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authorH. Peter Anvin <hpa@zytor.com>2007-10-17 18:04:37 +0200
committerThomas Gleixner <tglx@inhelltoy.tec.linutronix.de>2007-10-17 20:16:12 +0200
commit6619a8fb594486363783cc4a8372e4d4ee4b913e (patch)
tree83130702b16dae3ccae5be54acd18993474ff757 /arch
parent9689ba8ad0dc27c0a2ce40eb4c0f8fb66551119c (diff)
downloadop-kernel-dev-6619a8fb594486363783cc4a8372e4d4ee4b913e.zip
op-kernel-dev-6619a8fb594486363783cc4a8372e4d4ee4b913e.tar.gz
x86: Create clflush() inline, remove hardcoded wbinvd
Create an inline function for clflush(), with the proper arguments, and use it instead of hard-coding the instruction. This also removes one instance of hard-coded wbinvd, based on a patch by Bauder de Oliveira Costa. [ tglx: arch/x86 adaptation ] Cc: Andi Kleen <andi@firstfloor.org> Cc: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/tce_64.c4
-rw-r--r--arch/x86/mm/pageattr_32.c4
-rw-r--r--arch/x86/mm/pageattr_64.c2
3 files changed, 5 insertions, 5 deletions
diff --git a/arch/x86/kernel/tce_64.c b/arch/x86/kernel/tce_64.c
index e3f2569..9e540fe 100644
--- a/arch/x86/kernel/tce_64.c
+++ b/arch/x86/kernel/tce_64.c
@@ -40,9 +40,9 @@ static inline void flush_tce(void* tceaddr)
{
/* a single tce can't cross a cache line */
if (cpu_has_clflush)
- asm volatile("clflush (%0)" :: "r" (tceaddr));
+ clflush(tceaddr);
else
- asm volatile("wbinvd":::"memory");
+ wbinvd();
}
void tce_build(struct iommu_table *tbl, unsigned long index,
diff --git a/arch/x86/mm/pageattr_32.c b/arch/x86/mm/pageattr_32.c
index 4241a74..260073c 100644
--- a/arch/x86/mm/pageattr_32.c
+++ b/arch/x86/mm/pageattr_32.c
@@ -70,10 +70,10 @@ static struct page *split_large_page(unsigned long address, pgprot_t prot,
static void cache_flush_page(struct page *p)
{
- unsigned long adr = (unsigned long)page_address(p);
+ void *adr = page_address(p);
int i;
for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
- asm volatile("clflush (%0)" :: "r" (adr + i));
+ clflush(adr+i);
}
static void flush_kernel_map(void *arg)
diff --git a/arch/x86/mm/pageattr_64.c b/arch/x86/mm/pageattr_64.c
index 93d795d..8a4f65b 100644
--- a/arch/x86/mm/pageattr_64.c
+++ b/arch/x86/mm/pageattr_64.c
@@ -65,7 +65,7 @@ static void cache_flush_page(void *adr)
{
int i;
for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
- asm volatile("clflush (%0)" :: "r" (adr + i));
+ clflush(adr+i);
}
static void flush_kernel_map(void *arg)
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