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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 /drivers/dma/idxd/registers.h | |
| 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 'drivers/dma/idxd/registers.h')
| -rw-r--r-- | drivers/dma/idxd/registers.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/dma/idxd/registers.h b/drivers/dma/idxd/registers.h index 9f3959d001b6..7b54a3939ea1 100644 --- a/drivers/dma/idxd/registers.h +++ b/drivers/dma/idxd/registers.h @@ -59,7 +59,8 @@ union wq_cap_reg { u64 occupancy:1; u64 occupancy_int:1; u64 op_config:1; - u64 rsvd3:9; + u64 wq_prs_support:1; + u64 rsvd4:8; }; u64 bits; } __packed; @@ -371,7 +372,7 @@ union wqcfg { u32 mode:1; /* shared or dedicated */ u32 bof:1; /* block on fault */ u32 wq_ats_disable:1; - u32 rsvd2:1; + u32 wq_prs_disable:1; u32 priority:4; u32 pasid:20; u32 pasid_en:1; |