diff options
| -rw-r--r-- | arch/m68k/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/m68k/kernel/traps_mm.c | 115 | ||||
| -rw-r--r-- | arch/m68k/kernel/vectors.c | 145 |
3 files changed, 146 insertions, 116 deletions
diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile index ca686708ae08..e7f0f2e5ad44 100644 --- a/arch/m68k/kernel/Makefile +++ b/arch/m68k/kernel/Makefile @@ -9,7 +9,7 @@ extra-y += vmlinux.lds obj-y := entry.o m68k_ksyms.o module.o process.o ptrace.o setup.o signal.o \ sys_m68k.o syscalltable.o time.o traps.o -obj-$(CONFIG_MMU) += ints.o devres.o +obj-$(CONFIG_MMU) += ints.o devres.o vectors.o devres-$(CONFIG_MMU) = ../../../kernel/irq/devres.o ifndef CONFIG_MMU_SUN3 diff --git a/arch/m68k/kernel/traps_mm.c b/arch/m68k/kernel/traps_mm.c index 4022bbc28878..227d48448c30 100644 --- a/arch/m68k/kernel/traps_mm.c +++ b/arch/m68k/kernel/traps_mm.c @@ -39,121 +39,6 @@ #include <asm/machdep.h> #include <asm/siginfo.h> -/* assembler routines */ -asmlinkage void system_call(void); -asmlinkage void buserr(void); -asmlinkage void trap(void); -asmlinkage void nmihandler(void); -#ifdef CONFIG_M68KFPU_EMU -asmlinkage void fpu_emu(void); -#endif - -e_vector vectors[256]; - -/* nmi handler for the Amiga */ -asm(".text\n" - __ALIGN_STR "\n" - "nmihandler: rte"); - -/* - * this must be called very early as the kernel might - * use some instruction that are emulated on the 060 - * and so we're prepared for early probe attempts (e.g. nf_init). - */ -void __init base_trap_init(void) -{ - if (MACH_IS_SUN3X) { - extern e_vector *sun3x_prom_vbr; - - __asm__ volatile ("movec %%vbr, %0" : "=r" (sun3x_prom_vbr)); - } - - /* setup the exception vector table */ - __asm__ volatile ("movec %0,%%vbr" : : "r" ((void*)vectors)); - - if (CPU_IS_060) { - /* set up ISP entry points */ - asmlinkage void unimp_vec(void) asm ("_060_isp_unimp"); - - vectors[VEC_UNIMPII] = unimp_vec; - } - - vectors[VEC_BUSERR] = buserr; - vectors[VEC_ILLEGAL] = trap; - vectors[VEC_SYS] = system_call; -} - -void __init trap_init (void) -{ - int i; - - for (i = VEC_SPUR; i <= VEC_INT7; i++) - vectors[i] = bad_inthandler; - - for (i = 0; i < VEC_USER; i++) - if (!vectors[i]) - vectors[i] = trap; - - for (i = VEC_USER; i < 256; i++) - vectors[i] = bad_inthandler; - -#ifdef CONFIG_M68KFPU_EMU - if (FPU_IS_EMU) - vectors[VEC_LINE11] = fpu_emu; -#endif - - if (CPU_IS_040 && !FPU_IS_EMU) { - /* set up FPSP entry points */ - asmlinkage void dz_vec(void) asm ("dz"); - asmlinkage void inex_vec(void) asm ("inex"); - asmlinkage void ovfl_vec(void) asm ("ovfl"); - asmlinkage void unfl_vec(void) asm ("unfl"); - asmlinkage void snan_vec(void) asm ("snan"); - asmlinkage void operr_vec(void) asm ("operr"); - asmlinkage void bsun_vec(void) asm ("bsun"); - asmlinkage void