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authorDave Airlie <airlied@redhat.com>2015-11-05 10:57:25 +1000
committerDave Airlie <airlied@redhat.com>2015-11-05 10:57:25 +1000
commit793423ffcb229ae5654b382a1356906f81da2018 (patch)
treec95dcf05246a9c44d9ce15f4d9fb1c4012598fe5 /drivers/gpu/drm/radeon
parentbf248ca1f5c7ba1e535ba4bd517a15a1ae965c69 (diff)
parenta95e264254dca5b6bfb331d5902930d0787bd7e1 (diff)
downloadblackbird-op-linux-793423ffcb229ae5654b382a1356906f81da2018.tar.gz
blackbird-op-linux-793423ffcb229ae5654b382a1356906f81da2018.zip
Merge branch 'drm-next-4.4' of git://people.freedesktop.org/~agd5f/linux into drm-next
- Updated register headers for GFX 8.1 for Stoney - Add some new CZ revisions - minor pageflip optimizations - Fencing clean up - Warning fix - More fence cleanup - oops fix - Fiji fixes * 'drm-next-4.4' of git://people.freedesktop.org/~agd5f/linux: (29 commits) drm/amdgpu: group together common fence implementation drm/amdgpu: remove AMDGPU_FENCE_OWNER_MOVE drm/amdgpu: remove now unused fence functions drm/amdgpu: fix fence fallback check drm/amdgpu: fix stoping the scheduler timeout drm/amdgpu: cleanup on error in amdgpu_cs_ioctl() drm/amdgpu: update Fiji's Golden setting drm/amdgpu: update Fiji's rev id drm/amdgpu: extract common code in vi_common_early_init drm/amd/scheduler: don't oops on failure to load drm/amdgpu: don't oops on failure to load (v2) drm/amdgpu: don't VT switch on suspend drm/amdgpu: Make amdgpu_mn functions inline drm/amdgpu: remove amdgpu_fence_ref/unref drm/amdgpu: use common fence for sync drm/amdgpu: use the new fence_is_later drm/amdgpu: use common fences for VMID management v2 drm/amdgpu: move ring_from_fence to common code drm/amdgpu: switch to common fence_wait_any_timeout v2 drm/amdgpu: remove unneeded fence functions ...
Diffstat (limited to 'drivers/gpu/drm/radeon')
-rw-r--r--drivers/gpu/drm/radeon/evergreen.c32
1 files changed, 4 insertions, 28 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 0acde1949c18..7f33767d7ed6 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1404,44 +1404,20 @@ void dce4_wait_for_vblank(struct radeon_device *rdev, int crtc)
* @crtc_id: crtc to cleanup pageflip on
* @crtc_base: new address of the crtc (GPU MC address)
*
- * Does the actual pageflip (evergreen+).
- * 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.
+ * Triggers the actual pageflip by updating the primary
+ * surface base address (evergreen+).
*/
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);
- int i;
-
- /* Lock the graphics update lock */
- tmp |= EVERGREEN_GRPH_UPDATE_LOCK;
- WREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
/* update the scanout addresses */
- WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
- upper_32_bits(crtc_base));
- WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
- (u32)crtc_base);
-
WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
upper_32_bits(crtc_base));
WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
(u32)crtc_base);
-
- /* Wait for update_pending to go high. */
- 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 */
- tmp &= ~EVERGREEN_GRPH_UPDATE_LOCK;
- WREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
+ /* post the write */
+ RREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset);
}
/**
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