diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-02-23 17:53:37 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-02-27 14:46:13 +0000 |
| commit | 3ae19b750bdc09ce233e1504348320141593ffda (patch) | |
| tree | 91698edc128672983f92e0c066f0b18ae1d72f72 /drivers/gpu/drm/radeon/r100.c | |
| parent | e5bcf23443740f741df8e5461ccdad0f10d1a75b (diff) | |
drm/radeon/kms: add wait_for_vblank asic callback
Required for future functionality.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/r100.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r100.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 99bb0064935..65fe8e092a1 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -65,6 +65,40 @@ MODULE_FIRMWARE(FIRMWARE_R520); #include "r100_track.h" +void r100_wait_for_vblank(struct radeon_device *rdev, int crtc) +{ + struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc]; + int i; + + if (radeon_crtc->crtc_id == 0) { + if (RREG32(RADEON_CRTC_GEN_CNTL) & RADEON_CRTC_EN) { + for (i = 0; i < rdev->usec_timeout; i++) { + if (!(RREG32(RADEON_CRTC_STATUS) & RADEON_CRTC_VBLANK_CUR)) + break; + udelay(1); + } + for (i = 0; i < rdev->usec_timeout; i++) { + if (RREG32(RADEON_CRTC_STATUS) & RADEON_CRTC_VBLANK_CUR) + break; + udelay(1); + } + } + } else { + if (RREG32(RADEON_CRTC2_GEN_CNTL) & RADEON_CRTC2_EN) { + for (i = 0; i < rdev->usec_timeout; i++) { + if (!(RREG32(RADEON_CRTC2_STATUS) & RADEON_CRTC2_VBLANK_CUR)) + break; + udelay(1); + } + for (i = 0; i < rdev->usec_timeout; i++) { + if (RREG32(RADEON_CRTC2_STATUS) & RADEON_CRTC2_VBLANK_CUR) + break; + udelay(1); + } + } + } +} + /* This files gather functions specifics to: * r100,rv100,rs100,rv200,rs200,r200,rv250,rs300,rv280 */ |