[PATCH 0/4] iommu: arm smmu: driver updates for 3.12

Will Deacon will.deacon at arm.com
Mon Aug 12 07:45:20 EDT 2013


Hi Joerg,

On Wed, Jul 31, 2013 at 07:21:24PM +0100, Will Deacon wrote:
> Here's a set of small drivers updates to the ARM SMMU driver that went
> in during the merge window. The main changes are:
> 
>  - Removal of a broken big-endian special case when setting the pgd
>  - Better error reporting when running with a single, combined IRQ line
>  - Removing the dynamic use of VMIDs for stage-1 mappings. This is basically
>    to make life easier for hypervisors, who apparently have a hard life
>    if guest OSs allocate their own VMIDs
>  - Simplification of the VMID/ASID allocation scheme based on the fact
>    that we're just trying to assign one ID per context-bank.
> 
> I've tested these patches with an AArch32 MMU-500 model and not seen any
> problems running stage-1 DMA transactions through the SMMU.

Could you queue these for 3.12 please?

Thanks,

Will



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