kill __copy_from_user_nocache()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 0 insertions, 118 deletions

diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index 1f65ff6540f0..02aa7aa8b9f3 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -293,105 +293,6 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
 	return size;
 }
 
-/*
- * Non Temporal Hint version of __copy_user_zeroing_intel.  It is cache aware.
- * hyoshiok@miraclelinux.com
- */
-
-static unsigned long __copy_user_zeroing_intel_nocache(void *to,
-				const void __user *from, unsigned long size)
-{
-	int d0, d1;
-
-	__asm__ __volatile__(
-	       "        .align 2,0x90\n"
-	       "0:      movl 32(%4), %%eax\n"
-	       "        cmpl $67, %0\n"
-	       "        jbe 2f\n"
-	       "1:      movl 64(%4), %%eax\n"
-	       "        .align 2,0x90\n"
-	       "2:      movl 0(%4), %%eax\n"
-	       "21:     movl 4(%4), %%edx\n"
-	       "        movnti %%eax, 0(%3)\n"
-	       "        movnti %%edx, 4(%3)\n"
-	       "3:      movl 8(%4), %%eax\n"
-	       "31:     movl 12(%4),%%edx\n"
-	       "        movnti %%eax, 8(%3)\n"
-	       "        movnti %%edx, 12(%3)\n"
-	       "4:      movl 16(%4), %%eax\n"
-	       "41:     movl 20(%4), %%edx\n"
-	       "        movnti %%eax, 16(%3)\n"
-	       "        movnti %%edx, 20(%3)\n"
-	       "10:     movl 24(%4), %%eax\n"
-	       "51:     movl 28(%4), %%edx\n"
-	       "        movnti %%eax, 24(%3)\n"
-	       "        movnti %%edx, 28(%3)\n"
-	       "11:     movl 32(%4), %%eax\n"
-	       "61:     movl 36(%4), %%edx\n"
-	       "        movnti %%eax, 32(%3)\n"
-	       "        movnti %%edx, 36(%3)\n"
-	       "12:     movl 40(%4), %%eax\n"
-	       "71:     movl 44(%4), %%edx\n"
-	       "        movnti %%eax, 40(%3)\n"
-	       "        movnti %%edx, 44(%3)\n"
-	       "13:     movl 48(%4), %%eax\n"
-	       "81:     movl 52(%4), %%edx\n"
-	       "        movnti %%eax, 48(%3)\n"
-	       "        movnti %%edx, 52(%3)\n"
-	       "14:     movl 56(%4), %%eax\n"
-	       "91:     movl 60(%4), %%edx\n"
-	       "        movnti %%eax, 56(%3)\n"
-	       "        movnti %%edx, 60(%3)\n"
-	       "        addl $-64, %0\n"
-	       "        addl $64, %4\n"
-	       "        addl $64, %3\n"
-	       "        cmpl $63, %0\n"
-	       "        ja  0b\n"
-	       "        sfence \n"
-	       "5:      movl  %0, %%eax\n"
-	       "        shrl  $2, %0\n"
-	       "        andl $3, %%eax\n"
-	       "        cld\n"
-	       "6:      rep; movsl\n"
-	       "        movl %%eax,%0\n"
-	       "7:      rep; movsb\n"
-	       "8:\n"
-	       ".section .fixup,\"ax\"\n"
-	       "9:      lea 0(%%eax,%0,4),%0\n"
-	       "16:     pushl %0\n"
-	       "        pushl %%eax\n"
-	       "        xorl %%eax,%%eax\n"
-	       "        rep; stosb\n"
-	       "        popl %%eax\n"
-	       "        popl %0\n"
-	       "        jmp 8b\n"
-	       ".previous\n"
-	       _ASM_EXTABLE(0b,16b)
-	       _ASM_EXTABLE(1b,16b)
-	       _ASM_EXTABLE(2b,16b)
-	       _ASM_EXTABLE(21b,16b)
-	       _ASM_EXTABLE(3b,16b)
-	       _ASM_EXTABLE(31b,16b)
-	       _ASM_EXTABLE(4b,16b)
-	       _ASM_EXTABLE(41b,16b)
-	       _ASM_EXTABLE(10b,16b)
-	       _ASM_EXTABLE(51b,16b)
-	       _ASM_EXTABLE(11b,16b)
-	       _ASM_EXTABLE(61b,16b)
-	       _ASM_EXTABLE(12b,16b)
-	       _ASM_EXTABLE(71b,16b)
-	       _ASM_EXTABLE(13b,16b)
-	       _ASM_EXTABLE(81b,16b)
-	       _ASM_EXTABLE(14b,16b)
-	       _ASM_EXTABLE(91b,16b)
-	       _ASM_EXTABLE(6b,9b)
-	       _ASM_EXTABLE(7b,16b)
-	       : "=&c"(size), "=&D" (d0), "=&S" (d1)
-	       :  "1"(to), "2"(from), "0"(size)
-	       : "eax", "edx", "memory");
-	return size;
-}
-
 static unsigned long __copy_user_intel_nocache(void *to,
 				const void __user *from, unsigned long size)
 {
@@ -490,8 +391,6 @@ unsigned long __copy_user_zeroing_intel(void *to, const void __user *from,
 					unsigned long size);
 unsigned long __copy_user_intel(void __user *to, const void *from,
 					unsigned long size);
-unsigned long __copy_user_zeroing_intel_nocache(void *to,
-				const void __user *from, unsigned long size);
 #endif /* CONFIG_X86_INTEL_USERCOPY */
 
 /* Generic arbitrary sized copy.  */
@@ -607,23 +506,6 @@ unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from,
 }
 EXPORT_SYMBOL(__copy_from_user_ll_nozero);
 
-unsigned long __copy_from_user_ll_nocache(void *to, const void __user *from,
-					unsigned long n)
-{
-	stac();
-#ifdef CONFIG_X86_INTEL_USERCOPY
-	if (n > 64 && static_cpu_has(X86_FEATURE_XMM2))
-		n = __copy_user_zeroing_intel_nocache(to, from, n);
-	else
-		__copy_user_zeroing(to, from, n);
-#else
-	__copy_user_zeroing(to, from, n);
-#endif
-	clac();
-	return n;
-}
-EXPORT_SYMBOL(__copy_from_user_ll_nocache);
-
 unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *from,
 					unsigned long n)
 {