- Nov 05, 2021
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Rafael J. Wysocki authored
The ACPI_USE_BUILTIN_STDARG symbol is never set in the kernel build, so stop checking it in include/acpi/platform/acgcc.h and drop all of the macros depending on it (which appear to duplicate the analogous macros from linux/stdarg.h, but in fact are never used). Link: https://lore.kernel.org/linux-acpi/CAHk-=whCammRsz8PEbrft3M6vGjF506gkxtyGw81uGOUUvD51g@mail.gmail.com/ Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by:
Linus Torvalds <torvalds@linuxfoundation.org>
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- Nov 03, 2021
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Sakari Ailus authored
Store a device's desired enumeration power state in struct acpi_device_power during acpi_device object's initialisation. Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
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- Oct 30, 2021
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Sudeep Holla authored
Now that we have all the shared memory region information populated in the pcc_mbox_chan, let us propagate the pointer to the same as the return value to pcc_mbox_request channel. This eliminates the need for the individual users of PCC mailbox to parse the PCCT subspace entries and fetch the shmem information. This also eliminates the need for PCC mailbox controller to set con_priv to PCCT subspace entries. This is required as con_priv is private to the controller driver to attach private data associated with the channel and not meant to be used by the mailbox client/users. Let us convert all the users of pcc_mbox_{request,free}_channel to use new interface. Cc: Jean Delvare <jdelvare@suse.com> Signed-off-by:Sudeep Holla <sudeep.holla@arm.com> Acked-by:
Wolfram Sang <wsa@kernel.org> Acked-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Jassi Brar <jaswinder.singh@linaro.org>
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Sudeep Holla authored
Currently PCC mailbox controller sets con_priv in each channel to hold the pointer to pcct subspace entry it corresponds to. The mailbox user will then fetch this pointer from the channel descriptor they get when they request for the channel. Using that pointer they then parse the pcct entry again to fetch all the information about shared memory region. In order to remove individual users of PCC mailbox parsing the PCCT subspace entries to fetch same information, let us consolidate the same in pcc mailbox controller by parsing all the shared memory region information into a structure that can also hold the mbox_chan pointer it represent. This can then be used as main PCC mailbox channel pointer that we can return as part of pcc_mbox_request_channel instead of standard mailbox channel pointer. Reviewed-by:
Cristian Marussi <cristian.marussi@arm.com> Signed-off-by:
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- Oct 27, 2021
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Christoph Hellwig authored
apei_hest_parse() is only used in hest.c, so mark it static. Signed-off-by:
Christoph Hellwig <hch@lst.de> [ rjw: Minor subject and changelog edits ] Signed-off-by:
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- Oct 07, 2021
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Miguel Bernal Marin authored
When ACPI tools are compiled, the following error is showed: $ cd tools/power/acpi $ make DESCEND tools/acpidbg MKDIR include CP include CC tools/acpidbg/acpidbg.o In file included from /home/linux/tools/power/acpi/include/acpi/platform/acenv.h:152, from /home/linux/tools/power/acpi/include/acpi/acpi.h:22, from acpidbg.c:9: /home/linux/tools/power/acpi/include/acpi/platform/acgcc.h:25:10: fatal error: linux/stdarg.h: No such file or directory 29 | #include <linux/stdarg.h> | ^~~~~~~~~~~~~~~~ compilation terminated. Use the ACPICA logic: just identify when it is used inside the kernel or by an ACPI tool. Fixes: c0891ac1 ("isystem: ship and use stdarg.h") Signed-off-by:Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com> [ rjw: Changelog edits ] Signed-off-by:
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- Oct 05, 2021
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Bob Moore authored
ACPICA commit e01cc6b3d12b5f73f44d46fa15a7f569c793b328 Version 20210930. Link: https://github.com/acpica/acpica/commit/e01cc6b3 Signed-off-by:
Bob Moore <robert.moore@intel.com> Signed-off-by:
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Bob Moore authored
ACPICA commit 94abe858583de24a425b37cb8e62d56c65c4f3cf Note: support for Vendor-defined microphone arrays and SNR extensions are not supported at this time -- mostly due to a lack of example tables. Actual compiler support for NHLT is forthcoming. Link: https://github.com/acpica/acpica/commit/94abe858 Signed-off-by:
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Alison Schofield authored
ACPICA commit 777e11b73e60f0eb606cf20142ef634702b09ba1 Add a new subtable type for SRAT Generic Port Affinity. It uses the same subtable structure as the existing Generic Initiator Affinity type. Link: https://github.com/acpica/acpica/commit/777e11b7 Signed-off-by:
