Re: [PATCH] sort out CLOCK_TICK_RATE usage, 2nd try [1/3]

From: Thorsten Kranzkowski
Date: Tue Apr 13 2004 - 17:10:06 EST

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1/3: introduce asm-*/8253pit.h, #defining PIT_TICK_RATE constant.
It seems this is not always the same value.

diff -urN linux-2.6.5/arch/alpha/kernel/time.c linux-2.6.5-1a/arch/alpha/kernel/time.c
--- linux-2.6.5/arch/alpha/kernel/time.c Sun Apr 11 14:24:42 2004
+++ linux-2.6.5-1a/arch/alpha/kernel/time.c Tue Apr 13 17:18:19 2004
@@ -45,6 +45,7 @@
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/hwrpb.h>
+#include <asm/8253pit.h>

#include <linux/mc146818rtc.h>
#include <linux/time.h>
@@ -254,12 +255,11 @@
* arch/i386/time.c.
*/

-#define PIC_TICK_RATE 1193180UL
#define CALIBRATE_LATCH 0xffff
#define TIMEOUT_COUNT 0x100000

static unsigned long __init
-calibrate_cc_with_pic(void)
+calibrate_cc_with_pit(void)
{
int cc, count = 0;

@@ -287,7 +287,7 @@
if (count <= 1 || count == TIMEOUT_COUNT)
return 0;

- return ((long)cc * PIC_TICK_RATE) / (CALIBRATE_LATCH + 1);
+ return ((long)cc * PIT_TICK_RATE) / (CALIBRATE_LATCH + 1);
}

/* The Linux interpretation of the CMOS clock register contents:
@@ -313,7 +313,7 @@

/* Calibrate CPU clock -- attempt #1. */
if (!est_cycle_freq)
- est_cycle_freq = validate_cc_value(calibrate_cc_with_pic());
+ est_cycle_freq = validate_cc_value(calibrate_cc_with_pit());

cc1 = rpcc_after_update_in_progress();

diff -urN linux-2.6.5/include/asm-alpha/8253pit.h linux-2.6.5-1a/include/asm-alpha/8253pit.h
--- linux-2.6.5/include/asm-alpha/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-alpha/8253pit.h Tue Apr 13 17:14:40 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193180UL
+
+#endif
diff -urN linux-2.6.5/include/asm-arm/8253pit.h linux-2.6.5-1a/include/asm-arm/8253pit.h
--- linux-2.6.5/include/asm-arm/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-arm/8253pit.h Tue Apr 13 17:19:31 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193182UL
+
+#endif
diff -urN linux-2.6.5/include/asm-arm26/8253pit.h linux-2.6.5-1a/include/asm-arm26/8253pit.h
--- linux-2.6.5/include/asm-arm26/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-arm26/8253pit.h Tue Apr 13 17:20:08 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193182UL
+
+#endif
diff -urN linux-2.6.5/include/asm-cris/8253pit.h linux-2.6.5-1a/include/asm-cris/8253pit.h
--- linux-2.6.5/include/asm-cris/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-cris/8253pit.h Tue Apr 13 17:20:25 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193182UL
+
+#endif
diff -urN linux-2.6.5/include/asm-h8300/8253pit.h linux-2.6.5-1a/include/asm-h8300/8253pit.h
--- linux-2.6.5/include/asm-h8300/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-h8300/8253pit.h Tue Apr 13 17:20:42 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193182UL
+
+#endif
diff -urN linux-2.6.5/include/asm-i386/8253pit.h linux-2.6.5-1a/include/asm-i386/8253pit.h
--- linux-2.6.5/include/asm-i386/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-i386/8253pit.h Tue Apr 13 17:21:49 2004
@@ -0,0 +1,12 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#include <asm/timex.h>
+
+#define PIT_TICK_RATE CLOCK_TICK_RATE
+
+#endif
diff -urN linux-2.6.5/include/asm-ia64/8253pit.h linux-2.6.5-1a/include/asm-ia64/8253pit.h
--- linux-2.6.5/include/asm-ia64/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-ia64/8253pit.h Tue Apr 13 17:22:10 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193182UL
+
+#endif
diff -urN linux-2.6.5/include/asm-m68k/8253pit.h linux-2.6.5-1a/include/asm-m68k/8253pit.h
--- linux-2.6.5/include/asm-m68k/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-m68k/8253pit.h Tue Apr 13 17:23:24 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193180UL
+
+#endif
diff -urN linux-2.6.5/include/asm-m68k/timex.h linux-2.6.5-1a/include/asm-m68k/timex.h
--- linux-2.6.5/include/asm-m68k/timex.h Thu Dec 18 02:58:07 2003
+++ linux-2.6.5-1a/include/asm-m68k/timex.h Tue Apr 13 17:24:50 2004
@@ -6,7 +6,9 @@
#ifndef _ASMm68k_TIMEX_H
#define _ASMm68k_TIMEX_H

