drm/amdkfd: check access permisson to restore retry fault

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Check range access permission to restore GPU retry fault, if GPU retry
fault on address which belongs to VMA, and VMA has no read or write
permission requested by GPU, failed to restore the address. The vm fault
event will pass back to user space.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Philip Yang 2021-08-15 14:42:33 -04:00 • committed by Alex Deucher

parent f24d991bb9

commit ff891a2e64

6 changed files with 39 additions and 8 deletions

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5

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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3

drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c

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3

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

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29

drivers/gpu/drm/amd/amdkfd/kfd_svm.c

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5

drivers/gpu/drm/amd/amdkfd/kfd_svm.h

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