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 */ 618f453ba04SDave Airlie list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 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 6308cf5c917SJesse Barnes list_for_each_entry(plane, &dev->mode_config.plane_list, head) { 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); 691eab3bbefSDaniel Vetter } 692eab3bbefSDaniel Vetter 693baf698b0SDaniel Vetter return 0; 694f453ba04SDave Airlie } 695e13161afSMatt Roper EXPORT_SYMBOL(drm_crtc_init_with_planes); 696f453ba04SDave Airlie 697f453ba04SDave Airlie /** 698ad6f5c34SVille Syrjälä * drm_crtc_cleanup - Clean up the core crtc usage 699f453ba04SDave Airlie * @crtc: CRTC to cleanup 700f453ba04SDave Airlie * 701ad6f5c34SVille Syrjälä * This function cleans up @crtc and removes it from the DRM mode setting 702ad6f5c34SVille Syrjälä * core. Note that the function does *not* free the crtc structure itself, 703ad6f5c34SVille Syrjälä * this is the responsibility of the caller. 704f453ba04SDave Airlie */ 705f453ba04SDave Airlie void drm_crtc_cleanup(struct drm_crtc *crtc) 706f453ba04SDave Airlie { 707f453ba04SDave Airlie struct drm_device *dev = crtc->dev; 708f453ba04SDave Airlie 709f453ba04SDave Airlie kfree(crtc->gamma_store); 710f453ba04SDave Airlie crtc->gamma_store = NULL; 711f453ba04SDave Airlie 71251fd371bSRob Clark drm_modeset_lock_fini(&crtc->mutex); 71351fd371bSRob Clark 714f453ba04SDave Airlie drm_mode_object_put(dev, &crtc->base); 715f453ba04SDave Airlie list_del(&crtc->head); 716f453ba04SDave Airlie dev->mode_config.num_crtc--; 7173009c037SThierry Reding 7183009c037SThierry Reding WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); 7193009c037SThierry Reding if (crtc->state && crtc->funcs->atomic_destroy_state) 7203009c037SThierry Reding crtc->funcs->atomic_destroy_state(crtc, crtc->state); 721a18c0af1SThierry Reding 722a18c0af1SThierry Reding memset(crtc, 0, sizeof(*crtc)); 723f453ba04SDave Airlie } 724f453ba04SDave Airlie EXPORT_SYMBOL(drm_crtc_cleanup); 725f453ba04SDave Airlie 726f453ba04SDave Airlie /** 727db5f7a6eSRussell King * drm_crtc_index - find the index of a registered CRTC 728db5f7a6eSRussell King * @crtc: CRTC to find index for 729db5f7a6eSRussell King * 730db5f7a6eSRussell King * Given a registered CRTC, return the index of that CRTC within a DRM 731db5f7a6eSRussell King * device's list of CRTCs. 732db5f7a6eSRussell King */ 733db5f7a6eSRussell King unsigned int drm_crtc_index(struct drm_crtc *crtc) 734db5f7a6eSRussell King { 735db5f7a6eSRussell King unsigned int index = 0; 736db5f7a6eSRussell King struct drm_crtc *tmp; 737db5f7a6eSRussell King 738db5f7a6eSRussell King list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { 739db5f7a6eSRussell King if (tmp == crtc) 740db5f7a6eSRussell King return index; 741db5f7a6eSRussell King 742db5f7a6eSRussell King index++; 743db5f7a6eSRussell King } 744db5f7a6eSRussell King 745db5f7a6eSRussell King BUG(); 746db5f7a6eSRussell King } 747db5f7a6eSRussell King EXPORT_SYMBOL(drm_crtc_index); 748db5f7a6eSRussell King 74986f422d5SLespiau, Damien /* 750f453ba04SDave Airlie * drm_mode_remove - remove and free a mode 751f453ba04SDave Airlie * @connector: connector list to modify 752f453ba04SDave Airlie * @mode: mode to remove 753f453ba04SDave Airlie * 754f453ba04SDave Airlie * Remove @mode from @connector's mode list, then free it. 755f453ba04SDave Airlie */ 75686f422d5SLespiau, Damien static void drm_mode_remove(struct drm_connector *connector, 757f453ba04SDave Airlie struct drm_display_mode *mode) 758f453ba04SDave Airlie { 759f453ba04SDave Airlie list_del(&mode->head); 760554f1d78SSascha Hauer drm_mode_destroy(connector->dev, mode); 761f453ba04SDave Airlie } 762f453ba04SDave Airlie 763f453ba04SDave Airlie /** 764b5571e9dSBoris Brezillon * drm_display_info_set_bus_formats - set the supported bus formats 765b5571e9dSBoris Brezillon * @info: display info to store bus formats in 766e37bfa1aSBoris Brezillon * @formats: array containing the supported bus formats 767e37bfa1aSBoris Brezillon * @num_formats: the number of entries in the fmts array 768b5571e9dSBoris Brezillon * 769b5571e9dSBoris Brezillon * Store the supported bus formats in display info structure. 770b5571e9dSBoris Brezillon * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for 771b5571e9dSBoris Brezillon * a full list of available formats. 772b5571e9dSBoris Brezillon */ 773b5571e9dSBoris Brezillon int drm_display_info_set_bus_formats(struct drm_display_info *info, 774b5571e9dSBoris Brezillon const u32 *formats, 775b5571e9dSBoris Brezillon unsigned int num_formats) 776b5571e9dSBoris Brezillon { 777b5571e9dSBoris Brezillon u32 *fmts = NULL; 778b5571e9dSBoris Brezillon 779b5571e9dSBoris Brezillon if (!formats && num_formats) 780b5571e9dSBoris Brezillon return -EINVAL; 781b5571e9dSBoris Brezillon 782b5571e9dSBoris Brezillon if (formats && num_formats) { 783b5571e9dSBoris Brezillon fmts = kmemdup(formats, sizeof(*formats) * num_formats, 784b5571e9dSBoris Brezillon GFP_KERNEL); 785944579c5SDan Carpenter if (!fmts) 786b5571e9dSBoris Brezillon return -ENOMEM; 787b5571e9dSBoris Brezillon } 788b5571e9dSBoris Brezillon 789b5571e9dSBoris Brezillon kfree(info->bus_formats); 790b5571e9dSBoris Brezillon info->bus_formats = fmts; 791b5571e9dSBoris Brezillon info->num_bus_formats = num_formats; 792b5571e9dSBoris Brezillon 793b5571e9dSBoris Brezillon return 0; 794b5571e9dSBoris Brezillon } 795b5571e9dSBoris Brezillon EXPORT_SYMBOL(drm_display_info_set_bus_formats); 796b5571e9dSBoris Brezillon 797b5571e9dSBoris Brezillon /** 798eaf99c74SChris Wilson * drm_connector_get_cmdline_mode - reads the user's cmdline mode 799eaf99c74SChris Wilson * @connector: connector to quwery 800eaf99c74SChris Wilson * 801eaf99c74SChris Wilson * The kernel supports per-connector configration of its consoles through 802eaf99c74SChris Wilson * use of the video= parameter. This function parses that option and 803eaf99c74SChris Wilson * extracts the user's specified mode (or enable/disable status) for a 804eaf99c74SChris Wilson * particular connector. This is typically only used during the early fbdev 805eaf99c74SChris Wilson * setup. 806eaf99c74SChris Wilson */ 807eaf99c74SChris Wilson static void drm_connector_get_cmdline_mode(struct drm_connector *connector) 808eaf99c74SChris Wilson { 809eaf99c74SChris Wilson struct drm_cmdline_mode *mode = &connector->cmdline_mode; 810eaf99c74SChris Wilson char *option = NULL; 811eaf99c74SChris Wilson 812eaf99c74SChris Wilson if (fb_get_options(connector->name, &option)) 813eaf99c74SChris Wilson return; 814eaf99c74SChris Wilson 815eaf99c74SChris Wilson if (!drm_mode_parse_command_line_for_connector(option, 816eaf99c74SChris Wilson connector, 817eaf99c74SChris Wilson mode)) 818eaf99c74SChris Wilson return; 819eaf99c74SChris Wilson 820eaf99c74SChris Wilson if (mode->force) { 821eaf99c74SChris Wilson const char *s; 822eaf99c74SChris Wilson 823eaf99c74SChris Wilson switch (mode->force) { 824eaf99c74SChris Wilson case DRM_FORCE_OFF: 825eaf99c74SChris Wilson s = "OFF"; 826eaf99c74SChris Wilson break; 827eaf99c74SChris Wilson case DRM_FORCE_ON_DIGITAL: 828eaf99c74SChris Wilson s = "ON - dig"; 829eaf99c74SChris Wilson break; 830eaf99c74SChris Wilson default: 831eaf99c74SChris Wilson case DRM_FORCE_ON: 832eaf99c74SChris Wilson s = "ON"; 833eaf99c74SChris Wilson break; 834eaf99c74SChris Wilson } 835eaf99c74SChris Wilson 836eaf99c74SChris Wilson DRM_INFO("forcing %s connector %s\n", connector->name, s); 837eaf99c74SChris Wilson connector->force = mode->force; 838eaf99c74SChris Wilson } 839eaf99c74SChris Wilson 840eaf99c74SChris Wilson DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", 841eaf99c74SChris Wilson connector->name, 842eaf99c74SChris Wilson mode->xres, mode->yres, 843eaf99c74SChris Wilson mode->refresh_specified ? mode->refresh : 60, 844eaf99c74SChris Wilson mode->rb ? " reduced blanking" : "", 845eaf99c74SChris Wilson mode->margins ? " with margins" : "", 846eaf99c74SChris Wilson mode->interlace ? " interlaced" : ""); 847eaf99c74SChris Wilson } 848eaf99c74SChris Wilson 849eaf99c74SChris Wilson /** 850f453ba04SDave Airlie * drm_connector_init - Init a preallocated connector 851f453ba04SDave Airlie * @dev: DRM device 852f453ba04SDave Airlie * @connector: the connector to init 853f453ba04SDave Airlie * @funcs: callbacks for this connector 854065a50edSDaniel Vetter * @connector_type: user visible type of the connector 855f453ba04SDave Airlie * 856f453ba04SDave Airlie * Initialises a preallocated connector. Connectors should be 857f453ba04SDave Airlie * subclassed as part of driver connector objects. 8586bfc56aaSVille Syrjälä * 859c8e32cc1SDaniel Vetter * Returns: 8606bfc56aaSVille Syrjälä * Zero on success, error code on failure. 861f453ba04SDave Airlie */ 8626bfc56aaSVille Syrjälä int drm_connector_init(struct drm_device *dev, 863f453ba04SDave Airlie struct drm_connector *connector, 864f453ba04SDave Airlie const struct drm_connector_funcs *funcs, 865f453ba04SDave Airlie int connector_type) 866f453ba04SDave Airlie { 867ae16c597SRob Clark struct drm_mode_config *config = &dev->mode_config; 8686bfc56aaSVille Syrjälä int ret; 869b21e3afeSIlia Mirkin struct ida *connector_ida = 870b21e3afeSIlia Mirkin &drm_connector_enum_list[connector_type].ida; 8716bfc56aaSVille Syrjälä 87284849903SDaniel Vetter drm_modeset_lock_all(dev); 873f453ba04SDave Airlie 8742ee39452SDave Airlie ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); 8756bfc56aaSVille Syrjälä if (ret) 8762abdd313SJani Nikula goto out_unlock; 8776bfc56aaSVille Syrjälä 8787e3bdf4aSPaulo Zanoni connector->base.properties = &connector->properties; 879f453ba04SDave Airlie connector->dev = dev; 880f453ba04SDave Airlie connector->funcs = funcs; 881f453ba04SDave Airlie connector->connector_type = connector_type; 882f453ba04SDave Airlie connector->connector_type_id = 883b21e3afeSIlia Mirkin ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); 884b21e3afeSIlia Mirkin if (connector->connector_type_id < 0) { 885b21e3afeSIlia Mirkin ret = connector->connector_type_id; 8862abdd313SJani Nikula goto out_put; 887b21e3afeSIlia Mirkin } 8882abdd313SJani Nikula connector->name = 8892abdd313SJani Nikula kasprintf(GFP_KERNEL, "%s-%d", 8902abdd313SJani Nikula drm_connector_enum_list[connector_type].name, 8912abdd313SJani Nikula connector->connector_type_id); 8922abdd313SJani Nikula if (!connector->name) { 8932abdd313SJani Nikula ret = -ENOMEM; 8942abdd313SJani Nikula goto out_put; 8952abdd313SJani Nikula } 8962abdd313SJani Nikula 897f453ba04SDave Airlie INIT_LIST_HEAD(&connector->probed_modes); 898f453ba04SDave Airlie INIT_LIST_HEAD(&connector->modes); 899f453ba04SDave Airlie connector->edid_blob_ptr = NULL; 9005e2cb2f6SDaniel Vetter connector->status = connector_status_unknown; 901f453ba04SDave Airlie 902eaf99c74SChris Wilson drm_connector_get_cmdline_mode(connector); 903eaf99c74SChris Wilson 904c7eb76f4SDaniel Vetter /* We should add connectors at the end to avoid upsetting the connector 905c7eb76f4SDaniel Vetter * index too much. */ 906ae16c597SRob Clark list_add_tail(&connector->head, &config->connector_list); 907ae16c597SRob Clark config->num_connector++; 908f453ba04SDave Airlie 909a7331e5cSThomas Hellstrom if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) 91058495563SRob Clark drm_object_attach_property(&connector->base, 911ae16c597SRob Clark config->edid_property, 912a7331e5cSThomas Hellstrom 0); 913f453ba04SDave Airlie 91458495563SRob Clark drm_object_attach_property(&connector->base, 915ae16c597SRob Clark config->dpms_property, 0); 916ae16c597SRob Clark 917ae16c597SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 918ae16c597SRob Clark drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); 919ae16c597SRob Clark } 920f453ba04SDave Airlie 92130f65707SThomas Wood connector->debugfs_entry = NULL; 92230f65707SThomas Wood 9232abdd313SJani Nikula out_put: 9242abdd313SJani Nikula if (ret) 9252abdd313SJani Nikula drm_mode_object_put(dev, &connector->base); 9262abdd313SJani Nikula 9272abdd313SJani Nikula out_unlock: 92884849903SDaniel Vetter drm_modeset_unlock_all(dev); 9296bfc56aaSVille Syrjälä 9306bfc56aaSVille Syrjälä return ret; 931f453ba04SDave Airlie } 932f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_init); 933f453ba04SDave Airlie 934f453ba04SDave Airlie /** 935f453ba04SDave Airlie * drm_connector_cleanup - cleans up an initialised connector 936f453ba04SDave Airlie * @connector: connector to cleanup 937f453ba04SDave Airlie * 938f453ba04SDave Airlie * Cleans up the connector but doesn't free the object. 939f453ba04SDave Airlie */ 940f453ba04SDave Airlie void drm_connector_cleanup(struct drm_connector *connector) 941f453ba04SDave Airlie { 942f453ba04SDave Airlie struct drm_device *dev = connector->dev; 943f453ba04SDave Airlie struct drm_display_mode *mode, *t; 944f453ba04SDave Airlie 94540d9b043SDave Airlie if (connector->tile_group) { 94640d9b043SDave Airlie drm_mode_put_tile_group(dev, connector->tile_group); 94740d9b043SDave Airlie connector->tile_group = NULL; 94840d9b043SDave Airlie } 94940d9b043SDave Airlie 950f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 951f453ba04SDave Airlie drm_mode_remove(connector, mode); 952f453ba04SDave Airlie 953f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->modes, head) 954f453ba04SDave Airlie drm_mode_remove(connector, mode); 955f453ba04SDave Airlie 956b21e3afeSIlia Mirkin ida_remove(&drm_connector_enum_list[connector->connector_type].ida, 957b21e3afeSIlia Mirkin connector->connector_type_id); 958b21e3afeSIlia Mirkin 959b5571e9dSBoris Brezillon kfree(connector->display_info.bus_formats); 960f453ba04SDave Airlie drm_mode_object_put(dev, &connector->base); 9612abdd313SJani Nikula kfree(connector->name); 9622abdd313SJani Nikula connector->name = NULL; 963f453ba04SDave Airlie list_del(&connector->head); 9646380c509SJoonyoung Shim dev->mode_config.num_connector--; 9653009c037SThierry Reding 9663009c037SThierry Reding WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); 9673009c037SThierry Reding if (connector->state && connector->funcs->atomic_destroy_state) 9683009c037SThierry Reding connector->funcs->atomic_destroy_state(connector, 9693009c037SThierry Reding connector->state); 970a18c0af1SThierry Reding 971a18c0af1SThierry Reding memset(connector, 0, sizeof(*connector)); 972f453ba04SDave Airlie } 973f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_cleanup); 974f453ba04SDave Airlie 975c8e32cc1SDaniel Vetter /** 97610f637bfSDaniel Vetter * drm_connector_index - find the index of a registered connector 97710f637bfSDaniel Vetter * @connector: connector to find index for 97810f637bfSDaniel Vetter * 97910f637bfSDaniel Vetter * Given a registered connector, return the index of that connector within a DRM 98010f637bfSDaniel Vetter * device's list of connectors. 98110f637bfSDaniel Vetter */ 98210f637bfSDaniel Vetter unsigned int drm_connector_index(struct drm_connector *connector) 98310f637bfSDaniel Vetter { 98410f637bfSDaniel Vetter unsigned int index = 0; 98510f637bfSDaniel Vetter struct drm_connector *tmp; 986c7eb76f4SDaniel Vetter struct drm_mode_config *config = &connector->dev->mode_config; 987c7eb76f4SDaniel Vetter 988c7eb76f4SDaniel Vetter WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); 98910f637bfSDaniel Vetter 99010f637bfSDaniel Vetter list_for_each_entry(tmp, &connector->dev->mode_config.connector_list, head) { 99110f637bfSDaniel Vetter if (tmp == connector) 99210f637bfSDaniel Vetter return index; 99310f637bfSDaniel Vetter 99410f637bfSDaniel Vetter index++; 99510f637bfSDaniel Vetter } 99610f637bfSDaniel Vetter 99710f637bfSDaniel Vetter BUG(); 99810f637bfSDaniel Vetter } 99910f637bfSDaniel Vetter EXPORT_SYMBOL(drm_connector_index); 100010f637bfSDaniel Vetter 100110f637bfSDaniel Vetter /** 100234ea3d38SThomas Wood * drm_connector_register - register a connector 100334ea3d38SThomas Wood * @connector: the connector to register 100434ea3d38SThomas Wood * 100534ea3d38SThomas Wood * Register userspace interfaces for a connector 100634ea3d38SThomas Wood * 100734ea3d38SThomas Wood * Returns: 100834ea3d38SThomas Wood * Zero on success, error code on failure. 100934ea3d38SThomas Wood */ 101034ea3d38SThomas Wood int drm_connector_register(struct drm_connector *connector) 101134ea3d38SThomas Wood { 101230f65707SThomas Wood int ret; 101330f65707SThomas Wood 10142ee39452SDave Airlie drm_mode_object_register(connector->dev, &connector->base); 10152ee39452SDave Airlie 101630f65707SThomas Wood ret = drm_sysfs_connector_add(connector); 101730f65707SThomas Wood if (ret) 101830f65707SThomas Wood return ret; 101930f65707SThomas Wood 102030f65707SThomas Wood ret = drm_debugfs_connector_add(connector); 102130f65707SThomas Wood if (ret) { 102230f65707SThomas Wood drm_sysfs_connector_remove(connector); 102330f65707SThomas Wood return ret; 102430f65707SThomas Wood } 102530f65707SThomas Wood 102630f65707SThomas Wood return 0; 102734ea3d38SThomas Wood } 102834ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_register); 102934ea3d38SThomas Wood 103034ea3d38SThomas Wood /** 103134ea3d38SThomas Wood * drm_connector_unregister - unregister a connector 103234ea3d38SThomas Wood * @connector: the connector to unregister 103334ea3d38SThomas Wood * 103434ea3d38SThomas Wood * Unregister userspace interfaces for a connector 103534ea3d38SThomas Wood */ 103634ea3d38SThomas Wood void drm_connector_unregister(struct drm_connector *connector) 103734ea3d38SThomas Wood { 103834ea3d38SThomas Wood drm_sysfs_connector_remove(connector); 103930f65707SThomas Wood drm_debugfs_connector_remove(connector); 104034ea3d38SThomas Wood } 104134ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_unregister); 104234ea3d38SThomas Wood 104334ea3d38SThomas Wood 104434ea3d38SThomas Wood /** 1045c8e32cc1SDaniel Vetter * drm_connector_unplug_all - unregister connector userspace interfaces 1046c8e32cc1SDaniel Vetter * @dev: drm device 1047c8e32cc1SDaniel Vetter * 1048c8e32cc1SDaniel Vetter * This function unregisters all connector userspace interfaces in sysfs. Should 1049c8e32cc1SDaniel Vetter * be call when the device is disconnected, e.g. from an usb driver's 1050c8e32cc1SDaniel Vetter * ->disconnect callback. 1051c8e32cc1SDaniel Vetter */ 1052cbc7e221SDave Airlie void drm_connector_unplug_all(struct drm_device *dev) 1053cbc7e221SDave Airlie { 1054cbc7e221SDave Airlie struct drm_connector *connector; 1055cbc7e221SDave Airlie 1056cbc7e221SDave Airlie /* taking the mode config mutex ends up in a clash with sysfs */ 1057cbc7e221SDave Airlie list_for_each_entry(connector, &dev->mode_config.connector_list, head) 105834ea3d38SThomas Wood drm_connector_unregister(connector); 1059cbc7e221SDave Airlie 1060cbc7e221SDave Airlie } 1061cbc7e221SDave Airlie EXPORT_SYMBOL(drm_connector_unplug_all); 1062cbc7e221SDave Airlie 1063c8e32cc1SDaniel Vetter /** 1064c8e32cc1SDaniel Vetter * drm_encoder_init - Init a preallocated encoder 1065c8e32cc1SDaniel Vetter * @dev: drm device 1066c8e32cc1SDaniel Vetter * @encoder: the encoder to init 1067c8e32cc1SDaniel Vetter * @funcs: callbacks for this encoder 1068c8e32cc1SDaniel Vetter * @encoder_type: user visible type of the encoder 1069c8e32cc1SDaniel Vetter * 1070c8e32cc1SDaniel Vetter * Initialises a preallocated encoder. Encoder should be 1071c8e32cc1SDaniel Vetter * subclassed as part of driver encoder objects. 1072c8e32cc1SDaniel Vetter * 1073c8e32cc1SDaniel Vetter * Returns: 1074c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 1075c8e32cc1SDaniel Vetter */ 10766bfc56aaSVille Syrjälä int drm_encoder_init(struct drm_device *dev, 1077f453ba04SDave Airlie struct drm_encoder *encoder, 1078f453ba04SDave Airlie const struct drm_encoder_funcs *funcs, 1079f453ba04SDave Airlie int encoder_type) 1080f453ba04SDave Airlie { 10816bfc56aaSVille Syrjälä int ret; 10826bfc56aaSVille Syrjälä 108384849903SDaniel Vetter drm_modeset_lock_all(dev); 1084f453ba04SDave Airlie 10856bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); 10866bfc56aaSVille Syrjälä if (ret) 1087e5748946SJani Nikula goto out_unlock; 1088f453ba04SDave Airlie 10896bfc56aaSVille Syrjälä encoder->dev = dev; 1090f453ba04SDave Airlie encoder->encoder_type = encoder_type; 1091f453ba04SDave Airlie encoder->funcs = funcs; 1092e5748946SJani Nikula encoder->name = kasprintf(GFP_KERNEL, "%s-%d", 1093e5748946SJani Nikula drm_encoder_enum_list[encoder_type].name, 1094e5748946SJani Nikula encoder->base.id); 1095e5748946SJani Nikula if (!encoder->name) { 1096e5748946SJani Nikula ret = -ENOMEM; 1097e5748946SJani Nikula goto out_put; 1098e5748946SJani Nikula } 1099f453ba04SDave Airlie 1100f453ba04SDave Airlie list_add_tail(&encoder->head, &dev->mode_config.encoder_list); 1101f453ba04SDave Airlie dev->mode_config.num_encoder++; 1102f453ba04SDave Airlie 1103e5748946SJani Nikula out_put: 1104e5748946SJani Nikula if (ret) 1105e5748946SJani Nikula drm_mode_object_put(dev, &encoder->base); 1106e5748946SJani Nikula 1107e5748946SJani Nikula out_unlock: 110884849903SDaniel Vetter drm_modeset_unlock_all(dev); 11096bfc56aaSVille Syrjälä 11106bfc56aaSVille Syrjälä return ret; 1111f453ba04SDave Airlie } 1112f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_init); 1113f453ba04SDave Airlie 1114c8e32cc1SDaniel Vetter /** 1115c8e32cc1SDaniel Vetter * drm_encoder_cleanup - cleans up an initialised encoder 1116c8e32cc1SDaniel Vetter * @encoder: encoder to cleanup 1117c8e32cc1SDaniel Vetter * 1118c8e32cc1SDaniel Vetter * Cleans up the encoder but doesn't free the object. 1119c8e32cc1SDaniel Vetter */ 1120f453ba04SDave Airlie void drm_encoder_cleanup(struct drm_encoder *encoder) 1121f453ba04SDave Airlie { 1122f453ba04SDave Airlie struct drm_device *dev = encoder->dev; 11234dfd909fSThierry Reding 112484849903SDaniel Vetter drm_modeset_lock_all(dev); 1125f453ba04SDave Airlie drm_mode_object_put(dev, &encoder->base); 1126e5748946SJani Nikula kfree(encoder->name); 1127f453ba04SDave Airlie list_del(&encoder->head); 11286380c509SJoonyoung Shim dev->mode_config.num_encoder--; 112984849903SDaniel Vetter drm_modeset_unlock_all(dev); 1130a18c0af1SThierry Reding 1131a18c0af1SThierry Reding memset(encoder, 0, sizeof(*encoder)); 1132f453ba04SDave Airlie } 1133f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_cleanup); 1134f453ba04SDave Airlie 113535f2c3aeSVille Syrjälä /** 1136dc415ff9SMatt Roper * drm_universal_plane_init - Initialize a new universal plane object 113735f2c3aeSVille Syrjälä * @dev: DRM device 113835f2c3aeSVille Syrjälä * @plane: plane object to init 113935f2c3aeSVille Syrjälä * @possible_crtcs: bitmask of possible CRTCs 114035f2c3aeSVille Syrjälä * @funcs: callbacks for the new plane 114135f2c3aeSVille Syrjälä * @formats: array of supported formats (%DRM_FORMAT_*) 114235f2c3aeSVille Syrjälä * @format_count: number of elements in @formats 1143dc415ff9SMatt Roper * @type: type of plane (overlay, primary, cursor) 114435f2c3aeSVille Syrjälä * 1145dc415ff9SMatt Roper * Initializes a plane object of type @type. 114635f2c3aeSVille Syrjälä * 1147c8e32cc1SDaniel Vetter * Returns: 114835f2c3aeSVille Syrjälä * Zero on success, error code on failure. 114935f2c3aeSVille Syrjälä */ 1150dc415ff9SMatt Roper int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, 11518cf5c917SJesse Barnes unsigned long possible_crtcs, 11528cf5c917SJesse Barnes const struct drm_plane_funcs *funcs, 11530a7eb243SRob Clark const uint32_t *formats, uint32_t format_count, 1154dc415ff9SMatt Roper enum drm_plane_type type) 11558cf5c917SJesse Barnes { 11566b4959f4SRob Clark struct drm_mode_config *config = &dev->mode_config; 11576bfc56aaSVille Syrjälä int ret; 11586bfc56aaSVille Syrjälä 11596bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); 11606bfc56aaSVille Syrjälä if (ret) 1161baf698b0SDaniel Vetter return ret; 11626bfc56aaSVille Syrjälä 11634d02e2deSDaniel Vetter drm_modeset_lock_init(&plane->mutex); 11644d02e2deSDaniel Vetter 11654d93914aSRob Clark plane->base.properties = &plane->properties; 11668cf5c917SJesse Barnes plane->dev = dev; 11678cf5c917SJesse Barnes plane->funcs = funcs; 11682f6c5389SThierry Reding plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), 11698cf5c917SJesse Barnes GFP_KERNEL); 11708cf5c917SJesse Barnes if (!plane->format_types) { 11718cf5c917SJesse Barnes DRM_DEBUG_KMS("out of memory when allocating plane\n"); 11728cf5c917SJesse Barnes drm_mode_object_put(dev, &plane->base); 1173baf698b0SDaniel Vetter return -ENOMEM; 11748cf5c917SJesse Barnes } 11758cf5c917SJesse Barnes 1176308e5bcbSJesse Barnes memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); 11778cf5c917SJesse Barnes plane->format_count = format_count; 11788cf5c917SJesse Barnes plane->possible_crtcs = possible_crtcs; 1179dc415ff9SMatt Roper plane->type = type; 11808cf5c917SJesse Barnes 11816b4959f4SRob Clark list_add_tail(&plane->head, &config->plane_list); 11826b4959f4SRob Clark config->num_total_plane++; 1183e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 11846b4959f4SRob Clark config->num_overlay_plane++; 11858cf5c917SJesse Barnes 11869922ab5aSRob Clark drm_object_attach_property(&plane->base, 11876b4959f4SRob Clark config->plane_type_property, 11889922ab5aSRob Clark plane->type); 11899922ab5aSRob Clark 11906b4959f4SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 11916b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_fb_id, 0); 11926b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); 11936b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); 11946b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); 11956b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); 11966b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); 11976b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_x, 0); 11986b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_y, 0); 11996b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_w, 0); 12006b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_h, 0); 12016b4959f4SRob Clark } 12026b4959f4SRob Clark 1203baf698b0SDaniel Vetter return 0; 12048cf5c917SJesse Barnes } 1205dc415ff9SMatt Roper EXPORT_SYMBOL(drm_universal_plane_init); 1206dc415ff9SMatt Roper 1207dc415ff9SMatt Roper /** 1208dc415ff9SMatt Roper * drm_plane_init - Initialize a legacy plane 1209dc415ff9SMatt Roper * @dev: DRM device 1210dc415ff9SMatt Roper * @plane: plane object to init 1211dc415ff9SMatt Roper * @possible_crtcs: bitmask of possible CRTCs 1212dc415ff9SMatt Roper * @funcs: callbacks for the new plane 1213dc415ff9SMatt Roper * @formats: array of supported formats (%DRM_FORMAT_*) 1214dc415ff9SMatt Roper * @format_count: number of elements in @formats 1215dc415ff9SMatt Roper * @is_primary: plane type (primary vs overlay) 1216dc415ff9SMatt Roper * 1217dc415ff9SMatt Roper * Legacy API to initialize a DRM plane. 1218dc415ff9SMatt Roper * 1219dc415ff9SMatt Roper * New drivers should call drm_universal_plane_init() instead. 1220dc415ff9SMatt Roper * 1221dc415ff9SMatt Roper * Returns: 1222dc415ff9SMatt Roper * Zero on success, error code on failure. 1223dc415ff9SMatt Roper */ 1224dc415ff9SMatt Roper int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, 1225dc415ff9SMatt Roper unsigned long possible_crtcs, 1226dc415ff9SMatt Roper const struct drm_plane_funcs *funcs, 1227dc415ff9SMatt Roper const uint32_t *formats, uint32_t format_count, 1228dc415ff9SMatt Roper bool is_primary) 1229dc415ff9SMatt Roper { 1230dc415ff9SMatt Roper enum drm_plane_type type; 1231dc415ff9SMatt Roper 1232dc415ff9SMatt Roper type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; 1233dc415ff9SMatt Roper return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, 1234dc415ff9SMatt Roper formats, format_count, type); 1235dc415ff9SMatt Roper } 12368cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_init); 12378cf5c917SJesse Barnes 123835f2c3aeSVille Syrjälä /** 123935f2c3aeSVille Syrjälä * drm_plane_cleanup - Clean up the core plane usage 124035f2c3aeSVille Syrjälä * @plane: plane to cleanup 124135f2c3aeSVille Syrjälä * 124235f2c3aeSVille Syrjälä * This function cleans up @plane and removes it from the DRM mode setting 124335f2c3aeSVille Syrjälä * core. Note that the function does *not* free the plane structure itself, 124435f2c3aeSVille Syrjälä * this is the responsibility of the caller. 124535f2c3aeSVille Syrjälä */ 12468cf5c917SJesse Barnes void drm_plane_cleanup(struct drm_plane *plane) 12478cf5c917SJesse Barnes { 12488cf5c917SJesse Barnes struct drm_device *dev = plane->dev; 12498cf5c917SJesse Barnes 125084849903SDaniel Vetter drm_modeset_lock_all(dev); 12518cf5c917SJesse Barnes kfree(plane->format_types); 12528cf5c917SJesse Barnes drm_mode_object_put(dev, &plane->base); 1253dc415ff9SMatt Roper 1254dc415ff9SMatt Roper BUG_ON(list_empty(&plane->head)); 1255dc415ff9SMatt Roper 12568cf5c917SJesse Barnes list_del(&plane->head); 1257e27dde3eSMatt Roper dev->mode_config.num_total_plane--; 1258e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 1259e27dde3eSMatt Roper dev->mode_config.num_overlay_plane--; 126084849903SDaniel Vetter drm_modeset_unlock_all(dev); 12613009c037SThierry Reding 12623009c037SThierry Reding WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); 12633009c037SThierry Reding if (plane->state && plane->funcs->atomic_destroy_state) 12643009c037SThierry Reding plane->funcs->atomic_destroy_state(plane, plane->state); 1265a18c0af1SThierry Reding 1266a18c0af1SThierry Reding memset(plane, 0, sizeof(*plane)); 12678cf5c917SJesse Barnes } 12688cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_cleanup); 12698cf5c917SJesse Barnes 127035f2c3aeSVille Syrjälä /** 127110f637bfSDaniel Vetter * drm_plane_index - find the index of a registered plane 127210f637bfSDaniel Vetter * @plane: plane to find index for 127310f637bfSDaniel Vetter * 127410f637bfSDaniel Vetter * Given a registered plane, return the index of that CRTC within a DRM 127510f637bfSDaniel Vetter * device's list of planes. 127610f637bfSDaniel Vetter */ 127710f637bfSDaniel Vetter unsigned int drm_plane_index(struct drm_plane *plane) 127810f637bfSDaniel Vetter { 127910f637bfSDaniel Vetter unsigned int index = 0; 128010f637bfSDaniel Vetter struct drm_plane *tmp; 128110f637bfSDaniel Vetter 128210f637bfSDaniel Vetter list_for_each_entry(tmp, &plane->dev->mode_config.plane_list, head) { 128310f637bfSDaniel Vetter if (tmp == plane) 128410f637bfSDaniel Vetter return index; 128510f637bfSDaniel Vetter 128610f637bfSDaniel Vetter index++; 128710f637bfSDaniel Vetter } 128810f637bfSDaniel Vetter 128910f637bfSDaniel Vetter BUG(); 129010f637bfSDaniel Vetter } 129110f637bfSDaniel Vetter EXPORT_SYMBOL(drm_plane_index); 129210f637bfSDaniel Vetter 129310f637bfSDaniel Vetter /** 1294f81338a5SChandra Konduru * drm_plane_from_index - find the registered plane at an index 1295f81338a5SChandra Konduru * @dev: DRM device 1296f81338a5SChandra Konduru * @idx: index of registered plane to find for 1297f81338a5SChandra Konduru * 1298f81338a5SChandra Konduru * Given a plane index, return the registered plane from DRM device's 1299f81338a5SChandra Konduru * list of planes with matching index. 1300f81338a5SChandra Konduru */ 1301f81338a5SChandra Konduru struct drm_plane * 1302f81338a5SChandra Konduru drm_plane_from_index(struct drm_device *dev, int idx) 1303f81338a5SChandra Konduru { 1304f81338a5SChandra Konduru struct drm_plane *plane; 1305f81338a5SChandra Konduru unsigned int i = 0; 1306f81338a5SChandra Konduru 1307f81338a5SChandra Konduru list_for_each_entry(plane, &dev->mode_config.plane_list, head) { 1308f81338a5SChandra Konduru if (i == idx) 1309f81338a5SChandra Konduru return plane; 1310f81338a5SChandra Konduru i++; 1311f81338a5SChandra Konduru } 1312f81338a5SChandra Konduru return NULL; 1313f81338a5SChandra Konduru } 1314f81338a5SChandra Konduru EXPORT_SYMBOL(drm_plane_from_index); 1315f81338a5SChandra Konduru 1316f81338a5SChandra Konduru /** 131735f2c3aeSVille Syrjälä * drm_plane_force_disable - Forcibly disable a plane 131835f2c3aeSVille Syrjälä * @plane: plane to disable 131935f2c3aeSVille Syrjälä * 132035f2c3aeSVille Syrjälä * Forces the plane to be disabled. 