drm/amd/ras: detect old ras eeprom format

Handler of some formats will be implemented in the future.

UMC_CHANNEL_IDX_V2 is a flag to indicate v2 format channel index stored
in eeprom, the flag was retired in v3 and save_nps is introduced in v3,
so they have no conflict.

eeprom format v1: store channel index within a umc instance in eeprom
    range in UMC v12: 0 ~ 7
eeprom format v2: store global channel index in eeprom
    range in UMC v12: 0 ~ 127

v2: change the bit range of save_nps from [40:47] to [40:46],
    UMC_CHANNEL_IDX_V2 use bit 47.

    use RAS_DEV_WARN_RATELIMITED for retire record check, avoid log
    noise.

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>

0 files changed, 0 insertions, 0 deletions