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SubjectRe: [RFC][PATCH 0/3] iommu/fsl: Freescale PAMU driver and IOMMU API implementation.
On 09/19/2012 08:49:14 AM, Kumar Gala wrote:
>
> On Sep 19, 2012, at 8:17 AM, <b16395@freescale.com>
> <b16395@freescale.com> wrote:
>
> > From: Varun Sethi <Varun.Sethi@freescale.com>
> >
> > This patchset provides the Freescale PAMU (Peripheral Access
> Management Unit) driver
> > and the corresponding IOMMU API implementation. PAMU is the IOMMU
> present on Freescale
> > QorIQ platforms. PAMU can authorize memory access, remap the memory
> address, and remap
> > the I/O transaction type.
> >
> > This set consists of the following patches:
> > 1. Addition of new field in the device (powerpc) archdata structure
> for storing iommu domain information
> > pointer. This pointer is stored when the device is attached to a
> particular iommu domain.
> > 2. Addition of domain attributes required by the PAMU driver IOMMU
> API.
> > 3. PAMU driver and IOMMU API implementation.
> >
> > Varun Sethi (3):
> > Store iommu domain information pointer in archdata.
> > Add iommu domain attributes required by fsl PAMU driver.
> > FSL PAMU driver and IOMMU API implementation.
> >
> > arch/powerpc/include/asm/device.h | 4 +
> > drivers/iommu/Kconfig | 7 +
> > drivers/iommu/Makefile | 1 +
> > drivers/iommu/fsl_pamu.c | 1033
> +++++++++++++++++++++++++++++++++++++
> > drivers/iommu/fsl_pamu.h | 377 ++++++++++++++
> > drivers/iommu/fsl_pamu_domain.c | 990
> +++++++++++++++++++++++++++++++++++
> > drivers/iommu/fsl_pamu_domain.h | 94 ++++
> > drivers/iommu/fsl_pamu_proto.h | 49 ++
> > include/linux/iommu.h | 30 ++
> > 9 files changed, 2585 insertions(+), 0 deletions(-)
> > create mode 100644 drivers/iommu/fsl_pamu.c
> > create mode 100644 drivers/iommu/fsl_pamu.h
> > create mode 100644 drivers/iommu/fsl_pamu_domain.c
> > create mode 100644 drivers/iommu/fsl_pamu_domain.h
> > create mode 100644 drivers/iommu/fsl_pamu_proto.h
>
> I assume that another patch series will add device tree binding spec
> and update device trees for SoCs with PAMU?

The device trees already have PAMU in them. A binding would be nice,
though.

-Scott


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