History log of /openbmc/linux/drivers/acpi/numa/Kconfig (Results 1 – 25 of 25)
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Revision tags: v6.6.67, v6.6.66, v6.6.65, v6.6.64, v6.6.63, v6.6.62, v6.6.61, v6.6.60, v6.6.59, v6.6.58, v6.6.57, v6.6.56, v6.6.55, v6.6.54, v6.6.53, v6.6.52, v6.6.51, v6.6.50, v6.6.49, v6.6.48, v6.6.47, v6.6.46, v6.6.45, v6.6.44, v6.6.43, v6.6.42, v6.6.41, v6.6.40, v6.6.39, v6.6.38, v6.6.37, v6.6.36, v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30, v6.6.29, v6.6.28, v6.6.27, v6.6.26, v6.6.25, v6.6.24, v6.6.23, v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3, v6.5.2, v6.1.51, v6.5.1, v6.1.50, v6.5, v6.1.49, v6.1.48, v6.1.46, v6.1.45, v6.1.44, v6.1.43, v6.1.42, v6.1.41, v6.1.40, v6.1.39, v6.1.38, v6.1.37, v6.1.36, v6.4, v6.1.35, v6.1.34, v6.1.33, v6.1.32, v6.1.31, v6.1.30, v6.1.29, v6.1.28, v6.1.27, v6.1.26, v6.3, v6.1.25, v6.1.24, v6.1.23, v6.1.22, v6.1.21, v6.1.20, v6.1.19, v6.1.18, v6.1.17, v6.1.16, v6.1.15, v6.1.14, v6.1.13, v6.2, v6.1.12, v6.1.11, v6.1.10, v6.1.9, v6.1.8, v6.1.7, v6.1.6, v6.1.5, v6.0.19, v6.0.18, v6.1.4, v6.1.3, v6.0.17, v6.1.2, v6.0.16, v6.1.1, v6.0.15, v6.0.14, v6.0.13, v6.1, v6.0.12, v6.0.11, v6.0.10, v5.15.80, v6.0.9, v5.15.79, v6.0.8, v5.15.78, v6.0.7, v5.15.77, v5.15.76, v6.0.6, v6.0.5, v5.15.75, v6.0.4, v6.0.3, v6.0.2, v5.15.74, v5.15.73, v6.0.1, v5.15.72, v6.0, v5.15.71, v5.15.70, v5.15.69, v5.15.68, v5.15.67, v5.15.66, v5.15.65, v5.15.64, v5.15.63, v5.15.62, v5.15.61, v5.15.60, v5.15.59, v5.19, v5.15.58, v5.15.57, v5.15.56, v5.15.55, v5.15.54, v5.15.53, v5.15.52, v5.15.51, v5.15.50, v5.15.49, v5.15.48, v5.15.47, v5.15.46, v5.15.45, v5.15.44, v5.15.43, v5.15.42, v5.18, v5.15.41, v5.15.40, v5.15.39, v5.15.38, v5.15.37, v5.15.36, v5.15.35, v5.15.34, v5.15.33, v5.15.32, v5.15.31, v5.17, v5.15.30, v5.15.29, v5.15.28, v5.15.27, v5.15.26, v5.15.25, v5.15.24, v5.15.23, v5.15.22, v5.15.21, v5.15.20, v5.15.19, v5.15.18, v5.15.17, v5.4.173, v5.15.16, v5.15.15
# 762f99f4 15-Jan-2022 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 5.17 merge window.


Revision tags: v5.16, v5.15.10, v5.15.9, v5.15.8
# 86329873 09-Dec-2021 Daniel Lezcano <daniel.lezcano@linaro.org>

Merge branch 'reset/of-get-optional-exclusive' of git://git.pengutronix.de/pza/linux into timers/drivers/next

"Add optional variant of of_reset_control_get_exclusive(). If the
requested reset is not

Merge branch 'reset/of-get-optional-exclusive' of git://git.pengutronix.de/pza/linux into timers/drivers/next

"Add optional variant of of_reset_control_get_exclusive(). If the
requested reset is not specified in the device tree, this function
returns NULL instead of an error."

This dependency is needed for the Generic Timer Module (a.k.a OSTM)
support for RZ/G2L.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

show more ...


# 5d8dfaa7 09-Dec-2021 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v5.15' into next

Sync up with the mainline to get the latest APIs and DT bindings.


