drm/amd: Add HDP flush during jpeg init

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During jpeg init, CPU writes to frame buffer which can be cached by HDP,
occasionally causing invalid header to be sent to MMSCH.  Perform HDP flush
after writing to frame buffer before continuing with jpeg init sequence.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timmy Tsai <timmtsai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Timmy Tsai 2023-08-31 13:31:31 -04:00 • committed by Alex Deucher

parent bb0f84293e

commit 2fa73a101c

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/amd/amdgpu/jpeg_v4_0.c

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