subject:"\[PATCH 02\/13\] iommu\/io\-pgtable\-arm\: Remove redundant call to io_pgtable_tlb_sync\(\)"

Re: [PATCH 02/13] iommu/io-pgtable-arm: Remove redundant call to io_pgtable_tlb_sync()

2019-08-15 Thread Robin Murphy

On 15/08/2019 14:57, Will Deacon wrote: Hi Robin, On Thu, Aug 15, 2019 at 01:43:11PM +0100, Robin Murphy wrote: On 14/08/2019 18:56, Will Deacon wrote: Commit b6b65ca20bc9 ("iommu/io-pgtable-arm: Add support for non-strict mode") added an unconditional call to io_pgtable_tlb_sync()

Re: [PATCH 02/13] iommu/io-pgtable-arm: Remove redundant call to io_pgtable_tlb_sync()

2019-08-15 Thread Will Deacon

Hi Robin, On Thu, Aug 15, 2019 at 01:43:11PM +0100, Robin Murphy wrote: > On 14/08/2019 18:56, Will Deacon wrote: > > Commit b6b65ca20bc9 ("iommu/io-pgtable-arm: Add support for non-strict > > mode") added an unconditional call to io_pgtable_tlb_sync() immediately > > after the case where we

Re: [PATCH 02/13] iommu/io-pgtable-arm: Remove redundant call to io_pgtable_tlb_sync()

2019-08-15 Thread Robin Murphy

On 14/08/2019 18:56, Will Deacon wrote: Commit b6b65ca20bc9 ("iommu/io-pgtable-arm: Add support for non-strict mode") added an unconditional call to io_pgtable_tlb_sync() immediately after the case where we replace a block entry with a table entry during an unmap() call. This is redundant, since

[PATCH 02/13] iommu/io-pgtable-arm: Remove redundant call to io_pgtable_tlb_sync()

2019-08-14 Thread Will Deacon

Commit b6b65ca20bc9 ("iommu/io-pgtable-arm: Add support for non-strict mode") added an unconditional call to io_pgtable_tlb_sync() immediately after the case where we replace a block entry with a table entry during an unmap() call. This is redundant, since the IOMMU API will call iommu_tlb_sync()