diff options
| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-11 10:30:41 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:12:20 -0800 |
| commit | 0d4bc95b9c205a7374afbe93b38d9c2757a45862 (patch) | |
| tree | e43b03a266da9786355941246b77f30058e7058d /arch/sparc64/lib/NGmemcpy.S | |
| parent | e92b92571c85dfa1cdc56e88566134c51ae1d12b (diff) | |
[SPARC64]: Fix some Niagara memcpy() bugs.
We need to restore the %asi register properly.
For the kernel this means get_fs(), for user this
means ASI_PNF.
Also, NGcopy_to_user.S was including U3memcpy.S instead
of NGmemcpy.S, oops :-)
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/lib/NGmemcpy.S')
| -rw-r--r-- | arch/sparc64/lib/NGmemcpy.S | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/sparc64/lib/NGmemcpy.S b/arch/sparc64/lib/NGmemcpy.S index a39aa3bd434..8e522b3dc09 100644 --- a/arch/sparc64/lib/NGmemcpy.S +++ b/arch/sparc64/lib/NGmemcpy.S @@ -5,11 +5,15 @@ #ifdef __KERNEL__ #include <asm/asi.h> +#include <asm/thread_info.h> #define GLOBAL_SPARE %g7 -#define RESTORE_ASI wr %g0, ASI_AIUS, %asi +#define RESTORE_ASI(TMP) \ + ldub [%g6 + TI_CURRENT_DS], TMP; \ + wr TMP, 0x0, %asi; #else #define GLOBAL_SPARE %g5 -#define RESTORE_ASI +#define RESTORE_ASI(TMP) \ + wr %g0, ASI_PNF, %asi #endif #ifndef STORE_ASI @@ -246,7 +250,7 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */ /* %o2 contains any final bytes still needed to be copied * over. If anything is left, we copy it one byte at a time. */ - RESTORE_ASI + RESTORE_ASI(%o3) brz,pt %o2, 85f sub %o0, %o1, %o3 ba,a,pt %XCC, 90f |