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