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Diffstat (limited to 'arch/sparc/lib/NG4memcpy.S')
-rw-r--r--arch/sparc/lib/NG4memcpy.S14
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/sparc/lib/NG4memcpy.S b/arch/sparc/lib/NG4memcpy.S
index 9cf2ee01cee3..140527a20e7d 100644
--- a/arch/sparc/lib/NG4memcpy.S
+++ b/arch/sparc/lib/NG4memcpy.S
@@ -41,6 +41,10 @@
#endif
#endif
+#if !defined(EX_LD) && !defined(EX_ST)
+#define NON_USER_COPY
+#endif
+
#ifndef EX_LD
#define EX_LD(x) x
#endif
@@ -197,9 +201,13 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
mov EX_RETVAL(%o3), %o0
.Llarge_src_unaligned:
+#ifdef NON_USER_COPY
+ VISEntryHalfFast(.Lmedium_vis_entry_fail)
+#else
+ VISEntryHalf
+#endif
andn %o2, 0x3f, %o4
sub %o2, %o4, %o2
- VISEntryHalf
alignaddr %o1, %g0, %g1
add %o1, %o4, %o1
EX_LD(LOAD(ldd, %g1 + 0x00, %f0))
@@ -240,6 +248,10 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
nop
ba,a,pt %icc, .Lmedium_unaligned
+#ifdef NON_USER_COPY
+.Lmedium_vis_entry_fail:
+ or %o0, %o1, %g2
+#endif
.Lmedium:
LOAD(prefetch, %o1 + 0x40, #n_reads_strong)
andcc %g2, 0x7, %g0