Merge changes I765a7fa0,Ic33f0b6d,I8d1a88c7,I381f96be,I698fa849, ... into integration

* changes:
fix(cpus): clear CPUPWRCTLR_EL1.CORE_PWRDN_EN_BIT on reset
chore(docs): drop the "wfi" from `pwr_

Merge changes I765a7fa0,Ic33f0b6d,I8d1a88c7,I381f96be,I698fa849, ... into integration

* changes:
fix(cpus): clear CPUPWRCTLR_EL1.CORE_PWRDN_EN_BIT on reset
chore(docs): drop the "wfi" from `pwr_domain_pwr_down_wfi`
chore(psci): drop skip_wfi variable
feat(arm): convert arm platforms to expect a wakeup
fix(cpus): avoid SME related loss of context on powerdown
feat(psci): allow cores to wake up from powerdown
refactor: panic after calling psci_power_down_wfi()
refactor(cpus): undo errata mitigations
feat(cpus): add sysreg_bit_toggle

show more ...

feat(arm): convert arm platforms to expect a wakeup

Newer cores in upcoming platforms may refuse to power down. The PSCI
library is already prepared for this so convert platform code to also
allow t

feat(arm): convert arm platforms to expect a wakeup

Newer cores in upcoming platforms may refuse to power down. The PSCI
library is already prepared for this so convert platform code to also
allow this. This is simple - drop the `wfi` + panic and let common code
deal with the fallout. The end result will be the same (sans the
message) except the platform will have fewer responsibilities. The only
exception is for cores being signalled to power off gracefully ahead of
system reset. That path must also be terminal so replace the end with
the same psci_pwrdown_cpu_end() to behave the same as the generic
implementation. It will handle wakeups and panic, hoping that the system
gets reset from under it. The dmb is upgraded to a dsb so no functional
change.

Change-Id: I381f96bec8532bda6ccdac65de57971aac42e7e8
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

show more ...

Merge changes from topic "RDN2_WARM_REBOOT_WITH_SGI" into integration

* changes:
feat(sgi): enable css implementation of warm reset
feat(scmi): send powerdown request to online secondary cpus

Merge changes from topic "RDN2_WARM_REBOOT_WITH_SGI" into integration

* changes:
feat(sgi): enable css implementation of warm reset
feat(scmi): send powerdown request to online secondary cpus
feat(plat/arm/css): add interrupt handler for reboot request
refactor(psci): move psci_do_pwrdown_sequence() out of private header
feat(plat/arm/css): add per-cpu power down support for warm reset
feat(scmi): set warm reboot entry point
fix(gicv3): update the affinity mask to 8 bit

show more ...

feat(plat/arm/css): add interrupt handler for reboot request

Add platform specific interrupt handler for handling the reboot of
all CPU's. On shutdown/reboot, only one CPU invoke PSCI and enter into

feat(plat/arm/css): add interrupt handler for reboot request

Add platform specific interrupt handler for handling the reboot of
all CPU's. On shutdown/reboot, only one CPU invoke PSCI and enter into
trusted firmware. The CPU which entered trusted firmware signals the
rest of the cores which are online using SGI to initiate power down
sequence. On receiving the SGI, the handler will power down the
GIC redistributor interface of the respective core, configure the power
control register and power down the CPU by executing wfi.

In addition to these changes, fix coding style issues that are not
directly related to the code being introduced in this patch.

Change-Id: I4917dfdc47be5ce7367bee629486a6344cdd706f
Signed-off-by: Pranav Madhu <pranav.madhu@arm.com>

show more ...

feat(plat/arm/css): add per-cpu power down support for warm reset

Add a new function to setup a SGI interrupt that will be used to trigger
a request for per-cpu power down when executing the PSCI SY

feat(plat/arm/css): add per-cpu power down support for warm reset

Add a new function to setup a SGI interrupt that will be used to trigger
a request for per-cpu power down when executing the PSCI SYSTEM_RESET
request. This will be used on CSS platform that require all the CPUs to
execute the CPU specific power down sequence to complete a warm reboot
sequence in which only the CPUs are power cycled.

