iommu/arm-smmu: Updates for 4.15

Hi Joerg,

Please pull these ARM SMMU updates for 4.15. The main improvement here is that we now drop the command queue lock when waiting for a CMD_SYNC to complete on implementations that support MSIs into cacheable memory. There are also some minor fixes and cleanups.

Cheers,

Will

--->8

The following changes since commit 2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e:

Linux 4.14-rc1 (2017-09-16 15:47:51 -0700)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git for-joerg/arm-smmu/updates

for you to fetch changes up to 8ff0f72371709889349a706e19bb38d9f71b1669:

iommu/arm-smmu-v3: Use burst-polling for sync completion (2017-10-20 16:55:10 +0100)

----------------------------------------------------------------
Feng Kan (1):
iommu/arm-smmu: Enable bypass transaction caching for ARM SMMU 500

Robin Murphy (6):
iommu/arm-smmu: Remove ACPICA workarounds iommu/arm-smmu-v3: Correct COHACC override message iommu/arm-smmu-v3: Specialise CMD_SYNC handling iommu/arm-smmu-v3: Forget about cmdq-sync interrupt iommu/arm-smmu-v3: Use CMD_SYNC completion MSI iommu/arm-smmu-v3: Use burst-polling for sync completion

Will Deacon (3):
iommu/arm-smmu-v3: Ensure we sync STE when only changing config field iommu/arm-smmu-v3: Split arm_smmu_cmdq_issue_sync in half iommu/arm-smmu-v3: Consolidate identical timeouts

Yisheng Xie (1):
iommu/arm-smmu-v3: Avoid ILLEGAL setting of STE.S1STALLD and CD.S

 drivers/iommu/arm-smmu-v3.c | 204 ++++++++++++++++++++++++++++++--------------
 drivers/iommu/arm-smmu.c    |  11 +--
 2 files changed, 141 insertions(+), 74 deletions(-)