[v3,0/7] Add support for QCOM IOMMU v2 and 500

Message

AngeloGioacchino Del Regno Oct. 1, 2019, 3:56 p.m. UTC

From: AngeloGioacchino Del Regno <[e-mail]>

Some Qualcomm Family-B SoCs have got a different version of the QCOM
IOMMU, specifically v2 and 500, which perfectly adhere to the current
qcom_iommu driver, but need some variations due to slightly different
hypervisor behavior.

The personal aim is to upstream MSM8956 as much as possible.

This code has been tested on two Sony phones featuring the Qualcomm
MSM8956 SoC.

Changes in v2:
- Fixed optional properties placement in documentation

Changes in v3:
- Rebased onto linux-next 01/10/2019
- Added missing SCM commit (required by the AArch64 PT switch support)

Angelo G. Del Regno (1):
  firmware: qcom: scm: Add function to set IOMMU pagetable addressing

AngeloGioacchino Del Regno (6):
  iommu/qcom: Use the asid read from device-tree if specified
  iommu/qcom: Write TCR before TTBRs to fix ASID access behavior
  iommu/qcom: Properly reset the IOMMU context
  iommu/qcom: Add support for AArch64 IOMMU pagetables
  iommu/qcom: Index contexts by asid number to allow asid 0
  iommu/qcom: Add support for QCIOMMUv2 and QCIOMMU-500 secured contexts

 .../devicetree/bindings/iommu/qcom,iommu.txt  |   5 +
 drivers/firmware/qcom_scm-32.c                |   6 +
 drivers/firmware/qcom_scm-64.c                |  15 ++
 drivers/firmware/qcom_scm.c                   |   7 +
 drivers/firmware/qcom_scm.h                   |   4 +
 drivers/firmware/qcom_scm.h.rej               |  13 ++
 drivers/iommu/qcom_iommu.c                    | 134 ++++++++++++++----
 include/linux/qcom_scm.h                      |   2 +
 include/linux/qcom_scm.h.rej                  |  19 +++
 9 files changed, 177 insertions(+), 28 deletions(-)
 create mode 100644 drivers/firmware/qcom_scm.h.rej
 create mode 100644 include/linux/qcom_scm.h.rej