/* SPDX-License-Identifier: GPL-2.0 */ #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> /* * Page fault error code bits */ #define FAULT_CODE_WRITE (1 << 0) /* write access */ #define FAULT_CODE_INITIAL (1 << 1) /* initial page write */ #define FAULT_CODE_ITLB (1 << 2) /* ITLB miss */ #define FAULT_CODE_PROT (1 << 3) /* protection fault */ #define FAULT_CODE_USER (1 << 4) /* user-mode access */ #ifndef __ASSEMBLY__ #include <asm/processor.h> struct thread_info { struct task_struct *task; /* main task structure */ unsigned long flags; /* low level flags */ __u32 status; /* thread synchronous flags */ __u32 cpu; int preempt_count; /* 0 => preemptable, <0 => BUG */ mm_segment_t addr_limit; /* thread address space */ unsigned long previous_sp; /* sp of previous stack in case of nested IRQ stacks */ __u8 supervisor_stack[0]; }; #endif #if defined(CONFIG_4KSTACKS) #define THREAD_SHIFT 12 #else #define THREAD_SHIFT 13 #endif #define THREAD_SIZE (1 << THREAD_SHIFT) #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, \ .flags = 0, \ .status = 0, \ .cpu = 0, \ .preempt_count = INIT_PREEMPT_COUNT, \ .addr_limit = KERNEL_DS, \ } #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 THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT) extern void arch_task_cache_init(void); extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); extern void arch_release_task_struct(struct task_struct *tsk); extern void init_thread_xstate(void); #endif /* __ASSEMBLY__ */ /* * Thread information flags * * - Limited to 24 bits, upper byte used for fault code encoding. * * - _TIF_ALLWORK_MASK and _TIF_WORK_MASK need to fit within 2 bytes, or * we blow the tst immediate size constraints and need to fix up * arch/sh/kernel/entry-common.S. */ #define TIF_SYSCALL_TRACE 0 /* syscall trace active */ #define TIF_SIGPENDING 1 /* signal pending */ #define TIF_NEED_RESCHED 2 /* rescheduling necessary */ #define TIF_SINGLESTEP 4 /* singlestepping active */ #define TIF_SYSCALL_AUDIT 5 /* syscall auditing active */ #define TIF_SECCOMP 6 /* secure computing */ #define TIF_NOTIFY_RESUME 7 /* callback before returning to user */ #define TIF_SYSCALL_TRACEPOINT 8 /* for ftrace syscall instrumentation */ #define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_MEMDIE 18 /* is terminating due to OOM killer */ #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) #define _TIF_SECCOMP (1 << TIF_SECCOMP) #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) /* work to do in syscall trace */ #define _TIF_WORK_SYSCALL_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \ _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | \ _TIF_SYSCALL_TRACEPOINT) /* work to do on any return to u-space */ #define _TIF_ALLWORK_MASK (_TIF_SYSCALL_TRACE | _TIF_SIGPENDING | \ _TIF_NEED_RESCHED | _TIF_SYSCALL_AUDIT | \ _TIF_SINGLESTEP | _TIF_NOTIFY_RESUME | \ _TIF_SYSCALL_TRACEPOINT) /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK (_TIF_ALLWORK_MASK & ~(_TIF_SYSCALL_TRACE | \ _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP)) /* * 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. */ #define TS_USEDFPU 0x0002 /* FPU used by this task this quantum */ #ifndef __ASSEMBLY__ #define TI_FLAG_FAULT_CODE_SHIFT 24 /* * Additional thread flag encoding */ static inline void set_thread_fault_code(unsigned int val) { struct thread_info *ti = current_thread_info(); ti->flags = (ti->flags & (~0 >> (32 - TI_FLAG_FAULT_CODE_SHIFT))) | (val << TI_FLAG_FAULT_CODE_SHIFT); } static inline unsigned int get_thread_fault_code(void) { struct thread_info *ti = current_thread_info(); return ti->flags >> TI_FLAG_FAULT_CODE_SHIFT; } #endif /* !__ASSEMBLY__ */ #endif /* __KERNEL__ */ #endif /* __ASM_SH_THREAD_INFO_H */
Name | Type | Size | Permission | Actions |
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Kbuild | File | 467 B | 0644 |
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adc.h | File | 253 B | 0644 |
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addrspace.h | File | 2.03 KB | 0644 |
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alignment.h | File | 654 B | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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atomic-grb.h | File | 2.6 KB | 0644 |
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atomic-irq.h | File | 1.63 KB | 0644 |
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atomic-llsc.h | File | 2.12 KB | 0644 |
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atomic.h | File | 1.78 KB | 0644 |
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barrier.h | File | 1.52 KB | 0644 |
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bitops-cas.h | File | 1.73 KB | 0644 |
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bitops-grb.h | File | 6.21 KB | 0644 |
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bitops-llsc.h | File | 2.79 KB | 0644 |
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bitops-op32.h | File | 3.78 KB | 0644 |
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bitops.h | File | 2.38 KB | 0644 |
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bl_bit.h | File | 216 B | 0644 |
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bl_bit_32.h | File | 639 B | 0644 |
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bl_bit_64.h | File | 979 B | 0644 |
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bug.h | File | 2.77 KB | 0644 |
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bugs.h | File | 1.38 KB | 0644 |
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cache.h | File | 1.2 KB | 0644 |
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cache_insns.h | File | 242 B | 0644 |
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cache_insns_32.h | File | 642 B | 0644 |
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cache_insns_64.h | File | 839 B | 0644 |
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cacheflush.h | File | 3.58 KB | 0644 |
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checksum.h | File | 140 B | 0644 |
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checksum_32.h | File | 5.21 KB | 0644 |
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clock.h | File | 436 B | 0644 |
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cmpxchg-cas.h | File | 549 B | 0644 |
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cmpxchg-grb.h | File | 2.8 KB | 0644 |
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cmpxchg-irq.h | File | 1.04 KB | 0644 |
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cmpxchg-llsc.h | File | 1.06 KB | 0644 |
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cmpxchg-xchg.h | File | 1.33 KB | 0644 |
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cmpxchg.h | File | 1.77 KB | 0644 |
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device.h | File | 450 B | 0644 |
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dma-mapping.h | File | 694 B | 0644 |
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dma-register.h | File | 1.8 KB | 0644 |
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dma.h | File | 3.74 KB | 0644 |
