Merge branch 'linus' into perfcounters/core-v2

Merge reason: we have gathered quite a few conflicts, need to merge upstream

Conflicts:
	arch/powerpc/kernel/Makefile
	arch/x86/ia32/ia32entry.S
	arch/x86/include/asm/hardirq.h
	arch/x86/include/asm/unistd_32.h
	arch/x86/include/asm/unistd_64.h
	arch/x86/kernel/cpu/common.c
	arch/x86/kernel/irq.c
	arch/x86/kernel/syscall_table_32.S
	arch/x86/mm/iomap_32.c
	include/linux/sched.h
	kernel/Makefile

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 44 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/dbell.c b/arch/powerpc/kernel/dbell.c
new file mode 100644
index 000000000000..1493734cd871
--- /dev/null
+++ b/arch/powerpc/kernel/dbell.c
@@ -0,0 +1,44 @@
+/*
+ * Author: Kumar Gala <galak@kernel.crashing.org>
+ *
+ * Copyright 2009 Freescale Semiconductor Inc.
+ *
+ * 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.
+ */
+
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/smp.h>
+#include <linux/threads.h>
+
+#include <asm/dbell.h>
+
+#ifdef CONFIG_SMP
+unsigned long dbell_smp_message[NR_CPUS];
+
+void smp_dbell_message_pass(int target, int msg)
+{
+	int i;
+
+	if(target < NR_CPUS) {
+		set_bit(msg, &dbell_smp_message[target]);
+		ppc_msgsnd(PPC_DBELL, 0, target);
+	}
+	else if(target == MSG_ALL_BUT_SELF) {
+		for_each_online_cpu(i) {
+			if (i == smp_processor_id())
+				continue;
+			set_bit(msg, &dbell_smp_message[i]);
+			ppc_msgsnd(PPC_DBELL, 0, i);
+		}
+	}
+	else { /* target == MSG_ALL */
+		for_each_online_cpu(i)
+			set_bit(msg, &dbell_smp_message[i]);
+		ppc_msgsnd(PPC_DBELL, PPC_DBELL_MSG_BRDCAST, 0);
+	}
+}
+#endif