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| author | Dafna Hirschfeld <dhirschfeld@habana.ai> | 2022-04-11 16:11:23 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-22 21:01:20 +0200 |
| commit | 0688474eda80ba8a87c38c138aa00b4fea90d8cc (patch) | |
| tree | b2fbff500ba941c085c169e6bff0d281f7ac7830 /Documentation | |
| parent | habanalabs: use unified memory manager for CB flow (diff) | |
| download | linux-0688474eda80ba8a87c38c138aa00b4fea90d8cc.tar.xz linux-0688474eda80ba8a87c38c138aa00b4fea90d8cc.zip | |
habanalabs: add device memory scrub ability through debugfs
Add the ability to scrub the device memory with a given value.
Add file 'dram_mem_scrub_val' to set the value
and a file 'dram_mem_scrub' to scrub the dram.
This is very important to help during automated tests, when you want
the CI system to randomize the memory before training certain
DL topologies.
Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/debugfs-driver-habanalabs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-driver-habanalabs b/Documentation/ABI/testing/debugfs-driver-habanalabs index 84bf3da2bb27..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 |