linux-kernel - [PATCH v3 0/7] firmware: smccc: Add basic SMCCC v1.2 + ARCH_SOC

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Message-Id: <20200506164411.3284-1-sudeep.holla@arm.com>
Date:   Wed,  6 May 2020 17:44:04 +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, Arnd Bergmann <arnd@...db.de>,
        harb@...erecomputing.com
Subject: [PATCH v3 0/7] firmware: smccc: Add basic SMCCC v1.2 + 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[2] fixing the original
implementation there.


v1[0]->v2[1]:
	- 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

v2[1]->v3:
	- Incorporated additional comments from Steven Price in patch 5/5
	  and added his review tags
	- Refactored SMCCC code from PSCI and moved it under
	  drivers/firmware/smccc/smccc.c
	- Also moved soc_id.c under drivers/firmware/smccc

Regards,
Sudeep

[0] https://lore.kernel.org/r/20200430114814.14116-1-sudeep.holla@arm.com/
[1] https://lore.kernel.org/r/20200504092905.10580-1-sudeep.holla@arm.com/
[2] https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/4002

Sudeep Holla (7):
  firmware: smccc: Add HAVE_ARM_SMCCC_DISCOVERY to identify SMCCC v1.1 and above
  firmware: smccc: Update link to latest SMCCC specification
  firmware: smccc: Add the definition for SMCCCv1.2 version/error codes
  firmware: smccc: Drop smccc_version enum and use ARM_SMCCC_VERSION_1_x instead
  firmware: smccc: Refactor SMCCC specific bits into separate file
  firmware: smccc: Add function to fetch SMCCC version
  firmware: smccc: Add ARCH_SOC_ID support

 MAINTAINERS                     |   9 ++
 arch/arm64/kernel/paravirt.c    |   2 +-
 drivers/firmware/Kconfig        |   6 +-
 drivers/firmware/Makefile       |   3 +-
 drivers/firmware/psci/psci.c    |  21 +---
 drivers/firmware/smccc/Kconfig  |  25 +++++
 drivers/firmware/smccc/Makefile |   4 +
 drivers/firmware/smccc/smccc.c  |  30 ++++++
 drivers/firmware/smccc/soc_id.c | 168 ++++++++++++++++++++++++++++++++
 include/linux/arm-smccc.h       |  34 ++++++-
 include/linux/psci.h            |   7 --
 11 files changed, 278 insertions(+), 31 deletions(-)
 create mode 100644 drivers/firmware/smccc/Kconfig
 create mode 100644 drivers/firmware/smccc/Makefile
 create mode 100644 drivers/firmware/smccc/smccc.c
 create mode 100644 drivers/firmware/smccc/soc_id.c

-- 
2.17.1