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>

show more ...

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>

show more ...

core: add dcache_clean_range_pou()

Adds dcache_clean_range_pou() which cleans the data cache to the point
of unification. This is exactly what's needed when later invalidating
the icache due to upda

core: add dcache_clean_range_pou()

Adds dcache_clean_range_pou() which cleans the data cache to the point
of unification. This is exactly what's needed when later invalidating
the icache due to updates in a page.

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

show more ...

core: cache_helpers_a{32,64}.S: remove section assignments

Since the FUNC and LOCAL_FUNC assembly macros now assign a section to
each assembly function the explicitly assigned sections in
cache_help

core: cache_helpers_a{32,64}.S: remove section assignments

Since the FUNC and LOCAL_FUNC assembly macros now assign a section to
each assembly function the explicitly assigned sections in
cache_helpers_a{32,64}.S are ignored. So remove the ignored section
assignments.

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

show more ...

arm.h: add CTR_WORD_SIZE

Adds a common define for the word size used by the CTR (cache type)
register.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jen

arm.h: add CTR_WORD_SIZE

Adds a common define for the word size used by the CTR (cache type)
register.

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

show more ...

core: update cache helpers

Updates AArch64 and ARMv7 cache helpers from lib/aarch32/cache_helpers.S
and lib/aarch64/cache_helpers.S in ARM-TF,
https://github.com/ARM-software/arm-trusted-firmware/tr

core: update cache helpers

Updates AArch64 and ARMv7 cache helpers from lib/aarch32/cache_helpers.S
and lib/aarch64/cache_helpers.S in ARM-TF,
https://github.com/ARM-software/arm-trusted-firmware/tree/2bd26faf62411c75111fea4b23c542865383b068

The imported routines only covers the inner cache. Already present ARMv7
cache routines are replaced by the new equivalent routines. The AArch64
routines are updated with the resent changes in ARM-TF.

The imported files are modified to better fit into OP-TEE, some
functions and defines are renamed.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (Hikey AArch{32,64} pager)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (Juno AArch{32,64} pager)
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

show more ...