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| author | Alex Sierra <[email protected]> | 2019-12-17 22:57:30 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2020-01-16 18:33:16 +0000 |
| commit | a269e44989f3e77fb2ebfb995b8d501924ed07e2 (patch) | |
| tree | b9d3d82cec052d8b7599a5cd1e39c8cc4446a208 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | |
| parent | drm/amdgpu/debugfs: properly handle runtime pm (diff) | |
| download | kernel-a269e44989f3e77fb2ebfb995b8d501924ed07e2.tar.gz kernel-a269e44989f3e77fb2ebfb995b8d501924ed07e2.zip | |
drm/amdgpu: Avoid reclaim fs while eviction lock
[Why]
Avoid reclaim filesystem while eviction lock is held called from
MMU notifier.
[How]
Setting PF_MEMALLOC_NOFS flags while eviction mutex is locked.
Using memalloc_nofs_save / memalloc_nofs_restore API.
Signed-off-by: Alex Sierra <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index fade4f45320c..b4640ab38c95 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -30,6 +30,7 @@ #include <drm/gpu_scheduler.h> #include <drm/drm_file.h> #include <drm/ttm/ttm_bo_driver.h> +#include <linux/sched/mm.h> #include "amdgpu_sync.h" #include "amdgpu_ring.h" @@ -239,9 +240,12 @@ struct amdgpu_vm { /* tree of virtual addresses mapped */ struct rb_root_cached va; - /* Lock to prevent eviction while we are updating page tables */ + /* Lock to prevent eviction while we are updating page tables + * use vm_eviction_lock/unlock(vm) + */ struct mutex eviction_lock; bool evicting; + unsigned int saved_flags; /* BOs who needs a validation */ struct list_head evicted; |