diff options
| author | Thomas Hellstrom <thellstrom@vmware.com> | 2014-02-27 15:34:51 +0400 |
|---|---|---|
| committer | Thomas Hellstrom <thellstrom@vmware.com> | 2014-03-28 17:19:02 +0400 |
| commit | 294adf7d86226c0e6abeb4475159b03aa315d56f (patch) | |
| tree | 82013a33770470723552a04a5893904917281515 /drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | |
| parent | 4beb6d9fa6a74c189884be4913cfdd24fc8758ac (diff) | |
| download | linux-294adf7d86226c0e6abeb4475159b03aa315d56f.tar.xz | |
drm/vmwgfx: Use a per-device semaphore for reservation protection
Don't use a per-master semaphore (ttm lock) for reservation protection, but
rather a per-device semaphore. This is needed since clients connecting using
render nodes aren't master aware.
The ttm lock used should probably be replaced with a reader-write semaphore
once the function down_xx_interruptible() is available.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_drv.h')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 07831554dad7..8c6b71f6cac9 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -487,6 +487,11 @@ struct vmw_private { uint32_t num_3d_resources; /* + * Replace this with an rwsem as soon as we have down_xx_interruptible() + */ + struct ttm_lock reservation_sem; + + /* * Query processing. These members * are protected by the cmdbuf mutex. */ |