kernel/linux.git/arch/arc/Kconfig, branch v5.15.208

Merge tag 'trace-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2021-09-05T18:50:41+00:00

Pull tracing updates from Steven Rostedt: - simplify the Kconfig use of FTRACE and TRACE_IRQFLAGS_SUPPORT - bootconfig can now start histograms - bootconfig supports group/all enabling - histograms now can put values in linear size buckets - execnames can be passed to synthetic events - introduce "event probes" that attach to other events and can retrieve data from pointers of fields, or record fields as different types (a pointer to a string as a string instead of just a hex number) - various fixes and clean ups * tag 'trace-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (35 commits) tracing/doc: Fix table format in histogram code selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes selftests/ftrace: Add selftest for testing eprobe events on synthetic events selftests/ftrace: Add test case to test adding and removing of event probe selftests/ftrace: Fix requirement check of README file selftests/ftrace: Add clear_dynamic_events() to test cases tracing: Add a probe that attaches to trace events tracing/probes: Reject events which have the same name of existing one tracing/probes: Have process_fetch_insn() take a void * instead of pt_regs tracing/probe: Change traceprobe_set_print_fmt() to take a type tracing/probes: Use struct_size() instead of defining custom macros tracing/probes: Allow for dot delimiter as well as slash for system names tracing/probe: Have traceprobe_parse_probe_arg() take a const arg tracing: Have dynamic events have a ref counter tracing: Add DYNAMIC flag for dynamic events tracing: Replace deprecated CPU-hotplug functions. MAINTAINERS: Add an entry for os noise/latency tracepoint: Fix kerneldoc comments bootconfig/tracing/ktest: Update ktest example for boot-time tracing tools/bootconfig: Use per-group/all enable option in ftrace2bconf script ...

ARC: mm: support 3 levels of page tables

2021-08-26T20:43:19+00:00

ARCv2 MMU is software walked and Linux implements 2 levels of paging: pgd/pte. Forthcoming hw will have multiple levels, so this change preps mm code for same. It is also fun to try multi levels even on soft-walked code to ensure generic mm code is robust to handle. overview ________ 2 levels {pgd, pte} : pmd is folded but pmd_* macros are valid and operate on pgd 3 levels {pgd, pmd, pte}: - pud is folded and pud_* macros point to pgd - pmd_* macros operate on actual pmd code changes ____________ 1. #include 2. Define CONFIG_PGTABLE_LEVELS 3 3a. Define PMD_SHIFT, PMD_SIZE, PMD_MASK, pmd_t 3b. Define pmd_val() which actually deals with pmd (pmd_offset(), pmd_index() are provided by generic code) 3c. pmd_alloc_one()/pmd_free() also provided by generic code (pmd_populate/pmd_free already exist) 4. Define pud_none(), pud_bad() macros based on generic pud_val() which internally pertains to pgd now. 4b. define pud_populate() to just setup pgd Acked-by: Mike Rapoport Signed-off-by: Vineet Gupta

ARC: mm: remove tlb paranoid code

2021-08-24T21:25:48+00:00

This was used back in arc700 days when ASID allocator was fragile. Not needed in last 5 years Signed-off-by: Vineet Gupta

ARC: retire MMUv1 and MMUv2 support

2021-08-24T21:25:47+00:00

There's no known/active customer using them with latest kernels anyways. Removal helps cleanup code and remove the hack for MMU_VER to MMU_V[3-4] conversion Signed-off-by: Vineet Gupta

ARC: retire ARC750 support

2021-08-24T21:25:47+00:00

There's no known/active customer using them with latest kernels anyways. Signed-off-by: Vineet Gupta

tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig

2021-08-16T15:37:21+00:00

Make architectures select TRACE_IRQFLAGS_SUPPORT instead of having many defines. Link: https://lkml.kernel.org/r/20210731052233.4703-2-masahiroy@kernel.org Acked-by: Heiko Carstens Acked-by: Vineet Gupta #arch/arc Acked-by: Michael Ellerman (powerpc) Acked-by: Catalin Marinas Acked-by: Max Filippov Signed-off-by: Masahiro Yamada Signed-off-by: Steven Rostedt (VMware)

arc: Fix spelling mistake and grammar in Kconfig

2021-08-04T01:58:33+00:00

There is a spelling mistake and incorrect grammar in the Kconfig text. Fix them. Signed-off-by: Colin Ian King Signed-off-by: Vineet Gupta

arc: remove support for DISCONTIGMEM

2021-06-29T17:53:55+00:00

DISCONTIGMEM was replaced by FLATMEM with freeing of the unused memory map in v5.11. Remove the support for DISCONTIGMEM entirely. Link: https://lkml.kernel.org/r/20210608091316.3622-4-rppt@kernel.org Signed-off-by: Mike Rapoport Acked-by: Vineet Gupta Acked-by: Arnd Bergmann Acked-by: David Hildenbrand Cc: Geert Uytterhoeven Cc: Ivan Kokshaysky Cc: Jonathan Corbet Cc: Matt Turner Cc: Richard Henderson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: drop redundant HAVE_ARCH_TRANSPARENT_HUGEPAGE

2021-05-05T18:27:25+00:00

HAVE_ARCH_TRANSPARENT_HUGEPAGE has duplicate definitions on platforms that subscribe it. Drop these reduntant definitions and instead just select it on applicable platforms. Link: https://lkml.kernel.org/r/1617259448-22529-7-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Acked-by: Arnd Bergmann Acked-by: Vineet Gupta [arc] Cc: Russell King Cc: Albert Ou Cc: Alexander Viro Cc: Benjamin Herrenschmidt Cc: Borislav Petkov Cc: Catalin Marinas Cc: Christian Borntraeger Cc: Heiko Carstens Cc: Helge Deller Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: "James E.J. Bottomley" Cc: Michael Ellerman Cc: Palmer Dabbelt Cc: Paul Mackerras Cc: Paul Walmsley Cc: Rich Felker Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Vasily Gorbik Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: generalize ARCH_HAS_CACHE_LINE_SIZE

2021-05-05T18:27:25+00:00

Patch series "mm: some config cleanups", v2. This series contains config cleanup patches which reduces code duplication across platforms and also improves maintainability. There is no functional change intended with this series. This patch (of 6): ARCH_HAS_CACHE_LINE_SIZE config has duplicate definitions on platforms that subscribe it. Instead, just make it a generic option which can be selected on applicable platforms. This change reduces code duplication and makes it cleaner. Link: https://lkml.kernel.org/r/1617259448-22529-1-git-send-email-anshuman.khandual@arm.com Link: https://lkml.kernel.org/r/1617259448-22529-2-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Acked-by: Catalin Marinas [arm64] Acked-by: Vineet Gupta [arc] Cc: Will Deacon Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: "H. Peter Anvin" Cc: Albert Ou Cc: Alexander Viro Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: Christian Borntraeger Cc: Heiko Carstens Cc: Helge Deller Cc: "James E.J. Bottomley" Cc: Michael Ellerman Cc: Palmer Dabbelt Cc: Paul Mackerras Cc: Paul Walmsley Cc: Rich Felker Cc: Russell King Cc: Thomas Bogendoerfer Cc: Vasily Gorbik Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds