linux/arch/alpha/include/asm, branch v5.6

Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2020-01-28T17:03:40Z

Pull EFI updates from Ingo Molnar: "The main changes in this cycle were: - Cleanup of the GOP [graphics output] handling code in the EFI stub - Complete refactoring of the mixed mode handling in the x86 EFI stub - Overhaul of the x86 EFI boot/runtime code - Increase robustness for mixed mode code - Add the ability to disable DMA at the root port level in the EFI stub - Get rid of RWX mappings in the EFI memory map and page tables, where possible - Move the support code for the old EFI memory mapping style into its only user, the SGI UV1+ support code. - plus misc fixes, updates, smaller cleanups. ... and due to interactions with the RWX changes, another round of PAT cleanups make a guest appearance via the EFI tree - with no side effects intended" * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (75 commits) efi/x86: Disable instrumentation in the EFI runtime handling code efi/libstub/x86: Fix EFI server boot failure efi/x86: Disallow efi=old_map in mixed mode x86/boot/compressed: Relax sed symbol type regex for LLVM ld.lld efi/x86: avoid KASAN false positives when accessing the 1: 1 mapping efi: Fix handling of multiple efi_fake_mem= entries efi: Fix efi_memmap_alloc() leaks efi: Add tracking for dynamically allocated memmaps efi: Add a flags parameter to efi_memory_map efi: Fix comment for efi_mem_type() wrt absent physical addresses efi/arm: Defer probe of PCIe backed efifb on DT systems efi/x86: Limit EFI old memory map to SGI UV machines efi/x86: Avoid RWX mappings for all of DRAM efi/x86: Don't map the entire kernel text RW for mixed mode x86/mm: Fix NX bit clearing issue in kernel_map_pages_in_pgd efi/libstub/x86: Fix unused-variable warning efi/libstub/x86: Use mandatory 16-byte stack alignment in mixed mode efi/libstub/x86: Use const attribute for efi_is_64bit() efi: Allow disabling PCI busmastering on bridges during boot efi/x86: Allow translating 64-bit arguments for mixed mode calls ...

remove ioremap_nocache and devm_ioremap_nocache

2020-01-06T08:45:59Z

ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig Acked-by: Arnd Bergmann

mm/vmalloc: Add empty headers and use them from

2019-12-10T09:12:55Z

In the x86 MM code we'd like to untangle various types of historic header dependency spaghetti, but for this we'd need to pass to the generic vmalloc code various vmalloc related defines that customarily come via the low level arch header. Signed-off-by: Ingo Molnar

alpha: use pgtable-nopud instead of 4level-fixup

2019-12-05T03:44:14Z

Patch series "mm: remove __ARCH_HAS_4LEVEL_HACK", v13. These patches convert several architectures to use page table folding and remove __ARCH_HAS_4LEVEL_HACK along with include/asm-generic/4level-fixup.h. For the nommu configurations the folding is already implemented by the generic code so the only change was to use the appropriate header file. As for the rest, the changes are mostly about mechanical replacement of pgd accessors with pud/pmd ones and the addition of higher levels to page table traversals. With Vineet's patches from "elide extraneous generated code for folded p4d/pud/pmd" series [1] there is a small shrink of the kernel size of about -0.01% for the defconfig builds. This patch (of 13): It is not likely alpha will have 5-level page tables. Replace usage of include/asm-generic/4level-fixup.h and implied __ARCH_HAS_4LEVEL_HACK with include/asm-generic/pgtable-nopud.h and adjust page table manipulation macros and functions accordingly. Link: http://lkml.kernel.org/r/1572938135-31886-2-git-send-email-rppt@kernel.org Signed-off-by: Mike Rapoport Cc: Anton Ivanov Cc: Arnd Bergmann Cc: "David S. Miller" Cc: Geert Uytterhoeven Cc: Greentime Hu Cc: Greg Ungerer Cc: Helge Deller Cc: "James E.J. Bottomley" Cc: Jeff Dike Cc: "Kirill A. Shutemov" Cc: Mark Salter Cc: Matt Turner Cc: Michal Simek Cc: Peter Rosin Cc: Richard Weinberger Cc: Rolf Eike Beer Cc: Russell King Cc: Sam Creasey Cc: Vincent Chen Cc: Vineet Gupta Cc: Anatoly Pugachev Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

alpha: remove the unused __ioremap wrapper

2019-11-11T16:19:49Z

No need for the additional namespace pollution. Signed-off-by: Christoph Hellwig

mm: consolidate pgtable_cache_init() and pgd_cache_init()

