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2021-12-27ACPICA: Add support for PCC Opregion special context dataSudeep Holla1-0/+8
ACPICA commit 55526e8a6133cbf5a9cc0fb75a95dbbac6eb98e6 PCC Opregion added in ACPIC 6.3 requires special context data similar to GPIO and Generic Serial Bus as it needs to know the internal PCC buffer and its length as well as the PCC channel index when the opregion handler is being executed by the OSPM. Lets add support for the special context data needed by PCC Opregion. Link: https://github.com/acpica/acpica/commit/55526e8a Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-12-27ACPICA: Macros: Remove ACPI_PHYSADDR_TO_PTRJessica Clarke1-1/+0
ACPICA commit 52abebd410945ec55afb4dd8b7150e8a39b5c960 This macro was only ever used when stuffing pointers into physical addresses and trying to later reconstruct the pointer, which is implementation-defined as to whether that can be done. Now that all such operations are gone, the macro is unused, and should be removed to avoid such practices being reintroduced. Link: https://github.com/acpica/acpica/commit/52abebd4 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-12-27ACPICA: Use original data_table_region pointer for accessesJessica Clarke1-0/+4
ACPICA commit d9eb82bd7515989f0b29d79deeeb758db4d6529c Currently the pointer to the table is cast to acpi_physical_address and later cast back to a pointer to be dereferenced. Whether or not this is supported is implementation-defined. On CHERI, and thus Arm's experimental Morello prototype architecture, pointers are represented as capabilities, which are unforgeable bounded pointers, providing always-on fine-grained spatial memory safety. This means that any pointer cast to a plain integer will lose all its associated metadata, and when cast back to a pointer it will give a null-derived pointer (one that has the same metadata as null but an address equal to the integer) that will trap on any dereference. As a result, this is an implementation where acpi_physical_address cannot be used as a hack to store real pointers. Thus, add a new field to struct acpi_object_region to store the pointer for table regions, and propagate it to acpi_ex_data_table_space_handler via the region context, to use a more portable implementation that supports CHERI. Link: https://github.com/acpica/acpica/commit/d9eb82bd Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-12-27ACPICA: actypes.h: Expand the ACPI_ACCESS_ definitionsMark Langsdorf1-2/+8
ACPICA commit bc02c76d518135531483dfc276ed28b7ee632ce1 The current ACPI_ACCESS_*_WIDTH defines do not provide a way to test that size is small enough to not cause an overflow when applied to a 32-bit integer. Rather than adding more magic numbers, add ACPI_ACCESS_*_SHIFT, ACPI_ACCESS_*_MAX, and ACPI_ACCESS_*_DEFAULT #defines and redefine ACPI_ACCESS_*_WIDTH in terms of the new #defines. This was inititally reported on Linux where a size of 102 in ACPI_ACCESS_BIT_WIDTH caused an overflow error in the SPCR initialization code. Link: https://github.com/acpica/acpica/commit/bc02c76d Signed-off-by: Mark Langsdorf <mlangsdo@redhat.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-10-05ACPICA: Add support for Windows 2020 _OSI stringMario Limonciello1-0/+1
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: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-01-22ACPICA: Updated all copyrights to 2021Bob Moore1-1/+1
This affects all ACPICA source code modules. ACPICA commit c570953c914437e621dd5f160f26ddf352e0d2f4 Link: https://github.com/acpica/acpica/commit/c570953c Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-01-22ACPICA: fix -WfallthroughNick Desaulniers1-0/+6
ACPICA commit 4b9135f5774caa796ddf826448811e8e7f08ef2f GCC 7.1 gained -Wimplicit-fallthrough to warn on implicit fallthrough, as well as __attribute__((__fallthrough__)) and comments to explicitly denote that cases of fallthrough were intentional. Clang also supports this warning and statement attribute, but not the comment form. Robert Moore provides additional context about the lint comments being removed. They were for "an old version of PC-Lint, which we don't use anymore." Drop those. This will help us enable -Wimplicit-fallthrough throughout the Linux kernel. Suggested-by: Robert Moore <robert.moore@intel.com> Reported-by: Jon Hunter <jonathanh@nvidia.com> Link: https://github.com/acpica/acpica/commit/4b9135f5 Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-08ACPICA: Drop the repeated word "an" in a commentRandy Dunlap1-1/+1
