diff options
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-bus-mhi | 10 | ||||
| -rw-r--r-- | Documentation/ABI/testing/debugfs-driver-habanalabs | 38 |
2 files changed, 48 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-bus-mhi b/Documentation/ABI/stable/sysfs-bus-mhi index ecfe7662f8d0..96ccc3385a2b 100644 --- a/Documentation/ABI/stable/sysfs-bus-mhi +++ b/Documentation/ABI/stable/sysfs-bus-mhi @@ -19,3 +19,13 @@ Description: The file holds the OEM PK Hash value of the endpoint device read without having the device power on at least once, the file will read all 0's. Users: Any userspace application or clients interested in device info. + +What: /sys/bus/mhi/devices/.../soc_reset +Date: April 2022 +KernelVersion: 5.19 +Contact: mhi@lists.linux.dev +Description: Initiates a SoC reset on the MHI controller. A SoC reset is + a reset of last resort, and will require a complete re-init. + This can be useful as a method of recovery if the device is + non-responsive, or as a means of loading new firmware as a + system administration task. diff --git a/Documentation/ABI/testing/debugfs-driver-habanalabs b/Documentation/ABI/testing/debugfs-driver-habanalabs index bcf6915987e4..0f8d20fe343f 100644 --- a/Documentation/ABI/testing/debugfs-driver-habanalabs +++ b/Documentation/ABI/testing/debugfs-driver-habanalabs @@ -170,6 +170,20 @@ KernelVersion: 5.1 Contact: ogabbay@kernel.org Description: Sets the state of the third S/W led on the device +What: /sys/kernel/debug/habanalabs/hl<n>/memory_scrub +Date: May 2022 +KernelVersion: 5.19 +Contact: dhirschfeld@habana.ai +Description: Allows the root user to scrub the dram memory. The scrubbing + value can be set using the debugfs file memory_scrub_val. + +What: /sys/kernel/debug/habanalabs/hl<n>/memory_scrub_val +Date: May 2022 +KernelVersion: 5.19 +Contact: dhirschfeld@habana.ai +Description: The value to which the dram will be set to when the user + scrubs the dram using 'memory_scrub' debugfs file + What: /sys/kernel/debug/habanalabs/hl<n>/mmu Date: Jan 2019 KernelVersion: 5.1 @@ -190,6 +204,30 @@ Description: Check and display page fault or access violation mmu errors for echo "0x200" > /sys/kernel/debug/habanalabs/hl0/mmu_error cat /sys/kernel/debug/habanalabs/hl0/mmu_error +What: /sys/kernel/debug/habanalabs/hl<n>/monitor_dump +Date: Mar 2022 +KernelVersion: 5.19 +Contact: osharabi@habana.ai +Description: Allows the root user to dump monitors status from the device's + protected config space. + This property is a binary blob that contains the result of the + monitors registers dump. + This custom interface is needed (instead of using the generic + Linux user-space PCI mapping) because this space is protected + and cannot be accessed using PCI read. + This interface doesn't support concurrency in the same device. + Only supported on GAUDI. + +What: /sys/kernel/debug/habanalabs/hl<n>/monitor_dump_trig +Date: Mar 2022 +KernelVersion: 5.19 +Contact: osharabi@habana.ai +Description: Triggers dump of monitor data. The value to trigger the operation + must be 1. Triggering the monitor dump operation initiates dump of + current registers values of all monitors. + When the write is finished, the user can read the "monitor_dump" + blob + What: /sys/kernel/debug/habanalabs/hl<n>/set_power_state Date: Jan 2019 KernelVersion: 5.1 |