From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/alpha/include/asm/smp.h | 59 +++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 kernel/arch/alpha/include/asm/smp.h (limited to 'kernel/arch/alpha/include/asm/smp.h') diff --git a/kernel/arch/alpha/include/asm/smp.h b/kernel/arch/alpha/include/asm/smp.h new file mode 100644 index 000000000..c46e714aa --- /dev/null +++ b/kernel/arch/alpha/include/asm/smp.h @@ -0,0 +1,59 @@ +#ifndef __ASM_SMP_H +#define __ASM_SMP_H + +#include +#include +#include +#include + +/* HACK: Cabrio WHAMI return value is bogus if more than 8 bits used.. :-( */ + +static __inline__ unsigned char +__hard_smp_processor_id(void) +{ + register unsigned char __r0 __asm__("$0"); + __asm__ __volatile__( + "call_pal %1 #whami" + : "=r"(__r0) + :"i" (PAL_whami) + : "$1", "$22", "$23", "$24", "$25"); + return __r0; +} + +#ifdef CONFIG_SMP + +#include + +struct cpuinfo_alpha { + unsigned long loops_per_jiffy; + unsigned long last_asn; + int need_new_asn; + int asn_lock; + unsigned long ipi_count; + unsigned long prof_multiplier; + unsigned long prof_counter; + unsigned char mcheck_expected; + unsigned char mcheck_taken; + unsigned char mcheck_extra; +} __attribute__((aligned(64))); + +extern struct cpuinfo_alpha cpu_data[NR_CPUS]; + +#define hard_smp_processor_id() __hard_smp_processor_id() +#define raw_smp_processor_id() (current_thread_info()->cpu) + +extern int smp_num_cpus; + +extern void arch_send_call_function_single_ipi(int cpu); +extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); + +#else /* CONFIG_SMP */ + +#define hard_smp_processor_id() 0 +#define smp_call_function_on_cpu(func,info,wait,cpu) ({ 0; }) + +#endif /* CONFIG_SMP */ + +#define NO_PROC_ID (-1) + +#endif -- cgit 1.2.3-korg