ACPICA commit 9ed2c006444d1def55bc6f08164ed5d9e809c856 Link: https://github.com/acpica/acpica/commit/9ed2c006 Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-08-03Merge branches 'acpi-mm', 'acpi-tables', 'acpi-apei' and 'acpi-misc'Rafael J. Wysocki1-3/+9
* acpi-mm: ACPI: OSL: Clean up the removal of unused memory mappings ACPI: OSL: Use deferred unmapping in acpi_os_unmap_iomem() ACPI: OSL: Use deferred unmapping in acpi_os_unmap_generic_address() ACPICA: Preserve memory opregion mappings ACPI: OSL: Implement deferred unmapping of ACPI memory * acpi-tables: ACPI: NUMA: Remove the useless 'node >= MAX_NUMNODES' check ACPI: NUMA: Remove the useless sub table pointer check ACPI: tables: Remove the duplicated checks for acpi_parse_entries_array() ACPI: tables: avoid relocations for table signature array * acpi-apei: ACPI: APEI: remove redundant assignment to variable rc * acpi-misc: ACPI: Replace HTTP links with HTTPS ones ACPI: Use valid link to the ACPI specification ACPI: Use fallthrough pseudo-keyword
2020-07-27ACPICA: Replace one-element array with flexible-arrayGustavo A. R. Silva1-1/+1
ACPICA commit 7ba2f3d91a32f104765961fda0ed78b884ae193d The current codebase makes use of one-element arrays in the following form: struct something { int length; u8 data[1]; }; struct something *instance; instance = kmalloc(sizeof(*instance) + size, GFP_KERNEL); instance->length = size; memcpy(instance->data, source, size); but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the linux codebase from now on. This issue was found with the help of Coccinelle and audited _manually_. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Link: https://github.com/acpica/acpica/commit/7ba2f3d9 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-07-27ACPICA: Preserve memory opregion mappingsRafael J. Wysocki1-3/+9
The ACPICA's strategy with respect to the handling of memory mappings associated with memory operation regions is to avoid mapping the entire region at once which may be problematic at least in principle (for example, it may lead to conflicts with overlapping mappings having different attributes created by drivers). It may also be wasteful, because memory opregions on some systems take up vast chunks of address space while the fields in those regions actually accessed by AML are sparsely distributed. For this reason, a one-page "window" is mapped for a given opregion on the first memory access through it and if that "window" does not cover an address range accessed through that opregion subsequently, it is unmapped and a new "window" is mapped to replace it. Next, if the new "window" is not sufficient to acess memory through the opregion in question in the future, it will be replaced with yet another "window" and so on. That may lead to a suboptimal sequence of memory mapping and unmapping operations, for example if two fields in one opregion separated from each other by a sufficiently wide chunk of unused address space are accessed in an alternating pattern. The situation may still be suboptimal if the deferred unmapping introduced previously is supported by the OS layer. For instance, the alternating memory access pattern mentioned above may produce a relatively long list of mappings to release with substantial duplication among the entries in it, which could be avoided if acpi_ex_system_memory_space_handler() did not release the mapping used by it previously as soon as the current access was not covered by it. In order to improve that, modify acpi_ex_system_memory_space_handler() to preserve all of the memory mappings created by it until the memory regions associated with them go away. Accordingly, update acpi_ev_system_memory_region_setup() to unmap all memory associated with memory opregions that go away. Reported-by: Dan Williams <dan.j.williams@intel.com> Tested-by: Xiang Li <xiang.z.li@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-06-05ACPICA: iASL: add new OperationRegion subtype keyword PlatformRtMechanismErik Kaneda1-1/+2
ACPICA commit 2c2eefa827bd37297f5f9ca4b263fcba829aaf3f Link: https://github.com/acpica/acpica/commit/2c2eefa8 Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-02-13ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macroMika Westerberg1-1/+2
Sometimes it is useful to find the access_width field value in bytes and not in bits so add a helper that can be used for this purpose. Suggested-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Cc: 4.16+ <stable@vger.kernel.org> # 4.16+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-01-13ACPICA: All acpica: Update copyrights to 2020 Including tool signons.Bob Moore1-1/+1
