c7f8SVille Syrjälä mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 2019f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) { 202061d8e328SDamien Lespiau if (!drm_mode_expose_to_userspace(mode, file_priv)) 202161d8e328SDamien Lespiau continue; 202261d8e328SDamien Lespiau 2023934a8a89SDaniel Stone drm_mode_convert_to_umode(&u_mode, mode); 2024f453ba04SDave Airlie if (copy_to_user(mode_ptr + copied, 2025f453ba04SDave Airlie &u_mode, sizeof(u_mode))) { 2026f453ba04SDave Airlie ret = -EFAULT; 2027f453ba04SDave Airlie goto out; 2028f453ba04SDave Airlie } 2029f453ba04SDave Airlie copied++; 2030f453ba04SDave Airlie } 2031f453ba04SDave Airlie } 2032f453ba04SDave Airlie out_resp->count_modes = mode_count; 2033f453ba04SDave Airlie 203488a48e29SRob Clark ret = get_properties(&connector->base, file_priv->atomic, 203595cbf110SRob Clark (uint32_t __user *)(unsigned long)(out_resp->props_ptr), 203695cbf110SRob Clark (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), 203795cbf110SRob Clark &out_resp->count_props); 203822b8b13bSRob Clark if (ret) 2039f453ba04SDave Airlie goto out; 2040f453ba04SDave Airlie 2041f453ba04SDave Airlie if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 2042f453ba04SDave Airlie copied = 0; 204381f6c7f8SVille Syrjälä encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 2044f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 2045f453ba04SDave Airlie if (connector->encoder_ids[i] != 0) { 2046f453ba04SDave Airlie if (put_user(connector->encoder_ids[i], 2047f453ba04SDave Airlie encoder_ptr + copied)) { 2048f453ba04SDave Airlie ret = -EFAULT; 2049f453ba04SDave Airlie goto out; 2050f453ba04SDave Airlie } 2051f453ba04SDave Airlie copied++; 2052f453ba04SDave Airlie } 2053f453ba04SDave Airlie } 2054f453ba04SDave Airlie } 2055f453ba04SDave Airlie out_resp->count_encoders = encoders_count; 2056f453ba04SDave Airlie 2057f453ba04SDave Airlie out: 2058ccfc0865SRob Clark drm_modeset_unlock(&dev->mode_config.connection_mutex); 205904bdf441STommi Rantala 206004bdf441STommi Rantala out_unlock: 20617b24056bSDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 20627b24056bSDaniel Vetter 2063f453ba04SDave Airlie return ret; 2064f453ba04SDave Airlie } 2065f453ba04SDave Airlie 2066abd69c55SDaniel Vetter static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) 2067abd69c55SDaniel Vetter { 2068abd69c55SDaniel Vetter struct drm_connector *connector; 2069abd69c55SDaniel Vetter struct drm_device *dev = encoder->dev; 2070abd69c55SDaniel Vetter bool uses_atomic = false; 2071abd69c55SDaniel Vetter 2072abd69c55SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 2073abd69c55SDaniel Vetter * protected by modeset locks, so check those first. */ 20746295d607SDaniel Vetter drm_for_each_connector(connector, dev) { 2075abd69c55SDaniel Vetter if (!connector->state) 2076abd69c55SDaniel Vetter continue; 2077abd69c55SDaniel Vetter 2078abd69c55SDaniel Vetter uses_atomic = true; 2079abd69c55SDaniel Vetter 2080abd69c55SDaniel Vetter if (connector->state->best_encoder != encoder) 2081abd69c55SDaniel Vetter continue; 2082abd69c55SDaniel Vetter 2083abd69c55SDaniel Vetter return connector->state->crtc; 2084abd69c55SDaniel Vetter } 2085abd69c55SDaniel Vetter 2086abd69c55SDaniel Vetter /* Don't return stale data (e.g. pending async disable). */ 2087abd69c55SDaniel Vetter if (uses_atomic) 2088abd69c55SDaniel Vetter return NULL; 2089abd69c55SDaniel Vetter 2090abd69c55SDaniel Vetter return encoder->crtc; 2091abd69c55SDaniel Vetter } 2092abd69c55SDaniel Vetter 2093c8e32cc1SDaniel Vetter /** 2094c8e32cc1SDaniel Vetter * drm_mode_getencoder - get encoder configuration 2095c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2096c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2097c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2098c8e32cc1SDaniel Vetter * 2099c8e32cc1SDaniel Vetter * Construct a encoder configuration structure to return to the user. 2100c8e32cc1SDaniel Vetter * 2101c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2102c8e32cc1SDaniel Vetter * 2103c8e32cc1SDaniel Vetter * Returns: 21041a498633SDaniel Vetter * Zero on success, negative errno on failure. 2105c8e32cc1SDaniel Vetter */ 2106f453ba04SDave Airlie int drm_mode_getencoder(struct drm_device *dev, void *data, 2107f453ba04SDave Airlie struct drm_file *file_priv) 2108f453ba04SDave Airlie { 2109f453ba04SDave Airlie struct drm_mode_get_encoder *enc_resp = data; 2110f453ba04SDave Airlie struct drm_encoder *encoder; 2111abd69c55SDaniel Vetter struct drm_crtc *crtc; 2112f453ba04SDave Airlie 2113fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2114fb3b06c8SDave Airlie return -EINVAL; 2115fb3b06c8SDave Airlie 2116a2b34e22SRob Clark encoder = drm_encoder_find(dev, enc_resp->encoder_id); 2117fcf93f69SDaniel Vetter if (!encoder) 2118fcf93f69SDaniel Vetter return -ENOENT; 2119f453ba04SDave Airlie 2120fcf93f69SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2121abd69c55SDaniel Vetter crtc = drm_encoder_get_crtc(encoder); 2122abd69c55SDaniel Vetter if (crtc) 2123abd69c55SDaniel Vetter enc_resp->crtc_id = crtc->base.id; 2124f453ba04SDave Airlie else 2125f453ba04SDave Airlie enc_resp->crtc_id = 0; 2126fcf93f69SDaniel Vetter drm_modeset_unlock(&dev->mode_config.connection_mutex); 2127fcf93f69SDaniel Vetter 2128f453ba04SDave Airlie enc_resp->encoder_type = encoder->encoder_type; 2129f453ba04SDave Airlie enc_resp->encoder_id = encoder->base.id; 2130f453ba04SDave Airlie enc_resp->possible_crtcs = encoder->possible_crtcs; 2131f453ba04SDave Airlie enc_resp->possible_clones = encoder->possible_clones; 2132f453ba04SDave Airlie 2133baf698b0SDaniel Vetter return 0; 2134f453ba04SDave Airlie } 2135f453ba04SDave Airlie 2136f453ba04SDave Airlie /** 2137c8e32cc1SDaniel Vetter * drm_mode_getplane_res - enumerate all plane resources 21388cf5c917SJesse Barnes * @dev: DRM device 21398cf5c917SJesse Barnes * @data: ioctl data 21408cf5c917SJesse Barnes * @file_priv: DRM file info 21418cf5c917SJesse Barnes * 2142c8e32cc1SDaniel Vetter * Construct a list of plane ids to return to the user. 2143c8e32cc1SDaniel Vetter * 2144c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2145c8e32cc1SDaniel Vetter * 2146c8e32cc1SDaniel Vetter * Returns: 21471a498633SDaniel Vetter * Zero on success, negative errno on failure. 21488cf5c917SJesse Barnes */ 21498cf5c917SJesse Barnes int drm_mode_getplane_res(struct drm_device *dev, void *data, 21508cf5c917SJesse Barnes struct drm_file *file_priv) 21518cf5c917SJesse Barnes { 21528cf5c917SJesse Barnes struct drm_mode_get_plane_res *plane_resp = data; 21538cf5c917SJesse Barnes struct drm_mode_config *config; 21548cf5c917SJesse Barnes struct drm_plane *plane; 21558cf5c917SJesse Barnes uint32_t __user *plane_ptr; 2156fcf93f69SDaniel Vetter int copied = 0; 2157681e7ec7SMatt Roper unsigned num_planes; 21588cf5c917SJesse Barnes 21598cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 21608cf5c917SJesse Barnes return -EINVAL; 21618cf5c917SJesse Barnes 21628cf5c917SJesse Barnes config = &dev->mode_config; 21638cf5c917SJesse Barnes 2164681e7ec7SMatt Roper if (file_priv->universal_planes) 2165681e7ec7SMatt Roper num_planes = config->num_total_plane; 2166681e7ec7SMatt Roper else 2167681e7ec7SMatt Roper num_planes = config->num_overlay_plane; 2168681e7ec7SMatt Roper 21698cf5c917SJesse Barnes /* 21708cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 21718cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 21728cf5c917SJesse Barnes */ 2173681e7ec7SMatt Roper if (num_planes && 2174681e7ec7SMatt Roper (plane_resp->count_planes >= num_planes)) { 217581f6c7f8SVille Syrjälä plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; 21768cf5c917SJesse Barnes 2177fcf93f69SDaniel Vetter /* Plane lists are invariant, no locking needed. */ 2178e4f62546SDaniel Vetter drm_for_each_plane(plane, dev) { 2179681e7ec7SMatt Roper /* 2180681e7ec7SMatt Roper * Unless userspace set the 'universal planes' 2181681e7ec7SMatt Roper * capability bit, only advertise overlays. 2182681e7ec7SMatt Roper */ 2183681e7ec7SMatt Roper if (plane->type != DRM_PLANE_TYPE_OVERLAY && 2184681e7ec7SMatt Roper !file_priv->universal_planes) 2185e27dde3eSMatt Roper continue; 2186e27dde3eSMatt Roper 2187fcf93f69SDaniel Vetter if (put_user(plane->base.id, plane_ptr + copied)) 2188fcf93f69SDaniel Vetter return -EFAULT; 21898cf5c917SJesse Barnes copied++; 21908cf5c917SJesse Barnes } 21918cf5c917SJesse Barnes } 2192681e7ec7SMatt Roper plane_resp->count_planes = num_planes; 21938cf5c917SJesse Barnes 2194fcf93f69SDaniel Vetter return 0; 21958cf5c917SJesse Barnes } 21968cf5c917SJesse Barnes 21978cf5c917SJesse Barnes /** 2198c8e32cc1SDaniel Vetter * drm_mode_getplane - get plane configuration 21998cf5c917SJesse Barnes * @dev: DRM device 22008cf5c917SJesse Barnes * @data: ioctl data 22018cf5c917SJesse Barnes * @file_priv: DRM file info 22028cf5c917SJesse Barnes * 2203c8e32cc1SDaniel Vetter * Construct a plane configuration structure to return to the user. 2204c8e32cc1SDaniel Vetter * 2205c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2206c8e32cc1SDaniel Vetter * 2207c8e32cc1SDaniel Vetter * Returns: 22081a498633SDaniel Vetter * Zero on success, negative errno on failure. 22098cf5c917SJesse Barnes */ 22108cf5c917SJesse Barnes int drm_mode_getplane(struct drm_device *dev, void *data, 22118cf5c917SJesse Barnes struct drm_file *file_priv) 22128cf5c917SJesse Barnes { 22138cf5c917SJesse Barnes struct drm_mode_get_plane *plane_resp = data; 22148cf5c917SJesse Barnes struct drm_plane *plane; 22158cf5c917SJesse Barnes uint32_t __user *format_ptr; 22168cf5c917SJesse Barnes 22178cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 22188cf5c917SJesse Barnes return -EINVAL; 22198cf5c917SJesse Barnes 2220a2b34e22SRob Clark plane = drm_plane_find(dev, plane_resp->plane_id); 2221fcf93f69SDaniel Vetter if (!plane) 2222fcf93f69SDaniel Vetter return -ENOENT; 22238cf5c917SJesse Barnes 2224fcf93f69SDaniel Vetter drm_modeset_lock(&plane->mutex, NULL); 22258cf5c917SJesse Barnes if (plane->crtc) 22268cf5c917SJesse Barnes plane_resp->crtc_id = plane->crtc->base.id; 22278cf5c917SJesse Barnes else 22288cf5c917SJesse Barnes plane_resp->crtc_id = 0; 22298cf5c917SJesse Barnes 22308cf5c917SJesse Barnes if (plane->fb) 22318cf5c917SJesse Barnes plane_resp->fb_id = plane->fb->base.id; 22328cf5c917SJesse Barnes else 22338cf5c917SJesse Barnes plane_resp->fb_id = 0; 2234fcf93f69SDaniel Vetter drm_modeset_unlock(&plane->mutex); 22358cf5c917SJesse Barnes 22368cf5c917SJesse Barnes plane_resp->plane_id = plane->base.id; 22378cf5c917SJesse Barnes plane_resp->possible_crtcs = plane->possible_crtcs; 2238778ad903SVille Syrjälä plane_resp->gamma_size = 0; 22398cf5c917SJesse Barnes 22408cf5c917SJesse Barnes /* 22418cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 22428cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 22438cf5c917SJesse Barnes */ 22448cf5c917SJesse Barnes if (plane->format_count && 22458cf5c917SJesse Barnes (plane_resp->count_format_types >= plane->format_count)) { 224681f6c7f8SVille Syrjälä format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; 22478cf5c917SJesse Barnes if (copy_to_user(format_ptr, 22488cf5c917SJesse Barnes plane->format_types, 22498cf5c917SJesse Barnes sizeof(uint32_t) * plane->format_count)) { 2250fcf93f69SDaniel Vetter return -EFAULT; 22518cf5c917SJesse Barnes } 22528cf5c917SJesse Barnes } 22538cf5c917SJesse Barnes plane_resp->count_format_types = plane->format_count; 22548cf5c917SJesse Barnes 2255baf698b0SDaniel Vetter return 0; 22568cf5c917SJesse Barnes } 22578cf5c917SJesse Barnes 2258ead8610dSLaurent Pinchart /** 2259ead8610dSLaurent Pinchart * drm_plane_check_pixel_format - Check if the plane supports the pixel format 2260ead8610dSLaurent Pinchart * @plane: plane to check for format support 2261ead8610dSLaurent Pinchart * @format: the pixel format 2262ead8610dSLaurent Pinchart * 2263ead8610dSLaurent Pinchart * Returns: 2264ead8610dSLaurent Pinchart * Zero of @plane has @format in its list of supported pixel formats, -EINVAL 2265ead8610dSLaurent Pinchart * otherwise. 2266ead8610dSLaurent Pinchart */ 2267ead8610dSLaurent Pinchart int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) 2268ead8610dSLaurent Pinchart { 2269ead8610dSLaurent Pinchart unsigned int i; 2270ead8610dSLaurent Pinchart 2271ead8610dSLaurent Pinchart for (i = 0; i < plane->format_count; i++) { 2272ead8610dSLaurent Pinchart if (format == plane->format_types[i]) 2273ead8610dSLaurent Pinchart return 0; 2274ead8610dSLaurent Pinchart } 2275ead8610dSLaurent Pinchart 2276ead8610dSLaurent Pinchart return -EINVAL; 2277ead8610dSLaurent Pinchart } 2278ead8610dSLaurent Pinchart 2279b36552b3SMatt Roper /* 2280b36552b3SMatt Roper * setplane_internal - setplane handler for internal callers 22818cf5c917SJesse Barnes * 2282b36552b3SMatt Roper * Note that we assume an extra reference has already been taken on fb. If the 2283b36552b3SMatt Roper * update fails, this reference will be dropped before return; if it succeeds, 2284b36552b3SMatt Roper * the previous framebuffer (if any) will be unreferenced instead. 2285c8e32cc1SDaniel Vetter * 2286b36552b3SMatt Roper * src_{x,y,w,h} are provided in 16.16 fixed point format 22878cf5c917SJesse Barnes */ 2288f2b50c11SDaniel Vetter static int __setplane_internal(struct drm_plane *plane, 228917cfd91fSChris Wilson struct drm_crtc *crtc, 2290b36552b3SMatt Roper struct drm_framebuffer *fb, 2291b36552b3SMatt Roper int32_t crtc_x, int32_t crtc_y, 2292b36552b3SMatt Roper uint32_t crtc_w, uint32_t crtc_h, 2293b36552b3SMatt Roper /* src_{x,y,w,h} values are 16.16 fixed point */ 2294b36552b3SMatt Roper uint32_t src_x, uint32_t src_y, 2295b36552b3SMatt Roper uint32_t src_w, uint32_t src_h) 22968cf5c917SJesse Barnes { 22978cf5c917SJesse Barnes int ret = 0; 229842ef8789SVille Syrjälä unsigned int fb_width, fb_height; 22998cf5c917SJesse Barnes 23008cf5c917SJesse Barnes /* No fb means shut it down */ 2301b36552b3SMatt Roper if (!fb) { 23023d30a59bSDaniel Vetter plane->old_fb = plane->fb; 2303731cce48SDaniel Vetter ret = plane->funcs->disable_plane(plane); 2304731cce48SDaniel Vetter if (!ret) { 2305e5e3b44cSVille Syrjälä plane->crtc = NULL; 2306e5e3b44cSVille Syrjälä plane->fb = NULL; 2307731cce48SDaniel Vetter } else { 23083d30a59bSDaniel Vetter plane->old_fb = NULL; 2309731cce48SDaniel Vetter } 23108cf5c917SJesse Barnes goto out; 23118cf5c917SJesse Barnes } 23128cf5c917SJesse Barnes 23137f994f3fSMatt Roper /* Check whether this plane is usable on this CRTC */ 23147f994f3fSMatt Roper if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { 23157f994f3fSMatt Roper DRM_DEBUG_KMS("Invalid crtc for plane\n"); 23167f994f3fSMatt Roper ret = -EINVAL; 23177f994f3fSMatt Roper goto out; 23187f994f3fSMatt Roper } 23197f994f3fSMatt Roper 232062443be6SVille Syrjälä /* Check whether this plane supports the fb pixel format. */ 2321ead8610dSLaurent Pinchart ret = drm_plane_check_pixel_format(plane, fb->pixel_format); 2322ead8610dSLaurent Pinchart if (ret) { 23236ba6d03eSVille Syrjälä DRM_DEBUG_KMS("Invalid pixel format %s\n", 23246ba6d03eSVille Syrjälä drm_get_format_name(fb->pixel_format)); 232562443be6SVille Syrjälä goto out; 232662443be6SVille Syrjälä } 232762443be6SVille Syrjälä 23283968be94SMatt Roper /* Give drivers some help against integer overflows */ 23293968be94SMatt Roper if (crtc_w > INT_MAX || 23303968be94SMatt Roper crtc_x > INT_MAX - (int32_t) crtc_w || 23313968be94SMatt Roper crtc_h > INT_MAX || 23323968be94SMatt Roper crtc_y > INT_MAX - (int32_t) crtc_h) { 23333968be94SMatt Roper DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", 23343968be94SMatt Roper crtc_w, crtc_h, crtc_x, crtc_y); 23353968be94SMatt Roper return -ERANGE; 23363968be94SMatt Roper } 23373968be94SMatt Roper 23383968be94SMatt Roper 233942ef8789SVille Syrjälä fb_width = fb->width << 16; 234042ef8789SVille Syrjälä fb_height = fb->height << 16; 234142ef8789SVille Syrjälä 234242ef8789SVille Syrjälä /* Make sure source coordinates are inside the fb. */ 2343b36552b3SMatt Roper if (src_w > fb_width || 2344b36552b3SMatt Roper src_x > fb_width - src_w || 2345b36552b3SMatt Roper src_h > fb_height || 2346b36552b3SMatt Roper src_y > fb_height - src_h) { 234742ef8789SVille Syrjälä DRM_DEBUG_KMS("Invalid source coordinates " 234842ef8789SVille Syrjälä "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", 2349b36552b3SMatt Roper src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, 2350b36552b3SMatt Roper src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, 2351b36552b3SMatt Roper src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, 2352b36552b3SMatt Roper src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); 235342ef8789SVille Syrjälä ret = -ENOSPC; 235442ef8789SVille Syrjälä goto out; 235542ef8789SVille Syrjälä } 235642ef8789SVille Syrjälä 23573d30a59bSDaniel Vetter plane->old_fb = plane->fb; 23588cf5c917SJesse Barnes ret = plane->funcs->update_plane(plane, crtc, fb, 2359b36552b3SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 2360b36552b3SMatt Roper src_x, src_y, src_w, src_h); 23618cf5c917SJesse Barnes if (!ret) { 23628cf5c917SJesse Barnes plane->crtc = crtc; 23638cf5c917SJesse Barnes plane->fb = fb; 236435f8badcSDaniel Vetter fb = NULL; 23650fe27f06SDaniel Vetter } else { 23663d30a59bSDaniel Vetter plane->old_fb = NULL; 23678cf5c917SJesse Barnes } 23688cf5c917SJesse Barnes 23698cf5c917SJesse Barnes out: 23706c2a7532SDaniel Vetter if (fb) 23716c2a7532SDaniel Vetter drm_framebuffer_unreference(fb); 23723d30a59bSDaniel Vetter if (plane->old_fb) 23733d30a59bSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 23743d30a59bSDaniel Vetter plane->old_fb = NULL; 23758cf5c917SJesse Barnes 23768cf5c917SJesse Barnes return ret; 2377f2b50c11SDaniel Vetter } 2378b36552b3SMatt Roper 2379f2b50c11SDaniel Vetter static int setplane_internal(struct drm_plane *plane, 2380f2b50c11SDaniel Vetter struct drm_crtc *crtc, 2381f2b50c11SDaniel Vetter struct drm_framebuffer *fb, 2382f2b50c11SDaniel Vetter int32_t crtc_x, int32_t crtc_y, 2383f2b50c11SDaniel Vetter uint32_t crtc_w, uint32_t crtc_h, 2384f2b50c11SDaniel Vetter /* src_{x,y,w,h} values are 16.16 fixed point */ 2385f2b50c11SDaniel Vetter uint32_t src_x, uint32_t src_y, 2386f2b50c11SDaniel Vetter uint32_t src_w, uint32_t src_h) 2387f2b50c11SDaniel Vetter { 2388f2b50c11SDaniel Vetter int ret; 2389f2b50c11SDaniel Vetter 2390f2b50c11SDaniel Vetter drm_modeset_lock_all(plane->dev); 2391f2b50c11SDaniel Vetter ret = __setplane_internal(plane, crtc, fb, 2392f2b50c11SDaniel Vetter crtc_x, crtc_y, crtc_w, crtc_h, 2393f2b50c11SDaniel Vetter src_x, src_y, src_w, src_h); 2394f2b50c11SDaniel Vetter drm_modeset_unlock_all(plane->dev); 2395f2b50c11SDaniel Vetter 2396f2b50c11SDaniel Vetter return ret; 2397b36552b3SMatt Roper } 2398b36552b3SMatt Roper 2399b36552b3SMatt Roper /** 2400b36552b3SMatt Roper * drm_mode_setplane - configure a plane's configuration 2401b36552b3SMatt Roper * @dev: DRM device 2402b36552b3SMatt Roper * @data: ioctl data* 2403b36552b3SMatt Roper * @file_priv: DRM file info 2404b36552b3SMatt Roper * 2405b36552b3SMatt Roper * Set plane configuration, including placement, fb, scaling, and other factors. 2406b36552b3SMatt Roper * Or pass a NULL fb to disable (planes may be disabled without providing a 2407b36552b3SMatt Roper * valid crtc). 2408b36552b3SMatt Roper * 2409b36552b3SMatt Roper * Returns: 24101a498633SDaniel Vetter * Zero on success, negative errno on failure. 2411b36552b3SMatt Roper */ 2412b36552b3SMatt Roper int drm_mode_setplane(struct drm_device *dev, void *data, 2413b36552b3SMatt Roper struct drm_file *file_priv) 2414b36552b3SMatt Roper { 2415b36552b3SMatt Roper struct drm_mode_set_plane *plane_req = data; 2416b36552b3SMatt Roper struct drm_plane *plane; 2417b36552b3SMatt Roper struct drm_crtc *crtc = NULL; 2418b36552b3SMatt Roper struct drm_framebuffer *fb = NULL; 2419b36552b3SMatt Roper 2420b36552b3SMatt Roper if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2421b36552b3SMatt Roper return -EINVAL; 2422b36552b3SMatt Roper 2423b36552b3SMatt Roper /* 2424b36552b3SMatt Roper * First, find the plane, crtc, and fb objects. If not available, 2425b36552b3SMatt Roper * we don't bother to call the driver. 2426b36552b3SMatt Roper */ 2427933f622fSRob Clark plane = drm_plane_find(dev, plane_req->plane_id); 2428933f622fSRob Clark if (!plane) { 2429b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown plane ID %d\n", 2430b36552b3SMatt Roper plane_req->plane_id); 2431b36552b3SMatt Roper return -ENOENT; 2432b36552b3SMatt Roper } 2433b36552b3SMatt Roper 2434b36552b3SMatt Roper if (plane_req->fb_id) { 2435b36552b3SMatt Roper fb = drm_framebuffer_lookup(dev, plane_req->fb_id); 2436b36552b3SMatt Roper if (!fb) { 2437b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", 2438b36552b3SMatt Roper plane_req->fb_id); 2439b36552b3SMatt Roper return -ENOENT; 2440b36552b3SMatt Roper } 2441b36552b3SMatt Roper 2442933f622fSRob Clark crtc = drm_crtc_find(dev, plane_req->crtc_id); 2443933f622fSRob Clark if (!crtc) { 2444b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown crtc ID %d\n", 2445b36552b3SMatt Roper plane_req->crtc_id); 2446b36552b3SMatt Roper return -ENOENT; 2447b36552b3SMatt Roper } 2448b36552b3SMatt Roper } 2449b36552b3SMatt Roper 2450161d0dc1SMatt Roper /* 2451161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 2452161d0dc1SMatt Roper * framebuffer depending on success. 2453161d0dc1SMatt Roper */ 245417cfd91fSChris Wilson return setplane_internal(plane, crtc, fb, 2455b36552b3SMatt Roper plane_req->crtc_x, plane_req->crtc_y, 2456b36552b3SMatt Roper plane_req->crtc_w, plane_req->crtc_h, 2457b36552b3SMatt Roper plane_req->src_x, plane_req->src_y, 2458b36552b3SMatt Roper plane_req->src_w, plane_req->src_h); 24598cf5c917SJesse Barnes } 24608cf5c917SJesse Barnes 24618cf5c917SJesse Barnes /** 24622d13b679SDaniel Vetter * drm_mode_set_config_internal - helper to call ->set_config 24632d13b679SDaniel Vetter * @set: modeset config to set 24642d13b679SDaniel Vetter * 24652d13b679SDaniel Vetter * This is a little helper to wrap internal calls to the ->set_config driver 24662d13b679SDaniel Vetter * interface. The only thing it adds is correct refcounting dance. 2467c8e32cc1SDaniel Vetter * 2468c8e32cc1SDaniel Vetter * Returns: 24691a498633SDaniel Vetter * Zero on success, negative errno on failure. 24702d13b679SDaniel Vetter */ 24712d13b679SDaniel Vetter int drm_mode_set_config_internal(struct drm_mode_set *set) 24722d13b679SDaniel Vetter { 24732d13b679SDaniel Vetter struct drm_crtc *crtc = set->crtc; 24745cef29aaSDaniel Vetter struct drm_framebuffer *fb; 24755cef29aaSDaniel Vetter struct drm_crtc *tmp; 2476b0d12325SDaniel Vetter int ret; 24772d13b679SDaniel Vetter 24785cef29aaSDaniel Vetter /* 24795cef29aaSDaniel Vetter * NOTE: ->set_config can also disable other crtcs (if we steal all 24805cef29aaSDaniel Vetter * connectors from it), hence we need to refcount the fbs across all 24815cef29aaSDaniel Vetter * crtcs. Atomic modeset will have saner semantics ... 24825cef29aaSDaniel Vetter */ 2483e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) 24843d30a59bSDaniel Vetter tmp->primary->old_fb = tmp->primary->fb; 24855cef29aaSDaniel Vetter 2486b0d12325SDaniel Vetter fb = set->fb; 2487b0d12325SDaniel Vetter 2488b0d12325SDaniel Vetter ret = crtc->funcs->set_config(set); 2489b0d12325SDaniel Vetter if (ret == 0) { 2490e13161afSMatt Roper crtc->primary->crtc = crtc; 24910fe27f06SDaniel Vetter crtc->primary->fb = fb; 24925cef29aaSDaniel Vetter } 2493cc85e121SDaniel Vetter 2494e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) { 2495f4510a27SMatt Roper if (tmp->primary->fb) 2496f4510a27SMatt Roper drm_framebuffer_reference(tmp->primary->fb); 24973d30a59bSDaniel Vetter if (tmp->primary->old_fb) 24983d30a59bSDaniel Vetter drm_framebuffer_unreference(tmp->primary->old_fb); 24993d30a59bSDaniel Vetter tmp->primary->old_fb = NULL; 2500b0d12325SDaniel Vetter } 2501b0d12325SDaniel Vetter 2502b0d12325SDaniel Vetter return ret; 25032d13b679SDaniel Vetter } 25042d13b679SDaniel Vetter EXPORT_SYMBOL(drm_mode_set_config_internal); 25052d13b679SDaniel Vetter 2506af93629dSMatt Roper /** 2507ecb7e16bSGustavo Padovan * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode 2508ecb7e16bSGustavo Padovan * @mode: mode to query 2509ecb7e16bSGustavo Padovan * @hdisplay: hdisplay value to fill in 2510ecb7e16bSGustavo Padovan * @vdisplay: vdisplay value to fill in 2511ecb7e16bSGustavo Padovan * 2512ecb7e16bSGustavo Padovan * The vdisplay value will be doubled if the specified mode is a stereo mode of 2513ecb7e16bSGustavo Padovan * the appropriate layout. 