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> 366d6003c4SGustavo Padovan #include <linux/dma-fence.h> 37760285e7SDavid Howells #include <drm/drmP.h> 38760285e7SDavid Howells #include <drm/drm_crtc.h> 39760285e7SDavid Howells #include <drm/drm_edid.h> 40760285e7SDavid Howells #include <drm/drm_fourcc.h> 4151fd371bSRob Clark #include <drm/drm_modeset_lock.h> 4288a48e29SRob Clark #include <drm/drm_atomic.h> 433b96a0b1SDaniel Vetter #include <drm/drm_auth.h> 449edbf1faSTomeu Vizoso #include <drm/drm_debugfs_crc.h> 45f453ba04SDave Airlie 468bd441b2SDaniel Vetter #include "drm_crtc_internal.h" 4767d0ec4eSDaniel Vetter #include "drm_internal.h" 488bd441b2SDaniel Vetter 496a0d9528SLukas Wunner /** 506a0d9528SLukas Wunner * drm_crtc_force_disable - Forcibly turn off a CRTC 516a0d9528SLukas Wunner * @crtc: CRTC to turn off 526a0d9528SLukas Wunner * 536a0d9528SLukas Wunner * Returns: 546a0d9528SLukas Wunner * Zero on success, error code on failure. 556a0d9528SLukas Wunner */ 566a0d9528SLukas Wunner int drm_crtc_force_disable(struct drm_crtc *crtc) 576a0d9528SLukas Wunner { 586a0d9528SLukas Wunner struct drm_mode_set set = { 596a0d9528SLukas Wunner .crtc = crtc, 606a0d9528SLukas Wunner }; 616a0d9528SLukas Wunner 626a0d9528SLukas Wunner return drm_mode_set_config_internal(&set); 636a0d9528SLukas Wunner } 646a0d9528SLukas Wunner EXPORT_SYMBOL(drm_crtc_force_disable); 656a0d9528SLukas Wunner 666a0d9528SLukas Wunner /** 676a0d9528SLukas Wunner * drm_crtc_force_disable_all - Forcibly turn off all enabled CRTCs 686a0d9528SLukas Wunner * @dev: DRM device whose CRTCs to turn off 696a0d9528SLukas Wunner * 706a0d9528SLukas Wunner * Drivers may want to call this on unload to ensure that all displays are 716a0d9528SLukas Wunner * unlit and the GPU is in a consistent, low power state. Takes modeset locks. 726a0d9528SLukas Wunner * 736a0d9528SLukas Wunner * Returns: 746a0d9528SLukas Wunner * Zero on success, error code on failure. 756a0d9528SLukas Wunner */ 766a0d9528SLukas Wunner int drm_crtc_force_disable_all(struct drm_device *dev) 776a0d9528SLukas Wunner { 786a0d9528SLukas Wunner struct drm_crtc *crtc; 796a0d9528SLukas Wunner int ret = 0; 806a0d9528SLukas Wunner 816a0d9528SLukas Wunner drm_modeset_lock_all(dev); 826a0d9528SLukas Wunner drm_for_each_crtc(crtc, dev) 836a0d9528SLukas Wunner if (crtc->enabled) { 846a0d9528SLukas Wunner ret = drm_crtc_force_disable(crtc); 856a0d9528SLukas Wunner if (ret) 866a0d9528SLukas Wunner goto out; 876a0d9528SLukas Wunner } 886a0d9528SLukas Wunner out: 896a0d9528SLukas Wunner drm_modeset_unlock_all(dev); 906a0d9528SLukas Wunner return ret; 916a0d9528SLukas Wunner } 926a0d9528SLukas Wunner EXPORT_SYMBOL(drm_crtc_force_disable_all); 936a0d9528SLukas Wunner 94fa3ab4c2SVille Syrjälä static unsigned int drm_num_crtcs(struct drm_device *dev) 95fa3ab4c2SVille Syrjälä { 96fa3ab4c2SVille Syrjälä unsigned int num = 0; 97fa3ab4c2SVille Syrjälä struct drm_crtc *tmp; 98fa3ab4c2SVille Syrjälä 99fa3ab4c2SVille Syrjälä drm_for_each_crtc(tmp, dev) { 100fa3ab4c2SVille Syrjälä num++; 101fa3ab4c2SVille Syrjälä } 102fa3ab4c2SVille Syrjälä 103fa3ab4c2SVille Syrjälä return num; 104fa3ab4c2SVille Syrjälä } 105fa3ab4c2SVille Syrjälä 10628575f16SDaniel Vetter int drm_crtc_register_all(struct drm_device *dev) 10779190ea2SBenjamin Gaignard { 10879190ea2SBenjamin Gaignard struct drm_crtc *crtc; 10979190ea2SBenjamin Gaignard int ret = 0; 11079190ea2SBenjamin Gaignard 11179190ea2SBenjamin Gaignard drm_for_each_crtc(crtc, dev) { 1129edbf1faSTomeu Vizoso if (drm_debugfs_crtc_add(crtc)) 1139edbf1faSTomeu Vizoso DRM_ERROR("Failed to initialize debugfs entry for CRTC '%s'.