ACPICA commit 8b9c69d0984067051ffbe8526f871448ead6a26b Link: https://github.com/acpica/acpica/commit/8b9c69d0 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21ACPICA: Add "Windows 2019" string to _OSI support.Jung-uk Kim1-0/+1
ACPICA commit 32fffb242800b0202986e86d9b0e16f88a23de66 Link: https://github.com/acpica/acpica/commit/32fffb24 Signed-off-by: Jung-uk Kim <jkim@free_BSD.org> 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>
2019-08-21ACPICA: Differentiate Windows 8.1 from Windows 8.Jung-uk Kim1-6/+7
ACPICA commit 66db7b38f61e63f11e48a0ea993d92b12e0a17ca Link: https://github.com/acpica/acpica/commit/66db7b38 Signed-off-by: Jung-uk Kim <jkim@free_BSD.org> 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>
2019-08-21ACPICA: Macros: remove pointer math on a null pointerBob Moore1-1/+1
ACPICA commit 02bbca5070e42d298c9b824300aa0eb8a082d797 Causes warnings on some compilers and/or tools. Changed ACPI_TO_POINTER to use ACPI_CAST_PTR instead of using arithmetic. Link: https://github.com/acpica/acpica/commit/02bbca50 Reported-by: Qian Cai <cai@lca.pw> 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>
2019-08-21ACPICA: Increase total number of possible Owner IDsBob Moore1-2/+2
ACPICA commit 1f1652dad88b9d767767bc1f7eb4f7d99e6b5324 From 255 to 4095 possible IDs. Link: https://github.com/acpica/acpica/commit/1f1652da Reported-by: Hedi Berriche <hedi.berriche @hpe.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>
2019-04-09ACPICA: Rename nameseg length macro/define for clarityBob Moore1-4/+4
ACPICA commit 24870bd9e73d71e2a1ff0a1e94519f8f8409e57d ACPI_NAME_SIZE changed to ACPI_NAMESEG_SIZE This clarifies that this is the length of an individual nameseg, not the length of a generic namestring/namepath. Improves understanding of the code. Link: https://github.com/acpica/acpica/commit/24870bd9 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>
2019-04-09ACPICA: Rename nameseg compare macro for clarityBob Moore1-2/+2
ACPICA commit 92ec0935f27e217dff0b176fca02c2ec3d782bb5 ACPI_COMPARE_NAME changed to ACPI_COMPARE_NAMESEG This clarifies (1) this is a compare on 4-byte namesegs, not a generic compare. Improves understanding of the code. Link: https://github.com/acpica/acpica/commit/92ec0935 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>
2019-04-09ACPICA: Rename nameseg copy macro for clarityBob Moore1-2/+2
ACPICA commit 19c18d3157945d1b8b64a826f0a8e848b7dbb127 ACPI_MOVE_NAME changed to ACPI_COPY_NAMESEG This clarifies (1) this is a copy operation, and (2) it operates on ACPI name_segs. Improves understanding of the code. Link: https://github.com/acpica/acpica/commit/19c18d31 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>
2019-02-24ACPICA: ACPI 6.3: add Error Disconnect Recover Notification valueErik Schmauss1-1/+2
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>
2019-02-07ACPICA: Get rid of acpi_sleep_dispatch()Christoph Hellwig1-9/+0
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>
2019-01-15ACPICA: All acpica: Update copyrights to 2019Bob Moore1-1/+1
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>
2018-12-13ACPICA: disassembler: disassemble OEMx tables as AMLErik Schmauss1-0/+4
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-12-13ACPICA: Add "Windows 2018.2" string in the _OSI supportJung-uk Kim1-0/+1
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>
2018-12-13ACPICA: Add "Windows 2018" string in the _OSI supportBob Moore1-0/+1
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>
2018-06-10ACPICA: Recognize the _OSI string "Windows 2017.2"Mario Limonciello1-0/+1
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>
2018-05-10ACPICA: provide abstraction for raw_spinlock_tSebastian Andrzej Siewior1-0/+4
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>
2018-03-18ACPICA: Cleanup/simplify module-level code supportBob Moore1-10/+10
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>
2018-03-18ACPICA: adding SPDX headersErik Schmauss1-36/+2
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-03-18ACPICA: Remove calling of _STA from acpi_get_object_info()Hans de Goede1-2/+0
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>
2018-03-18ACPICA: Events: Dispatch GPEs after enabling for the first timeErik Schmauss1-0/+1
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>
2018-02-06ACPICA: All acpica: Update copyrights to 2018Bob Moore1-1/+1
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>
2018-02-04ACPICA: Add a missing pair of parenthesesJung-uk Kim1-1/+1
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>
