/* * 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_THREAD_INFO_H #define _ASM_MICROBLAZE_THREAD_INFO_H #ifdef __KERNEL__ /* we have 8k stack */ #define THREAD_SHIFT 13 #define THREAD_SIZE (1 << THREAD_SHIFT) #define THREAD_SIZE_ORDER 1 #ifndef __ASSEMBLY__ # include <linux/types.h> # include <asm/processor.h> /* * 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 */ struct cpu_context { __u32 r1; /* stack pointer */ __u32 r2; /* dedicated registers */ __u32 r13; __u32 r14; __u32 r15; __u32 r16; __u32 r17; __u32 r18; /* non-volatile registers */ __u32 r19; __u32 r20; __u32 r21; __u32 r22; __u32 r23; __u32 r24; __u32 r25; __u32 r26; __u32 r27; __u32 r28; __u32 r29; __u32 r30; /* r31 is used as current task pointer */ /* special purpose registers */ __u32 msr; __u32 ear; __u32 esr; __u32 fsr; }; typedef struct { unsigned long seg; } mm_segment_t; struct thread_info { struct task_struct *task; /* main task structure */ unsigned long flags; /* low level flags */ unsigned long status; /* thread-synchronous flags */ __u32 cpu; /* current CPU */ __s32 preempt_count; /* 0 => preemptable,< 0 => BUG*/ mm_segment_t addr_limit; /* thread address space */ struct cpu_context cpu_context; }; /* * macros/functions for gaining access to the thread information structure */ #define INIT_THREAD_INFO(tsk) \ { \ .task = &tsk, \ .flags = 0, \ .cpu = 0, \ .preempt_count = INIT_PREEMPT_COUNT, \ .addr_limit = KERNEL_DS, \ } #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) /* how to get the thread information struct from C */ static inline struct thread_info *current_thread_info(void) { register unsigned long sp asm("r1"); return (struct thread_info *)(sp & ~(THREAD_SIZE-1)); } /* thread information allocation */ #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 */ /* restore singlestep on return to user mode */ #define TIF_SINGLESTEP 4 #define TIF_MEMDIE 6 /* is terminating due to OOM killer */ #define TIF_SYSCALL_AUDIT 9 /* syscall auditing active */ #define TIF_SECCOMP 10 /* secure computing */ /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_POLLING_NRFLAG 16 #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_SINGLESTEP (1 << TIF_SINGLESTEP) #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) #define _TIF_SECCOMP (1 << TIF_SECCOMP) /* work to do in syscall trace */ #define _TIF_WORK_SYSCALL_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \ _TIF_SYSCALL_AUDIT | _TIF_SECCOMP) /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK 0x0000FFFE /* work to do on any return to u-space */ #define _TIF_ALLWORK_MASK 0x0000FFFF /* * Thread-synchronous status. * * This is different from the flags in that nobody else * ever touches our thread-synchronous status, so we don't * have to worry about atomic accesses. */ /* FPU was used by this task this quantum (SMP) */ #define TS_USEDFPU 0x0001 #endif /* __KERNEL__ */ #endif /* _ASM_MICROBLAZE_THREAD_INFO_H */
Name | Type | Size | Permission | Actions |
---|---|---|---|---|
Kbuild | File | 742 B | 0644 |
|
asm-compat.h | File | 518 B | 0644 |
|
asm-offsets.h | File | 35 B | 0644 |
|
atomic.h | File | 626 B | 0644 |
|
cache.h | File | 644 B | 0644 |
|
cacheflush.h | File | 4.12 KB | 0644 |
|
checksum.h | File | 942 B | 0644 |
|
cmpxchg.h | File | 919 B | 0644 |
|
cpuinfo.h | File | 2.13 KB | 0644 |
|
cputable.h | File | 1 B | 0644 |
|
current.h | File | 850 B | 0644 |
|
delay.h | File | 2.26 KB | 0644 |
|
dma-mapping.h | File | 765 B | 0644 |
|
dma.h | File | 706 B | 0644 |
|
elf.h | File | 738 B | 0644 |
|
entry.h | File | 1.13 KB | 0644 |
|
exceptions.h | File | 2.08 KB | 0644 |
|
fixmap.h | File | 1.96 KB | 0644 |
|
flat.h | File | 2.26 KB | 0644 |
|
ftrace.h | File | 641 B | 0644 |
|
futex.h | File | 2.13 KB | 0644 |
|
hash.h | File | 2.37 KB | 0644 |
|
highmem.h | File | 2.2 KB | 0644 |
|
hw_irq.h | File | 1 B | 0644 |
|
io.h | File | 2.05 KB | 0644 |
|
irq.h | File | 538 B | 0644 |
|
irqflags.h | File | 2.6 KB | 0644 |
|
kgdb.h | File | 739 B | 0644 |
|
mmu.h | File | 4.19 KB | 0644 |
|
mmu_context.h | File | 141 B | 0644 |
|
mmu_context_mm.h | File | 3.91 KB | 0644 |
|
module.h | File | 840 B | 0644 |
|
page.h | File | 6.11 KB | 0644 |
|
pci-bridge.h | File | 4.57 KB | 0644 |
|
pci.h | File | 2.47 KB | 0644 |
|
pgalloc.h | File | 4.74 KB | 0644 |
|
pgtable.h | File | 17.66 KB | 0644 |
|
processor.h | File | 4.11 KB | 0644 |
|
prom.h | File | 713 B | 0644 |
|
ptrace.h | File | 727 B | 0644 |
|
pvr.h | File | 8.72 KB | 0644 |
|
registers.h | File | 1.65 KB | 0644 |
|
seccomp.h | File | 256 B | 0644 |
|
sections.h | File | 637 B | 0644 |
|
setup.h | File | 1.37 KB | 0644 |
|
string.h | File | 630 B | 0644 |
|
switch_to.h | File | 629 B | 0644 |
|
syscall.h | File | 2.26 KB | 0644 |
|
thread_info.h | File | 4.01 KB | 0644 |
|
timex.h | File | 402 B | 0644 |
|
tlb.h | File | 714 B | 0644 |
|
tlbflush.h | File | 2.04 KB | 0644 |
|
uaccess.h | File | 9.98 KB | 0644 |
|
unaligned.h | File | 871 B | 0644 |
|
unistd.h | File | 1.19 KB | 0644 |
|
unwind.h | File | 719 B | 0644 |
|
user.h | File | 1 B | 0644 |
|