tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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: Alex Deucher <alexander.deucher@amd.com>
+2
-3
+2
-3
drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
+2
-3
drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
···
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struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[crtc_id];
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u32 tmp;
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-
/* flip at hsync for async, default is vsync */
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-
/* use UPDATE_IMMEDIATE_EN instead for async? */
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+
/* flip immediate for async, default is vsync */
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tmp = RREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset);
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tmp = REG_SET_FIELD(tmp, GRPH_FLIP_CONTROL,
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-
GRPH_SURFACE_UPDATE_H_RETRACE_EN, async ? 1 : 0);
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+
GRPH_SURFACE_UPDATE_IMMEDIATE_EN, async ? 1 : 0);
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WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, tmp);
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/* update the scanout addresses */
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WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset,