refactor(context-mgmt): move FEAT_FGT save/restore code into C

At the moment we do the EL2 context save/restore sequence in assembly,
where it is just guarded by #ifdef statement for the build time

refactor(context-mgmt): move FEAT_FGT save/restore code into C

At the moment we do the EL2 context save/restore sequence in assembly,
where it is just guarded by #ifdef statement for the build time flags.
This does not cover the FEAT_STATE_CHECK case, where we need to check
for the runtime availability of a feature.

To simplify this extension, and to avoid writing too much code in
assembly, move that sequence into C: it is called from C context
anyways.

This protects the C code with the new version of the is_xxx_present()
check, which combines both build time and runtime check, as necessary,
and allows the compiler to optimise the calls aways, if we don't need
them.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Change-Id: I7c91bec60efcc00a43429dc0381f7e1c203be780

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refactor(amu): convert FEAT_AMUv1 to new scheme

For the FGT context save/restore operation, we need to look at the AMUv1
feature, so migrate this one over to the new scheme.
This uses the generic ch

refactor(amu): convert FEAT_AMUv1 to new scheme

For the FGT context save/restore operation, we need to look at the AMUv1
feature, so migrate this one over to the new scheme.
This uses the generic check function in feat_detect.c, and splits the
feature check into two functions, as was done before for FEAT_FGT.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Change-Id: I95ad797f15001b2c9d1800c9d4af33fba79e136f

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refactor(cpufeat): decouple FGT feature detection and build flags

Split the feature check for FEAT_FGT into two parts:
- A boolean function that just evaluates whether the feature is usable.
This

refactor(cpufeat): decouple FGT feature detection and build flags

Split the feature check for FEAT_FGT into two parts:
- A boolean function that just evaluates whether the feature is usable.
This takes build time flags into account, and only evaluates the CPU
feature ID registers when the flexible FEAT_STATE_CHECK method is
used.
- A "raw" function that returns the unfiltered CPU feature ID register.

Change the callers where needed, to give them the version they actually
want.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Change-Id: I9a041132d280451f5d9f653a62904f603b2a916d

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refactor(cpufeat): check FEAT_FGT in a new way

To implement proper runtime checking of features, and to be able to
extend feat_detect.c to catch other cases, rework the FEAT_FGT check to
directly ca

refactor(cpufeat): check FEAT_FGT in a new way

To implement proper runtime checking of features, and to be able to
extend feat_detect.c to catch other cases, rework the FEAT_FGT check to
directly call a generic function instead of providing a trivial specific
one. The #ifdef is moved into the function, and rewritten as a proper C
if statement.
We need to force the compiler to inline that function, otherwise the
optimisation won't work, once we exceed a certain number of callers.

This starts with FEAT_FGT, but all the other features will be moved over
eventually, in separate patches.

For all features checked this way, we delay the panic() until after
every feature has been checked, to list them all during one run.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Change-Id: Ic576922ff2c4f8d3c1b87b5843b3626729fe4514

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refactor(cpufeat): move helpers into .c file, rename FEAT_STATE_

The FEATURE_DETECTION functionality had some definitions in a header
file, although they were only used internally in the .c file.
Mo

refactor(cpufeat): move helpers into .c file, rename FEAT_STATE_

The FEATURE_DETECTION functionality had some definitions in a header
file, although they were only used internally in the .c file.
Move them over there, since there are of no interest to other users.

Also use the opportuntiy to rename the less telling FEAT_STATE_[12]
names, and let the "0" case join the game. We use DISABLED, ALWAYS, and
CHECK now, so that the casual reader has some idea what those numbers
are supposed to mean.

feature_panic() becomes "static inline", since disabling all features
makes it unused, so the compiler complains otherwise.

Finally add a new category "cpufeat" to cover CPU feature related
changes.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Change-Id: If0c8ba91ad22440260ccff383c33bdd055eefbdc

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feat(aarch64): make ID system register reads non-volatile

Our system register access function wrappers are using "volatile"
inline assembly instructions. On the first glance this is a good idea,
sin

feat(aarch64): make ID system register reads non-volatile

Our system register access function wrappers are using "volatile"
inline assembly instructions. On the first glance this is a good idea,
since many system registers have side effects, and we don't want the
compiler to optimise or reorder them (what "volatile" prevents).

However this also naturally limits the compiler's freedom to optimise
code better, and those volatile properties don't apply to every type of
system register. One example are the CPU ID registers, which have
constant values, are side-effect free and read-only.

Introduce a new wrapper type that drops the volatile keyword, and use
that for the wrappers instantiating ID register accessors.

This allows the compiler to freely optimise those instructions away, if
their result isn't actually used, which can trigger further
optimisations.

