diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/mips/include/asm/smp-ops.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
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 <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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 <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/mips/include/asm/smp-ops.h')
-rw-r--r-- | kernel/arch/mips/include/asm/smp-ops.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/kernel/arch/mips/include/asm/smp-ops.h b/kernel/arch/mips/include/asm/smp-ops.h new file mode 100644 index 000000000..6ba1fb8b1 --- /dev/null +++ b/kernel/arch/mips/include/asm/smp-ops.h @@ -0,0 +1,116 @@ +/* + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file "COPYING" in the main directory of this + * archive for more details. + * + * Copyright (C) 2000 - 2001 by Kanoj Sarcar (kanoj@sgi.com) + * Copyright (C) 2000 - 2001 by Silicon Graphics, Inc. + * Copyright (C) 2000, 2001, 2002 Ralf Baechle + * Copyright (C) 2000, 2001 Broadcom Corporation + */ +#ifndef __ASM_SMP_OPS_H +#define __ASM_SMP_OPS_H + +#include <linux/errno.h> + +#include <asm/mips-cm.h> + +#ifdef CONFIG_SMP + +#include <linux/cpumask.h> + +struct task_struct; + +struct plat_smp_ops { + void (*send_ipi_single)(int cpu, unsigned int action); + void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action); + void (*init_secondary)(void); + void (*smp_finish)(void); + void (*boot_secondary)(int cpu, struct task_struct *idle); + void (*smp_setup)(void); + void (*prepare_cpus)(unsigned int max_cpus); +#ifdef CONFIG_HOTPLUG_CPU + int (*cpu_disable)(void); + void (*cpu_die)(unsigned int cpu); +#endif +}; + +extern void register_smp_ops(struct plat_smp_ops *ops); + +static inline void plat_smp_setup(void) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + mp_ops->smp_setup(); +} + +extern void gic_send_ipi_single(int cpu, unsigned int action); +extern void gic_send_ipi_mask(const struct cpumask *mask, unsigned int action); + +#else /* !CONFIG_SMP */ + +struct plat_smp_ops; + +static inline void plat_smp_setup(void) +{ + /* UP, nothing to do ... */ +} + +static inline void register_smp_ops(struct plat_smp_ops *ops) +{ +} + +#endif /* !CONFIG_SMP */ + +static inline int register_up_smp_ops(void) +{ +#ifdef CONFIG_SMP_UP + extern struct plat_smp_ops up_smp_ops; + + register_smp_ops(&up_smp_ops); + + return 0; +#else + return -ENODEV; +#endif +} + +static inline int register_cmp_smp_ops(void) +{ +#ifdef CONFIG_MIPS_CMP + extern struct plat_smp_ops cmp_smp_ops; + + if (!mips_cm_present()) + return -ENODEV; + + register_smp_ops(&cmp_smp_ops); + + return 0; +#else + return -ENODEV; +#endif +} + +static inline int register_vsmp_smp_ops(void) +{ +#ifdef CONFIG_MIPS_MT_SMP + extern struct plat_smp_ops vsmp_smp_ops; + + register_smp_ops(&vsmp_smp_ops); + + return 0; +#else + return -ENODEV; +#endif +} + +#ifdef CONFIG_MIPS_CPS +extern int register_cps_smp_ops(void); +#else +static inline int register_cps_smp_ops(void) +{ + return -ENODEV; +} +#endif + +#endif /* __ASM_SMP_OPS_H */ |