[PATCH v2 0/3] arm-smmu-qcom: Create qcom_smmu_impl for ACPI boot

Shawn Guo shawn.guo at linaro.org
Fri Apr 2 04:55:59 BST 2021


The arm-smmu-qcom driver needs to hook up qcom_smmu_impl for booting up
Snapdragon platforms.  Such hook-up is being done for DT boot by
matching compatibles.  The series tries to handle the hook-up for ACPI
boot by looking at model identifier, which is figured out by IORT driver
using acpi_match_platform_list() helper.  It helps to get Debian
installer booting with ACPI work for Qualcomm SC8180X based laptops like
Lenovo Flex 5G.

Changes for v2:
- Rather than using asl_compiler_id in IORT table, follow suggestion
  from Robin Murphy to use acpi_match_platform_list() to match platform.


Shawn Guo (3):
  ACPI/IORT: Consolidate use of SMMU device platdata
  ACPI/IORT: Add Qualcomm Snapdragon platforms to iort_plat_info[]
  iommu/arm-smmu-qcom: hook up qcom_smmu_impl for ACPI boot

 drivers/acpi/arm64/iort.c                   | 36 +++++++++------------
 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c |  6 +++-
 drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c  |  9 ++++++
 drivers/iommu/arm/arm-smmu/arm-smmu.c       |  9 ++++--
 drivers/perf/arm_smmuv3_pmu.c               |  8 +++--
 include/linux/acpi_iort.h                   | 12 +++++--
 6 files changed, 51 insertions(+), 29 deletions(-)

-- 
2.17.1




More information about the linux-arm-kernel mailing list