Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / alpha / include / asm / processor.h

diff --git a/kernel/arch/alpha/include/asm/processor.h b/kernel/arch/alpha/include/asm/processor.h
new file mode 100644 (file)
index 0000000..43a7559
--- /dev/null
+++ b/kernel/arch/alpha/include/asm/processor.h
@@ -0,0 +1,89 @@
+/*
+ * 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)
+
+#define STACK_TOP \
+  (current->personality & ADDR_LIMIT_32BIT ? 0x80000000 : 0x00120000000UL)
+
+#define STACK_TOP_MAX  0x00120000000UL
+
+/* 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.  */
+struct pt_regs;
+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 *);
+
+unsigned long get_wchan(struct task_struct *p);
+
+#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)
+
+#define KSTK_ESP(tsk) \
+  ((tsk) == current ? rdusp() : task_thread_info(tsk)->pcb.usp)
+
+#define cpu_relax()    barrier()
+#define cpu_relax_lowlatency() cpu_relax()
+
+#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
+
+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
+
+#endif /* __ASM_ALPHA_PROCESSOR_H */