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x86: Move percpu clockevents setup to x86_init_ops

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paravirt overrides the setup of the default apic timers as per cpu
timers. Moorestown needs to override that as well.

Move it to x86_init_ops setup and create a separate x86_cpuinit struct
which holds the function for the secondary evtl. hotplugabble CPUs.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2009-08-19 12:35:53 +02:00
parent f1d7062a23
commit 736decac64
11 changed files with 42 additions and 28 deletions
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5
arch/x86/include/asm/apic.h
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@ -70,9 +70,6 @@ static inline void default_inquire_remote_apic(int apicid)
*/
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else
#define setup_boot_clock setup_boot_APIC_clock
#define setup_secondary_clock setup_secondary_APIC_clock
#endif
#ifdef CONFIG_X86_64
@ -245,6 +242,8 @@ static inline void lapic_shutdown(void) { }
static inline void init_apic_mappings(void) { }
static inline void disable_local_APIC(void) { }
static inline void apic_disable(void) { }
# define setup_boot_APIC_clock x86_init_noop
# define setup_secondary_APIC_clock x86_init_noop
#endif /* !CONFIG_X86_LOCAL_APIC */
#ifdef CONFIG_X86_64

12
arch/x86/include/asm/paravirt.h
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@ -333,18 +333,6 @@ static inline void slow_down_io(void)
#endif
}
#ifdef CONFIG_X86_LOCAL_APIC
static inline void setup_boot_clock(void)
{
PVOP_VCALL0(pv_apic_ops.setup_boot_clock);
}
static inline void setup_secondary_clock(void)
{
PVOP_VCALL0(pv_apic_ops.setup_secondary_clock);
}
#endif
#ifdef CONFIG_SMP
static inline void startup_ipi_hook(int phys_apicid, unsigned long start_eip,
unsigned long start_esp)

3
arch/x86/include/asm/paravirt_types.h
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@ -218,9 +218,6 @@ struct pv_irq_ops {
struct pv_apic_ops {
#ifdef CONFIG_X86_LOCAL_APIC
void (*setup_boot_clock)(void);
void (*setup_secondary_clock)(void);
void (*startup_ipi_hook)(int phys_apicid,
unsigned long start_eip,
unsigned long start_esp);

19
arch/x86/include/asm/x86_init.h
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@ -78,6 +78,15 @@ struct x86_init_paging {
void (*pagetable_setup_done)(pgd_t *base);
};
/**
* struct x86_init_timers - platform specific timer setup
* @setup_perpcu_clockev: set up the per cpu clock event device for the
* boot cpu
*/
struct x86_init_timers {
void (*setup_percpu_clockev)(void);
};
/**
* struct x86_init_ops - functions for platform specific setup
*
@ -88,9 +97,19 @@ struct x86_init_ops {
struct x86_init_irqs irqs;
struct x86_init_oem oem;
struct x86_init_paging paging;
struct x86_init_timers timers;
};
/**
* struct x86_cpuinit_ops - platform specific cpu hotplug setups
* @setup_percpu_clockev: set up the per cpu clock event device
*/
struct x86_cpuinit_ops {
void (*setup_percpu_clockev)(void);
};
extern struct x86_init_ops x86_init;
extern struct x86_cpuinit_ops x86_cpuinit;
extern void x86_init_noop(void);
extern void x86_init_uint_noop(unsigned int unused);

3
arch/x86/kernel/apic/apic.c
View File

@ -36,6 +36,7 @@
#include <linux/mm.h>
#include <asm/perf_counter.h>
#include <asm/x86_init.h>
#include <asm/pgalloc.h>
#include <asm/atomic.h>
#include <asm/mpspec.h>
@ -1701,7 +1702,7 @@ int __init APIC_init_uniprocessor(void)
localise_nmi_watchdog();
#endif
setup_boot_clock();
x86_init.timers.setup_percpu_clockev();
#ifdef CONFIG_X86_64
check_nmi_watchdog();
#endif

