[OpenBIOS] r205 - openbios-devel/arch/sparc64
svn at openbios.org
svn at openbios.org
Thu Jul 17 14:48:11 CEST 2008
Author: blueswirl
Date: 2008-07-17 14:48:11 +0200 (Thu, 17 Jul 2008)
New Revision: 205
Removed:
openbios-devel/arch/sparc64/ttable.h
openbios-devel/arch/sparc64/winfixup.S
Modified:
openbios-devel/arch/sparc64/vectors.S
Log:
Handle 32 bit windows, remove now unused files
Deleted: openbios-devel/arch/sparc64/ttable.h
===================================================================
--- openbios-devel/arch/sparc64/ttable.h 2008-07-16 16:51:39 UTC (rev 204)
+++ openbios-devel/arch/sparc64/ttable.h 2008-07-17 12:48:11 UTC (rev 205)
@@ -1,407 +0,0 @@
-/* $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) */
Modified: openbios-devel/arch/sparc64/vectors.S
===================================================================
--- openbios-devel/arch/sparc64/vectors.S 2008-07-16 16:51:39 UTC (rev 204)
+++ openbios-devel/arch/sparc64/vectors.S 2008-07-17 12:48:11 UTC (rev 205)
@@ -26,7 +26,6 @@
#define __ASSEMBLY__
#include "pstate.h"
#include "asi.h"
-#include "ttable.h"
#define ASI_BP ASI_PHYS_BYPASS_EC_E
#define SER_ADDR 0x1fe020003f8
@@ -39,13 +38,66 @@
.register %g6, #scratch
.register %g7, #scratch
trap_table:
-#undef TRAP_IRQ
-#define TRAP_IRQ(routine, level) \
- ba routine; nop; nop; nop; nop; nop; nop; nop;
-#undef BTRAP
-#define BTRAP(lvl) \
- ba bug; mov lvl, %g1; nop; nop; nop; nop; nop; nop;
-#undef BTRAPTL1
+#define SPILL_WINDOW \
+ btst 1, %sp; \
+ be spill_32bit; \
+ nop; \
+ 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;
+
+#define FILL_WINDOW \
+ btst 1, %sp; \
+ be fill_32bit; \
+ nop; \
+ 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;
+
+#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_IRQ(routine, level) \
+ ba routine; nop; nop; nop; nop; nop; nop; nop;
+#define BTRAP(lvl) \
+ ba bug; mov lvl, %g1; nop; nop; nop; nop; nop; nop;
#define BTRAPTL1(lvl) BTRAP(lvl)
#define BTRAPS(x) BTRAP(x) BTRAP(x+1) BTRAP(x+2) BTRAP(x+3) BTRAP(x+4) BTRAP(x+5) BTRAP(x+6) BTRAP(x+7)
@@ -76,38 +128,38 @@
BTRAPS(0x50) BTRAPS(0x58)
BTRAPS(0x60) BTRAPS(0x68)
BTRAPS(0x70) BTRAPS(0x78)
-tl0_s0n: SPILL_0_NORMAL
-tl0_s1n: SPILL_1_NORMAL
-tl0_s2n: SPILL_2_NORMAL
-tl0_s3n: SPILL_3_NORMAL
-tl0_s4n: SPILL_4_NORMAL
-tl0_s5n: SPILL_5_NORMAL
-tl0_s6n: SPILL_6_NORMAL
-tl0_s7n: SPILL_7_NORMAL
-tl0_s0o: SPILL_0_OTHER
-tl0_s1o: SPILL_1_OTHER