Revision tags: v5.15.7, v5.15.6, v5.15.5, v5.15.4, v5.15.3, v5.15.2, v5.15.1, v5.15, v5.14.14, v5.14.13, v5.14.12, v5.14.11, v5.14.10
# e700ac21 05-Oct-2021 Tony Lindgren <tony@atomide.com>

Merge branch 'pruss-fix' into fixes

Merge in a fix for pruss reset issue caused by enabling pruss for am335x.


Revision tags: v5.14.9, v5.14.8, v5.14.7
# ffb1e76f 20-Sep-2021 Mark Brown <broonie@kernel.org>

Merge tag 'v5.15-rc2' into spi-5.15

Linux 5.15-rc2


Revision tags: v5.14.6, v5.10.67, v5.10.66, v5.14.5
# d1b803f4 15-Sep-2021 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-next

Catch-up on 5.15-rc1 and sync with drm-intel-gt-next
to prepare the PXP topic branch.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>


# d5dd580d 15-Sep-2021 Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Merge drm/drm-next into drm-intel-gt-next

Close the divergence which has caused patches not to apply and
have a solid baseline for the PXP patches that Rodrigo will send
a topic branch PR for.

Sign

Merge drm/drm-next into drm-intel-gt-next

Close the divergence which has caused patches not to apply and
have a solid baseline for the PXP patches that Rodrigo will send
a topic branch PR for.

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

show more ...


Revision tags: v5.14.4, v5.10.65
# 2f765205 14-Sep-2021 Maxime Ripard <maxime@cerno.tech>

Merge drm/drm-next into drm-misc-next

Kickstart new drm-misc-next cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>


Revision tags: v5.14.3, v5.10.64
# c2f4954c 10-Sep-2021 Thomas Gleixner <tglx@linutronix.de>

Merge branch 'linus' into smp/urgent

Ensure that all usage sites of get/put_online_cpus() except for the
struggler in drivers/thermal are gone. So the last user and the deprecated
inlines can be rem

Merge branch 'linus' into smp/urgent

Ensure that all usage sites of get/put_online_cpus() except for the
struggler in drivers/thermal are gone. So the last user and the deprecated
inlines can be removed.

show more ...


Revision tags: v5.14.2, v5.10.63, v5.14.1, v5.10.62
# 6f1e8b12 31-Aug-2021 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'acpi-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA kernel code to upstream revision 20210730,

Merge tag 'acpi-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA kernel code to upstream revision 20210730,
clean up the ACPI companion binding code, optimize the I2C handling in
the XPower PMIC driver, add 16550-compatible Serial Port Subtype
support to the SPCR parsing code, add a few LoongArch support bits,
add a ne quirk to the button driver, add new PCH FIVR methods to the
DPTF code, replace deprecated CPU-hotplug functions in the processor
driver, improve the acpi_os_map_memory() handling on non-x86 and do
some assorted cleanups.

Specifics:

- Update ACPICA code in the kernel to upstream revision 20210730
including the following changes:
- Add support for the AEST table (data compiler) to iASL (Bob
Moore)
- Fix an if statement (add parens) (Bob Moore)
- Drop trailing semicolon from some macros (Bob Moore)
- Fix compilation of WPBT table with no command-line arguments in
iASL (Bob Moore)
- Add method name "_DIS" for use with aslmethod.c (Bob Moore)
- Add new DBG2 Serial Port Subtypes (Marcin Wojtas)

- Add new PCH FIVR methods to the DPTF code (Srinivas Pandruvada)

- Add support for the new 16550-compatible Serial Port Subtype to the
SPCR table parsing code (Marcin Wojtas)

- Add DMI quirk for Lenovo Yoga 9 (14INTL5) to the ACPI button driver
(Ulrich Huber)

- Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMA (Huacai Chen)

- Add memory semantics to acpi_os_map_memory() (Lorenzo Pieralisi)

- Replace deprecated CPU-hotplug functions in the ACPI processor
driver (Sebastian Andrzej Siewior)

- Optimize I2C-bus handling in the XPower PMIC driver (Hans de Goede)

- Make platform-profile catch profile changes initiated by user space
and notify user processes of them (Hans de Goede)

- Clean up the ACPI companion binding and unbinding code and update
debug messaging in the ACPI power resources code (Rafael Wysocki)

- Clean up a couple of code pieces related to configfs (Andy
Shevchenko)

- Rearrange the FPDT table parsing code to avoid printing warning
messages for reserved record types (Adrian Huang)"

