drm/amdgpu: fix concurrent VM flushes on Vega/Navi v2

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Starting with Vega the hardware supports concurrent flushes
of VMID which can be used to implement per process VMID
allocation.

But concurrent flushes are mutual exclusive with back to
back VMID allocations, fix this to avoid a VMID used in
two ways at the same time.

v2: don't set ring to NULL

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Tested-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Christian König 2021-04-22 13:11:39 +02:00 • committed by Alex Deucher

parent 42daecfc20

commit 3dc7216c1d

3 changed files with 18 additions and 8 deletions

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19

drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c

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6

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

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1

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h

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