\n", 1149edbf1faSTomeu Vizoso crtc->name); 1159edbf1faSTomeu Vizoso 11679190ea2SBenjamin Gaignard if (crtc->funcs->late_register) 11779190ea2SBenjamin Gaignard ret = crtc->funcs->late_register(crtc); 11879190ea2SBenjamin Gaignard if (ret) 11979190ea2SBenjamin Gaignard return ret; 12079190ea2SBenjamin Gaignard } 12179190ea2SBenjamin Gaignard 12279190ea2SBenjamin Gaignard return 0; 12379190ea2SBenjamin Gaignard } 12479190ea2SBenjamin Gaignard 12528575f16SDaniel Vetter void drm_crtc_unregister_all(struct drm_device *dev) 12679190ea2SBenjamin Gaignard { 12779190ea2SBenjamin Gaignard struct drm_crtc *crtc; 12879190ea2SBenjamin Gaignard 12979190ea2SBenjamin Gaignard drm_for_each_crtc(crtc, dev) { 13079190ea2SBenjamin Gaignard if (crtc->funcs->early_unregister) 13179190ea2SBenjamin Gaignard crtc->funcs->early_unregister(crtc); 1329edbf1faSTomeu Vizoso drm_debugfs_crtc_remove(crtc); 13379190ea2SBenjamin Gaignard } 13479190ea2SBenjamin Gaignard } 13579190ea2SBenjamin Gaignard 1369edbf1faSTomeu Vizoso static int drm_crtc_crc_init(struct drm_crtc *crtc) 1379edbf1faSTomeu Vizoso { 1389edbf1faSTomeu Vizoso #ifdef CONFIG_DEBUG_FS 1399edbf1faSTomeu Vizoso spin_lock_init(&crtc->crc.lock); 1409edbf1faSTomeu Vizoso init_waitqueue_head(&crtc->crc.wq); 1419edbf1faSTomeu Vizoso crtc->crc.source = kstrdup("auto", GFP_KERNEL); 1429edbf1faSTomeu Vizoso if (!crtc->crc.source) 1439edbf1faSTomeu Vizoso return -ENOMEM; 1449edbf1faSTomeu Vizoso #endif 1459edbf1faSTomeu Vizoso return 0; 1469edbf1faSTomeu Vizoso } 1479edbf1faSTomeu Vizoso 1489edbf1faSTomeu Vizoso static void drm_crtc_crc_fini(struct drm_crtc *crtc) 1499edbf1faSTomeu Vizoso { 1509edbf1faSTomeu Vizoso #ifdef CONFIG_DEBUG_FS 1519edbf1faSTomeu Vizoso kfree(crtc->crc.source); 1529edbf1faSTomeu Vizoso #endif 1539edbf1faSTomeu Vizoso } 1549edbf1faSTomeu Vizoso 15535f8cc3bSGustavo Padovan static const struct dma_fence_ops drm_crtc_fence_ops; 15635f8cc3bSGustavo Padovan 1576d6003c4SGustavo Padovan static struct drm_crtc *fence_to_crtc(struct dma_fence *fence) 1586d6003c4SGustavo Padovan { 1596d6003c4SGustavo Padovan BUG_ON(fence->ops != &drm_crtc_fence_ops); 1606d6003c4SGustavo Padovan return container_of(fence->lock, struct drm_crtc, fence_lock); 1616d6003c4SGustavo Padovan } 1626d6003c4SGustavo Padovan 1636d6003c4SGustavo Padovan static const char *drm_crtc_fence_get_driver_name(struct dma_fence *fence) 1646d6003c4SGustavo Padovan { 1656d6003c4SGustavo Padovan struct drm_crtc *crtc = fence_to_crtc(fence); 1666d6003c4SGustavo Padovan 1676d6003c4SGustavo Padovan return crtc->dev->driver->name; 1686d6003c4SGustavo Padovan } 1696d6003c4SGustavo Padovan 1706d6003c4SGustavo Padovan static const char *drm_crtc_fence_get_timeline_name(struct dma_fence *fence) 1716d6003c4SGustavo Padovan { 1726d6003c4SGustavo Padovan struct drm_crtc *crtc = fence_to_crtc(fence); 1736d6003c4SGustavo Padovan 1746d6003c4SGustavo Padovan return crtc->timeline_name; 1756d6003c4SGustavo Padovan } 1766d6003c4SGustavo Padovan 1776d6003c4SGustavo Padovan static bool drm_crtc_fence_enable_signaling(struct dma_fence *fence) 1786d6003c4SGustavo Padovan { 1796d6003c4SGustavo Padovan return true; 1806d6003c4SGustavo Padovan } 1816d6003c4SGustavo Padovan 18235f8cc3bSGustavo Padovan static const struct dma_fence_ops drm_crtc_fence_ops = { 1836d6003c4SGustavo Padovan .get_driver_name = drm_crtc_fence_get_driver_name, 1846d6003c4SGustavo Padovan .get_timeline_name = drm_crtc_fence_get_timeline_name, 1856d6003c4SGustavo Padovan .enable_signaling = drm_crtc_fence_enable_signaling, 1866d6003c4SGustavo Padovan .wait = dma_fence_default_wait, 1876d6003c4SGustavo Padovan }; 1886d6003c4SGustavo Padovan 18935f8cc3bSGustavo Padovan struct dma_fence *drm_crtc_create_fence(struct drm_crtc *crtc) 19035f8cc3bSGustavo Padovan { 19135f8cc3bSGustavo Padovan struct dma_fence *fence; 19235f8cc3bSGustavo Padovan 19335f8cc3bSGustavo Padovan fence = kzalloc(sizeof(*fence), GFP_KERNEL); 19435f8cc3bSGustavo Padovan if (!fence) 19535f8cc3bSGustavo Padovan return NULL; 19635f8cc3bSGustavo Padovan 19735f8cc3bSGustavo Padovan dma_fence_init(fence, &drm_crtc_fence_ops, &crtc->fence_lock, 19835f8cc3bSGustavo Padovan crtc->fence_context, ++crtc->fence_seqno); 19935f8cc3bSGustavo Padovan 20035f8cc3bSGustavo Padovan return fence; 20135f8cc3bSGustavo Padovan } 20235f8cc3bSGustavo Padovan 203f453ba04SDave Airlie /** 204e13161afSMatt Roper * drm_crtc_init_with_planes - Initialise a new CRTC object with 205e13161afSMatt Roper * specified primary and cursor planes. 