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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/powerpc/platforms/chrp/smp.c | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/powerpc/platforms/chrp/smp.c')
-rw-r--r-- | arch/powerpc/platforms/chrp/smp.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/chrp/smp.c b/arch/powerpc/platforms/chrp/smp.c new file mode 100644 index 00000000..feab30bb --- /dev/null +++ b/arch/powerpc/platforms/chrp/smp.c @@ -0,0 +1,54 @@ +/* + * Smp support for CHRP machines. + * + * Written by Cort Dougan (cort@cs.nmt.edu) borrowing a great + * deal of code from the sparc and intel versions. + * + * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu> + * + */ + +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/smp.h> +#include <linux/interrupt.h> +#include <linux/kernel_stat.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/spinlock.h> + +#include <asm/ptrace.h> +#include <linux/atomic.h> +#include <asm/irq.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/sections.h> +#include <asm/io.h> +#include <asm/prom.h> +#include <asm/smp.h> +#include <asm/machdep.h> +#include <asm/mpic.h> +#include <asm/rtas.h> + +static int __devinit smp_chrp_kick_cpu(int nr) +{ + *(unsigned long *)KERNELBASE = nr; + asm volatile("dcbf 0,%0"::"r"(KERNELBASE):"memory"); + + return 0; +} + +static void __devinit smp_chrp_setup_cpu(int cpu_nr) +{ + mpic_setup_this_cpu(); +} + +/* CHRP with openpic */ +struct smp_ops_t chrp_smp_ops = { + .message_pass = smp_mpic_message_pass, + .probe = smp_mpic_probe, + .kick_cpu = smp_chrp_kick_cpu, + .setup_cpu = smp_chrp_setup_cpu, + .give_timebase = rtas_give_timebase, + .take_timebase = rtas_take_timebase, +}; |