* tag 'acpi-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (27 commits)
ACPI: power: Drop name from struct acpi_power_resource
ACPI: power: Use acpi_handle_debug() to print debug messages
ACPI: tables: FPDT: Do not print FW_BUG message if record types are reserved
ACPI: button: Add DMI quirk for Lenovo Yoga 9 (14INTL5)
ACPI: Add memory semantics to acpi_os_map_memory()
ACPI: SPCR: Add support for the new 16550-compatible Serial Port Subtype
ACPI: platform-profile: call sysfs_notify() from platform_profile_store()
ACPICA: Update version to 20210730
ACPICA: Add method name "_DIS" For use with aslmethod.c
ACPICA: iASL: Fix for WPBT table with no command-line arguments
ACPICA: Headers: Add new DBG2 Serial Port Subtypes
ACPICA: Macros should not use a trailing semicolon
ACPICA: Fix an if statement (add parens)
ACPICA: iASL: Add support for the AEST table (data compiler)
ACPI: processor: Replace deprecated CPU-hotplug functions
ACPI: DPTF: Add new PCH FIVR methods
ACPI: configfs: Make get_header() to return error pointer
ACPI: configfs: Use sysfs_emit() in "show" functions
driver core: Split device_platform_notify()
software nodes: Split software_node_notify()
...

show more ...


# 7c851546 30-Aug-2021 Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Merge branches 'acpi-numa', 'acpi-glue', 'acpi-config' and 'acpi-pmic'

* acpi-numa:
ACPI: Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMA

* acpi-glue:
driver core: Split device_platform_noti

Merge branches 'acpi-numa', 'acpi-glue', 'acpi-config' and 'acpi-pmic'

* acpi-numa:
ACPI: Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMA

* acpi-glue:
driver core: Split device_platform_notify()
software nodes: Split software_node_notify()
ACPI: glue: Eliminate acpi_platform_notify()
ACPI: bus: Rename functions to avoid name collision
ACPI: glue: Change return type of two functions to void
ACPI: glue: Rearrange acpi_device_notify()

* acpi-config:
ACPI: configfs: Make get_header() to return error pointer
ACPI: configfs: Use sysfs_emit() in "show" functions

* acpi-pmic:
ACPI / PMIC: XPower: optimize MIPI PMIQ sequence I2C-bus accesses
ACPI / PMIC: XPower: optimize I2C-bus accesses

show more ...


Revision tags: v5.14, v5.10.61, v5.10.60, v5.10.53, v5.10.52, v5.10.51, v5.10.50, v5.10.49
# b1121e2a 05-Jul-2021 Huacai Chen <chenhuacai@loongson.cn>

ACPI: Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMA

We are preparing to add new Loongson (based on LoongArch, not MIPS)
support. LoongArch use ACPI other than DT as its boot protocol, so
add it

ACPI: Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMA

We are preparing to add new Loongson (based on LoongArch, not MIPS)
support. LoongArch use ACPI other than DT as its boot protocol, so
add its support for ACPI_PROCESSOR/ACPI_NUMA.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

show more ...


Revision tags: v5.13, v5.10.46, v5.10.43, v5.10.42, v5.10.41, v5.10.40, v5.10.39, v5.4.119, v5.10.36, v5.10.35, v5.10.34, v5.4.116, v5.10.33, v5.12, v5.10.32, v5.10.31, v5.10.30, v5.10.27, v5.10.26, v5.10.25, v5.10.24, v5.10.23, v5.10.22, v5.10.21, v5.10.20, v5.10.19, v5.4.101, v5.10.18, v5.10.17, v5.11, v5.10.16, v5.10.15, v5.10.14, v5.10, v5.8.17, v5.8.16, v5.8.15, v5.9, v5.8.14, v5.8.13, v5.8.12, v5.8.11, v5.8.10, v5.8.9, v5.8.8, v5.8.7, v5.8.6, v5.4.62, v5.8.5, v5.8.4, v5.4.61, v5.8.3, v5.4.60, v5.8.2, v5.4.59, v5.8.1, v5.4.58, v5.4.57, v5.4.56, v5.8, v5.7.12, v5.4.55, v5.7.11, v5.4.54, v5.7.10, v5.4.53, v5.4.52, v5.7.9, v5.7.8, v5.4.51, v5.4.50, v5.7.7, v5.4.49, v5.7.6, v5.7.5, v5.4.48, v5.7.4, v5.7.3, v5.4.47, v5.4.46, v5.7.2, v5.4.45, v5.7.1, v5.4.44, v5.7, v5.4.43, v5.4.42, v5.4.41, v5.4.40, v5.4.39, v5.4.38, v5.4.37, v5.4.36, v5.4.35, v5.4.34, v5.4.33, v5.4.32, v5.4.31, v5.4.30, v5.4.29, v5.6, v5.4.28, v5.4.27, v5.4.26, v5.4.25, v5.4.24, v5.4.23, v5.4.22
# c95baf12 20-Feb-2020 Zhenyu Wang <zhenyuw@linux.intel.com>

