/* $Id: ttable.h,v 1.18 2002/02/09 19:49:32 davem Exp $ */ #ifndef _SPARC64_TTABLE_H #define _SPARC64_TTABLE_H #include <linux/config.h> #include <asm/utrap.h> #ifdef __ASSEMBLY__ #include <asm/thread_info.h> #endif #define BOOT_KERNEL b sparc64_boot; nop; nop; nop; nop; nop; nop; nop; /* We need a "cleaned" instruction... */ #define CLEAN_WINDOW \ rdpr %cleanwin, %l0; add %l0, 1, %l0; \ wrpr %l0, 0x0, %cleanwin; \ clr %o0; clr %o1; clr %o2; clr %o3; \ clr %o4; clr %o5; clr %o6; clr %o7; \ clr %l0; clr %l1; clr %l2; clr %l3; \ clr %l4; clr %l5; clr %l6; clr %l7; \ retry; \ nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;nop; #define TRAP(routine) \ sethi %hi(109f), %g7; \ ba,pt %xcc, etrap; \ 109: or %g7, %lo(109b), %g7; \ call routine; \ add %sp, PTREGS_OFF, %o0; \ ba,pt %xcc, rtrap; \ clr %l6; \ nop; #define TRAP_7INSNS(routine) \ sethi %hi(109f), %g7; \ ba,pt %xcc, etrap; \ 109: or %g7, %lo(109b), %g7; \ call routine; \ add %sp, PTREGS_OFF, %o0; \ ba,pt %xcc, rtrap; \ clr %l6; #define TRAP_SAVEFPU(routine) \ sethi %hi(109f), %g7; \ ba,pt %xcc, do_fptrap; \ 109: or %g7, %lo(109b), %g7; \ call routine; \ add %sp, PTREGS_OFF, %o0; \ ba,pt %xcc, rtrap; \ clr %l6; \ nop; #define TRAP_NOSAVE(routine) \ ba,pt %xcc, routine; \ nop; \ nop; nop; nop; nop; nop; nop; #define TRAP_NOSAVE_7INSNS(routine) \ ba,pt %xcc, routine; \ nop; \ nop; nop; nop; nop; nop; #define TRAPTL1(routine) \ sethi %hi(109f), %g7; \ ba,pt %xcc, etraptl1; \ 109: or %g7, %lo(109b), %g7; \ call routine; \ add %sp, PTREGS_OFF, %o0; \ ba,pt %xcc, rtrap; \ clr %l6; \ nop; #define TRAP_ARG(routine, arg) \ sethi %hi(109f), %g7; \ ba,pt %xcc, etrap; \ 109: or %g7, %lo(109b), %g7; \ add %sp, PTREGS_OFF, %o0; \ call routine; \ mov arg, %o1; \ ba,pt %xcc, rtrap; \ clr %l6; #define TRAPTL1_ARG(routine, arg) \ sethi %hi(109f), %g7; \ ba,pt %xcc, etraptl1; \ 109: or %g7, %lo(109b), %g7; \ add %sp, PTREGS_OFF, %o0; \ call routine; \ mov arg, %o1; \ ba,pt %xcc, rtrap; \ clr %l6; #define SYSCALL_TRAP(routine, systbl) \ sethi %hi(109f), %g7; \ ba,pt %xcc, scetrap; \ 109: or %g7, %lo(109b), %g7; \ sethi %hi(systbl), %l7; \ ba,pt %xcc, routine; \ or %l7, %lo(systbl), %l7; \ nop; nop; #define INDIRECT_SOLARIS_SYSCALL(num) \ sethi %hi(109f), %g7; \ ba,pt %xcc, etrap; \ 109: or %g7, %lo(109b), %g7; \ ba,pt %xcc, tl0_solaris + 0xc; \ mov num, %g1; \ nop;nop;nop; #define TRAP_UTRAP(handler,lvl) \ ldx [%g6 + TI_UTRAPS], %g1; \ sethi %hi(109f), %g7; \ brz,pn %g1, utrap; \ or %g7, %lo(109f), %g7; \ ba,pt %xcc, utrap; \ 109: ldx [%g1 + handler*8], %g1; \ ba,pt %xcc, utrap_ill; \ mov lvl, %o1; #ifdef CONFIG_SUNOS_EMUL #define SUNOS_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall32, sunos_sys_table) #else #define SUNOS_SYSCALL_TRAP TRAP(sunos_syscall) #endif #ifdef CONFIG_COMPAT #define