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author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-08-02 18:13:37 +0300 |
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committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-25 02:20:20 +0300 |
commit | 8b5989f3333717273d02ab87ba8781f72a6783ab (patch) | |
tree | 86a18cbb7b5e7a2ab7f02fcd42ffae0fcb9fc861 /arch/arm/mm/copypage-xscale.c | |
parent | ac4cfaccedac891d29560ddfb64cb5c1e710e1e1 (diff) | |
download | linux-8b5989f3333717273d02ab87ba8781f72a6783ab.tar.xz |
arm: implement the new page table range API
Add set_ptes(), update_mmu_cache_range(), flush_dcache_folio() and
flush_icache_pages(). Change the PG_dcache_clear flag from being per-page
to per-folio which makes __dma_page_dev_to_cpu() a bit more exciting.
Also add flush_cache_pages(), even though this isn't used by generic code
(yet?)
[m.szyprowski@samsung.com: fix potential endless loop in __dma_page_dev_to_cpu()]
Link: https://lkml.kernel.org/r/20230809172737.3574190-1-m.szyprowski@samsung.com
[willy@infradead.org: fix folio conversion in __dma_page_dev_to_cpu()]
Link: https://lkml.kernel.org/r/20230823191852.1556561-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20230802151406.3735276-10-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/arm/mm/copypage-xscale.c')
-rw-r--r-- | arch/arm/mm/copypage-xscale.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/mm/copypage-xscale.c b/arch/arm/mm/copypage-xscale.c index bcb485620a05..f1e29d3e8193 100644 --- a/arch/arm/mm/copypage-xscale.c +++ b/arch/arm/mm/copypage-xscale.c @@ -84,10 +84,11 @@ static void mc_copy_user_page(void *from, void *to) void xscale_mc_copy_user_highpage(struct page *to, struct page *from, unsigned long vaddr, struct vm_area_struct *vma) { + struct folio *src = page_folio(from); void *kto = kmap_atomic(to); - if (!test_and_set_bit(PG_dcache_clean, &from->flags)) - __flush_dcache_page(page_mapping_file(from), from); + if (!test_and_set_bit(PG_dcache_clean, &src->flags)) + __flush_dcache_folio(folio_flush_mapping(src), src); raw_spin_lock(&minicache_lock); |