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[MIPS] Fix WARNING: at kernel/smp.c:290

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trap_init issues flush_icache_range(), which uses ipi functions to
get icache flushing done on all cpus. But this is done before interrupts
are enabled and caused WARN_ON messages. This changeset introduces
a new local_flush_icache_range() and uses it before interrupts (and
additional CPUs) are enabled to avoid this problem.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Thomas Bogendoerfer
2008-08-04 20:53:57 +02:00
committed by Ralf Baechle
parent 0510617b85
commit e0cee3eea7
7 changed files with 26 additions and 14 deletions
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arch/mips/mm/c-r3k.c
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@@ -320,6 +320,7 @@ void __cpuinit r3k_cache_init(void)
flush_cache_range = r3k_flush_cache_range;
flush_cache_page = r3k_flush_cache_page;
flush_icache_range = r3k_flush_icache_range;
local_flush_icache_range = r3k_flush_icache_range;
flush_cache_sigtramp = r3k_flush_cache_sigtramp;
local_flush_data_cache_page = local_r3k_flush_data_cache_page;