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   1 /* $Id: head.h,v 1.30 1997/08/08 08:34:33 jj Exp $ */
   2 #ifndef _SPARC64_HEAD_H
   3 #define _SPARC64_HEAD_H
   4
   5 #include <asm/pstate.h>
   6
   7 #define KERNBASE        0x400000
   8
   9 #define PTREGS_OFF      (STACK_BIAS + STACKFRAME_SZ)
  10
  11 #define __CHEETAH_ID    0x003e0014
  12 #define __JALAPENO_ID   0x003e0016
  13
  14 #define CHEETAH_MANUF           0x003e
  15 #define CHEETAH_IMPL            0x0014
  16 #define CHEETAH_PLUS_IMPL       0x0015
  17 #define JALAPENO_IMPL           0x0016
  18
  19 #define BRANCH_IF_CHEETAH_BASE(tmp1,tmp2,label) \
  20         rdpr    %ver, %tmp1;                    \
  21         sethi   %hi(__CHEETAH_ID), %tmp2;       \
  22         srlx    %tmp1, 32, %tmp1;               \
  23         or      %tmp2, %lo(__CHEETAH_ID), %tmp2;\
  24         cmp     %tmp1, %tmp2;                   \
  25         be,pn   %icc, label;                    \
  26          nop;
  27
  28 #define BRANCH_IF_JALAPENO(tmp1,tmp2,label)     \
  29         rdpr    %ver, %tmp1;                    \
  30         sethi   %hi(__JALAPENO_ID), %tmp2;      \
  31         srlx    %tmp1, 32, %tmp1;               \
  32         or      %tmp2, %lo(__JALAPENO_ID), %tmp2;\
  33         cmp     %tmp1, %tmp2;                   \
  34         be,pn   %icc, label;                    \
  35          nop;
  36
  37 #define BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(tmp1,tmp2,label)     \
  38         rdpr    %ver, %tmp1;                    \
  39         srlx    %tmp1, (32 + 16), %tmp2;        \
  40         cmp     %tmp2, CHEETAH_MANUF;           \
  41         bne,pt  %xcc, 99f;                      \
  42          sllx   %tmp1, 16, %tmp1;               \
  43         srlx    %tmp1, (32 + 16), %tmp2;        \
  44         cmp     %tmp2, CHEETAH_PLUS_IMPL;       \
  45         bgeu,pt %xcc, label;                    \
  46 99:      nop;
  47
  48 #define BRANCH_IF_ANY_CHEETAH(tmp1,tmp2,label)  \
  49         rdpr    %ver, %tmp1;                    \
  50         srlx    %tmp1, (32 + 16), %tmp2;        \
  51         cmp     %tmp2, CHEETAH_MANUF;           \
  52         bne,pt  %xcc, 99f;                      \
  53          sllx   %tmp1, 16, %tmp1;               \
  54         srlx    %tmp1, (32 + 16), %tmp2;        \
  55         cmp     %tmp2, CHEETAH_IMPL;            \
  56         bgeu,pt %xcc, label;                    \
  57 99:      nop;
  58
  59 #endif /* !(_SPARC64_HEAD_H) */