206f453ba04SDave Airlie * @dev: DRM device 207f453ba04SDave Airlie * @crtc: CRTC object to init 208e13161afSMatt Roper * @primary: Primary plane for CRTC 209e13161afSMatt Roper * @cursor: Cursor plane for CRTC 210f453ba04SDave Airlie * @funcs: callbacks for the new CRTC 211f9882876SVille Syrjälä * @name: printf style format string for the CRTC name, or NULL for default name 212f453ba04SDave Airlie * 213532b3671SDaniel Vetter * Inits a new object created as base part of a driver crtc object. Drivers 214532b3671SDaniel Vetter * should use this function instead of drm_crtc_init(), which is only provided 215532b3671SDaniel Vetter * for backwards compatibility with drivers which do not yet support universal 216532b3671SDaniel Vetter * planes). For really simple hardware which has only 1 plane look at 217532b3671SDaniel Vetter * drm_simple_display_pipe_init() instead. 2186bfc56aaSVille Syrjälä * 219c8e32cc1SDaniel Vetter * Returns: 2206bfc56aaSVille Syrjälä * Zero on success, error code on failure. 221f453ba04SDave Airlie */ 222e13161afSMatt Roper int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, 223e13161afSMatt Roper struct drm_plane *primary, 224fc1d3e44SMatt Roper struct drm_plane *cursor, 225f9882876SVille Syrjälä const struct drm_crtc_funcs *funcs, 226f9882876SVille Syrjälä const char *name, ...) 227f453ba04SDave Airlie { 22851fd371bSRob Clark struct drm_mode_config *config = &dev->mode_config; 2296bfc56aaSVille Syrjälä int ret; 2306bfc56aaSVille Syrjälä 231522cf91fSBenjamin Gaignard WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); 232522cf91fSBenjamin Gaignard WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); 233522cf91fSBenjamin Gaignard 234f453ba04SDave Airlie crtc->dev = dev; 235f453ba04SDave Airlie crtc->funcs = funcs; 236f453ba04SDave Airlie 2373b24f7d6SDaniel Vetter INIT_LIST_HEAD(&crtc->commit_list); 2383b24f7d6SDaniel Vetter spin_lock_init(&crtc->commit_lock); 2393b24f7d6SDaniel Vetter 24051fd371bSRob Clark drm_modeset_lock_init(&crtc->mutex); 2416bfc56aaSVille Syrjälä ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 2426bfc56aaSVille Syrjälä if (ret) 243baf698b0SDaniel Vetter return ret; 244f453ba04SDave Airlie 245fa3ab4c2SVille Syrjälä if (name) { 246fa3ab4c2SVille Syrjälä va_list ap; 247fa3ab4c2SVille Syrjälä 248fa3ab4c2SVille Syrjälä va_start(ap, name); 249fa3ab4c2SVille Syrjälä crtc->name = kvasprintf(GFP_KERNEL, name, ap); 250fa3ab4c2SVille Syrjälä va_end(ap); 251fa3ab4c2SVille Syrjälä } else { 252fa3ab4c2SVille Syrjälä crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", 253fa3ab4c2SVille Syrjälä drm_num_crtcs(dev)); 254fa3ab4c2SVille Syrjälä } 255fa3ab4c2SVille Syrjälä if (!crtc->name) { 2567c8f6d25SDave Airlie drm_mode_object_unregister(dev, &crtc->base); 257fa3ab4c2SVille Syrjälä return -ENOMEM; 258fa3ab4c2SVille Syrjälä } 259fa3ab4c2SVille Syrjälä 2606d6003c4SGustavo Padovan crtc->fence_context = dma_fence_context_alloc(1); 2616d6003c4SGustavo Padovan spin_lock_init(&crtc->fence_lock); 2626d6003c4SGustavo Padovan snprintf(crtc->timeline_name, sizeof(crtc->timeline_name), 2636d6003c4SGustavo Padovan "CRTC:%d-%s", crtc->base.id, crtc->name); 2646d6003c4SGustavo Padovan 265bffd9de0SPaulo Zanoni crtc->base.properties = &crtc->properties; 266bffd9de0SPaulo Zanoni 26751fd371bSRob Clark list_add_tail(&crtc->head, &config->crtc_list); 268490d3d1bSChris Wilson crtc->index = config->num_crtc++; 2696bfc56aaSVille Syrjälä 270e13161afSMatt Roper crtc->primary = primary; 271fc1d3e44SMatt Roper crtc->cursor = cursor; 2727abc7d47SRob Clark if (primary && !primary->possible_crtcs) 273e13161afSMatt Roper primary->possible_crtcs = 1 << drm_crtc_index(crtc); 2747abc7d47SRob Clark if (cursor && !cursor->possible_crtcs) 275fc1d3e44SMatt Roper cursor->possible_crtcs = 1 << drm_crtc_index(crtc); 