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treewide: Remove CLOCK_TICK_RATE

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This has been scheduled for removal more than a decade ago and the comments
related to it have been dutifully ignored. The last dependencies are gone.

Remove it along with various now empty asm/timex.h files.

Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Link: https://patch.msgid.link/20260410120317.910770161@kernel.org
This commit is contained in:
Thomas Gleixner
2026-04-10 14:18:52 +02:00
parent 6e1c488583
commit 3ed403bbc9
17 changed files with 2 additions and 121 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/alpha/include/asm/timex.h
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@@ -7,10 +7,6 @@
#ifndef _ASMALPHA_TIMEX_H
#define _ASMALPHA_TIMEX_H
/* With only one or two oddballs, we use the RTC as the ticker, selecting
the 32.768kHz reference clock, which nicely divides down to our HZ. */
#define CLOCK_TICK_RATE 32768
/*
* Standard way to access the cycle counter.
* Currently only used on SMP for scheduling.

15
arch/arc/include/asm/timex.h
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@@ -1,15 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
*/
#ifndef _ASM_ARC_TIMEX_H
#define _ASM_ARC_TIMEX_H
#define CLOCK_TICK_RATE 80000000 /* slated to be removed */
#include <asm-generic/timex.h>
/* XXX: get_cycles() to be implemented with RTSC insn */
#endif /* _ASM_ARC_TIMEX_H */

2
arch/arm/mach-omap1/Kconfig
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@@ -74,7 +74,7 @@ config OMAP_32K_TIMER
currently only available for OMAP16XX, 24XX, 34XX, OMAP4/5 and DRA7XX.
On OMAP2PLUS this value is only used for CONFIG_HZ and
CLOCK_TICK_RATE compile time calculation.
timer frequency compile time calculation.
The actual timer selection is done in the board file
through the (DT_)MACHINE_START structure.

3
arch/hexagon/include/asm/timex.h
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@@ -9,9 +9,6 @@
#include <asm-generic/timex.h>
#include <asm/hexagon_vm.h>
/* Using TCX0 as our clock. CLOCK_TICK_RATE scheduled to be removed. */
#define CLOCK_TICK_RATE 19200
#define ARCH_HAS_READ_CURRENT_TIMER
static inline int read_current_timer(unsigned long *timer_val)

15
arch/m68k/include/asm/timex.h
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@@ -7,21 +7,6 @@
#ifndef _ASMm68K_TIMEX_H
#define _ASMm68K_TIMEX_H
#ifdef CONFIG_COLDFIRE
/*
* CLOCK_TICK_RATE should give the underlying frequency of the tick timer
* to make ntp work best. For Coldfires, that's the main clock.
*/
#include <asm/coldfire.h>
#define CLOCK_TICK_RATE MCF_CLK
#else
/*
* This default CLOCK_TICK_RATE is probably wrong for many 68k boards
* Users of those boards will need to check and modify accordingly
*/
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
#endif
typedef unsigned long cycles_t;
static inline cycles_t get_cycles(void)

13
arch/microblaze/include/asm/timex.h
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@@ -1,13 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2006 Atmark Techno, Inc.
*/
#ifndef _ASM_MICROBLAZE_TIMEX_H
#define _ASM_MICROBLAZE_TIMEX_H
#include <asm-generic/timex.h>
#define CLOCK_TICK_RATE 1000 /* Timer input freq. */
#endif /* _ASM_TIMEX_H */

8
arch/mips/include/asm/timex.h
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@@ -18,14 +18,6 @@
#include <asm/mipsregs.h>
#include <asm/cpu-type.h>
/*
* This is the clock rate of the i8253 PIT. A MIPS system may not have
* a PIT by the symbol is used all over the kernel including some APIs.
* So keeping it defined to the number for the PIT is the only sane thing
* for now.
*/
#define CLOCK_TICK_RATE 1193182
/*
* Standard way to access the cycle counter.
* Currently only used on SMP for scheduling.

3
arch/openrisc/include/asm/timex.h
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@@ -25,9 +25,6 @@ static inline cycles_t get_cycles(void)
}
#define get_cycles get_cycles
/* This isn't really used any more */
#define CLOCK_TICK_RATE 1000
#define ARCH_HAS_READ_CURRENT_TIMER
#endif

2
arch/parisc/include/asm/timex.h
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@@ -9,8 +9,6 @@
#include <asm/special_insns.h>
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
typedef unsigned long cycles_t;
static inline cycles_t get_cycles(void)

2
arch/powerpc/include/asm/timex.h
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@@ -11,8 +11,6 @@
#include <asm/cputable.h>
#include <asm/vdso/timebase.h>
#define CLOCK_TICK_RATE 1024000 /* Underlying HZ */
typedef unsigned long cycles_t;
static inline cycles_t get_cycles(void)

2
arch/s390/include/asm/timex.h
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@@ -159,8 +159,6 @@ static inline void local_tick_enable(unsigned long comp)
set_clock_comparator(get_lowcore()->clock_comparator);
}
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
typedef unsigned long cycles_t;
static __always_inline unsigned long get_tod_clock(void)

24
arch/sh/include/asm/timex.h
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@@ -1,24 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* linux/include/asm-sh/timex.h
*
* sh architecture timex specifications
*/
#ifndef __ASM_SH_TIMEX_H
#define __ASM_SH_TIMEX_H
/*
* Only parts using the legacy CPG code for their clock framework
* implementation need to define their own Pclk value. If provided, this
* can be used for accurately setting CLOCK_TICK_RATE, otherwise we
* simply fall back on the i8253 PIT value.
*/
#ifdef CONFIG_SH_PCLK_FREQ
#define CLOCK_TICK_RATE (CONFIG_SH_PCLK_FREQ / 4) /* Underlying HZ */
#else
#define CLOCK_TICK_RATE 1193180
#endif
#include <asm-generic/timex.h>
#endif /* __ASM_SH_TIMEX_H */

2
arch/sparc/include/asm/timex.h
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@@ -4,6 +4,6 @@
#if defined(__sparc__) && defined(__arch64__)
#include <asm/timex_64.h>
#else
#include <asm/timex_32.h>
#include <asm-generic/timex.h>
#endif
#endif

14
arch/sparc/include/asm/timex_32.h
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@@ -1,14 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* linux/include/asm/timex.h
*
* sparc architecture timex specifications
*/
#ifndef _ASMsparc_TIMEX_H
#define _ASMsparc_TIMEX_H
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
#include <asm-generic/timex.h>
#endif

2
arch/sparc/include/asm/timex_64.h
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@@ -9,8 +9,6 @@
#include <asm/timer.h>
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
/* Getting on the cycle counter on sparc64. */
typedef unsigned long cycles_t;
#define get_cycles() tick_ops->get_tick()

9
arch/um/include/asm/timex.h
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@@ -1,9 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __UM_TIMEX_H
#define __UM_TIMEX_H
#define CLOCK_TICK_RATE (HZ)
#include <asm-generic/timex.h>
#endif

3
arch/x86/include/asm/timex.h
View File

@@ -13,9 +13,6 @@ static inline unsigned long random_get_entropy(void)
}
#define random_get_entropy random_get_entropy
/* Assume we use the PIT time source for the clock tick */
#define CLOCK_TICK_RATE PIT_TICK_RATE
#define ARCH_HAS_READ_CURRENT_TIMER
#endif /* _ASM_X86_TIMEX_H */