Change-Id: I3c64716ae4f4bf603f0ea57b652bd50bcc67bb0e
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

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feat(rss): add TC platform UUIDs for RSS images

Add platform fiptool and UUIDs to the TC platform, to allow RSS images
to be inserted into and used from FIPs

Change-Id: Ic8e11bd4a766bdc616af7dee60d

feat(rss): add TC platform UUIDs for RSS images

Add platform fiptool and UUIDs to the TC platform, to allow RSS images
to be inserted into and used from FIPs

Change-Id: Ic8e11bd4a766bdc616af7dee60d44fc5d1f6e7b6
Signed-off-by: Raef Coles <raef.coles@arm.com>

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docs: change security advisories notification channel

Our documentation currently says that new security advisories will be
announced on the project's issue tracker. However, this issue tracker
is b

docs: change security advisories notification channel

Our documentation currently says that new security advisories will be
announced on the project's issue tracker. However, this issue tracker
is barely used by TF-A community and the software it is based on is
getting deprecated. Thus from now on, security advisories will rather
be announced on the project's mailing list.

Update TF-A documentation to reflect that.

Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Change-Id: If2f635795e0af4c794015a025899bfcc7116ab38

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fix(versal): print proper atf handoff source

Versal uses PLM in the boot flow and printing FSBL in the log for
handoff parameters is misleading. Print proper source of TF-A
handoff parameters.

Chan

fix(versal): print proper atf handoff source

Versal uses PLM in the boot flow and printing FSBL in the log for
handoff parameters is misleading. Print proper source of TF-A
handoff parameters.

Change-Id: I331e2eac2f5d30beed8573940ae02094254a759b
Signed-off-by: Akshay Belsare <akshay.belsare@amd.com>

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fix(libc): remove __putchar alias

This issue was triggered by sparse tool:
lib/libc/putchar.c:9:5: warning:
symbol '__putchar' was not declared. Should it be static?
Instead of setting __putchar as

fix(libc): remove __putchar alias

This issue was triggered by sparse tool:
lib/libc/putchar.c:9:5: warning:
symbol '__putchar' was not declared. Should it be static?
Instead of setting __putchar as static, just remove the function and
directly use putchar() with a weak attribute.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: Ib35e4ba064f06010851bb860269b08462fe3d3bd

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refactor(mediatek): add new LPM API for further extension

Add new LPM API `mt_lp_rm_find_constraint` and `mt_lp_rm_run_constraint`
for further extension.

Signed-off-by: Liju-Clr Chen <liju-clr.chen

refactor(mediatek): add new LPM API for further extension

Add new LPM API `mt_lp_rm_find_constraint` and `mt_lp_rm_run_constraint`
for further extension.

Signed-off-by: Liju-Clr Chen <liju-clr.chen@mediatek.com>
Change-Id: I8298811e03227285a7d086166edf9e87471f74b4

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refactor(mediatek): change the parameters of LPM API

Change the parameters of the LPM API for further extension.

Change-Id: Id8897c256c2118d00c6b9f3e7424ebc6100f02eb
Signed-off-by: Liju-Clr Chen <l

refactor(mediatek): change the parameters of LPM API

Change the parameters of the LPM API for further extension.

Change-Id: Id8897c256c2118d00c6b9f3e7424ebc6100f02eb
Signed-off-by: Liju-Clr Chen <liju-clr.chen@mediatek.com>

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refactor(mediatek): change LPM header file path for further extension

Move `mt_lp_rm.h` to `plat/mediatek/include/lpm` for further extension.

Change-Id: If377ce6791ce80f82643b0f2466eb0f1aa5aa40b
Si

refactor(mediatek): change LPM header file path for further extension

Move `mt_lp_rm.h` to `plat/mediatek/include/lpm` for further extension.

Change-Id: If377ce6791ce80f82643b0f2466eb0f1aa5aa40b
Signed-off-by: Liju-Clr Chen <liju-clr.chen@mediatek.com>

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feat(mt8188): keep infra and peri on when system suspend

In order to wake up system from USB devices, keep infra and peri on
when system suspend.

Change-Id: I0a0eb2e72709b0cc1bf11b36241a50cb5d85d9b

feat(mt8188): keep infra and peri on when system suspend

In order to wake up system from USB devices, keep infra and peri on
when system suspend.

Change-Id: I0a0eb2e72709b0cc1bf11b36241a50cb5d85d9b8
Signed-off-by: Shaocheng Wang <shaocheng.wang@mediatek.corp-partner.google.com>

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feat(mt8188): enable SPM and LPM

Enable SPM and LPM features for MT8188.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Change-Id: Ib3e2b305e9e3cf5a67e6e787ff942831b5ff28cd

feat(mt8188): add SPM feature support

Add SPM low power functions, such as system suspend.

Change-Id: I6d1ad847a81ba9c347ab6fb8a8cb8c69004b7add
Signed-off-by: James Liao <jamesjj.liao@mediatek.com>

feat(mt8188): add MT8188 SPM support

Add SPM basic functions including SPM init.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Change-Id: I5d4860685c15f3b8d555e697837862287f0c303e

feat(mediatek): add SPM's SSPM notifier

The notifier is used to notify SSPM to sleep when system suspend or
notify SSPM to wakeup when system resume.