2514ecb7e16bSGustavo Padovan */ 2515ecb7e16bSGustavo Padovan void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, 2516ecb7e16bSGustavo Padovan int *hdisplay, int *vdisplay) 2517ecb7e16bSGustavo Padovan { 2518ecb7e16bSGustavo Padovan struct drm_display_mode adjusted; 2519ecb7e16bSGustavo Padovan 2520ecb7e16bSGustavo Padovan drm_mode_copy(&adjusted, mode); 2521ecb7e16bSGustavo Padovan drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); 2522ecb7e16bSGustavo Padovan *hdisplay = adjusted.crtc_hdisplay; 2523ecb7e16bSGustavo Padovan *vdisplay = adjusted.crtc_vdisplay; 2524ecb7e16bSGustavo Padovan } 2525ecb7e16bSGustavo Padovan EXPORT_SYMBOL(drm_crtc_get_hv_timing); 2526ecb7e16bSGustavo Padovan 2527ecb7e16bSGustavo Padovan /** 2528af93629dSMatt Roper * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the 2529af93629dSMatt Roper * CRTC viewport 2530af93629dSMatt Roper * @crtc: CRTC that framebuffer will be displayed on 2531af93629dSMatt Roper * @x: x panning 2532af93629dSMatt Roper * @y: y panning 2533af93629dSMatt Roper * @mode: mode that framebuffer will be displayed under 2534af93629dSMatt Roper * @fb: framebuffer to check size of 2535c11e9283SDamien Lespiau */ 2536af93629dSMatt Roper int drm_crtc_check_viewport(const struct drm_crtc *crtc, 2537c11e9283SDamien Lespiau int x, int y, 2538c11e9283SDamien Lespiau const struct drm_display_mode *mode, 2539c11e9283SDamien Lespiau const struct drm_framebuffer *fb) 2540c11e9283SDamien Lespiau 2541c11e9283SDamien Lespiau { 2542c11e9283SDamien Lespiau int hdisplay, vdisplay; 2543c11e9283SDamien Lespiau 2544ecb7e16bSGustavo Padovan drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); 2545a0c1bbb0SDamien Lespiau 2546c11e9283SDamien Lespiau if (crtc->invert_dimensions) 2547c11e9283SDamien Lespiau swap(hdisplay, vdisplay); 2548c11e9283SDamien Lespiau 2549c11e9283SDamien Lespiau if (hdisplay > fb->width || 2550c11e9283SDamien Lespiau vdisplay > fb->height || 2551c11e9283SDamien Lespiau x > fb->width - hdisplay || 2552c11e9283SDamien Lespiau y > fb->height - vdisplay) { 2553c11e9283SDamien Lespiau DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", 2554c11e9283SDamien Lespiau fb->width, fb->height, hdisplay, vdisplay, x, y, 2555c11e9283SDamien Lespiau crtc->invert_dimensions ? " (inverted)" : ""); 2556c11e9283SDamien Lespiau return -ENOSPC; 2557c11e9283SDamien Lespiau } 2558c11e9283SDamien Lespiau 2559c11e9283SDamien Lespiau return 0; 2560c11e9283SDamien Lespiau } 2561af93629dSMatt Roper EXPORT_SYMBOL(drm_crtc_check_viewport); 2562c11e9283SDamien Lespiau 25632d13b679SDaniel Vetter /** 2564f453ba04SDave Airlie * drm_mode_setcrtc - set CRTC configuration 2565065a50edSDaniel Vetter * @dev: drm device for the ioctl 2566065a50edSDaniel Vetter * @data: data pointer for the ioctl 2567065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2568f453ba04SDave Airlie * 2569f453ba04SDave Airlie * Build a new CRTC configuration based on user request. 2570f453ba04SDave Airlie * 2571f453ba04SDave Airlie * Called by the user via ioctl. 2572f453ba04SDave Airlie * 2573c8e32cc1SDaniel Vetter * Returns: 25741a498633SDaniel Vetter * Zero on success, negative errno on failure. 2575f453ba04SDave Airlie */ 2576f453ba04SDave Airlie int drm_mode_setcrtc(struct drm_device *dev, void *data, 2577f453ba04SDave Airlie struct drm_file *file_priv) 2578f453ba04SDave Airlie { 2579f453ba04SDave Airlie struct drm_mode_config *config = &dev->mode_config; 2580f453ba04SDave Airlie struct drm_mode_crtc *crtc_req = data; 25816653cc8dSVille Syrjälä struct drm_crtc *crtc; 2582f453ba04SDave Airlie struct drm_connector **connector_set = NULL, *connector; 2583f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 2584f453ba04SDave Airlie struct drm_display_mode *mode = NULL; 2585f453ba04SDave Airlie struct drm_mode_set set; 2586f453ba04SDave Airlie uint32_t __user *set_connectors_ptr; 25874a1b0714SLaurent Pinchart int ret; 2588f453ba04SDave Airlie int i; 2589f453ba04SDave Airlie 2590fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2591fb3b06c8SDave Airlie return -EINVAL; 2592fb3b06c8SDave Airlie 259301447e9fSZhao Junwang /* 259401447e9fSZhao Junwang * Universal plane src offsets are only 16.16, prevent havoc for 259501447e9fSZhao Junwang * drivers using universal plane code internally. 259601447e9fSZhao Junwang */ 259701447e9fSZhao Junwang if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) 25981d97e915SVille Syrjälä return -ERANGE; 25991d97e915SVille Syrjälä 260084849903SDaniel Vetter drm_modeset_lock_all(dev); 2601a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_req->crtc_id); 2602a2b34e22SRob Clark if (!crtc) { 260358367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 2604f27657f2SVille Syrjälä ret = -ENOENT; 2605f453ba04SDave Airlie goto out; 2606f453ba04SDave Airlie } 26079440106bSJerome Glisse DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 2608f453ba04SDave Airlie 2609f453ba04SDave Airlie if (crtc_req->mode_valid) { 2610f453ba04SDave Airlie /* If we have a mode we need a framebuffer. */ 2611f453ba04SDave Airlie /* If we pass -1, set the mode with the currently bound fb */ 2612f453ba04SDave Airlie if (crtc_req->fb_id == -1) { 2613f4510a27SMatt Roper if (!crtc->primary->fb) { 26146653cc8dSVille Syrjälä DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 26156653cc8dSVille Syrjälä ret = -EINVAL; 26166653cc8dSVille Syrjälä goto out; 26176653cc8dSVille Syrjälä } 2618f4510a27SMatt Roper fb = crtc->primary->fb; 2619b0d12325SDaniel Vetter /* Make refcounting symmetric with the lookup path. */ 2620b0d12325SDaniel Vetter drm_framebuffer_reference(fb); 2621f453ba04SDave Airlie } else { 2622786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); 2623786b99edSDaniel Vetter if (!fb) { 262458367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown FB ID%d\n", 262558367ed6SZhao Yakui crtc_req->fb_id); 262637c4e705SVille Syrjälä ret = -ENOENT; 2627f453ba04SDave Airlie goto out; 2628f453ba04SDave Airlie } 2629f453ba04SDave Airlie } 2630f453ba04SDave Airlie 2631f453ba04SDave Airlie mode = drm_mode_create(dev); 2632ee34ab5bSVille Syrjälä if (!mode) { 2633ee34ab5bSVille Syrjälä ret = -ENOMEM; 2634ee34ab5bSVille Syrjälä goto out; 2635ee34ab5bSVille Syrjälä } 2636ee34ab5bSVille Syrjälä 2637934a8a89SDaniel Stone ret = drm_mode_convert_umode(mode, &crtc_req->mode); 263890367bf6SVille Syrjälä if (ret) { 263990367bf6SVille Syrjälä DRM_DEBUG_KMS("Invalid mode\n"); 264090367bf6SVille Syrjälä goto out; 264190367bf6SVille Syrjälä } 264290367bf6SVille Syrjälä 2643f453ba04SDave Airlie drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 26445f61bb42SVille Syrjälä 26457eb5f302SLaurent Pinchart /* 26467eb5f302SLaurent Pinchart * Check whether the primary plane supports the fb pixel format. 26477eb5f302SLaurent Pinchart * Drivers not implementing the universal planes API use a 26487eb5f302SLaurent Pinchart * default formats list provided by the DRM core which doesn't 26497eb5f302SLaurent Pinchart * match real hardware capabilities. Skip the check in that 26507eb5f302SLaurent Pinchart * case. 26517eb5f302SLaurent Pinchart */ 26527eb5f302SLaurent Pinchart if (!crtc->primary->format_default) { 26537eb5f302SLaurent Pinchart ret = drm_plane_check_pixel_format(crtc->primary, 26547eb5f302SLaurent Pinchart fb->pixel_format); 26557eb5f302SLaurent Pinchart if (ret) { 26567eb5f302SLaurent Pinchart DRM_DEBUG_KMS("Invalid pixel format %s\n", 26577eb5f302SLaurent Pinchart drm_get_format_name(fb->pixel_format)); 26587eb5f302SLaurent Pinchart goto out; 26597eb5f302SLaurent Pinchart } 26607eb5f302SLaurent Pinchart } 26617eb5f302SLaurent Pinchart 2662c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, 2663c11e9283SDamien Lespiau mode, fb); 2664c11e9283SDamien Lespiau if (ret) 26655f61bb42SVille Syrjälä goto out; 2666c11e9283SDamien Lespiau 2667f453ba04SDave Airlie } 2668f453ba04SDave Airlie 2669f453ba04SDave Airlie if (crtc_req->count_connectors == 0 && mode) { 267058367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 2671f453ba04SDave Airlie ret = -EINVAL; 2672f453ba04SDave Airlie goto out; 2673f453ba04SDave Airlie } 2674f453ba04SDave Airlie 26757781de74SJakob Bornecrantz if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 267658367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 2677f453ba04SDave Airlie crtc_req->count_connectors); 2678f453ba04SDave Airlie ret = -EINVAL; 2679f453ba04SDave Airlie goto out; 2680f453ba04SDave Airlie } 2681f453ba04SDave Airlie 2682f453ba04SDave Airlie if (crtc_req->count_connectors > 0) { 2683f453ba04SDave Airlie u32 out_id; 2684f453ba04SDave Airlie 2685f453ba04SDave Airlie /* Avoid unbounded kernel memory allocation */ 2686f453ba04SDave Airlie if (crtc_req->count_connectors > config->num_connector) { 2687f453ba04SDave Airlie ret = -EINVAL; 2688f453ba04SDave Airlie goto out; 2689f453ba04SDave Airlie } 2690f453ba04SDave Airlie 26912f6c5389SThierry Reding connector_set = kmalloc_array(crtc_req->count_connectors, 2692f453ba04SDave Airlie sizeof(struct drm_connector *), 2693f453ba04SDave Airlie GFP_KERNEL); 2694f453ba04SDave Airlie if (!connector_set) { 2695f453ba04SDave Airlie ret = -ENOMEM; 2696f453ba04SDave Airlie goto out; 2697f453ba04SDave Airlie } 2698f453ba04SDave Airlie 2699f453ba04SDave Airlie for (i = 0; i < crtc_req->count_connectors; i++) { 270081f6c7f8SVille Syrjälä set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 2701f453ba04SDave Airlie if (get_user(out_id, &set_connectors_ptr[i])) { 2702f453ba04SDave Airlie ret = -EFAULT; 2703f453ba04SDave Airlie goto out; 2704f453ba04SDave Airlie } 2705f453ba04SDave Airlie 2706a2b34e22SRob Clark connector = drm_connector_find(dev, out_id); 2707a2b34e22SRob Clark if (!connector) { 270858367ed6SZhao Yakui DRM_DEBUG_KMS("Connector id %d unknown\n", 270958367ed6SZhao Yakui out_id); 2710f27657f2SVille Syrjälä ret = -ENOENT; 2711f453ba04SDave Airlie goto out; 2712f453ba04SDave Airlie } 27139440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 27149440106bSJerome Glisse connector->base.id, 271525933820SJani Nikula connector->name); 2716f453ba04SDave Airlie 2717f453ba04SDave Airlie connector_set[i] = connector; 2718f453ba04SDave Airlie } 2719f453ba04SDave Airlie } 2720f453ba04SDave Airlie 2721f453ba04SDave Airlie set.crtc = crtc; 2722f453ba04SDave Airlie set.x = crtc_req->x; 2723f453ba04SDave Airlie set.y = crtc_req->y; 2724f453ba04SDave Airlie set.mode = mode; 2725f453ba04SDave Airlie set.connectors = connector_set; 2726f453ba04SDave Airlie set.num_connectors = crtc_req->count_connectors; 2727f453ba04SDave Airlie set.fb = fb; 27282d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 2729f453ba04SDave Airlie 2730f453ba04SDave Airlie out: 2731b0d12325SDaniel Vetter if (fb) 2732b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 2733b0d12325SDaniel Vetter 2734f453ba04SDave Airlie kfree(connector_set); 2735ee34ab5bSVille Syrjälä drm_mode_destroy(dev, mode); 273684849903SDaniel Vetter drm_modeset_unlock_all(dev); 2737f453ba04SDave Airlie return ret; 2738f453ba04SDave Airlie } 2739f453ba04SDave Airlie 2740161d0dc1SMatt Roper /** 2741161d0dc1SMatt Roper * drm_mode_cursor_universal - translate legacy cursor ioctl call into a 2742161d0dc1SMatt Roper * universal plane handler call 2743161d0dc1SMatt Roper * @crtc: crtc to update cursor for 2744161d0dc1SMatt Roper * @req: data pointer for the ioctl 2745161d0dc1SMatt Roper * @file_priv: drm file for the ioctl call 2746161d0dc1SMatt Roper * 2747161d0dc1SMatt Roper * Legacy cursor ioctl's work directly with driver buffer handles. To 2748161d0dc1SMatt Roper * translate legacy ioctl calls into universal plane handler calls, we need to 2749161d0dc1SMatt Roper * wrap the native buffer handle in a drm_framebuffer. 2750161d0dc1SMatt Roper * 2751161d0dc1SMatt Roper * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB 2752161d0dc1SMatt Roper * buffer with a pitch of 4*width; the universal plane interface should be used 2753161d0dc1SMatt Roper * directly in cases where the hardware can support other buffer settings and 2754161d0dc1SMatt Roper * userspace wants to make use of these capabilities. 2755161d0dc1SMatt Roper * 2756161d0dc1SMatt Roper * Returns: 27571a498633SDaniel Vetter * Zero on success, negative errno on failure. 2758161d0dc1SMatt Roper */ 2759161d0dc1SMatt Roper static int drm_mode_cursor_universal(struct drm_crtc *crtc, 2760161d0dc1SMatt Roper struct drm_mode_cursor2 *req, 2761161d0dc1SMatt Roper struct drm_file *file_priv) 2762161d0dc1SMatt Roper { 2763161d0dc1SMatt Roper struct drm_device *dev = crtc->dev; 2764161d0dc1SMatt Roper struct drm_framebuffer *fb = NULL; 2765161d0dc1SMatt Roper struct drm_mode_fb_cmd2 fbreq = { 2766161d0dc1SMatt Roper .width = req->width, 2767161d0dc1SMatt Roper .height = req->height, 2768161d0dc1SMatt Roper .pixel_format = DRM_FORMAT_ARGB8888, 2769161d0dc1SMatt Roper .pitches = { req->width * 4 }, 2770161d0dc1SMatt Roper .handles = { req->handle }, 2771161d0dc1SMatt Roper }; 2772161d0dc1SMatt Roper int32_t crtc_x, crtc_y; 2773161d0dc1SMatt Roper uint32_t crtc_w = 0, crtc_h = 0; 2774161d0dc1SMatt Roper uint32_t src_w = 0, src_h = 0; 2775161d0dc1SMatt Roper int ret = 0; 2776161d0dc1SMatt Roper 2777161d0dc1SMatt Roper BUG_ON(!crtc->cursor); 2778f2b50c11SDaniel Vetter WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); 2779161d0dc1SMatt Roper 2780161d0dc1SMatt Roper /* 2781161d0dc1SMatt Roper * Obtain fb we'll be using (either new or existing) and take an extra 2782161d0dc1SMatt Roper * reference to it if fb != null. setplane will take care of dropping 2783161d0dc1SMatt Roper * the reference if the plane update fails. 2784161d0dc1SMatt Roper */ 2785161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_BO) { 2786161d0dc1SMatt Roper if (req->handle) { 27879a6f5130SChris Wilson fb = internal_framebuffer_create(dev, &fbreq, file_priv); 2788161d0dc1SMatt Roper if (IS_ERR(fb)) { 2789161d0dc1SMatt Roper DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); 2790161d0dc1SMatt Roper return PTR_ERR(fb); 2791161d0dc1SMatt Roper } 2792161d0dc1SMatt Roper } else { 2793161d0dc1SMatt Roper fb = NULL; 2794161d0dc1SMatt Roper } 2795161d0dc1SMatt Roper } else { 2796161d0dc1SMatt Roper fb = crtc->cursor->fb; 2797161d0dc1SMatt Roper if (fb) 2798161d0dc1SMatt Roper drm_framebuffer_reference(fb); 2799161d0dc1SMatt Roper } 2800161d0dc1SMatt Roper 2801161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_MOVE) { 2802161d0dc1SMatt Roper crtc_x = req->x; 2803161d0dc1SMatt Roper crtc_y = req->y; 2804161d0dc1SMatt Roper } else { 2805161d0dc1SMatt Roper crtc_x = crtc->cursor_x; 2806161d0dc1SMatt Roper crtc_y = crtc->cursor_y; 2807161d0dc1SMatt Roper } 2808161d0dc1SMatt Roper 2809161d0dc1SMatt Roper if (fb) { 2810161d0dc1SMatt Roper crtc_w = fb->width; 2811161d0dc1SMatt Roper crtc_h = fb->height; 2812161d0dc1SMatt Roper src_w = fb->width << 16; 2813161d0dc1SMatt Roper src_h = fb->height << 16; 2814161d0dc1SMatt Roper } 2815161d0dc1SMatt Roper 2816161d0dc1SMatt Roper /* 2817161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 2818161d0dc1SMatt Roper * framebuffer depending on success. 2819161d0dc1SMatt Roper */ 2820f2b50c11SDaniel Vetter ret = __setplane_internal(crtc->cursor, crtc, fb, 2821161d0dc1SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 2822161d0dc1SMatt Roper 0, 0, src_w, src_h); 2823161d0dc1SMatt Roper 2824161d0dc1SMatt Roper /* Update successful; save new cursor position, if necessary */ 2825161d0dc1SMatt Roper if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { 2826161d0dc1SMatt Roper crtc->cursor_x = req->x; 2827161d0dc1SMatt Roper crtc->cursor_y = req->y; 2828161d0dc1SMatt Roper } 2829161d0dc1SMatt Roper 2830161d0dc1SMatt Roper return ret; 2831161d0dc1SMatt Roper } 2832161d0dc1SMatt Roper 28334c813d4dSDave Airlie static int drm_mode_cursor_common(struct drm_device *dev, 28344c813d4dSDave Airlie struct drm_mode_cursor2 *req, 28354c813d4dSDave Airlie struct drm_file *file_priv) 2836f453ba04SDave Airlie { 2837f453ba04SDave Airlie struct drm_crtc *crtc; 2838f453ba04SDave Airlie int ret = 0; 2839f453ba04SDave Airlie 2840fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2841fb3b06c8SDave Airlie return -EINVAL; 2842fb3b06c8SDave Airlie 28437c4eaca4SJakob Bornecrantz if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) 2844f453ba04SDave Airlie return -EINVAL; 2845f453ba04SDave Airlie 2846a2b34e22SRob Clark crtc = drm_crtc_find(dev, req->crtc_id); 2847a2b34e22SRob Clark if (!crtc) { 284858367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); 2849f27657f2SVille Syrjälä return -ENOENT; 2850f453ba04SDave Airlie } 2851f453ba04SDave Airlie 2852161d0dc1SMatt Roper /* 2853161d0dc1SMatt Roper * If this crtc has a universal cursor plane, call that plane's update 2854161d0dc1SMatt Roper * handler rather than using legacy cursor handlers. 2855161d0dc1SMatt Roper */ 28564d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->cursor); 2857f2b50c11SDaniel Vetter if (crtc->cursor) { 2858f2b50c11SDaniel Vetter ret = drm_mode_cursor_universal(crtc, req, file_priv); 2859f2b50c11SDaniel Vetter goto out; 2860f2b50c11SDaniel Vetter } 2861f2b50c11SDaniel Vetter 2862f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_BO) { 28634c813d4dSDave Airlie if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { 2864f453ba04SDave Airlie ret = -ENXIO; 2865f453ba04SDave Airlie goto out; 2866f453ba04SDave Airlie } 2867f453ba04SDave Airlie /* Turns off the cursor if handle is 0 */ 28684c813d4dSDave Airlie if (crtc->funcs->cursor_set2) 28694c813d4dSDave Airlie ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, 28704c813d4dSDave Airlie req->width, req->height, req->hot_x, req->hot_y); 28714c813d4dSDave Airlie else 2872f453ba04SDave Airlie ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, 2873f453ba04SDave Airlie req->width, req->height); 2874f453ba04SDave Airlie } 2875f453ba04SDave Airlie 2876f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_MOVE) { 2877f453ba04SDave Airlie if (crtc->funcs->cursor_move) { 2878f453ba04SDave Airlie ret = crtc->funcs->cursor_move(crtc, req->x, req->y); 2879f453ba04SDave Airlie } else { 2880f453ba04SDave Airlie ret = -EFAULT; 2881f453ba04SDave Airlie goto out; 2882f453ba04SDave Airlie } 2883f453ba04SDave Airlie } 2884f453ba04SDave Airlie out: 2885d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 2886dac35663SDaniel Vetter 2887f453ba04SDave Airlie return ret; 28884c813d4dSDave Airlie 28894c813d4dSDave Airlie } 2890c8e32cc1SDaniel Vetter 2891c8e32cc1SDaniel Vetter 2892c8e32cc1SDaniel Vetter /** 2893c8e32cc1SDaniel Vetter * drm_mode_cursor_ioctl - set CRTC's cursor configuration 2894c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2895c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2896c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2897c8e32cc1SDaniel Vetter * 2898c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. 2899c8e32cc1SDaniel Vetter * 2900c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2901c8e32cc1SDaniel Vetter * 2902c8e32cc1SDaniel Vetter * Returns: 29031a498633SDaniel Vetter * Zero on success, negative errno on failure. 2904c8e32cc1SDaniel Vetter */ 29054c813d4dSDave Airlie int drm_mode_cursor_ioctl(struct drm_device *dev, 29064c813d4dSDave Airlie void *data, struct drm_file *file_priv) 29074c813d4dSDave Airlie { 29084c813d4dSDave Airlie struct drm_mode_cursor *req = data; 29094c813d4dSDave Airlie struct drm_mode_cursor2 new_req; 29104c813d4dSDave Airlie 29114c813d4dSDave Airlie memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); 29124c813d4dSDave Airlie new_req.hot_x = new_req.hot_y = 0; 29134c813d4dSDave Airlie 29144c813d4dSDave Airlie return drm_mode_cursor_common(dev, &new_req, file_priv); 29154c813d4dSDave Airlie } 29164c813d4dSDave Airlie 2917c8e32cc1SDaniel Vetter /** 2918c8e32cc1SDaniel Vetter * drm_mode_cursor2_ioctl - set CRTC's cursor configuration 2919c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2920c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2921c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2922c8e32cc1SDaniel Vetter * 2923c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. This implements the 2nd 2924c8e32cc1SDaniel Vetter * version of the cursor ioctl, which allows userspace to additionally specify 2925c8e32cc1SDaniel Vetter * the hotspot of the pointer. 2926c8e32cc1SDaniel Vetter * 2927c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2928c8e32cc1SDaniel Vetter * 2929c8e32cc1SDaniel Vetter * Returns: 29301a498633SDaniel Vetter * Zero on success, negative errno on failure. 2931c8e32cc1SDaniel Vetter */ 29324c813d4dSDave Airlie int drm_mode_cursor2_ioctl(struct drm_device *dev, 29334c813d4dSDave Airlie void *data, struct drm_file *file_priv) 29344c813d4dSDave Airlie { 29354c813d4dSDave Airlie struct drm_mode_cursor2 *req = data; 29364dfd909fSThierry Reding 29374c813d4dSDave Airlie return drm_mode_cursor_common(dev, req, file_priv); 2938f453ba04SDave Airlie } 2939f453ba04SDave Airlie 2940c8e32cc1SDaniel Vetter /** 2941c8e32cc1SDaniel Vetter * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description 2942c8e32cc1SDaniel Vetter * @bpp: bits per pixels 2943c8e32cc1SDaniel Vetter * @depth: bit depth per pixel 2944c8e32cc1SDaniel Vetter * 2945c8e32cc1SDaniel Vetter * Computes a drm fourcc pixel format code for the given @bpp/@depth values. 2946c8e32cc1SDaniel Vetter * Useful in fbdev emulation code, since that deals in those values. 2947c8e32cc1SDaniel Vetter */ 2948308e5bcbSJesse Barnes uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) 2949308e5bcbSJesse Barnes { 2950308e5bcbSJesse Barnes uint32_t fmt; 2951308e5bcbSJesse Barnes 2952308e5bcbSJesse Barnes switch (bpp) { 2953308e5bcbSJesse Barnes case 8: 2954d84f031bSVille Syrjälä fmt = DRM_FORMAT_C8; 2955308e5bcbSJesse Barnes break; 2956308e5bcbSJesse Barnes case 16: 2957308e5bcbSJesse Barnes if (depth == 15) 295804b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB1555; 2959308e5bcbSJesse Barnes else 296004b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB565; 2961308e5bcbSJesse Barnes break; 2962308e5bcbSJesse Barnes case 24: 296304b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB888; 2964308e5bcbSJesse Barnes break; 2965308e5bcbSJesse Barnes case 32: 2966308e5bcbSJesse Barnes if (depth == 24) 296704b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 2968308e5bcbSJesse Barnes else if (depth == 30) 296904b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB2101010; 2970308e5bcbSJesse Barnes else 297104b3924dSVille Syrjälä fmt = DRM_FORMAT_ARGB8888; 2972308e5bcbSJesse Barnes break; 2973308e5bcbSJesse Barnes default: 297404b3924dSVille Syrjälä DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); 297504b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 2976308e5bcbSJesse Barnes break; 2977308e5bcbSJesse Barnes } 2978308e5bcbSJesse Barnes 2979308e5bcbSJesse Barnes return fmt; 2980308e5bcbSJesse Barnes } 2981308e5bcbSJesse Barnes EXPORT_SYMBOL(drm_mode_legacy_fb_format); 2982308e5bcbSJesse Barnes 2983f453ba04SDave Airlie /** 2984f453ba04SDave Airlie * drm_mode_addfb - add an FB to the graphics configuration 2985065a50edSDaniel Vetter * @dev: drm device for the ioctl 2986065a50edSDaniel Vetter * @data: data pointer for the ioctl 2987065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2988f453ba04SDave Airlie * 2989c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request. This is the 2990209f5527SChuck Ebbert * original addfb ioctl which only supported RGB formats. 2991f453ba04SDave Airlie * 2992f453ba04SDave Airlie * Called by the user via ioctl. 2993f453ba04SDave Airlie * 2994c8e32cc1SDaniel Vetter * Returns: 29951a498633SDaniel Vetter * Zero on success, negative errno on failure. 