The acpi_dev_get_first_match_name() is missing put_device() call
and thus keeping reference counting unbalanced.
In order to fix the issue introduce a new helper to convert existing users
one-by-one to a better API.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Rather than setting debug output flags during early init, its makes
more sense to simply re-define ACPI_DEBUG_DEFAULT specifically for
Linux.
ACPICA commit 60903715711f4b00ca1831779a8a23279a66497d
Link: https://github.com/acpica/acpica/commit/60903715
Fixes: ce5cbf5349 ("ACPI: Set debug output flags independent of ACPICA")
Reported-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- Update the ACPICA code in the kernel to upstream revision 20190215
including ACPI 6.3 support and more:
* New predefined methods: _NBS, _NCH, _NIC, _NIH, and _NIG (Erik
Schmauss).
* Update of the PCC Identifier structure in PDTT (Erik Schmauss).
* Support for new Generic Affinity Structure subtable in SRAT
(Erik Schmauss).
* New PCC operation region support (Erik Schmauss).
* Support for GICC statistical profiling for MADT (Erik Schmauss).
* New Error Disconnect Recover notification support (Erik Schmauss).
* New PPTT Processor Structure Flags fields support (Erik Schmauss).
* ACPI 6.3 HMAT updates (Erik Schmauss).
* GTDT Revision 3 support (Erik Schmauss).
* Legacy module-level code (MLC) support removal (Erik Schmauss).
* Update/clarification of messages for control method failures
(Bob Moore).
* Warning on creation of a zero-length opregion (Bob Moore).
* acpiexec option to dump extra info for memory leaks (Bob Moore).
* More ACPI error to firmware error conversions (Bob Moore).
* Debugger fix (Bob Moore).
* Copyrights update (Bob Moore).
- Clean up sleep states support code in ACPICA (Christoph Hellwig).
- Rework in_nmi() handling in the APEI code and add suppor for the
ARM Software Delegated Exception Interface (SDEI) to it (James
Morse).
- Fix possible out-of-bounds accesses in BERT-related core (Ross
Lagerwall).
- Fix the APEI code parsing HEST that includes a Deferred Machine
Check subtable (Yazen Ghannam).
- Use DEFINE_DEBUGFS_ATTRIBUTE for APEI-related debugfs files
(YueHaibing).
- Switch the APEI ERST code to the new generic UUID API (Andy
Shevchenko).
- Update the MAINTAINERS entry for APEI (Borislav Petkov).
- Fix and clean up the ACPI EC driver (Rafael Wysocki, Zhang Rui).
- Fix DMI checks handling in the ACPI backlight driver and add the
"Lunch Box" chassis-type check to it (Hans de Goede).
- Add support for using ACPI table overrides included in built-in
initrd images (Shunyong Yang).
- Update ACPI device enumeration to treat the PWM2 device as "always
present" on Lenovo Yoga Book (Yauhen Kharuzhy).
- Fix up the enumeration of device objects with the PRP0001 device
ID (Andy Shevchenko).
- Clean up PPTT parsing error messages (John Garry).
- Clean up debugfs files creation handling (Greg Kroah-Hartman,
Rafael Wysocki).
- Clean up the ACPI DPTF Makefile (Masahiro Yamada).
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Merge tag 'acpi-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These are ACPICA updates including ACPI 6.3 support among other
things, APEI updates including the ARM Software Delegated Exception
Interface (SDEI) support, ACPI EC driver fixes and cleanups and other
assorted improvements.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20190215
including ACPI 6.3 support and more:
* New predefined methods: _NBS, _NCH, _NIC, _NIH, and _NIG (Erik
Schmauss).
* Update of the PCC Identifier structure in PDTT (Erik Schmauss).
* Support for new Generic Affinity Structure subtable in SRAT
(Erik Schmauss).
* New PCC operation region support (Erik Schmauss).
* Support for GICC statistical profiling for MADT (Erik Schmauss).
* New Error Disconnect Recover notification support (Erik
Schmauss).
* New PPTT Processor Structure Flags fields support (Erik
Schmauss).
* ACPI 6.3 HMAT updates (Erik Schmauss).
* GTDT Revision 3 support (Erik Schmauss).
* Legacy module-level code (MLC) support removal (Erik Schmauss).
* Update/clarification of messages for control method failures
(Bob Moore).
* Warning on creation of a zero-length opregion (Bob Moore).
* acpiexec option to dump extra info for memory leaks (Bob Moore).
* More ACPI error to firmware error conversions (Bob Moore).
* Debugger fix (Bob Moore).
* Copyrights update (Bob Moore)
- Clean up sleep states support code in ACPICA (Christoph Hellwig)
- Rework in_nmi() handling in the APEI code and add suppor for the
ARM Software Delegated Exception Interface (SDEI) to it (James
Morse)
- Fix possible out-of-bounds accesses in BERT-related core (Ross
Lagerwall)
- Fix the APEI code parsing HEST that includes a Deferred Machine
Check subtable (Yazen Ghannam)
- Use DEFINE_DEBUGFS_ATTRIBUTE for APEI-related debugfs files
(YueHaibing)
- Switch the APEI ERST code to the new generic UUID API (Andy
Shevchenko)
- Update the MAINTAINERS entry for APEI (Borislav Petkov)
- Fix and clean up the ACPI EC driver (Rafael Wysocki, Zhang Rui)
- Fix DMI checks handling in the ACPI backlight driver and add the
"Lunch Box" chassis-type check to it (Hans de Goede)
- Add support for using ACPI table overrides included in built-in
initrd images (Shunyong Yang)
- Update ACPI device enumeration to treat the PWM2 device as "always
present" on Lenovo Yoga Book (Yauhen Kharuzhy)
- Fix up the enumeration of device objects with the PRP0001 device ID
(Andy Shevchenko)
- Clean up PPTT parsing error messages (John Garry)
- Clean up debugfs files creation handling (Greg Kroah-Hartman,
Rafael Wysocki)
- Clean up the ACPI DPTF Makefile (Masahiro Yamada)"
* tag 'acpi-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits)
ACPI / bus: Respect PRP0001 when retrieving device match data
ACPICA: Update version to 20190215
ACPI/ACPICA: Trivial: fix spelling mistakes and fix whitespace formatting
ACPICA: ACPI 6.3: add GTDT Revision 3 support
ACPICA: ACPI 6.3: HMAT updates
ACPICA: ACPI 6.3: PPTT add additional fields in Processor Structure Flags
ACPICA: ACPI 6.3: add Error Disconnect Recover Notification value
ACPICA: ACPI 6.3: MADT: add support for statistical profiling in GICC
ACPICA: ACPI 6.3: add PCC operation region support for AML interpreter
efi: cper: Fix possible out-of-bounds access
ACPI: APEI: Fix possible out-of-bounds access to BERT region
ACPICA: ACPI 6.3: SRAT: add Generic Affinity Structure subtable
ACPICA: ACPI 6.3: Add Trigger order to PCC Identifier structure in PDTT
ACPICA: ACPI 6.3: Adding predefined methods _NBS, _NCH, _NIC, _NIH, and _NIG
ACPICA: Update/clarify messages for control method failures
ACPICA: Debugger: Fix possible fault with the "test objects" command
ACPICA: Interpreter: Emit warning for creation of a zero-length op region
ACPICA: Remove legacy module-level code support
ACPI / x86: Make PWM2 device always present at Lenovo Yoga Book
ACPI / video: Extend chassis-type detection with a "Lunch Box" check
..
* acpi-apei: (29 commits)
efi: cper: Fix possible out-of-bounds access
ACPI: APEI: Fix possible out-of-bounds access to BERT region
MAINTAINERS: Add James Morse to the list of APEI reviewers
ACPI / APEI: Add support for the SDEI GHES Notification type
firmware: arm_sdei: Add ACPI GHES registration helper
ACPI / APEI: Use separate fixmap pages for arm64 NMI-like notifications
ACPI / APEI: Only use queued estatus entry during in_nmi_queue_one_entry()
ACPI / APEI: Split ghes_read_estatus() to allow a peek at the CPER length
ACPI / APEI: Make GHES estatus header validation more user friendly
ACPI / APEI: Pass ghes and estatus separately to avoid a later copy
ACPI / APEI: Let the notification helper specify the fixmap slot
ACPI / APEI: Move locking to the notification helper
arm64: KVM/mm: Move SEA handling behind a single 'claim' interface
KVM: arm/arm64: Add kvm_ras.h to collect kvm specific RAS plumbing
ACPI / APEI: Switch NOTIFY_SEA to use the estatus queue
ACPI / APEI: Move NOTIFY_SEA between the estatus-queue and NOTIFY_NMI
ACPI / APEI: Don't allow ghes_ack_error() to mask earlier errors
ACPI / APEI: Generalise the estatus queue's notify code
ACPI / APEI: Don't update struct ghes' flags in read/clear estatus
ACPI / APEI: Remove spurious GHES_TO_CLEAR check
...