-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+#include <asm/8253pit.h>
+
+#define CLOCK_TICK_RATE PIT_TICK_RATE /* Underlying HZ */
#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
diff -urN linux-2.6.5/include/asm-m68knommu/8253pit.h linux-2.6.5-1a/include/asm-m68knommu/8253pit.h
--- linux-2.6.5/include/asm-m68knommu/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-m68knommu/8253pit.h Tue Apr 13 21:23:13 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193180UL
+
+#endif
diff -urN linux-2.6.5/include/asm-mips/8253pit.h linux-2.6.5-1a/include/asm-mips/8253pit.h
--- linux-2.6.5/include/asm-mips/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-mips/8253pit.h Tue Apr 13 17:25:12 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193182UL
+
+#endif
diff -urN linux-2.6.5/include/asm-parisc/8253pit.h linux-2.6.5-1a/include/asm-parisc/8253pit.h
--- linux-2.6.5/include/asm-parisc/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-parisc/8253pit.h Tue Apr 13 17:25:29 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193180UL
+
+#endif
diff -urN linux-2.6.5/include/asm-parisc/timex.h linux-2.6.5-1a/include/asm-parisc/timex.h
--- linux-2.6.5/include/asm-parisc/timex.h Thu Dec 18 02:58:49 2003
+++ linux-2.6.5-1a/include/asm-parisc/timex.h Tue Apr 13 17:26:16 2004
@@ -6,9 +6,10 @@
#ifndef _ASMPARISC_TIMEX_H
#define _ASMPARISC_TIMEX_H

+#include <asm8253pit.h>
#include <asm/system.h>

-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+#define CLOCK_TICK_RATE PIT_TICK_RATE /* Underlying HZ */

typedef unsigned long cycles_t;

diff -urN linux-2.6.5/include/asm-ppc/8253pit.h linux-2.6.5-1a/include/asm-ppc/8253pit.h
--- linux-2.6.5/include/asm-ppc/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-ppc/8253pit.h Tue Apr 13 17:26:35 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193180UL
+
+#endif
diff -urN linux-2.6.5/include/asm-ppc/timex.h linux-2.6.5-1a/include/asm-ppc/timex.h
--- linux-2.6.5/include/asm-ppc/timex.h Thu Dec 18 02:58:49 2003
+++ linux-2.6.5-1a/include/asm-ppc/timex.h Tue Apr 13 17:27:36 2004
@@ -8,9 +8,10 @@
#define _ASMppc_TIMEX_H

#include <linux/config.h>
+#include <asm/8253pit.h>
#include <asm/cputable.h>

-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+#define CLOCK_TICK_RATE PIT_TICK_RATE /* Underlying HZ */
#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
diff -urN linux-2.6.5/include/asm-ppc64/8253pit.h linux-2.6.5-1a/include/asm-ppc64/8253pit.h
--- linux-2.6.5/include/asm-ppc64/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-ppc64/8253pit.h Tue Apr 13 17:27:52 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193180UL
+
+#endif
diff -urN linux-2.6.5/include/asm-ppc64/timex.h linux-2.6.5-1a/include/asm-ppc64/timex.h
--- linux-2.6.5/include/asm-ppc64/timex.h Thu Dec 18 02:59:59 2003
+++ linux-2.6.5-1a/include/asm-ppc64/timex.h Tue Apr 13 17:28:32 2004
@@ -11,7 +11,9 @@
#ifndef _ASMPPC64_TIMEX_H
#define _ASMPPC64_TIMEX_H

-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+#include <asm/8253pit.h>
+
+#define CLOCK_TICK_RATE PIT_TICK_RATE /* Underlying HZ */
#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
diff -urN linux-2.6.5/include/asm-s390/8253pit.h linux-2.6.5-1a/include/asm-s390/8253pit.h
--- linux-2.6.5/include/asm-s390/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-s390/8253pit.h Tue Apr 13 17:28:50 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193180UL
+
+#endif
diff -urN linux-2.6.5/include/asm-s390/timex.h linux-2.6.5-1a/include/asm-s390/timex.h
--- linux-2.6.5/include/asm-s390/timex.h Sun Apr 11 14:23:27 2004
+++ linux-2.6.5-1a/include/asm-s390/timex.h Tue Apr 13 17:29:23 2004
@@ -11,7 +11,9 @@
#ifndef _ASM_S390_TIMEX_H
#define _ASM_S390_TIMEX_H

