WireGuard for the Linux kernel https://git.zx2c4.com/wireguard-linux/atom/arch/arm64/kernel/acpi.c?h=update-toolchain 2024-07-11T18:10:02Z 2024-07-11T18:10:02Z Catalin Marinas catalin.marinas@arm.com 2024-07-11T18:10:02Z urn:sha1:4f3a6c4de7d932be94cde2c52ae58feeec9c9dbf * for-next/vcpu-hotplug: (21 commits) : arm64 support for virtual CPU hotplug (ACPI) irqchip/gic-v3: Fix 'broken_rdists' unused warning when !SMP and !ACPI arm64: Kconfig: Fix dependencies to enable ACPI_HOTPLUG_CPU cpumask: Add enabled cpumask for present CPUs that can be brought online arm64: document virtual CPU hotplug's expectations arm64: Kconfig: Enable hotplug CPU on arm64 if ACPI_PROCESSOR is enabled. arm64: arch_register_cpu() variant to check if an ACPI handle is now available. arm64: psci: Ignore DENIED CPUs irqchip/gic-v3: Add support for ACPI's disabled but 'online capable' CPUs irqchip/gic-v3: Don't return errors from gic_acpi_match_gicc() arm64: acpi: Harden get_cpu_for_acpi_id() against missing CPU entry arm64: acpi: Move get_cpu_for_acpi_id() to a header ACPI: Add post_eject to struct acpi_scan_handler for cpu hotplug ACPI: scan: switch to flags for acpi_scan_check_and_detach() ACPI: processor: Register deferred CPUs from acpi_processor_get_info() ACPI: processor: Add acpi_get_processor_handle() helper ACPI: processor: Move checks and availability of acpi_processor earlier ACPI: processor: Fix memory leaks in error paths of processor_add() ACPI: processor: Return an error if acpi_processor_get_info() fails in processor_add() ACPI: processor: Drop duplicated check on _STA (enabled + present) cpu: Do not warn on arch_register_cpu() returning -EPROBE_DEFER ... 2024-07-04T15:33:13Z Liu Wei liuwei09@cestc.cn 2024-06-25T03:05:04Z urn:sha1:f5a4af3c752704272e9094466e66e21d4ee4e414 For varying privacy and security reasons, sometimes we would like to completely silence the _serial_ console, and only enable it when needed. But there are many existing systems that depend on this _serial_ console, so add acpi=nospcr to disable console in ACPI SPCR table as default _serial_ console. Signed-off-by: Liu Wei <liuwei09@cestc.cn> Suggested-by: Prarit Bhargava <prarit@redhat.com> Suggested-by: Will Deacon <will@kernel.org> Suggested-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Reviewed-by: Prarit Bhargava <prarit@redhat.com> Link: https://lore.kernel.org/r/20240625030504.58025-1-liuwei09@cestc.cn Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 2024-06-28T17:38:32Z Jonathan Cameron Jonathan.Cameron@huawei.com 2024-05-29T13:34:44Z urn:sha1:9d0873892f4d4bf62a351897e91e5169b4c6f4aa In order to move arch_register_cpu() to be called via the same path for initially present CPUs described by ACPI and hotplugged CPUs ACPI_HOTPLUG_CPU needs to be enabled. The protection against invalid IDs in acpi_map_cpu() is needed as at least one production BIOS is in the wild which reports entries in DSDT (with no _STA method, so assumed enabled and present) that don't match MADT. Tested-by: Miguel Luis <miguel.luis@oracle.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20240529133446.28446-18-Jonathan.Cameron@huawei.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 2024-06-13T09:18:40Z Sudeep Holla sudeep.holla@arm.com 2024-06-05T13:14:58Z urn:sha1:7a7a1cac3c2f5e3c859efb295bad3469e09e6f8f The ACPI FFH Opregion code can be moved out of arm64 arch code as it just uses SMCCC. Move all the ACPI FFH Opregion code into drivers/acpi/arm64/ffh.c Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Hanjun Guo <guohanjun@huawei.com> Link: https://lore.kernel.org/r/20240605131458.3341095-4-sudeep.holla@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 2024-04-18T15:17:33Z David Woodhouse dwmw@amazon.co.uk 2024-03-11T13:04:07Z urn:sha1:fbaad243b5368f19c1e96dc9d914eefaebcb6ecc If the firmware_signature changes then OSPM should not attempt to resume from hibernate, but should instead perform a clean reboot. Set the global swsusp_hardware_signature to allow the generic code to include the value in the swsusp header on disk, and perform the appropriate check on resume. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Link: https://lore.kernel.org/r/20240412073530.2222496-3-dwmw2@infradead.org Signed-off-by: Will Deacon <will@kernel.org> 2023-02-24T14:21:49Z Sudeep Holla sudeep.holla@arm.com 2023-02-23T13:57:42Z urn:sha1:1b561d3949f8478c5403c9752b5533211a757226 Allocated 'ffh_ctxt' memory leak is possible if the SMCCC version and conduit checks fail and -EOPNOTSUPP is returned without freeing the allocated memory. Fix the same by moving the allocation after the SMCCC version and conduit checks. Fixes: 1d280ce099db ("arm64: Add architecture specific ACPI FFH Opregion callbacks") Cc: <stable@vger.kernel.org> # 6.2.x Cc: Will Deacon <will@kernel.org> Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <error27@gmail.com> Suggested-by: Dan Carpenter <error27@gmail.com> Link: https://lore.kernel.org/r/202302191417.dAl9NuE8-lkp@intel.com/ Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://lore.kernel.org/r/20230223135742.2952091-1-sudeep.holla@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 2022-11-14T18:09:07Z Sudeep Holla sudeep.holla@arm.com 2022-11-10T13:45:05Z urn:sha1:1d280ce099db396e092cac1aa9bf2ea8beee6d76 FFH Operation Region space can be used to trigger SMC or HVC calls, using the Arm SMC Calling Convention (SMCCC). The choice of conduit (SMC or HVC) is based on what the kernel choose based on PSCI as with any other users of SMCCC within the kernel. Function identifiers only in the SMCCC SiP Service, OEM Service and FF-A specific call range are allowed in FFH Opregions. Offset can be either 0(32 bit calling convention) or 1(64 bit calling convention). The length must be set with the range applicable based on the value of the offset. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2022-06-27T11:22:31Z Kefeng Wang wangkefeng.wang@huawei.com 2022-06-07T12:50:26Z urn:sha1:f23eab0bfaefb3319c7de90c9c632bebf53a03bc Add hook for arm64's special operation when ioremap(), then ioremap_wc/np/cache is converted to use ioremap_prot() from GENERIC_IOREMAP, update the Copyright and kill the unused inclusions. Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Link: https://lore.kernel.org/r/20220607125027.44946-6-wangkefeng.wang@huawei.com Signed-off-by: Will Deacon <will@kernel.org> 2021-12-06T16:12:53Z Rob Herring robh@kernel.org 2021-10-29T14:40:55Z urn:sha1:b6363fe7b5135bfb5aea03f414148b3c2417702e Use of the of_scan_flat_dt() function predates libfdt and is discouraged as libfdt provides a nicer set of APIs. Rework dt_scan_depth1_nodes to use libfdt calls directly, and rename it to dt_is_stub() to reflect exactly what it checking. Cc: Will Deacon <will@kernel.org> Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20211029144055.2365814-1-robh@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.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>