Change-Id: I027ca356a84ea1e58be54a8a5eb302b3b96

feat(mediatek): add SPM's SSPM notifier

The notifier is used to notify SSPM to sleep when system suspend or
notify SSPM to wakeup when system resume.

Change-Id: I027ca356a84ea1e58be54a8a5eb302b3b96c2e22
Signed-off-by: James Liao <jamesjj.liao@mediatek.com>

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feat(mt8188): add the register definitions accessed by SPM

SPM needs to access some modules' registers to decide its sleep
behavior. This patch add these register definitions to platform_def.h.

Sig

feat(mt8188): add the register definitions accessed by SPM

SPM needs to access some modules' registers to decide its sleep
behavior. This patch add these register definitions to platform_def.h.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Change-Id: I3bebe74e367d5f6a7b59563036e18a83a3ef31e9

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feat(mediatek): add new features of LPM

Add new functions and intefaces of LPM to support more interactions
between LPM providers and users.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Ch

feat(mediatek): add new features of LPM

Add new functions and intefaces of LPM to support more interactions
between LPM providers and users.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Change-Id: I8ebbda0c0ef5be3a7a388a38c09424ebf785996f

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refactor(el3_runtime): remove unnecessary assembly macros

Following macros removed
- handle_async_ea : It duplicates "check_and_unmask_ea" functionality
- check_if_serror_from_EL3: This macro is

refactor(el3_runtime): remove unnecessary assembly macros

Following macros removed
- handle_async_ea : It duplicates "check_and_unmask_ea" functionality
- check_if_serror_from_EL3: This macro is small and called only once,
replace this macro with instructions at the caller.

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: Id7eec6263ec23cc8792139f491c563f616fd3618

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fix(console): correct scopes for console symbols

console_state is only used in multi_console.c, it is then declared as
static. console_list is used by several files, declare it as extern.
This corre

fix(console): correct scopes for console symbols

console_state is only used in multi_console.c, it is then declared as
static. console_list is used by several files, declare it as extern.
This corrects the 2 sparse warnings:
drivers/console/multi_console.c:13:11: warning: symbol 'console_list'
was not declared. Should it be static?
drivers/console/multi_console.c:14:9: warning: symbol 'console_state'
was not declared. Should it be static?

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: Id1891595906c258e8cb8aa325226f0a43723ca0e

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fix(auth): use NULL instead of 0 for pointer check

This was triggered by sparse tool:
drivers/auth/mbedtls/mbedtls_x509_parser.c:481:42: warning:
Using plain integer as NULL pointer

Signed-off-by:

fix(auth): use NULL instead of 0 for pointer check

This was triggered by sparse tool:
drivers/auth/mbedtls/mbedtls_x509_parser.c:481:42: warning:
Using plain integer as NULL pointer

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I392316c2a81ef8da7597e35f136e038f152d19d1

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fix(io): compare function pointers with NULL

The ops->read and ops->write existence was checked with 0, change it
to NULL.
This corrects sparse issues:
drivers/io/io_block.c:272:9: warning:
Using p

fix(io): compare function pointers with NULL

The ops->read and ops->write existence was checked with 0, change it
to NULL.
This corrects sparse issues:
drivers/io/io_block.c:272:9: warning:
Using plain integer as NULL pointer
drivers/io/io_block.c:384:9: warning:
Using plain integer as NULL pointer
drivers/io/io_block.c:384:9: warning:
Using plain integer as NULL pointer

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I039050a645107523d8263ddf820e539c260d956c

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fix(fdt-wrappers): use correct prototypes

These issues were triggered by sparse tool:
common/fdt_wrappers.c:209:36:
warning: incorrect type in assignment (different base types)
expected unsigned

fix(fdt-wrappers): use correct prototypes

These issues were triggered by sparse tool:
common/fdt_wrappers.c:209:36:
warning: incorrect type in assignment (different base types)
expected unsigned long long [usertype]
got restricted fdt64_t
common/fdt_wrappers.c:211:36:
warning: incorrect type in assignment (different base types)
expected unsigned int [usertype]
got restricted fdt32_t
common/fdt_wrappers.c:401:45:
warning: incorrect type in argument 1 (different base types)
expected restricted fdt32_t const [usertype] *prop
got unsigned int const [usertype] *value
common/fdt_wrappers.c:402:52:
warning: incorrect type in argument 1 (different base types)
expected restricted fdt32_t const [usertype] *prop
got unsigned int const [usertype] *
common/fdt_wrappers.c:404:66:
warning: incorrect type in argument 1 (different base types)
expected restricted fdt32_t const [usertype] *prop
got unsigned int const [usertype] *

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I32067607cd4da1897f0ce5d8e1e2d51e044ab815

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