diff options
Diffstat (limited to 'arch/um/include/tlb.h')
-rw-r--r-- | arch/um/include/tlb.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/um/include/tlb.h b/arch/um/include/tlb.h new file mode 100644 index 000000000000..da1097285b8c --- /dev/null +++ b/arch/um/include/tlb.h @@ -0,0 +1,67 @@ +/* + * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#ifndef __TLB_H__ +#define __TLB_H__ + +#include "um_mmu.h" + +struct host_vm_op { + enum { MMAP, MUNMAP, MPROTECT } type; + union { + struct { + unsigned long addr; + unsigned long len; + unsigned int r:1; + unsigned int w:1; + unsigned int x:1; + int fd; + __u64 offset; + } mmap; + struct { + unsigned long addr; + unsigned long len; + } munmap; + struct { + unsigned long addr; + unsigned long len; + unsigned int r:1; + unsigned int w:1; + unsigned int x:1; + } mprotect; + } u; +}; + +extern void mprotect_kernel_vm(int w); +extern void force_flush_all(void); +extern void fix_range_common(struct mm_struct *mm, unsigned long start_addr, + unsigned long end_addr, int force, int data, + void (*do_ops)(int, struct host_vm_op *, int)); +extern int flush_tlb_kernel_range_common(unsigned long start, + unsigned long end); + +extern int add_mmap(unsigned long virt, unsigned long phys, unsigned long len, + int r, int w, int x, struct host_vm_op *ops, int index, + int last_filled, int data, + void (*do_ops)(int, struct host_vm_op *, int)); +extern int add_munmap(unsigned long addr, unsigned long len, + struct host_vm_op *ops, int index, int last_filled, + int data, void (*do_ops)(int, struct host_vm_op *, int)); +extern int add_mprotect(unsigned long addr, unsigned long len, int r, int w, + int x, struct host_vm_op *ops, int index, + int last_filled, int data, + void (*do_ops)(int, struct host_vm_op *, int)); +#endif + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * Emacs will notice this stuff at the end of the file and automatically + * adjust the settings for this buffer only. This must remain at the end + * of the file. + * --------------------------------------------------------------------------- + * Local variables: + * c-file-style: "linux" + * End: + */ |