This series introduces support for performing iova-to-phys translations via
the ARM SMMU hardware on supported implementations. We also make use of
some new generic macros for polling hardware registers.
v4..v5:
- iopoll: Added support for other accessor functions
- iopoll: Unified atomic and non-atomic interfaces
- iopoll: Fixed erroneous `might_sleep'
- arm-smmu: Lowered timeout and moved to new iopoll atomic interface
v3..v4:
- Updated the iopoll commit message to reflect the patch better
- Added locking around address translation op
- Return 0 on iova_to_phys failure
v2..v3:
- Removed unnecessary `dev_name's
v1..v2:
- Renamed one of the iopoll macros to use the more standard `_atomic'
suffix
- Removed some convenience iopoll wrappers to encourage explicitness
Matt Wagantall (1):
iopoll: Introduce memory-mapped IO polling macros
Mitchel Humpherys (1):
iommu/arm-smmu: add support for iova_to_phys through ATS1PR
drivers/iommu/arm-smmu.c | 79 +++++++++++++++++-
include/linux/iopoll.h | 213 +++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 291 insertions(+), 1 deletion(-)
create mode 100644 include/linux/iopoll.h
--
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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