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linux/arch/blackfin/kernel/bfin_ksyms.c
Mike Frysinger 5d89137a17 Blackfin: fix data cache flushing when doing icache flushing
Make sure we flush all data caches and their write buffers before flushing
icache, otherwise random edge cases could crop up where stale data is read
into icache from external memory.  As fallout, punt the combined icache +
dcache flush function since we cannot safely do them back to back -- the
SSYNC is needed between the dcache flush and the icache flush.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-06-12 06:03:45 -04:00

106 lines
3.1 KiB
C

/*
* arch/blackfin/kernel/bfin_ksyms.c - exports for random symbols
*
* Copyright 2004-2008 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include <linux/module.h>
#include <linux/uaccess.h>
#include <asm/cacheflush.h>
/* Allow people to have their own Blackfin exception handler in a module */
EXPORT_SYMBOL(bfin_return_from_exception);
/* All the Blackfin cache functions: mach-common/cache.S */
EXPORT_SYMBOL(blackfin_dcache_invalidate_range);
EXPORT_SYMBOL(blackfin_icache_flush_range);
EXPORT_SYMBOL(blackfin_dcache_flush_range);
EXPORT_SYMBOL(blackfin_dflush_page);
/* The following are special because they're not called
* explicitly (the C compiler generates them). Fortunately,
* their interface isn't gonna change any time soon now, so
* it's OK to leave it out of version control.
*/
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(memcmp);
EXPORT_SYMBOL(memmove);
EXPORT_SYMBOL(memchr);
/*
* libgcc functions - functions that are used internally by the
* compiler... (prototypes are not correct though, but that
* doesn't really matter since they're not versioned).
*/
extern void __ashldi3(void);
extern void __ashrdi3(void);
extern void __smulsi3_highpart(void);
extern void __umulsi3_highpart(void);
extern void __divsi3(void);
extern void __lshrdi3(void);
extern void __modsi3(void);
extern void __muldi3(void);
extern void __udivsi3(void);
extern void __umodsi3(void);
EXPORT_SYMBOL(__ashldi3);
EXPORT_SYMBOL(__ashrdi3);
EXPORT_SYMBOL(__umulsi3_highpart);
EXPORT_SYMBOL(__smulsi3_highpart);
EXPORT_SYMBOL(__divsi3);
EXPORT_SYMBOL(__lshrdi3);
EXPORT_SYMBOL(__modsi3);
EXPORT_SYMBOL(__muldi3);
EXPORT_SYMBOL(__udivsi3);
EXPORT_SYMBOL(__umodsi3);
/* Input/output symbols: lib/{in,out}s.S */
EXPORT_SYMBOL(outsb);
EXPORT_SYMBOL(insb);
EXPORT_SYMBOL(outsw);
EXPORT_SYMBOL(outsw_8);
EXPORT_SYMBOL(insw);
EXPORT_SYMBOL(insw_8);
EXPORT_SYMBOL(outsl);
EXPORT_SYMBOL(insl);
EXPORT_SYMBOL(insl_16);
#ifdef CONFIG_SMP
EXPORT_SYMBOL(__raw_atomic_update_asm);
EXPORT_SYMBOL(__raw_atomic_clear_asm);
EXPORT_SYMBOL(__raw_atomic_set_asm);
EXPORT_SYMBOL(__raw_atomic_xor_asm);
EXPORT_SYMBOL(__raw_atomic_test_asm);
EXPORT_SYMBOL(__raw_xchg_1_asm);
EXPORT_SYMBOL(__raw_xchg_2_asm);
EXPORT_SYMBOL(__raw_xchg_4_asm);
EXPORT_SYMBOL(__raw_cmpxchg_1_asm);
EXPORT_SYMBOL(__raw_cmpxchg_2_asm);
EXPORT_SYMBOL(__raw_cmpxchg_4_asm);
EXPORT_SYMBOL(__raw_spin_is_locked_asm);
EXPORT_SYMBOL(__raw_spin_lock_asm);
EXPORT_SYMBOL(__raw_spin_trylock_asm);
EXPORT_SYMBOL(__raw_spin_unlock_asm);
EXPORT_SYMBOL(__raw_read_lock_asm);
EXPORT_SYMBOL(__raw_read_trylock_asm);
EXPORT_SYMBOL(__raw_read_unlock_asm);
EXPORT_SYMBOL(__raw_write_lock_asm);
EXPORT_SYMBOL(__raw_write_trylock_asm);
EXPORT_SYMBOL(__raw_write_unlock_asm);
EXPORT_SYMBOL(__raw_bit_set_asm);
EXPORT_SYMBOL(__raw_bit_clear_asm);
EXPORT_SYMBOL(__raw_bit_toggle_asm);
EXPORT_SYMBOL(__raw_bit_test_asm);
EXPORT_SYMBOL(__raw_bit_test_set_asm);
EXPORT_SYMBOL(__raw_bit_test_clear_asm);
EXPORT_SYMBOL(__raw_bit_test_toggle_asm);
EXPORT_SYMBOL(__raw_uncached_fetch_asm);
#ifdef __ARCH_SYNC_CORE_DCACHE
EXPORT_SYMBOL(__raw_smp_mark_barrier_asm);
EXPORT_SYMBOL(__raw_smp_check_barrier_asm);
#endif
#endif