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authorRussell King <rmk+kernel@arm.linux.org.uk>2009-10-25 11:40:02 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-12-01 19:20:07 +0100
commit2f0b192633f1fbf253b21c90938733491549edae (patch)
treea429eaf88e591ea9674075ac6389e9a751da9806 /arch/arm/mm/flush.c
parentMerge branch 'security' of git://git.kernel.org/pub/scm/linux/kernel/git/linv... (diff)
downloadlinux-2f0b192633f1fbf253b21c90938733491549edae.tar.xz
linux-2f0b192633f1fbf253b21c90938733491549edae.zip
ARM: Avoid duplicated implementation for VIVT cache flushing
We had two copies of the wrapper code for VIVT cache flushing - one in asm/cacheflush.h and one in arch/arm/mm/flush.c. Reduce this down to one common copy. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/flush.c')
-rw-r--r--arch/arm/mm/flush.c17
1 files changed, 4 insertions, 13 deletions
diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c
index 7f294f307c83..a480f161a4bb 100644
--- a/arch/arm/mm/flush.c
+++ b/arch/arm/mm/flush.c
@@ -41,8 +41,7 @@ static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr)
void flush_cache_mm(struct mm_struct *mm)
{
if (cache_is_vivt()) {
- if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm)))
- __cpuc_flush_user_all();
+ vivt_flush_cache_mm(mm);
return;
}
@@ -59,9 +58,7 @@ void flush_cache_mm(struct mm_struct *mm)
void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end)
{
if (cache_is_vivt()) {
- if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm)))
- __cpuc_flush_user_range(start & PAGE_MASK, PAGE_ALIGN(end),
- vma->vm_flags);
+ vivt_flush_cache_range(vma, start, end);
return;
}
@@ -78,10 +75,7 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned
void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn)
{
if (cache_is_vivt()) {
- if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) {
- unsigned long addr = user_addr & PAGE_MASK;
- __cpuc_flush_user_range(addr, addr + PAGE_SIZE, vma->vm_flags);
- }
+ vivt_flush_cache_page(vma, user_addr, pfn);
return;
}
@@ -94,10 +88,7 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
unsigned long len, int write)
{
if (cache_is_vivt()) {
- if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) {
- unsigned long addr = (unsigned long)kaddr;
- __cpuc_coherent_kern_range(addr, addr + len);
- }
+ vivt_flush_ptrace_access(vma, page, uaddr, kaddr, len, write);
return;
}