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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
arm64: Remove __flush_dcache_page()
This function is only used in __sync_icache_dcache(), so remove it and
call __flush_dcache_area() directly. The flush_icache_user_range()
function is not used in the arm64 kernel.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Will Deacon <will.deacon@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
+1
-10
-3
arch/arm64/include/asm/cacheflush.h
-3
arch/arm64/include/asm/cacheflush.h
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#define flush_dcache_mmap_unlock(mapping) \
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spin_unlock_irq(&(mapping)->tree_lock)
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-
#define flush_icache_user_range(vma,page,addr,len) \
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flush_dcache_page(page)
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-
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/*
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* We don't appear to need to do anything here. In fact, if we did, we'd
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* duplicate cache flushing elsewhere performed by flush_dcache_page().
+1
-6
arch/arm64/mm/flush.c
+1
-6
arch/arm64/mm/flush.c
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#endif
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}
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-
void __flush_dcache_page(struct page *page)
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-
{
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__flush_dcache_area(page_address(page), PAGE_SIZE);
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-
}
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-
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void __sync_icache_dcache(pte_t pte, unsigned long addr)
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{
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struct page *page = pte_page(pte);
···
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return;
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if (!test_and_set_bit(PG_dcache_clean, &page->flags)) {
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-
__flush_dcache_page(page);
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+
__flush_dcache_area(page_address(page), PAGE_SIZE);
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__flush_icache_all();
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} else if (icache_is_aivivt()) {
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__flush_icache_all();