Change-Id: I80da0f6c3cd0c5c442c82239ba1e1f773821a7f5
Signed-off-by: Pranav Madhu <pranav.madhu@arm.com>

show more ...

Merge changes from topics "rddaniel", "rdn1edge_dual" into integration

* changes:
plat/arm: add board support for rd-daniel platform
plat/arm/sgi: move GIC related constants to board files
pla

Merge changes from topics "rddaniel", "rdn1edge_dual" into integration

* changes:
plat/arm: add board support for rd-daniel platform
plat/arm/sgi: move GIC related constants to board files
platform/arm/sgi: add multi-chip mode parameter in HW_CONFIG dts
board/rdn1edge: add support for dual-chip configuration
drivers/arm/scmi: allow use of multiple SCMI channels
drivers/mhu: derive doorbell base address
plat/arm/sgi: include AFF3 affinity in core position calculation
plat/arm/sgi: add macros for remote chip device region
plat/arm/sgi: add chip_id and multi_chip_mode to platform variant info
plat/arm/sgi: move bl31_platform_setup to board file

show more ...

drivers/arm/scmi: allow use of multiple SCMI channels

On systems that have multiple platform components that can interpret the
SCMI messages, there is a need to support multiple SCMI channels (one
e

drivers/arm/scmi: allow use of multiple SCMI channels

On systems that have multiple platform components that can interpret the
SCMI messages, there is a need to support multiple SCMI channels (one
each to those platform components). Extend the existing SCMI interface
that currently supports only a single SCMI channel to support multiple
SCMI channels.

Change-Id: Ice4062475b903aef3b5e5bc37df364c9778a62c5
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>

show more ...

Merge changes from topic "mp/giv3-discovery" into integration

* changes:
Migrate ARM platforms to use the new GICv3 API
Adding new optional PSCI hook pwr_domain_on_finish_late
GICv3: Enable mu

Merge changes from topic "mp/giv3-discovery" into integration

* changes:
Migrate ARM platforms to use the new GICv3 API
Adding new optional PSCI hook pwr_domain_on_finish_late
GICv3: Enable multi socket GIC redistributor frame discovery

show more ...

Migrate ARM platforms to use the new GICv3 API

This patch invokes the new function gicv3_rdistif_probe() in the
ARM platform specific gicv3 driver. Since this API modifies the
shared GIC related dat

Migrate ARM platforms to use the new GICv3 API

This patch invokes the new function gicv3_rdistif_probe() in the
ARM platform specific gicv3 driver. Since this API modifies the
shared GIC related data structure, it must be invoked coherently
by using the platform specific pwr_domain_on_finish_late hook.

Change-Id: I6efb17d5da61545a1c5a6641b8f58472b31e62a8
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>

show more ...

Merge pull request #1726 from antonio-nino-diaz-arm/an/includes

Sanitise includes across codebase

Sanitise includes across codebase

Enforce full include path for includes. Deprecate old paths.

The following folders inside include/lib have been left unchanged:

- include/lib/cpus/${ARCH}
- inclu

Sanitise includes across codebase

Enforce full include path for includes. Deprecate old paths.

The following folders inside include/lib have been left unchanged:

- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}

The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).

For example, this patch had to be created because two headers were
called the same way: e0ea0928d5b7 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a282 ("drivers: add tzc380 support").

This problem was introduced in commit 4ecca33988b9 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.

Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.

Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

show more ...

Merge pull request #1699 from chandnich/sgi-mt-support

Add support to implement multi-threaded platforms for SGI

plat/css: allow platforms to define the system power domain level

The CSS_SYSTEM_PWR_DMN_LVL macro that defines the system power domain
level is fixed at ARM_PWR_LVL2 for all CSS platforms. However,

plat/css: allow platforms to define the system power domain level

The CSS_SYSTEM_PWR_DMN_LVL macro that defines the system power domain
level is fixed at ARM_PWR_LVL2 for all CSS platforms. However, the
system power domain level can be different for CSS platforms that
use multi-threaded CPUs.

