linux-kernel - [PATCH v2 0/5] arm/arm64: smccc: Add ARCH_SOC

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Date:   Mon,  4 May 2020 10:29:00 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Sudeep Holla <sudeep.holla@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Steven Price <steven.price@....com>,
        linux-kernel@...r.kernel.org, harb@...erecomputing.com
Subject: [PATCH v2 0/5] arm/arm64: smccc: Add ARCH_SOC_ID support

Hi,

This patch series adds support for SMCCCv1.2 ARCH_SOC_ID.
This doesn't add other changes added in SMCCC v1.2 yet. They will
follow these soon along with its first user SPCI/PSA-FF.

This is tested using upstream TF-A + the patch[1] fixing the original
implementation there.


v1[0]->v2:
	- Incorporated comments from Steven Price in patch 5/5
	- Fixed build for CONFIG_PSCI_FW=n on some arm32 platforms
	- Added Steven Price's review tags

Regards,
Sudeep

[0] https://lore.kernel.org/r/20200430114814.14116-1-sudeep.holla@arm.com/
[1] https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/4001

Sudeep Holla (5):
  arm/arm64: smccc: Update link to latest SMCCC specification
  arm/arm64: smccc: Add the definition for SMCCCv1.2 version/error codes
  arm/arm64: smccc: Drop smccc_version enum and use ARM_SMCCC_VERSION_1_x instead
  firmware: psci: Add function to fetch SMCCC version
  arm/arm64: smccc: Add ARCH_SOC_ID support

 arch/arm64/kernel/paravirt.c   |   2 +-
 drivers/firmware/psci/Kconfig  |   9 ++
 drivers/firmware/psci/Makefile |   1 +
 drivers/firmware/psci/psci.c   |  13 ++-
 drivers/firmware/psci/soc_id.c | 165 +++++++++++++++++++++++++++++++++
 include/linux/arm-smccc.h      |  23 ++++-
 include/linux/psci.h           |   7 +-
 7 files changed, 207 insertions(+), 13 deletions(-)
 create mode 100644 drivers/firmware/psci/soc_id.c

--
2.17.1