arm64: FFH: Move ACPI specific code into drivers/acpi/arm64/

The ACPI FFH Opregion code can be moved out of arm64 arch code as
it just uses SMCCC. Move all the ACPI FFH Opregion code into
drivers/ac

arm64: FFH: Move ACPI specific code into drivers/acpi/arm64/

The ACPI FFH Opregion code can be moved out of arm64 arch code as
it just uses SMCCC. Move all the ACPI FFH Opregion code into
drivers/acpi/arm64/ffh.c

Signed-off-by: Sudeep Holla <[email protected]>
Acked-by: Catalin Marinas <[email protected]>
Acked-by: Hanjun Guo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>

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arm64: cpuidle: Move ACPI specific code into drivers/acpi/arm64/

The ACPI cpuidle LPI FFH code can be moved out of arm64 arch code as
it just uses SMCCC. Move all the ACPI cpuidle LPI FFH code into

arm64: cpuidle: Move ACPI specific code into drivers/acpi/arm64/

The ACPI cpuidle LPI FFH code can be moved out of arm64 arch code as
it just uses SMCCC. Move all the ACPI cpuidle LPI FFH code into
drivers/acpi/arm64/cpuidle.c

Signed-off-by: Sudeep Holla <[email protected]>
Acked-by: Catalin Marinas <[email protected]>
Acked-by: Hanjun Guo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>

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ACPI: arm64: Sort entries alphabetically

Sort the entries in the Makefile alphabetically.

Signed-off-by: Sudeep Holla <[email protected]>
Acked-by: Hanjun Guo <[email protected]>
Link: https:

ACPI: arm64: Sort entries alphabetically

Sort the entries in the Makefile alphabetically.

Signed-off-by: Sudeep Holla <[email protected]>
Acked-by: Hanjun Guo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>

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ACPI: processor: reduce CPUFREQ thermal reduction pctg for Tegra241

Current implementation of processor_thermal performs software throttling
in fixed steps of "20%" which can be too coarse for some

ACPI: processor: reduce CPUFREQ thermal reduction pctg for Tegra241

Current implementation of processor_thermal performs software throttling
in fixed steps of "20%" which can be too coarse for some platforms.
We observed some performance gain after reducing the throttle percentage.
Change the CPUFREQ thermal reduction percentage and maximum thermal steps
to be configurable. Also, update the default values of both for Nvidia
Tegra241 (Grace) SoC. The thermal reduction percentage is reduced to "5%"
and accordingly the maximum number of thermal steps are increased as they
are derived from the reduction percentage.

Signed-off-by: Srikar Srimath Tirumala <[email protected]>
Co-developed-by: Sumit Gupta <[email protected]>
Signed-off-by: Sumit Gupta <[email protected]>
Acked-by: Sudeep Holla <[email protected]>
Acked-by: Hanjun Guo <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

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ACPI: Move AMBA bus scan handling into arm64 specific directory

Commit fcea0ccf4fd7 ("ACPI: bus: Consolidate all arm specific
initialisation into acpi_arm_init()") moved all of the ARM-specific
init

ACPI: Move AMBA bus scan handling into arm64 specific directory

Commit fcea0ccf4fd7 ("ACPI: bus: Consolidate all arm specific
initialisation into acpi_arm_init()") moved all of the ARM-specific
initialization into acpi_arm_init(). However, acpi_amba.c being outside
of drivers/acpi/arm64 got ignored and hence acpi_amba_init() was not
moved into acpi_arm_init().

Move the AMBA platform bus support into arm64 specific folder and make
acpi_amba_init() part of acpi_arm_init().

Signed-off-by: Sudeep Holla <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

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ACPI: bus: Consolidate all arm specific initialisation into acpi_arm_init()

Move all of the ARM-specific initialization into one function namely
acpi_arm_init(), so it is not necessary to modify/upd

ACPI: bus: Consolidate all arm specific initialisation into acpi_arm_init()

Move all of the ARM-specific initialization into one function namely
acpi_arm_init(), so it is not necessary to modify/update bus.c every
time a new piece of it is added.

