[PATCH] iommu/arm-smmu-v3: Enable ACPI based HiSilicon CMD_PREFETCH quirk(erratum 161010701)

[Will Deacon]

On Fri, Jun 23, 2017 at 08:29:28AM +0000, Shameerali Kolothum Thodi wrote:
> > -----Original Message-----
> > From: Shameerali Kolothum Thodi
> > Sent: Wednesday, May 17, 2017 10:12 AM
> > To: robin.murphy at arm.com; will.deacon at arm.com;
> > mark.rutland at arm.com; lorenzo.pieralisi at arm.com
> > Cc: John Garry; Gabriele Paoloni; Guohanjun (Hanjun Guo); xuwei (O);
> > Linuxarm; devel at acpica.org; linux-acpi at vger.kernel.org; linux-arm-
> > kernel at lists.infradead.org; devicetree at vger.kernel.org; Shameerali
> > Kolothum Thodi
> > Subject: [PATCH] iommu/arm-smmu-v3: Enable ACPI based HiSilicon
> > CMD_PREFETCH quirk(erratum 161010701)
> > 
> > HiSilicon SMMUv3 on Hip06/Hip07 platforms doesn't support CMD_PREFETCH
> > command. The dt based support for this quirk is already present in the
> > driver(hisilicon,broken-prefetch-cmd). This adds ACPI support for the
> > quirk using the IORT smmu model number.
> 
> This also  has dependency on acpica header update and it looks like it's going
> to take a while to appear on Linux mainline. I have seen patches where a 
> temp local definition for SMMU v3 model number is suggested instead.
> 
> Could you please let me know the plan so that I can base this patch similar
> to or on top of Caviums "[PATCH] iommu/arm-smmu-v3, acpi: Add temporary
> Cavium SMMU-V3 IORT model number definitions"

I think I've got this in hand, but I'll shout if I run into any issues.

Will