提交 ffd8221b 编写于 作者: L Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

Pull Sparc bugfix from David Miller:
 "Sparc64 AES ctr mode bug fix"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Fix FPU register corruption with AES crypto offload.
...@@ -39,6 +39,14 @@ ...@@ -39,6 +39,14 @@
297: wr %o5, FPRS_FEF, %fprs; \ 297: wr %o5, FPRS_FEF, %fprs; \
298: 298:
#define VISEntryHalfFast(fail_label) \
rd %fprs, %o5; \
andcc %o5, FPRS_FEF, %g0; \
be,pt %icc, 297f; \
nop; \
ba,a,pt %xcc, fail_label; \
297: wr %o5, FPRS_FEF, %fprs;
#define VISExitHalf \ #define VISExitHalf \
wr %o5, 0, %fprs; wr %o5, 0, %fprs;
......
...@@ -41,6 +41,10 @@ ...@@ -41,6 +41,10 @@
#endif #endif
#endif #endif
#if !defined(EX_LD) && !defined(EX_ST)
#define NON_USER_COPY
#endif
#ifndef EX_LD #ifndef EX_LD
#define EX_LD(x) x #define EX_LD(x) x
#endif #endif
...@@ -197,9 +201,13 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */ ...@@ -197,9 +201,13 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
mov EX_RETVAL(%o3), %o0 mov EX_RETVAL(%o3), %o0
.Llarge_src_unaligned: .Llarge_src_unaligned:
#ifdef NON_USER_COPY
VISEntryHalfFast(.Lmedium_vis_entry_fail)
#else
VISEntryHalf
#endif
andn %o2, 0x3f, %o4 andn %o2, 0x3f, %o4
sub %o2, %o4, %o2 sub %o2, %o4, %o2
VISEntryHalf
alignaddr %o1, %g0, %g1 alignaddr %o1, %g0, %g1
add %o1, %o4, %o1 add %o1, %o4, %o1
EX_LD(LOAD(ldd, %g1 + 0x00, %f0)) EX_LD(LOAD(ldd, %g1 + 0x00, %f0))
...@@ -240,6 +248,10 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */ ...@@ -240,6 +248,10 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
nop nop
ba,a,pt %icc, .Lmedium_unaligned ba,a,pt %icc, .Lmedium_unaligned
#ifdef NON_USER_COPY
.Lmedium_vis_entry_fail:
or %o0, %o1, %g2
#endif
.Lmedium: .Lmedium:
LOAD(prefetch, %o1 + 0x40, #n_reads_strong) LOAD(prefetch, %o1 + 0x40, #n_reads_strong)
andcc %g2, 0x7, %g0 andcc %g2, 0x7, %g0
......
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