diff options
Diffstat (limited to 'arch/m32r')
| -rw-r--r-- | arch/m32r/Kconfig | 5 | ||||
| -rw-r--r-- | arch/m32r/Makefile | 2 | ||||
| -rw-r--r-- | arch/m32r/kernel/entry.S | 9 | ||||
| -rw-r--r-- | arch/m32r/kernel/smp.c | 12 | ||||
| -rw-r--r-- | arch/m32r/kernel/traps.c | 33 | ||||
| -rw-r--r-- | arch/m32r/lib/usercopy.c | 16 |
6 files changed, 42 insertions, 35 deletions
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig index 1ef3987ebc6a..4d100f3886e1 100644 --- a/arch/m32r/Kconfig +++ b/arch/m32r/Kconfig @@ -220,11 +220,6 @@ config PREEMPT Say Y here if you are building a kernel for a desktop, embedded or real-time system. Say N if you are unsure. -config HAVE_DEC_LOCK - bool - depends on (SMP || PREEMPT) - default n - config SMP bool "Symmetric multi-processing support" ---help--- diff --git a/arch/m32r/Makefile b/arch/m32r/Makefile index dd4418d846e9..983d438b14b6 100644 --- a/arch/m32r/Makefile +++ b/arch/m32r/Makefile @@ -24,7 +24,7 @@ aflags-$(CONFIG_ISA_M32R) += -DNO_FPU -Wa,-no-bitinst CFLAGS += $(cflags-y) AFLAGS += $(aflags-y) -CHECKFLAGS := $(CHECK) -D__m32r__ +CHECKFLAGS += -D__m32r__ -D__BIG_ENDIAN__=1 head-y := arch/m32r/kernel/head.o arch/m32r/kernel/init_task.o diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S index dddbf6b5ed2c..85920fb8d08c 100644 --- a/arch/m32r/kernel/entry.S +++ b/arch/m32r/kernel/entry.S @@ -681,6 +681,15 @@ ENTRY(debug_trap) bl do_debug_trap bra error_code +ENTRY(ill_trap) + /* void ill_trap(void) */ + SWITCH_TO_KERNEL_STACK + SAVE_ALL + ldi r1, #0 ; error_code ; FIXME + mv r0, sp ; pt_regs + bl do_ill_trap + bra error_code + /* Cache flushing handler */ ENTRY(cache_flushing_handler) diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c index a4576ac7e870..8b1f6eb76870 100644 --- a/arch/m32r/kernel/smp.c +++ b/arch/m32r/kernel/smp.c @@ -275,12 +275,14 @@ static void flush_tlb_all_ipi(void *info) *==========================================================================*/ void smp_flush_tlb_mm(struct mm_struct *mm) { - int cpu_id = smp_processor_id(); + int cpu_id; cpumask_t cpu_mask; - unsigned long *mmc = &mm->context[cpu_id]; + unsigned long *mmc; unsigned long flags; preempt_disable(); + cpu_id = smp_processor_id(); + mmc = &mm->context[cpu_id]; cpu_mask = mm->cpu_vm_mask; cpu_clear(cpu_id, cpu_mask); @@ -343,12 +345,14 @@ void smp_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va) { struct mm_struct *mm = vma->vm_mm; - int cpu_id = smp_processor_id(); + int cpu_id; cpumask_t cpu_mask; - unsigned long *mmc = &mm->context[cpu_id]; + unsigned long *mmc; unsigned long flags; preempt_disable(); + cpu_id = smp_processor_id(); + mmc = &mm->context[cpu_id]; cpu_mask = mm->cpu_vm_mask; cpu_clear(cpu_id, cpu_mask); diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c index 01922271d17e..5fe8ed6d62dc 100644 --- a/arch/m32r/kernel/traps.c +++ b/arch/m32r/kernel/traps.c @@ -5,8 +5,6 @@ * Hitoshi Yamamoto */ -/* $Id$ */ - /* * 'traps.c' handles hardware traps and faults after we have saved some * state in 'entry.S'. @@ -35,6 +33,7 @@ asmlinkage void ei_handler(void); asmlinkage void rie_handler(void); asmlinkage void debug_trap(void); asmlinkage void cache_flushing_handler(void); +asmlinkage void ill_trap(void); #ifdef CONFIG_SMP extern void smp_reschedule_interrupt(void); @@ -77,22 +76,22 @@ void set_eit_vector_entries(void) eit_vector[5] = BRA_INSN(default_eit_handler, 5); eit_vector[8] = BRA_INSN(rie_handler, 8); eit_vector[12] = BRA_INSN(alignment_check, 12); - eit_vector[16] = 0xff000000UL; + eit_vector[16] = BRA_INSN(ill_trap, 16); eit_vector[17] = BRA_INSN(debug_trap, 17); eit_vector[18] = BRA_INSN(system_call, 18); - eit_vector[19] = 0xff000000UL; - eit_vector[20] = 0xff000000UL; - eit_vector[21] = 0xff000000UL; - eit_vector[22] = 