core: fix header file guard names

Fixes header file guards macro name prefix (mostly missing occurrences)
that should reflect the file base directory sub-path where applicable.

Reviewed-by: Jens Wi

core: fix header file guard names

Fixes header file guards macro name prefix (mostly missing occurrences)
that should reflect the file base directory sub-path where applicable.

Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>

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core: arm: add notice to sm/psci.h and sm/std_smc.h

Adds missing notice in sm/psci.h and sm/std_smc.h that was not stated
when these header files were initially merged [1]. License is set
to BSD-2-C

core: arm: add notice to sm/psci.h and sm/std_smc.h

Adds missing notice in sm/psci.h and sm/std_smc.h that was not stated
when these header files were initially merged [1]. License is set
to BSD-2-Clause as per OP-TEE OS license model at the time of [1] and
up to now. Copyright is set to Linaro as per being the maintainer of
OP-TEE.

CC: Peng Fan <peng.fan@nxp.com>
Link: https://github.com/OP-TEE/optee_os/commit/319556cdc38514d0261bec0abf87627d0782f8e [1]
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>

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core: sm: support SMCCC v1.1 specification

SMCCC v1.1 specification: support defined function IDs with weak
handlers platform can override, as other PSCI function handler.
We could state we support

core: sm: support SMCCC v1.1 specification

SMCCC v1.1 specification: support defined function IDs with weak
handlers platform can override, as other PSCI function handler.
We could state we support v1.2 but Linux kernel v5.7-rc1 expects
strict v1.1 support.

unsigned long arm_arch_version(void);
returns SMCCC_V_1_1

unsigned long arm_arch_feature(unsigned long a1);
default supports version only

unsigned long arm_arch_soc_id(void);
unsigned long arm_arch_workaround_1(void);
unsigned long arm_arch_workaround_2(void);
default return ARM_SMCCC_RET_NOT_SUPPORTED

This helper is needed by Linux kernel (U-Boot) drivers that rely on
arm_smccc_v1_1() supports.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Forissier <jerome@forissier.org>

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core: arm: psci: pass nsec ctx to psci

Pass non-secure context to psci functions. When cpu/system suspends,
cpu may loose power, so when back to linux from tee, tee
needs to return to a linux resume

core: arm: psci: pass nsec ctx to psci

Pass non-secure context to psci functions. When cpu/system suspends,
cpu may loose power, so when back to linux from tee, tee
needs to return to a linux resume point, not the usual return address
after "smc" instruction. So we need to modify the mon_lr
value in non-secure context.

Psci runs in monitor mode, sm_get_nsec_ctx can not be used,
so pass the non-secure context pointer to the psci suspend function.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: arm: add PSCI support

Introduce basic PSCI support.
When CFG_PSCI_ARM32 is defined, PSCI functions will be enabled.
Add __weak property for the PSCI functions, developers could
have their own

core: arm: add PSCI support

Introduce basic PSCI support.
When CFG_PSCI_ARM32 is defined, PSCI functions will be enabled.
Add __weak property for the PSCI functions, developers could
have their own implementation.

PSCI is handled in monitor mode, and when finished, directly returns
to nsec world.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
[s/psci/PSCI/ in commit log. Rebase on top of master.]
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>

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