1f453ba04SDave Airlie /* 2f453ba04SDave Airlie * Copyright (c) 2006-2008 Intel Corporation 3f453ba04SDave Airlie * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> 4f453ba04SDave Airlie * Copyright (c) 2008 Red Hat Inc. 5f453ba04SDave Airlie * 6f453ba04SDave Airlie * DRM core CRTC related functions 7f453ba04SDave Airlie * 8f453ba04SDave Airlie * Permission to use, copy, modify, distribute, and sell this software and its 9f453ba04SDave Airlie * documentation for any purpose is hereby granted without fee, provided that 10f453ba04SDave Airlie * the above copyright notice appear in all copies and that both that copyright 11f453ba04SDave Airlie * notice and this permission notice appear in supporting documentation, and 12f453ba04SDave Airlie * that the name of the copyright holders not be used in advertising or 13f453ba04SDave Airlie * publicity pertaining to distribution of the software without specific, 14f453ba04SDave Airlie * written prior permission. The copyright holders make no representations 15f453ba04SDave Airlie * about the suitability of this software for any purpose. It is provided "as 16f453ba04SDave Airlie * is" without express or implied warranty. 17f453ba04SDave Airlie * 18f453ba04SDave Airlie * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 19f453ba04SDave Airlie * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 20f453ba04SDave Airlie * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 21f453ba04SDave Airlie * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 22f453ba04SDave Airlie * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 23f453ba04SDave Airlie * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 24f453ba04SDave Airlie * OF THIS SOFTWARE. 25f453ba04SDave Airlie * 26f453ba04SDave Airlie * Authors: 27f453ba04SDave Airlie * Keith Packard 28f453ba04SDave Airlie * Eric Anholt <eric@anholt.net> 29f453ba04SDave Airlie * Dave Airlie <airlied@linux.ie> 30f453ba04SDave Airlie * Jesse Barnes <jesse.barnes@intel.com> 31f453ba04SDave Airlie */ 326ba6d03eSVille Syrjälä #include <linux/ctype.h> 33f453ba04SDave Airlie #include <linux/list.h> 345a0e3ad6STejun Heo #include <linux/slab.h> 352d1a8a48SPaul Gortmaker #include <linux/export.h> 36760285e7SDavid Howells #include <drm/drmP.h> 37760285e7SDavid Howells #include <drm/drm_crtc.h> 38760285e7SDavid Howells #include <drm/drm_edid.h> 39760285e7SDavid Howells #include <drm/drm_fourcc.h> 4051fd371bSRob Clark #include <drm/drm_modeset_lock.h> 4188a48e29SRob Clark #include <drm/drm_atomic.h> 42f453ba04SDave Airlie 438bd441b2SDaniel Vetter #include "drm_crtc_internal.h" 4467d0ec4eSDaniel Vetter #include "drm_internal.h" 458bd441b2SDaniel Vetter 469a6f5130SChris Wilson static struct drm_framebuffer * 479a6f5130SChris Wilson internal_framebuffer_create(struct drm_device *dev, 481eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *r, 49c394c2b0SMatt Roper struct drm_file *file_priv); 50c394c2b0SMatt Roper 51f453ba04SDave Airlie /* Avoid boilerplate. I'm tired of typing. */ 52f453ba04SDave Airlie #define DRM_ENUM_NAME_FN(fnname, list) \ 53d20d3174SVille Syrjälä const char *fnname(int val) \ 54f453ba04SDave Airlie { \ 55f453ba04SDave Airlie int i; \ 56f453ba04SDave Airlie for (i = 0; i < ARRAY_SIZE(list); i++) { \ 57f453ba04SDave Airlie if (list[i].type == val) \ 58f453ba04SDave Airlie return list[i].name; \ 59f453ba04SDave Airlie } \ 60f453ba04SDave Airlie return "(unknown)"; \ 61f453ba04SDave Airlie } 62f453ba04SDave Airlie 63f453ba04SDave Airlie /* 64f453ba04SDave Airlie * Global properties 65f453ba04SDave Airlie */ 664dfd909fSThierry Reding static const struct drm_prop_enum_list drm_dpms_enum_list[] = { 674dfd909fSThierry Reding { DRM_MODE_DPMS_ON, "On" }, 68f453ba04SDave Airlie { DRM_MODE_DPMS_STANDBY, "Standby" }, 69f453ba04SDave Airlie { DRM_MODE_DPMS_SUSPEND, "Suspend" }, 70f453ba04SDave Airlie { DRM_MODE_DPMS_OFF, "Off" } 71f453ba04SDave Airlie }; 72f453ba04SDave Airlie 73f453ba04SDave Airlie DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) 74f453ba04SDave Airlie 754dfd909fSThierry Reding static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { 769922ab5aSRob Clark { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, 779922ab5aSRob Clark { DRM_PLANE_TYPE_PRIMARY, "Primary" }, 789922ab5aSRob Clark { DRM_PLANE_TYPE_CURSOR, "Cursor" }, 799922ab5aSRob Clark }; 809922ab5aSRob Clark 81f453ba04SDave Airlie /* 82f453ba04SDave Airlie * Optional properties 83f453ba04SDave Airlie */ 844dfd909fSThierry Reding static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { 8553bd8389SJesse Barnes { DRM_MODE_SCALE_NONE, "None" }, 8653bd8389SJesse Barnes { DRM_MODE_SCALE_FULLSCREEN, "Full" }, 8753bd8389SJesse Barnes { DRM_MODE_SCALE_CENTER, "Center" }, 8853bd8389SJesse Barnes { DRM_MODE_SCALE_ASPECT, "Full aspect" }, 89f453ba04SDave Airlie }; 90f453ba04SDave Airlie 91ff587e45SVandana Kannan static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { 92ff587e45SVandana Kannan { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, 93ff587e45SVandana Kannan { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, 94ff587e45SVandana Kannan { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, 95ff587e45SVandana Kannan }; 96ff587e45SVandana Kannan 97f453ba04SDave Airlie /* 98f453ba04SDave Airlie * Non-global properties, but "required" for certain connectors. 99f453ba04SDave Airlie */ 1004dfd909fSThierry Reding static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { 101f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 102f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 103f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 104f453ba04SDave Airlie }; 105f453ba04SDave Airlie 106f453ba04SDave Airlie DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) 107f453ba04SDave Airlie 1084dfd909fSThierry Reding static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { 109f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 110f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 111f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 112f453ba04SDave Airlie }; 113f453ba04SDave Airlie 114f453ba04SDave Airlie DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, 115f453ba04SDave Airlie drm_dvi_i_subconnector_enum_list) 116f453ba04SDave Airlie 1174dfd909fSThierry Reding static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { 118f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 119f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 120f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 121f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 122aeaa1ad3SFrancisco Jerez { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 123f453ba04SDave Airlie }; 124f453ba04SDave Airlie 125f453ba04SDave Airlie DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) 126f453ba04SDave Airlie 1274dfd909fSThierry Reding static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { 128f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 129f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 130f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 131f453ba04SDave Airlie { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 132aeaa1ad3SFrancisco Jerez { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 133f453ba04SDave Airlie }; 134f453ba04SDave Airlie 135f453ba04SDave Airlie DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, 136f453ba04SDave Airlie drm_tv_subconnector_enum_list) 137f453ba04SDave Airlie 138d20d3174SVille Syrjälä static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { 139884840aaSJakob Bornecrantz { DRM_MODE_DIRTY_OFF, "Off" }, 140884840aaSJakob Bornecrantz { DRM_MODE_DIRTY_ON, "On" }, 141884840aaSJakob Bornecrantz { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, 142884840aaSJakob Bornecrantz }; 143884840aaSJakob Bornecrantz 144f453ba04SDave Airlie struct drm_conn_prop_enum_list { 145f453ba04SDave Airlie int type; 146d20d3174SVille Syrjälä const char *name; 147b21e3afeSIlia Mirkin struct ida ida; 148f453ba04SDave Airlie }; 149f453ba04SDave Airlie 150f453ba04SDave Airlie /* 151f453ba04SDave Airlie * Connector and encoder types. 152f453ba04SDave Airlie */ 1534dfd909fSThierry Reding static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { 1544dfd909fSThierry Reding { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, 155b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_VGA, "VGA" }, 156b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, 157b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, 158b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, 159b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_Composite, "Composite" }, 160b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, 161b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, 162b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_Component, "Component" }, 163b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, 164b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, 165b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, 166b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, 167b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_TV, "TV" }, 168b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_eDP, "eDP" }, 169b21e3afeSIlia Mirkin { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, 170b8923273SShobhit Kumar { DRM_MODE_CONNECTOR_DSI, "DSI" }, 1710b27c02aSEric Anholt { DRM_MODE_CONNECTOR_DPI, "DPI" }, 172f453ba04SDave Airlie }; 173f453ba04SDave Airlie 1744dfd909fSThierry Reding static const struct drm_prop_enum_list drm_encoder_enum_list[] = { 1754dfd909fSThierry Reding { DRM_MODE_ENCODER_NONE, "None" }, 176f453ba04SDave Airlie { DRM_MODE_ENCODER_DAC, "DAC" }, 177f453ba04SDave Airlie { DRM_MODE_ENCODER_TMDS, "TMDS" }, 178f453ba04SDave Airlie { DRM_MODE_ENCODER_LVDS, "LVDS" }, 179f453ba04SDave Airlie { DRM_MODE_ENCODER_TVDAC, "TV" }, 180a7331e5cSThomas Hellstrom { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, 181b8923273SShobhit Kumar { DRM_MODE_ENCODER_DSI, "DSI" }, 182182407a6SDave Airlie { DRM_MODE_ENCODER_DPMST, "DP MST" }, 1830b27c02aSEric Anholt { DRM_MODE_ENCODER_DPI, "DPI" }, 184f453ba04SDave Airlie }; 185f453ba04SDave Airlie 1864dfd909fSThierry Reding static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { 187ac1bb36cSJesse Barnes { SubPixelUnknown, "Unknown" }, 188ac1bb36cSJesse Barnes { SubPixelHorizontalRGB, "Horizontal RGB" }, 189ac1bb36cSJesse Barnes { SubPixelHorizontalBGR, "Horizontal BGR" }, 190ac1bb36cSJesse Barnes { SubPixelVerticalRGB, "Vertical RGB" }, 191ac1bb36cSJesse Barnes { SubPixelVerticalBGR, "Vertical BGR" }, 192ac1bb36cSJesse Barnes { SubPixelNone, "None" }, 193ac1bb36cSJesse Barnes }; 194ac1bb36cSJesse Barnes 195b21e3afeSIlia Mirkin void drm_connector_ida_init(void) 196b21e3afeSIlia Mirkin { 197b21e3afeSIlia Mirkin int i; 198b21e3afeSIlia Mirkin 199b21e3afeSIlia Mirkin for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) 200b21e3afeSIlia Mirkin ida_init(&drm_connector_enum_list[i].ida); 201b21e3afeSIlia Mirkin } 202b21e3afeSIlia Mirkin 203b21e3afeSIlia Mirkin void drm_connector_ida_destroy(void) 204b21e3afeSIlia Mirkin { 205b21e3afeSIlia Mirkin int i; 206b21e3afeSIlia Mirkin 207b21e3afeSIlia Mirkin for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) 208b21e3afeSIlia Mirkin ida_destroy(&drm_connector_enum_list[i].ida); 209b21e3afeSIlia Mirkin } 210b21e3afeSIlia Mirkin 211c8e32cc1SDaniel Vetter /** 212c8e32cc1SDaniel Vetter * drm_get_connector_status_name - return a string for connector status 213c8e32cc1SDaniel Vetter * @status: connector status to compute name of 214c8e32cc1SDaniel Vetter * 215c8e32cc1SDaniel Vetter * In contrast to the other drm_get_*_name functions this one here returns a 216c8e32cc1SDaniel Vetter * const pointer and hence is threadsafe. 217c8e32cc1SDaniel Vetter */ 218d20d3174SVille Syrjälä const char *drm_get_connector_status_name(enum drm_connector_status status) 219f453ba04SDave Airlie { 220f453ba04SDave Airlie if (status == connector_status_connected) 221f453ba04SDave Airlie return "connected"; 222f453ba04SDave Airlie else if (status == connector_status_disconnected) 223f453ba04SDave Airlie return "disconnected"; 224f453ba04SDave Airlie else 225f453ba04SDave Airlie return "unknown"; 226f453ba04SDave Airlie } 227ed7951dcSLespiau, Damien EXPORT_SYMBOL(drm_get_connector_status_name); 228f453ba04SDave Airlie 229ac1bb36cSJesse Barnes /** 230ac1bb36cSJesse Barnes * drm_get_subpixel_order_name - return a string for a given subpixel enum 231ac1bb36cSJesse Barnes * @order: enum of subpixel_order 232ac1bb36cSJesse Barnes * 233ac1bb36cSJesse Barnes * Note you could abuse this and return something out of bounds, but that 234ac1bb36cSJesse Barnes * would be a caller error. No unscrubbed user data should make it here. 235ac1bb36cSJesse Barnes */ 236ac1bb36cSJesse Barnes const char *drm_get_subpixel_order_name(enum subpixel_order order) 237ac1bb36cSJesse Barnes { 238ac1bb36cSJesse Barnes return drm_subpixel_enum_list[order].name; 239ac1bb36cSJesse Barnes } 240ac1bb36cSJesse Barnes EXPORT_SYMBOL(drm_get_subpixel_order_name); 241ac1bb36cSJesse Barnes 2422ee39452SDave Airlie /* 2432ee39452SDave Airlie * Internal function to assign a slot in the object idr and optionally 2442ee39452SDave Airlie * register the object into the idr. 2452ee39452SDave Airlie */ 2462ee39452SDave Airlie static int drm_mode_object_get_reg(struct drm_device *dev, 2472ee39452SDave Airlie struct drm_mode_object *obj, 2482ee39452SDave Airlie uint32_t obj_type, 249d0f37cf6SDave Airlie bool register_obj, 250d0f37cf6SDave Airlie void (*obj_free_cb)(struct kref *kref)) 2512ee39452SDave Airlie { 2522ee39452SDave Airlie int ret; 2532ee39452SDave Airlie 2542ee39452SDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 2552ee39452SDave Airlie ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); 2562ee39452SDave Airlie if (ret >= 0) { 2572ee39452SDave Airlie /* 2582ee39452SDave Airlie * Set up the object linking under the protection of the idr 2592ee39452SDave Airlie * lock so that other users can't see inconsistent state. 2602ee39452SDave Airlie */ 2612ee39452SDave Airlie obj->id = ret; 2622ee39452SDave Airlie obj->type = obj_type; 263d0f37cf6SDave Airlie if (obj_free_cb) { 264d0f37cf6SDave Airlie obj->free_cb = obj_free_cb; 265d0f37cf6SDave Airlie kref_init(&obj->refcount); 266d0f37cf6SDave Airlie } 2672ee39452SDave Airlie } 2682ee39452SDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 2692ee39452SDave Airlie 2702ee39452SDave Airlie return ret < 0 ? ret : 0; 2712ee39452SDave Airlie } 2722ee39452SDave Airlie 273f453ba04SDave Airlie /** 274065a50edSDaniel Vetter * drm_mode_object_get - allocate a new modeset identifier 275f453ba04SDave Airlie * @dev: DRM device 276065a50edSDaniel Vetter * @obj: object pointer, used to generate unique ID 277065a50edSDaniel Vetter * @obj_type: object type 278f453ba04SDave Airlie * 279f453ba04SDave Airlie * Create a unique identifier based on @ptr in @dev's identifier space. Used 280c8e32cc1SDaniel Vetter * for tracking modes, CRTCs and connectors. Note that despite the _get postfix 281c8e32cc1SDaniel Vetter * modeset identifiers are _not_ reference counted. Hence don't use this for 282c8e32cc1SDaniel Vetter * reference counted modeset objects like framebuffers. 283f453ba04SDave Airlie * 284c8e32cc1SDaniel Vetter * Returns: 2853c67d839SLukas Wunner * Zero on success, error code on failure. 286f453ba04SDave Airlie */ 2878bd441b2SDaniel Vetter int drm_mode_object_get(struct drm_device *dev, 288f453ba04SDave Airlie struct drm_mode_object *obj, uint32_t obj_type) 289f453ba04SDave Airlie { 290d0f37cf6SDave Airlie return drm_mode_object_get_reg(dev, obj, obj_type, true, NULL); 2914b096ac1SDaniel Vetter } 2924b096ac1SDaniel Vetter 2932ee39452SDave Airlie static void drm_mode_object_register(struct drm_device *dev, 2942ee39452SDave Airlie struct drm_mode_object *obj) 2952ee39452SDave Airlie { 2962ee39452SDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 2972ee39452SDave Airlie idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); 2982ee39452SDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 299f453ba04SDave Airlie } 300f453ba04SDave Airlie 301f453ba04SDave Airlie /** 3027c8f6d25SDave Airlie * drm_mode_object_unregister - free a modeset identifer 303f453ba04SDave Airlie * @dev: DRM device 304065a50edSDaniel Vetter * @object: object to free 305f453ba04SDave Airlie * 3067c8f6d25SDave Airlie * Free @id from @dev's unique identifier pool. 3077c8f6d25SDave Airlie * This function can be called multiple times, and guards against 3087c8f6d25SDave Airlie * multiple removals. 3097c8f6d25SDave Airlie * These modeset identifiers are _not_ reference counted. Hence don't use this 310c8e32cc1SDaniel Vetter * for reference counted modeset objects like framebuffers. 311f453ba04SDave Airlie */ 3127c8f6d25SDave Airlie void drm_mode_object_unregister(struct drm_device *dev, 313f453ba04SDave Airlie struct drm_mode_object *object) 314f453ba04SDave Airlie { 315ad2563c2SJesse Barnes mutex_lock(&dev->mode_config.idr_mutex); 3167c8f6d25SDave Airlie if (object->id) { 317f453ba04SDave Airlie idr_remove(&dev->mode_config.crtc_idr, object->id); 3187c8f6d25SDave Airlie object->id = 0; 3197c8f6d25SDave Airlie } 320ad2563c2SJesse Barnes mutex_unlock(&dev->mode_config.idr_mutex); 321f453ba04SDave Airlie } 322f453ba04SDave Airlie 32398f75de4SRob Clark static struct drm_mode_object *_object_find(struct drm_device *dev, 32498f75de4SRob Clark uint32_t id, uint32_t type) 32598f75de4SRob Clark { 32698f75de4SRob Clark struct drm_mode_object *obj = NULL; 32798f75de4SRob Clark 32898f75de4SRob Clark mutex_lock(&dev->mode_config.idr_mutex); 32998f75de4SRob Clark obj = idr_find(&dev->mode_config.crtc_idr, id); 330168c02ecSDaniel Vetter if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) 331168c02ecSDaniel Vetter obj = NULL; 332168c02ecSDaniel Vetter if (obj && obj->id != id) 333168c02ecSDaniel Vetter obj = NULL; 33472fe90b8SDave Airlie 33572fe90b8SDave Airlie if (obj && obj->free_cb) { 33672fe90b8SDave Airlie if (!kref_get_unless_zero(&obj->refcount)) 33772fe90b8SDave Airlie obj = NULL; 33872fe90b8SDave Airlie } 33998f75de4SRob Clark mutex_unlock(&dev->mode_config.idr_mutex); 34098f75de4SRob Clark 34198f75de4SRob Clark return obj; 34298f75de4SRob Clark } 34398f75de4SRob Clark 344786b99edSDaniel Vetter /** 345786b99edSDaniel Vetter * drm_mode_object_find - look up a drm object with static lifetime 346786b99edSDaniel Vetter * @dev: drm device 347786b99edSDaniel Vetter * @id: id of the mode object 348786b99edSDaniel Vetter * @type: type of the mode object 349786b99edSDaniel Vetter * 35005981422SDaniel Vetter * This function is used to look up a modeset object. It will acquire a 35105981422SDaniel Vetter * reference for reference counted objects. This reference must be dropped again 35205981422SDaniel Vetter * by callind drm_mode_object_unreference(). 353786b99edSDaniel Vetter */ 3547a9c9060SDaniel Vetter struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 3557a9c9060SDaniel Vetter uint32_t id, uint32_t type) 356f453ba04SDave Airlie { 357ad2563c2SJesse Barnes struct drm_mode_object *obj = NULL; 358f453ba04SDave Airlie 35998f75de4SRob Clark obj = _object_find(dev, id, type); 360f453ba04SDave Airlie return obj; 361f453ba04SDave Airlie } 362f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_object_find); 363f453ba04SDave Airlie 36405981422SDaniel Vetter /** 36505981422SDaniel Vetter * drm_mode_object_unreference - decr the object refcnt 36605981422SDaniel Vetter * @obj: mode_object 36705981422SDaniel Vetter * 36805981422SDaniel Vetter * This functions decrements the object's refcount if it is a refcounted modeset 36905981422SDaniel Vetter * object. It is a no-op on any other object. This is used to drop references 37005981422SDaniel Vetter * acquired with drm_mode_object_reference(). 37105981422SDaniel Vetter */ 372d0f37cf6SDave Airlie void drm_mode_object_unreference(struct drm_mode_object *obj) 373d0f37cf6SDave Airlie { 374d0f37cf6SDave Airlie if (obj->free_cb) { 375d0f37cf6SDave Airlie DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); 376d0f37cf6SDave Airlie kref_put(&obj->refcount, obj->free_cb); 377d0f37cf6SDave Airlie } 378d0f37cf6SDave Airlie } 379d0f37cf6SDave Airlie EXPORT_SYMBOL(drm_mode_object_unreference); 380d0f37cf6SDave Airlie 381d0f37cf6SDave Airlie /** 38205981422SDaniel Vetter * drm_mode_object_reference - incr the object refcnt 383d0f37cf6SDave Airlie * @obj: mode_object 384d0f37cf6SDave Airlie * 38505981422SDaniel Vetter * This functions increments the object's refcount if it is a refcounted modeset 38605981422SDaniel Vetter * object. It is a no-op on any other object. References should be dropped again 38705981422SDaniel Vetter * by calling drm_mode_object_unreference(). 388d0f37cf6SDave Airlie */ 389d0f37cf6SDave Airlie void drm_mode_object_reference(struct drm_mode_object *obj) 390d0f37cf6SDave Airlie { 391d0f37cf6SDave Airlie if (obj->free_cb) { 392d0f37cf6SDave Airlie DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); 393d0f37cf6SDave Airlie kref_get(&obj->refcount); 394d0f37cf6SDave Airlie } 395d0f37cf6SDave Airlie } 396d0f37cf6SDave Airlie EXPORT_SYMBOL(drm_mode_object_reference); 397d0f37cf6SDave Airlie 398f55f1f91SDave Airlie static void drm_framebuffer_free(struct kref *kref) 399f55f1f91SDave Airlie { 400f55f1f91SDave Airlie struct drm_framebuffer *fb = 401d0f37cf6SDave Airlie container_of(kref, struct drm_framebuffer, base.refcount); 402f55f1f91SDave Airlie struct drm_device *dev = fb->dev; 403f55f1f91SDave Airlie 404f55f1f91SDave Airlie /* 405f55f1f91SDave Airlie * The lookup idr holds a weak reference, which has not necessarily been 406f55f1f91SDave Airlie * removed at this point. Check for that. 407f55f1f91SDave Airlie */ 40819ab3f8bSDave Airlie drm_mode_object_unregister(dev, &fb->base); 409f55f1f91SDave Airlie 410f55f1f91SDave Airlie fb->funcs->destroy(fb); 411f55f1f91SDave Airlie } 412f55f1f91SDave Airlie 413f453ba04SDave Airlie /** 414f453ba04SDave Airlie * drm_framebuffer_init - initialize a framebuffer 415f453ba04SDave Airlie * @dev: DRM device 416065a50edSDaniel Vetter * @fb: framebuffer to be initialized 417065a50edSDaniel Vetter * @funcs: ... with these functions 418f453ba04SDave Airlie * 419f453ba04SDave Airlie * Allocates an ID for the framebuffer's parent mode object, sets its mode 420f453ba04SDave Airlie * functions & device file and adds it to the master fd list. 421f453ba04SDave Airlie * 4224b096ac1SDaniel Vetter * IMPORTANT: 4234b096ac1SDaniel Vetter * This functions publishes the fb and makes it available for concurrent access 4244b096ac1SDaniel Vetter * by other users. Which means by this point the fb _must_ be fully set up - 4254b096ac1SDaniel Vetter * since all the fb attributes are invariant over its lifetime, no further 4264b096ac1SDaniel Vetter * locking but only correct reference counting is required. 4274b096ac1SDaniel Vetter * 428c8e32cc1SDaniel Vetter * Returns: 429af901ca1SAndré Goddard Rosa * Zero on success, error code on failure. 430f453ba04SDave Airlie */ 431f453ba04SDave Airlie int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, 432f453ba04SDave Airlie const struct drm_framebuffer_funcs *funcs) 433f453ba04SDave Airlie { 434f453ba04SDave Airlie int ret; 435f453ba04SDave Airlie 4364b096ac1SDaniel Vetter INIT_LIST_HEAD(&fb->filp_head); 4374b096ac1SDaniel Vetter fb->dev = dev; 4384b096ac1SDaniel Vetter fb->funcs = funcs; 439f7eff60eSRob Clark 440d0f37cf6SDave Airlie ret = drm_mode_object_get_reg(dev, &fb->base, DRM_MODE_OBJECT_FB, 4419cd47424SDave Airlie false, drm_framebuffer_free); 4426bfc56aaSVille Syrjälä if (ret) 4434b096ac1SDaniel Vetter goto out; 444f453ba04SDave Airlie 4459cd47424SDave Airlie mutex_lock(&dev->mode_config.fb_lock); 446f453ba04SDave Airlie dev->mode_config.num_fb++; 447f453ba04SDave Airlie list_add(&fb->head, &dev->mode_config.fb_list); 4482ddea3fdSDave Airlie mutex_unlock(&dev->mode_config.fb_lock); 449f453ba04SDave Airlie 4509cd47424SDave Airlie drm_mode_object_register(dev, &fb->base); 4519cd47424SDave Airlie out: 4523c67d839SLukas Wunner return ret; 453f453ba04SDave Airlie } 454f453ba04SDave Airlie EXPORT_SYMBOL(drm_framebuffer_init); 455f453ba04SDave Airlie 456f7eff60eSRob Clark /** 457786b99edSDaniel Vetter * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference 458786b99edSDaniel Vetter * @dev: drm device 459786b99edSDaniel Vetter * @id: id of the fb object 460786b99edSDaniel Vetter * 461786b99edSDaniel Vetter * If successful, this grabs an additional reference to the framebuffer - 462786b99edSDaniel Vetter * callers need to make sure to eventually unreference the returned framebuffer 463c8e32cc1SDaniel Vetter * again, using @drm_framebuffer_unreference. 464786b99edSDaniel Vetter */ 465786b99edSDaniel Vetter struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, 466786b99edSDaniel Vetter uint32_t id) 467786b99edSDaniel Vetter { 468cee26ac4SDave Airlie struct drm_mode_object *obj; 469cee26ac4SDave Airlie struct drm_framebuffer *fb = NULL; 470786b99edSDaniel Vetter 471cee26ac4SDave Airlie obj = _object_find(dev, id, DRM_MODE_OBJECT_FB); 47272fe90b8SDave Airlie if (obj) 473cee26ac4SDave Airlie fb = obj_to_fb(obj); 474786b99edSDaniel Vetter return fb; 475786b99edSDaniel Vetter } 476786b99edSDaniel Vetter EXPORT_SYMBOL(drm_framebuffer_lookup); 477786b99edSDaniel Vetter 478786b99edSDaniel Vetter /** 47936206361SDaniel Vetter * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr 48036206361SDaniel Vetter * @fb: fb to unregister 48136206361SDaniel Vetter * 48236206361SDaniel Vetter * Drivers need to call this when cleaning up driver-private framebuffers, e.g. 48336206361SDaniel Vetter * those used for fbdev. Note that the caller must hold a reference of it's own, 48436206361SDaniel Vetter * i.e. the object may not be destroyed through this call (since it'll lead to a 48536206361SDaniel Vetter * locking inversion). 48636206361SDaniel Vetter */ 48736206361SDaniel Vetter void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) 48836206361SDaniel Vetter { 489a39a357cSDaniel Vetter struct drm_device *dev; 490a39a357cSDaniel Vetter 491a39a357cSDaniel Vetter if (!fb) 492a39a357cSDaniel Vetter return; 493a39a357cSDaniel Vetter 494a39a357cSDaniel Vetter dev = fb->dev; 4952b677e8cSDaniel Vetter 4962b677e8cSDaniel Vetter /* Mark fb as reaped and drop idr ref. */ 49719ab3f8bSDave Airlie drm_mode_object_unregister(dev, &fb->base); 49836206361SDaniel Vetter } 49936206361SDaniel Vetter EXPORT_SYMBOL(drm_framebuffer_unregister_private); 50036206361SDaniel Vetter 50136206361SDaniel Vetter /** 502f453ba04SDave Airlie * drm_framebuffer_cleanup - remove a framebuffer object 503f453ba04SDave Airlie * @fb: framebuffer to remove 504f453ba04SDave Airlie * 505c8e32cc1SDaniel Vetter * Cleanup framebuffer. This function is intended to be used from the drivers 506c8e32cc1SDaniel Vetter * ->destroy callback. It can also be used to clean up driver private 507c8e32cc1SDaniel Vetter * framebuffers embedded into a larger structure. 50836206361SDaniel Vetter * 50936206361SDaniel Vetter * Note that this function does not remove the fb from active usuage - if it is 51036206361SDaniel Vetter * still used anywhere, hilarity can ensue since userspace could call getfb on 51136206361SDaniel Vetter * the id and get back -EINVAL. Obviously no concern at driver unload time. 51236206361SDaniel Vetter * 51336206361SDaniel Vetter * Also, the framebuffer will not be removed from the lookup idr - for 51436206361SDaniel Vetter * user-created framebuffers this will happen in in the rmfb ioctl. For 51536206361SDaniel Vetter * driver-private objects (e.g. for fbdev) drivers need to explicitly call 51636206361SDaniel Vetter * drm_framebuffer_unregister_private. 517f453ba04SDave Airlie */ 518f453ba04SDave Airlie void drm_framebuffer_cleanup(struct drm_framebuffer *fb) 519f453ba04SDave Airlie { 520f453ba04SDave Airlie struct drm_device *dev = fb->dev; 5218faf6b18SDaniel Vetter 5224b096ac1SDaniel Vetter mutex_lock(&dev->mode_config.fb_lock); 523f7eff60eSRob Clark list_del(&fb->head); 524f7eff60eSRob Clark dev->mode_config.num_fb--; 5254b096ac1SDaniel Vetter mutex_unlock(&dev->mode_config.fb_lock); 526f7eff60eSRob Clark } 527f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_cleanup); 528f7eff60eSRob Clark 529f7eff60eSRob Clark /** 530f7eff60eSRob Clark * drm_framebuffer_remove - remove and unreference a framebuffer object 531f7eff60eSRob Clark * @fb: framebuffer to remove 532f7eff60eSRob Clark * 533f7eff60eSRob Clark * Scans all the CRTCs and planes in @dev's mode_config. If they're 53436206361SDaniel Vetter * using @fb, removes it, setting it to NULL. Then drops the reference to the 535b62584e3SDaniel Vetter * passed-in framebuffer. Might take the modeset locks. 536b62584e3SDaniel Vetter * 537b62584e3SDaniel Vetter * Note that this function optimizes the cleanup away if the caller holds the 538b62584e3SDaniel Vetter * last reference to the framebuffer. It is also guaranteed to not take the 539b62584e3SDaniel Vetter * modeset locks in this case. 540f7eff60eSRob Clark */ 541f7eff60eSRob Clark void drm_framebuffer_remove(struct drm_framebuffer *fb) 542f7eff60eSRob Clark { 543a39a357cSDaniel Vetter struct drm_device *dev; 544f453ba04SDave Airlie struct drm_crtc *crtc; 5458cf5c917SJesse Barnes struct drm_plane *plane; 5465ef5f72fSDave Airlie struct drm_mode_set set; 5475ef5f72fSDave Airlie int ret; 548f453ba04SDave Airlie 549a39a357cSDaniel Vetter if (!fb) 550a39a357cSDaniel Vetter return; 551a39a357cSDaniel Vetter 552a39a357cSDaniel Vetter dev = fb->dev; 553a39a357cSDaniel Vetter 5544b096ac1SDaniel Vetter WARN_ON(!list_empty(&fb->filp_head)); 5558faf6b18SDaniel Vetter 556b62584e3SDaniel Vetter /* 557b62584e3SDaniel Vetter * drm ABI mandates that we remove any deleted framebuffers from active 558b62584e3SDaniel Vetter * useage. But since most sane clients only remove framebuffers they no 559b62584e3SDaniel Vetter * longer need, try to optimize this away. 560b62584e3SDaniel Vetter * 561b62584e3SDaniel Vetter * Since we're holding a reference ourselves, observing a refcount of 1 562b62584e3SDaniel Vetter * means that we're the last holder and can skip it. Also, the refcount 563b62584e3SDaniel Vetter * can never increase from 1 again, so we don't need any barriers or 564b62584e3SDaniel Vetter * locks. 565b62584e3SDaniel Vetter * 566b62584e3SDaniel Vetter * Note that userspace could try to race with use and instate a new 567b62584e3SDaniel Vetter * usage _after_ we've cleared all current ones. End result will be an 568b62584e3SDaniel Vetter * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot 569b62584e3SDaniel Vetter * in this manner. 570b62584e3SDaniel Vetter */ 571747a598fSDave Airlie if (drm_framebuffer_read_refcount(fb) > 1) { 572b62584e3SDaniel Vetter drm_modeset_lock_all(dev); 573f453ba04SDave Airlie /* remove from any CRTC */ 5746295d607SDaniel Vetter drm_for_each_crtc(crtc, dev) { 575f4510a27SMatt Roper if (crtc->primary->fb == fb) { 5765ef5f72fSDave Airlie /* should turn off the crtc */ 5775ef5f72fSDave Airlie memset(&set, 0, sizeof(struct drm_mode_set)); 5785ef5f72fSDave Airlie set.crtc = crtc; 5795ef5f72fSDave Airlie set.fb = NULL; 5802d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 5815ef5f72fSDave Airlie if (ret) 5825ef5f72fSDave Airlie DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); 5835ef5f72fSDave Airlie } 584f453ba04SDave Airlie } 585f453ba04SDave Airlie 5866295d607SDaniel Vetter drm_for_each_plane(plane, dev) { 5879125e618SVille Syrjälä if (plane->fb == fb) 5889125e618SVille Syrjälä drm_plane_force_disable(plane); 5898cf5c917SJesse Barnes } 590b62584e3SDaniel Vetter drm_modeset_unlock_all(dev); 591b62584e3SDaniel Vetter } 5928cf5c917SJesse Barnes 593f7eff60eSRob Clark drm_framebuffer_unreference(fb); 594f453ba04SDave Airlie } 595f7eff60eSRob Clark EXPORT_SYMBOL(drm_framebuffer_remove); 596f453ba04SDave Airlie 59751fd371bSRob Clark DEFINE_WW_CLASS(crtc_ww_class); 59851fd371bSRob Clark 599fa3ab4c2SVille Syrjälä static unsigned int drm_num_crtcs(struct drm_device *dev) 600fa3ab4c2SVille Syrjälä { 601fa3ab4c2SVille Syrjälä unsigned int num = 0; 602fa3ab4c2SVille Syrjälä struct drm_crtc *tmp; 603fa3ab4c2SVille Syrjälä 604fa3ab4c2SVille Syrjälä drm_for_each_crtc(tmp, dev) { 605fa3ab4c2SVille Syrjälä num++; 606fa3ab4c2SVille Syrjälä } 607fa3ab4c2SVille Syrjälä 608fa3ab4c2SVille Syrjälä return num; 609fa3ab4c2SVille Syrjälä } 610fa3ab4c2SVille Syrjälä 611f453ba04SDave Airlie /** 612e13161afSMatt Roper * drm_crtc_init_with_planes - Initialise a new CRTC object with 613e13161afSMatt Roper * specified primary and cursor planes. 614f453ba04SDave Airlie * @dev: DRM device 615f453ba04SDave Airlie * @crtc: CRTC object to init 616e13161afSMatt Roper * @primary: Primary plane for CRTC 617e13161afSMatt Roper * @cursor: Cursor plane for CRTC 618f453ba04SDave Airlie * @funcs: callbacks for the new CRTC 619f9882876SVille Syrjälä * @name: printf style format string for the CRTC name, or NULL for default name 620f453ba04SDave Airlie * 621ad6f5c34SVille Syrjälä * Inits a new object created as base part of a driver crtc object. 6226bfc56aaSVille Syrjälä * 623c8e32cc1SDaniel Vetter * Returns: 6246bfc56aaSVille Syrjälä * Zero on success, error code on failure. 625f453ba04SDave Airlie */ 626e13161afSMatt Roper int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, 627e13161afSMatt Roper struct drm_plane *primary, 628fc1d3e44SMatt Roper struct drm_plane *cursor, 629f9882876SVille Syrjälä const struct drm_crtc_funcs *funcs, 630f9882876SVille Syrjälä const char *name, ...) 631f453ba04SDave Airlie { 63251fd371bSRob Clark struct drm_mode_config *config = &dev->mode_config; 6336bfc56aaSVille Syrjälä int ret; 6346bfc56aaSVille Syrjälä 635522cf91fSBenjamin Gaignard WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); 636522cf91fSBenjamin Gaignard WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); 637522cf91fSBenjamin Gaignard 638f453ba04SDave Airlie crtc->dev = dev; 639f453ba04SDave Airlie crtc->funcs = funcs; 640f453ba04SDave Airlie 6413b24f7d6SDaniel Vetter INIT_LIST_HEAD(&crtc->commit_list); 6423b24f7d6SDaniel Vetter spin_lock_init(&crtc->commit_lock); 6433b24f7d6SDaniel Vetter 64451fd371bSRob Clark drm_modeset_lock_init(&crtc->mutex); 6456bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 6466bfc56aaSVille Syrjälä if (ret) 647baf698b0SDaniel Vetter return ret; 648f453ba04SDave Airlie 649fa3ab4c2SVille Syrjälä if (name) { 650fa3ab4c2SVille Syrjälä va_list ap; 651fa3ab4c2SVille Syrjälä 652fa3ab4c2SVille Syrjälä va_start(ap, name); 653fa3ab4c2SVille Syrjälä crtc->name = kvasprintf(GFP_KERNEL, name, ap); 654fa3ab4c2SVille Syrjälä va_end(ap); 655fa3ab4c2SVille Syrjälä } else { 656fa3ab4c2SVille Syrjälä crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", 657fa3ab4c2SVille Syrjälä drm_num_crtcs(dev)); 658fa3ab4c2SVille Syrjälä } 659fa3ab4c2SVille Syrjälä if (!crtc->name) { 6607c8f6d25SDave Airlie drm_mode_object_unregister(dev, &crtc->base); 661fa3ab4c2SVille Syrjälä return -ENOMEM; 662fa3ab4c2SVille Syrjälä } 663fa3ab4c2SVille Syrjälä 664bffd9de0SPaulo Zanoni crtc->base.properties = &crtc->properties; 665bffd9de0SPaulo Zanoni 66651fd371bSRob Clark list_add_tail(&crtc->head, &config->crtc_list); 667490d3d1bSChris Wilson crtc->index = config->num_crtc++; 6686bfc56aaSVille Syrjälä 669e13161afSMatt Roper crtc->primary = primary; 670fc1d3e44SMatt Roper crtc->cursor = cursor; 671e13161afSMatt Roper if (primary) 672e13161afSMatt Roper primary->possible_crtcs = 1 << drm_crtc_index(crtc); 673fc1d3e44SMatt Roper if (cursor) 674fc1d3e44SMatt Roper cursor->possible_crtcs = 1 << drm_crtc_index(crtc); 675e13161afSMatt Roper 676eab3bbefSDaniel Vetter if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 677eab3bbefSDaniel Vetter drm_object_attach_property(&crtc->base, config->prop_active, 0); 678955f3c33SDaniel Stone drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); 679eab3bbefSDaniel Vetter } 680eab3bbefSDaniel Vetter 681baf698b0SDaniel Vetter return 0; 682f453ba04SDave Airlie } 683e13161afSMatt Roper EXPORT_SYMBOL(drm_crtc_init_with_planes); 684f453ba04SDave Airlie 685f453ba04SDave Airlie /** 686ad6f5c34SVille Syrjälä * drm_crtc_cleanup - Clean up the core crtc usage 687f453ba04SDave Airlie * @crtc: CRTC to cleanup 688f453ba04SDave Airlie * 689ad6f5c34SVille Syrjälä * This function cleans up @crtc and removes it from the DRM mode setting 690ad6f5c34SVille Syrjälä * core. Note that the function does *not* free the crtc structure itself, 691ad6f5c34SVille Syrjälä * this is the responsibility of the caller. 