kernel/linux.git/drivers/acpi/tables.c, branch v6.2.2

ACPI: tables: Fix the stale comments for acpi_locate_initial_tables()

2022-11-10T19:15:55+00:00

sdt_entry[] is long gone by commit ceb6c4683902 ("ACPICA: Remove duplicate table manager"), update the comments to avoid confusion. Signed-off-by: Hanjun Guo Signed-off-by: Rafael J. Wysocki

ACPI: tables: Print CORE_PIC information when MADT is parsed

2022-11-03T18:32:33+00:00

When MADT is parsed, print CORE_PIC information as below: ACPI: CORE PIC (processor_id[0x00] core_id[0x00] enabled) ACPI: CORE PIC (processor_id[0x01] core_id[0x01] enabled) ... ACPI: CORE PIC (processor_id[0xff] core_id[0xff] enabled) This debug information will be very helpful to bring up early systems to see if processor_id and core_id are matched or not as spec defined. Signed-off-by: Huacai Chen Signed-off-by: Rafael J. Wysocki

ACPI: tables: Make LAPIC_ADDR_OVR address readable in message

2022-03-25T17:11:42+00:00

Without fix: [ 0.005429] ACPI: LAPIC_ADDR_OVR (address[(____ptrval____)]) With fix: [ 0.005429] ACPI: LAPIC_ADDR_OVR (address[0x800fee00000]) Co-developed-by: Suravee Suthikulpanit Signed-off-by: Suravee Suthikulpanit Signed-off-by: Vasant Hegde [ rjw: Subject edits ] Signed-off-by: Rafael J. Wysocki

ACPI: tables: Add AGDI to the list of known table signatures

2022-03-10T19:16:15+00:00

Add AGDI to the list of known ACPI table signatures to allow the kernel to recognize it when upgrading tables via initrd. Signed-off-by: Ilkka Koskinen Reviewed-by: Russell King (Oracle) Signed-off-by: Rafael J. Wysocki

Merge back ACPI tables material for 5.18.

2022-02-18T18:51:16+00:00

ACPI: tables: Quiet ACPI table not found warning

2022-02-15T19:03:16+00:00

Paul reports that the ACPI core complains on every boot about a missing CEDT table. Unlike the standard NUMA tables (SRAT, MADT, and SLIT) that are critical to NUMA init, CEDT is only expected on CXL platforms. Given the notice is not actionable lower its severity to debug. Link: https://lore.kernel.org/r/55f5c077-061c-7e53-b02d-53dde1dd654f@molgen.mpg.de Fixes: fd49f99c1809 ("ACPI: NUMA: Add a node and memblk for each CFMWS not in SRAT") Reported-by: Paul Menzel Signed-off-by: Dan Williams Signed-off-by: Rafael J. Wysocki

ACPI: tables: Add CEDT signature to the list of known tables

2022-02-04T18:43:56+00:00

Add ACPI_SIG_CEDT to table_sigs[] in "drivers/acpi/tables.c". Signed-off-by: Robert Kiraly [ rjw: Rebase, new subject and changelog ] Signed-off-by: Rafael J. Wysocki

