kernel/linux.git/arch/nds32/include/asm/cacheflush.h, branch linux-5.9.y

mm: rename flush_icache_user_range to flush_icache_user_page

2020-06-08T18:05:58+00:00

The function currently known as flush_icache_user_range only operates on a single page. Rename it to flush_icache_user_page as we'll need the name flush_icache_user_range for something else soon. Signed-off-by: Christoph Hellwig Signed-off-by: Andrew Morton Acked-by: Geert Uytterhoeven Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Tony Luck Cc: Fenghua Yu Cc: Geert Uytterhoeven Cc: Greentime Hu Cc: Vincent Chen Cc: Jonas Bonn Cc: Stefan Kristiansson Cc: Stafford Horne Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Albert Ou Cc: Arnd Bergmann Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Arnaldo Carvalho de Melo Cc: Mark Rutland Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Namhyung Kim Link: http://lkml.kernel.org/r/20200515143646.3857579-20-hch@lst.de Signed-off-by: Linus Torvalds

asm-generic/nds32: don't redefine cacheflush primitives

2019-12-30T10:18:43+00:00

The commit c296d4dc13ae ("asm-generic: fix a compilation warning") changed asm-generic/cachflush.h to use static inlines instead of macros and as a result the nds32 build with CONFIG_CPU_CACHE_ALIASING=n fails: CC init/main.o In file included from arch/nds32/include/asm/cacheflush.h:43, from include/linux/highmem.h:12, from include/linux/pagemap.h:11, from include/linux/blkdev.h:16, from include/linux/blk-cgroup.h:23, from include/linux/writeback.h:14, from init/main.c:44: include/asm-generic/cacheflush.h:50:20: error: static declaration of 'flush_icache_range' follows non-static declaration static inline void flush_icache_range(unsigned long start, unsigned long end) ^~~~~~~~~~~~~~~~~~ In file included from include/linux/highmem.h:12, from include/linux/pagemap.h:11, from include/linux/blkdev.h:16, from include/linux/blk-cgroup.h:23, from include/linux/writeback.h:14, from init/main.c:44: arch/nds32/include/asm/cacheflush.h:11:6: note: previous declaration of 'flush_icache_range' was here void flush_icache_range(unsigned long start, unsigned long end); ^~~~~~~~~~~~~~~~~~ Surround the inline functions in asm-generic/cacheflush.h by ifdef's so that architectures could override them and add the required overrides to nds32. Fixes: c296d4dc13ae ("asm-generic: fix a compilation warning") Link: https://lore.kernel.org/lkml/201912212139.yptX8CsV%25lkp@intel.com/ Reported-by: kbuild test robot Signed-off-by: Mike Rapoport Reviewed-by: Greentime Hu Signed-off-by: Arnd Bergmann

nds32: Use the correct style for SPDX License Identifier

2019-05-07T09:52:09+00:00

This patch corrects the SPDX License Identifier style in the nds32 Hardware Architecture related files. Suggested-by: Joe Perches Signed-off-by: Nishad Kamdar Acked-by: Greentime Hu Signed-off-by: Greentime Hu

nds32: To implement these icache invalidation APIs since nds32 cores don't snoop

2018-07-03T03:11:56+00:00

data cache. This issue is found by Guo Ren. Based on the Documentation/core-api/cachetlb.rst and it says: "Any necessary cache flushing or other coherency operations that need to occur should happen here. If the processor's instruction cache does not snoop cpu stores, it is very likely that you will need to flush the instruction cache for copy_to_user_page()." "If the icache does not snoop stores then this routine(flush_icache_range) will need to flush it." Signed-off-by: Guo Ren Signed-off-by: Greentime Hu

nds32: Fix xfs_buf built failed by export invalidate_kernel_vmap_range and flush_kernel_vmap_range

2018-05-23T05:26:20+00:00

It broke the 'allmodconfig' build. fs/xfs/xfs_buf.c: In function 'xfs_buf_bio_end_io': fs/xfs/xfs_buf.c:1242:3: error: implicit declaration of function 'invalidate_kernel_vmap_range' [-Werror=implicit-function-declaration] invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/xfs/xfs_buf.c: In function 'xfs_buf_ioapply_map': fs/xfs/xfs_buf.c:1312:4: error: implicit declaration of function 'flush_kernel_vmap_range' [-Werror=implicit-function-declaration] flush_kernel_vmap_range(bp->b_addr, ^~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Greentime Hu Acked-by: Arnd Bergmann

page cache: use xa_lock

2018-04-11T17:28:39+00:00

Remove the address_space ->tree_lock and use the xa_lock newly added to the radix_tree_root. Rename the address_space ->page_tree to ->i_pages, since we don't really care that it's a tree. [willy@infradead.org: fix nds32, fs/dax.c] Link: http://lkml.kernel.org/r/20180406145415.GB20605@bombadil.infradead.orgLink: http://lkml.kernel.org/r/20180313132639.17387-9-willy@infradead.org Signed-off-by: Matthew Wilcox Acked-by: Jeff Layton Cc: Darrick J. Wong Cc: Dave Chinner Cc: Ryusuke Konishi Cc: Will Deacon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

nds32: Cache and TLB routines

2018-02-22T02:44:32+00:00

This patch contains cache and TLB maintenance functions. Signed-off-by: Vincent Chen Signed-off-by: Greentime Hu Acked-by: Arnd Bergmann