132135f2c3aeSVille Syrjälä * 132235f2c3aeSVille Syrjälä * Used when the plane's current framebuffer is destroyed, 132335f2c3aeSVille Syrjälä * and when restoring fbdev mode. 132435f2c3aeSVille Syrjälä */ 13259125e618SVille Syrjälä void drm_plane_force_disable(struct drm_plane *plane) 13269125e618SVille Syrjälä { 13279125e618SVille Syrjälä int ret; 13289125e618SVille Syrjälä 13293d30a59bSDaniel Vetter if (!plane->fb) 13309125e618SVille Syrjälä return; 13319125e618SVille Syrjälä 13323d30a59bSDaniel Vetter plane->old_fb = plane->fb; 13339125e618SVille Syrjälä ret = plane->funcs->disable_plane(plane); 1334731cce48SDaniel Vetter if (ret) { 13359125e618SVille Syrjälä DRM_ERROR("failed to disable plane with busy fb\n"); 13363d30a59bSDaniel Vetter plane->old_fb = NULL; 1337731cce48SDaniel Vetter return; 1338731cce48SDaniel Vetter } 13399125e618SVille Syrjälä /* disconnect the plane from the fb and crtc: */ 1340220dd2bcSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 13413d30a59bSDaniel Vetter plane->old_fb = NULL; 13429125e618SVille Syrjälä plane->fb = NULL; 13439125e618SVille Syrjälä plane->crtc = NULL; 13449125e618SVille Syrjälä } 13459125e618SVille Syrjälä EXPORT_SYMBOL(drm_plane_force_disable); 13469125e618SVille Syrjälä 13476b4959f4SRob Clark static int drm_mode_create_standard_properties(struct drm_device *dev) 1348f453ba04SDave Airlie { 1349356af0e1SRob Clark struct drm_property *prop; 1350f453ba04SDave Airlie 1351f453ba04SDave Airlie /* 1352f453ba04SDave Airlie * Standard properties (apply to all connectors) 1353f453ba04SDave Airlie */ 1354356af0e1SRob Clark prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | 1355f453ba04SDave Airlie DRM_MODE_PROP_IMMUTABLE, 1356f453ba04SDave Airlie "EDID", 0); 1357356af0e1SRob Clark if (!prop) 1358356af0e1SRob Clark return -ENOMEM; 1359356af0e1SRob Clark dev->mode_config.edid_property = prop; 1360f453ba04SDave Airlie 1361356af0e1SRob Clark prop = drm_property_create_enum(dev, 0, 13624a67d391SSascha Hauer "DPMS", drm_dpms_enum_list, 13634a67d391SSascha Hauer ARRAY_SIZE(drm_dpms_enum_list)); 1364356af0e1SRob Clark if (!prop) 1365356af0e1SRob Clark return -ENOMEM; 1366356af0e1SRob Clark dev->mode_config.dpms_property = prop; 1367f453ba04SDave Airlie 1368356af0e1SRob Clark prop = drm_property_create(dev, 136943aba7ebSDave Airlie DRM_MODE_PROP_BLOB | 137043aba7ebSDave Airlie DRM_MODE_PROP_IMMUTABLE, 137143aba7ebSDave Airlie "PATH", 0); 1372356af0e1SRob Clark if (!prop) 1373356af0e1SRob Clark return -ENOMEM; 1374356af0e1SRob Clark dev->mode_config.path_property = prop; 137543aba7ebSDave Airlie 1376356af0e1SRob Clark prop = drm_property_create(dev, 13776f134d7bSDave Airlie DRM_MODE_PROP_BLOB | 13786f134d7bSDave Airlie DRM_MODE_PROP_IMMUTABLE, 13796f134d7bSDave Airlie "TILE", 0); 1380356af0e1SRob Clark if (!prop) 1381356af0e1SRob Clark return -ENOMEM; 1382356af0e1SRob Clark dev->mode_config.tile_property = prop; 13836f134d7bSDave Airlie 13846b4959f4SRob Clark prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 13859922ab5aSRob Clark "type", drm_plane_type_enum_list, 13869922ab5aSRob Clark ARRAY_SIZE(drm_plane_type_enum_list)); 13876b4959f4SRob Clark if (!prop) 13886b4959f4SRob Clark return -ENOMEM; 13896b4959f4SRob Clark dev->mode_config.plane_type_property = prop; 13906b4959f4SRob Clark 13916b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 13926b4959f4SRob Clark "SRC_X", 0, UINT_MAX); 13936b4959f4SRob Clark if (!prop) 13946b4959f4SRob Clark return -ENOMEM; 13956b4959f4SRob Clark dev->mode_config.prop_src_x = prop; 13966b4959f4SRob Clark 13976b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 13986b4959f4SRob Clark "SRC_Y", 0, UINT_MAX); 13996b4959f4SRob Clark if (!prop) 14006b4959f4SRob Clark return -ENOMEM; 14016b4959f4SRob Clark dev->mode_config.prop_src_y = prop; 14026b4959f4SRob Clark 14036b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14046b4959f4SRob Clark "SRC_W", 0, UINT_MAX); 14056b4959f4SRob Clark if (!prop) 14066b4959f4SRob Clark return -ENOMEM; 14076b4959f4SRob Clark dev->mode_config.prop_src_w = prop; 14086b4959f4SRob Clark 14096b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14106b4959f4SRob Clark "SRC_H", 0, UINT_MAX); 14116b4959f4SRob Clark if (!prop) 14126b4959f4SRob Clark return -ENOMEM; 14136b4959f4SRob Clark dev->mode_config.prop_src_h = prop; 14146b4959f4SRob Clark 14156b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 14166b4959f4SRob Clark "CRTC_X", INT_MIN, INT_MAX); 14176b4959f4SRob Clark if (!prop) 14186b4959f4SRob Clark return -ENOMEM; 14196b4959f4SRob Clark dev->mode_config.prop_crtc_x = prop; 14206b4959f4SRob Clark 14216b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 14226b4959f4SRob Clark "CRTC_Y", INT_MIN, INT_MAX); 14236b4959f4SRob Clark if (!prop) 14246b4959f4SRob Clark return -ENOMEM; 14256b4959f4SRob Clark dev->mode_config.prop_crtc_y = prop; 14266b4959f4SRob Clark 14276b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14286b4959f4SRob Clark "CRTC_W", 0, INT_MAX); 14296b4959f4SRob Clark if (!prop) 14306b4959f4SRob Clark return -ENOMEM; 14316b4959f4SRob Clark dev->mode_config.prop_crtc_w = prop; 14326b4959f4SRob Clark 14336b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14346b4959f4SRob Clark "CRTC_H", 0, INT_MAX); 14356b4959f4SRob Clark if (!prop) 14366b4959f4SRob Clark return -ENOMEM; 14376b4959f4SRob Clark dev->mode_config.prop_crtc_h = prop; 14386b4959f4SRob Clark 14396b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 14406b4959f4SRob Clark "FB_ID", DRM_MODE_OBJECT_FB); 14416b4959f4SRob Clark if (!prop) 14426b4959f4SRob Clark return -ENOMEM; 14436b4959f4SRob Clark dev->mode_config.prop_fb_id = prop; 14446b4959f4SRob Clark 14456b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 14466b4959f4SRob Clark "CRTC_ID", DRM_MODE_OBJECT_CRTC); 14476b4959f4SRob Clark if (!prop) 14486b4959f4SRob Clark return -ENOMEM; 14496b4959f4SRob Clark dev->mode_config.prop_crtc_id = prop; 14509922ab5aSRob Clark 1451eab3bbefSDaniel Vetter prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, 1452eab3bbefSDaniel Vetter "ACTIVE"); 1453eab3bbefSDaniel Vetter if (!prop) 1454eab3bbefSDaniel Vetter return -ENOMEM; 1455eab3bbefSDaniel Vetter dev->mode_config.prop_active = prop; 1456eab3bbefSDaniel Vetter 14579922ab5aSRob Clark return 0; 14589922ab5aSRob Clark } 14599922ab5aSRob Clark 1460f453ba04SDave Airlie /** 1461f453ba04SDave Airlie * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 1462f453ba04SDave Airlie * @dev: DRM device 1463f453ba04SDave Airlie * 1464f453ba04SDave Airlie * Called by a driver the first time a DVI-I connector is made. 1465f453ba04SDave Airlie */ 1466f453ba04SDave Airlie int drm_mode_create_dvi_i_properties(struct drm_device *dev) 1467f453ba04SDave Airlie { 1468f453ba04SDave Airlie struct drm_property *dvi_i_selector; 1469f453ba04SDave Airlie struct drm_property *dvi_i_subconnector; 1470f453ba04SDave Airlie 1471f453ba04SDave Airlie if (dev->mode_config.dvi_i_select_subconnector_property) 1472f453ba04SDave Airlie return 0; 1473f453ba04SDave Airlie 1474f453ba04SDave Airlie dvi_i_selector = 14754a67d391SSascha Hauer drm_property_create_enum(dev, 0, 1476f453ba04SDave Airlie "select subconnector", 14774a67d391SSascha Hauer drm_dvi_i_select_enum_list, 1478f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_select_enum_list)); 1479f453ba04SDave Airlie dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 1480f453ba04SDave Airlie 14814a67d391SSascha Hauer dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1482f453ba04SDave Airlie "subconnector", 14834a67d391SSascha Hauer drm_dvi_i_subconnector_enum_list, 1484f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 1485f453ba04SDave Airlie dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 1486f453ba04SDave Airlie 1487f453ba04SDave Airlie return 0; 1488f453ba04SDave Airlie } 1489f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 1490f453ba04SDave Airlie 1491f453ba04SDave Airlie /** 1492f453ba04SDave Airlie * drm_create_tv_properties - create TV specific connector properties 1493f453ba04SDave Airlie * @dev: DRM device 1494f453ba04SDave Airlie * @num_modes: number of different TV formats (modes) supported 1495f453ba04SDave Airlie * @modes: array of pointers to strings containing name of each format 1496f453ba04SDave Airlie * 1497f453ba04SDave Airlie * Called by a driver's TV initialization routine, this function creates 1498f453ba04SDave Airlie * the TV specific connector properties for a given device. Caller is 1499f453ba04SDave Airlie * responsible for allocating a list of format names and passing them to 1500f453ba04SDave Airlie * this routine. 1501f453ba04SDave Airlie */ 15022f763312SThierry Reding int drm_mode_create_tv_properties(struct drm_device *dev, 15032f763312SThierry Reding unsigned int num_modes, 1504f453ba04SDave Airlie char *modes[]) 1505f453ba04SDave Airlie { 1506f453ba04SDave Airlie struct drm_property *tv_selector; 1507f453ba04SDave Airlie struct drm_property *tv_subconnector; 15082f763312SThierry Reding unsigned int i; 1509f453ba04SDave Airlie 1510f453ba04SDave Airlie if (dev->mode_config.tv_select_subconnector_property) 1511f453ba04SDave Airlie return 0; 1512f453ba04SDave Airlie 1513f453ba04SDave Airlie /* 1514f453ba04SDave Airlie * Basic connector properties 1515f453ba04SDave Airlie */ 15164a67d391SSascha Hauer tv_selector = drm_property_create_enum(dev, 0, 1517f453ba04SDave Airlie "select subconnector", 15184a67d391SSascha Hauer drm_tv_select_enum_list, 1519f453ba04SDave Airlie ARRAY_SIZE(drm_tv_select_enum_list)); 1520f453ba04SDave Airlie dev->mode_config.tv_select_subconnector_property = tv_selector; 1521f453ba04SDave Airlie 1522f453ba04SDave Airlie tv_subconnector = 15234a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 15244a67d391SSascha Hauer "subconnector", 15254a67d391SSascha Hauer drm_tv_subconnector_enum_list, 1526f453ba04SDave Airlie ARRAY_SIZE(drm_tv_subconnector_enum_list)); 1527f453ba04SDave Airlie dev->mode_config.tv_subconnector_property = tv_subconnector; 1528f453ba04SDave Airlie 1529f453ba04SDave Airlie /* 1530f453ba04SDave Airlie * Other, TV specific properties: margins & TV modes. 1531f453ba04SDave Airlie */ 1532f453ba04SDave Airlie dev->mode_config.tv_left_margin_property = 1533d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "left margin", 0, 100); 1534f453ba04SDave Airlie 1535f453ba04SDave Airlie dev->mode_config.tv_right_margin_property = 1536d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "right margin", 0, 100); 1537f453ba04SDave Airlie 1538f453ba04SDave Airlie dev->mode_config.tv_top_margin_property = 1539d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "top margin", 0, 100); 1540f453ba04SDave Airlie 1541f453ba04SDave Airlie dev->mode_config.tv_bottom_margin_property = 1542d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "bottom margin", 0, 100); 1543f453ba04SDave Airlie 1544f453ba04SDave Airlie dev->mode_config.tv_mode_property = 1545f453ba04SDave Airlie drm_property_create(dev, DRM_MODE_PROP_ENUM, 1546f453ba04SDave Airlie "mode", num_modes); 1547f453ba04SDave Airlie for (i = 0; i < num_modes; i++) 1548f453ba04SDave Airlie drm_property_add_enum(dev->mode_config.tv_mode_property, i, 1549f453ba04SDave Airlie i, modes[i]); 1550f453ba04SDave Airlie 1551b6b7902eSFrancisco Jerez dev->mode_config.tv_brightness_property = 1552d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "brightness", 0, 100); 1553b6b7902eSFrancisco Jerez 1554b6b7902eSFrancisco Jerez dev->mode_config.tv_contrast_property = 1555d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "contrast", 0, 100); 1556b6b7902eSFrancisco Jerez 1557b6b7902eSFrancisco Jerez dev->mode_config.tv_flicker_reduction_property = 1558d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 1559b6b7902eSFrancisco Jerez 1560a75f0236SFrancisco Jerez dev->mode_config.tv_overscan_property = 1561d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "overscan", 0, 100); 1562a75f0236SFrancisco Jerez 1563a75f0236SFrancisco Jerez dev->mode_config.tv_saturation_property = 1564d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "saturation", 0, 100); 1565a75f0236SFrancisco Jerez 1566a75f0236SFrancisco Jerez dev->mode_config.tv_hue_property = 1567d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "hue", 0, 100); 1568a75f0236SFrancisco Jerez 1569f453ba04SDave Airlie return 0; 1570f453ba04SDave Airlie } 1571f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_tv_properties); 1572f453ba04SDave Airlie 1573f453ba04SDave Airlie /** 1574f453ba04SDave Airlie * drm_mode_create_scaling_mode_property - create scaling mode property 1575f453ba04SDave Airlie * @dev: DRM device 1576f453ba04SDave Airlie * 1577f453ba04SDave Airlie * Called by a driver the first time it's needed, must be attached to desired 1578f453ba04SDave Airlie * connectors. 1579f453ba04SDave Airlie */ 1580f453ba04SDave Airlie int drm_mode_create_scaling_mode_property(struct drm_device *dev) 1581f453ba04SDave Airlie { 1582f453ba04SDave Airlie struct drm_property *scaling_mode; 1583f453ba04SDave Airlie 1584f453ba04SDave Airlie if (dev->mode_config.scaling_mode_property) 1585f453ba04SDave Airlie return 0; 1586f453ba04SDave Airlie 1587f453ba04SDave Airlie scaling_mode = 15884a67d391SSascha Hauer drm_property_create_enum(dev, 0, "scaling mode", 15894a67d391SSascha Hauer drm_scaling_mode_enum_list, 1590f453ba04SDave Airlie ARRAY_SIZE(drm_scaling_mode_enum_list)); 1591f453ba04SDave Airlie 1592f453ba04SDave Airlie dev->mode_config.scaling_mode_property = scaling_mode; 1593f453ba04SDave Airlie 1594f453ba04SDave Airlie return 0; 1595f453ba04SDave Airlie } 1596f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 1597f453ba04SDave Airlie 1598f453ba04SDave Airlie /** 1599ff587e45SVandana Kannan * drm_mode_create_aspect_ratio_property - create aspect ratio property 1600ff587e45SVandana Kannan * @dev: DRM device 1601ff587e45SVandana Kannan * 1602ff587e45SVandana Kannan * Called by a driver the first time it's needed, must be attached to desired 1603ff587e45SVandana Kannan * connectors. 1604ff587e45SVandana Kannan * 1605ff587e45SVandana Kannan * Returns: 16061a498633SDaniel Vetter * Zero on success, negative errno on failure. 1607ff587e45SVandana Kannan */ 1608ff587e45SVandana Kannan int drm_mode_create_aspect_ratio_property(struct drm_device *dev) 1609ff587e45SVandana Kannan { 1610ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property) 1611ff587e45SVandana Kannan return 0; 1612ff587e45SVandana Kannan 1613ff587e45SVandana Kannan dev->mode_config.aspect_ratio_property = 1614ff587e45SVandana Kannan drm_property_create_enum(dev, 0, "aspect ratio", 1615ff587e45SVandana Kannan drm_aspect_ratio_enum_list, 1616ff587e45SVandana Kannan ARRAY_SIZE(drm_aspect_ratio_enum_list)); 1617ff587e45SVandana Kannan 1618ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property == NULL) 1619ff587e45SVandana Kannan return -ENOMEM; 1620ff587e45SVandana Kannan 1621ff587e45SVandana Kannan return 0; 1622ff587e45SVandana Kannan } 1623ff587e45SVandana Kannan EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); 1624ff587e45SVandana Kannan 1625ff587e45SVandana Kannan /** 1626884840aaSJakob Bornecrantz * drm_mode_create_dirty_property - create dirty property 1627884840aaSJakob Bornecrantz * @dev: DRM device 1628884840aaSJakob Bornecrantz * 1629884840aaSJakob Bornecrantz * Called by a driver the first time it's needed, must be attached to desired 1630884840aaSJakob Bornecrantz * connectors. 1631884840aaSJakob Bornecrantz */ 1632884840aaSJakob Bornecrantz int drm_mode_create_dirty_info_property(struct drm_device *dev) 1633884840aaSJakob Bornecrantz { 1634884840aaSJakob Bornecrantz struct drm_property *dirty_info; 1635884840aaSJakob Bornecrantz 1636884840aaSJakob Bornecrantz if (dev->mode_config.dirty_info_property) 1637884840aaSJakob Bornecrantz return 0; 1638884840aaSJakob Bornecrantz 1639884840aaSJakob Bornecrantz dirty_info = 16404a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1641884840aaSJakob Bornecrantz "dirty", 16424a67d391SSascha Hauer drm_dirty_info_enum_list, 1643884840aaSJakob Bornecrantz ARRAY_SIZE(drm_dirty_info_enum_list)); 1644884840aaSJakob Bornecrantz dev->mode_config.dirty_info_property = dirty_info; 1645884840aaSJakob Bornecrantz 1646884840aaSJakob Bornecrantz return 0; 1647884840aaSJakob Bornecrantz } 1648884840aaSJakob Bornecrantz EXPORT_SYMBOL(drm_mode_create_dirty_info_property); 1649884840aaSJakob Bornecrantz 16505bb2bbf5SDave Airlie /** 16515bb2bbf5SDave Airlie * drm_mode_create_suggested_offset_properties - create suggests offset properties 16525bb2bbf5SDave Airlie * @dev: DRM device 16535bb2bbf5SDave Airlie * 16545bb2bbf5SDave Airlie * Create the the suggested x/y offset property for connectors. 16555bb2bbf5SDave Airlie */ 16565bb2bbf5SDave Airlie int drm_mode_create_suggested_offset_properties(struct drm_device *dev) 16575bb2bbf5SDave Airlie { 16585bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) 16595bb2bbf5SDave Airlie return 0; 16605bb2bbf5SDave Airlie 16615bb2bbf5SDave Airlie dev->mode_config.suggested_x_property = 16625bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); 16635bb2bbf5SDave Airlie 16645bb2bbf5SDave Airlie dev->mode_config.suggested_y_property = 16655bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); 16665bb2bbf5SDave Airlie 16675bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property == NULL || 16685bb2bbf5SDave Airlie dev->mode_config.suggested_y_property == NULL) 16695bb2bbf5SDave Airlie return -ENOMEM; 16705bb2bbf5SDave Airlie return 0; 16715bb2bbf5SDave Airlie } 16725bb2bbf5SDave Airlie EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); 16735bb2bbf5SDave Airlie 1674ea9cbb06SVille Syrjälä static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) 1675f453ba04SDave Airlie { 1676f453ba04SDave Airlie uint32_t total_objects = 0; 1677f453ba04SDave Airlie 1678f453ba04SDave Airlie total_objects += dev->mode_config.num_crtc; 1679f453ba04SDave Airlie total_objects += dev->mode_config.num_connector; 1680f453ba04SDave Airlie total_objects += dev->mode_config.num_encoder; 1681f453ba04SDave Airlie 1682bd3f0ff9SThierry Reding group->id_list = kcalloc(total_objects, sizeof(uint32_t), GFP_KERNEL); 1683f453ba04SDave Airlie if (!group->id_list) 1684f453ba04SDave Airlie return -ENOMEM; 1685f453ba04SDave Airlie 1686f453ba04SDave Airlie group->num_crtcs = 0; 1687f453ba04SDave Airlie group->num_connectors = 0; 1688f453ba04SDave Airlie group->num_encoders = 0; 1689f453ba04SDave Airlie return 0; 1690f453ba04SDave Airlie } 1691f453ba04SDave Airlie 1692ad222799SDave Airlie void drm_mode_group_destroy(struct drm_mode_group *group) 1693ad222799SDave Airlie { 1694ad222799SDave Airlie kfree(group->id_list); 1695ad222799SDave Airlie group->id_list = NULL; 1696ad222799SDave Airlie } 1697ad222799SDave Airlie 1698c8e32cc1SDaniel Vetter /* 1699c8e32cc1SDaniel Vetter * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is 1700c8e32cc1SDaniel Vetter * the drm core's responsibility to set up mode control groups. 1701c8e32cc1SDaniel Vetter */ 1702f453ba04SDave Airlie int drm_mode_group_init_legacy_group(struct drm_device *dev, 1703f453ba04SDave Airlie struct drm_mode_group *group) 1704f453ba04SDave Airlie { 1705f453ba04SDave Airlie struct drm_crtc *crtc; 1706f453ba04SDave Airlie struct drm_encoder *encoder; 1707f453ba04SDave Airlie struct drm_connector *connector; 1708f453ba04SDave Airlie int ret; 1709f453ba04SDave Airlie 17100cc0b223SThierry Reding ret = drm_mode_group_init(dev, group); 17110cc0b223SThierry Reding if (ret) 1712f453ba04SDave Airlie return ret; 1713f453ba04SDave Airlie 1714f453ba04SDave Airlie list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 1715f453ba04SDave Airlie group->id_list[group->num_crtcs++] = crtc->base.id; 1716f453ba04SDave Airlie 1717f453ba04SDave Airlie list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 1718f453ba04SDave Airlie group->id_list[group->num_crtcs + group->num_encoders++] = 1719f453ba04SDave Airlie encoder->base.id; 1720f453ba04SDave Airlie 1721f453ba04SDave Airlie list_for_each_entry(connector, &dev->mode_config.connector_list, head) 1722f453ba04SDave Airlie group->id_list[group->num_crtcs + group->num_encoders + 1723f453ba04SDave Airlie group->num_connectors++] = connector->base.id; 1724f453ba04SDave Airlie 1725f453ba04SDave Airlie return 0; 1726f453ba04SDave Airlie } 17279c1dfc55SDave Airlie EXPORT_SYMBOL(drm_mode_group_init_legacy_group); 1728f453ba04SDave Airlie 17292390cd11SDave Airlie void drm_reinit_primary_mode_group(struct drm_device *dev) 17302390cd11SDave Airlie { 17312390cd11SDave Airlie drm_modeset_lock_all(dev); 17322390cd11SDave Airlie drm_mode_group_destroy(&dev->primary->mode_group); 17332390cd11SDave Airlie drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group); 17342390cd11SDave Airlie drm_modeset_unlock_all(dev); 17352390cd11SDave Airlie } 17362390cd11SDave Airlie EXPORT_SYMBOL(drm_reinit_primary_mode_group); 17372390cd11SDave Airlie 1738f453ba04SDave Airlie /** 1739f453ba04SDave Airlie * drm_mode_getresources - get graphics configuration 1740065a50edSDaniel Vetter * @dev: drm device for the ioctl 1741065a50edSDaniel Vetter * @data: data pointer for the ioctl 1742065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1743f453ba04SDave Airlie * 1744f453ba04SDave Airlie * Construct a set of configuration description structures and return 1745f453ba04SDave Airlie * them to the user, including CRTC, connector and framebuffer configuration. 1746f453ba04SDave Airlie * 1747f453ba04SDave Airlie * Called by the user via ioctl. 1748f453ba04SDave Airlie * 1749c8e32cc1SDaniel Vetter * Returns: 17501a498633SDaniel Vetter * Zero on success, negative errno on failure. 1751f453ba04SDave Airlie */ 1752f453ba04SDave Airlie int drm_mode_getresources(struct drm_device *dev, void *data, 1753f453ba04SDave Airlie struct drm_file *file_priv) 1754f453ba04SDave Airlie { 1755f453ba04SDave Airlie struct drm_mode_card_res *card_res = data; 1756f453ba04SDave Airlie struct list_head *lh; 1757f453ba04SDave Airlie struct drm_framebuffer *fb; 1758f453ba04SDave Airlie struct drm_connector *connector; 1759f453ba04SDave Airlie struct drm_crtc *crtc; 1760f453ba04SDave Airlie struct drm_encoder *encoder; 1761f453ba04SDave Airlie int ret = 0; 1762f453ba04SDave Airlie int connector_count = 0; 1763f453ba04SDave Airlie int crtc_count = 0; 1764f453ba04SDave Airlie int fb_count = 0; 1765f453ba04SDave Airlie int encoder_count = 0; 1766f453ba04SDave Airlie int copied = 0, i; 1767f453ba04SDave Airlie uint32_t __user *fb_id; 1768f453ba04SDave Airlie uint32_t __user *crtc_id; 1769f453ba04SDave Airlie uint32_t __user *connector_id; 1770f453ba04SDave Airlie uint32_t __user *encoder_id; 1771f453ba04SDave Airlie struct drm_mode_group *mode_group; 1772f453ba04SDave Airlie 1773fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1774fb3b06c8SDave Airlie return -EINVAL; 1775fb3b06c8SDave Airlie 1776f453ba04SDave Airlie 17774b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 1778f453ba04SDave Airlie /* 1779f453ba04SDave Airlie * For the non-control nodes we need to limit the list of resources 1780f453ba04SDave Airlie * by IDs in the group list for this node 1781f453ba04SDave Airlie */ 1782f453ba04SDave Airlie list_for_each(lh, &file_priv->fbs) 1783f453ba04SDave Airlie fb_count++; 1784f453ba04SDave Airlie 17854b096ac1SDaniel Vetter /* handle this in 4 parts */ 17864b096ac1SDaniel Vetter /* FBs */ 17874b096ac1SDaniel Vetter if (card_res->count_fbs >= fb_count) { 17884b096ac1SDaniel Vetter copied = 0; 17894b096ac1SDaniel Vetter fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; 17904b096ac1SDaniel Vetter list_for_each_entry(fb, &file_priv->fbs, filp_head) { 17914b096ac1SDaniel Vetter if (put_user(fb->base.id, fb_id + copied)) { 17924b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 17934b096ac1SDaniel Vetter return -EFAULT; 17944b096ac1SDaniel Vetter } 17954b096ac1SDaniel Vetter copied++; 17964b096ac1SDaniel Vetter } 17974b096ac1SDaniel Vetter } 17984b096ac1SDaniel Vetter card_res->count_fbs = fb_count; 17994b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 18004b096ac1SDaniel Vetter 1801fcf93f69SDaniel Vetter /* mode_config.mutex protects the connector list against e.g. DP MST 1802fcf93f69SDaniel Vetter * connector hot-adding. CRTC/Plane lists are invariant. */ 1803fcf93f69SDaniel Vetter mutex_lock(&dev->mode_config.mutex); 180443683057SThomas Hellstrom if (!drm_is_primary_client(file_priv)) { 1805f453ba04SDave Airlie 180609f308f7SThomas Hellstrom mode_group = NULL; 1807f453ba04SDave Airlie list_for_each(lh, &dev->mode_config.crtc_list) 1808f453ba04SDave Airlie crtc_count++; 1809f453ba04SDave Airlie 1810f453ba04SDave Airlie list_for_each(lh, &dev->mode_config.connector_list) 1811f453ba04SDave Airlie connector_count++; 1812f453ba04SDave Airlie 1813f453ba04SDave Airlie list_for_each(lh, &dev->mode_config.encoder_list) 1814f453ba04SDave Airlie encoder_count++; 1815f453ba04SDave Airlie } else { 1816f453ba04SDave Airlie 181709f308f7SThomas Hellstrom mode_group = &file_priv->master->minor->mode_group; 1818f453ba04SDave Airlie crtc_count = mode_group->num_crtcs; 1819f453ba04SDave Airlie connector_count = mode_group->num_connectors; 1820f453ba04SDave Airlie encoder_count = mode_group->num_encoders; 1821f453ba04SDave Airlie } 1822f453ba04SDave Airlie 1823f453ba04SDave Airlie card_res->max_height = dev->mode_config.max_height; 1824f453ba04SDave Airlie card_res->min_height = dev->mode_config.min_height; 1825f453ba04SDave Airlie card_res->max_width = dev->mode_config.max_width; 1826f453ba04SDave Airlie card_res->min_width = dev->mode_config.min_width; 1827f453ba04SDave Airlie 1828f453ba04SDave Airlie /* CRTCs */ 1829f453ba04SDave Airlie if (card_res->count_crtcs >= crtc_count) { 1830f453ba04SDave Airlie copied = 0; 1831f453ba04SDave Airlie crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; 183209f308f7SThomas Hellstrom if (!mode_group) { 1833f453ba04SDave Airlie list_for_each_entry(crtc, &dev->mode_config.crtc_list, 1834f453ba04SDave Airlie head) { 18359440106bSJerome Glisse DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1836f453ba04SDave Airlie if (put_user(crtc->base.id, crtc_id + copied)) { 1837f453ba04SDave Airlie ret = -EFAULT; 1838f453ba04SDave Airlie goto out; 1839f453ba04SDave Airlie } 1840f453ba04SDave Airlie copied++; 1841f453ba04SDave Airlie } 1842f453ba04SDave Airlie } else { 1843f453ba04SDave Airlie for (i = 0; i < mode_group->num_crtcs; i++) { 1844f453ba04SDave Airlie if (put_user(mode_group->id_list[i], 1845f453ba04SDave Airlie crtc_id + copied)) { 1846f453ba04SDave Airlie ret = -EFAULT; 1847f453ba04SDave Airlie goto out; 1848f453ba04SDave Airlie } 1849f453ba04SDave Airlie copied++; 1850f453ba04SDave Airlie } 1851f453ba04SDave Airlie } 1852f453ba04SDave Airlie } 1853f453ba04SDave Airlie card_res->count_crtcs = crtc_count; 1854f453ba04SDave Airlie 1855f453ba04SDave Airlie /* Encoders */ 1856f453ba04SDave Airlie if (card_res->count_encoders >= encoder_count) { 1857f453ba04SDave Airlie copied = 0; 1858f453ba04SDave Airlie encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; 185909f308f7SThomas Hellstrom if (!mode_group) { 1860f453ba04SDave Airlie list_for_each_entry(encoder, 1861f453ba04SDave Airlie &dev->mode_config.encoder_list, 1862f453ba04SDave Airlie head) { 18639440106bSJerome Glisse DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, 186483a8cfd3SJani Nikula encoder->name); 1865f453ba04SDave Airlie if (put_user(encoder->base.id, encoder_id + 1866f453ba04SDave Airlie copied)) { 1867f453ba04SDave Airlie ret = -EFAULT; 1868f453ba04SDave Airlie goto out; 1869f453ba04SDave Airlie } 1870f453ba04SDave Airlie copied++; 1871f453ba04SDave Airlie } 1872f453ba04SDave Airlie } else { 1873f453ba04SDave Airlie for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { 1874f453ba04SDave Airlie if (put_user(mode_group->id_list[i], 1875f453ba04SDave Airlie encoder_id + copied)) { 1876f453ba04SDave Airlie ret = -EFAULT; 1877f453ba04SDave Airlie goto out; 1878f453ba04SDave Airlie } 1879f453ba04SDave Airlie copied++; 1880f453ba04SDave Airlie } 1881f453ba04SDave Airlie 1882f453ba04SDave Airlie } 1883f453ba04SDave Airlie } 1884f453ba04SDave Airlie card_res->count_encoders = encoder_count; 1885f453ba04SDave Airlie 1886f453ba04SDave Airlie /* Connectors */ 1887f453ba04SDave Airlie if (card_res->count_connectors >= connector_count) { 1888f453ba04SDave Airlie copied = 0; 1889f453ba04SDave Airlie connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; 189009f308f7SThomas Hellstrom if (!mode_group) { 1891f453ba04SDave Airlie list_for_each_entry(connector, 1892f453ba04SDave Airlie &dev->mode_config.connector_list, 1893f453ba04SDave Airlie head) { 18949440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 18959440106bSJerome Glisse connector->base.id, 189625933820SJani Nikula connector->name); 1897f453ba04SDave Airlie if (put_user(connector->base.id, 1898f453ba04SDave Airlie connector_id + copied)) { 1899f453ba04SDave Airlie ret = -EFAULT; 1900f453ba04SDave Airlie goto out; 1901f453ba04SDave Airlie } 1902f453ba04SDave Airlie copied++; 1903f453ba04SDave Airlie } 1904f453ba04SDave Airlie } else { 1905f453ba04SDave Airlie int start = mode_group->num_crtcs + 1906f453ba04SDave Airlie mode_group->num_encoders; 1907f453ba04SDave Airlie for (i = start; i < start + mode_group->num_connectors; i++) { 1908f453ba04SDave Airlie if (put_user(mode_group->id_list[i], 1909f453ba04SDave Airlie connector_id + copied)) { 1910f453ba04SDave Airlie ret = -EFAULT; 1911f453ba04SDave Airlie goto out; 1912f453ba04SDave Airlie } 1913f453ba04SDave Airlie copied++; 1914f453ba04SDave Airlie } 1915f453ba04SDave Airlie } 1916f453ba04SDave Airlie } 1917f453ba04SDave Airlie card_res->count_connectors = connector_count; 1918f453ba04SDave Airlie 19199440106bSJerome Glisse DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, 1920f453ba04SDave Airlie card_res->count_connectors, card_res->count_encoders); 1921f453ba04SDave Airlie 1922f453ba04SDave Airlie out: 1923fcf93f69SDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 1924f453ba04SDave Airlie return ret; 1925f453ba04SDave Airlie } 1926f453ba04SDave Airlie 1927f453ba04SDave Airlie /** 1928f453ba04SDave Airlie * drm_mode_getcrtc - get CRTC configuration 1929065a50edSDaniel Vetter * @dev: drm device for the ioctl 1930065a50edSDaniel Vetter * @data: data pointer for the ioctl 1931065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1932f453ba04SDave Airlie * 1933f453ba04SDave Airlie * Construct a CRTC configuration structure to return to the user. 1934f453ba04SDave Airlie * 1935f453ba04SDave Airlie * Called by the user via ioctl. 1936f453ba04SDave Airlie * 1937c8e32cc1SDaniel Vetter * Returns: 19381a498633SDaniel Vetter * Zero on success, negative errno on failure. 1939f453ba04SDave Airlie */ 1940f453ba04SDave Airlie int drm_mode_getcrtc(struct drm_device *dev, 1941f453ba04SDave Airlie void *data, struct drm_file *file_priv) 1942f453ba04SDave Airlie { 1943f453ba04SDave Airlie struct drm_mode_crtc *crtc_resp = data; 1944f453ba04SDave Airlie struct drm_crtc *crtc; 1945f453ba04SDave Airlie 1946fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1947fb3b06c8SDave Airlie return -EINVAL; 1948fb3b06c8SDave Airlie 1949a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_resp->crtc_id); 1950fcf93f69SDaniel Vetter if (!crtc) 1951fcf93f69SDaniel Vetter return -ENOENT; 1952f453ba04SDave Airlie 1953fcf93f69SDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 1954f453ba04SDave Airlie crtc_resp->gamma_size = crtc->gamma_size; 1955f4510a27SMatt Roper if (crtc->primary->fb) 1956f4510a27SMatt Roper crtc_resp->fb_id = crtc->primary->fb->base.id; 1957f453ba04SDave Airlie else 1958f453ba04SDave Airlie crtc_resp->fb_id = 0; 1959f453ba04SDave Airlie 196031c946e8SDaniel Vetter if (crtc->state) { 196131c946e8SDaniel Vetter crtc_resp->x = crtc->primary->state->src_x >> 16; 196231c946e8SDaniel Vetter crtc_resp->y = crtc->primary->state->src_y >> 16; 196331c946e8SDaniel Vetter if (crtc->state->enable) { 1964934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); 196531c946e8SDaniel Vetter crtc_resp->mode_valid = 1; 1966f453ba04SDave Airlie 196731c946e8SDaniel Vetter } else { 196831c946e8SDaniel Vetter crtc_resp->mode_valid = 0; 196931c946e8SDaniel Vetter } 197031c946e8SDaniel Vetter } else { 197131c946e8SDaniel Vetter crtc_resp->x = crtc->x; 197231c946e8SDaniel Vetter crtc_resp->y = crtc->y; 197331c946e8SDaniel Vetter if (crtc->enabled) { 1974934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); 1975f453ba04SDave Airlie crtc_resp->mode_valid = 1; 1976f453ba04SDave Airlie 1977f453ba04SDave Airlie } else { 1978f453ba04SDave Airlie crtc_resp->mode_valid = 0; 1979f453ba04SDave Airlie } 198031c946e8SDaniel Vetter } 1981fcf93f69SDaniel Vetter drm_modeset_unlock_crtc(crtc); 1982f453ba04SDave Airlie 1983baf698b0SDaniel Vetter return 0; 1984f453ba04SDave Airlie } 1985f453ba04SDave Airlie 198661d8e328SDamien Lespiau static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, 198761d8e328SDamien Lespiau const struct drm_file *file_priv) 198861d8e328SDamien Lespiau { 198961d8e328SDamien Lespiau /* 199061d8e328SDamien Lespiau * If user-space hasn't configured the driver to expose the stereo 3D 199161d8e328SDamien Lespiau * modes, don't expose them. 199261d8e328SDamien Lespiau */ 199361d8e328SDamien Lespiau if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) 199461d8e328SDamien Lespiau return false; 199561d8e328SDamien Lespiau 199661d8e328SDamien Lespiau return true; 199761d8e328SDamien Lespiau } 199861d8e328SDamien Lespiau 1999abd69c55SDaniel Vetter static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) 2000abd69c55SDaniel Vetter { 2001abd69c55SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 2002abd69c55SDaniel Vetter * protected by modeset locks, so check those first. */ 2003abd69c55SDaniel Vetter if (connector->state) 2004abd69c55SDaniel Vetter return connector->state->best_encoder; 2005abd69c55SDaniel Vetter return connector->encoder; 2006abd69c55SDaniel Vetter } 2007abd69c55SDaniel Vetter 200895cbf110SRob Clark /* helper for getconnector and getproperties ioctls */ 200988a48e29SRob Clark static int get_properties(struct drm_mode_object *obj, bool atomic, 201095cbf110SRob Clark uint32_t __user *prop_ptr, uint64_t __user *prop_values, 201195cbf110SRob Clark uint32_t *arg_count_props) 201295cbf110SRob Clark { 201388a48e29SRob Clark int props_count; 201488a48e29SRob Clark int i, ret, copied; 201588a48e29SRob Clark 201688a48e29SRob Clark props_count = obj->properties->count; 201788a48e29SRob Clark if (!atomic) 201888a48e29SRob Clark props_count -= obj->properties->atomic_count; 201995cbf110SRob Clark 202095cbf110SRob Clark if ((*arg_count_props >= props_count) && props_count) { 202188a48e29SRob Clark for (i = 0, copied = 0; copied < props_count; i++) { 202295cbf110SRob Clark struct drm_property *prop = obj->properties->properties[i]; 202395cbf110SRob Clark uint64_t val; 202495cbf110SRob Clark 202588a48e29SRob Clark if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) 202688a48e29SRob Clark continue; 202788a48e29SRob Clark 202895cbf110SRob Clark ret = drm_object_property_get_value(obj, prop, &val); 202995cbf110SRob Clark if (ret) 203095cbf110SRob Clark return ret; 203195cbf110SRob Clark 203295cbf110SRob Clark if (put_user(prop->base.id, prop_ptr + copied)) 203395cbf110SRob Clark return -EFAULT; 203495cbf110SRob Clark 203595cbf110SRob Clark if (put_user(val, prop_values + copied)) 203695cbf110SRob Clark return -EFAULT; 203795cbf110SRob Clark 203895cbf110SRob Clark copied++; 203995cbf110SRob Clark } 204095cbf110SRob Clark } 204195cbf110SRob Clark *arg_count_props = props_count; 204295cbf110SRob Clark 204395cbf110SRob Clark return 0; 204495cbf110SRob Clark } 204595cbf110SRob Clark 2046f453ba04SDave Airlie /** 2047f453ba04SDave Airlie * drm_mode_getconnector - get connector configuration 2048065a50edSDaniel Vetter * @dev: drm device for the ioctl 2049065a50edSDaniel Vetter * @data: data pointer for the ioctl 2050065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2051f453ba04SDave Airlie * 2052f453ba04SDave Airlie * Construct a connector configuration structure to return to the user. 2053f453ba04SDave Airlie * 2054f453ba04SDave Airlie * Called by the user via ioctl. 