/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SPARC64_HEAD_H
#define _SPARC64_HEAD_H

#include <asm/pstate.h>

        /* wrpr %g0, val, %gl */
#define SET_GL(val)     \
        .word   0xa1902000 | val

        /* rdpr %gl, %gN */
#define GET_GL_GLOBAL(N)        \
        .word   0x81540000 | (N << 25)

#define KERNBASE        0x400000

#define PTREGS_OFF      (STACK_BIAS + STACKFRAME_SZ)

#define RTRAP_PSTATE            (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_IE)
#define RTRAP_PSTATE_IRQOFF     (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV)
#define RTRAP_PSTATE_AG_IRQOFF  (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_AG)

#define __CHEETAH_ID    0x003e0014
#define __JALAPENO_ID   0x003e0016
#define __SERRANO_ID    0x003e0022

#define CHEETAH_MANUF           0x003e
#define CHEETAH_IMPL            0x0014 /* Ultra-III   */
#define CHEETAH_PLUS_IMPL       0x0015 /* Ultra-III+  */
#define JALAPENO_IMPL           0x0016 /* Ultra-IIIi  */
#define JAGUAR_IMPL             0x0018 /* Ultra-IV    */
#define PANTHER_IMPL            0x0019 /* Ultra-IV+   */
#define SERRANO_IMPL            0x0022 /* Ultra-IIIi+ */

#define BRANCH_IF_SUN4V(tmp1,label)             \
        sethi   %hi(is_sun4v), %tmp1;           \
        lduw    [%tmp1 + %lo(is_sun4v)], %tmp1; \
        brnz,pn %tmp1, label;                   \
         nop

#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_JALAPENO(tmp1,tmp2,label)     \
        rdpr    %ver, %tmp1;                    \
        sethi   %hi(__JALAPENO_ID), %tmp2;      \
        srlx    %tmp1, 32, %tmp1;               \
        or      %tmp2, %lo(__JALAPENO_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) */