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37443ef3f0
This paves the way for allowing individual CPUs to overload the individual flushing routines that they care about without having to depend on weak aliases. SH-4 is converted over initially, as it wires up pretty much everything. The majority of the other CPUs will simply use the default no-op implementation with their own region flushers wired up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
#ifndef __ASM_SH_CACHEFLUSH_H
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#define __ASM_SH_CACHEFLUSH_H
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#ifdef __KERNEL__
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#include <linux/mm.h>
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#include <cpu/cacheflush.h>
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#define ARCH_HAS_FLUSH_ANON_PAGE
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extern void __flush_anon_page(struct page *page, unsigned long);
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static inline void flush_anon_page(struct vm_area_struct *vma,
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struct page *page, unsigned long vmaddr)
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{
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if (boot_cpu_data.dcache.n_aliases && PageAnon(page))
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__flush_anon_page(page, vmaddr);
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}
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#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
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static inline void flush_kernel_dcache_page(struct page *page)
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{
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flush_dcache_page(page);
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}
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extern void copy_to_user_page(struct vm_area_struct *vma,
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struct page *page, unsigned long vaddr, void *dst, const void *src,
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unsigned long len);
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extern void copy_from_user_page(struct vm_area_struct *vma,
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struct page *page, unsigned long vaddr, void *dst, const void *src,
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unsigned long len);
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#define flush_cache_vmap(start, end) flush_cache_all()
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#define flush_cache_vunmap(start, end) flush_cache_all()
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#define flush_dcache_mmap_lock(mapping) do { } while (0)
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#define flush_dcache_mmap_unlock(mapping) do { } while (0)
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void kmap_coherent_init(void);
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void *kmap_coherent(struct page *page, unsigned long addr);
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void kunmap_coherent(void);
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#define PG_dcache_dirty PG_arch_1
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void cpu_cache_init(void);
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#endif /* __KERNEL__ */
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#endif /* __ASM_SH_CACHEFLUSH_H */
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