2055f453ba04SDave Airlie * 2056c8e32cc1SDaniel Vetter * Returns: 20571a498633SDaniel Vetter * Zero on success, negative errno on failure. 2058f453ba04SDave Airlie */ 2059f453ba04SDave Airlie int drm_mode_getconnector(struct drm_device *dev, void *data, 2060f453ba04SDave Airlie struct drm_file *file_priv) 2061f453ba04SDave Airlie { 2062f453ba04SDave Airlie struct drm_mode_get_connector *out_resp = data; 2063f453ba04SDave Airlie struct drm_connector *connector; 2064abd69c55SDaniel Vetter struct drm_encoder *encoder; 2065f453ba04SDave Airlie struct drm_display_mode *mode; 2066f453ba04SDave Airlie int mode_count = 0; 2067f453ba04SDave Airlie int encoders_count = 0; 2068f453ba04SDave Airlie int ret = 0; 2069f453ba04SDave Airlie int copied = 0; 2070f453ba04SDave Airlie int i; 2071f453ba04SDave Airlie struct drm_mode_modeinfo u_mode; 2072f453ba04SDave Airlie struct drm_mode_modeinfo __user *mode_ptr; 2073f453ba04SDave Airlie uint32_t __user *encoder_ptr; 2074f453ba04SDave Airlie 2075fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2076fb3b06c8SDave Airlie return -EINVAL; 2077fb3b06c8SDave Airlie 2078f453ba04SDave Airlie memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); 2079f453ba04SDave Airlie 20809440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); 2081f453ba04SDave Airlie 20827b24056bSDaniel Vetter mutex_lock(&dev->mode_config.mutex); 2083f453ba04SDave Airlie 2084a2b34e22SRob Clark connector = drm_connector_find(dev, out_resp->connector_id); 2085a2b34e22SRob Clark if (!connector) { 2086f27657f2SVille Syrjälä ret = -ENOENT; 208704bdf441STommi Rantala goto out_unlock; 2088f453ba04SDave Airlie } 2089f453ba04SDave Airlie 209001073b08SThierry Reding for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) 209101073b08SThierry Reding if (connector->encoder_ids[i] != 0) 2092f453ba04SDave Airlie encoders_count++; 2093f453ba04SDave Airlie 2094f453ba04SDave Airlie if (out_resp->count_modes == 0) { 2095f453ba04SDave Airlie connector->funcs->fill_modes(connector, 2096f453ba04SDave Airlie dev->mode_config.max_width, 2097f453ba04SDave Airlie dev->mode_config.max_height); 2098f453ba04SDave Airlie } 2099f453ba04SDave Airlie 2100f453ba04SDave Airlie /* delayed so we get modes regardless of pre-fill_modes state */ 2101f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) 210261d8e328SDamien Lespiau if (drm_mode_expose_to_userspace(mode, file_priv)) 2103f453ba04SDave Airlie mode_count++; 2104f453ba04SDave Airlie 2105f453ba04SDave Airlie out_resp->connector_id = connector->base.id; 2106f453ba04SDave Airlie out_resp->connector_type = connector->connector_type; 2107f453ba04SDave Airlie out_resp->connector_type_id = connector->connector_type_id; 2108f453ba04SDave Airlie out_resp->mm_width = connector->display_info.width_mm; 2109f453ba04SDave Airlie out_resp->mm_height = connector->display_info.height_mm; 2110f453ba04SDave Airlie out_resp->subpixel = connector->display_info.subpixel_order; 2111f453ba04SDave Airlie out_resp->connection = connector->status; 21122caa80e7SDaniel Vetter 21132caa80e7SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2114abd69c55SDaniel Vetter encoder = drm_connector_get_encoder(connector); 2115abd69c55SDaniel Vetter if (encoder) 2116abd69c55SDaniel Vetter out_resp->encoder_id = encoder->base.id; 2117f453ba04SDave Airlie else 2118f453ba04SDave Airlie out_resp->encoder_id = 0; 2119f453ba04SDave Airlie 2120f453ba04SDave Airlie /* 2121f453ba04SDave Airlie * This ioctl is called twice, once to determine how much space is 2122f453ba04SDave Airlie * needed, and the 2nd time to fill it. 2123f453ba04SDave Airlie */ 2124f453ba04SDave Airlie if ((out_resp->count_modes >= mode_count) && mode_count) { 2125f453ba04SDave Airlie copied = 0; 212681f6c7f8SVille Syrjälä mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 2127f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) { 212861d8e328SDamien Lespiau if (!drm_mode_expose_to_userspace(mode, file_priv)) 212961d8e328SDamien Lespiau continue; 213061d8e328SDamien Lespiau 2131934a8a89SDaniel Stone drm_mode_convert_to_umode(&u_mode, mode); 2132f453ba04SDave Airlie if (copy_to_user(mode_ptr + copied, 2133f453ba04SDave Airlie &u_mode, sizeof(u_mode))) { 2134f453ba04SDave Airlie ret = -EFAULT; 2135f453ba04SDave Airlie goto out; 2136f453ba04SDave Airlie } 2137f453ba04SDave Airlie copied++; 2138f453ba04SDave Airlie } 2139f453ba04SDave Airlie } 2140f453ba04SDave Airlie out_resp->count_modes = mode_count; 2141f453ba04SDave Airlie 214288a48e29SRob Clark ret = get_properties(&connector->base, file_priv->atomic, 214395cbf110SRob Clark (uint32_t __user *)(unsigned long)(out_resp->props_ptr), 214495cbf110SRob Clark (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), 214595cbf110SRob Clark &out_resp->count_props); 214622b8b13bSRob Clark if (ret) 2147f453ba04SDave Airlie goto out; 2148f453ba04SDave Airlie 2149f453ba04SDave Airlie if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 2150f453ba04SDave Airlie copied = 0; 215181f6c7f8SVille Syrjälä encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 2152f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 2153f453ba04SDave Airlie if (connector->encoder_ids[i] != 0) { 2154f453ba04SDave Airlie if (put_user(connector->encoder_ids[i], 2155f453ba04SDave Airlie encoder_ptr + copied)) { 2156f453ba04SDave Airlie ret = -EFAULT; 2157f453ba04SDave Airlie goto out; 2158f453ba04SDave Airlie } 2159f453ba04SDave Airlie copied++; 2160f453ba04SDave Airlie } 2161f453ba04SDave Airlie } 2162f453ba04SDave Airlie } 2163f453ba04SDave Airlie out_resp->count_encoders = encoders_count; 2164f453ba04SDave Airlie 2165f453ba04SDave Airlie out: 2166ccfc0865SRob Clark drm_modeset_unlock(&dev->mode_config.connection_mutex); 216704bdf441STommi Rantala 216804bdf441STommi Rantala out_unlock: 21697b24056bSDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 21707b24056bSDaniel Vetter 2171f453ba04SDave Airlie return ret; 2172f453ba04SDave Airlie } 2173f453ba04SDave Airlie 2174abd69c55SDaniel Vetter static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) 2175abd69c55SDaniel Vetter { 2176abd69c55SDaniel Vetter struct drm_connector *connector; 2177abd69c55SDaniel Vetter struct drm_device *dev = encoder->dev; 2178abd69c55SDaniel Vetter bool uses_atomic = false; 2179abd69c55SDaniel Vetter 2180abd69c55SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 2181abd69c55SDaniel Vetter * protected by modeset locks, so check those first. */ 2182abd69c55SDaniel Vetter list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2183abd69c55SDaniel Vetter if (!connector->state) 2184abd69c55SDaniel Vetter continue; 2185abd69c55SDaniel Vetter 2186abd69c55SDaniel Vetter uses_atomic = true; 2187abd69c55SDaniel Vetter 2188abd69c55SDaniel Vetter if (connector->state->best_encoder != encoder) 2189abd69c55SDaniel Vetter continue; 2190abd69c55SDaniel Vetter 2191abd69c55SDaniel Vetter return connector->state->crtc; 2192abd69c55SDaniel Vetter } 2193abd69c55SDaniel Vetter 2194abd69c55SDaniel Vetter /* Don't return stale data (e.g. pending async disable). */ 2195abd69c55SDaniel Vetter if (uses_atomic) 2196abd69c55SDaniel Vetter return NULL; 2197abd69c55SDaniel Vetter 2198abd69c55SDaniel Vetter return encoder->crtc; 2199abd69c55SDaniel Vetter } 2200abd69c55SDaniel Vetter 2201c8e32cc1SDaniel Vetter /** 2202c8e32cc1SDaniel Vetter * drm_mode_getencoder - get encoder configuration 2203c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2204c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2205c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2206c8e32cc1SDaniel Vetter * 2207c8e32cc1SDaniel Vetter * Construct a encoder configuration structure to return to the user. 2208c8e32cc1SDaniel Vetter * 2209c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2210c8e32cc1SDaniel Vetter * 2211c8e32cc1SDaniel Vetter * Returns: 22121a498633SDaniel Vetter * Zero on success, negative errno on failure. 2213c8e32cc1SDaniel Vetter */ 2214f453ba04SDave Airlie int drm_mode_getencoder(struct drm_device *dev, void *data, 2215f453ba04SDave Airlie struct drm_file *file_priv) 2216f453ba04SDave Airlie { 2217f453ba04SDave Airlie struct drm_mode_get_encoder *enc_resp = data; 2218f453ba04SDave Airlie struct drm_encoder *encoder; 2219abd69c55SDaniel Vetter struct drm_crtc *crtc; 2220f453ba04SDave Airlie 2221fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2222fb3b06c8SDave Airlie return -EINVAL; 2223fb3b06c8SDave Airlie 2224a2b34e22SRob Clark encoder = drm_encoder_find(dev, enc_resp->encoder_id); 2225fcf93f69SDaniel Vetter if (!encoder) 2226fcf93f69SDaniel Vetter return -ENOENT; 2227f453ba04SDave Airlie 2228fcf93f69SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2229abd69c55SDaniel Vetter crtc = drm_encoder_get_crtc(encoder); 2230abd69c55SDaniel Vetter if (crtc) 2231abd69c55SDaniel Vetter enc_resp->crtc_id = crtc->base.id; 2232f453ba04SDave Airlie else 2233f453ba04SDave Airlie enc_resp->crtc_id = 0; 2234fcf93f69SDaniel Vetter drm_modeset_unlock(&dev->mode_config.connection_mutex); 2235fcf93f69SDaniel Vetter 2236f453ba04SDave Airlie enc_resp->encoder_type = encoder->encoder_type; 2237f453ba04SDave Airlie enc_resp->encoder_id = encoder->base.id; 2238f453ba04SDave Airlie enc_resp->possible_crtcs = encoder->possible_crtcs; 2239f453ba04SDave Airlie enc_resp->possible_clones = encoder->possible_clones; 2240f453ba04SDave Airlie 2241baf698b0SDaniel Vetter return 0; 2242f453ba04SDave Airlie } 2243f453ba04SDave Airlie 2244f453ba04SDave Airlie /** 2245c8e32cc1SDaniel Vetter * drm_mode_getplane_res - enumerate all plane resources 22468cf5c917SJesse Barnes * @dev: DRM device 22478cf5c917SJesse Barnes * @data: ioctl data 22488cf5c917SJesse Barnes * @file_priv: DRM file info 22498cf5c917SJesse Barnes * 2250c8e32cc1SDaniel Vetter * Construct a list of plane ids to return to the user. 2251c8e32cc1SDaniel Vetter * 2252c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2253c8e32cc1SDaniel Vetter * 2254c8e32cc1SDaniel Vetter * Returns: 22551a498633SDaniel Vetter * Zero on success, negative errno on failure. 22568cf5c917SJesse Barnes */ 22578cf5c917SJesse Barnes int drm_mode_getplane_res(struct drm_device *dev, void *data, 22588cf5c917SJesse Barnes struct drm_file *file_priv) 22598cf5c917SJesse Barnes { 22608cf5c917SJesse Barnes struct drm_mode_get_plane_res *plane_resp = data; 22618cf5c917SJesse Barnes struct drm_mode_config *config; 22628cf5c917SJesse Barnes struct drm_plane *plane; 22638cf5c917SJesse Barnes uint32_t __user *plane_ptr; 2264fcf93f69SDaniel Vetter int copied = 0; 2265681e7ec7SMatt Roper unsigned num_planes; 22668cf5c917SJesse Barnes 22678cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 22688cf5c917SJesse Barnes return -EINVAL; 22698cf5c917SJesse Barnes 22708cf5c917SJesse Barnes config = &dev->mode_config; 22718cf5c917SJesse Barnes 2272681e7ec7SMatt Roper if (file_priv->universal_planes) 2273681e7ec7SMatt Roper num_planes = config->num_total_plane; 2274681e7ec7SMatt Roper else 2275681e7ec7SMatt Roper num_planes = config->num_overlay_plane; 2276681e7ec7SMatt Roper 22778cf5c917SJesse Barnes /* 22788cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 22798cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 22808cf5c917SJesse Barnes */ 2281681e7ec7SMatt Roper if (num_planes && 2282681e7ec7SMatt Roper (plane_resp->count_planes >= num_planes)) { 228381f6c7f8SVille Syrjälä plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; 22848cf5c917SJesse Barnes 2285fcf93f69SDaniel Vetter /* Plane lists are invariant, no locking needed. */ 22868cf5c917SJesse Barnes list_for_each_entry(plane, &config->plane_list, head) { 2287681e7ec7SMatt Roper /* 2288681e7ec7SMatt Roper * Unless userspace set the 'universal planes' 2289681e7ec7SMatt Roper * capability bit, only advertise overlays. 2290681e7ec7SMatt Roper */ 2291681e7ec7SMatt Roper if (plane->type != DRM_PLANE_TYPE_OVERLAY && 2292681e7ec7SMatt Roper !file_priv->universal_planes) 2293e27dde3eSMatt Roper continue; 2294e27dde3eSMatt Roper 2295fcf93f69SDaniel Vetter if (put_user(plane->base.id, plane_ptr + copied)) 2296fcf93f69SDaniel Vetter return -EFAULT; 22978cf5c917SJesse Barnes copied++; 22988cf5c917SJesse Barnes } 22998cf5c917SJesse Barnes } 2300681e7ec7SMatt Roper plane_resp->count_planes = num_planes; 23018cf5c917SJesse Barnes 2302fcf93f69SDaniel Vetter return 0; 23038cf5c917SJesse Barnes } 23048cf5c917SJesse Barnes 23058cf5c917SJesse Barnes /** 2306c8e32cc1SDaniel Vetter * drm_mode_getplane - get plane configuration 23078cf5c917SJesse Barnes * @dev: DRM device 23088cf5c917SJesse Barnes * @data: ioctl data 23098cf5c917SJesse Barnes * @file_priv: DRM file info 23108cf5c917SJesse Barnes * 2311c8e32cc1SDaniel Vetter * Construct a plane configuration structure to return to the user. 2312c8e32cc1SDaniel Vetter * 2313c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2314c8e32cc1SDaniel Vetter * 2315c8e32cc1SDaniel Vetter * Returns: 23161a498633SDaniel Vetter * Zero on success, negative errno on failure. 23178cf5c917SJesse Barnes */ 23188cf5c917SJesse Barnes int drm_mode_getplane(struct drm_device *dev, void *data, 23198cf5c917SJesse Barnes struct drm_file *file_priv) 23208cf5c917SJesse Barnes { 23218cf5c917SJesse Barnes struct drm_mode_get_plane *plane_resp = data; 23228cf5c917SJesse Barnes struct drm_plane *plane; 23238cf5c917SJesse Barnes uint32_t __user *format_ptr; 23248cf5c917SJesse Barnes 23258cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 23268cf5c917SJesse Barnes return -EINVAL; 23278cf5c917SJesse Barnes 2328a2b34e22SRob Clark plane = drm_plane_find(dev, plane_resp->plane_id); 2329fcf93f69SDaniel Vetter if (!plane) 2330fcf93f69SDaniel Vetter return -ENOENT; 23318cf5c917SJesse Barnes 2332fcf93f69SDaniel Vetter drm_modeset_lock(&plane->mutex, NULL); 23338cf5c917SJesse Barnes if (plane->crtc) 23348cf5c917SJesse Barnes plane_resp->crtc_id = plane->crtc->base.id; 23358cf5c917SJesse Barnes else 23368cf5c917SJesse Barnes plane_resp->crtc_id = 0; 23378cf5c917SJesse Barnes 23388cf5c917SJesse Barnes if (plane->fb) 23398cf5c917SJesse Barnes plane_resp->fb_id = plane->fb->base.id; 23408cf5c917SJesse Barnes else 23418cf5c917SJesse Barnes plane_resp->fb_id = 0; 2342fcf93f69SDaniel Vetter drm_modeset_unlock(&plane->mutex); 23438cf5c917SJesse Barnes 23448cf5c917SJesse Barnes plane_resp->plane_id = plane->base.id; 23458cf5c917SJesse Barnes plane_resp->possible_crtcs = plane->possible_crtcs; 2346778ad903SVille Syrjälä plane_resp->gamma_size = 0; 23478cf5c917SJesse Barnes 23488cf5c917SJesse Barnes /* 23498cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 23508cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 23518cf5c917SJesse Barnes */ 23528cf5c917SJesse Barnes if (plane->format_count && 23538cf5c917SJesse Barnes (plane_resp->count_format_types >= plane->format_count)) { 235481f6c7f8SVille Syrjälä format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; 23558cf5c917SJesse Barnes if (copy_to_user(format_ptr, 23568cf5c917SJesse Barnes plane->format_types, 23578cf5c917SJesse Barnes sizeof(uint32_t) * plane->format_count)) { 2358fcf93f69SDaniel Vetter return -EFAULT; 23598cf5c917SJesse Barnes } 23608cf5c917SJesse Barnes } 23618cf5c917SJesse Barnes plane_resp->count_format_types = plane->format_count; 23628cf5c917SJesse Barnes 2363baf698b0SDaniel Vetter return 0; 23648cf5c917SJesse Barnes } 23658cf5c917SJesse Barnes 2366ead8610dSLaurent Pinchart /** 2367ead8610dSLaurent Pinchart * drm_plane_check_pixel_format - Check if the plane supports the pixel format 2368ead8610dSLaurent Pinchart * @plane: plane to check for format support 2369ead8610dSLaurent Pinchart * @format: the pixel format 2370ead8610dSLaurent Pinchart * 2371ead8610dSLaurent Pinchart * Returns: 2372ead8610dSLaurent Pinchart * Zero of @plane has @format in its list of supported pixel formats, -EINVAL 2373ead8610dSLaurent Pinchart * otherwise. 2374ead8610dSLaurent Pinchart */ 2375ead8610dSLaurent Pinchart int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) 2376ead8610dSLaurent Pinchart { 2377ead8610dSLaurent Pinchart unsigned int i; 2378ead8610dSLaurent Pinchart 2379ead8610dSLaurent Pinchart for (i = 0; i < plane->format_count; i++) { 2380ead8610dSLaurent Pinchart if (format == plane->format_types[i]) 2381ead8610dSLaurent Pinchart return 0; 2382ead8610dSLaurent Pinchart } 2383ead8610dSLaurent Pinchart 2384ead8610dSLaurent Pinchart return -EINVAL; 2385ead8610dSLaurent Pinchart } 2386ead8610dSLaurent Pinchart 2387b36552b3SMatt Roper /* 2388b36552b3SMatt Roper * setplane_internal - setplane handler for internal callers 23898cf5c917SJesse Barnes * 2390b36552b3SMatt Roper * Note that we assume an extra reference has already been taken on fb. If the 2391b36552b3SMatt Roper * update fails, this reference will be dropped before return; if it succeeds, 2392b36552b3SMatt Roper * the previous framebuffer (if any) will be unreferenced instead. 2393c8e32cc1SDaniel Vetter * 2394b36552b3SMatt Roper * src_{x,y,w,h} are provided in 16.16 fixed point format 23958cf5c917SJesse Barnes */ 2396f2b50c11SDaniel Vetter static int __setplane_internal(struct drm_plane *plane, 239717cfd91fSChris Wilson struct drm_crtc *crtc, 2398b36552b3SMatt Roper struct drm_framebuffer *fb, 2399b36552b3SMatt Roper int32_t crtc_x, int32_t crtc_y, 2400b36552b3SMatt Roper uint32_t crtc_w, uint32_t crtc_h, 2401b36552b3SMatt Roper /* src_{x,y,w,h} values are 16.16 fixed point */ 2402b36552b3SMatt Roper uint32_t src_x, uint32_t src_y, 2403b36552b3SMatt Roper uint32_t src_w, uint32_t src_h) 24048cf5c917SJesse Barnes { 24058cf5c917SJesse Barnes int ret = 0; 240642ef8789SVille Syrjälä unsigned int fb_width, fb_height; 24078cf5c917SJesse Barnes 24088cf5c917SJesse Barnes /* No fb means shut it down */ 2409b36552b3SMatt Roper if (!fb) { 24103d30a59bSDaniel Vetter plane->old_fb = plane->fb; 2411731cce48SDaniel Vetter ret = plane->funcs->disable_plane(plane); 2412731cce48SDaniel Vetter if (!ret) { 2413e5e3b44cSVille Syrjälä plane->crtc = NULL; 2414e5e3b44cSVille Syrjälä plane->fb = NULL; 2415731cce48SDaniel Vetter } else { 24163d30a59bSDaniel Vetter plane->old_fb = NULL; 2417731cce48SDaniel Vetter } 24188cf5c917SJesse Barnes goto out; 24198cf5c917SJesse Barnes } 24208cf5c917SJesse Barnes 24217f994f3fSMatt Roper /* Check whether this plane is usable on this CRTC */ 24227f994f3fSMatt Roper if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { 24237f994f3fSMatt Roper DRM_DEBUG_KMS("Invalid crtc for plane\n"); 24247f994f3fSMatt Roper ret = -EINVAL; 24257f994f3fSMatt Roper goto out; 24267f994f3fSMatt Roper } 24277f994f3fSMatt Roper 242862443be6SVille Syrjälä /* Check whether this plane supports the fb pixel format. */ 2429ead8610dSLaurent Pinchart ret = drm_plane_check_pixel_format(plane, fb->pixel_format); 2430ead8610dSLaurent Pinchart if (ret) { 24316ba6d03eSVille Syrjälä DRM_DEBUG_KMS("Invalid pixel format %s\n", 24326ba6d03eSVille Syrjälä drm_get_format_name(fb->pixel_format)); 243362443be6SVille Syrjälä goto out; 243462443be6SVille Syrjälä } 243562443be6SVille Syrjälä 24363968be94SMatt Roper /* Give drivers some help against integer overflows */ 24373968be94SMatt Roper if (crtc_w > INT_MAX || 24383968be94SMatt Roper crtc_x > INT_MAX - (int32_t) crtc_w || 24393968be94SMatt Roper crtc_h > INT_MAX || 24403968be94SMatt Roper crtc_y > INT_MAX - (int32_t) crtc_h) { 24413968be94SMatt Roper DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", 24423968be94SMatt Roper crtc_w, crtc_h, crtc_x, crtc_y); 24433968be94SMatt Roper return -ERANGE; 24443968be94SMatt Roper } 24453968be94SMatt Roper 24463968be94SMatt Roper 244742ef8789SVille Syrjälä fb_width = fb->width << 16; 244842ef8789SVille Syrjälä fb_height = fb->height << 16; 244942ef8789SVille Syrjälä 245042ef8789SVille Syrjälä /* Make sure source coordinates are inside the fb. */ 2451b36552b3SMatt Roper if (src_w > fb_width || 2452b36552b3SMatt Roper src_x > fb_width - src_w || 2453b36552b3SMatt Roper src_h > fb_height || 2454b36552b3SMatt Roper src_y > fb_height - src_h) { 245542ef8789SVille Syrjälä DRM_DEBUG_KMS("Invalid source coordinates " 245642ef8789SVille Syrjälä "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", 2457b36552b3SMatt Roper src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, 2458b36552b3SMatt Roper src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, 2459b36552b3SMatt Roper src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, 2460b36552b3SMatt Roper src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); 246142ef8789SVille Syrjälä ret = -ENOSPC; 246242ef8789SVille Syrjälä goto out; 246342ef8789SVille Syrjälä } 246442ef8789SVille Syrjälä 24653d30a59bSDaniel Vetter plane->old_fb = plane->fb; 24668cf5c917SJesse Barnes ret = plane->funcs->update_plane(plane, crtc, fb, 2467b36552b3SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 2468b36552b3SMatt Roper src_x, src_y, src_w, src_h); 24698cf5c917SJesse Barnes if (!ret) { 24708cf5c917SJesse Barnes plane->crtc = crtc; 24718cf5c917SJesse Barnes plane->fb = fb; 247235f8badcSDaniel Vetter fb = NULL; 24730fe27f06SDaniel Vetter } else { 24743d30a59bSDaniel Vetter plane->old_fb = NULL; 24758cf5c917SJesse Barnes } 24768cf5c917SJesse Barnes 24778cf5c917SJesse Barnes out: 24786c2a7532SDaniel Vetter if (fb) 24796c2a7532SDaniel Vetter drm_framebuffer_unreference(fb); 24803d30a59bSDaniel Vetter if (plane->old_fb) 24813d30a59bSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 24823d30a59bSDaniel Vetter plane->old_fb = NULL; 24838cf5c917SJesse Barnes 24848cf5c917SJesse Barnes return ret; 2485f2b50c11SDaniel Vetter } 2486b36552b3SMatt Roper 2487f2b50c11SDaniel Vetter static int setplane_internal(struct drm_plane *plane, 2488f2b50c11SDaniel Vetter struct drm_crtc *crtc, 2489f2b50c11SDaniel Vetter struct drm_framebuffer *fb, 2490f2b50c11SDaniel Vetter int32_t crtc_x, int32_t crtc_y, 2491f2b50c11SDaniel Vetter uint32_t crtc_w, uint32_t crtc_h, 2492f2b50c11SDaniel Vetter /* src_{x,y,w,h} values are 16.16 fixed point */ 2493f2b50c11SDaniel Vetter uint32_t src_x, uint32_t src_y, 2494f2b50c11SDaniel Vetter uint32_t src_w, uint32_t src_h) 2495f2b50c11SDaniel Vetter { 2496f2b50c11SDaniel Vetter int ret; 2497f2b50c11SDaniel Vetter 2498f2b50c11SDaniel Vetter drm_modeset_lock_all(plane->dev); 2499f2b50c11SDaniel Vetter ret = __setplane_internal(plane, crtc, fb, 2500f2b50c11SDaniel Vetter crtc_x, crtc_y, crtc_w, crtc_h, 2501f2b50c11SDaniel Vetter src_x, src_y, src_w, src_h); 2502f2b50c11SDaniel Vetter drm_modeset_unlock_all(plane->dev); 2503f2b50c11SDaniel Vetter 2504f2b50c11SDaniel Vetter return ret; 2505b36552b3SMatt Roper } 2506b36552b3SMatt Roper 2507b36552b3SMatt Roper /** 2508b36552b3SMatt Roper * drm_mode_setplane - configure a plane's configuration 2509b36552b3SMatt Roper * @dev: DRM device 2510b36552b3SMatt Roper * @data: ioctl data* 2511b36552b3SMatt Roper * @file_priv: DRM file info 2512b36552b3SMatt Roper * 2513b36552b3SMatt Roper * Set plane configuration, including placement, fb, scaling, and other factors. 2514b36552b3SMatt Roper * Or pass a NULL fb to disable (planes may be disabled without providing a 2515b36552b3SMatt Roper * valid crtc). 2516b36552b3SMatt Roper * 2517b36552b3SMatt Roper * Returns: 25181a498633SDaniel Vetter * Zero on success, negative errno on failure. 2519b36552b3SMatt Roper */ 2520b36552b3SMatt Roper int drm_mode_setplane(struct drm_device *dev, void *data, 2521b36552b3SMatt Roper struct drm_file *file_priv) 2522b36552b3SMatt Roper { 2523b36552b3SMatt Roper struct drm_mode_set_plane *plane_req = data; 2524b36552b3SMatt Roper struct drm_plane *plane; 2525b36552b3SMatt Roper struct drm_crtc *crtc = NULL; 2526b36552b3SMatt Roper struct drm_framebuffer *fb = NULL; 2527b36552b3SMatt Roper 2528b36552b3SMatt Roper if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2529b36552b3SMatt Roper return -EINVAL; 2530b36552b3SMatt Roper 2531b36552b3SMatt Roper /* 2532b36552b3SMatt Roper * First, find the plane, crtc, and fb objects. If not available, 2533b36552b3SMatt Roper * we don't bother to call the driver. 2534b36552b3SMatt Roper */ 2535933f622fSRob Clark plane = drm_plane_find(dev, plane_req->plane_id); 2536933f622fSRob Clark if (!plane) { 2537b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown plane ID %d\n", 2538b36552b3SMatt Roper plane_req->plane_id); 2539b36552b3SMatt Roper return -ENOENT; 2540b36552b3SMatt Roper } 2541b36552b3SMatt Roper 2542b36552b3SMatt Roper if (plane_req->fb_id) { 2543b36552b3SMatt Roper fb = drm_framebuffer_lookup(dev, plane_req->fb_id); 2544b36552b3SMatt Roper if (!fb) { 2545b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", 2546b36552b3SMatt Roper plane_req->fb_id); 2547b36552b3SMatt Roper return -ENOENT; 2548b36552b3SMatt Roper } 2549b36552b3SMatt Roper 2550933f622fSRob Clark crtc = drm_crtc_find(dev, plane_req->crtc_id); 2551933f622fSRob Clark if (!crtc) { 2552b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown crtc ID %d\n", 2553b36552b3SMatt Roper plane_req->crtc_id); 2554b36552b3SMatt Roper return -ENOENT; 2555b36552b3SMatt Roper } 2556b36552b3SMatt Roper } 2557b36552b3SMatt Roper 2558161d0dc1SMatt Roper /* 2559161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 2560161d0dc1SMatt Roper * framebuffer depending on success. 2561161d0dc1SMatt Roper */ 256217cfd91fSChris Wilson return setplane_internal(plane, crtc, fb, 2563b36552b3SMatt Roper plane_req->crtc_x, plane_req->crtc_y, 2564b36552b3SMatt Roper plane_req->crtc_w, plane_req->crtc_h, 2565b36552b3SMatt Roper plane_req->src_x, plane_req->src_y, 2566b36552b3SMatt Roper plane_req->src_w, plane_req->src_h); 25678cf5c917SJesse Barnes } 25688cf5c917SJesse Barnes 25698cf5c917SJesse Barnes /** 25702d13b679SDaniel Vetter * drm_mode_set_config_internal - helper to call ->set_config 25712d13b679SDaniel Vetter * @set: modeset config to set 25722d13b679SDaniel Vetter * 25732d13b679SDaniel Vetter * This is a little helper to wrap internal calls to the ->set_config driver 25742d13b679SDaniel Vetter * interface. The only thing it adds is correct refcounting dance. 2575c8e32cc1SDaniel Vetter * 2576c8e32cc1SDaniel Vetter * Returns: 25771a498633SDaniel Vetter * Zero on success, negative errno on failure. 25782d13b679SDaniel Vetter */ 25792d13b679SDaniel Vetter int drm_mode_set_config_internal(struct drm_mode_set *set) 25802d13b679SDaniel Vetter { 25812d13b679SDaniel Vetter struct drm_crtc *crtc = set->crtc; 25825cef29aaSDaniel Vetter struct drm_framebuffer *fb; 25835cef29aaSDaniel Vetter struct drm_crtc *tmp; 2584b0d12325SDaniel Vetter int ret; 25852d13b679SDaniel Vetter 25865cef29aaSDaniel Vetter /* 25875cef29aaSDaniel Vetter * NOTE: ->set_config can also disable other crtcs (if we steal all 25885cef29aaSDaniel Vetter * connectors from it), hence we need to refcount the fbs across all 25895cef29aaSDaniel Vetter * crtcs. Atomic modeset will have saner semantics ... 25905cef29aaSDaniel Vetter */ 25915cef29aaSDaniel Vetter list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) 25923d30a59bSDaniel Vetter tmp->primary->old_fb = tmp->primary->fb; 25935cef29aaSDaniel Vetter 2594b0d12325SDaniel Vetter fb = set->fb; 2595b0d12325SDaniel Vetter 2596b0d12325SDaniel Vetter ret = crtc->funcs->set_config(set); 2597b0d12325SDaniel Vetter if (ret == 0) { 2598e13161afSMatt Roper crtc->primary->crtc = crtc; 25990fe27f06SDaniel Vetter crtc->primary->fb = fb; 26005cef29aaSDaniel Vetter } 2601cc85e121SDaniel Vetter 26025cef29aaSDaniel Vetter list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { 2603f4510a27SMatt Roper if (tmp->primary->fb) 2604f4510a27SMatt Roper drm_framebuffer_reference(tmp->primary->fb); 26053d30a59bSDaniel Vetter if (tmp->primary->old_fb) 26063d30a59bSDaniel Vetter drm_framebuffer_unreference(tmp->primary->old_fb); 26073d30a59bSDaniel Vetter tmp->primary->old_fb = NULL; 2608b0d12325SDaniel Vetter } 2609b0d12325SDaniel Vetter 2610b0d12325SDaniel Vetter return ret; 26112d13b679SDaniel Vetter } 26122d13b679SDaniel Vetter EXPORT_SYMBOL(drm_mode_set_config_internal); 26132d13b679SDaniel Vetter 2614af93629dSMatt Roper /** 2615ecb7e16bSGustavo Padovan * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode 2616ecb7e16bSGustavo Padovan * @mode: mode to query 2617ecb7e16bSGustavo Padovan * @hdisplay: hdisplay value to fill in 2618ecb7e16bSGustavo Padovan * @vdisplay: vdisplay value to fill in 2619ecb7e16bSGustavo Padovan * 2620ecb7e16bSGustavo Padovan * The vdisplay value will be doubled if the specified mode is a stereo mode of 2621ecb7e16bSGustavo Padovan * the appropriate layout. 2622ecb7e16bSGustavo Padovan */ 2623ecb7e16bSGustavo Padovan void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, 2624ecb7e16bSGustavo Padovan int *hdisplay, int *vdisplay) 2625ecb7e16bSGustavo Padovan { 2626ecb7e16bSGustavo Padovan struct drm_display_mode adjusted; 2627ecb7e16bSGustavo Padovan 2628ecb7e16bSGustavo Padovan drm_mode_copy(&adjusted, mode); 2629ecb7e16bSGustavo Padovan drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); 2630ecb7e16bSGustavo Padovan *hdisplay = adjusted.crtc_hdisplay; 2631ecb7e16bSGustavo Padovan *vdisplay = adjusted.crtc_vdisplay; 2632ecb7e16bSGustavo Padovan } 2633ecb7e16bSGustavo Padovan EXPORT_SYMBOL(drm_crtc_get_hv_timing); 2634ecb7e16bSGustavo Padovan 2635ecb7e16bSGustavo Padovan /** 2636af93629dSMatt Roper * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the 2637af93629dSMatt Roper * CRTC viewport 2638af93629dSMatt Roper * @crtc: CRTC that framebuffer will be displayed on 2639af93629dSMatt Roper * @x: x panning 2640af93629dSMatt Roper * @y: y panning 2641af93629dSMatt Roper * @mode: mode that framebuffer will be displayed under 2642af93629dSMatt Roper * @fb: framebuffer to check size of 2643c11e9283SDamien Lespiau */ 2644af93629dSMatt Roper int drm_crtc_check_viewport(const struct drm_crtc *crtc, 2645c11e9283SDamien Lespiau int x, int y, 2646c11e9283SDamien Lespiau const struct drm_display_mode *mode, 2647c11e9283SDamien Lespiau const struct drm_framebuffer *fb) 2648c11e9283SDamien Lespiau 2649c11e9283SDamien Lespiau { 2650c11e9283SDamien Lespiau int hdisplay, vdisplay; 2651c11e9283SDamien Lespiau 2652ecb7e16bSGustavo Padovan drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); 2653a0c1bbb0SDamien Lespiau 2654c11e9283SDamien Lespiau if (crtc->invert_dimensions) 2655c11e9283SDamien Lespiau swap(hdisplay, vdisplay); 2656c11e9283SDamien Lespiau 2657c11e9283SDamien Lespiau if (hdisplay > fb->width || 2658c11e9283SDamien Lespiau vdisplay > fb->height || 2659c11e9283SDamien Lespiau x > fb->width - hdisplay || 2660c11e9283SDamien Lespiau y > fb->height - vdisplay) { 2661c11e9283SDamien Lespiau DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", 2662c11e9283SDamien Lespiau fb->width, fb->height, hdisplay, vdisplay, x, y, 2663c11e9283SDamien Lespiau crtc->invert_dimensions ? " (inverted)" : ""); 2664c11e9283SDamien Lespiau return -ENOSPC; 2665c11e9283SDamien Lespiau } 2666c11e9283SDamien Lespiau 2667c11e9283SDamien Lespiau return 0; 2668c11e9283SDamien Lespiau } 2669af93629dSMatt Roper EXPORT_SYMBOL(drm_crtc_check_viewport); 2670c11e9283SDamien Lespiau 26712d13b679SDaniel Vetter /** 2672f453ba04SDave Airlie * drm_mode_setcrtc - set CRTC configuration 2673065a50edSDaniel Vetter * @dev: drm device for the ioctl 2674065a50edSDaniel Vetter * @data: data pointer for the ioctl 2675065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2676f453ba04SDave Airlie * 2677f453ba04SDave Airlie * Build a new CRTC configuration based on user request. 2678f453ba04SDave Airlie * 2679f453ba04SDave Airlie * Called by the user via ioctl. 2680f453ba04SDave Airlie * 2681c8e32cc1SDaniel Vetter * Returns: 26821a498633SDaniel Vetter * Zero on success, negative errno on failure. 