+++ /dev/null
-/*
- * arch/ubicom32/include/asm/thread_info.h
- * Ubicom32 architecture low-level thread information.
- *
- * (C) Copyright 2009, Ubicom, Inc.
- * Adapted from the i386 and PPC versions by Greg Ungerer (gerg@snapgear.com)
- * Copyright (C) 2002 David Howells (dhowells@redhat.com)
- * - Incorporating suggestions made by Linus Torvalds and Dave Miller
- *
- * This file is part of the Ubicom32 Linux Kernel Port.
- *
- * The Ubicom32 Linux Kernel Port is free software: you can redistribute
- * it and/or modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 2 of the
- * License, or (at your option) any later version.
- *
- * The Ubicom32 Linux Kernel Port is distributed in the hope that it
- * will be useful, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with the Ubicom32 Linux Kernel Port. If not,
- * see <http://www.gnu.org/licenses/>.
- *
- * Ubicom32 implementation derived from (with many thanks):
- * arch/m68knommu
- * arch/blackfin
- * arch/parisc
- */
-
-#ifndef _ASM_UBICOM32_THREAD_INFO_H
-#define _ASM_UBICOM32_THREAD_INFO_H
-
-#include <asm/page.h>
-
-/*
- * Size of kernel stack for each process. This must be a power of 2...
- */
-#ifdef CONFIG_4KSTACKS
-#define THREAD_SIZE_ORDER (0)
-#else
-#define THREAD_SIZE_ORDER (1)
-#endif
-
-/*
- * for asm files, THREAD_SIZE is now generated by asm-offsets.c
- */
-#define THREAD_SIZE (PAGE_SIZE<<THREAD_SIZE_ORDER)
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-/*
- * low level task data.
- */
-struct thread_info {
- struct task_struct *task; /* main task structure */
- struct exec_domain *exec_domain; /* execution domain */
- unsigned long flags; /* low level flags */
- int cpu; /* cpu we're on */
- int preempt_count; /* 0 => preemptable, <0 => BUG */
- int interrupt_nesting; /* Interrupt nesting level. */
- 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, \
- .flags = 0, \
- .cpu = 0, \
- .interrupt_nesting = 0, \
- .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 */
-static inline struct thread_info *current_thread_info(void)
-{
- struct thread_info *ti;
-
- asm (
- "and.4 %0, sp, %1\n\t"
- : "=&r" (ti)
- : "d" (~(THREAD_SIZE-1))
- : "cc"
- );
-
- return ti;
-}
-
-#define STACK_WARN (THREAD_SIZE / 8)
-
-#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR 1
-
-/* thread information allocation */
-#define alloc_thread_info(tsk) ((struct thread_info *) \
- __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER))
-#define free_thread_info(ti) free_pages((unsigned long) (ti), THREAD_SIZE_ORDER)
-#endif /* __ASSEMBLY__ */
-
-#define PREEMPT_ACTIVE 0x4000000
-
-/*
- * thread information flag bit numbers
- */
-#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_MEMDIE 4
-
-/* as above, but as bit values */
-#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_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_UBICOM32_THREAD_INFO_H */
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