Re: [PATCH v2 0/4] Qcom smmu-500 TLB invalidation errata for sdm845

From: Will Deacon
Date: Tue Sep 25 2018 - 12:39:45 EST


On Tue, Sep 25, 2018 at 02:09:34PM +0200, Joerg Roedel wrote:
> On Mon, Sep 10, 2018 at 11:55:47AM +0530, Vivek Gautam wrote:
> > Vivek Gautam (4):
> > firmware: qcom_scm-64: Add atomic version of qcom_scm_call
> > firmware/qcom_scm: Add atomic version of io read/write APIs
> > firmware/qcom_scm: Add scm call to handle smmu errata
> > iommu/arm-smmu: Add support to handle Qcom's TLBI serialization errata
> >
> > drivers/firmware/qcom_scm-32.c | 17 ++++
> > drivers/firmware/qcom_scm-64.c | 181 +++++++++++++++++++++++++++++++----------
> > drivers/firmware/qcom_scm.c | 18 ++++
> > drivers/firmware/qcom_scm.h | 9 ++
> > drivers/iommu/arm-smmu-regs.h | 2 +
> > drivers/iommu/arm-smmu.c | 133 +++++++++++++++++++++++++++++-
> > include/linux/qcom_scm.h | 6 ++
> > 7 files changed, 320 insertions(+), 46 deletions(-)
>
> Should this go through the iommu-tree? In that case I need Acked-by's
> for the firmware code changes.

Yup, and I'd also like Robin's ack on the arm-smmu*.c changes (I see he has
some comments on the code as it stands).

Will