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authorLen Brown <len.brown@intel.com>2008-10-22 23:57:26 -0400
committerLen Brown <len.brown@intel.com>2008-10-23 00:11:07 -0400
commit057316cc6a5b521b332a1d7ccc871cd60c904c74 (patch)
tree4333e608da237c73ff69b10878025cca96dcb4c8 /arch/parisc/include/asm/thread_info.h
parent3e2dab9a1c2deb03c311eb3f83466009147ed4d3 (diff)
parent2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff)
Merge branch 'linus' into test
Conflicts: MAINTAINERS arch/x86/kernel/acpi/boot.c arch/x86/kernel/acpi/sleep.c drivers/acpi/Kconfig drivers/pnp/Makefile drivers/pnp/quirks.c Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch/parisc/include/asm/thread_info.h')
-rw-r--r--arch/parisc/include/asm/thread_info.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
new file mode 100644
index 00000000000..0407959da48
--- /dev/null
+++ b/arch/parisc/include/asm/thread_info.h
@@ -0,0 +1,76 @@
+#ifndef _ASM_PARISC_THREAD_INFO_H
+#define _ASM_PARISC_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+#include <asm/processor.h>
+
+struct thread_info {
+ struct task_struct *task; /* main task structure */
+ struct exec_domain *exec_domain;/* execution domain */
+ unsigned long flags; /* thread_info flags (see TIF_*) */
+ mm_segment_t addr_limit; /* user-level address space limit */
+ __u32 cpu; /* current CPU */
+ int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */
+ struct restart_block restart_block;
+};
+
+#define INIT_THREAD_INFO(tsk) \
+{ \
+ .task = &tsk, \
+ .exec_domain = &default_exec_domain, \
+ .flags = 0, \
+ .cpu = 0, \
+ .addr_limit = KERNEL_DS, \
+ .preempt_count = 1, \
+ .restart_block = { \
+ .fn = do_no_restart_syscall \
+ } \
+}
+
+#define init_thread_info (init_thread_union.thread_info)
+#define init_stack (init_thread_union.stack)
+
+/* thread information allocation */
+
+#define THREAD_SIZE_ORDER 2
+/* Be sure to hunt all references to this down when you change the size of
+ * the kernel stack */
+#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
+#define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER)
+
+/* how to get the thread information struct from C */
+#define current_thread_info() ((struct thread_info *)mfctl(30))
+
+#endif /* !__ASSEMBLY */
+
+#define PREEMPT_ACTIVE_BIT 28
+#define PREEMPT_ACTIVE (1 << PREEMPT_ACTIVE_BIT)
+
+/*
+ * thread information flags
+ */
+#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
+#define TIF_SIGPENDING 1 /* signal pending */
+#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
+#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */
+#define TIF_32BIT 4 /* 32 bit binary */
+#define TIF_MEMDIE 5
+#define TIF_RESTORE_SIGMASK 6 /* restore saved signal mask */
+#define TIF_FREEZE 7 /* is freezing for suspend */
+
+#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
+#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
+#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
+#define _TIF_32BIT (1 << TIF_32BIT)
+#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
+#define _TIF_FREEZE (1 << TIF_FREEZE)
+
+#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | \
+ _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_PARISC_THREAD_INFO_H */