kernel/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 RTRAP_PSTATE            (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_IE)
  19 #define RTRAP_PSTATE_IRQOFF     (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV)
  20 #define RTRAP_PSTATE_AG_IRQOFF  (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_AG)
  21
  22 #define __CHEETAH_ID    0x003e0014
  23 #define __JALAPENO_ID   0x003e0016
  24 #define __SERRANO_ID    0x003e0022
  25
  26 #define CHEETAH_MANUF           0x003e
  27 #define CHEETAH_IMPL            0x0014 /* Ultra-III   */
  28 #define CHEETAH_PLUS_IMPL       0x0015 /* Ultra-III+  */
  29 #define JALAPENO_IMPL           0x0016 /* Ultra-IIIi  */
  30 #define JAGUAR_IMPL             0x0018 /* Ultra-IV    */
  31 #define PANTHER_IMPL            0x0019 /* Ultra-IV+   */
  32 #define SERRANO_IMPL            0x0022 /* Ultra-IIIi+ */
  33
  34 #define BRANCH_IF_SUN4V(tmp1,label)             \
  35         sethi   %hi(is_sun4v), %tmp1;           \
  36         lduw    [%tmp1 + %lo(is_sun4v)], %tmp1; \
  37         brnz,pn %tmp1, label;                   \
  38          nop
  39
  40 #define BRANCH_IF_CHEETAH_BASE(tmp1,tmp2,label) \
  41         rdpr    %ver, %tmp1;                    \
  42         sethi   %hi(__CHEETAH_ID), %tmp2;       \
  43         srlx    %tmp1, 32, %tmp1;               \
  44         or      %tmp2, %lo(__CHEETAH_ID), %tmp2;\
  45         cmp     %tmp1, %tmp2;                   \
  46         be,pn   %icc, label;                    \
  47          nop;
  48
  49 #define BRANCH_IF_JALAPENO(tmp1,tmp2,label)     \
  50         rdpr    %ver, %tmp1;                    \
  51         sethi   %hi(__JALAPENO_ID), %tmp2;      \
  52         srlx    %tmp1, 32, %tmp1;               \
  53         or      %tmp2, %lo(__JALAPENO_ID), %tmp2;\
  54         cmp     %tmp1, %tmp2;                   \
  55         be,pn   %icc, label;                    \
  56          nop;
  57
  58 #define BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(tmp1,tmp2,label)     \
  59         rdpr    %ver, %tmp1;                    \
  60         srlx    %tmp1, (32 + 16), %tmp2;        \
  61         cmp     %tmp2, CHEETAH_MANUF;           \
  62         bne,pt  %xcc, 99f;                      \
  63          sllx   %tmp1, 16, %tmp1;               \
  64         srlx    %tmp1, (32 + 16), %tmp2;        \
  65         cmp     %tmp2, CHEETAH_PLUS_IMPL;       \
  66         bgeu,pt %xcc, label;                    \
  67 99:      nop;
  68
  69 #define BRANCH_IF_ANY_CHEETAH(tmp1,tmp2,label)  \
  70         rdpr    %ver, %tmp1;                    \
  71         srlx    %tmp1, (32 + 16), %tmp2;        \
  72         cmp     %tmp2, CHEETAH_MANUF;           \
  73         bne,pt  %xcc, 99f;                      \
  74          sllx   %tmp1, 16, %tmp1;               \
  75         srlx    %tmp1, (32 + 16), %tmp2;        \
  76         cmp     %tmp2, CHEETAH_IMPL;            \
  77         bgeu,pt %xcc, label;                    \
  78 99:      nop;
  79
  80 #endif /* !(_SPARC64_HEAD_H) */