Merge drm-intel-next-queued into gvt-next

Backmerge to pull in
https://patchwork.freedesktop.org/patch/353621/?series=73544&rev=1

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>


Revision tags: v5.4.21, v5.4.20, v5.4.19, v5.4.18, v5.4.17, v5.4.16, v5.5, v5.4.15, v5.4.14, v5.4.13, v5.4.12, v5.4.11, v5.4.10, v5.4.9, v5.4.8, v5.4.7
# 28336be5 30-Dec-2019 Ingo Molnar <mingo@kernel.org>

Merge tag 'v5.5-rc4' into locking/kcsan, to resolve conflicts

Conflicts:
init/main.c
lib/Kconfig.debug

Signed-off-by: Ingo Molnar <mingo@kernel.org>


# b19efcab 31-Jan-2020 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 5.6 merge window.


# 1bdd3e05 10-Jan-2020 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v5.5-rc5' into next

Sync up with mainline to get SPI "delay" API changes.


# 22164fbe 06-Jan-2020 Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Merge drm/drm-next into drm-misc-next

Requested, and we need v5.5-rc1 backported as our current branch is still based on v5.4.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>


Revision tags: v5.4.6, v5.4.5, v5.4.4, v5.4.3
# 023265ed 11-Dec-2019 Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-intel-next-queued

Sync up with v5.5-rc1 to get the updated lock_release() API among other
things. Fix the conflict reported by Stephen Rothwell [1].

[1] http://lore.kern

Merge drm/drm-next into drm-intel-next-queued

Sync up with v5.5-rc1 to get the updated lock_release() API among other
things. Fix the conflict reported by Stephen Rothwell [1].

[1] http://lore.kernel.org/r/20191210093957.5120f717@canb.auug.org.au

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

show more ...


# 2040cf9f 10-Dec-2019 Ingo Molnar <mingo@kernel.org>

Merge tag 'v5.5-rc1' into core/kprobes, to resolve conflicts

Signed-off-by: Ingo Molnar <mingo@kernel.org>


# 4f797f56 08-Dec-2019 Ingo Molnar <mingo@kernel.org>

Merge branch 'linus' into sched/urgent, to pick up the latest before merging new patches

Signed-off-by: Ingo Molnar <mingo@kernel.org>


# 942e6f8a 05-Dec-2019 Olof Johansson <olof@lixom.net>

Merge mainline/master into arm/fixes

This brings in the mainline tree right after armsoc contents was merged
this release cycle, so that we can re-run savedefconfig, etc.

Signed-off-by: Olof Johans

Merge mainline/master into arm/fixes

This brings in the mainline tree right after armsoc contents was merged
this release cycle, so that we can re-run savedefconfig, etc.

Signed-off-by: Olof Johansson <olof@lixom.net>

show more ...


Revision tags: v5.3.15, v5.4.2, v5.4.1, v5.3.14
# 6e9f8796 26-Nov-2019 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'acpi-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream revision
2

Merge tag 'acpi-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream revision
20191018, add support for EFI specific purpose memory, update the ACPI
EC driver to make it work on systems with hardware-reduced ACPI,
improve ACPI-based device enumeration for some platforms, rework the
lid blacklist handling in the button driver and add more lid quirks to
it, unify ACPI _HID/_UID matching, fix assorted issues and clean up
the code and documentation.

Specifics:

- Update the ACPICA code in the kernel to upstream revision 20191018
including:
* Fixes for Clang warnings (Bob Moore)
* Fix for possible overflow in get_tick_count() (Bob Moore)
* Introduction of acpi_unload_table() (Bob Moore)
* Debugger and utilities updates (Erik Schmauss)
* Fix for unloading tables loaded via configfs (Nikolaus Voss)

- Add support for EFI specific purpose memory to optionally allow
either application-exclusive or core-kernel-mm managed access to
differentiated memory (Dan Williams)

- Fix and clean up processing of the HMAT table (Brice Goglin, Qian
Cai, Tao Xu)

- Update the ACPI EC driver to make it work on systems with
hardware-reduced ACPI (Daniel Drake)

