Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/amdgpu: add some comments in DCE6
Add some comments.
Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
authored by
Alexandre Demers
and committed by
Alex Deucher
029ab8ca
fb92daa3
+16
-2
+16
-2
drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
+16
-2
drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
···
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/* update the scanout addresses */
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WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset,
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upper_32_bits(crtc_base));
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+
/* writing to the low address triggers the update */
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WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS + amdgpu_crtc->crtc_offset,
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(u32)crtc_base);
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-
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/* post the write */
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RREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS + amdgpu_crtc->crtc_offset);
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}
···
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{
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if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc))
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return -EINVAL;
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+
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*vbl = RREG32(mmCRTC_V_BLANK_START_END + crtc_offsets[crtc]);
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*position = RREG32(mmCRTC_STATUS_POSITION + crtc_offsets[crtc]);
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return 0;
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-
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}
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/**
···
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}
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/* watermark setup */
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/**
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* dce_v6_0_line_buffer_adjust - Set up the line buffer
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*
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* @adev: amdgpu_device pointer
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* @amdgpu_crtc: the selected display controller
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* @mode: the current display mode on the selected display
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* controller
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*
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* Setup up the line buffer allocation for
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* the selected display controller (CIK).
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* Returns the line buffer size in pixels.
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*/
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static u32 dce_v6_0_line_buffer_adjust(struct amdgpu_device *adev,
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struct amdgpu_crtc *amdgpu_crtc,
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struct drm_display_mode *mode,
···
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adev->mode_info.audio.pin[i].connected = false;
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adev->mode_info.audio.pin[i].offset = pin_offsets[i];
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adev->mode_info.audio.pin[i].id = i;
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/* disable audio. it will be set up later */
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/* XXX remove once we switch to ip funcs */
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dce_v6_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false);
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}
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