[PATCH v4 0/7] firmware: smccc: Add basic SMCCC v1.2 + ARCH_SOC_ID support

Sudeep Holla
2020-05-18T09:12:29Z

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[3] 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[2]:
- 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

v3[2]->v4:
- Incorporated all the review comments from Mark R

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://lore.kernel.org/r/20200506164411.3284-1-sudeep.holla@arm.com/
[3] 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 | 22 ++---
drivers/firmware/smccc/Kconfig | 25 ++++++
drivers/firmware/smccc/Makefile | 4 +
drivers/firmware/smccc/smccc.c | 31 +++++++
drivers/firmware/smccc/soc_id.c | 151 ++++++++++++++++++++++++++++++++
include/linux/arm-smccc.h | 27 +++++-
include/linux/psci.h | 7 --
11 files changed, 256 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

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2.17.1