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misc: smpro-errmon: Add Ampere's SMpro error monitor driver
Add Ampere's SMpro error monitor driver for monitoring and reporting RAS-related errors as reported by SMpro co-processor found on Ampere's Altra processor family. Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com> Link: https://lore.kernel.org/r/20221031024442.2490881-3-quan@os.amperecomputing.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Quan Nguyen
committed by
Greg Kroah-Hartman
Greg Kroah-Hartman
parent
c08645ea21
commit
4a4a4e9eba
@@ -0,0 +1,264 @@
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What: /sys/bus/platform/devices/smpro-errmon.*/error_[core|mem|pcie|other]_[ce|ue]
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KernelVersion: 6.1
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Contact: Quan Nguyen <quan@os.amperecomputing.com>
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Description:
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(RO) Contains the 48-byte Ampere (Vendor-Specific) Error Record printed
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in hex format according to the table below:
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+--------+---------------+-------------+------------------------------------------------------------+
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| Offset | Field | Size (byte) | Description |
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+--------+---------------+-------------+------------------------------------------------------------+
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| 00 | Error Type | 1 | See :ref:`the table below <smpro-error-types>` for details |
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+--------+---------------+-------------+------------------------------------------------------------+
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| 01 | Subtype | 1 | See :ref:`the table below <smpro-error-types>` for details |
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+--------+---------------+-------------+------------------------------------------------------------+
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| 02 | Instance | 2 | See :ref:`the table below <smpro-error-types>` for details |
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+--------+---------------+-------------+------------------------------------------------------------+
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| 04 | Error status | 4 | See ARM RAS specification for details |
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+--------+---------------+-------------+------------------------------------------------------------+
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| 08 | Error Address | 8 | See ARM RAS specification for details |
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+--------+---------------+-------------+------------------------------------------------------------+
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| 16 | Error Misc 0 | 8 | See ARM RAS specification for details |
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+--------+---------------+-------------+------------------------------------------------------------+
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| 24 | Error Misc 1 | 8 | See ARM RAS specification for details |
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+--------+---------------+-------------+------------------------------------------------------------+
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| 32 | Error Misc 2 | 8 | See ARM RAS specification for details |
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+--------+---------------+-------------+------------------------------------------------------------+
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| 40 | Error Misc 3 | 8 | See ARM RAS specification for details |
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+--------+---------------+-------------+------------------------------------------------------------+
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The table below defines the value of error types, their subtype, subcomponent and instance:
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.. _smpro-error-types:
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+-----------------+------------+----------+----------------+----------------------------------------+
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| Error Group | Error Type | Sub type | Sub component | Instance |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| CPM (core) | 0 | 0 | Snoop-Logic | CPM # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| CPM (core) | 0 | 2 | Armv8 Core 1 | CPM # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| MCU (mem) | 1 | 1 | ERR1 | MCU # \| SLOT << 11 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| MCU (mem) | 1 | 2 | ERR2 | MCU # \| SLOT << 11 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| MCU (mem) | 1 | 3 | ERR3 | MCU # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| MCU (mem) | 1 | 4 | ERR4 | MCU # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| MCU (mem) | 1 | 5 | ERR5 | MCU # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| MCU (mem) | 1 | 6 | ERR6 | MCU # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| MCU (mem) | 1 | 7 | Link Error | MCU # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| Mesh (other) | 2 | 0 | Cross Point | X \| (Y << 5) \| NS <<11 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| Mesh (other) | 2 | 1 | Home Node(IO) | X \| (Y << 5) \| NS <<11 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| Mesh (other) | 2 | 2 | Home Node(Mem) | X \| (Y << 5) \| NS <<11 \| device<<12 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| Mesh (other) | 2 | 4 | CCIX Node | X \| (Y << 5) \| NS <<11 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| 2P Link (other) | 3 | 0 | N/A | Altra 2P Link # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 0 | ERR0 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 1 | ERR1 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 2 | ERR2 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 3 | ERR3 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 4 | ERR4 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 5 | ERR5 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 6 | ERR6 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 7 | ERR7 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 8 | ERR8 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 9 | ERR9 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 10 | ERR10 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 11 | ERR11 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 12 | ERR12 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| GIC (other) | 5 | 13-21 | ERR13 | RC # + 1 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMMU (other) | 6 | TCU | 100 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMMU (other) | 6 | TBU0 | 0 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMMU (other) | 6 | TBU1 | 1 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMMU (other) | 6 | TBU2 | 2 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMMU (other) | 6 | TBU3 | 3 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMMU (other) | 6 | TBU4 | 4 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMMU (other) | 6 | TBU5 | 5 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMMU (other) | 6 | TBU6 | 6 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMMU (other) | 6 | TBU7 | 7 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMMU (other) | 6 | TBU8 | 8 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMMU (other) | 6 | TBU9 | 9 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| PCIe AER (pcie) | 7 | Root | 0 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| PCIe AER (pcie) | 7 | Device | 1 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| PCIe RC (pcie) | 8 | RCA HB | 0 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| PCIe RC (pcie) | 8 | RCB HB | 1 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| PCIe RC (pcie) | 8 | RASDP | 8 | RC # |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| OCM (other) | 9 | ERR0 | 0 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| OCM (other) | 9 | ERR1 | 1 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| OCM (other) | 9 | ERR2 | 2 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMpro (other) | 10 | ERR0 | 0 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMpro (other) | 10 | ERR1 | 1 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| SMpro (other) | 10 | MPA_ERR | 2 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| PMpro (other) | 11 | ERR0 | 0 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| PMpro (other) | 11 | ERR1 | 1 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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| PMpro (other) | 11 | MPA_ERR | 2 | 0 |
