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/sparc/prom/mp.c | |
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/sparc/prom/mp.c')
-rw-r--r-- | kernel/arch/sparc/prom/mp.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/kernel/arch/sparc/prom/mp.c b/kernel/arch/sparc/prom/mp.c new file mode 100644 index 000000000..0da8256cf --- /dev/null +++ b/kernel/arch/sparc/prom/mp.c @@ -0,0 +1,43 @@ +/* + * mp.c: OpenBoot Prom Multiprocessor support routines. Don't call + * these on a UP or else you will halt and catch fire. ;) + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/sched.h> + +#include <asm/openprom.h> +#include <asm/oplib.h> + +extern void restore_current(void); + +/* Start cpu with prom-tree node 'cpunode' using context described + * by 'ctable_reg' in context 'ctx' at program counter 'pc'. + * + * XXX Have to look into what the return values mean. XXX + */ +int +prom_startcpu(int cpunode, struct linux_prom_registers *ctable_reg, int ctx, char *pc) +{ + int ret; + unsigned long flags; + + spin_lock_irqsave(&prom_lock, flags); + switch(prom_vers) { + case PROM_V0: + case PROM_V2: + default: + ret = -1; + break; + case PROM_V3: + ret = (*(romvec->v3_cpustart))(cpunode, (int) ctable_reg, ctx, pc); + break; + } + restore_current(); + spin_unlock_irqrestore(&prom_lock, flags); + + return ret; +} |