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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | /* $Id: winmacro.h,v 1.22 2000/05/09 17:40:15 davem Exp $ * winmacro.h: Window loading-unloading macros. * * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) */ #ifndef _SPARC_WINMACRO_H #define _SPARC_WINMACRO_H #include <linux/config.h> #include <asm/ptrace.h> #include <asm/psr.h> /* These are just handy. */ #define _SV save %sp, -REGWIN_SZ, %sp #define _RS restore #define FLUSH_ALL_KERNEL_WINDOWS \ _SV; _SV; _SV; _SV; _SV; _SV; _SV; \ _RS; _RS; _RS; _RS; _RS; _RS; _RS; /* Store the register window onto the 8-byte aligned area starting * at %reg. It might be %sp, it might not, we don't care. */ #define STORE_WINDOW(reg) \ std %l0, [%reg + RW_L0]; \ std %l2, [%reg + RW_L2]; \ std %l4, [%reg + RW_L4]; \ std %l6, [%reg + RW_L6]; \ std %i0, [%reg + RW_I0]; \ std %i2, [%reg + RW_I2]; \ std %i4, [%reg + RW_I4]; \ std %i6, [%reg + RW_I6]; /* Load a register window from the area beginning at %reg. */ #define LOAD_WINDOW(reg) \ ldd [%reg + RW_L0], %l0; \ ldd [%reg + RW_L2], %l2; \ ldd [%reg + RW_L4], %l4; \ ldd [%reg + RW_L6], %l6; \ ldd [%reg + RW_I0], %i0; \ ldd [%reg + RW_I2], %i2; \ ldd [%reg + RW_I4], %i4; \ ldd [%reg + RW_I6], %i6; /* Loading and storing struct pt_reg trap frames. */ #define LOAD_PT_INS(base_reg) \ ldd [%base_reg + REGWIN_SZ + PT_I0], %i0; \ ldd [%base_reg + REGWIN_SZ + PT_I2], %i2; \ ldd [%base_reg + REGWIN_SZ + PT_I4], %i4; \ ldd [%base_reg + REGWIN_SZ + PT_I6], %i6; #define LOAD_PT_GLOBALS(base_reg) \ ld [%base_reg + REGWIN_SZ + PT_G1], %g1; \ ldd [%base_reg + REGWIN_SZ + PT_G2], %g2; \ ldd [%base_reg + REGWIN_SZ + PT_G4], %g4; \ ldd [%base_reg + REGWIN_SZ + PT_G6], %g6; #define LOAD_PT_YREG(base_reg, scratch) \ ld [%base_reg + REGWIN_SZ + PT_Y], %scratch; \ wr %scratch, 0x0, %y; #define LOAD_PT_PRIV(base_reg, pt_psr, pt_pc, pt_npc) \ ld [%base_reg + REGWIN_SZ + PT_PSR], %pt_psr; \ ld [%base_reg + REGWIN_SZ + PT_PC], %pt_pc; \ ld [%base_reg + REGWIN_SZ + PT_NPC], %pt_npc; #define LOAD_PT_ALL(base_reg, pt_psr, pt_pc, pt_npc, scratch) \ LOAD_PT_YREG(base_reg, scratch) \ LOAD_PT_INS(base_reg) \ LOAD_PT_GLOBALS(base_reg) \ LOAD_PT_PRIV(base_reg, pt_psr, pt_pc, pt_npc) #define STORE_PT_INS(base_reg) \ std %i0, [%base_reg + REGWIN_SZ + PT_I0]; \ std %i2, [%base_reg + REGWIN_SZ + PT_I2]; \ std %i4, [%base_reg + REGWIN_SZ + PT_I4]; \ std %i6, [%base_reg + REGWIN_SZ + PT_I6]; #define STORE_PT_GLOBALS(base_reg) \ st %g1, [%base_reg + REGWIN_SZ + PT_G1]; \ std %g2, [%base_reg + REGWIN_SZ + PT_G2]; \ std %g4, [%base_reg + REGWIN_SZ + PT_G4]; \ std %g6, [%base_reg + REGWIN_SZ + PT_G6]; #define STORE_PT_YREG(base_reg, scratch) \ rd %y, %scratch; \ st %scratch, [%base_reg + REGWIN_SZ + PT_Y]; #define STORE_PT_PRIV(base_reg, pt_psr, pt_pc, pt_npc) \ st %pt_psr, [%base_reg + REGWIN_SZ + PT_PSR]; \ st %pt_pc, [%base_reg + REGWIN_SZ + PT_PC]; \ st %pt_npc, [%base_reg + REGWIN_SZ + PT_NPC]; #define STORE_PT_ALL(base_reg, reg_psr, reg_pc, reg_npc, g_scratch) \ STORE_PT_PRIV(base_reg, reg_psr, reg_pc, reg_npc) \ STORE_PT_GLOBALS(base_reg) \ STORE_PT_YREG(base_reg, g_scratch) \ STORE_PT_INS(base_reg) #define SAVE_BOLIXED_USER_STACK(cur_reg, scratch) \ ld [%cur_reg + AOFF_task_thread + AOFF_thread_w_saved], %scratch; \ sll %scratch, 2, %scratch; \ add %scratch, %cur_reg, %scratch; \ st %sp, [%scratch + AOFF_task_thread + AOFF_thread_rwbuf_stkptrs]; \ sub %scratch, %cur_reg, %scratch; \ sll %scratch, 4, %scratch; \ add %scratch, %cur_reg, %scratch; \ STORE_WINDOW(scratch + AOFF_task_thread + AOFF_thread_reg_window); \ sub %scratch, %cur_reg, %scratch; \ srl %scratch, 6, %scratch; \ add %scratch, 1, %scratch; \ st %scratch, [%cur_reg + AOFF_task_thread + AOFF_thread_w_saved]; #ifdef CONFIG_SMP #define LOAD_CURRENT4M(dest_reg, idreg) \ rd %tbr, %idreg; \ sethi %hi(C_LABEL(current_set)), %dest_reg; \ srl %idreg, 10, %idreg; \ or %dest_reg, %lo(C_LABEL(current_set)), %dest_reg; \ and %idreg, 0xc, %idreg; \ ld [%idreg + %dest_reg], %dest_reg; /* Sliiick. We have a Linux current register :) -jj */ #define LOAD_CURRENT4D(dest_reg) \ lda [%g0] ASI_M_VIKING_TMP2, %dest_reg; /* Blackbox - take care with this... - check smp4m and smp4d before changing this. */ #define LOAD_CURRENT(dest_reg, idreg) \ sethi %hi(___b_load_current), %idreg; \ sethi %hi(C_LABEL(current_set)), %dest_reg; \ sethi %hi(C_LABEL(boot_cpu_id4)), %idreg; \ or %dest_reg, %lo(C_LABEL(current_set)), %dest_reg; \ ldub [%idreg + %lo(C_LABEL(boot_cpu_id4))], %idreg; \ ld [%idreg + %dest_reg], %dest_reg; #else #define LOAD_CURRENT(dest_reg, idreg) \ sethi %hi(C_LABEL(current_set)), %idreg; \ ld [%idreg + %lo(C_LABEL(current_set))], %dest_reg; #endif #endif /* !(_SPARC_WINMACRO_H) */ |