2018-02-04ACPICA: Prefer ACPI_TO_POINTER() over ACPI_ADD_PTR()Jung-uk Kim1-1/+1
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>
2018-02-04ACPICA: Avoid NULL pointer arithmeticJung-uk Kim1-4/+4
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>
2018-01-05ACPICA: Recognize the Windows 10 version 1607 and 1703 OSI stringsMario Limonciello1-0/+2
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>
2017-11-27ACPICA: Dispatcher: Introduce timeout mechanism for infinite loop detectionLv Zheng1-0/+2
ACPICA commit 9605023e7e6d1f05581502766c8cf2905bcc03d9 This patch implements a new infinite loop detection mechanism to replace the old one, it uses acpi_os_get_timer() to limit loop execution into a determined time slice. This is useful in case some hardware/firmware operations really require the AML interpreter to wait while the old mechanism could expire too fast on recent machines. The new mechanism converts old acpi_gbl_max_loop_iterations to store the user configurable value for the new mechanism in order to allow users to be still able to configure this value for acpiexec via command line. This patch also removes wrong initilization code of acpi_gbl_max_loop_iterations accordingly (it should have been initialized by ACPI_INIT_GLOBAL, and the default value is also properly tuned for acpiexec). Reported by M. Foronda, fixed by Lv Zheng. Link: https://github.com/acpica/acpica/commit/9605023e Link: https://bugzilla.kernel.org/show_bug.cgi?id=156501 Reported-by: M. Foronda <josemauricioforonda@gmail.com> Signed-off-by: Lv Zheng <lv.zheng@intel.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>
2017-09-03Merge branches 'acpi-scan' and 'acpi-pm'Rafael J. Wysocki1-1/+2
* acpi-scan: ACPI / scan: Enable GPEs before scanning the namespace ACPICA: Make it possible to enable runtime GPEs earlier ACPICA: Dispatch active GPEs at init time * acpi-pm: ACPI / PM: Add debug statements to acpi_pm_notify_handler() ACPI: Add debug statements to acpi_global_event_handler() ACPI / sleep: Make acpi_sleep_syscore_init() static ACPI / PCI / PM: Rework acpi_pci_propagate_wakeup() ACPI / PM: Split acpi_device_wakeup() PCI / PM: Skip bridges in pci_enable_wake()
2017-08-17ACPICA: Make it possible to enable runtime GPEs earlierRafael J. Wysocki1-1/+2
Runtime GPEs have corresponding _Lxx/_Exx methods and are enabled automatically during the initialization of the ACPI subsystem through acpi_update_all_gpes() with the assumption that acpi_setup_gpe_for_wake() will be called in advance for all of the GPEs pointed to by _PRW objects in the namespace that may be affected by acpi_update_all_gpes(). That is, acpi_ev_initialize_gpe_block() can only be called for a GPE block after acpi_setup_gpe_for_wake() has been called for all of the _PRW (wakeup) GPEs in it. The platform firmware on some systems, however, expects GPEs to be enabled before the enumeration of devices which is when acpi_setup_gpe_for_wake() is called and that goes against the above assumption. For this reason, introduce a new flag to be set by acpi_ev_initialize_gpe_block() when automatically enabling a GPE to indicate to acpi_setup_gpe_for_wake() that it needs to drop the reference to the GPE coming from acpi_ev_initialize_gpe_block() and modify acpi_setup_gpe_for_wake() accordingly. These changes allow acpi_setup_gpe_for_wake() and acpi_ev_initialize_gpe_block() to be invoked in any order. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2017-08-03ACPICA: CLib: Add short multiply/shift supportLv Zheng1-0/+1
ACPICA commit 01b8f5a2350b9cc329cd8402ac8faec36fc501f5 In order to build ACPICA EFI tools with EDK-II on Windows, 64-bit multiply/shift supports are also required to be implemented. Otherwise, MSVC complains: acpidump.lib(utstrtoul64.obj) : error LNK2001: unresolved external symbol __allmul acpidump.lib(uthex.obj) : error LNK2001: unresolved external symbol __aullshr Note: 1. This patch also splits _EDK2_EFI from _GNU_EFI as they might have different math64 supports. 2. Support of gcc math64 is not included in this patch. 3. Support of EDK2 arch independent math64 is done via linking to base_lib. This patch fixes this issue. Reported by Shao Ming, fixed by Lv Zheng. For Linux kernel, this patch is a functional no-op. Link: https://github.com/acpica/acpica/commit/01b8f5a2 Tested-by: "Shao, Ming" <smbest163@163.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-08-03ACPICA: Divergences: reduce access size definitionsLv Zheng1-0/+7
