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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2019-05-21 13:08:29 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2019-05-22 12:43:29 +0200 |
| commit | 81da87f63a1edebcf8cbb811d387e353d9f89c7a (patch) | |
| tree | 9838a67ed18ddb9b4d76dc9feadb9582a0d18843 /drivers/gpu/drm/drm_vram_helper_common.c | |
| parent | 982c0500fd1a8012c31d3c9dd8de285129904656 (diff) | |
| download | linux-stable-81da87f63a1edebcf8cbb811d387e353d9f89c7a.tar.gz linux-stable-81da87f63a1edebcf8cbb811d387e353d9f89c7a.tar.bz2 linux-stable-81da87f63a1edebcf8cbb811d387e353d9f89c7a.zip | |
drm: Replace drm_gem_vram_push_to_system() with kunmap + unpin
The push-to-system function forces a buffer out of video RAM. This decision
should rather be made by the memory manager. By replacing the function with
calls to the kunmap and unpin functions, the buffer's memory becomes available,
but the buffer remains in VRAM until it's evicted by a pin operation.
This patch replaces the remaining instances of drm_gem_vram_push_to_system()
in ast and mgag200, and removes the function from DRM.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20190521110831.20200-2-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_vram_helper_common.c')
| -rw-r--r-- | drivers/gpu/drm/drm_vram_helper_common.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_vram_helper_common.c b/drivers/gpu/drm/drm_vram_helper_common.c index 3b47f7002115..e9c9f9a80ba3 100644 --- a/drivers/gpu/drm/drm_vram_helper_common.c +++ b/drivers/gpu/drm/drm_vram_helper_common.c @@ -79,8 +79,6 @@ * RAM. Call drm_gem_vram_pin() with &DRM_GEM_VRAM_PL_FLAG_VRAM or * &DRM_GEM_VRAM_PL_FLAG_SYSTEM to pin a buffer object in video RAM or system * memory. Call drm_gem_vram_unpin() to release the pinned object afterwards. - * If you have to evict a buffer object from video RAM (e.g., for freeing up - * memory), unpin the buffer and call drm_gem_vram_push_to_system(). * * A buffer object that is pinned in video RAM has a fixed address within that * memory region. Call drm_gem_vram_offset() to retrieve this value. Typically |