From 024b246ed24492d6c2ee14c34d742b137fce1b94 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 15 Aug 2008 09:19:40 -0700 Subject: 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 Cc: Richard Henderson Cc: Ivan Kokshaysky Signed-off-by: Linus Torvalds --- arch/alpha/include/asm/processor.h | 93 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 arch/alpha/include/asm/processor.h (limited to 'arch/alpha/include/asm/processor.h') diff --git a/arch/alpha/include/asm/processor.h b/arch/alpha/include/asm/processor.h new file mode 100644 index 00000000000..94afe585930 --- /dev/null +++ b/arch/alpha/include/asm/processor.h @@ -0,0 +1,93 @@ +/* + * include/asm-alpha/processor.h + * + * Copyright (C) 1994 Linus Torvalds + */ + +#ifndef __ASM_ALPHA_PROCESSOR_H +#define __ASM_ALPHA_PROCESSOR_H + +#include /* 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. */ +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); + +#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 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 */ -- cgit v1.2.3-70-g09d2