Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-alpha/thread_info.h b/include/asm-alpha/thread_info.h
new file mode 100644
index 0000000..d51491e
--- /dev/null
+++ b/include/asm-alpha/thread_info.h
@@ -0,0 +1,98 @@
+#ifndef _ALPHA_THREAD_INFO_H
+#define _ALPHA_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+#include <asm/processor.h>
+#include <asm/types.h>
+#include <asm/hwrpb.h>
+#endif
+
+#ifndef __ASSEMBLY__
+struct thread_info {
+ struct pcb_struct pcb; /* palcode state */
+
+ struct task_struct *task; /* main task structure */
+ unsigned int flags; /* low level flags */
+ unsigned int ieee_state; /* see fpu.h */
+
+ struct exec_domain *exec_domain; /* execution domain */
+ mm_segment_t addr_limit; /* thread address space */
+ unsigned cpu; /* current CPU */
+ int preempt_count; /* 0 => preemptable, <0 => BUG */
+
+ int bpt_nsaved;
+ unsigned long bpt_addr[2]; /* breakpoint handling */
+ unsigned int bpt_insn[2];
+
+ struct restart_block restart_block;
+};
+
+/*
+ * Macros/functions for gaining access to the thread information structure.
+ */
+#define INIT_THREAD_INFO(tsk) \
+{ \
+ .task = &tsk, \
+ .exec_domain = &default_exec_domain, \
+ .addr_limit = KERNEL_DS, \
+ .restart_block = { \
+ .fn = do_no_restart_syscall, \
+ }, \
+}
+
+#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. */
+register struct thread_info *__current_thread_info __asm__("$8");
+#define current_thread_info() __current_thread_info
+
+/* Thread information allocation. */
+#define THREAD_SIZE (2*PAGE_SIZE)
+#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)
+#define get_thread_info(ti) get_task_struct((ti)->task)
+#define put_thread_info(ti) put_task_struct((ti)->task)
+
+#endif /* __ASSEMBLY__ */
+
+#define PREEMPT_ACTIVE 0x40000000
+
+/*
+ * Thread information flags:
+ * - these are process state flags and used from assembly
+ * - pending work-to-be-done flags come first to fit in and immediate operand.
+ *
+ * TIF_SYSCALL_TRACE is known to be 0 via blbs.
+ */
+#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_POLLING_NRFLAG 4 /* poll_idle is polling NEED_RESCHED */
+#define TIF_DIE_IF_KERNEL 5 /* dik recursion lock */
+#define TIF_UAC_NOPRINT 6 /* see sysinfo.h */
+#define TIF_UAC_NOFIX 7
+#define TIF_UAC_SIGBUS 8
+#define TIF_MEMDIE 9
+
+#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_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
+
+/* Work to do on interrupt/exception return. */
+#define _TIF_WORK_MASK (_TIF_NOTIFY_RESUME \
+ | _TIF_SIGPENDING \
+ | _TIF_NEED_RESCHED)
+
+/* Work to do on any return to userspace. */
+#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK \
+ | _TIF_SYSCALL_TRACE)
+
+#endif /* __KERNEL__ */
+#endif /* _ALPHA_THREAD_INFO_H */
