diff options
| author | Christian König <christian.koenig@amd.com> | 2017-01-10 14:08:28 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-01-27 12:20:33 -0500 |
| commit | cf6c467d67d319e239aec57d7ba31cb9946f29bf (patch) | |
| tree | 8e6ab6e828cda2485ec80cd05b70777142725ab2 /include/drm | |
| parent | 2ee7fc92cfd327fe41377f64a7f04ddc30c851e7 (diff) | |
| download | lwn-cf6c467d67d319e239aec57d7ba31cb9946f29bf.tar.gz lwn-cf6c467d67d319e239aec57d7ba31cb9946f29bf.zip | |
drm/ttm: add BO priorities for the LRUs
This way the driver can specify a priority for a BO which has the effect that
a BO is only evicted when all other BOs with a lower priority are evicted
first.
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Roger.He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/ttm/ttm_bo_api.h | 2 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 6 |
2 files changed, 6 insertions, 2 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 652e45be97c8..c356df40ac49 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -215,6 +215,8 @@ struct ttm_buffer_object { struct drm_vma_offset_node vma_node; + unsigned priority; + /** * Special members that are protected by the reserve lock * and the bo::lock when written to. Can be read with diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 8b4bec7bd57b..c8407e737542 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -42,6 +42,8 @@ #include <linux/spinlock.h> #include <linux/reservation.h> +#define TTM_MAX_BO_PRIORITY 16 + struct ttm_backend_func { /** * struct ttm_backend_func member bind @@ -298,7 +300,7 @@ struct ttm_mem_type_manager { * Protected by the global->lru_lock. */ - struct list_head lru; + struct list_head lru[TTM_MAX_BO_PRIORITY]; /* * Protected by @move_lock. @@ -518,7 +520,7 @@ struct ttm_bo_global { /** * Protected by the lru_lock. */ - struct list_head swap_lru; + struct list_head swap_lru[TTM_MAX_BO_PRIORITY]; /** * Internal protection. |