lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

6
arch/mips/mm/tlbex.c
View File

@@ -1273,10 +1273,10 @@ void __cpuinit build_tlb_refill_handler(void)
void __cpuinit flush_tlb_handlers(void)
{
flush_icache_range((unsigned long)handle_tlbl,
local_flush_icache_range((unsigned long)handle_tlbl,
(unsigned long)handle_tlbl + sizeof(handle_tlbl));
flush_icache_range((unsigned long)handle_tlbs,
local_flush_icache_range((unsigned long)handle_tlbs,
(unsigned long)handle_tlbs + sizeof(handle_tlbs));
flush_icache_range((unsigned long)handle_tlbm,
local_flush_icache_range((unsigned long)handle_tlbm,
(unsigned long)handle_tlbm + sizeof(handle_tlbm));
}