aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-xtensa/timex.h
diff options
context:
space:
mode:
authorChris Zankel <chris@zankel.net>2008-11-06 09:40:46 -0500
committerChris Zankel <chris@zankel.net>2008-11-06 13:25:09 -0500
commit367b8112fe2ea5c39a7bb4d263dcdd9b612fae18 (patch)
tree9f3349189718dd2c5678faf0ab38f389786b6925 /include/asm-xtensa/timex.h
parent206ead28377fee86b129637edada8c77816cc0d6 (diff)
xtensa: move headers files to arch/xtensa/include
Move all header files for xtensa to arch/xtensa/include and platform and variant header files to the appropriate arch/xtensa/platforms/ and arch/xtensa/variants/ directories. Moving the files gets also rid of all uses of symlinks in the Makefile. This has been completed already for the majority of the architectures and xtensa is one out of six missing. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'include/asm-xtensa/timex.h')
-rw-r--r--include/asm-xtensa/timex.h96
1 files changed, 0 insertions, 96 deletions
diff --git a/include/asm-xtensa/timex.h b/include/asm-xtensa/timex.h
deleted file mode 100644
index b83a8181d448..000000000000
--- a/include/asm-xtensa/timex.h
+++ /dev/null
@@ -1,96 +0,0 @@
1/*
2 * include/asm-xtensa/timex.h
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 2001 - 2005 Tensilica Inc.
9 */
10
11#ifndef _XTENSA_TIMEX_H
12#define _XTENSA_TIMEX_H
13
14#ifdef __KERNEL__
15
16#include <asm/processor.h>
17#include <linux/stringify.h>
18
19#define _INTLEVEL(x) XCHAL_INT ## x ## _LEVEL
20#define INTLEVEL(x) _INTLEVEL(x)
21
22#if INTLEVEL(XCHAL_TIMER0_INTERRUPT) == 1
23# define LINUX_TIMER 0
24# define LINUX_TIMER_INT XCHAL_TIMER0_INTERRUPT
25#elif INTLEVEL(XCHAL_TIMER1_INTERRUPT) == 1
26# define LINUX_TIMER 1
27# define LINUX_TIMER_INT XCHAL_TIMER1_INTERRUPT
28#elif INTLEVEL(XCHAL_TIMER2_INTERRUPT) == 1
29# define LINUX_TIMER 2
30# define LINUX_TIMER_INT XCHAL_TIMER2_INTERRUPT
31#else
32# error "Bad timer number for Linux configurations!"
33#endif
34
35#define LINUX_TIMER_MASK (1L << LINUX_TIMER_INT)
36
37#define CLOCK_TICK_RATE 1193180 /* (everyone is using this value) */
38#define CLOCK_TICK_FACTOR 20 /* Factor of both 10^6 and CLOCK_TICK_RATE */
39
40#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
41extern unsigned long ccount_per_jiffy;
42extern unsigned long ccount_nsec;
43#define CCOUNT_PER_JIFFY ccount_per_jiffy
44#define NSEC_PER_CCOUNT ccount_nsec
45#else
46#define CCOUNT_PER_JIFFY (CONFIG_XTENSA_CPU_CLOCK*(1000000UL/HZ))
47#define NSEC_PER_CCOUNT (1000UL / CONFIG_XTENSA_CPU_CLOCK)
48#endif
49
50
51typedef unsigned long long cycles_t;
52
53/*
54 * Only used for SMP.
55 */
56
57extern cycles_t cacheflush_time;
58
59#define get_cycles() (0)
60
61
62/*
63 * Register access.
64 */
65
66#define WSR_CCOUNT(r) asm volatile ("wsr %0,"__stringify(CCOUNT) :: "a" (r))
67#define RSR_CCOUNT(r) asm volatile ("rsr %0,"__stringify(CCOUNT) : "=a" (r))
68#define WSR_CCOMPARE(x,r) asm volatile ("wsr %0,"__stringify(CCOMPARE)"+"__stringify(x) :: "a"(r))
69#define RSR_CCOMPARE(x,r) asm volatile ("rsr %0,"__stringify(CCOMPARE)"+"__stringify(x) : "=a"(r))
70
71static inline unsigned long get_ccount (void)
72{
73 unsigned long ccount;
74 RSR_CCOUNT(ccount);
75 return ccount;
76}
77
78static inline void set_ccount (unsigned long ccount)
79{
80 WSR_CCOUNT(ccount);
81}
82
83static inline unsigned long get_linux_timer (void)
84{
85 unsigned ccompare;
86 RSR_CCOMPARE(LINUX_TIMER, ccompare);
87 return ccompare;
88}
89
90static inline void set_linux_timer (unsigned long ccompare)
91{
92 WSR_CCOMPARE(LINUX_TIMER, ccompare);
93}
94
95#endif /* __KERNEL__ */
96#endif /* _XTENSA_TIMEX_H */