Merge "fix(arm): don't override the gic redistributor frames" into integration

fix(arm): don't override the gic redistributor frames

Patch 75170704c made an oversight - it would provide a default value for
the gicr_frames variable but would always set to it, regardless of
whet

fix(arm): don't override the gic redistributor frames

Patch 75170704c made an oversight - it would provide a default value for
the gicr_frames variable but would always set to it, regardless of
whether the platform might want to use something different. The thinking
was to provide a default and then let each platform override it, however
the order was swapped.

To fix this, put the gic_set_gicr_frames() in bl31_platform_setup()
rather than arm_bl31_platform_setup(). This way, platforms that use the
default can still enjoy it automatically pulled in from common code,
platforms that need fully custom gicr_frames can simply set it, and
platforms that override bl31_platform_setup() for unrelated reasons only
have to redo the call to gic_set_gicr_frames(). This has a tiny benefit
over the old approach in that there will never be 2 gicr_frames arrays.

Change-Id: I734737d3bd37ddbb3286abcdd92c88676c68cdc3
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

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Merge "refactor(tc): neaten platform code after TC2 removal" into integration

refactor(tc): neaten platform code after TC2 removal

Now that TC2 has been removed, the only TC platforms
are TC3 and TC4. Therefore, it no longer makes sense
to have both tc-base and tc3-4-base dts

refactor(tc): neaten platform code after TC2 removal

Now that TC2 has been removed, the only TC platforms
are TC3 and TC4. Therefore, it no longer makes sense
to have both tc-base and tc3-4-base dtsi files.
This patch combines the two base TC dtsi files,
and removes tautological ifdefs in TC platform code.

Change-Id: I011b5fe1f645d6d53276007b11a17bd6cf952ecb
Signed-off-by: Ryan Everett <ryan.everett@arm.com>

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Merge "feat(tc): add support for configuring DSU settings" into integration

feat(tc): add support for configuring DSU settings

This patch allows tc platforms to update DSU
CLUSTERPWRDN_EL1 and CLUSTERPWRCTLR_EL1 settings.
TC22 and TC23 use the DSU-120. Currently
we use the

feat(tc): add support for configuring DSU settings

This patch allows tc platforms to update DSU
CLUSTERPWRDN_EL1 and CLUSTERPWRCTLR_EL1 settings.
TC22 and TC23 use the DSU-120. Currently
we use the reset values as default settings as
per the DSU-120 TRM.

Reference: https://developer.arm.com/documentation/102547/0201

Change-Id: I48e0b5bd5881612e9b8b804948260f69c25c34d9
Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>

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Merge "chore(tc): remove TC2 platform variant" into integration

chore(tc): remove TC2 platform variant

Remove TC2 platform support which was deprecated in the last release.

Change-Id: Ibf4a94a0168151ebc66eaca044a143c51e974a1f
Signed-off-by: Manish V Badarkhe <M

chore(tc): remove TC2 platform variant

Remove TC2 platform support which was deprecated in the last release.

Change-Id: Ibf4a94a0168151ebc66eaca044a143c51e974a1f
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

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Merge changes from topic "jc/tc_fw_handoff" into integration

* changes:
feat(tc): port BL31-BL33 interface to firmware handoff framework
feat(tc): port BL2-BL31 interface to firmware handoff fra

Merge changes from topic "jc/tc_fw_handoff" into integration

* changes:
feat(tc): port BL31-BL33 interface to firmware handoff framework
feat(tc): port BL2-BL31 interface to firmware handoff framework
feat(tc): port BL1-BL2 interface to firmware handoff framework

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feat(tc): port BL31-BL33 interface to firmware handoff framework

Adding support for this framework at the handoff boundary between
firmware stage BL31 and BL33 on TC.

Signed-off-by: Jayanth Dodderi

feat(tc): port BL31-BL33 interface to firmware handoff framework

Adding support for this framework at the handoff boundary between
firmware stage BL31 and BL33 on TC.

Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Change-Id: Ia6cd29c8b6cdda0a127a3bac02f6fa1dcfc07151

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Merge changes from topic "jc/tc_fw_handoff" into integration

* changes:
refactor(arm): simplify early platform setup function in BL31
refactor(arm): simplify early platform setup function in BL2

Merge changes from topic "jc/tc_fw_handoff" into integration

* changes:
refactor(arm): simplify early platform setup function in BL31
refactor(arm): simplify early platform setup function in BL2
feat(arm): add support for Transfer List creation

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refactor(arm): simplify early platform setup function in BL31

Refactor `arm_bl31_early_platform_setup` to accept generic u_register_t
values, enabling support for firmware handoff boot arguments in

refactor(arm): simplify early platform setup function in BL31

Refactor `arm_bl31_early_platform_setup` to accept generic u_register_t
values, enabling support for firmware handoff boot arguments in
common code. This simplifies the interface for early platform setup.

Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Change-Id: Iff20300d2372e1a9825827ddccbd1b3bc6751e40

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Merge changes I3d950e72,Id315a8fe,Ib62e6e9b,I1d0475b2 into integration

* changes:
perf(cm): drop ZCR_EL3 saving and some ISBs and replace them with root context
perf(psci): get PMF timestamps wi

Merge changes I3d950e72,Id315a8fe,Ib62e6e9b,I1d0475b2 into integration

* changes:
perf(cm): drop ZCR_EL3 saving and some ISBs and replace them with root context
perf(psci): get PMF timestamps with no cache flushes if possible
perf(amu): greatly simplify AMU context management
perf(mpmm): greatly simplify MPMM enablement

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perf(amu): greatly simplify AMU context management

The current code is incredibly resilient to updates to the spec and
has worked quite well so far. However, recent implementations expose a
weakness

perf(amu): greatly simplify AMU context management

The current code is incredibly resilient to updates to the spec and
has worked quite well so far. However, recent implementations expose a
weakness in that this is rather slow. A large part of it is written in
assembly, making it opaque to the compiler for optimisations. The
future proofness requires reading registers that are effectively
`volatile`, making it even harder for the compiler, as well as adding
lots of implicit barriers, making it hard for the microarchitecutre to
optimise as well.

We can make a few assumptions, checked by a few well placed asserts, and
remove a lot of this burden. For a start, at the moment there are 4
group 0 counters with static assignments. Contexting them is a trivial
affair that doesn't need a loop. Similarly, there can only be up to 16
group 1 counters. Contexting them is a bit harder, but we can do with a
single branch with a falling through switch. If/when both of these
change, we have a pair of asserts and the feature detection mechanism to
guard us against pretending that we support something we don't.

We can drop contexting of the offset registers. They are fully
accessible by EL2 and as such are its responsibility to preserve on
powerdown.

Another small thing we can do, is pass the core_pos into the hook.
The caller already knows which core we're running on, we don't need to
call this non-trivial function again.

Finally, knowing this, we don't really need the auxiliary AMUs to be
described by the device tree. Linux doesn't care at the moment, and any
information we need for EL3 can be neatly placed in a simple array.

All of this, combined with lifting the actual saving out of assembly,
reduces the instructions to save the context from 180 to 40, including a
lot fewer branches. The code is also much shorter and easier to read.

Also propagate to aarch32 so that the two don't diverge too much.

Change-Id: Ib62e6e9ba5be7fb9fb8965c8eee148d5598a5361
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

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Merge changes I712712d7,I1932500e,I75dda77e,I12f3b8a3,Ia72e5900 into integration

* changes:
refactor(rse)!: remove rse_comms_init
refactor(arm): switch to rse_mbx_init
refactor(rse): put MHU c

Merge changes I712712d7,I1932500e,I75dda77e,I12f3b8a3,Ia72e5900 into integration

* changes:
refactor(rse)!: remove rse_comms_init
refactor(arm): switch to rse_mbx_init
refactor(rse): put MHU code in a dedicated file
refactor(tc): add plat_rse_comms_init
refactor(arm)!: rename PLAT_MHU_VERSION flag

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refactor(tc): add plat_rse_comms_init

The same way it is done for neoverse_rd, create a plat_rse_comms_init()
function to call rse_comms_init().

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Ch

refactor(tc): add plat_rse_comms_init

The same way it is done for neoverse_rd, create a plat_rse_comms_init()
function to call rse_comms_init().

