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drm/amdgpu: add data write function for CPER ring

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

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tao Zhou
2025-01-22 17:08:11 +08:00
committed by Alex Deucher
parent 5a14282429
commit a6d9d19290
2 changed files with 96 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_cper.h
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@@ -94,6 +94,8 @@ int amdgpu_cper_generate_ue_record(struct amdgpu_device *adev,
int amdgpu_cper_generate_ce_records(struct amdgpu_device *adev,
struct aca_banks *banks,
uint16_t bank_count);
void amdgpu_cper_ring_write(struct amdgpu_ring *ring,
void *src, int count);
int amdgpu_cper_init(struct amdgpu_device *adev);
int amdgpu_cper_fini(struct amdgpu_device *adev);