Hi all, Since Nate reported a reasonable performance boost from the out-of-line MSI polling in v1 [1], I've now implemented the equivalent for cons polling as well - that has been boot-tested on D05 with some trivial I/O and at least doesn't seem to lock up or explode. There's also a little cosmetic tweaking to make the patches a bit cleaner as a series.
Robin. [1] https://www.mail-archive.com/iommu@lists.linux-foundation.org/msg19657.html Robin Murphy (5): 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 interrupt iommu/arm-smmu-v3: Poll for CMD_SYNC outside cmdq lock iommu/arm-smmu-v3: Use burst-polling for sync completion drivers/iommu/arm-smmu-v3.c | 194 ++++++++++++++++++++++++++++++-------------- 1 file changed, 135 insertions(+), 59 deletions(-) -- 2.13.4.dirty _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
