aboutsummaryrefslogtreecommitdiffstats
path: root/arch/m68k
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/Kconfig6
-rw-r--r--arch/m68k/include/asm/hardirq_mm.h12
-rw-r--r--arch/m68k/include/asm/mman.h18
-rw-r--r--arch/m68k/include/asm/unistd.h2
-rw-r--r--arch/m68k/kernel/entry.S2
-rw-r--r--arch/m68k/kernel/time.c70
-rw-r--r--arch/m68k/mm/init.c2
7 files changed, 14 insertions, 98 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index fb87c08c6b57..29dd8489ffec 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -58,6 +58,12 @@ config HZ
58 int 58 int
59 default 100 59 default 100
60 60
61config GENERIC_TIME
62 def_bool y
63
64config ARCH_USES_GETTIMEOFFSET
65 def_bool y
66
61mainmenu "Linux/68k Kernel Configuration" 67mainmenu "Linux/68k Kernel Configuration"
62 68
63source "init/Kconfig" 69source "init/Kconfig"
diff --git a/arch/m68k/include/asm/hardirq_mm.h b/arch/m68k/include/asm/hardirq_mm.h
index 394ee946015c..554f65b6cd3b 100644
--- a/arch/m68k/include/asm/hardirq_mm.h
+++ b/arch/m68k/include/asm/hardirq_mm.h
@@ -1,16 +1,8 @@
1#ifndef __M68K_HARDIRQ_H 1#ifndef __M68K_HARDIRQ_H
2#define __M68K_HARDIRQ_H 2#define __M68K_HARDIRQ_H
3 3
4#include <linux/threads.h>
5#include <linux/cache.h>
6
7/* entry.S is sensitive to the offsets of these fields */
8typedef struct {
9 unsigned int __softirq_pending;
10} ____cacheline_aligned irq_cpustat_t;
11
12#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
13
14#define HARDIRQ_BITS 8 4#define HARDIRQ_BITS 8
15 5
6#include <asm-generic/hardirq.h>
7
16#endif 8#endif
diff --git a/arch/m68k/include/asm/mman.h b/arch/m68k/include/asm/mman.h
index 9f5c4c4b3c7b..8eebf89f5ab1 100644
--- a/arch/m68k/include/asm/mman.h
+++ b/arch/m68k/include/asm/mman.h
@@ -1,17 +1 @@
1#ifndef __M68K_MMAN_H__ #include <asm-generic/mman.h>
2#define __M68K_MMAN_H__
3
4#include <asm-generic/mman-common.h>
5
6#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
7#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
8#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
9#define MAP_LOCKED 0x2000 /* pages are locked */
10#define MAP_NORESERVE 0x4000 /* don't check for reservations */
11#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
12#define MAP_NONBLOCK 0x10000 /* do not block on IO */
13
14#define MCL_CURRENT 1 /* lock all current mappings */
15#define MCL_FUTURE 2 /* lock all future mappings */
16
17#endif /* __M68K_MMAN_H__ */
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index 946d8691f2b0..48b87f5ced50 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -335,7 +335,7 @@
335#define __NR_preadv 329 335#define __NR_preadv 329
336#define __NR_pwritev 330 336#define __NR_pwritev 330
337#define __NR_rt_tgsigqueueinfo 331 337#define __NR_rt_tgsigqueueinfo 331
338#define __NR_perf_counter_open 332 338#define __NR_perf_event_open 332
339 339
340#ifdef __KERNEL__ 340#ifdef __KERNEL__
341 341
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 922f52e7ed1a..c5b33634c980 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -756,5 +756,5 @@ sys_call_table:
756 .long sys_preadv 756 .long sys_preadv
757 .long sys_pwritev /* 330 */ 757 .long sys_pwritev /* 330 */
758 .long sys_rt_tgsigqueueinfo 758 .long sys_rt_tgsigqueueinfo
759 .long sys_perf_counter_open 759 .long sys_perf_event_open
760 760
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 54d980795fc4..17dc2a31a7ca 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -91,77 +91,11 @@ void __init time_init(void)
91 mach_sched_init(timer_interrupt); 91 mach_sched_init(timer_interrupt);
92} 92}
93 93
94/* 94u32 arch_gettimeoffset(void)
95 * This version of gettimeofday has near microsecond resolution.
96 */
97void do_gettimeofday(struct timeval *tv)
98{ 95{
99 unsigned long flags; 96 return mach_gettimeoffset() * 1000;
100 unsigned long seq;
101 unsigned long usec, sec;
102 unsigned long max_ntp_tick = tick_usec - tickadj;
103
104 do {
105 seq = read_seqbegin_irqsave(&xtime_lock, flags);
106
107 usec = mach_gettimeoffset();
108
109 /*
110 * If time_adjust is negative then NTP is slowing the clock
111 * so make sure not to go into next possible interval.
112 * Better to lose some accuracy than have time go backwards..
113 */
114 if (unlikely(time_adjust < 0))
115 usec = min(usec, max_ntp_tick);
116
117 sec = xtime.tv_sec;
118 usec += xtime.tv_nsec/1000;
119 } while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
120
121
122 while (usec >= 1000000) {
123 usec -= 1000000;
124 sec++;
125 }
126
127 tv->tv_sec = sec;
128 tv->tv_usec = usec;
129}
130
131EXPORT_SYMBOL(do_gettimeofday);
132
133int do_settimeofday(struct timespec *tv)
134{
135 time_t wtm_sec, sec = tv->tv_sec;
136 long wtm_nsec, nsec = tv->tv_nsec;
137
138 if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
139 return -EINVAL;
140
141 write_seqlock_irq(&xtime_lock);
142 /* This is revolting. We need to set the xtime.tv_nsec
143 * correctly. However, the value in this location is
144 * is value at the last tick.
145 * Discover what correction gettimeofday
146 * would have done, and then undo it!
147 */
148 nsec -= 1000 * mach_gettimeoffset();
149
150 wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
151 wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
152
153 set_normalized_timespec(&xtime, sec, nsec);
154 set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
155
156 ntp_clear();
157 write_sequnlock_irq(&xtime_lock);
158 clock_was_set();
159 return 0;
160} 97}
161 98
162EXPORT_SYMBOL(do_settimeofday);
163
164
165static int __init rtc_init(void) 99static int __init rtc_init(void)
166{ 100{
167 struct platform_device *pdev; 101 struct platform_device *pdev;
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index 0007b2adf3a3..774549accd2d 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -126,7 +126,7 @@ void __init mem_init(void)
126#endif 126#endif
127 127
128 printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n", 128 printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n",
129 (unsigned long)nr_free_pages() << (PAGE_SHIFT-10), 129 nr_free_pages() << (PAGE_SHIFT-10),
130 totalram_pages << (PAGE_SHIFT-10), 130 totalram_pages << (PAGE_SHIFT-10),
131 codepages << (PAGE_SHIFT-10), 131 codepages << (PAGE_SHIFT-10),
132 datapages << (PAGE_SHIFT-10), 132 datapages << (PAGE_SHIFT-10),