RE: [PATCH] iommu: arm-smmu: Set SMTNMB_TLBEN in ACR to enable caching of bypass entries

2016-11-02 Thread Nipun Gupta
Hi Robin, > -Original Message- > From: Robin Murphy [mailto:robin.mur...@arm.com] > Sent: Wednesday, November 02, 2016 16:51 > To: Nipun Gupta ; will.dea...@arm.com; linux-arm- > ker...@lists.infradead.org; iommu@lists.linux-foundation.org > Cc: Stuart Yoder > Subject: Re: [PATCH] iommu:

[PATCH] iommu/arm-smmu: Check that iommu_fwspecs are ours

2016-11-02 Thread Robin Murphy
We seem to have forgotten to check that iommu_fwspecs actually belong to us before we go ahead and dereference their private data. Oops. Fixes: 021bb8420d44 ("iommu/arm-smmu: Wire up generic configuration support") Signed-off-by: Robin Murphy --- drivers/iommu/arm-smmu.c | 2 +- 1 file changed,

Re: [PATCH v14 00/16] KVM PCIe/MSI passthrough on ARM/ARM64

2016-11-02 Thread Auger Eric
Hi Robin, On 24/10/2016 21:39, Robin Murphy wrote: > On 21/10/16 10:26, Auger Eric wrote: >> Hi Will, >> >> On 20/10/2016 19:32, Will Deacon wrote: >>> Hi Eric, >>> >>> Thanks for posting this. >>> >>> On Wed, Oct 12, 2016 at 01:22:08PM +, Eric Auger wrote: This is the second respin on top

Re: [PATCH] iommu: arm-smmu: Set SMTNMB_TLBEN in ACR to enable caching of bypass entries

2016-11-02 Thread Robin Murphy
Hi Nipun, On 02/11/16 13:35, Nipun Gupta wrote: > The SMTNMB_TLBEN in the Auxiliary Configuration Register (ACR) provides an > option to enable the updation of TLB in case of bypass transactions due to > no stream match in the stream match table. This reduces the latencies of > the subsequent tran

[PATCH] iommu: arm-smmu: Set SMTNMB_TLBEN in ACR to enable caching of bypass entries

2016-11-02 Thread Nipun Gupta
The SMTNMB_TLBEN in the Auxiliary Configuration Register (ACR) provides an option to enable the updation of TLB in case of bypass transactions due to no stream match in the stream match table. This reduces the latencies of the subsequent transactions with the same stream-id which bypasses the SMMU.

RE: [PATCH V3 4/8] drivers: platform: Configure dma operations at probe time

2016-11-02 Thread Sricharan
Hi Lorenzo, >-Original Message- >From: linux-arm-msm-ow...@vger.kernel.org >[mailto:linux-arm-msm-ow...@vger.kernel.org] On Behalf Of Lorenzo Pieralisi >Sent: Thursday, October 27, 2016 4:19 PM >To: Sricharan >Cc: 'Robin Murphy' ; will.dea...@arm.com; >j...@8bytes.org; iommu@lists.linux