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| author | Eric Huang <jinhuieric.huang@amd.com> | 2021-05-29 18:34:20 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-01 22:55:39 -0400 |
| commit | f0e0687cf6d91aa99787dcefd7214ca782da51a7 (patch) | |
| tree | 915d1620e23ff1726a896a21c7160c7a38ecd425 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | ba809007f216ede9b25624d0420b6227b285e497 (diff) | |
| download | linux-f0e0687cf6d91aa99787dcefd7214ca782da51a7.tar.gz | |
drm/amdgpu: Fix a bug on flag table_freed
table_freed will be always true when mapping a memory with size bigger than 2MB. The problem is page table's entries are always existed, but existing mapping depends on page talbe's bo, so using a check of page table's bo existed will resolve the issue. Signed-off-by: Eric Huang <jinhuieric.huang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index c29fad97b63a..1923f035713a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1619,9 +1619,12 @@ static int amdgpu_vm_update_ptes(struct amdgpu_vm_update_params *params, * completely covered by the range and so potentially still in use. */ while (cursor.pfn < frag_start) { - amdgpu_vm_free_pts(adev, params->vm, &cursor); + /* Make sure previous mapping is freed */ + if (cursor.entry->base.bo) { + params->table_freed = true; + amdgpu_vm_free_pts(adev, params->vm, &cursor); + } amdgpu_vm_pt_next(adev, &cursor); - params->table_freed = true; } } else if (frag >= shift) { |