Re: [PATCH v2 1/1] iommu/arm-smmu: Log CBFRSYNRA register on context fault

2019-04-23 Thread Will Deacon
On Mon, Apr 22, 2019 at 12:40:36PM +0530, Vivek Gautam wrote: > Bits[15:0] in CBFRSYNRA register contain information about > StreamID of the incoming transaction that generated the > fault. Dump CBFRSYNRA register to get this info. > This is specially useful in a distributed SMMU architecture > whe

Re: [PATCH v2 1/1] iommu/arm-smmu: Log CBFRSYNRA register on context fault

2019-04-23 Thread Ard Biesheuvel
On Tue, 23 Apr 2019 at 13:13, Robin Murphy wrote: > > On 22/04/2019 08:10, Vivek Gautam wrote: > > Bits[15:0] in CBFRSYNRA register contain information about > > StreamID of the incoming transaction that generated the > > fault. Dump CBFRSYNRA register to get this info. > > This is specially usefu

Re: [PATCH v2 1/1] iommu/arm-smmu: Log CBFRSYNRA register on context fault

2019-04-23 Thread Robin Murphy
On 22/04/2019 08:10, Vivek Gautam wrote: Bits[15:0] in CBFRSYNRA register contain information about StreamID of the incoming transaction that generated the fault. Dump CBFRSYNRA register to get this info. This is specially useful in a distributed SMMU architecture where multiple masters are conne

[PATCH v2 1/1] iommu/arm-smmu: Log CBFRSYNRA register on context fault

2019-04-22 Thread Vivek Gautam
Bits[15:0] in CBFRSYNRA register contain information about StreamID of the incoming transaction that generated the fault. Dump CBFRSYNRA register to get this info. This is specially useful in a distributed SMMU architecture where multiple masters are connected to the SMMU. SID information helps to