-tl0_s2o: SPILL_2_OTHER
-tl0_s3o: SPILL_3_OTHER
-tl0_s4o: SPILL_4_OTHER
-tl0_s5o: SPILL_5_OTHER
-tl0_s6o: SPILL_6_OTHER
-tl0_s7o: SPILL_7_OTHER
-tl0_f0n: FILL_0_NORMAL
-tl0_f1n: FILL_1_NORMAL
-tl0_f2n: FILL_2_NORMAL
-tl0_f3n: FILL_3_NORMAL
-tl0_f4n: FILL_4_NORMAL
-tl0_f5n: FILL_5_NORMAL
-tl0_f6n: FILL_6_NORMAL
-tl0_f7n: FILL_7_NORMAL
-tl0_f0o: FILL_0_OTHER
-tl0_f1o: FILL_1_OTHER
-tl0_f2o: FILL_2_OTHER
-tl0_f3o: FILL_3_OTHER
-tl0_f4o: FILL_4_OTHER
-tl0_f5o: FILL_5_OTHER
-tl0_f6o: FILL_6_OTHER
-tl0_f7o: FILL_7_OTHER
+tl0_s0n: SPILL_WINDOW
+tl0_s1n: SPILL_WINDOW
+tl0_s2n: SPILL_WINDOW
+tl0_s3n: SPILL_WINDOW
+tl0_s4n: SPILL_WINDOW
+tl0_s5n: SPILL_WINDOW
+tl0_s6n: SPILL_WINDOW
+tl0_s7n: SPILL_WINDOW
+tl0_s0o: SPILL_WINDOW
+tl0_s1o: SPILL_WINDOW
+tl0_s2o: SPILL_WINDOW
+tl0_s3o: SPILL_WINDOW
+tl0_s4o: SPILL_WINDOW
+tl0_s5o: SPILL_WINDOW
+tl0_s6o: SPILL_WINDOW
+tl0_s7o: SPILL_WINDOW
+tl0_f0n: FILL_WINDOW
+tl0_f1n: FILL_WINDOW
+tl0_f2n: FILL_WINDOW
+tl0_f3n: FILL_WINDOW
+tl0_f4n: FILL_WINDOW
+tl0_f5n: FILL_WINDOW
+tl0_f6n: FILL_WINDOW
+tl0_f7n: FILL_WINDOW
+tl0_f0o: FILL_WINDOW
+tl0_f1o: FILL_WINDOW
+tl0_f2o: FILL_WINDOW
+tl0_f3o: FILL_WINDOW
+tl0_f4o: FILL_WINDOW
+tl0_f5o: FILL_WINDOW
+tl0_f6o: FILL_WINDOW
+tl0_f7o: FILL_WINDOW
tl0_resv100: BTRAPS(0x100) BTRAPS(0x108)
tl0_resv110: BTRAPS(0x110) BTRAPS(0x118)
tl0_resv120: BTRAPS(0x120) BTRAPS(0x128)
@@ -151,38 +203,38 @@
BTRAPS(0x50) BTRAPS(0x58)
BTRAPS(0x60) BTRAPS(0x68)
BTRAPS(0x70) BTRAPS(0x78)
-tl1_s0n: SPILL_0_NORMAL
-tl1_s1n: SPILL_1_NORMAL
-tl1_s2n: SPILL_2_NORMAL
-tl1_s3n: SPILL_3_NORMAL
-tl1_s4n: SPILL_4_NORMAL
-tl1_s5n: SPILL_5_NORMAL
-tl1_s6n: SPILL_6_NORMAL
-tl1_s7n: SPILL_7_NORMAL
-tl1_s0o: SPILL_0_OTHER
-tl1_s1o: SPILL_1_OTHER
-tl1_s2o: SPILL_2_OTHER
-tl1_s3o: SPILL_3_OTHER
-tl1_s4o: SPILL_4_OTHER
-tl1_s5o: SPILL_5_OTHER
-tl1_s6o: SPILL_6_OTHER
-tl1_s7o: SPILL_7_OTHER
-tl1_f0n: FILL_0_NORMAL
-tl1_f1n: FILL_1_NORMAL
-tl1_f2n: FILL_2_NORMAL
-tl1_f3n: FILL_3_NORMAL
-tl1_f4n: FILL_4_NORMAL
-tl1_f5n: FILL_5_NORMAL
-tl1_f6n: FILL_6_NORMAL
-tl1_f7n: FILL_7_NORMAL
-tl1_f0o: FILL_0_OTHER
-tl1_f1o: FILL_1_OTHER
-tl1_f2o: FILL_2_OTHER
-tl1_f3o: FILL_3_OTHER
-tl1_f4o: FILL_4_OTHER
-tl1_f5o: FILL_5_OTHER
-tl1_f6o: FILL_6_OTHER
-tl1_f7o: FILL_7_OTHER
+tl1_s0n: SPILL_WINDOW
+tl1_s1n: SPILL_WINDOW
+tl1_s2n: SPILL_WINDOW
+tl1_s3n: SPILL_WINDOW
+tl1_s4n: SPILL_WINDOW
+tl1_s5n: SPILL_WINDOW
+tl1_s6n: SPILL_WINDOW
