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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-15 09:19:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-15 09:19:40 -0700
commit024b246ed24492d6c2ee14c34d742b137fce1b94 (patch)
tree428444950025503218c96b03c86f749403626dec /arch/alpha/include/asm/smp.h
parent9419fc1c957d600093baaea247fef23cca3b4e93 (diff)
alpha: move include/asm-alpha to arch/alpha/include/asm
Sam Ravnborg did the build-test that the direct header file move works, I'm just committing it. This is a pure move: mkdir arch/alpha/include git mv include/asm-alpha arch/alpha/include/asm with no other changes. Requested-and-tested-by: Sam Ravnborg <sam@ravnborg.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/alpha/include/asm/smp.h')
-rw-r--r--arch/alpha/include/asm/smp.h62
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 000000000000..544c69af8168
--- /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