0xff000000UL; - eit_vector[23] = 0xff000000UL; - eit_vector[24] = 0xff000000UL; - eit_vector[25] = 0xff000000UL; - eit_vector[26] = 0xff000000UL; - eit_vector[27] = 0xff000000UL; + eit_vector[19] = BRA_INSN(ill_trap, 19); + eit_vector[20] = BRA_INSN(ill_trap, 20); + eit_vector[21] = BRA_INSN(ill_trap, 21); + eit_vector[22] = BRA_INSN(ill_trap, 22); + eit_vector[23] = BRA_INSN(ill_trap, 23); + eit_vector[24] = BRA_INSN(ill_trap, 24); + eit_vector[25] = BRA_INSN(ill_trap, 25); + eit_vector[26] = BRA_INSN(ill_trap, 26); + eit_vector[27] = BRA_INSN(ill_trap, 27); eit_vector[28] = BRA_INSN(cache_flushing_handler, 28); - eit_vector[29] = 0xff000000UL; - eit_vector[30] = 0xff000000UL; - eit_vector[31] = 0xff000000UL; + eit_vector[29] = BRA_INSN(ill_trap, 29); + eit_vector[30] = BRA_INSN(ill_trap, 30); + eit_vector[31] = BRA_INSN(ill_trap, 31); eit_vector[32] = BRA_INSN(ei_handler, 32); eit_vector[64] = BRA_INSN(pie_handler, 64); #ifdef CONFIG_MMU @@ -286,7 +285,8 @@ asmlinkage void do_##name(struct pt_regs * regs, long error_code) \ DO_ERROR( 1, SIGTRAP, "debug trap", debug_trap) DO_ERROR_INFO(0x20, SIGILL, "reserved instruction ", rie_handler, ILL_ILLOPC, regs->bpc) -DO_ERROR_INFO(0x100, SIGILL, "privilege instruction", pie_handler, ILL_PRVOPC, regs->bpc) +DO_ERROR_INFO(0x100, SIGILL, "privileged instruction", pie_handler, ILL_PRVOPC, regs->bpc) +DO_ERROR_INFO(-1, SIGILL, "illegal trap", ill_trap, ILL_ILLTRP, regs->bpc) extern int handle_unaligned_access(unsigned long, struct pt_regs *); @@ -329,4 +329,3 @@ asmlinkage void do_alignment_check(struct pt_regs *regs, long error_code) set_fs(oldfs); } } - diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c index 6c6855f1aa05..ce16bbe26a52 100644 --- a/arch/m32r/lib/usercopy.c +++ b/arch/m32r/lib/usercopy.c @@ -13,7 +13,7 @@ #include <asm/uaccess.h> unsigned long -__generic_copy_to_user(void *to, const void *from, unsigned long n) +__generic_copy_to_user(void __user *to, const void *from, unsigned long n) { prefetch(from); if (access_ok(VERIFY_WRITE, to, n)) @@ -22,7 +22,7 @@ __generic_copy_to_user(void *to, const void *from, unsigned long n) } unsigned long -__generic_copy_from_user(void *to, const void *from, unsigned long n) +__generic_copy_from_user(void *to, const void __user *from, unsigned long n) { prefetchw(to); if (access_ok(VERIFY_READ, from, n)) @@ -111,7 +111,7 @@ do { \ #endif /* CONFIG_ISA_DUAL_ISSUE */ long -__strncpy_from_user(char *dst, const char *src, long count) +__strncpy_from_user(char *dst, const char __user *src, long count) { long res; __do_strncpy_from_user(dst, src, count, res); @@ -119,7 +119,7 @@ __strncpy_from_user(char *dst, const char *src, long count) } long -strncpy_from_user(char *dst, const char *src, long count) +strncpy_from_user(char *dst, const char __user *src, long count) { long res = -EFAULT; if (access_ok(VERIFY_READ, src, 1)) @@ -222,7 +222,7 @@ do { \ #endif /* not CONFIG_ISA_DUAL_ISSUE */ unsigned long -clear_user(void *to, unsigned long n) +clear_user(void __user *to, unsigned long n) { if (access_ok(VERIFY_WRITE, to, n)) __do_clear_user(to, n); @@ -230,7 +230,7 @@ clear_user(void *to, unsigned long n) } unsigned long -__clear_user(void *to, unsigned long n) +__clear_user(void __user *to, unsigned long n) { __do_clear_user(to, n); return n; @@ -244,7 +244,7 @@ __clear_user(void *to, unsigned long n) #ifdef CONFIG_ISA_DUAL_ISSUE -long strnlen_user(const char *s, long n) +long strnlen_user(const char __user *s, long n) { unsigned long mask = -__addr_ok(s); unsigned long res; @@ -313,7 +313,7 @@ long strnlen_user(const char *s, long n) #else /* not CONFIG_ISA_DUAL_ISSUE */ -long strnlen_user(const char *s, long n) +long strnlen_user(const char __user *s, long n) { unsigned long mask = -__addr_ok(s); unsigned long res; |