Cc: Lorenzo Pieralisi <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Suggested-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Robin Murphy <[email protected]>
Reviewed-by: Hanjun Guo <[email protected]>
Link: https://lore.kernel.org/r/CAJZ5v0iBZRZmV_oU+VurqxnVMbFN_ttqrL=cLh0sUH+=u0PYsw@mail.gmail.com
Signed-off-by: Sudeep Holla <[email protected]>
Reviewed-by: Lorenzo Pieralisi <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Shaoqin Huang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>

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ACPI: ARM Performance Monitoring Unit Table (APMT) initial support

ARM Performance Monitoring Unit Table describes the properties of PMU
support in ARM-based system. The APMT table contains a list o

ACPI: ARM Performance Monitoring Unit Table (APMT) initial support

ARM Performance Monitoring Unit Table describes the properties of PMU
support in ARM-based system. The APMT table contains a list of nodes,
each represents a PMU in the system that conforms to ARM CoreSight PMU
architecture. The properties of each node include information required
to access the PMU (e.g. MMIO base address, interrupt number) and also
identification. For more detailed information, please refer to the
specification below:
* APMT: https://developer.arm.com/documentation/den0117/latest
* ARM Coresight PMU:
https://developer.arm.com/documentation/ihi0091/latest

The initial support adds the detection of APMT table and generic
infrastructure to create platform devices for ARM CoreSight PMUs.
Similar to IORT the root pointer of APMT is preserved during runtime
and each PMU platform device is given a pointer to the corresponding
APMT node.

Signed-off-by: Besar Wicaksono <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Sudeep Holla <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>

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ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset device

ACPI for Arm Components 1.1 Platform Design Document v1.1 [0] specifices
Arm Generic Diagnostic Device Interface (AGDI). It al

ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset device

ACPI for Arm Components 1.1 Platform Design Document v1.1 [0] specifices
Arm Generic Diagnostic Device Interface (AGDI). It allows an admin to
issue diagnostic dump and reset via an SDEI event or an interrupt.
This patch implements SDEI path.

[0] https://developer.arm.com/documentation/den0093/latest/

Signed-off-by: Ilkka Koskinen <[email protected]>
Reviewed-by: Russell King (Oracle) <[email protected]>
Acked-by: Lorenzo Pieralisi <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

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ACPI: arm64: Move DMA setup operations out of IORT

Extract generic DMA setup code out of IORT, so it can be reused by VIOT.
Keep it in drivers/acpi/arm64 for now, since it could break x86
platforms

ACPI: arm64: Move DMA setup operations out of IORT

Extract generic DMA setup code out of IORT, so it can be reused by VIOT.
Keep it in drivers/acpi/arm64 for now, since it could break x86
platforms that haven't run this code so far, if they have invalid
tables.

Reviewed-by: Eric Auger <[email protected]>
Signed-off-by: Jean-Philippe Brucker <[email protected]>
Reviewed-by: Robin Murphy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Joerg Roedel <[email protected]>

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treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project

treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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acpi/arm64: Add GTDT table parse driver

This patch adds support for parsing arch timer info in GTDT,
provides some kernel APIs to parse all the PPIs and
always-on info in GTDT and export them.

By t

acpi/arm64: Add GTDT table parse driver

This patch adds support for parsing arch timer info in GTDT,
provides some kernel APIs to parse all the PPIs and
always-on info in GTDT and export them.

By this driver, we can simplify arm_arch_timer drivers, and
separate the ACPI GTDT knowledge from it.

Signed-off-by: Fu Wei <[email protected]>
Signed-off-by: Hanjun Guo <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Tested-by: Xiongfeng Wang <[email protected]>
Reviewed-by: Hanjun Guo <[email protected]>
Tested-by: Hanjun Guo <[email protected]>
Acked-by: Lorenzo Pieralisi <[email protected]>
Signed-off-by: Mark Rutland <[email protected]>

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ACPI: I/O Remapping Table (IORT) initial support

IORT shows representation of IO topology for ARM based systems.
It describes how various components are connected together on
parent-child basis e.g.

ACPI: I/O Remapping Table (IORT) initial support

IORT shows representation of IO topology for ARM based systems.
It describes how various components are connected together on
parent-child basis e.g. PCI RC -> SMMU -> ITS. Also see IORT spec.
http://infocenter.arm.com/help/topic/com.arm.doc.den0049b/DEN0049B_IO_Remapping_Table.pdf

Initial support allows to detect IORT table presence and save its
root pointer obtained through acpi_get_table(). The pointer validity
depends on acpi_gbl_permanent_mmap because if acpi_gbl_permanent_mmap
is not set while using IORT nodes we would dereference unmapped pointers.

For the aforementioned reason call acpi_iort_init() from acpi_init()
which guarantees acpi_gbl_permanent_mmap to be set at that point.

Add generic helpers which are helpful for scanning and retrieving
information from IORT table content. List of the most important helpers:
- iort_find_dev_node() finds IORT node for a given device
- iort_node_map_rid() maps device RID and returns IORT node which provides
final translation

IORT support is placed under drivers/acpi/arm64/ new directory due to its
ARM64 specific nature. The code there is considered only for ARM64.
The long term plan is to keep all ARM64 specific tables support
in this place e.g. GTDT table.

Signed-off-by: Tomasz Nowicki <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Hanjun Guo <[email protected]>
Reviewed-by: Lorenzo Pieralisi <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>

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