ttable.h
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- /* $Id: ttable.h,v 1.17 2001/11/28 23:32:16 davem Exp $ */
- #ifndef _SPARC64_TTABLE_H
- #define _SPARC64_TTABLE_H
- #include <linux/config.h>
- #include <asm/asm_offsets.h>
- #include <asm/utrap.h>
- #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, STACK_BIAS + REGWIN_SZ, %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, STACK_BIAS + REGWIN_SZ, %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, STACK_BIAS + REGWIN_SZ, %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, STACK_BIAS + REGWIN_SZ, %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, STACK_BIAS + REGWIN_SZ, %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, STACK_BIAS + REGWIN_SZ, %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;
- ba,pt %xcc, routine;
- sethi %hi(systbl), %l7;
- nop; 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 + AOFF_task_thread + AOFF_thread_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
- #define LINUX_32BIT_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall32, sys_call_table32)
- #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, STACK_BIAS + REGWIN_SZ, %o1;
- ba,a,pt %xcc, rtrap_clr_l6;
-
- #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, STACK_BIAS + REGWIN_SZ, %o0;
- ba,a,pt %xcc, rtrap_clr_l6;
- #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 + STACK_BIAS + REGWIN_SZ + PT_V9_TNPC], %l1;
- add %l1, 4, %l2;
- stx %l1, [%sp + STACK_BIAS + REGWIN_SZ + PT_V9_TPC];
- ba,pt %xcc, rtrap_clr_l6;
- stx %l2, [%sp + STACK_BIAS + REGWIN_SZ + PT_V9_TNPC];
-
- /* 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) */