2996f453ba04SDave Airlie */ 2997f453ba04SDave Airlie int drm_mode_addfb(struct drm_device *dev, 2998f453ba04SDave Airlie void *data, struct drm_file *file_priv) 2999f453ba04SDave Airlie { 3000308e5bcbSJesse Barnes struct drm_mode_fb_cmd *or = data; 3001308e5bcbSJesse Barnes struct drm_mode_fb_cmd2 r = {}; 3002228f2cb3SChuck Ebbert int ret; 3003308e5bcbSJesse Barnes 3004228f2cb3SChuck Ebbert /* convert to new format and call new ioctl */ 3005308e5bcbSJesse Barnes r.fb_id = or->fb_id; 3006308e5bcbSJesse Barnes r.width = or->width; 3007308e5bcbSJesse Barnes r.height = or->height; 3008308e5bcbSJesse Barnes r.pitches[0] = or->pitch; 3009308e5bcbSJesse Barnes r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); 3010308e5bcbSJesse Barnes r.handles[0] = or->handle; 3011308e5bcbSJesse Barnes 3012228f2cb3SChuck Ebbert ret = drm_mode_addfb2(dev, &r, file_priv); 3013228f2cb3SChuck Ebbert if (ret) 3014228f2cb3SChuck Ebbert return ret; 3015308e5bcbSJesse Barnes 3016228f2cb3SChuck Ebbert or->fb_id = r.fb_id; 30174b096ac1SDaniel Vetter 3018baf698b0SDaniel Vetter return 0; 3019308e5bcbSJesse Barnes } 3020308e5bcbSJesse Barnes 3021cff91b62SVille Syrjälä static int format_check(const struct drm_mode_fb_cmd2 *r) 3022935b5977SVille Syrjälä { 3023935b5977SVille Syrjälä uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; 3024935b5977SVille Syrjälä 3025935b5977SVille Syrjälä switch (format) { 3026935b5977SVille Syrjälä case DRM_FORMAT_C8: 3027935b5977SVille Syrjälä case DRM_FORMAT_RGB332: 3028935b5977SVille Syrjälä case DRM_FORMAT_BGR233: 3029935b5977SVille Syrjälä case DRM_FORMAT_XRGB4444: 3030935b5977SVille Syrjälä case DRM_FORMAT_XBGR4444: 3031935b5977SVille Syrjälä case DRM_FORMAT_RGBX4444: 3032935b5977SVille Syrjälä case DRM_FORMAT_BGRX4444: 3033935b5977SVille Syrjälä case DRM_FORMAT_ARGB4444: 3034935b5977SVille Syrjälä case DRM_FORMAT_ABGR4444: 3035935b5977SVille Syrjälä case DRM_FORMAT_RGBA4444: 3036935b5977SVille Syrjälä case DRM_FORMAT_BGRA4444: 3037935b5977SVille Syrjälä case DRM_FORMAT_XRGB1555: 3038935b5977SVille Syrjälä case DRM_FORMAT_XBGR1555: 3039935b5977SVille Syrjälä case DRM_FORMAT_RGBX5551: 3040935b5977SVille Syrjälä case DRM_FORMAT_BGRX5551: 3041935b5977SVille Syrjälä case DRM_FORMAT_ARGB1555: 3042935b5977SVille Syrjälä case DRM_FORMAT_ABGR1555: 3043935b5977SVille Syrjälä case DRM_FORMAT_RGBA5551: 3044935b5977SVille Syrjälä case DRM_FORMAT_BGRA5551: 3045935b5977SVille Syrjälä case DRM_FORMAT_RGB565: 3046935b5977SVille Syrjälä case DRM_FORMAT_BGR565: 3047935b5977SVille Syrjälä case DRM_FORMAT_RGB888: 3048935b5977SVille Syrjälä case DRM_FORMAT_BGR888: 3049935b5977SVille Syrjälä case DRM_FORMAT_XRGB8888: 3050935b5977SVille Syrjälä case DRM_FORMAT_XBGR8888: 3051935b5977SVille Syrjälä case DRM_FORMAT_RGBX8888: 3052935b5977SVille Syrjälä case DRM_FORMAT_BGRX8888: 3053935b5977SVille Syrjälä case DRM_FORMAT_ARGB8888: 3054935b5977SVille Syrjälä case DRM_FORMAT_ABGR8888: 3055935b5977SVille Syrjälä case DRM_FORMAT_RGBA8888: 3056935b5977SVille Syrjälä case DRM_FORMAT_BGRA8888: 3057935b5977SVille Syrjälä case DRM_FORMAT_XRGB2101010: 3058935b5977SVille Syrjälä case DRM_FORMAT_XBGR2101010: 3059935b5977SVille Syrjälä case DRM_FORMAT_RGBX1010102: 3060935b5977SVille Syrjälä case DRM_FORMAT_BGRX1010102: 3061935b5977SVille Syrjälä case DRM_FORMAT_ARGB2101010: 3062935b5977SVille Syrjälä case DRM_FORMAT_ABGR2101010: 3063935b5977SVille Syrjälä case DRM_FORMAT_RGBA1010102: 3064935b5977SVille Syrjälä case DRM_FORMAT_BGRA1010102: 3065935b5977SVille Syrjälä case DRM_FORMAT_YUYV: 3066935b5977SVille Syrjälä case DRM_FORMAT_YVYU: 3067935b5977SVille Syrjälä case DRM_FORMAT_UYVY: 3068935b5977SVille Syrjälä case DRM_FORMAT_VYUY: 3069935b5977SVille Syrjälä case DRM_FORMAT_AYUV: 3070935b5977SVille Syrjälä case DRM_FORMAT_NV12: 3071935b5977SVille Syrjälä case DRM_FORMAT_NV21: 3072935b5977SVille Syrjälä case DRM_FORMAT_NV16: 3073935b5977SVille Syrjälä case DRM_FORMAT_NV61: 3074ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 3075ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 3076935b5977SVille Syrjälä case DRM_FORMAT_YUV410: 3077935b5977SVille Syrjälä case DRM_FORMAT_YVU410: 3078935b5977SVille Syrjälä case DRM_FORMAT_YUV411: 3079935b5977SVille Syrjälä case DRM_FORMAT_YVU411: 3080935b5977SVille Syrjälä case DRM_FORMAT_YUV420: 3081935b5977SVille Syrjälä case DRM_FORMAT_YVU420: 3082935b5977SVille Syrjälä case DRM_FORMAT_YUV422: 3083935b5977SVille Syrjälä case DRM_FORMAT_YVU422: 3084935b5977SVille Syrjälä case DRM_FORMAT_YUV444: 3085935b5977SVille Syrjälä case DRM_FORMAT_YVU444: 3086935b5977SVille Syrjälä return 0; 3087935b5977SVille Syrjälä default: 308823c453a4SVille Syrjälä DRM_DEBUG_KMS("invalid pixel format %s\n", 308923c453a4SVille Syrjälä drm_get_format_name(r->pixel_format)); 3090935b5977SVille Syrjälä return -EINVAL; 3091935b5977SVille Syrjälä } 3092935b5977SVille Syrjälä } 3093935b5977SVille Syrjälä 3094cff91b62SVille Syrjälä static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) 3095d1b45d5fSVille Syrjälä { 3096d1b45d5fSVille Syrjälä int ret, hsub, vsub, num_planes, i; 3097d1b45d5fSVille Syrjälä 3098d1b45d5fSVille Syrjälä ret = format_check(r); 3099d1b45d5fSVille Syrjälä if (ret) { 31006ba6d03eSVille Syrjälä DRM_DEBUG_KMS("bad framebuffer format %s\n", 31016ba6d03eSVille Syrjälä drm_get_format_name(r->pixel_format)); 3102d1b45d5fSVille Syrjälä return ret; 3103d1b45d5fSVille Syrjälä } 3104d1b45d5fSVille Syrjälä 3105d1b45d5fSVille Syrjälä hsub = drm_format_horz_chroma_subsampling(r->pixel_format); 3106d1b45d5fSVille Syrjälä vsub = drm_format_vert_chroma_subsampling(r->pixel_format); 3107d1b45d5fSVille Syrjälä num_planes = drm_format_num_planes(r->pixel_format); 3108d1b45d5fSVille Syrjälä 3109d1b45d5fSVille Syrjälä if (r->width == 0 || r->width % hsub) { 3110209f5527SChuck Ebbert DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); 3111d1b45d5fSVille Syrjälä return -EINVAL; 3112d1b45d5fSVille Syrjälä } 3113d1b45d5fSVille Syrjälä 3114d1b45d5fSVille Syrjälä if (r->height == 0 || r->height % vsub) { 31151aa1b11cSDave Airlie DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); 3116d1b45d5fSVille Syrjälä return -EINVAL; 3117d1b45d5fSVille Syrjälä } 3118d1b45d5fSVille Syrjälä 3119d1b45d5fSVille Syrjälä for (i = 0; i < num_planes; i++) { 3120d1b45d5fSVille Syrjälä unsigned int width = r->width / (i != 0 ? hsub : 1); 3121b180b5d1SVille Syrjälä unsigned int height = r->height / (i != 0 ? vsub : 1); 3122b180b5d1SVille Syrjälä unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); 3123d1b45d5fSVille Syrjälä 3124d1b45d5fSVille Syrjälä if (!r->handles[i]) { 31251aa1b11cSDave Airlie DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); 3126d1b45d5fSVille Syrjälä return -EINVAL; 3127d1b45d5fSVille Syrjälä } 3128d1b45d5fSVille Syrjälä 3129b180b5d1SVille Syrjälä if ((uint64_t) width * cpp > UINT_MAX) 3130b180b5d1SVille Syrjälä return -ERANGE; 3131b180b5d1SVille Syrjälä 3132b180b5d1SVille Syrjälä if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) 3133b180b5d1SVille Syrjälä return -ERANGE; 3134b180b5d1SVille Syrjälä 3135b180b5d1SVille Syrjälä if (r->pitches[i] < width * cpp) { 31361aa1b11cSDave Airlie DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); 3137d1b45d5fSVille Syrjälä return -EINVAL; 3138d1b45d5fSVille Syrjälä } 3139e3eb3250SRob Clark 3140e3eb3250SRob Clark if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { 3141e3eb3250SRob Clark DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", 3142e3eb3250SRob Clark r->modifier[i], i); 3143e3eb3250SRob Clark return -EINVAL; 3144e3eb3250SRob Clark } 3145570655b0SRob Clark 3146570655b0SRob Clark /* modifier specific checks: */ 3147570655b0SRob Clark switch (r->modifier[i]) { 3148570655b0SRob Clark case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: 3149570655b0SRob Clark /* NOTE: the pitch restriction may be lifted later if it turns 3150570655b0SRob Clark * out that no hw has this restriction: 3151570655b0SRob Clark */ 3152570655b0SRob Clark if (r->pixel_format != DRM_FORMAT_NV12 || 3153570655b0SRob Clark width % 128 || height % 32 || 3154570655b0SRob Clark r->pitches[i] % 128) { 3155570655b0SRob Clark DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); 3156570655b0SRob Clark return -EINVAL; 3157570655b0SRob Clark } 3158570655b0SRob Clark break; 3159570655b0SRob Clark 3160570655b0SRob Clark default: 3161570655b0SRob Clark break; 3162570655b0SRob Clark } 3163d1b45d5fSVille Syrjälä } 3164d1b45d5fSVille Syrjälä 3165bbe16a40SDaniel Vetter for (i = num_planes; i < 4; i++) { 3166bbe16a40SDaniel Vetter if (r->modifier[i]) { 3167bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); 3168bbe16a40SDaniel Vetter return -EINVAL; 3169bbe16a40SDaniel Vetter } 3170bbe16a40SDaniel Vetter 3171bbe16a40SDaniel Vetter /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ 3172bbe16a40SDaniel Vetter if (!(r->flags & DRM_MODE_FB_MODIFIERS)) 3173bbe16a40SDaniel Vetter continue; 3174bbe16a40SDaniel Vetter 3175bbe16a40SDaniel Vetter if (r->handles[i]) { 3176bbe16a40SDaniel Vetter DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); 3177bbe16a40SDaniel Vetter return -EINVAL; 3178bbe16a40SDaniel Vetter } 3179bbe16a40SDaniel Vetter 3180bbe16a40SDaniel Vetter if (r->pitches[i]) { 3181bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); 3182bbe16a40SDaniel Vetter return -EINVAL; 3183bbe16a40SDaniel Vetter } 3184bbe16a40SDaniel Vetter 3185bbe16a40SDaniel Vetter if (r->offsets[i]) { 3186bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); 3187bbe16a40SDaniel Vetter return -EINVAL; 3188bbe16a40SDaniel Vetter } 3189bbe16a40SDaniel Vetter } 3190bbe16a40SDaniel Vetter 3191d1b45d5fSVille Syrjälä return 0; 3192d1b45d5fSVille Syrjälä } 3193d1b45d5fSVille Syrjälä 31949a6f5130SChris Wilson static struct drm_framebuffer * 31959a6f5130SChris Wilson internal_framebuffer_create(struct drm_device *dev, 3196c394c2b0SMatt Roper struct drm_mode_fb_cmd2 *r, 3197c394c2b0SMatt Roper struct drm_file *file_priv) 3198c394c2b0SMatt Roper { 3199c394c2b0SMatt Roper struct drm_mode_config *config = &dev->mode_config; 3200c394c2b0SMatt Roper struct drm_framebuffer *fb; 3201c394c2b0SMatt Roper int ret; 3202c394c2b0SMatt Roper 3203e3eb3250SRob Clark if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { 3204c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); 3205c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3206c394c2b0SMatt Roper } 3207c394c2b0SMatt Roper 3208c394c2b0SMatt Roper if ((config->min_width > r->width) || (r->width > config->max_width)) { 3209c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", 3210c394c2b0SMatt Roper r->width, config->min_width, config->max_width); 3211c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3212c394c2b0SMatt Roper } 3213c394c2b0SMatt Roper if ((config->min_height > r->height) || (r->height > config->max_height)) { 3214c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", 3215c394c2b0SMatt Roper r->height, config->min_height, config->max_height); 3216c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3217c394c2b0SMatt Roper } 3218c394c2b0SMatt Roper 3219e3eb3250SRob Clark if (r->flags & DRM_MODE_FB_MODIFIERS && 3220e3eb3250SRob Clark !dev->mode_config.allow_fb_modifiers) { 3221e3eb3250SRob Clark DRM_DEBUG_KMS("driver does not support fb modifiers\n"); 3222e3eb3250SRob Clark return ERR_PTR(-EINVAL); 3223e3eb3250SRob Clark } 3224e3eb3250SRob Clark 3225c394c2b0SMatt Roper ret = framebuffer_check(r); 3226c394c2b0SMatt Roper if (ret) 3227c394c2b0SMatt Roper return ERR_PTR(ret); 3228c394c2b0SMatt Roper 3229c394c2b0SMatt Roper fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); 3230c394c2b0SMatt Roper if (IS_ERR(fb)) { 3231c394c2b0SMatt Roper DRM_DEBUG_KMS("could not create framebuffer\n"); 3232c394c2b0SMatt Roper return fb; 3233c394c2b0SMatt Roper } 3234c394c2b0SMatt Roper 3235c394c2b0SMatt Roper return fb; 3236c394c2b0SMatt Roper } 3237c394c2b0SMatt Roper 3238308e5bcbSJesse Barnes /** 3239308e5bcbSJesse Barnes * drm_mode_addfb2 - add an FB to the graphics configuration 3240065a50edSDaniel Vetter * @dev: drm device for the ioctl 3241065a50edSDaniel Vetter * @data: data pointer for the ioctl 3242065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3243308e5bcbSJesse Barnes * 3244c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request with format. This is 3245c8e32cc1SDaniel Vetter * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers 3246c8e32cc1SDaniel Vetter * and uses fourcc codes as pixel format specifiers. 3247308e5bcbSJesse Barnes * 3248308e5bcbSJesse Barnes * Called by the user via ioctl. 3249308e5bcbSJesse Barnes * 3250c8e32cc1SDaniel Vetter * Returns: 32511a498633SDaniel Vetter * Zero on success, negative errno on failure. 3252308e5bcbSJesse Barnes */ 3253308e5bcbSJesse Barnes int drm_mode_addfb2(struct drm_device *dev, 3254308e5bcbSJesse Barnes void *data, struct drm_file *file_priv) 3255308e5bcbSJesse Barnes { 32569a6f5130SChris Wilson struct drm_mode_fb_cmd2 *r = data; 3257f453ba04SDave Airlie struct drm_framebuffer *fb; 3258f453ba04SDave Airlie 3259fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3260fb3b06c8SDave Airlie return -EINVAL; 3261fb3b06c8SDave Airlie 32629a6f5130SChris Wilson fb = internal_framebuffer_create(dev, r, file_priv); 3263c394c2b0SMatt Roper if (IS_ERR(fb)) 32644b096ac1SDaniel Vetter return PTR_ERR(fb); 3265f453ba04SDave Airlie 32669a6f5130SChris Wilson /* Transfer ownership to the filp for reaping on close */ 32679a6f5130SChris Wilson 32689a6f5130SChris Wilson DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 32699a6f5130SChris Wilson mutex_lock(&file_priv->fbs_lock); 32709a6f5130SChris Wilson r->fb_id = fb->base.id; 32719a6f5130SChris Wilson list_add(&fb->filp_head, &file_priv->fbs); 32729a6f5130SChris Wilson mutex_unlock(&file_priv->fbs_lock); 32739a6f5130SChris Wilson 3274c394c2b0SMatt Roper return 0; 3275f453ba04SDave Airlie } 3276f453ba04SDave Airlie 3277f453ba04SDave Airlie /** 3278f453ba04SDave Airlie * drm_mode_rmfb - remove an FB from the configuration 3279065a50edSDaniel Vetter * @dev: drm device for the ioctl 3280065a50edSDaniel Vetter * @data: data pointer for the ioctl 3281065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3282f453ba04SDave Airlie * 3283f453ba04SDave Airlie * Remove the FB specified by the user. 3284f453ba04SDave Airlie * 3285f453ba04SDave Airlie * Called by the user via ioctl. 3286f453ba04SDave Airlie * 3287c8e32cc1SDaniel Vetter * Returns: 32881a498633SDaniel Vetter * Zero on success, negative errno on failure. 3289f453ba04SDave Airlie */ 3290f453ba04SDave Airlie int drm_mode_rmfb(struct drm_device *dev, 3291f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3292f453ba04SDave Airlie { 3293f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 3294f453ba04SDave Airlie struct drm_framebuffer *fbl = NULL; 3295f453ba04SDave Airlie uint32_t *id = data; 3296f453ba04SDave Airlie int found = 0; 3297f453ba04SDave Airlie 3298fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3299fb3b06c8SDave Airlie return -EINVAL; 3300fb3b06c8SDave Airlie 33014b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 33022b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 33032b677e8cSDaniel Vetter fb = __drm_framebuffer_lookup(dev, *id); 33042b677e8cSDaniel Vetter if (!fb) 33052b677e8cSDaniel Vetter goto fail_lookup; 33062b677e8cSDaniel Vetter 3307f453ba04SDave Airlie list_for_each_entry(fbl, &file_priv->fbs, filp_head) 3308f453ba04SDave Airlie if (fb == fbl) 3309f453ba04SDave Airlie found = 1; 33102b677e8cSDaniel Vetter if (!found) 33112b677e8cSDaniel Vetter goto fail_lookup; 33122b677e8cSDaniel Vetter 33132b677e8cSDaniel Vetter /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ 33142b677e8cSDaniel Vetter __drm_framebuffer_unregister(dev, fb); 3315f453ba04SDave Airlie 33164b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 33172b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 33184b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 3319f453ba04SDave Airlie 33204b096ac1SDaniel Vetter drm_framebuffer_remove(fb); 33214b096ac1SDaniel Vetter 33222b677e8cSDaniel Vetter return 0; 33232b677e8cSDaniel Vetter 33242b677e8cSDaniel Vetter fail_lookup: 33252b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 33262b677e8cSDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 33272b677e8cSDaniel Vetter 332837c4e705SVille Syrjälä return -ENOENT; 3329f453ba04SDave Airlie } 3330f453ba04SDave Airlie 3331f453ba04SDave Airlie /** 3332f453ba04SDave Airlie * drm_mode_getfb - get FB info 3333065a50edSDaniel Vetter * @dev: drm device for the ioctl 3334065a50edSDaniel Vetter * @data: data pointer for the ioctl 3335065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3336f453ba04SDave Airlie * 3337f453ba04SDave Airlie * Lookup the FB given its ID and return info about it. 3338f453ba04SDave Airlie * 3339f453ba04SDave Airlie * Called by the user via ioctl. 3340f453ba04SDave Airlie * 3341c8e32cc1SDaniel Vetter * Returns: 33421a498633SDaniel Vetter * Zero on success, negative errno on failure. 3343f453ba04SDave Airlie */ 3344f453ba04SDave Airlie int drm_mode_getfb(struct drm_device *dev, 3345f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3346f453ba04SDave Airlie { 3347f453ba04SDave Airlie struct drm_mode_fb_cmd *r = data; 3348f453ba04SDave Airlie struct drm_framebuffer *fb; 334958c0dca1SDaniel Vetter int ret; 3350f453ba04SDave Airlie 3351fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3352fb3b06c8SDave Airlie return -EINVAL; 3353fb3b06c8SDave Airlie 3354786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, r->fb_id); 335558c0dca1SDaniel Vetter if (!fb) 335637c4e705SVille Syrjälä return -ENOENT; 3357f453ba04SDave Airlie 3358f453ba04SDave Airlie r->height = fb->height; 3359f453ba04SDave Airlie r->width = fb->width; 3360f453ba04SDave Airlie r->depth = fb->depth; 3361f453ba04SDave Airlie r->bpp = fb->bits_per_pixel; 336201f2c773SVille Syrjälä r->pitch = fb->pitches[0]; 3363101b96f3SDavid Herrmann if (fb->funcs->create_handle) { 336409f308f7SThomas Hellstrom if (file_priv->is_master || capable(CAP_SYS_ADMIN) || 336543683057SThomas Hellstrom drm_is_control_client(file_priv)) { 3366101b96f3SDavid Herrmann ret = fb->funcs->create_handle(fb, file_priv, 3367101b96f3SDavid Herrmann &r->handle); 3368101b96f3SDavid Herrmann } else { 3369101b96f3SDavid Herrmann /* GET_FB() is an unprivileged ioctl so we must not 3370101b96f3SDavid Herrmann * return a buffer-handle to non-master processes! For 3371101b96f3SDavid Herrmann * backwards-compatibility reasons, we cannot make 3372101b96f3SDavid Herrmann * GET_FB() privileged, so just return an invalid handle 3373101b96f3SDavid Herrmann * for non-masters. */ 3374101b96f3SDavid Herrmann r->handle = 0; 3375101b96f3SDavid Herrmann ret = 0; 3376101b96f3SDavid Herrmann } 3377101b96f3SDavid Herrmann } else { 3378af26ef3bSDaniel Vetter ret = -ENODEV; 3379101b96f3SDavid Herrmann } 3380f453ba04SDave Airlie 338158c0dca1SDaniel Vetter drm_framebuffer_unreference(fb); 338258c0dca1SDaniel Vetter 3383f453ba04SDave Airlie return ret; 3384f453ba04SDave Airlie } 3385f453ba04SDave Airlie 3386c8e32cc1SDaniel Vetter /** 3387c8e32cc1SDaniel Vetter * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB 3388c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3389c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3390c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3391c8e32cc1SDaniel Vetter * 3392c8e32cc1SDaniel Vetter * Lookup the FB and flush out the damaged area supplied by userspace as a clip 3393c8e32cc1SDaniel Vetter * rectangle list. Generic userspace which does frontbuffer rendering must call 3394c8e32cc1SDaniel Vetter * this ioctl to flush out the changes on manual-update display outputs, e.g. 3395c8e32cc1SDaniel Vetter * usb display-link, mipi manual update panels or edp panel self refresh modes. 3396c8e32cc1SDaniel Vetter * 3397c8e32cc1SDaniel Vetter * Modesetting drivers which always update the frontbuffer do not need to 3398c8e32cc1SDaniel Vetter * implement the corresponding ->dirty framebuffer callback. 3399c8e32cc1SDaniel Vetter * 3400c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3401c8e32cc1SDaniel Vetter * 3402c8e32cc1SDaniel Vetter * Returns: 34031a498633SDaniel Vetter * Zero on success, negative errno on failure. 3404c8e32cc1SDaniel Vetter */ 3405884840aaSJakob Bornecrantz int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 3406884840aaSJakob Bornecrantz void *data, struct drm_file *file_priv) 3407884840aaSJakob Bornecrantz { 3408884840aaSJakob Bornecrantz struct drm_clip_rect __user *clips_ptr; 3409884840aaSJakob Bornecrantz struct drm_clip_rect *clips = NULL; 3410884840aaSJakob Bornecrantz struct drm_mode_fb_dirty_cmd *r = data; 3411884840aaSJakob Bornecrantz struct drm_framebuffer *fb; 3412884840aaSJakob Bornecrantz unsigned flags; 3413884840aaSJakob Bornecrantz int num_clips; 34144a1b0714SLaurent Pinchart int ret; 3415884840aaSJakob Bornecrantz 3416fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3417fb3b06c8SDave Airlie return -EINVAL; 3418fb3b06c8SDave Airlie 3419786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, r->fb_id); 34204ccf097fSDaniel Vetter if (!fb) 342137c4e705SVille Syrjälä return -ENOENT; 3422884840aaSJakob Bornecrantz 3423884840aaSJakob Bornecrantz num_clips = r->num_clips; 342481f6c7f8SVille Syrjälä clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; 3425884840aaSJakob Bornecrantz 3426884840aaSJakob Bornecrantz if (!num_clips != !clips_ptr) { 3427884840aaSJakob Bornecrantz ret = -EINVAL; 3428884840aaSJakob Bornecrantz goto out_err1; 3429884840aaSJakob Bornecrantz } 3430884840aaSJakob Bornecrantz 3431884840aaSJakob Bornecrantz flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; 3432884840aaSJakob Bornecrantz 3433884840aaSJakob Bornecrantz /* If userspace annotates copy, clips must come in pairs */ 3434884840aaSJakob Bornecrantz if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { 3435884840aaSJakob Bornecrantz ret = -EINVAL; 3436884840aaSJakob Bornecrantz goto out_err1; 3437884840aaSJakob Bornecrantz } 3438884840aaSJakob Bornecrantz 3439884840aaSJakob Bornecrantz if (num_clips && clips_ptr) { 3440a5cd3351SXi Wang if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { 3441a5cd3351SXi Wang ret = -EINVAL; 3442a5cd3351SXi Wang goto out_err1; 3443a5cd3351SXi Wang } 3444bd3f0ff9SThierry Reding clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); 3445884840aaSJakob Bornecrantz if (!clips) { 3446884840aaSJakob Bornecrantz ret = -ENOMEM; 3447884840aaSJakob Bornecrantz goto out_err1; 3448884840aaSJakob Bornecrantz } 3449884840aaSJakob Bornecrantz 3450884840aaSJakob Bornecrantz ret = copy_from_user(clips, clips_ptr, 3451884840aaSJakob Bornecrantz num_clips * sizeof(*clips)); 3452e902a358SDan Carpenter if (ret) { 3453e902a358SDan Carpenter ret = -EFAULT; 3454884840aaSJakob Bornecrantz goto out_err2; 3455884840aaSJakob Bornecrantz } 3456e902a358SDan Carpenter } 3457884840aaSJakob Bornecrantz 3458884840aaSJakob Bornecrantz if (fb->funcs->dirty) { 345902b00162SThomas Hellstrom ret = fb->funcs->dirty(fb, file_priv, flags, r->color, 346002b00162SThomas Hellstrom clips, num_clips); 3461884840aaSJakob Bornecrantz } else { 3462884840aaSJakob Bornecrantz ret = -ENOSYS; 3463884840aaSJakob Bornecrantz } 3464884840aaSJakob Bornecrantz 3465884840aaSJakob Bornecrantz out_err2: 3466884840aaSJakob Bornecrantz kfree(clips); 3467884840aaSJakob Bornecrantz out_err1: 34684ccf097fSDaniel Vetter drm_framebuffer_unreference(fb); 34694ccf097fSDaniel Vetter 3470884840aaSJakob Bornecrantz return ret; 3471884840aaSJakob Bornecrantz } 3472884840aaSJakob Bornecrantz 3473884840aaSJakob Bornecrantz 3474f453ba04SDave Airlie /** 3475f453ba04SDave Airlie * drm_fb_release - remove and free the FBs on this file 3476065a50edSDaniel Vetter * @priv: drm file for the ioctl 3477f453ba04SDave Airlie * 3478f453ba04SDave Airlie * Destroy all the FBs associated with @filp. 3479f453ba04SDave Airlie * 3480f453ba04SDave Airlie * Called by the user via ioctl. 3481f453ba04SDave Airlie * 3482c8e32cc1SDaniel Vetter * Returns: 34831a498633SDaniel Vetter * Zero on success, negative errno on failure. 3484f453ba04SDave Airlie */ 3485ea39f835SKristian Høgsberg void drm_fb_release(struct drm_file *priv) 3486f453ba04SDave Airlie { 3487f453ba04SDave Airlie struct drm_device *dev = priv->minor->dev; 3488f453ba04SDave Airlie struct drm_framebuffer *fb, *tfb; 3489f453ba04SDave Airlie 34901b116297SDaniel Vetter /* 34911b116297SDaniel Vetter * When the file gets released that means no one else can access the fb 3492e2db726bSMartin Peres * list any more, so no need to grab fpriv->fbs_lock. And we need to 34931b116297SDaniel Vetter * avoid upsetting lockdep since the universal cursor code adds a 34941b116297SDaniel Vetter * framebuffer while holding mutex locks. 