- Always build in support for the Generic Event Device (GED) to allow
one kernel binary to work both on systems with full hardware ACPI
and hardware-reduced ACPI (Arjan van de Ven)

- Fix the table unload mechanism to unregister platform devices
created when the given table was loaded (Andy Shevchenko)

- Rework the lid blacklist handling in the button driver and add more
lid quirks to it (Hans de Goede)

- Improve ACPI-based device enumeration for some platforms based on
Intel BayTrail SoCs (Hans de Goede)

- Add an OpRegion driver for the Cherry Trail Crystal Cove PMIC and
prevent handlers from being registered for unhandled PMIC OpRegions
(Hans de Goede)

- Unify ACPI _HID/_UID matching (Andy Shevchenko)

- Clean up documentation and comments (Cao jin, James Pack, Kacper
Piwiński)"

* tag 'acpi-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits)
ACPI: OSI: Shoot duplicate word
ACPI: HMAT: use %u instead of %d to print u32 values
ACPI: NUMA: HMAT: fix a section mismatch
ACPI: HMAT: don't mix pxm and nid when setting memory target processor_pxm
ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device
ACPI: NUMA: HMAT: Register HMAT at device_initcall level
device-dax: Add a driver for "hmem" devices
dax: Fix alloc_dax_region() compile warning
lib: Uplevel the pmem "region" ida to a global allocator
x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP
arm/efi: EFI soft reservation to memblock
x86/efi: EFI soft reservation to E820 enumeration
efi: Common enable/disable infrastructure for EFI soft reservation
x86/efi: Push EFI_MEMMAP check into leaf routines
efi: Enumerate EFI_MEMORY_SP
ACPI: NUMA: Establish a new drivers/acpi/numa/ directory
ACPICA: Update version to 20191018
ACPICA: debugger: remove leading whitespaces when converting a string to a buffer
ACPICA: acpiexec: initialize all simple types and field units from user input
ACPICA: debugger: add field unit support for acpi_db_get_next_token
...

show more ...


# 782b5971 26-Nov-2019 Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Merge branch 'acpi-mm'

* acpi-mm:
ACPI: HMAT: use %u instead of %d to print u32 values
ACPI: NUMA: HMAT: fix a section mismatch
ACPI: HMAT: don't mix pxm and nid when setting memory target pro

Merge branch 'acpi-mm'

* acpi-mm:
ACPI: HMAT: use %u instead of %d to print u32 values
ACPI: NUMA: HMAT: fix a section mismatch
ACPI: HMAT: don't mix pxm and nid when setting memory target processor_pxm
ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device
ACPI: NUMA: HMAT: Register HMAT at device_initcall level
device-dax: Add a driver for "hmem" devices
dax: Fix alloc_dax_region() compile warning
lib: Uplevel the pmem "region" ida to a global allocator
x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP
arm/efi: EFI soft reservation to memblock
x86/efi: EFI soft reservation to E820 enumeration
efi: Common enable/disable infrastructure for EFI soft reservation
x86/efi: Push EFI_MEMMAP check into leaf routines
efi: Enumerate EFI_MEMORY_SP
ACPI: NUMA: Establish a new drivers/acpi/numa/ directory

show more ...


Revision tags: v5.4, v5.3.13, v5.3.12, v5.3.11, v5.3.10
# cf8741ac 06-Nov-2019 Dan Williams <dan.j.williams@intel.com>

ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device

Memory that has been tagged EFI_MEMORY_SP, and has performance
properties described by the ACPI HMAT is expected to have an appl

ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device

Memory that has been tagged EFI_MEMORY_SP, and has performance
properties described by the ACPI HMAT is expected to have an application
specific consumer.

Those consumers may want 100% of the memory capacity to be reserved from
any usage by the kernel. By default, with this enabling, a platform
device is created to represent this differentiated resource.

The device-dax "hmem" driver claims these devices by default and
provides an mmap interface for the target application. If the
administrator prefers, the hmem resource range can be made available to
the core-mm via the device-dax hotplug facility, kmem, to online the
memory with its own numa node.

