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Commit 7359ee63 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu/dce11: update async flip update time 



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: default avatarAlex Deucher <alexander.deucher@amd.com>
parent aff98ba1

drivers/gpu/drm/amd/amdgpu/dce_v11_0.c

+2 −3
Original line number Diff line number Diff line
@@ -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,