diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2020-12-11 17:29:40 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-01-18 14:15:20 +0100 |
| commit | ff36baf8075585205ae074096a10254de7d183b9 (patch) | |
| tree | 65d5a586a5759de932053d6607acd0a37f1a9777 /drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | |
| parent | 87969bcd49480508568070fd93d7367f03316aa9 (diff) | |
drm/vmwgfx: Drop svga_lock
This isn't actually protecting anything becuase:
- when running, ttm_resource_manager->use_type is protected through
vmw_private->reservation_semaphore against concurrent execbuf or
well anything else that might evict or reserve buffers
- during suspend/resume there's nothing else running, hence
vmw_pm_freeze and vmw_pm_restore do not need to take the same lock.
- this also holds for the SVGA_REG_ENABLE register write
Hence it is safe to just remove that spinlock.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Cc: VMware Graphics <linux-graphics-maintainer@vmware.com>
Cc: Roland Scheidegger <sroland@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201211162942.3399050-1-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_drv.h')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 4d7fece7f75e..5fa5bcd20cc5 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -584,7 +584,6 @@ struct vmw_private { struct mutex binding_mutex; bool enable_fb; - spinlock_t svga_lock; /** * PM management. |