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Diffstat (limited to 'arch/x86/lib/clear_page_64.S')
-rw-r--r--arch/x86/lib/clear_page_64.S17
1 files changed, 7 insertions, 10 deletions
diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S
index 5e2af3a88cf5..81b1635d67de 100644
--- a/arch/x86/lib/clear_page_64.S
+++ b/arch/x86/lib/clear_page_64.S
@@ -14,20 +14,15 @@
* Zero a page.
* %rdi - page
*/
-ENTRY(clear_page)
-
- ALTERNATIVE_2 "jmp clear_page_orig", "", X86_FEATURE_REP_GOOD, \
- "jmp clear_page_c_e", X86_FEATURE_ERMS
-
+ENTRY(clear_page_rep)
movl $4096/8,%ecx
xorl %eax,%eax
rep stosq
ret
-ENDPROC(clear_page)
-EXPORT_SYMBOL(clear_page)
+ENDPROC(clear_page_rep)
+EXPORT_SYMBOL_GPL(clear_page_rep)
ENTRY(clear_page_orig)
-
xorl %eax,%eax
movl $4096/64,%ecx
.p2align 4
@@ -47,10 +42,12 @@ ENTRY(clear_page_orig)
nop
ret
ENDPROC(clear_page_orig)
+EXPORT_SYMBOL_GPL(clear_page_orig)
-ENTRY(clear_page_c_e)
+ENTRY(clear_page_erms)
movl $4096,%ecx
xorl %eax,%eax
rep stosb
ret
-ENDPROC(clear_page_c_e)
+ENDPROC(clear_page_erms)
+EXPORT_SYMBOL_GPL(clear_page_erms)