34951b116297SDaniel Vetter * 34961b116297SDaniel Vetter * Note that a real deadlock between fpriv->fbs_lock and the modeset 34971b116297SDaniel Vetter * locks is impossible here since no one else but this function can get 34981b116297SDaniel Vetter * at it any more. 34991b116297SDaniel Vetter */ 3500f453ba04SDave Airlie list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { 35012b677e8cSDaniel Vetter 35022b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 35032b677e8cSDaniel Vetter /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ 35042b677e8cSDaniel Vetter __drm_framebuffer_unregister(dev, fb); 35052b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 35062b677e8cSDaniel Vetter 35074b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 35082b677e8cSDaniel Vetter 35092b677e8cSDaniel Vetter /* This will also drop the fpriv->fbs reference. */ 3510f7eff60eSRob Clark drm_framebuffer_remove(fb); 3511f453ba04SDave Airlie } 3512f453ba04SDave Airlie } 3513f453ba04SDave Airlie 3514c8e32cc1SDaniel Vetter /** 3515c8e32cc1SDaniel Vetter * drm_property_create - create a new property type 3516c8e32cc1SDaniel Vetter * @dev: drm device 3517c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3518c8e32cc1SDaniel Vetter * @name: name of the property 3519c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3520c8e32cc1SDaniel Vetter * 3521c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3522c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3523c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3524c8e32cc1SDaniel Vetter * 35253b5b9932SDamien Lespiau * Note that the DRM core keeps a per-device list of properties and that, if 35263b5b9932SDamien Lespiau * drm_mode_config_cleanup() is called, it will destroy all properties created 35273b5b9932SDamien Lespiau * by the driver. 35283b5b9932SDamien Lespiau * 3529c8e32cc1SDaniel Vetter * Returns: 3530c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3531c8e32cc1SDaniel Vetter */ 3532f453ba04SDave Airlie struct drm_property *drm_property_create(struct drm_device *dev, int flags, 3533f453ba04SDave Airlie const char *name, int num_values) 3534f453ba04SDave Airlie { 3535f453ba04SDave Airlie struct drm_property *property = NULL; 35366bfc56aaSVille Syrjälä int ret; 3537f453ba04SDave Airlie 3538f453ba04SDave Airlie property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); 3539f453ba04SDave Airlie if (!property) 3540f453ba04SDave Airlie return NULL; 3541f453ba04SDave Airlie 354298f75de4SRob Clark property->dev = dev; 354398f75de4SRob Clark 3544f453ba04SDave Airlie if (num_values) { 3545bd3f0ff9SThierry Reding property->values = kcalloc(num_values, sizeof(uint64_t), 3546bd3f0ff9SThierry Reding GFP_KERNEL); 3547f453ba04SDave Airlie if (!property->values) 3548f453ba04SDave Airlie goto fail; 3549f453ba04SDave Airlie } 3550f453ba04SDave Airlie 35516bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); 35526bfc56aaSVille Syrjälä if (ret) 35536bfc56aaSVille Syrjälä goto fail; 35546bfc56aaSVille Syrjälä 3555f453ba04SDave Airlie property->flags = flags; 3556f453ba04SDave Airlie property->num_values = num_values; 35573758b341SDaniel Vetter INIT_LIST_HEAD(&property->enum_list); 3558f453ba04SDave Airlie 3559471dd2efSVinson Lee if (name) { 3560f453ba04SDave Airlie strncpy(property->name, name, DRM_PROP_NAME_LEN); 3561471dd2efSVinson Lee property->name[DRM_PROP_NAME_LEN-1] = '\0'; 3562471dd2efSVinson Lee } 3563f453ba04SDave Airlie 3564f453ba04SDave Airlie list_add_tail(&property->head, &dev->mode_config.property_list); 35655ea22f24SRob Clark 35665ea22f24SRob Clark WARN_ON(!drm_property_type_valid(property)); 35675ea22f24SRob Clark 3568f453ba04SDave Airlie return property; 3569f453ba04SDave Airlie fail: 35706bfc56aaSVille Syrjälä kfree(property->values); 3571f453ba04SDave Airlie kfree(property); 3572f453ba04SDave Airlie return NULL; 3573f453ba04SDave Airlie } 3574f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_create); 3575f453ba04SDave Airlie 3576c8e32cc1SDaniel Vetter /** 35772aa9d2bcSThierry Reding * drm_property_create_enum - create a new enumeration property type 3578c8e32cc1SDaniel Vetter * @dev: drm device 3579c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3580c8e32cc1SDaniel Vetter * @name: name of the property 3581c8e32cc1SDaniel Vetter * @props: enumeration lists with property values 3582c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3583c8e32cc1SDaniel Vetter * 3584c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3585c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3586c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3587c8e32cc1SDaniel Vetter * 3588c8e32cc1SDaniel Vetter * Userspace is only allowed to set one of the predefined values for enumeration 3589c8e32cc1SDaniel Vetter * properties. 3590c8e32cc1SDaniel Vetter * 3591c8e32cc1SDaniel Vetter * Returns: 3592c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3593c8e32cc1SDaniel Vetter */ 35944a67d391SSascha Hauer struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 35954a67d391SSascha Hauer const char *name, 35964a67d391SSascha Hauer const struct drm_prop_enum_list *props, 35974a67d391SSascha Hauer int num_values) 35984a67d391SSascha Hauer { 35994a67d391SSascha Hauer struct drm_property *property; 36004a67d391SSascha Hauer int i, ret; 36014a67d391SSascha Hauer 36024a67d391SSascha Hauer flags |= DRM_MODE_PROP_ENUM; 36034a67d391SSascha Hauer 36044a67d391SSascha Hauer property = drm_property_create(dev, flags, name, num_values); 36054a67d391SSascha Hauer if (!property) 36064a67d391SSascha Hauer return NULL; 36074a67d391SSascha Hauer 36084a67d391SSascha Hauer for (i = 0; i < num_values; i++) { 36094a67d391SSascha Hauer ret = drm_property_add_enum(property, i, 36104a67d391SSascha Hauer props[i].type, 36114a67d391SSascha Hauer props[i].name); 36124a67d391SSascha Hauer if (ret) { 36134a67d391SSascha Hauer drm_property_destroy(dev, property); 36144a67d391SSascha Hauer return NULL; 36154a67d391SSascha Hauer } 36164a67d391SSascha Hauer } 36174a67d391SSascha Hauer 36184a67d391SSascha Hauer return property; 36194a67d391SSascha Hauer } 36204a67d391SSascha Hauer EXPORT_SYMBOL(drm_property_create_enum); 36214a67d391SSascha Hauer 3622c8e32cc1SDaniel Vetter /** 36232aa9d2bcSThierry Reding * drm_property_create_bitmask - create a new bitmask property type 3624c8e32cc1SDaniel Vetter * @dev: drm device 3625c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3626c8e32cc1SDaniel Vetter * @name: name of the property 3627c8e32cc1SDaniel Vetter * @props: enumeration lists with property bitflags 3628295ee853SDaniel Vetter * @num_props: size of the @props array 3629295ee853SDaniel Vetter * @supported_bits: bitmask of all supported enumeration values 3630c8e32cc1SDaniel Vetter * 3631295ee853SDaniel Vetter * This creates a new bitmask drm property which can then be attached to a drm 3632c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3633c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3634c8e32cc1SDaniel Vetter * 3635c8e32cc1SDaniel Vetter * Compared to plain enumeration properties userspace is allowed to set any 3636c8e32cc1SDaniel Vetter * or'ed together combination of the predefined property bitflag values 3637c8e32cc1SDaniel Vetter * 3638c8e32cc1SDaniel Vetter * Returns: 3639c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3640c8e32cc1SDaniel Vetter */ 364149e27545SRob Clark struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 364249e27545SRob Clark int flags, const char *name, 364349e27545SRob Clark const struct drm_prop_enum_list *props, 36447689ffb3SVille Syrjälä int num_props, 36457689ffb3SVille Syrjälä uint64_t supported_bits) 364649e27545SRob Clark { 364749e27545SRob Clark struct drm_property *property; 36487689ffb3SVille Syrjälä int i, ret, index = 0; 36497689ffb3SVille Syrjälä int num_values = hweight64(supported_bits); 365049e27545SRob Clark 365149e27545SRob Clark flags |= DRM_MODE_PROP_BITMASK; 365249e27545SRob Clark 365349e27545SRob Clark property = drm_property_create(dev, flags, name, num_values); 365449e27545SRob Clark if (!property) 365549e27545SRob Clark return NULL; 36567689ffb3SVille Syrjälä for (i = 0; i < num_props; i++) { 36577689ffb3SVille Syrjälä if (!(supported_bits & (1ULL << props[i].type))) 36587689ffb3SVille Syrjälä continue; 365949e27545SRob Clark 36607689ffb3SVille Syrjälä if (WARN_ON(index >= num_values)) { 36617689ffb3SVille Syrjälä drm_property_destroy(dev, property); 36627689ffb3SVille Syrjälä return NULL; 36637689ffb3SVille Syrjälä } 36647689ffb3SVille Syrjälä 36657689ffb3SVille Syrjälä ret = drm_property_add_enum(property, index++, 366649e27545SRob Clark props[i].type, 366749e27545SRob Clark props[i].name); 366849e27545SRob Clark if (ret) { 366949e27545SRob Clark drm_property_destroy(dev, property); 367049e27545SRob Clark return NULL; 367149e27545SRob Clark } 367249e27545SRob Clark } 367349e27545SRob Clark 367449e27545SRob Clark return property; 367549e27545SRob Clark } 367649e27545SRob Clark EXPORT_SYMBOL(drm_property_create_bitmask); 367749e27545SRob Clark 3678ebc44cf3SRob Clark static struct drm_property *property_create_range(struct drm_device *dev, 3679ebc44cf3SRob Clark int flags, const char *name, 3680ebc44cf3SRob Clark uint64_t min, uint64_t max) 3681ebc44cf3SRob Clark { 3682ebc44cf3SRob Clark struct drm_property *property; 3683ebc44cf3SRob Clark 3684ebc44cf3SRob Clark property = drm_property_create(dev, flags, name, 2); 3685ebc44cf3SRob Clark if (!property) 3686ebc44cf3SRob Clark return NULL; 3687ebc44cf3SRob Clark 3688ebc44cf3SRob Clark property->values[0] = min; 3689ebc44cf3SRob Clark property->values[1] = max; 3690ebc44cf3SRob Clark 3691ebc44cf3SRob Clark return property; 3692ebc44cf3SRob Clark } 3693ebc44cf3SRob Clark 3694c8e32cc1SDaniel Vetter /** 3695960cd9d4SDaniel Vetter * drm_property_create_range - create a new unsigned ranged property type 3696c8e32cc1SDaniel Vetter * @dev: drm device 3697c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3698c8e32cc1SDaniel Vetter * @name: name of the property 3699c8e32cc1SDaniel Vetter * @min: minimum value of the property 3700c8e32cc1SDaniel Vetter * @max: maximum value of the property 3701c8e32cc1SDaniel Vetter * 3702c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3703c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3704c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3705c8e32cc1SDaniel Vetter * 3706960cd9d4SDaniel Vetter * Userspace is allowed to set any unsigned integer value in the (min, max) 3707960cd9d4SDaniel Vetter * range inclusive. 3708c8e32cc1SDaniel Vetter * 3709c8e32cc1SDaniel Vetter * Returns: 3710c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3711c8e32cc1SDaniel Vetter */ 3712d9bc3c02SSascha Hauer struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 3713d9bc3c02SSascha Hauer const char *name, 3714d9bc3c02SSascha Hauer uint64_t min, uint64_t max) 3715d9bc3c02SSascha Hauer { 3716ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, 3717ebc44cf3SRob Clark name, min, max); 3718d9bc3c02SSascha Hauer } 3719d9bc3c02SSascha Hauer EXPORT_SYMBOL(drm_property_create_range); 3720d9bc3c02SSascha Hauer 3721960cd9d4SDaniel Vetter /** 3722960cd9d4SDaniel Vetter * drm_property_create_signed_range - create a new signed ranged property type 3723960cd9d4SDaniel Vetter * @dev: drm device 3724960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3725960cd9d4SDaniel Vetter * @name: name of the property 3726960cd9d4SDaniel Vetter * @min: minimum value of the property 3727960cd9d4SDaniel Vetter * @max: maximum value of the property 3728960cd9d4SDaniel Vetter * 3729960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3730960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3731960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3732960cd9d4SDaniel Vetter * 3733960cd9d4SDaniel Vetter * Userspace is allowed to set any signed integer value in the (min, max) 3734960cd9d4SDaniel Vetter * range inclusive. 3735960cd9d4SDaniel Vetter * 3736960cd9d4SDaniel Vetter * Returns: 3737960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3738960cd9d4SDaniel Vetter */ 3739ebc44cf3SRob Clark struct drm_property *drm_property_create_signed_range(struct drm_device *dev, 3740ebc44cf3SRob Clark int flags, const char *name, 3741ebc44cf3SRob Clark int64_t min, int64_t max) 3742ebc44cf3SRob Clark { 3743ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, 3744ebc44cf3SRob Clark name, I642U64(min), I642U64(max)); 3745ebc44cf3SRob Clark } 3746ebc44cf3SRob Clark EXPORT_SYMBOL(drm_property_create_signed_range); 3747ebc44cf3SRob Clark 3748960cd9d4SDaniel Vetter /** 3749960cd9d4SDaniel Vetter * drm_property_create_object - create a new object property type 3750960cd9d4SDaniel Vetter * @dev: drm device 3751960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3752960cd9d4SDaniel Vetter * @name: name of the property 3753960cd9d4SDaniel Vetter * @type: object type from DRM_MODE_OBJECT_* defines 3754960cd9d4SDaniel Vetter * 3755960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3756960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3757960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3758960cd9d4SDaniel Vetter * 3759960cd9d4SDaniel Vetter * Userspace is only allowed to set this to any property value of the given 3760960cd9d4SDaniel Vetter * @type. Only useful for atomic properties, which is enforced. 3761960cd9d4SDaniel Vetter * 3762960cd9d4SDaniel Vetter * Returns: 3763960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3764960cd9d4SDaniel Vetter */ 376598f75de4SRob Clark struct drm_property *drm_property_create_object(struct drm_device *dev, 376698f75de4SRob Clark int flags, const char *name, uint32_t type) 376798f75de4SRob Clark { 376898f75de4SRob Clark struct drm_property *property; 376998f75de4SRob Clark 377098f75de4SRob Clark flags |= DRM_MODE_PROP_OBJECT; 377198f75de4SRob Clark 3772960cd9d4SDaniel Vetter if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) 3773960cd9d4SDaniel Vetter return NULL; 3774960cd9d4SDaniel Vetter 377598f75de4SRob Clark property = drm_property_create(dev, flags, name, 1); 377698f75de4SRob Clark if (!property) 377798f75de4SRob Clark return NULL; 377898f75de4SRob Clark 377998f75de4SRob Clark property->values[0] = type; 378098f75de4SRob Clark 378198f75de4SRob Clark return property; 378298f75de4SRob Clark } 378398f75de4SRob Clark EXPORT_SYMBOL(drm_property_create_object); 378498f75de4SRob Clark 3785c8e32cc1SDaniel Vetter /** 3786960cd9d4SDaniel Vetter * drm_property_create_bool - create a new boolean property type 3787960cd9d4SDaniel Vetter * @dev: drm device 3788960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3789960cd9d4SDaniel Vetter * @name: name of the property 3790960cd9d4SDaniel Vetter * 3791960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3792960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3793960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3794960cd9d4SDaniel Vetter * 3795960cd9d4SDaniel Vetter * This is implemented as a ranged property with only {0, 1} as valid values. 3796960cd9d4SDaniel Vetter * 3797960cd9d4SDaniel Vetter * Returns: 3798960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3799960cd9d4SDaniel Vetter */ 3800960cd9d4SDaniel Vetter struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, 3801960cd9d4SDaniel Vetter const char *name) 3802960cd9d4SDaniel Vetter { 3803960cd9d4SDaniel Vetter return drm_property_create_range(dev, flags, name, 0, 1); 3804960cd9d4SDaniel Vetter } 3805960cd9d4SDaniel Vetter EXPORT_SYMBOL(drm_property_create_bool); 3806960cd9d4SDaniel Vetter 3807960cd9d4SDaniel Vetter /** 3808c8e32cc1SDaniel Vetter * drm_property_add_enum - add a possible value to an enumeration property 3809c8e32cc1SDaniel Vetter * @property: enumeration property to change 3810c8e32cc1SDaniel Vetter * @index: index of the new enumeration 3811c8e32cc1SDaniel Vetter * @value: value of the new enumeration 3812c8e32cc1SDaniel Vetter * @name: symbolic name of the new enumeration 3813c8e32cc1SDaniel Vetter * 3814c8e32cc1SDaniel Vetter * This functions adds enumerations to a property. 3815c8e32cc1SDaniel Vetter * 3816c8e32cc1SDaniel Vetter * It's use is deprecated, drivers should use one of the more specific helpers 3817c8e32cc1SDaniel Vetter * to directly create the property with all enumerations already attached. 3818c8e32cc1SDaniel Vetter * 3819c8e32cc1SDaniel Vetter * Returns: 3820c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3821c8e32cc1SDaniel Vetter */ 3822f453ba04SDave Airlie int drm_property_add_enum(struct drm_property *property, int index, 3823f453ba04SDave Airlie uint64_t value, const char *name) 3824f453ba04SDave Airlie { 3825f453ba04SDave Airlie struct drm_property_enum *prop_enum; 3826f453ba04SDave Airlie 38275ea22f24SRob Clark if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 38285ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) 382949e27545SRob Clark return -EINVAL; 383049e27545SRob Clark 383149e27545SRob Clark /* 383249e27545SRob Clark * Bitmask enum properties have the additional constraint of values 383349e27545SRob Clark * from 0 to 63 383449e27545SRob Clark */ 38355ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && 38365ea22f24SRob Clark (value > 63)) 3837f453ba04SDave Airlie return -EINVAL; 3838f453ba04SDave Airlie 38393758b341SDaniel Vetter if (!list_empty(&property->enum_list)) { 38403758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 3841f453ba04SDave Airlie if (prop_enum->value == value) { 3842f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 3843f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 3844f453ba04SDave Airlie return 0; 3845f453ba04SDave Airlie } 3846f453ba04SDave Airlie } 3847f453ba04SDave Airlie } 3848f453ba04SDave Airlie 3849f453ba04SDave Airlie prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); 3850f453ba04SDave Airlie if (!prop_enum) 3851f453ba04SDave Airlie return -ENOMEM; 3852f453ba04SDave Airlie 3853f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 3854f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 3855f453ba04SDave Airlie prop_enum->value = value; 3856f453ba04SDave Airlie 3857f453ba04SDave Airlie property->values[index] = value; 38583758b341SDaniel Vetter list_add_tail(&prop_enum->head, &property->enum_list); 3859f453ba04SDave Airlie return 0; 3860f453ba04SDave Airlie } 3861f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_add_enum); 3862f453ba04SDave Airlie 3863c8e32cc1SDaniel Vetter /** 3864c8e32cc1SDaniel Vetter * drm_property_destroy - destroy a drm property 3865c8e32cc1SDaniel Vetter * @dev: drm device 3866c8e32cc1SDaniel Vetter * @property: property to destry 3867c8e32cc1SDaniel Vetter * 3868c8e32cc1SDaniel Vetter * This function frees a property including any attached resources like 3869c8e32cc1SDaniel Vetter * enumeration values. 3870c8e32cc1SDaniel Vetter */ 3871f453ba04SDave Airlie void drm_property_destroy(struct drm_device *dev, struct drm_property *property) 3872f453ba04SDave Airlie { 3873f453ba04SDave Airlie struct drm_property_enum *prop_enum, *pt; 3874f453ba04SDave Airlie 38753758b341SDaniel Vetter list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { 3876f453ba04SDave Airlie list_del(&prop_enum->head); 3877f453ba04SDave Airlie kfree(prop_enum); 3878f453ba04SDave Airlie } 3879f453ba04SDave Airlie 3880f453ba04SDave Airlie if (property->num_values) 3881f453ba04SDave Airlie kfree(property->values); 3882f453ba04SDave Airlie drm_mode_object_put(dev, &property->base); 3883f453ba04SDave Airlie list_del(&property->head); 3884f453ba04SDave Airlie kfree(property); 3885f453ba04SDave Airlie } 3886f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_destroy); 3887f453ba04SDave Airlie 3888c8e32cc1SDaniel Vetter /** 3889c8e32cc1SDaniel Vetter * drm_object_attach_property - attach a property to a modeset object 3890c8e32cc1SDaniel Vetter * @obj: drm modeset object 3891c8e32cc1SDaniel Vetter * @property: property to attach 3892c8e32cc1SDaniel Vetter * @init_val: initial value of the property 3893c8e32cc1SDaniel Vetter * 3894c8e32cc1SDaniel Vetter * This attaches the given property to the modeset object with the given initial 3895c8e32cc1SDaniel Vetter * value. Currently this function cannot fail since the properties are stored in 3896c8e32cc1SDaniel Vetter * a statically sized array. 3897c8e32cc1SDaniel Vetter */ 3898c543188aSPaulo Zanoni void drm_object_attach_property(struct drm_mode_object *obj, 3899c543188aSPaulo Zanoni struct drm_property *property, 3900c543188aSPaulo Zanoni uint64_t init_val) 3901c543188aSPaulo Zanoni { 39027f88a9beSPaulo Zanoni int count = obj->properties->count; 3903c543188aSPaulo Zanoni 39047f88a9beSPaulo Zanoni if (count == DRM_OBJECT_MAX_PROPERTY) { 39057f88a9beSPaulo Zanoni WARN(1, "Failed to attach object property (type: 0x%x). Please " 39067f88a9beSPaulo Zanoni "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " 39077f88a9beSPaulo Zanoni "you see this message on the same object type.\n", 39087f88a9beSPaulo Zanoni obj->type); 3909c543188aSPaulo Zanoni return; 3910c543188aSPaulo Zanoni } 3911c543188aSPaulo Zanoni 3912b17cd757SRob Clark obj->properties->properties[count] = property; 39137f88a9beSPaulo Zanoni obj->properties->values[count] = init_val; 39147f88a9beSPaulo Zanoni obj->properties->count++; 391588a48e29SRob Clark if (property->flags & DRM_MODE_PROP_ATOMIC) 391688a48e29SRob Clark obj->properties->atomic_count++; 3917c543188aSPaulo Zanoni } 3918c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_attach_property); 3919c543188aSPaulo Zanoni 3920c8e32cc1SDaniel Vetter /** 3921c8e32cc1SDaniel Vetter * drm_object_property_set_value - set the value of a property 3922c8e32cc1SDaniel Vetter * @obj: drm mode object to set property value for 3923c8e32cc1SDaniel Vetter * @property: property to set 3924c8e32cc1SDaniel Vetter * @val: value the property should be set to 3925c8e32cc1SDaniel Vetter * 3926c8e32cc1SDaniel Vetter * This functions sets a given property on a given object. This function only 3927c8e32cc1SDaniel Vetter * changes the software state of the property, it does not call into the 3928c8e32cc1SDaniel Vetter * driver's ->set_property callback. 3929c8e32cc1SDaniel Vetter * 3930c8e32cc1SDaniel Vetter * Returns: 3931c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3932c8e32cc1SDaniel Vetter */ 3933c543188aSPaulo Zanoni int drm_object_property_set_value(struct drm_mode_object *obj, 3934c543188aSPaulo Zanoni struct drm_property *property, uint64_t val) 3935c543188aSPaulo Zanoni { 3936c543188aSPaulo Zanoni int i; 3937c543188aSPaulo Zanoni 39387f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 3939b17cd757SRob Clark if (obj->properties->properties[i] == property) { 3940c543188aSPaulo Zanoni obj->properties->values[i] = val; 3941c543188aSPaulo Zanoni return 0; 3942c543188aSPaulo Zanoni } 3943c543188aSPaulo Zanoni } 3944c543188aSPaulo Zanoni 3945c543188aSPaulo Zanoni return -EINVAL; 3946c543188aSPaulo Zanoni } 3947c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_set_value); 3948c543188aSPaulo Zanoni 3949c8e32cc1SDaniel Vetter /** 3950c8e32cc1SDaniel Vetter * drm_object_property_get_value - retrieve the value of a property 3951c8e32cc1SDaniel Vetter * @obj: drm mode object to get property value from 3952c8e32cc1SDaniel Vetter * @property: property to retrieve 3953c8e32cc1SDaniel Vetter * @val: storage for the property value 3954c8e32cc1SDaniel Vetter * 3955c8e32cc1SDaniel Vetter * This function retrieves the softare state of the given property for the given 3956c8e32cc1SDaniel Vetter * property. Since there is no driver callback to retrieve the current property 3957c8e32cc1SDaniel Vetter * value this might be out of sync with the hardware, depending upon the driver 3958c8e32cc1SDaniel Vetter * and property. 3959c8e32cc1SDaniel Vetter * 3960c8e32cc1SDaniel Vetter * Returns: 3961c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3962c8e32cc1SDaniel Vetter */ 3963c543188aSPaulo Zanoni int drm_object_property_get_value(struct drm_mode_object *obj, 3964c543188aSPaulo Zanoni struct drm_property *property, uint64_t *val) 3965c543188aSPaulo Zanoni { 3966c543188aSPaulo Zanoni int i; 3967c543188aSPaulo Zanoni 396888a48e29SRob Clark /* read-only properties bypass atomic mechanism and still store 396988a48e29SRob Clark * their value in obj->properties->values[].. mostly to avoid 397088a48e29SRob Clark * having to deal w/ EDID and similar props in atomic paths: 397188a48e29SRob Clark */ 397288a48e29SRob Clark if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && 397388a48e29SRob Clark !