So, in preparation towards adding support for platforms that use
multi-threaded CPUs, refactor the definition of CSS_SYSTEM_PWR_DMN_LVL
such that CSS_SYSTEM_PWR_DMN_LVL is uniquely defined for each of the
CSS platform.

Change-Id: Ia837b13f6865e71da01780993c048b45b7f36d85
Signed-off-by: Chandni Cherukuri <chandni.cherukuri@arm.com>

show more ...

Merge pull request #1673 from antonio-nino-diaz-arm/an/headers

Standardise header guards across codebase

Standardise header guards across codebase

All identifiers, regardless of use, that start with two underscores are
reserved. This means they can't be used in header guards.

The style that this proje

Standardise header guards across codebase

All identifiers, regardless of use, that start with two underscores are
reserved. This means they can't be used in header guards.

The style that this project is now to use the full name of the file in
capital letters followed by 'H'. For example, for a file called
"uart_example.h", the header guard is UART_EXAMPLE_H.

The exceptions are files that are imported from other projects:

- CryptoCell driver
- dt-bindings folders
- zlib headers

Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

show more ...

Merge pull request #1528 from antonio-nino-diaz-arm/an/libc

libc: Cleanup library

libc: Fix all includes in codebase

The codebase was using non-standard headers. It is needed to replace
them by the correct ones so that we can use the new libc headers.

Change-Id: I530f71d9510cb03

libc: Fix all includes in codebase

The codebase was using non-standard headers. It is needed to replace
them by the correct ones so that we can use the new libc headers.

Change-Id: I530f71d9510cb036e69fe79823c8230afe890b9d
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

show more ...

Merge pull request #1448 from npoushin/npoushin/sgi575-coverity-fixes

npoushin/sgi575 coverity fixes

plat/arm: css: Convert CSS_SYSTEM_PWR_STATE from macro to inline function

This is to fix a number of Coverity Scan DEADCODE defects, CID numbers
listed below, as reported from
https://scan.coverity.

plat/arm: css: Convert CSS_SYSTEM_PWR_STATE from macro to inline function

This is to fix a number of Coverity Scan DEADCODE defects, CID numbers
listed below, as reported from
https://scan.coverity.com/projects/arm-software-arm-trusted-firmware

CID 267023
CID 267022
CID 267020

Change-Id: I2963a799b210149e84ccab5c5b9082267ddfe337
Signed-off-by: Nariman Poushin <nariman.poushin@linaro.org>

show more ...

Merge pull request #1282 from robertovargas-arm/misra-changes

Misra changes

Fix MISRA rule 8.4 Part 2

Rule 8.4: A compatible declaration shall be visible when
an object or function with external linkage is defined

Fixed for:
make DEBUG=1 PLAT=juno LOG_LEVEL=50 a

Fix MISRA rule 8.4 Part 2

Rule 8.4: A compatible declaration shall be visible when
an object or function with external linkage is defined

Fixed for:
make DEBUG=1 PLAT=juno LOG_LEVEL=50 all

Change-Id: Ic8f611da734f356566e8208053296e6c62b54709
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

show more ...

Merge pull request #925 from dp-arm/dp/spdx

Use SPDX license identifiers

Use SPDX license identifiers

To make software license auditing simpler, use SPDX[0] license
identifiers instead of duplicating the license text in every file.

NOTE: Files that have been imported by

Use SPDX license identifiers

To make software license auditing simpler, use SPDX[0] license
identifiers instead of duplicating the license text in every file.

NOTE: Files that have been imported by FreeBSD have not been modified.

[0]: https://spdx.org/

Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>

show more ...

Merge branch 'integration' into tf_issue_461

Merge pull request #917 from soby-mathew/sm/sys_susp_css

CSS: Allow system suspend only via PSCI SYSTEM_SUSPEND API