Merge tag 'cxl-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

2022-01-12T23:57:59+00:00

Pull CXL (Compute Express Link) updates from Dan Williams: "The highlight is initial support for CXL memory hotplug. The static NUMA node (ACPI SRAT Physical Address to Proximity Domain) information known to platform firmware is extended to support the potential performance-class / memory-target nodes dynamically created from available CXL memory device capacity. New unit test infrastructure is added for validating health information payloads. Fixes to module reload stress and stack usage from exposure in -next are included. A symbol rename and some other miscellaneous fixups are included as well. Summary: - Rework ACPI sub-table infrastructure to optionally be used outside of __init scenarios and use it for CEDT.CFMWS sub-table parsing. - Add support for extending num_possible_nodes by the potential hotplug CXL memory ranges - Extend tools/testing/cxl with mock memory device health information - Fix a module-reload workqueue race - Fix excessive stack-frame usage - Rename the driver context data structure from "cxl_mem" since that name collides with a proposed driver name - Use EXPORT_SYMBOL_NS_GPL instead of -DDEFAULT_SYMBOL_NAMESPACE at build time" * tag 'cxl-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: cxl/core: Remove cxld_const_init in cxl_decoder_alloc() cxl/pmem: Fix module reload vs workqueue state ACPI: NUMA: Add a node and memblk for each CFMWS not in SRAT cxl/test: Mock acpi_table_parse_cedt() cxl/acpi: Convert CFMWS parsing to ACPI sub-table helpers ACPI: Add a context argument for table parsing handlers ACPI: Teach ACPI table parsing about the CEDT header format ACPI: Keep sub-table parsing infrastructure available for modules tools/testing/cxl: add mock output for the GET_HEALTH_INFO command cxl/memdev: Remove unused cxlmd field cxl/core: Convert to EXPORT_SYMBOL_NS_GPL cxl/memdev: Change cxl_mem to a more descriptive name cxl/mbox: Remove bad comment cxl/pmem: Fix reference counting for delayed work

Merge branches 'acpi-tables', 'acpi-numa', 'acpi-sysfs', 'acpi-cppc', 'acpi-thermal' and 'acpi-battery'

2022-01-10T16:22:15+00:00

Merge ACPI tables parsing code update, NUMA-related ACPI update, CPPC documentation update, ACPI sysfs attributes handling update and ACPI thermal and battery drivers updates for 5.17-rc1: - Add AEST to the list of known ACPI table signatures (Shuuichirou Ishii). - Make ACPI NUMA code take hotpluggable memblocks into account when CONFIG_MEMORY_HOTPLUG is not set (Vitaly Kuznetsov). - Use default_groups in kobj_type in the ACPI sysfs code (Greg Kroah-Hartman). - Rearrange _CPC structure documentation (Andy Shevchenko). - Drop an always true check from the ACPI thermal driver (Adam Borowski). - Add new "not charging" quirk for Lenovo ThinkPads to the ACPI battery driver (Thomas Weißschuh). * acpi-tables: ACPI: tables: Add AEST to the list of known table signatures * acpi-numa: ACPI: NUMA: Process hotpluggable memblocks when !CONFIG_MEMORY_HOTPLUG * acpi-sysfs: ACPI: sysfs: use default_groups in kobj_type * acpi-cppc: ACPI: CPPC: Amend documentation in the comments * acpi-thermal: ACPI: thermal: drop an always true check * acpi-battery: ACPI: battery: Add the ThinkPad "Not Charging" quirk

ACPICA: Use original pointer for virtual origin tables

2021-12-27T16:01:28+00:00

ACPICA commit dfa3feffa8f760b686207d09dc880cd2f26c72af 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, alter the lifecycle of table descriptors. Internal physical tables keep the current behaviour where only the address is set on install, and the pointer is set on acquire. Virtual tables (internal and external) now store the pointer on initialisation and use that on acquire (which will redundantly set *table_ptr to itself, but changing that is both unnecessary and overly complicated as acpi_tb_acquire_table is called with both a pointer to a variable and a pointer to Table->Pointer itself). This requires propagating the (possible) table pointer everywhere in order to make sure pointers make it through to acpi_tb_acquire_temp_table, which requires a change to the acpi_install_table interface. Instead of taking an ACPI_PHYSADDR_TYPE and a boolean indicating whether it's physical or virtual, it is now split into acpi_install_table (that takes an external virtual table pointer) and acpi_install_physical_table (that takes an ACPI_PHYSADDR_TYPE for an internal physical table address). This also has the benefit of providing a cleaner API. Link: https://github.com/acpica/acpica/commit/dfa3feff Signed-off-by: Bob Moore [ rjw: Adjust the code in tables.c to match interface changes ] Signed-off-by: Rafael J. Wysocki