Alison Schofield <alison.schofield@intel.com> Signed-off-by:
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Mario Limonciello authored
ACPICA commit 2dc55de56d2deac30af0b484dd1d65607eb33a9c Link: https://github.com/microsoft_docs/windows-driver-docs/commit/5164e24985e78ef4870d7a5801a5336104f36366 Link: https://github.com/acpica/acpica/commit/2dc55de5 Signed-off-by:
Mario Limonciello <mario.limonciello@amd.com> Signed-off-by:
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- Sep 27, 2021
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Rafael J. Wysocki authored
Since PCI was the only user of the ->cleanup callback in struct acpi_bus_type and it is not using struct acpi_bus_type any more, drop that callback from there and update acpi_device_notify_remove() accordingly. Signed-off-by:
Ferry Toth <fntoth@gmail.com>
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- Sep 23, 2021
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Jia He authored
This reverts commit 437b38c5. The memory semantics added in commit 437b38c5 causes SystemMemory Operation region, whose address range is not described in the EFI memory map to be mapped as NormalNC memory on arm64 platforms (through acpi_os_map_memory() in acpi_ex_system_memory_space_handler()). This triggers the following abort on an ARM64 Ampere eMAG machine, because presumably the physical address range area backing the Opregion does not support NormalNC memory attributes driven on the bus. Internal error: synchronous external abort: 96000410 [#1] SMP Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.14.0+ #462 Hardware name: MiTAC RAPTOR EV-883832-X3-0001/RAPTOR, BIOS 0.14 02/22/2019 pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [...snip...] Call trace: acpi_ex_system_memory_space_handler+0x26c/0x2c8 acpi_ev_address_space_dispatch+0x228/0x2c4 acpi_ex_access_region+0x114/0x268 acpi_ex_field_datum_io+0x128/0x1b8 acpi_ex_extract_from_field+0x14c/0x2ac acpi_ex_read_data_from_field+0x190/0x1b8 acpi_ex_resolve_node_to_value+0x1ec/0x288 acpi_ex_resolve_to_value+0x250/0x274 acpi_ds_evaluate_name_path+0xac/0x124 acpi_ds_exec_end_op+0x90/0x410 acpi_ps_parse_loop+0x4ac/0x5d8 acpi_ps_parse_aml+0xe0/0x2c8 acpi_ps_execute_method+0x19c/0x1ac acpi_ns_evaluate+0x1f8/0x26c acpi_ns_init_one_device+0x104/0x140 acpi_ns_walk_namespace+0x158/0x1d0 acpi_ns_initialize_devices+0x194/0x218 acpi_initialize_objects+0x48/0x50 acpi_init+0xe0/0x498 If the Opregion address range is not present in the EFI memory map there is no way for us to determine the memory attributes to use to map it - defaulting to NormalNC does not work (and it is not correct on a memory region that may have read side-effects) and therefore commit 437b38c5 should be reverted, which means reverting back to the original behavior whereby address ranges that are mapped using acpi_os_map_memory() default to the safe devicenGnRnE attributes on ARM64 if the mapped address range is not defined in the EFI memory map. Fixes: 437b38c5 ("ACPI: Add memory semantics to acpi_os_map_memory()") Signed-off-by:
Jia He <justin.he@arm.com> Acked-by:
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
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- Sep 13, 2021
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Mario Limonciello authored
The online enabled bit on newer ACPI implmentations will indicate whether the CPU is hotpluggable. Link: http://github.com/acpica/acpica/pull/708/ Signed-off-by:
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- Sep 07, 2021
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Rafael J. Wysocki authored
On some systems the nominal_perf value retrieved via CPPC is just a constant and fetching it doesn't require accessing any registers, so if it is the only CPPC capability that's needed, it is wasteful to run cppc_get_perf_caps() in order to get just that value alone, especially when this is done for CPUs other than the one running the code. For this reason, introduce cppc_get_nominal_perf() allowing nominal_perf to be obtained individually, by generalizing the existing cppc_get_desired_perf() (and renaming it) so it can be used to retrieve any specific CPPC capability value. While at it, clean up the cppc_get_desired_perf() kerneldoc comment a bit. Signed-off-by:
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- Aug 25, 2021
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Lorenzo Pieralisi authored
The memory attributes attached to memory regions depend on architecture specific mappings. For some memory regions, the attributes specified by firmware (eg uncached) are not sufficient to determine how a memory region should be mapped by an OS (for instance a region that is define as uncached in firmware can be mapped as Normal or Device memory on arm64) and therefore the OS must be given control on how to map the region to match the expected mapping behaviour (eg if a mapping is requested with memory semantics, it must allow unaligned accesses). Rework acpi_os_map_memory() and acpi_os_ioremap() back-end to split them into two separate code paths: acpi_os_memmap() -> memory semantics acpi_os_ioremap() -> MMIO semantics The split allows the architectural implementation back-ends to detect the default memory attributes required by the mapping in question (ie the mapping API defines the semantics memory vs MMIO) and map the memory accordingly. Link: https://lore.kernel.org/linux-arm-kernel/31ffe8fc-f5ee-2858-26c5-0fd8bdd68702@arm.com Tested-by:
