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drm/radeon: split page flip and pending callback

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Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2014-05-27 16:49:20 +02:00
committed by Alex Deucher
parent 75f36d8619
commit 157fa14dc4
8 changed files with 88 additions and 15 deletions
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drivers/gpu/drm/radeon/evergreen.c
+16 -2
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@@ -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 */