core: mm: Rename "mva" to "va" for TLB operations

The terminology "mva" is specific for older ARM architecture which has
FCSE extension. To support multiple architecture, it would be good to
rename

core: mm: Rename "mva" to "va" for TLB operations

The terminology "mva" is specific for older ARM architecture which has
FCSE extension. To support multiple architecture, it would be good to
rename "mva" to common terminology, such as "va". This PR renames "mva"
to "va" in TLB operations for ARM64 and RISC-V. For ARM32, "mva" is
reserved because it is really defined in ARM32's documentations.

Signed-off-by: Alvin Chang <alvinga@andestech.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>

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arm32: fold UNWIND(.fnstart/.fnend) into the FUNC macros

This change applies to arm32 assembler sources.

Instead of using UNWIND(.fnstart) after FUNC or LOCAL_FUNC and
UNWIND(.fnend) before END_FUN

arm32: fold UNWIND(.fnstart/.fnend) into the FUNC macros

This change applies to arm32 assembler sources.

Instead of using UNWIND(.fnstart) after FUNC or LOCAL_FUNC and
UNWIND(.fnend) before END_FUNC, let's fold these statements into the
FUNC macros.

The .fnstart/.fnend directives mark the start and end of a function
with an unwind table entry (.ARM.exidx) and therefore a function
without them has no entry and cannot be unwound. This means that a
stack dump (on abort or panic) would stop when reaching such a
function.

As a result of this patch, a small number of functions now have an
entry in the unwind table when they had none before (the functions
which were using FUNC or LOCAL_FUNC but had no .fnstart/.fnend). It was
almost always a bug and this pacth only increases the size of the
.ARM.exidx section by a few bytes (tested on QEMU).

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

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arm32: move the UNWIND() macro to <asm.S>

All the users of the UNWIND() macro include <asm.S> already, which is
therefore a good place to define this macro. Let's move it from
<kernel/unwind.h> to <

arm32: move the UNWIND() macro to <asm.S>

All the users of the UNWIND() macro include <asm.S> already, which is
therefore a good place to define this macro. Let's move it from
<kernel/unwind.h> to <asm.S>, remove a couple of duplicates in
assembler files, and drop the useless includes.

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

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core: remove useless .section directives

A few assembler files contain ".section .text.<something>" but these
sections do not appear to be used anywhere. In addition, the functions
defined in the fi

core: remove useless .section directives

A few assembler files contain ".section .text.<something>" but these
sections do not appear to be used anywhere. In addition, the functions
defined in the files are always put in their own section anyway,
(.text.<function_name>), because of the -ffunction-sections flag.
Therefore, let's remove the useless directives.

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

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Remove license notice from STMicroelectronics files

Since a while the source files license info are defined by SPDX
identifiers. We can safely remove the verbose license text from the
files that are

Remove license notice from STMicroelectronics files

Since a while the source files license info are defined by SPDX
identifiers. We can safely remove the verbose license text from the
files that are owned by either only STMicroelectronics or only both
Linaro and STMicroelectronics.

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

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Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] wa

Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] was used to double check the license matching
code in the Python script. All the licenses detected by scancode are
either detected by spdxify.py, or have no SPDX identifier, or are false
matches.

Link: [1] https://spdx.org/licenses/
Link: [2] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Link: [3] https://github.com/nexB/scancode-toolkit
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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core: tlbi_asid() handle kernel mode ASID too

When invalidating an ASID (lowest bit 0), clear the paired ASID (lowest
bit 1)too.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed

core: tlbi_asid() handle kernel mode ASID too

When invalidating an ASID (lowest bit 0), clear the paired ASID (lowest
bit 1)too.

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

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core: arm: rename TLB maintenance files

ssvce_aXX.S and tz_ssvce.h now only provide TLB maintenance support.
This change renames the source and header files accordingly.

Signed-off-by: Etienne Carr

core: arm: rename TLB maintenance files

ssvce_aXX.S and tz_ssvce.h now only provide TLB maintenance support.
This change renames the source and header files accordingly.

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

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