2019-09-24T22:54:09Z

Both pgtable_cache_init() and pgd_cache_init() are used to initialize kmem cache for page table allocations on several architectures that do not use PAGE_SIZE tables for one or more levels of the page table hierarchy. Most architectures do not implement these functions and use __weak default NOP implementation of pgd_cache_init(). Since there is no such default for pgtable_cache_init(), its empty stub is duplicated among most architectures. Rename the definitions of pgd_cache_init() to pgtable_cache_init() and drop empty stubs of pgtable_cache_init(). Link: http://lkml.kernel.org/r/1566457046-22637-1-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport Acked-by: Will Deacon [arm64] Acked-by: Thomas Gleixner [x86] Cc: Catalin Marinas Cc: Ingo Molnar Cc: Borislav Petkov Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: remove quicklist page table caches

2019-09-24T22:54:09Z

Patch series "mm: remove quicklist page table caches". A while ago Nicholas proposed to remove quicklist page table caches [1]. I've rebased his patch on the curren upstream and switched ia64 and sh to use generic versions of PTE allocation. [1] https://lore.kernel.org/linux-mm/20190711030339.20892-1-npiggin@gmail.com This patch (of 3): Remove page table allocator "quicklists". These have been around for a long time, but have not got much traction in the last decade and are only used on ia64 and sh architectures. The numbers in the initial commit look interesting but probably don't apply anymore. If anybody wants to resurrect this it's in the git history, but it's unhelpful to have this code and divergent allocator behaviour for minor archs. Also it might be better to instead make more general improvements to page allocator if this is still so slow. Link: http://lkml.kernel.org/r/1565250728-21721-2-git-send-email-rppt@linux.ibm.com Signed-off-by: Nicholas Piggin Signed-off-by: Mike Rapoport Cc: Tony Luck Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

arch/*: remove unused isa_page_to_bus()

2019-07-17T02:23:22Z

isa_page_to_bus() is deprecated and is no longer used anywhere. Remove it entirely. Link: http://lkml.kernel.org/r/20190613161155.16946-1-steve@sk2.org Signed-off-by: Stephen Kitt Acked-by: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

alpha: switch to generic version of pte allocation

2019-07-12T18:05:45Z

alpha allocates PTE pages with __get_free_page() and uses GFP_KERNEL | __GFP_ZERO for the allocations. Switch it to the generic version that does exactly the same thing for the kernel page tables and adds __GFP_ACCOUNT for the user PTEs. The alpha pte_free() and pte_free_kernel() versions are identical to the generic ones and can be simply dropped. Link: http://lkml.kernel.org/r/1557296232-15361-3-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport Cc: Albert Ou Cc: Anshuman Khandual Cc: Anton Ivanov Cc: Arnd Bergmann Cc: Catalin Marinas Cc: Geert Uytterhoeven Cc: Greentime Hu Cc: Guan Xuetao Cc: Guo Ren Cc: Guo Ren Cc: Helge Deller Cc: Ley Foon Tan Cc: Matthew Wilcox Cc: Matt Turner Cc: Michael Ellerman Cc: Michal Hocko Cc: Palmer Dabbelt Cc: Paul Burton Cc: Ralf Baechle Cc: Richard Kuo Cc: Richard Weinberger Cc: Russell King Cc: Sam Creasey Cc: Vincent Chen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge tag 'v5.2-rc5' into locking/core, to pick up fixes

2019-06-17T10:06:34Z

Signed-off-by: Ingo Molnar