Changes in Kconfig

21bcc499 - sh: Migrate to the generic rule for built-in DTB

Sun, 22 Dec 2024 00:32:07 +0000

sh: Migrate to the generic rule for built-in DTBCommit 654102df2ac2 ("kbuild: add generic support for built-inboot DTBs") introduced generic support for built-in DTBs.Select GENERIC_BUILTIN_DTB when built-in DTB support is enabled.To keep consistency across architectures, this commit also renamesCONFIG_USE_BUILTIN_DTB to CONFIG_BUILTIN_DTB, andCONFIG_BUILTIN_DTB_SOURCE to CONFIG_BUILTIN_DTB_NAME.Signed-off-by: Masahiro Yamada Reviewed-by: John Paul Adrian Glaubitz Signed-off-by: John Paul Adrian Glaubitz List of files: /linux-6.15/arch/sh/Kconfig

31daa343 - crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32

Tue, 17 Sep 2024 16:37:20 +0000

crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32Fixes boot failures on 6.9 on PPC_BOOK3S_32 machines using Open Firmware. On these machines, the kernel refuses to boot from non-zeroPHYSICAL_START, which occurs when CRASH_DUMP is on.Since most PPC_BOOK3S_32 machines boot via Open Firmware, it shoulddefault to off for them. Users booting via some other mechanism can stillturn it on explicitly.Does not change the default on any other architectures for thetime being.Link: https://lkml.kernel.org/r/20240917163720.1644584-1-dave@vasilevsky.caFixes: 75bc255a7444 ("crash: clean up kdump related config items")Signed-off-by: Dave Vasilevsky Reported-by: Reimar Döffinger Closes: https://lists.debian.org/debian-powerpc/2024/07/msg00001.htmlAcked-by: Michael Ellerman [powerpc]Acked-by: Baoquan He Cc: "Eric W. Biederman" Cc: John Paul Adrian Glaubitz Cc: Reimar Döffinger Cc: Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/sh/Kconfig

c81a748e - sh: Emulate one-byte cmpxchg

Wed, 27 Mar 2024 22:21:31 +0000

sh: Emulate one-byte cmpxchgUse the new cmpxchg_emu_u8() to emulate one-byte cmpxchg() on sh.[ paulmck: Drop two-byte support per Arnd Bergmann feedback. ][ paulmck: Apply feedback from Naresh Kamboju. ][ Apply Geert Uytterhoeven feedback. ]Signed-off-by: Paul E. McKenney Cc: Andi Shyti Cc: Palmer Dabbelt Cc: Masami Hiramatsu Cc: Arnd Bergmann Cc: Acked-by: John Paul Adrian Glaubitz List of files: /linux-6.15/arch/sh/Kconfig

a71ac6c9 - sh: Drop support for memory hotplug and memory hotremove

Sat, 18 May 2024 11:58:07 +0000

sh: Drop support for memory hotplug and memory hotremoveSupport for memory hotplug was restricted to 64-bit platforms in7ec58a2b941e ("mm/memory_hotplug: restrict CONFIG_MEMORY_HOTPLUGto 64 bit") while sh is a pure 32-bit platform since the removalof sh5 support. Thus, drop support for memory hotplug and theassociated memory hotremove on this platform.Signed-off-by: Oscar Salvador Reviewed-by: John Paul Adrian Glaubitz Link: https://lore.kernel.org/r/20240518115808.8888-2-osalvador@suse.deSigned-off-by: John Paul Adrian Glaubitz List of files: /linux-6.15/arch/sh/Kconfig

