gic v3: Fix width of types of helper functions

Change-Id: I08447b44fffb6e54f9fab957eee369ccbda4247a
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

gic: Fix types

Change-Id: I6a2adef87c20f9279446a54b7e69618fba3d2a25
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

gic: Fix definitions

Change-Id: I945029ca26ea2e63f0d92c5f33019b882f23bd72
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

gic v3: Turn macros into static inline functions

Change-Id: Ib587f12f36810fc7d4f4b8f575195554299b8ed4
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Merge pull request #1399 from danielboulby-arm/db/MISRA

MISRA 5.1, 5.3 & 5.7 compliance changes

Fix MISRA Rule 5.3 Part 2

Use a _ prefix for Macro arguments to prevent that argument from
hiding variables of the same name in the outer scope

Rule 5.3: An identifier declared in an inner scope sh

Fix MISRA Rule 5.3 Part 2

Use a _ prefix for Macro arguments to prevent that argument from
hiding variables of the same name in the outer scope

Rule 5.3: An identifier declared in an inner scope shall not
hide an identifier declared in an outer scope

Fixed For:
make LOG_LEVEL=50 PLAT=fvp

Change-Id: I67b6b05cbad4aeca65ce52981b4679b340604708
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>

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Fix MISRA Rule 5.1

Rule 5.1: External identifiers shall be distinct

Some of the identifier names in the GICv3 driver were so long that the
first 31 characters were identical. This patch shortens th

Fix MISRA Rule 5.1

Rule 5.1: External identifiers shall be distinct

Some of the identifier names in the GICv3 driver were so long that the
first 31 characters were identical. This patch shortens these names to
make sure they are different.

Fixed for:
LOG_LEVEL=50 PLAT=fvp

Change-Id: Iecd551e3a015d144716b87b42c83dd3ab8c34d90
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>

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

Misra changes

Fix MISRA rule 8.4 Part 1

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=fvp LOG_LEVEL=50 al

Fix MISRA rule 8.4 Part 1

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=fvp LOG_LEVEL=50 all

Change-Id: I7c2ad3f5c015411c202605851240d5347e4cc8c7
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

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Merge pull request #1152 from jeenu-arm/ehf-and-sdei

EHF and SDEI

GIC: Fix Group 0 enabling

At present, the GIC drivers enable Group 0 interrupts only if there are
Secure SPIs listed in the interrupt properties/list. This means that,
even if there are Group 0 SGIs

GIC: Fix Group 0 enabling

At present, the GIC drivers enable Group 0 interrupts only if there are
Secure SPIs listed in the interrupt properties/list. This means that,
even if there are Group 0 SGIs/PPIs configured, the group remained
disabled in the absence of a Group 0 SPI.

Modify both GICv2 and GICv3 SGI/PPI configuration to enable Group 0 when
corresponding SGIs/PPIs are present.

Change-Id: Id123e8aaee0c22b476eebe3800340906d83bbc6d
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

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Merge pull request #1130 from jeenu-arm/gic-patches

New GIC APIs and specifying interrupt propertes

GIC: Allow specifying interrupt properties

The GIC driver initialization currently allows an array of interrupts to
be configured as secure. Future use cases would require more interrupt
configurati

GIC: Allow specifying interrupt properties

The GIC driver initialization currently allows an array of interrupts to
be configured as secure. Future use cases would require more interrupt
configuration other than just security, such as priority.

This patch introduces a new interrupt property array as part of both
GICv2 and GICv3 driver data. The platform can populate the array with
interrupt numbers and respective properties. The corresponding driver
initialization iterates through the array, and applies interrupt
configuration as required.

This capability, and the current way of supplying array (or arrays, in
case of GICv3) of secure interrupts, are however mutually exclusive.
Henceforth, the platform should supply either:

- A list of interrupts to be mapped as secure (the current way).
Platforms that do this will continue working as they were. With this
patch, this scheme is deprecated.

- A list of interrupt properties (properties include interrupt group).
Individual interrupt properties are specified via. descriptors of
type 'interrupt_prop_desc_t', which can be populated with the macro
INTR_PROP_DESC().

A run time assert checks that the platform doesn't specify both.

Henceforth the old scheme of providing list of secure interrupts is
deprecated. When built with ERROR_DEPRECATED=1, GIC drivers will require
that the interrupt properties are supplied instead of an array of secure
interrupts.

Add a section to firmware design about configuring secure interrupts.