Hanjun Guo <guohanjun@huawei.com> Signed-off-by:
Ard Biesheuvel <ardb@kernel.org> Acked-by:
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- Aug 19, 2021
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Alexey Dobriyan authored
Ship minimal stdarg.h (1 type, 4 macros) as <linux/stdarg.h>. stdarg.h is the only userspace header commonly used in the kernel. GPL 2 version of <stdarg.h> can be extracted from http://archive.debian.org/debian/pool/main/g/gcc-4.2/gcc-4.2_4.2.4.orig.tar.gz Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Acked-by:
Masahiro Yamada <masahiroy@kernel.org>
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- Aug 16, 2021
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Bob Moore authored
Version 20210730. ACPICA commit 2195f614e79442beb4d24d7a29a6347493e444e5 Link: https://github.com/acpica/acpica/commit/2195f614 Signed-off-by:
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Bob Moore authored
ACPICA commit 5acc6818c537888be147d9da6b280a0b8c241a1d Link: https://github.com/acpica/acpica/commit/5acc6818 Signed-off-by:
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Bob Moore authored
Handle the case where the Command-line Arguments table field does not exist. ACPICA commit d6487164497fda170a1b1453c5d58f2be7c873d6 Link: https://github.com/acpica/acpica/commit/d6487164 Signed-off-by:
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Marcin Wojtas authored
The Microsoft Debug Port Table 2 (DBG2) specification revision September 21, 2020 comprises additional Serial Port Subtypes [1]. Reflect that in the actbl1.h header file. [1] https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/acpi-debug-port-table ACPICA commit d95c7d206b5836c7770e8e9cd613859887fded8f Link: https://github.com/acpica/acpica/commit/d95c7d20 Signed-off-by:
Marcin Wojtas <mw@semihalf.com> Signed-off-by:
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Bob Moore authored
ACPICA commit 8d49c0b2b78b8a8c5dae4d5ff28432729f4d59f2 Link: https://github.com/acpica/acpica/commit/8d49c0b2 Signed-off-by:
Huilong Deng <denghuilong@cdjrlc.com> Signed-off-by:
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Bob Moore authored
Includes support in the table compiler and the disassembler. ACPICA commit e75074d84d1207339a048486c2d06ecb935d0092 Link: https://github.com/acpica/acpica/commit/e75074d8 Signed-off-by:
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- Jul 24, 2021
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Linus Torvalds authored
Commit 71f64283 ("ACPI: utils: Fix reference counting in for_each_acpi_dev_match()") started doing "acpi_dev_put()" on a pointer that was possibly NULL. That fails miserably, because that helper inline function is not set up to handle that case. Just make acpi_dev_put() silently accept a NULL pointer, rather than calling down to put_device() with an invalid offset off that NULL pointer. Link: https://lore.kernel.org/lkml/a607c149-6bf6-0fd0-0e31-100378504da2@kernel.dk/ Reported-and-tested-by:
Jens Axboe <axboe@kernel.dk> Tested-by:
Daniel Scally <djrscally@gmail.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- Jul 19, 2021
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Andy Shevchenko authored
Currently it's possible to iterate over the dangling pointer in case the device suddenly disappears. This may happen becase callers put it at the end of a loop. Instead, let's move that call inside acpi_dev_get_next_match_dev(). Fixes: 803abec6 ("media: ipu3-cio2: Add cio2-bridge to ipu3-cio2 driver") Fixes: bf263f64 ("media: ACPI / bus: Add acpi_dev_get_next_match_dev() and helper macro") Fixes: edbd1bc4 ("efi/dev-path-parser: Switch to use for_each_acpi_dev_match()") Signed-off-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by:
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- Jun 25, 2021
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Jean-Philippe Brucker authored
Extract the code that sets up the IOMMU infrastructure from IORT, since it can be reused by VIOT. Move it one level up into a new acpi_iommu_configure_id() function, which calls the IORT parsing function which in turn calls the acpi_iommu_fwspec_init() helper. Signed-off-by:
Jean-Philippe Brucker <jean-philippe@linaro.org> Reviewed-by:
Eric Auger <eric.auger@redhat.com> Reviewed-by:
Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/20210618152059.1194210-3-jean-philippe@linaro.org Signed-off-by:
Joerg Roedel <jroedel@suse.de>
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- Jun 17, 2021
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Rafael J. Wysocki authored
