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drm/amdgpu/dce11: update async flip update time

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Use UPDATE_IMMEDIATE (update on next data request boundary) rather
than UPDATE_H_RETRACE (update on next line boundary).  The data
request boundary is less than a scanline, so it update will happen
sooner.

Cc: Vitaly Prosyak <vitaly.prosyak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2016-06-22 16:49:22 -04:00
parent aff98ba1fd
commit 7359ee637d
1 changed files with 2 additions and 3 deletions
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5
drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
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@ -307,11 +307,10 @@ static void dce_v11_0_page_flip(struct amdgpu_device *adev,
struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[crtc_id];
u32 tmp;
/* flip at hsync for async, default is vsync */
/* use UPDATE_IMMEDIATE_EN instead for async? */
/* flip immediate for async, default is vsync */
tmp = RREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset);
tmp = REG_SET_FIELD(tmp, GRPH_FLIP_CONTROL,
GRPH_SURFACE_UPDATE_H_RETRACE_EN, async ? 1 : 0);
GRPH_SURFACE_UPDATE_IMMEDIATE_EN, async ? 1 : 0);
WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, tmp);
/* update the scanout addresses */
WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset,