drm/amdgpu: add ras_eeprom_read_idx interface

PMFW will manage RAS eeprom data by itself, add new interface to read
eeprom data via PMFW, we can read part of records by setting index.

v2: use IPID parse interface.
    pa is not used and set it to a fixed value.
v3: optimize the null pointer check for IPID parse interface.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h
index cfbd402ddea2..e881007f715b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h
@@ -186,6 +186,10 @@ int amdgpu_ras_smu_get_badpage_ipid(struct amdgpu_device *adev,
 int amdgpu_ras_smu_erase_ras_table(struct amdgpu_device *adev,
 									uint32_t *result);
 
+int amdgpu_ras_eeprom_read_idx(struct amdgpu_ras_eeprom_control *control,
+			struct eeprom_table_record *record, u32 rec_idx,
+			const u32 num);
+
 extern const struct file_operations amdgpu_ras_debugfs_eeprom_size_ops;
 extern const struct file_operations amdgpu_ras_debugfs_eeprom_table_ops;