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Diffstat (limited to 'include/asm-sh/thread_info.h')
| -rw-r--r-- | include/asm-sh/thread_info.h | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h deleted file mode 100644 index eeb4c74..0000000 --- a/include/asm-sh/thread_info.h +++ /dev/null @@ -1,141 +0,0 @@ -#ifndef __ASM_SH_THREAD_INFO_H -#define __ASM_SH_THREAD_INFO_H - -/* SuperH version - * Copyright (C) 2002 Niibe Yutaka - * - * The copyright of original i386 version is: - * - * Copyright (C) 2002 David Howells (dhowells@redhat.com) - * - Incorporating suggestions made by Linus Torvalds and Dave Miller - */ -#ifdef __KERNEL__ -#include <asm/page.h> - -#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; /* low level flags */ - __u32 cpu; - int preempt_count; /* 0 => preemptable, <0 => BUG */ - mm_segment_t addr_limit; /* thread address space */ - struct restart_block restart_block; - unsigned long previous_sp; /* sp of previous stack in case - of nested IRQ stacks */ - __u8 supervisor_stack[0]; -}; - -#endif - -#define PREEMPT_ACTIVE 0x10000000 - -#if defined(CONFIG_4KSTACKS) -#define THREAD_SIZE_ORDER (0) -#elif defined(CONFIG_PAGE_SIZE_4KB) -#define THREAD_SIZE_ORDER (1) -#elif defined(CONFIG_PAGE_SIZE_8KB) -#define THREAD_SIZE_ORDER (1) -#elif defined(CONFIG_PAGE_SIZE_16KB) -#define THREAD_SIZE_ORDER (0) -#elif defined(CONFIG_PAGE_SIZE_64KB) -#define THREAD_SIZE_ORDER (0) -#else -#error "Unknown thread size" -#endif - -#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) -#define STACK_WARN (THREAD_SIZE >> 3) - -/* - * macros/functions for gaining access to the thread information structure - */ -#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) -#define init_stack (init_thread_union.stack) - -/* how to get the current stack pointer from C */ -register unsigned long current_stack_pointer asm("r15") __used; - -/* how to get the thread information struct from C */ -static inline struct thread_info *current_thread_info(void) -{ - struct thread_info *ti; -#if defined(CONFIG_SUPERH64) - __asm__ __volatile__ ("getcon cr17, %0" : "=r" (ti)); -#elif defined(CONFIG_CPU_HAS_SR_RB) - __asm__ __volatile__ ("stc r7_bank, %0" : "=r" (ti)); -#else - unsigned long __dummy; - - __asm__ __volatile__ ( - "mov r15, %0\n\t" - "and %1, %0\n\t" - : "=&r" (ti), "=r" (__dummy) - : "1" (~(THREAD_SIZE - 1)) - : "memory"); -#endif - - return ti; -} - -#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR - -/* thread information allocation */ -#ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(ti) kzalloc(THREAD_SIZE, GFP_KERNEL) -#else -#define alloc_thread_info(ti) kmalloc(THREAD_SIZE, GFP_KERNEL) -#endif -#define free_thread_info(ti) kfree(ti) - -#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_SIGPENDING 1 /* signal pending */ -#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ -#define TIF_RESTORE_SIGMASK 3 /* restore signal mask in do_signal() */ -#define TIF_SINGLESTEP 4 /* singlestepping active */ -#define TIF_SYSCALL_AUDIT 5 -#define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */ -#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */ -#define TIF_MEMDIE 18 -#define TIF_FREEZE 19 - -#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) -#define _TIF_SIGPENDING (1<<TIF_SIGPENDING) -#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) -#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) -#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP) -#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) -#define _TIF_USEDFPU (1<<TIF_USEDFPU) -#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) -#define _TIF_FREEZE (1<<TIF_FREEZE) - -#define _TIF_WORK_MASK 0x000000FE /* work to do on interrupt/exception return */ -#define _TIF_ALLWORK_MASK 0x000000FF /* work to do on any return to u-space */ - -#endif /* __KERNEL__ */ - -#endif /* __ASM_SH_THREAD_INFO_H */ |
