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Blackfin: add blackfin_invalidate_entire_icache for SMP systems

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The KGDB code uses this when switching processors to make sure the icache
is in a valid state.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Sonic Zhang
2009-06-10 08:57:08 +00:00
committed by Mike Frysinger
parent 2466ac6556
commit 47e9dedb72
6 changed files with 37 additions and 4 deletions
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11
arch/blackfin/mach-common/smp.c
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@@ -468,6 +468,17 @@ void smp_icache_flush_range_others(unsigned long start, unsigned long end)
}
EXPORT_SYMBOL_GPL(smp_icache_flush_range_others);
#ifdef __ARCH_SYNC_CORE_ICACHE
void resync_core_icache(void)
{
unsigned int cpu = get_cpu();
blackfin_invalidate_entire_icache();
++per_cpu(cpu_data, cpu).icache_invld_count;
put_cpu();
}
EXPORT_SYMBOL(resync_core_icache);
#endif
#ifdef __ARCH_SYNC_CORE_DCACHE
unsigned long barrier_mask __attribute__ ((__section__(".l2.bss")));