10c88ca5 - sh: dreamcast: Fix GAPS PCI bridge addressing

Sat, 11 May 2024 19:16:14 +0000

sh: dreamcast: Fix GAPS PCI bridge addressingThe G2-to-PCI bridge chip found in SEGA Dreamcast assumes P2 arearelative addresses.Set the appropriate IOPORT base offset.Tested-by: Paul Cercueil Signed-off-by: Artur Rojek Reviewed-by: John Paul Adrian Glaubitz Link: https://lore.kernel.org/r/20240511191614.68561-2-contact@artur-rojek.euSigned-off-by: John Paul Adrian Glaubitz List of files: /linux-6.15/arch/sh/Kconfig

d9a1dab6 - sh: Convert the last use of 'optional' property in Kconfig

Mon, 22 Apr 2024 16:41:03 +0000

sh: Convert the last use of 'optional' property in KconfigThe 'choice' statement is primarily used to exclusively select oneoption, but the 'optional' property allows all entries to be disabled.This feature is rarely used. In fact, it is only used in arch/sh/Kconfigbecause the equivalent outcome can be achieved by inserting one moreentry.The 'optional' property support will be removed from Kconfig.This commit replaces the 'optional' property with a dummy option,CMDLINE_FROM_BOOTLOADER, as seen in some other architectures.Note: The 'default CMDLINE_OVERWRITE' statement does not work as intended in combination with 'optional'. If neither CONFIG_CMDLINE_OVERWRITE nor CONFIG_CMDLINE_EXTEND is specified in a defconfig file, both of them are disabled. This is a bug. To maintain the current behavior, I added CONFIG_CMDLINE_FROM_BOOTLOADER=y to those defconfig files.Signed-off-by: Masahiro Yamada Acked-by: John Paul Adrian Glaubitz List of files: /linux-6.15/arch/sh/Kconfig

25176ad0 - mm/treewide: rename CONFIG_HAVE_FAST_GUP to CONFIG_HAVE_GUP_FAST

Tue, 02 Apr 2024 12:55:15 +0000

mm/treewide: rename CONFIG_HAVE_FAST_GUP to CONFIG_HAVE_GUP_FASTNowadays, we call it "GUP-fast", the external interface includes functionslike "get_user_pages_fast()", and we renamed all internal functions toreflect that as well.Let's make the config option reflect that.Link: https://lkml.kernel.org/r/20240402125516.223131-3-david@redhat.comSigned-off-by: David Hildenbrand Reviewed-by: Mike Rapoport (IBM) Reviewed-by: Jason Gunthorpe Reviewed-by: John Hubbard Cc: Peter Xu Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/sh/Kconfig

8690bbcf - Introduce cpu_dcache_is_aliasing() across all architectures

Thu, 15 Feb 2024 14:46:32 +0000

Introduce cpu_dcache_is_aliasing() across all architecturesIntroduce a generic way to query whether the data cache is virtuallyaliased on all architectures. Its purpose is to ensure that subsystemswhich are incompatible with virtually aliased data caches (e.g. FS_DAX)can reliably query this.For data cache aliasing, there are three scenarios dependending on thearchitecture. Here is a breakdown based on my understanding:A) The data cache is always aliasing:* arc* csky* m68k (note: shared memory mappings are incoherent ? SHMLBA is missing there.)* sh* pariscB) The data cache aliasing is statically known or depends on querying CPU state at runtime:* arm (cache_is_vivt() || cache_is_vipt_aliasing())* mips (cpu_has_dc_aliases)* nios2 (NIOS2_DCACHE_SIZE > PAGE_SIZE)* sparc32 (vac_cache_size > PAGE_SIZE)* sparc64 (L1DCACHE_SIZE > PAGE_SIZE)* xtensa (DCACHE_WAY_SIZE > PAGE_SIZE)C) The data cache is never aliasing:* alpha* arm64 (aarch64)* hexagon* loongarch (but with incoherent write buffers, which are disabled since commit d23b7795 ("LoongArch: Change SHMLBA from SZ_64K to PAGE_SIZE"))* microblaze* openrisc* powerpc* riscv* s390* um* x86Require architectures in A) and B) to select ARCH_HAS_CPU_CACHE_ALIASING andimplement "cpu_dcache_is_aliasing()".Architectures in C) don't select ARCH_HAS_CPU_CACHE_ALIASING, and thuscpu_dcache_is_aliasing() simply evaluates to "false".Note that this leaves "cpu_icache_is_aliasing()" to be implemented as futurework. This would be useful to gate features like XIP on architectureswhich have aliasing CPU dcache-icache but not CPU dcache-dcache.Use "cpu_dcache" and "cpu_cache" rather than just "dcache" and "cache"to clarify that we really mean "CPU data cache" and "CPU cache" toeliminate any possible confusion with VFS "dentry cache" and "pagecache".Link: https://lore.kernel.org/lkml/20030910210416.GA24258@mail.jlokier.co.uk/Link: https://lkml.kernel.org/r/20240215144633.96437-9-mathieu.desnoyers@efficios.comFixes: d92576f1167c ("dax: does not work correctly with virtual aliasing caches")Signed-off-by: Mathieu Desnoyers Cc: Dan Williams Cc: Vishal Verma Cc: Dave Jiang Cc: Matthew Wilcox Cc: Arnd Bergmann Cc: Russell King Cc: Alasdair Kergon Cc: Christoph Hellwig Cc: Dave Chinner Cc: Heiko Carstens Cc: kernel test robot Cc: Michael Sclafani Cc: Mike Snitzer Cc: Mikulas Patocka Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/sh/Kconfig