+tl1_s7n: SPILL_WINDOW
+tl1_s0o: SPILL_WINDOW
+tl1_s1o: SPILL_WINDOW
+tl1_s2o: SPILL_WINDOW
+tl1_s3o: SPILL_WINDOW
+tl1_s4o: SPILL_WINDOW
+tl1_s5o: SPILL_WINDOW
+tl1_s6o: SPILL_WINDOW
+tl1_s7o: SPILL_WINDOW
+tl1_f0n: FILL_WINDOW
+tl1_f1n: FILL_WINDOW
+tl1_f2n: FILL_WINDOW
+tl1_f3n: FILL_WINDOW
+tl1_f4n: FILL_WINDOW
+tl1_f5n: FILL_WINDOW
+tl1_f6n: FILL_WINDOW
+tl1_f7n: FILL_WINDOW
+tl1_f0o: FILL_WINDOW
+tl1_f1o: FILL_WINDOW
+tl1_f2o: FILL_WINDOW
+tl1_f3o: FILL_WINDOW
+tl1_f4o: FILL_WINDOW
+tl1_f5o: FILL_WINDOW
+tl1_f6o: FILL_WINDOW
+tl1_f7o: FILL_WINDOW
tl1_resv100: BTRAPS(0x100) BTRAPS(0x108)
tl1_resv110: BTRAPS(0x110) BTRAPS(0x118)
tl1_resv120: BTRAPS(0x120) BTRAPS(0x128)
@@ -200,12 +252,48 @@
tl1_resv1e0: BTRAPS(0x1e0) BTRAPS(0x1e8)
tl1_resv1f0: BTRAPS(0x1f0) BTRAPS(0x1f8)
-spill_fixup:
-spill_fixup_dax:
-spill_fixup_mna:
-fill_fixup:
-fill_fixup_dax:
-fill_fixup_mna:
+spill_32bit:
+ srl %sp, 0, %sp
+ stw %l0, [%sp + 0x00]
+ stw %l1, [%sp + 0x04]
+ stw %l2, [%sp + 0x08]
+ stw %l3, [%sp + 0x0c]
+ stw %l4, [%sp + 0x10]
+ stw %l5, [%sp + 0x14]
+ stw %l6, [%sp + 0x18]
+ stw %l7, [%sp + 0x1c]
+ stw %i0, [%sp + 0x20]
+ stw %i1, [%sp + 0x24]
+ stw %i2, [%sp + 0x28]
+ stw %i3, [%sp + 0x2c]
+ stw %i4, [%sp + 0x30]
+ stw %i5, [%sp + 0x34]
+ stw %i6, [%sp + 0x38]
+ stw %i7, [%sp + 0x3c]
+ saved
+ retry
+
+fill_32bit:
+ srl %sp, 0, %sp
+ lduw [%sp + 0x00], %l0
+ lduw [%sp + 0x04], %l1
+ lduw [%sp + 0x08], %l2
+ lduw [%sp + 0x0c], %l3
+ lduw [%sp + 0x10], %l4
+ lduw [%sp + 0x14], %l5
+ lduw [%sp + 0x18], %l6
+ lduw [%sp + 0x1c], %l7
+ lduw [%sp + 0x20], %i0
+ lduw [%sp + 0x24], %i1
+ lduw [%sp + 0x28], %i2
+ lduw [%sp + 0x2c], %i3
+ lduw [%sp + 0x30], %i4
+ lduw [%sp + 0x34], %i5
+ lduw [%sp + 0x38], %i6
+ lduw [%sp + 0x3c], %i7
+ restored
+ retry
+
__divide_error:
bug:
/* Dump the exception and its context */
@@ -312,8 +400,6 @@
retl
nop
-//#include "winfixup.S"
-
.section .rodata
_BUG_message_0:
.string "Unhandled Exception 0x"
Deleted: openbios-devel/arch/sparc64/winfixup.S
===================================================================
--- openbios-devel/arch/sparc64/winfixup.S 2008-07-16 16:51:39 UTC (rev 204)
+++ openbios-devel/arch/sparc64/winfixup.S 2008-07-17 12:48:11 UTC (rev 205)
@@ -1,240 +0,0 @@
-/* $Id: winfixup.S,v 1.30 2002/02/09 19:49:30 davem Exp $
- *
- * winfixup.S: Handle cases where user stack pointer is found to be bogus.
