[PATCH v6 0/2] Fix dma mapping when the cache is coherent
gregory.clement at free-electrons.com
Thu Apr 7 11:51:22 PDT 2016
On ven., avril 01 2016, Marcin Wojtas <mw at semihalf.com> wrote:
> Hi Gregory,
> With the patches an issue with SoC hang in under-stress MTU change
> test of network is no longer a problem. If you wish you can add:
> Tested-by: Marcin Wojtas <mw at semihalf.com>
I submitted both patches to Russell King's Patch Tracking System.
> Best regards,
> 2016-03-31 11:09 GMT+02:00 Gregory CLEMENT <gregory.clement at free-electrons.com>:
>> These two patches fixes the dma mapping functions when the system is
>> cache coherent. The first one allows to fix an issue we have on Armada
>> 375/38x with the PL310 that's why it is tagged for stable too.
>> I didn't got any feedback on the fifth version 5 monthsago, and then I
>> forgot to submit it to Russell patch system. In the meantime, there
>> was many changes in the arch/arm/mm/dma-mapping.c file. So I had to
>> rework the patch that's why I removed the reviewed flag from Catalin.
>> The last version was posted here:
>> v5 -> v6:
>> - Rebased on v4.6-rc1
>> v4 -> v5
>> - Keep the dmac_* function outside the !is_coherent case.
>> v3 -> v4:
>> - Rebased on v4.3-rc1
>> - Fix conflict with commit "21caf3a765b0 ARM: 8398/1: arm DMA: Fix
>> allocation from CMA for coherent DMA"
>> v2 -> v3:
>> - Fix comments in patch 1 as suggested by Catalin.
>> - Fix build issues in patch 2 (by using the multi_v7_defconfig +
>> - Add the arm_coherent_iommu_mmap_attrs function.
>> Gregory CLEMENT (2):
>> ARM: dma-mapping: Don't use outer_flush_range when the L2C is coherent
>> ARM: dma-mapping: Fix the coherent case when iommu is used
>> arch/arm/mm/dma-mapping.c | 144 ++++++++++++++++++++++++++++++++--------------
>> 1 file changed, 101 insertions(+), 43 deletions(-)
Gregory Clement, Free Electrons
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