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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2019-09-06 14:20:55 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2019-09-09 12:52:21 +0200 |
| commit | f3309105b87956bdadfcc35bf0cefc463f427c9b (patch) | |
| tree | d9ad0521fed52a438f9d31a1b77897314cdc9e68 /drivers | |
| parent | drm/vram: Acquire lock only once per call to vmap()/vunmap() (diff) | |
| download | linux-f3309105b87956bdadfcc35bf0cefc463f427c9b.tar.xz linux-f3309105b87956bdadfcc35bf0cefc463f427c9b.zip | |
drm/vram: Add infrastructure for move_notify()
This patch prepares VRAM helpers for lazy unmapping of buffer objects.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reported-and-tested-by: Davidlohr Bueso <dbueso@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20190906122056.32018-4-tzimmermann@suse.de
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/drm_vram_mm_helper.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_vram_mm_helper.c b/drivers/gpu/drm/drm_vram_mm_helper.c index c911781d6728..31984690d5f3 100644 --- a/drivers/gpu/drm/drm_vram_mm_helper.c +++ b/drivers/gpu/drm/drm_vram_mm_helper.c @@ -98,6 +98,17 @@ static int bo_driver_verify_access(struct ttm_buffer_object *bo, return vmm->funcs->verify_access(bo, filp); } +static void bo_driver_move_notify(struct ttm_buffer_object *bo, + bool evict, + struct ttm_mem_reg *new_mem) +{ + struct drm_vram_mm *vmm = drm_vram_mm_of_bdev(bo->bdev); + + if (!vmm->funcs || !vmm->funcs->move_notify) + return; + vmm->funcs->move_notify(bo, evict, new_mem); +} + static int bo_driver_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) { @@ -140,6 +151,7 @@ static struct ttm_bo_driver bo_driver = { .eviction_valuable = ttm_bo_eviction_valuable, .evict_flags = bo_driver_evict_flags, .verify_access = bo_driver_verify_access, + .move_notify = bo_driver_move_notify, .io_mem_reserve = bo_driver_io_mem_reserve, .io_mem_free = bo_driver_io_mem_free, }; |