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drm/ttm: make TTM responsible for cleaning system only.

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Drivers should all be cleaning up their memory managers
themselves now, so let the core just clean the system one up.

Remove the legacy cleaning interface.

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200804025632.3868079-36-airlied@gmail.com
This commit is contained in:
Dave Airlie
2020-08-04 12:56:08 +10:00
parent 085097e5ae
commit 0cf0a79842
3 changed files with 4 additions and 88 deletions
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28
include/drm/ttm/ttm_bo_api.h
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@@ -546,34 +546,6 @@ void ttm_mem_type_manager_init(struct ttm_bo_device *bdev,
struct ttm_mem_type_manager *man,
unsigned long p_size);
/**
* ttm_bo_clean_mm
*
* @bdev: Pointer to a ttm_bo_device struct.
* @mem_type: The memory type.
*
* Take down a manager for a given memory type after first walking
* the LRU list to evict any buffers left alive.
*
* Normally, this function is part of lastclose() or unload(), and at that
* point there shouldn't be any buffers left created by user-space, since
* there should've been removed by the file descriptor release() method.
* However, before this function is run, make sure to signal all sync objects,
* and verify that the delayed delete queue is empty. The driver must also
* make sure that there are no NO_EVICT buffers present in this memory type
* when the call is made.
*
* If this function is part of a VT switch, the caller must make sure that
* there are no appications currently validating buffers before this
* function is called. The caller can do that by first taking the
* struct ttm_bo_device::ttm_lock in write mode.
*
* Returns:
* -EINVAL: invalid or uninitialized memory type.
* -EBUSY: There are still buffers left in this memory type.
*/
int ttm_bo_clean_mm(struct ttm_bo_device *bdev, unsigned mem_type);
/**
* ttm_bo_evict_mm
*