[PATCH 0/4] Prepare for ECMDQ support

RFC --> v1
1. Resend the patches for ECMDQ preparation and remove the patches for ECMDQ implementation.
2. Patch 2 is modified. Other patches remain unchanged.
   1) Add static helper __arm_smmu_cmdq_issue_cmd(), and make arm_smmu_cmdq_issue_cmd()
      and arm_smmu_cmdq_issue_cmd_with_sync() implement based on it.
   2) Remove unused arm_smmu_cmdq_issue_sync().

RFC:
https://www.spinics.net/lists/arm-kernel/msg904879.html


Zhen Lei (4):
  iommu/arm-smmu-v3: Use command queue batching helpers to improve
    performance
  iommu/arm-smmu-v3: Add and use static helper function
    arm_smmu_cmdq_issue_cmd_with_sync()
  iommu/arm-smmu-v3: Add and use static helper function
    arm_smmu_get_cmdq()
  iommu/arm-smmu-v3: Extract reusable function
    __arm_smmu_cmdq_skip_err()

 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 71 ++++++++++++---------
 1 file changed, 42 insertions(+), 29 deletions(-)

-- 
2.26.0.106.g9fadedd


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