| From: |
| Jens Wiklander <jens.wiklander@linaro.org> |
| To: |
| linux-arm-kernel@lists.infradead.org, Arnd Bergmann <arnd@arndb.de>, Mark Rutland <mark.rutland@arm.com>, Will Deacon <will.deacon@arm.com>, Catalin Marinas <catalin.marinas@arm.com>, Russell King <linux@arm.linux.org.uk> |
| Subject: |
| [PATCH v3 0/4] ARM SMC Calling Convention interface |
| Date: |
| Wed, 25 Nov 2015 12:04:17 +0100 |
| Message-ID: |
| <1448449461-5043-1-git-send-email-jens.wiklander@linaro.org> |
| Cc: |
| Jens Wiklander <jens.wiklander@linaro.org>, Lars Persson <larper@axis.com> |
| Archive‑link: | |
Article |
Hi,
This patch set is based on the Generic TEE subsystem v6 patchset
(https://lwn.net/Articles/662495/) sent out a few weeks ago. By isolating
the ARM SMC Calling Convention patches that are useful for other purposes
than to support the Generic TEE subsystem some complexity is removed from
that patch set.
This patch set adds a common interface to do an SMC or HVC following ARM
SMC Calling Convention. The interface is implemented for both the arm and
arm64 architectures and updates the PSCI driver to use this interface
instead for firmware communication.
v3:
* Moved the export of arm_smccc_{smc,hvc} to armksyms.c for both arm and arm64
* arm: add implementation for arm-smccc
Reviewed-by: Lars Persson <lars.persson@axis.com>
* arm64: add implementation for arm-smccc
drivers: psci: replace psci firmware calls
Acked-by: Will Deacon <will.deacon@arm.com>
v2:
* Added unwinding support in the assembly functions
Thanks,
Jens
Jens Wiklander (4):
arm/arm64: add arm-smccc
arm: add implementation for arm-smccc
arm64: add implementation for arm-smccc
drivers: psci: replace psci firmware calls
arch/arm/Kconfig | 1 +
arch/arm/kernel/Makefile | 3 +-
arch/arm/kernel/armksyms.c | 6 +++
arch/arm/kernel/psci-call.S | 31 -------------
arch/arm/kernel/smccc-call.S | 50 +++++++++++++++++++++
arch/arm64/Kconfig | 1 +
arch/arm64/kernel/Makefile | 4 +-
arch/arm64/kernel/arm64ksyms.c | 5 +++
arch/arm64/kernel/asm-offsets.c | 3 ++
arch/arm64/kernel/psci-call.S | 28 ------------
arch/arm64/kernel/smccc-call.S | 43 ++++++++++++++++++
drivers/firmware/psci.c | 23 +++++++++-
include/linux/arm-smccc.h | 98 +++++++++++++++++++++++++++++++++++++++++
init/Kconfig | 3 ++
14 files changed, 235 insertions(+), 64 deletions(-)
delete mode 100644 arch/arm/kernel/psci-call.S
create mode 100644 arch/arm/kernel/smccc-call.S
delete mode 100644 arch/arm64/kernel/psci-call.S
create mode 100644 arch/arm64/kernel/smccc-call.S
create mode 100644 include/linux/arm-smccc.h
--
1.9.1
