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gerrit-public.fairphone.software / kernel / msm-4.9 / refs/tags/FP3-REL-Q-3.A.0107 / . / arch / um / include / shared / kern_util.h
blob: 35ab97e4bb9b5f79aae8fefacf046e1cca541d24 [file] [log] [blame]
Gennady Sharapovea2ba7d2006-01-08 01:01:31 -0800[diff] [blame]1/*
Jeff Dikeba180fd2007-10-16 01:27:00 -0700[diff] [blame]2 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]3 * Licensed under the GPL
4 */
5
6#ifndef __KERN_UTIL_H__
7#define __KERN_UTIL_H__
8
Al Viro37185b32012-10-08 03:27:32 +0100[diff] [blame]9#include <sysdep/ptrace.h>
10#include <sysdep/faultinfo.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]11
Martin Pärteld3c1cfc2012-08-02 00:49:17 +0200[diff] [blame]12struct siginfo;
13
Jeff Dike0983a882008-02-04 22:31:08 -0800[diff] [blame]14extern int uml_exitcode;
15
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]16extern int ncpus;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]17extern int kmalloc_ok;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]18
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]19#define UML_ROUND_UP(addr) \
Jeff Dikeedea1382008-02-04 22:30:46 -0800[diff] [blame]20 ((((unsigned long) addr) + PAGE_SIZE - 1) & PAGE_MASK)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]21
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]22extern unsigned long alloc_stack(int order, int atomic);
Jeff Dikeedea1382008-02-04 22:30:46 -0800[diff] [blame]23extern void free_stack(unsigned long stack, int order);
24
Ingo Molnarccaee5f2015-07-03 12:44:20 -0700[diff] [blame]25struct pt_regs;
26extern void do_signal(struct pt_regs *regs);
Jeff Dikeedea1382008-02-04 22:30:46 -0800[diff] [blame]27extern void interrupt_end(void);
Martin Pärteld3c1cfc2012-08-02 00:49:17 +0200[diff] [blame]28extern void relay_signal(int sig, struct siginfo *si, struct uml_pt_regs *regs);
Jeff Dikeedea1382008-02-04 22:30:46 -0800[diff] [blame]29
Bodo Stroesserc5784552005-05-05 16:15:31 -0700[diff] [blame]30extern unsigned long segv(struct faultinfo fi, unsigned long ip,
Jeff Dike77bf4402007-10-16 01:26:58 -0700[diff] [blame]31 int is_user, struct uml_pt_regs *regs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]32extern int handle_page_fault(unsigned long address, unsigned long ip,
33 int is_write, int is_user, int *code_out);
Jeff Dikeedea1382008-02-04 22:30:46 -0800[diff] [blame]34
Jeff Dike77bf4402007-10-16 01:26:58 -0700[diff] [blame]35extern unsigned int do_IRQ(int irq, struct uml_pt_regs *regs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]36extern int smp_sigio_handler(void);
Jeff Dikeedea1382008-02-04 22:30:46 -0800[diff] [blame]37extern void initial_thread_cb(void (*proc)(void *), void *arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]38extern int is_syscall(unsigned long addr);
Paolo 'Blaisorblade' Giarrusso972410b2006-03-31 02:30:21 -0800[diff] [blame]39
Martin Pärteld3c1cfc2012-08-02 00:49:17 +0200[diff] [blame]40extern void timer_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs);
Paolo 'Blaisorblade' Giarrussob6316292006-01-18 17:42:58 -0800[diff] [blame]41
Jeff Dike77bf4402007-10-16 01:26:58 -0700[diff] [blame]42extern int start_uml(void);
Jeff Dikeedea1382008-02-04 22:30:46 -0800[diff] [blame]43extern void paging_init(void);
44
45extern void uml_cleanup(void);
46extern void do_uml_exitcalls(void);
47
48/*
49 * Are we disallowed to sleep? Used to choose between GFP_KERNEL and
50 * GFP_ATOMIC.
51 */
52extern int __cant_sleep(void);
Al Viroc2220b22012-01-30 16:30:48 -0500[diff] [blame]53extern int get_current_pid(void);
Jeff Dikeedea1382008-02-04 22:30:46 -0800[diff] [blame]54extern int copy_from_user_proc(void *to, void *from, int size);
55extern int cpu(void);
56extern char *uml_strdup(const char *string);
57
58extern unsigned long to_irq_stack(unsigned long *mask_out);
59extern unsigned long from_irq_stack(int nested);
60
61extern void syscall_trace(struct uml_pt_regs *regs, int entryexit);
62extern int singlestepping(void *t);
63
Martin Pärteld3c1cfc2012-08-02 00:49:17 +0200[diff] [blame]64extern void segv_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs);
65extern void bus_handler(int sig, struct siginfo *si, struct uml_pt_regs *regs);
66extern void winch(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs);
Jeff Dike3e6f2ac2008-02-04 22:30:58 -0800[diff] [blame]67extern void fatal_sigsegv(void) __attribute__ ((noreturn));
Jeff Dikeedea1382008-02-04 22:30:46 -0800[diff] [blame]68
69
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]70#endif