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drm/ttm: make eviction decision a driver callback v2

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This way the driver can decide if it is valuable to evict a BO or not.

The current implementation is added as default to all existing drivers.

v2: fix some typos found during internal testing

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2016-08-30 17:26:04 +02:00
committed by Alex Deucher
parent 585ffd6544
commit a2ab19fed9
13 changed files with 57 additions and 13 deletions
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13
include/drm/ttm/ttm_bo_api.h
View File

@@ -47,6 +47,8 @@ struct drm_mm_node;
struct ttm_placement;
struct ttm_place;
/**
* struct ttm_bus_placement
*
@@ -395,6 +397,17 @@ extern int ttm_bo_lock_delayed_workqueue(struct ttm_bo_device *bdev);
extern void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev,
int resched);
/**
* ttm_bo_eviction_valuable
*
* @bo: The buffer object to evict
* @place: the placement we need to make room for
*
* Check if it is valuable to evict the BO to make room for the given placement.
*/
bool ttm_bo_eviction_valuable(struct ttm_buffer_object *bo,
const struct ttm_place *place);
/**
* ttm_bo_synccpu_write_grab
*

12
include/drm/ttm/ttm_bo_driver.h
View File

@@ -374,6 +374,18 @@ struct ttm_bo_driver {
int (*invalidate_caches)(struct ttm_bo_device *bdev, uint32_t flags);
int (*init_mem_type)(struct ttm_bo_device *bdev, uint32_t type,
struct ttm_mem_type_manager *man);
/**
* struct ttm_bo_driver member eviction_valuable
*
* @bo: the buffer object to be evicted
* @place: placement we need room for
*
* Check with the driver if it is valuable to evict a BO to make room
* for a certain placement.
*/
bool (*eviction_valuable)(struct ttm_buffer_object *bo,
const struct ttm_place *place);
/**
* struct ttm_bo_driver member evict_flags:
*