ACPICA commit e66a8468f83fadb35aebeb534d8ef92622274696
Version 20190215
Link: https://github.com/acpica/acpica/commit/e66a8468
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 2cd926fdf360062adcaac1349cb94136590c1c74
Link: https://github.com/acpica/acpica/commit/2cd926fd
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit a216e8ca9f7c79f90788b193e2e61151b2c973c0
This change reserves several field and renames subtable 0 to
"memory proximity domain attributes"
Link: https://github.com/acpica/acpica/commit/a216e8ca
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit c736ea34add19a3a07e0e398711847cd6b95affd
Link: https://github.com/acpica/acpica/commit/c736ea34
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 205ac8fc721073f1e609df963b14ef2237aeba73
Link: https://github.com/acpica/acpica/commit/205ac8fc
Reviewed-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 31b184052a986dc8d80c878edeca574d4ffa1cf5
Link: https://github.com/acpica/acpica/commit/31b18405
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This patch add a helper to get the value of desired performance
register.
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
[ rjw: More white space ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 8c9eba7811a939a387d93d6c2a572d0887e64f2c
Link: https://github.com/acpica/acpica/commit/8c9eba78
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit b11446d8b47805c2637a2286aca34b717ec6b5be
Link: https://github.com/acpica/acpica/commit/b11446d8
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 47f5607c204719d9239a12b889df725225098c8f
Module-level code refers to executable ASL code that runs during
table load. This is typically used in ASL to declare named objects
based on a condition evaluated during table load like so:
definition_block(...)
{
opreation_region (OPR1, system_memory, ...)
Field (OPR1)
{
FLD1, 8 /* Assume that FLD1's value is 0x1 */
}
/* The if statement below is referred to as module-level code */
If (FLD1)
{
/* Declare DEV1 conditionally */
Device (DEV1) {...}
}
Device (DEV2)
{
...
}
}
In legacy module-level code, the execution of the If statement
was deferred after other modules were loaded. The order of
code execution for the table above is the following:
1.) Load OPR1 to the ACPI Namespace
2.) Load FLD1 to the ACPI Namespace (not intended for drivers)
3.) Load DEV2 to the ACPI Namespace
4.) Execute If (FLD1) and load DEV1 if the condition is true
This legacy approach can be problematic for tables that look like the
following:
definition_block(...)
{
opreation_region (OPR1, system_memory, ...)
Field (OPR1)
{
FLD1, 8 /* Assume that FLD1's value is 0x1 */
}
/* The if statement below is referred to as module-level code */
If (FLD1)
{
/* Declare DEV1 conditionally */
Device (DEV1) {...}
}
Scope (DEV1)
{
/* Add objects DEV1's scope */
Name (OBJ1, 0x1234)
}
}
When loading this in the legacy approach, Scope DEV1 gets evaluated
before the If statement. The following is the order of execution:
1.) Load OPR1 to the ACPI Namespace
2.) Load FLD1 to the ACPI Namespace (not intended for drivers)
3.) Add OBJ1 under DEV1's scope -- ERROR. DEV1 does not exist
4.) Execute If (FLD1) and load DEV1 if the condition is true
The legacy approach can never succeed for tables like this due to the
deferral of the module-level code. Due to this limitation, a new
module-level code was developed. This new approach exeutes if
statements in the order that they appear in the definition block.
With this approach, the order of execution for the above defintion
block is as follows:
1.) Load OPR1 to the ACPI Namespace
2.) Load FLD1 to the ACPI Namespace (not intended for drivers)
3.) Execute If (FLD1) and load DEV1 because the condition is true
4.) Add OBJ1 under DEV1's scope.
Since DEV1 is loaded in the namespace in step 3, step 4 executes
successfully.
This change removes support for the legacy module-level code
execution. From this point onward, the new module-level code
execution will be the official approach.
Link: https://github.com/acpica/acpica/commit/47f5607c
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ghes_read_estatus() sets a flag in struct ghes if the buffer of
CPER records needs to be cleared once the records have been
processed. This flag value is a problem if a struct ghes can be
processed concurrently, as happens at probe time if an NMI arrives
for the same error source. The NMI clears the flag, meaning the
interrupted handler may never do the ghes_estatus_clear() work.
The GHES_TO_CLEAR flags is only set at the same time as
buffer_paddr, which is now owned by the caller and passed to
ghes_clear_estatus(). Use this value as the flag.
A non-zero buf_paddr returned by ghes_read_estatus() means
ghes_clear_estatus() should clear this address. ghes_read_estatus()
already checks for a read of error_status_address being zero,
so CPER records cannot be written here.
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
When CPER records are found the address of the records is stashed
in the struct ghes. Once the records have been processed, this
address is overwritten with zero so that it won't be processed
again without being re-populated by firmware.
This goes wrong if a struct ghes can be processed concurrently,
as can happen at probe time when an NMI occurs. If the NMI arrives
on another CPU, the probing CPU may call ghes_clear_estatus() on the
records before the handler had finished with them.
Even on the same CPU, once the interrupted handler is resumed, it
will call ghes_clear_estatus() on the NMIs records, this memory may
have already been re-used by firmware.
Avoid this stashing by letting the caller hold the address. A
later patch will do away with the use of ghes->flags in the
read/clear code too.
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Adding new NMI-like notifications duplicates the calls that grow
and shrink the estatus pool. This is all pretty pointless, as the
size is capped to 64K. Allocate this for each ghes and drop
the code that grows and shrinks the pool.
Suggested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ghes.c has a memory pool it uses for the estatus cache and the estatus
queue. The cache is initialised when registering the platform driver.
For the queue, an NMI-like notification has to grow/shrink the pool
as it is registered and unregistered.
This is all pretty noisy when adding new NMI-like notifications, it
would be better to replace this with a static pool size based on the
number of users.
As a precursor, move the call that creates the pool from ghes_init(),
into hest.c. Later this will take the number of ghes entries and
consolidate the queue allocations.
Remove ghes_estatus_pool_exit() as hest.c doesn't have anywhere to put
this.
The pool is now initialised as part of ACPI's subsys_initcall():
(acpi_init(), acpi_scan_init(), acpi_pci_root_init(), acpi_hest_init())
Before this patch it happened later as a GHES specific device_initcall().
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
No need for the array of structs of function pointers when we can just
call the handfull of functions directly.
This could be further cleaned up if acpi_gbl_reduced_hardware was defined
true in the ACPI_REDUCED_HARDWARE case, but that's material for the next
round.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit aace846bb8f9b5877e100017f37fefc09dd2fde6
Version 20190108
Link: https://github.com/acpica/acpica/commit/aace846b
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 62f4f98e941d86e41969bf2ab5a93b8dc94dc49e
The update includes userspace tool signons.
Link: https://github.com/acpica/acpica/commit/62f4f98e
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit f3198c12f2df9d170b3da891a180b774cfe01e59
Also adds a new firmware error function, acpi_bios_exception.
Link: https://github.com/acpica/acpica/commit/f3198c12
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* acpi-pci:
ACPI: Make PCI slot detection driver depend on PCI
ACPI/IORT: Stub out ACS functions when CONFIG_PCI is not set
arm64: select ACPI PCI code only when both features are enabled
PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set
ACPICA: Remove PCI bits from ACPICA when CONFIG_PCI is unset
ACPI: Allow CONFIG_PCI to be unset for reboot
ACPI: Move PCI reset to a separate function
We are compiling PCI code today for systems with ACPI and no PCI
device present. Remove the useless code and reduce the tight
dependency.
Signed-off-by: Sinan Kaya <okaya@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # PCI parts
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Allow ACPI to be built without PCI support in place.
Signed-off-by: Sinan Kaya <okaya@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Version 20181213.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Adds entry/exit messages for all objects that are evaluated.
Works for the kernel-level code as well as acpiexec. The "-eo"
flag enables acpiexec to display these messages.
The messages are very useful when debugging the flow of table
initialization.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Jung-uk Kim <jkim@free_BSD.org>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Latest windows string.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
... with the goal of eventually enabling -Wmissing-prototypes by
default. At least on x86.
Make functions static where possible, otherwise add prototypes or make
them visible through includes.
asm/trace/ changes courtesy of Steven Rostedt <rostedt@goodmis.org>.
