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/r100.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/r100.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r100.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 840651f33610..52548f7bbb5a 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -152,9 +152,8 @@ void r100_wait_for_vblank(struct radeon_device *rdev, int crtc) * During vblank we take the crtc lock and wait for the update_pending * bit to go high, when it does, we release the lock, and allow the * double buffered update to take place. - * Returns the current update pending status. */ -u32 r100_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base) +void r100_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 = ((u32)crtc_base) | RADEON_CRTC_OFFSET__OFFSET_LOCK; @@ -176,8 +175,24 @@ u32 r100_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base) tmp &= ~RADEON_CRTC_OFFSET__OFFSET_LOCK; WREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset, tmp); +} + +/** + * r100_page_flip_pending - check if page flip is still pending + * + * @rdev: radeon_device pointer + * @crtc_id: crtc to check + * + * Check if the last pagefilp is still pending (r1xx-r4xx). + * Returns the current update pending status. + */ +bool r100_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(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset) & RADEON_CRTC_OFFSET__GUI_TRIG_OFFSET; + return !!(RREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset) & + RADEON_CRTC_OFFSET__GUI_TRIG_OFFSET); } /** |