276e13161afSMatt Roper 2779edbf1faSTomeu Vizoso ret = drm_crtc_crc_init(crtc); 2789edbf1faSTomeu Vizoso if (ret) { 2799edbf1faSTomeu Vizoso drm_mode_object_unregister(dev, &crtc->base); 2809edbf1faSTomeu Vizoso return ret; 2819edbf1faSTomeu Vizoso } 2829edbf1faSTomeu Vizoso 283eab3bbefSDaniel Vetter if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { 284eab3bbefSDaniel Vetter drm_object_attach_property(&crtc->base, config->prop_active, 0); 285955f3c33SDaniel Stone drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); 286beaf5af4SGustavo Padovan drm_object_attach_property(&crtc->base, 287beaf5af4SGustavo Padovan config->prop_out_fence_ptr, 0); 288eab3bbefSDaniel Vetter } 289eab3bbefSDaniel Vetter 290baf698b0SDaniel Vetter return 0; 291f453ba04SDave Airlie } 292e13161afSMatt Roper EXPORT_SYMBOL(drm_crtc_init_with_planes); 293f453ba04SDave Airlie 294f453ba04SDave Airlie /** 295ad6f5c34SVille Syrjälä * drm_crtc_cleanup - Clean up the core crtc usage 296f453ba04SDave Airlie * @crtc: CRTC to cleanup 297f453ba04SDave Airlie * 298ad6f5c34SVille Syrjälä * This function cleans up @crtc and removes it from the DRM mode setting 299ad6f5c34SVille Syrjälä * core. Note that the function does *not* free the crtc structure itself, 300ad6f5c34SVille Syrjälä * this is the responsibility of the caller. 301f453ba04SDave Airlie */ 302f453ba04SDave Airlie void drm_crtc_cleanup(struct drm_crtc *crtc) 303f453ba04SDave Airlie { 304f453ba04SDave Airlie struct drm_device *dev = crtc->dev; 305f453ba04SDave Airlie 306490d3d1bSChris Wilson /* Note that the crtc_list is considered to be static; should we 307490d3d1bSChris Wilson * remove the drm_crtc at runtime we would have to decrement all 308490d3d1bSChris Wilson * the indices on the drm_crtc after us in the crtc_list. 309490d3d1bSChris Wilson */ 310490d3d1bSChris Wilson 3119edbf1faSTomeu Vizoso drm_crtc_crc_fini(crtc); 3129edbf1faSTomeu Vizoso 313f453ba04SDave Airlie kfree(crtc->gamma_store); 314f453ba04SDave Airlie crtc->gamma_store = NULL; 315f453ba04SDave Airlie 31651fd371bSRob Clark drm_modeset_lock_fini(&crtc->mutex); 31751fd371bSRob Clark 3187c8f6d25SDave Airlie drm_mode_object_unregister(dev, &crtc->base); 319f453ba04SDave Airlie list_del(&crtc->head); 320f453ba04SDave Airlie dev->mode_config.num_crtc--; 3213009c037SThierry Reding 3223009c037SThierry Reding WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); 3233009c037SThierry Reding if (crtc->state && crtc->funcs->atomic_destroy_state) 3243009c037SThierry Reding crtc->funcs->atomic_destroy_state(crtc, crtc->state); 325a18c0af1SThierry Reding 326fa3ab4c2SVille Syrjälä kfree(crtc->name); 327fa3ab4c2SVille Syrjälä 328a18c0af1SThierry Reding memset(crtc, 0, sizeof(*crtc)); 329f453ba04SDave Airlie } 330f453ba04SDave Airlie EXPORT_SYMBOL(drm_crtc_cleanup); 331f453ba04SDave Airlie 332f453ba04SDave Airlie /** 333f453ba04SDave Airlie * drm_mode_getcrtc - get CRTC configuration 334065a50edSDaniel Vetter * @dev: drm device for the ioctl 335065a50edSDaniel Vetter * @data: data pointer for the ioctl 336065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 337f453ba04SDave Airlie * 338f453ba04SDave Airlie * Construct a CRTC configuration structure to return to the user. 339f453ba04SDave Airlie * 340f453ba04SDave Airlie * Called by the user via ioctl. 341f453ba04SDave Airlie * 342c8e32cc1SDaniel Vetter * Returns: 3431a498633SDaniel Vetter * Zero on success, negative errno on failure. 