From: YiPeng Chai <[email protected]> Ras eeprom supports new eeprom management interfaces.
v2: Correct incorrect return values. Signed-off-by: YiPeng Chai <[email protected]> Reviewed-by: Hawking Zhang <[email protected]> Signed-off-by: Alex Deucher <[email protected]> --- drivers/gpu/drm/amd/ras/core/eeprom.c | 87 +++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) diff --git a/drivers/gpu/drm/amd/ras/core/eeprom.c b/drivers/gpu/drm/amd/ras/core/eeprom.c index 7913cdbdb8b0a..39aae3248ea77 100644 --- a/drivers/gpu/drm/amd/ras/core/eeprom.c +++ b/drivers/gpu/drm/amd/ras/core/eeprom.c @@ -1390,3 +1390,90 @@ int ras_eeprom_get_version(struct ras_core_context *ras_core, uint32_t *version) return 0; } + +static int ras_eeprom_get_records(struct ras_core_context *ras_core, u32 start, + struct eeprom_umc_record *record, u32 num) +{ + if (!record) + return -EINVAL; + + return ras_eeprom_read(ras_core, record, num); +} + +static int __check_ras_table(struct ras_core_context *ras_core, + struct ras_eeprom_control *control) +{ + int res = 0; + + mutex_lock(&control->ras_tbl_mutex); + res = __verify_ras_table_checksum(control); + mutex_unlock(&control->ras_tbl_mutex); + if (res) + RAS_DEV_ERR(ras_core->dev, + "RAS table checksum is incorrect! ret: %d\n", res); + + return res; +} + +static void __get_eeprom_status(struct ras_core_context *ras_core, + u32 *status, bool fast_mode) +{ + struct ras_eeprom_control *control = ras_core->eeprom_mgr.ras_eeprom; + struct ras_eeprom_table_header *hdr; + + if (!control) + return; + + hdr = &control->tbl_hdr; + if (!fast_mode && __check_ras_table(ras_core, control)) + *status = RAS_EEPROM_FAULT; + else if (hdr->header == RAS_TABLE_HDR_VAL) + *status = RAS_EEPROM_OK; + else if (hdr->header == RAS_TABLE_HDR_BAD) + *status = RAS_EEPROM_LOCKED; + else + *status = RAS_EEPROM_UNKNOWN; +} + +static int ras_eeprom_get_eeprom_info(struct ras_core_context *ras_core, + struct ras_eeprom_info *eeprom_info, bool fast_mode) +{ + struct ras_eeprom_control *ctl = ras_core->eeprom_mgr.ras_eeprom; + struct ras_eeprom_table_header *hdr; + + if (!ctl || !eeprom_info) + return -EINVAL; + + hdr = &ctl->tbl_hdr; + __get_eeprom_status(ras_core, &eeprom_info->eeprom_status, fast_mode); + eeprom_info->record_format_version = hdr->version; + eeprom_info->record_count = ctl->ras_num_recs; + eeprom_info->max_record_count = ctl->ras_max_record_count; + eeprom_info->bad_channel_bitmap = ctl->bad_channel_bitmap; + + return 0; +} + +static int ras_eeprom_unlock(struct ras_core_context *ras_core) +{ + struct ras_eeprom_control *control = ras_core->eeprom_mgr.ras_eeprom; + int ret; + + if (!control) + return -EINVAL; + + ret = __check_ras_table(ras_core, control); + if (ret) + return ret; + + return ras_eeprom_correct_header_tag(control, RAS_TABLE_HDR_VAL); +} + +struct ras_eeprom_ops ras_drv_eeprom_ops = { + .reset_table = ras_eeprom_reset_table, + .get_records = ras_eeprom_get_records, + .append_records = ras_eeprom_append, + .get_record_count = ras_eeprom_get_record_count, + .get_eeprom_info = ras_eeprom_get_eeprom_info, + .unlock_eeprom = ras_eeprom_unlock, +}; -- 2.55.0