8daaed76 - sh: Remove superhyway bus support

Thu, 14 Sep 2023 15:55:22 +0000

sh: Remove superhyway bus supportThe superhyway bus driver was only referenced on SH4-202, which is now gone,so remove it all as well.I could find no trace of anything ever calling superhyway_register_driver(),not in the git history but also not on the web, so I assume this has neverserved any purpose on mainline kernels.Signed-off-by: Arnd Bergmann Reviewed-by: John Paul Adrian Glaubitz Link: https://lore.kernel.org/r/20230914155523.3839811-3-arnd@kernel.orgSigned-off-by: John Paul Adrian Glaubitz List of files: /linux-6.15/arch/sh/Kconfig

6c329558 - sh: Remove unused SH4-202 support

Thu, 14 Sep 2023 15:55:21 +0000

sh: Remove unused SH4-202 supportThis early prototype of the SH4 CPU was only used in the "microdev" boardthat is now removed, so all of the SH4-202 supoprt can also be removed.Signed-off-by: Arnd Bergmann Reviewed-by: John Paul Adrian Glaubitz Link: https://lore.kernel.org/r/20230914155523.3839811-2-arnd@kernel.orgSigned-off-by: John Paul Adrian Glaubitz List of files: /linux-6.15/arch/sh/Kconfig

3ca64d06 - sh: Remove stale microdev board

Thu, 14 Sep 2023 15:55:20 +0000

sh: Remove stale microdev boardThis board was an early prototype platform for early SH4 CPUs and relatedto the already removed SH5 cayman platform.The microdev board itself has been kept in the tree for this long despitebeing in a bad shape even 20 years ago when it got merged, with no workingPCI support and ugly workarounds for its I/O port implementation thattry to emulate PC style peripheral access despite being quite differentin reality.As far as I can tell, the ethernet, display, USB and PCI devices on italready broke at some point (afbb9d8d5266b, 46bc85872040a), so I thinkwe can just removeit entirely.Link: https://lore.kernel.org/lkml/09094baf-dadf-4bce-9f63-f2a1f255f9a8@app.fastmail.com/Signed-off-by: Arnd Bergmann Reviewed-by: John Paul Adrian Glaubitz Link: https://lore.kernel.org/r/20230914155523.3839811-1-arnd@kernel.orgSigned-off-by: John Paul Adrian Glaubitz List of files: /linux-6.15/arch/sh/Kconfig

40445d06 - sh/kexec: refactor for kernel/Kconfig.kexec

Wed, 12 Jul 2023 16:15:44 +0000

sh/kexec: refactor for kernel/Kconfig.kexecThe kexec and crash kernel options are provided in the commonkernel/Kconfig.kexec. Utilize the common options and providethe ARCH_SUPPORTS_ and ARCH_SELECTS_ entries to recreate theequivalent set of KEXEC and CRASH options.Link: https://lkml.kernel.org/r/20230712161545.87870-14-eric.devolder@oracle.comSigned-off-by: Eric DeVolder Acked-by: John Paul Adrian Glaubitz Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/sh/Kconfig

