Commit 01363220 authored by Kyle McMartin's avatar Kyle McMartin
Browse files

[PARISC] clocksource: Move update_cr16_clocksource later in boot 



smp_cpus_done is too early for us... before we even do a device
inventory! Move update_cr16_clocksource into the tail end of
processor_probe() and stub it out on CONFIG_SMP=n builds.

Verified that clocksource0 is properly updated to use jiffies
on an SMP build.

Signed-off-by: default avatarKyle McMartin <kyle@parisc-linux.org>
parent fb55a0de

arch/parisc/kernel/processor.c

+8 −0
Original line number Diff line number Diff line
@@ -48,6 +48,8 @@ EXPORT_SYMBOL(boot_cpu_data); 


struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly;



extern int update_cr16_clocksource(void);	/* from time.c */



/*

**  	PARISC CPU driver - claim "device" and initialize CPU data structures.

**
@@ -198,6 +200,12 @@ static int __init processor_probe(struct parisc_device *dev) 
	}

#endif



	/* If we've registered more than one cpu,

	 * we'll use the jiffies clocksource since cr16

	 * is not synchronized between CPUs.

	 */

	update_cr16_clocksource();



	return 0;

}

arch/parisc/kernel/smp.c

+0 −4
Original line number Diff line number Diff line
@@ -567,10 +567,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus) 


void smp_cpus_done(unsigned int cpu_max)

{

	extern int update_cr16_clocksource(void);



	update_cr16_clocksource();



	return;

}

arch/parisc/kernel/time.c

+5 −0
Original line number Diff line number Diff line
@@ -200,6 +200,11 @@ int update_cr16_clocksource(void) 


	return change;

}

#else

int update_cr16_clocksource(void)

{

	return 0; /* no change */

}

#endif /*CONFIG_SMP*/



void __init start_cpu_itimer(void)

CRA Git | Maintained and supported by SUSTech CRA and CCSE