Merge tag 'drm-fixes-2025-03-21' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Just the usual spread of a bunch for amdgpu, and small changes to
  others.

  scheduler:
   - fix fence reference leak

  xe:
   - Fix for an error if exporting a dma-buf multiple time

  amdgpu:
   - Fix video caps limits on several asics
   - SMU 14.x fixes
   - GC 12 fixes
   - eDP fixes
   - DMUB fix

  amdkfd:
   - GC 12 trap handler fix
   - GC 7/8 queue validation fix

  radeon:
   - VCE IB parsing fix

  v3d:
   - fix job error handling bugs

  qaic:
   - fix two integer overflows

  host1x:
   - fix NULL domain handling"

* tag 'drm-fixes-2025-03-21' of https://gitlab.freedesktop.org/drm/kernel: (21 commits)
  drm/xe: Fix exporting xe buffers multiple times
  gpu: host1x: Do not assume that a NULL domain means no DMA IOMMU
  drm/amdgpu/pm: Handle SCLK offset correctly in overdrive for smu 14.0.2
  drm/amd/display: Fix incorrect fw_state address in dmub_srv
  drm/amd/display: Use HW lock mgr for PSR1 when only one eDP
  drm/amd/display: Fix message for support_edp0_on_dp1
  drm/amdkfd: Fix user queue validation on Gfx7/8
  drm/amdgpu: Restore uncached behaviour on GFX12
  drm/amdgpu/gfx12: correct cleanup of 'me' field with gfx_v12_0_me_fini()
  drm/amdkfd: Fix instruction hazard in gfx12 trap handler
  drm/amdgpu/pm: wire up hwmon fan speed for smu 14.0.2
  drm/amd/pm: add unique_id for gfx12
  drm/amdgpu: Remove JPEG from vega and carrizo video caps
  drm/amdgpu: Fix JPEG video caps max size for navi1x and raven
  drm/amdgpu: Fix MPEG2, MPEG4 and VC1 video caps max size
  drm/radeon: fix uninitialized size issue in radeon_vce_cs_parse()
  accel/qaic: Fix integer overflow in qaic_validate_req()
  accel/qaic: Fix possible data corruption in BOs > 2G
  drm/v3d: Set job pointer to NULL when the job's fence has an error
  drm/v3d: Don't run jobs that have errors flagged in its fence
  ...

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 46cae925b095..1f93e5e276c0 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -361,6 +361,10 @@ static bool host1x_wants_iommu(struct host1x *host1x)
 	return true;
 }
 
+/*
+ * Returns ERR_PTR on failure, NULL if the translation is IDENTITY, otherwise a
+ * valid paging domain.
+ */
 static struct iommu_domain *host1x_iommu_attach(struct host1x *host)
 {
 	struct iommu_domain *domain = iommu_get_domain_for_dev(host->dev);
@@ -385,6 +389,8 @@ static struct iommu_domain *host1x_iommu_attach(struct host1x *host)
 	 * Similarly, if host1x is already attached to an IOMMU (via the DMA
 	 * API), don't try to attach again.
 	 */
+	if (domain && domain->type == IOMMU_DOMAIN_IDENTITY)
+		domain = NULL;
 	if (!host1x_wants_iommu(host) || domain)
 		return domain;