(property->flags & DRM_MODE_PROP_IMMUTABLE)) 397488a48e29SRob Clark return drm_atomic_get_property(obj, property, val); 397588a48e29SRob Clark 39767f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 3977b17cd757SRob Clark if (obj->properties->properties[i] == property) { 3978c543188aSPaulo Zanoni *val = obj->properties->values[i]; 3979c543188aSPaulo Zanoni return 0; 3980c543188aSPaulo Zanoni } 3981c543188aSPaulo Zanoni } 3982c543188aSPaulo Zanoni 3983c543188aSPaulo Zanoni return -EINVAL; 3984c543188aSPaulo Zanoni } 3985c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_get_value); 3986c543188aSPaulo Zanoni 3987c8e32cc1SDaniel Vetter /** 39881a498633SDaniel Vetter * drm_mode_getproperty_ioctl - get the property metadata 3989c8e32cc1SDaniel Vetter * @dev: DRM device 3990c8e32cc1SDaniel Vetter * @data: ioctl data 3991c8e32cc1SDaniel Vetter * @file_priv: DRM file info 3992c8e32cc1SDaniel Vetter * 39931a498633SDaniel Vetter * This function retrieves the metadata for a given property, like the different 39941a498633SDaniel Vetter * possible values for an enum property or the limits for a range property. 39951a498633SDaniel Vetter * 39961a498633SDaniel Vetter * Blob properties are special 3997c8e32cc1SDaniel Vetter * 3998c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3999c8e32cc1SDaniel Vetter * 4000c8e32cc1SDaniel Vetter * Returns: 40011a498633SDaniel Vetter * Zero on success, negative errno on failure. 4002c8e32cc1SDaniel Vetter */ 4003f453ba04SDave Airlie int drm_mode_getproperty_ioctl(struct drm_device *dev, 4004f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4005f453ba04SDave Airlie { 4006f453ba04SDave Airlie struct drm_mode_get_property *out_resp = data; 4007f453ba04SDave Airlie struct drm_property *property; 4008f453ba04SDave Airlie int enum_count = 0; 4009f453ba04SDave Airlie int value_count = 0; 4010f453ba04SDave Airlie int ret = 0, i; 4011f453ba04SDave Airlie int copied; 4012f453ba04SDave Airlie struct drm_property_enum *prop_enum; 4013f453ba04SDave Airlie struct drm_mode_property_enum __user *enum_ptr; 4014f453ba04SDave Airlie uint64_t __user *values_ptr; 4015f453ba04SDave Airlie 4016fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4017fb3b06c8SDave Airlie return -EINVAL; 4018fb3b06c8SDave Airlie 401984849903SDaniel Vetter drm_modeset_lock_all(dev); 4020a2b34e22SRob Clark property = drm_property_find(dev, out_resp->prop_id); 4021a2b34e22SRob Clark if (!property) { 4022f27657f2SVille Syrjälä ret = -ENOENT; 4023f453ba04SDave Airlie goto done; 4024f453ba04SDave Airlie } 4025f453ba04SDave Airlie 40265ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 40275ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 40283758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) 4029f453ba04SDave Airlie enum_count++; 4030f453ba04SDave Airlie } 4031f453ba04SDave Airlie 4032f453ba04SDave Airlie value_count = property->num_values; 4033f453ba04SDave Airlie 4034f453ba04SDave Airlie strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); 4035f453ba04SDave Airlie out_resp->name[DRM_PROP_NAME_LEN-1] = 0; 4036f453ba04SDave Airlie out_resp->flags = property->flags; 4037f453ba04SDave Airlie 4038f453ba04SDave Airlie if ((out_resp->count_values >= value_count) && value_count) { 403981f6c7f8SVille Syrjälä values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; 4040f453ba04SDave Airlie for (i = 0; i < value_count; i++) { 4041f453ba04SDave Airlie if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { 4042f453ba04SDave Airlie ret = -EFAULT; 4043f453ba04SDave Airlie goto done; 4044f453ba04SDave Airlie } 4045f453ba04SDave Airlie } 4046f453ba04SDave Airlie } 4047f453ba04SDave Airlie out_resp->count_values = value_count; 4048f453ba04SDave Airlie 40495ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 40505ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 4051f453ba04SDave Airlie if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { 4052f453ba04SDave Airlie copied = 0; 405381f6c7f8SVille Syrjälä enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; 40543758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 4055f453ba04SDave Airlie 4056f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { 4057f453ba04SDave Airlie ret = -EFAULT; 4058f453ba04SDave Airlie goto done; 4059f453ba04SDave Airlie } 4060f453ba04SDave Airlie 4061f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].name, 4062f453ba04SDave Airlie &prop_enum->name, DRM_PROP_NAME_LEN)) { 4063f453ba04SDave Airlie ret = -EFAULT; 4064f453ba04SDave Airlie goto done; 4065f453ba04SDave Airlie } 4066f453ba04SDave Airlie copied++; 4067f453ba04SDave Airlie } 4068f453ba04SDave Airlie } 4069f453ba04SDave Airlie out_resp->count_enum_blobs = enum_count; 4070f453ba04SDave Airlie } 4071f453ba04SDave Airlie 40723758b341SDaniel Vetter /* 40733758b341SDaniel Vetter * NOTE: The idea seems to have been to use this to read all the blob 40743758b341SDaniel Vetter * property values. But nothing ever added them to the corresponding 40753758b341SDaniel Vetter * list, userspace always used the special-purpose get_blob ioctl to 40763758b341SDaniel Vetter * read the value for a blob property. It also doesn't make a lot of 40773758b341SDaniel Vetter * sense to return values here when everything else is just metadata for 40783758b341SDaniel Vetter * the property itself. 40793758b341SDaniel Vetter */ 40803758b341SDaniel Vetter if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 40813758b341SDaniel Vetter out_resp->count_enum_blobs = 0; 4082f453ba04SDave Airlie done: 408384849903SDaniel Vetter drm_modeset_unlock_all(dev); 4084f453ba04SDave Airlie return ret; 4085f453ba04SDave Airlie } 4086f453ba04SDave Airlie 408799531d9bSDaniel Stone /** 408899531d9bSDaniel Stone * drm_property_create_blob - Create new blob property 408999531d9bSDaniel Stone * 409099531d9bSDaniel Stone * Creates a new blob property for a specified DRM device, optionally 409199531d9bSDaniel Stone * copying data. 409299531d9bSDaniel Stone * 409399531d9bSDaniel Stone * @dev: DRM device to create property for 409499531d9bSDaniel Stone * @length: Length to allocate for blob data 409599531d9bSDaniel Stone * @data: If specified, copies data into blob 409610e8cb7eSDaniel Stone * 409710e8cb7eSDaniel Stone * Returns: 409810e8cb7eSDaniel Stone * New blob property with a single reference on success, or an ERR_PTR 409910e8cb7eSDaniel Stone * value on failure. 410099531d9bSDaniel Stone */ 41016bcacf51SDaniel Stone struct drm_property_blob * 4102ecbbe59bSThierry Reding drm_property_create_blob(struct drm_device *dev, size_t length, 410312e6cecdSThierry Reding const void *data) 4104f453ba04SDave Airlie { 4105f453ba04SDave Airlie struct drm_property_blob *blob; 41066bfc56aaSVille Syrjälä int ret; 4107f453ba04SDave Airlie 410899531d9bSDaniel Stone if (!length) 410910e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 4110f453ba04SDave Airlie 4111f453ba04SDave Airlie blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); 4112f453ba04SDave Airlie if (!blob) 411310e8cb7eSDaniel Stone return ERR_PTR(-ENOMEM); 4114f453ba04SDave Airlie 4115e2f5d2eaSDaniel Stone /* This must be explicitly initialised, so we can safely call list_del 4116e2f5d2eaSDaniel Stone * on it in the removal handler, even if it isn't in a file list. */ 4117e2f5d2eaSDaniel Stone INIT_LIST_HEAD(&blob->head_file); 4118f453ba04SDave Airlie blob->length = length; 41196bcacf51SDaniel Stone blob->dev = dev; 4120f453ba04SDave Airlie 412199531d9bSDaniel Stone if (data) 4122f453ba04SDave Airlie memcpy(blob->data, data, length); 4123f453ba04SDave Airlie 41248fb6e7a5SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 41258fb6e7a5SDaniel Stone 41268fb6e7a5SDaniel Stone ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); 41278fb6e7a5SDaniel Stone if (ret) { 41288fb6e7a5SDaniel Stone kfree(blob); 41298fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 413010e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 41318fb6e7a5SDaniel Stone } 41328fb6e7a5SDaniel Stone 41336bcacf51SDaniel Stone kref_init(&blob->refcount); 41346bcacf51SDaniel Stone 4135e2f5d2eaSDaniel Stone list_add_tail(&blob->head_global, 4136e2f5d2eaSDaniel Stone &dev->mode_config.property_blob_list); 41378fb6e7a5SDaniel Stone 41388fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 41398fb6e7a5SDaniel Stone 4140f453ba04SDave Airlie return blob; 4141f453ba04SDave Airlie } 41426bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_create_blob); 4143f453ba04SDave Airlie 41446bcacf51SDaniel Stone /** 41456bcacf51SDaniel Stone * drm_property_free_blob - Blob property destructor 41466bcacf51SDaniel Stone * 41476bcacf51SDaniel Stone * Internal free function for blob properties; must not be used directly. 41486bcacf51SDaniel Stone * 4149f102c16eSDaniel Stone * @kref: Reference 41506bcacf51SDaniel Stone */ 41516bcacf51SDaniel Stone static void drm_property_free_blob(struct kref *kref) 4152f453ba04SDave Airlie { 41536bcacf51SDaniel Stone struct drm_property_blob *blob = 41546bcacf51SDaniel Stone container_of(kref, struct drm_property_blob, refcount); 41556bcacf51SDaniel Stone 41566bcacf51SDaniel Stone WARN_ON(!mutex_is_locked(&blob->dev->mode_config.blob_lock)); 41576bcacf51SDaniel Stone 4158e2f5d2eaSDaniel Stone list_del(&blob->head_global); 4159e2f5d2eaSDaniel Stone list_del(&blob->head_file); 41606bcacf51SDaniel Stone drm_mode_object_put(blob->dev, &blob->base); 41618fb6e7a5SDaniel Stone 4162f453ba04SDave Airlie kfree(blob); 4163f453ba04SDave Airlie } 4164f453ba04SDave Airlie 4165c8e32cc1SDaniel Vetter /** 41666bcacf51SDaniel Stone * drm_property_unreference_blob - Unreference a blob property 41676bcacf51SDaniel Stone * 41686bcacf51SDaniel Stone * Drop a reference on a blob property. May free the object. 41696bcacf51SDaniel Stone * 4170f102c16eSDaniel Stone * @blob: Pointer to blob property 41716bcacf51SDaniel Stone */ 41726bcacf51SDaniel Stone void drm_property_unreference_blob(struct drm_property_blob *blob) 41736bcacf51SDaniel Stone { 41746bcacf51SDaniel Stone struct drm_device *dev; 41756bcacf51SDaniel Stone 41766bcacf51SDaniel Stone if (!blob) 41776bcacf51SDaniel Stone return; 41786bcacf51SDaniel Stone 41796bcacf51SDaniel Stone dev = blob->dev; 41806bcacf51SDaniel Stone 41816bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 41826bcacf51SDaniel Stone 41836bcacf51SDaniel Stone if (kref_put_mutex(&blob->refcount, drm_property_free_blob, 41846bcacf51SDaniel Stone &dev->mode_config.blob_lock)) 41856bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 41866bcacf51SDaniel Stone else 41876bcacf51SDaniel Stone might_lock(&dev->mode_config.blob_lock); 41886bcacf51SDaniel Stone } 41896bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_unreference_blob); 41906bcacf51SDaniel Stone 41916bcacf51SDaniel Stone /** 41926bcacf51SDaniel Stone * drm_property_unreference_blob_locked - Unreference a blob property with blob_lock held 41936bcacf51SDaniel Stone * 41946bcacf51SDaniel Stone * Drop a reference on a blob property. May free the object. This must be 41956bcacf51SDaniel Stone * called with blob_lock held. 41966bcacf51SDaniel Stone * 4197f102c16eSDaniel Stone * @blob: Pointer to blob property 41986bcacf51SDaniel Stone */ 41996bcacf51SDaniel Stone static void drm_property_unreference_blob_locked(struct drm_property_blob *blob) 42006bcacf51SDaniel Stone { 42016bcacf51SDaniel Stone if (!blob) 42026bcacf51SDaniel Stone return; 42036bcacf51SDaniel Stone 42046bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 42056bcacf51SDaniel Stone 42066bcacf51SDaniel Stone kref_put(&blob->refcount, drm_property_free_blob); 42076bcacf51SDaniel Stone } 42086bcacf51SDaniel Stone 42096bcacf51SDaniel Stone /** 4210e2f5d2eaSDaniel Stone * drm_property_destroy_user_blobs - destroy all blobs created by this client 4211e2f5d2eaSDaniel Stone * @dev: DRM device 4212e2f5d2eaSDaniel Stone * @file_priv: destroy all blobs owned by this file handle 4213e2f5d2eaSDaniel Stone */ 4214e2f5d2eaSDaniel Stone void drm_property_destroy_user_blobs(struct drm_device *dev, 4215e2f5d2eaSDaniel Stone struct drm_file *file_priv) 4216e2f5d2eaSDaniel Stone { 4217e2f5d2eaSDaniel Stone struct drm_property_blob *blob, *bt; 4218e2f5d2eaSDaniel Stone 4219e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4220e2f5d2eaSDaniel Stone 4221e2f5d2eaSDaniel Stone list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { 4222e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4223e2f5d2eaSDaniel Stone drm_property_unreference_blob_locked(blob); 4224e2f5d2eaSDaniel Stone } 4225e2f5d2eaSDaniel Stone 4226e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4227e2f5d2eaSDaniel Stone } 4228e2f5d2eaSDaniel Stone 4229e2f5d2eaSDaniel Stone /** 42306bcacf51SDaniel Stone * drm_property_reference_blob - Take a reference on an existing property 42316bcacf51SDaniel Stone * 42326bcacf51SDaniel Stone * Take a new reference on an existing blob property. 42336bcacf51SDaniel Stone * 4234f102c16eSDaniel Stone * @blob: Pointer to blob property 42356bcacf51SDaniel Stone */ 42366bcacf51SDaniel Stone struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) 42376bcacf51SDaniel Stone { 42386bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 42396bcacf51SDaniel Stone kref_get(&blob->refcount); 42406bcacf51SDaniel Stone return blob; 42416bcacf51SDaniel Stone } 42426bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_reference_blob); 42436bcacf51SDaniel Stone 42446bcacf51SDaniel Stone /* 42456bcacf51SDaniel Stone * Like drm_property_lookup_blob, but does not return an additional reference. 42466bcacf51SDaniel Stone * Must be called with blob_lock held. 42476bcacf51SDaniel Stone */ 42486bcacf51SDaniel Stone static struct drm_property_blob *__drm_property_lookup_blob(struct drm_device *dev, 42496bcacf51SDaniel Stone uint32_t id) 42506bcacf51SDaniel Stone { 42516bcacf51SDaniel Stone struct drm_mode_object *obj = NULL; 42526bcacf51SDaniel Stone struct drm_property_blob *blob; 42536bcacf51SDaniel Stone 42546bcacf51SDaniel Stone WARN_ON(!mutex_is_locked(&dev->mode_config.blob_lock)); 42556bcacf51SDaniel Stone 42566bcacf51SDaniel Stone mutex_lock(&dev->mode_config.idr_mutex); 42576bcacf51SDaniel Stone obj = idr_find(&dev->mode_config.crtc_idr, id); 42586bcacf51SDaniel Stone if (!obj || (obj->type != DRM_MODE_OBJECT_BLOB) || (obj->id != id)) 42596bcacf51SDaniel Stone blob = NULL; 42606bcacf51SDaniel Stone else 42616bcacf51SDaniel Stone blob = obj_to_blob(obj); 42626bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.idr_mutex); 42636bcacf51SDaniel Stone 4264f453ba04SDave Airlie return blob; 4265f453ba04SDave Airlie } 4266f453ba04SDave Airlie 42676bcacf51SDaniel Stone /** 42686bcacf51SDaniel Stone * drm_property_lookup_blob - look up a blob property and take a reference 42696bcacf51SDaniel Stone * @dev: drm device 42706bcacf51SDaniel Stone * @id: id of the blob property 42716bcacf51SDaniel Stone * 42726bcacf51SDaniel Stone * If successful, this takes an additional reference to the blob property. 42736bcacf51SDaniel Stone * callers need to make sure to eventually unreference the returned property 42746bcacf51SDaniel Stone * again, using @drm_property_unreference_blob. 42756bcacf51SDaniel Stone */ 42766bcacf51SDaniel Stone struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, 42776bcacf51SDaniel Stone uint32_t id) 4278f453ba04SDave Airlie { 42796bcacf51SDaniel Stone struct drm_property_blob *blob; 42806bcacf51SDaniel Stone 42816bcacf51SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 42826bcacf51SDaniel Stone blob = __drm_property_lookup_blob(dev, id); 42836bcacf51SDaniel Stone if (blob) { 42846bcacf51SDaniel Stone if (!kref_get_unless_zero(&blob->refcount)) 42856bcacf51SDaniel Stone blob = NULL; 42866bcacf51SDaniel Stone } 42876bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 42886bcacf51SDaniel Stone 42896bcacf51SDaniel Stone return blob; 42906bcacf51SDaniel Stone } 42916bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_lookup_blob); 42926bcacf51SDaniel Stone 42936bcacf51SDaniel Stone /** 4294d2ed3436SDaniel Stone * drm_property_replace_global_blob - atomically replace existing blob property 4295d2ed3436SDaniel Stone * @dev: drm device 4296d2ed3436SDaniel Stone * @replace: location of blob property pointer to be replaced 4297d2ed3436SDaniel Stone * @length: length of data for new blob, or 0 for no data 4298d2ed3436SDaniel Stone * @data: content for new blob, or NULL for no data 4299d2ed3436SDaniel Stone * @obj_holds_id: optional object for property holding blob ID 4300d2ed3436SDaniel Stone * @prop_holds_id: optional property holding blob ID 4301d2ed3436SDaniel Stone * @return 0 on success or error on failure 4302d2ed3436SDaniel Stone * 4303d2ed3436SDaniel Stone * This function will atomically replace a global property in the blob list, 4304d2ed3436SDaniel Stone * optionally updating a property which holds the ID of that property. It is 4305d2ed3436SDaniel Stone * guaranteed to be atomic: no caller will be allowed to see intermediate 4306d2ed3436SDaniel Stone * results, and either the entire operation will succeed and clean up the 4307d2ed3436SDaniel Stone * previous property, or it will fail and the state will be unchanged. 4308d2ed3436SDaniel Stone * 4309d2ed3436SDaniel Stone * If length is 0 or data is NULL, no new blob will be created, and the holding 4310d2ed3436SDaniel Stone * property, if specified, will be set to 0. 4311d2ed3436SDaniel Stone * 4312d2ed3436SDaniel Stone * Access to the replace pointer is assumed to be protected by the caller, e.g. 4313d2ed3436SDaniel Stone * by holding the relevant modesetting object lock for its parent. 4314d2ed3436SDaniel Stone * 4315d2ed3436SDaniel Stone * For example, a drm_connector has a 'PATH' property, which contains the ID 4316d2ed3436SDaniel Stone * of a blob property with the value of the MST path information. Calling this 4317d2ed3436SDaniel Stone * function with replace pointing to the connector's path_blob_ptr, length and 4318d2ed3436SDaniel Stone * data set for the new path information, obj_holds_id set to the connector's 4319d2ed3436SDaniel Stone * base object, and prop_holds_id set to the path property name, will perform 4320d2ed3436SDaniel Stone * a completely atomic update. The access to path_blob_ptr is protected by the 4321d2ed3436SDaniel Stone * caller holding a lock on the connector. 4322d2ed3436SDaniel Stone */ 4323d2ed3436SDaniel Stone static int drm_property_replace_global_blob(struct drm_device *dev, 4324d2ed3436SDaniel Stone struct drm_property_blob **replace, 4325d2ed3436SDaniel Stone size_t length, 4326d2ed3436SDaniel Stone const void *data, 4327d2ed3436SDaniel Stone struct drm_mode_object *obj_holds_id, 4328d2ed3436SDaniel Stone struct drm_property *prop_holds_id) 4329d2ed3436SDaniel Stone { 4330d2ed3436SDaniel Stone struct drm_property_blob *new_blob = NULL; 4331d2ed3436SDaniel Stone struct drm_property_blob *old_blob = NULL; 4332d2ed3436SDaniel Stone int ret; 4333d2ed3436SDaniel Stone 4334d2ed3436SDaniel Stone WARN_ON(replace == NULL); 4335d2ed3436SDaniel Stone 4336d2ed3436SDaniel Stone old_blob = *replace; 4337d2ed3436SDaniel Stone 4338d2ed3436SDaniel Stone if (length && data) { 4339d2ed3436SDaniel Stone new_blob = drm_property_create_blob(dev, length, data); 434010e8cb7eSDaniel Stone if (IS_ERR(new_blob)) 434110e8cb7eSDaniel Stone return PTR_ERR(new_blob); 4342d2ed3436SDaniel Stone } 4343d2ed3436SDaniel Stone 4344d2ed3436SDaniel Stone /* This does not need to be synchronised with blob_lock, as the 4345d2ed3436SDaniel Stone * get_properties ioctl locks all modesetting objects, and 4346d2ed3436SDaniel Stone * obj_holds_id must be locked before calling here, so we cannot 4347d2ed3436SDaniel Stone * have its value out of sync with the list membership modified 4348d2ed3436SDaniel Stone * below under blob_lock. */ 4349d2ed3436SDaniel Stone if (obj_holds_id) { 4350d2ed3436SDaniel Stone ret = drm_object_property_set_value(obj_holds_id, 4351d2ed3436SDaniel Stone prop_holds_id, 4352d2ed3436SDaniel Stone new_blob ? 4353d2ed3436SDaniel Stone new_blob->base.id : 0); 4354d2ed3436SDaniel Stone if (ret != 0) 4355d2ed3436SDaniel Stone goto err_created; 4356d2ed3436SDaniel Stone } 4357d2ed3436SDaniel Stone 43586bcacf51SDaniel Stone drm_property_unreference_blob(old_blob); 4359d2ed3436SDaniel Stone *replace = new_blob; 4360d2ed3436SDaniel Stone 4361d2ed3436SDaniel Stone return 0; 4362d2ed3436SDaniel Stone 4363d2ed3436SDaniel Stone err_created: 43646bcacf51SDaniel Stone drm_property_unreference_blob(new_blob); 4365d2ed3436SDaniel Stone return ret; 4366f453ba04SDave Airlie } 4367f453ba04SDave Airlie 4368c8e32cc1SDaniel Vetter /** 4369c8e32cc1SDaniel Vetter * drm_mode_getblob_ioctl - get the contents of a blob property value 4370c8e32cc1SDaniel Vetter * @dev: DRM device 4371c8e32cc1SDaniel Vetter * @data: ioctl data 4372c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4373c8e32cc1SDaniel Vetter * 4374c8e32cc1SDaniel Vetter * This function retrieves the contents of a blob property. The value stored in 4375c8e32cc1SDaniel Vetter * an object's blob property is just a normal modeset object id. 4376c8e32cc1SDaniel Vetter * 4377c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4378c8e32cc1SDaniel Vetter * 4379c8e32cc1SDaniel Vetter * Returns: 43801a498633SDaniel Vetter * Zero on success, negative errno on failure. 4381c8e32cc1SDaniel Vetter */ 4382f453ba04SDave Airlie int drm_mode_getblob_ioctl(struct drm_device *dev, 4383f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4384f453ba04SDave Airlie { 4385f453ba04SDave Airlie struct drm_mode_get_blob *out_resp = data; 4386f453ba04SDave Airlie struct drm_property_blob *blob; 4387f453ba04SDave Airlie int ret = 0; 438881f6c7f8SVille Syrjälä void __user *blob_ptr; 4389f453ba04SDave Airlie 4390fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4391fb3b06c8SDave Airlie return -EINVAL; 4392fb3b06c8SDave Airlie 439384849903SDaniel Vetter drm_modeset_lock_all(dev); 43948fb6e7a5SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 43956bcacf51SDaniel Stone blob = __drm_property_lookup_blob(dev, out_resp->blob_id); 4396a2b34e22SRob Clark if (!blob) { 4397f27657f2SVille Syrjälä ret = -ENOENT; 4398f453ba04SDave Airlie goto done; 4399f453ba04SDave Airlie } 4400f453ba04SDave Airlie 4401f453ba04SDave Airlie if (out_resp->length == blob->length) { 440281f6c7f8SVille Syrjälä blob_ptr = (void __user *)(unsigned long)out_resp->data; 4403f453ba04SDave Airlie if (copy_to_user(blob_ptr, blob->data, blob->length)) { 4404f453ba04SDave Airlie ret = -EFAULT; 4405f453ba04SDave Airlie goto done; 4406f453ba04SDave Airlie } 4407f453ba04SDave Airlie } 4408f453ba04SDave Airlie out_resp->length = blob->length; 4409f453ba04SDave Airlie 4410f453ba04SDave Airlie done: 44118fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 441284849903SDaniel Vetter drm_modeset_unlock_all(dev); 4413f453ba04SDave Airlie return ret; 4414f453ba04SDave Airlie } 4415f453ba04SDave Airlie 4416cc7096fbSDave Airlie /** 4417e2f5d2eaSDaniel Stone * drm_mode_createblob_ioctl - create a new blob property 4418e2f5d2eaSDaniel Stone * @dev: DRM device 4419e2f5d2eaSDaniel Stone * @data: ioctl data 4420e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4421e2f5d2eaSDaniel Stone * 4422e2f5d2eaSDaniel Stone * This function creates a new blob property with user-defined values. In order 4423e2f5d2eaSDaniel Stone * to give us sensible validation and checking when creating, rather than at 4424e2f5d2eaSDaniel Stone * every potential use, we also require a type to be provided upfront. 