5
arch/x86/kernel/kvmclock.c
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@ -22,6 +22,8 @@
#include <asm/msr.h>
#include <asm/apic.h>
#include <linux/percpu.h>
#include <asm/x86_init.h>
#include <asm/reboot.h>
#define KVM_SCALE 22
@ -187,7 +189,8 @@ void __init kvmclock_init(void)
pv_time_ops.sched_clock = kvm_clock_read;
pv_time_ops.get_tsc_khz = kvm_get_tsc_khz;
#ifdef CONFIG_X86_LOCAL_APIC
pv_apic_ops.setup_secondary_clock = kvm_setup_secondary_clock;
x86_cpuinit.setup_percpu_clockev =
kvm_setup_secondary_clock;
#endif
#ifdef CONFIG_SMP
smp_ops.smp_prepare_boot_cpu = kvm_smp_prepare_boot_cpu;

2
arch/x86/kernel/paravirt.c
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@ -387,8 +387,6 @@ struct pv_cpu_ops pv_cpu_ops = {
struct pv_apic_ops pv_apic_ops = {
#ifdef CONFIG_X86_LOCAL_APIC
.setup_boot_clock = setup_boot_APIC_clock,
.setup_secondary_clock = setup_secondary_APIC_clock,
.startup_ipi_hook = paravirt_nop,
#endif
};

4
arch/x86/kernel/smpboot.c
View File

@ -323,7 +323,7 @@ notrace static void __cpuinit start_secondary(void *unused)
/* enable local interrupts */
local_irq_enable();
setup_secondary_clock();
x86_cpuinit.setup_percpu_clockev();
wmb();
cpu_idle();
@ -1112,7 +1112,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
printk(KERN_INFO "CPU%d: ", 0);
print_cpu_info(&cpu_data(0));
setup_boot_clock();
x86_init.timers.setup_percpu_clockev();
if (is_uv_system())
uv_system_init();

4
arch/x86/kernel/vmi_32.c
View File

@ -821,8 +821,8 @@ static inline int __init activate_vmi(void)
pv_time_ops.get_wallclock = vmi_get_wallclock;
pv_time_ops.set_wallclock = vmi_set_wallclock;
#ifdef CONFIG_X86_LOCAL_APIC
pv_apic_ops.setup_boot_clock = vmi_time_bsp_init;
pv_apic_ops.setup_secondary_clock = vmi_time_ap_init;
x86_init.timers.setup_percpu_clockev = vmi_time_bsp_init;
x86_cpuinit.setup_percpu_clockev = vmi_time_ap_init;
#endif
pv_time_ops.sched_clock = vmi_sched_clock;
pv_time_ops.get_tsc_khz = vmi_tsc_khz;

9
arch/x86/kernel/x86_init.c
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@ -9,6 +9,7 @@
#include <asm/paravirt.h>
#include <asm/mpspec.h>
#include <asm/setup.h>
#include <asm/apic.h>
#include <asm/e820.h>
#include <asm/irq.h>
@ -54,4 +55,12 @@ struct __initdata x86_init_ops x86_init = {
.pagetable_setup_start = native_pagetable_setup_start,
.pagetable_setup_done = native_pagetable_setup_done,
},
.timers = {
.setup_percpu_clockev = setup_boot_APIC_clock,
},
};
__cpuinitdata struct x86_cpuinit_ops x86_cpuinit = {
.setup_percpu_clockev = setup_secondary_APIC_clock,
};

4
arch/x86/xen/enlighten.c
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@ -912,8 +912,6 @@ static const struct pv_cpu_ops xen_cpu_ops __initdata = {
static const struct pv_apic_ops xen_apic_ops __initdata = {
#ifdef CONFIG_X86_LOCAL_APIC
.setup_boot_clock = paravirt_nop,
.setup_secondary_clock = paravirt_nop,
.startup_ipi_hook = paravirt_nop,
#endif
};
@ -979,6 +977,8 @@ asmlinkage void __init xen_start_kernel(void)
x86_init.resources.memory_setup = xen_memory_setup;
x86_init.oem.arch_setup = xen_arch_setup;
x86_init.oem.banner = xen_banner;
x86_init.timers.setup_percpu_clockev = x86_init_noop;
x86_cpuinit.setup_percpu_clockev = x86_init_noop;
#ifdef CONFIG_X86_64
/*