- *
- * Copyright (C) 1997 David S. Miller (davem at caip.rutgers.edu)
- */
-
-#include "asi.h"
-#include "spitfire.h"
-#if 0
-#include <asm/head.h>
-#include <asm/page.h>
-#include <asm/ptrace.h>
-#include <asm/processor.h>
-#include <asm/thread_info.h>
-#else
-#define FAULT_CODE_WRITE 0x01 /* Write access, implies D-TLB */
-#define FAULT_CODE_DTLB 0x02 /* Miss happened in D-TLB */
-#define FAULT_CODE_ITLB 0x04 /* Miss happened in I-TLB */
-#define FAULT_CODE_WINFIXUP 0x08 /* Miss happened during spill/fill */
-#define FAULT_CODE_BLKCOMMIT 0x10 /* Use blk-commit ASI in copy_page */
-#endif
- .text
- .align 32
-
- /* Here are the rules, pay attention.
- *
- * The kernel is disallowed from touching user space while
- * the trap level is greater than zero, except for from within
- * the window spill/fill handlers. This must be followed
- * so that we can easily detect the case where we tried to
- * spill/fill with a bogus (or unmapped) user stack pointer.
- *
- * These are layed out in a special way for cache reasons,
- * don't touch...
- */
- .globl fill_fixup, spill_fixup
-fill_fixup:
- rdpr %tstate, %g1
- or %g4, FAULT_CODE_WINFIXUP, %g4
- and %g1, TSTATE_CWP, %g1
-
- /* This is the extremely complex case, but it does happen from
- * time to time if things are just right. Essentially the restore
- * done in rtrap right before going back to user mode, with tl=1
- * and that levels trap stack registers all setup, took a fill trap,
- * the user stack was not mapped in the tlb, and tlb miss occurred,
- * the pte found was not valid, and a simple ref bit watch update
- * could not satisfy the miss, so we got here.
- *
- * We must carefully unwind the state so we get back to tl=0, preserve
- * all the register values we were going to give to the user. Luckily
- * most things are where they need to be, we also have the address
- * which triggered the fault handy as well.
- *
- * Also note that we must preserve %l5 and %l6. If the user was
- * returning from a system call, we must make it look this way
- * after we process the fill fault on the users stack.
- *
- * First, get into the window where the original restore was executed.
- */
-
- rdpr %wstate, %g2 ! Grab user mode wstate.
- wrpr %g1, %cwp ! Get into the right window.
- sll %g2, 3, %g2 ! NORMAL-->OTHER
-
- wrpr %g0, 0x0, %canrestore ! Standard etrap stuff.
- wrpr %g2, 0x0, %wstate ! This must be consistent.
- wrpr %g0, 0x0, %otherwin ! We know this.
- mov PRIMARY_CONTEXT, %g1 ! Change contexts...
- stxa %g0, [%g1] ASI_DMMU ! Back into the nucleus.
- flush %g6 ! Flush instruction buffers
- rdpr %pstate, %l1 ! Prepare to change globals.
- mov %g6, %o7 ! Get current.
-
- andn %l1, PSTATE_MM, %l1 ! We want to be in RMO
- stb %g4, [%g6 + TI_FAULT_CODE]
- stx %g5, [%g6 + TI_FAULT_ADDR]
- wrpr %g0, 0x0, %tl ! Out of trap levels.
- wrpr %l1, (PSTATE_IE | PSTATE_AG | PSTATE_RMO), %pstate
- mov %o7, %g6
- ldx [%g6 + TI_TASK], %g4
-
- /* This is the same as below, except we handle this a bit special
- * since we must preserve %l5 and %l6, see comment above.