2683f453ba04SDave Airlie */ 2684f453ba04SDave Airlie int drm_mode_setcrtc(struct drm_device *dev, void *data, 2685f453ba04SDave Airlie struct drm_file *file_priv) 2686f453ba04SDave Airlie { 2687f453ba04SDave Airlie struct drm_mode_config *config = &dev->mode_config; 2688f453ba04SDave Airlie struct drm_mode_crtc *crtc_req = data; 26896653cc8dSVille Syrjälä struct drm_crtc *crtc; 2690f453ba04SDave Airlie struct drm_connector **connector_set = NULL, *connector; 2691f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 2692f453ba04SDave Airlie struct drm_display_mode *mode = NULL; 2693f453ba04SDave Airlie struct drm_mode_set set; 2694f453ba04SDave Airlie uint32_t __user *set_connectors_ptr; 26954a1b0714SLaurent Pinchart int ret; 2696f453ba04SDave Airlie int i; 2697f453ba04SDave Airlie 2698fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2699fb3b06c8SDave Airlie return -EINVAL; 2700fb3b06c8SDave Airlie 27011d97e915SVille Syrjälä /* For some reason crtc x/y offsets are signed internally. */ 27021d97e915SVille Syrjälä if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) 27031d97e915SVille Syrjälä return -ERANGE; 27041d97e915SVille Syrjälä 270584849903SDaniel Vetter drm_modeset_lock_all(dev); 2706a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_req->crtc_id); 2707a2b34e22SRob Clark if (!crtc) { 270858367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 2709f27657f2SVille Syrjälä ret = -ENOENT; 2710f453ba04SDave Airlie goto out; 2711f453ba04SDave Airlie } 27129440106bSJerome Glisse DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 2713f453ba04SDave Airlie 2714f453ba04SDave Airlie if (crtc_req->mode_valid) { 2715f453ba04SDave Airlie /* If we have a mode we need a framebuffer. */ 2716f453ba04SDave Airlie /* If we pass -1, set the mode with the currently bound fb */ 2717f453ba04SDave Airlie if (crtc_req->fb_id == -1) { 2718f4510a27SMatt Roper if (!crtc->primary->fb) { 27196653cc8dSVille Syrjälä DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 27206653cc8dSVille Syrjälä ret = -EINVAL; 27216653cc8dSVille Syrjälä goto out; 27226653cc8dSVille Syrjälä } 2723f4510a27SMatt Roper fb = crtc->primary->fb; 2724b0d12325SDaniel Vetter /* Make refcounting symmetric with the lookup path. */ 2725b0d12325SDaniel Vetter drm_framebuffer_reference(fb); 2726f453ba04SDave Airlie } else { 2727786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); 2728786b99edSDaniel Vetter if (!fb) { 272958367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown FB ID%d\n", 273058367ed6SZhao Yakui crtc_req->fb_id); 273137c4e705SVille Syrjälä ret = -ENOENT; 2732f453ba04SDave Airlie goto out; 2733f453ba04SDave Airlie } 2734f453ba04SDave Airlie } 2735f453ba04SDave Airlie 2736f453ba04SDave Airlie mode = drm_mode_create(dev); 2737ee34ab5bSVille Syrjälä if (!mode) { 2738ee34ab5bSVille Syrjälä ret = -ENOMEM; 2739ee34ab5bSVille Syrjälä goto out; 2740ee34ab5bSVille Syrjälä } 2741ee34ab5bSVille Syrjälä 2742934a8a89SDaniel Stone ret = drm_mode_convert_umode(mode, &crtc_req->mode); 274390367bf6SVille Syrjälä if (ret) { 274490367bf6SVille Syrjälä DRM_DEBUG_KMS("Invalid mode\n"); 274590367bf6SVille Syrjälä goto out; 274690367bf6SVille Syrjälä } 274790367bf6SVille Syrjälä 2748f453ba04SDave Airlie drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 27495f61bb42SVille Syrjälä 27507eb5f302SLaurent Pinchart /* 27517eb5f302SLaurent Pinchart * Check whether the primary plane supports the fb pixel format. 27527eb5f302SLaurent Pinchart * Drivers not implementing the universal planes API use a 27537eb5f302SLaurent Pinchart * default formats list provided by the DRM core which doesn't 27547eb5f302SLaurent Pinchart * match real hardware capabilities. Skip the check in that 27557eb5f302SLaurent Pinchart * case. 27567eb5f302SLaurent Pinchart */ 27577eb5f302SLaurent Pinchart if (!crtc->primary->format_default) { 27587eb5f302SLaurent Pinchart ret = drm_plane_check_pixel_format(crtc->primary, 27597eb5f302SLaurent Pinchart fb->pixel_format); 27607eb5f302SLaurent Pinchart if (ret) { 27617eb5f302SLaurent Pinchart DRM_DEBUG_KMS("Invalid pixel format %s\n", 27627eb5f302SLaurent Pinchart drm_get_format_name(fb->pixel_format)); 27637eb5f302SLaurent Pinchart goto out; 27647eb5f302SLaurent Pinchart } 27657eb5f302SLaurent Pinchart } 27667eb5f302SLaurent Pinchart 2767c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, 2768c11e9283SDamien Lespiau mode, fb); 2769c11e9283SDamien Lespiau if (ret) 27705f61bb42SVille Syrjälä goto out; 2771c11e9283SDamien Lespiau 2772f453ba04SDave Airlie } 2773f453ba04SDave Airlie 2774f453ba04SDave Airlie if (crtc_req->count_connectors == 0 && mode) { 277558367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 2776f453ba04SDave Airlie ret = -EINVAL; 2777f453ba04SDave Airlie goto out; 2778f453ba04SDave Airlie } 2779f453ba04SDave Airlie 27807781de74SJakob Bornecrantz if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 278158367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 2782f453ba04SDave Airlie crtc_req->count_connectors); 2783f453ba04SDave Airlie ret = -EINVAL; 2784f453ba04SDave Airlie goto out; 2785f453ba04SDave Airlie } 2786f453ba04SDave Airlie 2787f453ba04SDave Airlie if (crtc_req->count_connectors > 0) { 2788f453ba04SDave Airlie u32 out_id; 2789f453ba04SDave Airlie 2790f453ba04SDave Airlie /* Avoid unbounded kernel memory allocation */ 2791f453ba04SDave Airlie if (crtc_req->count_connectors > config->num_connector) { 2792f453ba04SDave Airlie ret = -EINVAL; 2793f453ba04SDave Airlie goto out; 2794f453ba04SDave Airlie } 2795f453ba04SDave Airlie 27962f6c5389SThierry Reding connector_set = kmalloc_array(crtc_req->count_connectors, 2797f453ba04SDave Airlie sizeof(struct drm_connector *), 2798f453ba04SDave Airlie GFP_KERNEL); 2799f453ba04SDave Airlie if (!connector_set) { 2800f453ba04SDave Airlie ret = -ENOMEM; 2801f453ba04SDave Airlie goto out; 2802f453ba04SDave Airlie } 2803f453ba04SDave Airlie 2804f453ba04SDave Airlie for (i = 0; i < crtc_req->count_connectors; i++) { 280581f6c7f8SVille Syrjälä set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 2806f453ba04SDave Airlie if (get_user(out_id, &set_connectors_ptr[i])) { 2807f453ba04SDave Airlie ret = -EFAULT; 2808f453ba04SDave Airlie goto out; 2809f453ba04SDave Airlie } 2810f453ba04SDave Airlie 2811a2b34e22SRob Clark connector = drm_connector_find(dev, out_id); 2812a2b34e22SRob Clark if (!connector) { 281358367ed6SZhao Yakui DRM_DEBUG_KMS("Connector id %d unknown\n", 281458367ed6SZhao Yakui out_id); 2815f27657f2SVille Syrjälä ret = -ENOENT; 2816f453ba04SDave Airlie goto out; 2817f453ba04SDave Airlie } 28189440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 28199440106bSJerome Glisse connector->base.id, 282025933820SJani Nikula connector->name); 2821f453ba04SDave Airlie 2822f453ba04SDave Airlie connector_set[i] = connector; 2823f453ba04SDave Airlie } 2824f453ba04SDave Airlie } 2825f453ba04SDave Airlie 2826f453ba04SDave Airlie set.crtc = crtc; 2827f453ba04SDave Airlie set.x = crtc_req->x; 2828f453ba04SDave Airlie set.y = crtc_req->y; 2829f453ba04SDave Airlie set.mode = mode; 2830f453ba04SDave Airlie set.connectors = connector_set; 2831f453ba04SDave Airlie set.num_connectors = crtc_req->count_connectors; 2832f453ba04SDave Airlie set.fb = fb; 28332d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 2834f453ba04SDave Airlie 2835f453ba04SDave Airlie out: 2836b0d12325SDaniel Vetter if (fb) 2837b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 2838b0d12325SDaniel Vetter 2839f453ba04SDave Airlie kfree(connector_set); 2840ee34ab5bSVille Syrjälä drm_mode_destroy(dev, mode); 284184849903SDaniel Vetter drm_modeset_unlock_all(dev); 2842f453ba04SDave Airlie return ret; 2843f453ba04SDave Airlie } 2844f453ba04SDave Airlie 2845161d0dc1SMatt Roper /** 2846161d0dc1SMatt Roper * drm_mode_cursor_universal - translate legacy cursor ioctl call into a 2847161d0dc1SMatt Roper * universal plane handler call 2848161d0dc1SMatt Roper * @crtc: crtc to update cursor for 2849161d0dc1SMatt Roper * @req: data pointer for the ioctl 2850161d0dc1SMatt Roper * @file_priv: drm file for the ioctl call 2851161d0dc1SMatt Roper * 2852161d0dc1SMatt Roper * Legacy cursor ioctl's work directly with driver buffer handles. To 2853161d0dc1SMatt Roper * translate legacy ioctl calls into universal plane handler calls, we need to 2854161d0dc1SMatt Roper * wrap the native buffer handle in a drm_framebuffer. 2855161d0dc1SMatt Roper * 2856161d0dc1SMatt Roper * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB 2857161d0dc1SMatt Roper * buffer with a pitch of 4*width; the universal plane interface should be used 2858161d0dc1SMatt Roper * directly in cases where the hardware can support other buffer settings and 2859161d0dc1SMatt Roper * userspace wants to make use of these capabilities. 2860161d0dc1SMatt Roper * 2861161d0dc1SMatt Roper * Returns: 28621a498633SDaniel Vetter * Zero on success, negative errno on failure. 2863161d0dc1SMatt Roper */ 2864161d0dc1SMatt Roper static int drm_mode_cursor_universal(struct drm_crtc *crtc, 2865161d0dc1SMatt Roper struct drm_mode_cursor2 *req, 2866161d0dc1SMatt Roper struct drm_file *file_priv) 2867161d0dc1SMatt Roper { 2868161d0dc1SMatt Roper struct drm_device *dev = crtc->dev; 2869161d0dc1SMatt Roper struct drm_framebuffer *fb = NULL; 2870161d0dc1SMatt Roper struct drm_mode_fb_cmd2 fbreq = { 2871161d0dc1SMatt Roper .width = req->width, 2872161d0dc1SMatt Roper .height = req->height, 2873161d0dc1SMatt Roper .pixel_format = DRM_FORMAT_ARGB8888, 2874161d0dc1SMatt Roper .pitches = { req->width * 4 }, 2875161d0dc1SMatt Roper .handles = { req->handle }, 2876161d0dc1SMatt Roper }; 2877161d0dc1SMatt Roper int32_t crtc_x, crtc_y; 2878161d0dc1SMatt Roper uint32_t crtc_w = 0, crtc_h = 0; 2879161d0dc1SMatt Roper uint32_t src_w = 0, src_h = 0; 2880161d0dc1SMatt Roper int ret = 0; 2881161d0dc1SMatt Roper 2882161d0dc1SMatt Roper BUG_ON(!crtc->cursor); 2883f2b50c11SDaniel Vetter WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); 2884161d0dc1SMatt Roper 2885161d0dc1SMatt Roper /* 2886161d0dc1SMatt Roper * Obtain fb we'll be using (either new or existing) and take an extra 2887161d0dc1SMatt Roper * reference to it if fb != null. setplane will take care of dropping 2888161d0dc1SMatt Roper * the reference if the plane update fails. 2889161d0dc1SMatt Roper */ 2890161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_BO) { 2891161d0dc1SMatt Roper if (req->handle) { 28929a6f5130SChris Wilson fb = internal_framebuffer_create(dev, &fbreq, file_priv); 2893161d0dc1SMatt Roper if (IS_ERR(fb)) { 2894161d0dc1SMatt Roper DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); 2895161d0dc1SMatt Roper return PTR_ERR(fb); 2896161d0dc1SMatt Roper } 2897161d0dc1SMatt Roper } else { 2898161d0dc1SMatt Roper fb = NULL; 2899161d0dc1SMatt Roper } 2900161d0dc1SMatt Roper } else { 2901161d0dc1SMatt Roper fb = crtc->cursor->fb; 2902161d0dc1SMatt Roper if (fb) 2903161d0dc1SMatt Roper drm_framebuffer_reference(fb); 2904161d0dc1SMatt Roper } 2905161d0dc1SMatt Roper 2906161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_MOVE) { 2907161d0dc1SMatt Roper crtc_x = req->x; 2908161d0dc1SMatt Roper crtc_y = req->y; 2909161d0dc1SMatt Roper } else { 2910161d0dc1SMatt Roper crtc_x = crtc->cursor_x; 2911161d0dc1SMatt Roper crtc_y = crtc->cursor_y; 2912161d0dc1SMatt Roper } 2913161d0dc1SMatt Roper 2914161d0dc1SMatt Roper if (fb) { 2915161d0dc1SMatt Roper crtc_w = fb->width; 2916161d0dc1SMatt Roper crtc_h = fb->height; 2917161d0dc1SMatt Roper src_w = fb->width << 16; 2918161d0dc1SMatt Roper src_h = fb->height << 16; 2919161d0dc1SMatt Roper } 2920161d0dc1SMatt Roper 2921161d0dc1SMatt Roper /* 2922161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 2923161d0dc1SMatt Roper * framebuffer depending on success. 2924161d0dc1SMatt Roper */ 2925f2b50c11SDaniel Vetter ret = __setplane_internal(crtc->cursor, crtc, fb, 2926161d0dc1SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 2927161d0dc1SMatt Roper 0, 0, src_w, src_h); 2928161d0dc1SMatt Roper 2929161d0dc1SMatt Roper /* Update successful; save new cursor position, if necessary */ 2930161d0dc1SMatt Roper if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { 2931161d0dc1SMatt Roper crtc->cursor_x = req->x; 2932161d0dc1SMatt Roper crtc->cursor_y = req->y; 2933161d0dc1SMatt Roper } 2934161d0dc1SMatt Roper 2935161d0dc1SMatt Roper return ret; 2936161d0dc1SMatt Roper } 2937161d0dc1SMatt Roper 29384c813d4dSDave Airlie static int drm_mode_cursor_common(struct drm_device *dev, 29394c813d4dSDave Airlie struct drm_mode_cursor2 *req, 29404c813d4dSDave Airlie struct drm_file *file_priv) 2941f453ba04SDave Airlie { 2942f453ba04SDave Airlie struct drm_crtc *crtc; 2943f453ba04SDave Airlie int ret = 0; 2944f453ba04SDave Airlie 2945fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2946fb3b06c8SDave Airlie return -EINVAL; 2947fb3b06c8SDave Airlie 29487c4eaca4SJakob Bornecrantz if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) 2949f453ba04SDave Airlie return -EINVAL; 2950f453ba04SDave Airlie 2951a2b34e22SRob Clark crtc = drm_crtc_find(dev, req->crtc_id); 2952a2b34e22SRob Clark if (!crtc) { 295358367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); 2954f27657f2SVille Syrjälä return -ENOENT; 2955f453ba04SDave Airlie } 2956f453ba04SDave Airlie 2957161d0dc1SMatt Roper /* 2958161d0dc1SMatt Roper * If this crtc has a universal cursor plane, call that plane's update 2959161d0dc1SMatt Roper * handler rather than using legacy cursor handlers. 2960161d0dc1SMatt Roper */ 29614d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->cursor); 2962f2b50c11SDaniel Vetter if (crtc->cursor) { 2963f2b50c11SDaniel Vetter ret = drm_mode_cursor_universal(crtc, req, file_priv); 2964f2b50c11SDaniel Vetter goto out; 2965f2b50c11SDaniel Vetter } 2966f2b50c11SDaniel Vetter 2967f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_BO) { 29684c813d4dSDave Airlie if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { 2969f453ba04SDave Airlie ret = -ENXIO; 2970f453ba04SDave Airlie goto out; 2971f453ba04SDave Airlie } 2972f453ba04SDave Airlie /* Turns off the cursor if handle is 0 */ 29734c813d4dSDave Airlie if (crtc->funcs->cursor_set2) 29744c813d4dSDave Airlie ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, 29754c813d4dSDave Airlie req->width, req->height, req->hot_x, req->hot_y); 29764c813d4dSDave Airlie else 2977f453ba04SDave Airlie ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, 2978f453ba04SDave Airlie req->width, req->height); 2979f453ba04SDave Airlie } 2980f453ba04SDave Airlie 2981f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_MOVE) { 2982f453ba04SDave Airlie if (crtc->funcs->cursor_move) { 2983f453ba04SDave Airlie ret = crtc->funcs->cursor_move(crtc, req->x, req->y); 2984f453ba04SDave Airlie } else { 2985f453ba04SDave Airlie ret = -EFAULT; 2986f453ba04SDave Airlie goto out; 2987f453ba04SDave Airlie } 2988f453ba04SDave Airlie } 2989f453ba04SDave Airlie out: 2990d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 2991dac35663SDaniel Vetter 2992f453ba04SDave Airlie return ret; 29934c813d4dSDave Airlie 29944c813d4dSDave Airlie } 2995c8e32cc1SDaniel Vetter 2996c8e32cc1SDaniel Vetter 2997c8e32cc1SDaniel Vetter /** 2998c8e32cc1SDaniel Vetter * drm_mode_cursor_ioctl - set CRTC's cursor configuration 2999c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3000c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3001c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3002c8e32cc1SDaniel Vetter * 3003c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. 3004c8e32cc1SDaniel Vetter * 3005c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3006c8e32cc1SDaniel Vetter * 3007c8e32cc1SDaniel Vetter * Returns: 30081a498633SDaniel Vetter * Zero on success, negative errno on failure. 3009c8e32cc1SDaniel Vetter */ 30104c813d4dSDave Airlie int drm_mode_cursor_ioctl(struct drm_device *dev, 30114c813d4dSDave Airlie void *data, struct drm_file *file_priv) 30124c813d4dSDave Airlie { 30134c813d4dSDave Airlie struct drm_mode_cursor *req = data; 30144c813d4dSDave Airlie struct drm_mode_cursor2 new_req; 30154c813d4dSDave Airlie 30164c813d4dSDave Airlie memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); 30174c813d4dSDave Airlie new_req.hot_x = new_req.hot_y = 0; 30184c813d4dSDave Airlie 30194c813d4dSDave Airlie return drm_mode_cursor_common(dev, &new_req, file_priv); 30204c813d4dSDave Airlie } 30214c813d4dSDave Airlie 3022c8e32cc1SDaniel Vetter /** 3023c8e32cc1SDaniel Vetter * drm_mode_cursor2_ioctl - set CRTC's cursor configuration 3024c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3025c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3026c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3027c8e32cc1SDaniel Vetter * 3028c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. This implements the 2nd 3029c8e32cc1SDaniel Vetter * version of the cursor ioctl, which allows userspace to additionally specify 3030c8e32cc1SDaniel Vetter * the hotspot of the pointer. 3031c8e32cc1SDaniel Vetter * 3032c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3033c8e32cc1SDaniel Vetter * 3034c8e32cc1SDaniel Vetter * Returns: 30351a498633SDaniel Vetter * Zero on success, negative errno on failure. 3036c8e32cc1SDaniel Vetter */ 30374c813d4dSDave Airlie int drm_mode_cursor2_ioctl(struct drm_device *dev, 30384c813d4dSDave Airlie void *data, struct drm_file *file_priv) 30394c813d4dSDave Airlie { 30404c813d4dSDave Airlie struct drm_mode_cursor2 *req = data; 30414dfd909fSThierry Reding 30424c813d4dSDave Airlie return drm_mode_cursor_common(dev, req, file_priv); 3043f453ba04SDave Airlie } 3044f453ba04SDave Airlie 3045c8e32cc1SDaniel Vetter /** 3046c8e32cc1SDaniel Vetter * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description 3047c8e32cc1SDaniel Vetter * @bpp: bits per pixels 3048c8e32cc1SDaniel Vetter * @depth: bit depth per pixel 3049c8e32cc1SDaniel Vetter * 3050c8e32cc1SDaniel Vetter * Computes a drm fourcc pixel format code for the given @bpp/@depth values. 3051c8e32cc1SDaniel Vetter * Useful in fbdev emulation code, since that deals in those values. 3052c8e32cc1SDaniel Vetter */ 3053308e5bcbSJesse Barnes uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) 3054308e5bcbSJesse Barnes { 3055308e5bcbSJesse Barnes uint32_t fmt; 3056308e5bcbSJesse Barnes 3057308e5bcbSJesse Barnes switch (bpp) { 3058308e5bcbSJesse Barnes case 8: 3059d84f031bSVille Syrjälä fmt = DRM_FORMAT_C8; 3060308e5bcbSJesse Barnes break; 3061308e5bcbSJesse Barnes case 16: 3062308e5bcbSJesse Barnes if (depth == 15) 306304b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB1555; 3064308e5bcbSJesse Barnes else 306504b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB565; 3066308e5bcbSJesse Barnes break; 3067308e5bcbSJesse Barnes case 24: 306804b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB888; 3069308e5bcbSJesse Barnes break; 3070308e5bcbSJesse Barnes case 32: 3071308e5bcbSJesse Barnes if (depth == 24) 307204b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 3073308e5bcbSJesse Barnes else if (depth == 30) 307404b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB2101010; 3075308e5bcbSJesse Barnes else 307604b3924dSVille Syrjälä fmt = DRM_FORMAT_ARGB8888; 3077308e5bcbSJesse Barnes break; 3078308e5bcbSJesse Barnes default: 307904b3924dSVille Syrjälä DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); 308004b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 3081308e5bcbSJesse Barnes break; 3082308e5bcbSJesse Barnes } 3083308e5bcbSJesse Barnes 3084308e5bcbSJesse Barnes return fmt; 3085308e5bcbSJesse Barnes } 3086308e5bcbSJesse Barnes EXPORT_SYMBOL(drm_mode_legacy_fb_format); 3087308e5bcbSJesse Barnes 3088f453ba04SDave Airlie /** 3089f453ba04SDave Airlie * drm_mode_addfb - add an FB to the graphics configuration 3090065a50edSDaniel Vetter * @dev: drm device for the ioctl 3091065a50edSDaniel Vetter * @data: data pointer for the ioctl 3092065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3093f453ba04SDave Airlie * 3094c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request. This is the 3095209f5527SChuck Ebbert * original addfb ioctl which only supported RGB formats. 3096f453ba04SDave Airlie * 3097f453ba04SDave Airlie * Called by the user via ioctl. 3098f453ba04SDave Airlie * 3099c8e32cc1SDaniel Vetter * Returns: 31001a498633SDaniel Vetter * Zero on success, negative errno on failure. 3101f453ba04SDave Airlie */ 3102f453ba04SDave Airlie int drm_mode_addfb(struct drm_device *dev, 3103f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3104f453ba04SDave Airlie { 3105308e5bcbSJesse Barnes struct drm_mode_fb_cmd *or = data; 3106308e5bcbSJesse Barnes struct drm_mode_fb_cmd2 r = {}; 3107228f2cb3SChuck Ebbert int ret; 3108308e5bcbSJesse Barnes 3109228f2cb3SChuck Ebbert /* convert to new format and call new ioctl */ 3110308e5bcbSJesse Barnes r.fb_id = or->fb_id; 3111308e5bcbSJesse Barnes r.width = or->width; 3112308e5bcbSJesse Barnes r.height = or->height; 3113308e5bcbSJesse Barnes r.pitches[0] = or->pitch; 3114308e5bcbSJesse Barnes r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); 3115308e5bcbSJesse Barnes r.handles[0] = or->handle; 3116308e5bcbSJesse Barnes 3117228f2cb3SChuck Ebbert ret = drm_mode_addfb2(dev, &r, file_priv); 3118228f2cb3SChuck Ebbert if (ret) 3119228f2cb3SChuck Ebbert return ret; 3120308e5bcbSJesse Barnes 3121228f2cb3SChuck Ebbert or->fb_id = r.fb_id; 31224b096ac1SDaniel Vetter 3123baf698b0SDaniel Vetter return 0; 3124308e5bcbSJesse Barnes } 3125308e5bcbSJesse Barnes 3126cff91b62SVille Syrjälä static int format_check(const struct drm_mode_fb_cmd2 *r) 3127935b5977SVille Syrjälä { 3128935b5977SVille Syrjälä uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; 3129935b5977SVille Syrjälä 3130935b5977SVille Syrjälä switch (format) { 3131935b5977SVille Syrjälä case DRM_FORMAT_C8: 3132935b5977SVille Syrjälä case DRM_FORMAT_RGB332: 3133935b5977SVille Syrjälä case DRM_FORMAT_BGR233: 3134935b5977SVille Syrjälä case DRM_FORMAT_XRGB4444: 3135935b5977SVille Syrjälä case DRM_FORMAT_XBGR4444: 3136935b5977SVille Syrjälä case DRM_FORMAT_RGBX4444: 3137935b5977SVille Syrjälä case DRM_FORMAT_BGRX4444: 3138935b5977SVille Syrjälä case DRM_FORMAT_ARGB4444: 3139935b5977SVille Syrjälä case DRM_FORMAT_ABGR4444: 3140935b5977SVille Syrjälä case DRM_FORMAT_RGBA4444: 3141935b5977SVille Syrjälä case DRM_FORMAT_BGRA4444: 3142935b5977SVille Syrjälä case DRM_FORMAT_XRGB1555: 3143935b5977SVille Syrjälä case DRM_FORMAT_XBGR1555: 3144935b5977SVille Syrjälä case DRM_FORMAT_RGBX5551: 3145935b5977SVille Syrjälä case DRM_FORMAT_BGRX5551: 3146935b5977SVille Syrjälä case DRM_FORMAT_ARGB1555: 3147935b5977SVille Syrjälä case DRM_FORMAT_ABGR1555: 3148935b5977SVille Syrjälä case DRM_FORMAT_RGBA5551: 3149935b5977SVille Syrjälä case DRM_FORMAT_BGRA5551: 3150935b5977SVille Syrjälä case DRM_FORMAT_RGB565: 3151935b5977SVille Syrjälä case DRM_FORMAT_BGR565: 3152935b5977SVille Syrjälä case DRM_FORMAT_RGB888: 3153935b5977SVille Syrjälä case DRM_FORMAT_BGR888: 3154935b5977SVille Syrjälä case DRM_FORMAT_XRGB8888: 3155935b5977SVille Syrjälä case DRM_FORMAT_XBGR8888: 3156935b5977SVille Syrjälä case DRM_FORMAT_RGBX8888: 3157935b5977SVille Syrjälä case DRM_FORMAT_BGRX8888: 3158935b5977SVille Syrjälä case DRM_FORMAT_ARGB8888: 3159935b5977SVille Syrjälä case DRM_FORMAT_ABGR8888: 3160935b5977SVille Syrjälä case DRM_FORMAT_RGBA8888: 3161935b5977SVille Syrjälä case DRM_FORMAT_BGRA8888: 3162935b5977SVille Syrjälä case DRM_FORMAT_XRGB2101010: 3163935b5977SVille Syrjälä case DRM_FORMAT_XBGR2101010: 3164935b5977SVille Syrjälä case DRM_FORMAT_RGBX1010102: 3165935b5977SVille Syrjälä case DRM_FORMAT_BGRX1010102: 3166935b5977SVille Syrjälä case DRM_FORMAT_ARGB2101010: 3167935b5977SVille Syrjälä case DRM_FORMAT_ABGR2101010: 3168935b5977SVille Syrjälä case DRM_FORMAT_RGBA1010102: 3169935b5977SVille Syrjälä case DRM_FORMAT_BGRA1010102: 3170935b5977SVille Syrjälä case DRM_FORMAT_YUYV: 3171935b5977SVille Syrjälä case DRM_FORMAT_YVYU: 3172935b5977SVille Syrjälä case DRM_FORMAT_UYVY: 3173935b5977SVille Syrjälä case DRM_FORMAT_VYUY: 3174935b5977SVille Syrjälä case DRM_FORMAT_AYUV: 3175935b5977SVille Syrjälä case DRM_FORMAT_NV12: 3176935b5977SVille Syrjälä case DRM_FORMAT_NV21: 3177935b5977SVille Syrjälä case DRM_FORMAT_NV16: 3178935b5977SVille Syrjälä case DRM_FORMAT_NV61: 3179ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 3180ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 3181935b5977SVille Syrjälä case DRM_FORMAT_YUV410: 3182935b5977SVille Syrjälä case DRM_FORMAT_YVU410: 3183935b5977SVille Syrjälä case DRM_FORMAT_YUV411: 3184935b5977SVille Syrjälä case DRM_FORMAT_YVU411: 3185935b5977SVille Syrjälä case DRM_FORMAT_YUV420: 3186935b5977SVille Syrjälä case DRM_FORMAT_YVU420: 3187935b5977SVille Syrjälä case DRM_FORMAT_YUV422: 3188935b5977SVille Syrjälä case DRM_FORMAT_YVU422: 3189935b5977SVille Syrjälä case DRM_FORMAT_YUV444: 3190935b5977SVille Syrjälä case DRM_FORMAT_YVU444: 3191935b5977SVille Syrjälä return 0; 3192935b5977SVille Syrjälä default: 319323c453a4SVille Syrjälä DRM_DEBUG_KMS("invalid pixel format %s\n", 319423c453a4SVille Syrjälä drm_get_format_name(r->pixel_format)); 3195935b5977SVille Syrjälä return -EINVAL; 3196935b5977SVille Syrjälä } 3197935b5977SVille Syrjälä } 3198935b5977SVille Syrjälä 3199cff91b62SVille Syrjälä static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) 3200d1b45d5fSVille Syrjälä { 3201d1b45d5fSVille Syrjälä int ret, hsub, vsub, num_planes, i; 3202d1b45d5fSVille Syrjälä 3203d1b45d5fSVille Syrjälä ret = format_check(r); 3204d1b45d5fSVille Syrjälä if (ret) { 32056ba6d03eSVille Syrjälä DRM_DEBUG_KMS("bad framebuffer format %s\n", 32066ba6d03eSVille Syrjälä drm_get_format_name(r->pixel_format)); 3207d1b45d5fSVille Syrjälä return ret; 3208d1b45d5fSVille Syrjälä } 3209d1b45d5fSVille Syrjälä 3210d1b45d5fSVille Syrjälä hsub = drm_format_horz_chroma_subsampling(r->pixel_format); 3211d1b45d5fSVille Syrjälä vsub = drm_format_vert_chroma_subsampling(r->pixel_format); 3212d1b45d5fSVille Syrjälä num_planes = drm_format_num_planes(r->pixel_format); 3213d1b45d5fSVille Syrjälä 3214d1b45d5fSVille Syrjälä if (r->width == 0 || r->width % hsub) { 3215209f5527SChuck Ebbert DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); 3216d1b45d5fSVille Syrjälä return -EINVAL; 3217d1b45d5fSVille Syrjälä } 3218d1b45d5fSVille Syrjälä 3219d1b45d5fSVille Syrjälä if (r->height == 0 || r->height % vsub) { 32201aa1b11cSDave Airlie DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); 3221d1b45d5fSVille Syrjälä return -EINVAL; 3222d1b45d5fSVille Syrjälä } 3223d1b45d5fSVille Syrjälä 3224d1b45d5fSVille Syrjälä for (i = 0; i < num_planes; i++) { 3225d1b45d5fSVille Syrjälä unsigned int width = r->width / (i != 0 ? hsub : 1); 3226b180b5d1SVille Syrjälä unsigned int height = r->height / (i != 0 ? vsub : 1); 3227b180b5d1SVille Syrjälä unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); 3228d1b45d5fSVille Syrjälä 3229d1b45d5fSVille Syrjälä if (!r->handles[i]) { 32301aa1b11cSDave Airlie DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); 3231d1b45d5fSVille Syrjälä return -EINVAL; 3232d1b45d5fSVille Syrjälä } 3233d1b45d5fSVille Syrjälä 3234b180b5d1SVille Syrjälä if ((uint64_t) width * cpp > UINT_MAX) 3235b180b5d1SVille Syrjälä return -ERANGE; 3236b180b5d1SVille Syrjälä 3237b180b5d1SVille Syrjälä if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) 3238b180b5d1SVille Syrjälä return -ERANGE; 3239b180b5d1SVille Syrjälä 3240b180b5d1SVille Syrjälä if (r->pitches[i] < width * cpp) { 32411aa1b11cSDave Airlie DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); 3242d1b45d5fSVille Syrjälä return -EINVAL; 3243d1b45d5fSVille Syrjälä } 3244e3eb3250SRob Clark 3245e3eb3250SRob Clark if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { 3246e3eb3250SRob Clark DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", 3247e3eb3250SRob Clark r->modifier[i], i); 3248e3eb3250SRob Clark return -EINVAL; 3249e3eb3250SRob Clark } 3250d1b45d5fSVille Syrjälä } 3251d1b45d5fSVille Syrjälä 3252bbe16a40SDaniel Vetter for (i = num_planes; i < 4; i++) { 3253bbe16a40SDaniel Vetter if (r->modifier[i]) { 3254bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); 3255bbe16a40SDaniel Vetter return -EINVAL; 3256bbe16a40SDaniel Vetter } 3257bbe16a40SDaniel Vetter 3258bbe16a40SDaniel Vetter /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ 3259bbe16a40SDaniel Vetter if (!(r->flags & DRM_MODE_FB_MODIFIERS)) 3260bbe16a40SDaniel Vetter continue; 3261bbe16a40SDaniel Vetter 3262bbe16a40SDaniel Vetter if (r->handles[i]) { 3263bbe16a40SDaniel Vetter DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); 3264bbe16a40SDaniel Vetter return -EINVAL; 3265bbe16a40SDaniel Vetter } 3266bbe16a40SDaniel Vetter 3267bbe16a40SDaniel Vetter if (r->pitches[i]) { 3268bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); 3269bbe16a40SDaniel Vetter return -EINVAL; 3270bbe16a40SDaniel Vetter } 3271bbe16a40SDaniel Vetter 3272bbe16a40SDaniel Vetter if (r->offsets[i]) { 3273bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); 3274bbe16a40SDaniel Vetter return -EINVAL; 3275bbe16a40SDaniel Vetter } 3276bbe16a40SDaniel Vetter } 3277bbe16a40SDaniel Vetter 3278d1b45d5fSVille Syrjälä return 0; 3279d1b45d5fSVille Syrjälä } 3280d1b45d5fSVille Syrjälä 32819a6f5130SChris Wilson static struct drm_framebuffer * 32829a6f5130SChris Wilson internal_framebuffer_create(struct drm_device *dev, 3283c394c2b0SMatt Roper struct drm_mode_fb_cmd2 *r, 3284c394c2b0SMatt Roper struct drm_file *file_priv) 3285c394c2b0SMatt Roper { 3286c394c2b0SMatt Roper struct drm_mode_config *config = &dev->mode_config; 3287c394c2b0SMatt Roper struct drm_framebuffer *fb; 3288c394c2b0SMatt Roper int ret; 3289c394c2b0SMatt Roper 3290e3eb3250SRob Clark if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { 3291c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); 3292c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3293c394c2b0SMatt Roper } 3294c394c2b0SMatt Roper 3295c394c2b0SMatt Roper if ((config->min_width > r->width) || (r->width > config->max_width)) { 3296c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", 3297c394c2b0SMatt Roper r->width, config->min_width, config->max_width); 3298c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3299c394c2b0SMatt Roper } 3300c394c2b0SMatt Roper if ((config->min_height > r->height) || (r->height > config->max_height)) { 3301c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", 3302c394c2b0SMatt Roper r->height, config->min_height, config->max_height); 3303c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3304c394c2b0SMatt Roper } 3305c394c2b0SMatt Roper 3306e3eb3250SRob Clark if (r->flags & DRM_MODE_FB_MODIFIERS && 3307e3eb3250SRob Clark !dev->mode_config.allow_fb_modifiers) { 3308e3eb3250SRob Clark DRM_DEBUG_KMS("driver does not support fb modifiers\n"); 3309e3eb3250SRob Clark return ERR_PTR(-EINVAL); 3310e3eb3250SRob Clark } 3311e3eb3250SRob Clark 3312c394c2b0SMatt Roper ret = framebuffer_check(r); 3313c394c2b0SMatt Roper if (ret) 3314c394c2b0SMatt Roper return ERR_PTR(ret); 3315c394c2b0SMatt Roper 3316c394c2b0SMatt Roper fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); 3317c394c2b0SMatt Roper if (IS_ERR(fb)) { 3318c394c2b0SMatt Roper DRM_DEBUG_KMS("could not create framebuffer\n"); 3319c394c2b0SMatt Roper return fb; 3320c394c2b0SMatt Roper } 3321c394c2b0SMatt Roper 3322c394c2b0SMatt Roper return fb; 3323c394c2b0SMatt Roper } 3324c394c2b0SMatt Roper 3325308e5bcbSJesse Barnes /** 3326308e5bcbSJesse Barnes * drm_mode_addfb2 - add an FB to the graphics configuration 3327065a50edSDaniel Vetter * @dev: drm device for the ioctl 3328065a50edSDaniel Vetter * @data: data pointer for the ioctl 3329065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3330308e5bcbSJesse Barnes * 3331c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request with format. This is 3332c8e32cc1SDaniel Vetter * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers 3333c8e32cc1SDaniel Vetter * and uses fourcc codes as pixel format specifiers. 3334308e5bcbSJesse Barnes * 3335308e5bcbSJesse Barnes * Called by the user via ioctl. 3336308e5bcbSJesse Barnes * 3337c8e32cc1SDaniel Vetter * Returns: 33381a498633SDaniel Vetter * Zero on success, negative errno on failure. 3339308e5bcbSJesse Barnes */ 3340308e5bcbSJesse Barnes int drm_mode_addfb2(struct drm_device *dev, 3341308e5bcbSJesse Barnes void *data, struct drm_file *file_priv) 3342308e5bcbSJesse Barnes { 33439a6f5130SChris Wilson struct drm_mode_fb_cmd2 *r = data; 3344f453ba04SDave Airlie struct drm_framebuffer *fb; 3345f453ba04SDave Airlie 3346fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3347fb3b06c8SDave Airlie return -EINVAL; 3348fb3b06c8SDave Airlie 33499a6f5130SChris Wilson fb = internal_framebuffer_create(dev, r, file_priv); 3350c394c2b0SMatt Roper if (IS_ERR(fb)) 33514b096ac1SDaniel Vetter return PTR_ERR(fb); 3352f453ba04SDave Airlie 33539a6f5130SChris Wilson /* Transfer ownership to the filp for reaping on close */ 33549a6f5130SChris Wilson 33559a6f5130SChris Wilson DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 33569a6f5130SChris Wilson mutex_lock(&file_priv->fbs_lock); 33579a6f5130SChris Wilson r->fb_id = fb->base.id; 33589a6f5130SChris Wilson list_add(&fb->filp_head, &file_priv->fbs); 33599a6f5130SChris Wilson mutex_unlock(&file_priv->fbs_lock); 33609a6f5130SChris Wilson 3361c394c2b0SMatt Roper return 0; 3362f453ba04SDave Airlie } 3363f453ba04SDave Airlie 3364f453ba04SDave Airlie /** 3365f453ba04SDave Airlie * drm_mode_rmfb - remove an FB from the configuration 3366065a50edSDaniel Vetter * @dev: drm device for the ioctl 3367065a50edSDaniel Vetter * @data: data pointer for the ioctl 3368065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3369f453ba04SDave Airlie * 3370f453ba04SDave Airlie * Remove the FB specified by the user. 3371f453ba04SDave Airlie * 3372f453ba04SDave Airlie * Called by the user via ioctl. 