1 files changed, 118 insertions, 0 deletions

diff --git a/include/asm-alpha/processor.h b/include/asm-alpha/processor.h
new file mode 100644
index 000000000000..059780a7d3d7
--- /dev/null
+++ b/include/asm-alpha/processor.h
@@ -0,0 +1,118 @@
+/*
+ * include/asm-alpha/processor.h
+ *
+ * Copyright (C) 1994 Linus Torvalds
+ */
+
+#ifndef __ASM_ALPHA_PROCESSOR_H
+#define __ASM_ALPHA_PROCESSOR_H
+
+#include <linux/personality.h>  /* for ADDR_LIMIT_32BIT */
+
+/*
+ * Returns current instruction pointer ("program counter").
+ */
+#define current_text_addr() \
+  ({ void *__pc; __asm__ ("br %0,.+4" : "=r"(__pc)); __pc; })
+
+/*
+ * We have a 42-bit user address space: 4TB user VM...
+ */
+#define TASK_SIZE (0x40000000000UL)
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE \
+  ((current->personality & ADDR_LIMIT_32BIT) ? 0x40000000 : TASK_SIZE / 2)
+
+typedef struct {
+        unsigned long seg;
+} mm_segment_t;
+
+/* This is dead.  Everything has been moved to thread_info.  */
+struct thread_struct { };
+#define INIT_THREAD  { }
+
+/* Return saved PC of a blocked thread.  */
+struct task_struct;
+extern unsigned long thread_saved_pc(struct task_struct *);
+
+/* Do necessary setup to start up a newly executed thread.  */
+extern void start_thread(struct pt_regs *, unsigned long, unsigned long);
+
+/* Free all resources held by a thread. */
+extern void release_thread(struct task_struct *);
+
+/* Prepare to copy thread state - unlazy all lazy status */
+#define prepare_to_copy(tsk)    do { } while (0)
+
+/* Create a kernel thread without removing it from tasklists.  */
+extern long kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
+
+unsigned long get_wchan(struct task_struct *p);
+
+/* See arch/alpha/kernel/ptrace.c for details.  */
+#define PT_REG(reg) \
+  (PAGE_SIZE*2 - sizeof(struct pt_regs) + offsetof(struct pt_regs, reg))
+
+#define SW_REG(reg) \
+ (PAGE_SIZE*2 - sizeof(struct pt_regs) - sizeof(struct switch_stack) \
+  + offsetof(struct switch_stack, reg))
+
+#define KSTK_EIP(tsk) \
+  (*(unsigned long *)(PT_REG(pc) + (unsigned long) ((tsk)->thread_info)))
+
+#define KSTK_ESP(tsk) \
+  ((tsk) == current ? rdusp() : (tsk)->thread_info->pcb.usp)
+
+#define cpu_relax()     barrier()
+
+#define ARCH_HAS_PREFETCH
+#define ARCH_HAS_PREFETCHW
+#define ARCH_HAS_SPINLOCK_PREFETCH
+
+#ifndef CONFIG_SMP
+/* Nothing to prefetch. */
+#define spin_lock_prefetch(lock)        do { } while (0)
+#endif
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
+extern inline void prefetch(const void *ptr)  
+{ 
+        __builtin_prefetch(ptr, 0, 3);
+}
+
+extern inline void prefetchw(const void *ptr)  
+{
+        __builtin_prefetch(ptr, 1, 3);
+}
+
+#ifdef CONFIG_SMP
+extern inline void spin_lock_prefetch(const void *ptr)  
+{
+        __builtin_prefetch(ptr, 1, 3);
+}
+#endif
+
+#else
+extern inline void prefetch(const void *ptr)  
+{ 
+        __asm__ ("ldl $31,%0" : : "m"(*(char *)ptr)); 
+}
+
+extern inline void prefetchw(const void *ptr)  
+{
+        __asm__ ("ldq $31,%0" : : "m"(*(char *)ptr)); 
+}
+
+#ifdef CONFIG_SMP
+extern inline void spin_lock_prefetch(const void *ptr)  
+{
+        __asm__ ("ldq $31,%0" : : "m"(*(char *)ptr)); 
+}
+#endif
+
+#endif /* GCC 3.1 */
+
+#endif /* __ASM_ALPHA_PROCESSOR_H */