Merge branch 'linus' into sched/devel

1 files changed, 62 insertions, 0 deletions

diff --git a/arch/alpha/include/asm/smp.h b/arch/alpha/include/asm/smp.h
new file mode 100644
index 00000000000..544c69af816
--- /dev/null
+++ b/arch/alpha/include/asm/smp.h
@@ -0,0 +1,62 @@
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/bitops.h>
+#include <asm/pal.h>
+
+/* HACK: Cabrio WHAMI return value is bogus if more than 8 bits used.. :-( */
+
+static __inline__ unsigned char
+__hard_smp_processor_id(void)
+{
+	register unsigned char __r0 __asm__("$0");
+	__asm__ __volatile__(
+		"call_pal %1 #whami"
+		: "=r"(__r0)
+		:"i" (PAL_whami)
+		: "$1", "$22", "$23", "$24", "$25");
+	return __r0;
+}
+
+#ifdef CONFIG_SMP
+
+#include <asm/irq.h>
+
+struct cpuinfo_alpha {
+	unsigned long loops_per_jiffy;
+	unsigned long last_asn;
+	int need_new_asn;
+	int asn_lock;
+	unsigned long ipi_count;
+	unsigned long prof_multiplier;
+	unsigned long prof_counter;
+	unsigned char mcheck_expected;
+	unsigned char mcheck_taken;
+	unsigned char mcheck_extra;
+} __attribute__((aligned(64)));
+
+extern struct cpuinfo_alpha cpu_data[NR_CPUS];
+
+#define PROC_CHANGE_PENALTY     20
+
+#define hard_smp_processor_id()	__hard_smp_processor_id()
+#define raw_smp_processor_id()	(current_thread_info()->cpu)
+
+extern int smp_num_cpus;
+#define cpu_possible_map	cpu_present_map
+
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
+
+#else /* CONFIG_SMP */
+
+#define hard_smp_processor_id()		0
+#define smp_call_function_on_cpu(func,info,wait,cpu)    ({ 0; })
+
+#endif /* CONFIG_SMP */
+
+#define NO_PROC_ID	(-1)
+
+#endif