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/mn10300/include/asm/smp.h | 109 ++++++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 kernel/arch/mn10300/include/asm/smp.h (limited to 'kernel/arch/mn10300/include/asm/smp.h') diff --git a/kernel/arch/mn10300/include/asm/smp.h b/kernel/arch/mn10300/include/asm/smp.h new file mode 100644 index 000000000..56c42417d --- /dev/null +++ b/kernel/arch/mn10300/include/asm/smp.h @@ -0,0 +1,109 @@ +/* MN10300 SMP support + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * Modified by Matsushita Electric Industrial Co., Ltd. + * Modifications: + * 13-Nov-2006 MEI Define IPI-IRQ number and add inline/macro function + * for SMP support. + * 22-Jan-2007 MEI Add the define related to SMP_BOOT_IRQ. + * 23-Feb-2007 MEI Add the define related to SMP icahce invalidate. + * 23-Jun-2008 MEI Delete INTC_IPI. + * 22-Jul-2008 MEI Add smp_nmi_call_function and related defines. + * 04-Aug-2008 MEI Delete USE_DOIRQ_CACHE_IPI. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ +#ifndef _ASM_SMP_H +#define _ASM_SMP_H + +#ifndef __ASSEMBLY__ +#include +#include +#include +#endif + +#ifdef CONFIG_SMP +#include + +#define RESCHEDULE_IPI 63 +#define CALL_FUNC_SINGLE_IPI 192 +#define LOCAL_TIMER_IPI 193 +#define FLUSH_CACHE_IPI 194 +#define CALL_FUNCTION_NMI_IPI 195 +#define DEBUGGER_NMI_IPI 196 + +#define SMP_BOOT_IRQ 195 + +#define RESCHEDULE_GxICR_LV GxICR_LEVEL_6 +#define CALL_FUNCTION_GxICR_LV GxICR_LEVEL_4 +#define LOCAL_TIMER_GxICR_LV GxICR_LEVEL_4 +#define FLUSH_CACHE_GxICR_LV GxICR_LEVEL_0 +#define SMP_BOOT_GxICR_LV GxICR_LEVEL_0 +#define DEBUGGER_GxICR_LV CONFIG_DEBUGGER_IRQ_LEVEL + +#define TIME_OUT_COUNT_BOOT_IPI 100 +#define DELAY_TIME_BOOT_IPI 75000 + + +#ifndef __ASSEMBLY__ + +/** + * raw_smp_processor_id - Determine the raw CPU ID of the CPU running it + * + * What we really want to do is to use the CPUID hardware CPU register to get + * this information, but accesses to that aren't cached, and run at system bus + * speed, not CPU speed. A copy of this value is, however, stored in the + * thread_info struct, and that can be cached. + * + * An alternate way of dealing with this could be to use the EPSW.S bits to + * cache this information for systems with up to four CPUs. + */ +#define arch_smp_processor_id() (CPUID) +#if 0 +#define raw_smp_processor_id() (arch_smp_processor_id()) +#else +#define raw_smp_processor_id() (current_thread_info()->cpu) +#endif + +static inline int cpu_logical_map(int cpu) +{ + return cpu; +} + +static inline int cpu_number_map(int cpu) +{ + return cpu; +} + + +extern cpumask_t cpu_boot_map; + +extern void smp_init_cpus(void); +extern void smp_cache_interrupt(void); +extern void send_IPI_allbutself(int irq); +extern int smp_nmi_call_function(void (*func)(void *), void *info, int wait); + +extern void arch_send_call_function_single_ipi(int cpu); +extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); + +#ifdef CONFIG_HOTPLUG_CPU +extern int __cpu_disable(void); +extern void __cpu_die(unsigned int cpu); +#endif /* CONFIG_HOTPLUG_CPU */ + +#endif /* __ASSEMBLY__ */ +#else /* CONFIG_SMP */ +#ifndef __ASSEMBLY__ + +static inline void smp_init_cpus(void) {} +#define raw_smp_processor_id() 0 + +#endif /* __ASSEMBLY__ */ +#endif /* CONFIG_SMP */ + +#endif /* _ASM_SMP_H */ -- cgit 1.2.3-korg