4425e2f5d2eaSDaniel Stone * 4426e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4427e2f5d2eaSDaniel Stone * 4428e2f5d2eaSDaniel Stone * Returns: 4429e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4430e2f5d2eaSDaniel Stone */ 4431e2f5d2eaSDaniel Stone int drm_mode_createblob_ioctl(struct drm_device *dev, 4432e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4433e2f5d2eaSDaniel Stone { 4434e2f5d2eaSDaniel Stone struct drm_mode_create_blob *out_resp = data; 4435e2f5d2eaSDaniel Stone struct drm_property_blob *blob; 4436e2f5d2eaSDaniel Stone void __user *blob_ptr; 4437e2f5d2eaSDaniel Stone int ret = 0; 4438e2f5d2eaSDaniel Stone 4439e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4440e2f5d2eaSDaniel Stone return -EINVAL; 4441e2f5d2eaSDaniel Stone 4442e2f5d2eaSDaniel Stone blob = drm_property_create_blob(dev, out_resp->length, NULL); 4443e2f5d2eaSDaniel Stone if (IS_ERR(blob)) 4444e2f5d2eaSDaniel Stone return PTR_ERR(blob); 4445e2f5d2eaSDaniel Stone 4446e2f5d2eaSDaniel Stone blob_ptr = (void __user *)(unsigned long)out_resp->data; 4447e2f5d2eaSDaniel Stone if (copy_from_user(blob->data, blob_ptr, out_resp->length)) { 4448e2f5d2eaSDaniel Stone ret = -EFAULT; 4449e2f5d2eaSDaniel Stone goto out_blob; 4450e2f5d2eaSDaniel Stone } 4451e2f5d2eaSDaniel Stone 4452e2f5d2eaSDaniel Stone /* Dropping the lock between create_blob and our access here is safe 4453e2f5d2eaSDaniel Stone * as only the same file_priv can remove the blob; at this point, it is 4454e2f5d2eaSDaniel Stone * not associated with any file_priv. */ 4455e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4456e2f5d2eaSDaniel Stone out_resp->blob_id = blob->base.id; 4457e2f5d2eaSDaniel Stone list_add_tail(&file_priv->blobs, &blob->head_file); 4458e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4459e2f5d2eaSDaniel Stone 4460e2f5d2eaSDaniel Stone return 0; 4461e2f5d2eaSDaniel Stone 4462e2f5d2eaSDaniel Stone out_blob: 4463e2f5d2eaSDaniel Stone drm_property_unreference_blob(blob); 4464e2f5d2eaSDaniel Stone return ret; 4465e2f5d2eaSDaniel Stone } 4466e2f5d2eaSDaniel Stone 4467e2f5d2eaSDaniel Stone /** 4468e2f5d2eaSDaniel Stone * drm_mode_destroyblob_ioctl - destroy a user blob property 4469e2f5d2eaSDaniel Stone * @dev: DRM device 4470e2f5d2eaSDaniel Stone * @data: ioctl data 4471e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4472e2f5d2eaSDaniel Stone * 4473e2f5d2eaSDaniel Stone * Destroy an existing user-defined blob property. 4474e2f5d2eaSDaniel Stone * 4475e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4476e2f5d2eaSDaniel Stone * 4477e2f5d2eaSDaniel Stone * Returns: 4478e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4479e2f5d2eaSDaniel Stone */ 4480e2f5d2eaSDaniel Stone int drm_mode_destroyblob_ioctl(struct drm_device *dev, 4481e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4482e2f5d2eaSDaniel Stone { 4483e2f5d2eaSDaniel Stone struct drm_mode_destroy_blob *out_resp = data; 4484e2f5d2eaSDaniel Stone struct drm_property_blob *blob = NULL, *bt; 4485e2f5d2eaSDaniel Stone bool found = false; 4486e2f5d2eaSDaniel Stone int ret = 0; 4487e2f5d2eaSDaniel Stone 4488e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4489e2f5d2eaSDaniel Stone return -EINVAL; 4490e2f5d2eaSDaniel Stone 4491e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4492e2f5d2eaSDaniel Stone blob = __drm_property_lookup_blob(dev, out_resp->blob_id); 4493e2f5d2eaSDaniel Stone if (!blob) { 4494e2f5d2eaSDaniel Stone ret = -ENOENT; 4495e2f5d2eaSDaniel Stone goto err; 4496e2f5d2eaSDaniel Stone } 4497e2f5d2eaSDaniel Stone 4498e2f5d2eaSDaniel Stone /* Ensure the property was actually created by this user. */ 4499e2f5d2eaSDaniel Stone list_for_each_entry(bt, &file_priv->blobs, head_file) { 4500e2f5d2eaSDaniel Stone if (bt == blob) { 4501e2f5d2eaSDaniel Stone found = true; 4502e2f5d2eaSDaniel Stone break; 4503e2f5d2eaSDaniel Stone } 4504e2f5d2eaSDaniel Stone } 4505e2f5d2eaSDaniel Stone 4506e2f5d2eaSDaniel Stone if (!found) { 4507e2f5d2eaSDaniel Stone ret = -EPERM; 4508e2f5d2eaSDaniel Stone goto err; 4509e2f5d2eaSDaniel Stone } 4510e2f5d2eaSDaniel Stone 4511e2f5d2eaSDaniel Stone /* We must drop head_file here, because we may not be the last 4512e2f5d2eaSDaniel Stone * reference on the blob. */ 4513e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4514e2f5d2eaSDaniel Stone drm_property_unreference_blob_locked(blob); 4515e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4516e2f5d2eaSDaniel Stone 4517e2f5d2eaSDaniel Stone return 0; 4518e2f5d2eaSDaniel Stone 4519e2f5d2eaSDaniel Stone err: 4520e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4521e2f5d2eaSDaniel Stone return ret; 4522e2f5d2eaSDaniel Stone } 4523e2f5d2eaSDaniel Stone 4524e2f5d2eaSDaniel Stone /** 4525cc7096fbSDave Airlie * drm_mode_connector_set_path_property - set tile property on connector 4526cc7096fbSDave Airlie * @connector: connector to set property on. 4527d2ed3436SDaniel Stone * @path: path to use for property; must not be NULL. 4528cc7096fbSDave Airlie * 4529cc7096fbSDave Airlie * This creates a property to expose to userspace to specify a 4530cc7096fbSDave Airlie * connector path. This is mainly used for DisplayPort MST where 4531cc7096fbSDave Airlie * connectors have a topology and we want to allow userspace to give 4532cc7096fbSDave Airlie * them more meaningful names. 4533cc7096fbSDave Airlie * 4534cc7096fbSDave Airlie * Returns: 45351a498633SDaniel Vetter * Zero on success, negative errno on failure. 4536cc7096fbSDave Airlie */ 453743aba7ebSDave Airlie int drm_mode_connector_set_path_property(struct drm_connector *connector, 453812e6cecdSThierry Reding const char *path) 453943aba7ebSDave Airlie { 454043aba7ebSDave Airlie struct drm_device *dev = connector->dev; 4541ecbbe59bSThierry Reding int ret; 454243aba7ebSDave Airlie 4543d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4544d2ed3436SDaniel Stone &connector->path_blob_ptr, 4545d2ed3436SDaniel Stone strlen(path) + 1, 4546d2ed3436SDaniel Stone path, 4547d2ed3436SDaniel Stone &connector->base, 4548d2ed3436SDaniel Stone dev->mode_config.path_property); 454943aba7ebSDave Airlie return ret; 455043aba7ebSDave Airlie } 455143aba7ebSDave Airlie EXPORT_SYMBOL(drm_mode_connector_set_path_property); 455243aba7ebSDave Airlie 4553c8e32cc1SDaniel Vetter /** 45546f134d7bSDave Airlie * drm_mode_connector_set_tile_property - set tile property on connector 45556f134d7bSDave Airlie * @connector: connector to set property on. 45566f134d7bSDave Airlie * 45576f134d7bSDave Airlie * This looks up the tile information for a connector, and creates a 45586f134d7bSDave Airlie * property for userspace to parse if it exists. The property is of 45596f134d7bSDave Airlie * the form of 8 integers using ':' as a separator. 45606f134d7bSDave Airlie * 45616f134d7bSDave Airlie * Returns: 45626f134d7bSDave Airlie * Zero on success, errno on failure. 45636f134d7bSDave Airlie */ 45646f134d7bSDave Airlie int drm_mode_connector_set_tile_property(struct drm_connector *connector) 45656f134d7bSDave Airlie { 45666f134d7bSDave Airlie struct drm_device *dev = connector->dev; 45676f134d7bSDave Airlie char tile[256]; 4568d2ed3436SDaniel Stone int ret; 45696f134d7bSDave Airlie 45706f134d7bSDave Airlie if (!connector->has_tile) { 4571d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4572d2ed3436SDaniel Stone &connector->tile_blob_ptr, 4573d2ed3436SDaniel Stone 0, 4574d2ed3436SDaniel Stone NULL, 4575d2ed3436SDaniel Stone &connector->base, 4576d2ed3436SDaniel Stone dev->mode_config.tile_property); 45776f134d7bSDave Airlie return ret; 45786f134d7bSDave Airlie } 45796f134d7bSDave Airlie 45806f134d7bSDave Airlie snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", 45816f134d7bSDave Airlie connector->tile_group->id, connector->tile_is_single_monitor, 45826f134d7bSDave Airlie connector->num_h_tile, connector->num_v_tile, 45836f134d7bSDave Airlie connector->tile_h_loc, connector->tile_v_loc, 45846f134d7bSDave Airlie connector->tile_h_size, connector->tile_v_size); 45856f134d7bSDave Airlie 4586d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4587d2ed3436SDaniel Stone &connector->tile_blob_ptr, 4588d2ed3436SDaniel Stone strlen(tile) + 1, 4589d2ed3436SDaniel Stone tile, 4590d2ed3436SDaniel Stone &connector->base, 4591d2ed3436SDaniel Stone dev->mode_config.tile_property); 45926f134d7bSDave Airlie return ret; 45936f134d7bSDave Airlie } 45946f134d7bSDave Airlie EXPORT_SYMBOL(drm_mode_connector_set_tile_property); 45956f134d7bSDave Airlie 45966f134d7bSDave Airlie /** 4597c8e32cc1SDaniel Vetter * drm_mode_connector_update_edid_property - update the edid property of a connector 4598c8e32cc1SDaniel Vetter * @connector: drm connector 4599c8e32cc1SDaniel Vetter * @edid: new value of the edid property 4600c8e32cc1SDaniel Vetter * 4601c8e32cc1SDaniel Vetter * This function creates a new blob modeset object and assigns its id to the 4602c8e32cc1SDaniel Vetter * connector's edid property. 4603c8e32cc1SDaniel Vetter * 4604c8e32cc1SDaniel Vetter * Returns: 46051a498633SDaniel Vetter * Zero on success, negative errno on failure. 4606c8e32cc1SDaniel Vetter */ 4607f453ba04SDave Airlie int drm_mode_connector_update_edid_property(struct drm_connector *connector, 460812e6cecdSThierry Reding const struct edid *edid) 4609f453ba04SDave Airlie { 4610f453ba04SDave Airlie struct drm_device *dev = connector->dev; 4611d2ed3436SDaniel Stone size_t size = 0; 4612ecbbe59bSThierry Reding int ret; 4613f453ba04SDave Airlie 46144cf2b281SThomas Wood /* ignore requests to set edid when overridden */ 46154cf2b281SThomas Wood if (connector->override_edid) 46164cf2b281SThomas Wood return 0; 46174cf2b281SThomas Wood 4618d2ed3436SDaniel Stone if (edid) 4619e24ff467SShixin Zeng size = EDID_LENGTH * (1 + edid->extensions); 4620f453ba04SDave Airlie 4621d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4622d2ed3436SDaniel Stone &connector->edid_blob_ptr, 4623d2ed3436SDaniel Stone size, 4624d2ed3436SDaniel Stone edid, 4625d2ed3436SDaniel Stone &connector->base, 4626d2ed3436SDaniel Stone dev->mode_config.edid_property); 4627f453ba04SDave Airlie return ret; 4628f453ba04SDave Airlie } 4629f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_connector_update_edid_property); 4630f453ba04SDave Airlie 46313843e71fSRob Clark /* Some properties could refer to dynamic refcnt'd objects, or things that 46323843e71fSRob Clark * need special locking to handle lifetime issues (ie. to ensure the prop 46333843e71fSRob Clark * value doesn't become invalid part way through the property update due to 46343843e71fSRob Clark * race). The value returned by reference via 'obj' should be passed back 46353843e71fSRob Clark * to drm_property_change_valid_put() after the property is set (and the 46363843e71fSRob Clark * object to which the property is attached has a chance to take it's own 46373843e71fSRob Clark * reference). 46383843e71fSRob Clark */ 4639d34f20d6SRob Clark bool drm_property_change_valid_get(struct drm_property *property, 46403843e71fSRob Clark uint64_t value, struct drm_mode_object **ref) 464126a34815SPaulo Zanoni { 46422ca651d1SThierry Reding int i; 46432ca651d1SThierry Reding 464426a34815SPaulo Zanoni if (property->flags & DRM_MODE_PROP_IMMUTABLE) 464526a34815SPaulo Zanoni return false; 46465ea22f24SRob Clark 46473843e71fSRob Clark *ref = NULL; 46483843e71fSRob Clark 46495ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { 465026a34815SPaulo Zanoni if (value < property->values[0] || value > property->values[1]) 465126a34815SPaulo Zanoni return false; 465226a34815SPaulo Zanoni return true; 4653ebc44cf3SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { 4654ebc44cf3SRob Clark int64_t svalue = U642I64(value); 46554dfd909fSThierry Reding 4656ebc44cf3SRob Clark if (svalue < U642I64(property->values[0]) || 4657ebc44cf3SRob Clark svalue > U642I64(property->values[1])) 4658ebc44cf3SRob Clark return false; 4659ebc44cf3SRob Clark return true; 46605ea22f24SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 4661592c20eeSVille Syrjälä uint64_t valid_mask = 0; 46624dfd909fSThierry Reding 466349e27545SRob Clark for (i = 0; i < property->num_values; i++) 466449e27545SRob Clark valid_mask |= (1ULL << property->values[i]); 466549e27545SRob Clark return !(value & ~valid_mask); 46665ea22f24SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { 46676bcacf51SDaniel Stone struct drm_property_blob *blob; 46686bcacf51SDaniel Stone 46696bcacf51SDaniel Stone if (value == 0) 4670c4a56750SVille Syrjälä return true; 46716bcacf51SDaniel Stone 46726bcacf51SDaniel Stone blob = drm_property_lookup_blob(property->dev, value); 46736bcacf51SDaniel Stone if (blob) { 46746bcacf51SDaniel Stone *ref = &blob->base; 46756bcacf51SDaniel Stone return true; 46766bcacf51SDaniel Stone } else { 46776bcacf51SDaniel Stone return false; 46786bcacf51SDaniel Stone } 467998f75de4SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { 468098f75de4SRob Clark /* a zero value for an object property translates to null: */ 468198f75de4SRob Clark if (value == 0) 468298f75de4SRob Clark return true; 46833843e71fSRob Clark 46843843e71fSRob Clark /* handle refcnt'd objects specially: */ 46853843e71fSRob Clark if (property->values[0] == DRM_MODE_OBJECT_FB) { 46863843e71fSRob Clark struct drm_framebuffer *fb; 46873843e71fSRob Clark fb = drm_framebuffer_lookup(property->dev, value); 46883843e71fSRob Clark if (fb) { 46893843e71fSRob Clark *ref = &fb->base; 46903843e71fSRob Clark return true; 46913843e71fSRob Clark } else { 46923843e71fSRob Clark return false; 46933843e71fSRob Clark } 46943843e71fSRob Clark } else { 46953843e71fSRob Clark return _object_find(property->dev, value, property->values[0]) != NULL; 46963843e71fSRob Clark } 46972ca651d1SThierry Reding } 46982ca651d1SThierry Reding 469926a34815SPaulo Zanoni for (i = 0; i < property->num_values; i++) 470026a34815SPaulo Zanoni if (property->values[i] == value) 470126a34815SPaulo Zanoni return true; 470226a34815SPaulo Zanoni return false; 470326a34815SPaulo Zanoni } 470426a34815SPaulo Zanoni 4705d34f20d6SRob Clark void drm_property_change_valid_put(struct drm_property *property, 47063843e71fSRob Clark struct drm_mode_object *ref) 47073843e71fSRob Clark { 47083843e71fSRob Clark if (!ref) 47093843e71fSRob Clark return; 47103843e71fSRob Clark 47113843e71fSRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { 47123843e71fSRob Clark if (property->values[0] == DRM_MODE_OBJECT_FB) 47133843e71fSRob Clark drm_framebuffer_unreference(obj_to_fb(ref)); 4714da9b2a38SDaniel Stone } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 4715da9b2a38SDaniel Stone drm_property_unreference_blob(obj_to_blob(ref)); 47163843e71fSRob Clark } 47173843e71fSRob Clark 4718c8e32cc1SDaniel Vetter /** 4719c8e32cc1SDaniel Vetter * drm_mode_connector_property_set_ioctl - set the current value of a connector property 4720c8e32cc1SDaniel Vetter * @dev: DRM device 4721c8e32cc1SDaniel Vetter * @data: ioctl data 4722c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4723c8e32cc1SDaniel Vetter * 4724c8e32cc1SDaniel Vetter * This function sets the current value for a connectors's property. It also 4725c8e32cc1SDaniel Vetter * calls into a driver's ->set_property callback to update the hardware state 4726c8e32cc1SDaniel Vetter * 4727c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4728c8e32cc1SDaniel Vetter * 4729c8e32cc1SDaniel Vetter * Returns: 47301a498633SDaniel Vetter * Zero on success, negative errno on failure. 4731c8e32cc1SDaniel Vetter */ 4732f453ba04SDave Airlie int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 4733f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4734f453ba04SDave Airlie { 47350057d8ddSPaulo Zanoni struct drm_mode_connector_set_property *conn_set_prop = data; 47360057d8ddSPaulo Zanoni struct drm_mode_obj_set_property obj_set_prop = { 47370057d8ddSPaulo Zanoni .value = conn_set_prop->value, 47380057d8ddSPaulo Zanoni .prop_id = conn_set_prop->prop_id, 47390057d8ddSPaulo Zanoni .obj_id = conn_set_prop->connector_id, 47400057d8ddSPaulo Zanoni .obj_type = DRM_MODE_OBJECT_CONNECTOR 47410057d8ddSPaulo Zanoni }; 4742f453ba04SDave Airlie 47430057d8ddSPaulo Zanoni /* It does all the locking and checking we need */ 47440057d8ddSPaulo Zanoni return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); 4745f453ba04SDave Airlie } 4746f453ba04SDave Airlie 4747c543188aSPaulo Zanoni static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, 4748c543188aSPaulo Zanoni struct drm_property *property, 4749c543188aSPaulo Zanoni uint64_t value) 4750c543188aSPaulo Zanoni { 4751c543188aSPaulo Zanoni int ret = -EINVAL; 4752c543188aSPaulo Zanoni struct drm_connector *connector = obj_to_connector(obj); 4753c543188aSPaulo Zanoni 4754c543188aSPaulo Zanoni /* Do DPMS ourselves */ 4755c543188aSPaulo Zanoni if (property == connector->dev->mode_config.dpms_property) { 4756c543188aSPaulo Zanoni ret = 0; 47579a69a9acSMaarten Lankhorst if (connector->funcs->dpms) 47589a69a9acSMaarten Lankhorst ret = (*connector->funcs->dpms)(connector, (int)value); 4759c543188aSPaulo Zanoni } else if (connector->funcs->set_property) 4760c543188aSPaulo Zanoni ret = connector->funcs->set_property(connector, property, value); 4761c543188aSPaulo Zanoni 4762c543188aSPaulo Zanoni /* store the property value if successful */ 4763c543188aSPaulo Zanoni if (!ret) 476458495563SRob Clark drm_object_property_set_value(&connector->base, property, value); 4765c543188aSPaulo Zanoni return ret; 4766c543188aSPaulo Zanoni } 4767c543188aSPaulo Zanoni 4768bffd9de0SPaulo Zanoni static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, 4769bffd9de0SPaulo Zanoni struct drm_property *property, 4770bffd9de0SPaulo Zanoni uint64_t value) 4771bffd9de0SPaulo Zanoni { 4772bffd9de0SPaulo Zanoni int ret = -EINVAL; 4773bffd9de0SPaulo Zanoni struct drm_crtc *crtc = obj_to_crtc(obj); 4774bffd9de0SPaulo Zanoni 4775bffd9de0SPaulo Zanoni if (crtc->funcs->set_property) 4776bffd9de0SPaulo Zanoni ret = crtc->funcs->set_property(crtc, property, value); 4777bffd9de0SPaulo Zanoni if (!ret) 4778bffd9de0SPaulo Zanoni drm_object_property_set_value(obj, property, value); 4779bffd9de0SPaulo Zanoni 4780bffd9de0SPaulo Zanoni return ret; 4781bffd9de0SPaulo Zanoni } 4782bffd9de0SPaulo Zanoni 47833a5f87c2SThomas Wood /** 47843a5f87c2SThomas Wood * drm_mode_plane_set_obj_prop - set the value of a property 47853a5f87c2SThomas Wood * @plane: drm plane object to set property value for 47863a5f87c2SThomas Wood * @property: property to set 47873a5f87c2SThomas Wood * @value: value the property should be set to 47883a5f87c2SThomas Wood * 47893a5f87c2SThomas Wood * This functions sets a given property on a given plane object. This function 47903a5f87c2SThomas Wood * calls the driver's ->set_property callback and changes the software state of 47913a5f87c2SThomas Wood * the property if the callback succeeds. 47923a5f87c2SThomas Wood * 47933a5f87c2SThomas Wood * Returns: 47943a5f87c2SThomas Wood * Zero on success, error code on failure. 47953a5f87c2SThomas Wood */ 47963a5f87c2SThomas Wood int drm_mode_plane_set_obj_prop(struct drm_plane *plane, 47974d93914aSRob Clark struct drm_property *property, 47984d93914aSRob Clark uint64_t value) 47994d93914aSRob Clark { 48004d93914aSRob Clark int ret = -EINVAL; 48013a5f87c2SThomas Wood struct drm_mode_object *obj = &plane->base; 48024d93914aSRob Clark 48034d93914aSRob Clark if (plane->funcs->set_property) 48044d93914aSRob Clark ret = plane->funcs->set_property(plane, property, value); 48054d93914aSRob Clark if (!ret) 48064d93914aSRob Clark drm_object_property_set_value(obj, property, value); 48074d93914aSRob Clark 48084d93914aSRob Clark return ret; 48094d93914aSRob Clark } 48103a5f87c2SThomas Wood EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); 48114d93914aSRob Clark 4812c8e32cc1SDaniel Vetter /** 48131a498633SDaniel Vetter * drm_mode_obj_get_properties_ioctl - get the current value of a object's property 4814c8e32cc1SDaniel Vetter * @dev: DRM device 4815c8e32cc1SDaniel Vetter * @data: ioctl data 4816c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4817c8e32cc1SDaniel Vetter * 4818c8e32cc1SDaniel Vetter * This function retrieves the current value for an object's property. Compared 4819c8e32cc1SDaniel Vetter * to the connector specific ioctl this one is extended to also work on crtc and 4820c8e32cc1SDaniel Vetter * plane objects. 4821c8e32cc1SDaniel Vetter * 4822c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4823c8e32cc1SDaniel Vetter * 4824c8e32cc1SDaniel Vetter * Returns: 48251a498633SDaniel Vetter * Zero on success, negative errno on failure. 4826c8e32cc1SDaniel Vetter */ 4827c543188aSPaulo Zanoni int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 4828c543188aSPaulo Zanoni struct drm_file *file_priv) 4829c543188aSPaulo Zanoni { 4830c543188aSPaulo Zanoni struct drm_mode_obj_get_properties *arg = data; 4831c543188aSPaulo Zanoni struct drm_mode_object *obj; 4832c543188aSPaulo Zanoni int ret = 0; 4833c543188aSPaulo Zanoni 4834c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4835c543188aSPaulo Zanoni return -EINVAL; 4836c543188aSPaulo Zanoni 483784849903SDaniel Vetter drm_modeset_lock_all(dev); 4838c543188aSPaulo Zanoni 4839c543188aSPaulo Zanoni obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 4840c543188aSPaulo Zanoni if (!obj) { 4841f27657f2SVille Syrjälä ret = -ENOENT; 4842c543188aSPaulo Zanoni goto out; 4843c543188aSPaulo Zanoni } 4844c543188aSPaulo Zanoni if (!obj->properties) { 4845c543188aSPaulo Zanoni ret = -EINVAL; 4846c543188aSPaulo Zanoni goto out; 4847c543188aSPaulo Zanoni } 4848c543188aSPaulo Zanoni 484988a48e29SRob Clark ret = get_properties(obj, file_priv->atomic, 485095cbf110SRob Clark (uint32_t __user *)(unsigned long)(arg->props_ptr), 485195cbf110SRob Clark (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), 485295cbf110SRob Clark &arg->count_props); 4853c543188aSPaulo Zanoni 4854c543188aSPaulo Zanoni out: 485584849903SDaniel Vetter drm_modeset_unlock_all(dev); 4856c543188aSPaulo Zanoni return ret; 4857c543188aSPaulo Zanoni } 4858c543188aSPaulo Zanoni 4859c8e32cc1SDaniel Vetter /** 4860c8e32cc1SDaniel Vetter * drm_mode_obj_set_property_ioctl - set the current value of an object's property 4861c8e32cc1SDaniel Vetter * @dev: DRM device 4862c8e32cc1SDaniel Vetter * @data: ioctl data 4863c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4864c8e32cc1SDaniel Vetter * 4865c8e32cc1SDaniel Vetter * This function sets the current value for an object's property. It also calls 4866c8e32cc1SDaniel Vetter * into a driver's ->set_property callback to update the hardware state. 4867c8e32cc1SDaniel Vetter * Compared to the connector specific ioctl this one is extended to also work on 4868c8e32cc1SDaniel Vetter * crtc and plane objects. 4869c8e32cc1SDaniel Vetter * 4870c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4871c8e32cc1SDaniel Vetter * 4872c8e32cc1SDaniel Vetter * Returns: 48731a498633SDaniel Vetter * Zero on success, negative errno on failure. 4874c8e32cc1SDaniel Vetter */ 4875c543188aSPaulo Zanoni int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 4876c543188aSPaulo Zanoni struct drm_file *file_priv) 4877c543188aSPaulo Zanoni { 4878c543188aSPaulo Zanoni struct drm_mode_obj_set_property *arg = data; 4879c543188aSPaulo Zanoni struct drm_mode_object *arg_obj; 4880c543188aSPaulo Zanoni struct drm_mode_object *prop_obj; 4881c543188aSPaulo Zanoni struct drm_property *property; 48823843e71fSRob Clark int i, ret = -EINVAL; 48833843e71fSRob Clark struct drm_mode_object *ref; 4884c543188aSPaulo Zanoni 4885c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4886c543188aSPaulo Zanoni return -EINVAL; 4887c543188aSPaulo Zanoni 488884849903SDaniel Vetter drm_modeset_lock_all(dev); 4889c543188aSPaulo Zanoni 4890c543188aSPaulo Zanoni arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 4891f27657f2SVille Syrjälä if (!arg_obj) { 4892f27657f2SVille Syrjälä ret = -ENOENT; 4893c543188aSPaulo Zanoni goto out; 4894f27657f2SVille Syrjälä } 4895c543188aSPaulo Zanoni if (!arg_obj->properties) 4896c543188aSPaulo Zanoni goto out; 4897c543188aSPaulo Zanoni 48987f88a9beSPaulo Zanoni for (i = 0; i < arg_obj->properties->count; i++) 4899b17cd757SRob Clark if (arg_obj->properties->properties[i]->base.id == arg->prop_id) 4900c543188aSPaulo Zanoni break; 4901c543188aSPaulo Zanoni 49027f88a9beSPaulo Zanoni if (i == arg_obj->properties->count) 4903c543188aSPaulo Zanoni goto out; 4904c543188aSPaulo Zanoni 4905c543188aSPaulo Zanoni prop_obj = drm_mode_object_find(dev, arg->prop_id, 4906c543188aSPaulo Zanoni DRM_MODE_OBJECT_PROPERTY); 4907f27657f2SVille Syrjälä if (!prop_obj) { 4908f27657f2SVille Syrjälä ret = -ENOENT; 4909c543188aSPaulo Zanoni goto out; 4910f27657f2SVille Syrjälä } 4911c543188aSPaulo Zanoni property = obj_to_property(prop_obj); 4912c543188aSPaulo Zanoni 49133843e71fSRob Clark if (!drm_property_change_valid_get(property, arg->value, &ref)) 4914c543188aSPaulo Zanoni goto out; 4915c543188aSPaulo Zanoni 4916c543188aSPaulo Zanoni switch (arg_obj->type) { 4917c543188aSPaulo Zanoni case DRM_MODE_OBJECT_CONNECTOR: 4918c543188aSPaulo Zanoni ret = drm_mode_connector_set_obj_prop(arg_obj, property, 4919c543188aSPaulo Zanoni arg->value); 4920c543188aSPaulo Zanoni break; 4921bffd9de0SPaulo Zanoni case DRM_MODE_OBJECT_CRTC: 4922bffd9de0SPaulo Zanoni ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); 4923bffd9de0SPaulo Zanoni break; 49244d93914aSRob Clark case DRM_MODE_OBJECT_PLANE: 49253a5f87c2SThomas Wood ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), 49263a5f87c2SThomas Wood property, arg->value); 49274d93914aSRob Clark break; 4928c543188aSPaulo Zanoni } 4929c543188aSPaulo Zanoni 49303843e71fSRob Clark drm_property_change_valid_put(property, ref); 49313843e71fSRob Clark 4932c543188aSPaulo Zanoni out: 493384849903SDaniel Vetter drm_modeset_unlock_all(dev); 4934c543188aSPaulo Zanoni return ret; 4935c543188aSPaulo Zanoni } 4936c543188aSPaulo Zanoni 4937c8e32cc1SDaniel Vetter /** 4938c8e32cc1SDaniel Vetter * drm_mode_connector_attach_encoder - attach a connector to an encoder 4939c8e32cc1SDaniel Vetter * @connector: connector to attach 4940c8e32cc1SDaniel Vetter * @encoder: encoder to attach @connector to 4941c8e32cc1SDaniel Vetter * 4942c8e32cc1SDaniel Vetter * This function links up a connector to an encoder. Note that the routing 4943c8e32cc1SDaniel Vetter * restrictions between encoders and crtcs are exposed to userspace through the 4944c8e32cc1SDaniel Vetter * possible_clones and possible_crtcs bitmasks. 