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usr
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src
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linux-headers-5.4.0-215-generic
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arch
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sparc
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include
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asm
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Filename :
head_64.h
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/* 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) */