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I12f3b8a38a5369decb4b97f8aceeb0dc81cbea28

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Merge changes from topic "us_tc_trng" into integration

* changes:
feat(tc): get entropy with PSA Crypto API
feat(psa): add interface with RSE for retrieving entropy
fix(psa): guard Crypto APIs

Merge changes from topic "us_tc_trng" into integration

* changes:
feat(tc): get entropy with PSA Crypto API
feat(psa): add interface with RSE for retrieving entropy
fix(psa): guard Crypto APIs with CRYPTO_SUPPORT
feat(tc): enable trng
feat(tc): initialize the RSE communication in earlier phase

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feat(tc): initialize the RSE communication in earlier phase

Move the RSE MHU channel initialization to the platform setup phase,
this allows the services (e.g. TRNG service) to talk to RSE during th

feat(tc): initialize the RSE communication in earlier phase

Move the RSE MHU channel initialization to the platform setup phase,
this allows the services (e.g. TRNG service) to talk to RSE during the
service init function.

Change-Id: Id0ff6e49117008463f11b2dc3c585daca00f609c
Signed-off-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: Icen Zeyada <Icen.Zeyada2@arm.com>

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Merge changes from topic "mcn" into integration

* changes:
feat(tc): add MCN PMU nodes in dts for TC4
feat(tc): add 'kaslr-seed' node in device tree for TC3
feat(tc): enable MCN non-secure acc

Merge changes from topic "mcn" into integration

* changes:
feat(tc): add MCN PMU nodes in dts for TC4
feat(tc): add 'kaslr-seed' node in device tree for TC3
feat(tc): enable MCN non-secure access to pmu counters on TC4
feat(tc): define MCN related macros for TC4

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feat(tc): enable MCN non-secure access to pmu counters on TC4

MCN PMU counters are by default non-accesible from non-secure world,
so enable the non-secure access to those PMU counters so that linux

feat(tc): enable MCN non-secure access to pmu counters on TC4

MCN PMU counters are by default non-accesible from non-secure world,
so enable the non-secure access to those PMU counters so that linux
perf driver can read them.

Signed-off-by: Jagdish Gediya <jagdish.gediya@arm.com>
Signed-off-by: Icen Zeyada <Icen.Zeyada2@arm.com>
Change-Id: I1cf1f88f97e9062592fd5603a78fd36f15a15f89

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feat(tc): define MCN related macros for TC4

Define MCN related macros for TC4 to add TC4 specific MCN PMU
nodes in dts and to enable MCN PMU NS access in further commits.

Signed-off-by: Jagdish Ged

feat(tc): define MCN related macros for TC4

Define MCN related macros for TC4 to add TC4 specific MCN PMU
nodes in dts and to enable MCN PMU NS access in further commits.

Signed-off-by: Jagdish Gediya <jagdish.gediya@arm.com>
Signed-off-by: Icen Zeyada <Icen.Zeyada2@arm.com>
Change-Id: Ifc02fcd833888a9953fac404585468316aa0168c

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Merge "fix(tc): define status to fix SPM tests" into integration

fix(tc): define status to fix SPM tests

The failure was caused by missing a variable definition, `status`
in the RSE initialisation patch.

Change-Id: I937a39e20fae39f3a6d14fe66af578c166545301
Signe

fix(tc): define status to fix SPM tests

The failure was caused by missing a variable definition, `status`
in the RSE initialisation patch.

Change-Id: I937a39e20fae39f3a6d14fe66af578c166545301
Signed-off-by: Icen.Zeyada <Icen.Zeyada2@arm.com>

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Merge "fix(tc): eliminate unneeded MbedTLS dependency" into integration

fix(tc): eliminate unneeded MbedTLS dependency

The rse_platform_api.h file includes certain MbedTLS headers,
introducing an unnecessary dependency when building the TC
platform with RSE support unco

fix(tc): eliminate unneeded MbedTLS dependency

The rse_platform_api.h file includes certain MbedTLS headers,
introducing an unnecessary dependency when building the TC
platform with RSE support unconditionally.
However, these headers are not required, as the BL31
implementation only initializes RSE communication,
which does not rely on MbedTLS.

Change-Id: If45122aaf158be128f8978422fd870dbb0a0d090
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

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