3373f453ba04SDave Airlie * 3374c8e32cc1SDaniel Vetter * Returns: 33751a498633SDaniel Vetter * Zero on success, negative errno on failure. 3376f453ba04SDave Airlie */ 3377f453ba04SDave Airlie int drm_mode_rmfb(struct drm_device *dev, 3378f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3379f453ba04SDave Airlie { 3380f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 3381f453ba04SDave Airlie struct drm_framebuffer *fbl = NULL; 3382f453ba04SDave Airlie uint32_t *id = data; 3383f453ba04SDave Airlie int found = 0; 3384f453ba04SDave Airlie 3385fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3386fb3b06c8SDave Airlie return -EINVAL; 3387fb3b06c8SDave Airlie 33884b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 33892b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 33902b677e8cSDaniel Vetter fb = __drm_framebuffer_lookup(dev, *id); 33912b677e8cSDaniel Vetter if (!fb) 33922b677e8cSDaniel Vetter goto fail_lookup; 33932b677e8cSDaniel Vetter 3394f453ba04SDave Airlie list_for_each_entry(fbl, &file_priv->fbs, filp_head) 3395f453ba04SDave Airlie if (fb == fbl) 3396f453ba04SDave Airlie found = 1; 33972b677e8cSDaniel Vetter if (!found) 33982b677e8cSDaniel Vetter goto fail_lookup; 33992b677e8cSDaniel Vetter 34002b677e8cSDaniel Vetter /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ 34012b677e8cSDaniel Vetter __drm_framebuffer_unregister(dev, fb); 3402f453ba04SDave Airlie 34034b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 34042b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 34054b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 3406f453ba04SDave Airlie 34074b096ac1SDaniel Vetter drm_framebuffer_remove(fb); 34084b096ac1SDaniel Vetter 34092b677e8cSDaniel Vetter return 0; 34102b677e8cSDaniel Vetter 34112b677e8cSDaniel Vetter fail_lookup: 34122b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 34132b677e8cSDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 34142b677e8cSDaniel Vetter 341537c4e705SVille Syrjälä return -ENOENT; 3416f453ba04SDave Airlie } 3417f453ba04SDave Airlie 3418f453ba04SDave Airlie /** 3419f453ba04SDave Airlie * drm_mode_getfb - get FB info 3420065a50edSDaniel Vetter * @dev: drm device for the ioctl 3421065a50edSDaniel Vetter * @data: data pointer for the ioctl 3422065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3423f453ba04SDave Airlie * 3424f453ba04SDave Airlie * Lookup the FB given its ID and return info about it. 3425f453ba04SDave Airlie * 3426f453ba04SDave Airlie * Called by the user via ioctl. 3427f453ba04SDave Airlie * 3428c8e32cc1SDaniel Vetter * Returns: 34291a498633SDaniel Vetter * Zero on success, negative errno on failure. 3430f453ba04SDave Airlie */ 3431f453ba04SDave Airlie int drm_mode_getfb(struct drm_device *dev, 3432f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3433f453ba04SDave Airlie { 3434f453ba04SDave Airlie struct drm_mode_fb_cmd *r = data; 3435f453ba04SDave Airlie struct drm_framebuffer *fb; 343658c0dca1SDaniel Vetter int ret; 3437f453ba04SDave Airlie 3438fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3439fb3b06c8SDave Airlie return -EINVAL; 3440fb3b06c8SDave Airlie 3441786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, r->fb_id); 344258c0dca1SDaniel Vetter if (!fb) 344337c4e705SVille Syrjälä return -ENOENT; 3444f453ba04SDave Airlie 3445f453ba04SDave Airlie r->height = fb->height; 3446f453ba04SDave Airlie r->width = fb->width; 3447f453ba04SDave Airlie r->depth = fb->depth; 3448f453ba04SDave Airlie r->bpp = fb->bits_per_pixel; 344901f2c773SVille Syrjälä r->pitch = fb->pitches[0]; 3450101b96f3SDavid Herrmann if (fb->funcs->create_handle) { 345109f308f7SThomas Hellstrom if (file_priv->is_master || capable(CAP_SYS_ADMIN) || 345243683057SThomas Hellstrom drm_is_control_client(file_priv)) { 3453101b96f3SDavid Herrmann ret = fb->funcs->create_handle(fb, file_priv, 3454101b96f3SDavid Herrmann &r->handle); 3455101b96f3SDavid Herrmann } else { 3456101b96f3SDavid Herrmann /* GET_FB() is an unprivileged ioctl so we must not 3457101b96f3SDavid Herrmann * return a buffer-handle to non-master processes! For 3458101b96f3SDavid Herrmann * backwards-compatibility reasons, we cannot make 3459101b96f3SDavid Herrmann * GET_FB() privileged, so just return an invalid handle 3460101b96f3SDavid Herrmann * for non-masters. */ 3461101b96f3SDavid Herrmann r->handle = 0; 3462101b96f3SDavid Herrmann ret = 0; 3463101b96f3SDavid Herrmann } 3464101b96f3SDavid Herrmann } else { 3465af26ef3bSDaniel Vetter ret = -ENODEV; 3466101b96f3SDavid Herrmann } 3467f453ba04SDave Airlie 346858c0dca1SDaniel Vetter drm_framebuffer_unreference(fb); 346958c0dca1SDaniel Vetter 3470f453ba04SDave Airlie return ret; 3471f453ba04SDave Airlie } 3472f453ba04SDave Airlie 3473c8e32cc1SDaniel Vetter /** 3474c8e32cc1SDaniel Vetter * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB 3475c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3476c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3477c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3478c8e32cc1SDaniel Vetter * 3479c8e32cc1SDaniel Vetter * Lookup the FB and flush out the damaged area supplied by userspace as a clip 3480c8e32cc1SDaniel Vetter * rectangle list. Generic userspace which does frontbuffer rendering must call 3481c8e32cc1SDaniel Vetter * this ioctl to flush out the changes on manual-update display outputs, e.g. 3482c8e32cc1SDaniel Vetter * usb display-link, mipi manual update panels or edp panel self refresh modes. 3483c8e32cc1SDaniel Vetter * 3484c8e32cc1SDaniel Vetter * Modesetting drivers which always update the frontbuffer do not need to 3485c8e32cc1SDaniel Vetter * implement the corresponding ->dirty framebuffer callback. 3486c8e32cc1SDaniel Vetter * 3487c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3488c8e32cc1SDaniel Vetter * 3489c8e32cc1SDaniel Vetter * Returns: 34901a498633SDaniel Vetter * Zero on success, negative errno on failure. 3491c8e32cc1SDaniel Vetter */ 3492884840aaSJakob Bornecrantz int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 3493884840aaSJakob Bornecrantz void *data, struct drm_file *file_priv) 3494884840aaSJakob Bornecrantz { 3495884840aaSJakob Bornecrantz struct drm_clip_rect __user *clips_ptr; 3496884840aaSJakob Bornecrantz struct drm_clip_rect *clips = NULL; 3497884840aaSJakob Bornecrantz struct drm_mode_fb_dirty_cmd *r = data; 3498884840aaSJakob Bornecrantz struct drm_framebuffer *fb; 3499884840aaSJakob Bornecrantz unsigned flags; 3500884840aaSJakob Bornecrantz int num_clips; 35014a1b0714SLaurent Pinchart int ret; 3502884840aaSJakob Bornecrantz 3503fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3504fb3b06c8SDave Airlie return -EINVAL; 3505fb3b06c8SDave Airlie 3506786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, r->fb_id); 35074ccf097fSDaniel Vetter if (!fb) 350837c4e705SVille Syrjälä return -ENOENT; 3509884840aaSJakob Bornecrantz 3510884840aaSJakob Bornecrantz num_clips = r->num_clips; 351181f6c7f8SVille Syrjälä clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; 3512884840aaSJakob Bornecrantz 3513884840aaSJakob Bornecrantz if (!num_clips != !clips_ptr) { 3514884840aaSJakob Bornecrantz ret = -EINVAL; 3515884840aaSJakob Bornecrantz goto out_err1; 3516884840aaSJakob Bornecrantz } 3517884840aaSJakob Bornecrantz 3518884840aaSJakob Bornecrantz flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; 3519884840aaSJakob Bornecrantz 3520884840aaSJakob Bornecrantz /* If userspace annotates copy, clips must come in pairs */ 3521884840aaSJakob Bornecrantz if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { 3522884840aaSJakob Bornecrantz ret = -EINVAL; 3523884840aaSJakob Bornecrantz goto out_err1; 3524884840aaSJakob Bornecrantz } 3525884840aaSJakob Bornecrantz 3526884840aaSJakob Bornecrantz if (num_clips && clips_ptr) { 3527a5cd3351SXi Wang if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { 3528a5cd3351SXi Wang ret = -EINVAL; 3529a5cd3351SXi Wang goto out_err1; 3530a5cd3351SXi Wang } 3531bd3f0ff9SThierry Reding clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); 3532884840aaSJakob Bornecrantz if (!clips) { 3533884840aaSJakob Bornecrantz ret = -ENOMEM; 3534884840aaSJakob Bornecrantz goto out_err1; 3535884840aaSJakob Bornecrantz } 3536884840aaSJakob Bornecrantz 3537884840aaSJakob Bornecrantz ret = copy_from_user(clips, clips_ptr, 3538884840aaSJakob Bornecrantz num_clips * sizeof(*clips)); 3539e902a358SDan Carpenter if (ret) { 3540e902a358SDan Carpenter ret = -EFAULT; 3541884840aaSJakob Bornecrantz goto out_err2; 3542884840aaSJakob Bornecrantz } 3543e902a358SDan Carpenter } 3544884840aaSJakob Bornecrantz 3545884840aaSJakob Bornecrantz if (fb->funcs->dirty) { 354602b00162SThomas Hellstrom ret = fb->funcs->dirty(fb, file_priv, flags, r->color, 354702b00162SThomas Hellstrom clips, num_clips); 3548884840aaSJakob Bornecrantz } else { 3549884840aaSJakob Bornecrantz ret = -ENOSYS; 3550884840aaSJakob Bornecrantz } 3551884840aaSJakob Bornecrantz 3552884840aaSJakob Bornecrantz out_err2: 3553884840aaSJakob Bornecrantz kfree(clips); 3554884840aaSJakob Bornecrantz out_err1: 35554ccf097fSDaniel Vetter drm_framebuffer_unreference(fb); 35564ccf097fSDaniel Vetter 3557884840aaSJakob Bornecrantz return ret; 3558884840aaSJakob Bornecrantz } 3559884840aaSJakob Bornecrantz 3560884840aaSJakob Bornecrantz 3561f453ba04SDave Airlie /** 3562f453ba04SDave Airlie * drm_fb_release - remove and free the FBs on this file 3563065a50edSDaniel Vetter * @priv: drm file for the ioctl 3564f453ba04SDave Airlie * 3565f453ba04SDave Airlie * Destroy all the FBs associated with @filp. 3566f453ba04SDave Airlie * 3567f453ba04SDave Airlie * Called by the user via ioctl. 3568f453ba04SDave Airlie * 3569c8e32cc1SDaniel Vetter * Returns: 35701a498633SDaniel Vetter * Zero on success, negative errno on failure. 3571f453ba04SDave Airlie */ 3572ea39f835SKristian Høgsberg void drm_fb_release(struct drm_file *priv) 3573f453ba04SDave Airlie { 3574f453ba04SDave Airlie struct drm_device *dev = priv->minor->dev; 3575f453ba04SDave Airlie struct drm_framebuffer *fb, *tfb; 3576f453ba04SDave Airlie 35771b116297SDaniel Vetter /* 35781b116297SDaniel Vetter * When the file gets released that means no one else can access the fb 3579e2db726bSMartin Peres * list any more, so no need to grab fpriv->fbs_lock. And we need to 35801b116297SDaniel Vetter * avoid upsetting lockdep since the universal cursor code adds a 35811b116297SDaniel Vetter * framebuffer while holding mutex locks. 35821b116297SDaniel Vetter * 35831b116297SDaniel Vetter * Note that a real deadlock between fpriv->fbs_lock and the modeset 35841b116297SDaniel Vetter * locks is impossible here since no one else but this function can get 35851b116297SDaniel Vetter * at it any more. 35861b116297SDaniel Vetter */ 3587f453ba04SDave Airlie list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { 35882b677e8cSDaniel Vetter 35892b677e8cSDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 35902b677e8cSDaniel Vetter /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ 35912b677e8cSDaniel Vetter __drm_framebuffer_unregister(dev, fb); 35922b677e8cSDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 35932b677e8cSDaniel Vetter 35944b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 35952b677e8cSDaniel Vetter 35962b677e8cSDaniel Vetter /* This will also drop the fpriv->fbs reference. */ 3597f7eff60eSRob Clark drm_framebuffer_remove(fb); 3598f453ba04SDave Airlie } 3599f453ba04SDave Airlie } 3600f453ba04SDave Airlie 3601c8e32cc1SDaniel Vetter /** 3602c8e32cc1SDaniel Vetter * drm_property_create - create a new property type 3603c8e32cc1SDaniel Vetter * @dev: drm device 3604c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3605c8e32cc1SDaniel Vetter * @name: name of the property 3606c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3607c8e32cc1SDaniel Vetter * 3608c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3609c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3610c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3611c8e32cc1SDaniel Vetter * 36123b5b9932SDamien Lespiau * Note that the DRM core keeps a per-device list of properties and that, if 36133b5b9932SDamien Lespiau * drm_mode_config_cleanup() is called, it will destroy all properties created 36143b5b9932SDamien Lespiau * by the driver. 36153b5b9932SDamien Lespiau * 3616c8e32cc1SDaniel Vetter * Returns: 3617c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3618c8e32cc1SDaniel Vetter */ 3619f453ba04SDave Airlie struct drm_property *drm_property_create(struct drm_device *dev, int flags, 3620f453ba04SDave Airlie const char *name, int num_values) 3621f453ba04SDave Airlie { 3622f453ba04SDave Airlie struct drm_property *property = NULL; 36236bfc56aaSVille Syrjälä int ret; 3624f453ba04SDave Airlie 3625f453ba04SDave Airlie property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); 3626f453ba04SDave Airlie if (!property) 3627f453ba04SDave Airlie return NULL; 3628f453ba04SDave Airlie 362998f75de4SRob Clark property->dev = dev; 363098f75de4SRob Clark 3631f453ba04SDave Airlie if (num_values) { 3632bd3f0ff9SThierry Reding property->values = kcalloc(num_values, sizeof(uint64_t), 3633bd3f0ff9SThierry Reding GFP_KERNEL); 3634f453ba04SDave Airlie if (!property->values) 3635f453ba04SDave Airlie goto fail; 3636f453ba04SDave Airlie } 3637f453ba04SDave Airlie 36386bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); 36396bfc56aaSVille Syrjälä if (ret) 36406bfc56aaSVille Syrjälä goto fail; 36416bfc56aaSVille Syrjälä 3642f453ba04SDave Airlie property->flags = flags; 3643f453ba04SDave Airlie property->num_values = num_values; 36443758b341SDaniel Vetter INIT_LIST_HEAD(&property->enum_list); 3645f453ba04SDave Airlie 3646471dd2efSVinson Lee if (name) { 3647f453ba04SDave Airlie strncpy(property->name, name, DRM_PROP_NAME_LEN); 3648471dd2efSVinson Lee property->name[DRM_PROP_NAME_LEN-1] = '\0'; 3649471dd2efSVinson Lee } 3650f453ba04SDave Airlie 3651f453ba04SDave Airlie list_add_tail(&property->head, &dev->mode_config.property_list); 36525ea22f24SRob Clark 36535ea22f24SRob Clark WARN_ON(!drm_property_type_valid(property)); 36545ea22f24SRob Clark 3655f453ba04SDave Airlie return property; 3656f453ba04SDave Airlie fail: 36576bfc56aaSVille Syrjälä kfree(property->values); 3658f453ba04SDave Airlie kfree(property); 3659f453ba04SDave Airlie return NULL; 3660f453ba04SDave Airlie } 3661f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_create); 3662f453ba04SDave Airlie 3663c8e32cc1SDaniel Vetter /** 36642aa9d2bcSThierry Reding * drm_property_create_enum - create a new enumeration property type 3665c8e32cc1SDaniel Vetter * @dev: drm device 3666c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3667c8e32cc1SDaniel Vetter * @name: name of the property 3668c8e32cc1SDaniel Vetter * @props: enumeration lists with property values 3669c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3670c8e32cc1SDaniel Vetter * 3671c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3672c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3673c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3674c8e32cc1SDaniel Vetter * 3675c8e32cc1SDaniel Vetter * Userspace is only allowed to set one of the predefined values for enumeration 3676c8e32cc1SDaniel Vetter * properties. 3677c8e32cc1SDaniel Vetter * 3678c8e32cc1SDaniel Vetter * Returns: 3679c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3680c8e32cc1SDaniel Vetter */ 36814a67d391SSascha Hauer struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 36824a67d391SSascha Hauer const char *name, 36834a67d391SSascha Hauer const struct drm_prop_enum_list *props, 36844a67d391SSascha Hauer int num_values) 36854a67d391SSascha Hauer { 36864a67d391SSascha Hauer struct drm_property *property; 36874a67d391SSascha Hauer int i, ret; 36884a67d391SSascha Hauer 36894a67d391SSascha Hauer flags |= DRM_MODE_PROP_ENUM; 36904a67d391SSascha Hauer 36914a67d391SSascha Hauer property = drm_property_create(dev, flags, name, num_values); 36924a67d391SSascha Hauer if (!property) 36934a67d391SSascha Hauer return NULL; 36944a67d391SSascha Hauer 36954a67d391SSascha Hauer for (i = 0; i < num_values; i++) { 36964a67d391SSascha Hauer ret = drm_property_add_enum(property, i, 36974a67d391SSascha Hauer props[i].type, 36984a67d391SSascha Hauer props[i].name); 36994a67d391SSascha Hauer if (ret) { 37004a67d391SSascha Hauer drm_property_destroy(dev, property); 37014a67d391SSascha Hauer return NULL; 37024a67d391SSascha Hauer } 37034a67d391SSascha Hauer } 37044a67d391SSascha Hauer 37054a67d391SSascha Hauer return property; 37064a67d391SSascha Hauer } 37074a67d391SSascha Hauer EXPORT_SYMBOL(drm_property_create_enum); 37084a67d391SSascha Hauer 3709c8e32cc1SDaniel Vetter /** 37102aa9d2bcSThierry Reding * drm_property_create_bitmask - create a new bitmask property type 3711c8e32cc1SDaniel Vetter * @dev: drm device 3712c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3713c8e32cc1SDaniel Vetter * @name: name of the property 3714c8e32cc1SDaniel Vetter * @props: enumeration lists with property bitflags 3715295ee853SDaniel Vetter * @num_props: size of the @props array 3716295ee853SDaniel Vetter * @supported_bits: bitmask of all supported enumeration values 3717c8e32cc1SDaniel Vetter * 3718295ee853SDaniel Vetter * This creates a new bitmask drm property which can then be attached to a drm 3719c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3720c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3721c8e32cc1SDaniel Vetter * 3722c8e32cc1SDaniel Vetter * Compared to plain enumeration properties userspace is allowed to set any 3723c8e32cc1SDaniel Vetter * or'ed together combination of the predefined property bitflag values 3724c8e32cc1SDaniel Vetter * 3725c8e32cc1SDaniel Vetter * Returns: 3726c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3727c8e32cc1SDaniel Vetter */ 372849e27545SRob Clark struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 372949e27545SRob Clark int flags, const char *name, 373049e27545SRob Clark const struct drm_prop_enum_list *props, 37317689ffb3SVille Syrjälä int num_props, 37327689ffb3SVille Syrjälä uint64_t supported_bits) 373349e27545SRob Clark { 373449e27545SRob Clark struct drm_property *property; 37357689ffb3SVille Syrjälä int i, ret, index = 0; 37367689ffb3SVille Syrjälä int num_values = hweight64(supported_bits); 373749e27545SRob Clark 373849e27545SRob Clark flags |= DRM_MODE_PROP_BITMASK; 373949e27545SRob Clark 374049e27545SRob Clark property = drm_property_create(dev, flags, name, num_values); 374149e27545SRob Clark if (!property) 374249e27545SRob Clark return NULL; 37437689ffb3SVille Syrjälä for (i = 0; i < num_props; i++) { 37447689ffb3SVille Syrjälä if (!(supported_bits & (1ULL << props[i].type))) 37457689ffb3SVille Syrjälä continue; 374649e27545SRob Clark 37477689ffb3SVille Syrjälä if (WARN_ON(index >= num_values)) { 37487689ffb3SVille Syrjälä drm_property_destroy(dev, property); 37497689ffb3SVille Syrjälä return NULL; 37507689ffb3SVille Syrjälä } 37517689ffb3SVille Syrjälä 37527689ffb3SVille Syrjälä ret = drm_property_add_enum(property, index++, 375349e27545SRob Clark props[i].type, 375449e27545SRob Clark props[i].name); 375549e27545SRob Clark if (ret) { 375649e27545SRob Clark drm_property_destroy(dev, property); 375749e27545SRob Clark return NULL; 375849e27545SRob Clark } 375949e27545SRob Clark } 376049e27545SRob Clark 376149e27545SRob Clark return property; 376249e27545SRob Clark } 376349e27545SRob Clark EXPORT_SYMBOL(drm_property_create_bitmask); 376449e27545SRob Clark 3765ebc44cf3SRob Clark static struct drm_property *property_create_range(struct drm_device *dev, 3766ebc44cf3SRob Clark int flags, const char *name, 3767ebc44cf3SRob Clark uint64_t min, uint64_t max) 3768ebc44cf3SRob Clark { 3769ebc44cf3SRob Clark struct drm_property *property; 3770ebc44cf3SRob Clark 3771ebc44cf3SRob Clark property = drm_property_create(dev, flags, name, 2); 3772ebc44cf3SRob Clark if (!property) 3773ebc44cf3SRob Clark return NULL; 3774ebc44cf3SRob Clark 3775ebc44cf3SRob Clark property->values[0] = min; 3776ebc44cf3SRob Clark property->values[1] = max; 3777ebc44cf3SRob Clark 3778ebc44cf3SRob Clark return property; 3779ebc44cf3SRob Clark } 3780ebc44cf3SRob Clark 3781c8e32cc1SDaniel Vetter /** 3782960cd9d4SDaniel Vetter * drm_property_create_range - create a new unsigned ranged property type 3783c8e32cc1SDaniel Vetter * @dev: drm device 3784c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3785c8e32cc1SDaniel Vetter * @name: name of the property 3786c8e32cc1SDaniel Vetter * @min: minimum value of the property 3787c8e32cc1SDaniel Vetter * @max: maximum value of the property 3788c8e32cc1SDaniel Vetter * 3789c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3790c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3791c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3792c8e32cc1SDaniel Vetter * 3793960cd9d4SDaniel Vetter * Userspace is allowed to set any unsigned integer value in the (min, max) 3794960cd9d4SDaniel Vetter * range inclusive. 3795c8e32cc1SDaniel Vetter * 3796c8e32cc1SDaniel Vetter * Returns: 3797c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3798c8e32cc1SDaniel Vetter */ 3799d9bc3c02SSascha Hauer struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 3800d9bc3c02SSascha Hauer const char *name, 3801d9bc3c02SSascha Hauer uint64_t min, uint64_t max) 3802d9bc3c02SSascha Hauer { 3803ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, 3804ebc44cf3SRob Clark name, min, max); 3805d9bc3c02SSascha Hauer } 3806d9bc3c02SSascha Hauer EXPORT_SYMBOL(drm_property_create_range); 3807d9bc3c02SSascha Hauer 3808960cd9d4SDaniel Vetter /** 3809960cd9d4SDaniel Vetter * drm_property_create_signed_range - create a new signed ranged property type 3810960cd9d4SDaniel Vetter * @dev: drm device 3811960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3812960cd9d4SDaniel Vetter * @name: name of the property 3813960cd9d4SDaniel Vetter * @min: minimum value of the property 3814960cd9d4SDaniel Vetter * @max: maximum value of the property 3815960cd9d4SDaniel Vetter * 3816960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3817960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3818960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3819960cd9d4SDaniel Vetter * 3820960cd9d4SDaniel Vetter * Userspace is allowed to set any signed integer value in the (min, max) 3821960cd9d4SDaniel Vetter * range inclusive. 3822960cd9d4SDaniel Vetter * 3823960cd9d4SDaniel Vetter * Returns: 3824960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3825960cd9d4SDaniel Vetter */ 3826ebc44cf3SRob Clark struct drm_property *drm_property_create_signed_range(struct drm_device *dev, 3827ebc44cf3SRob Clark int flags, const char *name, 3828ebc44cf3SRob Clark int64_t min, int64_t max) 3829ebc44cf3SRob Clark { 3830ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, 3831ebc44cf3SRob Clark name, I642U64(min), I642U64(max)); 3832ebc44cf3SRob Clark } 3833ebc44cf3SRob Clark EXPORT_SYMBOL(drm_property_create_signed_range); 3834ebc44cf3SRob Clark 3835960cd9d4SDaniel Vetter /** 3836960cd9d4SDaniel Vetter * drm_property_create_object - create a new object property type 3837960cd9d4SDaniel Vetter * @dev: drm device 3838960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3839960cd9d4SDaniel Vetter * @name: name of the property 3840960cd9d4SDaniel Vetter * @type: object type from DRM_MODE_OBJECT_* defines 3841960cd9d4SDaniel Vetter * 3842960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3843960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3844960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3845960cd9d4SDaniel Vetter * 3846960cd9d4SDaniel Vetter * Userspace is only allowed to set this to any property value of the given 3847960cd9d4SDaniel Vetter * @type. Only useful for atomic properties, which is enforced. 3848960cd9d4SDaniel Vetter * 3849960cd9d4SDaniel Vetter * Returns: 3850960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3851960cd9d4SDaniel Vetter */ 385298f75de4SRob Clark struct drm_property *drm_property_create_object(struct drm_device *dev, 385398f75de4SRob Clark int flags, const char *name, uint32_t type) 385498f75de4SRob Clark { 385598f75de4SRob Clark struct drm_property *property; 385698f75de4SRob Clark 385798f75de4SRob Clark flags |= DRM_MODE_PROP_OBJECT; 385898f75de4SRob Clark 3859960cd9d4SDaniel Vetter if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) 3860960cd9d4SDaniel Vetter return NULL; 3861960cd9d4SDaniel Vetter 386298f75de4SRob Clark property = drm_property_create(dev, flags, name, 1); 386398f75de4SRob Clark if (!property) 386498f75de4SRob Clark return NULL; 386598f75de4SRob Clark 386698f75de4SRob Clark property->values[0] = type; 386798f75de4SRob Clark 386898f75de4SRob Clark return property; 386998f75de4SRob Clark } 387098f75de4SRob Clark EXPORT_SYMBOL(drm_property_create_object); 387198f75de4SRob Clark 3872c8e32cc1SDaniel Vetter /** 3873960cd9d4SDaniel Vetter * drm_property_create_bool - create a new boolean property type 3874960cd9d4SDaniel Vetter * @dev: drm device 3875960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3876960cd9d4SDaniel Vetter * @name: name of the property 3877960cd9d4SDaniel Vetter * 3878960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3879960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3880960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3881960cd9d4SDaniel Vetter * 3882960cd9d4SDaniel Vetter * This is implemented as a ranged property with only {0, 1} as valid values. 3883960cd9d4SDaniel Vetter * 3884960cd9d4SDaniel Vetter * Returns: 3885960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3886960cd9d4SDaniel Vetter */ 3887960cd9d4SDaniel Vetter struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, 3888960cd9d4SDaniel Vetter const char *name) 3889960cd9d4SDaniel Vetter { 3890960cd9d4SDaniel Vetter return drm_property_create_range(dev, flags, name, 0, 1); 3891960cd9d4SDaniel Vetter } 3892960cd9d4SDaniel Vetter EXPORT_SYMBOL(drm_property_create_bool); 3893960cd9d4SDaniel Vetter 3894960cd9d4SDaniel Vetter /** 3895c8e32cc1SDaniel Vetter * drm_property_add_enum - add a possible value to an enumeration property 3896c8e32cc1SDaniel Vetter * @property: enumeration property to change 3897c8e32cc1SDaniel Vetter * @index: index of the new enumeration 3898c8e32cc1SDaniel Vetter * @value: value of the new enumeration 3899c8e32cc1SDaniel Vetter * @name: symbolic name of the new enumeration 3900c8e32cc1SDaniel Vetter * 3901c8e32cc1SDaniel Vetter * This functions adds enumerations to a property. 3902c8e32cc1SDaniel Vetter * 3903c8e32cc1SDaniel Vetter * It's use is deprecated, drivers should use one of the more specific helpers 3904c8e32cc1SDaniel Vetter * to directly create the property with all enumerations already attached. 3905c8e32cc1SDaniel Vetter * 3906c8e32cc1SDaniel Vetter * Returns: 3907c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3908c8e32cc1SDaniel Vetter */ 3909f453ba04SDave Airlie int drm_property_add_enum(struct drm_property *property, int index, 3910f453ba04SDave Airlie uint64_t value, const char *name) 3911f453ba04SDave Airlie { 3912f453ba04SDave Airlie struct drm_property_enum *prop_enum; 3913f453ba04SDave Airlie 39145ea22f24SRob Clark if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 39155ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) 391649e27545SRob Clark return -EINVAL; 391749e27545SRob Clark 391849e27545SRob Clark /* 391949e27545SRob Clark * Bitmask enum properties have the additional constraint of values 392049e27545SRob Clark * from 0 to 63 392149e27545SRob Clark */ 39225ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && 39235ea22f24SRob Clark (value > 63)) 3924f453ba04SDave Airlie return -EINVAL; 3925f453ba04SDave Airlie 39263758b341SDaniel Vetter if (!list_empty(&property->enum_list)) { 39273758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 3928f453ba04SDave Airlie if (prop_enum->value == value) { 3929f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 3930f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 3931f453ba04SDave Airlie return 0; 3932f453ba04SDave Airlie } 3933f453ba04SDave Airlie } 3934f453ba04SDave Airlie } 3935f453ba04SDave Airlie 3936f453ba04SDave Airlie prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); 3937f453ba04SDave Airlie if (!prop_enum) 3938f453ba04SDave Airlie return -ENOMEM; 3939f453ba04SDave Airlie 3940f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 3941f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 3942f453ba04SDave Airlie prop_enum->value = value; 3943f453ba04SDave Airlie 3944f453ba04SDave Airlie property->values[index] = value; 39453758b341SDaniel Vetter list_add_tail(&prop_enum->head, &property->enum_list); 3946f453ba04SDave Airlie return 0; 3947f453ba04SDave Airlie } 3948f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_add_enum); 3949f453ba04SDave Airlie 3950c8e32cc1SDaniel Vetter /** 3951c8e32cc1SDaniel Vetter * drm_property_destroy - destroy a drm property 3952c8e32cc1SDaniel Vetter * @dev: drm device 3953c8e32cc1SDaniel Vetter * @property: property to destry 3954c8e32cc1SDaniel Vetter * 3955c8e32cc1SDaniel Vetter * This function frees a property including any attached resources like 3956c8e32cc1SDaniel Vetter * enumeration values. 3957c8e32cc1SDaniel Vetter */ 3958f453ba04SDave Airlie void drm_property_destroy(struct drm_device *dev, struct drm_property *property) 3959f453ba04SDave Airlie { 3960f453ba04SDave Airlie struct drm_property_enum *prop_enum, *pt; 3961f453ba04SDave Airlie 39623758b341SDaniel Vetter list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { 3963f453ba04SDave Airlie list_del(&prop_enum->head); 3964f453ba04SDave Airlie kfree(prop_enum); 3965f453ba04SDave Airlie } 3966f453ba04SDave Airlie 3967f453ba04SDave Airlie if (property->num_values) 3968f453ba04SDave Airlie kfree(property->values); 3969f453ba04SDave Airlie drm_mode_object_put(dev, &property->base); 3970f453ba04SDave Airlie list_del(&property->head); 3971f453ba04SDave Airlie kfree(property); 3972f453ba04SDave Airlie } 3973f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_destroy); 3974f453ba04SDave Airlie 3975c8e32cc1SDaniel Vetter /** 3976c8e32cc1SDaniel Vetter * drm_object_attach_property - attach a property to a modeset object 3977c8e32cc1SDaniel Vetter * @obj: drm modeset object 3978c8e32cc1SDaniel Vetter * @property: property to attach 3979c8e32cc1SDaniel Vetter * @init_val: initial value of the property 3980c8e32cc1SDaniel Vetter * 3981c8e32cc1SDaniel Vetter * This attaches the given property to the modeset object with the given initial 3982c8e32cc1SDaniel Vetter * value. Currently this function cannot fail since the properties are stored in 3983c8e32cc1SDaniel Vetter * a statically sized array. 3984c8e32cc1SDaniel Vetter */ 3985c543188aSPaulo Zanoni void drm_object_attach_property(struct drm_mode_object *obj, 3986c543188aSPaulo Zanoni struct drm_property *property, 3987c543188aSPaulo Zanoni uint64_t init_val) 3988c543188aSPaulo Zanoni { 39897f88a9beSPaulo Zanoni int count = obj->properties->count; 3990c543188aSPaulo Zanoni 39917f88a9beSPaulo Zanoni if (count == DRM_OBJECT_MAX_PROPERTY) { 39927f88a9beSPaulo Zanoni WARN(1, "Failed to attach object property (type: 0x%x). Please " 39937f88a9beSPaulo Zanoni "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " 39947f88a9beSPaulo Zanoni "you see this message on the same object type.\n", 39957f88a9beSPaulo Zanoni obj->type); 3996c543188aSPaulo Zanoni return; 3997c543188aSPaulo Zanoni } 3998c543188aSPaulo Zanoni 3999b17cd757SRob Clark obj->properties->properties[count] = property; 40007f88a9beSPaulo Zanoni obj->properties->values[count] = init_val; 40017f88a9beSPaulo Zanoni obj->properties->count++; 400288a48e29SRob Clark if (property->flags & DRM_MODE_PROP_ATOMIC) 400388a48e29SRob Clark obj->properties->atomic_count++; 4004c543188aSPaulo Zanoni } 4005c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_attach_property); 4006c543188aSPaulo Zanoni 4007c8e32cc1SDaniel Vetter /** 4008c8e32cc1SDaniel Vetter * drm_object_property_set_value - set the value of a property 4009c8e32cc1SDaniel Vetter * @obj: drm mode object to set property value for 4010c8e32cc1SDaniel Vetter * @property: property to set 4011c8e32cc1SDaniel Vetter * @val: value the property should be set to 4012c8e32cc1SDaniel Vetter * 4013c8e32cc1SDaniel Vetter * This functions sets a given property on a given object. This function only 4014c8e32cc1SDaniel Vetter * changes the software state of the property, it does not call into the 4015c8e32cc1SDaniel Vetter * driver's ->set_property callback. 