0453c9a7 - sh: mm: convert to GENERIC_IOREMAP

Thu, 06 Jul 2023 15:45:13 +0000

sh: mm: convert to GENERIC_IOREMAPBy taking GENERIC_IOREMAP method, the generic generic_ioremap_prot(),generic_iounmap(), and their generic wrapper ioremap_prot(), ioremap() andiounmap() are all visible and available to arch. Arch needs to providewrapper functions to override the generic versions if there's archspecific handling in its ioremap_prot(), ioremap() or iounmap(). Thischange will simplify implementation by removing duplicated code withgeneric_ioremap_prot() and generic_iounmap(), and has the equivalentfunctioality as before.Here, add wrapper functions ioremap_prot() and iounmap() for SuperH'sspecial operation when ioremap() and iounmap().Link: https://lkml.kernel.org/r/20230706154520.11257-13-bhe@redhat.comSigned-off-by: Baoquan He Cc: John Paul Adrian Glaubitz Cc: Yoshinori Sato Cc: Rich Felker Cc: Alexander Gordeev Cc: Arnd Bergmann Cc: Brian Cain Cc: Catalin Marinas Cc: Christian Borntraeger Cc: Christophe Leroy Cc: Christoph Hellwig Cc: Chris Zankel Cc: David Laight Cc: Geert Uytterhoeven Cc: Gerald Schaefer Cc: Heiko Carstens Cc: Helge Deller Cc: "James E.J. Bottomley" Cc: Jonas Bonn Cc: Kefeng Wang Cc: Matthew Wilcox Cc: Max Filippov Cc: Michael Ellerman Cc: Mike Rapoport (IBM) Cc: Nathan Chancellor Cc: Nicholas Piggin Cc: Niklas Schnelle Cc: Stafford Horne Cc: Stefan Kristiansson Cc: Sven Schnelle Cc: Vasily Gorbik Cc: Vineet Gupta Cc: Will Deacon Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/sh/Kconfig

a050ba1e - mm/fault: convert remaining simple cases to lock_mm_and_find_vma()

Sat, 24 Jun 2023 17:55:38 +0000

mm/fault: convert remaining simple cases to lock_mm_and_find_vma()This does the simple pattern conversion of alpha, arc, csky, hexagon,loongarch, nios2, sh, sparc32, and xtensa to the lock_mm_and_find_vma()helper. They all have the regular fault handling pattern without oddspecial cases.The remaining architectures all have something that keeps us from astraightforward conversion: ia64 and parisc have stacks that can growboth up as well as down (and ia64 has special address region checks).And m68k, microblaze, openrisc, sparc64, and um end up having extrarules about only expanding the stack down a limited amount below theuser space stack pointer. That is something that x86 used to do too(long long ago), and it probably could just be skipped, but it stillmakes the conversion less than trivial.Note that this conversion was done manually and with the exception ofalpha without any build testing, because I have a fairly limited cross-building environment. The cases are all simple, and I went through thechanges several times, but...Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/sh/Kconfig

01eb454e - sh/cpu: Switch to arch_cpu_finalize_init()

Tue, 13 Jun 2023 23:39:33 +0000

sh/cpu: Switch to arch_cpu_finalize_init()check_bugs() is about to be phased out. Switch over to the newarch_cpu_finalize_init() implementation.No functional change.Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/r/20230613224545.371697797@linutronix.de List of files: /linux-6.15/arch/sh/Kconfig

8bc6666f - sh: Use generic GCC library routines

Thu, 23 Mar 2023 10:18:07 +0000

sh: Use generic GCC library routinesThe C implementations of __ashldi3(), __ashrdi3__(), and __lshrdi3() inarch/sh/lib/ are identical to the generic C implementations in lib/.Reduce duplication by switching SH to the generic versions.Update the include path in arch/sh/boot/compressed accordingly.Signed-off-by: Geert Uytterhoeven Acked-by: Palmer Dabbelt Reviewed-by: John Paul Adrian Glaubitz Link: https://lore.kernel.org/r/74dbe68dc8e2ffb6180092f73723fe21ab692c7a.1679566500.git.geert+renesas@glider.beSigned-off-by: John Paul Adrian Glaubitz List of files: /linux-6.15/arch/sh/Kconfig