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> # ACPI + cpufreq bits
Cc: Andrew Banman <andrew.banman@hpe.com>
Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mike Travis <mike.travis@hpe.com>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yi Wang <wang.yi59@zte.com.cn>
Cc: linux-acpi@vger.kernel.org
Version 20181031.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Merge tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- Fix ASPM link_state teardown on removal (Lukas Wunner)
- Fix misleading _OSC ASPM message (Sinan Kaya)
- Make _OSC optional for PCI (Sinan Kaya)
- Don't initialize ASPM link state when ACPI_FADT_NO_ASPM is set
(Patrick Talbert)
- Remove x86 and arm64 node-local allocation for host bridge structures
(Punit Agrawal)
- Pay attention to device-specific _PXM node values (Jonathan Cameron)
- Support new Immediate Readiness bit (Felipe Balbi)
- Differentiate between pciehp surprise and safe removal (Lukas Wunner)
- Remove unnecessary pciehp includes (Lukas Wunner)
- Drop pciehp hotplug_slot_ops wrappers (Lukas Wunner)
- Tolerate PCIe Slot Presence Detect being hardwired to zero to
workaround broken hardware, e.g., the Wilocity switch/wireless device
(Lukas Wunner)
- Unify pciehp controller & slot structs (Lukas Wunner)
- Constify hotplug_slot_ops (Lukas Wunner)
- Drop hotplug_slot_info (Lukas Wunner)
- Embed hotplug_slot struct into users instead of allocating it
separately (Lukas Wunner)
- Initialize PCIe port service drivers directly instead of relying on
initcall ordering (Keith Busch)
- Restore PCI config state after a slot reset (Keith Busch)
- Save/restore DPC config state along with other PCI config state
(Keith Busch)
- Reference count devices during AER handling to avoid race issue with
concurrent hot removal (Keith Busch)
- If an Upstream Port reports ERR_FATAL, don't try to read the Port's
config space because it is probably unreachable (Keith Busch)
- During error handling, use slot-specific reset instead of secondary
bus reset to avoid link up/down issues on hotplug ports (Keith Busch)
- Restore previous AER/DPC handling that does not remove and
re-enumerate devices on ERR_FATAL (Keith Busch)
- Notify all drivers that may be affected by error recovery resets
(Keith Busch)
- Always generate error recovery uevents, even if a driver doesn't have
error callbacks (Keith Busch)
- Make PCIe link active reporting detection generic (Keith Busch)
- Support D3cold in PCIe hierarchies during system sleep and runtime,
including hotplug and Thunderbolt ports (Mika Westerberg)
- Handle hpmemsize/hpiosize kernel parameters uniformly, whether slots
are empty or occupied (Jon Derrick)
- Remove duplicated include from pci/pcie/err.c and unused variable
from cpqphp (YueHaibing)
- Remove driver pci_cleanup_aer_uncorrect_error_status() calls (Oza
Pawandeep)
- Uninline PCI bus accessors for better ftracing (Keith Busch)
- Remove unused AER Root Port .error_resume method (Keith Busch)
- Use kfifo in AER instead of a local version (Keith Busch)
- Use threaded IRQ in AER bottom half (Keith Busch)
- Use managed resources in AER core (Keith Busch)
- Reuse pcie_port_find_device() for AER injection (Keith Busch)
- Abstract AER interrupt handling to disconnect error injection (Keith
Busch)
- Refactor AER injection callbacks to simplify future improvments
(Keith Busch)
- Remove unused Netronome NFP32xx Device IDs (Jakub Kicinski)
- Use bitmap_zalloc() for dma_alias_mask (Andy Shevchenko)
- Add switch fall-through annotations (Gustavo A. R. Silva)
- Remove unused Switchtec quirk variable (Joshua Abraham)
- Fix pci.c kernel-doc warning (Randy Dunlap)
- Remove trivial PCI wrappers for DMA APIs (Christoph Hellwig)
- Add Intel GPU device IDs to spurious interrupt quirk (Bin Meng)
- Run Switchtec DMA aliasing quirk only on NTB endpoints to avoid
useless dmesg errors (Logan Gunthorpe)
- Update Switchtec NTB documentation (Wesley Yung)
- Remove redundant "default n" from Kconfig (Bartlomiej Zolnierkiewicz)
- Avoid panic when drivers enable MSI/MSI-X twice (Tonghao Zhang)
- Add PCI support for peer-to-peer DMA (Logan Gunthorpe)
- Add sysfs group for PCI peer-to-peer memory statistics (Logan
Gunthorpe)
- Add PCI peer-to-peer DMA scatterlist mapping interface (Logan
Gunthorpe)
- Add PCI configfs/sysfs helpers for use by peer-to-peer users (Logan
Gunthorpe)
- Add PCI peer-to-peer DMA driver writer's documentation (Logan
Gunthorpe)
- Add block layer flag to indicate driver support for PCI peer-to-peer
DMA (Logan Gunthorpe)
- Map Infiniband scatterlists for peer-to-peer DMA if they contain P2P
memory (Logan Gunthorpe)
- Register nvme-pci CMB buffer as PCI peer-to-peer memory (Logan
Gunthorpe)
- Add nvme-pci support for PCI peer-to-peer memory in requests (Logan
Gunthorpe)
- Use PCI peer-to-peer memory in nvme (Stephen Bates, Steve Wise,
Christoph Hellwig, Logan Gunthorpe)
- Cache VF config space size to optimize enumeration of many VFs
(KarimAllah Ahmed)
- Remove unnecessary <linux/pci-ats.h> include (Bjorn Helgaas)
- Fix VMD AERSID quirk Device ID matching (Jon Derrick)
- Fix Cadence PHY handling during probe (Alan Douglas)
- Signal Cadence Endpoint interrupts via AXI region 0 instead of last
region (Alan Douglas)
- Write Cadence Endpoint MSI interrupts with 32 bits of data (Alan
Douglas)
- Remove redundant controller tests for "device_type == pci" (Rob
Herring)
- Document R-Car E3 (R8A77990) bindings (Tho Vu)
- Add device tree support for R-Car r8a7744 (Biju Das)
- Drop unused mvebu PCIe capability code (Thomas Petazzoni)
- Add shared PCI bridge emulation code (Thomas Petazzoni)
- Convert mvebu to use shared PCI bridge emulation (Thomas Petazzoni)
- Add aardvark Root Port emulation (Thomas Petazzoni)
- Support 100MHz/200MHz refclocks for i.MX6 (Lucas Stach)
- Add initial power management for i.MX7 (Leonard Crestez)
- Add PME_Turn_Off support for i.MX7 (Leonard Crestez)
- Fix qcom runtime power management error handling (Bjorn Andersson)
- Update TI dra7xx unaligned access errata workaround for host mode as
well as endpoint mode (Vignesh R)
- Fix kirin section mismatch warning (Nathan Chancellor)
- Remove iproc PAXC slot check to allow VF support (Jitendra Bhivare)
- Quirk Keystone K2G to limit MRRS to 256 (Kishon Vijay Abraham I)
- Update Keystone to use MRRS quirk for host bridge instead of open
coding (Kishon Vijay Abraham I)
- Refactor Keystone link establishment (Kishon Vijay Abraham I)
- Simplify and speed up Keystone link training (Kishon Vijay Abraham I)
- Remove unused Keystone host_init argument (Kishon Vijay Abraham I)
- Merge Keystone driver files into one (Kishon Vijay Abraham I)
- Remove redundant Keystone platform_set_drvdata() (Kishon Vijay
Abraham I)
- Rename Keystone functions for uniformity (Kishon Vijay Abraham I)
- Add Keystone device control module DT binding (Kishon Vijay Abraham
I)
- Use SYSCON API to get Keystone control module device IDs (Kishon
Vijay Abraham I)
- Clean up Keystone PHY handling (Kishon Vijay Abraham I)
- Use runtime PM APIs to enable Keystone clock (Kishon Vijay Abraham I)
- Clean up Keystone config space access checks (Kishon Vijay Abraham I)
- Get Keystone outbound window count from DT (Kishon Vijay Abraham I)
- Clean up Keystone outbound window configuration (Kishon Vijay Abraham
I)
- Clean up Keystone DBI setup (Kishon Vijay Abraham I)
- Clean up Keystone ks_pcie_link_up() (Kishon Vijay Abraham I)
- Fix Keystone IRQ status checking (Kishon Vijay Abraham I)
- Add debug messages for all Keystone errors (Kishon Vijay Abraham I)
- Clean up Keystone includes and macros (Kishon Vijay Abraham I)
- Fix Mediatek unchecked return value from devm_pci_remap_iospace()
(Gustavo A. R. Silva)
- Fix Mediatek endpoint/port matching logic (Honghui Zhang)
- Change Mediatek Root Port Class Code to PCI_CLASS_BRIDGE_PCI (Honghui
Zhang)
- Remove redundant Mediatek PM domain check (Honghui Zhang)
- Convert Mediatek to pci_host_probe() (Honghui Zhang)
- Fix Mediatek MSI enablement (Honghui Zhang)
- Add Mediatek system PM support for MT2712 and MT7622 (Honghui Zhang)
- Add Mediatek loadable module support (Honghui Zhang)
- Detach VMD resources after stopping root bus to prevent orphan
resources (Jon Derrick)
- Convert pcitest build process to that used by other tools (iio, perf,
etc) (Gustavo Pimentel)
* tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits)
PCI/AER: Refactor error injection fallbacks
PCI/AER: Abstract AER interrupt handling
PCI/AER: Reuse existing pcie_port_find_device() interface
PCI/AER: Use managed resource allocations
PCI: pcie: Remove redundant 'default n' from Kconfig
PCI: aardvark: Implement emulated root PCI bridge config space
PCI: mvebu: Convert to PCI emulated bridge config space
PCI: mvebu: Drop unused PCI express capability code
PCI: Introduce PCI bridge emulated config space common logic
PCI: vmd: Detach resources after stopping root bus
nvmet: Optionally use PCI P2P memory
nvmet: Introduce helper functions to allocate and free request SGLs
nvme-pci: Add support for P2P memory in requests
nvme-pci: Use PCI p2pmem subsystem to manage the CMB
IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]()
block: Add PCI P2P flag for request queue
PCI/P2PDMA: Add P2P DMA driver writer's documentation
docs-rst: Add a new directory for PCI documentation
PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers
PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset
...
- Fix ACPICA issues related to the handling of module-level AML
and make the ACPI initialization code parse ECDT before loading
the definition block tables (Erik Schmauss).
- Update ACPICA to upstream revision 20181003 including fixes
related to the ill-defined "generic serial bus" and the handling
of the _REG object (Bob Moore).
- Fix some issues with system-wide suspend/resume on Intel BYT/CHT
related to the handling of I2C controllers in the ACPI LPSS driver
for Intel SoCs (Hans de Goede).
- Modify the ACPI namespace scanning code to enumerate INT33FE HID
devices as platform devices with I2C resources to avoid device
enumeration problems on boards with Dollar Cove or Whiskey Cove
Intel PMICs (Hans de Goede).
- Prevent ACPICA from using ktime_get() during early resume from
system-wide suspend before resuming the timekeeping which generally
is unsafe and triggers a warning from the timekeeping code (Bart
Van Assche).
- Add low-level real time clock support to the ACPI Time and Aalarm
Device (TAD) driver (Rafael Wysocki).
- Fix the ACPI SBS driver to avoid GPE storms on MacBook Pro and
Oopses when removing modules (Ronald Tschalär).
- Fix the ACPI PPTT parsing code to handle architecturally unknown
cache types properly (Jeffrey Hugo).
- Fix initialization issue in the ACPI processor driver (Dou Liyang).
- Clean up the code in several places (Andy Shevchenko, Bartlomiej
Zolnierkiewicz, David Arcari, zhong jiang).
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Merge tag 'acpi-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These fix ACPICA issues related to the handling of module-level AML,
fix an ordering issue during ACPI initialization, update ACPICA to
upstream revision 20181003 (including fixes mostly), fix issues with
system-wide suspend/resume related to the ACPI driver for Intel SoCs
(LPSS), fix device enumeration issues on boards with Dollar Cove or
Whiskey Cove Intel PMICs, prevent ACPICA from calling ktime_get() in
unsuitable conditions, update a few drivers and clean up some code in
several places.
Specifics:
- Fix ACPICA issues related to the handling of module-level AML and
make the ACPI initialization code parse ECDT before loading the
definition block tables (Erik Schmauss).
- Update ACPICA to upstream revision 20181003 including fixes related
to the ill-defined "generic serial bus" and the handling of the
_REG object (Bob Moore).
- Fix some issues with system-wide suspend/resume on Intel BYT/CHT
related to the handling of I2C controllers in the ACPI LPSS driver
for Intel SoCs (Hans de Goede).
- Modify the ACPI namespace scanning code to enumerate INT33FE HID
devices as platform devices with I2C resources to avoid device
enumeration problems on boards with Dollar Cove or Whiskey Cove
Intel PMICs (Hans de Goede).
- Prevent ACPICA from using ktime_get() during early resume from
system-wide suspend before resuming the timekeeping which generally
is unsafe and triggers a warning from the timekeeping code (Bart
Van Assche).
- Add low-level real time clock support to the ACPI Time and Aalarm
Device (TAD) driver (Rafael Wysocki).
- Fix the ACPI SBS driver to avoid GPE storms on MacBook Pro and
Oopses when removing modules (Ronald Tschalär).
- Fix the ACPI PPTT parsing code to handle architecturally unknown
cache types properly (Jeffrey Hugo).
- Fix initialization issue in the ACPI processor driver (Dou Liyang).
- Clean up the code in several places (Andy Shevchenko, Bartlomiej
Zolnierkiewicz, David Arcari, zhong jiang)"
* tag 'acpi-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (33 commits)
ACPI / scan: Create platform device for INT33FE ACPI nodes
ACPI / OSL: Use 'jiffies' as the time bassis for acpi_os_get_timer()
ACPI: probe ECDT before loading AML tables regardless of module-level code flag
ACPICA: Remove acpi_gbl_group_module_level_code and only use acpi_gbl_execute_tables_as_methods instead
ACPICA: AML Parser: fix parse loop to correctly skip erroneous extended opcodes
ACPICA: AML interpreter: add region addresses in global list during initialization
ACPI: TAD: Add low-level support for real time capability
ACPI: remove redundant 'default n' from Kconfig
ACPI / SBS: Fix rare oops when removing modules
ACPI / SBS: Fix GPE storm on recent MacBookPro's
ACPI/PPTT: Handle architecturally unknown cache types
drivers: base: cacheinfo: Do not populate sysfs for unknown cache types
ACPICA: Update version to 20181003
ACPICA: Never run _REG on system_memory and system_IO
ACPICA: Split large interpreter file
ACPICA: Update for field unit access
ACPICA: Rename some of the Field Attribute defines
ACPICA: Update for generic_serial_bus and attrib_raw_process_bytes protocol
ACPI / processor: Fix the return value of acpi_processor_ids_walk()
ACPI / LPSS: Resume BYT/CHT I2C controllers from resume_noirq
...
- Backport hibernation bug fixes from x86-64 to x86-32 and
consolidate hibernation handling on x86 to allow 32-bit
systems to work in all of the cases in which 64-bit ones
work (Zhimin Gu, Chen Yu).
- Fix hibernation documentation (Vladimir D. Seleznev).
- Update the menu cpuidle governor to fix a couple of issues
with it, make it more efficient in some cases and clean it
up (Rafael Wysocki).
- Rework the cpuidle polling state implementation to make it
more efficient (Rafael Wysocki).
- Clean up the cpuidle core somewhat (Fieah Lim).
- Fix the cpufreq conservative governor to take policy limits
into account properly in some cases (Rafael Wysocki).
- Add support for retrieving guaranteed performance information
to the ACPI CPPC library and make the intel_pstate driver use
it to expose the CPU base frequency via sysfs on systems with
the hardware-managed P-states (HWP) feature enabled (Srinivas
Pandruvada).
- Fix clang warning in the CPPC cpufreq driver (Nathan Chancellor).
- Get rid of device_node.name printing from cpufreq (Rob Herring).
- Remove unnecessary unlikely() from the cpufreq core (Igor Stoppa).
- Add support for the r8a7744 SoC to the cpufreq-dt driver (Biju Das).
- Update the dt-platdev cpufreq driver to allow RK3399 to have
separate tunables per cluster (Dmitry Torokhov).
- Fix the dma_alloc_coherent() usage in the tegra186 cpufreq driver
(Christoph Hellwig).
- Make the imx6q cpufreq driver read OCOTP through nvmem for
imx6ul/imx6ull (Anson Huang).
- Fix several bugs in the operating performance points (OPP)
framework and make it more stable (Viresh Kumar, Dave Gerlach).
- Update the devfreq subsystem to take changes in the APIs used
by into account, fix some issues with it and make it stop
print device_node.name directly (Bjorn Andersson, Enric Balletbo
i Serra, Matthias Kaehlcke, Rob Herring, Vincent Donnefort, zhong
jiang).
- Prepare the generic power domains (genpd) framework for dealing
with domains containing CPUs (Ulf Hansson).
- Prevent sysfs attributes representing low-power S0 residency
counters from being exposed if low-power S0 support is not
indicated in ACPI FADT (Rajneesh Bhardwaj).
- Get rid of custom CPU features macros for Intel CPUs from the
intel_idle and RAPL drivers (Andy Shevchenko).
- Update the tasks freezer to list tasks that refused to freeze
and caused a system transition to a sleep state to be aborted
(Todd Brandt).
- Update the pm-graph set of tools to v5.2 (Todd Brandt).
- Fix some issues in the cpupower utility (Anders Roxell, Prarit
Bhargava).
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Merge tag 'pm-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These make hibernation on 32-bit x86 systems work in all of the cases
in which it works on 64-bit x86 ones, update the menu cpuidle governor
and the "polling" state to make them more efficient, add more hardware
support to cpufreq drivers and fix issues with some of them, fix a bug
in the conservative cpufreq governor, fix the operating performance
points (OPP) framework and make it more stable, update the devfreq
subsystem to take changes in the APIs used by into account and clean
up some things all over.
Specifics:
- Backport hibernation bug fixes from x86-64 to x86-32 and
consolidate hibernation handling on x86 to allow 32-bit systems to
work in all of the cases in which 64-bit ones work (Zhimin Gu, Chen
Yu).
- Fix hibernation documentation (Vladimir D. Seleznev).
- Update the menu cpuidle governor to fix a couple of issues with it,
make it more efficient in some cases and clean it up (Rafael
Wysocki).
- Rework the cpuidle polling state implementation to make it more
efficient (Rafael Wysocki).
- Clean up the cpuidle core somewhat (Fieah Lim).
- Fix the cpufreq conservative governor to take policy limits into
account properly in some cases (Rafael Wysocki).
- Add support for retrieving guaranteed performance information to
the ACPI CPPC library and make the intel_pstate driver use it to
expose the CPU base frequency via sysfs on systems with the
hardware-managed P-states (HWP) feature enabled (Srinivas
Pandruvada).
- Fix clang warning in the CPPC cpufreq driver (Nathan Chancellor).
- Get rid of device_node.name printing from cpufreq (Rob Herring).
- Remove unnecessary unlikely() from the cpufreq core (Igor Stoppa).
- Add support for the r8a7744 SoC to the cpufreq-dt driver (Biju
Das).
- Update the dt-platdev cpufreq driver to allow RK3399 to have
separate tunables per cluster (Dmitry Torokhov).
- Fix the dma_alloc_coherent() usage in the tegra186 cpufreq driver
(Christoph Hellwig).
- Make the imx6q cpufreq driver read OCOTP through nvmem for
imx6ul/imx6ull (Anson Huang).
- Fix several bugs in the operating performance points (OPP)
framework and make it more stable (Viresh Kumar, Dave Gerlach).
- Update the devfreq subsystem to take changes in the APIs used by
into account, fix some issues with it and make it stop print
device_node.name directly (Bjorn Andersson, Enric Balletbo i Serra,
Matthias Kaehlcke, Rob Herring, Vincent Donnefort, zhong jiang).
- Prepare the generic power domains (genpd) framework for dealing
with domains containing CPUs (Ulf Hansson).
- Prevent sysfs attributes representing low-power S0 residency
counters from being exposed if low-power S0 support is not
indicated in ACPI FADT (Rajneesh Bhardwaj).
- Get rid of custom CPU features macros for Intel CPUs from the
intel_idle and RAPL drivers (Andy Shevchenko).
- Update the tasks freezer to list tasks that refused to freeze and
caused a system transition to a sleep state to be aborted (Todd
Brandt).
- Update the pm-graph set of tools to v5.2 (Todd Brandt).
- Fix some issues in the cpupower utility (Anders Roxell, Prarit
Bhargava)"
* tag 'pm-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (73 commits)
PM / Domains: Document flags for genpd
PM / Domains: Deal with multiple states but no governor in genpd
PM / Domains: Don't treat zero found compatible idle states as an error
cpuidle: menu: Avoid computations when result will be discarded
cpuidle: menu: Drop redundant comparison
cpufreq: tegra186: don't pass GFP_DMA32 to dma_alloc_coherent()
cpufreq: conservative: Take limits changes into account properly
Documentation: intel_pstate: Add base_frequency information
cpufreq: intel_pstate: Add base_frequency attribute
ACPI / CPPC: Add support for guaranteed performance
cpuidle: menu: Simplify checks related to the polling state
PM / tools: sleepgraph and bootgraph: upgrade to v5.2
PM / tools: sleepgraph: first batch of v5.2 changes
cpupower: Fix coredump on VMWare
cpupower: Fix AMD Family 0x17 msr_pstate size
cpufreq: imx6q: read OCOTP through nvmem for imx6ul/imx6ull
cpufreq: dt-platdev: allow RK3399 to have separate tunables per cluster
cpuidle: poll_state: Revise loop termination condition
cpuidle: menu: Move the latency_req == 0 special case check
cpuidle: menu: Avoid computations for very close timers
...
acpi_gbl_group_module_level_code and acpi_gbl_execute_tables_as_methods were
used to enable different table load behavior. The different table
load behaviors are as follows:
A.) acpi_gbl_group_module_level_code enabled the legacy approach where
ASL if statements are executed after the namespace object has
been loaded.
B.) acpi_gbl_execute_tables_as_methods is currently used to enable the
table load to be a method invocation. This meaning that ASL If
statements are executed in-line rather than deferred until after
the ACPI namespace has been populated. This is the correct
behavior and option A will be removed in the future.
We do not support a table load behavior where these variables are
assigned the same value. In otherwords, we only support option A or B
and do not need acpi_gbl_group_module_level_code to enable A. From now on,
acpi_gbl_execute_tables_as_methods == 0 enables option A and
acpi_gbl_execute_tables_as_methods == 1 enables option B.
Note: option A is expected to be removed in the future and option B
will become the only supported table load behavior.
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The Continuous Performance Control package may contain an optional
guaranteed performance field.
Add support to read guaranteed performance from _CPC.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Version 20181003
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Mostly for access to Generic Serial Bus, but also cleanup
for the other fields.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cleanup for this write-then-read protocol. The ACPI specification
is rather unclear for the entire generic_serial_bus, but this
change works correctly on the Surface 3.
Reported-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
It is possible to have _DSD entries where the data is compatible with
device properties format but are using different GUID for various reasons.
In addition to that there can be many such _DSD entries for a single device
such as for PCIe root port used to host a Thunderbolt hierarchy:
Scope (\_SB.PCI0.RP21)
{
Name (_DSD, Package () {
ToUUID ("6211e2c0-58a3-4af3-90e1-927a4e0c55a4"),
Package () {
Package () {"HotPlugSupportInD3", 1}
},
ToUUID ("efcc06cc-73ac-4bc3-bff0-76143807c389"),
Package () {
Package () {"ExternalFacingPort", 1},
Package () {"UID", 0 }
}
})
}
More information about these new _DSD entries can be found in:
https://docs.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-root-ports
To make these available for drivers via unified device property APIs,
modify ACPI property core so that it supports multiple _DSD entries
organized in a linked list. We also store GUID of each _DSD entry in struct
acpi_device_properties in case there is need to differentiate between
entries. The supported GUIDs are then listed in prp_guids array.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
This goes through a lot of hooks just to call arch_teardown_dma_ops.
Replace it with a direct call instead.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Version 20180810.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Increase the reference count limit to 0x4000 as the current one is
not sufficient for some large server systems.
Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Tested-by: Russ Anderson <russ.anderson@hpe.com>
Reported-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
[ rjw: Changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Macros to classify different AML exception codes have been added in
order to ignore the exceptions,
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
[ rjw: Fix damaged white space ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Merge ACPI x86-specific changes, core updates, EC driver updates and
APEI support updates for 4.19.
These add a special platform driver for handling multiple I2C devices
hooked up to the same device object in the ACPI tables, add some new
quirks and remove one that is not needed any more.
* acpi-x86:
platform/x86: Add ACPI i2c-multi-instantiate pseudo driver
ACPI / x86: utils: Remove status workaround from acpi_device_always_present()
ACPI / x86: enable touchscreen on Dell Venue Pro 7139
* acpi-bus:
ACPI: bus: Fix a pointer coding style issue
Revert "ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530"
* acpi-ec:
ACPI / EC: Add another entry for Thinkpad X1 Carbon 6th
ACPI / EC: Use ec_no_wakeup on ThinkPad X1 Yoga 3rd
* acpi-apei:
arm64 / ACPI: clean the additional checks before calling ghes_notify_sea()
In order to remove the additional check before calling the
ghes_notify_sea(), make stub definition when !CONFIG_ACPI_APEI_SEA.
After this cleanup, we can simply call the ghes_notify_sea() to let
APEI driver handle the SEA notification.
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Version 20180629.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit bca5f557dc "ACPI / processor: Make acpi_processor_ppc_has_changed()
void" changed one of the declarations of acpi_processor_ppc_has_changed()
to return void, but the !CPU_FREQ version still returns int. Let's return
void to be consistent.
Fixes: bca5f557dc "ACPI / processor: Make acpi_processor_ppc_has_changed() void"
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- Update the ACPICA code in the kernel to upstream revision
20180531 including:
* AML parser fix to continue loading tables after detecting an AML
error (Erik Schmauss).
* AML parser debug option to dump parse trees (Bob Moore).
* Debugger updates (Bob Moore).
* Initial bits of Unload () operator deprecation (Bob Moore).
* Updates related to the IORT table (Robin Murphy).
- Make Linux respond to the "Windows 2017.2" _OSI string which
allows native Thunderbolt enumeration to be used on Dell systems
and was unsafe before recent changes in the PCI subsystem (Mario
Limonciello).
- Update the ACPI method customization feature documentation (Erik
Schmauss).
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Merge tag 'acpi-4.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull additional ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream revision
20180531 including one important AML parser fix and updates related to
the IORT table, make the kernel recognize the "Windows 2017.2" _OSI
string and update the customized methods documentation.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20180531
including:
* AML parser fix to continue loading tables after detecting an AML
error (Erik Schmauss).
* AML parser debug option to dump parse trees (Bob Moore).
* Debugger updates (Bob Moore).
* Initial bits of Unload () operator deprecation (Bob Moore).
* Updates related to the IORT table (Robin Murphy).
- Make Linux respond to the "Windows 2017.2" _OSI string which
allows native Thunderbolt enumeration to be used on Dell systems
and was unsafe before recent changes in the PCI subsystem (Mario
Limonciello)
- Update the ACPI method customization feature documentation (Erik
Schmauss)"
* tag 'acpi-4.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPICA: Recognize the _OSI string "Windows 2017.2"
ACPICA: Update version to 20180531
ACPICA: Interpreter: Begin deprecation of Unload operator
ACPICA: AML parser: attempt to continue loading table after error
ACPICA: Debugger: Reduce verbosity for module-level code errors.
ACPICA: AML Parser: Add debug option to dump parse trees
ACPICA: Debugger: Add count of namespace nodes after namespace dump
ACPICA: IORT: Add PMCG node supprt
ACPICA: IORT: Update for revision D
ACPI / Documentation: update ACPI customize method feature docs
Dell uses this string to activate Thunderbolt native mode on supported
machines.
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Version 20180531.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Debug level 0x00800000 will dump the current parse tree
just before it is deleted.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
PMCG nodes were added by IORT revision C, with the unfortunate oversight
that it only defined a single base address, and thus was incapable of
properly describing PMCG implementations with PMCG_CFGR.RELOC_CTRS = 1,
where the counters are in a separate page from the control registers.