344f453ba04SDave Airlie */ 345f453ba04SDave Airlie int drm_mode_getcrtc(struct drm_device *dev, 346f453ba04SDave Airlie void *data, struct drm_file *file_priv) 347f453ba04SDave Airlie { 348f453ba04SDave Airlie struct drm_mode_crtc *crtc_resp = data; 349f453ba04SDave Airlie struct drm_crtc *crtc; 350f453ba04SDave Airlie 351fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 352fb3b06c8SDave Airlie return -EINVAL; 353fb3b06c8SDave Airlie 354a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_resp->crtc_id); 355fcf93f69SDaniel Vetter if (!crtc) 356fcf93f69SDaniel Vetter return -ENOENT; 357f453ba04SDave Airlie 358fcf93f69SDaniel Vetter drm_modeset_lock_crtc(crtc, crtc->primary); 359f453ba04SDave Airlie crtc_resp->gamma_size = crtc->gamma_size; 360f4510a27SMatt Roper if (crtc->primary->fb) 361f4510a27SMatt Roper crtc_resp->fb_id = crtc->primary->fb->base.id; 362f453ba04SDave Airlie else 363f453ba04SDave Airlie crtc_resp->fb_id = 0; 364f453ba04SDave Airlie 36531c946e8SDaniel Vetter if (crtc->state) { 36631c946e8SDaniel Vetter crtc_resp->x = crtc->primary->state->src_x >> 16; 36731c946e8SDaniel Vetter crtc_resp->y = crtc->primary->state->src_y >> 16; 36831c946e8SDaniel Vetter if (crtc->state->enable) { 369934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); 37031c946e8SDaniel Vetter crtc_resp->mode_valid = 1; 371f453ba04SDave Airlie 37231c946e8SDaniel Vetter } else { 37331c946e8SDaniel Vetter crtc_resp->mode_valid = 0; 37431c946e8SDaniel Vetter } 37531c946e8SDaniel Vetter } else { 37631c946e8SDaniel Vetter crtc_resp->x = crtc->x; 37731c946e8SDaniel Vetter crtc_resp->y = crtc->y; 37831c946e8SDaniel Vetter if (crtc->enabled) { 379934a8a89SDaniel Stone drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); 380f453ba04SDave Airlie crtc_resp->mode_valid = 1; 381f453ba04SDave Airlie 382f453ba04SDave Airlie } else { 383f453ba04SDave Airlie crtc_resp->mode_valid = 0; 384f453ba04SDave Airlie } 38531c946e8SDaniel Vetter } 386fcf93f69SDaniel Vetter drm_modeset_unlock_crtc(crtc); 387f453ba04SDave Airlie 388baf698b0SDaniel Vetter return 0; 389f453ba04SDave Airlie } 390f453ba04SDave Airlie 391f453ba04SDave Airlie /** 3922d13b679SDaniel Vetter * drm_mode_set_config_internal - helper to call ->set_config 3932d13b679SDaniel Vetter * @set: modeset config to set 3942d13b679SDaniel Vetter * 3952d13b679SDaniel Vetter * This is a little helper to wrap internal calls to the ->set_config driver 3962d13b679SDaniel Vetter * interface. The only thing it adds is correct refcounting dance. 397c8e32cc1SDaniel Vetter * 398c8e32cc1SDaniel Vetter * Returns: 3991a498633SDaniel Vetter * Zero on success, negative errno on failure. 4002d13b679SDaniel Vetter */ 4012d13b679SDaniel Vetter int drm_mode_set_config_internal(struct drm_mode_set *set) 4022d13b679SDaniel Vetter { 4032d13b679SDaniel Vetter struct drm_crtc *crtc = set->crtc; 4045cef29aaSDaniel Vetter struct drm_framebuffer *fb; 4055cef29aaSDaniel Vetter struct drm_crtc *tmp; 406b0d12325SDaniel Vetter int ret; 4072d13b679SDaniel Vetter 4085cef29aaSDaniel Vetter /* 4095cef29aaSDaniel Vetter * NOTE: ->set_config can also disable other crtcs (if we steal all 4105cef29aaSDaniel Vetter * connectors from it), hence we need to refcount the fbs across all 4115cef29aaSDaniel Vetter * crtcs. Atomic modeset will have saner semantics ... 4125cef29aaSDaniel Vetter */ 413e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) 4143d30a59bSDaniel Vetter tmp->primary->old_fb = tmp->primary->fb; 4155cef29aaSDaniel Vetter 416b0d12325SDaniel Vetter fb = set->fb; 417b0d12325SDaniel Vetter 418b0d12325SDaniel Vetter ret = crtc->funcs->set_config(set); 419b0d12325SDaniel Vetter if (ret == 0) { 420e13161afSMatt Roper crtc->primary->crtc = crtc; 4210fe27f06SDaniel Vetter crtc->primary->fb = fb; 4225cef29aaSDaniel Vetter } 423cc85e121SDaniel Vetter 424e4f62546SDaniel Vetter drm_for_each_crtc(tmp, crtc->dev) { 425f4510a27SMatt Roper if (tmp->primary->fb) 426f4510a27SMatt Roper drm_framebuffer_reference(tmp->primary->fb); 4273d30a59bSDaniel Vetter if (tmp->primary->old_fb) 4283d30a59bSDaniel Vetter drm_framebuffer_unreference(tmp->primary->old_fb); 4293d30a59bSDaniel Vetter tmp->primary->old_fb = NULL; 430b0d12325SDaniel Vetter } 431b0d12325SDaniel Vetter 432b0d12325SDaniel Vetter return ret; 4332d13b679SDaniel Vetter } 4342d13b679SDaniel Vetter EXPORT_SYMBOL(drm_mode_set_config_internal); 4352d13b679SDaniel Vetter 436af93629dSMatt Roper /** 437ecb7e16bSGustavo Padovan * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode 438ecb7e16bSGustavo Padovan * @mode: mode to query 439ecb7e16bSGustavo Padovan * @hdisplay: hdisplay value to fill in 440ecb7e16bSGustavo Padovan * @vdisplay: vdisplay value to fill in 441ecb7e16bSGustavo Padovan * 442ecb7e16bSGustavo Padovan * The vdisplay value will be doubled if the specified mode is a stereo mode of 443ecb7e16bSGustavo Padovan * the appropriate layout. 