diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2021-08-19 09:34:06 -0700 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-08-29 19:14:20 +0530 |
| commit | d8071323c5632bdf0a8ef9b9e5662fac43649f9d (patch) | |
| tree | 4184d8f8eda5c2830302812456daf79d3ba233ba /drivers/dma/Kconfig | |
| parent | aac6c0f90799d66b8989be1e056408f33fd99fe6 (diff) | |
dmaengine: idxd: fix setting up priv mode for dwq
DSA spec says WQ priv bit is 0 if the Privileged Mode Enable field of the
PCI Express PASID capability is 0 and pasid is enabled. Make sure that the
WQCFG priv field is set correctly according to usage type. Reject config if
setting up kernel WQ type and no support. Also add the correct priv setup
for a descriptor.
Fixes: 484f910e93b4 ("dmaengine: idxd: fix wq config registers offset programming")
Cc: Ramesh Thomas <ramesh.thomas@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162939084657.903168.14160019185148244596.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/Kconfig')
| -rw-r--r-- | drivers/dma/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 87f2efb4fa65..ca153384ebf0 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -285,6 +285,7 @@ config INTEL_IDXD tristate "Intel Data Accelerators support" depends on PCI && X86_64 && !UML depends on PCI_MSI + depends on PCI_PASID depends on SBITMAP select DMA_ENGINE help |