- */
- call do_sparc64_fault
- add %sp, PTREGS_OFF, %o0
- ba,pt %xcc, rtrap
- nop ! yes, nop is correct
-
- /* Be very careful about usage of the alternate globals here.
- * You cannot touch %g4/%g5 as that has the fault information
- * should this be from usermode. Also be careful for the case
- * where we get here from the save instruction in etrap.S when
- * coming from either user or kernel (does not matter which, it
- * is the same problem in both cases). Essentially this means
- * do not touch %g7 or %g2 so we handle the two cases fine.
- */
-spill_fixup:
- ldx [%g6 + TI_FLAGS], %g1
- andcc %g1, _TIF_32BIT, %g0
- ldub [%g6 + TI_WSAVED], %g1
-
- sll %g1, 3, %g3
- add %g6, %g3, %g3
- stx %sp, [%g3 + TI_RWIN_SPTRS]
- sll %g1, 7, %g3
- bne,pt %xcc, 1f
- add %g6, %g3, %g3
- stx %l0, [%g3 + TI_REG_WINDOW + 0x00]
- stx %l1, [%g3 + TI_REG_WINDOW + 0x08]
-
- stx %l2, [%g3 + TI_REG_WINDOW + 0x10]
- stx %l3, [%g3 + TI_REG_WINDOW + 0x18]
- stx %l4, [%g3 + TI_REG_WINDOW + 0x20]
- stx %l5, [%g3 + TI_REG_WINDOW + 0x28]
- stx %l6, [%g3 + TI_REG_WINDOW + 0x30]
- stx %l7, [%g3 + TI_REG_WINDOW + 0x38]
- stx %i0, [%g3 + TI_REG_WINDOW + 0x40]
- stx %i1, [%g3 + TI_REG_WINDOW + 0x48]
-
- stx %i2, [%g3 + TI_REG_WINDOW + 0x50]
- stx %i3, [%g3 + TI_REG_WINDOW + 0x58]
- stx %i4, [%g3 + TI_REG_WINDOW + 0x60]
- stx %i5, [%g3 + TI_REG_WINDOW + 0x68]
- stx %i6, [%g3 + TI_REG_WINDOW + 0x70]
- b,pt %xcc, 2f
- stx %i7, [%g3 + TI_REG_WINDOW + 0x78]
-1: stw %l0, [%g3 + TI_REG_WINDOW + 0x00]
-
- stw %l1, [%g3 + TI_REG_WINDOW + 0x04]
- stw %l2, [%g3 + TI_REG_WINDOW + 0x08]
- stw %l3, [%g3 + TI_REG_WINDOW + 0x0c]
- stw %l4, [%g3 + TI_REG_WINDOW + 0x10]
- stw %l5, [%g3 + TI_REG_WINDOW + 0x14]
- stw %l6, [%g3 + TI_REG_WINDOW + 0x18]
- stw %l7, [%g3 + TI_REG_WINDOW + 0x1c]
- stw %i0, [%g3 + TI_REG_WINDOW + 0x20]
-
- stw %i1, [%g3 + TI_REG_WINDOW + 0x24]
- stw %i2, [%g3 + TI_REG_WINDOW + 0x28]
- stw %i3, [%g3 + TI_REG_WINDOW + 0x2c]
- stw %i4, [%g3 + TI_REG_WINDOW + 0x30]
- stw %i5, [%g3 + TI_REG_WINDOW + 0x34]
- stw %i6, [%g3 + TI_REG_WINDOW + 0x38]
- stw %i7, [%g3 + TI_REG_WINDOW + 0x3c]
-2: add %g1, 1, %g1
-
- stb %g1, [%g6 + TI_WSAVED]
- rdpr %tstate, %g1
- saved
- and %g1, TSTATE_CWP, %g1
- mov FAULT_CODE_WRITE | FAULT_CODE_DTLB | FAULT_CODE_WINFIXUP, %g4
- retry
-
- .globl winfix_mna, fill_fixup_mna, spill_fixup_mna
-winfix_mna:
- andn %g3, 0x7f, %g3
- add %g3, 0x78, %g3
- wrpr %g3, %tnpc
- done
-fill_fixup_mna:
- rdpr %tstate, %g1
- and %g1, TSTATE_CWP, %g1
-
- /* Please, see fill_fixup commentary about why we must preserve
- * %l5 and %l6 to preserve absolute correct semantics.