Revision D corrects this by clarifying the existing field as the page 0
base address and adding a second field to describe the page 1 address
when implemented. With the spec now fit for purpose, let's support it.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
IORT revision D contains a few additions and fixes to
currently-supported tables:
- SMMUv3 proximity domain field is enlarged to 4 bytes for consistency
with SRAT
- Root complex nodes gain an address size limit field equivalent to that
of named components
- Named component nodes gain a way to describe PASID (substream_ID)
support, encoded in their flags
Additionally, we fix a couple of outstanding points in passing:
- Add the stall support flag for named components defined in revision C
- Fix SMMUv3 HTTU override mask, which should always have been 2 bits
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
These update the ACPICA code in the kernel to the 20180508 upstream
revision and make it support the RT patch, add CPPC v3 support to the
ACPI CPPC library, add a WDAT-based watchdog quirk to prevent clashes
with the RTC, add quirks to the ACPI AC and battery drivers, and
update the ACPI SoC drivers.
Specifics:
- Update the ACPICA code in the kernel to the 20180508 upstream
revision including:
* iASL -tc option enhancement (Bob Moore).
* Debugger improvements (Bob Moore).
* Support for tables larger than 1 MB in acpidump/acpixtract
(Bob Moore).
* Minor fixes and cleanups (Colin Ian King, Toomas Soome).
- Make the ACPICA code in the kernel support the RT patch (Sebastian
Andrzej Siewior, Steven Rostedt).
- Add a kmemleak annotation to the ACPICA code (Larry Finger).
- Add CPPC v3 support to the ACPI CPPC library and fix two issues
related to CPPC (Prashanth Prakash, Al Stone).
- Add an ACPI WDAT-based watchdog quirk to prefer iTCO_wdt on
systems where WDAT clashes with the RTC SRAM (Mika Westerberg).
- Add some quirks to the ACPI AC and battery drivers (Carlo Caione,
Hans de Goede).
- Update the ACPI SoC drivers for Intel (LPSS) and AMD (APD)
platforms (Akshu Agrawal, Hans de Goede).
- Fix up some assorted minor issues (Al Stone, Laszlo Toth,
Mathieu Malaterre).
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Merge tag 'acpi-4.18-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 the 20180508 upstream
revision and make it support the RT patch, add CPPC v3 support to the
ACPI CPPC library, add a WDAT-based watchdog quirk to prevent clashes
with the RTC, add quirks to the ACPI AC and battery drivers, and
update the ACPI SoC drivers.
Specifics:
- Update the ACPICA code in the kernel to the 20180508 upstream
revision including:
* iASL -tc option enhancement (Bob Moore).
* Debugger improvements (Bob Moore).
* Support for tables larger than 1 MB in acpidump/acpixtract (Bob
Moore).
* Minor fixes and cleanups (Colin Ian King, Toomas Soome).
- Make the ACPICA code in the kernel support the RT patch (Sebastian
Andrzej Siewior, Steven Rostedt).
- Add a kmemleak annotation to the ACPICA code (Larry Finger).
- Add CPPC v3 support to the ACPI CPPC library and fix two issues
related to CPPC (Prashanth Prakash, Al Stone).
- Add an ACPI WDAT-based watchdog quirk to prefer iTCO_wdt on systems
where WDAT clashes with the RTC SRAM (Mika Westerberg).
- Add some quirks to the ACPI AC and battery drivers (Carlo Caione,
Hans de Goede).
- Update the ACPI SoC drivers for Intel (LPSS) and AMD (APD)
platforms (Akshu Agrawal, Hans de Goede).
- Fix up some assorted minor issues (Al Stone, Laszlo Toth, Mathieu
Malaterre)"
* tag 'acpi-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
ACPICA: Mark acpi_ut_create_internal_object_dbg() memory allocations as non-leaks
ACPI / watchdog: Prefer iTCO_wdt always when WDAT table uses RTC SRAM
mailbox: PCC: erroneous error message when parsing ACPI PCCT
ACPICA: Update version to 20180508
ACPICA: acpidump/acpixtract: Support for tables larger than 1MB
ACPI: APD: Add AMD misc clock handler support
clk: x86: Add ST oscout platform clock
ACPICA: Update version to 20180427
ACPICA: Debugger: Removed direct support for EC address space in "Test Objects"
ACPICA: Debugger: Add Package support for "test objects" command
ACPICA: Improve error messages for the namespace root node
ACPICA: Fix potential infinite loop in acpi_rs_dump_byte_list
ACPICA: vsnprintf: this statement may fall through
ACPICA: Tables: Fix spelling mistake in comment
ACPICA: iASL: Enhance the -tc option (create AML hex file in C)
ACPI: Add missing prototype_for arch_post_acpi_subsys_init()
ACPI / tables: improve comments regarding acpi_parse_entries_array()
ACPICA: Convert acpi_gbl_hardware lock back to an acpi_raw_spinlock
ACPICA: provide abstraction for raw_spinlock_t
ACPI / CPPC: Fix invalid PCC channel status errors
...
* acpi-cppc:
mailbox: PCC: erroneous error message when parsing ACPI PCCT
ACPI / CPPC: Fix invalid PCC channel status errors
ACPI / CPPC: Document CPPC sysfs interface
cpufreq / CPPC: Support for CPPC v3
ACPI / CPPC: Check for valid PCC subspace only if PCC is used
ACPI / CPPC: Add support for CPPC v3
* acpi-misc:
ACPI: Add missing prototype_for arch_post_acpi_subsys_init()
ACPI: add missing newline to printk
* acpi-battery:
ACPI / battery: Add quirk to avoid checking for PMIC with native driver
ACPI / battery: Ignore AC state in handle_discharging on systems where it is broken
ACPI / battery: Add handling for devices which wrongly report discharging state
ACPI / battery: Remove initializer for unused ident dmi_system_id
ACPI / AC: Remove initializer for unused ident dmi_system_id
* acpi-ac:
ACPI / AC: Add quirk to avoid checking for PMIC with native driver
Introduce acpi_dispatch_gpe() as a wrapper around acpi_ev_detect_gpe()
for checking if the given GPE (as represented by a GPE device handle
and a GPE number) is currently active and dispatching it (if that's
the case) outside of interrupt context.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Version 20180508.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Version 20180427.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Replace "\___" with actual descriptive text.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The use of the @ghes argument was removed in a previous commit, but
function signature was not updated to reflect this.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: linux-acpi@vger.kernel.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180430213358.8319-1-mr.nuke.me@gmail.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Provide a new lock type acpi_raw_spinlock which is implemented as
raw_spinlock_t on Linux. This type should be used in code which covers
small areas of code and disables interrupts only for short time even on
a realtime OS.
There is a fallback to spinlock_t if an OS does not provide an
implementation for acpi_raw_spinlock.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tony reported seeing
"Internal error: Can't find EDAC structure"
when injecting correctable errors due to the fact that ghes_edac would
still load even if the whitelist won't hit. Drop the pr_err() in
ghes_edac_report_mem_error() for now due to the hacky way how ghes_edac
depends on ghes.c.
While at it, make ghes_edac_register() return an error if it doesn't hit
in the whitelist as it is the only sensible thing to do in that
situation.
Furthermore, move the call to it to happen last in ghes_probe() so that
GHES initializing properly does not depend on ghes_edac init at all
as latter is only reporting errors and not required for GHES's proper
functioning.
Reviewed-by: Toshi Kani <toshi.kani@hpe.com>
Tested-by: Sughosh Ganu <sughosh.ganu@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20180420182015.zao3olss4tvvlxki@agluck-desk
CPPC V3 introduces two new entries to make it easier to convert between
abstract processor performance and frequency. The two new entries are
lowest frequency and nominal frequency. These are the frequencies
corresponding to lowest and nominal abstract performance.
