diff options
author | Richard Weinberger <richard@nod.at> | 2011-08-18 15:55:11 -0400 |
---|---|---|
committer | Richard Weinberger <richard@nod.at> | 2011-11-02 09:15:37 -0400 |
commit | d0af6cbfa2eb675643cc651114364752e972900b (patch) | |
tree | a8ecae20a0c8d709cc655c3c62ccc9b4f7a58e57 /arch/x86 | |
parent | 73395a0002aa9573ffc8d989587b79663847f705 (diff) |
um: merge delay_{32,64}.c
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/x86')
-rw-r--r-- | arch/x86/um/Makefile | 2 | ||||
-rw-r--r-- | arch/x86/um/delay.c (renamed from arch/x86/um/delay_32.c) | 0 | ||||
-rw-r--r-- | arch/x86/um/delay_64.c | 60 |
3 files changed, 1 insertions, 61 deletions
diff --git a/arch/x86/um/Makefile b/arch/x86/um/Makefile index ffe1008a3f43..8fb58400e415 100644 --- a/arch/x86/um/Makefile +++ b/arch/x86/um/Makefile | |||
@@ -8,7 +8,7 @@ else | |||
8 | BITS := 64 | 8 | BITS := 64 |
9 | endif | 9 | endif |
10 | 10 | ||
11 | obj-y = bug.o bugs_$(BITS).o delay_$(BITS).o fault.o ksyms.o ldt.o \ | 11 | obj-y = bug.o bugs_$(BITS).o delay.o fault.o ksyms.o ldt.o \ |
12 | ptrace_$(BITS).o ptrace_user.o setjmp_$(BITS).o signal.o \ | 12 | ptrace_$(BITS).o ptrace_user.o setjmp_$(BITS).o signal.o \ |
13 | stub_$(BITS).o stub_segv.o syscalls_$(BITS).o \ | 13 | stub_$(BITS).o stub_segv.o syscalls_$(BITS).o \ |
14 | sys_call_table_$(BITS).o sysrq_$(BITS).o tls_$(BITS).o \ | 14 | sys_call_table_$(BITS).o sysrq_$(BITS).o tls_$(BITS).o \ |
diff --git a/arch/x86/um/delay_32.c b/arch/x86/um/delay.c index f3fe1a688f7e..f3fe1a688f7e 100644 --- a/arch/x86/um/delay_32.c +++ b/arch/x86/um/delay.c | |||
diff --git a/arch/x86/um/delay_64.c b/arch/x86/um/delay_64.c deleted file mode 100644 index f3fe1a688f7e..000000000000 --- a/arch/x86/um/delay_64.c +++ /dev/null | |||
@@ -1,60 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2011 Richard Weinberger <richrd@nod.at> | ||
3 | * Mostly copied from arch/x86/lib/delay.c | ||
4 | * | ||
5 | * This program is free software; you can redistribute it and/or modify | ||
6 | * it under the terms of the GNU General Public License version 2 as | ||
7 | * published by the Free Software Foundation. | ||
8 | */ | ||
9 | |||
10 | #include <linux/module.h> | ||
11 | #include <linux/kernel.h> | ||
12 | #include <linux/delay.h> | ||
13 | #include <asm/param.h> | ||
14 | |||
15 | void __delay(unsigned long loops) | ||
16 | { | ||
17 | asm volatile( | ||
18 | "test %0,%0\n" | ||
19 | "jz 3f\n" | ||
20 | "jmp 1f\n" | ||
21 | |||
22 | ".align 16\n" | ||
23 | "1: jmp 2f\n" | ||
24 | |||
25 | ".align 16\n" | ||
26 | "2: dec %0\n" | ||
27 | " jnz 2b\n" | ||
28 | "3: dec %0\n" | ||
29 | |||
30 | : /* we don't need output */ | ||
31 | : "a" (loops) | ||
32 | ); | ||
33 | } | ||
34 | EXPORT_SYMBOL(__delay); | ||
35 | |||
36 | inline void __const_udelay(unsigned long xloops) | ||
37 | { | ||
38 | int d0; | ||
39 | |||
40 | xloops *= 4; | ||
41 | asm("mull %%edx" | ||
42 | : "=d" (xloops), "=&a" (d0) | ||
43 | : "1" (xloops), "0" | ||
44 | (loops_per_jiffy * (HZ/4))); | ||
45 | |||
46 | __delay(++xloops); | ||
47 | } | ||
48 | EXPORT_SYMBOL(__const_udelay); | ||
49 | |||
50 | void __udelay(unsigned long usecs) | ||
51 | { | ||
52 | __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */ | ||
53 | } | ||
54 | EXPORT_SYMBOL(__udelay); | ||
55 | |||
56 | void __ndelay(unsigned long nsecs) | ||
57 | { | ||
58 | __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */ | ||
59 | } | ||
60 | EXPORT_SYMBOL(__ndelay); | ||