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| author | Chunming Zhou <david1.zhou@amd.com> | 2019-01-10 17:56:39 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-01-25 16:15:34 -0500 |
| commit | ae6d343541bb75958e9535d056adaf4ff6a66d6a (patch) | |
| tree | 686553f24f4646eba7c51ba82d524dc97d4feb5c | |
| parent | 466bcb75b0791ba301817cdadeed20398f2224fe (diff) | |
| download | lwn-ae6d343541bb75958e9535d056adaf4ff6a66d6a.tar.gz lwn-ae6d343541bb75958e9535d056adaf4ff6a66d6a.zip | |
drm/ttm: add lru notify to bo driver v2
allow driver do somethings when lru changed.
v2:
address Michel's comments.
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 11 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 9 |
2 files changed, 16 insertions, 4 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 0ec08394e17a..de088c8070fb 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -198,19 +198,22 @@ static void ttm_bo_ref_bug(struct kref *list_kref) void ttm_bo_del_from_lru(struct ttm_buffer_object *bo) { + struct ttm_bo_device *bdev = bo->bdev; + bool notify = false; + if (!list_empty(&bo->swap)) { list_del_init(&bo->swap); kref_put(&bo->list_kref, ttm_bo_ref_bug); + notify = true; } if (!list_empty(&bo->lru)) { list_del_init(&bo->lru); kref_put(&bo->list_kref, ttm_bo_ref_bug); + notify = true; } - /* - * TODO: Add a driver hook to delete from - * driver-specific LRU's here. - */ + if (notify && bdev->driver->del_from_lru_notify) + bdev->driver->del_from_lru_notify(bo); } void ttm_bo_del_sub_from_lru(struct ttm_buffer_object *bo) diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 1021106438b2..15829b24277c 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -381,6 +381,15 @@ struct ttm_bo_driver { */ int (*access_memory)(struct ttm_buffer_object *bo, unsigned long offset, void *buf, int len, int write); + + /** + * struct ttm_bo_driver member del_from_lru_notify + * + * @bo: the buffer object deleted from lru + * + * notify driver that a BO was deleted from LRU. + */ + void (*del_from_lru_notify)(struct ttm_buffer_object *bo); }; /** |