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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - include/asm-um/ldt.h
2 * Copyright (C) 2004 Fujitsu Siemens Computers GmbH
3 * Licensed under the GPL
5 * Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
11 #include "asm/semaphore.h"
12 #include "asm/host_ldt.h"
14 struct mmu_context_skas
;
15 extern void ldt_host_info(void);
16 extern long init_new_ldt(struct mmu_context_skas
* to_mm
,
17 struct mmu_context_skas
* from_mm
);
18 extern void free_ldt(struct mmu_context_skas
* mm
);
20 #define LDT_PAGES_MAX \
21 ((LDT_ENTRIES * LDT_ENTRY_SIZE)/PAGE_SIZE)
22 #define LDT_ENTRIES_PER_PAGE \
23 (PAGE_SIZE/LDT_ENTRY_SIZE)
24 #define LDT_DIRECT_ENTRIES \
25 ((LDT_PAGES_MAX*sizeof(void *))/LDT_ENTRY_SIZE)
32 typedef struct uml_ldt
{
34 struct semaphore semaphore
;
36 struct ldt_entry
* pages
[LDT_PAGES_MAX
];
37 struct ldt_entry entries
[LDT_DIRECT_ENTRIES
];