Initial import of modified Linux 2.6.28 tree

Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y

1 files changed, 66 insertions, 0 deletions

diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h
new file mode 100644
index 0000000..409e698
--- /dev/null
+++ b/arch/parisc/include/asm/smp.h
@@ -0,0 +1,66 @@
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+
+#if defined(CONFIG_SMP)
+
+/* Page Zero Location PDC will look for the address to branch to when we poke
+** slave CPUs still in "Icache loop".
+*/
+#define PDC_OS_BOOT_RENDEZVOUS     0x10
+#define PDC_OS_BOOT_RENDEZVOUS_HI  0x28
+
+#ifndef ASSEMBLY
+#include <linux/bitops.h>
+#include <linux/threads.h>	/* for NR_CPUS */
+#include <linux/cpumask.h>
+typedef unsigned long address_t;
+
+extern cpumask_t cpu_online_map;
+
+
+/*
+ *	Private routines/data
+ *
+ *	physical and logical are equivalent until we support CPU hotplug.
+ */
+#define cpu_number_map(cpu)	(cpu)
+#define cpu_logical_map(cpu)	(cpu)
+
+extern void smp_send_reschedule(int cpu);
+extern void smp_send_all_nop(void);
+
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
+
+#endif /* !ASSEMBLY */
+
+/*
+ *	This magic constant controls our willingness to transfer
+ *      a process across CPUs. Such a transfer incurs cache and tlb
+ *      misses. The current value is inherited from i386. Still needs
+ *      to be tuned for parisc.
+ */
+ 
+#define PROC_CHANGE_PENALTY	15		/* Schedule penalty */
+
+#define raw_smp_processor_id()	(current_thread_info()->cpu)
+
+#else /* CONFIG_SMP */
+
+static inline void smp_send_all_nop(void) { return; }
+
+#endif
+
+#define NO_PROC_ID		0xFF		/* No processor magic marker */
+#define ANY_PROC_ID		0xFF		/* Any processor magic marker */
+static inline int __cpu_disable (void) {
+  return 0;
+}
+static inline void __cpu_die (unsigned int cpu) {
+  while(1)
+    ;
+}
+extern int __cpu_up (unsigned int cpu);
+
+#endif /*  __ASM_SMP_H */