ACPICA commit cf27b3c98883d2a15d932016792fcb8272ace96d The following commit introduces definition of access width to ACPICA. Commit: 2bece49394872d36bbc5767fd643deac05920c55 Subject: ACPI: SPCR: Use access width to determine mmio usage Actually the access bit width can be calculated via access width. It would be better to define a macro calculating bit width rather than defining fixed values. This patch thus cleans up the definitions to reduce divergences. Link: https://github.com/acpica/acpica/commit/cf27b3c9 Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27ACPICA: Comment update: spelling/format. No functional changeBob Moore1-30/+34
ACPICA commit d9861dae21b41d48745496bac2665f14e4e28c08 Fix some spelling errors and reformat some long lines. Link: https://github.com/acpica/acpica/commit/d9861dae Reported-by: Cao Jin <caoj.fnst@cn.fujitsu.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-12ACPICA: Add new notify value for memory attributes updateBob Moore1-1/+2
ACPICA commit d37e878292bc9c7835b74e90d1c4c79e96ce6652 New notify value for memory attributes update for ACPI 6.2. Link: https://github.com/acpica/acpica/commit/d37e8782 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-09ACPICA: Source tree: Update copyright notices to 2017Bob Moore1-1/+1
ACPICA commit 16577e5265923f4999b4d2c0addb2343b18135e1 Affects all files. Link: https://github.com/acpica/acpica/commit/16577e52 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-09-10ACPICA: Tables: Add new table events indicating table installation/uninstallationLv Zheng1-1/+3
ACPICA commit ed6a5fbc694f3a27d93014391aa9a6f6fe490461 This patch adds 2 new table events to indicate table installation/uninstallation. Currently, as ACPICA never uninstalls tables, this patch thus only adds table handler invocation for the table installation event. Lv Zheng. The 2 events are to be used to fix a sysfs table handling issue related to LoadTable opcode (see Link # [1] below). The actual sysfs fixing code is not included, the sysfs fixes will be sent as separate patches. Link: https://bugzilla.kernel.org/show_bug.cgi?id=150841 # [1] Link: https://github.com/acpica/acpica/commit/ed6a5fbc Reported-by: Jason Voelz <jason.voelz@intel.com> Reported-by: Francisco Leoner <francisco.j.lenoer.soto@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-09-10ACPICA: Tables: Remove wrong table event macrosLv Zheng1-9/+5
ACPICA commit fcc129d04f865161f308d3b8743496cc3f4d233e There are wrong table event macros, this patch cleans them up. Link: https://bugs.acpica.org/show_bug.cgi?id=1321 Link: https://github.com/acpica/acpica/commit/fcc129d0 Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-08-13ACPICA: Clib: Eliminate acpi_os_XXXFile()/acpi_log_error and link clibrary fxxx()/errno/perror() insteadLv Zheng1-9/+0
ACPICA commit 189429fb7d06cdb89043ae32d615faf553467f1d This patch follows new ACPICA design, eliminates old portable OSLs, and implements fopen/fread/fwrite/fclose/fseek/ftell for GNU EFI environment. This patch also eliminates acpi_log_error(), convering them into fprintf(stderr)/perror(). Lv Zheng. Link: https://github.com/acpica/acpica/commit/189429fb Link: https://bugs.acpica.org/show_bug.cgi?id=1302 Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-08-13ACPICA: Events: Introduce acpi_mask_gpe() to implement GPE masking mechanismLv Zheng1-18/+21
ACPICA commit 23a417ca406a527e7ae1710893e59a8b6db30e14 There is a facility in Linux, developers can control the enabling/disabling of a GPE via /sys/firmware/acpi/interrupts/gpexx. This is mainly for debugging purposes. But many users expect to use this facility to implement quirks to mask a specific GPE when there is a gap in Linux causing this GPE to flood. This is not working correctly because currently this facility invokes enabling/disabling counting based GPE driver APIs: acpi_enable_gpe()/acpi_disable_gpe() and the GPE drivers can still affect the count to mess up the GPE masking purposes. However, most of the IRQ chip designs allow masking/unmasking IRQs via a masking bit which is different from the enabled bit to achieve the same purpose. But the GPE hardware doesn't contain such a feature, this brings the trouble. In this patch, we introduce a software mechanism to implement the GPE masking feature, and acpi_mask_gpe() are provided to the OSPMs to mask/unmask GPEs in the above mentioned situation instead of acpi_enable_gpe()/acpi_disable_gpe(). ACPICA BZ 1102. Lv Zheng. Link: https://github.com/acpica/acpica/commit/23a417ca Link: https://bugs.acpica.org/show_bug.cgi?id=1102 Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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