692f453ba04SDave Airlie */ 693f453ba04SDave Airlie void drm_crtc_cleanup(struct drm_crtc *crtc) 694f453ba04SDave Airlie { 695f453ba04SDave Airlie struct drm_device *dev = crtc->dev; 696f453ba04SDave Airlie 697490d3d1bSChris Wilson /* Note that the crtc_list is considered to be static; should we 698490d3d1bSChris Wilson * remove the drm_crtc at runtime we would have to decrement all 699490d3d1bSChris Wilson * the indices on the drm_crtc after us in the crtc_list. 700490d3d1bSChris Wilson */ 701490d3d1bSChris Wilson 702f453ba04SDave Airlie kfree(crtc->gamma_store); 703f453ba04SDave Airlie crtc->gamma_store = NULL; 704f453ba04SDave Airlie 70551fd371bSRob Clark drm_modeset_lock_fini(&crtc->mutex); 70651fd371bSRob Clark 7077c8f6d25SDave Airlie drm_mode_object_unregister(dev, &crtc->base); 708f453ba04SDave Airlie list_del(&crtc->head); 709f453ba04SDave Airlie dev->mode_config.num_crtc--; 7103009c037SThierry Reding 7113009c037SThierry Reding WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); 7123009c037SThierry Reding if (crtc->state && crtc->funcs->atomic_destroy_state) 7133009c037SThierry Reding crtc->funcs->atomic_destroy_state(crtc, crtc->state); 714a18c0af1SThierry Reding 715fa3ab4c2SVille Syrjälä kfree(crtc->name); 716fa3ab4c2SVille Syrjälä 717a18c0af1SThierry Reding memset(crtc, 0, sizeof(*crtc)); 718f453ba04SDave Airlie } 719f453ba04SDave Airlie EXPORT_SYMBOL(drm_crtc_cleanup); 720f453ba04SDave Airlie 72186f422d5SLespiau, Damien /* 722f453ba04SDave Airlie * drm_mode_remove - remove and free a mode 723f453ba04SDave Airlie * @connector: connector list to modify 724f453ba04SDave Airlie * @mode: mode to remove 725f453ba04SDave Airlie * 726f453ba04SDave Airlie * Remove @mode from @connector's mode list, then free it. 727f453ba04SDave Airlie */ 72886f422d5SLespiau, Damien static void drm_mode_remove(struct drm_connector *connector, 729f453ba04SDave Airlie struct drm_display_mode *mode) 730f453ba04SDave Airlie { 731f453ba04SDave Airlie list_del(&mode->head); 732554f1d78SSascha Hauer drm_mode_destroy(connector->dev, mode); 733f453ba04SDave Airlie } 734f453ba04SDave Airlie 735f453ba04SDave Airlie /** 736b5571e9dSBoris Brezillon * drm_display_info_set_bus_formats - set the supported bus formats 737b5571e9dSBoris Brezillon * @info: display info to store bus formats in 738e37bfa1aSBoris Brezillon * @formats: array containing the supported bus formats 739e37bfa1aSBoris Brezillon * @num_formats: the number of entries in the fmts array 740b5571e9dSBoris Brezillon * 741b5571e9dSBoris Brezillon * Store the supported bus formats in display info structure. 742b5571e9dSBoris Brezillon * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for 743b5571e9dSBoris Brezillon * a full list of available formats. 744b5571e9dSBoris Brezillon */ 745b5571e9dSBoris Brezillon int drm_display_info_set_bus_formats(struct drm_display_info *info, 746b5571e9dSBoris Brezillon const u32 *formats, 747b5571e9dSBoris Brezillon unsigned int num_formats) 748b5571e9dSBoris Brezillon { 749b5571e9dSBoris Brezillon u32 *fmts = NULL; 750b5571e9dSBoris Brezillon 751b5571e9dSBoris Brezillon if (!formats && num_formats) 752b5571e9dSBoris Brezillon return -EINVAL; 753b5571e9dSBoris Brezillon 754b5571e9dSBoris Brezillon if (formats && num_formats) { 755b5571e9dSBoris Brezillon fmts = kmemdup(formats, sizeof(*formats) * num_formats, 756b5571e9dSBoris Brezillon GFP_KERNEL); 757944579c5SDan Carpenter if (!fmts) 758b5571e9dSBoris Brezillon return -ENOMEM; 759b5571e9dSBoris Brezillon } 760b5571e9dSBoris Brezillon 761b5571e9dSBoris Brezillon kfree(info->bus_formats); 762b5571e9dSBoris Brezillon info->bus_formats = fmts; 763b5571e9dSBoris Brezillon info->num_bus_formats = num_formats; 764b5571e9dSBoris Brezillon 765b5571e9dSBoris Brezillon return 0; 766b5571e9dSBoris Brezillon } 767b5571e9dSBoris Brezillon EXPORT_SYMBOL(drm_display_info_set_bus_formats); 768b5571e9dSBoris Brezillon 769b5571e9dSBoris Brezillon /** 770eaf99c74SChris Wilson * drm_connector_get_cmdline_mode - reads the user's cmdline mode 771eaf99c74SChris Wilson * @connector: connector to quwery 772eaf99c74SChris Wilson * 773eaf99c74SChris Wilson * The kernel supports per-connector configration of its consoles through 774eaf99c74SChris Wilson * use of the video= parameter. This function parses that option and 775eaf99c74SChris Wilson * extracts the user's specified mode (or enable/disable status) for a 776eaf99c74SChris Wilson * particular connector. This is typically only used during the early fbdev 777eaf99c74SChris Wilson * setup. 778eaf99c74SChris Wilson */ 779eaf99c74SChris Wilson static void drm_connector_get_cmdline_mode(struct drm_connector *connector) 780eaf99c74SChris Wilson { 781eaf99c74SChris Wilson struct drm_cmdline_mode *mode = &connector->cmdline_mode; 782eaf99c74SChris Wilson char *option = NULL; 783eaf99c74SChris Wilson 784eaf99c74SChris Wilson if (fb_get_options(connector->name, &option)) 785eaf99c74SChris Wilson return; 786eaf99c74SChris Wilson 787eaf99c74SChris Wilson if (!drm_mode_parse_command_line_for_connector(option, 788eaf99c74SChris Wilson connector, 789eaf99c74SChris Wilson mode)) 790eaf99c74SChris Wilson return; 791eaf99c74SChris Wilson 792eaf99c74SChris Wilson if (mode->force) { 793eaf99c74SChris Wilson const char *s; 794eaf99c74SChris Wilson 795eaf99c74SChris Wilson switch (mode->force) { 796eaf99c74SChris Wilson case DRM_FORCE_OFF: 797eaf99c74SChris Wilson s = "OFF"; 798eaf99c74SChris Wilson break; 799eaf99c74SChris Wilson case DRM_FORCE_ON_DIGITAL: 800eaf99c74SChris Wilson s = "ON - dig"; 801eaf99c74SChris Wilson break; 802eaf99c74SChris Wilson default: 803eaf99c74SChris Wilson case DRM_FORCE_ON: 804eaf99c74SChris Wilson s = "ON"; 805eaf99c74SChris Wilson break; 806eaf99c74SChris Wilson } 807eaf99c74SChris Wilson 808eaf99c74SChris Wilson DRM_INFO("forcing %s connector %s\n", connector->name, s); 809eaf99c74SChris Wilson connector->force = mode->force; 810eaf99c74SChris Wilson } 811eaf99c74SChris Wilson 812eaf99c74SChris Wilson DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", 813eaf99c74SChris Wilson connector->name, 814eaf99c74SChris Wilson mode->xres, mode->yres, 815eaf99c74SChris Wilson mode->refresh_specified ? mode->refresh : 60, 816eaf99c74SChris Wilson mode->rb ? " reduced blanking" : "", 817eaf99c74SChris Wilson mode->margins ? " with margins" : "", 818eaf99c74SChris Wilson mode->interlace ? " interlaced" : ""); 819eaf99c74SChris Wilson } 820eaf99c74SChris Wilson 821b164d31fSDave Airlie static void drm_connector_free(struct kref *kref) 822b164d31fSDave Airlie { 823b164d31fSDave Airlie struct drm_connector *connector = 824b164d31fSDave Airlie container_of(kref, struct drm_connector, base.refcount); 825b164d31fSDave Airlie struct drm_device *dev = connector->dev; 826b164d31fSDave Airlie 827b164d31fSDave Airlie drm_mode_object_unregister(dev, &connector->base); 828b164d31fSDave Airlie connector->funcs->destroy(connector); 829b164d31fSDave Airlie } 830b164d31fSDave Airlie 831eaf99c74SChris Wilson /** 832f453ba04SDave Airlie * drm_connector_init - Init a preallocated connector 833f453ba04SDave Airlie * @dev: DRM device 834f453ba04SDave Airlie * @connector: the connector to init 835f453ba04SDave Airlie * @funcs: callbacks for this connector 836065a50edSDaniel Vetter * @connector_type: user visible type of the connector 837f453ba04SDave Airlie * 838f453ba04SDave Airlie * Initialises a preallocated connector. Connectors should be 839f453ba04SDave Airlie * subclassed as part of driver connector objects. 8406bfc56aaSVille Syrjälä * 841c8e32cc1SDaniel Vetter * Returns: 8426bfc56aaSVille Syrjälä * Zero on success, error code on failure. 843f453ba04SDave Airlie */ 8446bfc56aaSVille Syrjälä int drm_connector_init(struct drm_device *dev, 845f453ba04SDave Airlie struct drm_connector *connector, 846f453ba04SDave Airlie const struct drm_connector_funcs *funcs, 847f453ba04SDave Airlie int connector_type) 848f453ba04SDave Airlie { 849ae16c597SRob Clark struct drm_mode_config *config = &dev->mode_config; 8506bfc56aaSVille Syrjälä int ret; 851b21e3afeSIlia Mirkin struct ida *connector_ida = 852b21e3afeSIlia Mirkin &drm_connector_enum_list[connector_type].ida; 8536bfc56aaSVille Syrjälä 85484849903SDaniel Vetter drm_modeset_lock_all(dev); 855f453ba04SDave Airlie 856b164d31fSDave Airlie ret = drm_mode_object_get_reg(dev, &connector->base, 857b164d31fSDave Airlie DRM_MODE_OBJECT_CONNECTOR, 858b164d31fSDave Airlie false, drm_connector_free); 8596bfc56aaSVille Syrjälä if (ret) 8602abdd313SJani Nikula goto out_unlock; 8616bfc56aaSVille Syrjälä 8627e3bdf4aSPaulo Zanoni connector->base.properties = &connector->properties; 863f453ba04SDave Airlie connector->dev = dev; 864f453ba04SDave Airlie connector->funcs = funcs; 8655fff80bbSMaarten Lankhorst 8665fff80bbSMaarten Lankhorst connector->connector_id = ida_simple_get(&config->connector_ida, 0, 0, GFP_KERNEL); 8675fff80bbSMaarten Lankhorst if (connector->connector_id < 0) { 8685fff80bbSMaarten Lankhorst ret = connector->connector_id; 8695fff80bbSMaarten Lankhorst goto out_put; 8705fff80bbSMaarten Lankhorst } 8715fff80bbSMaarten Lankhorst 872f453ba04SDave Airlie connector->connector_type = connector_type; 873f453ba04SDave Airlie connector->connector_type_id = 874b21e3afeSIlia Mirkin ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); 875b21e3afeSIlia Mirkin if (connector->connector_type_id < 0) { 876b21e3afeSIlia Mirkin ret = connector->connector_type_id; 8775fff80bbSMaarten Lankhorst goto out_put_id; 878b21e3afeSIlia Mirkin } 8792abdd313SJani Nikula connector->name = 8802abdd313SJani Nikula kasprintf(GFP_KERNEL, "%s-%d", 8812abdd313SJani Nikula drm_connector_enum_list[connector_type].name, 8822abdd313SJani Nikula connector->connector_type_id); 8832abdd313SJani Nikula if (!connector->name) { 8842abdd313SJani Nikula ret = -ENOMEM; 8855fff80bbSMaarten Lankhorst goto out_put_type_id; 8862abdd313SJani Nikula } 8872abdd313SJani Nikula 888f453ba04SDave Airlie INIT_LIST_HEAD(&connector->probed_modes); 889f453ba04SDave Airlie INIT_LIST_HEAD(&connector->modes); 890f453ba04SDave Airlie connector->edid_blob_ptr = NULL; 8915e2cb2f6SDaniel Vetter connector->status = connector_status_unknown; 892f453ba04SDave Airlie 893eaf99c74SChris Wilson drm_connector_get_cmdline_mode(connector); 894eaf99c74SChris Wilson 895c7eb76f4SDaniel Vetter /* We should add connectors at the end to avoid upsetting the connector 896c7eb76f4SDaniel Vetter * index too much. */ 897ae16c597SRob Clark list_add_tail(&connector->head, &config->connector_list); 898ae16c597SRob Clark config->num_connector++; 899f453ba04SDave Airlie 900a7331e5cSThomas Hellstrom if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) 90158495563SRob Clark drm_object_attach_property(&connector->base, 902ae16c597SRob Clark config->edid_property, 903a7331e5cSThomas Hellstrom 0); 904f453ba04SDave Airlie 90558495563SRob Clark drm_object_attach_property(&connector->base, 906ae16c597SRob Clark config->dpms_property, 0); 907ae16c597SRob Clark 908ae16c597SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 909ae16c597SRob Clark drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); 910ae16c597SRob Clark } 911f453ba04SDave Airlie 91230f65707SThomas Wood connector->debugfs_entry = NULL; 9135fff80bbSMaarten Lankhorst out_put_type_id: 9145fff80bbSMaarten Lankhorst if (ret) 9155fff80bbSMaarten Lankhorst ida_remove(connector_ida, connector->connector_type_id); 9165fff80bbSMaarten Lankhorst out_put_id: 9175fff80bbSMaarten Lankhorst if (ret) 9185fff80bbSMaarten Lankhorst ida_remove(&config->connector_ida, connector->connector_id); 9192abdd313SJani Nikula out_put: 9202abdd313SJani Nikula if (ret) 9217c8f6d25SDave Airlie drm_mode_object_unregister(dev, &connector->base); 9222abdd313SJani Nikula 9232abdd313SJani Nikula out_unlock: 92484849903SDaniel Vetter drm_modeset_unlock_all(dev); 9256bfc56aaSVille Syrjälä 9266bfc56aaSVille Syrjälä return ret; 927f453ba04SDave Airlie } 928f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_init); 929f453ba04SDave Airlie 930f453ba04SDave Airlie /** 931f453ba04SDave Airlie * drm_connector_cleanup - cleans up an initialised connector 932f453ba04SDave Airlie * @connector: connector to cleanup 933f453ba04SDave Airlie * 934f453ba04SDave Airlie * Cleans up the connector but doesn't free the object. 935f453ba04SDave Airlie */ 936f453ba04SDave Airlie void drm_connector_cleanup(struct drm_connector *connector) 937f453ba04SDave Airlie { 938f453ba04SDave Airlie struct drm_device *dev = connector->dev; 939f453ba04SDave Airlie struct drm_display_mode *mode, *t; 940f453ba04SDave Airlie 94140d9b043SDave Airlie if (connector->tile_group) { 94240d9b043SDave Airlie drm_mode_put_tile_group(dev, connector->tile_group); 94340d9b043SDave Airlie connector->tile_group = NULL; 94440d9b043SDave Airlie } 94540d9b043SDave Airlie 946f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 947f453ba04SDave Airlie drm_mode_remove(connector, mode); 948f453ba04SDave Airlie 949f453ba04SDave Airlie list_for_each_entry_safe(mode, t, &connector->modes, head) 950f453ba04SDave Airlie drm_mode_remove(connector, mode); 951f453ba04SDave Airlie 952b21e3afeSIlia Mirkin ida_remove(&drm_connector_enum_list[connector->connector_type].ida, 953b21e3afeSIlia Mirkin connector->connector_type_id); 954b21e3afeSIlia Mirkin 9555fff80bbSMaarten Lankhorst ida_remove(&dev->mode_config.connector_ida, 9565fff80bbSMaarten Lankhorst connector->connector_id); 9575fff80bbSMaarten Lankhorst 958b5571e9dSBoris Brezillon kfree(connector->display_info.bus_formats); 9597c8f6d25SDave Airlie drm_mode_object_unregister(dev, &connector->base); 9602abdd313SJani Nikula kfree(connector->name); 9612abdd313SJani Nikula connector->name = NULL; 962f453ba04SDave Airlie list_del(&connector->head); 9636380c509SJoonyoung Shim dev->mode_config.num_connector--; 9643009c037SThierry Reding 9653009c037SThierry Reding WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); 9663009c037SThierry Reding if (connector->state && connector->funcs->atomic_destroy_state) 9673009c037SThierry Reding connector->funcs->atomic_destroy_state(connector, 9683009c037SThierry Reding connector->state); 969a18c0af1SThierry Reding 970a18c0af1SThierry Reding memset(connector, 0, sizeof(*connector)); 971f453ba04SDave Airlie } 972f453ba04SDave Airlie EXPORT_SYMBOL(drm_connector_cleanup); 973f453ba04SDave Airlie 974c8e32cc1SDaniel Vetter /** 97534ea3d38SThomas Wood * drm_connector_register - register a connector 97634ea3d38SThomas Wood * @connector: the connector to register 97734ea3d38SThomas Wood * 97834ea3d38SThomas Wood * Register userspace interfaces for a connector 97934ea3d38SThomas Wood * 98034ea3d38SThomas Wood * Returns: 98134ea3d38SThomas Wood * Zero on success, error code on failure. 98234ea3d38SThomas Wood */ 98334ea3d38SThomas Wood int drm_connector_register(struct drm_connector *connector) 98434ea3d38SThomas Wood { 98530f65707SThomas Wood int ret; 98630f65707SThomas Wood 98730f65707SThomas Wood ret = drm_sysfs_connector_add(connector); 98830f65707SThomas Wood if (ret) 98930f65707SThomas Wood return ret; 99030f65707SThomas Wood 99130f65707SThomas Wood ret = drm_debugfs_connector_add(connector); 99230f65707SThomas Wood if (ret) { 993aaf285e2SChris Wilson goto err_sysfs; 994aaf285e2SChris Wilson } 995aaf285e2SChris Wilson 996aaf285e2SChris Wilson if (connector->funcs->late_register) { 997aaf285e2SChris Wilson ret = connector->funcs->late_register(connector); 998aaf285e2SChris Wilson if (ret) 999aaf285e2SChris Wilson goto err_debugfs; 100030f65707SThomas Wood } 100130f65707SThomas Wood 1002fdf2c85fSDaniel Vetter drm_mode_object_register(connector->dev, &connector->base); 1003fdf2c85fSDaniel Vetter 100430f65707SThomas Wood return 0; 1005aaf285e2SChris Wilson 1006aaf285e2SChris Wilson err_debugfs: 1007aaf285e2SChris Wilson drm_debugfs_connector_remove(connector); 1008aaf285e2SChris Wilson err_sysfs: 1009aaf285e2SChris Wilson drm_sysfs_connector_remove(connector); 1010aaf285e2SChris Wilson return ret; 101134ea3d38SThomas Wood } 101234ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_register); 101334ea3d38SThomas Wood 101434ea3d38SThomas Wood /** 101534ea3d38SThomas Wood * drm_connector_unregister - unregister a connector 101634ea3d38SThomas Wood * @connector: the connector to unregister 101734ea3d38SThomas Wood * 101834ea3d38SThomas Wood * Unregister userspace interfaces for a connector 101934ea3d38SThomas Wood */ 102034ea3d38SThomas Wood void drm_connector_unregister(struct drm_connector *connector) 102134ea3d38SThomas Wood { 1022aaf285e2SChris Wilson if (connector->funcs->early_unregister) 1023aaf285e2SChris Wilson connector->funcs->early_unregister(connector); 1024aaf285e2SChris Wilson 102534ea3d38SThomas Wood drm_sysfs_connector_remove(connector); 102630f65707SThomas Wood drm_debugfs_connector_remove(connector); 102734ea3d38SThomas Wood } 102834ea3d38SThomas Wood EXPORT_SYMBOL(drm_connector_unregister); 102934ea3d38SThomas Wood 103034ea3d38SThomas Wood /** 103154d2c2daSAlexey Brodkin * drm_connector_register_all - register all connectors 103254d2c2daSAlexey Brodkin * @dev: drm device 103354d2c2daSAlexey Brodkin * 103454d2c2daSAlexey Brodkin * This function registers all connectors in sysfs and other places so that 103554d2c2daSAlexey Brodkin * userspace can start to access them. Drivers can call it after calling 103654d2c2daSAlexey Brodkin * drm_dev_register() to complete the device registration, if they don't call 103754d2c2daSAlexey Brodkin * drm_connector_register() on each connector individually. 103854d2c2daSAlexey Brodkin * 103954d2c2daSAlexey Brodkin * When a device is unplugged and should be removed from userspace access, 104054d2c2daSAlexey Brodkin * call drm_connector_unregister_all(), which is the inverse of this 104154d2c2daSAlexey Brodkin * function. 104254d2c2daSAlexey Brodkin * 104354d2c2daSAlexey Brodkin * Returns: 104454d2c2daSAlexey Brodkin * Zero on success, error code on failure. 104554d2c2daSAlexey Brodkin */ 104654d2c2daSAlexey Brodkin int drm_connector_register_all(struct drm_device *dev) 104754d2c2daSAlexey Brodkin { 104854d2c2daSAlexey Brodkin struct drm_connector *connector; 104954d2c2daSAlexey Brodkin int ret; 105054d2c2daSAlexey Brodkin 105154d2c2daSAlexey Brodkin mutex_lock(&dev->mode_config.mutex); 105254d2c2daSAlexey Brodkin 105354d2c2daSAlexey Brodkin drm_for_each_connector(connector, dev) { 105454d2c2daSAlexey Brodkin ret = drm_connector_register(connector); 105554d2c2daSAlexey Brodkin if (ret) 105654d2c2daSAlexey Brodkin goto err; 105754d2c2daSAlexey Brodkin } 105854d2c2daSAlexey Brodkin 105954d2c2daSAlexey Brodkin mutex_unlock(&dev->mode_config.mutex); 106054d2c2daSAlexey Brodkin 106154d2c2daSAlexey Brodkin return 0; 106254d2c2daSAlexey Brodkin 106354d2c2daSAlexey Brodkin err: 106454d2c2daSAlexey Brodkin mutex_unlock(&dev->mode_config.mutex); 106554d2c2daSAlexey Brodkin drm_connector_unregister_all(dev); 106654d2c2daSAlexey Brodkin return ret; 106754d2c2daSAlexey Brodkin } 106854d2c2daSAlexey Brodkin EXPORT_SYMBOL(drm_connector_register_all); 106954d2c2daSAlexey Brodkin 107054d2c2daSAlexey Brodkin /** 10716c87e5c3SAlexey Brodkin * drm_connector_unregister_all - unregister connector userspace interfaces 1072c8e32cc1SDaniel Vetter * @dev: drm device 1073c8e32cc1SDaniel Vetter * 10746c87e5c3SAlexey Brodkin * This functions unregisters all connectors from sysfs and other places so 10756c87e5c3SAlexey Brodkin * that userspace can no longer access them. Drivers should call this as the 10766c87e5c3SAlexey Brodkin * first step tearing down the device instace, or when the underlying 10776c87e5c3SAlexey Brodkin * physical device disappeared (e.g. USB unplug), right before calling 10786c87e5c3SAlexey Brodkin * drm_dev_unregister(). 1079c8e32cc1SDaniel Vetter */ 10806c87e5c3SAlexey Brodkin void drm_connector_unregister_all(struct drm_device *dev) 1081cbc7e221SDave Airlie { 1082cbc7e221SDave Airlie struct drm_connector *connector; 1083cbc7e221SDave Airlie 10849a9f5ce8SDaniel Vetter /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ 108514ba0031SLaurent Pinchart list_for_each_entry(connector, &dev->mode_config.connector_list, head) 108634ea3d38SThomas Wood drm_connector_unregister(connector); 1087cbc7e221SDave Airlie } 10886c87e5c3SAlexey Brodkin EXPORT_SYMBOL(drm_connector_unregister_all); 1089cbc7e221SDave Airlie 1090c8e32cc1SDaniel Vetter /** 1091c8e32cc1SDaniel Vetter * drm_encoder_init - Init a preallocated encoder 1092c8e32cc1SDaniel Vetter * @dev: drm device 1093c8e32cc1SDaniel Vetter * @encoder: the encoder to init 1094c8e32cc1SDaniel Vetter * @funcs: callbacks for this encoder 1095c8e32cc1SDaniel Vetter * @encoder_type: user visible type of the encoder 109613a3d91fSVille Syrjälä * @name: printf style format string for the encoder name, or NULL for default name 1097c8e32cc1SDaniel Vetter * 1098c8e32cc1SDaniel Vetter * Initialises a preallocated encoder. Encoder should be 1099c8e32cc1SDaniel Vetter * subclassed as part of driver encoder objects. 1100c8e32cc1SDaniel Vetter * 1101c8e32cc1SDaniel Vetter * Returns: 1102c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 1103c8e32cc1SDaniel Vetter */ 11046bfc56aaSVille Syrjälä int drm_encoder_init(struct drm_device *dev, 1105f453ba04SDave Airlie struct drm_encoder *encoder, 1106f453ba04SDave Airlie const struct drm_encoder_funcs *funcs, 110713a3d91fSVille Syrjälä int encoder_type, const char *name, ...) 1108f453ba04SDave Airlie { 11096bfc56aaSVille Syrjälä int ret; 11106bfc56aaSVille Syrjälä 111184849903SDaniel Vetter drm_modeset_lock_all(dev); 1112f453ba04SDave Airlie 11136bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); 11146bfc56aaSVille Syrjälä if (ret) 1115e5748946SJani Nikula goto out_unlock; 1116f453ba04SDave Airlie 11176bfc56aaSVille Syrjälä encoder->dev = dev; 1118f453ba04SDave Airlie encoder->encoder_type = encoder_type; 1119f453ba04SDave Airlie encoder->funcs = funcs; 112086bf546bSVille Syrjälä if (name) { 112186bf546bSVille Syrjälä va_list ap; 112286bf546bSVille Syrjälä 112386bf546bSVille Syrjälä va_start(ap, name); 112486bf546bSVille Syrjälä encoder->name = kvasprintf(GFP_KERNEL, name, ap); 112586bf546bSVille Syrjälä va_end(ap); 112686bf546bSVille Syrjälä } else { 1127e5748946SJani Nikula encoder->name = kasprintf(GFP_KERNEL, "%s-%d", 1128e5748946SJani Nikula drm_encoder_enum_list[encoder_type].name, 1129e5748946SJani Nikula encoder->base.id); 113086bf546bSVille Syrjälä } 1131e5748946SJani Nikula if (!encoder->name) { 1132e5748946SJani Nikula ret = -ENOMEM; 1133e5748946SJani Nikula goto out_put; 1134e5748946SJani Nikula } 1135f453ba04SDave Airlie 1136f453ba04SDave Airlie list_add_tail(&encoder->head, &dev->mode_config.encoder_list); 1137490d3d1bSChris Wilson encoder->index = dev->mode_config.num_encoder++; 1138f453ba04SDave Airlie 1139e5748946SJani Nikula out_put: 1140e5748946SJani Nikula if (ret) 11417c8f6d25SDave Airlie drm_mode_object_unregister(dev, &encoder->base); 1142e5748946SJani Nikula 1143e5748946SJani Nikula out_unlock: 114484849903SDaniel Vetter drm_modeset_unlock_all(dev); 11456bfc56aaSVille Syrjälä 11466bfc56aaSVille Syrjälä return ret; 1147f453ba04SDave Airlie } 1148f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_init); 1149f453ba04SDave Airlie 1150c8e32cc1SDaniel Vetter /** 1151c8e32cc1SDaniel Vetter * drm_encoder_cleanup - cleans up an initialised encoder 1152c8e32cc1SDaniel Vetter * @encoder: encoder to cleanup 1153c8e32cc1SDaniel Vetter * 1154c8e32cc1SDaniel Vetter * Cleans up the encoder but doesn't free the object. 1155c8e32cc1SDaniel Vetter */ 1156f453ba04SDave Airlie void drm_encoder_cleanup(struct drm_encoder *encoder) 1157f453ba04SDave Airlie { 1158f453ba04SDave Airlie struct drm_device *dev = encoder->dev; 11594dfd909fSThierry Reding 1160490d3d1bSChris Wilson /* Note that the encoder_list is considered to be static; should we 1161490d3d1bSChris Wilson * remove the drm_encoder at runtime we would have to decrement all 1162490d3d1bSChris Wilson * the indices on the drm_encoder after us in the encoder_list. 1163490d3d1bSChris Wilson */ 1164490d3d1bSChris Wilson 116584849903SDaniel Vetter drm_modeset_lock_all(dev); 11667c8f6d25SDave Airlie drm_mode_object_unregister(dev, &encoder->base); 1167e5748946SJani Nikula kfree(encoder->name); 1168f453ba04SDave Airlie list_del(&encoder->head); 11696380c509SJoonyoung Shim dev->mode_config.num_encoder--; 117084849903SDaniel Vetter drm_modeset_unlock_all(dev); 1171a18c0af1SThierry Reding 1172a18c0af1SThierry Reding memset(encoder, 0, sizeof(*encoder)); 1173f453ba04SDave Airlie } 1174f453ba04SDave Airlie EXPORT_SYMBOL(drm_encoder_cleanup); 1175f453ba04SDave Airlie 11769f4c97a2SVille Syrjälä static unsigned int drm_num_planes(struct drm_device *dev) 11779f4c97a2SVille Syrjälä { 11789f4c97a2SVille Syrjälä unsigned int num = 0; 11799f4c97a2SVille Syrjälä struct drm_plane *tmp; 11809f4c97a2SVille Syrjälä 11819f4c97a2SVille Syrjälä drm_for_each_plane(tmp, dev) { 11829f4c97a2SVille Syrjälä num++; 11839f4c97a2SVille Syrjälä } 11849f4c97a2SVille Syrjälä 11859f4c97a2SVille Syrjälä return num; 11869f4c97a2SVille Syrjälä } 11879f4c97a2SVille Syrjälä 118835f2c3aeSVille Syrjälä /** 1189dc415ff9SMatt Roper * drm_universal_plane_init - Initialize a new universal plane object 119035f2c3aeSVille Syrjälä * @dev: DRM device 119135f2c3aeSVille Syrjälä * @plane: plane object to init 119235f2c3aeSVille Syrjälä * @possible_crtcs: bitmask of possible CRTCs 119335f2c3aeSVille Syrjälä * @funcs: callbacks for the new plane 119435f2c3aeSVille Syrjälä * @formats: array of supported formats (%DRM_FORMAT_*) 119535f2c3aeSVille Syrjälä * @format_count: number of elements in @formats 1196dc415ff9SMatt Roper * @type: type of plane (overlay, primary, cursor) 1197b0b3b795SVille Syrjälä * @name: printf style format string for the plane name, or NULL for default name 119835f2c3aeSVille Syrjälä * 1199dc415ff9SMatt Roper * Initializes a plane object of type @type. 120035f2c3aeSVille Syrjälä * 1201c8e32cc1SDaniel Vetter * Returns: 120235f2c3aeSVille Syrjälä * Zero on success, error code on failure. 120335f2c3aeSVille Syrjälä */ 1204dc415ff9SMatt Roper int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, 12058cf5c917SJesse Barnes unsigned long possible_crtcs, 12068cf5c917SJesse Barnes const struct drm_plane_funcs *funcs, 120745e3743aSThierry Reding const uint32_t *formats, unsigned int format_count, 1208b0b3b795SVille Syrjälä enum drm_plane_type type, 1209b0b3b795SVille Syrjälä const char *name, ...) 12108cf5c917SJesse Barnes { 12116b4959f4SRob Clark struct drm_mode_config *config = &dev->mode_config; 12126bfc56aaSVille Syrjälä int ret; 12136bfc56aaSVille Syrjälä 12146bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); 12156bfc56aaSVille Syrjälä if (ret) 1216baf698b0SDaniel Vetter return ret; 12176bfc56aaSVille Syrjälä 12184d02e2deSDaniel Vetter drm_modeset_lock_init(&plane->mutex); 12194d02e2deSDaniel Vetter 12204d93914aSRob Clark plane->base.properties = &plane->properties; 12218cf5c917SJesse Barnes plane->dev = dev; 12228cf5c917SJesse Barnes plane->funcs = funcs; 12232f6c5389SThierry Reding plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), 12248cf5c917SJesse Barnes GFP_KERNEL); 12258cf5c917SJesse Barnes if (!plane->format_types) { 12268cf5c917SJesse Barnes DRM_DEBUG_KMS("out of memory when allocating plane\n"); 12277c8f6d25SDave Airlie drm_mode_object_unregister(dev, &plane->base); 1228baf698b0SDaniel Vetter return -ENOMEM; 12298cf5c917SJesse Barnes } 12308cf5c917SJesse Barnes 12319f4c97a2SVille Syrjälä if (name) { 12329f4c97a2SVille Syrjälä va_list ap; 12339f4c97a2SVille Syrjälä 12349f4c97a2SVille Syrjälä va_start(ap, name); 12359f4c97a2SVille Syrjälä plane->name = kvasprintf(GFP_KERNEL, name, ap); 12369f4c97a2SVille Syrjälä va_end(ap); 12379f4c97a2SVille Syrjälä } else { 12389f4c97a2SVille Syrjälä plane->name = kasprintf(GFP_KERNEL, "plane-%d", 12399f4c97a2SVille Syrjälä drm_num_planes(dev)); 12409f4c97a2SVille Syrjälä } 12419f4c97a2SVille Syrjälä if (!plane->name) { 12429f4c97a2SVille Syrjälä kfree(plane->format_types); 12437c8f6d25SDave Airlie drm_mode_object_unregister(dev, &plane->base); 12449f4c97a2SVille Syrjälä return -ENOMEM; 12459f4c97a2SVille Syrjälä } 12469f4c97a2SVille Syrjälä 1247308e5bcbSJesse Barnes memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); 12488cf5c917SJesse Barnes plane->format_count = format_count; 12498cf5c917SJesse Barnes plane->possible_crtcs = possible_crtcs; 1250dc415ff9SMatt Roper plane->type = type; 12518cf5c917SJesse Barnes 12526b4959f4SRob Clark list_add_tail(&plane->head, &config->plane_list); 1253490d3d1bSChris Wilson plane->index = config->num_total_plane++; 1254e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 12556b4959f4SRob Clark config->num_overlay_plane++; 12568cf5c917SJesse Barnes 12579922ab5aSRob Clark drm_object_attach_property(&plane->base, 12586b4959f4SRob Clark config->plane_type_property, 12599922ab5aSRob Clark plane->type); 12609922ab5aSRob Clark 12616b4959f4SRob Clark if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 12626b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_fb_id, 0); 12636b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); 12646b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); 12656b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); 12666b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); 12676b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); 12686b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_x, 0); 12696b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_y, 0); 12706b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_w, 0); 12716b4959f4SRob Clark drm_object_attach_property(&plane->base, config->prop_src_h, 0); 12726b4959f4SRob Clark } 12736b4959f4SRob Clark 1274baf698b0SDaniel Vetter return 0; 12758cf5c917SJesse Barnes } 1276dc415ff9SMatt Roper EXPORT_SYMBOL(drm_universal_plane_init); 1277dc415ff9SMatt Roper 1278dc415ff9SMatt Roper /** 1279dc415ff9SMatt Roper * drm_plane_init - Initialize a legacy plane 1280dc415ff9SMatt Roper * @dev: DRM device 1281dc415ff9SMatt Roper * @plane: plane object to init 1282dc415ff9SMatt Roper * @possible_crtcs: bitmask of possible CRTCs 1283dc415ff9SMatt Roper * @funcs: callbacks for the new plane 1284dc415ff9SMatt Roper * @formats: array of supported formats (%DRM_FORMAT_*) 1285dc415ff9SMatt Roper * @format_count: number of elements in @formats 1286dc415ff9SMatt Roper * @is_primary: plane type (primary vs overlay) 1287dc415ff9SMatt Roper * 1288dc415ff9SMatt Roper * Legacy API to initialize a DRM plane. 1289dc415ff9SMatt Roper * 1290dc415ff9SMatt Roper * New drivers should call drm_universal_plane_init() instead. 1291dc415ff9SMatt Roper * 1292dc415ff9SMatt Roper * Returns: 1293dc415ff9SMatt Roper * Zero on success, error code on failure. 1294dc415ff9SMatt Roper */ 1295dc415ff9SMatt Roper int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, 1296dc415ff9SMatt Roper unsigned long possible_crtcs, 1297dc415ff9SMatt Roper const struct drm_plane_funcs *funcs, 129845e3743aSThierry Reding const uint32_t *formats, unsigned int format_count, 1299dc415ff9SMatt Roper bool is_primary) 1300dc415ff9SMatt Roper { 1301dc415ff9SMatt Roper enum drm_plane_type type; 1302dc415ff9SMatt Roper 1303dc415ff9SMatt Roper type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; 1304dc415ff9SMatt Roper return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, 1305b0b3b795SVille Syrjälä formats, format_count, type, NULL); 1306dc415ff9SMatt Roper } 13078cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_init); 13088cf5c917SJesse Barnes 130935f2c3aeSVille Syrjälä /** 131035f2c3aeSVille Syrjälä * drm_plane_cleanup - Clean up the core plane usage 131135f2c3aeSVille Syrjälä * @plane: plane to cleanup 131235f2c3aeSVille Syrjälä * 131335f2c3aeSVille Syrjälä * This function cleans up @plane and removes it from the DRM mode setting 131435f2c3aeSVille Syrjälä * core. Note that the function does *not* free the plane structure itself, 131535f2c3aeSVille Syrjälä * this is the responsibility of the caller. 131635f2c3aeSVille Syrjälä */ 13178cf5c917SJesse Barnes void drm_plane_cleanup(struct drm_plane *plane) 13188cf5c917SJesse Barnes { 13198cf5c917SJesse Barnes struct drm_device *dev = plane->dev; 13208cf5c917SJesse Barnes 132184849903SDaniel Vetter drm_modeset_lock_all(dev); 13228cf5c917SJesse Barnes kfree(plane->format_types); 13237c8f6d25SDave Airlie drm_mode_object_unregister(dev, &plane->base); 1324dc415ff9SMatt Roper 1325dc415ff9SMatt Roper BUG_ON(list_empty(&plane->head)); 1326dc415ff9SMatt Roper 1327490d3d1bSChris Wilson /* Note that the plane_list is considered to be static; should we 1328490d3d1bSChris Wilson * remove the drm_plane at runtime we would have to decrement all 1329490d3d1bSChris Wilson * the indices on the drm_plane after us in the plane_list. 1330490d3d1bSChris Wilson */ 1331490d3d1bSChris Wilson 13328cf5c917SJesse Barnes list_del(&plane->head); 1333e27dde3eSMatt Roper dev->mode_config.num_total_plane--; 1334e27dde3eSMatt Roper if (plane->type == DRM_PLANE_TYPE_OVERLAY) 1335e27dde3eSMatt Roper dev->mode_config.num_overlay_plane--; 133684849903SDaniel Vetter drm_modeset_unlock_all(dev); 13373009c037SThierry Reding 13383009c037SThierry Reding WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); 13393009c037SThierry Reding if (plane->state && plane->funcs->atomic_destroy_state) 13403009c037SThierry Reding plane->funcs->atomic_destroy_state(plane, plane->state); 1341a18c0af1SThierry Reding 13429f4c97a2SVille Syrjälä kfree(plane->name); 13439f4c97a2SVille Syrjälä 1344a18c0af1SThierry Reding memset(plane, 0, sizeof(*plane)); 13458cf5c917SJesse Barnes } 13468cf5c917SJesse Barnes EXPORT_SYMBOL(drm_plane_cleanup); 13478cf5c917SJesse Barnes 134835f2c3aeSVille Syrjälä /** 1349f81338a5SChandra Konduru * drm_plane_from_index - find the registered plane at an index 1350f81338a5SChandra Konduru * @dev: DRM device 1351f81338a5SChandra Konduru * @idx: index of registered plane to find for 1352f81338a5SChandra Konduru * 1353f81338a5SChandra Konduru * Given a plane index, return the registered plane from DRM device's 1354f81338a5SChandra Konduru * list of planes with matching index. 