4016c8e32cc1SDaniel Vetter * 4017c8e32cc1SDaniel Vetter * Returns: 4018c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 4019c8e32cc1SDaniel Vetter */ 4020c543188aSPaulo Zanoni int drm_object_property_set_value(struct drm_mode_object *obj, 4021c543188aSPaulo Zanoni struct drm_property *property, uint64_t val) 4022c543188aSPaulo Zanoni { 4023c543188aSPaulo Zanoni int i; 4024c543188aSPaulo Zanoni 40257f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 4026b17cd757SRob Clark if (obj->properties->properties[i] == property) { 4027c543188aSPaulo Zanoni obj->properties->values[i] = val; 4028c543188aSPaulo Zanoni return 0; 4029c543188aSPaulo Zanoni } 4030c543188aSPaulo Zanoni } 4031c543188aSPaulo Zanoni 4032c543188aSPaulo Zanoni return -EINVAL; 4033c543188aSPaulo Zanoni } 4034c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_set_value); 4035c543188aSPaulo Zanoni 4036c8e32cc1SDaniel Vetter /** 4037c8e32cc1SDaniel Vetter * drm_object_property_get_value - retrieve the value of a property 4038c8e32cc1SDaniel Vetter * @obj: drm mode object to get property value from 4039c8e32cc1SDaniel Vetter * @property: property to retrieve 4040c8e32cc1SDaniel Vetter * @val: storage for the property value 4041c8e32cc1SDaniel Vetter * 4042c8e32cc1SDaniel Vetter * This function retrieves the softare state of the given property for the given 4043c8e32cc1SDaniel Vetter * property. Since there is no driver callback to retrieve the current property 4044c8e32cc1SDaniel Vetter * value this might be out of sync with the hardware, depending upon the driver 4045c8e32cc1SDaniel Vetter * and property. 4046c8e32cc1SDaniel Vetter * 4047c8e32cc1SDaniel Vetter * Returns: 4048c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 4049c8e32cc1SDaniel Vetter */ 4050c543188aSPaulo Zanoni int drm_object_property_get_value(struct drm_mode_object *obj, 4051c543188aSPaulo Zanoni struct drm_property *property, uint64_t *val) 4052c543188aSPaulo Zanoni { 4053c543188aSPaulo Zanoni int i; 4054c543188aSPaulo Zanoni 405588a48e29SRob Clark /* read-only properties bypass atomic mechanism and still store 405688a48e29SRob Clark * their value in obj->properties->values[].. mostly to avoid 405788a48e29SRob Clark * having to deal w/ EDID and similar props in atomic paths: 405888a48e29SRob Clark */ 405988a48e29SRob Clark if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && 406088a48e29SRob Clark !(property->flags & DRM_MODE_PROP_IMMUTABLE)) 406188a48e29SRob Clark return drm_atomic_get_property(obj, property, val); 406288a48e29SRob Clark 40637f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 4064b17cd757SRob Clark if (obj->properties->properties[i] == property) { 4065c543188aSPaulo Zanoni *val = obj->properties->values[i]; 4066c543188aSPaulo Zanoni return 0; 4067c543188aSPaulo Zanoni } 4068c543188aSPaulo Zanoni } 4069c543188aSPaulo Zanoni 4070c543188aSPaulo Zanoni return -EINVAL; 4071c543188aSPaulo Zanoni } 4072c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_get_value); 4073c543188aSPaulo Zanoni 4074c8e32cc1SDaniel Vetter /** 40751a498633SDaniel Vetter * drm_mode_getproperty_ioctl - get the property metadata 4076c8e32cc1SDaniel Vetter * @dev: DRM device 4077c8e32cc1SDaniel Vetter * @data: ioctl data 4078c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4079c8e32cc1SDaniel Vetter * 40801a498633SDaniel Vetter * This function retrieves the metadata for a given property, like the different 40811a498633SDaniel Vetter * possible values for an enum property or the limits for a range property. 40821a498633SDaniel Vetter * 40831a498633SDaniel Vetter * Blob properties are special 4084c8e32cc1SDaniel Vetter * 4085c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4086c8e32cc1SDaniel Vetter * 4087c8e32cc1SDaniel Vetter * Returns: 40881a498633SDaniel Vetter * Zero on success, negative errno on failure. 4089c8e32cc1SDaniel Vetter */ 4090f453ba04SDave Airlie int drm_mode_getproperty_ioctl(struct drm_device *dev, 4091f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4092f453ba04SDave Airlie { 4093f453ba04SDave Airlie struct drm_mode_get_property *out_resp = data; 4094f453ba04SDave Airlie struct drm_property *property; 4095f453ba04SDave Airlie int enum_count = 0; 4096f453ba04SDave Airlie int value_count = 0; 4097f453ba04SDave Airlie int ret = 0, i; 4098f453ba04SDave Airlie int copied; 4099f453ba04SDave Airlie struct drm_property_enum *prop_enum; 4100f453ba04SDave Airlie struct drm_mode_property_enum __user *enum_ptr; 4101f453ba04SDave Airlie uint64_t __user *values_ptr; 4102f453ba04SDave Airlie 4103fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4104fb3b06c8SDave Airlie return -EINVAL; 4105fb3b06c8SDave Airlie 410684849903SDaniel Vetter drm_modeset_lock_all(dev); 4107a2b34e22SRob Clark property = drm_property_find(dev, out_resp->prop_id); 4108a2b34e22SRob Clark if (!property) { 4109f27657f2SVille Syrjälä ret = -ENOENT; 4110f453ba04SDave Airlie goto done; 4111f453ba04SDave Airlie } 4112f453ba04SDave Airlie 41135ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 41145ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 41153758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) 4116f453ba04SDave Airlie enum_count++; 4117f453ba04SDave Airlie } 4118f453ba04SDave Airlie 4119f453ba04SDave Airlie value_count = property->num_values; 4120f453ba04SDave Airlie 4121f453ba04SDave Airlie strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); 4122f453ba04SDave Airlie out_resp->name[DRM_PROP_NAME_LEN-1] = 0; 4123f453ba04SDave Airlie out_resp->flags = property->flags; 4124f453ba04SDave Airlie 4125f453ba04SDave Airlie if ((out_resp->count_values >= value_count) && value_count) { 412681f6c7f8SVille Syrjälä values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; 4127f453ba04SDave Airlie for (i = 0; i < value_count; i++) { 4128f453ba04SDave Airlie if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { 4129f453ba04SDave Airlie ret = -EFAULT; 4130f453ba04SDave Airlie goto done; 4131f453ba04SDave Airlie } 4132f453ba04SDave Airlie } 4133f453ba04SDave Airlie } 4134f453ba04SDave Airlie out_resp->count_values = value_count; 4135f453ba04SDave Airlie 41365ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 41375ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 4138f453ba04SDave Airlie if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { 4139f453ba04SDave Airlie copied = 0; 414081f6c7f8SVille Syrjälä enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; 41413758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 4142f453ba04SDave Airlie 4143f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { 4144f453ba04SDave Airlie ret = -EFAULT; 4145f453ba04SDave Airlie goto done; 4146f453ba04SDave Airlie } 4147f453ba04SDave Airlie 4148f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].name, 4149f453ba04SDave Airlie &prop_enum->name, DRM_PROP_NAME_LEN)) { 4150f453ba04SDave Airlie ret = -EFAULT; 4151f453ba04SDave Airlie goto done; 4152f453ba04SDave Airlie } 4153f453ba04SDave Airlie copied++; 4154f453ba04SDave Airlie } 4155f453ba04SDave Airlie } 4156f453ba04SDave Airlie out_resp->count_enum_blobs = enum_count; 4157f453ba04SDave Airlie } 4158f453ba04SDave Airlie 41593758b341SDaniel Vetter /* 41603758b341SDaniel Vetter * NOTE: The idea seems to have been to use this to read all the blob 41613758b341SDaniel Vetter * property values. But nothing ever added them to the corresponding 41623758b341SDaniel Vetter * list, userspace always used the special-purpose get_blob ioctl to 41633758b341SDaniel Vetter * read the value for a blob property. It also doesn't make a lot of 41643758b341SDaniel Vetter * sense to return values here when everything else is just metadata for 41653758b341SDaniel Vetter * the property itself. 41663758b341SDaniel Vetter */ 41673758b341SDaniel Vetter if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 41683758b341SDaniel Vetter out_resp->count_enum_blobs = 0; 4169f453ba04SDave Airlie done: 417084849903SDaniel Vetter drm_modeset_unlock_all(dev); 4171f453ba04SDave Airlie return ret; 4172f453ba04SDave Airlie } 4173f453ba04SDave Airlie 417499531d9bSDaniel Stone /** 417599531d9bSDaniel Stone * drm_property_create_blob - Create new blob property 417699531d9bSDaniel Stone * 417799531d9bSDaniel Stone * Creates a new blob property for a specified DRM device, optionally 417899531d9bSDaniel Stone * copying data. 417999531d9bSDaniel Stone * 418099531d9bSDaniel Stone * @dev: DRM device to create property for 418199531d9bSDaniel Stone * @length: Length to allocate for blob data 418299531d9bSDaniel Stone * @data: If specified, copies data into blob 418310e8cb7eSDaniel Stone * 418410e8cb7eSDaniel Stone * Returns: 418510e8cb7eSDaniel Stone * New blob property with a single reference on success, or an ERR_PTR 418610e8cb7eSDaniel Stone * value on failure. 418799531d9bSDaniel Stone */ 41886bcacf51SDaniel Stone struct drm_property_blob * 4189ecbbe59bSThierry Reding drm_property_create_blob(struct drm_device *dev, size_t length, 419012e6cecdSThierry Reding const void *data) 4191f453ba04SDave Airlie { 4192f453ba04SDave Airlie struct drm_property_blob *blob; 41936bfc56aaSVille Syrjälä int ret; 4194f453ba04SDave Airlie 419599531d9bSDaniel Stone if (!length) 419610e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 4197f453ba04SDave Airlie 4198f453ba04SDave Airlie blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); 4199f453ba04SDave Airlie if (!blob) 420010e8cb7eSDaniel Stone return ERR_PTR(-ENOMEM); 4201f453ba04SDave Airlie 4202e2f5d2eaSDaniel Stone /* This must be explicitly initialised, so we can safely call list_del 4203e2f5d2eaSDaniel Stone * on it in the removal handler, even if it isn't in a file list. */ 4204e2f5d2eaSDaniel Stone INIT_LIST_HEAD(&blob->head_file); 4205f453ba04SDave Airlie blob->length = length; 42066bcacf51SDaniel Stone blob->dev = dev; 4207f453ba04SDave Airlie 420899531d9bSDaniel Stone if (data) 4209f453ba04SDave Airlie memcpy(blob->data, data, length); 4210f453ba04SDave Airlie 42118fb6e7a5SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 42128fb6e7a5SDaniel Stone 42138fb6e7a5SDaniel Stone ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); 42148fb6e7a5SDaniel Stone if (ret) { 42158fb6e7a5SDaniel Stone kfree(blob); 42168fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 421710e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 42188fb6e7a5SDaniel Stone } 42198fb6e7a5SDaniel Stone 42206bcacf51SDaniel Stone kref_init(&blob->refcount); 42216bcacf51SDaniel Stone 4222e2f5d2eaSDaniel Stone list_add_tail(&blob->head_global, 4223e2f5d2eaSDaniel Stone &dev->mode_config.property_blob_list); 42248fb6e7a5SDaniel Stone 42258fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 42268fb6e7a5SDaniel Stone 4227f453ba04SDave Airlie return blob; 4228f453ba04SDave Airlie } 42296bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_create_blob); 4230f453ba04SDave Airlie 42316bcacf51SDaniel Stone /** 42326bcacf51SDaniel Stone * drm_property_free_blob - Blob property destructor 42336bcacf51SDaniel Stone * 42346bcacf51SDaniel Stone * Internal free function for blob properties; must not be used directly. 42356bcacf51SDaniel Stone * 4236f102c16eSDaniel Stone * @kref: Reference 42376bcacf51SDaniel Stone */ 42386bcacf51SDaniel Stone static void drm_property_free_blob(struct kref *kref) 4239f453ba04SDave Airlie { 42406bcacf51SDaniel Stone struct drm_property_blob *blob = 42416bcacf51SDaniel Stone container_of(kref, struct drm_property_blob, refcount); 42426bcacf51SDaniel Stone 42436bcacf51SDaniel Stone WARN_ON(!mutex_is_locked(&blob->dev->mode_config.blob_lock)); 42446bcacf51SDaniel Stone 4245e2f5d2eaSDaniel Stone list_del(&blob->head_global); 4246e2f5d2eaSDaniel Stone list_del(&blob->head_file); 42476bcacf51SDaniel Stone drm_mode_object_put(blob->dev, &blob->base); 42488fb6e7a5SDaniel Stone 4249f453ba04SDave Airlie kfree(blob); 4250f453ba04SDave Airlie } 4251f453ba04SDave Airlie 4252c8e32cc1SDaniel Vetter /** 42536bcacf51SDaniel Stone * drm_property_unreference_blob - Unreference a blob property 42546bcacf51SDaniel Stone * 42556bcacf51SDaniel Stone * Drop a reference on a blob property. May free the object. 42566bcacf51SDaniel Stone * 4257f102c16eSDaniel Stone * @blob: Pointer to blob property 42586bcacf51SDaniel Stone */ 42596bcacf51SDaniel Stone void drm_property_unreference_blob(struct drm_property_blob *blob) 42606bcacf51SDaniel Stone { 42616bcacf51SDaniel Stone struct drm_device *dev; 42626bcacf51SDaniel Stone 42636bcacf51SDaniel Stone if (!blob) 42646bcacf51SDaniel Stone return; 42656bcacf51SDaniel Stone 42666bcacf51SDaniel Stone dev = blob->dev; 42676bcacf51SDaniel Stone 42686bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 42696bcacf51SDaniel Stone 42706bcacf51SDaniel Stone if (kref_put_mutex(&blob->refcount, drm_property_free_blob, 42716bcacf51SDaniel Stone &dev->mode_config.blob_lock)) 42726bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 42736bcacf51SDaniel Stone else 42746bcacf51SDaniel Stone might_lock(&dev->mode_config.blob_lock); 42756bcacf51SDaniel Stone 42766bcacf51SDaniel Stone } 42776bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_unreference_blob); 42786bcacf51SDaniel Stone 42796bcacf51SDaniel Stone /** 42806bcacf51SDaniel Stone * drm_property_unreference_blob_locked - Unreference a blob property with blob_lock held 42816bcacf51SDaniel Stone * 42826bcacf51SDaniel Stone * Drop a reference on a blob property. May free the object. This must be 42836bcacf51SDaniel Stone * called with blob_lock held. 42846bcacf51SDaniel Stone * 4285f102c16eSDaniel Stone * @blob: Pointer to blob property 42866bcacf51SDaniel Stone */ 42876bcacf51SDaniel Stone static void drm_property_unreference_blob_locked(struct drm_property_blob *blob) 42886bcacf51SDaniel Stone { 42896bcacf51SDaniel Stone if (!blob) 42906bcacf51SDaniel Stone return; 42916bcacf51SDaniel Stone 42926bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 42936bcacf51SDaniel Stone 42946bcacf51SDaniel Stone kref_put(&blob->refcount, drm_property_free_blob); 42956bcacf51SDaniel Stone } 42966bcacf51SDaniel Stone 42976bcacf51SDaniel Stone /** 4298e2f5d2eaSDaniel Stone * drm_property_destroy_user_blobs - destroy all blobs created by this client 4299e2f5d2eaSDaniel Stone * @dev: DRM device 4300e2f5d2eaSDaniel Stone * @file_priv: destroy all blobs owned by this file handle 4301e2f5d2eaSDaniel Stone */ 4302e2f5d2eaSDaniel Stone void drm_property_destroy_user_blobs(struct drm_device *dev, 4303e2f5d2eaSDaniel Stone struct drm_file *file_priv) 4304e2f5d2eaSDaniel Stone { 4305e2f5d2eaSDaniel Stone struct drm_property_blob *blob, *bt; 4306e2f5d2eaSDaniel Stone 4307e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4308e2f5d2eaSDaniel Stone 4309e2f5d2eaSDaniel Stone list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { 4310e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4311e2f5d2eaSDaniel Stone drm_property_unreference_blob_locked(blob); 4312e2f5d2eaSDaniel Stone } 4313e2f5d2eaSDaniel Stone 4314e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4315e2f5d2eaSDaniel Stone } 4316e2f5d2eaSDaniel Stone 4317e2f5d2eaSDaniel Stone /** 43186bcacf51SDaniel Stone * drm_property_reference_blob - Take a reference on an existing property 43196bcacf51SDaniel Stone * 43206bcacf51SDaniel Stone * Take a new reference on an existing blob property. 43216bcacf51SDaniel Stone * 4322f102c16eSDaniel Stone * @blob: Pointer to blob property 43236bcacf51SDaniel Stone */ 43246bcacf51SDaniel Stone struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) 43256bcacf51SDaniel Stone { 43266bcacf51SDaniel Stone DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); 43276bcacf51SDaniel Stone kref_get(&blob->refcount); 43286bcacf51SDaniel Stone return blob; 43296bcacf51SDaniel Stone } 43306bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_reference_blob); 43316bcacf51SDaniel Stone 43326bcacf51SDaniel Stone /* 43336bcacf51SDaniel Stone * Like drm_property_lookup_blob, but does not return an additional reference. 43346bcacf51SDaniel Stone * Must be called with blob_lock held. 43356bcacf51SDaniel Stone */ 43366bcacf51SDaniel Stone static struct drm_property_blob *__drm_property_lookup_blob(struct drm_device *dev, 43376bcacf51SDaniel Stone uint32_t id) 43386bcacf51SDaniel Stone { 43396bcacf51SDaniel Stone struct drm_mode_object *obj = NULL; 43406bcacf51SDaniel Stone struct drm_property_blob *blob; 43416bcacf51SDaniel Stone 43426bcacf51SDaniel Stone WARN_ON(!mutex_is_locked(&dev->mode_config.blob_lock)); 43436bcacf51SDaniel Stone 43446bcacf51SDaniel Stone mutex_lock(&dev->mode_config.idr_mutex); 43456bcacf51SDaniel Stone obj = idr_find(&dev->mode_config.crtc_idr, id); 43466bcacf51SDaniel Stone if (!obj || (obj->type != DRM_MODE_OBJECT_BLOB) || (obj->id != id)) 43476bcacf51SDaniel Stone blob = NULL; 43486bcacf51SDaniel Stone else 43496bcacf51SDaniel Stone blob = obj_to_blob(obj); 43506bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.idr_mutex); 43516bcacf51SDaniel Stone 4352f453ba04SDave Airlie return blob; 4353f453ba04SDave Airlie } 4354f453ba04SDave Airlie 43556bcacf51SDaniel Stone /** 43566bcacf51SDaniel Stone * drm_property_lookup_blob - look up a blob property and take a reference 43576bcacf51SDaniel Stone * @dev: drm device 43586bcacf51SDaniel Stone * @id: id of the blob property 43596bcacf51SDaniel Stone * 43606bcacf51SDaniel Stone * If successful, this takes an additional reference to the blob property. 43616bcacf51SDaniel Stone * callers need to make sure to eventually unreference the returned property 43626bcacf51SDaniel Stone * again, using @drm_property_unreference_blob. 43636bcacf51SDaniel Stone */ 43646bcacf51SDaniel Stone struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, 43656bcacf51SDaniel Stone uint32_t id) 4366f453ba04SDave Airlie { 43676bcacf51SDaniel Stone struct drm_property_blob *blob; 43686bcacf51SDaniel Stone 43696bcacf51SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 43706bcacf51SDaniel Stone blob = __drm_property_lookup_blob(dev, id); 43716bcacf51SDaniel Stone if (blob) { 43726bcacf51SDaniel Stone if (!kref_get_unless_zero(&blob->refcount)) 43736bcacf51SDaniel Stone blob = NULL; 43746bcacf51SDaniel Stone } 43756bcacf51SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 43766bcacf51SDaniel Stone 43776bcacf51SDaniel Stone return blob; 43786bcacf51SDaniel Stone } 43796bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_lookup_blob); 43806bcacf51SDaniel Stone 43816bcacf51SDaniel Stone /** 4382d2ed3436SDaniel Stone * drm_property_replace_global_blob - atomically replace existing blob property 4383d2ed3436SDaniel Stone * @dev: drm device 4384d2ed3436SDaniel Stone * @replace: location of blob property pointer to be replaced 4385d2ed3436SDaniel Stone * @length: length of data for new blob, or 0 for no data 4386d2ed3436SDaniel Stone * @data: content for new blob, or NULL for no data 4387d2ed3436SDaniel Stone * @obj_holds_id: optional object for property holding blob ID 4388d2ed3436SDaniel Stone * @prop_holds_id: optional property holding blob ID 4389d2ed3436SDaniel Stone * @return 0 on success or error on failure 4390d2ed3436SDaniel Stone * 4391d2ed3436SDaniel Stone * This function will atomically replace a global property in the blob list, 4392d2ed3436SDaniel Stone * optionally updating a property which holds the ID of that property. It is 4393d2ed3436SDaniel Stone * guaranteed to be atomic: no caller will be allowed to see intermediate 4394d2ed3436SDaniel Stone * results, and either the entire operation will succeed and clean up the 4395d2ed3436SDaniel Stone * previous property, or it will fail and the state will be unchanged. 4396d2ed3436SDaniel Stone * 4397d2ed3436SDaniel Stone * If length is 0 or data is NULL, no new blob will be created, and the holding 4398d2ed3436SDaniel Stone * property, if specified, will be set to 0. 4399d2ed3436SDaniel Stone * 4400d2ed3436SDaniel Stone * Access to the replace pointer is assumed to be protected by the caller, e.g. 4401d2ed3436SDaniel Stone * by holding the relevant modesetting object lock for its parent. 4402d2ed3436SDaniel Stone * 4403d2ed3436SDaniel Stone * For example, a drm_connector has a 'PATH' property, which contains the ID 4404d2ed3436SDaniel Stone * of a blob property with the value of the MST path information. Calling this 4405d2ed3436SDaniel Stone * function with replace pointing to the connector's path_blob_ptr, length and 4406d2ed3436SDaniel Stone * data set for the new path information, obj_holds_id set to the connector's 4407d2ed3436SDaniel Stone * base object, and prop_holds_id set to the path property name, will perform 4408d2ed3436SDaniel Stone * a completely atomic update. The access to path_blob_ptr is protected by the 4409d2ed3436SDaniel Stone * caller holding a lock on the connector. 4410d2ed3436SDaniel Stone */ 4411d2ed3436SDaniel Stone static int drm_property_replace_global_blob(struct drm_device *dev, 4412d2ed3436SDaniel Stone struct drm_property_blob **replace, 4413d2ed3436SDaniel Stone size_t length, 4414d2ed3436SDaniel Stone const void *data, 4415d2ed3436SDaniel Stone struct drm_mode_object *obj_holds_id, 4416d2ed3436SDaniel Stone struct drm_property *prop_holds_id) 4417d2ed3436SDaniel Stone { 4418d2ed3436SDaniel Stone struct drm_property_blob *new_blob = NULL; 4419d2ed3436SDaniel Stone struct drm_property_blob *old_blob = NULL; 4420d2ed3436SDaniel Stone int ret; 4421d2ed3436SDaniel Stone 4422d2ed3436SDaniel Stone WARN_ON(replace == NULL); 4423d2ed3436SDaniel Stone 4424d2ed3436SDaniel Stone old_blob = *replace; 4425d2ed3436SDaniel Stone 4426d2ed3436SDaniel Stone if (length && data) { 4427d2ed3436SDaniel Stone new_blob = drm_property_create_blob(dev, length, data); 442810e8cb7eSDaniel Stone if (IS_ERR(new_blob)) 442910e8cb7eSDaniel Stone return PTR_ERR(new_blob); 4430d2ed3436SDaniel Stone } 4431d2ed3436SDaniel Stone 4432d2ed3436SDaniel Stone /* This does not need to be synchronised with blob_lock, as the 4433d2ed3436SDaniel Stone * get_properties ioctl locks all modesetting objects, and 4434d2ed3436SDaniel Stone * obj_holds_id must be locked before calling here, so we cannot 4435d2ed3436SDaniel Stone * have its value out of sync with the list membership modified 4436d2ed3436SDaniel Stone * below under blob_lock. */ 4437d2ed3436SDaniel Stone if (obj_holds_id) { 4438d2ed3436SDaniel Stone ret = drm_object_property_set_value(obj_holds_id, 4439d2ed3436SDaniel Stone prop_holds_id, 4440d2ed3436SDaniel Stone new_blob ? 4441d2ed3436SDaniel Stone new_blob->base.id : 0); 4442d2ed3436SDaniel Stone if (ret != 0) 4443d2ed3436SDaniel Stone goto err_created; 4444d2ed3436SDaniel Stone } 4445d2ed3436SDaniel Stone 4446d2ed3436SDaniel Stone if (old_blob) 44476bcacf51SDaniel Stone drm_property_unreference_blob(old_blob); 4448d2ed3436SDaniel Stone 4449d2ed3436SDaniel Stone *replace = new_blob; 4450d2ed3436SDaniel Stone 4451d2ed3436SDaniel Stone return 0; 4452d2ed3436SDaniel Stone 4453d2ed3436SDaniel Stone err_created: 44546bcacf51SDaniel Stone drm_property_unreference_blob(new_blob); 4455d2ed3436SDaniel Stone return ret; 4456f453ba04SDave Airlie } 4457f453ba04SDave Airlie 4458c8e32cc1SDaniel Vetter /** 4459c8e32cc1SDaniel Vetter * drm_mode_getblob_ioctl - get the contents of a blob property value 4460c8e32cc1SDaniel Vetter * @dev: DRM device 4461c8e32cc1SDaniel Vetter * @data: ioctl data 4462c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4463c8e32cc1SDaniel Vetter * 4464c8e32cc1SDaniel Vetter * This function retrieves the contents of a blob property. The value stored in 4465c8e32cc1SDaniel Vetter * an object's blob property is just a normal modeset object id. 4466c8e32cc1SDaniel Vetter * 4467c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4468c8e32cc1SDaniel Vetter * 4469c8e32cc1SDaniel Vetter * Returns: 44701a498633SDaniel Vetter * Zero on success, negative errno on failure. 4471c8e32cc1SDaniel Vetter */ 4472f453ba04SDave Airlie int drm_mode_getblob_ioctl(struct drm_device *dev, 4473f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4474f453ba04SDave Airlie { 4475f453ba04SDave Airlie struct drm_mode_get_blob *out_resp = data; 4476f453ba04SDave Airlie struct drm_property_blob *blob; 4477f453ba04SDave Airlie int ret = 0; 447881f6c7f8SVille Syrjälä void __user *blob_ptr; 4479f453ba04SDave Airlie 4480fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4481fb3b06c8SDave Airlie return -EINVAL; 4482fb3b06c8SDave Airlie 448384849903SDaniel Vetter drm_modeset_lock_all(dev); 44848fb6e7a5SDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 44856bcacf51SDaniel Stone blob = __drm_property_lookup_blob(dev, out_resp->blob_id); 4486a2b34e22SRob Clark if (!blob) { 4487f27657f2SVille Syrjälä ret = -ENOENT; 4488f453ba04SDave Airlie goto done; 4489f453ba04SDave Airlie } 4490f453ba04SDave Airlie 4491f453ba04SDave Airlie if (out_resp->length == blob->length) { 449281f6c7f8SVille Syrjälä blob_ptr = (void __user *)(unsigned long)out_resp->data; 4493f453ba04SDave Airlie if (copy_to_user(blob_ptr, blob->data, blob->length)) { 4494f453ba04SDave Airlie ret = -EFAULT; 4495f453ba04SDave Airlie goto done; 4496f453ba04SDave Airlie } 4497f453ba04SDave Airlie } 4498f453ba04SDave Airlie out_resp->length = blob->length; 4499f453ba04SDave Airlie 4500f453ba04SDave Airlie done: 45018fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 450284849903SDaniel Vetter drm_modeset_unlock_all(dev); 4503f453ba04SDave Airlie return ret; 4504f453ba04SDave Airlie } 4505f453ba04SDave Airlie 4506cc7096fbSDave Airlie /** 4507e2f5d2eaSDaniel Stone * drm_mode_createblob_ioctl - create a new blob property 4508e2f5d2eaSDaniel Stone * @dev: DRM device 4509e2f5d2eaSDaniel Stone * @data: ioctl data 4510e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4511e2f5d2eaSDaniel Stone * 4512e2f5d2eaSDaniel Stone * This function creates a new blob property with user-defined values. In order 4513e2f5d2eaSDaniel Stone * to give us sensible validation and checking when creating, rather than at 4514e2f5d2eaSDaniel Stone * every potential use, we also require a type to be provided upfront. 4515e2f5d2eaSDaniel Stone * 4516e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4517e2f5d2eaSDaniel Stone * 4518e2f5d2eaSDaniel Stone * Returns: 4519e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4520e2f5d2eaSDaniel Stone */ 4521e2f5d2eaSDaniel Stone int drm_mode_createblob_ioctl(struct drm_device *dev, 4522e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4523e2f5d2eaSDaniel Stone { 4524e2f5d2eaSDaniel Stone struct drm_mode_create_blob *out_resp = data; 4525e2f5d2eaSDaniel Stone struct drm_property_blob *blob; 4526e2f5d2eaSDaniel Stone void __user *blob_ptr; 4527e2f5d2eaSDaniel Stone int ret = 0; 4528e2f5d2eaSDaniel Stone 4529e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4530e2f5d2eaSDaniel Stone return -EINVAL; 4531e2f5d2eaSDaniel Stone 4532e2f5d2eaSDaniel Stone blob = drm_property_create_blob(dev, out_resp->length, NULL); 4533e2f5d2eaSDaniel Stone if (IS_ERR(blob)) 4534e2f5d2eaSDaniel Stone return PTR_ERR(blob); 4535e2f5d2eaSDaniel Stone 4536e2f5d2eaSDaniel Stone blob_ptr = (void __user *)(unsigned long)out_resp->data; 4537e2f5d2eaSDaniel Stone if (copy_from_user(blob->data, blob_ptr, out_resp->length)) { 4538e2f5d2eaSDaniel Stone ret = -EFAULT; 4539e2f5d2eaSDaniel Stone goto out_blob; 4540e2f5d2eaSDaniel Stone } 4541e2f5d2eaSDaniel Stone 4542e2f5d2eaSDaniel Stone /* Dropping the lock between create_blob and our access here is safe 4543e2f5d2eaSDaniel Stone * as only the same file_priv can remove the blob; at this point, it is 4544e2f5d2eaSDaniel Stone * not associated with any file_priv. */ 4545e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4546e2f5d2eaSDaniel Stone out_resp->blob_id = blob->base.id; 4547e2f5d2eaSDaniel Stone list_add_tail(&file_priv->blobs, &blob->head_file); 4548e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4549e2f5d2eaSDaniel Stone 4550e2f5d2eaSDaniel Stone return 0; 4551e2f5d2eaSDaniel Stone 4552e2f5d2eaSDaniel Stone out_blob: 4553e2f5d2eaSDaniel Stone drm_property_unreference_blob(blob); 4554e2f5d2eaSDaniel Stone return ret; 4555e2f5d2eaSDaniel Stone } 4556e2f5d2eaSDaniel Stone 4557e2f5d2eaSDaniel Stone /** 4558e2f5d2eaSDaniel Stone * drm_mode_destroyblob_ioctl - destroy a user blob property 4559e2f5d2eaSDaniel Stone * @dev: DRM device 4560e2f5d2eaSDaniel Stone * @data: ioctl data 4561e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4562e2f5d2eaSDaniel Stone * 4563e2f5d2eaSDaniel Stone * Destroy an existing user-defined blob property. 4564e2f5d2eaSDaniel Stone * 4565e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4566e2f5d2eaSDaniel Stone * 4567e2f5d2eaSDaniel Stone * Returns: 4568e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4569e2f5d2eaSDaniel Stone */ 4570e2f5d2eaSDaniel Stone int drm_mode_destroyblob_ioctl(struct drm_device *dev, 4571e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4572e2f5d2eaSDaniel Stone { 4573e2f5d2eaSDaniel Stone struct drm_mode_destroy_blob *out_resp = data; 4574e2f5d2eaSDaniel Stone struct drm_property_blob *blob = NULL, *bt; 4575e2f5d2eaSDaniel Stone bool found = false; 4576e2f5d2eaSDaniel Stone int ret = 0; 4577e2f5d2eaSDaniel Stone 4578e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4579e2f5d2eaSDaniel Stone return -EINVAL; 4580e2f5d2eaSDaniel Stone 4581e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4582e2f5d2eaSDaniel Stone blob = __drm_property_lookup_blob(dev, out_resp->blob_id); 4583e2f5d2eaSDaniel Stone if (!blob) { 4584e2f5d2eaSDaniel Stone ret = -ENOENT; 4585e2f5d2eaSDaniel Stone goto err; 4586e2f5d2eaSDaniel Stone } 4587e2f5d2eaSDaniel Stone 4588e2f5d2eaSDaniel Stone /* Ensure the property was actually created by this user. */ 4589e2f5d2eaSDaniel Stone list_for_each_entry(bt, &file_priv->blobs, head_file) { 4590e2f5d2eaSDaniel Stone if (bt == blob) { 4591e2f5d2eaSDaniel Stone found = true; 4592e2f5d2eaSDaniel Stone break; 4593e2f5d2eaSDaniel Stone } 4594e2f5d2eaSDaniel Stone } 4595e2f5d2eaSDaniel Stone 4596e2f5d2eaSDaniel Stone if (!found) { 4597e2f5d2eaSDaniel Stone ret = -EPERM; 4598e2f5d2eaSDaniel Stone goto err; 4599e2f5d2eaSDaniel Stone } 4600e2f5d2eaSDaniel Stone 4601e2f5d2eaSDaniel Stone /* We must drop head_file here, because we may not be the last 4602e2f5d2eaSDaniel Stone * reference on the blob. */ 4603e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4604e2f5d2eaSDaniel Stone drm_property_unreference_blob_locked(blob); 4605e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4606e2f5d2eaSDaniel Stone 4607e2f5d2eaSDaniel Stone return 0; 4608e2f5d2eaSDaniel Stone 4609e2f5d2eaSDaniel Stone err: 4610e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4611e2f5d2eaSDaniel Stone return ret; 4612e2f5d2eaSDaniel Stone } 4613e2f5d2eaSDaniel Stone 4614e2f5d2eaSDaniel Stone /** 4615cc7096fbSDave Airlie * drm_mode_connector_set_path_property - set tile property on connector 4616cc7096fbSDave Airlie * @connector: connector to set property on. 4617d2ed3436SDaniel Stone * @path: path to use for property; must not be NULL. 4618cc7096fbSDave Airlie * 4619cc7096fbSDave Airlie * This creates a property to expose to userspace to specify a 4620cc7096fbSDave Airlie * connector path. This is mainly used for DisplayPort MST where 4621cc7096fbSDave Airlie * connectors have a topology and we want to allow userspace to give 4622cc7096fbSDave Airlie * them more meaningful names. 4623cc7096fbSDave Airlie * 4624cc7096fbSDave Airlie * Returns: 46251a498633SDaniel Vetter * Zero on success, negative errno on failure. 4626cc7096fbSDave Airlie */ 462743aba7ebSDave Airlie int drm_mode_connector_set_path_property(struct drm_connector *connector, 462812e6cecdSThierry Reding const char *path) 462943aba7ebSDave Airlie { 463043aba7ebSDave Airlie struct drm_device *dev = connector->dev; 4631ecbbe59bSThierry Reding int ret; 463243aba7ebSDave Airlie 4633d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4634d2ed3436SDaniel Stone &connector->path_blob_ptr, 4635d2ed3436SDaniel Stone strlen(path) + 1, 4636d2ed3436SDaniel Stone path, 4637d2ed3436SDaniel Stone &connector->base, 4638d2ed3436SDaniel Stone dev->mode_config.path_property); 463943aba7ebSDave Airlie return ret; 464043aba7ebSDave Airlie } 464143aba7ebSDave Airlie EXPORT_SYMBOL(drm_mode_connector_set_path_property); 464243aba7ebSDave Airlie 4643c8e32cc1SDaniel Vetter /** 46446f134d7bSDave Airlie * drm_mode_connector_set_tile_property - set tile property on connector 46456f134d7bSDave Airlie * @connector: connector to set property on. 46466f134d7bSDave Airlie * 46476f134d7bSDave Airlie * This looks up the tile information for a connector, and creates a 46486f134d7bSDave Airlie * property for userspace to parse if it exists. The property is of 46496f134d7bSDave Airlie * the form of 8 integers using ':' as a separator. 46506f134d7bSDave Airlie * 46516f134d7bSDave Airlie * Returns: 46526f134d7bSDave Airlie * Zero on success, errno on failure. 