diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-12-15 20:19:25 +0100 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-12-22 23:44:42 +0100 |
commit | 5e06b6492e53ab2a4e467763a9ee9f70b032c301 (patch) | |
tree | 6259d673f427d7194c6825bb1868ccf8b0ee21fe | |
parent | ARM: tegra: timer: Separate clocksource and sched_clock (diff) | |
download | linux-5e06b6492e53ab2a4e467763a9ee9f70b032c301.tar.xz linux-5e06b6492e53ab2a4e467763a9ee9f70b032c301.zip |
ARM: ensure all sched_clock() implementations are notrace marked
ftrace requires sched_clock() to be notrace. Ensure that all
implementations are so marked. Also make sure that they include
linux/sched.h
Also ensure OMAP clocksource read functions are marked notrace as
they're used for sched_clock() too.
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Tested-by: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Eric Miao <eric.y.miao@gmail.com>
Tested-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r-- | arch/arm/mach-ixp4xx/common.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-mmp/time.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/time.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-sa1100/generic.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-tegra/timer.c | 3 | ||||
-rw-r--r-- | arch/arm/mach-u300/timer.c | 1 | ||||
-rw-r--r-- | arch/arm/plat-iop/time.c | 3 | ||||
-rw-r--r-- | arch/arm/plat-nomadik/timer.c | 1 | ||||
-rw-r--r-- | arch/arm/plat-omap/counter_32k.c | 15 | ||||
-rw-r--r-- | arch/arm/plat-orion/time.c | 2 | ||||
-rw-r--r-- | arch/arm/plat-versatile/sched-clock.c | 2 |
11 files changed, 20 insertions, 15 deletions
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index 82fc003aae8b..e0b91d8ef644 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -424,7 +424,7 @@ static void __init ixp4xx_clocksource_init(void) /* * sched_clock() */ -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { cycle_t cyc = ixp4xx_get_cycles(NULL); struct clocksource *cs = &clocksource_ixp4xx; diff --git a/arch/arm/mach-mmp/time.c b/arch/arm/mach-mmp/time.c index 0c0ab0931735..a2ea33d04e63 100644 --- a/arch/arm/mach-mmp/time.c +++ b/arch/arm/mach-mmp/time.c @@ -75,7 +75,7 @@ static inline uint32_t timer_read(void) return __raw_readl(TIMERS_VIRT_BASE + TMR_CVWR(0)); } -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { unsigned long long v = cnt32_to_63(timer_read()); return (v * tcr2ns_scale) >> TCR2NS_SCALE_FACTOR; diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c index caf92c0bfba5..b8d9dff00ad1 100644 --- a/arch/arm/mach-pxa/time.c +++ b/arch/arm/mach-pxa/time.c @@ -51,7 +51,7 @@ static void __init set_oscr2ns_scale(unsigned long oscr_rate) oscr2ns_scale++; } -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { unsigned long long v = cnt32_to_63(OSCR); return (v * oscr2ns_scale) >> OSCR2NS_SCALE_FACTOR; diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index 3c1fcd696714..33b4969e9d51 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -119,7 +119,7 @@ unsigned int sa11x0_getspeed(unsigned int cpu) * * ( * 1E9 / 3686400 => * 78125 / 288) */ -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { unsigned long long v = cnt32_to_63(OSCR); diff --git a/arch/arm/mach-tegra/timer.c b/arch/arm/mach-tegra/timer.c index b49f2f5025f2..c52bd84652e5 100644 --- a/arch/arm/mach-tegra/timer.c +++ b/arch/arm/mach-tegra/timer.c @@ -18,6 +18,7 @@ */ #include <linux/init.h> +#include <linux/sched.h> #include <linux/time.h> #include <linux/interrupt.h> #include <linux/irq.h> @@ -110,7 +111,7 @@ static struct clocksource tegra_clocksource = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { return cnt32_to_63(timer_readl(TIMERUS_CNTR_1US)) * 1000; } diff --git a/arch/arm/mach-u300/timer.c b/arch/arm/mach-u300/timer.c index 377ff7ff9182..6c68fe797903 100644 --- a/arch/arm/mach-u300/timer.c +++ b/arch/arm/mach-u300/timer.c @@ -9,6 +9,7 @@ * Author: Linus Walleij <linus.walleij@stericsson.com> */ #include <linux/interrupt.h> +#include <linux/sched.h> #include <linux/time.h> #include <linux/timex.h> #include <linux/clockchips.h> diff --git a/arch/arm/plat-iop/time.c b/arch/arm/plat-iop/time.c index 4332dc458ff9..d03a93295e60 100644 --- a/arch/arm/plat-iop/time.c +++ b/arch/arm/plat-iop/time.c @@ -17,6 +17,7 @@ #include <linux/interrupt.h> #include <linux/time.h> #include <linux/init.h> +#include <linux/sched.h> #include <linux/timex.h> #include <linux/io.h> #include <linux/clocksource.h> @@ -52,7 +53,7 @@ static struct clocksource iop_clocksource = { /* * IOP sched_clock() implementation via its clocksource. */ -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { cycle_t cyc = iop_clocksource_read(NULL); struct clocksource *cs = &iop_clocksource; diff --git a/arch/arm/plat-nomadik/timer.c b/arch/arm/plat-nomadik/timer.c index b0bd6dfea52b..c3b8a2246b99 100644 --- a/arch/arm/plat-nomadik/timer.c +++ b/arch/arm/plat-nomadik/timer.c @@ -19,6 +19,7 @@ #include <linux/err.h> #include <linux/cnt32_to_63.h> #include <linux/timer.h> +#include <linux/sched.h> #include <asm/mach/time.h> #include <plat/mtu.h> diff --git a/arch/arm/plat-omap/counter_32k.c b/arch/arm/plat-omap/counter_32k.c index 8f149f51cb46..aed301bfa2f9 100644 --- a/arch/arm/plat-omap/counter_32k.c +++ b/arch/arm/plat-omap/counter_32k.c @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/clk.h> #include <linux/io.h> +#include <linux/sched.h> #include <plat/common.h> #include <plat/board.h> @@ -44,7 +45,7 @@ static u32 offset_32k __read_mostly; #ifdef CONFIG_ARCH_OMAP16XX -static cycle_t omap16xx_32k_read(struct clocksource *cs) +static cycle_t notrace omap16xx_32k_read(struct clocksource *cs) { return omap_readl(OMAP16XX_TIMER_32K_SYNCHRONIZED) - offset_32k; } @@ -53,7 +54,7 @@ static cycle_t omap16xx_32k_read(struct clocksource *cs) #endif #ifdef CONFIG_ARCH_OMAP2420 -static cycle_t omap2420_32k_read(struct clocksource *cs) +static cycle_t notrace omap2420_32k_read(struct clocksource *cs) { return omap_readl(OMAP2420_32KSYNCT_BASE + 0x10) - offset_32k; } @@ -62,7 +63,7 @@ static cycle_t omap2420_32k_read(struct clocksource *cs) #endif #ifdef CONFIG_ARCH_OMAP2430 -static cycle_t omap2430_32k_read(struct clocksource *cs) +static cycle_t notrace omap2430_32k_read(struct clocksource *cs) { return omap_readl(OMAP2430_32KSYNCT_BASE + 0x10) - offset_32k; } @@ -71,7 +72,7 @@ static cycle_t omap2430_32k_read(struct clocksource *cs) #endif #ifdef CONFIG_ARCH_OMAP3 -static cycle_t omap34xx_32k_read(struct clocksource *cs) +static cycle_t notrace omap34xx_32k_read(struct clocksource *cs) { return omap_readl(OMAP3430_32KSYNCT_BASE + 0x10) - offset_32k; } @@ -80,7 +81,7 @@ static cycle_t omap34xx_32k_read(struct clocksource *cs) #endif #ifdef CONFIG_ARCH_OMAP4 -static cycle_t omap44xx_32k_read(struct clocksource *cs) +static cycle_t notrace omap44xx_32k_read(struct clocksource *cs) { return omap_readl(OMAP4430_32KSYNCT_BASE + 0x10) - offset_32k; } @@ -92,7 +93,7 @@ static cycle_t omap44xx_32k_read(struct clocksource *cs) * Kernel assumes that sched_clock can be called early but may not have * things ready yet. */ -static cycle_t omap_32k_read_dummy(struct clocksource *cs) +static cycle_t notrace omap_32k_read_dummy(struct clocksource *cs) { return 0; } @@ -109,7 +110,7 @@ static struct clocksource clocksource_32k = { * Returns current time from boot in nsecs. It's OK for this to wrap * around for now, as it's just a relative time stamp. */ -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { return clocksource_cyc2ns(clocksource_32k.read(&clocksource_32k), clocksource_32k.mult, clocksource_32k.shift); diff --git a/arch/arm/plat-orion/time.c b/arch/arm/plat-orion/time.c index 11e2583e85e4..123f96f4194f 100644 --- a/arch/arm/plat-orion/time.c +++ b/arch/arm/plat-orion/time.c @@ -55,7 +55,7 @@ static u32 ticks_per_jiffy; static unsigned long tclk2ns_scale; -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { unsigned long long v = cnt32_to_63(0xffffffff - readl(TIMER0_VAL)); return (v * tclk2ns_scale) >> TCLK2NS_SCALE_FACTOR; diff --git a/arch/arm/plat-versatile/sched-clock.c b/arch/arm/plat-versatile/sched-clock.c index 9696ddc238c9..42efd14ed4b3 100644 --- a/arch/arm/plat-versatile/sched-clock.c +++ b/arch/arm/plat-versatile/sched-clock.c @@ -42,7 +42,7 @@ * long as there is always less than 89 seconds between successive * calls to this function. */ -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { unsigned long long v = cnt32_to_63(readl(REFCOUNTER)); |