1355f81338a5SChandra Konduru */ 1356f81338a5SChandra Konduru struct drm_plane * 1357f81338a5SChandra Konduru drm_plane_from_index(struct drm_device *dev, int idx) 1358f81338a5SChandra Konduru { 1359f81338a5SChandra Konduru struct drm_plane *plane; 1360f81338a5SChandra Konduru 1361490d3d1bSChris Wilson drm_for_each_plane(plane, dev) 1362490d3d1bSChris Wilson if (idx == plane->index) 1363f81338a5SChandra Konduru return plane; 1364490d3d1bSChris Wilson 1365f81338a5SChandra Konduru return NULL; 1366f81338a5SChandra Konduru } 1367f81338a5SChandra Konduru EXPORT_SYMBOL(drm_plane_from_index); 1368f81338a5SChandra Konduru 1369f81338a5SChandra Konduru /** 137035f2c3aeSVille Syrjälä * drm_plane_force_disable - Forcibly disable a plane 137135f2c3aeSVille Syrjälä * @plane: plane to disable 137235f2c3aeSVille Syrjälä * 137335f2c3aeSVille Syrjälä * Forces the plane to be disabled. 137435f2c3aeSVille Syrjälä * 137535f2c3aeSVille Syrjälä * Used when the plane's current framebuffer is destroyed, 137635f2c3aeSVille Syrjälä * and when restoring fbdev mode. 137735f2c3aeSVille Syrjälä */ 13789125e618SVille Syrjälä void drm_plane_force_disable(struct drm_plane *plane) 13799125e618SVille Syrjälä { 13809125e618SVille Syrjälä int ret; 13819125e618SVille Syrjälä 13823d30a59bSDaniel Vetter if (!plane->fb) 13839125e618SVille Syrjälä return; 13849125e618SVille Syrjälä 13853d30a59bSDaniel Vetter plane->old_fb = plane->fb; 13869125e618SVille Syrjälä ret = plane->funcs->disable_plane(plane); 1387731cce48SDaniel Vetter if (ret) { 13889125e618SVille Syrjälä DRM_ERROR("failed to disable plane with busy fb\n"); 13893d30a59bSDaniel Vetter plane->old_fb = NULL; 1390731cce48SDaniel Vetter return; 1391731cce48SDaniel Vetter } 13929125e618SVille Syrjälä /* disconnect the plane from the fb and crtc: */ 1393220dd2bcSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 13943d30a59bSDaniel Vetter plane->old_fb = NULL; 13959125e618SVille Syrjälä plane->fb = NULL; 13969125e618SVille Syrjälä plane->crtc = NULL; 13979125e618SVille Syrjälä } 13989125e618SVille Syrjälä EXPORT_SYMBOL(drm_plane_force_disable); 13999125e618SVille Syrjälä 14006b4959f4SRob Clark static int drm_mode_create_standard_properties(struct drm_device *dev) 1401f453ba04SDave Airlie { 1402356af0e1SRob Clark struct drm_property *prop; 1403f453ba04SDave Airlie 1404f453ba04SDave Airlie /* 1405f453ba04SDave Airlie * Standard properties (apply to all connectors) 1406f453ba04SDave Airlie */ 1407356af0e1SRob Clark prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | 1408f453ba04SDave Airlie DRM_MODE_PROP_IMMUTABLE, 1409f453ba04SDave Airlie "EDID", 0); 1410356af0e1SRob Clark if (!prop) 1411356af0e1SRob Clark return -ENOMEM; 1412356af0e1SRob Clark dev->mode_config.edid_property = prop; 1413f453ba04SDave Airlie 1414356af0e1SRob Clark prop = drm_property_create_enum(dev, 0, 14154a67d391SSascha Hauer "DPMS", drm_dpms_enum_list, 14164a67d391SSascha Hauer ARRAY_SIZE(drm_dpms_enum_list)); 1417356af0e1SRob Clark if (!prop) 1418356af0e1SRob Clark return -ENOMEM; 1419356af0e1SRob Clark dev->mode_config.dpms_property = prop; 1420f453ba04SDave Airlie 1421356af0e1SRob Clark prop = drm_property_create(dev, 142243aba7ebSDave Airlie DRM_MODE_PROP_BLOB | 142343aba7ebSDave Airlie DRM_MODE_PROP_IMMUTABLE, 142443aba7ebSDave Airlie "PATH", 0); 1425356af0e1SRob Clark if (!prop) 1426356af0e1SRob Clark return -ENOMEM; 1427356af0e1SRob Clark dev->mode_config.path_property = prop; 142843aba7ebSDave Airlie 1429356af0e1SRob Clark prop = drm_property_create(dev, 14306f134d7bSDave Airlie DRM_MODE_PROP_BLOB | 14316f134d7bSDave Airlie DRM_MODE_PROP_IMMUTABLE, 14326f134d7bSDave Airlie "TILE", 0); 1433356af0e1SRob Clark if (!prop) 1434356af0e1SRob Clark return -ENOMEM; 1435356af0e1SRob Clark dev->mode_config.tile_property = prop; 14366f134d7bSDave Airlie 14376b4959f4SRob Clark prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 14389922ab5aSRob Clark "type", drm_plane_type_enum_list, 14399922ab5aSRob Clark ARRAY_SIZE(drm_plane_type_enum_list)); 14406b4959f4SRob Clark if (!prop) 14416b4959f4SRob Clark return -ENOMEM; 14426b4959f4SRob Clark dev->mode_config.plane_type_property = prop; 14436b4959f4SRob Clark 14446b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14456b4959f4SRob Clark "SRC_X", 0, UINT_MAX); 14466b4959f4SRob Clark if (!prop) 14476b4959f4SRob Clark return -ENOMEM; 14486b4959f4SRob Clark dev->mode_config.prop_src_x = prop; 14496b4959f4SRob Clark 14506b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14516b4959f4SRob Clark "SRC_Y", 0, UINT_MAX); 14526b4959f4SRob Clark if (!prop) 14536b4959f4SRob Clark return -ENOMEM; 14546b4959f4SRob Clark dev->mode_config.prop_src_y = prop; 14556b4959f4SRob Clark 14566b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14576b4959f4SRob Clark "SRC_W", 0, UINT_MAX); 14586b4959f4SRob Clark if (!prop) 14596b4959f4SRob Clark return -ENOMEM; 14606b4959f4SRob Clark dev->mode_config.prop_src_w = prop; 14616b4959f4SRob Clark 14626b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14636b4959f4SRob Clark "SRC_H", 0, UINT_MAX); 14646b4959f4SRob Clark if (!prop) 14656b4959f4SRob Clark return -ENOMEM; 14666b4959f4SRob Clark dev->mode_config.prop_src_h = prop; 14676b4959f4SRob Clark 14686b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 14696b4959f4SRob Clark "CRTC_X", INT_MIN, INT_MAX); 14706b4959f4SRob Clark if (!prop) 14716b4959f4SRob Clark return -ENOMEM; 14726b4959f4SRob Clark dev->mode_config.prop_crtc_x = prop; 14736b4959f4SRob Clark 14746b4959f4SRob Clark prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, 14756b4959f4SRob Clark "CRTC_Y", INT_MIN, INT_MAX); 14766b4959f4SRob Clark if (!prop) 14776b4959f4SRob Clark return -ENOMEM; 14786b4959f4SRob Clark dev->mode_config.prop_crtc_y = prop; 14796b4959f4SRob Clark 14806b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14816b4959f4SRob Clark "CRTC_W", 0, INT_MAX); 14826b4959f4SRob Clark if (!prop) 14836b4959f4SRob Clark return -ENOMEM; 14846b4959f4SRob Clark dev->mode_config.prop_crtc_w = prop; 14856b4959f4SRob Clark 14866b4959f4SRob Clark prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, 14876b4959f4SRob Clark "CRTC_H", 0, INT_MAX); 14886b4959f4SRob Clark if (!prop) 14896b4959f4SRob Clark return -ENOMEM; 14906b4959f4SRob Clark dev->mode_config.prop_crtc_h = prop; 14916b4959f4SRob Clark 14926b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 14936b4959f4SRob Clark "FB_ID", DRM_MODE_OBJECT_FB); 14946b4959f4SRob Clark if (!prop) 14956b4959f4SRob Clark return -ENOMEM; 14966b4959f4SRob Clark dev->mode_config.prop_fb_id = prop; 14976b4959f4SRob Clark 14986b4959f4SRob Clark prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, 14996b4959f4SRob Clark "CRTC_ID", DRM_MODE_OBJECT_CRTC); 15006b4959f4SRob Clark if (!prop) 15016b4959f4SRob Clark return -ENOMEM; 15026b4959f4SRob Clark dev->mode_config.prop_crtc_id = prop; 15039922ab5aSRob Clark 1504eab3bbefSDaniel Vetter prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, 1505eab3bbefSDaniel Vetter "ACTIVE"); 1506eab3bbefSDaniel Vetter if (!prop) 1507eab3bbefSDaniel Vetter return -ENOMEM; 1508eab3bbefSDaniel Vetter dev->mode_config.prop_active = prop; 1509eab3bbefSDaniel Vetter 1510955f3c33SDaniel Stone prop = drm_property_create(dev, 1511955f3c33SDaniel Stone DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, 1512955f3c33SDaniel Stone "MODE_ID", 0); 1513955f3c33SDaniel Stone if (!prop) 1514955f3c33SDaniel Stone return -ENOMEM; 1515955f3c33SDaniel Stone dev->mode_config.prop_mode_id = prop; 1516955f3c33SDaniel Stone 15175488dc16SLionel Landwerlin prop = drm_property_create(dev, 15185488dc16SLionel Landwerlin DRM_MODE_PROP_BLOB, 15195488dc16SLionel Landwerlin "DEGAMMA_LUT", 0); 15205488dc16SLionel Landwerlin if (!prop) 15215488dc16SLionel Landwerlin return -ENOMEM; 15225488dc16SLionel Landwerlin dev->mode_config.degamma_lut_property = prop; 15235488dc16SLionel Landwerlin 15245488dc16SLionel Landwerlin prop = drm_property_create_range(dev, 15255488dc16SLionel Landwerlin DRM_MODE_PROP_IMMUTABLE, 15265488dc16SLionel Landwerlin "DEGAMMA_LUT_SIZE", 0, UINT_MAX); 15275488dc16SLionel Landwerlin if (!prop) 15285488dc16SLionel Landwerlin return -ENOMEM; 15295488dc16SLionel Landwerlin dev->mode_config.degamma_lut_size_property = prop; 15305488dc16SLionel Landwerlin 15315488dc16SLionel Landwerlin prop = drm_property_create(dev, 15325488dc16SLionel Landwerlin DRM_MODE_PROP_BLOB, 15335488dc16SLionel Landwerlin "CTM", 0); 15345488dc16SLionel Landwerlin if (!prop) 15355488dc16SLionel Landwerlin return -ENOMEM; 15365488dc16SLionel Landwerlin dev->mode_config.ctm_property = prop; 15375488dc16SLionel Landwerlin 15385488dc16SLionel Landwerlin prop = drm_property_create(dev, 15395488dc16SLionel Landwerlin DRM_MODE_PROP_BLOB, 15405488dc16SLionel Landwerlin "GAMMA_LUT", 0); 15415488dc16SLionel Landwerlin if (!prop) 15425488dc16SLionel Landwerlin return -ENOMEM; 15435488dc16SLionel Landwerlin dev->mode_config.gamma_lut_property = prop; 15445488dc16SLionel Landwerlin 15455488dc16SLionel Landwerlin prop = drm_property_create_range(dev, 15465488dc16SLionel Landwerlin DRM_MODE_PROP_IMMUTABLE, 15475488dc16SLionel Landwerlin "GAMMA_LUT_SIZE", 0, UINT_MAX); 15485488dc16SLionel Landwerlin if (!prop) 15495488dc16SLionel Landwerlin return -ENOMEM; 15505488dc16SLionel Landwerlin dev->mode_config.gamma_lut_size_property = prop; 15515488dc16SLionel Landwerlin 15529922ab5aSRob Clark return 0; 15539922ab5aSRob Clark } 15549922ab5aSRob Clark 1555f453ba04SDave Airlie /** 1556f453ba04SDave Airlie * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 1557f453ba04SDave Airlie * @dev: DRM device 1558f453ba04SDave Airlie * 1559f453ba04SDave Airlie * Called by a driver the first time a DVI-I connector is made. 1560f453ba04SDave Airlie */ 1561f453ba04SDave Airlie int drm_mode_create_dvi_i_properties(struct drm_device *dev) 1562f453ba04SDave Airlie { 1563f453ba04SDave Airlie struct drm_property *dvi_i_selector; 1564f453ba04SDave Airlie struct drm_property *dvi_i_subconnector; 1565f453ba04SDave Airlie 1566f453ba04SDave Airlie if (dev->mode_config.dvi_i_select_subconnector_property) 1567f453ba04SDave Airlie return 0; 1568f453ba04SDave Airlie 1569f453ba04SDave Airlie dvi_i_selector = 15704a67d391SSascha Hauer drm_property_create_enum(dev, 0, 1571f453ba04SDave Airlie "select subconnector", 15724a67d391SSascha Hauer drm_dvi_i_select_enum_list, 1573f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_select_enum_list)); 1574f453ba04SDave Airlie dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 1575f453ba04SDave Airlie 15764a67d391SSascha Hauer dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1577f453ba04SDave Airlie "subconnector", 15784a67d391SSascha Hauer drm_dvi_i_subconnector_enum_list, 1579f453ba04SDave Airlie ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 1580f453ba04SDave Airlie dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 1581f453ba04SDave Airlie 1582f453ba04SDave Airlie return 0; 1583f453ba04SDave Airlie } 1584f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 1585f453ba04SDave Airlie 1586f453ba04SDave Airlie /** 1587f453ba04SDave Airlie * drm_create_tv_properties - create TV specific connector properties 1588f453ba04SDave Airlie * @dev: DRM device 1589f453ba04SDave Airlie * @num_modes: number of different TV formats (modes) supported 1590f453ba04SDave Airlie * @modes: array of pointers to strings containing name of each format 1591f453ba04SDave Airlie * 1592f453ba04SDave Airlie * Called by a driver's TV initialization routine, this function creates 1593f453ba04SDave Airlie * the TV specific connector properties for a given device. Caller is 1594f453ba04SDave Airlie * responsible for allocating a list of format names and passing them to 1595f453ba04SDave Airlie * this routine. 1596f453ba04SDave Airlie */ 15972f763312SThierry Reding int drm_mode_create_tv_properties(struct drm_device *dev, 15982f763312SThierry Reding unsigned int num_modes, 1599b7c914b3SVille Syrjälä const char * const modes[]) 1600f453ba04SDave Airlie { 1601f453ba04SDave Airlie struct drm_property *tv_selector; 1602f453ba04SDave Airlie struct drm_property *tv_subconnector; 16032f763312SThierry Reding unsigned int i; 1604f453ba04SDave Airlie 1605f453ba04SDave Airlie if (dev->mode_config.tv_select_subconnector_property) 1606f453ba04SDave Airlie return 0; 1607f453ba04SDave Airlie 1608f453ba04SDave Airlie /* 1609f453ba04SDave Airlie * Basic connector properties 1610f453ba04SDave Airlie */ 16114a67d391SSascha Hauer tv_selector = drm_property_create_enum(dev, 0, 1612f453ba04SDave Airlie "select subconnector", 16134a67d391SSascha Hauer drm_tv_select_enum_list, 1614f453ba04SDave Airlie ARRAY_SIZE(drm_tv_select_enum_list)); 161548aa1e74SInsu Yun if (!tv_selector) 161648aa1e74SInsu Yun goto nomem; 161748aa1e74SInsu Yun 1618f453ba04SDave Airlie dev->mode_config.tv_select_subconnector_property = tv_selector; 1619f453ba04SDave Airlie 1620f453ba04SDave Airlie tv_subconnector = 16214a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 16224a67d391SSascha Hauer "subconnector", 16234a67d391SSascha Hauer drm_tv_subconnector_enum_list, 1624f453ba04SDave Airlie ARRAY_SIZE(drm_tv_subconnector_enum_list)); 162548aa1e74SInsu Yun if (!tv_subconnector) 162648aa1e74SInsu Yun goto nomem; 1627f453ba04SDave Airlie dev->mode_config.tv_subconnector_property = tv_subconnector; 1628f453ba04SDave Airlie 1629f453ba04SDave Airlie /* 1630f453ba04SDave Airlie * Other, TV specific properties: margins & TV modes. 1631f453ba04SDave Airlie */ 1632f453ba04SDave Airlie dev->mode_config.tv_left_margin_property = 1633d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "left margin", 0, 100); 163448aa1e74SInsu Yun if (!dev->mode_config.tv_left_margin_property) 163548aa1e74SInsu Yun goto nomem; 1636f453ba04SDave Airlie 1637f453ba04SDave Airlie dev->mode_config.tv_right_margin_property = 1638d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "right margin", 0, 100); 163948aa1e74SInsu Yun if (!dev->mode_config.tv_right_margin_property) 164048aa1e74SInsu Yun goto nomem; 1641f453ba04SDave Airlie 1642f453ba04SDave Airlie dev->mode_config.tv_top_margin_property = 1643d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "top margin", 0, 100); 164448aa1e74SInsu Yun if (!dev->mode_config.tv_top_margin_property) 164548aa1e74SInsu Yun goto nomem; 1646f453ba04SDave Airlie 1647f453ba04SDave Airlie dev->mode_config.tv_bottom_margin_property = 1648d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "bottom margin", 0, 100); 164948aa1e74SInsu Yun if (!dev->mode_config.tv_bottom_margin_property) 165048aa1e74SInsu Yun goto nomem; 1651f453ba04SDave Airlie 1652f453ba04SDave Airlie dev->mode_config.tv_mode_property = 1653f453ba04SDave Airlie drm_property_create(dev, DRM_MODE_PROP_ENUM, 1654f453ba04SDave Airlie "mode", num_modes); 165548aa1e74SInsu Yun if (!dev->mode_config.tv_mode_property) 165648aa1e74SInsu Yun goto nomem; 165748aa1e74SInsu Yun 1658f453ba04SDave Airlie for (i = 0; i < num_modes; i++) 1659f453ba04SDave Airlie drm_property_add_enum(dev->mode_config.tv_mode_property, i, 1660f453ba04SDave Airlie i, modes[i]); 1661f453ba04SDave Airlie 1662b6b7902eSFrancisco Jerez dev->mode_config.tv_brightness_property = 1663d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "brightness", 0, 100); 166448aa1e74SInsu Yun if (!dev->mode_config.tv_brightness_property) 166548aa1e74SInsu Yun goto nomem; 1666b6b7902eSFrancisco Jerez 1667b6b7902eSFrancisco Jerez dev->mode_config.tv_contrast_property = 1668d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "contrast", 0, 100); 166948aa1e74SInsu Yun if (!dev->mode_config.tv_contrast_property) 167048aa1e74SInsu Yun goto nomem; 1671b6b7902eSFrancisco Jerez 1672b6b7902eSFrancisco Jerez dev->mode_config.tv_flicker_reduction_property = 1673d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 167448aa1e74SInsu Yun if (!dev->mode_config.tv_flicker_reduction_property) 167548aa1e74SInsu Yun goto nomem; 1676b6b7902eSFrancisco Jerez 1677a75f0236SFrancisco Jerez dev->mode_config.tv_overscan_property = 1678d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "overscan", 0, 100); 167948aa1e74SInsu Yun if (!dev->mode_config.tv_overscan_property) 168048aa1e74SInsu Yun goto nomem; 1681a75f0236SFrancisco Jerez 1682a75f0236SFrancisco Jerez dev->mode_config.tv_saturation_property = 1683d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "saturation", 0, 100); 168448aa1e74SInsu Yun if (!dev->mode_config.tv_saturation_property) 168548aa1e74SInsu Yun goto nomem; 1686a75f0236SFrancisco Jerez 1687a75f0236SFrancisco Jerez dev->mode_config.tv_hue_property = 1688d9bc3c02SSascha Hauer drm_property_create_range(dev, 0, "hue", 0, 100); 168948aa1e74SInsu Yun if (!dev->mode_config.tv_hue_property) 169048aa1e74SInsu Yun goto nomem; 1691a75f0236SFrancisco Jerez 1692f453ba04SDave Airlie return 0; 169348aa1e74SInsu Yun nomem: 169448aa1e74SInsu Yun return -ENOMEM; 1695f453ba04SDave Airlie } 1696f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_tv_properties); 1697f453ba04SDave Airlie 1698f453ba04SDave Airlie /** 1699f453ba04SDave Airlie * drm_mode_create_scaling_mode_property - create scaling mode property 1700f453ba04SDave Airlie * @dev: DRM device 1701f453ba04SDave Airlie * 1702f453ba04SDave Airlie * Called by a driver the first time it's needed, must be attached to desired 1703f453ba04SDave Airlie * connectors. 1704f453ba04SDave Airlie */ 1705f453ba04SDave Airlie int drm_mode_create_scaling_mode_property(struct drm_device *dev) 1706f453ba04SDave Airlie { 1707f453ba04SDave Airlie struct drm_property *scaling_mode; 1708f453ba04SDave Airlie 1709f453ba04SDave Airlie if (dev->mode_config.scaling_mode_property) 1710f453ba04SDave Airlie return 0; 1711f453ba04SDave Airlie 1712f453ba04SDave Airlie scaling_mode = 17134a67d391SSascha Hauer drm_property_create_enum(dev, 0, "scaling mode", 17144a67d391SSascha Hauer drm_scaling_mode_enum_list, 1715f453ba04SDave Airlie ARRAY_SIZE(drm_scaling_mode_enum_list)); 1716f453ba04SDave Airlie 1717f453ba04SDave Airlie dev->mode_config.scaling_mode_property = scaling_mode; 1718f453ba04SDave Airlie 1719f453ba04SDave Airlie return 0; 1720f453ba04SDave Airlie } 1721f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 1722f453ba04SDave Airlie 1723f453ba04SDave Airlie /** 1724ff587e45SVandana Kannan * drm_mode_create_aspect_ratio_property - create aspect ratio property 1725ff587e45SVandana Kannan * @dev: DRM device 1726ff587e45SVandana Kannan * 1727ff587e45SVandana Kannan * Called by a driver the first time it's needed, must be attached to desired 1728ff587e45SVandana Kannan * connectors. 1729ff587e45SVandana Kannan * 1730ff587e45SVandana Kannan * Returns: 17311a498633SDaniel Vetter * Zero on success, negative errno on failure. 1732ff587e45SVandana Kannan */ 1733ff587e45SVandana Kannan int drm_mode_create_aspect_ratio_property(struct drm_device *dev) 1734ff587e45SVandana Kannan { 1735ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property) 1736ff587e45SVandana Kannan return 0; 1737ff587e45SVandana Kannan 1738ff587e45SVandana Kannan dev->mode_config.aspect_ratio_property = 1739ff587e45SVandana Kannan drm_property_create_enum(dev, 0, "aspect ratio", 1740ff587e45SVandana Kannan drm_aspect_ratio_enum_list, 1741ff587e45SVandana Kannan ARRAY_SIZE(drm_aspect_ratio_enum_list)); 1742ff587e45SVandana Kannan 1743ff587e45SVandana Kannan if (dev->mode_config.aspect_ratio_property == NULL) 1744ff587e45SVandana Kannan return -ENOMEM; 1745ff587e45SVandana Kannan 1746ff587e45SVandana Kannan return 0; 1747ff587e45SVandana Kannan } 1748ff587e45SVandana Kannan EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); 1749ff587e45SVandana Kannan 1750ff587e45SVandana Kannan /** 1751884840aaSJakob Bornecrantz * drm_mode_create_dirty_property - create dirty property 1752884840aaSJakob Bornecrantz * @dev: DRM device 1753884840aaSJakob Bornecrantz * 1754884840aaSJakob Bornecrantz * Called by a driver the first time it's needed, must be attached to desired 1755884840aaSJakob Bornecrantz * connectors. 1756884840aaSJakob Bornecrantz */ 1757884840aaSJakob Bornecrantz int drm_mode_create_dirty_info_property(struct drm_device *dev) 1758884840aaSJakob Bornecrantz { 1759884840aaSJakob Bornecrantz struct drm_property *dirty_info; 1760884840aaSJakob Bornecrantz 1761884840aaSJakob Bornecrantz if (dev->mode_config.dirty_info_property) 1762884840aaSJakob Bornecrantz return 0; 1763884840aaSJakob Bornecrantz 1764884840aaSJakob Bornecrantz dirty_info = 17654a67d391SSascha Hauer drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 1766884840aaSJakob Bornecrantz "dirty", 17674a67d391SSascha Hauer drm_dirty_info_enum_list, 1768884840aaSJakob Bornecrantz ARRAY_SIZE(drm_dirty_info_enum_list)); 1769884840aaSJakob Bornecrantz dev->mode_config.dirty_info_property = dirty_info; 1770884840aaSJakob Bornecrantz 1771884840aaSJakob Bornecrantz return 0; 1772884840aaSJakob Bornecrantz } 1773884840aaSJakob Bornecrantz EXPORT_SYMBOL(drm_mode_create_dirty_info_property); 1774884840aaSJakob Bornecrantz 17755bb2bbf5SDave Airlie /** 17765bb2bbf5SDave Airlie * drm_mode_create_suggested_offset_properties - create suggests offset properties 17775bb2bbf5SDave Airlie * @dev: DRM device 17785bb2bbf5SDave Airlie * 17795bb2bbf5SDave Airlie * Create the the suggested x/y offset property for connectors. 17805bb2bbf5SDave Airlie */ 17815bb2bbf5SDave Airlie int drm_mode_create_suggested_offset_properties(struct drm_device *dev) 17825bb2bbf5SDave Airlie { 17835bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) 17845bb2bbf5SDave Airlie return 0; 17855bb2bbf5SDave Airlie 17865bb2bbf5SDave Airlie dev->mode_config.suggested_x_property = 17875bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); 17885bb2bbf5SDave Airlie 17895bb2bbf5SDave Airlie dev->mode_config.suggested_y_property = 17905bb2bbf5SDave Airlie drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); 17915bb2bbf5SDave Airlie 17925bb2bbf5SDave Airlie if (dev->mode_config.suggested_x_property == NULL || 17935bb2bbf5SDave Airlie dev->mode_config.suggested_y_property == NULL) 17945bb2bbf5SDave Airlie return -ENOMEM; 17955bb2bbf5SDave Airlie return 0; 17965bb2bbf5SDave Airlie } 17975bb2bbf5SDave Airlie EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); 17985bb2bbf5SDave Airlie 1799f453ba04SDave Airlie /** 1800f453ba04SDave Airlie * drm_mode_getresources - get graphics configuration 1801065a50edSDaniel Vetter * @dev: drm device for the ioctl 1802065a50edSDaniel Vetter * @data: data pointer for the ioctl 1803065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 1804f453ba04SDave Airlie * 1805f453ba04SDave Airlie * Construct a set of configuration description structures and return 1806f453ba04SDave Airlie * them to the user, including CRTC, connector and framebuffer configuration. 1807f453ba04SDave Airlie * 1808f453ba04SDave Airlie * Called by the user via ioctl. 1809f453ba04SDave Airlie * 1810c8e32cc1SDaniel Vetter * Returns: 18111a498633SDaniel Vetter * Zero on success, negative errno on failure. 1812f453ba04SDave Airlie */ 1813f453ba04SDave Airlie int drm_mode_getresources(struct drm_device *dev, void *data, 1814f453ba04SDave Airlie struct drm_file *file_priv) 1815f453ba04SDave Airlie { 1816f453ba04SDave Airlie struct drm_mode_card_res *card_res = data; 1817f453ba04SDave Airlie struct list_head *lh; 1818f453ba04SDave Airlie struct drm_framebuffer *fb; 1819f453ba04SDave Airlie struct drm_connector *connector; 1820f453ba04SDave Airlie struct drm_crtc *crtc; 1821f453ba04SDave Airlie struct drm_encoder *encoder; 1822f453ba04SDave Airlie int ret = 0; 1823f453ba04SDave Airlie int connector_count = 0; 1824f453ba04SDave Airlie int crtc_count = 0; 1825f453ba04SDave Airlie int fb_count = 0; 1826f453ba04SDave Airlie int encoder_count = 0; 18279c7060f7SDaniel Vetter int copied = 0; 1828f453ba04SDave Airlie uint32_t __user *fb_id; 1829f453ba04SDave Airlie uint32_t __user *crtc_id; 1830f453ba04SDave Airlie uint32_t __user *connector_id; 1831f453ba04SDave Airlie uint32_t __user *encoder_id; 1832f453ba04SDave Airlie 1833fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1834fb3b06c8SDave Airlie return -EINVAL; 1835fb3b06c8SDave Airlie 1836f453ba04SDave Airlie 18374b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 1838f453ba04SDave Airlie /* 1839f453ba04SDave Airlie * For the non-control nodes we need to limit the list of resources 1840f453ba04SDave Airlie * by IDs in the group list for this node 1841f453ba04SDave Airlie */ 1842f453ba04SDave Airlie list_for_each(lh, &file_priv->fbs) 1843f453ba04SDave Airlie fb_count++; 1844f453ba04SDave Airlie 18454b096ac1SDaniel Vetter /* handle this in 4 parts */ 18464b096ac1SDaniel Vetter /* FBs */ 18474b096ac1SDaniel Vetter if (card_res->count_fbs >= fb_count) { 18484b096ac1SDaniel Vetter copied = 0; 18494b096ac1SDaniel Vetter fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; 18504b096ac1SDaniel Vetter list_for_each_entry(fb, &file_priv->fbs, filp_head) { 18514b096ac1SDaniel Vetter if (put_user(fb->base.id, fb_id + copied)) { 18524b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 18534b096ac1SDaniel Vetter return -EFAULT; 18544b096ac1SDaniel Vetter } 18554b096ac1SDaniel Vetter copied++; 18564b096ac1SDaniel Vetter } 18574b096ac1SDaniel Vetter } 18584b096ac1SDaniel Vetter card_res->count_fbs = fb_count; 18594b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 18604b096ac1SDaniel Vetter 1861fcf93f69SDaniel Vetter /* mode_config.mutex protects the connector list against e.g. DP MST 1862fcf93f69SDaniel Vetter * connector hot-adding. CRTC/Plane lists are invariant. */ 1863fcf93f69SDaniel Vetter mutex_lock(&dev->mode_config.mutex); 1864e4f62546SDaniel Vetter drm_for_each_crtc(crtc, dev) 1865f453ba04SDave Airlie crtc_count++; 1866f453ba04SDave Airlie 18679a9f5ce8SDaniel Vetter drm_for_each_connector(connector, dev) 1868f453ba04SDave Airlie connector_count++; 1869f453ba04SDave Airlie 1870e4f62546SDaniel Vetter drm_for_each_encoder(encoder, dev) 1871f453ba04SDave Airlie encoder_count++; 1872f453ba04SDave Airlie 1873f453ba04SDave Airlie card_res->max_height = dev->mode_config.max_height; 1874f453ba04SDave Airlie card_res->min_height = dev->mode_config.min_height; 1875f453ba04SDave Airlie card_res->max_width = dev->mode_config.max_width; 1876f453ba04SDave Airlie card_res->min_width = dev->mode_config.min_width; 1877f453ba04SDave Airlie 1878f453ba04SDave Airlie /* CRTCs */ 1879f453ba04SDave Airlie if (card_res->count_crtcs >= crtc_count) { 1880f453ba04SDave Airlie copied = 0; 1881f453ba04SDave Airlie crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; 18826295d607SDaniel Vetter drm_for_each_crtc(crtc, dev) { 1883f453ba04SDave Airlie if (put_user(crtc->base.id, crtc_id + copied)) { 1884f453ba04SDave Airlie ret = -EFAULT; 1885f453ba04SDave Airlie goto out; 1886f453ba04SDave Airlie } 1887f453ba04SDave Airlie copied++; 1888f453ba04SDave Airlie } 1889f453ba04SDave Airlie } 1890f453ba04SDave Airlie card_res->count_crtcs = crtc_count; 1891f453ba04SDave Airlie 1892f453ba04SDave Airlie /* Encoders */ 1893f453ba04SDave Airlie if (card_res->count_encoders >= encoder_count) { 1894f453ba04SDave Airlie copied = 0; 1895f453ba04SDave Airlie encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; 18966295d607SDaniel Vetter drm_for_each_encoder(encoder, dev) { 1897f453ba04SDave Airlie if (put_user(encoder->base.id, encoder_id + 1898f453ba04SDave Airlie copied)) { 1899f453ba04SDave Airlie ret = -EFAULT; 1900f453ba04SDave Airlie goto out; 1901f453ba04SDave Airlie } 1902f453ba04SDave Airlie copied++; 1903f453ba04SDave Airlie } 1904f453ba04SDave Airlie } 1905f453ba04SDave Airlie card_res->count_encoders = encoder_count; 1906f453ba04SDave Airlie 1907f453ba04SDave Airlie /* Connectors */ 1908f453ba04SDave Airlie if (card_res->count_connectors >= connector_count) { 1909f453ba04SDave Airlie copied = 0; 1910f453ba04SDave Airlie connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; 19116295d607SDaniel Vetter drm_for_each_connector(connector, dev) { 1912f453ba04SDave Airlie if (put_user(connector->base.id, 1913f453ba04SDave Airlie connector_id + copied)) { 1914f453ba04SDave Airlie ret = -EFAULT; 1915f453ba04SDave Airlie goto out; 1916f453ba04SDave Airlie } 1917f453ba04SDave Airlie copied++; 1918f453ba04SDave Airlie } 1919f453ba04SDave Airlie } 1920f453ba04SDave Airlie card_res->count_connectors = connector_count; 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 20807b24056bSDaniel Vetter mutex_lock(&dev->mode_config.mutex); 2081f453ba04SDave Airlie 2082b164d31fSDave Airlie connector = drm_connector_lookup(dev, out_resp->connector_id); 2083a2b34e22SRob Clark if (!connector) { 2084f27657f2SVille Syrjälä ret = -ENOENT; 208504bdf441STommi Rantala goto out_unlock; 2086f453ba04SDave Airlie } 2087f453ba04SDave Airlie 208801073b08SThierry Reding for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) 208901073b08SThierry Reding if (connector->encoder_ids[i] != 0) 2090f453ba04SDave Airlie encoders_count++; 2091f453ba04SDave Airlie 2092f453ba04SDave Airlie if (out_resp->count_modes == 0) { 2093f453ba04SDave Airlie connector->funcs->fill_modes(connector, 2094f453ba04SDave Airlie dev->mode_config.max_width, 2095f453ba04SDave Airlie dev->mode_config.max_height); 2096f453ba04SDave Airlie } 2097f453ba04SDave Airlie 2098f453ba04SDave Airlie /* delayed so we get modes regardless of pre-fill_modes state */ 2099f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) 210061d8e328SDamien Lespiau if (drm_mode_expose_to_userspace(mode, file_priv)) 2101f453ba04SDave Airlie mode_count++; 2102f453ba04SDave Airlie 2103f453ba04SDave Airlie out_resp->connector_id = connector->base.id; 2104f453ba04SDave Airlie out_resp->connector_type = connector->connector_type; 2105f453ba04SDave Airlie out_resp->connector_type_id = connector->connector_type_id; 2106f453ba04SDave Airlie out_resp->mm_width = connector->display_info.width_mm; 2107f453ba04SDave Airlie out_resp->mm_height = connector->display_info.height_mm; 2108f453ba04SDave Airlie out_resp->subpixel = connector->display_info.subpixel_order; 2109f453ba04SDave Airlie out_resp->connection = connector->status; 21102caa80e7SDaniel Vetter 21112caa80e7SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2112abd69c55SDaniel Vetter encoder = drm_connector_get_encoder(connector); 2113abd69c55SDaniel Vetter if (encoder) 2114abd69c55SDaniel Vetter out_resp->encoder_id = encoder->base.id; 2115f453ba04SDave Airlie else 2116f453ba04SDave Airlie out_resp->encoder_id = 0; 2117f453ba04SDave Airlie 2118f453ba04SDave Airlie /* 2119f453ba04SDave Airlie * This ioctl is called twice, once to determine how much space is 2120f453ba04SDave Airlie * needed, and the 2nd time to fill it. 2121f453ba04SDave Airlie */ 2122f453ba04SDave Airlie if ((out_resp->count_modes >= mode_count) && mode_count) { 2123f453ba04SDave Airlie copied = 0; 212481f6c7f8SVille Syrjälä mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 2125f453ba04SDave Airlie list_for_each_entry(mode, &connector->modes, head) { 212661d8e328SDamien Lespiau if (!drm_mode_expose_to_userspace(mode, file_priv)) 212761d8e328SDamien Lespiau continue; 212861d8e328SDamien Lespiau 2129934a8a89SDaniel Stone drm_mode_convert_to_umode(&u_mode, mode); 2130f453ba04SDave Airlie if (copy_to_user(mode_ptr + copied, 2131f453ba04SDave Airlie &u_mode, sizeof(u_mode))) { 2132f453ba04SDave Airlie ret = -EFAULT; 2133f453ba04SDave Airlie goto out; 2134f453ba04SDave Airlie } 2135f453ba04SDave Airlie copied++; 2136f453ba04SDave Airlie } 2137f453ba04SDave Airlie } 2138f453ba04SDave Airlie out_resp->count_modes = mode_count; 2139f453ba04SDave Airlie 214088a48e29SRob Clark ret = get_properties(&connector->base, file_priv->atomic, 214195cbf110SRob Clark (uint32_t __user *)(unsigned long)(out_resp->props_ptr), 214295cbf110SRob Clark (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), 214395cbf110SRob Clark &out_resp->count_props); 214422b8b13bSRob Clark if (ret) 2145f453ba04SDave Airlie goto out; 2146f453ba04SDave Airlie 2147f453ba04SDave Airlie if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 2148f453ba04SDave Airlie copied = 0; 214981f6c7f8SVille Syrjälä encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 2150f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 2151f453ba04SDave Airlie if (connector->encoder_ids[i] != 0) { 2152f453ba04SDave Airlie if (put_user(connector->encoder_ids[i], 2153f453ba04SDave Airlie encoder_ptr + copied)) { 2154f453ba04SDave Airlie ret = -EFAULT; 2155f453ba04SDave Airlie goto out; 2156f453ba04SDave Airlie } 2157f453ba04SDave Airlie copied++; 2158f453ba04SDave Airlie } 2159f453ba04SDave Airlie } 2160f453ba04SDave Airlie } 2161f453ba04SDave Airlie out_resp->count_encoders = encoders_count; 2162f453ba04SDave Airlie 2163f453ba04SDave Airlie out: 2164ccfc0865SRob Clark drm_modeset_unlock(&dev->mode_config.connection_mutex); 216504bdf441STommi Rantala 2166b164d31fSDave Airlie drm_connector_unreference(connector); 216704bdf441STommi Rantala out_unlock: 21687b24056bSDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 21697b24056bSDaniel Vetter 2170f453ba04SDave Airlie return ret; 2171f453ba04SDave Airlie } 2172f453ba04SDave Airlie 2173abd69c55SDaniel Vetter static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) 2174abd69c55SDaniel Vetter { 2175abd69c55SDaniel Vetter struct drm_connector *connector; 2176abd69c55SDaniel Vetter struct drm_device *dev = encoder->dev; 2177abd69c55SDaniel Vetter bool uses_atomic = false; 2178abd69c55SDaniel Vetter 2179abd69c55SDaniel Vetter /* For atomic drivers only state objects are synchronously updated and 2180abd69c55SDaniel Vetter * protected by modeset locks, so check those first. */ 21816295d607SDaniel Vetter drm_for_each_connector(connector, dev) { 2182abd69c55SDaniel Vetter if (!connector->state) 2183abd69c55SDaniel Vetter continue; 2184abd69c55SDaniel Vetter 2185abd69c55SDaniel Vetter uses_atomic = true; 2186abd69c55SDaniel Vetter 2187abd69c55SDaniel Vetter if (connector->state->best_encoder != encoder) 2188abd69c55SDaniel Vetter continue; 2189abd69c55SDaniel Vetter 2190abd69c55SDaniel Vetter return connector->state->crtc; 2191abd69c55SDaniel Vetter } 2192abd69c55SDaniel Vetter 2193abd69c55SDaniel Vetter /* Don't return stale data (e.g. pending async disable). */ 2194abd69c55SDaniel Vetter if (uses_atomic) 2195abd69c55SDaniel Vetter return NULL; 2196abd69c55SDaniel Vetter 2197abd69c55SDaniel Vetter return encoder->crtc; 2198abd69c55SDaniel Vetter } 2199abd69c55SDaniel Vetter 2200c8e32cc1SDaniel Vetter /** 2201c8e32cc1SDaniel Vetter * drm_mode_getencoder - get encoder configuration 2202c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 2203c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 2204c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 2205c8e32cc1SDaniel Vetter * 2206c8e32cc1SDaniel Vetter * Construct a encoder configuration structure to return to the user. 2207c8e32cc1SDaniel Vetter * 2208c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2209c8e32cc1SDaniel Vetter * 2210c8e32cc1SDaniel Vetter * Returns: 22111a498633SDaniel Vetter * Zero on success, negative errno on failure. 