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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2006-08-22 21:15:47 +0900
committerRalf Baechle <ralf@linux-mips.org>2006-11-30 01:14:48 +0000
commit0550d9d13e02b30efa117d47fcadea450bb23d23 (patch)
tree5bfdbe50ebd06b2215fbad9388586bd4106861ec /arch
parente56798824456bd907cefe840ca127df0518942e3 (diff)
[MIPS] Remove redundant r4k_blast_icache() calls
r4k_flush_cache_all() and r4k_flush_cache_mm() case: these are noop if the CPU did not have dc_aliases. It would mean we do not need to care about icache here. r4k_flush_cache_range case: if r4k_flush_cache_mm() did not need to care about icache, it would be same for this function. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/mm/c-r4k.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index cc895dad71d..0138cb2e456 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -323,7 +323,6 @@ static void __init r4k_blast_scache_setup(void)
static inline void local_r4k_flush_cache_all(void * args)
{
r4k_blast_dcache();
- r4k_blast_icache();
}
static void r4k_flush_cache_all(void)
@@ -359,21 +358,19 @@ static void r4k___flush_cache_all(void)
static inline void local_r4k_flush_cache_range(void * args)
{
struct vm_area_struct *vma = args;
- int exec;
if (!(cpu_context(smp_processor_id(), vma->vm_mm)))
return;
- exec = vma->vm_flags & VM_EXEC;
- if (cpu_has_dc_aliases || exec)
- r4k_blast_dcache();
- if (exec)
- r4k_blast_icache();
+ r4k_blast_dcache();
}
static void r4k_flush_cache_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
+ if (!cpu_has_dc_aliases)
+ return;
+
r4k_on_each_cpu(local_r4k_flush_cache_range, vma, 1, 1);
}
@@ -385,7 +382,6 @@ static inline void local_r4k_flush_cache_mm(void * args)
return;
r4k_blast_dcache();
- r4k_blast_icache();
/*
* Kludge alert. For obscure reasons R4000SC and R4400SC go nuts if we