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+-----------------+------------+----------+----------------+----------------------------------------+
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Example::
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# cat error_other_ue
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880807001e004010401040101500000001004010401040100c0000000000000000000000000000000000000000000000
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The detail of each sysfs entries is as below:
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+-------------+---------------------------------------------------------+----------------------------------+
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| Error | Sysfs entry | Description (when triggered) |
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+-------------+---------------------------------------------------------+----------------------------------+
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| Core's CE | /sys/bus/platform/devices/smpro-errmon.*/error_core_ce | Core has CE error |
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+-------------+---------------------------------------------------------+----------------------------------+
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| Core's UE | /sys/bus/platform/devices/smpro-errmon.*/error_core_ue | Core has UE error |
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+-------------+---------------------------------------------------------+----------------------------------+
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| Memory's CE | /sys/bus/platform/devices/smpro-errmon.*/error_mem_ce | Memory has CE error |
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+-------------+---------------------------------------------------------+----------------------------------+
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| Memory's UE | /sys/bus/platform/devices/smpro-errmon.*/error_mem_ue | Memory has UE error |
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+-------------+---------------------------------------------------------+----------------------------------+
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| PCIe's CE | /sys/bus/platform/devices/smpro-errmon.*/error_pcie_ce | any PCIe controller has CE error |
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+-------------+---------------------------------------------------------+----------------------------------+
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| PCIe's UE | /sys/bus/platform/devices/smpro-errmon.*/error_pcie_ue | any PCIe controller has UE error |
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+-------------+---------------------------------------------------------+----------------------------------+
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| Other's CE | /sys/bus/platform/devices/smpro-errmon.*/error_other_ce | any other CE error |
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+-------------+---------------------------------------------------------+----------------------------------+
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| Other's UE | /sys/bus/platform/devices/smpro-errmon.*/error_other_ue | any other UE error |
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+-------------+---------------------------------------------------------+----------------------------------+
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UE: Uncorrect-able Error
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CE: Correct-able Error
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For details, see section `3.3 Ampere (Vendor-Specific) Error Record Formats,
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Altra Family RAS Supplement`.
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What: /sys/bus/platform/devices/smpro-errmon.*/overflow_[core|mem|pcie|other]_[ce|ue]
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KernelVersion: 6.1
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Contact: Quan Nguyen <quan@os.amperecomputing.com>
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Description:
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(RO) Return the overflow status of each type HW error reported:
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- 0 : No overflow
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- 1 : There is an overflow and the oldest HW errors are dropped
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The detail of each sysfs entries is as below:
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+-------------+-----------------------------------------------------------+---------------------------------------+
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| Overflow | Sysfs entry | Description |
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+-------------+-----------------------------------------------------------+---------------------------------------+
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| Core's CE | /sys/bus/platform/devices/smpro-errmon.*/overflow_core_ce | Core CE error overflow |
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+-------------+-----------------------------------------------------------+---------------------------------------+
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| Core's UE | /sys/bus/platform/devices/smpro-errmon.*/overflow_core_ue | Core UE error overflow |
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+-------------+-----------------------------------------------------------+---------------------------------------+
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| Memory's CE | /sys/bus/platform/devices/smpro-errmon.*/overflow_mem_ce | Memory CE error overflow |
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+-------------+-----------------------------------------------------------+---------------------------------------+
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| Memory's UE | /sys/bus/platform/devices/smpro-errmon.*/overflow_mem_ue | Memory UE error overflow |
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+-------------+-----------------------------------------------------------+---------------------------------------+
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| PCIe's CE | /sys/bus/platform/devices/smpro-errmon.*/overflow_pcie_ce | any PCIe controller CE error overflow |
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+-------------+-----------------------------------------------------------+---------------------------------------+
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| PCIe's UE | /sys/bus/platform/devices/smpro-errmon.*/overflow_pcie_ue | any PCIe controller UE error overflow |
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+-------------+-----------------------------------------------------------+---------------------------------------+
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| Other's CE | /sys/bus/platform/devices/smpro-errmon.*/overflow_other_ce| any other CE error overflow |
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+-------------+-----------------------------------------------------------+---------------------------------------+
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| Other's UE | /sys/bus/platform/devices/smpro-errmon.*/overflow_other_ue| other UE error overflow |
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+-------------+-----------------------------------------------------------+---------------------------------------+
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where:
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- UE: Uncorrect-able Error
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- CE: Correct-able Error
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What: /sys/bus/platform/devices/smpro-errmon.*/[error|warn]_[smpro|pmpro]
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KernelVersion: 6.1
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Contact: Quan Nguyen <quan@os.amperecomputing.com>
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Description:
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(RO) Contains the internal firmware error/warning printed as hex format.
