arch/sparc/include/asm/head_64.h

   1 #ifndef _SPARC64_HEAD_H
   2 #define _SPARC64_HEAD_H
   3
   4 #include <asm/pstate.h>
   5
   6         /* wrpr %g0, val, %gl */
   7 #define SET_GL(val)     \
   8         .word   0xa1902000 | val
   9
  10         /* rdpr %gl, %gN */
  11 #define GET_GL_GLOBAL(N)        \
  12         .word   0x81540000 | (N << 25)
  13
  14 #define KERNBASE        0x400000
  15
  16 #define PTREGS_OFF      (STACK_BIAS + STACKFRAME_SZ)
  17
  18 #define __CHEETAH_ID    0x003e0014
  19 #define __JALAPENO_ID   0x003e0016
  20 #define __SERRANO_ID    0x003e0022
  21
  22 #define CHEETAH_MANUF           0x003e
  23 #define CHEETAH_IMPL            0x0014 /* Ultra-III   */
  24 #define CHEETAH_PLUS_IMPL       0x0015 /* Ultra-III+  */
  25 #define JALAPENO_IMPL           0x0016 /* Ultra-IIIi  */
  26 #define JAGUAR_IMPL             0x0018 /* Ultra-IV    */
  27 #define PANTHER_IMPL            0x0019 /* Ultra-IV+   */
  28 #define SERRANO_IMPL            0x0022 /* Ultra-IIIi+ */
  29
  30 #define BRANCH_IF_SUN4V(tmp1,label)             \
  31         sethi   %hi(is_sun4v), %tmp1;           \
  32         lduw    [%tmp1 + %lo(is_sun4v)], %tmp1; \
  33         brnz,pn %tmp1, label;                   \
  34          nop
  35
  36 #define BRANCH_IF_CHEETAH_BASE(tmp1,tmp2,label) \
  37         rdpr    %ver, %tmp1;                    \
  38         sethi   %hi(__CHEETAH_ID), %tmp2;       \
  39         srlx    %tmp1, 32, %tmp1;               \
  40         or      %tmp2, %lo(__CHEETAH_ID), %tmp2;\
  41         cmp     %tmp1, %tmp2;                   \
  42         be,pn   %icc, label;                    \
  43          nop;
  44
  45 #define BRANCH_IF_JALAPENO(tmp1,tmp2,label)     \
  46         rdpr    %ver, %tmp1;                    \
  47         sethi   %hi(__JALAPENO_ID), %tmp2;      \
  48         srlx    %tmp1, 32, %tmp1;               \
  49         or      %tmp2, %lo(__JALAPENO_ID), %tmp2;\
  50         cmp     %tmp1, %tmp2;                   \
  51         be,pn   %icc, label;                    \
  52          nop;
  53
  54 #define BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(tmp1,tmp2,label)     \
  55         rdpr    %ver, %tmp1;                    \
  56         srlx    %tmp1, (32 + 16), %tmp2;        \
  57         cmp     %tmp2, CHEETAH_MANUF;           \
  58         bne,pt  %xcc, 99f;                      \
  59          sllx   %tmp1, 16, %tmp1;               \
  60         srlx    %tmp1, (32 + 16), %tmp2;        \
  61         cmp     %tmp2, CHEETAH_PLUS_IMPL;       \
  62         bgeu,pt %xcc, label;                    \
  63 99:      nop;
  64
  65 #define BRANCH_IF_ANY_CHEETAH(tmp1,tmp2,label)  \
  66         rdpr    %ver, %tmp1;                    \
  67         srlx    %tmp1, (32 + 16), %tmp2;        \
  68         cmp     %tmp2, CHEETAH_MANUF;           \
  69         bne,pt  %xcc, 99f;                      \
  70          sllx   %tmp1, 16, %tmp1;               \
  71         srlx    %tmp1, (32 + 16), %tmp2;        \
  72         cmp     %tmp2, CHEETAH_IMPL;            \
  73         bgeu,pt %xcc, label;                    \
  74 99:      nop;
  75
  76 #endif /* !(_SPARC64_HEAD_H) */