LXR linux/arch/sparc/include/asm/head

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _SPARC64_HEAD_H
   3#define _SPARC64_HEAD_H
   4
   5#include <asm/pstate.h>
   6
   7        /* wrpr %g0, val, %gl */
   8#define SET_GL(val)     \
   9        .word   0xa1902000 | val
  10
  11        /* rdpr %gl, %gN */
  12#define GET_GL_GLOBAL(N)        \
  13        .word   0x81540000 | (N << 25)
  14
  15#define KERNBASE        0x400000
  16
  17#define PTREGS_OFF      (STACK_BIAS + STACKFRAME_SZ)
  18
  19#define RTRAP_PSTATE            (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_IE)
  20#define RTRAP_PSTATE_IRQOFF     (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV)
  21#define RTRAP_PSTATE_AG_IRQOFF  (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_AG)
  22
  23#define __CHEETAH_ID    0x003e0014
  24#define __JALAPENO_ID   0x003e0016
  25#define __SERRANO_ID    0x003e0022
  26
  27#define CHEETAH_MANUF           0x003e
  28#define CHEETAH_IMPL            0x0014 /* Ultra-III   */
  29#define CHEETAH_PLUS_IMPL       0x0015 /* Ultra-III+  */
  30#define JALAPENO_IMPL           0x0016 /* Ultra-IIIi  */
  31#define JAGUAR_IMPL             0x0018 /* Ultra-IV    */
  32#define PANTHER_IMPL            0x0019 /* Ultra-IV+   */
  33#define SERRANO_IMPL            0x0022 /* Ultra-IIIi+ */
  34
  35#define BRANCH_IF_SUN4V(tmp1,label)             \
  36        sethi   %hi(is_sun4v), %tmp1;           \
  37        lduw    [%tmp1 + %lo(is_sun4v)], %tmp1; \
  38        brnz,pn %tmp1, label;                   \
  39         nop
  40
  41#define BRANCH_IF_CHEETAH_BASE(tmp1,tmp2,label) \
  42        rdpr    %ver, %tmp1;                    \
  43        sethi   %hi(__CHEETAH_ID), %tmp2;       \
  44        srlx    %tmp1, 32, %tmp1;               \
  45        or      %tmp2, %lo(__CHEETAH_ID), %tmp2;\
  46        cmp     %tmp1, %tmp2;                   \
  47        be,pn   %icc, label;                    \
  48         nop;
  49
  50#define BRANCH_IF_JALAPENO(tmp1,tmp2,label)     \
  51        rdpr    %ver, %tmp1;                    \
  52        sethi   %hi(__JALAPENO_ID), %tmp2;      \
  53        srlx    %tmp1, 32, %tmp1;               \
  54        or      %tmp2, %lo(__JALAPENO_ID), %tmp2;\
  55        cmp     %tmp1, %tmp2;                   \
  56        be,pn   %icc, label;                    \
  57         nop;
  58
  59#define BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(tmp1,tmp2,label)     \
  60        rdpr    %ver, %tmp1;                    \
  61        srlx    %tmp1, (32 + 16), %tmp2;        \
  62        cmp     %tmp2, CHEETAH_MANUF;           \
  63        bne,pt  %xcc, 99f;                      \
  64         sllx   %tmp1, 16, %tmp1;               \
  65        srlx    %tmp1, (32 + 16), %tmp2;        \
  66        cmp     %tmp2, CHEETAH_PLUS_IMPL;       \
  67        bgeu,pt %xcc, label;                    \
  6899:      nop;
  69
  70#define BRANCH_IF_ANY_CHEETAH(tmp1,tmp2,label)  \
  71        rdpr    %ver, %tmp1;                    \
  72        srlx    %tmp1, (32 + 16), %tmp2;        \
  73        cmp     %tmp2, CHEETAH_MANUF;           \
  74        bne,pt  %xcc, 99f;                      \
  75         sllx   %tmp1, 16, %tmp1;               \
  76        srlx    %tmp1, (32 + 16), %tmp2;        \
  77        cmp     %tmp2, CHEETAH_IMPL;            \
  78        bgeu,pt %xcc, label;                    \
  7999:      nop;
  80
  81#endif /* !(_SPARC64_HEAD_H) */
  82