diff options
| author | Philip Yang <Philip.Yang@amd.com> | 2021-08-15 21:42:33 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-08-24 22:36:50 +0300 |
| commit | ff891a2e6431f79c239ab0c5bc05834c0235821c (patch) | |
| tree | f99afb9cc385479ab414090b06dd0f30e1c88ba9 /drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | |
| parent | f24d991bb9641d9467d2a0096239c58bf3d2b388 (diff) | |
| download | linux-ff891a2e6431f79c239ab0c5bc05834c0235821c.tar.xz | |
drm/amdkfd: check access permisson to restore retry fault
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 3 |
1 files changed, 2 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 085fab45245d..d90c16a6b2b8 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -507,6 +507,7 @@ static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev, struct amdgpu_iv_entry *entry) { bool retry_fault = !!(entry->src_data[1] & 0x80); + bool write_fault = !!(entry->src_data[1] & 0x20); uint32_t status = 0, cid = 0, rw = 0; struct amdgpu_task_info task_info; struct amdgpu_vmhub *hub; @@ -537,7 +538,7 @@ static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev, /* Try to handle the recoverable page faults by filling page * tables */ - if (amdgpu_vm_handle_fault(adev, entry->pasid, addr)) + if (amdgpu_vm_handle_fault(adev, entry->pasid, addr, write_fault)) return 1; } |