diff options
Diffstat (limited to 'kernel/arch/sparc/lib/GENcopy_from_user.S')
| -rw-r--r-- | kernel/arch/sparc/lib/GENcopy_from_user.S | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/kernel/arch/sparc/lib/GENcopy_from_user.S b/kernel/arch/sparc/lib/GENcopy_from_user.S new file mode 100644 index 000000000..b7d0bd6b1 --- /dev/null +++ b/kernel/arch/sparc/lib/GENcopy_from_user.S @@ -0,0 +1,30 @@ +/* GENcopy_from_user.S: Generic sparc64 copy from userspace. + * + * Copyright (C) 2007 David S. Miller (davem@davemloft.net) + */ + +#define EX_LD(x) \ +98: x; \ + .section __ex_table,"a";\ + .align 4; \ + .word 98b, __retl_one; \ + .text; \ + .align 4; + +#ifndef ASI_AIUS +#define ASI_AIUS 0x11 +#endif + +#define FUNC_NAME GENcopy_from_user +#define LOAD(type,addr,dest) type##a [addr] ASI_AIUS, dest +#define EX_RETVAL(x) 0 + +#ifdef __KERNEL__ +#define PREAMBLE \ + rd %asi, %g1; \ + cmp %g1, ASI_AIUS; \ + bne,pn %icc, ___copy_in_user; \ + nop +#endif + +#include "GENmemcpy.S" |