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mm: rationalise flush_icache_pages() and flush_icache_page()

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Move the default (no-op) implementation of flush_icache_pages() to
<linux/cacheflush.h> from <asm-generic/cacheflush.h>.  Remove the
flush_icache_page() wrapper from each architecture into
<linux/cacheflush.h>.

Link: https://lkml.kernel.org/r/20230802151406.3735276-32-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2023-08-02 16:13:59 +01:00 • committed by Andrew Morton
parent 29269ad90b
commit 203b7b6aad
17 changed files with 14 additions and 56 deletions
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9
include/linux/cacheflush.h
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@ -17,4 +17,13 @@ static inline void flush_dcache_folio(struct folio *folio)
#define flush_dcache_folio flush_dcache_folio
#endif /* ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE */
#ifndef flush_icache_pages
static inline void flush_icache_pages(struct vm_area_struct *vma,
struct page *page, unsigned int nr)
{
}
#endif
#define flush_icache_page(vma, page) flush_icache_pages(vma, page, 1)
#endif /* _LINUX_CACHEFLUSH_H */