Add support to read the new entries and populate them as part of the
CPPC performance capabilities which can be used by cpufreq drivers
Signed-off-by: Prashanth Prakash <pprakash@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Merge tag 'for-linus-4.17-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"A few fixes of Xen related core code and drivers"
* tag 'for-linus-4.17-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/pvh: Indicate XENFEAT_linux_rsdp_unrestricted to Xen
xen/acpi: off by one in read_acpi_id()
xen/acpi: upload _PSD info for non Dom0 CPUs too
x86/xen: Delay get_cpu_cap until stack canary is established
xen: xenbus_dev_frontend: Verify body of XS_TRANSACTION_END
xen: xenbus: Catch closing of non existent transactions
xen: xenbus_dev_frontend: Fix XS_TRANSACTION_END handling
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Merge tag 'pci-v4.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- move pci_uevent_ers() out of pci.h (Michael Ellerman)
- skip ASPM common clock warning if BIOS already configured it (Sinan
Kaya)
- fix ASPM Coverity warning about threshold_ns (Gustavo A. R. Silva)
- remove last user of pci_get_bus_and_slot() and the function itself
(Sinan Kaya)
- add decoding for 16 GT/s link speed (Jay Fang)
- add interfaces to get max link speed and width (Tal Gilboa)
- add pcie_bandwidth_capable() to compute max supported link bandwidth
(Tal Gilboa)
- add pcie_bandwidth_available() to compute bandwidth available to
device (Tal Gilboa)
- add pcie_print_link_status() to log link speed and whether it's
limited (Tal Gilboa)
- use PCI core interfaces to report when device performance may be
limited by its slot instead of doing it in each driver (Tal Gilboa)
- fix possible cpqphp NULL pointer dereference (Shawn Lin)
- rescan more of the hierarchy on ACPI hotplug to fix Thunderbolt/xHCI
hotplug (Mika Westerberg)
- add support for PCI I/O port space that's neither directly accessible
via CPU in/out instructions nor directly mapped into CPU physical
memory space. This is fairly intrusive and includes minor changes to
interfaces used for I/O space on most platforms (Zhichang Yuan, John
Garry)
- add support for HiSilicon Hip06/Hip07 LPC I/O space (Zhichang Yuan,
John Garry)
- use PCI_EXP_DEVCTL2_COMP_TIMEOUT in rapidio/tsi721 (Bjorn Helgaas)
- remove possible NULL pointer dereference in of_pci_bus_find_domain_nr()
(Shawn Lin)
- report quirk timings with dev_info (Bjorn Helgaas)
- report quirks that take longer than 10ms (Bjorn Helgaas)
- add and use Altera Vendor ID (Johannes Thumshirn)
- tidy Makefiles and comments (Bjorn Helgaas)
- don't set up INTx if MSI or MSI-X is enabled to align cris, frv,
ia64, and mn10300 with x86 (Bjorn Helgaas)
- move pcieport_if.h to drivers/pci/pcie/ to encapsulate it (Frederick
Lawler)
- merge pcieport_if.h into portdrv.h (Bjorn Helgaas)
- move workaround for BIOS PME issue from portdrv to PCI core (Bjorn
Helgaas)
- completely disable portdrv with "pcie_ports=compat" (Bjorn Helgaas)
- remove portdrv link order dependency (Bjorn Helgaas)
- remove support for unused VC portdrv service (Bjorn Helgaas)
- simplify portdrv feature permission checking (Bjorn Helgaas)
- remove "pcie_hp=nomsi" parameter (use "pci=nomsi" instead) (Bjorn
Helgaas)
- remove unnecessary "pcie_ports=auto" parameter (Bjorn Helgaas)
- use cached AER capability offset (Frederick Lawler)
- don't enable DPC if BIOS hasn't granted AER control (Mika Westerberg)
- rename pcie-dpc.c to dpc.c (Bjorn Helgaas)
- use generic pci_mmap_resource_range() instead of powerpc and xtensa
arch-specific versions (David Woodhouse)
- support arbitrary PCI host bridge offsets on sparc (Yinghai Lu)
- remove System and Video ROM reservations on sparc (Bjorn Helgaas)
- probe for device reset support during enumeration instead of runtime
(Bjorn Helgaas)
- add ACS quirk for Ampere (née APM) root ports (Feng Kan)
- add function 1 DMA alias quirk for Marvell 88SE9220 (Thomas
Vincent-Cross)
- protect device restore with device lock (Sinan Kaya)
- handle failure of FLR gracefully (Sinan Kaya)
- handle CRS (config retry status) after device resets (Sinan Kaya)
- skip various config reads for SR-IOV VFs as an optimization
(KarimAllah Ahmed)
- consolidate VPD code in vpd.c (Bjorn Helgaas)
- add Tegra dependency on PCI_MSI_IRQ_DOMAIN (Arnd Bergmann)
- add DT support for R-Car r8a7743 (Biju Das)
- fix a PCI_EJECT vs PCI_BUS_RELATIONS race condition in Hyper-V host
bridge driver that causes a general protection fault (Dexuan Cui)
- fix Hyper-V host bridge hang in MSI setup on 1-vCPU VMs with SR-IOV
(Dexuan Cui)
- fix Hyper-V host bridge hang when ejecting a VF before setting up MSI
(Dexuan Cui)
- make several structures static (Fengguang Wu)
- increase number of MSI IRQs supported by Synopsys DesignWare bridges
from 32 to 256 (Gustavo Pimentel)
- implemented multiplexed IRQ domain API and remove obsolete MSI IRQ
API from DesignWare drivers (Gustavo Pimentel)
- add Tegra power management support (Manikanta Maddireddy)
- add Tegra loadable module support (Manikanta Maddireddy)
- handle 64-bit BARs correctly in endpoint support (Niklas Cassel)
- support optional regulator for HiSilicon STB (Shawn Guo)
- use regulator bulk API for Qualcomm apq8064 (Srinivas Kandagatla)
- support power supplies for Qualcomm msm8996 (Srinivas Kandagatla)
* tag 'pci-v4.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (123 commits)
MAINTAINERS: Add John Garry as maintainer for HiSilicon LPC driver
HISI LPC: Add ACPI support
ACPI / scan: Do not enumerate Indirect IO host children
ACPI / scan: Rename acpi_is_serial_bus_slave() for more general use
HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings
of: Add missing I/O range exception for indirect-IO devices
PCI: Apply the new generic I/O management on PCI IO hosts
PCI: Add fwnode handler as input param of pci_register_io_range()
PCI: Remove __weak tag from pci_register_io_range()
MAINTAINERS: Add missing /drivers/pci/cadence directory entry
fm10k: Report PCIe link properties with pcie_print_link_status()
net/mlx5e: Use pcie_bandwidth_available() to compute bandwidth
net/mlx5: Report PCIe link properties with pcie_print_link_status()
net/mlx4_core: Report PCIe link properties with pcie_print_link_status()
PCI: Add pcie_print_link_status() to log link speed and whether it's limited
PCI: Add pcie_bandwidth_available() to compute bandwidth available to device
misc: pci_endpoint_test: Handle 64-bit BARs properly
PCI: designware-ep: Make dw_pcie_ep_reset_bar() handle 64-bit BARs properly
PCI: endpoint: Make sure that BAR_5 does not have 64-bit flag set when clearing
PCI: endpoint: Make epc->ops->clear_bar()/pci_epc_clear_bar() take struct *epf_bar
...
* misc fixes
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Merge tag 'edac_for_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
"Noteworthy is the NVDIMM support:
- NVDIMM support to EDAC (Tony Luck)
- misc fixes"
* tag 'edac_for_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC, sb_edac: Remove variable length array usage
EDAC, skx_edac: Detect non-volatile DIMMs
firmware, DMI: Add function to look up a handle and return DIMM size
acpi, nfit: Add function to look up nvdimm device and provide SMBIOS handle
EDAC: Add new memory type for non-volatile DIMMs
EDAC: Drop duplicated array of strings for memory type names
EDAC, layerscape: Allow building for LS1021A
Currently the ACPI scan has special handling for serial bus slaves, in that
it makes it the responsibility of the slave device's parent to enumerate
the device.
To support other types of slave devices which require the same special
handling but where the bus is not strictly a serial bus, such as devices on
the HiSilicon LPC controller bus, rename acpi_is_serial_bus_slave() to
acpi_device_enumeration_by_parent(), so that the name can fit the wider
purpose.
Also rename the associated device flag acpi_device_flags.serial_bus_slave
to .enumeration_by_parent.
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* acpi-battery:
Revert "ACPI: battery: Add the ThinkPad "Not Charging" quirk"
ACPI: battery: do not export degraded capacity values over 100
ACPI: battery: make function __battery_hook_unregister() static
ACPI: battery: Add the ThinkPad "Not Charging" quirk
thinkpad_acpi: Add support for battery thresholds
power: add to_power_supply macro to the API
battery: Add the battery hooking API
* acpi-doc:
ACPI: sysfs: Update device object sysfs documentation
* acpi-pmic:
ACPI / PMIC: Replace license boilerplate with SPDX license identifier
All uploaded PM data from non-dom0 CPUs takes the info from vCPU 0 and
changing only the acpi_id. For processors which P-state coordination type
is HW_ALL (0xFD) it is OK to upload bogus P-state dependency information
(_PSD), because Xen will ignore any cpufreq domains created for past CPUs.
Albeit for platforms which expose coordination types as SW_ANY or SW_ALL,
this will have some unintended side effects. Effectively, it will look at
the P-state domain existence and *if it already exists* it will skip the
acpi-cpufreq initialization and thus inherit the policy from the first CPU
in the cpufreq domain. This will finally lead to the original cpu not
changing target freq to P0 other than the first in the domain. Which will
make turbo boost not getting enabled (e.g. for 'performance' governor) for
all cpus.
This patch fixes that, by also evaluating _PSD when we enumerate all ACPI
processors and thus always uploading the correct info to Xen. We export
acpi_processor_get_psd() for that this purpose, but change signature
to not assume an existent of acpi_processor given that ACPI isn't creating
an acpi_processor for non-dom0 CPUs.
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Version 20180313.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This prepares the code for eventual removal of the original
style of deferred execution of the MLC.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Was acpi_gbl_parse_table_as_term_list, changed to:
acpi_gbl_execute_tables_as_methods.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Changes the option to ignore package resolution errors into
a runtime option.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
As the documentatuon above its declaration indicates, acpi_get_object_info()
is intended for early probe usage and as such should not call any methods
which may rely on op_regions, before this commit it was also calling _STA,
which on some systems does rely on op_regions.
Calling _STA before things are ready leads to errors such as these
(under Linux, on some hardware):
[ 0.123579] ACPI Error: No handler for Region [ECRM] (00000000ba9edc4c)
[generic_serial_bus] (20170831/evregion-166)
[ 0.123601] ACPI Error: Region generic_serial_bus (ID=9) has no handler
(20170831/exfldio-299)
[ 0.123618] ACPI Error: Method parse/execution failed
\_SB.I2C1.BAT1._STA, AE_NOT_EXIST (20170831/psparse-550)
End 2015 support for the _SUB method was removed for exactly the same
reason. Removing current_status from struct acpi_device_info only has a limited
impact. Within ACPICA it is only used by 2 debug messages, both
of which are modified to no longer print it with this commit.
