kernel.git/drivers/acpi/tables.c, branch linux-5.1.y

ACPI / tables: table override from built-in initrd

2019-01-14T10:42:18Z

In some scenario, we need to build initrd with kernel in a single image. This can simplify system deployment process by downloading the whole system once, such as in IC verification. This patch adds support to override ACPI tables from built-in initrd. Signed-off-by: Shunyong Yang [ rjw: Minor cleanups ] Signed-off-by: Rafael J. Wysocki

ACPI / tables: Add an ifdef around amlcode and dsdt_amlcode

2018-12-20T20:37:28Z

Clang warns: drivers/acpi/tables.c:715:14: warning: unused variable 'amlcode' [-Wunused-variable] static void *amlcode __attribute__ ((weakref("AmlCode"))); ^ drivers/acpi/tables.c:716:14: warning: unused variable 'dsdt_amlcode' [-Wunused-variable] static void *dsdt_amlcode __attribute__ ((weakref("dsdt_aml_code"))); ^ 2 warnings generated. The only uses of these variables are hiddem behind CONFIG_ACPI_CUSTOM_DSDT so do the same thing here. Fixes: 82e4eb4e9653 (ACPI / tables: add DSDT AmlCode new declaration name support) Signed-off-by: Nathan Chancellor Signed-off-by: Rafael J. Wysocki

ACPI / tables: add DSDT AmlCode new declaration name support

2018-12-13T22:07:37Z

A new naming rule was added in ACPICA version 20180427 changing the DSDT AML code name from "AmlCode" to "dsdt_aml_code". That change was made by commit 83b2fa943ba8 "ACPICA: iASL: Enhance the -tc option (create AML hex file in C)". Tested: ACPICA release version 20180427+. ARM64: QCOM QDF2400 GCC: 4.8.5 20150623 Signed-off-by: Wang Dongsheng [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki

mm: remove include/linux/bootmem.h

2018-10-31T15:54:16Z

Move remaining definitions and declarations from include/linux/bootmem.h into include/linux/memblock.h and remove the redundant header. The includes were replaced with the semantic patch below and then semi-automated removal of duplicated '#include @@ @@ - #include + #include [sfr@canb.auug.org.au: dma-direct: fix up for the removal of linux/bootmem.h] Link: http://lkml.kernel.org/r/20181002185342.133d1680@canb.auug.org.au [sfr@canb.auug.org.au: powerpc: fix up for removal of linux/bootmem.h] Link: http://lkml.kernel.org/r/20181005161406.73ef8727@canb.auug.org.au [sfr@canb.auug.org.au: x86/kaslr, ACPI/NUMA: fix for linux/bootmem.h removal] Link: http://lkml.kernel.org/r/20181008190341.5e396491@canb.auug.org.au Link: http://lkml.kernel.org/r/1536927045-23536-30-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport Signed-off-by: Stephen Rothwell Acked-by: Michal Hocko Cc: Catalin Marinas Cc: Chris Zankel Cc: "David S. Miller" Cc: Geert Uytterhoeven Cc: Greentime Hu Cc: Greg Kroah-Hartman Cc: Guan Xuetao Cc: Ingo Molnar Cc: "James E.J. Bottomley" Cc: Jonas Bonn Cc: Jonathan Corbet Cc: Ley Foon Tan Cc: Mark Salter Cc: Martin Schwidefsky Cc: Matt Turner Cc: Michael Ellerman Cc: Michal Simek Cc: Palmer Dabbelt Cc: Paul Burton Cc: Richard Kuo Cc: Richard Weinberger Cc: Rich Felker Cc: Russell King Cc: Serge Semin Cc: Thomas Gleixner Cc: Tony Luck Cc: Vineet Gupta Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2018-06-08T18:10:58Z

