diff options
| author | Sinclair Yeh <syeh@vmware.com> | 2017-08-29 18:55:09 +0200 |
|---|---|---|
| committer | Sinclair Yeh <syeh@vmware.com> | 2017-08-29 23:19:03 +0200 |
| commit | 021aba761f2a6c12158afb9993524c300c01fae2 (patch) | |
| tree | 2e7145ed2d5055abbf3bdd18db273d49000445d4 /drivers/gpu/drm/vmwgfx | |
| parent | cc4a41fe5541a73019a864883297bd5043aa6d98 (diff) | |
| download | linux-stable-021aba761f2a6c12158afb9993524c300c01fae2.tar.gz linux-stable-021aba761f2a6c12158afb9993524c300c01fae2.tar.bz2 linux-stable-021aba761f2a6c12158afb9993524c300c01fae2.zip | |
drm/vmwgfx: Fix F26 Wayland screen update issue
vmwgfx currently cannot support non-blocking commit because when
vmw_*_crtc_page_flip is called, drm_atomic_nonblocking_commit()
schedules the update on a thread. This means vmw_*_crtc_page_flip
cannot rely on the new surface being bound before the subsequent
dirty and flush operations happen.
Cc: <stable@vger.kernel.org> # 4.12.x
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 61e06f0e8cd3..625ba24f143f 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -1567,10 +1567,34 @@ vmw_kms_atomic_check_modeset(struct drm_device *dev, } +/** + * vmw_kms_atomic_commit - Perform an atomic state commit + * + * @dev: DRM device + * @state: the driver state object + * @nonblock: Whether nonblocking behaviour is requested + * + * This is a simple wrapper around drm_atomic_helper_commit() for + * us to clear the nonblocking value. + * + * Nonblocking commits currently cause synchronization issues + * for vmwgfx. + * + * RETURNS + * Zero for success or negative error code on failure. + */ +int vmw_kms_atomic_commit(struct drm_device *dev, + struct drm_atomic_state *state, + bool nonblock) +{ + return drm_atomic_helper_commit(dev, state, false); +} + + static const struct drm_mode_config_funcs vmw_kms_funcs = { .fb_create = vmw_kms_fb_create, .atomic_check = vmw_kms_atomic_check_modeset, - .atomic_commit = drm_atomic_helper_commit, + .atomic_commit = vmw_kms_atomic_commit, }; static int vmw_kms_generic_present(struct vmw_private *dev_priv, |