4945c8e32cc1SDaniel Vetter * 4946c8e32cc1SDaniel Vetter * Returns: 49471a498633SDaniel Vetter * Zero on success, negative errno on failure. 4948c8e32cc1SDaniel Vetter */ 4949f453ba04SDave Airlie int drm_mode_connector_attach_encoder(struct drm_connector *connector, 4950f453ba04SDave Airlie struct drm_encoder *encoder) 4951f453ba04SDave Airlie { 4952f453ba04SDave Airlie int i; 4953f453ba04SDave Airlie 4954f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 4955f453ba04SDave Airlie if (connector->encoder_ids[i] == 0) { 4956f453ba04SDave Airlie connector->encoder_ids[i] = encoder->base.id; 4957f453ba04SDave Airlie return 0; 4958f453ba04SDave Airlie } 4959f453ba04SDave Airlie } 4960f453ba04SDave Airlie return -ENOMEM; 4961f453ba04SDave Airlie } 4962f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_connector_attach_encoder); 4963f453ba04SDave Airlie 4964c8e32cc1SDaniel Vetter /** 4965c8e32cc1SDaniel Vetter * drm_mode_crtc_set_gamma_size - set the gamma table size 4966c8e32cc1SDaniel Vetter * @crtc: CRTC to set the gamma table size for 4967c8e32cc1SDaniel Vetter * @gamma_size: size of the gamma table 4968c8e32cc1SDaniel Vetter * 4969c8e32cc1SDaniel Vetter * Drivers which support gamma tables should set this to the supported gamma 4970c8e32cc1SDaniel Vetter * table size when initializing the CRTC. Currently the drm core only supports a 4971c8e32cc1SDaniel Vetter * fixed gamma table size. 4972c8e32cc1SDaniel Vetter * 4973c8e32cc1SDaniel Vetter * Returns: 49741a498633SDaniel Vetter * Zero on success, negative errno on failure. 4975c8e32cc1SDaniel Vetter */ 49764cae5b84SSascha Hauer int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 4977f453ba04SDave Airlie int gamma_size) 4978f453ba04SDave Airlie { 4979f453ba04SDave Airlie crtc->gamma_size = gamma_size; 4980f453ba04SDave Airlie 4981bd3f0ff9SThierry Reding crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, 4982bd3f0ff9SThierry Reding GFP_KERNEL); 4983f453ba04SDave Airlie if (!crtc->gamma_store) { 4984f453ba04SDave Airlie crtc->gamma_size = 0; 49854cae5b84SSascha Hauer return -ENOMEM; 4986f453ba04SDave Airlie } 4987f453ba04SDave Airlie 49884cae5b84SSascha Hauer return 0; 4989f453ba04SDave Airlie } 4990f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); 4991f453ba04SDave Airlie 4992c8e32cc1SDaniel Vetter /** 4993c8e32cc1SDaniel Vetter * drm_mode_gamma_set_ioctl - set the gamma table 4994c8e32cc1SDaniel Vetter * @dev: DRM device 4995c8e32cc1SDaniel Vetter * @data: ioctl data 4996c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4997c8e32cc1SDaniel Vetter * 4998c8e32cc1SDaniel Vetter * Set the gamma table of a CRTC to the one passed in by the user. Userspace can 4999c8e32cc1SDaniel Vetter * inquire the required gamma table size through drm_mode_gamma_get_ioctl. 5000c8e32cc1SDaniel Vetter * 5001c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5002c8e32cc1SDaniel Vetter * 5003c8e32cc1SDaniel Vetter * Returns: 50041a498633SDaniel Vetter * Zero on success, negative errno on failure. 5005c8e32cc1SDaniel Vetter */ 5006f453ba04SDave Airlie int drm_mode_gamma_set_ioctl(struct drm_device *dev, 5007f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5008f453ba04SDave Airlie { 5009f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5010f453ba04SDave Airlie struct drm_crtc *crtc; 5011f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5012f453ba04SDave Airlie int size; 5013f453ba04SDave Airlie int ret = 0; 5014f453ba04SDave Airlie 5015fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5016fb3b06c8SDave Airlie return -EINVAL; 5017fb3b06c8SDave Airlie 501884849903SDaniel Vetter drm_modeset_lock_all(dev); 5019a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5020a2b34e22SRob Clark if (!crtc) { 5021f27657f2SVille Syrjälä ret = -ENOENT; 5022f453ba04SDave Airlie goto out; 5023f453ba04SDave Airlie } 5024f453ba04SDave Airlie 5025ebe0f244SLaurent Pinchart if (crtc->funcs->gamma_set == NULL) { 5026ebe0f244SLaurent Pinchart ret = -ENOSYS; 5027ebe0f244SLaurent Pinchart goto out; 5028ebe0f244SLaurent Pinchart } 5029ebe0f244SLaurent Pinchart 5030f453ba04SDave Airlie /* memcpy into gamma store */ 5031f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5032f453ba04SDave Airlie ret = -EINVAL; 5033f453ba04SDave Airlie goto out; 5034f453ba04SDave Airlie } 5035f453ba04SDave Airlie 5036f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5037f453ba04SDave Airlie r_base = crtc->gamma_store; 5038f453ba04SDave Airlie if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { 5039f453ba04SDave Airlie ret = -EFAULT; 5040f453ba04SDave Airlie goto out; 5041f453ba04SDave Airlie } 5042f453ba04SDave Airlie 5043f453ba04SDave Airlie g_base = r_base + size; 5044f453ba04SDave Airlie if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { 5045f453ba04SDave Airlie ret = -EFAULT; 5046f453ba04SDave Airlie goto out; 5047f453ba04SDave Airlie } 5048f453ba04SDave Airlie 5049f453ba04SDave Airlie b_base = g_base + size; 5050f453ba04SDave Airlie if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { 5051f453ba04SDave Airlie ret = -EFAULT; 5052f453ba04SDave Airlie goto out; 5053f453ba04SDave Airlie } 5054f453ba04SDave Airlie 50557203425aSJames Simmons crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 5056f453ba04SDave Airlie 5057f453ba04SDave Airlie out: 505884849903SDaniel Vetter drm_modeset_unlock_all(dev); 5059f453ba04SDave Airlie return ret; 5060f453ba04SDave Airlie 5061f453ba04SDave Airlie } 5062f453ba04SDave Airlie 5063c8e32cc1SDaniel Vetter /** 5064c8e32cc1SDaniel Vetter * drm_mode_gamma_get_ioctl - get the gamma table 5065c8e32cc1SDaniel Vetter * @dev: DRM device 5066c8e32cc1SDaniel Vetter * @data: ioctl data 5067c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5068c8e32cc1SDaniel Vetter * 5069c8e32cc1SDaniel Vetter * Copy the current gamma table into the storage provided. This also provides 5070c8e32cc1SDaniel Vetter * the gamma table size the driver expects, which can be used to size the 5071c8e32cc1SDaniel Vetter * allocated storage. 5072c8e32cc1SDaniel Vetter * 5073c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5074c8e32cc1SDaniel Vetter * 5075c8e32cc1SDaniel Vetter * Returns: 50761a498633SDaniel Vetter * Zero on success, negative errno on failure. 5077c8e32cc1SDaniel Vetter */ 5078f453ba04SDave Airlie int drm_mode_gamma_get_ioctl(struct drm_device *dev, 5079f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5080f453ba04SDave Airlie { 5081f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5082f453ba04SDave Airlie struct drm_crtc *crtc; 5083f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5084f453ba04SDave Airlie int size; 5085f453ba04SDave Airlie int ret = 0; 5086f453ba04SDave Airlie 5087fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5088fb3b06c8SDave Airlie return -EINVAL; 5089fb3b06c8SDave Airlie 509084849903SDaniel Vetter drm_modeset_lock_all(dev); 5091a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5092a2b34e22SRob Clark if (!crtc) { 5093f27657f2SVille Syrjälä ret = -ENOENT; 5094f453ba04SDave Airlie goto out; 5095f453ba04SDave Airlie } 5096f453ba04SDave Airlie 5097f453ba04SDave Airlie /* memcpy into gamma store */ 5098f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5099f453ba04SDave Airlie ret = -EINVAL; 5100f453ba04SDave Airlie goto out; 5101f453ba04SDave Airlie } 5102f453ba04SDave Airlie 5103f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5104f453ba04SDave Airlie r_base = crtc->gamma_store; 5105f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { 5106f453ba04SDave Airlie ret = -EFAULT; 5107f453ba04SDave Airlie goto out; 5108f453ba04SDave Airlie } 5109f453ba04SDave Airlie 5110f453ba04SDave Airlie g_base = r_base + size; 5111f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { 5112f453ba04SDave Airlie ret = -EFAULT; 5113f453ba04SDave Airlie goto out; 5114f453ba04SDave Airlie } 5115f453ba04SDave Airlie 5116f453ba04SDave Airlie b_base = g_base + size; 5117f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { 5118f453ba04SDave Airlie ret = -EFAULT; 5119f453ba04SDave Airlie goto out; 5120f453ba04SDave Airlie } 5121f453ba04SDave Airlie out: 512284849903SDaniel Vetter drm_modeset_unlock_all(dev); 5123f453ba04SDave Airlie return ret; 5124f453ba04SDave Airlie } 5125d91d8a3fSKristian Høgsberg 5126c8e32cc1SDaniel Vetter /** 5127c8e32cc1SDaniel Vetter * drm_mode_page_flip_ioctl - schedule an asynchronous fb update 5128c8e32cc1SDaniel Vetter * @dev: DRM device 5129c8e32cc1SDaniel Vetter * @data: ioctl data 5130c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5131c8e32cc1SDaniel Vetter * 5132c8e32cc1SDaniel Vetter * This schedules an asynchronous update on a given CRTC, called page flip. 5133c8e32cc1SDaniel Vetter * Optionally a drm event is generated to signal the completion of the event. 5134c8e32cc1SDaniel Vetter * Generic drivers cannot assume that a pageflip with changed framebuffer 5135c8e32cc1SDaniel Vetter * properties (including driver specific metadata like tiling layout) will work, 5136c8e32cc1SDaniel Vetter * but some drivers support e.g. pixel format changes through the pageflip 5137c8e32cc1SDaniel Vetter * ioctl. 5138c8e32cc1SDaniel Vetter * 5139c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5140c8e32cc1SDaniel Vetter * 5141c8e32cc1SDaniel Vetter * Returns: 51421a498633SDaniel Vetter * Zero on success, negative errno on failure. 5143c8e32cc1SDaniel Vetter */ 5144d91d8a3fSKristian Høgsberg int drm_mode_page_flip_ioctl(struct drm_device *dev, 5145d91d8a3fSKristian Høgsberg void *data, struct drm_file *file_priv) 5146d91d8a3fSKristian Høgsberg { 5147d91d8a3fSKristian Høgsberg struct drm_mode_crtc_page_flip *page_flip = data; 5148d91d8a3fSKristian Høgsberg struct drm_crtc *crtc; 51493d30a59bSDaniel Vetter struct drm_framebuffer *fb = NULL; 5150d91d8a3fSKristian Høgsberg struct drm_pending_vblank_event *e = NULL; 5151d91d8a3fSKristian Høgsberg unsigned long flags; 5152d91d8a3fSKristian Høgsberg int ret = -EINVAL; 5153d91d8a3fSKristian Høgsberg 5154d91d8a3fSKristian Høgsberg if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || 5155d91d8a3fSKristian Høgsberg page_flip->reserved != 0) 5156d91d8a3fSKristian Høgsberg return -EINVAL; 5157d91d8a3fSKristian Høgsberg 515862f2104fSKeith Packard if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) 515962f2104fSKeith Packard return -EINVAL; 516062f2104fSKeith Packard 5161a2b34e22SRob Clark crtc = drm_crtc_find(dev, page_flip->crtc_id); 5162a2b34e22SRob Clark if (!crtc) 5163f27657f2SVille Syrjälä return -ENOENT; 5164d91d8a3fSKristian Høgsberg 51654d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 5166f4510a27SMatt Roper if (crtc->primary->fb == NULL) { 516790c1efddSChris Wilson /* The framebuffer is currently unbound, presumably 516890c1efddSChris Wilson * due to a hotplug event, that userspace has not 516990c1efddSChris Wilson * yet discovered. 517090c1efddSChris Wilson */ 517190c1efddSChris Wilson ret = -EBUSY; 517290c1efddSChris Wilson goto out; 517390c1efddSChris Wilson } 517490c1efddSChris Wilson 5175d91d8a3fSKristian Høgsberg if (crtc->funcs->page_flip == NULL) 5176d91d8a3fSKristian Høgsberg goto out; 5177d91d8a3fSKristian Høgsberg 5178786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, page_flip->fb_id); 517937c4e705SVille Syrjälä if (!fb) { 518037c4e705SVille Syrjälä ret = -ENOENT; 5181d91d8a3fSKristian Høgsberg goto out; 518237c4e705SVille Syrjälä } 5183d91d8a3fSKristian Høgsberg 5184c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); 5185c11e9283SDamien Lespiau if (ret) 51865f61bb42SVille Syrjälä goto out; 51875f61bb42SVille Syrjälä 5188f4510a27SMatt Roper if (crtc->primary->fb->pixel_format != fb->pixel_format) { 5189909d9cdaSLaurent Pinchart DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); 5190909d9cdaSLaurent Pinchart ret = -EINVAL; 5191909d9cdaSLaurent Pinchart goto out; 5192909d9cdaSLaurent Pinchart } 5193909d9cdaSLaurent Pinchart 5194d91d8a3fSKristian Høgsberg if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 5195d91d8a3fSKristian Høgsberg ret = -ENOMEM; 5196d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5197f76511b9SThierry Reding if (file_priv->event_space < sizeof(e->event)) { 5198d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5199d91d8a3fSKristian Høgsberg goto out; 5200d91d8a3fSKristian Høgsberg } 5201f76511b9SThierry Reding file_priv->event_space -= sizeof(e->event); 5202d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5203d91d8a3fSKristian Høgsberg 5204f76511b9SThierry Reding e = kzalloc(sizeof(*e), GFP_KERNEL); 5205d91d8a3fSKristian Høgsberg if (e == NULL) { 5206d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5207f76511b9SThierry Reding file_priv->event_space += sizeof(e->event); 5208d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5209d91d8a3fSKristian Høgsberg goto out; 5210d91d8a3fSKristian Høgsberg } 5211d91d8a3fSKristian Høgsberg 52127bd4d7beSJesse Barnes e->event.base.type = DRM_EVENT_FLIP_COMPLETE; 5213f76511b9SThierry Reding e->event.base.length = sizeof(e->event); 5214d91d8a3fSKristian Høgsberg e->event.user_data = page_flip->user_data; 5215d91d8a3fSKristian Høgsberg e->base.event = &e->event.base; 5216d91d8a3fSKristian Høgsberg e->base.file_priv = file_priv; 5217d91d8a3fSKristian Høgsberg e->base.destroy = 5218d91d8a3fSKristian Høgsberg (void (*) (struct drm_pending_event *)) kfree; 5219d91d8a3fSKristian Høgsberg } 5220d91d8a3fSKristian Høgsberg 52213d30a59bSDaniel Vetter crtc->primary->old_fb = crtc->primary->fb; 5222ed8d1975SKeith Packard ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); 5223d91d8a3fSKristian Høgsberg if (ret) { 5224aef6a7eeSJoonyoung Shim if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 5225d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5226f76511b9SThierry Reding file_priv->event_space += sizeof(e->event); 5227d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5228d91d8a3fSKristian Høgsberg kfree(e); 5229d91d8a3fSKristian Høgsberg } 5230b0d12325SDaniel Vetter /* Keep the old fb, don't unref it. */ 52313d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5232b0d12325SDaniel Vetter } else { 52333cb43cc0SDaniel Vetter crtc->primary->fb = fb; 5234b0d12325SDaniel Vetter /* Unref only the old framebuffer. */ 5235b0d12325SDaniel Vetter fb = NULL; 5236aef6a7eeSJoonyoung Shim } 5237d91d8a3fSKristian Høgsberg 5238d91d8a3fSKristian Høgsberg out: 5239b0d12325SDaniel Vetter if (fb) 5240b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 52413d30a59bSDaniel Vetter if (crtc->primary->old_fb) 52423d30a59bSDaniel Vetter drm_framebuffer_unreference(crtc->primary->old_fb); 52433d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5244d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 5245b4d5e7d1SDaniel Vetter 5246d91d8a3fSKristian Høgsberg return ret; 5247d91d8a3fSKristian Høgsberg } 5248eb033556SChris Wilson 5249c8e32cc1SDaniel Vetter /** 5250c8e32cc1SDaniel Vetter * drm_mode_config_reset - call ->reset callbacks 5251c8e32cc1SDaniel Vetter * @dev: drm device 5252c8e32cc1SDaniel Vetter * 5253c8e32cc1SDaniel Vetter * This functions calls all the crtc's, encoder's and connector's ->reset 5254c8e32cc1SDaniel Vetter * callback. Drivers can use this in e.g. their driver load or resume code to 5255c8e32cc1SDaniel Vetter * reset hardware and software state. 5256c8e32cc1SDaniel Vetter */ 5257eb033556SChris Wilson void drm_mode_config_reset(struct drm_device *dev) 5258eb033556SChris Wilson { 5259eb033556SChris Wilson struct drm_crtc *crtc; 52602a0d7cfdSDaniel Vetter struct drm_plane *plane; 5261eb033556SChris Wilson struct drm_encoder *encoder; 5262eb033556SChris Wilson struct drm_connector *connector; 5263eb033556SChris Wilson 5264e4f62546SDaniel Vetter drm_for_each_plane(plane, dev) 52652a0d7cfdSDaniel Vetter if (plane->funcs->reset) 52662a0d7cfdSDaniel Vetter plane->funcs->reset(plane); 52672a0d7cfdSDaniel Vetter 5268e4f62546SDaniel Vetter drm_for_each_crtc(crtc, dev) 5269eb033556SChris Wilson if (crtc->funcs->reset) 5270eb033556SChris Wilson crtc->funcs->reset(crtc); 5271eb033556SChris Wilson 5272e4f62546SDaniel Vetter drm_for_each_encoder(encoder, dev) 5273eb033556SChris Wilson if (encoder->funcs->reset) 5274eb033556SChris Wilson encoder->funcs->reset(encoder); 5275eb033556SChris Wilson 52766295d607SDaniel Vetter drm_for_each_connector(connector, dev) { 52775e2cb2f6SDaniel Vetter connector->status = connector_status_unknown; 52785e2cb2f6SDaniel Vetter 5279eb033556SChris Wilson if (connector->funcs->reset) 5280eb033556SChris Wilson connector->funcs->reset(connector); 5281eb033556SChris Wilson } 52825e2cb2f6SDaniel Vetter } 5283eb033556SChris Wilson EXPORT_SYMBOL(drm_mode_config_reset); 5284ff72145bSDave Airlie 5285c8e32cc1SDaniel Vetter /** 5286c8e32cc1SDaniel Vetter * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer 5287c8e32cc1SDaniel Vetter * @dev: DRM device 5288c8e32cc1SDaniel Vetter * @data: ioctl data 5289c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5290c8e32cc1SDaniel Vetter * 5291c8e32cc1SDaniel Vetter * This creates a new dumb buffer in the driver's backing storage manager (GEM, 5292c8e32cc1SDaniel Vetter * TTM or something else entirely) and returns the resulting buffer handle. This 5293c8e32cc1SDaniel Vetter * handle can then be wrapped up into a framebuffer modeset object. 5294c8e32cc1SDaniel Vetter * 5295c8e32cc1SDaniel Vetter * Note that userspace is not allowed to use such objects for render 5296c8e32cc1SDaniel Vetter * acceleration - drivers must create their own private ioctls for such a use 5297c8e32cc1SDaniel Vetter * case. 5298c8e32cc1SDaniel Vetter * 5299c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5300c8e32cc1SDaniel Vetter * 5301c8e32cc1SDaniel Vetter * Returns: 53021a498633SDaniel Vetter * Zero on success, negative errno on failure. 5303c8e32cc1SDaniel Vetter */ 5304ff72145bSDave Airlie int drm_mode_create_dumb_ioctl(struct drm_device *dev, 5305ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5306ff72145bSDave Airlie { 5307ff72145bSDave Airlie struct drm_mode_create_dumb *args = data; 5308b28cd41fSDavid Herrmann u32 cpp, stride, size; 5309ff72145bSDave Airlie 5310ff72145bSDave Airlie if (!dev->driver->dumb_create) 5311ff72145bSDave Airlie return -ENOSYS; 5312b28cd41fSDavid Herrmann if (!args->width || !args->height || !args->bpp) 5313b28cd41fSDavid Herrmann return -EINVAL; 5314b28cd41fSDavid Herrmann 5315b28cd41fSDavid Herrmann /* overflow checks for 32bit size calculations */ 531600e72089SDavid Herrmann /* NOTE: DIV_ROUND_UP() can overflow */ 5317b28cd41fSDavid Herrmann cpp = DIV_ROUND_UP(args->bpp, 8); 531800e72089SDavid Herrmann if (!cpp || cpp > 0xffffffffU / args->width) 5319b28cd41fSDavid Herrmann return -EINVAL; 5320b28cd41fSDavid Herrmann stride = cpp * args->width; 5321b28cd41fSDavid Herrmann if (args->height > 0xffffffffU / stride) 5322b28cd41fSDavid Herrmann return -EINVAL; 5323b28cd41fSDavid Herrmann 5324b28cd41fSDavid Herrmann /* test for wrap-around */ 5325b28cd41fSDavid Herrmann size = args->height * stride; 5326b28cd41fSDavid Herrmann if (PAGE_ALIGN(size) == 0) 5327b28cd41fSDavid Herrmann return -EINVAL; 5328b28cd41fSDavid Herrmann 5329f6085952SThierry Reding /* 5330f6085952SThierry Reding * handle, pitch and size are output parameters. Zero them out to 5331f6085952SThierry Reding * prevent drivers from accidentally using uninitialized data. Since 5332f6085952SThierry Reding * not all existing userspace is clearing these fields properly we 5333f6085952SThierry Reding * cannot reject IOCTL with garbage in them. 5334f6085952SThierry Reding */ 5335f6085952SThierry Reding args->handle = 0; 5336f6085952SThierry Reding args->pitch = 0; 5337f6085952SThierry Reding args->size = 0; 5338f6085952SThierry Reding 5339ff72145bSDave Airlie return dev->driver->dumb_create(file_priv, dev, args); 5340ff72145bSDave Airlie } 5341ff72145bSDave Airlie 5342c8e32cc1SDaniel Vetter /** 5343c8e32cc1SDaniel Vetter * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer 5344c8e32cc1SDaniel Vetter * @dev: DRM device 5345c8e32cc1SDaniel Vetter * @data: ioctl data 5346c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5347c8e32cc1SDaniel Vetter * 5348c8e32cc1SDaniel Vetter * Allocate an offset in the drm device node's address space to be able to 5349c8e32cc1SDaniel Vetter * memory map a dumb buffer. 5350c8e32cc1SDaniel Vetter * 5351c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5352c8e32cc1SDaniel Vetter * 5353c8e32cc1SDaniel Vetter * Returns: 53541a498633SDaniel Vetter * Zero on success, negative errno on failure. 5355c8e32cc1SDaniel Vetter */ 5356ff72145bSDave Airlie int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 5357ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5358ff72145bSDave Airlie { 5359ff72145bSDave Airlie struct drm_mode_map_dumb *args = data; 5360ff72145bSDave Airlie 5361ff72145bSDave Airlie /* call driver ioctl to get mmap offset */ 5362ff72145bSDave Airlie if (!dev->driver->dumb_map_offset) 5363ff72145bSDave Airlie return -ENOSYS; 5364ff72145bSDave Airlie 5365ff72145bSDave Airlie return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); 5366ff72145bSDave Airlie } 5367ff72145bSDave Airlie 5368c8e32cc1SDaniel Vetter /** 5369c8e32cc1SDaniel Vetter * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer 5370c8e32cc1SDaniel Vetter * @dev: DRM device 5371c8e32cc1SDaniel Vetter * @data: ioctl data 5372c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5373c8e32cc1SDaniel Vetter * 5374c8e32cc1SDaniel Vetter * This destroys the userspace handle for the given dumb backing storage buffer. 5375c8e32cc1SDaniel Vetter * Since buffer objects must be reference counted in the kernel a buffer object 5376c8e32cc1SDaniel Vetter * won't be immediately freed if a framebuffer modeset object still uses it. 5377c8e32cc1SDaniel Vetter * 5378c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5379c8e32cc1SDaniel Vetter * 5380c8e32cc1SDaniel Vetter * Returns: 53811a498633SDaniel Vetter * Zero on success, negative errno on failure. 