-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+#include <asm/8253pit.h>
+
+#define CLOCK_TICK_RATE PIT_TICK_RATE /* Underlying HZ */
#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
diff -urN linux-2.6.5/include/asm-sh/8253pit.h linux-2.6.5-1a/include/asm-sh/8253pit.h
--- linux-2.6.5/include/asm-sh/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-sh/8253pit.h Tue Apr 13 17:30:06 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193182UL
+
+#endif
diff -urN linux-2.6.5/include/asm-sparc/8253pit.h linux-2.6.5-1a/include/asm-sparc/8253pit.h
--- linux-2.6.5/include/asm-sparc/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-sparc/8253pit.h Tue Apr 13 17:30:31 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193180UL
+
+#endif
diff -urN linux-2.6.5/include/asm-sparc/timex.h linux-2.6.5-1a/include/asm-sparc/timex.h
--- linux-2.6.5/include/asm-sparc/timex.h Thu Dec 18 02:59:05 2003
+++ linux-2.6.5-1a/include/asm-sparc/timex.h Tue Apr 13 17:31:19 2004
@@ -6,7 +6,9 @@
#ifndef _ASMsparc_TIMEX_H
#define _ASMsparc_TIMEX_H

-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+#include <asm/8253pit.h>
+
+#define CLOCK_TICK_RATE PIT_TICK_RATE /* Underlying HZ */
#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
diff -urN linux-2.6.5/include/asm-sparc64/8253pit.h linux-2.6.5-1a/include/asm-sparc64/8253pit.h
--- linux-2.6.5/include/asm-sparc64/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-sparc64/8253pit.h Tue Apr 13 17:31:29 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193180UL
+
+#endif
diff -urN linux-2.6.5/include/asm-sparc64/timex.h linux-2.6.5-1a/include/asm-sparc64/timex.h
--- linux-2.6.5/include/asm-sparc64/timex.h Thu Dec 18 02:58:49 2003
+++ linux-2.6.5-1a/include/asm-sparc64/timex.h Tue Apr 13 17:32:16 2004
@@ -6,9 +6,10 @@
#ifndef _ASMsparc64_TIMEX_H
#define _ASMsparc64_TIMEX_H

+#include <asm/8253pit.h>
#include <asm/timer.h>

-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+#define CLOCK_TICK_RATE PIT_TICK_RATE /* Underlying HZ */
#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
diff -urN linux-2.6.5/include/asm-um/8253pit.h linux-2.6.5-1a/include/asm-um/8253pit.h
--- linux-2.6.5/include/asm-um/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-um/8253pit.h Tue Apr 13 17:32:34 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193182UL
+
+#endif
diff -urN linux-2.6.5/include/asm-x86_64/8253pit.h linux-2.6.5-1a/include/asm-x86_64/8253pit.h
--- linux-2.6.5/include/asm-x86_64/8253pit.h Thu Jan 1 00:00:00 1970
+++ linux-2.6.5-1a/include/asm-x86_64/8253pit.h Tue Apr 13 17:32:49 2004
@@ -0,0 +1,10 @@
+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 1193182UL
+
+#endif
diff -urN linux-2.6.5/include/asm-x86_64/timex.h linux-2.6.5-1a/include/asm-x86_64/timex.h
--- linux-2.6.5/include/asm-x86_64/timex.h Sun Apr 11 14:23:27 2004
+++ linux-2.6.5-1a/include/asm-x86_64/timex.h Tue Apr 13 17:33:26 2004
@@ -7,11 +7,12 @@
#define _ASMx8664_TIMEX_H

#include <linux/config.h>
+#include <asm/8253pit.h>
#include <asm/msr.h>
#include <asm/vsyscall.h>
#include <asm/hpet.h>

-#define CLOCK_TICK_RATE 1193182 /* Underlying HZ */
+#define CLOCK_TICK_RATE PIT_TICK_RATE /* Underlying HZ */
#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
#define FINETUNE ((((((int)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
--
| Thorsten Kranzkowski Internet: dl8bcu@xxxxxxxxx |
| Mobile: ++49 170 1876134 Snail: Kiebitzstr. 14, 49324 Melle, Germany |
| Ampr: dl8bcu@db0lj.#rpl.deu.eu, dl8bcu@xxxxxxxxxxxxxxxxxxxxxx [44.130.8.19] |
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