Merge tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "The usual lots of work all over the place.

  i915 has gotten some Alderlake work and prelim DG1 code, along with a
  major locking rework over the GEM code, and brings back the property
  of timing out long running jobs using a watchdog. amdgpu has some
  Alderbran support (new GPU), freesync HDMI support along with a lot
  other fixes.

  Outside of the drm, there is a new printf specifier added which should
  have all the correct acks/sobs:

   - printk fourcc modifier support added %p4cc

  Summary:

  core:
   - drm_crtc_commit_wait
   - atomic plane state helpers reworked for full state
   - dma-buf heaps API rework
   - edid: rework and improvements for displayid

  dp-mst:
   - better topology logging

  bridge:
   - Chipone ICN6211
   - Lontium LT8912B
   - anx7625 regulator support

  panel:
   - fix lt9611 4k panels handling

  simple-kms:
   - add plane state helpers

  ttm:
   - debugfs support
   - removal of unused sysfs
   - ignore signaled moved fences
   - ioremap buffer according to mem caching

  i915:
   - Alderlake S enablement
   - Conversion to dma_resv_locking
   - Bring back watchdog timeout support
   - legacy ioctl cleanups
   - add GEM TDDO and RFC process
   - DG1 LMEM preparation work
   - intel_display.c refactoring
   - Gen9/TGL PCH combination support
   - eDP MSO Support
   - multiple PSR instance support
   - Link training debug updates
   - Disable PSR2 support on JSL/EHL
   - DDR5/LPDDR5 support for bw calcs
   - LSPCON limited to gen9/10 platforms
   - HSW/BDW async flip/VTd corruption workaround
   - SAGV watermark fixes
   - SNB hard hang on ring resume fix
   - Limit imported dma-buf size
   - move to use new tasklet API
   - refactor KBL/TGL/ADL-S display/gt steppings
   - refactoring legacy DP/HDMI, FB plane code out

  amdgpu:
   - uapi: add ioctl to query video capabilities
   - Iniital AMD Freesync HDMI support
   - Initial Adebaran support
   - 10bpc dithering improvements
   - DCN secure display support
   - Drop legacy IO BAR requirements
   - PCIE/S0ix/RAS/Prime/Reset fixes
   - Display ASSR support
   - SMU gfx busy queues for RV/PCO
   - Initial LTTPR display work

  amdkfd:
   - MMU notifier fixes
   - APU fixes

  radeon:
   - debugfs cleanps
   - fw error handling ifix
   - Flexible array cleanups

  msm:
   - big DSI phy/pll cleanup
   - sc7280 initial support
   - commong bandwidth scaling path
   - shrinker locking contention fixes
   - unpin/swap support for GEM objcets

  ast:
   - cursor plane handling reworked

  tegra:
   - don't register DP AUX channels before connectors

  zynqmp:
   - fix OOB struct padding memset

  gma500:
   - drop ttm and medfield support

  exynos:
   - request_irq cleanup function

  mediatek:
   - fine tune line time for EOTp
   - MT8192 dpi support
   - atomic crtc config updates
   - don't support HDMI connector creation

  mxsdb:
   - imx8mm support

  panfrost:
   - MMU IRQ handling rework

  qxl:
   - locking fixes
   - resource deallocation changes

  sun4i:
   - add alpha properties to UI/VI layers

  vc4:
   - RPi4 CEC support

  vmwgfx:
   - doc cleanups

  arc:
   - moved to drm/tiny"

* tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm: (1390 commits)
  drm/ttm: Don't count pages in SG BOs against pages_limit
  drm/ttm: fix return value check
  drm/bridge: lt8912b: fix incorrect handling of of_* return values
  drm: bridge: fix LONTIUM use of mipi_dsi_() functions
  drm: bridge: fix ANX7625 use of mipi_dsi_() functions
  drm/amdgpu: page retire over debugfs mechanism
  drm/radeon: Fix a missing check bug in radeon_dp_mst_detect()
  drm/amd/display: Fix the Wunused-function warning
  drm/radeon/r600: Fix variables that are not used after assignment
  drm/amdgpu/smu7: fix CAC setting on TOPAZ
  drm/amd/display: Update DCN302 SR Exit Latency
  drm/amdgpu: enable ras eeprom on aldebaran
  drm/amdgpu: RAS harvest on driver load
  drm/amdgpu: add ras aldebaran ras eeprom driver
  drm/amd/pm: increase time out value when sending msg to SMU
  drm/amdgpu: add DMUB outbox event IRQ source define/complete/debug flag
  drm/amd/pm: add the callback to get vbios bootup values for vangogh
  drm/radeon: Fix size overflow
  drm/amdgpu: Fix size overflow
  drm/amdgpu: move mmhub ras_func init to ip specific file
  ...

1 files changed, 43 insertions, 8 deletions

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index dda60051854b..dd9ed000ad4c 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -53,6 +53,45 @@ void __drm_crtc_commit_free(struct kref *kref)
 EXPORT_SYMBOL(__drm_crtc_commit_free);
 
 /**
+ * drm_crtc_commit_wait - Waits for a commit to complete
+ * @commit: &drm_crtc_commit to wait for
+ *
+ * Waits for a given &drm_crtc_commit to be programmed into the
+ * hardware and flipped to.
+ *
+ * Returns:
+ *
+ * 0 on success, a negative error code otherwise.
+ */
+int drm_crtc_commit_wait(struct drm_crtc_commit *commit)
+{
+	unsigned long timeout = 10 * HZ;
+	int ret;
+
+	if (!commit)
+		return 0;
+
+	ret = wait_for_completion_timeout(&commit->hw_done, timeout);
+	if (!ret) {
+		DRM_ERROR("hw_done timed out\n");
+		return -ETIMEDOUT;
+	}
+
+	/*
+	 * Currently no support for overwriting flips, hence
+	 * stall for previous one to execute completely.
+	 */
+	ret = wait_for_completion_timeout(&commit->flip_done, timeout);
+	if (!ret) {
+		DRM_ERROR("flip_done timed out\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_crtc_commit_wait);
+
+/**
  * drm_atomic_state_default_release -
  * release memory initialized by drm_atomic_state_init
  * @state: atomic state
@@ -578,13 +617,9 @@ static int drm_atomic_plane_check(const struct drm_plane_state *old_plane_state,
 	ret = drm_plane_check_pixel_format(plane, fb->format->format,
 					   fb->modifier);
 	if (ret) {
-		struct drm_format_name_buf format_name;
-
-		DRM_DEBUG_ATOMIC("[PLANE:%d:%s] invalid pixel format %s, modifier 0x%llx\n",
+		DRM_DEBUG_ATOMIC("[PLANE:%d:%s] invalid pixel format %p4cc, modifier 0x%llx\n",
 				 plane->base.id, plane->name,
-				 drm_get_format_name(fb->format->format,
-						     &format_name),
-				 fb->modifier);
+				 &fb->format->format, fb->modifier);
 		return ret;
 	}
 
@@ -1148,7 +1183,7 @@ EXPORT_SYMBOL(drm_atomic_add_encoder_bridges);
  * This function walks the current configuration and adds all connectors
  * currently using @crtc to the atomic configuration @state. Note that this
  * function must acquire the connection mutex. This can potentially cause
- * unneeded seralization if the update is just for the planes on one CRTC. Hence
+ * unneeded serialization if the update is just for the planes on one CRTC. Hence
  * drivers and helpers should only call this when really needed (e.g. when a
  * full modeset needs to happen due to some change).
  *
@@ -1213,7 +1248,7 @@ EXPORT_SYMBOL(drm_atomic_add_affected_connectors);
  *
  * Since acquiring a plane state will always also acquire the w/w mutex of the
  * current CRTC for that plane (if there is any) adding all the plane states for
- * a CRTC will not reduce parallism of atomic updates.
+ * a CRTC will not reduce parallelism of atomic updates.
  *
  * Returns:
  * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK