1 /****************************************************************************
2 ****************************************************************************
3 ***
4 *** This header was automatically generated from a Linux kernel header
5 *** of the same name, to make information necessary for userspace to
6 *** call into the kernel available to libc. It contains only constants,
7 *** structures, and macros generated from the original header, and thus,
8 *** contains no copyrightable information.
9 ***
10 *** To edit the content of this header, modify the corresponding
11 *** source file (e.g. under external/kernel-headers/original/) then
12 *** run bionic/libc/kernel/tools/update_all.py
13 ***
14 *** Any manual change here will be lost the next time this script will
15 *** be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19 #ifndef __ASM_SYSTEM_H
20 #define __ASM_SYSTEM_H
21 #include <linux/kernel.h>
22 #include <asm/segment.h>
23 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
24 #include <asm/cpufeature.h>
25 #include <asm/cmpxchg.h>
26 #define nop() __asm__ __volatile__ ("nop")
27 #define mb() alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2)
28 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
29 #define rmb() alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2)
30 #define wmb() alternative("lock; addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM)
31 #define read_barrier_depends() do { } while(0)
32 #define smp_mb() barrier()
33 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
34 #define smp_rmb() barrier()
35 #define smp_wmb() barrier()
36 #define smp_read_barrier_depends() do { } while(0)
37 #define set_mb(var, value) do { var = value; barrier(); } while (0)
38 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
39 #include <linux/irqflags.h>
40 #define HAVE_DISABLE_HLT
41 #endif