2212c8e32cc1SDaniel Vetter */ 2213f453ba04SDave Airlie int drm_mode_getencoder(struct drm_device *dev, void *data, 2214f453ba04SDave Airlie struct drm_file *file_priv) 2215f453ba04SDave Airlie { 2216f453ba04SDave Airlie struct drm_mode_get_encoder *enc_resp = data; 2217f453ba04SDave Airlie struct drm_encoder *encoder; 2218abd69c55SDaniel Vetter struct drm_crtc *crtc; 2219f453ba04SDave Airlie 2220fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2221fb3b06c8SDave Airlie return -EINVAL; 2222fb3b06c8SDave Airlie 2223a2b34e22SRob Clark encoder = drm_encoder_find(dev, enc_resp->encoder_id); 2224fcf93f69SDaniel Vetter if (!encoder) 2225fcf93f69SDaniel Vetter return -ENOENT; 2226f453ba04SDave Airlie 2227fcf93f69SDaniel Vetter drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 2228abd69c55SDaniel Vetter crtc = drm_encoder_get_crtc(encoder); 2229abd69c55SDaniel Vetter if (crtc) 2230abd69c55SDaniel Vetter enc_resp->crtc_id = crtc->base.id; 2231f453ba04SDave Airlie else 2232f453ba04SDave Airlie enc_resp->crtc_id = 0; 2233fcf93f69SDaniel Vetter drm_modeset_unlock(&dev->mode_config.connection_mutex); 2234fcf93f69SDaniel Vetter 2235f453ba04SDave Airlie enc_resp->encoder_type = encoder->encoder_type; 2236f453ba04SDave Airlie enc_resp->encoder_id = encoder->base.id; 2237f453ba04SDave Airlie enc_resp->possible_crtcs = encoder->possible_crtcs; 2238f453ba04SDave Airlie enc_resp->possible_clones = encoder->possible_clones; 2239f453ba04SDave Airlie 2240baf698b0SDaniel Vetter return 0; 2241f453ba04SDave Airlie } 2242f453ba04SDave Airlie 2243f453ba04SDave Airlie /** 2244c8e32cc1SDaniel Vetter * drm_mode_getplane_res - enumerate all plane resources 22458cf5c917SJesse Barnes * @dev: DRM device 22468cf5c917SJesse Barnes * @data: ioctl data 22478cf5c917SJesse Barnes * @file_priv: DRM file info 22488cf5c917SJesse Barnes * 2249c8e32cc1SDaniel Vetter * Construct a list of plane ids to return to the user. 2250c8e32cc1SDaniel Vetter * 2251c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2252c8e32cc1SDaniel Vetter * 2253c8e32cc1SDaniel Vetter * Returns: 22541a498633SDaniel Vetter * Zero on success, negative errno on failure. 22558cf5c917SJesse Barnes */ 22568cf5c917SJesse Barnes int drm_mode_getplane_res(struct drm_device *dev, void *data, 22578cf5c917SJesse Barnes struct drm_file *file_priv) 22588cf5c917SJesse Barnes { 22598cf5c917SJesse Barnes struct drm_mode_get_plane_res *plane_resp = data; 22608cf5c917SJesse Barnes struct drm_mode_config *config; 22618cf5c917SJesse Barnes struct drm_plane *plane; 22628cf5c917SJesse Barnes uint32_t __user *plane_ptr; 2263fcf93f69SDaniel Vetter int copied = 0; 2264681e7ec7SMatt Roper unsigned num_planes; 22658cf5c917SJesse Barnes 22668cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 22678cf5c917SJesse Barnes return -EINVAL; 22688cf5c917SJesse Barnes 22698cf5c917SJesse Barnes config = &dev->mode_config; 22708cf5c917SJesse Barnes 2271681e7ec7SMatt Roper if (file_priv->universal_planes) 2272681e7ec7SMatt Roper num_planes = config->num_total_plane; 2273681e7ec7SMatt Roper else 2274681e7ec7SMatt Roper num_planes = config->num_overlay_plane; 2275681e7ec7SMatt Roper 22768cf5c917SJesse Barnes /* 22778cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 22788cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 22798cf5c917SJesse Barnes */ 2280681e7ec7SMatt Roper if (num_planes && 2281681e7ec7SMatt Roper (plane_resp->count_planes >= num_planes)) { 228281f6c7f8SVille Syrjälä plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; 22838cf5c917SJesse Barnes 2284fcf93f69SDaniel Vetter /* Plane lists are invariant, no locking needed. */ 2285e4f62546SDaniel Vetter drm_for_each_plane(plane, dev) { 2286681e7ec7SMatt Roper /* 2287681e7ec7SMatt Roper * Unless userspace set the 'universal planes' 2288681e7ec7SMatt Roper * capability bit, only advertise overlays. 2289681e7ec7SMatt Roper */ 2290681e7ec7SMatt Roper if (plane->type != DRM_PLANE_TYPE_OVERLAY && 2291681e7ec7SMatt Roper !file_priv->universal_planes) 2292e27dde3eSMatt Roper continue; 2293e27dde3eSMatt Roper 2294fcf93f69SDaniel Vetter if (put_user(plane->base.id, plane_ptr + copied)) 2295fcf93f69SDaniel Vetter return -EFAULT; 22968cf5c917SJesse Barnes copied++; 22978cf5c917SJesse Barnes } 22988cf5c917SJesse Barnes } 2299681e7ec7SMatt Roper plane_resp->count_planes = num_planes; 23008cf5c917SJesse Barnes 2301fcf93f69SDaniel Vetter return 0; 23028cf5c917SJesse Barnes } 23038cf5c917SJesse Barnes 23048cf5c917SJesse Barnes /** 2305c8e32cc1SDaniel Vetter * drm_mode_getplane - get plane configuration 23068cf5c917SJesse Barnes * @dev: DRM device 23078cf5c917SJesse Barnes * @data: ioctl data 23088cf5c917SJesse Barnes * @file_priv: DRM file info 23098cf5c917SJesse Barnes * 2310c8e32cc1SDaniel Vetter * Construct a plane configuration structure to return to the user. 2311c8e32cc1SDaniel Vetter * 2312c8e32cc1SDaniel Vetter * Called by the user via ioctl. 2313c8e32cc1SDaniel Vetter * 2314c8e32cc1SDaniel Vetter * Returns: 23151a498633SDaniel Vetter * Zero on success, negative errno on failure. 23168cf5c917SJesse Barnes */ 23178cf5c917SJesse Barnes int drm_mode_getplane(struct drm_device *dev, void *data, 23188cf5c917SJesse Barnes struct drm_file *file_priv) 23198cf5c917SJesse Barnes { 23208cf5c917SJesse Barnes struct drm_mode_get_plane *plane_resp = data; 23218cf5c917SJesse Barnes struct drm_plane *plane; 23228cf5c917SJesse Barnes uint32_t __user *format_ptr; 23238cf5c917SJesse Barnes 23248cf5c917SJesse Barnes if (!drm_core_check_feature(dev, DRIVER_MODESET)) 23258cf5c917SJesse Barnes return -EINVAL; 23268cf5c917SJesse Barnes 2327a2b34e22SRob Clark plane = drm_plane_find(dev, plane_resp->plane_id); 2328fcf93f69SDaniel Vetter if (!plane) 2329fcf93f69SDaniel Vetter return -ENOENT; 23308cf5c917SJesse Barnes 2331fcf93f69SDaniel Vetter drm_modeset_lock(&plane->mutex, NULL); 23328cf5c917SJesse Barnes if (plane->crtc) 23338cf5c917SJesse Barnes plane_resp->crtc_id = plane->crtc->base.id; 23348cf5c917SJesse Barnes else 23358cf5c917SJesse Barnes plane_resp->crtc_id = 0; 23368cf5c917SJesse Barnes 23378cf5c917SJesse Barnes if (plane->fb) 23388cf5c917SJesse Barnes plane_resp->fb_id = plane->fb->base.id; 23398cf5c917SJesse Barnes else 23408cf5c917SJesse Barnes plane_resp->fb_id = 0; 2341fcf93f69SDaniel Vetter drm_modeset_unlock(&plane->mutex); 23428cf5c917SJesse Barnes 23438cf5c917SJesse Barnes plane_resp->plane_id = plane->base.id; 23448cf5c917SJesse Barnes plane_resp->possible_crtcs = plane->possible_crtcs; 2345778ad903SVille Syrjälä plane_resp->gamma_size = 0; 23468cf5c917SJesse Barnes 23478cf5c917SJesse Barnes /* 23488cf5c917SJesse Barnes * This ioctl is called twice, once to determine how much space is 23498cf5c917SJesse Barnes * needed, and the 2nd time to fill it. 23508cf5c917SJesse Barnes */ 23518cf5c917SJesse Barnes if (plane->format_count && 23528cf5c917SJesse Barnes (plane_resp->count_format_types >= plane->format_count)) { 235381f6c7f8SVille Syrjälä format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; 23548cf5c917SJesse Barnes if (copy_to_user(format_ptr, 23558cf5c917SJesse Barnes plane->format_types, 23568cf5c917SJesse Barnes sizeof(uint32_t) * plane->format_count)) { 2357fcf93f69SDaniel Vetter return -EFAULT; 23588cf5c917SJesse Barnes } 23598cf5c917SJesse Barnes } 23608cf5c917SJesse Barnes plane_resp->count_format_types = plane->format_count; 23618cf5c917SJesse Barnes 2362baf698b0SDaniel Vetter return 0; 23638cf5c917SJesse Barnes } 23648cf5c917SJesse Barnes 2365ead8610dSLaurent Pinchart /** 2366ead8610dSLaurent Pinchart * drm_plane_check_pixel_format - Check if the plane supports the pixel format 2367ead8610dSLaurent Pinchart * @plane: plane to check for format support 2368ead8610dSLaurent Pinchart * @format: the pixel format 2369ead8610dSLaurent Pinchart * 2370ead8610dSLaurent Pinchart * Returns: 2371ead8610dSLaurent Pinchart * Zero of @plane has @format in its list of supported pixel formats, -EINVAL 2372ead8610dSLaurent Pinchart * otherwise. 2373ead8610dSLaurent Pinchart */ 2374ead8610dSLaurent Pinchart int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) 2375ead8610dSLaurent Pinchart { 2376ead8610dSLaurent Pinchart unsigned int i; 2377ead8610dSLaurent Pinchart 2378ead8610dSLaurent Pinchart for (i = 0; i < plane->format_count; i++) { 2379ead8610dSLaurent Pinchart if (format == plane->format_types[i]) 2380ead8610dSLaurent Pinchart return 0; 2381ead8610dSLaurent Pinchart } 2382ead8610dSLaurent Pinchart 2383ead8610dSLaurent Pinchart return -EINVAL; 2384ead8610dSLaurent Pinchart } 2385ead8610dSLaurent Pinchart 2386ce8d9eccSVille Syrjälä static int check_src_coords(uint32_t src_x, uint32_t src_y, 2387ce8d9eccSVille Syrjälä uint32_t src_w, uint32_t src_h, 2388ce8d9eccSVille Syrjälä const struct drm_framebuffer *fb) 2389ce8d9eccSVille Syrjälä { 2390ce8d9eccSVille Syrjälä unsigned int fb_width, fb_height; 2391ce8d9eccSVille Syrjälä 2392ce8d9eccSVille Syrjälä fb_width = fb->width << 16; 2393ce8d9eccSVille Syrjälä fb_height = fb->height << 16; 2394ce8d9eccSVille Syrjälä 2395ce8d9eccSVille Syrjälä /* Make sure source coordinates are inside the fb. */ 2396ce8d9eccSVille Syrjälä if (src_w > fb_width || 2397ce8d9eccSVille Syrjälä src_x > fb_width - src_w || 2398ce8d9eccSVille Syrjälä src_h > fb_height || 2399ce8d9eccSVille Syrjälä src_y > fb_height - src_h) { 2400ce8d9eccSVille Syrjälä DRM_DEBUG_KMS("Invalid source coordinates " 2401ce8d9eccSVille Syrjälä "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", 2402ce8d9eccSVille Syrjälä src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, 2403ce8d9eccSVille Syrjälä src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, 2404ce8d9eccSVille Syrjälä src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, 2405ce8d9eccSVille Syrjälä src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); 2406ce8d9eccSVille Syrjälä return -ENOSPC; 2407ce8d9eccSVille Syrjälä } 2408ce8d9eccSVille Syrjälä 2409ce8d9eccSVille Syrjälä return 0; 2410ce8d9eccSVille Syrjälä } 2411ce8d9eccSVille Syrjälä 2412b36552b3SMatt Roper /* 2413b36552b3SMatt Roper * setplane_internal - setplane handler for internal callers 24148cf5c917SJesse Barnes * 2415b36552b3SMatt Roper * Note that we assume an extra reference has already been taken on fb. If the 2416b36552b3SMatt Roper * update fails, this reference will be dropped before return; if it succeeds, 2417b36552b3SMatt Roper * the previous framebuffer (if any) will be unreferenced instead. 2418c8e32cc1SDaniel Vetter * 2419b36552b3SMatt Roper * src_{x,y,w,h} are provided in 16.16 fixed point format 24208cf5c917SJesse Barnes */ 2421f2b50c11SDaniel Vetter static int __setplane_internal(struct drm_plane *plane, 242217cfd91fSChris Wilson struct drm_crtc *crtc, 2423b36552b3SMatt Roper struct drm_framebuffer *fb, 2424b36552b3SMatt Roper int32_t crtc_x, int32_t crtc_y, 2425b36552b3SMatt Roper uint32_t crtc_w, uint32_t crtc_h, 2426b36552b3SMatt Roper /* src_{x,y,w,h} values are 16.16 fixed point */ 2427b36552b3SMatt Roper uint32_t src_x, uint32_t src_y, 2428b36552b3SMatt Roper uint32_t src_w, uint32_t src_h) 24298cf5c917SJesse Barnes { 24308cf5c917SJesse Barnes int ret = 0; 24318cf5c917SJesse Barnes 24328cf5c917SJesse Barnes /* No fb means shut it down */ 2433b36552b3SMatt Roper if (!fb) { 24343d30a59bSDaniel Vetter plane->old_fb = plane->fb; 2435731cce48SDaniel Vetter ret = plane->funcs->disable_plane(plane); 2436731cce48SDaniel Vetter if (!ret) { 2437e5e3b44cSVille Syrjälä plane->crtc = NULL; 2438e5e3b44cSVille Syrjälä plane->fb = NULL; 2439731cce48SDaniel Vetter } else { 24403d30a59bSDaniel Vetter plane->old_fb = NULL; 2441731cce48SDaniel Vetter } 24428cf5c917SJesse Barnes goto out; 24438cf5c917SJesse Barnes } 24448cf5c917SJesse Barnes 24457f994f3fSMatt Roper /* Check whether this plane is usable on this CRTC */ 24467f994f3fSMatt Roper if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { 24477f994f3fSMatt Roper DRM_DEBUG_KMS("Invalid crtc for plane\n"); 24487f994f3fSMatt Roper ret = -EINVAL; 24497f994f3fSMatt Roper goto out; 24507f994f3fSMatt Roper } 24517f994f3fSMatt Roper 245262443be6SVille Syrjälä /* Check whether this plane supports the fb pixel format. */ 2453ead8610dSLaurent Pinchart ret = drm_plane_check_pixel_format(plane, fb->pixel_format); 2454ead8610dSLaurent Pinchart if (ret) { 24556ba6d03eSVille Syrjälä DRM_DEBUG_KMS("Invalid pixel format %s\n", 24566ba6d03eSVille Syrjälä drm_get_format_name(fb->pixel_format)); 245762443be6SVille Syrjälä goto out; 245862443be6SVille Syrjälä } 245962443be6SVille Syrjälä 24603968be94SMatt Roper /* Give drivers some help against integer overflows */ 24613968be94SMatt Roper if (crtc_w > INT_MAX || 24623968be94SMatt Roper crtc_x > INT_MAX - (int32_t) crtc_w || 24633968be94SMatt Roper crtc_h > INT_MAX || 24643968be94SMatt Roper crtc_y > INT_MAX - (int32_t) crtc_h) { 24653968be94SMatt Roper DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", 24663968be94SMatt Roper crtc_w, crtc_h, crtc_x, crtc_y); 2467c390eed0SVille Syrjälä ret = -ERANGE; 246842ef8789SVille Syrjälä goto out; 246942ef8789SVille Syrjälä } 247042ef8789SVille Syrjälä 2471ce8d9eccSVille Syrjälä ret = check_src_coords(src_x, src_y, src_w, src_h, fb); 2472ce8d9eccSVille Syrjälä if (ret) 2473f453ba04SDave Airlie goto out; 2474f453ba04SDave Airlie 24753d30a59bSDaniel Vetter plane->old_fb = plane->fb; 2476f453ba04SDave Airlie ret = plane->funcs->update_plane(plane, crtc, fb, 2477b36552b3SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 2478b36552b3SMatt Roper src_x, src_y, src_w, src_h); 2479f453ba04SDave Airlie if (!ret) { 2480f453ba04SDave Airlie plane->crtc = crtc; 2481f453ba04SDave Airlie plane->fb = fb; 248235f8badcSDaniel Vetter fb = NULL; 24830fe27f06SDaniel Vetter } else { 24843d30a59bSDaniel Vetter plane->old_fb = NULL; 2485f453ba04SDave Airlie } 2486f453ba04SDave Airlie 2487f453ba04SDave Airlie out: 24886c2a7532SDaniel Vetter if (fb) 24896c2a7532SDaniel Vetter drm_framebuffer_unreference(fb); 24903d30a59bSDaniel Vetter if (plane->old_fb) 24913d30a59bSDaniel Vetter drm_framebuffer_unreference(plane->old_fb); 24923d30a59bSDaniel Vetter plane->old_fb = NULL; 2493f453ba04SDave Airlie 2494f453ba04SDave Airlie return ret; 2495f2b50c11SDaniel Vetter } 2496b36552b3SMatt Roper 2497f2b50c11SDaniel Vetter static int setplane_internal(struct drm_plane *plane, 2498f2b50c11SDaniel Vetter struct drm_crtc *crtc, 2499f2b50c11SDaniel Vetter struct drm_framebuffer *fb, 2500f2b50c11SDaniel Vetter int32_t crtc_x, int32_t crtc_y, 2501f2b50c11SDaniel Vetter uint32_t crtc_w, uint32_t crtc_h, 2502f2b50c11SDaniel Vetter /* src_{x,y,w,h} values are 16.16 fixed point */ 2503f2b50c11SDaniel Vetter uint32_t src_x, uint32_t src_y, 2504f2b50c11SDaniel Vetter uint32_t src_w, uint32_t src_h) 2505f2b50c11SDaniel Vetter { 2506f2b50c11SDaniel Vetter int ret; 2507f2b50c11SDaniel Vetter 2508f2b50c11SDaniel Vetter drm_modeset_lock_all(plane->dev); 2509f2b50c11SDaniel Vetter ret = __setplane_internal(plane, crtc, fb, 2510f2b50c11SDaniel Vetter crtc_x, crtc_y, crtc_w, crtc_h, 2511f2b50c11SDaniel Vetter src_x, src_y, src_w, src_h); 2512f2b50c11SDaniel Vetter drm_modeset_unlock_all(plane->dev); 2513f2b50c11SDaniel Vetter 2514f2b50c11SDaniel Vetter return ret; 2515b36552b3SMatt Roper } 2516b36552b3SMatt Roper 2517b36552b3SMatt Roper /** 2518b36552b3SMatt Roper * drm_mode_setplane - configure a plane's configuration 2519b36552b3SMatt Roper * @dev: DRM device 2520b36552b3SMatt Roper * @data: ioctl data* 2521b36552b3SMatt Roper * @file_priv: DRM file info 2522b36552b3SMatt Roper * 2523b36552b3SMatt Roper * Set plane configuration, including placement, fb, scaling, and other factors. 2524b36552b3SMatt Roper * Or pass a NULL fb to disable (planes may be disabled without providing a 2525b36552b3SMatt Roper * valid crtc). 2526b36552b3SMatt Roper * 2527b36552b3SMatt Roper * Returns: 25281a498633SDaniel Vetter * Zero on success, negative errno on failure. 2529b36552b3SMatt Roper */ 2530b36552b3SMatt Roper int drm_mode_setplane(struct drm_device *dev, void *data, 2531b36552b3SMatt Roper struct drm_file *file_priv) 2532b36552b3SMatt Roper { 2533b36552b3SMatt Roper struct drm_mode_set_plane *plane_req = data; 2534b36552b3SMatt Roper struct drm_plane *plane; 2535b36552b3SMatt Roper struct drm_crtc *crtc = NULL; 2536b36552b3SMatt Roper struct drm_framebuffer *fb = NULL; 2537b36552b3SMatt Roper 2538b36552b3SMatt Roper if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2539b36552b3SMatt Roper return -EINVAL; 2540b36552b3SMatt Roper 2541b36552b3SMatt Roper /* 2542b36552b3SMatt Roper * First, find the plane, crtc, and fb objects. If not available, 2543b36552b3SMatt Roper * we don't bother to call the driver. 2544b36552b3SMatt Roper */ 2545933f622fSRob Clark plane = drm_plane_find(dev, plane_req->plane_id); 2546933f622fSRob Clark if (!plane) { 2547b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown plane ID %d\n", 2548b36552b3SMatt Roper plane_req->plane_id); 2549b36552b3SMatt Roper return -ENOENT; 2550b36552b3SMatt Roper } 2551b36552b3SMatt Roper 2552b36552b3SMatt Roper if (plane_req->fb_id) { 2553b36552b3SMatt Roper fb = drm_framebuffer_lookup(dev, plane_req->fb_id); 2554b36552b3SMatt Roper if (!fb) { 2555b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", 2556b36552b3SMatt Roper plane_req->fb_id); 2557b36552b3SMatt Roper return -ENOENT; 2558b36552b3SMatt Roper } 2559b36552b3SMatt Roper 2560933f622fSRob Clark crtc = drm_crtc_find(dev, plane_req->crtc_id); 2561933f622fSRob Clark if (!crtc) { 2562b36552b3SMatt Roper DRM_DEBUG_KMS("Unknown crtc ID %d\n", 2563b36552b3SMatt Roper plane_req->crtc_id); 2564b36552b3SMatt Roper return -ENOENT; 2565b36552b3SMatt Roper } 2566b36552b3SMatt Roper } 2567b36552b3SMatt Roper 2568161d0dc1SMatt Roper /* 2569161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 2570161d0dc1SMatt Roper * framebuffer depending on success. 2571161d0dc1SMatt Roper */ 257217cfd91fSChris Wilson return setplane_internal(plane, crtc, fb, 2573b36552b3SMatt Roper plane_req->crtc_x, plane_req->crtc_y, 2574b36552b3SMatt Roper plane_req->crtc_w, plane_req->crtc_h, 2575b36552b3SMatt Roper plane_req->src_x, plane_req->src_y, 2576b36552b3SMatt Roper plane_req->src_w, plane_req->src_h); 2577f453ba04SDave Airlie } 2578f453ba04SDave Airlie 2579f453ba04SDave Airlie /** 25802d13b679SDaniel Vetter * drm_mode_set_config_internal - helper to call ->set_config 25812d13b679SDaniel Vetter * @set: modeset config to set 25822d13b679SDaniel Vetter * 25832d13b679SDaniel Vetter * This is a little helper to wrap internal calls to the ->set_config driver 25842d13b679SDaniel Vetter * interface. The only thing it adds is correct refcounting dance. 2585c8e32cc1SDaniel Vetter * 2586c8e32cc1SDaniel Vetter * Returns: 25871a498633SDaniel Vetter * Zero on success, negative errno on failure. 25882d13b679SDaniel Vetter */ 25892d13b679SDaniel Vetter int drm_mode_set_config_internal(struct drm_mode_set *set) 25902d13b679SDaniel Vetter { 25912d13b679SDaniel Vetter struct drm_crtc *crtc = set->crtc; 25925cef29aaSDaniel Vetter struct drm_framebuffer *fb; 25935cef29aaSDaniel Vetter struct drm_crtc *tmp; 2594b0d12325SDaniel Vetter int ret; 25952d13b679SDaniel Vetter 25965cef29aaSDaniel Vetter /* 25975cef29aaSDaniel Vetter * NOTE: ->set_config can also disable other crtcs (if we steal all 25985cef29aaSDaniel Vetter * connectors from it), hence we need to refcount the fbs across all 25995cef29aaSDaniel Vetter * crtcs. Atomic modeset will have saner semantics ... 26005cef29aaSDaniel Vetter */ 2601e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) 26023d30a59bSDaniel Vetter tmp->primary->old_fb = tmp->primary->fb; 26035cef29aaSDaniel Vetter 2604b0d12325SDaniel Vetter fb = set->fb; 2605b0d12325SDaniel Vetter 2606b0d12325SDaniel Vetter ret = crtc->funcs->set_config(set); 2607b0d12325SDaniel Vetter if (ret == 0) { 2608e13161afSMatt Roper crtc->primary->crtc = crtc; 26090fe27f06SDaniel Vetter crtc->primary->fb = fb; 26105cef29aaSDaniel Vetter } 2611cc85e121SDaniel Vetter 2612e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) { 2613f4510a27SMatt Roper if (tmp->primary->fb) 2614f4510a27SMatt Roper drm_framebuffer_reference(tmp->primary->fb); 26153d30a59bSDaniel Vetter if (tmp->primary->old_fb) 26163d30a59bSDaniel Vetter drm_framebuffer_unreference(tmp->primary->old_fb); 26173d30a59bSDaniel Vetter tmp->primary->old_fb = NULL; 2618b0d12325SDaniel Vetter } 2619b0d12325SDaniel Vetter 2620b0d12325SDaniel Vetter return ret; 26212d13b679SDaniel Vetter } 26222d13b679SDaniel Vetter EXPORT_SYMBOL(drm_mode_set_config_internal); 26232d13b679SDaniel Vetter 2624af93629dSMatt Roper /** 2625ecb7e16bSGustavo Padovan * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode 2626ecb7e16bSGustavo Padovan * @mode: mode to query 2627ecb7e16bSGustavo Padovan * @hdisplay: hdisplay value to fill in 2628ecb7e16bSGustavo Padovan * @vdisplay: vdisplay value to fill in 2629ecb7e16bSGustavo Padovan * 2630ecb7e16bSGustavo Padovan * The vdisplay value will be doubled if the specified mode is a stereo mode of 2631ecb7e16bSGustavo Padovan * the appropriate layout. 2632ecb7e16bSGustavo Padovan */ 2633ecb7e16bSGustavo Padovan void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, 2634ecb7e16bSGustavo Padovan int *hdisplay, int *vdisplay) 2635ecb7e16bSGustavo Padovan { 2636ecb7e16bSGustavo Padovan struct drm_display_mode adjusted; 2637ecb7e16bSGustavo Padovan 2638ecb7e16bSGustavo Padovan drm_mode_copy(&adjusted, mode); 2639ecb7e16bSGustavo Padovan drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); 2640ecb7e16bSGustavo Padovan *hdisplay = adjusted.crtc_hdisplay; 2641ecb7e16bSGustavo Padovan *vdisplay = adjusted.crtc_vdisplay; 2642ecb7e16bSGustavo Padovan } 2643ecb7e16bSGustavo Padovan EXPORT_SYMBOL(drm_crtc_get_hv_timing); 2644ecb7e16bSGustavo Padovan 2645ecb7e16bSGustavo Padovan /** 2646af93629dSMatt Roper * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the 2647af93629dSMatt Roper * CRTC viewport 2648af93629dSMatt Roper * @crtc: CRTC that framebuffer will be displayed on 2649af93629dSMatt Roper * @x: x panning 2650af93629dSMatt Roper * @y: y panning 2651af93629dSMatt Roper * @mode: mode that framebuffer will be displayed under 2652af93629dSMatt Roper * @fb: framebuffer to check size of 2653c11e9283SDamien Lespiau */ 2654af93629dSMatt Roper int drm_crtc_check_viewport(const struct drm_crtc *crtc, 2655c11e9283SDamien Lespiau int x, int y, 2656c11e9283SDamien Lespiau const struct drm_display_mode *mode, 2657c11e9283SDamien Lespiau const struct drm_framebuffer *fb) 2658c11e9283SDamien Lespiau 2659c11e9283SDamien Lespiau { 2660c11e9283SDamien Lespiau int hdisplay, vdisplay; 2661c11e9283SDamien Lespiau 2662ecb7e16bSGustavo Padovan drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); 2663a0c1bbb0SDamien Lespiau 266433e0be63SVille Syrjälä if (crtc->state && 266533e0be63SVille Syrjälä crtc->primary->state->rotation & (BIT(DRM_ROTATE_90) | 266633e0be63SVille Syrjälä BIT(DRM_ROTATE_270))) 2667c11e9283SDamien Lespiau swap(hdisplay, vdisplay); 2668c11e9283SDamien Lespiau 2669ce8d9eccSVille Syrjälä return check_src_coords(x << 16, y << 16, 2670ce8d9eccSVille Syrjälä hdisplay << 16, vdisplay << 16, fb); 2671c11e9283SDamien Lespiau } 2672af93629dSMatt Roper EXPORT_SYMBOL(drm_crtc_check_viewport); 2673c11e9283SDamien Lespiau 26742d13b679SDaniel Vetter /** 2675f453ba04SDave Airlie * drm_mode_setcrtc - set CRTC configuration 2676065a50edSDaniel Vetter * @dev: drm device for the ioctl 2677065a50edSDaniel Vetter * @data: data pointer for the ioctl 2678065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 2679f453ba04SDave Airlie * 2680f453ba04SDave Airlie * Build a new CRTC configuration based on user request. 2681f453ba04SDave Airlie * 2682f453ba04SDave Airlie * Called by the user via ioctl. 2683f453ba04SDave Airlie * 2684c8e32cc1SDaniel Vetter * Returns: 26851a498633SDaniel Vetter * Zero on success, negative errno on failure. 2686f453ba04SDave Airlie */ 2687f453ba04SDave Airlie int drm_mode_setcrtc(struct drm_device *dev, void *data, 2688f453ba04SDave Airlie struct drm_file *file_priv) 2689f453ba04SDave Airlie { 2690f453ba04SDave Airlie struct drm_mode_config *config = &dev->mode_config; 2691f453ba04SDave Airlie struct drm_mode_crtc *crtc_req = data; 26926653cc8dSVille Syrjälä struct drm_crtc *crtc; 2693f453ba04SDave Airlie struct drm_connector **connector_set = NULL, *connector; 2694f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 2695f453ba04SDave Airlie struct drm_display_mode *mode = NULL; 2696f453ba04SDave Airlie struct drm_mode_set set; 2697f453ba04SDave Airlie uint32_t __user *set_connectors_ptr; 26984a1b0714SLaurent Pinchart int ret; 2699f453ba04SDave Airlie int i; 2700f453ba04SDave Airlie 2701fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2702fb3b06c8SDave Airlie return -EINVAL; 2703fb3b06c8SDave Airlie 270401447e9fSZhao Junwang /* 270501447e9fSZhao Junwang * Universal plane src offsets are only 16.16, prevent havoc for 270601447e9fSZhao Junwang * drivers using universal plane code internally. 270701447e9fSZhao Junwang */ 270801447e9fSZhao Junwang if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) 27091d97e915SVille Syrjälä return -ERANGE; 27101d97e915SVille Syrjälä 271184849903SDaniel Vetter drm_modeset_lock_all(dev); 2712a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_req->crtc_id); 2713a2b34e22SRob Clark if (!crtc) { 271458367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 2715f27657f2SVille Syrjälä ret = -ENOENT; 2716f453ba04SDave Airlie goto out; 2717f453ba04SDave Airlie } 2718fa3ab4c2SVille Syrjälä DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); 2719f453ba04SDave Airlie 2720f453ba04SDave Airlie if (crtc_req->mode_valid) { 2721f453ba04SDave Airlie /* If we have a mode we need a framebuffer. */ 2722f453ba04SDave Airlie /* If we pass -1, set the mode with the currently bound fb */ 2723f453ba04SDave Airlie if (crtc_req->fb_id == -1) { 2724f4510a27SMatt Roper if (!crtc->primary->fb) { 27256653cc8dSVille Syrjälä DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 27266653cc8dSVille Syrjälä ret = -EINVAL; 27276653cc8dSVille Syrjälä goto out; 27286653cc8dSVille Syrjälä } 2729f4510a27SMatt Roper fb = crtc->primary->fb; 2730b0d12325SDaniel Vetter /* Make refcounting symmetric with the lookup path. */ 2731b0d12325SDaniel Vetter drm_framebuffer_reference(fb); 2732f453ba04SDave Airlie } else { 2733786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); 2734786b99edSDaniel Vetter if (!fb) { 273558367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown FB ID%d\n", 273658367ed6SZhao Yakui crtc_req->fb_id); 273737c4e705SVille Syrjälä ret = -ENOENT; 2738f453ba04SDave Airlie goto out; 2739f453ba04SDave Airlie } 2740f453ba04SDave Airlie } 2741f453ba04SDave Airlie 2742f453ba04SDave Airlie mode = drm_mode_create(dev); 2743ee34ab5bSVille Syrjälä if (!mode) { 2744ee34ab5bSVille Syrjälä ret = -ENOMEM; 2745ee34ab5bSVille Syrjälä goto out; 2746ee34ab5bSVille Syrjälä } 2747ee34ab5bSVille Syrjälä 2748934a8a89SDaniel Stone ret = drm_mode_convert_umode(mode, &crtc_req->mode); 274990367bf6SVille Syrjälä if (ret) { 275090367bf6SVille Syrjälä DRM_DEBUG_KMS("Invalid mode\n"); 275190367bf6SVille Syrjälä goto out; 275290367bf6SVille Syrjälä } 275390367bf6SVille Syrjälä 27547eb5f302SLaurent Pinchart /* 27557eb5f302SLaurent Pinchart * Check whether the primary plane supports the fb pixel format. 27567eb5f302SLaurent Pinchart * Drivers not implementing the universal planes API use a 27577eb5f302SLaurent Pinchart * default formats list provided by the DRM core which doesn't 27587eb5f302SLaurent Pinchart * match real hardware capabilities. Skip the check in that 27597eb5f302SLaurent Pinchart * case. 27607eb5f302SLaurent Pinchart */ 27617eb5f302SLaurent Pinchart if (!crtc->primary->format_default) { 27627eb5f302SLaurent Pinchart ret = drm_plane_check_pixel_format(crtc->primary, 27637eb5f302SLaurent Pinchart fb->pixel_format); 27647eb5f302SLaurent Pinchart if (ret) { 27657eb5f302SLaurent Pinchart DRM_DEBUG_KMS("Invalid pixel format %s\n", 27667eb5f302SLaurent Pinchart drm_get_format_name(fb->pixel_format)); 27677eb5f302SLaurent Pinchart goto out; 27687eb5f302SLaurent Pinchart } 27697eb5f302SLaurent Pinchart } 27707eb5f302SLaurent Pinchart 2771c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, 2772c11e9283SDamien Lespiau mode, fb); 2773c11e9283SDamien Lespiau if (ret) 27745f61bb42SVille Syrjälä goto out; 2775c11e9283SDamien Lespiau 2776f453ba04SDave Airlie } 2777f453ba04SDave Airlie 2778f453ba04SDave Airlie if (crtc_req->count_connectors == 0 && mode) { 277958367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 2780f453ba04SDave Airlie ret = -EINVAL; 2781f453ba04SDave Airlie goto out; 2782f453ba04SDave Airlie } 2783f453ba04SDave Airlie 27847781de74SJakob Bornecrantz if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 278558367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 2786f453ba04SDave Airlie crtc_req->count_connectors); 2787f453ba04SDave Airlie ret = -EINVAL; 2788f453ba04SDave Airlie goto out; 2789f453ba04SDave Airlie } 2790f453ba04SDave Airlie 2791f453ba04SDave Airlie if (crtc_req->count_connectors > 0) { 2792f453ba04SDave Airlie u32 out_id; 2793f453ba04SDave Airlie 2794f453ba04SDave Airlie /* Avoid unbounded kernel memory allocation */ 2795f453ba04SDave Airlie if (crtc_req->count_connectors > config->num_connector) { 2796f453ba04SDave Airlie ret = -EINVAL; 2797f453ba04SDave Airlie goto out; 2798f453ba04SDave Airlie } 2799f453ba04SDave Airlie 28002f6c5389SThierry Reding connector_set = kmalloc_array(crtc_req->count_connectors, 2801f453ba04SDave Airlie sizeof(struct drm_connector *), 2802f453ba04SDave Airlie GFP_KERNEL); 2803f453ba04SDave Airlie if (!connector_set) { 2804f453ba04SDave Airlie ret = -ENOMEM; 2805f453ba04SDave Airlie goto out; 2806f453ba04SDave Airlie } 2807f453ba04SDave Airlie 2808f453ba04SDave Airlie for (i = 0; i < crtc_req->count_connectors; i++) { 2809b164d31fSDave Airlie connector_set[i] = NULL; 281081f6c7f8SVille Syrjälä set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 2811f453ba04SDave Airlie if (get_user(out_id, &set_connectors_ptr[i])) { 2812f453ba04SDave Airlie ret = -EFAULT; 2813f453ba04SDave Airlie goto out; 2814f453ba04SDave Airlie } 2815f453ba04SDave Airlie 2816b164d31fSDave Airlie connector = drm_connector_lookup(dev, out_id); 2817a2b34e22SRob Clark if (!connector) { 281858367ed6SZhao Yakui DRM_DEBUG_KMS("Connector id %d unknown\n", 281958367ed6SZhao Yakui out_id); 2820f27657f2SVille Syrjälä ret = -ENOENT; 2821f453ba04SDave Airlie goto out; 2822f453ba04SDave Airlie } 28239440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 28249440106bSJerome Glisse connector->base.id, 282525933820SJani Nikula connector->name); 2826f453ba04SDave Airlie 2827f453ba04SDave Airlie connector_set[i] = connector; 2828f453ba04SDave Airlie } 2829f453ba04SDave Airlie } 2830f453ba04SDave Airlie 2831f453ba04SDave Airlie set.crtc = crtc; 2832f453ba04SDave Airlie set.x = crtc_req->x; 2833f453ba04SDave Airlie set.y = crtc_req->y; 2834f453ba04SDave Airlie set.mode = mode; 2835f453ba04SDave Airlie set.connectors = connector_set; 2836f453ba04SDave Airlie set.num_connectors = crtc_req->count_connectors; 2837f453ba04SDave Airlie set.fb = fb; 28382d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 2839f453ba04SDave Airlie 2840f453ba04SDave Airlie out: 2841b0d12325SDaniel Vetter if (fb) 2842b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 2843b0d12325SDaniel Vetter 2844b164d31fSDave Airlie if (connector_set) { 2845b164d31fSDave Airlie for (i = 0; i < crtc_req->count_connectors; i++) { 2846b164d31fSDave Airlie if (connector_set[i]) 2847b164d31fSDave Airlie drm_connector_unreference(connector_set[i]); 2848b164d31fSDave Airlie } 2849b164d31fSDave Airlie } 2850f453ba04SDave Airlie kfree(connector_set); 2851ee34ab5bSVille Syrjälä drm_mode_destroy(dev, mode); 285284849903SDaniel Vetter drm_modeset_unlock_all(dev); 2853f453ba04SDave Airlie return ret; 2854f453ba04SDave Airlie } 2855f453ba04SDave Airlie 2856161d0dc1SMatt Roper /** 2857161d0dc1SMatt Roper * drm_mode_cursor_universal - translate legacy cursor ioctl call into a 2858161d0dc1SMatt Roper * universal plane handler call 2859161d0dc1SMatt Roper * @crtc: crtc to update cursor for 2860161d0dc1SMatt Roper * @req: data pointer for the ioctl 2861161d0dc1SMatt Roper * @file_priv: drm file for the ioctl call 2862161d0dc1SMatt Roper * 2863161d0dc1SMatt Roper * Legacy cursor ioctl's work directly with driver buffer handles. To 2864161d0dc1SMatt Roper * translate legacy ioctl calls into universal plane handler calls, we need to 2865161d0dc1SMatt Roper * wrap the native buffer handle in a drm_framebuffer. 2866161d0dc1SMatt Roper * 2867161d0dc1SMatt Roper * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB 2868161d0dc1SMatt Roper * buffer with a pitch of 4*width; the universal plane interface should be used 2869161d0dc1SMatt Roper * directly in cases where the hardware can support other buffer settings and 2870161d0dc1SMatt Roper * userspace wants to make use of these capabilities. 2871161d0dc1SMatt Roper * 2872161d0dc1SMatt Roper * Returns: 28731a498633SDaniel Vetter * Zero on success, negative errno on failure. 2874161d0dc1SMatt Roper */ 2875161d0dc1SMatt Roper static int drm_mode_cursor_universal(struct drm_crtc *crtc, 2876161d0dc1SMatt Roper struct drm_mode_cursor2 *req, 2877161d0dc1SMatt Roper struct drm_file *file_priv) 2878161d0dc1SMatt Roper { 2879161d0dc1SMatt Roper struct drm_device *dev = crtc->dev; 2880161d0dc1SMatt Roper struct drm_framebuffer *fb = NULL; 2881161d0dc1SMatt Roper struct drm_mode_fb_cmd2 fbreq = { 2882161d0dc1SMatt Roper .width = req->width, 2883161d0dc1SMatt Roper .height = req->height, 2884161d0dc1SMatt Roper .pixel_format = DRM_FORMAT_ARGB8888, 2885161d0dc1SMatt Roper .pitches = { req->width * 4 }, 2886161d0dc1SMatt Roper .handles = { req->handle }, 2887161d0dc1SMatt Roper }; 2888161d0dc1SMatt Roper int32_t crtc_x, crtc_y; 2889161d0dc1SMatt Roper uint32_t crtc_w = 0, crtc_h = 0; 2890161d0dc1SMatt Roper uint32_t src_w = 0, src_h = 0; 2891161d0dc1SMatt Roper int ret = 0; 2892161d0dc1SMatt Roper 2893161d0dc1SMatt Roper BUG_ON(!crtc->cursor); 2894f2b50c11SDaniel Vetter WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); 2895161d0dc1SMatt Roper 2896161d0dc1SMatt Roper /* 2897161d0dc1SMatt Roper * Obtain fb we'll be using (either new or existing) and take an extra 2898161d0dc1SMatt Roper * reference to it if fb != null. setplane will take care of dropping 2899161d0dc1SMatt Roper * the reference if the plane update fails. 