444ecb7e16bSGustavo Padovan */ 445ecb7e16bSGustavo Padovan void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, 446ecb7e16bSGustavo Padovan int *hdisplay, int *vdisplay) 447ecb7e16bSGustavo Padovan { 448ecb7e16bSGustavo Padovan struct drm_display_mode adjusted; 449ecb7e16bSGustavo Padovan 450ecb7e16bSGustavo Padovan drm_mode_copy(&adjusted, mode); 451ecb7e16bSGustavo Padovan drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); 452ecb7e16bSGustavo Padovan *hdisplay = adjusted.crtc_hdisplay; 453ecb7e16bSGustavo Padovan *vdisplay = adjusted.crtc_vdisplay; 454ecb7e16bSGustavo Padovan } 455ecb7e16bSGustavo Padovan EXPORT_SYMBOL(drm_crtc_get_hv_timing); 456ecb7e16bSGustavo Padovan 457ecb7e16bSGustavo Padovan /** 458af93629dSMatt Roper * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the 459af93629dSMatt Roper * CRTC viewport 460af93629dSMatt Roper * @crtc: CRTC that framebuffer will be displayed on 461af93629dSMatt Roper * @x: x panning 462af93629dSMatt Roper * @y: y panning 463af93629dSMatt Roper * @mode: mode that framebuffer will be displayed under 464af93629dSMatt Roper * @fb: framebuffer to check size of 465c11e9283SDamien Lespiau */ 466af93629dSMatt Roper int drm_crtc_check_viewport(const struct drm_crtc *crtc, 467c11e9283SDamien Lespiau int x, int y, 468c11e9283SDamien Lespiau const struct drm_display_mode *mode, 469c11e9283SDamien Lespiau const struct drm_framebuffer *fb) 470c11e9283SDamien Lespiau 471c11e9283SDamien Lespiau { 472c11e9283SDamien Lespiau int hdisplay, vdisplay; 473c11e9283SDamien Lespiau 474ecb7e16bSGustavo Padovan drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); 475a0c1bbb0SDamien Lespiau 47633e0be63SVille Syrjälä if (crtc->state && 477bd2ef25dSVille Syrjälä drm_rotation_90_or_270(crtc->primary->state->rotation)) 478c11e9283SDamien Lespiau swap(hdisplay, vdisplay); 479c11e9283SDamien Lespiau 48043968d7bSDaniel Vetter return drm_framebuffer_check_src_coords(x << 16, y << 16, 48143968d7bSDaniel Vetter hdisplay << 16, vdisplay << 16, 48243968d7bSDaniel Vetter fb); 483c11e9283SDamien Lespiau } 484af93629dSMatt Roper EXPORT_SYMBOL(drm_crtc_check_viewport); 485c11e9283SDamien Lespiau 4862d13b679SDaniel Vetter /** 487f453ba04SDave Airlie * drm_mode_setcrtc - set CRTC configuration 488065a50edSDaniel Vetter * @dev: drm device for the ioctl 489065a50edSDaniel Vetter * @data: data pointer for the ioctl 490065a50edSDaniel Vetter * @file_priv: drm file for the ioctl call 491f453ba04SDave Airlie * 492f453ba04SDave Airlie * Build a new CRTC configuration based on user request. 493f453ba04SDave Airlie * 494f453ba04SDave Airlie * Called by the user via ioctl. 495f453ba04SDave Airlie * 496c8e32cc1SDaniel Vetter * Returns: 4971a498633SDaniel Vetter * Zero on success, negative errno on failure. 498f453ba04SDave Airlie */ 499f453ba04SDave Airlie int drm_mode_setcrtc(struct drm_device *dev, void *data, 500f453ba04SDave Airlie struct drm_file *file_priv) 501f453ba04SDave Airlie { 502f453ba04SDave Airlie struct drm_mode_config *config = &dev->mode_config; 503f453ba04SDave Airlie struct drm_mode_crtc *crtc_req = data; 5046653cc8dSVille Syrjälä struct drm_crtc *crtc; 505f453ba04SDave Airlie struct drm_connector **connector_set = NULL, *connector; 506f453ba04SDave Airlie struct drm_framebuffer *fb = NULL; 507f453ba04SDave Airlie struct drm_display_mode *mode = NULL; 508f453ba04SDave Airlie struct drm_mode_set set; 509f453ba04SDave Airlie uint32_t __user *set_connectors_ptr; 5104a1b0714SLaurent Pinchart int ret; 511f453ba04SDave Airlie int i; 512f453ba04SDave Airlie 513fb3b06c8SDave Airlie if (!drm_core_check_feature(dev, DRIVER_MODESET)) 514fb3b06c8SDave Airlie return -EINVAL; 515fb3b06c8SDave Airlie 51601447e9fSZhao Junwang /* 51701447e9fSZhao Junwang * Universal plane src offsets are only 16.16, prevent havoc for 51801447e9fSZhao Junwang * drivers using universal plane code internally. 