drm/amdgpu: have bos for PDs/PTS cpu accessible when kfd uses cpu to update vm

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When kfd uses cpu to update vm iterates all current PDs/PTs bos, adds
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED flag and kmap them to kernel virtual
address space before kfd updates the vm that was created by gfx.

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

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This commit is contained in:

Xiaogang Chen 2023-06-30 11:38:35 -05:00 • committed by Alex Deucher

parent 9041b53a59

commit eb58ad143d

4 changed files with 35 additions and 7 deletions

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11

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

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2

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

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1

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

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28

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

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