Re: [PATCH v5 1/1] iommu/io-pgtable-arm: Add support to use system cache

2019-05-23 Thread Vivek Gautam
On Thu, May 23, 2019 at 4:11 PM Robin Murphy wrote: > > On 2019-05-16 10:30 am, Vivek Gautam wrote: > > Few Qualcomm platforms such as, sdm845 have an additional outer > > cache called as System cache, aka. Last level cache (LLC) that > > allows non-coherent devices to upgrade to using caching. >

Re: [PATCH v5 1/1] iommu/io-pgtable-arm: Add support to use system cache

2019-05-23 Thread Robin Murphy
On 2019-05-16 10:30 am, Vivek Gautam wrote: Few Qualcomm platforms such as, sdm845 have an additional outer cache called as System cache, aka. Last level cache (LLC) that allows non-coherent devices to upgrade to using caching. This cache sits right before the DDR, and is tightly coupled with

Re: [PATCH v5 1/1] iommu/io-pgtable-arm: Add support to use system cache

2019-05-23 Thread Vivek Gautam
Hi Robin, On Thu, May 16, 2019 at 3:00 PM Vivek Gautam wrote: > > Few Qualcomm platforms such as, sdm845 have an additional outer > cache called as System cache, aka. Last level cache (LLC) that > allows non-coherent devices to upgrade to using caching. > This cache sits right before the DDR,

[PATCH v5 1/1] iommu/io-pgtable-arm: Add support to use system cache

2019-05-16 Thread Vivek Gautam
Few Qualcomm platforms such as, sdm845 have an additional outer cache called as System cache, aka. Last level cache (LLC) that allows non-coherent devices to upgrade to using caching. This cache sits right before the DDR, and is tightly coupled with the memory controller. The clients using this