Since acpi_bus_put_acpi_device() is a synonym for acpi_dev_put(), define it as static inline in analogy with the latter. No functional impact. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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- Jun 10, 2021
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Erik Kaneda authored
ACPICA commit bd46cb07e614fd85ea69e54c1f6f0ae0a5fb20ab This structure is used in to parse PRMT in other Operating Systems that relies on using subtable headers in order to parse ACPI tables. Although the PRMT doesn't have "subtables" it has a list of module information structures that act as subtables. Link: https://github.com/acpica/acpica/commit/bd46cb07 Signed-off-by:
Erik Kaneda <erik.kaneda@intel.com> Signed-off-by:
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- Jun 07, 2021
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Daniel Scally authored
In some ACPI tables we encounter, devices use the _DEP method to assert a dependence on other ACPI devices as opposed to the OpRegions that the specification intends. We need to be able to find those devices "from" the dependee, so add a callback and a wrapper to walk over the acpi_dep_list and return the dependent ACPI device. Reviewed-by:
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Daniel Scally authored
The acpi_walk_dep_device_list() function is not as generic as its name implies, serving only to decrement the dependency count for each dependent device of the input. Extend it to accept a callback which can be applied to all the dependencies in acpi_dep_list. Replace all existing calls to the function with calls to a wrapper, passing a callback that applies the same dependency reduction. Reviewed-by:
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Christophe JAILLET authored
Fix a typo in comment related to the closing #endif of an include-guard. s/__ACP_NUMA_H/__ACPI_NUMA_H/ Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
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Andy Shevchenko authored
Constify arguments to acpi_dma_supported(). The function doesn't need to change the content of the passed argument and when it's const it allows to supply the result of other functions that may return a pointer to a constant object. Signed-off-by:
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Bob Moore authored
ACPICA commit ffceba1df23f8dbbc64a1023314ec179b4f5331e Version 20210604. Link: https://github.com/acpica/acpica/commit/ffceba1d Signed-off-by:
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Alison Schofield authored
ACPICA commit 699fc72e56936bebf3b9ba39b6e91bd957b44452 The CXL Fixed Memory Window Structure (CFMWS) is added to the CXL Early Discovery Table (CEDT). This new structure is defined in an ECN to the CXL 2.0 specification. https://www.computeexpresslink.org/spec-landing Link: https://github.com/acpica/acpica/commit/699fc72e Signed-off-by:
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Erik Kaneda authored
ACPICA commit cdf48b141d7da38e47fe4020310033ddd1971f9e Writing a buffer to a PlatformRtMechanism FieldUnit invokes a bidirectional transaction. The input buffer contains 26 bytes containing 9 bytes of status, a command byte and a 16-byte UUID. This change will will simply pass this incoming buffer to a handler registered by the OS. Link: https://github.com/acpica/acpica/commit/cdf48b14 Signed-off-by:
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Alison Schofield authored
ACPICA commit 5ace82441a34f8d45725f12f6bd2677e79c186a6 CXL 2.0 defines length and version field values for the CHBS. Include them in the ACPI CEDT table definition. Link: https://github.com/acpica/acpica/commit/5ace8244 Signed-off-by:
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Erik Kaneda authored
ACPICA commit f70e7593e37c9e29f19be8ad3ef93f3f34799368 Link: https://github.com/acpica/acpica/commit/f70e7593 Signed-off-by:
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Bob Moore authored
ACPICA commit 81eb9c383e6dee0f1b6620e91e5c3dbb48234831 Includes: Table compiler, disassembler, and template generator. Link: https://github.com/acpica/acpica/commit/81eb9c38 Signed-off-by:
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Fabian Wüthrich authored
ACPICA commit 1d36b551fa6749e650da1dfd3e809146e6ac6a2e The ACPI specification v6.3 defines the panel positions in chapter 6.1.8 "_PLD (Physical Location of Device)" Link: https://github.com/acpica/acpica/commit/1d36b551 Signed-off-by:
Fabian Wüthrich <me@fabwu.ch> Reviewed-by:
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Bob Moore authored
ACPICA commit 6949e1dd2d92788a994ce657857fe8809159e71e Includes compiler, disassembler, and template generator. Link: https://github.com/acpica/acpica/commit/6949e1dd Signed-off-by:
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Bob Moore authored
Includes the table compiler, the disassembler and the template generator. ACPICA commit 27a434379e3ecafea5340c0c384789ea2062c4fb Link: https://github.com/acpica/acpica/commit/27a43437 Signed-off-by:
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