head.h
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上传日期:2013-04-10
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- /* $Id: head.h,v 1.30.8.1 2002/03/03 10:31:56 davem Exp $ */
- #ifndef _SPARC64_HEAD_H
- #define _SPARC64_HEAD_H
- #include <asm/pstate.h>
- #define KERNBASE 0x400000
- #define PTREGS_OFF (STACK_BIAS + REGWIN_SZ)
- #define __CHEETAH_ID 0x003e0014
- #define CHEETAH_MANUF 0x003e
- #define CHEETAH_IMPL 0x0014
- #define CHEETAH_PLUS_IMPL 0x0015
- #define BRANCH_IF_CHEETAH_BASE(tmp1,tmp2,label)
- rdpr %ver, %tmp1;
- sethi %hi(__CHEETAH_ID), %tmp2;
- srlx %tmp1, 32, %tmp1;
- or %tmp2, %lo(__CHEETAH_ID), %tmp2;
- cmp %tmp1, %tmp2;
- be,pn %icc, label;
- nop;
- #define BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(tmp1,tmp2,label)
- rdpr %ver, %tmp1;
- srlx %tmp1, (32 + 16), %tmp2;
- cmp %tmp2, CHEETAH_MANUF;
- bne,pt %xcc, 99f;
- sllx %tmp1, 16, %tmp1;
- srlx %tmp1, (32 + 16), %tmp2;
- cmp %tmp2, CHEETAH_PLUS_IMPL;
- bgeu,pt %xcc, label;
- 99: nop;
- #define BRANCH_IF_ANY_CHEETAH(tmp1,tmp2,label)
- rdpr %ver, %tmp1;
- srlx %tmp1, (32 + 16), %tmp2;
- cmp %tmp2, CHEETAH_MANUF;
- bne,pt %xcc, 99f;
- sllx %tmp1, 16, %tmp1;
- srlx %tmp1, (32 + 16), %tmp2;
- cmp %tmp2, CHEETAH_IMPL;
- bgeu,pt %xcc, label;
- 99: nop;
- #endif /* !(_SPARC64_HEAD_H) */