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| author | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2011-12-17 23:00:49 +0100 |
|---|---|---|
| committer | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2011-12-17 23:00:49 +0100 |
| commit | a4581b35e1bc80becf240238bc787a5ec2727db0 (patch) | |
| tree | 34cbf36101639403a766e74deb36e7015d871b39 /drivers/gpu/drm/radeon/evergreen.c | |
| parent | video: s3c2410: fix checkpatch error and warnings (diff) | |
| parent | Linux 3.2-rc6 (diff) | |
| download | linux-a4581b35e1bc80becf240238bc787a5ec2727db0.tar.xz linux-a4581b35e1bc80becf240238bc787a5ec2727db0.zip | |
Merge commit 'v3.2-rc6' into fbdev-next
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreen.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 1d603a3335db..5e00d1670aa9 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -82,6 +82,7 @@ u32 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); + int i; /* Lock the graphics update lock */ tmp |= EVERGREEN_GRPH_UPDATE_LOCK; @@ -99,7 +100,11 @@ u32 evergreen_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base) (u32)crtc_base); /* Wait for update_pending to go high. */ - while (!(RREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset) & EVERGREEN_GRPH_SURFACE_UPDATE_PENDING)); + for (i = 0; i < rdev->usec_timeout; i++) { + if (RREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset) & EVERGREEN_GRPH_SURFACE_UPDATE_PENDING) + break; + udelay(1); + } DRM_DEBUG("Update pending now high. Unlocking vupdate_lock.\n"); /* Unlock the lock, so double-buffering can take place inside vblank */ |