LINUX_32BIT_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall32, sys_call_table32) #else #define LINUX_32BIT_SYSCALL_TRAP BTRAP(0x110) #endif #define LINUX_64BIT_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall, sys_call_table64) #define GETCC_TRAP TRAP(getcc) #define SETCC_TRAP TRAP(setcc) #ifdef CONFIG_SOLARIS_EMUL #define SOLARIS_SYSCALL_TRAP TRAP(solaris_sparc_syscall) #else #define SOLARIS_SYSCALL_TRAP TRAP(solaris_syscall) #endif /* FIXME: Write these actually */ #define NETBSD_SYSCALL_TRAP TRAP(netbsd_syscall) #define BREAKPOINT_TRAP TRAP(breakpoint_trap) #define TRAP_IRQ(routine, level) \ rdpr %pil, %g2; \ wrpr %g0, 15, %pil; \ b,pt %xcc, etrap_irq; \ rd %pc, %g7; \ mov level, %o0; \ call routine; \ add %sp, PTREGS_OFF, %o1; \ ba,a,pt %xcc, rtrap_irq; #define TICK_SMP_IRQ \ rdpr %pil, %g2; \ wrpr %g0, 15, %pil; \ sethi %hi(109f), %g7; \ b,pt %xcc, etrap_irq; \ 109: or %g7, %lo(109b), %g7; \ call smp_percpu_timer_interrupt; \ add %sp, PTREGS_OFF, %o0; \ ba,a,pt %xcc, rtrap_irq; #define TRAP_IVEC TRAP_NOSAVE(do_ivec) #define BTRAP(lvl) TRAP_ARG(bad_trap, lvl) #define BTRAPTL1(lvl) TRAPTL1_ARG(bad_trap_tl1, lvl) #define FLUSH_WINDOW_TRAP \ ba,pt %xcc, etrap; \ rd %pc, %g7; \ flushw; \ ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1; \ add %l1, 4, %l2; \ stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC]; \ ba,pt %xcc, rtrap_clr_l6; \ stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]; #ifdef CONFIG_KPROBES #define KPROBES_TRAP(lvl) TRAP_IRQ(kprobe_trap, lvl) #else #define KPROBES_TRAP(lvl) TRAP_ARG(bad_trap, lvl) #endif /* Before touching these macros, you owe it to yourself to go and * see how arch/sparc64/kernel/winfixup.S works... -DaveM * * For the user cases we used to use the %asi register, but * it turns out that the "wr xxx, %asi" costs ~5 cycles, so * now we use immediate ASI loads and stores instead. Kudos * to Greg Onufer for pointing out this performance anomaly. * * Further note that we cannot use the g2, g4, g5, and g7 alternate * globals in the spill routines, check out the save instruction in * arch/sparc64/kernel/etrap.S to see what I mean about g2, and * g4/g5 are the globals which are preserved by etrap processing * for the caller of it. The g7 register is the return pc for * etrap. Finally, g6 is the current thread register so we cannot * us it in the spill handlers either. Most of these rules do not * apply to fill processing, only g6 is not usable. */ /* Normal kernel spill */ #define SPILL_0_NORMAL \ stx %l0, [%sp + STACK_BIAS + 0x00]; \ stx %l1, [%sp + STACK_BIAS + 0x08]; \ stx %l2, [%sp + STACK_BIAS + 0x10]; \ stx %l3, [%sp + STACK_BIAS + 0x18]; \ stx %l4, [%sp + STACK_BIAS + 0x20]; \ stx %l5, [%sp + STACK_BIAS + 0x28]; \ stx %l6, [%sp + STACK_BIAS + 0x30]; \ stx %l7, [%sp + STACK_BIAS + 0x38]; \ stx %i0, [%sp + STACK_BIAS + 0x40]; \ stx %i1, [%sp + STACK_BIAS + 0x48]; \ stx %i2, [%sp + STACK_BIAS + 0x50]; \ stx %i3, [%sp + STACK_BIAS + 0x58]; \ stx %i4, [%sp + STACK_BIAS + 0x60]; \ stx %i5, [%sp + STACK_BIAS + 0x68]; \ stx %i6, [%sp + STACK_BIAS + 0x70]; \ stx %i7, [%sp + STACK_BIAS + 0x78]; \ saved; retry; nop; nop; nop; nop; nop; nop; \ nop; nop; nop; nop; nop; nop; nop; nop; /* Normal 64bit spill */ #define SPILL_1_GENERIC(ASI) \ add %sp, STACK_BIAS + 0x00, %g1; \ stxa %l0, [%g1 + %g0] ASI; \ mov 0x08, %g3; \ stxa %l1, [%g1 + %g3] ASI; \ add %g1, 0x10, %g1; \ stxa %l2, [%g1 + %g0] ASI; \ stxa %l3, [%g1 + %g3] ASI; \ add %g1, 0x10, %g1; \ stxa %l4, [%g1 + %g0] ASI; \ stxa %l5, [%g1 + %g3] ASI; \ add %g1, 0x10, %g1; \ stxa %l6, [%g1 + %g0] ASI; \ stxa %l7, [%g1 + %g3] ASI; \ add %g1, 0x10, %g1; \ stxa %i0, [%g1 + %g0] ASI; \ stxa %i1, [%g1 + %g3] ASI; \ add %g1, 0x10, %g1; \ stxa %i2, [%g1 + %g0] ASI; \ stxa %i3, [%g1 + %g3] ASI; \ add %g1, 0x10, %g1; \ stxa %i4, [%g1 + %g0] ASI; \ stxa %i5, [%g1 + %g3] ASI; \ add %g1, 0x10, %g1; \ stxa %i6, [%g1 + %g0] ASI; \ stxa %i7, [%g1 + %g3] ASI; \ saved; \ retry; nop; nop; \ b,a,pt %xcc, spill_fixup_dax; \ b,a,pt %xcc, spill_fixup_mna; \ b,a,pt %xcc, spill_fixup; /* Normal 32bit spill */ #define SPILL_2_GENERIC(ASI) \ srl %sp, 0, %sp; \ stwa %l0, [%sp + %g0] ASI; \ mov 0x04, %g3; \ stwa %l1, [%sp + %g3] ASI; \ add %sp, 0x08, %g1; \ stwa %l2, [%g1 + %g0] ASI; \ stwa %l3, [%g1 + %g3] ASI; \ add %g1, 0x08, %g1; \ stwa %l4, [%g1 + %g0] ASI; \ stwa %l5, [%g1 + %g3] ASI; \ add %g1, 0x08, %g1; \ stwa %l6, [%g1 + %g0] ASI; \ stwa %l7, [%g1 + %g3] ASI; \ add %g1, 0x08, %g1; \ stwa %i0, [%g1 + %g0] ASI; \ stwa %i1, [%g1 + %g3] ASI; \ add %g1, 0x08, %g1; \ stwa %i2, [%g1 + %g0] ASI; \ stwa %i3, [%g1 + %g3] ASI; \ add %g1, 0x08, %g1; \ stwa %i4, [%g1 + %g0] ASI; \ stwa %i5, [%g1 + %g3] ASI; \ add %g1, 0x08, %g1; \ stwa %i6, [%g1 + %g0] ASI; \ stwa %i7, [%g1 + %g3] ASI; \ saved; \ retry; nop; nop; \ b,a,pt %xcc, spill_fixup_dax; \ b,a,pt %xcc, spill_fixup_mna; \ b,a,pt %xcc, spill_fixup; #define SPILL_1_NORMAL SPILL_1_GENERIC(ASI_AIUP) #define SPILL_2_NORMAL SPILL_2_GENERIC(ASI_AIUP) #define SPILL_3_NORMAL SPILL_0_NORMAL #define SPILL_4_NORMAL SPILL_0_NORMAL #define SPILL_5_NORMAL SPILL_0_NORMAL #define SPILL_6_NORMAL SPILL_0_NORMAL #define SPILL_7_NORMAL SPILL_0_NORMAL #define SPILL_0_OTHER SPILL_0_NORMAL #define SPILL_1_OTHER SPILL_1_GENERIC(ASI_AIUS) #define SPILL_2_OTHER SPILL_2_GENERIC(ASI_AIUS) #define SPILL_3_OTHER SPILL_3_NORMAL #define SPILL_4_OTHER SPILL_4_NORMAL #define SPILL_5_OTHER SPILL_5_NORMAL #define SPILL_6_OTHER SPILL_6_NORMAL #define SPILL_7_OTHER SPILL_7_NORMAL /* Normal kernel fill */ #define FILL_0_NORMAL \ ldx [%sp + STACK_BIAS + 0x00], %l0; \ ldx [%sp + STACK_BIAS + 0x08], %l1; \ ldx [%sp + STACK_BIAS + 0x10], %l2; \ ldx [%sp + STACK_BIAS + 0x18], %l3; \ ldx [%sp + STACK_BIAS + 0x20], %l4; \ ldx [%sp + STACK_BIAS + 0x28], %l5; \ ldx [%sp + STACK_BIAS + 0x30], %l6; \ ldx [%sp + STACK_BIAS + 0x38], %l7; \ ldx [%sp + STACK_BIAS + 0x40], %i0; \ ldx [%sp + STACK_BIAS + 0x48], %i1; \ ldx [%sp + STACK_BIAS + 0x50], %i2; \ ldx [%sp + STACK_BIAS + 0x58], %i3; \ ldx [%sp + STACK_BIAS + 0x60], %i4; \ ldx [%sp + STACK_BIAS + 0x68], %i5; \ ldx [%sp + STACK_BIAS + 0x70], %i6; \ ldx [%sp + STACK_BIAS + 0x78], %i7; \ restored; retry; nop; nop; nop; nop; nop; nop; \ nop; nop; nop; nop; nop; nop; nop; nop; /* Normal 64bit fill */ #define FILL_1_GENERIC(ASI) \ add %sp, STACK_BIAS + 0x00, %g1; \ ldxa [%g1 + %g0] ASI, %l0; \ mov 0x08, %g2; \ mov 0x10, %g3; \ ldxa [%g1 + %g2] ASI, %l1; \ mov 0x18, %g5; \ ldxa [%g1 + %g3] ASI, %l2; \ ldxa [%g1 + %g5] ASI, %l3; \ add %g1, 0x20, %g1; \ ldxa [%g1 + %g0] ASI, %l4; \ ldxa [%g1 + %g2] ASI, %l5; \ ldxa [%g1 + %g3] ASI, %l6; \ ldxa [%g1 + %g5] ASI, %l7; \ add %g1, 0x20, %g1; \ ldxa [%g1 + %g0] ASI, %i0; \ ldxa [%g1 + %g2] ASI, %i1; \ ldxa [%g1 + %g3] ASI, %i2; \ ldxa [%g1 + %g5] ASI, %i3; \ add %g1, 0x20, %g1; \ ldxa [%g1 + %g0] ASI, %i4; \ ldxa [%g1 + %g2] ASI, %i5; \ ldxa [%g1 + %g3] ASI, %i6; \ ldxa [%g1 + %g5] ASI, %i7; \ restored; \ retry; nop; nop; nop; nop; \ b,a,pt %xcc, fill_fixup_dax; \ b,a,pt %xcc, fill_fixup_mna; \ b,a,pt %xcc, fill_fixup; /* Normal 32bit fill */ #define FILL_2_GENERIC(ASI) \ srl %sp, 0, %sp; \ lduwa [%sp + %g0] ASI, %l0; \ mov 0x04, %g2; \ mov 0x08, %g3; \ lduwa [%sp + %g2] ASI, %l1; \ mov 0x0c, %g5; \ lduwa [%sp + %g3] ASI, %l2; \ lduwa [%sp + %g5] ASI, %l3; \ add %sp, 0x10, %g1; \ lduwa [%g1 + %g0] ASI, %l4; \ lduwa [%g1 + %g2] ASI, %l5; \ lduwa [%g1 + %g3] ASI, %l6; \ lduwa [%g1 + %g5] ASI, %l7; \ add %g1, 0x10, %g1; \ lduwa [%g1 + %g0] ASI, %i0; \ lduwa [%g1 + %g2] ASI, %i1; \ lduwa [%g1 + %g3] ASI, %i2; \ lduwa [%g1 + %g5] ASI, %i3; \ add %g1, 0x10, %g1; \ lduwa [%g1 + %g0] ASI, %i4; \ lduwa [%g1 + %g2] ASI, %i5; \ lduwa [%g1 + %g3] ASI, %i6; \ lduwa [%g1 + %g5] ASI, %i7; \ restored; \ retry; nop; nop; nop; nop; \ b,a,pt %xcc, fill_fixup_dax; \ b,a,pt %xcc, fill_fixup_mna; \ b,a,pt %xcc, fill_fixup; #define FILL_1_NORMAL FILL_1_GENERIC(ASI_AIUP) #define FILL_2_NORMAL FILL_2_GENERIC(ASI_AIUP) #define FILL_3_NORMAL FILL_0_NORMAL #define FILL_4_NORMAL FILL_0_NORMAL #define FILL_5_NORMAL FILL_0_NORMAL #define FILL_6_NORMAL FILL_0_NORMAL #define FILL_7_NORMAL FILL_0_NORMAL #define FILL_0_OTHER FILL_0_NORMAL #define FILL_1_OTHER FILL_1_GENERIC(ASI_AIUS) #define FILL_2_OTHER FILL_2_GENERIC(ASI_AIUS) #define FILL_3_OTHER FILL_3_NORMAL #define FILL_4_OTHER FILL_4_NORMAL #define FILL_5_OTHER FILL_5_NORMAL #define FILL_6_OTHER FILL_6_NORMAL #define FILL_7_OTHER FILL_7_NORMAL #endif /* !(_SPARC64_TTABLE_H) */