2900161d0dc1SMatt Roper */ 2901161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_BO) { 2902161d0dc1SMatt Roper if (req->handle) { 29039a6f5130SChris Wilson fb = internal_framebuffer_create(dev, &fbreq, file_priv); 2904161d0dc1SMatt Roper if (IS_ERR(fb)) { 2905161d0dc1SMatt Roper DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); 2906161d0dc1SMatt Roper return PTR_ERR(fb); 2907161d0dc1SMatt Roper } 2908dd546591SGerd Hoffmann fb->hot_x = req->hot_x; 2909dd546591SGerd Hoffmann fb->hot_y = req->hot_y; 2910161d0dc1SMatt Roper } else { 2911161d0dc1SMatt Roper fb = NULL; 2912161d0dc1SMatt Roper } 2913161d0dc1SMatt Roper } else { 2914161d0dc1SMatt Roper fb = crtc->cursor->fb; 2915161d0dc1SMatt Roper if (fb) 2916161d0dc1SMatt Roper drm_framebuffer_reference(fb); 2917161d0dc1SMatt Roper } 2918161d0dc1SMatt Roper 2919161d0dc1SMatt Roper if (req->flags & DRM_MODE_CURSOR_MOVE) { 2920161d0dc1SMatt Roper crtc_x = req->x; 2921161d0dc1SMatt Roper crtc_y = req->y; 2922161d0dc1SMatt Roper } else { 2923161d0dc1SMatt Roper crtc_x = crtc->cursor_x; 2924161d0dc1SMatt Roper crtc_y = crtc->cursor_y; 2925161d0dc1SMatt Roper } 2926161d0dc1SMatt Roper 2927161d0dc1SMatt Roper if (fb) { 2928161d0dc1SMatt Roper crtc_w = fb->width; 2929161d0dc1SMatt Roper crtc_h = fb->height; 2930161d0dc1SMatt Roper src_w = fb->width << 16; 2931161d0dc1SMatt Roper src_h = fb->height << 16; 2932161d0dc1SMatt Roper } 2933161d0dc1SMatt Roper 2934161d0dc1SMatt Roper /* 2935161d0dc1SMatt Roper * setplane_internal will take care of deref'ing either the old or new 2936161d0dc1SMatt Roper * framebuffer depending on success. 2937161d0dc1SMatt Roper */ 2938f2b50c11SDaniel Vetter ret = __setplane_internal(crtc->cursor, crtc, fb, 2939161d0dc1SMatt Roper crtc_x, crtc_y, crtc_w, crtc_h, 2940161d0dc1SMatt Roper 0, 0, src_w, src_h); 2941161d0dc1SMatt Roper 2942161d0dc1SMatt Roper /* Update successful; save new cursor position, if necessary */ 2943161d0dc1SMatt Roper if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { 2944161d0dc1SMatt Roper crtc->cursor_x = req->x; 2945161d0dc1SMatt Roper crtc->cursor_y = req->y; 2946161d0dc1SMatt Roper } 2947161d0dc1SMatt Roper 2948161d0dc1SMatt Roper return ret; 2949161d0dc1SMatt Roper } 2950161d0dc1SMatt Roper 29514c813d4dSDave Airlie static int drm_mode_cursor_common(struct drm_device *dev, 29524c813d4dSDave Airlie struct drm_mode_cursor2 *req, 29534c813d4dSDave Airlie struct drm_file *file_priv) 2954f453ba04SDave Airlie { 2955f453ba04SDave Airlie struct drm_crtc *crtc; 2956f453ba04SDave Airlie int ret = 0; 2957f453ba04SDave Airlie 2958fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2959fb3b06c8SDave Airlie return -EINVAL; 2960fb3b06c8SDave Airlie 29617c4eaca4SJakob Bornecrantz if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) 2962f453ba04SDave Airlie return -EINVAL; 2963f453ba04SDave Airlie 2964a2b34e22SRob Clark crtc = drm_crtc_find(dev, req->crtc_id); 2965a2b34e22SRob Clark if (!crtc) { 296658367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); 2967f27657f2SVille Syrjälä return -ENOENT; 2968f453ba04SDave Airlie } 2969f453ba04SDave Airlie 2970161d0dc1SMatt Roper /* 2971161d0dc1SMatt Roper * If this crtc has a universal cursor plane, call that plane's update 2972161d0dc1SMatt Roper * handler rather than using legacy cursor handlers. 2973161d0dc1SMatt Roper */ 29744d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->cursor); 2975f2b50c11SDaniel Vetter if (crtc->cursor) { 2976f2b50c11SDaniel Vetter ret = drm_mode_cursor_universal(crtc, req, file_priv); 2977f2b50c11SDaniel Vetter goto out; 2978f2b50c11SDaniel Vetter } 2979f2b50c11SDaniel Vetter 2980f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_BO) { 29814c813d4dSDave Airlie if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { 2982f453ba04SDave Airlie ret = -ENXIO; 2983f453ba04SDave Airlie goto out; 2984f453ba04SDave Airlie } 2985f453ba04SDave Airlie /* Turns off the cursor if handle is 0 */ 29864c813d4dSDave Airlie if (crtc->funcs->cursor_set2) 29874c813d4dSDave Airlie ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, 29884c813d4dSDave Airlie req->width, req->height, req->hot_x, req->hot_y); 29894c813d4dSDave Airlie else 2990f453ba04SDave Airlie ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, 2991f453ba04SDave Airlie req->width, req->height); 2992f453ba04SDave Airlie } 2993f453ba04SDave Airlie 2994f453ba04SDave Airlie if (req->flags & DRM_MODE_CURSOR_MOVE) { 2995f453ba04SDave Airlie if (crtc->funcs->cursor_move) { 2996f453ba04SDave Airlie ret = crtc->funcs->cursor_move(crtc, req->x, req->y); 2997f453ba04SDave Airlie } else { 2998f453ba04SDave Airlie ret = -EFAULT; 2999f453ba04SDave Airlie goto out; 3000f453ba04SDave Airlie } 3001f453ba04SDave Airlie } 3002f453ba04SDave Airlie out: 3003d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 3004dac35663SDaniel Vetter 3005f453ba04SDave Airlie return ret; 30064c813d4dSDave Airlie 30074c813d4dSDave Airlie } 3008c8e32cc1SDaniel Vetter 3009c8e32cc1SDaniel Vetter 3010c8e32cc1SDaniel Vetter /** 3011c8e32cc1SDaniel Vetter * drm_mode_cursor_ioctl - set CRTC's cursor configuration 3012c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3013c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3014c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3015c8e32cc1SDaniel Vetter * 3016c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. 3017c8e32cc1SDaniel Vetter * 3018c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3019c8e32cc1SDaniel Vetter * 3020c8e32cc1SDaniel Vetter * Returns: 30211a498633SDaniel Vetter * Zero on success, negative errno on failure. 3022c8e32cc1SDaniel Vetter */ 30234c813d4dSDave Airlie int drm_mode_cursor_ioctl(struct drm_device *dev, 30244c813d4dSDave Airlie void *data, struct drm_file *file_priv) 30254c813d4dSDave Airlie { 30264c813d4dSDave Airlie struct drm_mode_cursor *req = data; 30274c813d4dSDave Airlie struct drm_mode_cursor2 new_req; 30284c813d4dSDave Airlie 30294c813d4dSDave Airlie memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); 30304c813d4dSDave Airlie new_req.hot_x = new_req.hot_y = 0; 30314c813d4dSDave Airlie 30324c813d4dSDave Airlie return drm_mode_cursor_common(dev, &new_req, file_priv); 30334c813d4dSDave Airlie } 30344c813d4dSDave Airlie 3035c8e32cc1SDaniel Vetter /** 3036c8e32cc1SDaniel Vetter * drm_mode_cursor2_ioctl - set CRTC's cursor configuration 3037c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3038c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3039c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3040c8e32cc1SDaniel Vetter * 3041c8e32cc1SDaniel Vetter * Set the cursor configuration based on user request. This implements the 2nd 3042c8e32cc1SDaniel Vetter * version of the cursor ioctl, which allows userspace to additionally specify 3043c8e32cc1SDaniel Vetter * the hotspot of the pointer. 3044c8e32cc1SDaniel Vetter * 3045c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3046c8e32cc1SDaniel Vetter * 3047c8e32cc1SDaniel Vetter * Returns: 30481a498633SDaniel Vetter * Zero on success, negative errno on failure. 3049c8e32cc1SDaniel Vetter */ 30504c813d4dSDave Airlie int drm_mode_cursor2_ioctl(struct drm_device *dev, 30514c813d4dSDave Airlie void *data, struct drm_file *file_priv) 30524c813d4dSDave Airlie { 30534c813d4dSDave Airlie struct drm_mode_cursor2 *req = data; 30544dfd909fSThierry Reding 30554c813d4dSDave Airlie return drm_mode_cursor_common(dev, req, file_priv); 3056f453ba04SDave Airlie } 3057f453ba04SDave Airlie 3058c8e32cc1SDaniel Vetter /** 3059c8e32cc1SDaniel Vetter * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description 3060c8e32cc1SDaniel Vetter * @bpp: bits per pixels 3061c8e32cc1SDaniel Vetter * @depth: bit depth per pixel 3062c8e32cc1SDaniel Vetter * 3063c8e32cc1SDaniel Vetter * Computes a drm fourcc pixel format code for the given @bpp/@depth values. 3064c8e32cc1SDaniel Vetter * Useful in fbdev emulation code, since that deals in those values. 3065c8e32cc1SDaniel Vetter */ 3066308e5bcbSJesse Barnes uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) 3067308e5bcbSJesse Barnes { 3068308e5bcbSJesse Barnes uint32_t fmt; 3069308e5bcbSJesse Barnes 3070308e5bcbSJesse Barnes switch (bpp) { 3071308e5bcbSJesse Barnes case 8: 3072d84f031bSVille Syrjälä fmt = DRM_FORMAT_C8; 3073308e5bcbSJesse Barnes break; 3074308e5bcbSJesse Barnes case 16: 3075308e5bcbSJesse Barnes if (depth == 15) 307604b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB1555; 3077308e5bcbSJesse Barnes else 307804b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB565; 3079308e5bcbSJesse Barnes break; 3080308e5bcbSJesse Barnes case 24: 308104b3924dSVille Syrjälä fmt = DRM_FORMAT_RGB888; 3082308e5bcbSJesse Barnes break; 3083308e5bcbSJesse Barnes case 32: 3084308e5bcbSJesse Barnes if (depth == 24) 308504b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 3086308e5bcbSJesse Barnes else if (depth == 30) 308704b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB2101010; 3088308e5bcbSJesse Barnes else 308904b3924dSVille Syrjälä fmt = DRM_FORMAT_ARGB8888; 3090308e5bcbSJesse Barnes break; 3091308e5bcbSJesse Barnes default: 309204b3924dSVille Syrjälä DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); 309304b3924dSVille Syrjälä fmt = DRM_FORMAT_XRGB8888; 3094308e5bcbSJesse Barnes break; 3095308e5bcbSJesse Barnes } 3096308e5bcbSJesse Barnes 3097308e5bcbSJesse Barnes return fmt; 3098308e5bcbSJesse Barnes } 3099308e5bcbSJesse Barnes EXPORT_SYMBOL(drm_mode_legacy_fb_format); 3100308e5bcbSJesse Barnes 3101f453ba04SDave Airlie /** 3102f453ba04SDave Airlie * drm_mode_addfb - add an FB to the graphics configuration 3103065a50edSDaniel Vetter * @dev: drm device for the ioctl 3104065a50edSDaniel Vetter * @data: data pointer for the ioctl 3105065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3106f453ba04SDave Airlie * 3107c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request. This is the 3108209f5527SChuck Ebbert * original addfb ioctl which only supported RGB formats. 3109f453ba04SDave Airlie * 3110f453ba04SDave Airlie * Called by the user via ioctl. 3111f453ba04SDave Airlie * 3112c8e32cc1SDaniel Vetter * Returns: 31131a498633SDaniel Vetter * Zero on success, negative errno on failure. 3114f453ba04SDave Airlie */ 3115f453ba04SDave Airlie int drm_mode_addfb(struct drm_device *dev, 3116f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3117f453ba04SDave Airlie { 3118308e5bcbSJesse Barnes struct drm_mode_fb_cmd *or = data; 3119308e5bcbSJesse Barnes struct drm_mode_fb_cmd2 r = {}; 3120228f2cb3SChuck Ebbert int ret; 3121308e5bcbSJesse Barnes 3122228f2cb3SChuck Ebbert /* convert to new format and call new ioctl */ 3123308e5bcbSJesse Barnes r.fb_id = or->fb_id; 3124308e5bcbSJesse Barnes r.width = or->width; 3125308e5bcbSJesse Barnes r.height = or->height; 3126308e5bcbSJesse Barnes r.pitches[0] = or->pitch; 3127308e5bcbSJesse Barnes r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); 3128308e5bcbSJesse Barnes r.handles[0] = or->handle; 3129308e5bcbSJesse Barnes 3130228f2cb3SChuck Ebbert ret = drm_mode_addfb2(dev, &r, file_priv); 3131228f2cb3SChuck Ebbert if (ret) 3132228f2cb3SChuck Ebbert return ret; 3133308e5bcbSJesse Barnes 3134228f2cb3SChuck Ebbert or->fb_id = r.fb_id; 31354b096ac1SDaniel Vetter 3136baf698b0SDaniel Vetter return 0; 3137308e5bcbSJesse Barnes } 3138308e5bcbSJesse Barnes 3139cff91b62SVille Syrjälä static int format_check(const struct drm_mode_fb_cmd2 *r) 3140935b5977SVille Syrjälä { 3141935b5977SVille Syrjälä uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; 3142935b5977SVille Syrjälä 3143935b5977SVille Syrjälä switch (format) { 3144935b5977SVille Syrjälä case DRM_FORMAT_C8: 3145935b5977SVille Syrjälä case DRM_FORMAT_RGB332: 3146935b5977SVille Syrjälä case DRM_FORMAT_BGR233: 3147935b5977SVille Syrjälä case DRM_FORMAT_XRGB4444: 3148935b5977SVille Syrjälä case DRM_FORMAT_XBGR4444: 3149935b5977SVille Syrjälä case DRM_FORMAT_RGBX4444: 3150935b5977SVille Syrjälä case DRM_FORMAT_BGRX4444: 3151935b5977SVille Syrjälä case DRM_FORMAT_ARGB4444: 3152935b5977SVille Syrjälä case DRM_FORMAT_ABGR4444: 3153935b5977SVille Syrjälä case DRM_FORMAT_RGBA4444: 3154935b5977SVille Syrjälä case DRM_FORMAT_BGRA4444: 3155935b5977SVille Syrjälä case DRM_FORMAT_XRGB1555: 3156935b5977SVille Syrjälä case DRM_FORMAT_XBGR1555: 3157935b5977SVille Syrjälä case DRM_FORMAT_RGBX5551: 3158935b5977SVille Syrjälä case DRM_FORMAT_BGRX5551: 3159935b5977SVille Syrjälä case DRM_FORMAT_ARGB1555: 3160935b5977SVille Syrjälä case DRM_FORMAT_ABGR1555: 3161935b5977SVille Syrjälä case DRM_FORMAT_RGBA5551: 3162935b5977SVille Syrjälä case DRM_FORMAT_BGRA5551: 3163935b5977SVille Syrjälä case DRM_FORMAT_RGB565: 3164935b5977SVille Syrjälä case DRM_FORMAT_BGR565: 3165935b5977SVille Syrjälä case DRM_FORMAT_RGB888: 3166935b5977SVille Syrjälä case DRM_FORMAT_BGR888: 3167935b5977SVille Syrjälä case DRM_FORMAT_XRGB8888: 3168935b5977SVille Syrjälä case DRM_FORMAT_XBGR8888: 3169935b5977SVille Syrjälä case DRM_FORMAT_RGBX8888: 3170935b5977SVille Syrjälä case DRM_FORMAT_BGRX8888: 3171935b5977SVille Syrjälä case DRM_FORMAT_ARGB8888: 3172935b5977SVille Syrjälä case DRM_FORMAT_ABGR8888: 3173935b5977SVille Syrjälä case DRM_FORMAT_RGBA8888: 3174935b5977SVille Syrjälä case DRM_FORMAT_BGRA8888: 3175935b5977SVille Syrjälä case DRM_FORMAT_XRGB2101010: 3176935b5977SVille Syrjälä case DRM_FORMAT_XBGR2101010: 3177935b5977SVille Syrjälä case DRM_FORMAT_RGBX1010102: 3178935b5977SVille Syrjälä case DRM_FORMAT_BGRX1010102: 3179935b5977SVille Syrjälä case DRM_FORMAT_ARGB2101010: 3180935b5977SVille Syrjälä case DRM_FORMAT_ABGR2101010: 3181935b5977SVille Syrjälä case DRM_FORMAT_RGBA1010102: 3182935b5977SVille Syrjälä case DRM_FORMAT_BGRA1010102: 3183935b5977SVille Syrjälä case DRM_FORMAT_YUYV: 3184935b5977SVille Syrjälä case DRM_FORMAT_YVYU: 3185935b5977SVille Syrjälä case DRM_FORMAT_UYVY: 3186935b5977SVille Syrjälä case DRM_FORMAT_VYUY: 3187935b5977SVille Syrjälä case DRM_FORMAT_AYUV: 3188935b5977SVille Syrjälä case DRM_FORMAT_NV12: 3189935b5977SVille Syrjälä case DRM_FORMAT_NV21: 3190935b5977SVille Syrjälä case DRM_FORMAT_NV16: 3191935b5977SVille Syrjälä case DRM_FORMAT_NV61: 3192ba623f6aSLaurent Pinchart case DRM_FORMAT_NV24: 3193ba623f6aSLaurent Pinchart case DRM_FORMAT_NV42: 3194935b5977SVille Syrjälä case DRM_FORMAT_YUV410: 3195935b5977SVille Syrjälä case DRM_FORMAT_YVU410: 3196935b5977SVille Syrjälä case DRM_FORMAT_YUV411: 3197935b5977SVille Syrjälä case DRM_FORMAT_YVU411: 3198935b5977SVille Syrjälä case DRM_FORMAT_YUV420: 3199935b5977SVille Syrjälä case DRM_FORMAT_YVU420: 3200935b5977SVille Syrjälä case DRM_FORMAT_YUV422: 3201935b5977SVille Syrjälä case DRM_FORMAT_YVU422: 3202935b5977SVille Syrjälä case DRM_FORMAT_YUV444: 3203935b5977SVille Syrjälä case DRM_FORMAT_YVU444: 3204935b5977SVille Syrjälä return 0; 3205935b5977SVille Syrjälä default: 320623c453a4SVille Syrjälä DRM_DEBUG_KMS("invalid pixel format %s\n", 320723c453a4SVille Syrjälä drm_get_format_name(r->pixel_format)); 3208935b5977SVille Syrjälä return -EINVAL; 3209935b5977SVille Syrjälä } 3210935b5977SVille Syrjälä } 3211935b5977SVille Syrjälä 3212cff91b62SVille Syrjälä static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) 3213d1b45d5fSVille Syrjälä { 3214d1b45d5fSVille Syrjälä int ret, hsub, vsub, num_planes, i; 3215d1b45d5fSVille Syrjälä 3216d1b45d5fSVille Syrjälä ret = format_check(r); 3217d1b45d5fSVille Syrjälä if (ret) { 32186ba6d03eSVille Syrjälä DRM_DEBUG_KMS("bad framebuffer format %s\n", 32196ba6d03eSVille Syrjälä drm_get_format_name(r->pixel_format)); 3220d1b45d5fSVille Syrjälä return ret; 3221d1b45d5fSVille Syrjälä } 3222d1b45d5fSVille Syrjälä 3223d1b45d5fSVille Syrjälä hsub = drm_format_horz_chroma_subsampling(r->pixel_format); 3224d1b45d5fSVille Syrjälä vsub = drm_format_vert_chroma_subsampling(r->pixel_format); 3225d1b45d5fSVille Syrjälä num_planes = drm_format_num_planes(r->pixel_format); 3226d1b45d5fSVille Syrjälä 3227d1b45d5fSVille Syrjälä if (r->width == 0 || r->width % hsub) { 3228209f5527SChuck Ebbert DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); 3229d1b45d5fSVille Syrjälä return -EINVAL; 3230d1b45d5fSVille Syrjälä } 3231d1b45d5fSVille Syrjälä 3232d1b45d5fSVille Syrjälä if (r->height == 0 || r->height % vsub) { 32331aa1b11cSDave Airlie DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); 3234d1b45d5fSVille Syrjälä return -EINVAL; 3235d1b45d5fSVille Syrjälä } 3236d1b45d5fSVille Syrjälä 3237d1b45d5fSVille Syrjälä for (i = 0; i < num_planes; i++) { 3238d1b45d5fSVille Syrjälä unsigned int width = r->width / (i != 0 ? hsub : 1); 3239b180b5d1SVille Syrjälä unsigned int height = r->height / (i != 0 ? vsub : 1); 3240b180b5d1SVille Syrjälä unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); 3241d1b45d5fSVille Syrjälä 3242d1b45d5fSVille Syrjälä if (!r->handles[i]) { 32431aa1b11cSDave Airlie DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); 3244d1b45d5fSVille Syrjälä return -EINVAL; 3245d1b45d5fSVille Syrjälä } 3246d1b45d5fSVille Syrjälä 3247b180b5d1SVille Syrjälä if ((uint64_t) width * cpp > UINT_MAX) 3248b180b5d1SVille Syrjälä return -ERANGE; 3249b180b5d1SVille Syrjälä 3250b180b5d1SVille Syrjälä if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) 3251b180b5d1SVille Syrjälä return -ERANGE; 3252b180b5d1SVille Syrjälä 3253b180b5d1SVille Syrjälä if (r->pitches[i] < width * cpp) { 32541aa1b11cSDave Airlie DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); 3255d1b45d5fSVille Syrjälä return -EINVAL; 3256d1b45d5fSVille Syrjälä } 3257e3eb3250SRob Clark 3258e3eb3250SRob Clark if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { 3259e3eb3250SRob Clark DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", 3260e3eb3250SRob Clark r->modifier[i], i); 3261e3eb3250SRob Clark return -EINVAL; 3262e3eb3250SRob Clark } 3263570655b0SRob Clark 3264570655b0SRob Clark /* modifier specific checks: */ 3265570655b0SRob Clark switch (r->modifier[i]) { 3266570655b0SRob Clark case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: 3267570655b0SRob Clark /* NOTE: the pitch restriction may be lifted later if it turns 3268570655b0SRob Clark * out that no hw has this restriction: 3269570655b0SRob Clark */ 3270570655b0SRob Clark if (r->pixel_format != DRM_FORMAT_NV12 || 3271570655b0SRob Clark width % 128 || height % 32 || 3272570655b0SRob Clark r->pitches[i] % 128) { 3273570655b0SRob Clark DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); 3274570655b0SRob Clark return -EINVAL; 3275570655b0SRob Clark } 3276570655b0SRob Clark break; 3277570655b0SRob Clark 3278570655b0SRob Clark default: 3279570655b0SRob Clark break; 3280570655b0SRob Clark } 3281d1b45d5fSVille Syrjälä } 3282d1b45d5fSVille Syrjälä 3283bbe16a40SDaniel Vetter for (i = num_planes; i < 4; i++) { 3284bbe16a40SDaniel Vetter if (r->modifier[i]) { 3285bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); 3286bbe16a40SDaniel Vetter return -EINVAL; 3287bbe16a40SDaniel Vetter } 3288bbe16a40SDaniel Vetter 3289bbe16a40SDaniel Vetter /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ 3290bbe16a40SDaniel Vetter if (!(r->flags & DRM_MODE_FB_MODIFIERS)) 3291bbe16a40SDaniel Vetter continue; 3292bbe16a40SDaniel Vetter 3293bbe16a40SDaniel Vetter if (r->handles[i]) { 3294bbe16a40SDaniel Vetter DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); 3295bbe16a40SDaniel Vetter return -EINVAL; 3296bbe16a40SDaniel Vetter } 3297bbe16a40SDaniel Vetter 3298bbe16a40SDaniel Vetter if (r->pitches[i]) { 3299bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); 3300bbe16a40SDaniel Vetter return -EINVAL; 3301bbe16a40SDaniel Vetter } 3302bbe16a40SDaniel Vetter 3303bbe16a40SDaniel Vetter if (r->offsets[i]) { 3304bbe16a40SDaniel Vetter DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); 3305bbe16a40SDaniel Vetter return -EINVAL; 3306bbe16a40SDaniel Vetter } 3307bbe16a40SDaniel Vetter } 3308bbe16a40SDaniel Vetter 3309d1b45d5fSVille Syrjälä return 0; 3310d1b45d5fSVille Syrjälä } 3311d1b45d5fSVille Syrjälä 33129a6f5130SChris Wilson static struct drm_framebuffer * 33139a6f5130SChris Wilson internal_framebuffer_create(struct drm_device *dev, 33141eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *r, 3315c394c2b0SMatt Roper struct drm_file *file_priv) 3316c394c2b0SMatt Roper { 3317c394c2b0SMatt Roper struct drm_mode_config *config = &dev->mode_config; 3318c394c2b0SMatt Roper struct drm_framebuffer *fb; 3319c394c2b0SMatt Roper int ret; 3320c394c2b0SMatt Roper 3321e3eb3250SRob Clark if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { 3322c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); 3323c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3324c394c2b0SMatt Roper } 3325c394c2b0SMatt Roper 3326c394c2b0SMatt Roper if ((config->min_width > r->width) || (r->width > config->max_width)) { 3327c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", 3328c394c2b0SMatt Roper r->width, config->min_width, config->max_width); 3329c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3330c394c2b0SMatt Roper } 3331c394c2b0SMatt Roper if ((config->min_height > r->height) || (r->height > config->max_height)) { 3332c394c2b0SMatt Roper DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", 3333c394c2b0SMatt Roper r->height, config->min_height, config->max_height); 3334c394c2b0SMatt Roper return ERR_PTR(-EINVAL); 3335c394c2b0SMatt Roper } 3336c394c2b0SMatt Roper 3337e3eb3250SRob Clark if (r->flags & DRM_MODE_FB_MODIFIERS && 3338e3eb3250SRob Clark !dev->mode_config.allow_fb_modifiers) { 3339e3eb3250SRob Clark DRM_DEBUG_KMS("driver does not support fb modifiers\n"); 3340e3eb3250SRob Clark return ERR_PTR(-EINVAL); 3341e3eb3250SRob Clark } 3342e3eb3250SRob Clark 3343c394c2b0SMatt Roper ret = framebuffer_check(r); 3344c394c2b0SMatt Roper if (ret) 3345c394c2b0SMatt Roper return ERR_PTR(ret); 3346c394c2b0SMatt Roper 3347c394c2b0SMatt Roper fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); 3348c394c2b0SMatt Roper if (IS_ERR(fb)) { 3349c394c2b0SMatt Roper DRM_DEBUG_KMS("could not create framebuffer\n"); 3350c394c2b0SMatt Roper return fb; 3351c394c2b0SMatt Roper } 3352c394c2b0SMatt Roper 3353c394c2b0SMatt Roper return fb; 3354c394c2b0SMatt Roper } 3355c394c2b0SMatt Roper 3356308e5bcbSJesse Barnes /** 3357308e5bcbSJesse Barnes * drm_mode_addfb2 - add an FB to the graphics configuration 3358065a50edSDaniel Vetter * @dev: drm device for the ioctl 3359065a50edSDaniel Vetter * @data: data pointer for the ioctl 3360065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3361308e5bcbSJesse Barnes * 3362c8e32cc1SDaniel Vetter * Add a new FB to the specified CRTC, given a user request with format. This is 3363c8e32cc1SDaniel Vetter * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers 3364c8e32cc1SDaniel Vetter * and uses fourcc codes as pixel format specifiers. 3365308e5bcbSJesse Barnes * 3366308e5bcbSJesse Barnes * Called by the user via ioctl. 3367308e5bcbSJesse Barnes * 3368c8e32cc1SDaniel Vetter * Returns: 33691a498633SDaniel Vetter * Zero on success, negative errno on failure. 3370308e5bcbSJesse Barnes */ 3371308e5bcbSJesse Barnes int drm_mode_addfb2(struct drm_device *dev, 3372308e5bcbSJesse Barnes void *data, struct drm_file *file_priv) 3373308e5bcbSJesse Barnes { 33749a6f5130SChris Wilson struct drm_mode_fb_cmd2 *r = data; 3375f453ba04SDave Airlie struct drm_framebuffer *fb; 3376f453ba04SDave Airlie 3377fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3378fb3b06c8SDave Airlie return -EINVAL; 3379fb3b06c8SDave Airlie 33809a6f5130SChris Wilson fb = internal_framebuffer_create(dev, r, file_priv); 3381c394c2b0SMatt Roper if (IS_ERR(fb)) 33824b096ac1SDaniel Vetter return PTR_ERR(fb); 3383f453ba04SDave Airlie 33849a6f5130SChris Wilson DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 33859a6f5130SChris Wilson r->fb_id = fb->base.id; 3386c7e1c59aSDave Airlie 3387c7e1c59aSDave Airlie /* Transfer ownership to the filp for reaping on close */ 3388c7e1c59aSDave Airlie mutex_lock(&file_priv->fbs_lock); 33899a6f5130SChris Wilson list_add(&fb->filp_head, &file_priv->fbs); 33909a6f5130SChris Wilson mutex_unlock(&file_priv->fbs_lock); 33919a6f5130SChris Wilson 3392c394c2b0SMatt Roper return 0; 3393f453ba04SDave Airlie } 3394f453ba04SDave Airlie 3395f2d580b9SMaarten Lankhorst struct drm_mode_rmfb_work { 3396f2d580b9SMaarten Lankhorst struct work_struct work; 3397f2d580b9SMaarten Lankhorst struct list_head fbs; 3398f2d580b9SMaarten Lankhorst }; 3399f2d580b9SMaarten Lankhorst 3400f2d580b9SMaarten Lankhorst static void drm_mode_rmfb_work_fn(struct work_struct *w) 3401f2d580b9SMaarten Lankhorst { 3402f2d580b9SMaarten Lankhorst struct drm_mode_rmfb_work *arg = container_of(w, typeof(*arg), work); 3403f2d580b9SMaarten Lankhorst 3404f2d580b9SMaarten Lankhorst while (!list_empty(&arg->fbs)) { 3405f2d580b9SMaarten Lankhorst struct drm_framebuffer *fb = 3406f2d580b9SMaarten Lankhorst list_first_entry(&arg->fbs, typeof(*fb), filp_head); 3407f2d580b9SMaarten Lankhorst 3408f2d580b9SMaarten Lankhorst list_del_init(&fb->filp_head); 3409f2d580b9SMaarten Lankhorst drm_framebuffer_remove(fb); 3410f2d580b9SMaarten Lankhorst } 3411f2d580b9SMaarten Lankhorst } 3412f2d580b9SMaarten Lankhorst 3413f453ba04SDave Airlie /** 3414f453ba04SDave Airlie * drm_mode_rmfb - remove an FB from the configuration 3415065a50edSDaniel Vetter * @dev: drm device for the ioctl 3416065a50edSDaniel Vetter * @data: data pointer for the ioctl 3417065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3418f453ba04SDave Airlie * 3419f453ba04SDave Airlie * Remove the FB specified by the user. 3420f453ba04SDave Airlie * 3421f453ba04SDave Airlie * Called by the user via ioctl. 3422f453ba04SDave Airlie * 3423c8e32cc1SDaniel Vetter * Returns: 34241a498633SDaniel Vetter * Zero on success, negative errno on failure. 3425f453ba04SDave Airlie */ 3426f453ba04SDave Airlie int drm_mode_rmfb(struct drm_device *dev, 3427f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3428f453ba04SDave Airlie { 3429f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 3430f453ba04SDave Airlie struct drm_framebuffer *fbl = NULL; 3431f453ba04SDave Airlie uint32_t *id = data; 3432f453ba04SDave Airlie int found = 0; 3433f453ba04SDave Airlie 3434fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3435fb3b06c8SDave Airlie return -EINVAL; 3436fb3b06c8SDave Airlie 343772fe90b8SDave Airlie fb = drm_framebuffer_lookup(dev, *id); 343872fe90b8SDave Airlie if (!fb) 343972fe90b8SDave Airlie return -ENOENT; 344072fe90b8SDave Airlie 34414b096ac1SDaniel Vetter mutex_lock(&file_priv->fbs_lock); 3442f453ba04SDave Airlie list_for_each_entry(fbl, &file_priv->fbs, filp_head) 3443f453ba04SDave Airlie if (fb == fbl) 3444f453ba04SDave Airlie found = 1; 344572fe90b8SDave Airlie if (!found) { 344672fe90b8SDave Airlie mutex_unlock(&file_priv->fbs_lock); 344772fe90b8SDave Airlie goto fail_unref; 344872fe90b8SDave Airlie } 34492b677e8cSDaniel Vetter 34504b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 34514b096ac1SDaniel Vetter mutex_unlock(&file_priv->fbs_lock); 3452f453ba04SDave Airlie 3453f2d580b9SMaarten Lankhorst /* drop the reference we picked up in framebuffer lookup */ 345472fe90b8SDave Airlie drm_framebuffer_unreference(fb); 345572fe90b8SDave Airlie 3456f2d580b9SMaarten Lankhorst /* 3457f2d580b9SMaarten Lankhorst * we now own the reference that was stored in the fbs list 3458f2d580b9SMaarten Lankhorst * 3459f2d580b9SMaarten Lankhorst * drm_framebuffer_remove may fail with -EINTR on pending signals, 3460f2d580b9SMaarten Lankhorst * so run this in a separate stack as there's no way to correctly 3461f2d580b9SMaarten Lankhorst * handle this after the fb is already removed from the lookup table. 3462f2d580b9SMaarten Lankhorst */ 3463f2d580b9SMaarten Lankhorst if (drm_framebuffer_read_refcount(fb) > 1) { 3464f2d580b9SMaarten Lankhorst struct drm_mode_rmfb_work arg; 3465f2d580b9SMaarten Lankhorst 3466f2d580b9SMaarten Lankhorst INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn); 3467f2d580b9SMaarten Lankhorst INIT_LIST_HEAD(&arg.fbs); 3468f2d580b9SMaarten Lankhorst list_add_tail(&fb->filp_head, &arg.fbs); 3469f2d580b9SMaarten Lankhorst 3470f2d580b9SMaarten Lankhorst schedule_work(&arg.work); 3471f2d580b9SMaarten Lankhorst flush_work(&arg.work); 3472f2d580b9SMaarten Lankhorst destroy_work_on_stack(&arg.work); 3473f2d580b9SMaarten Lankhorst } else 347413803132SMaarten Lankhorst drm_framebuffer_unreference(fb); 34754b096ac1SDaniel Vetter 34762b677e8cSDaniel Vetter return 0; 34772b677e8cSDaniel Vetter 347872fe90b8SDave Airlie fail_unref: 347972fe90b8SDave Airlie drm_framebuffer_unreference(fb); 348037c4e705SVille Syrjälä return -ENOENT; 3481f453ba04SDave Airlie } 3482f453ba04SDave Airlie 3483f453ba04SDave Airlie /** 3484f453ba04SDave Airlie * drm_mode_getfb - get FB info 3485065a50edSDaniel Vetter * @dev: drm device for the ioctl 3486065a50edSDaniel Vetter * @data: data pointer for the ioctl 3487065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 3488f453ba04SDave Airlie * 3489f453ba04SDave Airlie * Lookup the FB given its ID and return info about it. 3490f453ba04SDave Airlie * 3491f453ba04SDave Airlie * Called by the user via ioctl. 3492f453ba04SDave Airlie * 3493c8e32cc1SDaniel Vetter * Returns: 34941a498633SDaniel Vetter * Zero on success, negative errno on failure. 3495f453ba04SDave Airlie */ 3496f453ba04SDave Airlie int drm_mode_getfb(struct drm_device *dev, 3497f453ba04SDave Airlie void *data, struct drm_file *file_priv) 3498f453ba04SDave Airlie { 3499f453ba04SDave Airlie struct drm_mode_fb_cmd *r = data; 3500f453ba04SDave Airlie struct drm_framebuffer *fb; 350158c0dca1SDaniel Vetter int ret; 3502f453ba04SDave Airlie 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); 350758c0dca1SDaniel Vetter if (!fb) 350837c4e705SVille Syrjälä return -ENOENT; 3509f453ba04SDave Airlie 3510f453ba04SDave Airlie r->height = fb->height; 3511f453ba04SDave Airlie r->width = fb->width; 3512f453ba04SDave Airlie r->depth = fb->depth; 3513f453ba04SDave Airlie r->bpp = fb->bits_per_pixel; 351401f2c773SVille Syrjälä r->pitch = fb->pitches[0]; 3515101b96f3SDavid Herrmann if (fb->funcs->create_handle) { 351609f308f7SThomas Hellstrom if (file_priv->is_master || capable(CAP_SYS_ADMIN) || 351743683057SThomas Hellstrom drm_is_control_client(file_priv)) { 3518101b96f3SDavid Herrmann ret = fb->funcs->create_handle(fb, file_priv, 3519101b96f3SDavid Herrmann &r->handle); 3520101b96f3SDavid Herrmann } else { 3521101b96f3SDavid Herrmann /* GET_FB() is an unprivileged ioctl so we must not 3522101b96f3SDavid Herrmann * return a buffer-handle to non-master processes! For 3523101b96f3SDavid Herrmann * backwards-compatibility reasons, we cannot make 3524101b96f3SDavid Herrmann * GET_FB() privileged, so just return an invalid handle 3525101b96f3SDavid Herrmann * for non-masters. */ 3526101b96f3SDavid Herrmann r->handle = 0; 3527101b96f3SDavid Herrmann ret = 0; 3528101b96f3SDavid Herrmann } 3529101b96f3SDavid Herrmann } else { 3530af26ef3bSDaniel Vetter ret = -ENODEV; 3531101b96f3SDavid Herrmann } 3532f453ba04SDave Airlie 353358c0dca1SDaniel Vetter drm_framebuffer_unreference(fb); 353458c0dca1SDaniel Vetter 3535f453ba04SDave Airlie return ret; 3536f453ba04SDave Airlie } 3537f453ba04SDave Airlie 3538c8e32cc1SDaniel Vetter /** 3539c8e32cc1SDaniel Vetter * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB 3540c8e32cc1SDaniel Vetter * @dev: drm device for the ioctl 3541c8e32cc1SDaniel Vetter * @data: data pointer for the ioctl 3542c8e32cc1SDaniel Vetter * @file_priv: drm file for the ioctl call 3543c8e32cc1SDaniel Vetter * 3544c8e32cc1SDaniel Vetter * Lookup the FB and flush out the damaged area supplied by userspace as a clip 3545c8e32cc1SDaniel Vetter * rectangle list. Generic userspace which does frontbuffer rendering must call 3546c8e32cc1SDaniel Vetter * this ioctl to flush out the changes on manual-update display outputs, e.g. 3547c8e32cc1SDaniel Vetter * usb display-link, mipi manual update panels or edp panel self refresh modes. 3548c8e32cc1SDaniel Vetter * 3549c8e32cc1SDaniel Vetter * Modesetting drivers which always update the frontbuffer do not need to 3550c8e32cc1SDaniel Vetter * implement the corresponding ->dirty framebuffer callback. 3551c8e32cc1SDaniel Vetter * 3552c8e32cc1SDaniel Vetter * Called by the user via ioctl. 3553c8e32cc1SDaniel Vetter * 3554c8e32cc1SDaniel Vetter * Returns: 35551a498633SDaniel Vetter * Zero on success, negative errno on failure. 3556c8e32cc1SDaniel Vetter */ 3557884840aaSJakob Bornecrantz int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 3558884840aaSJakob Bornecrantz void *data, struct drm_file *file_priv) 3559884840aaSJakob Bornecrantz { 3560884840aaSJakob Bornecrantz struct drm_clip_rect __user *clips_ptr; 3561884840aaSJakob Bornecrantz struct drm_clip_rect *clips = NULL; 3562884840aaSJakob Bornecrantz struct drm_mode_fb_dirty_cmd *r = data; 3563884840aaSJakob Bornecrantz struct drm_framebuffer *fb; 3564884840aaSJakob Bornecrantz unsigned flags; 3565884840aaSJakob Bornecrantz int num_clips; 35664a1b0714SLaurent Pinchart int ret; 3567884840aaSJakob Bornecrantz 3568fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3569fb3b06c8SDave Airlie return -EINVAL; 3570fb3b06c8SDave Airlie 3571786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, r->fb_id); 35724ccf097fSDaniel Vetter if (!fb) 357337c4e705SVille Syrjälä return -ENOENT; 3574884840aaSJakob Bornecrantz 3575884840aaSJakob Bornecrantz num_clips = r->num_clips; 357681f6c7f8SVille Syrjälä clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; 3577884840aaSJakob Bornecrantz 3578884840aaSJakob Bornecrantz if (!num_clips != !clips_ptr) { 3579884840aaSJakob Bornecrantz ret = -EINVAL; 3580884840aaSJakob Bornecrantz goto out_err1; 3581884840aaSJakob Bornecrantz } 3582884840aaSJakob Bornecrantz 3583884840aaSJakob Bornecrantz flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; 3584884840aaSJakob Bornecrantz 3585884840aaSJakob Bornecrantz /* If userspace annotates copy, clips must come in pairs */ 3586884840aaSJakob Bornecrantz if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { 3587884840aaSJakob Bornecrantz ret = -EINVAL; 3588884840aaSJakob Bornecrantz goto out_err1; 3589884840aaSJakob Bornecrantz } 3590884840aaSJakob Bornecrantz 3591884840aaSJakob Bornecrantz if (num_clips && clips_ptr) { 3592a5cd3351SXi Wang if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { 3593a5cd3351SXi Wang ret = -EINVAL; 3594a5cd3351SXi Wang goto out_err1; 3595a5cd3351SXi Wang } 3596bd3f0ff9SThierry Reding clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); 3597884840aaSJakob Bornecrantz if (!clips) { 3598884840aaSJakob Bornecrantz ret = -ENOMEM; 3599884840aaSJakob Bornecrantz goto out_err1; 3600884840aaSJakob Bornecrantz } 3601884840aaSJakob Bornecrantz 3602884840aaSJakob Bornecrantz ret = copy_from_user(clips, clips_ptr, 3603884840aaSJakob Bornecrantz num_clips * sizeof(*clips)); 3604e902a358SDan Carpenter if (ret) { 3605e902a358SDan Carpenter ret = -EFAULT; 3606884840aaSJakob Bornecrantz goto out_err2; 3607884840aaSJakob Bornecrantz } 3608e902a358SDan Carpenter } 3609884840aaSJakob Bornecrantz 3610884840aaSJakob Bornecrantz if (fb->funcs->dirty) { 361102b00162SThomas Hellstrom ret = fb->funcs->dirty(fb, file_priv, flags, r->color, 361202b00162SThomas Hellstrom clips, num_clips); 3613884840aaSJakob Bornecrantz } else { 3614884840aaSJakob Bornecrantz ret = -ENOSYS; 3615884840aaSJakob Bornecrantz } 3616884840aaSJakob Bornecrantz 3617884840aaSJakob Bornecrantz out_err2: 3618884840aaSJakob Bornecrantz kfree(clips); 3619884840aaSJakob Bornecrantz out_err1: 36204ccf097fSDaniel Vetter drm_framebuffer_unreference(fb); 36214ccf097fSDaniel Vetter 3622884840aaSJakob Bornecrantz return ret; 3623884840aaSJakob Bornecrantz } 3624884840aaSJakob Bornecrantz 3625f453ba04SDave Airlie /** 3626f453ba04SDave Airlie * drm_fb_release - remove and free the FBs on this file 3627065a50edSDaniel Vetter * @priv: drm file for the ioctl 3628f453ba04SDave Airlie * 3629f453ba04SDave Airlie * Destroy all the FBs associated with @filp. 3630f453ba04SDave Airlie * 3631f453ba04SDave Airlie * Called by the user via ioctl. 