diff options
Diffstat (limited to 'arch/tile/include/asm/thread_info.h')
| -rw-r--r-- | arch/tile/include/asm/thread_info.h | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/arch/tile/include/asm/thread_info.h b/arch/tile/include/asm/thread_info.h deleted file mode 100644 index 2adcacd85749..000000000000 --- a/arch/tile/include/asm/thread_info.h +++ /dev/null @@ -1,167 +0,0 @@ -/* - * Copyright (C) 2002 David Howells (dhowells@redhat.com) - * Copyright 2010 Tilera Corporation. All Rights Reserved. - * - * This program 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, version 2. - * - * This program 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, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for - * more details. - */ - -#ifndef _ASM_TILE_THREAD_INFO_H -#define _ASM_TILE_THREAD_INFO_H - -#include <asm/processor.h> -#include <asm/page.h> -#ifndef __ASSEMBLY__ - -/* - * Low level task data that assembly code needs immediate access to. - * The structure is placed at the bottom of the supervisor stack. - */ -struct thread_info { - struct task_struct *task; /* main task structure */ - unsigned long flags; /* low level flags */ - unsigned long status; /* thread-synchronous flags */ - __u32 homecache_cpu; /* CPU we are homecached on */ - __u32 cpu; /* current CPU */ - int preempt_count; /* 0 => preemptable, - <0 => BUG */ - - mm_segment_t addr_limit; /* thread address space - (KERNEL_DS or USER_DS) */ - struct single_step_state *step_state; /* single step state - (if non-zero) */ - int align_ctl; /* controls unaligned access */ -#ifdef __tilegx__ - unsigned long unalign_jit_tmp[4]; /* temp r0..r3 storage */ - void __user *unalign_jit_base; /* unalign fixup JIT base */ -#endif - bool in_backtrace; /* currently doing backtrace? */ -}; - -/* - * 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, \ - .step_state = NULL, \ - .align_ctl = 0, \ -} - -#endif /* !__ASSEMBLY__ */ - -#if PAGE_SIZE < 8192 -#define THREAD_SIZE_ORDER (13 - PAGE_SHIFT) -#else -#define THREAD_SIZE_ORDER (0) -#endif -#define THREAD_SIZE_PAGES (1 << THREAD_SIZE_ORDER) - -#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) -#define LOG2_THREAD_SIZE (PAGE_SHIFT + THREAD_SIZE_ORDER) - -#define STACK_WARN (THREAD_SIZE/8) - -#ifndef __ASSEMBLY__ - -void arch_release_thread_stack(unsigned long *stack); - -/* How to get the thread information struct from C. */ -register unsigned long stack_pointer __asm__("sp"); - -#define current_thread_info() \ - ((struct thread_info *)(stack_pointer & -THREAD_SIZE)) - -/* Sit on a nap instruction until interrupted. */ -extern void smp_nap(void); - -/* Enable interrupts racelessly and nap forever: helper for arch_cpu_idle(). */ -extern void _cpu_idle(void); - -#else /* __ASSEMBLY__ */ - -/* - * How to get the thread information struct from assembly. - * Note that we use different macros since different architectures - * have different semantics in their "mm" instruction and we would - * like to guarantee that the macro expands to exactly one instruction. - */ -#ifdef __tilegx__ -#define EXTRACT_THREAD_INFO(reg) mm reg, zero, LOG2_THREAD_SIZE, 63 -#else -#define GET_THREAD_INFO(reg) mm reg, sp, zero, LOG2_THREAD_SIZE, 31 -#endif - -#endif /* !__ASSEMBLY__ */ - -/* - * Thread information flags that various assembly files may need to access. - * Keep flags accessed frequently in low bits, particular since it makes - * it easier to build constants in assembly. - */ -#define TIF_SIGPENDING 0 /* signal pending */ -#define TIF_NEED_RESCHED 1 /* rescheduling necessary */ -#define TIF_SINGLESTEP 2 /* restore singlestep on return to - user mode */ -#define TIF_ASYNC_TLB 3 /* got an async TLB fault in kernel */ -#define TIF_SYSCALL_TRACE 4 /* syscall trace active */ -#define TIF_SYSCALL_AUDIT 5 /* syscall auditing active */ -#define TIF_SECCOMP 6 /* secure computing */ -#define TIF_MEMDIE 7 /* OOM killer at work */ -#define TIF_NOTIFY_RESUME 8 /* callback before returning to user */ -#define TIF_SYSCALL_TRACEPOINT 9 /* syscall tracepoint instrumentation */ -#define TIF_POLLING_NRFLAG 10 /* idle is polling for TIF_NEED_RESCHED */ -#define TIF_NOHZ 11 /* in adaptive nohz mode */ - -#define _TIF_SIGPENDING (1<<TIF_SIGPENDING) -#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) -#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP) -#define _TIF_ASYNC_TLB (1<<TIF_ASYNC_TLB) -#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) -#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) -#define _TIF_SECCOMP (1<<TIF_SECCOMP) -#define _TIF_MEMDIE (1<<TIF_MEMDIE) -#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) -#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) -#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) -#define _TIF_NOHZ (1<<TIF_NOHZ) - -/* Work to do as we loop to exit to user space. */ -#define _TIF_WORK_MASK \ - (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \ - _TIF_ASYNC_TLB | _TIF_NOTIFY_RESUME) - -/* Work to do on any return to user space. */ -#define _TIF_ALLWORK_MASK \ - (_TIF_WORK_MASK | _TIF_SINGLESTEP | _TIF_NOHZ) - -/* Work to do at syscall entry. */ -#define _TIF_SYSCALL_ENTRY_WORK \ - (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ) - -/* Work to do at syscall exit. */ -#define _TIF_SYSCALL_EXIT_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT) - -/* - * 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. - */ -#ifdef __tilegx__ -#define TS_COMPAT 0x0001 /* 32-bit compatibility mode */ -#endif - -#endif /* _ASM_TILE_THREAD_INFO_H */ |