fcbfe812 - Kconfig: introduce HAS_IOPORT option and select it as necessary

Thu, 23 Mar 2023 16:33:52 +0000

Kconfig: introduce HAS_IOPORT option and select it as necessaryWe introduce a new HAS_IOPORT Kconfig option to indicate support for I/OPort access. In a future patch HAS_IOPORT=n will disable compilation ofthe I/O accessor functions inb()/outb() and friends on architectureswhich can not meaningfully support legacy I/O spaces such as s390.The following architectures do not select HAS_IOPORT:* ARC* C-SKY* Hexagon* Nios II* OpenRISC* s390* User-Mode Linux* XtensaAll other architectures select HAS_IOPORT at least conditionally.The "depends on" relations on HAS_IOPORT in drivers as well as ifdefsfor HAS_IOPORT specific sections will be added in subsequent patches ona per subsystem basis.Co-developed-by: Arnd Bergmann Signed-off-by: Arnd Bergmann Acked-by: Johannes Berg # for ARCH=umAcked-by: Geert Uytterhoeven Signed-off-by: Niklas Schnelle Signed-off-by: Arnd Bergmann List of files: /linux-6.15/arch/sh/Kconfig

ee5a66d8 - gpiolib: remove empty asm/gpio.h files

Tue, 07 Feb 2023 14:29:41 +0000

gpiolib: remove empty asm/gpio.h filesThe arm and sh versions of this file are identical to the genericversions and can just be removed.The drivers that actually use the sh3 specific version also includecpu/gpio.h directly, with the exception of magicpanelr2, which iseasily fixed. This leaves coldfire as the only gpio driverthat needs something custom for gpiolib.Reviewed-by: Geert Uytterhoeven Reviewed-by: Andy Shevchenko Acked-by: Bartosz Golaszewski Signed-off-by: Arnd Bergmann Reviewed-by: Linus Walleij Signed-off-by: Andy Shevchenko Reviewed-by: Vincenzo Palazzo List of files: /linux-6.15/arch/sh/Kconfig

6ca297d4 - mm: Rename GUP_GET_PTE_LOW_HIGH

Fri, 21 Oct 2022 12:51:44 +0000

mm: Rename GUP_GET_PTE_LOW_HIGHSince it no longer applies to only PTEs, rename it to PXX.Suggested-by: Linus Torvalds Signed-off-by: Peter Zijlstra (Intel) Link: https://lkml.kernel.org/r/20221022114424.776404066%40infradead.org List of files: /linux-6.15/arch/sh/Kconfig

3d923c5f - mm/mmap: drop ARCH_HAS_VM_GET_PAGE_PROT

Mon, 11 Jul 2022 07:06:00 +0000

mm/mmap: drop ARCH_HAS_VM_GET_PAGE_PROTNow all the platforms enable ARCH_HAS_GET_PAGE_PROT. They define andexport own vm_get_page_prot() whether custom or standardDECLARE_VM_GET_PAGE_PROT. Hence there is no need for default genericfallback for vm_get_page_prot(). Just drop this fallback and alsoARCH_HAS_GET_PAGE_PROT mechanism.Link: https://lkml.kernel.org/r/20220711070600.2378316-27-anshuman.khandual@arm.comSigned-off-by: Anshuman Khandual Reviewed-by: Geert Uytterhoeven Reviewed-by: Christoph Hellwig Reviewed-by: Christophe Leroy Acked-by: Geert Uytterhoeven Cc: Arnd Bergmann Cc: Brian Cain Cc: Catalin Marinas Cc: Christoph Hellwig Cc: Chris Zankel Cc: "David S. Miller" Cc: Dinh Nguyen Cc: Guo Ren Cc: Heiko Carstens Cc: Huacai Chen Cc: Ingo Molnar Cc: "James E.J. Bottomley" Cc: Jeff Dike Cc: Jonas Bonn Cc: Michael Ellerman Cc: Michal Simek Cc: Nicholas Piggin Cc: Palmer Dabbelt Cc: Paul Mackerras Cc: Paul Walmsley Cc: Richard Henderson Cc: Rich Felker Cc: Russell King Cc: Sam Ravnborg Cc: Stafford Horne Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Vasily Gorbik Cc: Vineet Gupta Cc: WANG Xuerui Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/sh/Kconfig