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| author | Dave Jiang <dave.jiang@intel.com> | 2023-04-07 13:31:43 -0700 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-04-12 23:18:46 +0530 |
| commit | f2dc327131b5cbb2cbb467cec23836f2e9d4cf46 (patch) | |
| tree | 3061546a26b79310c4e4d2654d22763cfb6e1add /Documentation/ABI/stable | |
| parent | a62b8f87c770fa4109ce515e4d8a0d4701a4ca5f (diff) | |
| download | linux-stable-f2dc327131b5cbb2cbb467cec23836f2e9d4cf46.tar.gz linux-stable-f2dc327131b5cbb2cbb467cec23836f2e9d4cf46.tar.bz2 linux-stable-f2dc327131b5cbb2cbb467cec23836f2e9d4cf46.zip | |
dmaengine: idxd: add per wq PRS disable
Add sysfs knob for per wq Page Request Service disable. This knob
disables PRS support for the specific wq. When this bit is set,
it also overrides the wq's block on fault enabling.
Tested-by: Tony Zhu <tony.zhu@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Co-developed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lore.kernel.org/r/20230407203143.2189681-17-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation/ABI/stable')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-driver-dma-idxd | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd index 5d0df57f5298..534b7a3d59fc 100644 --- a/Documentation/ABI/stable/sysfs-driver-dma-idxd +++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd @@ -235,6 +235,16 @@ Contact: dmaengine@vger.kernel.org Description: Indicate whether ATS disable is turned on for the workqueue. 0 indicates ATS is on, and 1 indicates ATS is off for the workqueue. +What: /sys/bus/dsa/devices/wq<m>.<n>/prs_disable +Date: Sept 14, 2022 +KernelVersion: 6.4.0 +Contact: dmaengine@vger.kernel.org +Description: Controls whether PRS disable is turned on for the workqueue. + 0 indicates PRS is on, and 1 indicates PRS is off for the + workqueue. This option overrides block_on_fault attribute + if set. It's visible only on platforms that support the + capability. + What: /sys/bus/dsa/devices/wq<m>.<n>/occupancy Date May 25, 2021 KernelVersion: 5.14.0 |