diff options
| author | Jens Wiklander <jens.wiklander@linaro.org> | 2019-11-08 13:35:06 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-10 11:21:15 +0100 |
| commit | 36e7c2e687603c81dc47152537bd91cce681f0dc (patch) | |
| tree | b0668750926b1f38fc2cc099ebcb5f71d9c16776 /drivers/firmware | |
| parent | b4fe083f59a6f9911e00affd42fc42d046f11504 (diff) | |
ARM: 8478/2: arm/arm64: add arm-smccc
Commit 98dd64f34f47ce19b388d9015f767f48393a81eb upstream.
Adds helpers to do SMC and HVC based on ARM SMC Calling Convention.
CONFIG_HAVE_ARM_SMCCC is enabled for architectures that may support the
SMC or HVC instruction. It's the responsibility of the caller to know if
the SMC instruction is supported by the platform.
This patch doesn't provide an implementation of the declared functions.
Later patches will bring in implementations and set
CONFIG_HAVE_ARM_SMCCC for ARM and ARM64 respectively.
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index b0d42234fba0..cc5e79dc4cda 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -174,6 +174,9 @@ config QCOM_SCM_64 def_bool y depends on QCOM_SCM && ARM64 +config HAVE_ARM_SMCCC + bool + source "drivers/firmware/broadcom/Kconfig" source "drivers/firmware/google/Kconfig" source "drivers/firmware/efi/Kconfig" |