Remove all inclusions of <linux/config.h>
[linux-3.10.git] / arch / um / kernel / skas / tlb.c
1 /* 
2  * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
3  * Copyright 2003 PathScale, Inc.
4  * Licensed under the GPL
5  */
6
7 #include "linux/stddef.h"
8 #include "linux/sched.h"
9 #include "linux/mm.h"
10 #include "asm/page.h"
11 #include "asm/pgtable.h"
12 #include "asm/mmu.h"
13 #include "user_util.h"
14 #include "mem_user.h"
15 #include "mem.h"
16 #include "skas.h"
17 #include "os.h"
18 #include "tlb.h"
19
20 static int do_ops(union mm_context *mmu, struct host_vm_op *ops, int last,
21                   int finished, void **flush)
22 {
23         struct host_vm_op *op;
24         int i, ret = 0;
25
26         for(i = 0; i <= last && !ret; i++){
27                 op = &ops[i];
28                 switch(op->type){
29                 case MMAP:
30                         ret = map(&mmu->skas.id, op->u.mmap.addr,
31                                   op->u.mmap.len, op->u.mmap.r, op->u.mmap.w,
32                                   op->u.mmap.x, op->u.mmap.fd,
33                                   op->u.mmap.offset, finished, flush);
34                         break;
35                 case MUNMAP:
36                         ret = unmap(&mmu->skas.id,
37                                     (void *) op->u.munmap.addr,
38                                     op->u.munmap.len, finished, flush);
39                         break;
40                 case MPROTECT:
41                         ret = protect(&mmu->skas.id, op->u.mprotect.addr,
42                                       op->u.mprotect.len, op->u.mprotect.r,
43                                       op->u.mprotect.w, op->u.mprotect.x,
44                                       finished, flush);
45                         break;
46                 default:
47                         printk("Unknown op type %d in do_ops\n", op->type);
48                         break;
49                 }
50         }
51
52         return ret;
53 }
54
55 extern int proc_mm;
56
57 static void fix_range(struct mm_struct *mm, unsigned long start_addr,
58                       unsigned long end_addr, int force)
59 {
60         if(!proc_mm && (end_addr > CONFIG_STUB_START))
61                 end_addr = CONFIG_STUB_START;
62
63         fix_range_common(mm, start_addr, end_addr, force, do_ops);
64 }
65
66 void __flush_tlb_one_skas(unsigned long addr)
67 {
68         flush_tlb_kernel_range_common(addr, addr + PAGE_SIZE);
69 }
70
71 void flush_tlb_range_skas(struct vm_area_struct *vma, unsigned long start, 
72                      unsigned long end)
73 {
74         if(vma->vm_mm == NULL)
75                 flush_tlb_kernel_range_common(start, end);
76         else fix_range(vma->vm_mm, start, end, 0);
77 }
78
79 void flush_tlb_mm_skas(struct mm_struct *mm)
80 {
81         unsigned long end;
82
83         /* Don't bother flushing if this address space is about to be
84          * destroyed.
85          */
86         if(atomic_read(&mm->mm_users) == 0)
87                 return;
88
89         end = proc_mm ? task_size : CONFIG_STUB_START;
90         fix_range(mm, 0, end, 0);
91 }
92
93 void force_flush_all_skas(void)
94 {
95         unsigned long end = proc_mm ? task_size : CONFIG_STUB_START;
96         fix_range(current->mm, 0, end, 1);
97 }