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author | Jesper Nilsson <jesper.nilsson@axis.com> | 2008-10-21 17:45:58 +0200 |
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committer | Jesper Nilsson <jesper.nilsson@axis.com> | 2008-10-29 17:29:44 +0100 |
commit | 556dcee7b829e5c350c3ffdbdb87a8b15aa3c5d3 (patch) | |
tree | 26485b0d92eedcba6c0c96d4069469041aaf7106 /arch/cris/include/asm/thread_info.h | |
parent | 242bfafc8e42da4697c1e2dea108049d14dbac4b (diff) | |
download | op-kernel-dev-556dcee7b829e5c350c3ffdbdb87a8b15aa3c5d3.zip op-kernel-dev-556dcee7b829e5c350c3ffdbdb87a8b15aa3c5d3.tar.gz |
[CRIS] Move header files from include to arch/cris/include.
Change all users of header files to correct path.
Remove some unneeded headers for arch-v32.
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Diffstat (limited to 'arch/cris/include/asm/thread_info.h')
-rw-r--r-- | arch/cris/include/asm/thread_info.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/arch/cris/include/asm/thread_info.h b/arch/cris/include/asm/thread_info.h new file mode 100644 index 0000000..bc5b293 --- /dev/null +++ b/arch/cris/include/asm/thread_info.h @@ -0,0 +1,106 @@ +/* thread_info.h: CRIS low-level thread information + * + * Copyright (C) 2002 David Howells (dhowells@redhat.com) + * - Incorporating suggestions made by Linus Torvalds and Dave Miller + * + * CRIS port by Axis Communications + */ + +#ifndef _ASM_THREAD_INFO_H +#define _ASM_THREAD_INFO_H + +#ifdef __KERNEL__ + +#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + +#ifndef __ASSEMBLY__ +#include <asm/types.h> +#include <asm/processor.h> +#include <arch/thread_info.h> +#include <asm/segment.h> +#endif + + +/* + * low level task data that entry.S needs immediate access to + * - this struct should fit entirely inside of one cache line + * - this struct shares the supervisor stack pages + * - if the contents of this structure are changed, the assembly constants must also be changed + */ +#ifndef __ASSEMBLY__ +struct thread_info { + struct task_struct *task; /* main task structure */ + struct exec_domain *exec_domain; /* execution domain */ + unsigned long flags; /* low level flags */ + __u32 cpu; /* current CPU */ + int preempt_count; /* 0 => preemptable, <0 => BUG */ + __u32 tls; /* TLS for this thread */ + + mm_segment_t addr_limit; /* thread address space: + 0-0xBFFFFFFF for user-thead + 0-0xFFFFFFFF for kernel-thread + */ + struct restart_block restart_block; + __u8 supervisor_stack[0]; +}; + +#endif + +#define PREEMPT_ACTIVE 0x10000000 + +/* + * macros/functions for gaining access to the thread information structure + * + * preempt_count needs to be 1 initially, until the scheduler is functional. + */ +#ifndef __ASSEMBLY__ +#define INIT_THREAD_INFO(tsk) \ +{ \ + .task = &tsk, \ + .exec_domain = &default_exec_domain, \ + .flags = 0, \ + .cpu = 0, \ + .preempt_count = 1, \ + .addr_limit = KERNEL_DS, \ + .restart_block = { \ + .fn = do_no_restart_syscall, \ + }, \ +} + +#define init_thread_info (init_thread_union.thread_info) + +/* thread information allocation */ +#define alloc_thread_info(tsk) ((struct thread_info *) __get_free_pages(GFP_KERNEL,1)) +#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) + +#endif /* !__ASSEMBLY__ */ + +/* + * thread information flags + * - these are process state flags that various assembly files may need to access + * - pending work-to-be-done flags are in LSW + * - other flags in MSW + */ +#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ +#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */ +#define TIF_SIGPENDING 2 /* signal pending */ +#define TIF_NEED_RESCHED 3 /* rescheduling necessary */ +#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */ +#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */ +#define TIF_MEMDIE 17 +#define TIF_FREEZE 18 /* is freezing for suspend */ + +#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) +#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) +#define _TIF_SIGPENDING (1<<TIF_SIGPENDING) +#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) +#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) +#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) +#define _TIF_FREEZE (1<<TIF_FREEZE) + +#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */ +#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */ + +#endif /* __KERNEL__ */ + +#endif /* _ASM_THREAD_INFO_H */ |