diff options
Diffstat (limited to 'arch/m32r/mm/fault-nommu.c')
-rw-r--r-- | arch/m32r/mm/fault-nommu.c | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/arch/m32r/mm/fault-nommu.c b/arch/m32r/mm/fault-nommu.c deleted file mode 100644 index 240e00067d5e..000000000000 --- a/arch/m32r/mm/fault-nommu.c +++ /dev/null | |||
@@ -1,134 +0,0 @@ | |||
1 | // SPDX-License-Identifier: GPL-2.0 | ||
2 | /* | ||
3 | * linux/arch/m32r/mm/fault.c | ||
4 | * | ||
5 | * Copyright (c) 2001, 2002 Hitoshi Yamamoto, and H. Kondo | ||
6 | * | ||
7 | * Some code taken from i386 version. | ||
8 | * Copyright (C) 1995 Linus Torvalds | ||
9 | */ | ||
10 | |||
11 | #include <linux/signal.h> | ||
12 | #include <linux/sched.h> | ||
13 | #include <linux/kernel.h> | ||
14 | #include <linux/errno.h> | ||
15 | #include <linux/string.h> | ||
16 | #include <linux/types.h> | ||
17 | #include <linux/ptrace.h> | ||
18 | #include <linux/mman.h> | ||
19 | #include <linux/mm.h> | ||
20 | #include <linux/smp.h> | ||
21 | #include <linux/interrupt.h> | ||
22 | #include <linux/init.h> | ||
23 | #include <linux/vt_kern.h> /* For unblank_screen() */ | ||
24 | |||
25 | #include <asm/m32r.h> | ||
26 | #include <linux/uaccess.h> | ||
27 | #include <asm/pgalloc.h> | ||
28 | #include <asm/pgtable.h> | ||
29 | #include <asm/hardirq.h> | ||
30 | #include <asm/mmu_context.h> | ||
31 | |||
32 | extern void die(const char *, struct pt_regs *, long); | ||
33 | |||
34 | #ifndef CONFIG_SMP | ||
35 | asmlinkage unsigned int tlb_entry_i_dat; | ||
36 | asmlinkage unsigned int tlb_entry_d_dat; | ||
37 | #define tlb_entry_i tlb_entry_i_dat | ||
38 | #define tlb_entry_d tlb_entry_d_dat | ||
39 | #else | ||
40 | unsigned int tlb_entry_i_dat[NR_CPUS]; | ||
41 | unsigned int tlb_entry_d_dat[NR_CPUS]; | ||
42 | #define tlb_entry_i tlb_entry_i_dat[smp_processor_id()] | ||
43 | #define tlb_entry_d tlb_entry_d_dat[smp_processor_id()] | ||
44 | #endif | ||
45 | |||
46 | void do_BUG(const char *file, int line) | ||
47 | { | ||
48 | bust_spinlocks(1); | ||
49 | printk("kernel BUG at %s:%d!\n", file, line); | ||
50 | } | ||
51 | |||
52 | /*======================================================================* | ||
53 | * do_page_fault() | ||
54 | *======================================================================* | ||
55 | * This routine handles page faults. It determines the address, | ||
56 | * and the problem, and then passes it off to one of the appropriate | ||
57 | * routines. | ||
58 | * | ||
59 | * ARGUMENT: | ||
60 | * regs : M32R SP reg. | ||
61 | * error_code : See below | ||
62 | * address : M32R MMU MDEVA reg. (Operand ACE) | ||
63 | * : M32R BPC reg. (Instruction ACE) | ||
64 | * | ||
65 | * error_code : | ||
66 | * bit 0 == 0 means no page found, 1 means protection fault | ||
67 | * bit 1 == 0 means read, 1 means write | ||
68 | * bit 2 == 0 means kernel, 1 means user-mode | ||
69 | *======================================================================*/ | ||
70 | asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code, | ||
71 | unsigned long address) | ||
72 | { | ||
73 | |||
74 | /* | ||
75 | * Oops. The kernel tried to access some bad page. We'll have to | ||
76 | * terminate things with extreme prejudice. | ||
77 | */ | ||
78 | |||
79 | bust_spinlocks(1); | ||
80 | |||
81 | if (address < PAGE_SIZE) | ||
82 | printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference"); | ||
83 | else | ||
84 | printk(KERN_ALERT "Unable to handle kernel paging request"); | ||
85 | printk(" at virtual address %08lx\n",address); | ||
86 | printk(" printing bpc:\n"); | ||
87 | printk(KERN_ALERT "bpc = %08lx\n", regs->bpc); | ||
88 | |||
89 | die("Oops", regs, error_code); | ||
90 | bust_spinlocks(0); | ||
91 | do_exit(SIGKILL); | ||
92 | } | ||
93 | |||
94 | /*======================================================================* | ||
95 | * update_mmu_cache() | ||
96 | *======================================================================*/ | ||
97 | void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, | ||
98 | pte_t *ptep) | ||
99 | { | ||
100 | BUG(); | ||
101 | } | ||
102 | |||
103 | /*======================================================================* | ||
104 | * flush_tlb_page() : flushes one page | ||
105 | *======================================================================*/ | ||
106 | void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page) | ||
107 | { | ||
108 | BUG(); | ||
109 | } | ||
110 | |||
111 | /*======================================================================* | ||
112 | * flush_tlb_range() : flushes a range of pages | ||
113 | *======================================================================*/ | ||
114 | void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, | ||
115 | unsigned long end) | ||
116 | { | ||
117 | BUG(); | ||
118 | } | ||
119 | |||
120 | /*======================================================================* | ||
121 | * flush_tlb_mm() : flushes the specified mm context TLB's | ||
122 | *======================================================================*/ | ||
123 | void local_flush_tlb_mm(struct mm_struct *mm) | ||
124 | { | ||
125 | BUG(); | ||
126 | } | ||
127 | |||
128 | /*======================================================================* | ||
129 | * flush_tlb_all() : flushes all processes TLBs | ||
130 | *======================================================================*/ | ||
131 | void local_flush_tlb_all(void) | ||
132 | { | ||
133 | BUG(); | ||
134 | } | ||