3632f453ba04SDave Airlie * 3633c8e32cc1SDaniel Vetter * Returns: 36341a498633SDaniel Vetter * Zero on success, negative errno on failure. 3635f453ba04SDave Airlie */ 3636ea39f835SKristian Høgsberg void drm_fb_release(struct drm_file *priv) 3637f453ba04SDave Airlie { 3638f453ba04SDave Airlie struct drm_framebuffer *fb, *tfb; 3639f2d580b9SMaarten Lankhorst struct drm_mode_rmfb_work arg; 3640f2d580b9SMaarten Lankhorst 3641f2d580b9SMaarten Lankhorst INIT_LIST_HEAD(&arg.fbs); 3642f453ba04SDave Airlie 36431b116297SDaniel Vetter /* 36441b116297SDaniel Vetter * When the file gets released that means no one else can access the fb 3645e2db726bSMartin Peres * list any more, so no need to grab fpriv->fbs_lock. And we need to 36461b116297SDaniel Vetter * avoid upsetting lockdep since the universal cursor code adds a 36471b116297SDaniel Vetter * framebuffer while holding mutex locks. 36481b116297SDaniel Vetter * 36491b116297SDaniel Vetter * Note that a real deadlock between fpriv->fbs_lock and the modeset 36501b116297SDaniel Vetter * locks is impossible here since no one else but this function can get 36511b116297SDaniel Vetter * at it any more. 36521b116297SDaniel Vetter */ 3653f453ba04SDave Airlie list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { 3654f2d580b9SMaarten Lankhorst if (drm_framebuffer_read_refcount(fb) > 1) { 3655f2d580b9SMaarten Lankhorst list_move_tail(&fb->filp_head, &arg.fbs); 3656f2d580b9SMaarten Lankhorst } else { 36574b096ac1SDaniel Vetter list_del_init(&fb->filp_head); 36582b677e8cSDaniel Vetter 365973f7570bSMaarten Lankhorst /* This drops the fpriv->fbs reference. */ 366013803132SMaarten Lankhorst drm_framebuffer_unreference(fb); 3661f453ba04SDave Airlie } 3662f453ba04SDave Airlie } 3663f453ba04SDave Airlie 3664f2d580b9SMaarten Lankhorst if (!list_empty(&arg.fbs)) { 3665f2d580b9SMaarten Lankhorst INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn); 3666f2d580b9SMaarten Lankhorst 3667f2d580b9SMaarten Lankhorst schedule_work(&arg.work); 3668f2d580b9SMaarten Lankhorst flush_work(&arg.work); 3669f2d580b9SMaarten Lankhorst destroy_work_on_stack(&arg.work); 3670f2d580b9SMaarten Lankhorst } 3671f2d580b9SMaarten Lankhorst } 3672f2d580b9SMaarten Lankhorst 3673c8e32cc1SDaniel Vetter /** 3674c8e32cc1SDaniel Vetter * drm_property_create - create a new property type 3675c8e32cc1SDaniel Vetter * @dev: drm device 3676c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3677c8e32cc1SDaniel Vetter * @name: name of the property 3678c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3679c8e32cc1SDaniel Vetter * 3680c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3681c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3682c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3683c8e32cc1SDaniel Vetter * 36843b5b9932SDamien Lespiau * Note that the DRM core keeps a per-device list of properties and that, if 36853b5b9932SDamien Lespiau * drm_mode_config_cleanup() is called, it will destroy all properties created 36863b5b9932SDamien Lespiau * by the driver. 36873b5b9932SDamien Lespiau * 3688c8e32cc1SDaniel Vetter * Returns: 3689c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3690c8e32cc1SDaniel Vetter */ 3691f453ba04SDave Airlie struct drm_property *drm_property_create(struct drm_device *dev, int flags, 3692f453ba04SDave Airlie const char *name, int num_values) 3693f453ba04SDave Airlie { 3694f453ba04SDave Airlie struct drm_property *property = NULL; 36956bfc56aaSVille Syrjälä int ret; 3696f453ba04SDave Airlie 3697f453ba04SDave Airlie property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); 3698f453ba04SDave Airlie if (!property) 3699f453ba04SDave Airlie return NULL; 3700f453ba04SDave Airlie 370198f75de4SRob Clark property->dev = dev; 370298f75de4SRob Clark 3703f453ba04SDave Airlie if (num_values) { 3704bd3f0ff9SThierry Reding property->values = kcalloc(num_values, sizeof(uint64_t), 3705bd3f0ff9SThierry Reding GFP_KERNEL); 3706f453ba04SDave Airlie if (!property->values) 3707f453ba04SDave Airlie goto fail; 3708f453ba04SDave Airlie } 3709f453ba04SDave Airlie 37106bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); 37116bfc56aaSVille Syrjälä if (ret) 37126bfc56aaSVille Syrjälä goto fail; 37136bfc56aaSVille Syrjälä 3714f453ba04SDave Airlie property->flags = flags; 3715f453ba04SDave Airlie property->num_values = num_values; 37163758b341SDaniel Vetter INIT_LIST_HEAD(&property->enum_list); 3717f453ba04SDave Airlie 3718471dd2efSVinson Lee if (name) { 3719f453ba04SDave Airlie strncpy(property->name, name, DRM_PROP_NAME_LEN); 3720471dd2efSVinson Lee property->name[DRM_PROP_NAME_LEN-1] = '\0'; 3721471dd2efSVinson Lee } 3722f453ba04SDave Airlie 3723f453ba04SDave Airlie list_add_tail(&property->head, &dev->mode_config.property_list); 37245ea22f24SRob Clark 37255ea22f24SRob Clark WARN_ON(!drm_property_type_valid(property)); 37265ea22f24SRob Clark 3727f453ba04SDave Airlie return property; 3728f453ba04SDave Airlie fail: 37296bfc56aaSVille Syrjälä kfree(property->values); 3730f453ba04SDave Airlie kfree(property); 3731f453ba04SDave Airlie return NULL; 3732f453ba04SDave Airlie } 3733f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_create); 3734f453ba04SDave Airlie 3735c8e32cc1SDaniel Vetter /** 37362aa9d2bcSThierry Reding * drm_property_create_enum - create a new enumeration property type 3737c8e32cc1SDaniel Vetter * @dev: drm device 3738c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3739c8e32cc1SDaniel Vetter * @name: name of the property 3740c8e32cc1SDaniel Vetter * @props: enumeration lists with property values 3741c8e32cc1SDaniel Vetter * @num_values: number of pre-defined values 3742c8e32cc1SDaniel Vetter * 3743c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3744c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3745c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3746c8e32cc1SDaniel Vetter * 3747c8e32cc1SDaniel Vetter * Userspace is only allowed to set one of the predefined values for enumeration 3748c8e32cc1SDaniel Vetter * properties. 3749c8e32cc1SDaniel Vetter * 3750c8e32cc1SDaniel Vetter * Returns: 3751c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3752c8e32cc1SDaniel Vetter */ 37534a67d391SSascha Hauer struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 37544a67d391SSascha Hauer const char *name, 37554a67d391SSascha Hauer const struct drm_prop_enum_list *props, 37564a67d391SSascha Hauer int num_values) 37574a67d391SSascha Hauer { 37584a67d391SSascha Hauer struct drm_property *property; 37594a67d391SSascha Hauer int i, ret; 37604a67d391SSascha Hauer 37614a67d391SSascha Hauer flags |= DRM_MODE_PROP_ENUM; 37624a67d391SSascha Hauer 37634a67d391SSascha Hauer property = drm_property_create(dev, flags, name, num_values); 37644a67d391SSascha Hauer if (!property) 37654a67d391SSascha Hauer return NULL; 37664a67d391SSascha Hauer 37674a67d391SSascha Hauer for (i = 0; i < num_values; i++) { 37684a67d391SSascha Hauer ret = drm_property_add_enum(property, i, 37694a67d391SSascha Hauer props[i].type, 37704a67d391SSascha Hauer props[i].name); 37714a67d391SSascha Hauer if (ret) { 37724a67d391SSascha Hauer drm_property_destroy(dev, property); 37734a67d391SSascha Hauer return NULL; 37744a67d391SSascha Hauer } 37754a67d391SSascha Hauer } 37764a67d391SSascha Hauer 37774a67d391SSascha Hauer return property; 37784a67d391SSascha Hauer } 37794a67d391SSascha Hauer EXPORT_SYMBOL(drm_property_create_enum); 37804a67d391SSascha Hauer 3781c8e32cc1SDaniel Vetter /** 37822aa9d2bcSThierry Reding * drm_property_create_bitmask - create a new bitmask property type 3783c8e32cc1SDaniel Vetter * @dev: drm device 3784c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3785c8e32cc1SDaniel Vetter * @name: name of the property 3786c8e32cc1SDaniel Vetter * @props: enumeration lists with property bitflags 3787295ee853SDaniel Vetter * @num_props: size of the @props array 3788295ee853SDaniel Vetter * @supported_bits: bitmask of all supported enumeration values 3789c8e32cc1SDaniel Vetter * 3790295ee853SDaniel Vetter * This creates a new bitmask drm property which can then be attached to a drm 3791c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3792c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3793c8e32cc1SDaniel Vetter * 3794c8e32cc1SDaniel Vetter * Compared to plain enumeration properties userspace is allowed to set any 3795c8e32cc1SDaniel Vetter * or'ed together combination of the predefined property bitflag values 3796c8e32cc1SDaniel Vetter * 3797c8e32cc1SDaniel Vetter * Returns: 3798c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3799c8e32cc1SDaniel Vetter */ 380049e27545SRob Clark struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 380149e27545SRob Clark int flags, const char *name, 380249e27545SRob Clark const struct drm_prop_enum_list *props, 38037689ffb3SVille Syrjälä int num_props, 38047689ffb3SVille Syrjälä uint64_t supported_bits) 380549e27545SRob Clark { 380649e27545SRob Clark struct drm_property *property; 38077689ffb3SVille Syrjälä int i, ret, index = 0; 38087689ffb3SVille Syrjälä int num_values = hweight64(supported_bits); 380949e27545SRob Clark 381049e27545SRob Clark flags |= DRM_MODE_PROP_BITMASK; 381149e27545SRob Clark 381249e27545SRob Clark property = drm_property_create(dev, flags, name, num_values); 381349e27545SRob Clark if (!property) 381449e27545SRob Clark return NULL; 38157689ffb3SVille Syrjälä for (i = 0; i < num_props; i++) { 38167689ffb3SVille Syrjälä if (!(supported_bits & (1ULL << props[i].type))) 38177689ffb3SVille Syrjälä continue; 381849e27545SRob Clark 38197689ffb3SVille Syrjälä if (WARN_ON(index >= num_values)) { 38207689ffb3SVille Syrjälä drm_property_destroy(dev, property); 38217689ffb3SVille Syrjälä return NULL; 38227689ffb3SVille Syrjälä } 38237689ffb3SVille Syrjälä 38247689ffb3SVille Syrjälä ret = drm_property_add_enum(property, index++, 382549e27545SRob Clark props[i].type, 382649e27545SRob Clark props[i].name); 382749e27545SRob Clark if (ret) { 382849e27545SRob Clark drm_property_destroy(dev, property); 382949e27545SRob Clark return NULL; 383049e27545SRob Clark } 383149e27545SRob Clark } 383249e27545SRob Clark 383349e27545SRob Clark return property; 383449e27545SRob Clark } 383549e27545SRob Clark EXPORT_SYMBOL(drm_property_create_bitmask); 383649e27545SRob Clark 3837ebc44cf3SRob Clark static struct drm_property *property_create_range(struct drm_device *dev, 3838ebc44cf3SRob Clark int flags, const char *name, 3839ebc44cf3SRob Clark uint64_t min, uint64_t max) 3840ebc44cf3SRob Clark { 3841ebc44cf3SRob Clark struct drm_property *property; 3842ebc44cf3SRob Clark 3843ebc44cf3SRob Clark property = drm_property_create(dev, flags, name, 2); 3844ebc44cf3SRob Clark if (!property) 3845ebc44cf3SRob Clark return NULL; 3846ebc44cf3SRob Clark 3847ebc44cf3SRob Clark property->values[0] = min; 3848ebc44cf3SRob Clark property->values[1] = max; 3849ebc44cf3SRob Clark 3850ebc44cf3SRob Clark return property; 3851ebc44cf3SRob Clark } 3852ebc44cf3SRob Clark 3853c8e32cc1SDaniel Vetter /** 3854960cd9d4SDaniel Vetter * drm_property_create_range - create a new unsigned ranged property type 3855c8e32cc1SDaniel Vetter * @dev: drm device 3856c8e32cc1SDaniel Vetter * @flags: flags specifying the property type 3857c8e32cc1SDaniel Vetter * @name: name of the property 3858c8e32cc1SDaniel Vetter * @min: minimum value of the property 3859c8e32cc1SDaniel Vetter * @max: maximum value of the property 3860c8e32cc1SDaniel Vetter * 3861c8e32cc1SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3862c8e32cc1SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3863c8e32cc1SDaniel Vetter * freed with drm_property_destroy. 3864c8e32cc1SDaniel Vetter * 3865960cd9d4SDaniel Vetter * Userspace is allowed to set any unsigned integer value in the (min, max) 3866960cd9d4SDaniel Vetter * range inclusive. 3867c8e32cc1SDaniel Vetter * 3868c8e32cc1SDaniel Vetter * Returns: 3869c8e32cc1SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3870c8e32cc1SDaniel Vetter */ 3871d9bc3c02SSascha Hauer struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 3872d9bc3c02SSascha Hauer const char *name, 3873d9bc3c02SSascha Hauer uint64_t min, uint64_t max) 3874d9bc3c02SSascha Hauer { 3875ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, 3876ebc44cf3SRob Clark name, min, max); 3877d9bc3c02SSascha Hauer } 3878d9bc3c02SSascha Hauer EXPORT_SYMBOL(drm_property_create_range); 3879d9bc3c02SSascha Hauer 3880960cd9d4SDaniel Vetter /** 3881960cd9d4SDaniel Vetter * drm_property_create_signed_range - create a new signed ranged property type 3882960cd9d4SDaniel Vetter * @dev: drm device 3883960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3884960cd9d4SDaniel Vetter * @name: name of the property 3885960cd9d4SDaniel Vetter * @min: minimum value of the property 3886960cd9d4SDaniel Vetter * @max: maximum value of the property 3887960cd9d4SDaniel Vetter * 3888960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3889960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3890960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3891960cd9d4SDaniel Vetter * 3892960cd9d4SDaniel Vetter * Userspace is allowed to set any signed integer value in the (min, max) 3893960cd9d4SDaniel Vetter * range inclusive. 3894960cd9d4SDaniel Vetter * 3895960cd9d4SDaniel Vetter * Returns: 3896960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3897960cd9d4SDaniel Vetter */ 3898ebc44cf3SRob Clark struct drm_property *drm_property_create_signed_range(struct drm_device *dev, 3899ebc44cf3SRob Clark int flags, const char *name, 3900ebc44cf3SRob Clark int64_t min, int64_t max) 3901ebc44cf3SRob Clark { 3902ebc44cf3SRob Clark return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, 3903ebc44cf3SRob Clark name, I642U64(min), I642U64(max)); 3904ebc44cf3SRob Clark } 3905ebc44cf3SRob Clark EXPORT_SYMBOL(drm_property_create_signed_range); 3906ebc44cf3SRob Clark 3907960cd9d4SDaniel Vetter /** 3908960cd9d4SDaniel Vetter * drm_property_create_object - create a new object property type 3909960cd9d4SDaniel Vetter * @dev: drm device 3910960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3911960cd9d4SDaniel Vetter * @name: name of the property 3912960cd9d4SDaniel Vetter * @type: object type from DRM_MODE_OBJECT_* defines 3913960cd9d4SDaniel Vetter * 3914960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3915960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3916960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3917960cd9d4SDaniel Vetter * 3918960cd9d4SDaniel Vetter * Userspace is only allowed to set this to any property value of the given 3919960cd9d4SDaniel Vetter * @type. Only useful for atomic properties, which is enforced. 3920960cd9d4SDaniel Vetter * 3921960cd9d4SDaniel Vetter * Returns: 3922960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3923960cd9d4SDaniel Vetter */ 392498f75de4SRob Clark struct drm_property *drm_property_create_object(struct drm_device *dev, 392598f75de4SRob Clark int flags, const char *name, uint32_t type) 392698f75de4SRob Clark { 392798f75de4SRob Clark struct drm_property *property; 392898f75de4SRob Clark 392998f75de4SRob Clark flags |= DRM_MODE_PROP_OBJECT; 393098f75de4SRob Clark 3931960cd9d4SDaniel Vetter if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) 3932960cd9d4SDaniel Vetter return NULL; 3933960cd9d4SDaniel Vetter 393498f75de4SRob Clark property = drm_property_create(dev, flags, name, 1); 393598f75de4SRob Clark if (!property) 393698f75de4SRob Clark return NULL; 393798f75de4SRob Clark 393898f75de4SRob Clark property->values[0] = type; 393998f75de4SRob Clark 394098f75de4SRob Clark return property; 394198f75de4SRob Clark } 394298f75de4SRob Clark EXPORT_SYMBOL(drm_property_create_object); 394398f75de4SRob Clark 3944c8e32cc1SDaniel Vetter /** 3945960cd9d4SDaniel Vetter * drm_property_create_bool - create a new boolean property type 3946960cd9d4SDaniel Vetter * @dev: drm device 3947960cd9d4SDaniel Vetter * @flags: flags specifying the property type 3948960cd9d4SDaniel Vetter * @name: name of the property 3949960cd9d4SDaniel Vetter * 3950960cd9d4SDaniel Vetter * This creates a new generic drm property which can then be attached to a drm 3951960cd9d4SDaniel Vetter * object with drm_object_attach_property. The returned property object must be 3952960cd9d4SDaniel Vetter * freed with drm_property_destroy. 3953960cd9d4SDaniel Vetter * 3954960cd9d4SDaniel Vetter * This is implemented as a ranged property with only {0, 1} as valid values. 3955960cd9d4SDaniel Vetter * 3956960cd9d4SDaniel Vetter * Returns: 3957960cd9d4SDaniel Vetter * A pointer to the newly created property on success, NULL on failure. 3958960cd9d4SDaniel Vetter */ 3959960cd9d4SDaniel Vetter struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, 3960960cd9d4SDaniel Vetter const char *name) 3961960cd9d4SDaniel Vetter { 3962960cd9d4SDaniel Vetter return drm_property_create_range(dev, flags, name, 0, 1); 3963960cd9d4SDaniel Vetter } 3964960cd9d4SDaniel Vetter EXPORT_SYMBOL(drm_property_create_bool); 3965960cd9d4SDaniel Vetter 3966960cd9d4SDaniel Vetter /** 3967c8e32cc1SDaniel Vetter * drm_property_add_enum - add a possible value to an enumeration property 3968c8e32cc1SDaniel Vetter * @property: enumeration property to change 3969c8e32cc1SDaniel Vetter * @index: index of the new enumeration 3970c8e32cc1SDaniel Vetter * @value: value of the new enumeration 3971c8e32cc1SDaniel Vetter * @name: symbolic name of the new enumeration 3972c8e32cc1SDaniel Vetter * 3973c8e32cc1SDaniel Vetter * This functions adds enumerations to a property. 3974c8e32cc1SDaniel Vetter * 3975c8e32cc1SDaniel Vetter * It's use is deprecated, drivers should use one of the more specific helpers 3976c8e32cc1SDaniel Vetter * to directly create the property with all enumerations already attached. 3977c8e32cc1SDaniel Vetter * 3978c8e32cc1SDaniel Vetter * Returns: 3979c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 3980c8e32cc1SDaniel Vetter */ 3981f453ba04SDave Airlie int drm_property_add_enum(struct drm_property *property, int index, 3982f453ba04SDave Airlie uint64_t value, const char *name) 3983f453ba04SDave Airlie { 3984f453ba04SDave Airlie struct drm_property_enum *prop_enum; 3985f453ba04SDave Airlie 39865ea22f24SRob Clark if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 39875ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) 398849e27545SRob Clark return -EINVAL; 398949e27545SRob Clark 399049e27545SRob Clark /* 399149e27545SRob Clark * Bitmask enum properties have the additional constraint of values 399249e27545SRob Clark * from 0 to 63 399349e27545SRob Clark */ 39945ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && 39955ea22f24SRob Clark (value > 63)) 3996f453ba04SDave Airlie return -EINVAL; 3997f453ba04SDave Airlie 39983758b341SDaniel Vetter if (!list_empty(&property->enum_list)) { 39993758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 4000f453ba04SDave Airlie if (prop_enum->value == value) { 4001f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 4002f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 4003f453ba04SDave Airlie return 0; 4004f453ba04SDave Airlie } 4005f453ba04SDave Airlie } 4006f453ba04SDave Airlie } 4007f453ba04SDave Airlie 4008f453ba04SDave Airlie prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); 4009f453ba04SDave Airlie if (!prop_enum) 4010f453ba04SDave Airlie return -ENOMEM; 4011f453ba04SDave Airlie 4012f453ba04SDave Airlie strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 4013f453ba04SDave Airlie prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 4014f453ba04SDave Airlie prop_enum->value = value; 4015f453ba04SDave Airlie 4016f453ba04SDave Airlie property->values[index] = value; 40173758b341SDaniel Vetter list_add_tail(&prop_enum->head, &property->enum_list); 4018f453ba04SDave Airlie return 0; 4019f453ba04SDave Airlie } 4020f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_add_enum); 4021f453ba04SDave Airlie 4022c8e32cc1SDaniel Vetter /** 4023c8e32cc1SDaniel Vetter * drm_property_destroy - destroy a drm property 4024c8e32cc1SDaniel Vetter * @dev: drm device 4025c8e32cc1SDaniel Vetter * @property: property to destry 4026c8e32cc1SDaniel Vetter * 4027c8e32cc1SDaniel Vetter * This function frees a property including any attached resources like 4028c8e32cc1SDaniel Vetter * enumeration values. 4029c8e32cc1SDaniel Vetter */ 4030f453ba04SDave Airlie void drm_property_destroy(struct drm_device *dev, struct drm_property *property) 4031f453ba04SDave Airlie { 4032f453ba04SDave Airlie struct drm_property_enum *prop_enum, *pt; 4033f453ba04SDave Airlie 40343758b341SDaniel Vetter list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { 4035f453ba04SDave Airlie list_del(&prop_enum->head); 4036f453ba04SDave Airlie kfree(prop_enum); 4037f453ba04SDave Airlie } 4038f453ba04SDave Airlie 4039f453ba04SDave Airlie if (property->num_values) 4040f453ba04SDave Airlie kfree(property->values); 40417c8f6d25SDave Airlie drm_mode_object_unregister(dev, &property->base); 4042f453ba04SDave Airlie list_del(&property->head); 4043f453ba04SDave Airlie kfree(property); 4044f453ba04SDave Airlie } 4045f453ba04SDave Airlie EXPORT_SYMBOL(drm_property_destroy); 4046f453ba04SDave Airlie 4047c8e32cc1SDaniel Vetter /** 4048c8e32cc1SDaniel Vetter * drm_object_attach_property - attach a property to a modeset object 4049c8e32cc1SDaniel Vetter * @obj: drm modeset object 4050c8e32cc1SDaniel Vetter * @property: property to attach 4051c8e32cc1SDaniel Vetter * @init_val: initial value of the property 4052c8e32cc1SDaniel Vetter * 4053c8e32cc1SDaniel Vetter * This attaches the given property to the modeset object with the given initial 4054c8e32cc1SDaniel Vetter * value. Currently this function cannot fail since the properties are stored in 4055c8e32cc1SDaniel Vetter * a statically sized array. 4056c8e32cc1SDaniel Vetter */ 4057c543188aSPaulo Zanoni void drm_object_attach_property(struct drm_mode_object *obj, 4058c543188aSPaulo Zanoni struct drm_property *property, 4059c543188aSPaulo Zanoni uint64_t init_val) 4060c543188aSPaulo Zanoni { 40617f88a9beSPaulo Zanoni int count = obj->properties->count; 4062c543188aSPaulo Zanoni 40637f88a9beSPaulo Zanoni if (count == DRM_OBJECT_MAX_PROPERTY) { 40647f88a9beSPaulo Zanoni WARN(1, "Failed to attach object property (type: 0x%x). Please " 40657f88a9beSPaulo Zanoni "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " 40667f88a9beSPaulo Zanoni "you see this message on the same object type.\n", 40677f88a9beSPaulo Zanoni obj->type); 4068c543188aSPaulo Zanoni return; 4069c543188aSPaulo Zanoni } 4070c543188aSPaulo Zanoni 4071b17cd757SRob Clark obj->properties->properties[count] = property; 40727f88a9beSPaulo Zanoni obj->properties->values[count] = init_val; 40737f88a9beSPaulo Zanoni obj->properties->count++; 407488a48e29SRob Clark if (property->flags & DRM_MODE_PROP_ATOMIC) 407588a48e29SRob Clark obj->properties->atomic_count++; 4076c543188aSPaulo Zanoni } 4077c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_attach_property); 4078c543188aSPaulo Zanoni 4079c8e32cc1SDaniel Vetter /** 4080c8e32cc1SDaniel Vetter * drm_object_property_set_value - set the value of a property 4081c8e32cc1SDaniel Vetter * @obj: drm mode object to set property value for 4082c8e32cc1SDaniel Vetter * @property: property to set 4083c8e32cc1SDaniel Vetter * @val: value the property should be set to 4084c8e32cc1SDaniel Vetter * 4085c8e32cc1SDaniel Vetter * This functions sets a given property on a given object. This function only 4086c8e32cc1SDaniel Vetter * changes the software state of the property, it does not call into the 4087c8e32cc1SDaniel Vetter * driver's ->set_property callback. 4088c8e32cc1SDaniel Vetter * 4089c8e32cc1SDaniel Vetter * Returns: 4090c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 4091c8e32cc1SDaniel Vetter */ 4092c543188aSPaulo Zanoni int drm_object_property_set_value(struct drm_mode_object *obj, 4093c543188aSPaulo Zanoni struct drm_property *property, uint64_t val) 4094c543188aSPaulo Zanoni { 4095c543188aSPaulo Zanoni int i; 4096c543188aSPaulo Zanoni 40977f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 4098b17cd757SRob Clark if (obj->properties->properties[i] == property) { 4099c543188aSPaulo Zanoni obj->properties->values[i] = val; 4100c543188aSPaulo Zanoni return 0; 4101c543188aSPaulo Zanoni } 4102c543188aSPaulo Zanoni } 4103c543188aSPaulo Zanoni 4104c543188aSPaulo Zanoni return -EINVAL; 4105c543188aSPaulo Zanoni } 4106c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_set_value); 4107c543188aSPaulo Zanoni 4108c8e32cc1SDaniel Vetter /** 4109c8e32cc1SDaniel Vetter * drm_object_property_get_value - retrieve the value of a property 4110c8e32cc1SDaniel Vetter * @obj: drm mode object to get property value from 4111c8e32cc1SDaniel Vetter * @property: property to retrieve 4112c8e32cc1SDaniel Vetter * @val: storage for the property value 4113c8e32cc1SDaniel Vetter * 4114c8e32cc1SDaniel Vetter * This function retrieves the softare state of the given property for the given 4115c8e32cc1SDaniel Vetter * property. Since there is no driver callback to retrieve the current property 4116c8e32cc1SDaniel Vetter * value this might be out of sync with the hardware, depending upon the driver 4117c8e32cc1SDaniel Vetter * and property. 4118c8e32cc1SDaniel Vetter * 4119c8e32cc1SDaniel Vetter * Returns: 4120c8e32cc1SDaniel Vetter * Zero on success, error code on failure. 4121c8e32cc1SDaniel Vetter */ 4122c543188aSPaulo Zanoni int drm_object_property_get_value(struct drm_mode_object *obj, 4123c543188aSPaulo Zanoni struct drm_property *property, uint64_t *val) 4124c543188aSPaulo Zanoni { 4125c543188aSPaulo Zanoni int i; 4126c543188aSPaulo Zanoni 412788a48e29SRob Clark /* read-only properties bypass atomic mechanism and still store 412888a48e29SRob Clark * their value in obj->properties->values[].. mostly to avoid 412988a48e29SRob Clark * having to deal w/ EDID and similar props in atomic paths: 413088a48e29SRob Clark */ 413188a48e29SRob Clark if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && 413288a48e29SRob Clark !(property->flags & DRM_MODE_PROP_IMMUTABLE)) 413388a48e29SRob Clark return drm_atomic_get_property(obj, property, val); 413488a48e29SRob Clark 41357f88a9beSPaulo Zanoni for (i = 0; i < obj->properties->count; i++) { 4136b17cd757SRob Clark if (obj->properties->properties[i] == property) { 4137c543188aSPaulo Zanoni *val = obj->properties->values[i]; 4138c543188aSPaulo Zanoni return 0; 4139c543188aSPaulo Zanoni } 4140c543188aSPaulo Zanoni } 4141c543188aSPaulo Zanoni 4142c543188aSPaulo Zanoni return -EINVAL; 4143c543188aSPaulo Zanoni } 4144c543188aSPaulo Zanoni EXPORT_SYMBOL(drm_object_property_get_value); 4145c543188aSPaulo Zanoni 4146c8e32cc1SDaniel Vetter /** 41471a498633SDaniel Vetter * drm_mode_getproperty_ioctl - get the property metadata 4148c8e32cc1SDaniel Vetter * @dev: DRM device 4149c8e32cc1SDaniel Vetter * @data: ioctl data 4150c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4151c8e32cc1SDaniel Vetter * 41521a498633SDaniel Vetter * This function retrieves the metadata for a given property, like the different 41531a498633SDaniel Vetter * possible values for an enum property or the limits for a range property. 41541a498633SDaniel Vetter * 41551a498633SDaniel Vetter * Blob properties are special 4156c8e32cc1SDaniel Vetter * 4157c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4158c8e32cc1SDaniel Vetter * 4159c8e32cc1SDaniel Vetter * Returns: 41601a498633SDaniel Vetter * Zero on success, negative errno on failure. 4161c8e32cc1SDaniel Vetter */ 4162f453ba04SDave Airlie int drm_mode_getproperty_ioctl(struct drm_device *dev, 4163f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4164f453ba04SDave Airlie { 4165f453ba04SDave Airlie struct drm_mode_get_property *out_resp = data; 4166f453ba04SDave Airlie struct drm_property *property; 4167f453ba04SDave Airlie int enum_count = 0; 4168f453ba04SDave Airlie int value_count = 0; 4169f453ba04SDave Airlie int ret = 0, i; 4170f453ba04SDave Airlie int copied; 4171f453ba04SDave Airlie struct drm_property_enum *prop_enum; 4172f453ba04SDave Airlie struct drm_mode_property_enum __user *enum_ptr; 4173f453ba04SDave Airlie uint64_t __user *values_ptr; 4174f453ba04SDave Airlie 4175fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4176fb3b06c8SDave Airlie return -EINVAL; 4177fb3b06c8SDave Airlie 417884849903SDaniel Vetter drm_modeset_lock_all(dev); 4179a2b34e22SRob Clark property = drm_property_find(dev, out_resp->prop_id); 4180a2b34e22SRob Clark if (!property) { 4181f27657f2SVille Syrjälä ret = -ENOENT; 4182f453ba04SDave Airlie goto done; 4183f453ba04SDave Airlie } 4184f453ba04SDave Airlie 41855ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 41865ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 41873758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) 4188f453ba04SDave Airlie enum_count++; 4189f453ba04SDave Airlie } 4190f453ba04SDave Airlie 4191f453ba04SDave Airlie value_count = property->num_values; 4192f453ba04SDave Airlie 4193f453ba04SDave Airlie strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); 4194f453ba04SDave Airlie out_resp->name[DRM_PROP_NAME_LEN-1] = 0; 4195f453ba04SDave Airlie out_resp->flags = property->flags; 4196f453ba04SDave Airlie 4197f453ba04SDave Airlie if ((out_resp->count_values >= value_count) && value_count) { 419881f6c7f8SVille Syrjälä values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; 4199f453ba04SDave Airlie for (i = 0; i < value_count; i++) { 4200f453ba04SDave Airlie if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { 4201f453ba04SDave Airlie ret = -EFAULT; 4202f453ba04SDave Airlie goto done; 4203f453ba04SDave Airlie } 4204f453ba04SDave Airlie } 4205f453ba04SDave Airlie } 4206f453ba04SDave Airlie out_resp->count_values = value_count; 4207f453ba04SDave Airlie 42085ea22f24SRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || 42095ea22f24SRob Clark drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { 4210f453ba04SDave Airlie if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { 4211f453ba04SDave Airlie copied = 0; 421281f6c7f8SVille Syrjälä enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; 42133758b341SDaniel Vetter list_for_each_entry(prop_enum, &property->enum_list, head) { 4214f453ba04SDave Airlie 4215f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { 4216f453ba04SDave Airlie ret = -EFAULT; 4217f453ba04SDave Airlie goto done; 4218f453ba04SDave Airlie } 4219f453ba04SDave Airlie 4220f453ba04SDave Airlie if (copy_to_user(&enum_ptr[copied].name, 4221f453ba04SDave Airlie &prop_enum->name, DRM_PROP_NAME_LEN)) { 4222f453ba04SDave Airlie ret = -EFAULT; 4223f453ba04SDave Airlie goto done; 4224f453ba04SDave Airlie } 4225f453ba04SDave Airlie copied++; 4226f453ba04SDave Airlie } 4227f453ba04SDave Airlie } 4228f453ba04SDave Airlie out_resp->count_enum_blobs = enum_count; 4229f453ba04SDave Airlie } 4230f453ba04SDave Airlie 42313758b341SDaniel Vetter /* 42323758b341SDaniel Vetter * NOTE: The idea seems to have been to use this to read all the blob 42333758b341SDaniel Vetter * property values. But nothing ever added them to the corresponding 42343758b341SDaniel Vetter * list, userspace always used the special-purpose get_blob ioctl to 42353758b341SDaniel Vetter * read the value for a blob property. It also doesn't make a lot of 42363758b341SDaniel Vetter * sense to return values here when everything else is just metadata for 42373758b341SDaniel Vetter * the property itself. 42383758b341SDaniel Vetter */ 42393758b341SDaniel Vetter if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 42403758b341SDaniel Vetter out_resp->count_enum_blobs = 0; 4241f453ba04SDave Airlie done: 424284849903SDaniel Vetter drm_modeset_unlock_all(dev); 4243f453ba04SDave Airlie return ret; 4244f453ba04SDave Airlie } 4245f453ba04SDave Airlie 4246152ef5faSDaniel Vetter static void drm_property_free_blob(struct kref *kref) 4247152ef5faSDaniel Vetter { 4248152ef5faSDaniel Vetter struct drm_property_blob *blob = 4249152ef5faSDaniel Vetter container_of(kref, struct drm_property_blob, base.refcount); 4250152ef5faSDaniel Vetter 4251152ef5faSDaniel Vetter mutex_lock(&blob->dev->mode_config.blob_lock); 4252152ef5faSDaniel Vetter list_del(&blob->head_global); 4253152ef5faSDaniel Vetter mutex_unlock(&blob->dev->mode_config.blob_lock); 4254152ef5faSDaniel Vetter 4255152ef5faSDaniel Vetter drm_mode_object_unregister(blob->dev, &blob->base); 4256152ef5faSDaniel Vetter 4257152ef5faSDaniel Vetter kfree(blob); 4258152ef5faSDaniel Vetter } 4259152ef5faSDaniel Vetter 426099531d9bSDaniel Stone /** 426199531d9bSDaniel Stone * drm_property_create_blob - Create new blob property 426299531d9bSDaniel Stone * 426399531d9bSDaniel Stone * Creates a new blob property for a specified DRM device, optionally 426499531d9bSDaniel Stone * copying data. 426599531d9bSDaniel Stone * 426699531d9bSDaniel Stone * @dev: DRM device to create property for 426799531d9bSDaniel Stone * @length: Length to allocate for blob data 426899531d9bSDaniel Stone * @data: If specified, copies data into blob 426910e8cb7eSDaniel Stone * 427010e8cb7eSDaniel Stone * Returns: 427110e8cb7eSDaniel Stone * New blob property with a single reference on success, or an ERR_PTR 427210e8cb7eSDaniel Stone * value on failure. 427399531d9bSDaniel Stone */ 42746bcacf51SDaniel Stone struct drm_property_blob * 4275ecbbe59bSThierry Reding drm_property_create_blob(struct drm_device *dev, size_t length, 427612e6cecdSThierry Reding const void *data) 4277f453ba04SDave Airlie { 4278f453ba04SDave Airlie struct drm_property_blob *blob; 42796bfc56aaSVille Syrjälä int ret; 4280f453ba04SDave Airlie 42819ac0934bSDan Carpenter if (!length || length > ULONG_MAX - sizeof(struct drm_property_blob)) 428210e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 4283f453ba04SDave Airlie 4284f453ba04SDave Airlie blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); 4285f453ba04SDave Airlie if (!blob) 428610e8cb7eSDaniel Stone return ERR_PTR(-ENOMEM); 4287f453ba04SDave Airlie 4288e2f5d2eaSDaniel Stone /* This must be explicitly initialised, so we can safely call list_del 4289e2f5d2eaSDaniel Stone * on it in the removal handler, even if it isn't in a file list. */ 4290e2f5d2eaSDaniel Stone INIT_LIST_HEAD(&blob->head_file); 4291f453ba04SDave Airlie blob->length = length; 42926bcacf51SDaniel Stone blob->dev = dev; 4293f453ba04SDave Airlie 429499531d9bSDaniel Stone if (data) 4295f453ba04SDave Airlie memcpy(blob->data, data, length); 4296f453ba04SDave Airlie 4297152ef5faSDaniel Vetter ret = drm_mode_object_get_reg(dev, &blob->base, DRM_MODE_OBJECT_BLOB, 4298152ef5faSDaniel Vetter true, drm_property_free_blob); 42998fb6e7a5SDaniel Stone if (ret) { 43008fb6e7a5SDaniel Stone kfree(blob); 430110e8cb7eSDaniel Stone return ERR_PTR(-EINVAL); 43028fb6e7a5SDaniel Stone } 43038fb6e7a5SDaniel Stone 4304152ef5faSDaniel Vetter mutex_lock(&dev->mode_config.blob_lock); 4305e2f5d2eaSDaniel Stone list_add_tail(&blob->head_global, 4306e2f5d2eaSDaniel Stone &dev->mode_config.property_blob_list); 43078fb6e7a5SDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 43088fb6e7a5SDaniel Stone 4309f453ba04SDave Airlie return blob; 4310f453ba04SDave Airlie } 43116bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_create_blob); 4312f453ba04SDave Airlie 43136bcacf51SDaniel Stone /** 43146bcacf51SDaniel Stone * drm_property_unreference_blob - Unreference a blob property 43156bcacf51SDaniel Stone * 43166bcacf51SDaniel Stone * Drop a reference on a blob property. May free the object. 