drm/amdgpu: A workaround for JPEG_v4_0_3 ring test fail

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The jpeg_v4_0_3 jpeg_pitch register uses UVD_JRBC_SCRATCH0. It needs to
move WREG() to after jpeg_start.
Switch to a posted register write when doing the ring test to make sure
the register write lands before we test the result.

Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Sonny Jiang 2023-03-20 16:17:21 -04:00 • committed by Alex Deucher

parent 358e6c3830

commit 26dc0448ef

1 changed files with 4 additions and 1 deletions

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

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