| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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; \ |
| 68 | 99: 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; \ |
| 79 | 99: nop; |
| 80 | |
| 81 | #endif /* !(_SPARC64_HEAD_H) */ |