43176bcacf51SDaniel Stone * 4318f102c16eSDaniel Stone * @blob: Pointer to blob property 43196bcacf51SDaniel Stone */ 43206bcacf51SDaniel Stone void drm_property_unreference_blob(struct drm_property_blob *blob) 43216bcacf51SDaniel Stone { 43226bcacf51SDaniel Stone if (!blob) 43236bcacf51SDaniel Stone return; 43246bcacf51SDaniel Stone 4325152ef5faSDaniel Vetter drm_mode_object_unreference(&blob->base); 43266bcacf51SDaniel Stone } 43276bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_unreference_blob); 43286bcacf51SDaniel Stone 43296bcacf51SDaniel Stone /** 4330e2f5d2eaSDaniel Stone * drm_property_destroy_user_blobs - destroy all blobs created by this client 4331e2f5d2eaSDaniel Stone * @dev: DRM device 4332e2f5d2eaSDaniel Stone * @file_priv: destroy all blobs owned by this file handle 4333e2f5d2eaSDaniel Stone */ 4334e2f5d2eaSDaniel Stone void drm_property_destroy_user_blobs(struct drm_device *dev, 4335e2f5d2eaSDaniel Stone struct drm_file *file_priv) 4336e2f5d2eaSDaniel Stone { 4337e2f5d2eaSDaniel Stone struct drm_property_blob *blob, *bt; 4338e2f5d2eaSDaniel Stone 4339152ef5faSDaniel Vetter /* 4340152ef5faSDaniel Vetter * When the file gets released that means no one else can access the 4341152ef5faSDaniel Vetter * blob list any more, so no need to grab dev->blob_lock. 4342152ef5faSDaniel Vetter */ 4343e2f5d2eaSDaniel Stone list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { 4344e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4345152ef5faSDaniel Vetter drm_property_unreference_blob(blob); 4346e2f5d2eaSDaniel Stone } 4347e2f5d2eaSDaniel Stone } 4348e2f5d2eaSDaniel Stone 4349e2f5d2eaSDaniel Stone /** 43506bcacf51SDaniel Stone * drm_property_reference_blob - Take a reference on an existing property 43516bcacf51SDaniel Stone * 43526bcacf51SDaniel Stone * Take a new reference on an existing blob property. 43536bcacf51SDaniel Stone * 4354f102c16eSDaniel Stone * @blob: Pointer to blob property 43556bcacf51SDaniel Stone */ 43566bcacf51SDaniel Stone struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) 43576bcacf51SDaniel Stone { 4358152ef5faSDaniel Vetter drm_mode_object_reference(&blob->base); 43596bcacf51SDaniel Stone return blob; 43606bcacf51SDaniel Stone } 43616bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_reference_blob); 43626bcacf51SDaniel Stone 43636bcacf51SDaniel Stone /** 43646bcacf51SDaniel Stone * drm_property_lookup_blob - look up a blob property and take a reference 43656bcacf51SDaniel Stone * @dev: drm device 43666bcacf51SDaniel Stone * @id: id of the blob property 43676bcacf51SDaniel Stone * 43686bcacf51SDaniel Stone * If successful, this takes an additional reference to the blob property. 43696bcacf51SDaniel Stone * callers need to make sure to eventually unreference the returned property 43706bcacf51SDaniel Stone * again, using @drm_property_unreference_blob. 43716bcacf51SDaniel Stone */ 43726bcacf51SDaniel Stone struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, 43736bcacf51SDaniel Stone uint32_t id) 4374f453ba04SDave Airlie { 4375152ef5faSDaniel Vetter struct drm_mode_object *obj; 4376152ef5faSDaniel Vetter struct drm_property_blob *blob = NULL; 43776bcacf51SDaniel Stone 4378152ef5faSDaniel Vetter obj = _object_find(dev, id, DRM_MODE_OBJECT_BLOB); 4379152ef5faSDaniel Vetter if (obj) 4380152ef5faSDaniel Vetter blob = obj_to_blob(obj); 43816bcacf51SDaniel Stone return blob; 43826bcacf51SDaniel Stone } 43836bcacf51SDaniel Stone EXPORT_SYMBOL(drm_property_lookup_blob); 43846bcacf51SDaniel Stone 43856bcacf51SDaniel Stone /** 4386d2ed3436SDaniel Stone * drm_property_replace_global_blob - atomically replace existing blob property 4387d2ed3436SDaniel Stone * @dev: drm device 4388d2ed3436SDaniel Stone * @replace: location of blob property pointer to be replaced 4389d2ed3436SDaniel Stone * @length: length of data for new blob, or 0 for no data 4390d2ed3436SDaniel Stone * @data: content for new blob, or NULL for no data 4391d2ed3436SDaniel Stone * @obj_holds_id: optional object for property holding blob ID 4392d2ed3436SDaniel Stone * @prop_holds_id: optional property holding blob ID 4393d2ed3436SDaniel Stone * @return 0 on success or error on failure 4394d2ed3436SDaniel Stone * 4395d2ed3436SDaniel Stone * This function will atomically replace a global property in the blob list, 4396d2ed3436SDaniel Stone * optionally updating a property which holds the ID of that property. It is 4397d2ed3436SDaniel Stone * guaranteed to be atomic: no caller will be allowed to see intermediate 4398d2ed3436SDaniel Stone * results, and either the entire operation will succeed and clean up the 4399d2ed3436SDaniel Stone * previous property, or it will fail and the state will be unchanged. 4400d2ed3436SDaniel Stone * 4401d2ed3436SDaniel Stone * If length is 0 or data is NULL, no new blob will be created, and the holding 4402d2ed3436SDaniel Stone * property, if specified, will be set to 0. 4403d2ed3436SDaniel Stone * 4404d2ed3436SDaniel Stone * Access to the replace pointer is assumed to be protected by the caller, e.g. 4405d2ed3436SDaniel Stone * by holding the relevant modesetting object lock for its parent. 4406d2ed3436SDaniel Stone * 4407d2ed3436SDaniel Stone * For example, a drm_connector has a 'PATH' property, which contains the ID 4408d2ed3436SDaniel Stone * of a blob property with the value of the MST path information. Calling this 4409d2ed3436SDaniel Stone * function with replace pointing to the connector's path_blob_ptr, length and 4410d2ed3436SDaniel Stone * data set for the new path information, obj_holds_id set to the connector's 4411d2ed3436SDaniel Stone * base object, and prop_holds_id set to the path property name, will perform 4412d2ed3436SDaniel Stone * a completely atomic update. The access to path_blob_ptr is protected by the 4413d2ed3436SDaniel Stone * caller holding a lock on the connector. 4414d2ed3436SDaniel Stone */ 4415d2ed3436SDaniel Stone static int drm_property_replace_global_blob(struct drm_device *dev, 4416d2ed3436SDaniel Stone struct drm_property_blob **replace, 4417d2ed3436SDaniel Stone size_t length, 4418d2ed3436SDaniel Stone const void *data, 4419d2ed3436SDaniel Stone struct drm_mode_object *obj_holds_id, 4420d2ed3436SDaniel Stone struct drm_property *prop_holds_id) 4421d2ed3436SDaniel Stone { 4422d2ed3436SDaniel Stone struct drm_property_blob *new_blob = NULL; 4423d2ed3436SDaniel Stone struct drm_property_blob *old_blob = NULL; 4424d2ed3436SDaniel Stone int ret; 4425d2ed3436SDaniel Stone 4426d2ed3436SDaniel Stone WARN_ON(replace == NULL); 4427d2ed3436SDaniel Stone 4428d2ed3436SDaniel Stone old_blob = *replace; 4429d2ed3436SDaniel Stone 4430d2ed3436SDaniel Stone if (length && data) { 4431d2ed3436SDaniel Stone new_blob = drm_property_create_blob(dev, length, data); 443210e8cb7eSDaniel Stone if (IS_ERR(new_blob)) 443310e8cb7eSDaniel Stone return PTR_ERR(new_blob); 4434d2ed3436SDaniel Stone } 4435d2ed3436SDaniel Stone 4436d2ed3436SDaniel Stone /* This does not need to be synchronised with blob_lock, as the 4437d2ed3436SDaniel Stone * get_properties ioctl locks all modesetting objects, and 4438d2ed3436SDaniel Stone * obj_holds_id must be locked before calling here, so we cannot 4439d2ed3436SDaniel Stone * have its value out of sync with the list membership modified 4440d2ed3436SDaniel Stone * below under blob_lock. */ 4441d2ed3436SDaniel Stone if (obj_holds_id) { 4442d2ed3436SDaniel Stone ret = drm_object_property_set_value(obj_holds_id, 4443d2ed3436SDaniel Stone prop_holds_id, 4444d2ed3436SDaniel Stone new_blob ? 4445d2ed3436SDaniel Stone new_blob->base.id : 0); 4446d2ed3436SDaniel Stone if (ret != 0) 4447d2ed3436SDaniel Stone goto err_created; 4448d2ed3436SDaniel Stone } 4449d2ed3436SDaniel Stone 44506bcacf51SDaniel Stone drm_property_unreference_blob(old_blob); 4451d2ed3436SDaniel Stone *replace = new_blob; 4452d2ed3436SDaniel Stone 4453d2ed3436SDaniel Stone return 0; 4454d2ed3436SDaniel Stone 4455d2ed3436SDaniel Stone err_created: 44566bcacf51SDaniel Stone drm_property_unreference_blob(new_blob); 4457d2ed3436SDaniel Stone return ret; 4458f453ba04SDave Airlie } 4459f453ba04SDave Airlie 4460c8e32cc1SDaniel Vetter /** 4461c8e32cc1SDaniel Vetter * drm_mode_getblob_ioctl - get the contents of a blob property value 4462c8e32cc1SDaniel Vetter * @dev: DRM device 4463c8e32cc1SDaniel Vetter * @data: ioctl data 4464c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4465c8e32cc1SDaniel Vetter * 4466c8e32cc1SDaniel Vetter * This function retrieves the contents of a blob property. The value stored in 4467c8e32cc1SDaniel Vetter * an object's blob property is just a normal modeset object id. 4468c8e32cc1SDaniel Vetter * 4469c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4470c8e32cc1SDaniel Vetter * 4471c8e32cc1SDaniel Vetter * Returns: 44721a498633SDaniel Vetter * Zero on success, negative errno on failure. 4473c8e32cc1SDaniel Vetter */ 4474f453ba04SDave Airlie int drm_mode_getblob_ioctl(struct drm_device *dev, 4475f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4476f453ba04SDave Airlie { 4477f453ba04SDave Airlie struct drm_mode_get_blob *out_resp = data; 4478f453ba04SDave Airlie struct drm_property_blob *blob; 4479f453ba04SDave Airlie int ret = 0; 448081f6c7f8SVille Syrjälä void __user *blob_ptr; 4481f453ba04SDave Airlie 4482fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4483fb3b06c8SDave Airlie return -EINVAL; 4484fb3b06c8SDave Airlie 4485152ef5faSDaniel Vetter blob = drm_property_lookup_blob(dev, out_resp->blob_id); 4486152ef5faSDaniel Vetter if (!blob) 4487152ef5faSDaniel Vetter return -ENOENT; 4488f453ba04SDave Airlie 4489f453ba04SDave Airlie if (out_resp->length == blob->length) { 449081f6c7f8SVille Syrjälä blob_ptr = (void __user *)(unsigned long)out_resp->data; 4491f453ba04SDave Airlie if (copy_to_user(blob_ptr, blob->data, blob->length)) { 4492f453ba04SDave Airlie ret = -EFAULT; 4493152ef5faSDaniel Vetter goto unref; 4494f453ba04SDave Airlie } 4495f453ba04SDave Airlie } 4496f453ba04SDave Airlie out_resp->length = blob->length; 4497152ef5faSDaniel Vetter unref: 4498152ef5faSDaniel Vetter drm_property_unreference_blob(blob); 4499f453ba04SDave Airlie 4500f453ba04SDave Airlie return ret; 4501f453ba04SDave Airlie } 4502f453ba04SDave Airlie 4503cc7096fbSDave Airlie /** 4504e2f5d2eaSDaniel Stone * drm_mode_createblob_ioctl - create a new blob property 4505e2f5d2eaSDaniel Stone * @dev: DRM device 4506e2f5d2eaSDaniel Stone * @data: ioctl data 4507e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4508e2f5d2eaSDaniel Stone * 4509e2f5d2eaSDaniel Stone * This function creates a new blob property with user-defined values. In order 4510e2f5d2eaSDaniel Stone * to give us sensible validation and checking when creating, rather than at 4511e2f5d2eaSDaniel Stone * every potential use, we also require a type to be provided upfront. 4512e2f5d2eaSDaniel Stone * 4513e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4514e2f5d2eaSDaniel Stone * 4515e2f5d2eaSDaniel Stone * Returns: 4516e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4517e2f5d2eaSDaniel Stone */ 4518e2f5d2eaSDaniel Stone int drm_mode_createblob_ioctl(struct drm_device *dev, 4519e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4520e2f5d2eaSDaniel Stone { 4521e2f5d2eaSDaniel Stone struct drm_mode_create_blob *out_resp = data; 4522e2f5d2eaSDaniel Stone struct drm_property_blob *blob; 4523e2f5d2eaSDaniel Stone void __user *blob_ptr; 4524e2f5d2eaSDaniel Stone int ret = 0; 4525e2f5d2eaSDaniel Stone 4526e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4527e2f5d2eaSDaniel Stone return -EINVAL; 4528e2f5d2eaSDaniel Stone 4529e2f5d2eaSDaniel Stone blob = drm_property_create_blob(dev, out_resp->length, NULL); 4530e2f5d2eaSDaniel Stone if (IS_ERR(blob)) 4531e2f5d2eaSDaniel Stone return PTR_ERR(blob); 4532e2f5d2eaSDaniel Stone 4533e2f5d2eaSDaniel Stone blob_ptr = (void __user *)(unsigned long)out_resp->data; 4534e2f5d2eaSDaniel Stone if (copy_from_user(blob->data, blob_ptr, out_resp->length)) { 4535e2f5d2eaSDaniel Stone ret = -EFAULT; 4536e2f5d2eaSDaniel Stone goto out_blob; 4537e2f5d2eaSDaniel Stone } 4538e2f5d2eaSDaniel Stone 4539e2f5d2eaSDaniel Stone /* Dropping the lock between create_blob and our access here is safe 4540e2f5d2eaSDaniel Stone * as only the same file_priv can remove the blob; at this point, it is 4541e2f5d2eaSDaniel Stone * not associated with any file_priv. */ 4542e2f5d2eaSDaniel Stone mutex_lock(&dev->mode_config.blob_lock); 4543e2f5d2eaSDaniel Stone out_resp->blob_id = blob->base.id; 45448731b269SManeet Singh list_add_tail(&blob->head_file, &file_priv->blobs); 4545e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4546e2f5d2eaSDaniel Stone 4547e2f5d2eaSDaniel Stone return 0; 4548e2f5d2eaSDaniel Stone 4549e2f5d2eaSDaniel Stone out_blob: 4550e2f5d2eaSDaniel Stone drm_property_unreference_blob(blob); 4551e2f5d2eaSDaniel Stone return ret; 4552e2f5d2eaSDaniel Stone } 4553e2f5d2eaSDaniel Stone 4554e2f5d2eaSDaniel Stone /** 4555e2f5d2eaSDaniel Stone * drm_mode_destroyblob_ioctl - destroy a user blob property 4556e2f5d2eaSDaniel Stone * @dev: DRM device 4557e2f5d2eaSDaniel Stone * @data: ioctl data 4558e2f5d2eaSDaniel Stone * @file_priv: DRM file info 4559e2f5d2eaSDaniel Stone * 4560e2f5d2eaSDaniel Stone * Destroy an existing user-defined blob property. 4561e2f5d2eaSDaniel Stone * 4562e2f5d2eaSDaniel Stone * Called by the user via ioctl. 4563e2f5d2eaSDaniel Stone * 4564e2f5d2eaSDaniel Stone * Returns: 4565e2f5d2eaSDaniel Stone * Zero on success, negative errno on failure. 4566e2f5d2eaSDaniel Stone */ 4567e2f5d2eaSDaniel Stone int drm_mode_destroyblob_ioctl(struct drm_device *dev, 4568e2f5d2eaSDaniel Stone void *data, struct drm_file *file_priv) 4569e2f5d2eaSDaniel Stone { 4570e2f5d2eaSDaniel Stone struct drm_mode_destroy_blob *out_resp = data; 4571e2f5d2eaSDaniel Stone struct drm_property_blob *blob = NULL, *bt; 4572e2f5d2eaSDaniel Stone bool found = false; 4573e2f5d2eaSDaniel Stone int ret = 0; 4574e2f5d2eaSDaniel Stone 4575e2f5d2eaSDaniel Stone if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4576e2f5d2eaSDaniel Stone return -EINVAL; 4577e2f5d2eaSDaniel Stone 4578152ef5faSDaniel Vetter blob = drm_property_lookup_blob(dev, out_resp->blob_id); 4579152ef5faSDaniel Vetter if (!blob) 4580152ef5faSDaniel Vetter return -ENOENT; 4581e2f5d2eaSDaniel Stone 4582152ef5faSDaniel Vetter mutex_lock(&dev->mode_config.blob_lock); 4583e2f5d2eaSDaniel Stone /* Ensure the property was actually created by this user. */ 4584e2f5d2eaSDaniel Stone list_for_each_entry(bt, &file_priv->blobs, head_file) { 4585e2f5d2eaSDaniel Stone if (bt == blob) { 4586e2f5d2eaSDaniel Stone found = true; 4587e2f5d2eaSDaniel Stone break; 4588e2f5d2eaSDaniel Stone } 4589e2f5d2eaSDaniel Stone } 4590e2f5d2eaSDaniel Stone 4591e2f5d2eaSDaniel Stone if (!found) { 4592e2f5d2eaSDaniel Stone ret = -EPERM; 4593e2f5d2eaSDaniel Stone goto err; 4594e2f5d2eaSDaniel Stone } 4595e2f5d2eaSDaniel Stone 4596e2f5d2eaSDaniel Stone /* We must drop head_file here, because we may not be the last 4597e2f5d2eaSDaniel Stone * reference on the blob. */ 4598e2f5d2eaSDaniel Stone list_del_init(&blob->head_file); 4599e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4600e2f5d2eaSDaniel Stone 4601152ef5faSDaniel Vetter /* One reference from lookup, and one from the filp. */ 4602152ef5faSDaniel Vetter drm_property_unreference_blob(blob); 4603152ef5faSDaniel Vetter drm_property_unreference_blob(blob); 4604152ef5faSDaniel Vetter 4605e2f5d2eaSDaniel Stone return 0; 4606e2f5d2eaSDaniel Stone 4607e2f5d2eaSDaniel Stone err: 4608e2f5d2eaSDaniel Stone mutex_unlock(&dev->mode_config.blob_lock); 4609152ef5faSDaniel Vetter drm_property_unreference_blob(blob); 4610152ef5faSDaniel Vetter 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) 4709e24ff467SShixin Zeng 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 47741e8985a8STomi Valkeinen *ref = _object_find(property->dev, value, property->values[0]); 47751e8985a8STomi Valkeinen return *ref != NULL; 47763843e71fSRob Clark } 47772ca651d1SThierry Reding 477826a34815SPaulo Zanoni for (i = 0; i < property->num_values; i++) 477926a34815SPaulo Zanoni if (property->values[i] == value) 478026a34815SPaulo Zanoni return true; 478126a34815SPaulo Zanoni return false; 478226a34815SPaulo Zanoni } 478326a34815SPaulo Zanoni 4784d34f20d6SRob Clark void drm_property_change_valid_put(struct drm_property *property, 47853843e71fSRob Clark struct drm_mode_object *ref) 47863843e71fSRob Clark { 47873843e71fSRob Clark if (!ref) 47883843e71fSRob Clark return; 47893843e71fSRob Clark 47903843e71fSRob Clark if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { 4791027b3f8bSDave Airlie drm_mode_object_unreference(ref); 4792da9b2a38SDaniel Stone } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) 4793da9b2a38SDaniel Stone drm_property_unreference_blob(obj_to_blob(ref)); 47943843e71fSRob Clark } 47953843e71fSRob Clark 4796c8e32cc1SDaniel Vetter /** 4797c8e32cc1SDaniel Vetter * drm_mode_connector_property_set_ioctl - set the current value of a connector property 4798c8e32cc1SDaniel Vetter * @dev: DRM device 4799c8e32cc1SDaniel Vetter * @data: ioctl data 4800c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4801c8e32cc1SDaniel Vetter * 4802c8e32cc1SDaniel Vetter * This function sets the current value for a connectors's property. It also 4803c8e32cc1SDaniel Vetter * calls into a driver's ->set_property callback to update the hardware state 4804c8e32cc1SDaniel Vetter * 4805c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4806c8e32cc1SDaniel Vetter * 4807c8e32cc1SDaniel Vetter * Returns: 48081a498633SDaniel Vetter * Zero on success, negative errno on failure. 4809c8e32cc1SDaniel Vetter */ 4810f453ba04SDave Airlie int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 4811f453ba04SDave Airlie void *data, struct drm_file *file_priv) 4812f453ba04SDave Airlie { 48130057d8ddSPaulo Zanoni struct drm_mode_connector_set_property *conn_set_prop = data; 48140057d8ddSPaulo Zanoni struct drm_mode_obj_set_property obj_set_prop = { 48150057d8ddSPaulo Zanoni .value = conn_set_prop->value, 48160057d8ddSPaulo Zanoni .prop_id = conn_set_prop->prop_id, 48170057d8ddSPaulo Zanoni .obj_id = conn_set_prop->connector_id, 48180057d8ddSPaulo Zanoni .obj_type = DRM_MODE_OBJECT_CONNECTOR 48190057d8ddSPaulo Zanoni }; 4820f453ba04SDave Airlie 48210057d8ddSPaulo Zanoni /* It does all the locking and checking we need */ 48220057d8ddSPaulo Zanoni return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); 4823f453ba04SDave Airlie } 4824f453ba04SDave Airlie 4825c543188aSPaulo Zanoni static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, 4826c543188aSPaulo Zanoni struct drm_property *property, 4827c543188aSPaulo Zanoni uint64_t value) 4828c543188aSPaulo Zanoni { 4829c543188aSPaulo Zanoni int ret = -EINVAL; 4830c543188aSPaulo Zanoni struct drm_connector *connector = obj_to_connector(obj); 4831c543188aSPaulo Zanoni 4832c543188aSPaulo Zanoni /* Do DPMS ourselves */ 4833c543188aSPaulo Zanoni if (property == connector->dev->mode_config.dpms_property) { 48349a69a9acSMaarten Lankhorst ret = (*connector->funcs->dpms)(connector, (int)value); 4835c543188aSPaulo Zanoni } else if (connector->funcs->set_property) 4836c543188aSPaulo Zanoni ret = connector->funcs->set_property(connector, property, value); 4837c543188aSPaulo Zanoni 4838c543188aSPaulo Zanoni /* store the property value if successful */ 4839c543188aSPaulo Zanoni if (!ret) 484058495563SRob Clark drm_object_property_set_value(&connector->base, property, value); 4841c543188aSPaulo Zanoni return ret; 4842c543188aSPaulo Zanoni } 4843c543188aSPaulo Zanoni 4844bffd9de0SPaulo Zanoni static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, 4845bffd9de0SPaulo Zanoni struct drm_property *property, 4846bffd9de0SPaulo Zanoni uint64_t value) 4847bffd9de0SPaulo Zanoni { 4848bffd9de0SPaulo Zanoni int ret = -EINVAL; 4849bffd9de0SPaulo Zanoni struct drm_crtc *crtc = obj_to_crtc(obj); 4850bffd9de0SPaulo Zanoni 4851bffd9de0SPaulo Zanoni if (crtc->funcs->set_property) 4852bffd9de0SPaulo Zanoni ret = crtc->funcs->set_property(crtc, property, value); 4853bffd9de0SPaulo Zanoni if (!ret) 4854bffd9de0SPaulo Zanoni drm_object_property_set_value(obj, property, value); 4855bffd9de0SPaulo Zanoni 4856bffd9de0SPaulo Zanoni return ret; 4857bffd9de0SPaulo Zanoni } 4858bffd9de0SPaulo Zanoni 48593a5f87c2SThomas Wood /** 48603a5f87c2SThomas Wood * drm_mode_plane_set_obj_prop - set the value of a property 48613a5f87c2SThomas Wood * @plane: drm plane object to set property value for 48623a5f87c2SThomas Wood * @property: property to set 48633a5f87c2SThomas Wood * @value: value the property should be set to 48643a5f87c2SThomas Wood * 48653a5f87c2SThomas Wood * This functions sets a given property on a given plane object. This function 48663a5f87c2SThomas Wood * calls the driver's ->set_property callback and changes the software state of 48673a5f87c2SThomas Wood * the property if the callback succeeds. 48683a5f87c2SThomas Wood * 48693a5f87c2SThomas Wood * Returns: 48703a5f87c2SThomas Wood * Zero on success, error code on failure. 48713a5f87c2SThomas Wood */ 48723a5f87c2SThomas Wood int drm_mode_plane_set_obj_prop(struct drm_plane *plane, 48734d93914aSRob Clark struct drm_property *property, 48744d93914aSRob Clark uint64_t value) 48754d93914aSRob Clark { 48764d93914aSRob Clark int ret = -EINVAL; 48773a5f87c2SThomas Wood struct drm_mode_object *obj = &plane->base; 48784d93914aSRob Clark 48794d93914aSRob Clark if (plane->funcs->set_property) 48804d93914aSRob Clark ret = plane->funcs->set_property(plane, property, value); 48814d93914aSRob Clark if (!ret) 48824d93914aSRob Clark drm_object_property_set_value(obj, property, value); 48834d93914aSRob Clark 48844d93914aSRob Clark return ret; 48854d93914aSRob Clark } 48863a5f87c2SThomas Wood EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); 48874d93914aSRob Clark 4888c8e32cc1SDaniel Vetter /** 48891a498633SDaniel Vetter * drm_mode_obj_get_properties_ioctl - get the current value of a object's property 4890c8e32cc1SDaniel Vetter * @dev: DRM device 4891c8e32cc1SDaniel Vetter * @data: ioctl data 4892c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4893c8e32cc1SDaniel Vetter * 4894c8e32cc1SDaniel Vetter * This function retrieves the current value for an object's property. Compared 4895c8e32cc1SDaniel Vetter * to the connector specific ioctl this one is extended to also work on crtc and 4896c8e32cc1SDaniel Vetter * plane objects. 4897c8e32cc1SDaniel Vetter * 4898c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4899c8e32cc1SDaniel Vetter * 4900c8e32cc1SDaniel Vetter * Returns: 49011a498633SDaniel Vetter * Zero on success, negative errno on failure. 4902c8e32cc1SDaniel Vetter */ 4903c543188aSPaulo Zanoni int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 4904c543188aSPaulo Zanoni struct drm_file *file_priv) 4905c543188aSPaulo Zanoni { 4906c543188aSPaulo Zanoni struct drm_mode_obj_get_properties *arg = data; 4907c543188aSPaulo Zanoni struct drm_mode_object *obj; 4908c543188aSPaulo Zanoni int ret = 0; 4909c543188aSPaulo Zanoni 4910c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4911c543188aSPaulo Zanoni return -EINVAL; 4912c543188aSPaulo Zanoni 491384849903SDaniel Vetter drm_modeset_lock_all(dev); 4914c543188aSPaulo Zanoni 4915c543188aSPaulo Zanoni obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 4916c543188aSPaulo Zanoni if (!obj) { 4917f27657f2SVille Syrjälä ret = -ENOENT; 4918c543188aSPaulo Zanoni goto out; 4919c543188aSPaulo Zanoni } 4920c543188aSPaulo Zanoni if (!obj->properties) { 4921c543188aSPaulo Zanoni ret = -EINVAL; 49221649c33bSDaniel Vetter goto out_unref; 4923c543188aSPaulo Zanoni } 4924c543188aSPaulo Zanoni 492588a48e29SRob Clark ret = get_properties(obj, file_priv->atomic, 492695cbf110SRob Clark (uint32_t __user *)(unsigned long)(arg->props_ptr), 492795cbf110SRob Clark (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), 492895cbf110SRob Clark &arg->count_props); 4929c543188aSPaulo Zanoni 49301649c33bSDaniel Vetter out_unref: 49311649c33bSDaniel Vetter drm_mode_object_unreference(obj); 4932c543188aSPaulo Zanoni out: 493384849903SDaniel Vetter drm_modeset_unlock_all(dev); 4934c543188aSPaulo Zanoni return ret; 4935c543188aSPaulo Zanoni } 4936c543188aSPaulo Zanoni 4937c8e32cc1SDaniel Vetter /** 4938c8e32cc1SDaniel Vetter * drm_mode_obj_set_property_ioctl - set the current value of an object's property 4939c8e32cc1SDaniel Vetter * @dev: DRM device 4940c8e32cc1SDaniel Vetter * @data: ioctl data 4941c8e32cc1SDaniel Vetter * @file_priv: DRM file info 4942c8e32cc1SDaniel Vetter * 4943c8e32cc1SDaniel Vetter * This function sets the current value for an object's property. It also calls 4944c8e32cc1SDaniel Vetter * into a driver's ->set_property callback to update the hardware state. 4945c8e32cc1SDaniel Vetter * Compared to the connector specific ioctl this one is extended to also work on 4946c8e32cc1SDaniel Vetter * crtc and plane objects. 4947c8e32cc1SDaniel Vetter * 4948c8e32cc1SDaniel Vetter * Called by the user via ioctl. 4949c8e32cc1SDaniel Vetter * 4950c8e32cc1SDaniel Vetter * Returns: 49511a498633SDaniel Vetter * Zero on success, negative errno on failure. 4952c8e32cc1SDaniel Vetter */ 4953c543188aSPaulo Zanoni int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 4954c543188aSPaulo Zanoni struct drm_file *file_priv) 4955c543188aSPaulo Zanoni { 4956c543188aSPaulo Zanoni struct drm_mode_obj_set_property *arg = data; 4957c543188aSPaulo Zanoni struct drm_mode_object *arg_obj; 4958c543188aSPaulo Zanoni struct drm_mode_object *prop_obj; 4959c543188aSPaulo Zanoni struct drm_property *property; 49603843e71fSRob Clark int i, ret = -EINVAL; 49613843e71fSRob Clark struct drm_mode_object *ref; 4962c543188aSPaulo Zanoni 4963c543188aSPaulo Zanoni if (!drm_core_check_feature(dev, DRIVER_MODESET)) 4964c543188aSPaulo Zanoni return -EINVAL; 4965c543188aSPaulo Zanoni 496684849903SDaniel Vetter drm_modeset_lock_all(dev); 4967c543188aSPaulo Zanoni 4968c543188aSPaulo Zanoni arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 4969f27657f2SVille Syrjälä if (!arg_obj) { 4970f27657f2SVille Syrjälä ret = -ENOENT; 4971c543188aSPaulo Zanoni goto out; 4972f27657f2SVille Syrjälä } 4973c543188aSPaulo Zanoni if (!arg_obj->properties) 49741649c33bSDaniel Vetter goto out_unref; 4975c543188aSPaulo Zanoni 49767f88a9beSPaulo Zanoni for (i = 0; i < arg_obj->properties->count; i++) 4977b17cd757SRob Clark if (arg_obj->properties->properties[i]->base.id == arg->prop_id) 4978c543188aSPaulo Zanoni break; 4979c543188aSPaulo Zanoni 49807f88a9beSPaulo Zanoni if (i == arg_obj->properties->count) 49811649c33bSDaniel Vetter goto out_unref; 4982c543188aSPaulo Zanoni 4983c543188aSPaulo Zanoni prop_obj = drm_mode_object_find(dev, arg->prop_id, 4984c543188aSPaulo Zanoni DRM_MODE_OBJECT_PROPERTY); 4985f27657f2SVille Syrjälä if (!prop_obj) { 4986f27657f2SVille Syrjälä ret = -ENOENT; 49871649c33bSDaniel Vetter goto out_unref; 4988f27657f2SVille Syrjälä } 4989c543188aSPaulo Zanoni property = obj_to_property(prop_obj); 4990c543188aSPaulo Zanoni 49913843e71fSRob Clark if (!drm_property_change_valid_get(property, arg->value, &ref)) 4992b164d31fSDave Airlie goto out_unref; 4993c543188aSPaulo Zanoni 4994c543188aSPaulo Zanoni switch (arg_obj->type) { 4995c543188aSPaulo Zanoni case DRM_MODE_OBJECT_CONNECTOR: 4996c543188aSPaulo Zanoni ret = drm_mode_connector_set_obj_prop(arg_obj, property, 4997c543188aSPaulo Zanoni arg->value); 4998c543188aSPaulo Zanoni break; 4999bffd9de0SPaulo Zanoni case DRM_MODE_OBJECT_CRTC: 5000bffd9de0SPaulo Zanoni ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); 5001bffd9de0SPaulo Zanoni break; 50024d93914aSRob Clark case DRM_MODE_OBJECT_PLANE: 50033a5f87c2SThomas Wood ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), 50043a5f87c2SThomas Wood property, arg->value); 50054d93914aSRob Clark break; 5006c543188aSPaulo Zanoni } 5007c543188aSPaulo Zanoni 50083843e71fSRob Clark drm_property_change_valid_put(property, ref); 50093843e71fSRob Clark 50101649c33bSDaniel Vetter out_unref: 50111649c33bSDaniel Vetter drm_mode_object_unreference(arg_obj); 5012c543188aSPaulo Zanoni out: 501384849903SDaniel Vetter drm_modeset_unlock_all(dev); 5014c543188aSPaulo Zanoni return ret; 5015c543188aSPaulo Zanoni } 5016c543188aSPaulo Zanoni 5017c8e32cc1SDaniel Vetter /** 5018c8e32cc1SDaniel Vetter * drm_mode_connector_attach_encoder - attach a connector to an encoder 5019c8e32cc1SDaniel Vetter * @connector: connector to attach 5020c8e32cc1SDaniel Vetter * @encoder: encoder to attach @connector to 5021c8e32cc1SDaniel Vetter * 5022c8e32cc1SDaniel Vetter * This function links up a connector to an encoder. Note that the routing 5023c8e32cc1SDaniel Vetter * restrictions between encoders and crtcs are exposed to userspace through the 5024c8e32cc1SDaniel Vetter * possible_clones and possible_crtcs bitmasks. 5025c8e32cc1SDaniel Vetter * 5026c8e32cc1SDaniel Vetter * Returns: 50271a498633SDaniel Vetter * Zero on success, negative errno on failure. 5028c8e32cc1SDaniel Vetter */ 5029f453ba04SDave Airlie int drm_mode_connector_attach_encoder(struct drm_connector *connector, 5030f453ba04SDave Airlie struct drm_encoder *encoder) 5031f453ba04SDave Airlie { 5032f453ba04SDave Airlie int i; 5033f453ba04SDave Airlie 5034eb47fe80SThierry Reding /* 5035eb47fe80SThierry Reding * In the past, drivers have attempted to model the static association 5036eb47fe80SThierry Reding * of connector to encoder in simple connector/encoder devices using a 5037eb47fe80SThierry Reding * direct assignment of connector->encoder = encoder. This connection 5038eb47fe80SThierry Reding * is a logical one and the responsibility of the core, so drivers are 5039eb47fe80SThierry Reding * expected not to mess with this. 5040eb47fe80SThierry Reding * 5041eb47fe80SThierry Reding * Note that the error return should've been enough here, but a large 5042eb47fe80SThierry Reding * majority of drivers ignores the return value, so add in a big WARN 5043eb47fe80SThierry Reding * to get people's attention. 5044eb47fe80SThierry Reding */ 5045eb47fe80SThierry Reding if (WARN_ON(connector->encoder)) 5046eb47fe80SThierry Reding return -EINVAL; 5047eb47fe80SThierry Reding 5048f453ba04SDave Airlie for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 5049f453ba04SDave Airlie if (connector->encoder_ids[i] == 0) { 5050f453ba04SDave Airlie connector->encoder_ids[i] = encoder->base.id; 5051f453ba04SDave Airlie return 0; 5052f453ba04SDave Airlie } 5053f453ba04SDave Airlie } 5054f453ba04SDave Airlie return -ENOMEM; 5055f453ba04SDave Airlie } 5056f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_connector_attach_encoder); 5057f453ba04SDave Airlie 5058c8e32cc1SDaniel Vetter /** 5059c8e32cc1SDaniel Vetter * drm_mode_crtc_set_gamma_size - set the gamma table size 5060c8e32cc1SDaniel Vetter * @crtc: CRTC to set the gamma table size for 5061c8e32cc1SDaniel Vetter * @gamma_size: size of the gamma table 5062c8e32cc1SDaniel Vetter * 5063c8e32cc1SDaniel Vetter * Drivers which support gamma tables should set this to the supported gamma 5064c8e32cc1SDaniel Vetter * table size when initializing the CRTC. Currently the drm core only supports a 5065c8e32cc1SDaniel Vetter * fixed gamma table size. 5066c8e32cc1SDaniel Vetter * 5067c8e32cc1SDaniel Vetter * Returns: 50681a498633SDaniel Vetter * Zero on success, negative errno on failure. 5069c8e32cc1SDaniel Vetter */ 50704cae5b84SSascha Hauer int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 5071f453ba04SDave Airlie int gamma_size) 5072f453ba04SDave Airlie { 5073cf48e292SDaniel Vetter uint16_t *r_base, *g_base, *b_base; 5074cf48e292SDaniel Vetter int i; 5075cf48e292SDaniel Vetter 5076f453ba04SDave Airlie crtc->gamma_size = gamma_size; 5077f453ba04SDave Airlie 5078bd3f0ff9SThierry Reding crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, 5079bd3f0ff9SThierry Reding GFP_KERNEL); 5080f453ba04SDave Airlie if (!crtc->gamma_store) { 5081f453ba04SDave Airlie crtc->gamma_size = 0; 50824cae5b84SSascha Hauer return -ENOMEM; 5083f453ba04SDave Airlie } 5084f453ba04SDave Airlie 5085cf48e292SDaniel Vetter r_base = crtc->gamma_store; 5086cf48e292SDaniel Vetter g_base = r_base + gamma_size; 5087cf48e292SDaniel Vetter b_base = g_base + gamma_size; 5088cf48e292SDaniel Vetter for (i = 0; i < gamma_size; i++) { 5089cf48e292SDaniel Vetter r_base[i] = i << 8; 5090cf48e292SDaniel Vetter g_base[i] = i << 8; 5091cf48e292SDaniel Vetter b_base[i] = i << 8; 5092cf48e292SDaniel Vetter } 5093cf48e292SDaniel Vetter 5094cf48e292SDaniel Vetter 50954cae5b84SSascha Hauer return 0; 5096f453ba04SDave Airlie } 5097f453ba04SDave Airlie EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); 5098f453ba04SDave Airlie 5099c8e32cc1SDaniel Vetter /** 5100c8e32cc1SDaniel Vetter * drm_mode_gamma_set_ioctl - set the gamma table 5101c8e32cc1SDaniel Vetter * @dev: DRM device 5102c8e32cc1SDaniel Vetter * @data: ioctl data 5103c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5104c8e32cc1SDaniel Vetter * 5105c8e32cc1SDaniel Vetter * Set the gamma table of a CRTC to the one passed in by the user. Userspace can 5106c8e32cc1SDaniel Vetter * inquire the required gamma table size through drm_mode_gamma_get_ioctl. 5107c8e32cc1SDaniel Vetter * 5108c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5109c8e32cc1SDaniel Vetter * 5110c8e32cc1SDaniel Vetter * Returns: 51111a498633SDaniel Vetter * Zero on success, negative errno on failure. 