/* $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 <asm/ptrace.h> /* 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 + STACKFRAME_SZ + PT_I0], %i0; \ ldd [%base_reg + STACKFRAME_SZ + PT_I2], %i2; \ ldd [%base_reg + STACKFRAME_SZ + PT_I4], %i4; \ ldd [%base_reg + STACKFRAME_SZ + PT_I6], %i6; #define LOAD_PT_GLOBALS(base_reg) \ ld [%base_reg + STACKFRAME_SZ + PT_G1], %g1; \ ldd [%base_reg + STACKFRAME_SZ + PT_G2], %g2; \ ldd [%base_reg + STACKFRAME_SZ + PT_G4], %g4; \ ldd [%base_reg + STACKFRAME_SZ + PT_G6], %g6; #define LOAD_PT_YREG(base_reg, scratch) \ ld [%base_reg + STACKFRAME_SZ + PT_Y], %scratch; \ wr %scratch, 0x0, %y; #define LOAD_PT_PRIV(base_reg, pt_psr, pt_pc, pt_npc) \ ld [%base_reg + STACKFRAME_SZ + PT_PSR], %pt_psr; \ ld [%base_reg + STACKFRAME_SZ + PT_PC], %pt_pc; \ ld [%base_reg + STACKFRAME_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 + STACKFRAME_SZ + PT_I0]; \ std %i2, [%base_reg + STACKFRAME_SZ + PT_I2]; \ std %i4, [%base_reg + STACKFRAME_SZ + PT_I4]; \ std %i6, [%base_reg + STACKFRAME_SZ + PT_I6]; #define STORE_PT_GLOBALS(base_reg) \ st %g1, [%base_reg + STACKFRAME_SZ + PT_G1]; \ std %g2, [%base_reg + STACKFRAME_SZ + PT_G2]; \ std %g4, [%base_reg + STACKFRAME_SZ + PT_G4]; \ std %g6, [%base_reg + STACKFRAME_SZ + PT_G6]; #define STORE_PT_YREG(base_reg, scratch) \ rd %y, %scratch; \ st %scratch, [%base_reg + STACKFRAME_SZ + PT_Y]; #define STORE_PT_PRIV(base_reg, pt_psr, pt_pc, pt_npc) \ st %pt_psr, [%base_reg + STACKFRAME_SZ + PT_PSR]; \ st %pt_pc, [%base_reg + STACKFRAME_SZ + PT_PC]; \ st %pt_npc, [%base_reg + STACKFRAME_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 + TI_W_SAVED], %scratch; \ sll %scratch, 2, %scratch; \ add %scratch, %cur_reg, %scratch; \ st %sp, [%scratch + TI_RWIN_SPTRS]; \ sub %scratch, %cur_reg, %scratch; \ sll %scratch, 4, %scratch; \ add %scratch, %cur_reg, %scratch; \ STORE_WINDOW(scratch + TI_REG_WINDOW); \ sub %scratch, %cur_reg, %scratch; \ srl %scratch, 6, %scratch; \ add %scratch, 1, %scratch; \ st %scratch, [%cur_reg + TI_W_SAVED]; #ifdef CONFIG_SMP #define LOAD_CURRENT4M(dest_reg, idreg) \ rd %tbr, %idreg; \ sethi %hi(current_set), %dest_reg; \ srl %idreg, 10, %idreg; \ or %dest_reg, %lo(current_set), %dest_reg; \ and %idreg, 0xc, %idreg; \ ld [%idreg + %dest_reg], %dest_reg; #define LOAD_CURRENT4D(dest_reg, idreg) \ lda [%g0] ASI_M_VIKING_TMP1, %idreg; \ sethi %hi(C_LABEL(current_set)), %dest_reg; \ sll %idreg, 2, %idreg; \ or %dest_reg, %lo(C_LABEL(current_set)), %dest_reg; \ ld [%idreg + %dest_reg], %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(current_set), %dest_reg; \ sethi %hi(boot_cpu_id4), %idreg; \ or %dest_reg, %lo(current_set), %dest_reg; \ ldub [%idreg + %lo(boot_cpu_id4)], %idreg; \ ld [%idreg + %dest_reg], %dest_reg; #else #define LOAD_CURRENT(dest_reg, idreg) \ sethi %hi(current_set), %idreg; \ ld [%idreg + %lo(current_set)], %dest_reg; #endif #endif /* !(_SPARC_WINMACRO_H) */