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author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-22 02:32:50 +0100 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-22 02:32:50 +0100 |
commit | 69308402ca6f5b80a5a090ade0b13bd146891420 (patch) | |
tree | 5e220abeed09416d93773824f5d2cf84c017859a /Documentation/ABI/stable | |
parent | Merge tag 'tag-chrome-platform-for-v6.3' of git://git.kernel.org/pub/scm/linu... (diff) | |
parent | platform/x86: nvidia-wmi-ec-backlight: Add force module parameter (diff) | |
download | linux-69308402ca6f5b80a5a090ade0b13bd146891420.tar.xz linux-69308402ca6f5b80a5a090ade0b13bd146891420.zip |
Merge tag 'platform-drivers-x86-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
- AMD PMC: Improvements to aid s2idle debugging
- Dell WMI-DDV: hwmon support
- INT3472 camera sensor power-management: Improve privacy LED support
- Intel VSEC: Base TPMI (Topology Aware Register and PM Capsule
Interface) support
- Mellanox: SN5600 and Nvidia L1 switch support
- Microsoft Surface Support: Various cleanups + code improvements
- tools/intel-speed-select: Various improvements
- Miscellaneous other cleanups / fixes
* tag 'platform-drivers-x86-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (80 commits)
platform/x86: nvidia-wmi-ec-backlight: Add force module parameter
platform/x86/amd/pmf: Add depends on CONFIG_POWER_SUPPLY
platform/x86: dell-ddv: Prefer asynchronous probing
platform/x86: dell-ddv: Add hwmon support
Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
platform: mellanox: mlx-platform: Move bus shift assignment out of the loop
platform: mellanox: mlx-platform: Add mux selection register to regmap
platform_data/mlxreg: Add field with mapped resource address
platform/mellanox: mlxreg-hotplug: Allow more flexible hotplug events configuration
platform: mellanox: Extend all systems with I2C notification callback
platform: mellanox: Split logic in init and exit flow
platform: mellanox: Split initialization procedure
platform: mellanox: Introduce support of new Nvidia L1 switch
platform: mellanox: Introduce support for next-generation 800GB/s switch
platform: mellanox: Cosmetic changes - rename to more common name
platform: mellanox: Change "reset_pwr_converter_fail" attribute
platform: mellanox: Introduce support for rack manager switch
MAINTAINERS: dell-wmi-sysman: drop Divya Bharathi
x86/platform/uv: Make kobj_type structure constant
platform/x86: think-lmi: Make kobj_type structure constant
...
Diffstat (limited to 'Documentation/ABI/stable')
-rw-r--r-- | Documentation/ABI/stable/sysfs-driver-mlxreg-io | 122 |
1 files changed, 121 insertions, 1 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-mlxreg-io b/Documentation/ABI/stable/sysfs-driver-mlxreg-io index af0cbf143c48..60953903d007 100644 --- a/Documentation/ABI/stable/sysfs-driver-mlxreg-io +++ b/Documentation/ABI/stable/sysfs-driver-mlxreg-io @@ -522,7 +522,6 @@ Description: These files allow to each of ASICs by writing 1. The files are write only. - What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/comm_chnl_ready Date: July 2022 KernelVersion: 5.20 @@ -542,3 +541,124 @@ Description: The file indicates COME module hardware configuration. The purpose is to expose some minor BOM changes for the same system SKU. The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_pwr_converter_fail +Date: February 2023 +KernelVersion: 6.3 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file shows the system reset cause due to power converter + devices failure. + Value 1 in file means this is reset cause, 0 - otherwise. + + The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/erot1_ap_reset +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/erot2_ap_reset +Date: February 2023 +KernelVersion: 6.3 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: These files aim to monitor the status of the External Root of Trust (EROT) + processor's RESET output to the Application Processor (AP). + By reading this file, could be determined if the EROT has invalidated or + revoked AP Firmware, at which point it will hold the AP in RESET until a + valid firmware is loaded. This protects the AP from running an + unauthorized firmware. In the normal flow, the AP reset should be released + after the EROT validates the integrity of the FW, and it should be done so + as quickly as possible so that the AP boots before the CPU starts to + communicate to each ASIC. + + The files are read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/erot1_recovery +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/erot2_recovery +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/erot1_reset +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/erot2_reset +Date: February 2023 +KernelVersion: 6.3 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: These files aim to perform External Root of Trust (EROT) recovery + sequence after EROT device failure. + These EROT devices protect ASICs from unauthorized access and in normal + flow their reset should be released with system power – earliest power + up stage, so that EROTs can begin boot and authentication process before + CPU starts to communicate to ASICs. + Issuing a reset to the EROT while asserting the recovery signal will cause + the EROT Application Processor to enter recovery mode so that the EROT FW + can be updated/recovered. + For reset/recovery the related file should be toggled by 1/0. + + The files are read/write. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/erot1_wp +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/erot2_wp +Date: February 2023 +KernelVersion: 6.3 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: These files allow access to External Root of Trust (EROT) for reset + and recovery sequence after EROT device failure. + Default is 0 (programming disabled). + If the system is in locked-down mode writing this file will not be allowed. + + The files are read/write. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/spi_chnl_select +Date: February 2023 +KernelVersion: 6.3 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file allows SPI chip selection for External Root of Trust (EROT) + device Out-of-Band recovery. + File can be written with 0 or with 1. It selects which EROT can be accessed + through SPI device. + + The file is read/write. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_pg_fail +Date: February 2023 +KernelVersion: 6.3 +Contact: Vadim Pasternak vadimp@nvidia.com +Description: This file shows ASIC Power Good status. + Value 1 in file means ASIC Power Good failed, 0 - otherwise. + + The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/clk_brd1_boot_fail +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/clk_brd2_boot_fail +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/clk_brd_fail +Date: February 2023 +KernelVersion: 6.3 +Contact: Vadim Pasternak vadimp@nvidia.com +Description: These files are related to clock boards status in system. + - clk_brd1_boot_fail: warning about 1-st clock board failed to boot from CI. + - clk_brd2_boot_fail: warning about 2-nd clock board failed to boot from CI. + - clk_brd_fail: error about common clock board boot failure. + + The files are read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/clk_brd_prog_en +Date: February 2023 +KernelVersion: 6.3 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file enables programming of clock boards. + Default is 0 (programming disabled). + If the system is in locked-down mode writing this file will not be allowed. + + The file is read/write. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_converter_prog_en +Date: February 2023 +KernelVersion: 6.3 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file enables programming of power converters. + Default is 0 (programming disabled). + If the system is in locked-down mode writing this file will not be allowed. + + The file is read/write. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_ac_ok_fail +Date: February 2023 +KernelVersion: 6.3 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file shows the system reset cause due to AC power failure. + Value 1 in file means this is reset cause, 0 - otherwise. + + The file is read only. |