The patch titled
x86_64: use wbinvd() macro instead of raw inline assembly in .c files
has been added to the -mm tree. Its filename is
x86_64-use-wbinvd-macro-instead-of-raw-inline-assembly-in-c-files.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: x86_64: use wbinvd() macro instead of raw inline assembly in .c files
From: Glauber de Oliveira Costa <gcosta@xxxxxxxxxx>
This patch uses the already-existant wbinvd() macro to replace
raw assembly to perform this very same task in some .c files
Signed-off-by: Glauber de Oliveira Costa <gcosta@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86_64/kernel/tce.c | 2 +-
arch/x86_64/mm/pageattr.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff -puN arch/x86_64/kernel/tce.c~x86_64-use-wbinvd-macro-instead-of-raw-inline-assembly-in-c-files arch/x86_64/kernel/tce.c
--- a/arch/x86_64/kernel/tce.c~x86_64-use-wbinvd-macro-instead-of-raw-inline-assembly-in-c-files
+++ a/arch/x86_64/kernel/tce.c
@@ -42,7 +42,7 @@ static inline void flush_tce(void* tcead
if (cpu_has_clflush)
asm volatile("clflush (%0)" :: "r" (tceaddr));
else
- asm volatile("wbinvd":::"memory");
+ wbinvd();
}
void tce_build(struct iommu_table *tbl, unsigned long index,
diff -puN arch/x86_64/mm/pageattr.c~x86_64-use-wbinvd-macro-instead-of-raw-inline-assembly-in-c-files arch/x86_64/mm/pageattr.c
--- a/arch/x86_64/mm/pageattr.c~x86_64-use-wbinvd-macro-instead-of-raw-inline-assembly-in-c-files
+++ a/arch/x86_64/mm/pageattr.c
@@ -76,7 +76,7 @@ static void flush_kernel_map(void *arg)
/* When clflush is available always use it because it is
much cheaper than WBINVD. */
if (!cpu_has_clflush)
- asm volatile("wbinvd" ::: "memory");
+ wbinvd();
else list_for_each_entry(pg, l, lru) {
void *adr = page_address(pg);
cache_flush_page(adr);
_
Patches currently in -mm which might be from gcosta@xxxxxxxxxx are
x86_64-use-wbinvd-macro-instead-of-raw-inline-assembly-in-c-files.patch
-
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