51901447e9fSZhao Junwang */ 52001447e9fSZhao Junwang if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) 5211d97e915SVille Syrjälä return -ERANGE; 5221d97e915SVille Syrjälä 52384849903SDaniel Vetter drm_modeset_lock_all(dev); 524a2b34e22SRob Clark crtc = drm_crtc_find(dev, crtc_req->crtc_id); 525a2b34e22SRob Clark if (!crtc) { 52658367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 527f27657f2SVille Syrjälä ret = -ENOENT; 528f453ba04SDave Airlie goto out; 529f453ba04SDave Airlie } 530fa3ab4c2SVille Syrjälä DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); 531f453ba04SDave Airlie 532f453ba04SDave Airlie if (crtc_req->mode_valid) { 533f453ba04SDave Airlie /* If we have a mode we need a framebuffer. */ 534f453ba04SDave Airlie /* If we pass -1, set the mode with the currently bound fb */ 535f453ba04SDave Airlie if (crtc_req->fb_id == -1) { 536f4510a27SMatt Roper if (!crtc->primary->fb) { 5376653cc8dSVille Syrjälä DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 5386653cc8dSVille Syrjälä ret = -EINVAL; 5396653cc8dSVille Syrjälä goto out; 5406653cc8dSVille Syrjälä } 541f4510a27SMatt Roper fb = crtc->primary->fb; 542b0d12325SDaniel Vetter /* Make refcounting symmetric with the lookup path. */ 543b0d12325SDaniel Vetter drm_framebuffer_reference(fb); 544f453ba04SDave Airlie } else { 545786b99edSDaniel Vetter fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); 546786b99edSDaniel Vetter if (!fb) { 54758367ed6SZhao Yakui DRM_DEBUG_KMS("Unknown FB ID%d\n", 54858367ed6SZhao Yakui crtc_req->fb_id); 54937c4e705SVille Syrjälä ret = -ENOENT; 550f453ba04SDave Airlie goto out; 551f453ba04SDave Airlie } 552f453ba04SDave Airlie } 553f453ba04SDave Airlie 554f453ba04SDave Airlie mode = drm_mode_create(dev); 555ee34ab5bSVille Syrjälä if (!mode) { 556ee34ab5bSVille Syrjälä ret = -ENOMEM; 557ee34ab5bSVille Syrjälä goto out; 558ee34ab5bSVille Syrjälä } 559ee34ab5bSVille Syrjälä 560934a8a89SDaniel Stone ret = drm_mode_convert_umode(mode, &crtc_req->mode); 56190367bf6SVille Syrjälä if (ret) { 56290367bf6SVille Syrjälä DRM_DEBUG_KMS("Invalid mode\n"); 56390367bf6SVille Syrjälä goto out; 56490367bf6SVille Syrjälä } 56590367bf6SVille Syrjälä 5667eb5f302SLaurent Pinchart /* 5677eb5f302SLaurent Pinchart * Check whether the primary plane supports the fb pixel format. 5687eb5f302SLaurent Pinchart * Drivers not implementing the universal planes API use a 5697eb5f302SLaurent Pinchart * default formats list provided by the DRM core which doesn't 5707eb5f302SLaurent Pinchart * match real hardware capabilities. Skip the check in that 5717eb5f302SLaurent Pinchart * case. 5727eb5f302SLaurent Pinchart */ 5737eb5f302SLaurent Pinchart if (!crtc->primary->format_default) { 5747eb5f302SLaurent Pinchart ret = drm_plane_check_pixel_format(crtc->primary, 5757eb5f302SLaurent Pinchart fb->pixel_format); 5767eb5f302SLaurent Pinchart if (ret) { 577b3c11ac2SEric Engestrom struct drm_format_name_buf format_name; 578b3c11ac2SEric Engestrom DRM_DEBUG_KMS("Invalid pixel format %s\n", 579b3c11ac2SEric Engestrom drm_get_format_name(fb->pixel_format, 580b3c11ac2SEric Engestrom &format_name)); 5817eb5f302SLaurent Pinchart goto out; 5827eb5f302SLaurent Pinchart } 5837eb5f302SLaurent Pinchart } 5847eb5f302SLaurent Pinchart 585c11e9283SDamien Lespiau ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, 586c11e9283SDamien Lespiau mode, fb); 587c11e9283SDamien Lespiau if (ret) 5885f61bb42SVille Syrjälä goto out; 589c11e9283SDamien Lespiau 590f453ba04SDave Airlie } 591f453ba04SDave Airlie 592f453ba04SDave Airlie if (crtc_req->count_connectors == 0 && mode) { 59358367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 594f453ba04SDave Airlie ret = -EINVAL; 595f453ba04SDave Airlie