Linux Kernel https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v5.15.2 2021-10-07T17:18:19Z 2021-10-07T17:18:19Z Miguel Bernal Marin miguel.bernal.marin@linux.intel.com 2021-10-06T05:13:18Z urn:sha1:136f282028dae7d9dd68469b197aa2b36b410992 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: c0891ac15f04 ("isystem: ship and use stdarg.h") Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com> [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2021-09-23T18:39:36Z Jia He justin.he@arm.com 2021-09-23T03:35:57Z urn:sha1:12064c1768439fa0882547010afae6b52aafa7af This reverts commit 437b38c51162f8b87beb28a833c4d5dc85fa864e. The memory semantics added in commit 437b38c51162 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 437b38c51162 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: 437b38c51162 ("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: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2021-09-10T18:26:08Z Rafael J. Wysocki rafael.j.wysocki@intel.com 2021-09-10T18:26:08Z urn:sha1:be2d24336f8876d60d8a4634f1a1e4753c4be124 * pm-cpufreq: cpufreq: intel_pstate: hybrid: Rework HWP calibration ACPI: CPPC: Introduce cppc_get_nominal_perf() * pm-sleep: PM: sleep: core: Avoid setting power.must_resume to false PM: sleep: wakeirq: drop useless parameter from dev_pm_attach_wake_irq() * pm-em: Documentation: power: include kernel-doc in Energy Model doc PM: EM: fix kernel-doc comments 2021-09-07T19:15:16Z Rafael J. Wysocki rafael.j.wysocki@intel.com 2021-09-04T13:51:45Z urn:sha1:0654cf05d17bc4d296a53a8bc7d107bc8a795f2e 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: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2021-09-03T22:33:47Z Linus Torvalds torvalds@linux-foundation.org 2021-09-03T22:33:47Z urn:sha1:b250e6d141ce4f0d0ada60e4b5db577050e5feb0 Pull Kbuild updates from Masahiro Yamada: - Add -s option (strict mode) to merge_config.sh to make it fail when any symbol is redefined. - Show a warning if a different compiler is used for building external modules. - Infer --target from ARCH for CC=clang to let you cross-compile the kernel without CROSS_COMPILE. - Make the integrated assembler default (LLVM_IAS=1) for CC=clang. - Add <linux/stdarg.h> to the kernel source instead of borrowing <stdarg.h> from the compiler. - Add Nick Desaulniers as a Kbuild reviewer. - Drop stale cc-option tests. - Fix the combination of CONFIG_TRIM_UNUSED_KSYMS and CONFIG_LTO_CLANG to handle symbols in inline assembly. - Show a warning if 'FORCE' is missing for if_changed rules. - Various cleanups * tag 'kbuild-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (39 commits) kbuild: redo fake deps at include/ksym/*.h kbuild: clean up objtool_args slightly modpost: get the *.mod file path more simply checkkconfigsymbols.py: Fix the '--ignore' option kbuild: merge vmlinux_link() between ARCH=um and other architectures kbuild: do not remove 'linux' link in scripts/link-vmlinux.sh kbuild: merge vmlinux_link() between the ordinary link and Clang LTO kbuild: remove stale *.symversions kbuild: remove unused quiet_cmd_update_lto_symversions gen_compile_commands: extract compiler command from a series of commands x86: remove cc-option-yn test for -mtune= arc: replace cc-option-yn uses with cc-option s390: replace cc-option-yn uses with cc-option ia64: move core-y in arch/ia64/Makefile to arch/ia64/Kbuild sparc: move the install rule to arch/sparc/Makefile security: remove unneeded subdir-$(CONFIG_...) kbuild: sh: remove unused install script kbuild: Fix 'no symbols' warning when CONFIG_TRIM_UNUSD_KSYMS=y kbuild: Switch to 'f' variants of integrated assembler flag kbuild: Shuffle blank line to improve comment meaning ... 2021-08-30T18:03:28Z Rafael J. Wysocki rafael.j.wysocki@intel.com 2021-08-30T18:03:28Z urn:sha1:2cbd40709a9d44b8b0d418589de12efad6f71c15 * acpi-osl: ACPI: Add memory semantics to acpi_os_map_memory() * acpi-power: ACPI: power: Drop name from struct acpi_power_resource ACPI: power: Use acpi_handle_debug() to print debug messages * acpi-misc: ACPI: button: Add DMI quirk for Lenovo Yoga 9 (14INTL5) 2021-08-25T17:44:57Z Lorenzo Pieralisi lorenzo.pieralisi@arm.com 2021-08-23T10:46:18Z urn:sha1:437b38c51162f8b87beb28a833c4d5dc85fa864e 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: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2021-08-19T00:02:55Z Alexey Dobriyan adobriyan@gmail.com 2021-08-02T20:40:32Z urn:sha1:c0891ac15f0428ffa81b2e818d416bdf3cb74ab6 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: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> 2021-08-16T14:47:02Z Bob Moore robert.moore@intel.com 2021-08-03T18:11:57Z urn:sha1:696e0c937d07a79341d6e5da23fb6abc1d2f842b Version 20210730. ACPICA commit 2195f614e79442beb4d24d7a29a6347493e444e5 Link: https://github.com/acpica/acpica/commit/2195f614 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2021-08-16T14:47:02Z Bob Moore robert.moore@intel.com 2021-08-03T18:11:21Z urn:sha1:89ceb98ac1184e7c28b7f6feb877986f77591103 ACPICA commit 5acc6818c537888be147d9da6b280a0b8c241a1d Link: https://github.com/acpica/acpica/commit/5acc6818 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>