46536f134d7bSDave Airlie */ 46546f134d7bSDave Airlie int drm_mode_connector_set_tile_property(struct drm_connector *connector) 46556f134d7bSDave Airlie { 46566f134d7bSDave Airlie struct drm_device *dev = connector->dev; 46576f134d7bSDave Airlie char tile[256]; 4658d2ed3436SDaniel Stone int ret; 46596f134d7bSDave Airlie 46606f134d7bSDave Airlie if (!connector->has_tile) { 4661d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4662d2ed3436SDaniel Stone &connector->tile_blob_ptr, 4663d2ed3436SDaniel Stone 0, 4664d2ed3436SDaniel Stone NULL, 4665d2ed3436SDaniel Stone &connector->base, 4666d2ed3436SDaniel Stone dev->mode_config.tile_property); 46676f134d7bSDave Airlie return ret; 46686f134d7bSDave Airlie } 46696f134d7bSDave Airlie 46706f134d7bSDave Airlie snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", 46716f134d7bSDave Airlie connector->tile_group->id, connector->tile_is_single_monitor, 46726f134d7bSDave Airlie connector->num_h_tile, connector->num_v_tile, 46736f134d7bSDave Airlie connector->tile_h_loc, connector->tile_v_loc, 46746f134d7bSDave Airlie connector->tile_h_size, connector->tile_v_size); 46756f134d7bSDave Airlie 4676d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4677d2ed3436SDaniel Stone &connector->tile_blob_ptr, 4678d2ed3436SDaniel Stone strlen(tile) + 1, 4679d2ed3436SDaniel Stone tile, 4680d2ed3436SDaniel Stone &connector->base, 4681d2ed3436SDaniel Stone dev->mode_config.tile_property); 46826f134d7bSDave Airlie return ret; 46836f134d7bSDave Airlie } 46846f134d7bSDave Airlie EXPORT_SYMBOL(drm_mode_connector_set_tile_property); 46856f134d7bSDave Airlie 46866f134d7bSDave Airlie /** 4687c8e32cc1SDaniel Vetter * drm_mode_connector_update_edid_property - update the edid property of a connector 4688c8e32cc1SDaniel Vetter * @connector: drm connector 4689c8e32cc1SDaniel Vetter * @edid: new value of the edid property 4690c8e32cc1SDaniel Vetter * 4691c8e32cc1SDaniel Vetter * This function creates a new blob modeset object and assigns its id to the 4692c8e32cc1SDaniel Vetter * connector's edid property. 4693c8e32cc1SDaniel Vetter * 4694c8e32cc1SDaniel Vetter * Returns: 46951a498633SDaniel Vetter * Zero on success, negative errno on failure. 4696c8e32cc1SDaniel Vetter */ 4697f453ba04SDave Airlie int drm_mode_connector_update_edid_property(struct drm_connector *connector, 469812e6cecdSThierry Reding const struct edid *edid) 4699f453ba04SDave Airlie { 4700f453ba04SDave Airlie struct drm_device *dev = connector->dev; 4701d2ed3436SDaniel Stone size_t size = 0; 4702ecbbe59bSThierry Reding int ret; 4703f453ba04SDave Airlie 47044cf2b281SThomas Wood /* ignore requests to set edid when overridden */ 47054cf2b281SThomas Wood if (connector->override_edid) 47064cf2b281SThomas Wood return 0; 47074cf2b281SThomas Wood 4708d2ed3436SDaniel Stone if (edid) 4709d2ed3436SDaniel Stone size = EDID_LENGTH + (1 + edid->extensions); 4710f453ba04SDave Airlie 4711d2ed3436SDaniel Stone ret = drm_property_replace_global_blob(dev, 4712d2ed3436SDaniel Stone &connector->edid_blob_ptr, 4713d2ed3436SDaniel Stone size, 4714d2ed3436SDaniel Stone edid, 4715d2ed3436SDaniel Stone &connector->base, 4716d2ed3436SDaniel Stone dev->mode_config.edid_property); 4717f453ba04SDave Airlie return ret; 4718f453ba04SDave Airlie } 4719f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_connector_update_edid_property); 4720f453ba04SDave Airlie 47213843e71fSRob Clark /* Some properties could refer to dynamic refcnt'd objects, or things that 47223843e71fSRob Clark * need special locking to handle lifetime issues (ie. to ensure the prop 47233843e71fSRob Clark * value doesn't become invalid part way through the property update due to 47243843e71fSRob Clark * race). The value returned by reference via 'obj' should be passed back 47253843e71fSRob Clark * to drm_property_change_valid_put() after the property is set (and the 47263843e71fSRob Clark * object to which the property is attached has a chance to take it's own 47273843e71fSRob Clark * reference). 47283843e71fSRob Clark */ 4729d34f20d6SRob Clark bool drm_property_change_valid_get(struct drm_property *property, 47303843e71fSRob Clark uint64_t value, struct drm_mode_object **ref) 473126a34815SPaulo Zanoni { 47322ca651d1SThierry Reding int i; 47332ca651d1SThierry Reding 473426a34815SPaulo Zanoni if (property->flags & DRM_MODE_PROP_IMMUTABLE) 473526a34815SPaulo Zanoni return false; 47365ea22f24SRob Clark 47373843e71fSRob Clark *ref = NULL; 47383843e71fSRob Clark 47395ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { 474026a34815SPaulo Zanoni if (value < property->values[0] || value > property->values[1]) 474126a34815SPaulo Zanoni return false; 474226a34815SPaulo Zanoni return true; 4743ebc44cf3SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { 4744ebc44cf3SRob Clark int64_t svalue = U642I64(value); 47454dfd909fSThierry Reding 4746ebc44cf3SRob Clark if (svalue < U642I64(property->values[0]) || 4747ebc44cf3SRob Clark svalue > U642I64(property->values[1])) 4748ebc44cf3SRob Clark return false; 4749ebc44cf3SRob Clark return true; 47505ea22f24SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 4751592c20eeSVille Syrjälä uint64_t valid_mask = 0; 47524dfd909fSThierry Reding 475349e27545SRob Clark for (i = 0; i < property->num_values; i++) 475449e27545SRob Clark valid_mask |= (1ULL << property->values[i]); 475549e27545SRob Clark return !(value & ~valid_mask); 47565ea22f24SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { 47576bcacf51SDaniel Stone struct drm_property_blob *blob; 47586bcacf51SDaniel Stone 47596bcacf51SDaniel Stone if (value == 0) 4760c4a56750SVille Syrjälä return true; 47616bcacf51SDaniel Stone 47626bcacf51SDaniel Stone blob = drm_property_lookup_blob(property->dev, value); 47636bcacf51SDaniel Stone if (blob) { 47646bcacf51SDaniel Stone *ref = &blob->base; 47656bcacf51SDaniel Stone return true; 47666bcacf51SDaniel Stone } else { 47676bcacf51SDaniel Stone return false; 47686bcacf51SDaniel Stone } 476998f75de4SRob Clark } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { 477098f75de4SRob Clark /* a zero value for an object property translates to null: */ 477198f75de4SRob Clark if (value == 0) 477298f75de4SRob Clark return true; 47733843e71fSRob Clark 47743843e71fSRob Clark /* handle refcnt'd objects specially: */ 47753843e71fSRob Clark if (property->values[0] == DRM_MODE_OBJECT_FB) { 47763843e71fSRob Clark struct drm_framebuffer *fb; 47773843e71fSRob Clark fb = drm_framebuffer_lookup(property->dev, value); 47783843e71fSRob Clark if (fb) { 47793843e71fSRob Clark *ref = &fb->base; 47803843e71fSRob Clark return true; 47813843e71fSRob Clark } else { 47823843e71fSRob Clark return false; 47833843e71fSRob Clark } 47843843e71fSRob Clark } else { 47853843e71fSRob Clark return _object_find(property->dev, value, property->values[0]) != NULL; 47863843e71fSRob Clark } 47872ca651d1SThierry Reding } 47882ca651d1SThierry Reding 478926a34815SPaulo Zanoni for (i = 0; i < property->num_values; i++) 479026a34815SPaulo Zanoni if (property->values[i] == value) 479126a34815SPaulo Zanoni return true; 479226a34815SPaulo Zanoni return false; 479326a34815SPaulo Zanoni } 479426a34815SPaulo Zanoni 4795d34f20d6SRob Clark void drm_property_change_valid_put(struct drm_property *property, 47963843e71fSRob Clark struct drm_mode_object *ref) 47973843e71fSRob Clark { 47983843e71fSRob Clark if (!ref) 47993843e71fSRob Clark return; 48003843e71fSRob Clark 48013843e71fSRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { 48023843e71fSRob Clark if (property->values[0] == DRM_MODE_OBJECT_FB) 48033843e71fSRob Clark drm_framebuffer_unreference(obj_to_fb(ref)); 4804da9b2a38SDaniel Stone } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 4805da9b2a38SDaniel Stone drm_property_unreference_blob(obj_to_blob(ref)); 48063843e71fSRob Clark } 48073843e71fSRob Clark 4808c8e32cc1SDaniel Vetter /** 4809c8e32cc1SDaniel Vetter * drm_mode_connector_property_set_ioctl - set the current value of a connector property 4810c8e32cc1SDaniel Vetter * @dev: DRM device 4811c8e32cc1SDaniel Vetter * @data: ioctl data 4812c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4813c8e32cc1SDaniel Vetter * 4814c8e32cc1SDaniel Vetter * This function sets the current value for a connectors's property. It also 4815c8e32cc1SDaniel Vetter * calls into a driver's ->set_property callback to update the hardware state 4816c8e32cc1SDaniel Vetter * 4817c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4818c8e32cc1SDaniel Vetter * 4819c8e32cc1SDaniel Vetter * Returns: 48201a498633SDaniel Vetter * Zero on success, negative errno on failure. 4821c8e32cc1SDaniel Vetter */ 4822f453ba04SDave Airlie int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 4823f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4824f453ba04SDave Airlie { 48250057d8ddSPaulo Zanoni struct drm_mode_connector_set_property *conn_set_prop = data; 48260057d8ddSPaulo Zanoni struct drm_mode_obj_set_property obj_set_prop = { 48270057d8ddSPaulo Zanoni .value = conn_set_prop->value, 48280057d8ddSPaulo Zanoni .prop_id = conn_set_prop->prop_id, 48290057d8ddSPaulo Zanoni .obj_id = conn_set_prop->connector_id, 48300057d8ddSPaulo Zanoni .obj_type = DRM_MODE_OBJECT_CONNECTOR 48310057d8ddSPaulo Zanoni }; 4832f453ba04SDave Airlie 48330057d8ddSPaulo Zanoni /* It does all the locking and checking we need */ 48340057d8ddSPaulo Zanoni return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); 4835f453ba04SDave Airlie } 4836f453ba04SDave Airlie 4837c543188aSPaulo Zanoni static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, 4838c543188aSPaulo Zanoni struct drm_property *property, 4839c543188aSPaulo Zanoni uint64_t value) 4840c543188aSPaulo Zanoni { 4841c543188aSPaulo Zanoni int ret = -EINVAL; 4842c543188aSPaulo Zanoni struct drm_connector *connector = obj_to_connector(obj); 4843c543188aSPaulo Zanoni 4844c543188aSPaulo Zanoni /* Do DPMS ourselves */ 4845c543188aSPaulo Zanoni if (property == connector->dev->mode_config.dpms_property) { 4846c543188aSPaulo Zanoni if (connector->funcs->dpms) 4847c543188aSPaulo Zanoni (*connector->funcs->dpms)(connector, (int)value); 4848c543188aSPaulo Zanoni ret = 0; 4849c543188aSPaulo Zanoni } else if (connector->funcs->set_property) 4850c543188aSPaulo Zanoni ret = connector->funcs->set_property(connector, property, value); 4851c543188aSPaulo Zanoni 4852c543188aSPaulo Zanoni /* store the property value if successful */ 4853c543188aSPaulo Zanoni if (!ret) 485458495563SRob Clark drm_object_property_set_value(&connector->base, property, value); 4855c543188aSPaulo Zanoni return ret; 4856c543188aSPaulo Zanoni } 4857c543188aSPaulo Zanoni 4858bffd9de0SPaulo Zanoni static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, 4859bffd9de0SPaulo Zanoni struct drm_property *property, 4860bffd9de0SPaulo Zanoni uint64_t value) 4861bffd9de0SPaulo Zanoni { 4862bffd9de0SPaulo Zanoni int ret = -EINVAL; 4863bffd9de0SPaulo Zanoni struct drm_crtc *crtc = obj_to_crtc(obj); 4864bffd9de0SPaulo Zanoni 4865bffd9de0SPaulo Zanoni if (crtc->funcs->set_property) 4866bffd9de0SPaulo Zanoni ret = crtc->funcs->set_property(crtc, property, value); 4867bffd9de0SPaulo Zanoni if (!ret) 4868bffd9de0SPaulo Zanoni drm_object_property_set_value(obj, property, value); 4869bffd9de0SPaulo Zanoni 4870bffd9de0SPaulo Zanoni return ret; 4871bffd9de0SPaulo Zanoni } 4872bffd9de0SPaulo Zanoni 48733a5f87c2SThomas Wood /** 48743a5f87c2SThomas Wood * drm_mode_plane_set_obj_prop - set the value of a property 48753a5f87c2SThomas Wood * @plane: drm plane object to set property value for 48763a5f87c2SThomas Wood * @property: property to set 48773a5f87c2SThomas Wood * @value: value the property should be set to 48783a5f87c2SThomas Wood * 48793a5f87c2SThomas Wood * This functions sets a given property on a given plane object. This function 48803a5f87c2SThomas Wood * calls the driver's ->set_property callback and changes the software state of 48813a5f87c2SThomas Wood * the property if the callback succeeds. 48823a5f87c2SThomas Wood * 48833a5f87c2SThomas Wood * Returns: 48843a5f87c2SThomas Wood * Zero on success, error code on failure. 48853a5f87c2SThomas Wood */ 48863a5f87c2SThomas Wood int drm_mode_plane_set_obj_prop(struct drm_plane *plane, 48874d93914aSRob Clark struct drm_property *property, 48884d93914aSRob Clark uint64_t value) 48894d93914aSRob Clark { 48904d93914aSRob Clark int ret = -EINVAL; 48913a5f87c2SThomas Wood struct drm_mode_object *obj = &plane->base; 48924d93914aSRob Clark 48934d93914aSRob Clark if (plane->funcs->set_property) 48944d93914aSRob Clark ret = plane->funcs->set_property(plane, property, value); 48954d93914aSRob Clark if (!ret) 48964d93914aSRob Clark drm_object_property_set_value(obj, property, value); 48974d93914aSRob Clark 48984d93914aSRob Clark return ret; 48994d93914aSRob Clark } 49003a5f87c2SThomas Wood EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); 49014d93914aSRob Clark 4902c8e32cc1SDaniel Vetter /** 49031a498633SDaniel Vetter * drm_mode_obj_get_properties_ioctl - get the current value of a object's property 4904c8e32cc1SDaniel Vetter * @dev: DRM device 4905c8e32cc1SDaniel Vetter * @data: ioctl data 4906c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4907c8e32cc1SDaniel Vetter * 4908c8e32cc1SDaniel Vetter * This function retrieves the current value for an object's property. Compared 4909c8e32cc1SDaniel Vetter * to the connector specific ioctl this one is extended to also work on crtc and 4910c8e32cc1SDaniel Vetter * plane objects. 4911c8e32cc1SDaniel Vetter * 4912c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4913c8e32cc1SDaniel Vetter * 4914c8e32cc1SDaniel Vetter * Returns: 49151a498633SDaniel Vetter * Zero on success, negative errno on failure. 4916c8e32cc1SDaniel Vetter */ 4917c543188aSPaulo Zanoni int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 4918c543188aSPaulo Zanoni struct drm_file *file_priv) 4919c543188aSPaulo Zanoni { 4920c543188aSPaulo Zanoni struct drm_mode_obj_get_properties *arg = data; 4921c543188aSPaulo Zanoni struct drm_mode_object *obj; 4922c543188aSPaulo Zanoni int ret = 0; 4923c543188aSPaulo Zanoni 4924c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4925c543188aSPaulo Zanoni return -EINVAL; 4926c543188aSPaulo Zanoni 492784849903SDaniel Vetter drm_modeset_lock_all(dev); 4928c543188aSPaulo Zanoni 4929c543188aSPaulo Zanoni obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 4930c543188aSPaulo Zanoni if (!obj) { 4931f27657f2SVille Syrjälä ret = -ENOENT; 4932c543188aSPaulo Zanoni goto out; 4933c543188aSPaulo Zanoni } 4934c543188aSPaulo Zanoni if (!obj->properties) { 4935c543188aSPaulo Zanoni ret = -EINVAL; 4936c543188aSPaulo Zanoni goto out; 4937c543188aSPaulo Zanoni } 4938c543188aSPaulo Zanoni 493988a48e29SRob Clark ret = get_properties(obj, file_priv->atomic, 494095cbf110SRob Clark (uint32_t __user *)(unsigned long)(arg->props_ptr), 494195cbf110SRob Clark (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), 494295cbf110SRob Clark &arg->count_props); 4943c543188aSPaulo Zanoni 4944c543188aSPaulo Zanoni out: 494584849903SDaniel Vetter drm_modeset_unlock_all(dev); 4946c543188aSPaulo Zanoni return ret; 4947c543188aSPaulo Zanoni } 4948c543188aSPaulo Zanoni 4949c8e32cc1SDaniel Vetter /** 4950c8e32cc1SDaniel Vetter * drm_mode_obj_set_property_ioctl - set the current value of an object's property 4951c8e32cc1SDaniel Vetter * @dev: DRM device 4952c8e32cc1SDaniel Vetter * @data: ioctl data 4953c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4954c8e32cc1SDaniel Vetter * 4955c8e32cc1SDaniel Vetter * This function sets the current value for an object's property. It also calls 4956c8e32cc1SDaniel Vetter * into a driver's ->set_property callback to update the hardware state. 4957c8e32cc1SDaniel Vetter * Compared to the connector specific ioctl this one is extended to also work on 4958c8e32cc1SDaniel Vetter * crtc and plane objects. 4959c8e32cc1SDaniel Vetter * 4960c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4961c8e32cc1SDaniel Vetter * 4962c8e32cc1SDaniel Vetter * Returns: 49631a498633SDaniel Vetter * Zero on success, negative errno on failure. 4964c8e32cc1SDaniel Vetter */ 4965c543188aSPaulo Zanoni int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 4966c543188aSPaulo Zanoni struct drm_file *file_priv) 4967c543188aSPaulo Zanoni { 4968c543188aSPaulo Zanoni struct drm_mode_obj_set_property *arg = data; 4969c543188aSPaulo Zanoni struct drm_mode_object *arg_obj; 4970c543188aSPaulo Zanoni struct drm_mode_object *prop_obj; 4971c543188aSPaulo Zanoni struct drm_property *property; 49723843e71fSRob Clark int i, ret = -EINVAL; 49733843e71fSRob Clark struct drm_mode_object *ref; 4974c543188aSPaulo Zanoni 4975c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4976c543188aSPaulo Zanoni return -EINVAL; 4977c543188aSPaulo Zanoni 497884849903SDaniel Vetter drm_modeset_lock_all(dev); 4979c543188aSPaulo Zanoni 4980c543188aSPaulo Zanoni arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 4981f27657f2SVille Syrjälä if (!arg_obj) { 4982f27657f2SVille Syrjälä ret = -ENOENT; 4983c543188aSPaulo Zanoni goto out; 4984f27657f2SVille Syrjälä } 4985c543188aSPaulo Zanoni if (!arg_obj->properties) 4986c543188aSPaulo Zanoni goto out; 4987c543188aSPaulo Zanoni 49887f88a9beSPaulo Zanoni for (i = 0; i < arg_obj->properties->count; i++) 4989b17cd757SRob Clark if (arg_obj->properties->properties[i]->base.id == arg->prop_id) 4990c543188aSPaulo Zanoni break; 4991c543188aSPaulo Zanoni 49927f88a9beSPaulo Zanoni if (i == arg_obj->properties->count) 4993c543188aSPaulo Zanoni goto out; 4994c543188aSPaulo Zanoni 4995c543188aSPaulo Zanoni prop_obj = drm_mode_object_find(dev, arg->prop_id, 4996c543188aSPaulo Zanoni DRM_MODE_OBJECT_PROPERTY); 4997f27657f2SVille Syrjälä if (!prop_obj) { 4998f27657f2SVille Syrjälä ret = -ENOENT; 4999c543188aSPaulo Zanoni goto out; 5000f27657f2SVille Syrjälä } 5001c543188aSPaulo Zanoni property = obj_to_property(prop_obj); 5002c543188aSPaulo Zanoni 50033843e71fSRob Clark if (!drm_property_change_valid_get(property, arg->value, &ref)) 5004c543188aSPaulo Zanoni goto out; 5005c543188aSPaulo Zanoni 5006c543188aSPaulo Zanoni switch (arg_obj->type) { 5007c543188aSPaulo Zanoni case DRM_MODE_OBJECT_CONNECTOR: 5008c543188aSPaulo Zanoni ret = drm_mode_connector_set_obj_prop(arg_obj, property, 5009c543188aSPaulo Zanoni arg->value); 5010c543188aSPaulo Zanoni break; 5011bffd9de0SPaulo Zanoni case DRM_MODE_OBJECT_CRTC: 5012bffd9de0SPaulo Zanoni ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); 5013bffd9de0SPaulo Zanoni break; 50144d93914aSRob Clark case DRM_MODE_OBJECT_PLANE: 50153a5f87c2SThomas Wood ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), 50163a5f87c2SThomas Wood property, arg->value); 50174d93914aSRob Clark break; 5018c543188aSPaulo Zanoni } 5019c543188aSPaulo Zanoni 50203843e71fSRob Clark drm_property_change_valid_put(property, ref); 50213843e71fSRob Clark 5022c543188aSPaulo Zanoni out: 502384849903SDaniel Vetter drm_modeset_unlock_all(dev); 5024c543188aSPaulo Zanoni return ret; 5025c543188aSPaulo Zanoni } 5026c543188aSPaulo Zanoni 5027c8e32cc1SDaniel Vetter /** 5028c8e32cc1SDaniel Vetter * drm_mode_connector_attach_encoder - attach a connector to an encoder 5029c8e32cc1SDaniel Vetter * @connector: connector to attach 5030c8e32cc1SDaniel Vetter * @encoder: encoder to attach @connector to 5031c8e32cc1SDaniel Vetter * 5032c8e32cc1SDaniel Vetter * This function links up a connector to an encoder. Note that the routing 5033c8e32cc1SDaniel Vetter * restrictions between encoders and crtcs are exposed to userspace through the 5034c8e32cc1SDaniel Vetter * possible_clones and possible_crtcs bitmasks. 5035c8e32cc1SDaniel Vetter * 5036c8e32cc1SDaniel Vetter * Returns: 50371a498633SDaniel Vetter * Zero on success, negative errno on failure. 5038c8e32cc1SDaniel Vetter */ 5039f453ba04SDave Airlie int drm_mode_connector_attach_encoder(struct drm_connector *connector, 5040f453ba04SDave Airlie struct drm_encoder *encoder) 5041f453ba04SDave Airlie { 5042f453ba04SDave Airlie int i; 5043f453ba04SDave Airlie 5044f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 5045f453ba04SDave Airlie if (connector->encoder_ids[i] == 0) { 5046f453ba04SDave Airlie connector->encoder_ids[i] = encoder->base.id; 5047f453ba04SDave Airlie return 0; 5048f453ba04SDave Airlie } 5049f453ba04SDave Airlie } 5050f453ba04SDave Airlie return -ENOMEM; 5051f453ba04SDave Airlie } 5052f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_connector_attach_encoder); 5053f453ba04SDave Airlie 5054c8e32cc1SDaniel Vetter /** 5055c8e32cc1SDaniel Vetter * drm_mode_crtc_set_gamma_size - set the gamma table size 5056c8e32cc1SDaniel Vetter * @crtc: CRTC to set the gamma table size for 5057c8e32cc1SDaniel Vetter * @gamma_size: size of the gamma table 5058c8e32cc1SDaniel Vetter * 5059c8e32cc1SDaniel Vetter * Drivers which support gamma tables should set this to the supported gamma 5060c8e32cc1SDaniel Vetter * table size when initializing the CRTC. Currently the drm core only supports a 5061c8e32cc1SDaniel Vetter * fixed gamma table size. 5062c8e32cc1SDaniel Vetter * 5063c8e32cc1SDaniel Vetter * Returns: 50641a498633SDaniel Vetter * Zero on success, negative errno on failure. 5065c8e32cc1SDaniel Vetter */ 50664cae5b84SSascha Hauer int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 5067f453ba04SDave Airlie int gamma_size) 5068f453ba04SDave Airlie { 5069f453ba04SDave Airlie crtc->gamma_size = gamma_size; 5070f453ba04SDave Airlie 5071bd3f0ff9SThierry Reding crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, 5072bd3f0ff9SThierry Reding GFP_KERNEL); 5073f453ba04SDave Airlie if (!crtc->gamma_store) { 5074f453ba04SDave Airlie crtc->gamma_size = 0; 50754cae5b84SSascha Hauer return -ENOMEM; 5076f453ba04SDave Airlie } 5077f453ba04SDave Airlie 50784cae5b84SSascha Hauer return 0; 5079f453ba04SDave Airlie } 5080f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); 5081f453ba04SDave Airlie 5082c8e32cc1SDaniel Vetter /** 5083c8e32cc1SDaniel Vetter * drm_mode_gamma_set_ioctl - set the gamma table 5084c8e32cc1SDaniel Vetter * @dev: DRM device 5085c8e32cc1SDaniel Vetter * @data: ioctl data 5086c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5087c8e32cc1SDaniel Vetter * 5088c8e32cc1SDaniel Vetter * Set the gamma table of a CRTC to the one passed in by the user. Userspace can 5089c8e32cc1SDaniel Vetter * inquire the required gamma table size through drm_mode_gamma_get_ioctl. 5090c8e32cc1SDaniel Vetter * 5091c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5092c8e32cc1SDaniel Vetter * 5093c8e32cc1SDaniel Vetter * Returns: 50941a498633SDaniel Vetter * Zero on success, negative errno on failure. 5095c8e32cc1SDaniel Vetter */ 5096f453ba04SDave Airlie int drm_mode_gamma_set_ioctl(struct drm_device *dev, 5097f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5098f453ba04SDave Airlie { 5099f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5100f453ba04SDave Airlie struct drm_crtc *crtc; 5101f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5102f453ba04SDave Airlie int size; 5103f453ba04SDave Airlie int ret = 0; 5104f453ba04SDave Airlie 5105fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5106fb3b06c8SDave Airlie return -EINVAL; 5107fb3b06c8SDave Airlie 510884849903SDaniel Vetter drm_modeset_lock_all(dev); 5109a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5110a2b34e22SRob Clark if (!crtc) { 5111f27657f2SVille Syrjälä ret = -ENOENT; 5112f453ba04SDave Airlie goto out; 5113f453ba04SDave Airlie } 5114f453ba04SDave Airlie 5115ebe0f244SLaurent Pinchart if (crtc->funcs->gamma_set == NULL) { 5116ebe0f244SLaurent Pinchart ret = -ENOSYS; 5117ebe0f244SLaurent Pinchart goto out; 5118ebe0f244SLaurent Pinchart } 5119ebe0f244SLaurent Pinchart 5120f453ba04SDave Airlie /* memcpy into gamma store */ 5121f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5122f453ba04SDave Airlie ret = -EINVAL; 5123f453ba04SDave Airlie goto out; 5124f453ba04SDave Airlie } 5125f453ba04SDave Airlie 5126f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5127f453ba04SDave Airlie r_base = crtc->gamma_store; 5128f453ba04SDave Airlie if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { 5129f453ba04SDave Airlie ret = -EFAULT; 5130f453ba04SDave Airlie goto out; 5131f453ba04SDave Airlie } 5132f453ba04SDave Airlie 5133f453ba04SDave Airlie g_base = r_base + size; 5134f453ba04SDave Airlie if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { 5135f453ba04SDave Airlie ret = -EFAULT; 5136f453ba04SDave Airlie goto out; 5137f453ba04SDave Airlie } 5138f453ba04SDave Airlie 5139f453ba04SDave Airlie b_base = g_base + size; 5140f453ba04SDave Airlie if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { 5141f453ba04SDave Airlie ret = -EFAULT; 5142f453ba04SDave Airlie goto out; 5143f453ba04SDave Airlie } 5144f453ba04SDave Airlie 51457203425aSJames Simmons crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 5146f453ba04SDave Airlie 5147f453ba04SDave Airlie out: 514884849903SDaniel Vetter drm_modeset_unlock_all(dev); 5149f453ba04SDave Airlie return ret; 5150f453ba04SDave Airlie 5151f453ba04SDave Airlie } 5152f453ba04SDave Airlie 5153c8e32cc1SDaniel Vetter /** 5154c8e32cc1SDaniel Vetter * drm_mode_gamma_get_ioctl - get the gamma table 5155c8e32cc1SDaniel Vetter * @dev: DRM device 5156c8e32cc1SDaniel Vetter * @data: ioctl data 5157c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5158c8e32cc1SDaniel Vetter * 5159c8e32cc1SDaniel Vetter * Copy the current gamma table into the storage provided. This also provides 5160c8e32cc1SDaniel Vetter * the gamma table size the driver expects, which can be used to size the 5161c8e32cc1SDaniel Vetter * allocated storage. 5162c8e32cc1SDaniel Vetter * 5163c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5164c8e32cc1SDaniel Vetter * 5165c8e32cc1SDaniel Vetter * Returns: 51661a498633SDaniel Vetter * Zero on success, negative errno on failure. 5167c8e32cc1SDaniel Vetter */ 5168f453ba04SDave Airlie int drm_mode_gamma_get_ioctl(struct drm_device *dev, 5169f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5170f453ba04SDave Airlie { 5171f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5172f453ba04SDave Airlie struct drm_crtc *crtc; 5173f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5174f453ba04SDave Airlie int size; 5175f453ba04SDave Airlie int ret = 0; 5176f453ba04SDave Airlie 5177fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5178fb3b06c8SDave Airlie return -EINVAL; 5179fb3b06c8SDave Airlie 518084849903SDaniel Vetter drm_modeset_lock_all(dev); 5181a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5182a2b34e22SRob Clark if (!crtc) { 5183f27657f2SVille Syrjälä ret = -ENOENT; 5184f453ba04SDave Airlie goto out; 5185f453ba04SDave Airlie } 5186f453ba04SDave Airlie 5187f453ba04SDave Airlie /* memcpy into gamma store */ 5188f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5189f453ba04SDave Airlie ret = -EINVAL; 5190f453ba04SDave Airlie goto out; 5191f453ba04SDave Airlie } 5192f453ba04SDave Airlie 5193f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5194f453ba04SDave Airlie r_base = crtc->gamma_store; 5195f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { 5196f453ba04SDave Airlie ret = -EFAULT; 5197f453ba04SDave Airlie goto out; 5198f453ba04SDave Airlie } 5199f453ba04SDave Airlie 5200f453ba04SDave Airlie g_base = r_base + size; 5201f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { 5202f453ba04SDave Airlie ret = -EFAULT; 5203f453ba04SDave Airlie goto out; 5204f453ba04SDave Airlie } 5205f453ba04SDave Airlie 5206f453ba04SDave Airlie b_base = g_base + size; 5207f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { 5208f453ba04SDave Airlie ret = -EFAULT; 5209f453ba04SDave Airlie goto out; 5210f453ba04SDave Airlie } 5211f453ba04SDave Airlie out: 521284849903SDaniel Vetter drm_modeset_unlock_all(dev); 5213f453ba04SDave Airlie return ret; 5214f453ba04SDave Airlie } 5215d91d8a3fSKristian Høgsberg 5216c8e32cc1SDaniel Vetter /** 5217c8e32cc1SDaniel Vetter * drm_mode_page_flip_ioctl - schedule an asynchronous fb update 5218c8e32cc1SDaniel Vetter * @dev: DRM device 5219c8e32cc1SDaniel Vetter * @data: ioctl data 5220c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5221c8e32cc1SDaniel Vetter * 5222c8e32cc1SDaniel Vetter * This schedules an asynchronous update on a given CRTC, called page flip. 5223c8e32cc1SDaniel Vetter * Optionally a drm event is generated to signal the completion of the event. 5224c8e32cc1SDaniel Vetter * Generic drivers cannot assume that a pageflip with changed framebuffer 5225c8e32cc1SDaniel Vetter * properties (including driver specific metadata like tiling layout) will work, 5226c8e32cc1SDaniel Vetter * but some drivers support e.g. pixel format changes through the pageflip 5227c8e32cc1SDaniel Vetter * ioctl. 5228c8e32cc1SDaniel Vetter * 5229c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5230c8e32cc1SDaniel Vetter * 5231c8e32cc1SDaniel Vetter * Returns: 52321a498633SDaniel Vetter * Zero on success, negative errno on failure. 5233c8e32cc1SDaniel Vetter */ 5234d91d8a3fSKristian Høgsberg int drm_mode_page_flip_ioctl(struct drm_device *dev, 5235d91d8a3fSKristian Høgsberg void *data, struct drm_file *file_priv) 5236d91d8a3fSKristian Høgsberg { 5237d91d8a3fSKristian Høgsberg struct drm_mode_crtc_page_flip *page_flip = data; 5238d91d8a3fSKristian Høgsberg struct drm_crtc *crtc; 52393d30a59bSDaniel Vetter struct drm_framebuffer *fb = NULL; 5240d91d8a3fSKristian Høgsberg struct drm_pending_vblank_event *e = NULL; 5241d91d8a3fSKristian Høgsberg unsigned long flags; 5242d91d8a3fSKristian Høgsberg int ret = -EINVAL; 5243d91d8a3fSKristian Høgsberg 5244d91d8a3fSKristian Høgsberg if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || 5245d91d8a3fSKristian Høgsberg page_flip->reserved != 0) 5246d91d8a3fSKristian Høgsberg return -EINVAL; 5247d91d8a3fSKristian Høgsberg 524862f2104fSKeith Packard if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) 524962f2104fSKeith Packard return -EINVAL; 525062f2104fSKeith Packard 5251a2b34e22SRob Clark crtc = drm_crtc_find(dev, page_flip->crtc_id); 5252a2b34e22SRob Clark if (!crtc) 5253f27657f2SVille Syrjälä return -ENOENT; 5254d91d8a3fSKristian Høgsberg 52554d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 5256f4510a27SMatt Roper if (crtc->primary->fb == NULL) { 525790c1efddSChris Wilson /* The framebuffer is currently unbound, presumably 525890c1efddSChris Wilson * due to a hotplug event, that userspace has not 525990c1efddSChris Wilson * yet discovered. 526090c1efddSChris Wilson */ 526190c1efddSChris Wilson ret = -EBUSY; 526290c1efddSChris Wilson goto out; 526390c1efddSChris Wilson } 526490c1efddSChris Wilson 5265d91d8a3fSKristian Høgsberg if (crtc->funcs->page_flip == NULL) 5266d91d8a3fSKristian Høgsberg goto out; 5267d91d8a3fSKristian Høgsberg 5268786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, page_flip->fb_id); 526937c4e705SVille Syrjälä if (!fb) { 527037c4e705SVille Syrjälä ret = -ENOENT; 5271d91d8a3fSKristian Høgsberg goto out; 527237c4e705SVille Syrjälä } 5273d91d8a3fSKristian Høgsberg 5274c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); 5275c11e9283SDamien Lespiau if (ret) 52765f61bb42SVille Syrjälä goto out; 52775f61bb42SVille Syrjälä 5278f4510a27SMatt Roper if (crtc->primary->fb->pixel_format != fb->pixel_format) { 5279909d9cdaSLaurent Pinchart DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); 5280909d9cdaSLaurent Pinchart ret = -EINVAL; 5281909d9cdaSLaurent Pinchart goto out; 5282909d9cdaSLaurent Pinchart } 5283909d9cdaSLaurent Pinchart 5284d91d8a3fSKristian Høgsberg if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 5285d91d8a3fSKristian Høgsberg ret = -ENOMEM; 5286d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5287f76511b9SThierry Reding if (file_priv->event_space < sizeof(e->event)) { 5288d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5289d91d8a3fSKristian Høgsberg goto out; 5290d91d8a3fSKristian Høgsberg } 5291f76511b9SThierry Reding file_priv->event_space -= sizeof(e->event); 5292d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5293d91d8a3fSKristian Høgsberg 5294f76511b9SThierry Reding e = kzalloc(sizeof(*e), GFP_KERNEL); 5295d91d8a3fSKristian Høgsberg if (e == NULL) { 5296d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5297f76511b9SThierry Reding file_priv->event_space += sizeof(e->event); 5298d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5299d91d8a3fSKristian Høgsberg goto out; 5300d91d8a3fSKristian Høgsberg } 5301d91d8a3fSKristian Høgsberg 53027bd4d7beSJesse Barnes e->event.base.type = DRM_EVENT_FLIP_COMPLETE; 5303f76511b9SThierry Reding e->event.base.length = sizeof(e->event); 5304d91d8a3fSKristian Høgsberg e->event.user_data = page_flip->user_data; 5305d91d8a3fSKristian Høgsberg e->base.event = &e->event.base; 5306d91d8a3fSKristian Høgsberg e->base.file_priv = file_priv; 5307d91d8a3fSKristian Høgsberg e->base.destroy = 5308d91d8a3fSKristian Høgsberg (void (*) (struct drm_pending_event *)) kfree; 5309d91d8a3fSKristian Høgsberg } 5310d91d8a3fSKristian Høgsberg 53113d30a59bSDaniel Vetter crtc->primary->old_fb = crtc->primary->fb; 5312ed8d1975SKeith Packard ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); 5313d91d8a3fSKristian Høgsberg if (ret) { 5314aef6a7eeSJoonyoung Shim if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 5315d91d8a3fSKristian Høgsberg spin_lock_irqsave(&dev->event_lock, flags); 5316f76511b9SThierry Reding file_priv->event_space += sizeof(e->event); 5317d91d8a3fSKristian Høgsberg spin_unlock_irqrestore(&dev->event_lock, flags); 5318d91d8a3fSKristian Høgsberg kfree(e); 5319d91d8a3fSKristian Høgsberg } 5320b0d12325SDaniel Vetter /* Keep the old fb, don't unref it. */ 53213d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5322b0d12325SDaniel Vetter } else { 53238cf1e981SThierry Reding /* 53248cf1e981SThierry Reding * Warn if the driver hasn't properly updated the crtc->fb 53258cf1e981SThierry Reding * field to reflect that the new framebuffer is now used. 53268cf1e981SThierry Reding * Failing to do so will screw with the reference counting 53278cf1e981SThierry Reding * on framebuffers. 