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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-03 11:02:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-03 11:02:39 -0700 |
| commit | d7a0dab82fef61bebd34f2bbb9314b075153b646 (patch) | |
| tree | 1ec0a1d31ed8231bcce7f20c6b289e57a8969ca9 /include/linux | |
| parent | 4b978934a440c1aafce986353001b03289eaa040 (diff) | |
| parent | 8db549491c4a3ce9e1d509b75f78516e497f48ec (diff) | |
| download | cachepc-linux-d7a0dab82fef61bebd34f2bbb9314b075153b646.tar.gz cachepc-linux-d7a0dab82fef61bebd34f2bbb9314b075153b646.zip | |
Merge branch 'core-smp-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core SMP updates from Ingo Molnar:
"Two main change is generic vCPU pinning and physical CPU SMP-call
support, for Xen to be able to perform certain calls on specific
physical CPUs - by Juergen Gross"
* 'core-smp-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
smp: Allocate smp_call_on_cpu() workqueue on stack too
hwmon: Use smp_call_on_cpu() for dell-smm i8k
dcdbas: Make use of smp_call_on_cpu()
xen: Add xen_pin_vcpu() to support calling functions on a dedicated pCPU
smp: Add function to execute a function synchronously on a CPU
virt, sched: Add generic vCPU pinning support
xen: Sync xen header
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/hypervisor.h | 17 | ||||
| -rw-r--r-- | include/linux/smp.h | 3 |
2 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/hypervisor.h b/include/linux/hypervisor.h new file mode 100644 index 000000000000..3fa5ef2b3759 --- /dev/null +++ b/include/linux/hypervisor.h @@ -0,0 +1,17 @@ +#ifndef __LINUX_HYPEVISOR_H +#define __LINUX_HYPEVISOR_H + +/* + * Generic Hypervisor support + * Juergen Gross <jgross@suse.com> + */ + +#ifdef CONFIG_HYPERVISOR_GUEST +#include <asm/hypervisor.h> +#else +static inline void hypervisor_pin_vcpu(int cpu) +{ +} +#endif + +#endif /* __LINUX_HYPEVISOR_H */ diff --git a/include/linux/smp.h b/include/linux/smp.h index eccae4690f41..8e0cb7a0f836 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -196,6 +196,9 @@ extern void arch_enable_nonboot_cpus_end(void); void smp_setup_processor_id(void); +int smp_call_on_cpu(unsigned int cpu, int (*func)(void *), void *par, + bool phys); + /* SMP core functions */ int smpcfd_prepare_cpu(unsigned int cpu); int smpcfd_dead_cpu(unsigned int cpu); |