diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-05-11 14:44:27 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-05-11 14:44:31 +0200 |
commit | 41fb454ebe6024f5c1e3b3cbc0abc0da762e7b51 (patch) | |
tree | 51c50bcb67a5039448ddfa1869d7948cab1217e9 /arch/microblaze/include/asm/processor.h | |
parent | 19c1a6f5764d787113fa323ffb18be7991208f82 (diff) | |
parent | 091bf7624d1c90cec9e578a18529f615213ff847 (diff) |
Merge commit 'v2.6.30-rc5' into core/iommu
Merge reason: core/iommu was on an .30-rc1 base,
update it to .30-rc5 to refresh.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/microblaze/include/asm/processor.h')
-rw-r--r-- | arch/microblaze/include/asm/processor.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h new file mode 100644 index 00000000000..9329029d261 --- /dev/null +++ b/arch/microblaze/include/asm/processor.h @@ -0,0 +1,88 @@ +/* + * Copyright (C) 2008 Michal Simek + * Copyright (C) 2008 PetaLogix + * Copyright (C) 2006 Atmark Techno, Inc. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#ifndef _ASM_MICROBLAZE_PROCESSOR_H +#define _ASM_MICROBLAZE_PROCESSOR_H + +#include <asm/ptrace.h> +#include <asm/setup.h> +#include <asm/registers.h> +#include <asm/segment.h> +#include <asm/entry.h> +#include <asm/current.h> + +# ifndef __ASSEMBLY__ +/* from kernel/cpu/mb.c */ +extern const struct seq_operations cpuinfo_op; + +# define cpu_relax() barrier() +# define cpu_sleep() do {} while (0) +# define prepare_to_copy(tsk) do {} while (0) + +# endif /* __ASSEMBLY__ */ + +#define task_pt_regs(tsk) \ + (((struct pt_regs *)(THREAD_SIZE + task_stack_page(tsk))) - 1) + +/* Do necessary setup to start up a newly executed thread. */ +void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long usp); + +/* + * User space process size: memory size + * + * TASK_SIZE on MMU cpu is usually 1GB. However, on no-MMU arch, both + * user processes and the kernel is on the same memory region. They + * both share the memory space and that is limited by the amount of + * physical memory. thus, we set TASK_SIZE == amount of total memory. + */ +# define TASK_SIZE (0x81000000 - 0x80000000) + +/* + * Default implementation of macro that returns current + * instruction pointer ("program counter"). + */ +# define current_text_addr() ({ __label__ _l; _l: &&_l; }) + +/* + * This decides where the kernel will search for a free chunk of vm + * space during mmap's. We won't be using it + */ +# define TASK_UNMAPPED_BASE 0 + +/* definition in include/linux/sched.h */ +struct task_struct; + +/* thread_struct is gone. use thread_info instead. */ +struct thread_struct { }; +# define INIT_THREAD { } + +/* Free all resources held by a thread. */ +static inline void release_thread(struct task_struct *dead_task) +{ +} + +/* Free all resources held by a thread. */ +static inline void exit_thread(void) +{ +} + +extern unsigned long thread_saved_pc(struct task_struct *t); + +extern unsigned long get_wchan(struct task_struct *p); + +/* + * create a kernel thread without removing it from tasklists + */ +extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); + +# define KSTK_EIP(tsk) (0) +# define KSTK_ESP(tsk) (0) + +#endif /* _ASM_MICROBLAZE_PROCESSOR_H */ |