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The detail of each sysfs entries is as below:
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+---------------+------------------------------------------------------+--------------------------+
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| Error | Sysfs entry | Description |
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+---------------+------------------------------------------------------+--------------------------+
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| SMpro error | /sys/bus/platform/devices/smpro-errmon.*/error_smpro | system has SMpro error |
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+---------------+------------------------------------------------------+--------------------------+
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| SMpro warning | /sys/bus/platform/devices/smpro-errmon.*/warn_smpro | system has SMpro warning |
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+---------------+------------------------------------------------------+--------------------------+
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| PMpro error | /sys/bus/platform/devices/smpro-errmon.*/error_pmpro | system has PMpro error |
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+---------------+------------------------------------------------------+--------------------------+
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| PMpro warning | /sys/bus/platform/devices/smpro-errmon.*/warn_pmpro | system has PMpro warning |
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+---------------+------------------------------------------------------+--------------------------+
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For details, see section `5.10 RAS Internal Error Register Definitions,
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Altra Family Soc BMC Interface Specification`.
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What: /sys/bus/platform/devices/smpro-errmon.*/event_[vrd_warn_fault|vrd_hot|dimm_hot]
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KernelVersion: 6.1
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Contact: Quan Nguyen <quan@os.amperecomputing.com>
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Description:
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(RO) Contains the detail information in case of VRD/DIMM warning/hot events
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in hex format as below::
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AAAA
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where:
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- ``AAAA``: The event detail information data
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The detail of each sysfs entries is as below:
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+---------------+---------------------------------------------------------------+---------------------+
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| Event | Sysfs entry | Description |
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+---------------+---------------------------------------------------------------+---------------------+
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| VRD HOT | /sys/bus/platform/devices/smpro-errmon.*/event_vrd_hot | VRD Hot |
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+---------------+---------------------------------------------------------------+---------------------+
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| VR Warn/Fault | /sys/bus/platform/devices/smpro-errmon.*/event_vrd_warn_fault | VR Warning or Fault |
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+---------------+---------------------------------------------------------------+---------------------+
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| DIMM HOT | /sys/bus/platform/devices/smpro-errmon.*/event_dimm_hot | DIMM Hot |
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+---------------+---------------------------------------------------------------+---------------------+
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For more details, see section `5.7 GPI Status Registers,
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Altra Family Soc BMC Interface Specification`.
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@@ -176,6 +176,18 @@ config SGI_XP
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this feature will allow for direct communication between SSIs
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based on a network adapter and DMA messaging.
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config SMPRO_ERRMON
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tristate "Ampere Computing SMPro error monitor driver"
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depends on MFD_SMPRO || COMPILE_TEST
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help
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Say Y here to get support for the SMpro error monitor function
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provided by Ampere Computing's Altra and Altra Max SoCs. Upon
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loading, the driver creates sysfs files which can be use to gather
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multiple HW error data reported via read and write system calls.
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To compile this driver as a module, say M here. The driver will be
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called smpro-errmon.
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config CS5535_MFGPT
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tristate "CS5535/CS5536 Geode Multi-Function General Purpose Timer (MFGPT) support"
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depends on MFD_CS5535
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@@ -23,6 +23,7 @@ obj-$(CONFIG_ENCLOSURE_SERVICES) += enclosure.o
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obj-$(CONFIG_KGDB_TESTS) += kgdbts.o
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obj-$(CONFIG_SGI_XP) += sgi-xp/
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obj-$(CONFIG_SGI_GRU) += sgi-gru/
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obj-$(CONFIG_SMPRO_ERRMON) += smpro-errmon.o
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obj-$(CONFIG_CS5535_MFGPT) += cs5535-mfgpt.o
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obj-$(CONFIG_GEHC_ACHC) += gehc-achc.o
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obj-$(CONFIG_HP_ILO) += hpilo.o
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529
drivers/misc/smpro-errmon.c
Normal file
529
drivers/misc/smpro-errmon.c
Normal file
File diff suppressed because it is too large
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