On 9/30/2020 6:28 PM, Scott Branden wrote:
Add sysfs support to query the VK card status and monitor sense points. The vk-card-status and vk-card-mon details are provided in the README file in the bcm-vk driver directory. Co-developed-by: Desmond Yan <desmond....@broadcom.com> Signed-off-by: Desmond Yan <desmond....@broadcom.com> Signed-off-by: Scott Branden <scott.bran...@broadcom.com> ---
[snip]
+vk-card-status/ + bus ---> device PCIe bus + card_state ---> summary of current card states + chip_id + firmware_status ---> summary of all firmware status + firmware_version ---> summary of all firmware versions + freq_core_mhz ---> running frequency in mHz + freq_mem_mhz ---> memory frequency in mHz + mem_size_mb ---> memory size in MByte + os_state ---> current running state + reset_reason ---> last reset reason + rev_boot1 ---> boot1 firmware revision + rev_boot2 ---> boot2 firmware revision + rev_driver ---> host driver revision + rev_flash_rom ---> Flash ROM revision + sotp_boot1_rev_id ---> minimum boot1 revision required + sotp_boot2_rev_id ---> minimum boot2 revision required + sotp_dauth_1 ---> authentication key hash + sotp_dauth_1_valid ---> authentication key validity + sotp_dauth_1_active_status -> authentication key active or not + sotp_dauth_2 + sotp_dauth_2_valid + sotp_dauth_2_active_status + sotp_dauth_3 + sotp_dauth_3_valid + sotp_dauth_3_active_status + sotp_dauth_4 + sotp_dauth_4_valid + sotp_dauth_4_active_status + temp_threshold_lower_c ---> thermal low threshold in Celsius + temp_threshold_upper_c ---> thermal high threshold in Celsius + uptime_s ---> os up time in seconds + +vk-card-mon/ + alert_afbc_busy ---> AFBC block stuck + alert_ecc ---> uncorrectable ECC error(s) occurred + alert_ecc_warn ---> correctable ECC error(s) occurred + alert_heartbeat_fail ---> host detects heartbeat discontinuation + from card + alert_high_temp ---> high temperature threshold crossed + alert_intf_ver_fail ---> interface not compatible based on version + alert_low_temp_warn ---> low temperature threshold crossed + alert_malloc_fail_warn ---> mem allocation failure(s) occurred + alert_pcie_down ---> host detect pcie intf going down + alert_ssim_busy ---> ssim block busy + alert_sys_fault ---> system fault + alert_wdog_timeout ---> watchdog timeout
Almost all of these should be supported using the HWMON framework instead of custom attributes that do not follow the HWMON naming conventions.
+ firmware_status_reg + mem_ecc ---> correctable ECC error count + mem_uecc ---> uncorrectable ECC error count
Implementing an EDAC driver would be a bit overkill unless you have a way to signal ECC errors towards the host?
+ boot_status_reg ---> boot status of card + pwr_state ---> power state, 1-full, 2-reduced, 3-lowest + temperature_sensor_1_c ---> CPU die temperature in Celsius + temperature_sensor_2_c ---> DDR0 temperature in Celsius + temperature_sensor_3_c ---> DDR1 temperature in Celsius
Likewise.
+ utilization ---> runtime video transcoding consumption summary + utilization_pix ---> percentage of pixel processing used + utilization_pix_used ---> pixel processing used + utilization_pix_max ---> max pixel processing value which maps 100% load + utilization_codec ---> percentage of codec sessions used + utilization_codec_used ---> codec sessions currently used + utilization_codec_max ---> max codec sessions allowed + voltage_18_mv ---> 1.8v voltage rail in mv + voltage_33_mv ---> 3.3v voltage rail in mv
Likewise
+ +The sysfs entry supports only the read operation.
entries. -- Florian