fline_vec(void) asm ("fline"); - asmlinkage void unsupp_vec(void) asm ("unsupp"); - - vectors[VEC_FPDIVZ] = dz_vec; - vectors[VEC_FPIR] = inex_vec; - vectors[VEC_FPOVER] = ovfl_vec; - vectors[VEC_FPUNDER] = unfl_vec; - vectors[VEC_FPNAN] = snan_vec; - vectors[VEC_FPOE] = operr_vec; - vectors[VEC_FPBRUC] = bsun_vec; - vectors[VEC_LINE11] = fline_vec; - vectors[VEC_FPUNSUP] = unsupp_vec; - } - - if (CPU_IS_060 && !FPU_IS_EMU) { - /* set up IFPSP entry points */ - asmlinkage void snan_vec6(void) asm ("_060_fpsp_snan"); - asmlinkage void operr_vec6(void) asm ("_060_fpsp_operr"); - asmlinkage void ovfl_vec6(void) asm ("_060_fpsp_ovfl"); - asmlinkage void unfl_vec6(void) asm ("_060_fpsp_unfl"); - asmlinkage void dz_vec6(void) asm ("_060_fpsp_dz"); - asmlinkage void inex_vec6(void) asm ("_060_fpsp_inex"); - asmlinkage void fline_vec6(void) asm ("_060_fpsp_fline"); - asmlinkage void unsupp_vec6(void) asm ("_060_fpsp_unsupp"); - asmlinkage void effadd_vec6(void) asm ("_060_fpsp_effadd"); - - vectors[VEC_FPNAN] = snan_vec6; - vectors[VEC_FPOE] = operr_vec6; - vectors[VEC_FPOVER] = ovfl_vec6; - vectors[VEC_FPUNDER] = unfl_vec6; - vectors[VEC_FPDIVZ] = dz_vec6; - vectors[VEC_FPIR] = inex_vec6; - vectors[VEC_LINE11] = fline_vec6; - vectors[VEC_FPUNSUP] = unsupp_vec6; - vectors[VEC_UNIMPEA] = effadd_vec6; - } - - /* if running on an amiga, make the NMI interrupt do nothing */ - if (MACH_IS_AMIGA) { - vectors[VEC_INT7] = nmihandler; - } -} - static const char *vec_names[] = { [VEC_RESETSP] = "RESET SP", diff --git a/arch/m68k/kernel/vectors.c b/arch/m68k/kernel/vectors.c new file mode 100644 index 000000000000..147b03fbc71e --- /dev/null +++ b/arch/m68k/kernel/vectors.c @@ -0,0 +1,145 @@ +/* + * vectors.c + * + * Copyright (C) 1993, 1994 by Hamish Macdonald + * + * 68040 fixes by Michael Rausch + * 68040 fixes by Martin Apel + * 68040 fixes and writeback by Richard Zidlicky + * 68060 fixes by Roman Hodek + * 68060 fixes by Jesper Skov + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +/* + * Sets up all exception vectors + */ +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/linkage.h> +#include <linux/init.h> +#include <linux/kallsyms.h> + +#include <asm/setup.h> +#include <asm/fpu.h> +#include <asm/system.h> +#include <asm/traps.h> + +/* assembler routines */ +asmlinkage void system_call(void); +asmlinkage void buserr(void); +asmlinkage void trap(void); +asmlinkage void nmihandler(void); +#ifdef CONFIG_M68KFPU_EMU +asmlinkage void fpu_emu(void); +#endif + +e_vector vectors[256]; + +/* nmi handler for the Amiga */ +asm(".text\n" + __ALIGN_STR "\n" + "nmihandler: rte"); + +/* + * this must be called very early as the kernel might + * use some instruction that are emulated on the 060 + * and so we're prepared for early probe