5382c8e32cc1SDaniel Vetter */ 5383ff72145bSDave Airlie int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 5384ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5385ff72145bSDave Airlie { 5386ff72145bSDave Airlie struct drm_mode_destroy_dumb *args = data; 5387ff72145bSDave Airlie 5388ff72145bSDave Airlie if (!dev->driver->dumb_destroy) 5389ff72145bSDave Airlie return -ENOSYS; 5390ff72145bSDave Airlie 5391ff72145bSDave Airlie return dev->driver->dumb_destroy(file_priv, dev, args->handle); 5392ff72145bSDave Airlie } 5393248dbc23SDave Airlie 5394c8e32cc1SDaniel Vetter /** 5395c8e32cc1SDaniel Vetter * drm_fb_get_bpp_depth - get the bpp/depth values for format 5396c8e32cc1SDaniel Vetter * @format: pixel format (DRM_FORMAT_*) 5397c8e32cc1SDaniel Vetter * @depth: storage for the depth value 5398c8e32cc1SDaniel Vetter * @bpp: storage for the bpp value 5399c8e32cc1SDaniel Vetter * 5400c8e32cc1SDaniel Vetter * This only supports RGB formats here for compat with code that doesn't use 5401c8e32cc1SDaniel Vetter * pixel formats directly yet. 5402248dbc23SDave Airlie */ 5403248dbc23SDave Airlie void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 5404248dbc23SDave Airlie int *bpp) 5405248dbc23SDave Airlie { 5406248dbc23SDave Airlie switch (format) { 5407c51a6bc5SVille Syrjälä case DRM_FORMAT_C8: 540804b3924dSVille Syrjälä case DRM_FORMAT_RGB332: 540904b3924dSVille Syrjälä case DRM_FORMAT_BGR233: 5410248dbc23SDave Airlie *depth = 8; 5411248dbc23SDave Airlie *bpp = 8; 5412248dbc23SDave Airlie break; 541304b3924dSVille Syrjälä case DRM_FORMAT_XRGB1555: 541404b3924dSVille Syrjälä case DRM_FORMAT_XBGR1555: 541504b3924dSVille Syrjälä case DRM_FORMAT_RGBX5551: 541604b3924dSVille Syrjälä case DRM_FORMAT_BGRX5551: 541704b3924dSVille Syrjälä case DRM_FORMAT_ARGB1555: 541804b3924dSVille Syrjälä case DRM_FORMAT_ABGR1555: 541904b3924dSVille Syrjälä case DRM_FORMAT_RGBA5551: 542004b3924dSVille Syrjälä case DRM_FORMAT_BGRA5551: 5421248dbc23SDave Airlie *depth = 15; 5422248dbc23SDave Airlie *bpp = 16; 5423248dbc23SDave Airlie break; 542404b3924dSVille Syrjälä case DRM_FORMAT_RGB565: 542504b3924dSVille Syrjälä case DRM_FORMAT_BGR565: 5426248dbc23SDave Airlie *depth = 16; 5427248dbc23SDave Airlie *bpp = 16; 5428248dbc23SDave Airlie break; 542904b3924dSVille Syrjälä case DRM_FORMAT_RGB888: 543004b3924dSVille Syrjälä case DRM_FORMAT_BGR888: 543104b3924dSVille Syrjälä *depth = 24; 543204b3924dSVille Syrjälä *bpp = 24; 543304b3924dSVille Syrjälä break; 543404b3924dSVille Syrjälä case DRM_FORMAT_XRGB8888: 543504b3924dSVille Syrjälä case DRM_FORMAT_XBGR8888: 543604b3924dSVille Syrjälä case DRM_FORMAT_RGBX8888: 543704b3924dSVille Syrjälä case DRM_FORMAT_BGRX8888: 5438248dbc23SDave Airlie *depth = 24; 5439248dbc23SDave Airlie *bpp = 32; 5440248dbc23SDave Airlie break; 544104b3924dSVille Syrjälä case DRM_FORMAT_XRGB2101010: 544204b3924dSVille Syrjälä case DRM_FORMAT_XBGR2101010: 544304b3924dSVille Syrjälä case DRM_FORMAT_RGBX1010102: 544404b3924dSVille Syrjälä case DRM_FORMAT_BGRX1010102: 544504b3924dSVille Syrjälä case DRM_FORMAT_ARGB2101010: 544604b3924dSVille Syrjälä case DRM_FORMAT_ABGR2101010: 544704b3924dSVille Syrjälä case DRM_FORMAT_RGBA1010102: 544804b3924dSVille Syrjälä case DRM_FORMAT_BGRA1010102: 5449248dbc23SDave Airlie *depth = 30; 5450248dbc23SDave Airlie *bpp = 32; 5451248dbc23SDave Airlie break; 545204b3924dSVille Syrjälä case DRM_FORMAT_ARGB8888: 545304b3924dSVille Syrjälä case DRM_FORMAT_ABGR8888: 545404b3924dSVille Syrjälä case DRM_FORMAT_RGBA8888: 545504b3924dSVille Syrjälä case DRM_FORMAT_BGRA8888: 5456248dbc23SDave Airlie *depth = 32; 5457248dbc23SDave Airlie *bpp = 32; 5458248dbc23SDave Airlie break; 5459248dbc23SDave Airlie default: 546023c453a4SVille Syrjälä DRM_DEBUG_KMS("unsupported pixel format %s\n", 546123c453a4SVille Syrjälä drm_get_format_name(format)); 5462248dbc23SDave Airlie *depth = 0; 5463248dbc23SDave Airlie *bpp = 0; 5464248dbc23SDave Airlie break; 5465248dbc23SDave Airlie } 5466248dbc23SDave Airlie } 5467248dbc23SDave Airlie EXPORT_SYMBOL(drm_fb_get_bpp_depth); 5468141670e9SVille Syrjälä 5469141670e9SVille Syrjälä /** 5470141670e9SVille Syrjälä * drm_format_num_planes - get the number of planes for format 5471141670e9SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 5472141670e9SVille Syrjälä * 5473c8e32cc1SDaniel Vetter * Returns: 5474141670e9SVille Syrjälä * The number of planes used by the specified pixel format. 5475141670e9SVille Syrjälä */ 5476141670e9SVille Syrjälä int drm_format_num_planes(uint32_t format) 5477141670e9SVille Syrjälä { 5478141670e9SVille Syrjälä switch (format) { 5479141670e9SVille Syrjälä case DRM_FORMAT_YUV410: 5480141670e9SVille Syrjälä case DRM_FORMAT_YVU410: 5481141670e9SVille Syrjälä case DRM_FORMAT_YUV411: 5482141670e9SVille Syrjälä case DRM_FORMAT_YVU411: 5483141670e9SVille Syrjälä case DRM_FORMAT_YUV420: 5484141670e9SVille Syrjälä case DRM_FORMAT_YVU420: 5485141670e9SVille Syrjälä case DRM_FORMAT_YUV422: 5486141670e9SVille Syrjälä case DRM_FORMAT_YVU422: 5487141670e9SVille Syrjälä case DRM_FORMAT_YUV444: 5488141670e9SVille Syrjälä case DRM_FORMAT_YVU444: 5489141670e9SVille Syrjälä return 3; 5490141670e9SVille Syrjälä case DRM_FORMAT_NV12: 5491141670e9SVille Syrjälä case DRM_FORMAT_NV21: 5492141670e9SVille Syrjälä case DRM_FORMAT_NV16: 5493141670e9SVille Syrjälä case DRM_FORMAT_NV61: 5494ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 5495ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 5496141670e9SVille Syrjälä return 2; 5497141670e9SVille Syrjälä default: 5498141670e9SVille Syrjälä return 1; 5499141670e9SVille Syrjälä } 5500141670e9SVille Syrjälä } 5501141670e9SVille Syrjälä EXPORT_SYMBOL(drm_format_num_planes); 55025a86bd55SVille Syrjälä 55035a86bd55SVille Syrjälä /** 55045a86bd55SVille Syrjälä * drm_format_plane_cpp - determine the bytes per pixel value 55055a86bd55SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 55065a86bd55SVille Syrjälä * @plane: plane index 55075a86bd55SVille Syrjälä * 5508c8e32cc1SDaniel Vetter * Returns: 55095a86bd55SVille Syrjälä * The bytes per pixel value for the specified plane. 55105a86bd55SVille Syrjälä */ 55115a86bd55SVille Syrjälä int drm_format_plane_cpp(uint32_t format, int plane) 55125a86bd55SVille Syrjälä { 55135a86bd55SVille Syrjälä unsigned int depth; 55145a86bd55SVille Syrjälä int bpp; 55155a86bd55SVille Syrjälä 55165a86bd55SVille Syrjälä if (plane >= drm_format_num_planes(format)) 55175a86bd55SVille Syrjälä return 0; 55185a86bd55SVille Syrjälä 55195a86bd55SVille Syrjälä switch (format) { 55205a86bd55SVille Syrjälä case DRM_FORMAT_YUYV: 55215a86bd55SVille Syrjälä case DRM_FORMAT_YVYU: 55225a86bd55SVille Syrjälä case DRM_FORMAT_UYVY: 55235a86bd55SVille Syrjälä case DRM_FORMAT_VYUY: 55245a86bd55SVille Syrjälä return 2; 55255a86bd55SVille Syrjälä case DRM_FORMAT_NV12: 55265a86bd55SVille Syrjälä case DRM_FORMAT_NV21: 55275a86bd55SVille Syrjälä case DRM_FORMAT_NV16: 55285a86bd55SVille Syrjälä case DRM_FORMAT_NV61: 5529ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 5530ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 55315a86bd55SVille Syrjälä return plane ? 2 : 1; 55325a86bd55SVille Syrjälä case DRM_FORMAT_YUV410: 55335a86bd55SVille Syrjälä case DRM_FORMAT_YVU410: 55345a86bd55SVille Syrjälä case DRM_FORMAT_YUV411: 55355a86bd55SVille Syrjälä case DRM_FORMAT_YVU411: 55365a86bd55SVille Syrjälä case DRM_FORMAT_YUV420: 55375a86bd55SVille Syrjälä case DRM_FORMAT_YVU420: 55385a86bd55SVille Syrjälä case DRM_FORMAT_YUV422: 55395a86bd55SVille Syrjälä case DRM_FORMAT_YVU422: 55405a86bd55SVille Syrjälä case DRM_FORMAT_YUV444: 55415a86bd55SVille Syrjälä case DRM_FORMAT_YVU444: 55425a86bd55SVille Syrjälä return 1; 55435a86bd55SVille Syrjälä default: 55445a86bd55SVille Syrjälä drm_fb_get_bpp_depth(format, &depth, &bpp); 55455a86bd55SVille Syrjälä return bpp >> 3; 55465a86bd55SVille Syrjälä } 55475a86bd55SVille Syrjälä } 55485a86bd55SVille Syrjälä EXPORT_SYMBOL(drm_format_plane_cpp); 554901b68b04SVille Syrjälä 555001b68b04SVille Syrjälä /** 555101b68b04SVille Syrjälä * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor 555201b68b04SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 555301b68b04SVille Syrjälä * 5554c8e32cc1SDaniel Vetter * Returns: 555501b68b04SVille Syrjälä * The horizontal chroma subsampling factor for the 555601b68b04SVille Syrjälä * specified pixel format. 555701b68b04SVille Syrjälä */ 555801b68b04SVille Syrjälä int drm_format_horz_chroma_subsampling(uint32_t format) 555901b68b04SVille Syrjälä { 556001b68b04SVille Syrjälä switch (format) { 556101b68b04SVille Syrjälä case DRM_FORMAT_YUV411: 556201b68b04SVille Syrjälä case DRM_FORMAT_YVU411: 556301b68b04SVille Syrjälä case DRM_FORMAT_YUV410: 556401b68b04SVille Syrjälä case DRM_FORMAT_YVU410: 556501b68b04SVille Syrjälä return 4; 556601b68b04SVille Syrjälä case DRM_FORMAT_YUYV: 556701b68b04SVille Syrjälä case DRM_FORMAT_YVYU: 556801b68b04SVille Syrjälä case DRM_FORMAT_UYVY: 556901b68b04SVille Syrjälä case DRM_FORMAT_VYUY: 557001b68b04SVille Syrjälä case DRM_FORMAT_NV12: 557101b68b04SVille Syrjälä case DRM_FORMAT_NV21: 557201b68b04SVille Syrjälä case DRM_FORMAT_NV16: 557301b68b04SVille Syrjälä case DRM_FORMAT_NV61: 557401b68b04SVille Syrjälä case DRM_FORMAT_YUV422: 557501b68b04SVille Syrjälä case DRM_FORMAT_YVU422: 557601b68b04SVille Syrjälä case DRM_FORMAT_YUV420: 557701b68b04SVille Syrjälä case DRM_FORMAT_YVU420: 557801b68b04SVille Syrjälä return 2; 557901b68b04SVille Syrjälä default: 558001b68b04SVille Syrjälä return 1; 558101b68b04SVille Syrjälä } 558201b68b04SVille Syrjälä } 558301b68b04SVille Syrjälä EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); 558401b68b04SVille Syrjälä 558501b68b04SVille Syrjälä /** 558601b68b04SVille Syrjälä * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor 558701b68b04SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 558801b68b04SVille Syrjälä * 5589c8e32cc1SDaniel Vetter * Returns: 559001b68b04SVille Syrjälä * The vertical chroma subsampling factor for the 559101b68b04SVille Syrjälä * specified pixel format. 559201b68b04SVille Syrjälä */ 559301b68b04SVille Syrjälä int drm_format_vert_chroma_subsampling(uint32_t format) 559401b68b04SVille Syrjälä { 559501b68b04SVille Syrjälä switch (format) { 559601b68b04SVille Syrjälä case DRM_FORMAT_YUV410: 559701b68b04SVille Syrjälä case DRM_FORMAT_YVU410: 559801b68b04SVille Syrjälä return 4; 559901b68b04SVille Syrjälä case DRM_FORMAT_YUV420: 560001b68b04SVille Syrjälä case DRM_FORMAT_YVU420: 560101b68b04SVille Syrjälä case DRM_FORMAT_NV12: 560201b68b04SVille Syrjälä case DRM_FORMAT_NV21: 560301b68b04SVille Syrjälä return 2; 560401b68b04SVille Syrjälä default: 560501b68b04SVille Syrjälä return 1; 560601b68b04SVille Syrjälä } 560701b68b04SVille Syrjälä } 560801b68b04SVille Syrjälä EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); 560987d24fc3SLaurent Pinchart 561087d24fc3SLaurent Pinchart /** 56113c9855f6SVille Syrjälä * drm_rotation_simplify() - Try to simplify the rotation 56123c9855f6SVille Syrjälä * @rotation: Rotation to be simplified 56133c9855f6SVille Syrjälä * @supported_rotations: Supported rotations 56143c9855f6SVille Syrjälä * 56153c9855f6SVille Syrjälä * Attempt to simplify the rotation to a form that is supported. 56163c9855f6SVille Syrjälä * Eg. if the hardware supports everything except DRM_REFLECT_X 56173c9855f6SVille Syrjälä * one could call this function like this: 56183c9855f6SVille Syrjälä * 56193c9855f6SVille Syrjälä * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | 56203c9855f6SVille Syrjälä * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | 56213c9855f6SVille Syrjälä * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); 56223c9855f6SVille Syrjälä * 56233c9855f6SVille Syrjälä * to eliminate the DRM_ROTATE_X flag. Depending on what kind of 56243c9855f6SVille Syrjälä * transforms the hardware supports, this function may not 56253c9855f6SVille Syrjälä * be able to produce a supported transform, so the caller should 56263c9855f6SVille Syrjälä * check the result afterwards. 56273c9855f6SVille Syrjälä */ 56283c9855f6SVille Syrjälä unsigned int drm_rotation_simplify(unsigned int rotation, 56293c9855f6SVille Syrjälä unsigned int supported_rotations) 56303c9855f6SVille Syrjälä { 56313c9855f6SVille Syrjälä if (rotation & ~supported_rotations) { 56323c9855f6SVille Syrjälä rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); 56333c9855f6SVille Syrjälä rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4); 56343c9855f6SVille Syrjälä } 56353c9855f6SVille Syrjälä 56363c9855f6SVille Syrjälä return rotation; 56373c9855f6SVille Syrjälä } 56383c9855f6SVille Syrjälä EXPORT_SYMBOL(drm_rotation_simplify); 56393c9855f6SVille Syrjälä 56403c9855f6SVille Syrjälä /** 564187d24fc3SLaurent Pinchart * drm_mode_config_init - initialize DRM mode_configuration structure 564287d24fc3SLaurent Pinchart * @dev: DRM device 564387d24fc3SLaurent Pinchart * 564487d24fc3SLaurent Pinchart * Initialize @dev's mode_config structure, used for tracking the graphics 564587d24fc3SLaurent Pinchart * configuration of @dev. 564687d24fc3SLaurent Pinchart * 564787d24fc3SLaurent Pinchart * Since this initializes the modeset locks, no locking is possible. Which is no 564887d24fc3SLaurent Pinchart * problem, since this should happen single threaded at init time. It is the 564987d24fc3SLaurent Pinchart * driver's problem to ensure this guarantee. 565087d24fc3SLaurent Pinchart * 565187d24fc3SLaurent Pinchart */ 565287d24fc3SLaurent Pinchart void drm_mode_config_init(struct drm_device *dev) 565387d24fc3SLaurent Pinchart { 565487d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.mutex); 565551fd371bSRob Clark drm_modeset_lock_init(&dev->mode_config.connection_mutex); 565687d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.idr_mutex); 565787d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.fb_lock); 56588fb6e7a5SDaniel Stone mutex_init(&dev->mode_config.blob_lock); 565987d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.fb_list); 566087d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.crtc_list); 566187d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.connector_list); 566287d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.encoder_list); 566387d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_list); 566487d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_blob_list); 566587d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.plane_list); 566687d24fc3SLaurent Pinchart idr_init(&dev->mode_config.crtc_idr); 5667138f9ebbSDave Airlie idr_init(&dev->mode_config.tile_idr); 566887d24fc3SLaurent Pinchart 566987d24fc3SLaurent Pinchart drm_modeset_lock_all(dev); 56706b4959f4SRob Clark drm_mode_create_standard_properties(dev); 567187d24fc3SLaurent Pinchart drm_modeset_unlock_all(dev); 567287d24fc3SLaurent Pinchart 567387d24fc3SLaurent Pinchart /* Just to be sure */ 567487d24fc3SLaurent Pinchart dev->mode_config.num_fb = 0; 567587d24fc3SLaurent Pinchart dev->mode_config.num_connector = 0; 567687d24fc3SLaurent Pinchart dev->mode_config.num_crtc = 0; 567787d24fc3SLaurent Pinchart dev->mode_config.num_encoder = 0; 5678e27dde3eSMatt Roper dev->mode_config.num_overlay_plane = 0; 5679e27dde3eSMatt Roper dev->mode_config.num_total_plane = 0; 568087d24fc3SLaurent Pinchart } 568187d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_init); 568287d24fc3SLaurent Pinchart 568387d24fc3SLaurent Pinchart /** 568487d24fc3SLaurent Pinchart * drm_mode_config_cleanup - free up DRM mode_config info 568587d24fc3SLaurent Pinchart * @dev: DRM device 568687d24fc3SLaurent Pinchart * 568787d24fc3SLaurent Pinchart * Free up all the connectors and CRTCs associated with this DRM device, then 568887d24fc3SLaurent Pinchart * free up the framebuffers and associated buffer objects. 568987d24fc3SLaurent Pinchart * 569087d24fc3SLaurent Pinchart * Note that since this /should/ happen single-threaded at driver/device 569187d24fc3SLaurent Pinchart * teardown time, no locking is required. It's the driver's job to ensure that 569287d24fc3SLaurent Pinchart * this guarantee actually holds true. 569387d24fc3SLaurent Pinchart * 569487d24fc3SLaurent Pinchart * FIXME: cleanup any dangling user buffer objects too 569587d24fc3SLaurent Pinchart */ 569687d24fc3SLaurent Pinchart void drm_mode_config_cleanup(struct drm_device *dev) 569787d24fc3SLaurent Pinchart { 569887d24fc3SLaurent Pinchart struct drm_connector *connector, *ot; 569987d24fc3SLaurent Pinchart struct drm_crtc *crtc, *ct; 570087d24fc3SLaurent Pinchart struct drm_encoder *encoder, *enct; 570187d24fc3SLaurent Pinchart struct drm_framebuffer *fb, *fbt; 570287d24fc3SLaurent Pinchart struct drm_property *property, *pt; 570387d24fc3SLaurent Pinchart struct drm_property_blob *blob, *bt; 570487d24fc3SLaurent Pinchart struct drm_plane *plane, *plt; 570587d24fc3SLaurent Pinchart 570687d24fc3SLaurent Pinchart list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, 570787d24fc3SLaurent Pinchart head) { 570887d24fc3SLaurent Pinchart encoder->funcs->destroy(encoder); 570987d24fc3SLaurent Pinchart } 571087d24fc3SLaurent Pinchart 571187d24fc3SLaurent Pinchart list_for_each_entry_safe(connector, ot, 571287d24fc3SLaurent Pinchart &dev->mode_config.connector_list, head) { 571387d24fc3SLaurent Pinchart connector->funcs->destroy(connector); 571487d24fc3SLaurent Pinchart } 571587d24fc3SLaurent Pinchart 571687d24fc3SLaurent Pinchart list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, 571787d24fc3SLaurent Pinchart head) { 571887d24fc3SLaurent Pinchart drm_property_destroy(dev, property); 571987d24fc3SLaurent Pinchart } 572087d24fc3SLaurent Pinchart 572187d24fc3SLaurent Pinchart list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, 5722e2f5d2eaSDaniel Stone head_global) { 57236bcacf51SDaniel Stone drm_property_unreference_blob(blob); 572487d24fc3SLaurent Pinchart } 572587d24fc3SLaurent Pinchart 572687d24fc3SLaurent Pinchart /* 572787d24fc3SLaurent Pinchart * Single-threaded teardown context, so it's not required to grab the 572887d24fc3SLaurent Pinchart * fb_lock to protect against concurrent fb_list access. Contrary, it 572987d24fc3SLaurent Pinchart * would actually deadlock with the drm_framebuffer_cleanup function. 573087d24fc3SLaurent Pinchart * 573187d24fc3SLaurent Pinchart * Also, if there are any framebuffers left, that's a driver leak now, 573287d24fc3SLaurent Pinchart * so politely WARN about this. 573387d24fc3SLaurent Pinchart */ 573487d24fc3SLaurent Pinchart WARN_ON(!list_empty(&dev->mode_config.fb_list)); 573587d24fc3SLaurent Pinchart list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { 573687d24fc3SLaurent Pinchart drm_framebuffer_remove(fb); 573787d24fc3SLaurent Pinchart } 573887d24fc3SLaurent Pinchart 573987d24fc3SLaurent Pinchart list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, 574087d24fc3SLaurent Pinchart head) { 574187d24fc3SLaurent Pinchart plane->funcs->destroy(plane); 574287d24fc3SLaurent Pinchart } 574387d24fc3SLaurent Pinchart 574487d24fc3SLaurent Pinchart list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { 574587d24fc3SLaurent Pinchart crtc->funcs->destroy(crtc); 574687d24fc3SLaurent Pinchart } 574787d24fc3SLaurent Pinchart 5748138f9ebbSDave Airlie idr_destroy(&dev->mode_config.tile_idr); 574987d24fc3SLaurent Pinchart idr_destroy(&dev->mode_config.crtc_idr); 575051fd371bSRob Clark drm_modeset_lock_fini(&dev->mode_config.connection_mutex); 575187d24fc3SLaurent Pinchart } 575287d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_cleanup); 5753c1df5f3cSVille Syrjälä 5754c1df5f3cSVille Syrjälä struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, 5755c1df5f3cSVille Syrjälä unsigned int supported_rotations) 5756c1df5f3cSVille Syrjälä { 5757c1df5f3cSVille Syrjälä static const struct drm_prop_enum_list props[] = { 5758c1df5f3cSVille Syrjälä { DRM_ROTATE_0, "rotate-0" }, 5759c1df5f3cSVille Syrjälä { DRM_ROTATE_90, "rotate-90" }, 5760c1df5f3cSVille Syrjälä { DRM_ROTATE_180, "rotate-180" }, 5761c1df5f3cSVille Syrjälä { DRM_ROTATE_270, "rotate-270" }, 5762c1df5f3cSVille Syrjälä { DRM_REFLECT_X, "reflect-x" }, 5763c1df5f3cSVille Syrjälä { DRM_REFLECT_Y, "reflect-y" }, 5764c1df5f3cSVille Syrjälä }; 5765c1df5f3cSVille Syrjälä 5766c1df5f3cSVille Syrjälä return drm_property_create_bitmask(dev, 0, "rotation", 5767c1df5f3cSVille Syrjälä props, ARRAY_SIZE(props), 5768c1df5f3cSVille Syrjälä supported_rotations); 5769c1df5f3cSVille Syrjälä } 5770c1df5f3cSVille Syrjälä EXPORT_SYMBOL(drm_mode_create_rotation_property); 5771138f9ebbSDave Airlie 5772138f9ebbSDave Airlie /** 5773138f9ebbSDave Airlie * DOC: Tile group 5774138f9ebbSDave Airlie * 5775138f9ebbSDave Airlie * Tile groups are used to represent tiled monitors with a unique 5776138f9ebbSDave Airlie * integer identifier. Tiled monitors using DisplayID v1.3 have 5777138f9ebbSDave Airlie * a unique 8-byte handle, we store this in a tile group, so we 5778138f9ebbSDave Airlie * have a common identifier for all tiles in a monitor group. 5779138f9ebbSDave Airlie */ 5780138f9ebbSDave Airlie static void drm_tile_group_free(struct kref *kref) 5781138f9ebbSDave Airlie { 5782138f9ebbSDave Airlie struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); 5783138f9ebbSDave Airlie struct drm_device *dev = tg->dev; 5784138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5785138f9ebbSDave Airlie idr_remove(&dev->mode_config.tile_idr, tg->id); 5786138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5787138f9ebbSDave Airlie kfree(tg); 5788138f9ebbSDave Airlie } 5789138f9ebbSDave Airlie 5790138f9ebbSDave Airlie /** 5791138f9ebbSDave Airlie * drm_mode_put_tile_group - drop a reference to a tile group. 5792138f9ebbSDave Airlie * @dev: DRM device 5793138f9ebbSDave Airlie * @tg: tile group to drop reference to. 5794138f9ebbSDave Airlie * 5795138f9ebbSDave Airlie * drop reference to tile group and free if 0. 5796138f9ebbSDave Airlie */ 5797138f9ebbSDave Airlie void drm_mode_put_tile_group(struct drm_device *dev, 5798138f9ebbSDave Airlie struct drm_tile_group *tg) 5799138f9ebbSDave Airlie { 5800138f9ebbSDave Airlie kref_put(&tg->refcount, drm_tile_group_free); 5801138f9ebbSDave Airlie } 5802138f9ebbSDave Airlie 5803138f9ebbSDave Airlie /** 5804138f9ebbSDave Airlie * drm_mode_get_tile_group - get a reference to an existing tile group 5805138f9ebbSDave Airlie * @dev: DRM device 5806138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 5807138f9ebbSDave Airlie * 5808138f9ebbSDave Airlie * Use the unique bytes to get a reference to an existing tile group. 5809138f9ebbSDave Airlie * 5810138f9ebbSDave Airlie * RETURNS: 5811138f9ebbSDave Airlie * tile group or NULL if not found. 5812138f9ebbSDave Airlie */ 5813138f9ebbSDave Airlie struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, 5814138f9ebbSDave Airlie char topology[8]) 5815138f9ebbSDave Airlie { 5816138f9ebbSDave Airlie struct drm_tile_group *tg; 5817138f9ebbSDave Airlie int id; 5818138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5819138f9ebbSDave Airlie idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { 5820138f9ebbSDave Airlie if (!memcmp(tg->group_data, topology, 8)) { 5821138f9ebbSDave Airlie if (!kref_get_unless_zero(&tg->refcount)) 5822138f9ebbSDave Airlie tg = NULL; 5823138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5824138f9ebbSDave Airlie return tg; 5825138f9ebbSDave Airlie } 5826138f9ebbSDave Airlie } 5827138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5828138f9ebbSDave Airlie return NULL; 5829138f9ebbSDave Airlie } 583081ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_get_tile_group); 5831138f9ebbSDave Airlie 5832138f9ebbSDave Airlie /** 5833138f9ebbSDave Airlie * drm_mode_create_tile_group - create a tile group from a displayid description 5834138f9ebbSDave Airlie * @dev: DRM device 5835138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 5836138f9ebbSDave Airlie * 5837138f9ebbSDave Airlie * Create a tile group for the unique monitor, and get a unique 5838138f9ebbSDave Airlie * identifier for the tile group. 5839138f9ebbSDave Airlie * 5840138f9ebbSDave Airlie * RETURNS: 5841138f9ebbSDave Airlie * new tile group or error. 5842138f9ebbSDave Airlie */ 5843138f9ebbSDave Airlie struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, 5844138f9ebbSDave Airlie char topology[8]) 5845138f9ebbSDave Airlie { 5846138f9ebbSDave Airlie struct drm_tile_group *tg; 5847138f9ebbSDave Airlie int ret; 5848138f9ebbSDave Airlie 5849138f9ebbSDave Airlie tg = kzalloc(sizeof(*tg), GFP_KERNEL); 5850138f9ebbSDave Airlie if (!tg) 5851138f9ebbSDave Airlie return ERR_PTR(-ENOMEM); 5852138f9ebbSDave Airlie 5853138f9ebbSDave Airlie kref_init(&tg->refcount); 5854138f9ebbSDave Airlie memcpy(tg->group_data, topology, 8); 5855138f9ebbSDave Airlie tg->dev = dev; 5856138f9ebbSDave Airlie 5857138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5858138f9ebbSDave Airlie ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); 5859138f9ebbSDave Airlie if (ret >= 0) { 5860138f9ebbSDave Airlie tg->id = ret; 5861138f9ebbSDave Airlie } else { 5862138f9ebbSDave Airlie kfree(tg); 5863138f9ebbSDave Airlie tg = ERR_PTR(ret); 5864138f9ebbSDave Airlie } 5865138f9ebbSDave Airlie 5866138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5867138f9ebbSDave Airlie return tg; 5868138f9ebbSDave Airlie } 586981ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_create_tile_group); 5870