user/sven/linux.git/arch/microblaze/include/asm, branch v5.5

microblaze: use pgtable-nopmd instead of 4level-fixup

2019-12-05T03:44:15Z

microblaze has only two-level page tables and can use pgtable-nopmd and folding of the upper layers. Replace usage of include/asm-generic/4level-fixup.h and explicit definition of __PAGETABLE_PMD_FOLDED in microblaze with include/asm-generic/pgtable-nopmd.h and adjust page table manipulation macros and functions accordingly. Link: http://lkml.kernel.org/r/1572938135-31886-7-git-send-email-rppt@kernel.org Signed-off-by: Mike Rapoport Cc: Anatoly Pugachev 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: Russell King Cc: Sam Creasey Cc: Vincent Chen Cc: Vineet Gupta Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge tag 'ioremap-5.5' of git://git.infradead.org/users/hch/ioremap

2019-11-28T18:57:12Z

Pull generic ioremap support from Christoph Hellwig: "This adds the remaining bits for an entirely generic ioremap and iounmap to lib/ioremap.c. To facilitate that, it cleans up the giant mess of weird ioremap variants we had with no users outside the arch code. For now just the three newest ports use the code, but there is more than a handful others that can be converted without too much work. Summary: - clean up various obsolete ioremap and iounmap variants - add a new generic ioremap implementation and switch csky, nds32 and riscv over to it" * tag 'ioremap-5.5' of git://git.infradead.org/users/hch/ioremap: (21 commits) nds32: use generic ioremap csky: use generic ioremap csky: remove ioremap_cache riscv: use the generic ioremap code lib: provide a simple generic ioremap implementation sh: remove __iounmap nios2: remove __iounmap hexagon: remove __iounmap m68k: rename __iounmap and mark it static arch: rely on asm-generic/io.h for default ioremap_* definitions asm-generic: don't provide ioremap for CONFIG_MMU asm-generic: ioremap_uc should behave the same with and without MMU xtensa: clean up ioremap x86: Clean up ioremap() parisc: remove __ioremap nios2: remove __ioremap alpha: remove the unused __ioremap wrapper hexagon: clean up ioremap ia64: rename ioremap_nocache to ioremap_uc unicore32: remove ioremap_cached ...

arch: rely on asm-generic/io.h for default ioremap_* definitions

2019-11-11T20:18:19Z

Various architectures that use asm-generic/io.h still defined their own default versions of ioremap_nocache, ioremap_wt and ioremap_wc that point back to plain ioremap directly or indirectly. Remove these definitions and rely on asm-generic/io.h instead. For this to work the backup ioremap_* defintions needs to be changed to purely cpp macros instea of inlines to cover for architectures like openrisc that only define ioremap after including . Signed-off-by: Christoph Hellwig Reviewed-by: Arnd Bergmann Reviewed-by: Palmer Dabbelt

microblaze: Enable SPARSE_IRQ

2019-10-25T06:15:15Z

Enabling SPARSE_IRQ to use dynamically allocated irq descriptors. Signed-off-by: Mubin Sayyed Signed-off-by: Michal Simek

Merge branch 'akpm' (patches from Andrew)

2019-09-24T23:10:23Z

Merge updates from Andrew Morton: - a few hot fixes - ocfs2 updates - almost all of -mm (slab-generic, slab, slub, kmemleak, kasan, cleanups, debug, pagecache, memcg, gup, pagemap, memory-hotplug, sparsemem, vmalloc, initialization, z3fold, compaction, mempolicy, oom-kill, hugetlb, migration, thp, mmap, madvise, shmem, zswap, zsmalloc) * emailed patches from Andrew Morton : (132 commits) mm/zsmalloc.c: fix a -Wunused-function warning zswap: do not map same object twice zswap: use movable memory if zpool support allocate movable memory zpool: add malloc_support_movable to zpool_driver shmem: fix obsolete comment in shmem_getpage_gfp() mm/madvise: reduce code duplication in error handling paths mm: mmap: increase sockets maximum memory size pgoff for 32bits mm/mmap.c: refine find_vma_prev() with rb_last() riscv: make mmap allocation top-down by default mips: use generic mmap top-down layout and brk randomization mips: replace arch specific way to determine 32bit task with generic version mips: adjust brk randomization offset to fit generic version mips: use STACK_TOP when computing mmap base address mips: properly account for stack randomization and stack guard gap arm: use generic mmap top-down layout and brk randomization arm: use STACK_TOP when computing mmap base address arm: properly account for stack randomization and stack guard gap arm64, mm: make randomization selected by generic topdown mmap layout arm64, mm: move generic mmap layout functions to mm arm64: consider stack randomization for mmap base only when necessary ...

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

microblaze: switch to generic version of pte allocation

2019-09-24T22:54:09Z

The microblaze implementation of pte_alloc_one() has a provision to allocated PTEs from high memory, but neither CONFIG_HIGHPTE nor pte_map*() versions for suitable for HIGHPTE are defined. Except that, microblaze version of pte_alloc_one() is identical to the generic one as well as the implementations of pte_free() and pte_free_kernel(). Switch microblaze to use the generic versions of these functions. Also remove pte_free_slow() that is not referenced anywhere in the code. Link: http://lkml.kernel.org/r/1565690952-32158-1-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport Acked-by: Mark Rutland Cc: Michal Simek 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

Merge tag 'microblaze-v5.4-rc1' of git://git.monstr.eu/linux-2.6-microblaze

2019-09-24T19:49:47Z

Pull Microblaze updates from Michal Simek: - clean up reset gpio handler - defconfig updates - add support for 8 byte get_user() - switch to generic dma code * tag 'microblaze-v5.4-rc1' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Switch to standard restart handler microblaze: defconfig synchronization microblaze: Enable Xilinx AXI emac driver by default arch/microblaze: support get_user() of size 8 bytes microblaze: remove ioremap_fullcache microblaze: use the generic dma coherent remap allocator microblaze/nommu: use the generic uncached segment support

arch/microblaze: support get_user() of size 8 bytes

2019-09-18T07:44:33Z

arch/microblaze/ is missing support for get_user() of size 8 bytes, so add it by using __copy_from_user(). While there, also drop a lot of the code duplication. Fixes these build errors: drivers/infiniband/core/uverbs_main.o: In function `ib_uverbs_write': drivers/infiniband/core/.tmp_gl_uverbs_main.o:(.text+0x13a4): undefined reference to `__user_bad' drivers/android/binder.o: In function `binder_thread_write': drivers/android/.tmp_gl_binder.o:(.text+0xda6c): undefined reference to `__user_bad' drivers/android/.tmp_gl_binder.o:(.text+0xda98): undefined reference to `__user_bad' drivers/android/.tmp_gl_binder.o:(.text+0xdf10): undefined reference to `__user_bad' drivers/android/.tmp_gl_binder.o:(.text+0xe498): undefined reference to `__user_bad' drivers/android/binder.o:drivers/android/.tmp_gl_binder.o:(.text+0xea78): more undefined references to `__user_bad' follow 'make allmodconfig' now builds successfully for arch/microblaze/. Fixes: 538722ca3b76 ("microblaze: fix get_user/put_user side-effects") Reported-by: kbuild test robot Signed-off-by: Randy Dunlap Acked-by: Linus Torvalds Cc: Al Viro Cc: Steven J. Magnani Cc: Michal Simek Cc: Jason Gunthorpe Cc: Leon Romanovsky Cc: Andrew Morton Cc: Doug Ledford Signed-off-by: Michal Simek