- */
- rdpr %wstate, %g2 ! Grab user mode wstate.
- wrpr %g1, %cwp ! Get into the right window.
- sll %g2, 3, %g2 ! NORMAL-->OTHER
- wrpr %g0, 0x0, %canrestore ! Standard etrap stuff.
-
- wrpr %g2, 0x0, %wstate ! This must be consistent.
- wrpr %g0, 0x0, %otherwin ! We know this.
- mov PRIMARY_CONTEXT, %g1 ! Change contexts...
- stxa %g0, [%g1] ASI_DMMU ! Back into the nucleus.
- flush %g6 ! Flush instruction buffers
- rdpr %pstate, %l1 ! Prepare to change globals.
- mov %g4, %o2 ! Setup args for
- mov %g5, %o1 ! final call to mem_address_unaligned.
- andn %l1, PSTATE_MM, %l1 ! We want to be in RMO
-
- mov %g6, %o7 ! Stash away current.
- wrpr %g0, 0x0, %tl ! Out of trap levels.
- wrpr %l1, (PSTATE_IE | PSTATE_AG | PSTATE_RMO), %pstate
- mov %o7, %g6 ! Get current back.
- ldx [%g6 + TI_TASK], %g4 ! Finish it.
- call mem_address_unaligned
- add %sp, PTREGS_OFF, %o0
-
- b,pt %xcc, rtrap
- nop ! yes, the nop is correct
-spill_fixup_mna:
- ldx [%g6 + TI_FLAGS], %g1
- andcc %g1, _TIF_32BIT, %g0
- ldub [%g6 + TI_WSAVED], %g1
- sll %g1, 3, %g3
- add %g6, %g3, %g3
- stx %sp, [%g3 + TI_RWIN_SPTRS]
-
- sll %g1, 7, %g3
- bne,pt %xcc, 1f
- add %g6, %g3, %g3
- stx %l0, [%g3 + TI_REG_WINDOW + 0x00]
- stx %l1, [%g3 + TI_REG_WINDOW + 0x08]
- stx %l2, [%g3 + TI_REG_WINDOW + 0x10]
- stx %l3, [%g3 + TI_REG_WINDOW + 0x18]
- stx %l4, [%g3 + TI_REG_WINDOW + 0x20]
-
- stx %l5, [%g3 + TI_REG_WINDOW + 0x28]
- stx %l6, [%g3 + TI_REG_WINDOW + 0x30]
- stx %l7, [%g3 + TI_REG_WINDOW + 0x38]
- stx %i0, [%g3 + TI_REG_WINDOW + 0x40]
- stx %i1, [%g3 + TI_REG_WINDOW + 0x48]
- stx %i2, [%g3 + TI_REG_WINDOW + 0x50]
- stx %i3, [%g3 + TI_REG_WINDOW + 0x58]
- stx %i4, [%g3 + TI_REG_WINDOW + 0x60]
-
- stx %i5, [%g3 + TI_REG_WINDOW + 0x68]
- stx %i6, [%g3 + TI_REG_WINDOW + 0x70]
- stx %i7, [%g3 + TI_REG_WINDOW + 0x78]
- b,pt %xcc, 2f
- add %g1, 1, %g1
-1: std %l0, [%g3 + TI_REG_WINDOW + 0x00]
- std %l2, [%g3 + TI_REG_WINDOW + 0x08]
- std %l4, [%g3 + TI_REG_WINDOW + 0x10]
-
- std %l6, [%g3 + TI_REG_WINDOW + 0x18]
- std %i0, [%g3 + TI_REG_WINDOW + 0x20]
- std %i2, [%g3 + TI_REG_WINDOW + 0x28]
- std %i4, [%g3 + TI_REG_WINDOW + 0x30]
- std %i6, [%g3 + TI_REG_WINDOW + 0x38]
- add %g1, 1, %g1
-2: stb %g1, [%g6 + TI_WSAVED]
-
- saved
- retry
-
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