Fixes ARM-software/tf-issues#262

Change-Id: I8eec29e72eb69dbb6bce77879febf32c95376942
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

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GIC: Add API to set/clear interrupt pending

API documentation updated.

Change-Id: I14e33cfc7dfa93257c82d76fae186b17a1b6d266
Co-authored-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Jeenu Viswa

GIC: Add API to set/clear interrupt pending

API documentation updated.

Change-Id: I14e33cfc7dfa93257c82d76fae186b17a1b6d266
Co-authored-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

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GIC: Add APIs to enable and disable interrupt

API documentation updated.

Change-Id: Ice7511f8df5356851001d2f7dc2a46cfe318f9ba
Co-authored-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Jeenu Vis

GIC: Add APIs to enable and disable interrupt

API documentation updated.

Change-Id: Ice7511f8df5356851001d2f7dc2a46cfe318f9ba
Co-authored-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

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GIC: Add API to get interrupt active status

API documentation updated.

Change-Id: I6d61785af0d5330930c709de971a904dc7c3516c
Co-authored-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Jeenu Viswa

GIC: Add API to get interrupt active status

API documentation updated.

Change-Id: I6d61785af0d5330930c709de971a904dc7c3516c
Co-authored-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

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Merge pull request #1116 from soby-mathew/sm/gicv3_save_restore

GICv3 context save and restore

GICv3: ITS architectural save and restore helpers

This patch adds functions to save and restore GICv3 ITS registers during
system suspend. Please note that the power management of GIC ITS is
impleme

GICv3: ITS architectural save and restore helpers

This patch adds functions to save and restore GICv3 ITS registers during
system suspend. Please note that the power management of GIC ITS is
implementation defined. These functions only implements the
architectural part of the ITS power management and they do not restore
memory structures or register content required to support ITS. Even if
the ITS implementation stores structures in memory, an implementation
defined power down sequence is likely to be required to flush some
internal ITS caches to memory. If such implementation defined sequence
is not followed, the platform must ensure that the ITS is not power
gated during system suspend.

Change-Id: I5f31e5541975aa7dcaab69b0b7f67583c0e27678
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>

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GICv3: add functions for save and restore

During system suspend, the GICv3 Distributor and Redistributor context
can be lost due to power gating of the system power domain. This means
that the GICv3

GICv3: add functions for save and restore

During system suspend, the GICv3 Distributor and Redistributor context
can be lost due to power gating of the system power domain. This means
that the GICv3 context needs to be saved prior to system suspend and
restored on wakeup. Currently the consensus is that the Firmware should
be in charge of this. See tf-issues#464 for more details.

This patch introduces helper APIs in the GICv3 driver to save and
restore the Distributor and Redistributor contexts. The GICv3 ITS
context is not considered in this patch because the specification says
that the details of ITS power management is implementation-defined.
These APIs are expected to be appropriately invoked by the platform
layer during system suspend.

Fixes ARM-software/tf-issues#464

Change-Id: Iebb9c6770ab8c4d522546f161fa402d2fe02ec00
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>

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GICv3: turn some macros into inline functions

Tidy up the code a bit by turning some macros into inline functions
which allows to remove the do/while(0) idiom and backslashes at the end
of the line.

GICv3: turn some macros into inline functions

Tidy up the code a bit by turning some macros into inline functions
which allows to remove the do/while(0) idiom and backslashes at the end
of the line.

Change-Id: Ie41a4ea4a4da507f7b925247b53e85019101d717
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>

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Merge pull request #961 from jeenu-arm/gic-600

Introduce ARM GIC-600 driver

Introduce ARM GIC-600 driver

ARM GIC-600 IP complies with ARM GICv3 architecture, but among others,
implements a power control register in the Redistributor frame. This
register must be programmed t

Introduce ARM GIC-600 driver

ARM GIC-600 IP complies with ARM GICv3 architecture, but among others,
implements a power control register in the Redistributor frame. This
register must be programmed to mark the frame as powered on, before
accessing other registers in the frame. Rest of initialization sequence
remains the same.

The driver provides APIs for Redistributor power management, and
overrides those in the generic GICv3 driver. The driver data is shared
between generic GICv3 driver and that of GIC-600.

For FVP platform, the GIC-600 driver is chosen when FVP_USE_GIC_DRIVER
is set to FVP_GIC600. Also update user guide.

Change-Id: I321b2360728d69f6d4b0a747b2cfcc3fe5a20d67
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

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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>

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Merge pull request #678 from soby-mathew/sm/PSCI_AArch32

Introduce AArch32 support for PSCI library