Outside of ACPICA, there was one user in Linux, which has been patched to
no longer use current_status in Torvald's current master.
I've not checked if free_BSD or others are using the current_status field.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
After being enabled for the first time, the GPEs may have STS bits already
set. Setting EN bits is not sufficient to trigger the GPEs again, so this
patch polls GPEs after enabling them for the first time.
This is a cleaner version on top of the "GPE clear" fix generated according
to Mika's report and Rafael's original Linux based fix. Based on Linux
commit originated from Rafael J. Wysocki, fixed by Lv Zheng.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
EDAC driver needs to look up attributes of NVDIMMs provided in SMBIOS.
Provide a function that looks up an acpi_nfit_memory_map from a device
handle (node/socket/mc/channel/dimm) and returns the SMBIOS handle.
Also pass back the "flags" so we can see if the NVDIMM is OK.
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Aristeu Rozanski <aris@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Erik Schmauss <erik.schmauss@intel.com>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: Robert Moore <robert.moore@intel.com>
Cc: devel@acpica.org
Cc: linux-acpi@vger.kernel.org
Cc: linux-nvdimm@lists.01.org
Link: http://lkml.kernel.org/r/20180312182430.10335-4-tony.luck@intel.com
Signed-off-by: Borislav Petkov <bp@suse.de>
ACPICA commit 6e3468837f9f32f64c7d0a6e20bf0d2579411d43
Version 20180209.
Link: https://github.com/acpica/acpica/commit/6e346883
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit a6c3c725c44dd44ad9d3f2b2a64351fdbe6e0014
For the kernel-resident ACPICA, optionally be silent about the
NOT_FOUND case. Although this is potentially a serious problem,
it can generate a lot of noise/errors on platforms whose
firmware carries around a bunch of unused Package objects.
To disable these errors, define ACPI_IGNORE_PACKAGE_RESOLUTION_ERRORS
in the OS-specific header.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=198167
Link: https://github.com/acpica/acpica/commit/a6c3c725
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 8faf6fca445eb7219963d80543fb802302a7a8c7
This change completes the integration of the recent changes to
package object handling with the module-level code support.
For acpi_exec, the -ep flag is removed.
This change allows table load to behave as if it were a method
invocation. Before this, the definition block definition below would
have loaded all named objects at the root scope. After loading, it
would execute the if statements at the root scope.
DefinitionBlock (...)
{
Name(OBJ1, 0)
if (1)
{
Device (DEV1)
{
Name (_HID,0x0)
}
}
Scope (DEV1)
{
Name (OBJ2)
}
}
The above code would load OBJ1 to the namespace, defer the execution
of the if statement and attempt to add OBJ2 within the scope of DEV1.
Since DEV1 is not in scope, this would incur an AE_NOT_FOUND error.
After this error is emitted, the if block is invoked and DEV1 and its
_HID is added to the namespace.
This commit changes the behavior to execute the if block in place
rather than deferring it until all tables are loaded. The new
behavior is as follows: insert OBJ1 in the namespace, invoke the if
statement and add DEV1 and its _HID to the namespace, add OBJ2 to the
scope of DEV1.
Bug report links:
Link: https://bugs.acpica.org/show_bug.cgi?id=963
Link: https://bugzilla.kernel.org/show_bug.cgi?id=153541
Link: https://bugzilla.kernel.org/show_bug.cgi?id=196165
Link: https://bugzilla.kernel.org/show_bug.cgi?id=192621
Link: https://bugzilla.kernel.org/show_bug.cgi?id=197207
Link: https://bugzilla.kernel.org/show_bug.cgi?id=198051
Link: https://bugzilla.kernel.org/show_bug.cgi?id=198515
ACPICA repo:
Link: https://github.com/acpica/acpica/commit/8faf6fca
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This is a patch that implements a generic hooking API for the
generic ACPI battery driver.
With this new generic API, drivers can expose platform specific
behaviour via sysfs attributes in /sys/class/power_supply/BATn/
in a generic way.
A perfect example of the need for this API are Lenovo ThinkPads.
Lenovo ThinkPads have a ACPI extension that allows the setting of
start and stop charge thresholds in the EC and battery firmware
via ACPI. The thinkpad_acpi module can use this API to expose
sysfs attributes that it controls inside the ACPI battery driver
sysfs tree, under /sys/class/power_supply/BATN/.
The file drivers/acpi/battery.h has been moved to
include/acpi/battery.h and the includes inside ac.c, sbs.c, and
battery.c have been adjusted to reflect that.
When drivers hooks into the API, the API calls add_battery() for
each battery in the system that passes it a acpi_battery
struct. Then, the drivers can use device_create_file() to create
new sysfs attributes with that struct and identify the batteries
for per-battery attributes.
Signed-off-by: Ognjen Galic <smclt30p@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Version 20180105.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
including tool signons.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Jung-uk Kim <jkim@free_BSD.org>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This is more easy to read.
Signed-off-by: Jung-uk Kim <jkim@free_BSD.org>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
We should not assume NULL is defined as "(void *)0" because NULL is
an implementation-defined macro. Especially, Clang 6 complains about
it, i.e., "arithmetic on a null pointer treated as a cast from integer
to pointer is a GNU extension".
Signed-off-by: Jung-uk Kim <jkim@free_BSD.org>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
X32 follows ILP32 model. Check for ILP32 as well when checking for
x86_64 to ensure the defines are correct for X32 ABI.
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* acpi-gpio:
gpio: merrifield: Add support of ACPI enabled platforms
ACPI: utils: Introduce acpi_dev_get_first_match_name()
* acpi-button:
ACPI: button: Add a LID switch blacklist and add 1 model to it
ACPI: button: Add a debug message when we're sending a LID event
* acpi-battery:
ACPI / battery: Add quirk for Asus GL502VSK and UX305LA
ACPI: battery: Drop redundant test for failure
* acpi-video:
ACPI / video: Default lcd_only to true on Win8-ready and newer machines
* acpica: (40 commits)
ACPICA: Update version to 20171215
ACPICA: trivial style fix, no functional change
ACPICA: Fix a couple memory leaks during package object resolution
ACPICA: Recognize the Windows 10 version 1607 and 1703 OSI strings
ACPICA: DT compiler: prevent error if optional field at the end of table is not present
ACPICA: Rename a global variable, no functional change
ACPICA: Create and deploy safe version of strncpy
ACPICA: Cleanup the global variables and update comments
ACPICA: Debugger: fix slight indentation issue
ACPICA: Fix a regression in the acpi_evaluate_object_type() interface
ACPICA: Update for a few debug output statements
ACPICA: Debug output, no functional change
ACPICA: Update information in MAINTAINERS
ACPICA: Rename variable to match upstream
ACPICA: Update version to 20171110
ACPICA: ACPI 6.2: Additional PPTT flags
ACPICA: Update linkage for get mutex name interface
ACPICA: Update mutex error messages, no functional change
ACPICA: Debugger: add "background" command for method execution
ACPICA: Small typo fix, no functional change
...
Sometimes the user wants to have device name of the match rather than
just checking if device present or not. To make life easier for such
users introduce acpi_dev_get_first_match_name() helper based on code
for acpi_dev_present().
For example, GPIO driver for Intel Merrifield needs to know the device
name of pin control to be able to apply GPIO mapping table to the proper
device.
To be more consistent with the purpose rename
struct acpi_dev_present_info -> struct acpi_dev_match_info
acpi_dev_present_cb() -> acpi_dev_match_cb()
in the utils.c file.
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 8b38d88e4a7151a7fc9451ac2e51c945c60b913b
Version 20171215.
Link: https://github.com/acpica/acpica/commit/8b38d88e
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 35a4a3ea723b3066f575e63e5f0116f7ce65e713
The public Microsoft document listing recognized OSI strings [1]
shows that these two strings were introduced.
version 1607 / Anniversary Update / "Redstone 1"
version 1703 / Creators Update / "Redstone 2"
[1] http://download.microsoft.com/download/7/e/7/7e7662cf-cbea-470b-a97e-ce7ce0d98dc2/winacpi_osi.docx
Link: https://github.com/acpica/acpica/commit/35a4a3ea
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit a7f73af9003bf4e730db5a133300c01ba7992a01
The data table compiler throws under the following conditions:
1.) there is a table with a last field that is optional
2.) if the optional field is not present
3.) the optional field is the last line of the data table
A change was made to dt_compile_table to return an AE_EOF under
these conditions. This AE_EOF means that we are at the end of the
file. The caller to dt_compile_table() is responsible for handling
this case. For DBG2 table, we will complete the compilation of this
subtable. For other tables, this could be different.
Link: https://github.com/acpica/acpica/commit/a7f73af9
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Andy Shevchenko
Erik Schmauss
Linus Torvalds
Rafael J. Wysocki
Bob Moore
Xiongfeng Wang
James Morse
Christoph Hellwig
Sinan Kaya
Jung-uk Kim
Borislav Petkov
Srinivas Pandruvada
Mika Westerberg
Dongjiu Geng
Brian Norris
Mario Limonciello
Robin Murphy
Alexandru Gagniuc
Sebastian Andrzej Siewior
Prashanth Prakash
John Garry
Joao Martins
Hans de Goede
Tony Luck
Ognjen Galic
Jung-uk Kim
Anuj Mittal