This was tested with an emulated HMAT produced by qemu (with the pending
HMAT enabling patches), and "efi_fake_mem=8G@9G:0x40000" on the kernel
command line to mark the memory ranges associated with node2 and node3
as EFI_MEMORY_SP.

qemu numa configuration options:

-numa node,mem=4G,cpus=0-19,nodeid=0
-numa node,mem=4G,cpus=20-39,nodeid=1
-numa node,mem=4G,nodeid=2
-numa node,mem=4G,nodeid=3
-numa dist,src=0,dst=0,val=10
-numa dist,src=0,dst=1,val=21
-numa dist,src=0,dst=2,val=21
-numa dist,src=0,dst=3,val=21
-numa dist,src=1,dst=0,val=21
-numa dist,src=1,dst=1,val=10
-numa dist,src=1,dst=2,val=21
-numa dist,src=1,dst=3,val=21
-numa dist,src=2,dst=0,val=21
-numa dist,src=2,dst=1,val=21
-numa dist,src=2,dst=2,val=10
-numa dist,src=2,dst=3,val=21
-numa dist,src=3,dst=0,val=21
-numa dist,src=3,dst=1,val=21
-numa dist,src=3,dst=2,val=21
-numa dist,src=3,dst=3,val=10
-numa hmat-lb,initiator=0,target=0,hierarchy=memory,data-type=access-latency,base-lat=10,latency=5
-numa hmat-lb,initiator=0,target=0,hierarchy=memory,data-type=access-bandwidth,base-bw=20,bandwidth=5
-numa hmat-lb,initiator=0,target=1,hierarchy=memory,data-type=access-latency,base-lat=10,latency=10
-numa hmat-lb,initiator=0,target=1,hierarchy=memory,data-type=access-bandwidth,base-bw=20,bandwidth=10
-numa hmat-lb,initiator=0,target=2,hierarchy=memory,data-type=access-latency,base-lat=10,latency=15
-numa hmat-lb,initiator=0,target=2,hierarchy=memory,data-type=access-bandwidth,base-bw=20,bandwidth=15
-numa hmat-lb,initiator=0,target=3,hierarchy=memory,data-type=access-latency,base-lat=10,latency=20
-numa hmat-lb,initiator=0,target=3,hierarchy=memory,data-type=access-bandwidth,base-bw=20,bandwidth=20
-numa hmat-lb,initiator=1,target=0,hierarchy=memory,data-type=access-latency,base-lat=10,latency=10
-numa hmat-lb,initiator=1,target=0,hierarchy=memory,data-type=access-bandwidth,base-bw=20,bandwidth=10
-numa hmat-lb,initiator=1,target=1,hierarchy=memory,data-type=access-latency,base-lat=10,latency=5
-numa hmat-lb,initiator=1,target=1,hierarchy=memory,data-type=access-bandwidth,base-bw=20,bandwidth=5
-numa hmat-lb,initiator=1,target=2,hierarchy=memory,data-type=access-latency,base-lat=10,latency=15
-numa hmat-lb,initiator=1,target=2,hierarchy=memory,data-type=access-bandwidth,base-bw=20,bandwidth=15
-numa hmat-lb,initiator=1,target=3,hierarchy=memory,data-type=access-latency,base-lat=10,latency=20
-numa hmat-lb,initiator=1,target=3,hierarchy=memory,data-type=access-bandwidth,base-bw=20,bandwidth=20

Result:

[
{
"path":"\/platform\/hmem.1",
"id":1,
"size":"4.00 GiB (4.29 GB)",
"align":2097152,
"devices":[
{
"chardev":"dax1.0",
"size":"4.00 GiB (4.29 GB)"
}
]
},
{
"path":"\/platform\/hmem.0",
"id":0,
"size":"4.00 GiB (4.29 GB)",
"align":2097152,
"devices":[
{
"chardev":"dax0.0",
"size":"4.00 GiB (4.29 GB)"
}
]
}
]

[..]
240000000-43fffffff : Soft Reserved
240000000-33fffffff : hmem.0
240000000-33fffffff : dax0.0
340000000-43fffffff : hmem.1
340000000-43fffffff : dax1.0

Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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# c710fcc5 06-Nov-2019 Dan Williams <dan.j.williams@intel.com>

ACPI: NUMA: Establish a new drivers/acpi/numa/ directory

Currently hmat.c lives under an "hmat" directory which does not enhance
the description of the file. The initial motivation for giving hmat.c

ACPI: NUMA: Establish a new drivers/acpi/numa/ directory

Currently hmat.c lives under an "hmat" directory which does not enhance
the description of the file. The initial motivation for giving hmat.c
its own directory was to delineate it as mm functionality in contrast to
ACPI device driver functionality.

As ACPI continues to play an increasing role in conveying
memory location and performance topology information to the OS take the
opportunity to co-locate these NUMA relevant tables in a combined
directory.

numa.c is renamed to srat.c and moved to drivers/acpi/numa/ along with
hmat.c.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

show more ...