aboutsummaryrefslogtreecommitdiff
path: root/arch/ppc64/kernel/iSeries_smp.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ppc64/kernel/iSeries_smp.c')
-rw-r--r--arch/ppc64/kernel/iSeries_smp.c121
1 files changed, 0 insertions, 121 deletions
diff --git a/arch/ppc64/kernel/iSeries_smp.c b/arch/ppc64/kernel/iSeries_smp.c
deleted file mode 100644
index f982e5b805f..00000000000
--- a/arch/ppc64/kernel/iSeries_smp.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * SMP support for iSeries machines.
- *
- * Dave Engebretsen, Peter Bergner, and
- * Mike Corrigan {engebret|bergner|mikec}@us.ibm.com
- *
- * Plus various changes from other IBM teams...
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/cache.h>
-#include <linux/err.h>
-#include <linux/sysdev.h>
-#include <linux/cpu.h>
-
-#include <asm/ptrace.h>
-#include <asm/atomic.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/paca.h>
-#include <asm/iSeries/HvCall.h>
-#include <asm/time.h>
-#include <asm/ppcdebug.h>
-#include <asm/machdep.h>
-#include <asm/cputable.h>
-#include <asm/system.h>
-
-static unsigned long iSeries_smp_message[NR_CPUS];
-
-void iSeries_smp_message_recv( struct pt_regs * regs )
-{
- int cpu = smp_processor_id();
- int msg;
-
- if ( num_online_cpus() < 2 )
- return;
-
- for ( msg = 0; msg < 4; ++msg )
- if ( test_and_clear_bit( msg, &iSeries_smp_message[cpu] ) )
- smp_message_recv( msg, regs );
-}
-
-static inline void smp_iSeries_do_message(int cpu, int msg)
-{
- set_bit(msg, &iSeries_smp_message[cpu]);
- HvCall_sendIPI(&(paca[cpu]));
-}
-
-static void smp_iSeries_message_pass(int target, int msg)
-{
- int i;
-
- if (target < NR_CPUS)
- smp_iSeries_do_message(target, msg);
- else {
- for_each_online_cpu(i) {
- if (target == MSG_ALL_BUT_SELF
- && i == smp_processor_id())
- continue;
- smp_iSeries_do_message(i, msg);
- }
- }
-}
-
-static int smp_iSeries_probe(void)
-{
- return cpus_weight(cpu_possible_map);
-}
-
-static void smp_iSeries_kick_cpu(int nr)
-{
- BUG_ON(nr < 0 || nr >= NR_CPUS);
-
- /* Verify that our partition has a processor nr */
- if (paca[nr].lppaca.dyn_proc_status >= 2)
- return;
-
- /* The processor is currently spinning, waiting
- * for the cpu_start field to become non-zero
- * After we set cpu_start, the processor will
- * continue on to secondary_start in iSeries_head.S
- */
- paca[nr].cpu_start = 1;
-}
-
-static void __devinit smp_iSeries_setup_cpu(int nr)
-{
-}
-
-static struct smp_ops_t iSeries_smp_ops = {
- .message_pass = smp_iSeries_message_pass,
- .probe = smp_iSeries_probe,
- .kick_cpu = smp_iSeries_kick_cpu,
- .setup_cpu = smp_iSeries_setup_cpu,
-};
-
-/* This is called very early. */
-void __init smp_init_iSeries(void)
-{
- smp_ops = &iSeries_smp_ops;
-}