Merge tag 'amd-drm-next-6.15-2025-03-07' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amdgpu:
- Fix spelling typos
- RAS updates
- VCN 5.0.1 updates
- SubVP fixes
- DCN 4.0.1 fixes
- MSO DPCD fixes
- DIO encoder refactor
- PCON fixes
- Misc cleanups
- DMCUB fixes
- USB4 DP fixes
- DM cleanups
- Backlight cleanups and fixes
- Support platform backlight curves
- Misc code cleanups
- SMU 14 fixes
- JPEG 4.0.3 reset updates
- SR-IOV fixes
- SVM fixes
- GC 12 DCC fixes
- DC DCE 6.x fix
- Hiberation fix

amdkfd:
- Fix possible NULL pointer in queue validation
- Remove unnecessary CP domain validation
- SDMA queue reset support
- Add per process flags

radeon:
- Fix spelling typos
- RS400 hyperZ fix

UAPI:
- Add KFD per process flags for setting precision
  Proposed user space: https://github.com/ROCm/ROCR-Runtime/commit/2a64fa5e06e80e0af36df4ce0c76ae52eeec0a9d

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250307211051.1880472-1-alexander.deucher@amd.com

1 files changed, 23 insertions, 15 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 96f4b8904e9a..80cd6f5273db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1295,28 +1295,36 @@ void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
 	if (abo->kfd_bo)
 		amdgpu_amdkfd_release_notify(abo);
 
-	/* We only remove the fence if the resv has individualized. */
-	WARN_ON_ONCE(bo->type == ttm_bo_type_kernel
-			&& bo->base.resv != &bo->base._resv);
-	if (bo->base.resv == &bo->base._resv)
-		amdgpu_amdkfd_remove_fence_on_pt_pd_bos(abo);
+	/*
+	 * We lock the private dma_resv object here and since the BO is about to
+	 * be released nobody else should have a pointer to it.
+	 * So when this locking here fails something is wrong with the reference
+	 * counting.
+	 */
+	if (WARN_ON_ONCE(!dma_resv_trylock(&bo->base._resv)))
+		return;
+
+	amdgpu_amdkfd_remove_all_eviction_fences(abo);
 
 	if (!bo->resource || bo->resource->mem_type != TTM_PL_VRAM ||
 	    !(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE) ||
 	    adev->in_suspend || drm_dev_is_unplugged(adev_to_drm(adev)))
-		return;
+		goto out;
 
-	if (WARN_ON_ONCE(!dma_resv_trylock(bo->base.resv)))
-		return;
+	r = dma_resv_reserve_fences(&bo->base._resv, 1);
+	if (r)
+		goto out;
 
-	r = amdgpu_fill_buffer(abo, 0, bo->base.resv, &fence, true);
-	if (!WARN_ON(r)) {
-		amdgpu_vram_mgr_set_cleared(bo->resource);
-		amdgpu_bo_fence(abo, fence, false);
-		dma_fence_put(fence);
-	}
+	r = amdgpu_fill_buffer(abo, 0, &bo->base._resv, &fence, true);
+	if (WARN_ON(r))
+		goto out;
+
+	amdgpu_vram_mgr_set_cleared(bo->resource);
+	dma_resv_add_fence(&bo->base._resv, fence, DMA_RESV_USAGE_KERNEL);
+	dma_fence_put(fence);
 
-	dma_resv_unlock(bo->base.resv);
+out:
+	dma_resv_unlock(&bo->base._resv);
 }
 
 /**