attempts (e.g. nf_init). + */ +void __init base_trap_init(void) +{ + if (MACH_IS_SUN3X) { + extern e_vector *sun3x_prom_vbr; + + __asm__ volatile ("movec %%vbr, %0" : "=r" (sun3x_prom_vbr)); + } + + /* setup the exception vector table */ + __asm__ volatile ("movec %0,%%vbr" : : "r" ((void*)vectors)); + + if (CPU_IS_060) { + /* set up ISP entry points */ + asmlinkage void unimp_vec(void) asm ("_060_isp_unimp"); + + vectors[VEC_UNIMPII] = unimp_vec; + } + + vectors[VEC_BUSERR] = buserr; + vectors[VEC_ILLEGAL] = trap; + vectors[VEC_SYS] = system_call; +} + +void __init trap_init (void) +{ + int i; + + for (i = VEC_SPUR; i <= VEC_INT7; i++) + vectors[i] = bad_inthandler; + + for (i = 0; i < VEC_USER; i++) + if (!vectors[i]) + vectors[i] = trap; + + for (i = VEC_USER; i < 256; i++) + vectors[i] = bad_inthandler; + +#ifdef CONFIG_M68KFPU_EMU + if (FPU_IS_EMU) + vectors[VEC_LINE11] = fpu_emu; +#endif + + if (CPU_IS_040 && !FPU_IS_EMU) { + /* set up FPSP entry points */ + asmlinkage void dz_vec(void) asm ("dz"); + asmlinkage void inex_vec(void) asm ("inex"); + asmlinkage void ovfl_vec(void) asm ("ovfl"); + asmlinkage void unfl_vec(void) asm ("unfl"); + asmlinkage void snan_vec(void) asm ("snan"); + asmlinkage void operr_vec(void) asm ("operr"); + asmlinkage void bsun_vec(void) asm ("bsun"); + asmlinkage void fline_vec(void) asm ("fline"); + asmlinkage void unsupp_vec(void) asm ("unsupp"); + + vectors[VEC_FPDIVZ] = dz_vec; + vectors[VEC_FPIR] = inex_vec; + vectors[VEC_FPOVER] = ovfl_vec; + vectors[VEC_FPUNDER] = unfl_vec; + vectors[VEC_FPNAN] = snan_vec; + vectors[VEC_FPOE] = operr_vec; + vectors[VEC_FPBRUC] = bsun_vec; + vectors[VEC_LINE11] = fline_vec; + vectors[VEC_FPUNSUP] = unsupp_vec; + } + + if (CPU_IS_060 && !FPU_IS_EMU) { + /* set up IFPSP entry points */ + asmlinkage void snan_vec6(void) asm ("_060_fpsp_snan"); + asmlinkage void operr_vec6(void) asm ("_060_fpsp_operr"); + asmlinkage void ovfl_vec6(void) asm ("_060_fpsp_ovfl"); + asmlinkage void unfl_vec6(void) asm ("_060_fpsp_unfl"); + asmlinkage void dz_vec6(void) asm ("_060_fpsp_dz"); + asmlinkage void inex_vec6(void) asm ("_060_fpsp_inex"); + asmlinkage void fline_vec6(void) asm ("_060_fpsp_fline"); + asmlinkage void unsupp_vec6(void) asm ("_060_fpsp_unsupp"); + asmlinkage void effadd_vec6(void) asm ("_060_fpsp_effadd"); + + vectors[VEC_FPNAN] = snan_vec6; + vectors[VEC_FPOE] = operr_vec6; + vectors[VEC_FPOVER] = ovfl_vec6; + vectors[VEC_FPUNDER] = unfl_vec6; + vectors[VEC_FPDIVZ] = dz_vec6; + vectors[VEC_FPIR] = inex_vec6; + vectors[VEC_LINE11] = fline_vec6; + vectors[VEC_FPUNSUP] = unsupp_vec6; + vectors[VEC_UNIMPEA] = effadd_vec6; + } + + /* if running on an amiga, make the NMI interrupt do nothing */ + if (MACH_IS_AMIGA) { + vectors[VEC_INT7] = nmihandler; + } +} + |
