Commit a6d9d192 authored by Tao Zhou's avatar Tao Zhou Committed by Alex Deucher
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drm/amdgpu: add data write function for CPER ring 



Old CPER data will be overwritten if ring buffer is full, and read
pointer always points to CPER header.

Signed-off-by: default avatarTao Zhou <tao.zhou1@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 5a142824
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