53288cf1e981SThierry Reding */ 5329f4510a27SMatt Roper WARN_ON(crtc->primary->fb != fb); 5330b0d12325SDaniel Vetter /* Unref only the old framebuffer. */ 5331b0d12325SDaniel Vetter fb = NULL; 5332aef6a7eeSJoonyoung Shim } 5333d91d8a3fSKristian Høgsberg 5334d91d8a3fSKristian Høgsberg out: 5335b0d12325SDaniel Vetter if (fb) 5336b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 53373d30a59bSDaniel Vetter if (crtc->primary->old_fb) 53383d30a59bSDaniel Vetter drm_framebuffer_unreference(crtc->primary->old_fb); 53393d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5340d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 5341b4d5e7d1SDaniel Vetter 5342d91d8a3fSKristian Høgsberg return ret; 5343d91d8a3fSKristian Høgsberg } 5344eb033556SChris Wilson 5345c8e32cc1SDaniel Vetter /** 5346c8e32cc1SDaniel Vetter * drm_mode_config_reset - call ->reset callbacks 5347c8e32cc1SDaniel Vetter * @dev: drm device 5348c8e32cc1SDaniel Vetter * 5349c8e32cc1SDaniel Vetter * This functions calls all the crtc's, encoder's and connector's ->reset 5350c8e32cc1SDaniel Vetter * callback. Drivers can use this in e.g. their driver load or resume code to 5351c8e32cc1SDaniel Vetter * reset hardware and software state. 5352c8e32cc1SDaniel Vetter */ 5353eb033556SChris Wilson void drm_mode_config_reset(struct drm_device *dev) 5354eb033556SChris Wilson { 5355eb033556SChris Wilson struct drm_crtc *crtc; 53562a0d7cfdSDaniel Vetter struct drm_plane *plane; 5357eb033556SChris Wilson struct drm_encoder *encoder; 5358eb033556SChris Wilson struct drm_connector *connector; 5359eb033556SChris Wilson 53602a0d7cfdSDaniel Vetter list_for_each_entry(plane, &dev->mode_config.plane_list, head) 53612a0d7cfdSDaniel Vetter if (plane->funcs->reset) 53622a0d7cfdSDaniel Vetter plane->funcs->reset(plane); 53632a0d7cfdSDaniel Vetter 5364eb033556SChris Wilson list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 5365eb033556SChris Wilson if (crtc->funcs->reset) 5366eb033556SChris Wilson crtc->funcs->reset(crtc); 5367eb033556SChris Wilson 5368eb033556SChris Wilson list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 5369eb033556SChris Wilson if (encoder->funcs->reset) 5370eb033556SChris Wilson encoder->funcs->reset(encoder); 5371eb033556SChris Wilson 53725e2cb2f6SDaniel Vetter list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 53735e2cb2f6SDaniel Vetter connector->status = connector_status_unknown; 53745e2cb2f6SDaniel Vetter 5375eb033556SChris Wilson if (connector->funcs->reset) 5376eb033556SChris Wilson connector->funcs->reset(connector); 5377eb033556SChris Wilson } 53785e2cb2f6SDaniel Vetter } 5379eb033556SChris Wilson EXPORT_SYMBOL(drm_mode_config_reset); 5380ff72145bSDave Airlie 5381c8e32cc1SDaniel Vetter /** 5382c8e32cc1SDaniel Vetter * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer 5383c8e32cc1SDaniel Vetter * @dev: DRM device 5384c8e32cc1SDaniel Vetter * @data: ioctl data 5385c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5386c8e32cc1SDaniel Vetter * 5387c8e32cc1SDaniel Vetter * This creates a new dumb buffer in the driver's backing storage manager (GEM, 5388c8e32cc1SDaniel Vetter * TTM or something else entirely) and returns the resulting buffer handle. This 5389c8e32cc1SDaniel Vetter * handle can then be wrapped up into a framebuffer modeset object. 5390c8e32cc1SDaniel Vetter * 5391c8e32cc1SDaniel Vetter * Note that userspace is not allowed to use such objects for render 5392c8e32cc1SDaniel Vetter * acceleration - drivers must create their own private ioctls for such a use 5393c8e32cc1SDaniel Vetter * case. 5394c8e32cc1SDaniel Vetter * 5395c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5396c8e32cc1SDaniel Vetter * 5397c8e32cc1SDaniel Vetter * Returns: 53981a498633SDaniel Vetter * Zero on success, negative errno on failure. 5399c8e32cc1SDaniel Vetter */ 5400ff72145bSDave Airlie int drm_mode_create_dumb_ioctl(struct drm_device *dev, 5401ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5402ff72145bSDave Airlie { 5403ff72145bSDave Airlie struct drm_mode_create_dumb *args = data; 5404b28cd41fSDavid Herrmann u32 cpp, stride, size; 5405ff72145bSDave Airlie 5406ff72145bSDave Airlie if (!dev->driver->dumb_create) 5407ff72145bSDave Airlie return -ENOSYS; 5408b28cd41fSDavid Herrmann if (!args->width || !args->height || !args->bpp) 5409b28cd41fSDavid Herrmann return -EINVAL; 5410b28cd41fSDavid Herrmann 5411b28cd41fSDavid Herrmann /* overflow checks for 32bit size calculations */ 541200e72089SDavid Herrmann /* NOTE: DIV_ROUND_UP() can overflow */ 5413b28cd41fSDavid Herrmann cpp = DIV_ROUND_UP(args->bpp, 8); 541400e72089SDavid Herrmann if (!cpp || cpp > 0xffffffffU / args->width) 5415b28cd41fSDavid Herrmann return -EINVAL; 5416b28cd41fSDavid Herrmann stride = cpp * args->width; 5417b28cd41fSDavid Herrmann if (args->height > 0xffffffffU / stride) 5418b28cd41fSDavid Herrmann return -EINVAL; 5419b28cd41fSDavid Herrmann 5420b28cd41fSDavid Herrmann /* test for wrap-around */ 5421b28cd41fSDavid Herrmann size = args->height * stride; 5422b28cd41fSDavid Herrmann if (PAGE_ALIGN(size) == 0) 5423b28cd41fSDavid Herrmann return -EINVAL; 5424b28cd41fSDavid Herrmann 5425f6085952SThierry Reding /* 5426f6085952SThierry Reding * handle, pitch and size are output parameters. Zero them out to 5427f6085952SThierry Reding * prevent drivers from accidentally using uninitialized data. Since 5428f6085952SThierry Reding * not all existing userspace is clearing these fields properly we 5429f6085952SThierry Reding * cannot reject IOCTL with garbage in them. 5430f6085952SThierry Reding */ 5431f6085952SThierry Reding args->handle = 0; 5432f6085952SThierry Reding args->pitch = 0; 5433f6085952SThierry Reding args->size = 0; 5434f6085952SThierry Reding 5435ff72145bSDave Airlie return dev->driver->dumb_create(file_priv, dev, args); 5436ff72145bSDave Airlie } 5437ff72145bSDave Airlie 5438c8e32cc1SDaniel Vetter /** 5439c8e32cc1SDaniel Vetter * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer 5440c8e32cc1SDaniel Vetter * @dev: DRM device 5441c8e32cc1SDaniel Vetter * @data: ioctl data 5442c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5443c8e32cc1SDaniel Vetter * 5444c8e32cc1SDaniel Vetter * Allocate an offset in the drm device node's address space to be able to 5445c8e32cc1SDaniel Vetter * memory map a dumb buffer. 5446c8e32cc1SDaniel Vetter * 5447c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5448c8e32cc1SDaniel Vetter * 5449c8e32cc1SDaniel Vetter * Returns: 54501a498633SDaniel Vetter * Zero on success, negative errno on failure. 5451c8e32cc1SDaniel Vetter */ 5452ff72145bSDave Airlie int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 5453ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5454ff72145bSDave Airlie { 5455ff72145bSDave Airlie struct drm_mode_map_dumb *args = data; 5456ff72145bSDave Airlie 5457ff72145bSDave Airlie /* call driver ioctl to get mmap offset */ 5458ff72145bSDave Airlie if (!dev->driver->dumb_map_offset) 5459ff72145bSDave Airlie return -ENOSYS; 5460ff72145bSDave Airlie 5461ff72145bSDave Airlie return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); 5462ff72145bSDave Airlie } 5463ff72145bSDave Airlie 5464c8e32cc1SDaniel Vetter /** 5465c8e32cc1SDaniel Vetter * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer 5466c8e32cc1SDaniel Vetter * @dev: DRM device 5467c8e32cc1SDaniel Vetter * @data: ioctl data 5468c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5469c8e32cc1SDaniel Vetter * 5470c8e32cc1SDaniel Vetter * This destroys the userspace handle for the given dumb backing storage buffer. 5471c8e32cc1SDaniel Vetter * Since buffer objects must be reference counted in the kernel a buffer object 5472c8e32cc1SDaniel Vetter * won't be immediately freed if a framebuffer modeset object still uses it. 5473c8e32cc1SDaniel Vetter * 5474c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5475c8e32cc1SDaniel Vetter * 5476c8e32cc1SDaniel Vetter * Returns: 54771a498633SDaniel Vetter * Zero on success, negative errno on failure. 5478c8e32cc1SDaniel Vetter */ 5479ff72145bSDave Airlie int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 5480ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5481ff72145bSDave Airlie { 5482ff72145bSDave Airlie struct drm_mode_destroy_dumb *args = data; 5483ff72145bSDave Airlie 5484ff72145bSDave Airlie if (!dev->driver->dumb_destroy) 5485ff72145bSDave Airlie return -ENOSYS; 5486ff72145bSDave Airlie 5487ff72145bSDave Airlie return dev->driver->dumb_destroy(file_priv, dev, args->handle); 5488ff72145bSDave Airlie } 5489248dbc23SDave Airlie 5490c8e32cc1SDaniel Vetter /** 5491c8e32cc1SDaniel Vetter * drm_fb_get_bpp_depth - get the bpp/depth values for format 5492c8e32cc1SDaniel Vetter * @format: pixel format (DRM_FORMAT_*) 5493c8e32cc1SDaniel Vetter * @depth: storage for the depth value 5494c8e32cc1SDaniel Vetter * @bpp: storage for the bpp value 5495c8e32cc1SDaniel Vetter * 5496c8e32cc1SDaniel Vetter * This only supports RGB formats here for compat with code that doesn't use 5497c8e32cc1SDaniel Vetter * pixel formats directly yet. 5498248dbc23SDave Airlie */ 5499248dbc23SDave Airlie void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 5500248dbc23SDave Airlie int *bpp) 5501248dbc23SDave Airlie { 5502248dbc23SDave Airlie switch (format) { 5503c51a6bc5SVille Syrjälä case DRM_FORMAT_C8: 550404b3924dSVille Syrjälä case DRM_FORMAT_RGB332: 550504b3924dSVille Syrjälä case DRM_FORMAT_BGR233: 5506248dbc23SDave Airlie *depth = 8; 5507248dbc23SDave Airlie *bpp = 8; 5508248dbc23SDave Airlie break; 550904b3924dSVille Syrjälä case DRM_FORMAT_XRGB1555: 551004b3924dSVille Syrjälä case DRM_FORMAT_XBGR1555: 551104b3924dSVille Syrjälä case DRM_FORMAT_RGBX5551: 551204b3924dSVille Syrjälä case DRM_FORMAT_BGRX5551: 551304b3924dSVille Syrjälä case DRM_FORMAT_ARGB1555: 551404b3924dSVille Syrjälä case DRM_FORMAT_ABGR1555: 551504b3924dSVille Syrjälä case DRM_FORMAT_RGBA5551: 551604b3924dSVille Syrjälä case DRM_FORMAT_BGRA5551: 5517248dbc23SDave Airlie *depth = 15; 5518248dbc23SDave Airlie *bpp = 16; 5519248dbc23SDave Airlie break; 552004b3924dSVille Syrjälä case DRM_FORMAT_RGB565: 552104b3924dSVille Syrjälä case DRM_FORMAT_BGR565: 5522248dbc23SDave Airlie *depth = 16; 5523248dbc23SDave Airlie *bpp = 16; 5524248dbc23SDave Airlie break; 552504b3924dSVille Syrjälä case DRM_FORMAT_RGB888: 552604b3924dSVille Syrjälä case DRM_FORMAT_BGR888: 552704b3924dSVille Syrjälä *depth = 24; 552804b3924dSVille Syrjälä *bpp = 24; 552904b3924dSVille Syrjälä break; 553004b3924dSVille Syrjälä case DRM_FORMAT_XRGB8888: 553104b3924dSVille Syrjälä case DRM_FORMAT_XBGR8888: 553204b3924dSVille Syrjälä case DRM_FORMAT_RGBX8888: 553304b3924dSVille Syrjälä case DRM_FORMAT_BGRX8888: 5534248dbc23SDave Airlie *depth = 24; 5535248dbc23SDave Airlie *bpp = 32; 5536248dbc23SDave Airlie break; 553704b3924dSVille Syrjälä case DRM_FORMAT_XRGB2101010: 553804b3924dSVille Syrjälä case DRM_FORMAT_XBGR2101010: 553904b3924dSVille Syrjälä case DRM_FORMAT_RGBX1010102: 554004b3924dSVille Syrjälä case DRM_FORMAT_BGRX1010102: 554104b3924dSVille Syrjälä case DRM_FORMAT_ARGB2101010: 554204b3924dSVille Syrjälä case DRM_FORMAT_ABGR2101010: 554304b3924dSVille Syrjälä case DRM_FORMAT_RGBA1010102: 554404b3924dSVille Syrjälä case DRM_FORMAT_BGRA1010102: 5545248dbc23SDave Airlie *depth = 30; 5546248dbc23SDave Airlie *bpp = 32; 5547248dbc23SDave Airlie break; 554804b3924dSVille Syrjälä case DRM_FORMAT_ARGB8888: 554904b3924dSVille Syrjälä case DRM_FORMAT_ABGR8888: 555004b3924dSVille Syrjälä case DRM_FORMAT_RGBA8888: 555104b3924dSVille Syrjälä case DRM_FORMAT_BGRA8888: 5552248dbc23SDave Airlie *depth = 32; 5553248dbc23SDave Airlie *bpp = 32; 5554248dbc23SDave Airlie break; 5555248dbc23SDave Airlie default: 555623c453a4SVille Syrjälä DRM_DEBUG_KMS("unsupported pixel format %s\n", 555723c453a4SVille Syrjälä drm_get_format_name(format)); 5558248dbc23SDave Airlie *depth = 0; 5559248dbc23SDave Airlie *bpp = 0; 5560248dbc23SDave Airlie break; 5561248dbc23SDave Airlie } 5562248dbc23SDave Airlie } 5563248dbc23SDave Airlie EXPORT_SYMBOL(drm_fb_get_bpp_depth); 5564141670e9SVille Syrjälä 5565141670e9SVille Syrjälä /** 5566141670e9SVille Syrjälä * drm_format_num_planes - get the number of planes for format 5567141670e9SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 5568141670e9SVille Syrjälä * 5569c8e32cc1SDaniel Vetter * Returns: 5570141670e9SVille Syrjälä * The number of planes used by the specified pixel format. 5571141670e9SVille Syrjälä */ 5572141670e9SVille Syrjälä int drm_format_num_planes(uint32_t format) 5573141670e9SVille Syrjälä { 5574141670e9SVille Syrjälä switch (format) { 5575141670e9SVille Syrjälä case DRM_FORMAT_YUV410: 5576141670e9SVille Syrjälä case DRM_FORMAT_YVU410: 5577141670e9SVille Syrjälä case DRM_FORMAT_YUV411: 5578141670e9SVille Syrjälä case DRM_FORMAT_YVU411: 5579141670e9SVille Syrjälä case DRM_FORMAT_YUV420: 5580141670e9SVille Syrjälä case DRM_FORMAT_YVU420: 5581141670e9SVille Syrjälä case DRM_FORMAT_YUV422: 5582141670e9SVille Syrjälä case DRM_FORMAT_YVU422: 5583141670e9SVille Syrjälä case DRM_FORMAT_YUV444: 5584141670e9SVille Syrjälä case DRM_FORMAT_YVU444: 5585141670e9SVille Syrjälä return 3; 5586141670e9SVille Syrjälä case DRM_FORMAT_NV12: 5587141670e9SVille Syrjälä case DRM_FORMAT_NV21: 5588141670e9SVille Syrjälä case DRM_FORMAT_NV16: 5589141670e9SVille Syrjälä case DRM_FORMAT_NV61: 5590ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 5591ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 5592141670e9SVille Syrjälä return 2; 5593141670e9SVille Syrjälä default: 5594141670e9SVille Syrjälä return 1; 5595141670e9SVille Syrjälä } 5596141670e9SVille Syrjälä } 5597141670e9SVille Syrjälä EXPORT_SYMBOL(drm_format_num_planes); 55985a86bd55SVille Syrjälä 55995a86bd55SVille Syrjälä /** 56005a86bd55SVille Syrjälä * drm_format_plane_cpp - determine the bytes per pixel value 56015a86bd55SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 56025a86bd55SVille Syrjälä * @plane: plane index 56035a86bd55SVille Syrjälä * 5604c8e32cc1SDaniel Vetter * Returns: 56055a86bd55SVille Syrjälä * The bytes per pixel value for the specified plane. 56065a86bd55SVille Syrjälä */ 56075a86bd55SVille Syrjälä int drm_format_plane_cpp(uint32_t format, int plane) 56085a86bd55SVille Syrjälä { 56095a86bd55SVille Syrjälä unsigned int depth; 56105a86bd55SVille Syrjälä int bpp; 56115a86bd55SVille Syrjälä 56125a86bd55SVille Syrjälä if (plane >= drm_format_num_planes(format)) 56135a86bd55SVille Syrjälä return 0; 56145a86bd55SVille Syrjälä 56155a86bd55SVille Syrjälä switch (format) { 56165a86bd55SVille Syrjälä case DRM_FORMAT_YUYV: 56175a86bd55SVille Syrjälä case DRM_FORMAT_YVYU: 56185a86bd55SVille Syrjälä case DRM_FORMAT_UYVY: 56195a86bd55SVille Syrjälä case DRM_FORMAT_VYUY: 56205a86bd55SVille Syrjälä return 2; 56215a86bd55SVille Syrjälä case DRM_FORMAT_NV12: 56225a86bd55SVille Syrjälä case DRM_FORMAT_NV21: 56235a86bd55SVille Syrjälä case DRM_FORMAT_NV16: 56245a86bd55SVille Syrjälä case DRM_FORMAT_NV61: 5625ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 5626ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 56275a86bd55SVille Syrjälä return plane ? 2 : 1; 56285a86bd55SVille Syrjälä case DRM_FORMAT_YUV410: 56295a86bd55SVille Syrjälä case DRM_FORMAT_YVU410: 56305a86bd55SVille Syrjälä case DRM_FORMAT_YUV411: 56315a86bd55SVille Syrjälä case DRM_FORMAT_YVU411: 56325a86bd55SVille Syrjälä case DRM_FORMAT_YUV420: 56335a86bd55SVille Syrjälä case DRM_FORMAT_YVU420: 56345a86bd55SVille Syrjälä case DRM_FORMAT_YUV422: 56355a86bd55SVille Syrjälä case DRM_FORMAT_YVU422: 56365a86bd55SVille Syrjälä case DRM_FORMAT_YUV444: 56375a86bd55SVille Syrjälä case DRM_FORMAT_YVU444: 56385a86bd55SVille Syrjälä return 1; 56395a86bd55SVille Syrjälä default: 56405a86bd55SVille Syrjälä drm_fb_get_bpp_depth(format, &depth, &bpp); 56415a86bd55SVille Syrjälä return bpp >> 3; 56425a86bd55SVille Syrjälä } 56435a86bd55SVille Syrjälä } 56445a86bd55SVille Syrjälä EXPORT_SYMBOL(drm_format_plane_cpp); 564501b68b04SVille Syrjälä 564601b68b04SVille Syrjälä /** 564701b68b04SVille Syrjälä * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor 564801b68b04SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 564901b68b04SVille Syrjälä * 5650c8e32cc1SDaniel Vetter * Returns: 565101b68b04SVille Syrjälä * The horizontal chroma subsampling factor for the 565201b68b04SVille Syrjälä * specified pixel format. 565301b68b04SVille Syrjälä */ 565401b68b04SVille Syrjälä int drm_format_horz_chroma_subsampling(uint32_t format) 565501b68b04SVille Syrjälä { 565601b68b04SVille Syrjälä switch (format) { 565701b68b04SVille Syrjälä case DRM_FORMAT_YUV411: 565801b68b04SVille Syrjälä case DRM_FORMAT_YVU411: 565901b68b04SVille Syrjälä case DRM_FORMAT_YUV410: 566001b68b04SVille Syrjälä case DRM_FORMAT_YVU410: 566101b68b04SVille Syrjälä return 4; 566201b68b04SVille Syrjälä case DRM_FORMAT_YUYV: 566301b68b04SVille Syrjälä case DRM_FORMAT_YVYU: 566401b68b04SVille Syrjälä case DRM_FORMAT_UYVY: 566501b68b04SVille Syrjälä case DRM_FORMAT_VYUY: 566601b68b04SVille Syrjälä case DRM_FORMAT_NV12: 566701b68b04SVille Syrjälä case DRM_FORMAT_NV21: 566801b68b04SVille Syrjälä case DRM_FORMAT_NV16: 566901b68b04SVille Syrjälä case DRM_FORMAT_NV61: 567001b68b04SVille Syrjälä case DRM_FORMAT_YUV422: 567101b68b04SVille Syrjälä case DRM_FORMAT_YVU422: 567201b68b04SVille Syrjälä case DRM_FORMAT_YUV420: 567301b68b04SVille Syrjälä case DRM_FORMAT_YVU420: 567401b68b04SVille Syrjälä return 2; 567501b68b04SVille Syrjälä default: 567601b68b04SVille Syrjälä return 1; 567701b68b04SVille Syrjälä } 567801b68b04SVille Syrjälä } 567901b68b04SVille Syrjälä EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); 568001b68b04SVille Syrjälä 568101b68b04SVille Syrjälä /** 568201b68b04SVille Syrjälä * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor 568301b68b04SVille Syrjälä * @format: pixel format (DRM_FORMAT_*) 568401b68b04SVille Syrjälä * 5685c8e32cc1SDaniel Vetter * Returns: 568601b68b04SVille Syrjälä * The vertical chroma subsampling factor for the 568701b68b04SVille Syrjälä * specified pixel format. 568801b68b04SVille Syrjälä */ 568901b68b04SVille Syrjälä int drm_format_vert_chroma_subsampling(uint32_t format) 569001b68b04SVille Syrjälä { 569101b68b04SVille Syrjälä switch (format) { 569201b68b04SVille Syrjälä case DRM_FORMAT_YUV410: 569301b68b04SVille Syrjälä case DRM_FORMAT_YVU410: 569401b68b04SVille Syrjälä return 4; 569501b68b04SVille Syrjälä case DRM_FORMAT_YUV420: 569601b68b04SVille Syrjälä case DRM_FORMAT_YVU420: 569701b68b04SVille Syrjälä case DRM_FORMAT_NV12: 569801b68b04SVille Syrjälä case DRM_FORMAT_NV21: 569901b68b04SVille Syrjälä return 2; 570001b68b04SVille Syrjälä default: 570101b68b04SVille Syrjälä return 1; 570201b68b04SVille Syrjälä } 570301b68b04SVille Syrjälä } 570401b68b04SVille Syrjälä EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); 570587d24fc3SLaurent Pinchart 570687d24fc3SLaurent Pinchart /** 57073c9855f6SVille Syrjälä * drm_rotation_simplify() - Try to simplify the rotation 57083c9855f6SVille Syrjälä * @rotation: Rotation to be simplified 57093c9855f6SVille Syrjälä * @supported_rotations: Supported rotations 57103c9855f6SVille Syrjälä * 57113c9855f6SVille Syrjälä * Attempt to simplify the rotation to a form that is supported. 57123c9855f6SVille Syrjälä * Eg. if the hardware supports everything except DRM_REFLECT_X 57133c9855f6SVille Syrjälä * one could call this function like this: 57143c9855f6SVille Syrjälä * 57153c9855f6SVille Syrjälä * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | 57163c9855f6SVille Syrjälä * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | 57173c9855f6SVille Syrjälä * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); 57183c9855f6SVille Syrjälä * 57193c9855f6SVille Syrjälä * to eliminate the DRM_ROTATE_X flag. Depending on what kind of 57203c9855f6SVille Syrjälä * transforms the hardware supports, this function may not 57213c9855f6SVille Syrjälä * be able to produce a supported transform, so the caller should 57223c9855f6SVille Syrjälä * check the result afterwards. 57233c9855f6SVille Syrjälä */ 57243c9855f6SVille Syrjälä unsigned int drm_rotation_simplify(unsigned int rotation, 57253c9855f6SVille Syrjälä unsigned int supported_rotations) 57263c9855f6SVille Syrjälä { 57273c9855f6SVille Syrjälä if (rotation & ~supported_rotations) { 57283c9855f6SVille Syrjälä rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); 57293c9855f6SVille Syrjälä rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4); 57303c9855f6SVille Syrjälä } 57313c9855f6SVille Syrjälä 57323c9855f6SVille Syrjälä return rotation; 57333c9855f6SVille Syrjälä } 57343c9855f6SVille Syrjälä EXPORT_SYMBOL(drm_rotation_simplify); 57353c9855f6SVille Syrjälä 57363c9855f6SVille Syrjälä /** 573787d24fc3SLaurent Pinchart * drm_mode_config_init - initialize DRM mode_configuration structure 573887d24fc3SLaurent Pinchart * @dev: DRM device 573987d24fc3SLaurent Pinchart * 574087d24fc3SLaurent Pinchart * Initialize @dev's mode_config structure, used for tracking the graphics 574187d24fc3SLaurent Pinchart * configuration of @dev. 574287d24fc3SLaurent Pinchart * 574387d24fc3SLaurent Pinchart * Since this initializes the modeset locks, no locking is possible. Which is no 574487d24fc3SLaurent Pinchart * problem, since this should happen single threaded at init time. It is the 574587d24fc3SLaurent Pinchart * driver's problem to ensure this guarantee. 574687d24fc3SLaurent Pinchart * 574787d24fc3SLaurent Pinchart */ 574887d24fc3SLaurent Pinchart void drm_mode_config_init(struct drm_device *dev) 574987d24fc3SLaurent Pinchart { 575087d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.mutex); 575151fd371bSRob Clark drm_modeset_lock_init(&dev->mode_config.connection_mutex); 575287d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.idr_mutex); 575387d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.fb_lock); 57548fb6e7a5SDaniel Stone mutex_init(&dev->mode_config.blob_lock); 575587d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.fb_list); 575687d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.crtc_list); 575787d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.connector_list); 575887d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.encoder_list); 575987d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_list); 576087d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_blob_list); 576187d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.plane_list); 576287d24fc3SLaurent Pinchart idr_init(&dev->mode_config.crtc_idr); 5763138f9ebbSDave Airlie idr_init(&dev->mode_config.tile_idr); 576487d24fc3SLaurent Pinchart 576587d24fc3SLaurent Pinchart drm_modeset_lock_all(dev); 57666b4959f4SRob Clark drm_mode_create_standard_properties(dev); 576787d24fc3SLaurent Pinchart drm_modeset_unlock_all(dev); 576887d24fc3SLaurent Pinchart 576987d24fc3SLaurent Pinchart /* Just to be sure */ 577087d24fc3SLaurent Pinchart dev->mode_config.num_fb = 0; 577187d24fc3SLaurent Pinchart dev->mode_config.num_connector = 0; 577287d24fc3SLaurent Pinchart dev->mode_config.num_crtc = 0; 577387d24fc3SLaurent Pinchart dev->mode_config.num_encoder = 0; 5774e27dde3eSMatt Roper dev->mode_config.num_overlay_plane = 0; 5775e27dde3eSMatt Roper dev->mode_config.num_total_plane = 0; 577687d24fc3SLaurent Pinchart } 577787d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_init); 577887d24fc3SLaurent Pinchart 577987d24fc3SLaurent Pinchart /** 578087d24fc3SLaurent Pinchart * drm_mode_config_cleanup - free up DRM mode_config info 578187d24fc3SLaurent Pinchart * @dev: DRM device 578287d24fc3SLaurent Pinchart * 578387d24fc3SLaurent Pinchart * Free up all the connectors and CRTCs associated with this DRM device, then 578487d24fc3SLaurent Pinchart * free up the framebuffers and associated buffer objects. 578587d24fc3SLaurent Pinchart * 578687d24fc3SLaurent Pinchart * Note that since this /should/ happen single-threaded at driver/device 578787d24fc3SLaurent Pinchart * teardown time, no locking is required. It's the driver's job to ensure that 578887d24fc3SLaurent Pinchart * this guarantee actually holds true. 578987d24fc3SLaurent Pinchart * 579087d24fc3SLaurent Pinchart * FIXME: cleanup any dangling user buffer objects too 579187d24fc3SLaurent Pinchart */ 579287d24fc3SLaurent Pinchart void drm_mode_config_cleanup(struct drm_device *dev) 579387d24fc3SLaurent Pinchart { 579487d24fc3SLaurent Pinchart struct drm_connector *connector, *ot; 579587d24fc3SLaurent Pinchart struct drm_crtc *crtc, *ct; 579687d24fc3SLaurent Pinchart struct drm_encoder *encoder, *enct; 579787d24fc3SLaurent Pinchart struct drm_framebuffer *fb, *fbt; 579887d24fc3SLaurent Pinchart struct drm_property *property, *pt; 579987d24fc3SLaurent Pinchart struct drm_property_blob *blob, *bt; 580087d24fc3SLaurent Pinchart struct drm_plane *plane, *plt; 580187d24fc3SLaurent Pinchart 580287d24fc3SLaurent Pinchart list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, 580387d24fc3SLaurent Pinchart head) { 580487d24fc3SLaurent Pinchart encoder->funcs->destroy(encoder); 580587d24fc3SLaurent Pinchart } 580687d24fc3SLaurent Pinchart 580787d24fc3SLaurent Pinchart list_for_each_entry_safe(connector, ot, 580887d24fc3SLaurent Pinchart &dev->mode_config.connector_list, head) { 580987d24fc3SLaurent Pinchart connector->funcs->destroy(connector); 581087d24fc3SLaurent Pinchart } 581187d24fc3SLaurent Pinchart 581287d24fc3SLaurent Pinchart list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, 581387d24fc3SLaurent Pinchart head) { 581487d24fc3SLaurent Pinchart drm_property_destroy(dev, property); 581587d24fc3SLaurent Pinchart } 581687d24fc3SLaurent Pinchart 581787d24fc3SLaurent Pinchart list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, 5818e2f5d2eaSDaniel Stone head_global) { 58196bcacf51SDaniel Stone drm_property_unreference_blob(blob); 582087d24fc3SLaurent Pinchart } 582187d24fc3SLaurent Pinchart 582287d24fc3SLaurent Pinchart /* 582387d24fc3SLaurent Pinchart * Single-threaded teardown context, so it's not required to grab the 582487d24fc3SLaurent Pinchart * fb_lock to protect against concurrent fb_list access. Contrary, it 582587d24fc3SLaurent Pinchart * would actually deadlock with the drm_framebuffer_cleanup function. 582687d24fc3SLaurent Pinchart * 582787d24fc3SLaurent Pinchart * Also, if there are any framebuffers left, that's a driver leak now, 582887d24fc3SLaurent Pinchart * so politely WARN about this. 582987d24fc3SLaurent Pinchart */ 583087d24fc3SLaurent Pinchart WARN_ON(!list_empty(&dev->mode_config.fb_list)); 583187d24fc3SLaurent Pinchart list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { 583287d24fc3SLaurent Pinchart drm_framebuffer_remove(fb); 583387d24fc3SLaurent Pinchart } 583487d24fc3SLaurent Pinchart 583587d24fc3SLaurent Pinchart list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, 583687d24fc3SLaurent Pinchart head) { 583787d24fc3SLaurent Pinchart plane->funcs->destroy(plane); 583887d24fc3SLaurent Pinchart } 583987d24fc3SLaurent Pinchart 584087d24fc3SLaurent Pinchart list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { 584187d24fc3SLaurent Pinchart crtc->funcs->destroy(crtc); 584287d24fc3SLaurent Pinchart } 584387d24fc3SLaurent Pinchart 5844138f9ebbSDave Airlie idr_destroy(&dev->mode_config.tile_idr); 584587d24fc3SLaurent Pinchart idr_destroy(&dev->mode_config.crtc_idr); 584651fd371bSRob Clark drm_modeset_lock_fini(&dev->mode_config.connection_mutex); 584787d24fc3SLaurent Pinchart } 584887d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_cleanup); 5849c1df5f3cSVille Syrjälä 5850c1df5f3cSVille Syrjälä struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, 5851c1df5f3cSVille Syrjälä unsigned int supported_rotations) 5852c1df5f3cSVille Syrjälä { 5853c1df5f3cSVille Syrjälä static const struct drm_prop_enum_list props[] = { 5854c1df5f3cSVille Syrjälä { DRM_ROTATE_0, "rotate-0" }, 5855c1df5f3cSVille Syrjälä { DRM_ROTATE_90, "rotate-90" }, 5856c1df5f3cSVille Syrjälä { DRM_ROTATE_180, "rotate-180" }, 5857c1df5f3cSVille Syrjälä { DRM_ROTATE_270, "rotate-270" }, 5858c1df5f3cSVille Syrjälä { DRM_REFLECT_X, "reflect-x" }, 5859c1df5f3cSVille Syrjälä { DRM_REFLECT_Y, "reflect-y" }, 5860c1df5f3cSVille Syrjälä }; 5861c1df5f3cSVille Syrjälä 5862c1df5f3cSVille Syrjälä return drm_property_create_bitmask(dev, 0, "rotation", 5863c1df5f3cSVille Syrjälä props, ARRAY_SIZE(props), 5864c1df5f3cSVille Syrjälä supported_rotations); 5865c1df5f3cSVille Syrjälä } 5866c1df5f3cSVille Syrjälä EXPORT_SYMBOL(drm_mode_create_rotation_property); 5867138f9ebbSDave Airlie 5868138f9ebbSDave Airlie /** 5869138f9ebbSDave Airlie * DOC: Tile group 5870138f9ebbSDave Airlie * 5871138f9ebbSDave Airlie * Tile groups are used to represent tiled monitors with a unique 5872138f9ebbSDave Airlie * integer identifier. Tiled monitors using DisplayID v1.3 have 5873138f9ebbSDave Airlie * a unique 8-byte handle, we store this in a tile group, so we 5874138f9ebbSDave Airlie * have a common identifier for all tiles in a monitor group. 5875138f9ebbSDave Airlie */ 5876138f9ebbSDave Airlie static void drm_tile_group_free(struct kref *kref) 5877138f9ebbSDave Airlie { 5878138f9ebbSDave Airlie struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); 5879138f9ebbSDave Airlie struct drm_device *dev = tg->dev; 5880138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5881138f9ebbSDave Airlie idr_remove(&dev->mode_config.tile_idr, tg->id); 5882138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5883138f9ebbSDave Airlie kfree(tg); 5884138f9ebbSDave Airlie } 5885138f9ebbSDave Airlie 5886138f9ebbSDave Airlie /** 5887138f9ebbSDave Airlie * drm_mode_put_tile_group - drop a reference to a tile group. 5888138f9ebbSDave Airlie * @dev: DRM device 5889138f9ebbSDave Airlie * @tg: tile group to drop reference to. 5890138f9ebbSDave Airlie * 5891138f9ebbSDave Airlie * drop reference to tile group and free if 0. 5892138f9ebbSDave Airlie */ 5893138f9ebbSDave Airlie void drm_mode_put_tile_group(struct drm_device *dev, 5894138f9ebbSDave Airlie struct drm_tile_group *tg) 5895138f9ebbSDave Airlie { 5896138f9ebbSDave Airlie kref_put(&tg->refcount, drm_tile_group_free); 5897138f9ebbSDave Airlie } 5898138f9ebbSDave Airlie 5899138f9ebbSDave Airlie /** 5900138f9ebbSDave Airlie * drm_mode_get_tile_group - get a reference to an existing tile group 5901138f9ebbSDave Airlie * @dev: DRM device 5902138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 5903138f9ebbSDave Airlie * 5904138f9ebbSDave Airlie * Use the unique bytes to get a reference to an existing tile group. 5905138f9ebbSDave Airlie * 5906138f9ebbSDave Airlie * RETURNS: 5907138f9ebbSDave Airlie * tile group or NULL if not found. 5908138f9ebbSDave Airlie */ 5909138f9ebbSDave Airlie struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, 5910138f9ebbSDave Airlie char topology[8]) 5911138f9ebbSDave Airlie { 5912138f9ebbSDave Airlie struct drm_tile_group *tg; 5913138f9ebbSDave Airlie int id; 5914138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5915138f9ebbSDave Airlie idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { 5916138f9ebbSDave Airlie if (!memcmp(tg->group_data, topology, 8)) { 5917138f9ebbSDave Airlie if (!kref_get_unless_zero(&tg->refcount)) 5918138f9ebbSDave Airlie tg = NULL; 5919138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5920138f9ebbSDave Airlie return tg; 5921138f9ebbSDave Airlie } 5922138f9ebbSDave Airlie } 5923138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5924138f9ebbSDave Airlie return NULL; 5925138f9ebbSDave Airlie } 592681ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_get_tile_group); 5927138f9ebbSDave Airlie 5928138f9ebbSDave Airlie /** 5929138f9ebbSDave Airlie * drm_mode_create_tile_group - create a tile group from a displayid description 5930138f9ebbSDave Airlie * @dev: DRM device 5931138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 5932138f9ebbSDave Airlie * 5933138f9ebbSDave Airlie * Create a tile group for the unique monitor, and get a unique 5934138f9ebbSDave Airlie * identifier for the tile group. 5935138f9ebbSDave Airlie * 5936138f9ebbSDave Airlie * RETURNS: 5937138f9ebbSDave Airlie * new tile group or error. 5938138f9ebbSDave Airlie */ 5939138f9ebbSDave Airlie struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, 5940138f9ebbSDave Airlie char topology[8]) 5941138f9ebbSDave Airlie { 5942138f9ebbSDave Airlie struct drm_tile_group *tg; 5943138f9ebbSDave Airlie int ret; 5944138f9ebbSDave Airlie 5945138f9ebbSDave Airlie tg = kzalloc(sizeof(*tg), GFP_KERNEL); 5946138f9ebbSDave Airlie if (!tg) 5947138f9ebbSDave Airlie return ERR_PTR(-ENOMEM); 5948138f9ebbSDave Airlie 5949138f9ebbSDave Airlie kref_init(&tg->refcount); 5950138f9ebbSDave Airlie memcpy(tg->group_data, topology, 8); 5951138f9ebbSDave Airlie tg->dev = dev; 5952138f9ebbSDave Airlie 5953138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5954138f9ebbSDave Airlie ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); 5955138f9ebbSDave Airlie if (ret >= 0) { 5956138f9ebbSDave Airlie tg->id = ret; 5957138f9ebbSDave Airlie } else { 5958138f9ebbSDave Airlie kfree(tg); 5959138f9ebbSDave Airlie tg = ERR_PTR(ret); 5960138f9ebbSDave Airlie } 5961138f9ebbSDave Airlie 5962138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5963138f9ebbSDave Airlie return tg; 5964138f9ebbSDave Airlie } 596581ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_create_tile_group); 5966