Release 4.14 arch/m32r/include/asm/cacheflush.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_M32R_CACHEFLUSH_H

#define _ASM_M32R_CACHEFLUSH_H

#include <linux/mm.h>

extern void _flush_cache_all(void);
extern void _flush_cache_copyback_all(void);

#if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)

#define flush_cache_all()			do { } while (0)

#define flush_cache_mm(mm)			do { } while (0)

#define flush_cache_dup_mm(mm)			do { } while (0)

#define flush_cache_range(vma, start, end)	do { } while (0)

#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)

#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0

#define flush_dcache_page(page)			do { } while (0)

#define flush_dcache_mmap_lock(mapping)		do { } while (0)

#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
#ifndef CONFIG_SMP

#define flush_icache_range(start, end)		_flush_cache_copyback_all()

#define flush_icache_page(vma,pg)		_flush_cache_copyback_all()

#define flush_icache_user_range(vma,pg,adr,len)	_flush_cache_copyback_all()

#define flush_cache_sigtramp(addr)		_flush_cache_copyback_all()
#else	/* CONFIG_SMP */
extern void smp_flush_cache_all(void);

#define flush_icache_range(start, end)		smp_flush_cache_all()

#define flush_icache_page(vma,pg)		smp_flush_cache_all()

#define flush_icache_user_range(vma,pg,adr,len)	smp_flush_cache_all()

#define flush_cache_sigtramp(addr)		_flush_cache_copyback_all()
#endif	/* CONFIG_SMP */
#elif defined(CONFIG_CHIP_M32102)

#define flush_cache_all()			do { } while (0)

#define flush_cache_mm(mm)			do { } while (0)

#define flush_cache_dup_mm(mm)			do { } while (0)

#define flush_cache_range(vma, start, end)	do { } while (0)

#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)

#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0

#define flush_dcache_page(page)			do { } while (0)

#define flush_dcache_mmap_lock(mapping)		do { } while (0)

#define flush_dcache_mmap_unlock(mapping)	do { } while (0)

#define flush_icache_range(start, end)		_flush_cache_all()

#define flush_icache_page(vma,pg)		_flush_cache_all()

#define flush_icache_user_range(vma,pg,adr,len)	_flush_cache_all()

#define flush_cache_sigtramp(addr)		_flush_cache_all()
#else

#define flush_cache_all()			do { } while (0)

#define flush_cache_mm(mm)			do { } while (0)

#define flush_cache_dup_mm(mm)			do { } while (0)

#define flush_cache_range(vma, start, end)	do { } while (0)

#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)

#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0

#define flush_dcache_page(page)			do { } while (0)

#define flush_dcache_mmap_lock(mapping)		do { } while (0)

#define flush_dcache_mmap_unlock(mapping)	do { } while (0)

#define flush_icache_range(start, end)		do { } while (0)

#define flush_icache_page(vma,pg)		do { } while (0)

#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)

#define flush_cache_sigtramp(addr)		do { } while (0)
#endif	/* CONFIG_CHIP_* */


#define flush_cache_vmap(start, end)	do { } while (0)

#define flush_cache_vunmap(start, end)	do { } while (0)


#define copy_to_user_page(vma, page, vaddr, dst, src, len)	\
do {                                                            \
        memcpy(dst, src, len);                                  \
        flush_icache_user_range(vma, page, vaddr, len);         \
} while (0)

#define copy_from_user_page(vma, page, vaddr, dst, src, len)	\
	memcpy(dst, src, len)

#endif /* _ASM_M32R_CACHEFLUSH_H */
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Directory: arch/m32r/include/asm

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