5112c8e32cc1SDaniel Vetter */ 5113f453ba04SDave Airlie int drm_mode_gamma_set_ioctl(struct drm_device *dev, 5114f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5115f453ba04SDave Airlie { 5116f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5117f453ba04SDave Airlie struct drm_crtc *crtc; 5118f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5119f453ba04SDave Airlie int size; 5120f453ba04SDave Airlie int ret = 0; 5121f453ba04SDave Airlie 5122fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5123fb3b06c8SDave Airlie return -EINVAL; 5124fb3b06c8SDave Airlie 512584849903SDaniel Vetter drm_modeset_lock_all(dev); 5126a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5127a2b34e22SRob Clark if (!crtc) { 5128f27657f2SVille Syrjälä ret = -ENOENT; 5129f453ba04SDave Airlie goto out; 5130f453ba04SDave Airlie } 5131f453ba04SDave Airlie 5132ebe0f244SLaurent Pinchart if (crtc->funcs->gamma_set == NULL) { 5133ebe0f244SLaurent Pinchart ret = -ENOSYS; 5134ebe0f244SLaurent Pinchart goto out; 5135ebe0f244SLaurent Pinchart } 5136ebe0f244SLaurent Pinchart 5137f453ba04SDave Airlie /* memcpy into gamma store */ 5138f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5139f453ba04SDave Airlie ret = -EINVAL; 5140f453ba04SDave Airlie goto out; 5141f453ba04SDave Airlie } 5142f453ba04SDave Airlie 5143f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5144f453ba04SDave Airlie r_base = crtc->gamma_store; 5145f453ba04SDave Airlie if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { 5146f453ba04SDave Airlie ret = -EFAULT; 5147f453ba04SDave Airlie goto out; 5148f453ba04SDave Airlie } 5149f453ba04SDave Airlie 5150f453ba04SDave Airlie g_base = r_base + size; 5151f453ba04SDave Airlie if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { 5152f453ba04SDave Airlie ret = -EFAULT; 5153f453ba04SDave Airlie goto out; 5154f453ba04SDave Airlie } 5155f453ba04SDave Airlie 5156f453ba04SDave Airlie b_base = g_base + size; 5157f453ba04SDave Airlie if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { 5158f453ba04SDave Airlie ret = -EFAULT; 5159f453ba04SDave Airlie goto out; 5160f453ba04SDave Airlie } 5161f453ba04SDave Airlie 51627ea77283SMaarten Lankhorst ret = crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size); 5163f453ba04SDave Airlie 5164f453ba04SDave Airlie out: 516584849903SDaniel Vetter drm_modeset_unlock_all(dev); 5166f453ba04SDave Airlie return ret; 5167f453ba04SDave Airlie 5168f453ba04SDave Airlie } 5169f453ba04SDave Airlie 5170c8e32cc1SDaniel Vetter /** 5171c8e32cc1SDaniel Vetter * drm_mode_gamma_get_ioctl - get the gamma table 5172c8e32cc1SDaniel Vetter * @dev: DRM device 5173c8e32cc1SDaniel Vetter * @data: ioctl data 5174c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5175c8e32cc1SDaniel Vetter * 5176c8e32cc1SDaniel Vetter * Copy the current gamma table into the storage provided. This also provides 5177c8e32cc1SDaniel Vetter * the gamma table size the driver expects, which can be used to size the 5178c8e32cc1SDaniel Vetter * allocated storage. 5179c8e32cc1SDaniel Vetter * 5180c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5181c8e32cc1SDaniel Vetter * 5182c8e32cc1SDaniel Vetter * Returns: 51831a498633SDaniel Vetter * Zero on success, negative errno on failure. 5184c8e32cc1SDaniel Vetter */ 5185f453ba04SDave Airlie int drm_mode_gamma_get_ioctl(struct drm_device *dev, 5186f453ba04SDave Airlie void *data, struct drm_file *file_priv) 5187f453ba04SDave Airlie { 5188f453ba04SDave Airlie struct drm_mode_crtc_lut *crtc_lut = data; 5189f453ba04SDave Airlie struct drm_crtc *crtc; 5190f453ba04SDave Airlie void *r_base, *g_base, *b_base; 5191f453ba04SDave Airlie int size; 5192f453ba04SDave Airlie int ret = 0; 5193f453ba04SDave Airlie 5194fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 5195fb3b06c8SDave Airlie return -EINVAL; 5196fb3b06c8SDave Airlie 519784849903SDaniel Vetter drm_modeset_lock_all(dev); 5198a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_lut->crtc_id); 5199a2b34e22SRob Clark if (!crtc) { 5200f27657f2SVille Syrjälä ret = -ENOENT; 5201f453ba04SDave Airlie goto out; 5202f453ba04SDave Airlie } 5203f453ba04SDave Airlie 5204f453ba04SDave Airlie /* memcpy into gamma store */ 5205f453ba04SDave Airlie if (crtc_lut->gamma_size != crtc->gamma_size) { 5206f453ba04SDave Airlie ret = -EINVAL; 5207f453ba04SDave Airlie goto out; 5208f453ba04SDave Airlie } 5209f453ba04SDave Airlie 5210f453ba04SDave Airlie size = crtc_lut->gamma_size * (sizeof(uint16_t)); 5211f453ba04SDave Airlie r_base = crtc->gamma_store; 5212f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { 5213f453ba04SDave Airlie ret = -EFAULT; 5214f453ba04SDave Airlie goto out; 5215f453ba04SDave Airlie } 5216f453ba04SDave Airlie 5217f453ba04SDave Airlie g_base = r_base + size; 5218f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { 5219f453ba04SDave Airlie ret = -EFAULT; 5220f453ba04SDave Airlie goto out; 5221f453ba04SDave Airlie } 5222f453ba04SDave Airlie 5223f453ba04SDave Airlie b_base = g_base + size; 5224f453ba04SDave Airlie if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { 5225f453ba04SDave Airlie ret = -EFAULT; 5226f453ba04SDave Airlie goto out; 5227f453ba04SDave Airlie } 5228f453ba04SDave Airlie out: 522984849903SDaniel Vetter drm_modeset_unlock_all(dev); 5230f453ba04SDave Airlie return ret; 5231f453ba04SDave Airlie } 5232d91d8a3fSKristian Høgsberg 5233c8e32cc1SDaniel Vetter /** 5234c8e32cc1SDaniel Vetter * drm_mode_page_flip_ioctl - schedule an asynchronous fb update 5235c8e32cc1SDaniel Vetter * @dev: DRM device 5236c8e32cc1SDaniel Vetter * @data: ioctl data 5237c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5238c8e32cc1SDaniel Vetter * 5239c8e32cc1SDaniel Vetter * This schedules an asynchronous update on a given CRTC, called page flip. 5240c8e32cc1SDaniel Vetter * Optionally a drm event is generated to signal the completion of the event. 5241c8e32cc1SDaniel Vetter * Generic drivers cannot assume that a pageflip with changed framebuffer 5242c8e32cc1SDaniel Vetter * properties (including driver specific metadata like tiling layout) will work, 5243c8e32cc1SDaniel Vetter * but some drivers support e.g. pixel format changes through the pageflip 5244c8e32cc1SDaniel Vetter * ioctl. 5245c8e32cc1SDaniel Vetter * 5246c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5247c8e32cc1SDaniel Vetter * 5248c8e32cc1SDaniel Vetter * Returns: 52491a498633SDaniel Vetter * Zero on success, negative errno on failure. 5250c8e32cc1SDaniel Vetter */ 5251d91d8a3fSKristian Høgsberg int drm_mode_page_flip_ioctl(struct drm_device *dev, 5252d91d8a3fSKristian Høgsberg void *data, struct drm_file *file_priv) 5253d91d8a3fSKristian Høgsberg { 5254d91d8a3fSKristian Høgsberg struct drm_mode_crtc_page_flip *page_flip = data; 5255d91d8a3fSKristian Høgsberg struct drm_crtc *crtc; 52563d30a59bSDaniel Vetter struct drm_framebuffer *fb = NULL; 5257d91d8a3fSKristian Høgsberg struct drm_pending_vblank_event *e = NULL; 5258d91d8a3fSKristian Høgsberg int ret = -EINVAL; 5259d91d8a3fSKristian Høgsberg 5260d91d8a3fSKristian Høgsberg if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || 5261d91d8a3fSKristian Høgsberg page_flip->reserved != 0) 5262d91d8a3fSKristian Høgsberg return -EINVAL; 5263d91d8a3fSKristian Høgsberg 526462f2104fSKeith Packard if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) 526562f2104fSKeith Packard return -EINVAL; 526662f2104fSKeith Packard 5267a2b34e22SRob Clark crtc = drm_crtc_find(dev, page_flip->crtc_id); 5268a2b34e22SRob Clark if (!crtc) 5269f27657f2SVille Syrjälä return -ENOENT; 5270d91d8a3fSKristian Høgsberg 52714d02e2deSDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 5272f4510a27SMatt Roper if (crtc->primary->fb == NULL) { 527390c1efddSChris Wilson /* The framebuffer is currently unbound, presumably 527490c1efddSChris Wilson * due to a hotplug event, that userspace has not 527590c1efddSChris Wilson * yet discovered. 527690c1efddSChris Wilson */ 527790c1efddSChris Wilson ret = -EBUSY; 527890c1efddSChris Wilson goto out; 527990c1efddSChris Wilson } 528090c1efddSChris Wilson 5281d91d8a3fSKristian Høgsberg if (crtc->funcs->page_flip == NULL) 5282d91d8a3fSKristian Høgsberg goto out; 5283d91d8a3fSKristian Høgsberg 5284786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, page_flip->fb_id); 528537c4e705SVille Syrjälä if (!fb) { 528637c4e705SVille Syrjälä ret = -ENOENT; 5287d91d8a3fSKristian Høgsberg goto out; 528837c4e705SVille Syrjälä } 5289d91d8a3fSKristian Høgsberg 52902afa701dSVille Syrjälä if (crtc->state) { 52912afa701dSVille Syrjälä const struct drm_plane_state *state = crtc->primary->state; 52922afa701dSVille Syrjälä 52932afa701dSVille Syrjälä ret = check_src_coords(state->src_x, state->src_y, 52942afa701dSVille Syrjälä state->src_w, state->src_h, fb); 52952afa701dSVille Syrjälä } else { 5296c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); 52972afa701dSVille Syrjälä } 5298c11e9283SDamien Lespiau if (ret) 52995f61bb42SVille Syrjälä goto out; 53005f61bb42SVille Syrjälä 5301f4510a27SMatt Roper if (crtc->primary->fb->pixel_format != fb->pixel_format) { 5302909d9cdaSLaurent Pinchart DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); 5303909d9cdaSLaurent Pinchart ret = -EINVAL; 5304909d9cdaSLaurent Pinchart goto out; 5305909d9cdaSLaurent Pinchart } 5306909d9cdaSLaurent Pinchart 5307d91d8a3fSKristian Høgsberg if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 53082dd500f1SDaniel Vetter e = kzalloc(sizeof *e, GFP_KERNEL); 53092dd500f1SDaniel Vetter if (!e) { 5310d91d8a3fSKristian Høgsberg ret = -ENOMEM; 5311d91d8a3fSKristian Høgsberg goto out; 5312d91d8a3fSKristian Høgsberg } 53137bd4d7beSJesse Barnes e->event.base.type = DRM_EVENT_FLIP_COMPLETE; 5314f76511b9SThierry Reding e->event.base.length = sizeof(e->event); 5315d91d8a3fSKristian Høgsberg e->event.user_data = page_flip->user_data; 53162dd500f1SDaniel Vetter ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base); 53172dd500f1SDaniel Vetter if (ret) { 53182dd500f1SDaniel Vetter kfree(e); 53192dd500f1SDaniel Vetter goto out; 53202dd500f1SDaniel Vetter } 5321d91d8a3fSKristian Høgsberg } 5322d91d8a3fSKristian Høgsberg 53233d30a59bSDaniel Vetter crtc->primary->old_fb = crtc->primary->fb; 5324ed8d1975SKeith Packard ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); 5325d91d8a3fSKristian Høgsberg if (ret) { 53262dd500f1SDaniel Vetter if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) 53272dd500f1SDaniel Vetter drm_event_cancel_free(dev, &e->base); 5328b0d12325SDaniel Vetter /* Keep the old fb, don't unref it. */ 53293d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5330b0d12325SDaniel Vetter } else { 53313cb43cc0SDaniel Vetter crtc->primary->fb = fb; 5332b0d12325SDaniel Vetter /* Unref only the old framebuffer. */ 5333b0d12325SDaniel Vetter fb = NULL; 5334aef6a7eeSJoonyoung Shim } 5335d91d8a3fSKristian Høgsberg 5336d91d8a3fSKristian Høgsberg out: 5337b0d12325SDaniel Vetter if (fb) 5338b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 53393d30a59bSDaniel Vetter if (crtc->primary->old_fb) 53403d30a59bSDaniel Vetter drm_framebuffer_unreference(crtc->primary->old_fb); 53413d30a59bSDaniel Vetter crtc->primary->old_fb = NULL; 5342d059f652SDaniel Vetter drm_modeset_unlock_crtc(crtc); 5343b4d5e7d1SDaniel Vetter 5344d91d8a3fSKristian Høgsberg return ret; 5345d91d8a3fSKristian Høgsberg } 5346eb033556SChris Wilson 5347c8e32cc1SDaniel Vetter /** 5348c8e32cc1SDaniel Vetter * drm_mode_config_reset - call ->reset callbacks 5349c8e32cc1SDaniel Vetter * @dev: drm device 5350c8e32cc1SDaniel Vetter * 5351c8e32cc1SDaniel Vetter * This functions calls all the crtc's, encoder's and connector's ->reset 5352c8e32cc1SDaniel Vetter * callback. Drivers can use this in e.g. their driver load or resume code to 5353c8e32cc1SDaniel Vetter * reset hardware and software state. 5354c8e32cc1SDaniel Vetter */ 5355eb033556SChris Wilson void drm_mode_config_reset(struct drm_device *dev) 5356eb033556SChris Wilson { 5357eb033556SChris Wilson struct drm_crtc *crtc; 53582a0d7cfdSDaniel Vetter struct drm_plane *plane; 5359eb033556SChris Wilson struct drm_encoder *encoder; 5360eb033556SChris Wilson struct drm_connector *connector; 5361eb033556SChris Wilson 5362e4f62546SDaniel Vetter drm_for_each_plane(plane, dev) 53632a0d7cfdSDaniel Vetter if (plane->funcs->reset) 53642a0d7cfdSDaniel Vetter plane->funcs->reset(plane); 53652a0d7cfdSDaniel Vetter 5366e4f62546SDaniel Vetter drm_for_each_crtc(crtc, dev) 5367eb033556SChris Wilson if (crtc->funcs->reset) 5368eb033556SChris Wilson crtc->funcs->reset(crtc); 5369eb033556SChris Wilson 5370e4f62546SDaniel Vetter drm_for_each_encoder(encoder, dev) 5371eb033556SChris Wilson if (encoder->funcs->reset) 5372eb033556SChris Wilson encoder->funcs->reset(encoder); 5373eb033556SChris Wilson 5374f8c2ba31SDaniel Vetter mutex_lock(&dev->mode_config.mutex); 53754eebf60bSDave Airlie drm_for_each_connector(connector, dev) 5376eb033556SChris Wilson if (connector->funcs->reset) 5377eb033556SChris Wilson connector->funcs->reset(connector); 5378f8c2ba31SDaniel Vetter mutex_unlock(&dev->mode_config.mutex); 53795e2cb2f6SDaniel Vetter } 5380eb033556SChris Wilson EXPORT_SYMBOL(drm_mode_config_reset); 5381ff72145bSDave Airlie 5382c8e32cc1SDaniel Vetter /** 5383c8e32cc1SDaniel Vetter * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer 5384c8e32cc1SDaniel Vetter * @dev: DRM device 5385c8e32cc1SDaniel Vetter * @data: ioctl data 5386c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5387c8e32cc1SDaniel Vetter * 5388c8e32cc1SDaniel Vetter * This creates a new dumb buffer in the driver's backing storage manager (GEM, 5389c8e32cc1SDaniel Vetter * TTM or something else entirely) and returns the resulting buffer handle. This 5390c8e32cc1SDaniel Vetter * handle can then be wrapped up into a framebuffer modeset object. 5391c8e32cc1SDaniel Vetter * 5392c8e32cc1SDaniel Vetter * Note that userspace is not allowed to use such objects for render 5393c8e32cc1SDaniel Vetter * acceleration - drivers must create their own private ioctls for such a use 5394c8e32cc1SDaniel Vetter * case. 5395c8e32cc1SDaniel Vetter * 5396c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5397c8e32cc1SDaniel Vetter * 5398c8e32cc1SDaniel Vetter * Returns: 53991a498633SDaniel Vetter * Zero on success, negative errno on failure. 5400c8e32cc1SDaniel Vetter */ 5401ff72145bSDave Airlie int drm_mode_create_dumb_ioctl(struct drm_device *dev, 5402ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5403ff72145bSDave Airlie { 5404ff72145bSDave Airlie struct drm_mode_create_dumb *args = data; 5405b28cd41fSDavid Herrmann u32 cpp, stride, size; 5406ff72145bSDave Airlie 5407ff72145bSDave Airlie if (!dev->driver->dumb_create) 5408ff72145bSDave Airlie return -ENOSYS; 5409b28cd41fSDavid Herrmann if (!args->width || !args->height || !args->bpp) 5410b28cd41fSDavid Herrmann return -EINVAL; 5411b28cd41fSDavid Herrmann 5412b28cd41fSDavid Herrmann /* overflow checks for 32bit size calculations */ 541300e72089SDavid Herrmann /* NOTE: DIV_ROUND_UP() can overflow */ 5414b28cd41fSDavid Herrmann cpp = DIV_ROUND_UP(args->bpp, 8); 541500e72089SDavid Herrmann if (!cpp || cpp > 0xffffffffU / args->width) 5416b28cd41fSDavid Herrmann return -EINVAL; 5417b28cd41fSDavid Herrmann stride = cpp * args->width; 5418b28cd41fSDavid Herrmann if (args->height > 0xffffffffU / stride) 5419b28cd41fSDavid Herrmann return -EINVAL; 5420b28cd41fSDavid Herrmann 5421b28cd41fSDavid Herrmann /* test for wrap-around */ 5422b28cd41fSDavid Herrmann size = args->height * stride; 5423b28cd41fSDavid Herrmann if (PAGE_ALIGN(size) == 0) 5424b28cd41fSDavid Herrmann return -EINVAL; 5425b28cd41fSDavid Herrmann 5426f6085952SThierry Reding /* 5427f6085952SThierry Reding * handle, pitch and size are output parameters. Zero them out to 5428f6085952SThierry Reding * prevent drivers from accidentally using uninitialized data. Since 5429f6085952SThierry Reding * not all existing userspace is clearing these fields properly we 5430f6085952SThierry Reding * cannot reject IOCTL with garbage in them. 5431f6085952SThierry Reding */ 5432f6085952SThierry Reding args->handle = 0; 5433f6085952SThierry Reding args->pitch = 0; 5434f6085952SThierry Reding args->size = 0; 5435f6085952SThierry Reding 5436ff72145bSDave Airlie return dev->driver->dumb_create(file_priv, dev, args); 5437ff72145bSDave Airlie } 5438ff72145bSDave Airlie 5439c8e32cc1SDaniel Vetter /** 5440c8e32cc1SDaniel Vetter * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer 5441c8e32cc1SDaniel Vetter * @dev: DRM device 5442c8e32cc1SDaniel Vetter * @data: ioctl data 5443c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5444c8e32cc1SDaniel Vetter * 5445c8e32cc1SDaniel Vetter * Allocate an offset in the drm device node's address space to be able to 5446c8e32cc1SDaniel Vetter * memory map a dumb buffer. 5447c8e32cc1SDaniel Vetter * 5448c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5449c8e32cc1SDaniel Vetter * 5450c8e32cc1SDaniel Vetter * Returns: 54511a498633SDaniel Vetter * Zero on success, negative errno on failure. 5452c8e32cc1SDaniel Vetter */ 5453ff72145bSDave Airlie int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 5454ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5455ff72145bSDave Airlie { 5456ff72145bSDave Airlie struct drm_mode_map_dumb *args = data; 5457ff72145bSDave Airlie 5458ff72145bSDave Airlie /* call driver ioctl to get mmap offset */ 5459ff72145bSDave Airlie if (!dev->driver->dumb_map_offset) 5460ff72145bSDave Airlie return -ENOSYS; 5461ff72145bSDave Airlie 5462ff72145bSDave Airlie return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); 5463ff72145bSDave Airlie } 5464ff72145bSDave Airlie 5465c8e32cc1SDaniel Vetter /** 5466c8e32cc1SDaniel Vetter * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer 5467c8e32cc1SDaniel Vetter * @dev: DRM device 5468c8e32cc1SDaniel Vetter * @data: ioctl data 5469c8e32cc1SDaniel Vetter * @file_priv: DRM file info 5470c8e32cc1SDaniel Vetter * 5471c8e32cc1SDaniel Vetter * This destroys the userspace handle for the given dumb backing storage buffer. 5472c8e32cc1SDaniel Vetter * Since buffer objects must be reference counted in the kernel a buffer object 5473c8e32cc1SDaniel Vetter * won't be immediately freed if a framebuffer modeset object still uses it. 5474c8e32cc1SDaniel Vetter * 5475c8e32cc1SDaniel Vetter * Called by the user via ioctl. 5476c8e32cc1SDaniel Vetter * 5477c8e32cc1SDaniel Vetter * Returns: 54781a498633SDaniel Vetter * Zero on success, negative errno on failure. 5479c8e32cc1SDaniel Vetter */ 5480ff72145bSDave Airlie int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 5481ff72145bSDave Airlie void *data, struct drm_file *file_priv) 5482ff72145bSDave Airlie { 5483ff72145bSDave Airlie struct drm_mode_destroy_dumb *args = data; 5484ff72145bSDave Airlie 5485ff72145bSDave Airlie if (!dev->driver->dumb_destroy) 5486ff72145bSDave Airlie return -ENOSYS; 5487ff72145bSDave Airlie 5488ff72145bSDave Airlie return dev->driver->dumb_destroy(file_priv, dev, args->handle); 5489ff72145bSDave Airlie } 5490248dbc23SDave Airlie 5491c8e32cc1SDaniel Vetter /** 54923c9855f6SVille Syrjälä * drm_rotation_simplify() - Try to simplify the rotation 54933c9855f6SVille Syrjälä * @rotation: Rotation to be simplified 54943c9855f6SVille Syrjälä * @supported_rotations: Supported rotations 54953c9855f6SVille Syrjälä * 54963c9855f6SVille Syrjälä * Attempt to simplify the rotation to a form that is supported. 54973c9855f6SVille Syrjälä * Eg. if the hardware supports everything except DRM_REFLECT_X 54983c9855f6SVille Syrjälä * one could call this function like this: 54993c9855f6SVille Syrjälä * 55003c9855f6SVille Syrjälä * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | 55013c9855f6SVille Syrjälä * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | 55023c9855f6SVille Syrjälä * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); 55033c9855f6SVille Syrjälä * 55043c9855f6SVille Syrjälä * to eliminate the DRM_ROTATE_X flag. Depending on what kind of 55053c9855f6SVille Syrjälä * transforms the hardware supports, this function may not 55063c9855f6SVille Syrjälä * be able to produce a supported transform, so the caller should 55073c9855f6SVille Syrjälä * check the result afterwards. 55083c9855f6SVille Syrjälä */ 55093c9855f6SVille Syrjälä unsigned int drm_rotation_simplify(unsigned int rotation, 55103c9855f6SVille Syrjälä unsigned int supported_rotations) 55113c9855f6SVille Syrjälä { 55123c9855f6SVille Syrjälä if (rotation & ~supported_rotations) { 55133c9855f6SVille Syrjälä rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); 551414152c8dSJoonas Lahtinen rotation = (rotation & DRM_REFLECT_MASK) | 551514152c8dSJoonas Lahtinen BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); 55163c9855f6SVille Syrjälä } 55173c9855f6SVille Syrjälä 55183c9855f6SVille Syrjälä return rotation; 55193c9855f6SVille Syrjälä } 55203c9855f6SVille Syrjälä EXPORT_SYMBOL(drm_rotation_simplify); 55213c9855f6SVille Syrjälä 55223c9855f6SVille Syrjälä /** 552387d24fc3SLaurent Pinchart * drm_mode_config_init - initialize DRM mode_configuration structure 552487d24fc3SLaurent Pinchart * @dev: DRM device 552587d24fc3SLaurent Pinchart * 552687d24fc3SLaurent Pinchart * Initialize @dev's mode_config structure, used for tracking the graphics 552787d24fc3SLaurent Pinchart * configuration of @dev. 552887d24fc3SLaurent Pinchart * 552987d24fc3SLaurent Pinchart * Since this initializes the modeset locks, no locking is possible. Which is no 553087d24fc3SLaurent Pinchart * problem, since this should happen single threaded at init time. It is the 553187d24fc3SLaurent Pinchart * driver's problem to ensure this guarantee. 553287d24fc3SLaurent Pinchart * 553387d24fc3SLaurent Pinchart */ 553487d24fc3SLaurent Pinchart void drm_mode_config_init(struct drm_device *dev) 553587d24fc3SLaurent Pinchart { 553687d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.mutex); 553751fd371bSRob Clark drm_modeset_lock_init(&dev->mode_config.connection_mutex); 553887d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.idr_mutex); 553987d24fc3SLaurent Pinchart mutex_init(&dev->mode_config.fb_lock); 55408fb6e7a5SDaniel Stone mutex_init(&dev->mode_config.blob_lock); 554187d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.fb_list); 554287d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.crtc_list); 554387d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.connector_list); 554487d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.encoder_list); 554587d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_list); 554687d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.property_blob_list); 554787d24fc3SLaurent Pinchart INIT_LIST_HEAD(&dev->mode_config.plane_list); 554887d24fc3SLaurent Pinchart idr_init(&dev->mode_config.crtc_idr); 5549138f9ebbSDave Airlie idr_init(&dev->mode_config.tile_idr); 55505fff80bbSMaarten Lankhorst ida_init(&dev->mode_config.connector_ida); 555187d24fc3SLaurent Pinchart 555287d24fc3SLaurent Pinchart drm_modeset_lock_all(dev); 55536b4959f4SRob Clark drm_mode_create_standard_properties(dev); 555487d24fc3SLaurent Pinchart drm_modeset_unlock_all(dev); 555587d24fc3SLaurent Pinchart 555687d24fc3SLaurent Pinchart /* Just to be sure */ 555787d24fc3SLaurent Pinchart dev->mode_config.num_fb = 0; 555887d24fc3SLaurent Pinchart dev->mode_config.num_connector = 0; 555987d24fc3SLaurent Pinchart dev->mode_config.num_crtc = 0; 556087d24fc3SLaurent Pinchart dev->mode_config.num_encoder = 0; 5561e27dde3eSMatt Roper dev->mode_config.num_overlay_plane = 0; 5562e27dde3eSMatt Roper dev->mode_config.num_total_plane = 0; 556387d24fc3SLaurent Pinchart } 556487d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_init); 556587d24fc3SLaurent Pinchart 556687d24fc3SLaurent Pinchart /** 556787d24fc3SLaurent Pinchart * drm_mode_config_cleanup - free up DRM mode_config info 556887d24fc3SLaurent Pinchart * @dev: DRM device 556987d24fc3SLaurent Pinchart * 557087d24fc3SLaurent Pinchart * Free up all the connectors and CRTCs associated with this DRM device, then 557187d24fc3SLaurent Pinchart * free up the framebuffers and associated buffer objects. 557287d24fc3SLaurent Pinchart * 557387d24fc3SLaurent Pinchart * Note that since this /should/ happen single-threaded at driver/device 557487d24fc3SLaurent Pinchart * teardown time, no locking is required. It's the driver's job to ensure that 557587d24fc3SLaurent Pinchart * this guarantee actually holds true. 557687d24fc3SLaurent Pinchart * 557787d24fc3SLaurent Pinchart * FIXME: cleanup any dangling user buffer objects too 557887d24fc3SLaurent Pinchart */ 557987d24fc3SLaurent Pinchart void drm_mode_config_cleanup(struct drm_device *dev) 558087d24fc3SLaurent Pinchart { 558187d24fc3SLaurent Pinchart struct drm_connector *connector, *ot; 558287d24fc3SLaurent Pinchart struct drm_crtc *crtc, *ct; 558387d24fc3SLaurent Pinchart struct drm_encoder *encoder, *enct; 558487d24fc3SLaurent Pinchart struct drm_framebuffer *fb, *fbt; 558587d24fc3SLaurent Pinchart struct drm_property *property, *pt; 558687d24fc3SLaurent Pinchart struct drm_property_blob *blob, *bt; 558787d24fc3SLaurent Pinchart struct drm_plane *plane, *plt; 558887d24fc3SLaurent Pinchart 558987d24fc3SLaurent Pinchart list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, 559087d24fc3SLaurent Pinchart head) { 559187d24fc3SLaurent Pinchart encoder->funcs->destroy(encoder); 559287d24fc3SLaurent Pinchart } 559387d24fc3SLaurent Pinchart 559487d24fc3SLaurent Pinchart list_for_each_entry_safe(connector, ot, 559587d24fc3SLaurent Pinchart &dev->mode_config.connector_list, head) { 559687d24fc3SLaurent Pinchart connector->funcs->destroy(connector); 559787d24fc3SLaurent Pinchart } 559887d24fc3SLaurent Pinchart 559987d24fc3SLaurent Pinchart list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, 560087d24fc3SLaurent Pinchart head) { 560187d24fc3SLaurent Pinchart drm_property_destroy(dev, property); 560287d24fc3SLaurent Pinchart } 560387d24fc3SLaurent Pinchart 5604f35034f8SMaarten Lankhorst list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, 5605f35034f8SMaarten Lankhorst head) { 5606f35034f8SMaarten Lankhorst plane->funcs->destroy(plane); 5607f35034f8SMaarten Lankhorst } 5608f35034f8SMaarten Lankhorst 5609f35034f8SMaarten Lankhorst list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { 5610f35034f8SMaarten Lankhorst crtc->funcs->destroy(crtc); 5611f35034f8SMaarten Lankhorst } 5612f35034f8SMaarten Lankhorst 561387d24fc3SLaurent Pinchart list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, 5614e2f5d2eaSDaniel Stone head_global) { 56156bcacf51SDaniel Stone drm_property_unreference_blob(blob); 561687d24fc3SLaurent Pinchart } 561787d24fc3SLaurent Pinchart 561887d24fc3SLaurent Pinchart /* 561987d24fc3SLaurent Pinchart * Single-threaded teardown context, so it's not required to grab the 562087d24fc3SLaurent Pinchart * fb_lock to protect against concurrent fb_list access. Contrary, it 562187d24fc3SLaurent Pinchart * would actually deadlock with the drm_framebuffer_cleanup function. 562287d24fc3SLaurent Pinchart * 562387d24fc3SLaurent Pinchart * Also, if there are any framebuffers left, that's a driver leak now, 562487d24fc3SLaurent Pinchart * so politely WARN about this. 562587d24fc3SLaurent Pinchart */ 562687d24fc3SLaurent Pinchart WARN_ON(!list_empty(&dev->mode_config.fb_list)); 562787d24fc3SLaurent Pinchart list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { 5628d0f37cf6SDave Airlie drm_framebuffer_free(&fb->base.refcount); 562987d24fc3SLaurent Pinchart } 563087d24fc3SLaurent Pinchart 56315fff80bbSMaarten Lankhorst ida_destroy(&dev->mode_config.connector_ida); 5632138f9ebbSDave Airlie idr_destroy(&dev->mode_config.tile_idr); 563387d24fc3SLaurent Pinchart idr_destroy(&dev->mode_config.crtc_idr); 563451fd371bSRob Clark drm_modeset_lock_fini(&dev->mode_config.connection_mutex); 563587d24fc3SLaurent Pinchart } 563687d24fc3SLaurent Pinchart EXPORT_SYMBOL(drm_mode_config_cleanup); 5637c1df5f3cSVille Syrjälä 5638c1df5f3cSVille Syrjälä struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, 5639c1df5f3cSVille Syrjälä unsigned int supported_rotations) 5640c1df5f3cSVille Syrjälä { 5641c1df5f3cSVille Syrjälä static const struct drm_prop_enum_list props[] = { 5642c1df5f3cSVille Syrjälä { DRM_ROTATE_0, "rotate-0" }, 5643c1df5f3cSVille Syrjälä { DRM_ROTATE_90, "rotate-90" }, 5644c1df5f3cSVille Syrjälä { DRM_ROTATE_180, "rotate-180" }, 5645c1df5f3cSVille Syrjälä { DRM_ROTATE_270, "rotate-270" }, 5646c1df5f3cSVille Syrjälä { DRM_REFLECT_X, "reflect-x" }, 5647c1df5f3cSVille Syrjälä { DRM_REFLECT_Y, "reflect-y" }, 5648c1df5f3cSVille Syrjälä }; 5649c1df5f3cSVille Syrjälä 5650c1df5f3cSVille Syrjälä return drm_property_create_bitmask(dev, 0, "rotation", 5651c1df5f3cSVille Syrjälä props, ARRAY_SIZE(props), 5652c1df5f3cSVille Syrjälä supported_rotations); 5653c1df5f3cSVille Syrjälä } 5654c1df5f3cSVille Syrjälä EXPORT_SYMBOL(drm_mode_create_rotation_property); 5655138f9ebbSDave Airlie 5656138f9ebbSDave Airlie /** 5657138f9ebbSDave Airlie * DOC: Tile group 5658138f9ebbSDave Airlie * 5659138f9ebbSDave Airlie * Tile groups are used to represent tiled monitors with a unique 5660138f9ebbSDave Airlie * integer identifier. Tiled monitors using DisplayID v1.3 have 5661138f9ebbSDave Airlie * a unique 8-byte handle, we store this in a tile group, so we 5662138f9ebbSDave Airlie * have a common identifier for all tiles in a monitor group. 5663138f9ebbSDave Airlie */ 5664138f9ebbSDave Airlie static void drm_tile_group_free(struct kref *kref) 5665138f9ebbSDave Airlie { 5666138f9ebbSDave Airlie struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); 5667138f9ebbSDave Airlie struct drm_device *dev = tg->dev; 5668138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5669138f9ebbSDave Airlie idr_remove(&dev->mode_config.tile_idr, tg->id); 5670138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5671138f9ebbSDave Airlie kfree(tg); 5672138f9ebbSDave Airlie } 5673138f9ebbSDave Airlie 5674138f9ebbSDave Airlie /** 5675138f9ebbSDave Airlie * drm_mode_put_tile_group - drop a reference to a tile group. 5676138f9ebbSDave Airlie * @dev: DRM device 5677138f9ebbSDave Airlie * @tg: tile group to drop reference to. 5678138f9ebbSDave Airlie * 5679138f9ebbSDave Airlie * drop reference to tile group and free if 0. 5680138f9ebbSDave Airlie */ 5681138f9ebbSDave Airlie void drm_mode_put_tile_group(struct drm_device *dev, 5682138f9ebbSDave Airlie struct drm_tile_group *tg) 5683138f9ebbSDave Airlie { 5684138f9ebbSDave Airlie kref_put(&tg->refcount, drm_tile_group_free); 5685138f9ebbSDave Airlie } 5686138f9ebbSDave Airlie 5687138f9ebbSDave Airlie /** 5688138f9ebbSDave Airlie * drm_mode_get_tile_group - get a reference to an existing tile group 5689138f9ebbSDave Airlie * @dev: DRM device 5690138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 5691138f9ebbSDave Airlie * 5692138f9ebbSDave Airlie * Use the unique bytes to get a reference to an existing tile group. 5693138f9ebbSDave Airlie * 5694138f9ebbSDave Airlie * RETURNS: 5695138f9ebbSDave Airlie * tile group or NULL if not found. 5696138f9ebbSDave Airlie */ 5697138f9ebbSDave Airlie struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, 5698138f9ebbSDave Airlie char topology[8]) 5699138f9ebbSDave Airlie { 5700138f9ebbSDave Airlie struct drm_tile_group *tg; 5701138f9ebbSDave Airlie int id; 5702138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5703138f9ebbSDave Airlie idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { 5704138f9ebbSDave Airlie if (!memcmp(tg->group_data, topology, 8)) { 5705138f9ebbSDave Airlie if (!kref_get_unless_zero(&tg->refcount)) 5706138f9ebbSDave Airlie tg = NULL; 5707138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5708138f9ebbSDave Airlie return tg; 5709138f9ebbSDave Airlie } 5710138f9ebbSDave Airlie } 5711138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5712138f9ebbSDave Airlie return NULL; 5713138f9ebbSDave Airlie } 571481ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_get_tile_group); 5715138f9ebbSDave Airlie 5716138f9ebbSDave Airlie /** 5717138f9ebbSDave Airlie * drm_mode_create_tile_group - create a tile group from a displayid description 5718138f9ebbSDave Airlie * @dev: DRM device 5719138f9ebbSDave Airlie * @topology: 8-bytes unique per monitor. 5720138f9ebbSDave Airlie * 5721138f9ebbSDave Airlie * Create a tile group for the unique monitor, and get a unique 5722138f9ebbSDave Airlie * identifier for the tile group. 5723138f9ebbSDave Airlie * 5724138f9ebbSDave Airlie * RETURNS: 5725138f9ebbSDave Airlie * new tile group or error. 5726138f9ebbSDave Airlie */ 5727138f9ebbSDave Airlie struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, 5728138f9ebbSDave Airlie char topology[8]) 5729138f9ebbSDave Airlie { 5730138f9ebbSDave Airlie struct drm_tile_group *tg; 5731138f9ebbSDave Airlie int ret; 5732138f9ebbSDave Airlie 5733138f9ebbSDave Airlie tg = kzalloc(sizeof(*tg), GFP_KERNEL); 5734138f9ebbSDave Airlie if (!tg) 5735138f9ebbSDave Airlie return ERR_PTR(-ENOMEM); 5736138f9ebbSDave Airlie 5737138f9ebbSDave Airlie kref_init(&tg->refcount); 5738138f9ebbSDave Airlie memcpy(tg->group_data, topology, 8); 5739138f9ebbSDave Airlie tg->dev = dev; 5740138f9ebbSDave Airlie 5741138f9ebbSDave Airlie mutex_lock(&dev->mode_config.idr_mutex); 5742138f9ebbSDave Airlie ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); 5743138f9ebbSDave Airlie if (ret >= 0) { 5744138f9ebbSDave Airlie tg->id = ret; 5745138f9ebbSDave Airlie } else { 5746138f9ebbSDave Airlie kfree(tg); 5747138f9ebbSDave Airlie tg = ERR_PTR(ret); 5748138f9ebbSDave Airlie } 5749138f9ebbSDave Airlie 5750138f9ebbSDave Airlie mutex_unlock(&dev->mode_config.idr_mutex); 5751138f9ebbSDave Airlie return tg; 5752138f9ebbSDave Airlie } 575381ddd1bcSRob Clark EXPORT_SYMBOL(drm_mode_create_tile_group); 5754f8ed34acSJyri Sarha 5755f8ed34acSJyri Sarha /** 5756f8ed34acSJyri Sarha * drm_crtc_enable_color_mgmt - enable color management properties 5757f8ed34acSJyri Sarha * @crtc: DRM CRTC 5758f8ed34acSJyri Sarha * @degamma_lut_size: the size of the degamma lut (before CSC) 5759f8ed34acSJyri Sarha * @has_ctm: whether to attach ctm_property for CSC matrix 5760f8ed34acSJyri Sarha * @gamma_lut_size: the size of the gamma lut (after CSC) 5761f8ed34acSJyri Sarha * 5762f8ed34acSJyri Sarha * This function lets the driver enable the color correction 5763f8ed34acSJyri Sarha * properties on a CRTC. This includes 3 degamma, csc and gamma 5764f8ed34acSJyri Sarha * properties that userspace can set and 2 size properties to inform 5765f8ed34acSJyri Sarha * the userspace of the lut sizes. Each of the properties are 5766f8ed34acSJyri Sarha * optional. The gamma and degamma properties are only attached if 5767f8ed34acSJyri Sarha * their size is not 0 and ctm_property is only attached if has_ctm is 5768f8ed34acSJyri Sarha * true. 5769f8ed34acSJyri Sarha */ 5770f8ed34acSJyri Sarha void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, 5771f8ed34acSJyri Sarha uint degamma_lut_size, 5772f8ed34acSJyri Sarha bool has_ctm, 5773f8ed34acSJyri Sarha uint gamma_lut_size) 5774f8ed34acSJyri Sarha { 5775f8ed34acSJyri Sarha struct drm_device *dev = crtc->dev; 5776f8ed34acSJyri Sarha struct drm_mode_config *config = &dev->mode_config; 5777f8ed34acSJyri Sarha 5778f8ed34acSJyri Sarha if (degamma_lut_size) { 5779f8ed34acSJyri Sarha drm_object_attach_property(&crtc->base, 5780f8ed34acSJyri Sarha config->degamma_lut_property, 0); 5781f8ed34acSJyri Sarha drm_object_attach_property(&crtc->base, 5782f8ed34acSJyri Sarha config->degamma_lut_size_property, 5783f8ed34acSJyri Sarha degamma_lut_size); 5784f8ed34acSJyri Sarha } 5785f8ed34acSJyri Sarha 5786f8ed34acSJyri Sarha if (has_ctm) 5787f8ed34acSJyri Sarha drm_object_attach_property(&crtc->base, 5788f8ed34acSJyri Sarha config->ctm_property, 0); 5789f8ed34acSJyri Sarha 5790f8ed34acSJyri Sarha if (gamma_lut_size) { 5791f8ed34acSJyri Sarha drm_object_attach_property(&crtc->base, 5792f8ed34acSJyri Sarha config->gamma_lut_property, 0); 5793f8ed34acSJyri Sarha drm_object_attach_property(&crtc->base, 5794f8ed34acSJyri Sarha config->gamma_lut_size_property, 5795f8ed34acSJyri Sarha gamma_lut_size); 5796f8ed34acSJyri Sarha } 5797f8ed34acSJyri Sarha } 5798f8ed34acSJyri Sarha EXPORT_SYMBOL(drm_crtc_enable_color_mgmt); 5799