Pull arm64 updates from Catalin Marinas: "Apart from the core arm64 and perf changes, the Spectre v4 mitigation touches the arm KVM code and the ACPI PPTT support touches drivers/ (acpi and cacheinfo). I should have the maintainers' acks in place. Summary: - Spectre v4 mitigation (Speculative Store Bypass Disable) support for arm64 using SMC firmware call to set a hardware chicken bit - ACPI PPTT (Processor Properties Topology Table) parsing support and enable the feature for arm64 - Report signal frame size to user via auxv (AT_MINSIGSTKSZ). The primary motivation is Scalable Vector Extensions which requires more space on the signal frame than the currently defined MINSIGSTKSZ - ARM perf patches: allow building arm-cci as module, demote dev_warn() to dev_dbg() in arm-ccn event_init(), miscellaneous cleanups - cmpwait() WFE optimisation to avoid some spurious wakeups - L1_CACHE_BYTES reverted back to 64 (for performance reasons that have to do with some network allocations) while keeping ARCH_DMA_MINALIGN to 128. cache_line_size() returns the actual hardware Cache Writeback Granule - Turn LSE atomics on by default in Kconfig - Kernel fault reporting tidying - Some #include and miscellaneous cleanups" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (53 commits) arm64: Fix syscall restarting around signal suppressed by tracer arm64: topology: Avoid checking numa mask for scheduler MC selection ACPI / PPTT: fix build when CONFIG_ACPI_PPTT is not enabled arm64: cpu_errata: include required headers arm64: KVM: Move VCPU_WORKAROUND_2_FLAG macros to the top of the file arm64: signal: Report signal frame size to userspace via auxv arm64/sve: Thin out initialisation sanity-checks for sve_max_vl arm64: KVM: Add ARCH_WORKAROUND_2 discovery through ARCH_FEATURES_FUNC_ID arm64: KVM: Handle guest's ARCH_WORKAROUND_2 requests arm64: KVM: Add ARCH_WORKAROUND_2 support for guests arm64: KVM: Add HYP per-cpu accessors arm64: ssbd: Add prctl interface for per-thread mitigation arm64: ssbd: Introduce thread flag to control userspace mitigation arm64: ssbd: Restore mitigation status on CPU resume arm64: ssbd: Skip apply_ssbd if not using dynamic mitigation arm64: ssbd: Add global mitigation state accessor arm64: Add 'ssbd' command-line option arm64: Add ARCH_WORKAROUND_2 probing arm64: Add per-cpu infrastructure to call ARCH_WORKAROUND_2 arm64: Call ARCH_WORKAROUND_2 on transitions between EL0 and EL1 ...

ACPI: Add PPTT to injectable table list

2018-05-17T16:28:09Z

Add ACPI_SIG_PPTT to the table so initrd's can override the system topology. Tested-by: Ard Biesheuvel Tested-by: Vijaya Kumar K Tested-by: Xiongfeng Wang Tested-by: Tomasz Nowicki Acked-by: Ard Biesheuvel Acked-by: Rafael J. Wysocki Signed-off-by: Geoffrey Blake Signed-off-by: Jeremy Linton Signed-off-by: Catalin Marinas

ACPI / tables: improve comments regarding acpi_parse_entries_array()

2018-05-12T11:53:46Z

I found the description of the table_size argument to the function acpi_parse_entries_array() unclear and ambiguous. This is a minor documentation change to improve that description so I don't misuse the argument again in the future, and it is hopefully clearer to other future users. Signed-off-by: Al Stone [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki

ACPI: add NFIT and HMAT to the initrd override list

2018-02-22T21:46:35Z

These tables, NFIT and HMAT, are essential for describing next-generation platform memory topologies and performance characteristics. Allow them to be overridden for debug and test and purposes. Signed-off-by: Dan Williams Reviewed-by: Ross Zwisler Signed-off-by: Rafael J. Wysocki

ACPI / tables: Add IORT to injectable table list

2018-02-07T10:06:48Z

Loading IORT table from initrd can be used to fix severe firmware IORT defects temporarily before platform/BIOS vendor releases an upgraded BIOS binary. Moreover, it is very powerful to debug SMMU node/device probe, MSI allocation, stream id translation and IORT table from firmware. It is also very useful to enable SMMU and devices behind SMMU before firmware is ready. This patch adds ACPI_SIG_IORT to the table, which enables IORT from initrd to override which from firmware. Signed-off-by: Yang Shunyong Acked-by: Hanjun Guo Signed-off-by: Rafael J. Wysocki

ACPICA: Tables: Change table duplication check to be related to acpi_gbl_verify_table_checksum

2017-07-20T14:38:25Z

ACPICA commit 3d837b5d4b1033942b4d91c7d3801a09c3157918 acpi_gbl_verify_table_checksum is used to avoid validating (mapping) an entire table in OS boot stage. 2nd "Reload" check in acpi_tb_install_standard_table() is prepared for the same purpose. So this patch combines them together using a renamed acpi_gbl_enable_table_validation flag. Lv Zheng. Link: https://github.com/acpica/acpica/commit/3d837b5d Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki