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| author |   Andrey Grodzovsky <andrey.grodzovsky@amd.com> | 2021-05-17 10:38:51 -0400 |
|---|---|---|
| committer | Andrey Grodzovsky <andrey.grodzovsky@amd.com> | 2021-05-19 23:50:27 -0400 |
| commit | d10d0daa207276aff3b740d1ea9b3f58a63256e7 (patch) | |
| tree | b3838ca306dfb4161c3d8cc26e7812f4abf9c780 /drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | |
| parent | drm/amdgpu: Add early fini callback (diff) | |
| download | linux-dev-d10d0daa207276aff3b740d1ea9b3f58a63256e7.tar.xz linux-dev-d10d0daa207276aff3b740d1ea9b3f58a63256e7.zip | |
drm/amdgpu: Handle IOMMU enabled case.
Problem:
Handle all DMA IOMMU group related dependencies before the
group is removed. Those manifest themself in that when IOMMU
enabled DMA map/unmap is dependent on the presence of IOMMU
group the device belongs to but, this group is released once
the device is removed from PCI topology.
Fix:
Expedite all such unmap operations to pci remove driver callback.
v5: Drop IOMMU notifier and switch to lockless call to ttm_tt_unpopulate
v6: Drop the BO unamp list
v7:
Drop amdgpu_gart_fini
In amdgpu_ih_ring_fini do uncinditional check (!ih->ring)
to avoid freeing uniniitalized rings.
Call amdgpu_ih_ring_fini unconditionally.
v8: Add deatiled explanation
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210517143851.475058-1-andrey.grodzovsky@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 455bb91060d0..2bb001b3f140 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -1602,7 +1602,6 @@ static int gmc_v9_0_sw_fini(void *handle) amdgpu_gart_table_vram_free(adev); amdgpu_bo_unref(&adev->gmc.pdb0_bo); amdgpu_bo_fini(adev); - amdgpu_gart_fini(adev); return 0; } |