goto out; 596f453ba04SDave Airlie } 597f453ba04SDave Airlie 5987781de74SJakob Bornecrantz if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 59958367ed6SZhao Yakui DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 600f453ba04SDave Airlie crtc_req->count_connectors); 601f453ba04SDave Airlie ret = -EINVAL; 602f453ba04SDave Airlie goto out; 603f453ba04SDave Airlie } 604f453ba04SDave Airlie 605f453ba04SDave Airlie if (crtc_req->count_connectors > 0) { 606f453ba04SDave Airlie u32 out_id; 607f453ba04SDave Airlie 608f453ba04SDave Airlie /* Avoid unbounded kernel memory allocation */ 609f453ba04SDave Airlie if (crtc_req->count_connectors > config->num_connector) { 610f453ba04SDave Airlie ret = -EINVAL; 611f453ba04SDave Airlie goto out; 612f453ba04SDave Airlie } 613f453ba04SDave Airlie 6142f6c5389SThierry Reding connector_set = kmalloc_array(crtc_req->count_connectors, 615f453ba04SDave Airlie sizeof(struct drm_connector *), 616f453ba04SDave Airlie GFP_KERNEL); 617f453ba04SDave Airlie if (!connector_set) { 618f453ba04SDave Airlie ret = -ENOMEM; 619f453ba04SDave Airlie goto out; 620f453ba04SDave Airlie } 621f453ba04SDave Airlie 622f453ba04SDave Airlie for (i = 0; i < crtc_req->count_connectors; i++) { 623b164d31fSDave Airlie connector_set[i] = NULL; 62481f6c7f8SVille Syrjälä set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 625f453ba04SDave Airlie if (get_user(out_id, &set_connectors_ptr[i])) { 626f453ba04SDave Airlie ret = -EFAULT; 627f453ba04SDave Airlie goto out; 628f453ba04SDave Airlie } 629f453ba04SDave Airlie 630b164d31fSDave Airlie connector = drm_connector_lookup(dev, out_id); 631a2b34e22SRob Clark if (!connector) { 63258367ed6SZhao Yakui DRM_DEBUG_KMS("Connector id %d unknown\n", 63358367ed6SZhao Yakui out_id); 634f27657f2SVille Syrjälä ret = -ENOENT; 635f453ba04SDave Airlie goto out; 636f453ba04SDave Airlie } 6379440106bSJerome Glisse DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 6389440106bSJerome Glisse connector->base.id, 63925933820SJani Nikula connector->name); 640f453ba04SDave Airlie 641f453ba04SDave Airlie connector_set[i] = connector; 642f453ba04SDave Airlie } 643f453ba04SDave Airlie } 644f453ba04SDave Airlie 645f453ba04SDave Airlie set.crtc = crtc; 646f453ba04SDave Airlie set.x = crtc_req->x; 647f453ba04SDave Airlie set.y = crtc_req->y; 648f453ba04SDave Airlie set.mode = mode; 649f453ba04SDave Airlie set.connectors = connector_set; 650f453ba04SDave Airlie set.num_connectors = crtc_req->count_connectors; 651f453ba04SDave Airlie set.fb = fb; 6522d13b679SDaniel Vetter ret = drm_mode_set_config_internal(&set); 653f453ba04SDave Airlie 654f453ba04SDave Airlie out: 655b0d12325SDaniel Vetter if (fb) 656b0d12325SDaniel Vetter drm_framebuffer_unreference(fb); 657b0d12325SDaniel Vetter 658b164d31fSDave Airlie if (connector_set) { 659b164d31fSDave Airlie for (i = 0; i < crtc_req->count_connectors; i++) { 660b164d31fSDave Airlie if (connector_set[i]) 661b164d31fSDave Airlie drm_connector_unreference(connector_set[i]); 662b164d31fSDave Airlie } 663b164d31fSDave Airlie } 664f453ba04SDave Airlie kfree(connector_set); 665ee34ab5bSVille Syrjälä drm_mode_destroy(dev, mode); 66684849903SDaniel Vetter drm_modeset_unlock_all(dev); 667f453ba04SDave Airlie return ret; 668f453ba04SDave Airlie } 669f453ba04SDave Airlie 670949619f3SDaniel Vetter int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, 671bffd9de0SPaulo Zanoni struct drm_property *property, 672bffd9de0SPaulo Zanoni uint64_t value) 673bffd9de0SPaulo Zanoni { 674bffd9de0SPaulo Zanoni int ret = -EINVAL; 675bffd9de0SPaulo Zanoni struct drm_crtc *crtc = obj_to_crtc(obj); 676bffd9de0SPaulo Zanoni 677bffd9de0SPaulo Zanoni if (crtc->funcs->set_property) 678bffd9de0SPaulo Zanoni ret = crtc->funcs->set_property(crtc, property, value); 679bffd9de0SPaulo Zanoni if (!ret) 680bffd9de0SPaulo Zanoni drm_object_property_set_value(obj, property, value); 681bffd9de0SPaulo Zanoni 682bffd9de0SPaulo Zanoni return ret; 683bffd9de0SPaulo Zanoni } 684