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authorBaruch Siach <baruch@tkos.co.il>2013-07-15 00:03:38 -0400
committerChris Zankel <chris@zankel.net>2013-09-06 12:48:51 -0400
commitfedc21dce814b500e2a9b3cc51f5f802d39e22e5 (patch)
treec74999661656c2d74808cd49b800b7d5e5fc9bfe
parent123f15e669d5a5a2e2f260ba4a5fc2efd93df20e (diff)
xtensa: fix !CONFIG_XTENSA_CALIBRATE_CCOUNT build failure
Commits 925f5532 (xtensa: ccount based clockevent implementation) and e3f43291 (xtensa: ccount based sched_clock) introduced users of ccount_freq. This variable doesn't exist when CONFIG_XTENSA_CALIBRATE_CCOUNT is disabled. Add ccount_freq definition in this case. Reported-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
-rw-r--r--arch/xtensa/include/asm/timex.h5
-rw-r--r--arch/xtensa/kernel/time.c4
2 files changed, 2 insertions, 7 deletions
diff --git a/arch/xtensa/include/asm/timex.h b/arch/xtensa/include/asm/timex.h
index 69f901713fb6..86aca77339f2 100644
--- a/arch/xtensa/include/asm/timex.h
+++ b/arch/xtensa/include/asm/timex.h
@@ -35,13 +35,8 @@
35# error "Bad timer number for Linux configurations!" 35# error "Bad timer number for Linux configurations!"
36#endif 36#endif
37 37
38#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
39extern unsigned long ccount_freq; 38extern unsigned long ccount_freq;
40#define CCOUNT_PER_JIFFY (ccount_freq / HZ) 39#define CCOUNT_PER_JIFFY (ccount_freq / HZ)
41#else
42#define CCOUNT_PER_JIFFY (CONFIG_XTENSA_CPU_CLOCK*(1000000UL/HZ))
43#endif
44
45 40
46typedef unsigned long long cycles_t; 41typedef unsigned long long cycles_t;
47 42
diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c
index 24bb0c1776ba..a65cb3808e1c 100644
--- a/arch/xtensa/kernel/time.c
+++ b/arch/xtensa/kernel/time.c
@@ -29,9 +29,7 @@
29#include <asm/timex.h> 29#include <asm/timex.h>
30#include <asm/platform.h> 30#include <asm/platform.h>
31 31
32#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
33unsigned long ccount_freq; /* ccount Hz */ 32unsigned long ccount_freq; /* ccount Hz */
34#endif
35 33
36static cycle_t ccount_read(struct clocksource *cs) 34static cycle_t ccount_read(struct clocksource *cs)
37{ 35{
@@ -129,6 +127,8 @@ void __init time_init(void)
129 platform_calibrate_ccount(); 127 platform_calibrate_ccount();
130 printk("%d.%02d MHz\n", (int)ccount_freq/1000000, 128 printk("%d.%02d MHz\n", (int)ccount_freq/1000000,
131 (int)(ccount_freq/10000)%100); 129 (int)(ccount_freq/10000)%100);
130#else
131 ccount_freq = CONFIG_XTENSA_CPU_CLOCK*1000000UL;
132#endif 132#endif
133 clocksource_register_hz(&ccount_clocksource, CCOUNT_PER_JIFFY * HZ); 133 clocksource_register_hz(&ccount_clocksource, CCOUNT_PER_JIFFY * HZ);
134 134