diff options
| author | Dennis Li <Dennis.Li@amd.com> | 2021-02-22 18:22:57 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-02-26 17:00:56 -0500 |
| commit | f89b881c81d9a6481fc17b46b351ca38f5dd6f3a (patch) | |
| tree | 958d2078b6fc3da938eba6c81ae7b300b2a2e61e /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | |
| parent | 6c65a582ee7616ee6b86eb954b0daac959dc5cc3 (diff) | |
drm/amdgpu: reserve backup pages for bad page retirment
To ensure user has a constant of VRAM accessible in run-time, driver
reserves limit backup pages when init, and return ones when bad pages
retired, to keep no change of unused memory size.
v2: refine codes to calculate badpags threshold
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h index a4ca34a423b7..1eee65494a96 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h @@ -48,6 +48,8 @@ struct amdgpu_vram_mgr { spinlock_t lock; struct list_head reservations_pending; struct list_head reserved_pages; + struct list_head backup_pages; + uint32_t num_backup_pages; atomic64_t usage; atomic64_t vis_usage; }; @@ -123,6 +125,8 @@ uint64_t amdgpu_vram_mgr_usage(struct ttm_resource_manager *man); uint64_t amdgpu_vram_mgr_vis_usage(struct ttm_resource_manager *man); int amdgpu_vram_mgr_reserve_range(struct ttm_resource_manager *man, uint64_t start, uint64_t size); +int amdgpu_vram_mgr_reserve_backup_pages(struct ttm_resource_manager *man, + uint32_t num_pages); int amdgpu_vram_mgr_query_page_status(struct ttm_resource_manager *man, uint64_t start); |