diff options
| author | Christian König <christian.koenig@amd.com> | 2014-05-27 16:49:20 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-06-02 10:25:11 -0400 |
| commit | 157fa14dc4065ce7536473e643c95385d87bd580 (patch) | |
| tree | 5b8dc7b22503c1e8009a9a01b39e54b1ece9bf1a /drivers/gpu/drm/radeon/evergreen.c | |
| parent | 75f36d861957cb05b7889af24c8cd4a789398304 (diff) | |
drm/radeon: split page flip and pending callback
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreen.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index ec31a822083..336f0a56edc 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1313,7 +1313,7 @@ void dce4_wait_for_vblank(struct radeon_device *rdev, int crtc) * double buffered update to take place. * Returns the current update pending status. */ -u32 evergreen_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base) +void evergreen_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base) { struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id]; u32 tmp = RREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset); @@ -1345,9 +1345,23 @@ u32 evergreen_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base) /* Unlock the lock, so double-buffering can take place inside vblank */ tmp &= ~EVERGREEN_GRPH_UPDATE_LOCK; WREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset, tmp); +} + +/** + * evergreen_page_flip_pending - check if page flip is still pending + * + * @rdev: radeon_device pointer + * @crtc_id: crtc to check + * + * Returns the current update pending status. + */ +bool evergreen_page_flip_pending(struct radeon_device *rdev, int crtc_id) +{ + struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id]; /* Return current update_pending status: */ - return RREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset) & EVERGREEN_GRPH_SURFACE_UPDATE_PENDING; + return !!(RREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset) & + EVERGREEN_GRPH_SURFACE_UPDATE_PENDING); } /* get temperature in millidegrees */ |