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dmabrg.h | File | 536 B | 0644 |
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dwarf.h | File | 9.8 KB | 0644 |
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elf.h | File | 7.28 KB | 0644 |
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entry-macros.S | File | 1.85 KB | 0644 |
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extable.h | File | 227 B | 0644 |
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fb.h | File | 375 B | 0644 |
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fixmap.h | File | 2.92 KB | 0644 |
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flat.h | File | 1.23 KB | 0644 |
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fpu.h | File | 1.77 KB | 0644 |
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freq.h | File | 472 B | 0644 |
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ftrace.h | File | 1.11 KB | 0644 |
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futex-cas.h | File | 728 B | 0644 |
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futex-irq.h | File | 482 B | 0644 |
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futex-llsc.h | File | 870 B | 0644 |
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futex.h | File | 1.5 KB | 0644 |
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gpio.h | File | 1017 B | 0644 |
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hardirq.h | File | 440 B | 0644 |
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hd64461.h | File | 11.79 KB | 0644 |
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heartbeat.h | File | 383 B | 0644 |
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hugetlb.h | File | 1.96 KB | 0644 |
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hw_breakpoint.h | File | 1.88 KB | 0644 |
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hw_irq.h | File | 915 B | 0644 |
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i2c-sh7760.h | File | 406 B | 0644 |
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io.h | File | 11.33 KB | 0644 |
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io_generic.h | File | 661 B | 0644 |
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io_noioport.h | File | 1.09 KB | 0644 |
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io_trapped.h | File | 1.44 KB | 0644 |
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irq.h | File | 1.68 KB | 0644 |
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irqflags.h | File | 226 B | 0644 |
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kdebug.h | File | 406 B | 0644 |
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kexec.h | File | 2.61 KB | 0644 |
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kgdb.h | File | 851 B | 0644 |
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kmap_types.h | File | 265 B | 0644 |
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kprobes.h | File | 1.51 KB | 0644 |
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linkage.h | File | 154 B | 0644 |
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machvec.h | File | 939 B | 0644 |
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mmu.h | File | 2.18 KB | 0644 |
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mmu_context.h | File | 4.44 KB | 0644 |
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mmu_context_32.h | File | 1.28 KB | 0644 |
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mmu_context_64.h | File | 1.97 KB | 0644 |
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mmzone.h | File | 1.1 KB | 0644 |
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module.h | File | 1005 B | 0644 |
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page.h | File | 6.06 KB | 0644 |
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pci.h | File | 3.19 KB | 0644 |
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perf_event.h | File | 797 B | 0644 |
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pgalloc.h | File | 1.86 KB | 0644 |
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pgtable-2level.h | File | 598 B | 0644 |
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pgtable-3level.h | File | 1.54 KB | 0644 |
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pgtable.h | File | 4 KB | 0644 |
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pgtable_32.h | File | 16.37 KB | 0644 |
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pgtable_64.h | File | 11.32 KB | 0644 |
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posix_types.h | File | 146 B | 0644 |
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processor.h | File | 4.41 KB | 0644 |
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processor_32.h | File | 4.67 KB | 0644 |
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processor_64.h | File | 5.54 KB | 0644 |
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ptrace.h | File | 3.39 KB | 0644 |
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ptrace_32.h | File | 307 B | 0644 |
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ptrace_64.h | File | 312 B | 0644 |
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push-switch.h | File | 755 B | 0644 |
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reboot.h | File | 472 B | 0644 |
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romimage-macros.h | File | 1.1 KB | 0644 |
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rtc.h | File | 383 B | 0644 |
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seccomp.h | File | 280 B | 0644 |
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sections.h | File | 311 B | 0644 |
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segment.h | File | 879 B | 0644 |
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setup.h | File | 725 B | 0644 |
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sfp-machine.h | File | 3.43 KB | 0644 |
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sh7760fb.h | File | 5.61 KB | 0644 |
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sh_bios.h | File | 743 B | 0644 |
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shmparam.h | File | 629 B | 0644 |
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siu.h | File | 539 B | 0644 |
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smc37c93x.h | File | 5.56 KB | 0644 |
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smp-ops.h | File | 1012 B | 0644 |
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smp.h | File | 1.83 KB | 0644 |
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sparsemem.h | File | 443 B | 0644 |
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spi.h | File | 265 B | 0644 |
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spinlock-cas.h | File | 2.09 KB | 0644 |
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spinlock-llsc.h | File | 4.13 KB | 0644 |
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spinlock.h | File | 578 B | 0644 |
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spinlock_types.h | File | 463 B | 0644 |
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sram.h | File | 670 B | 0644 |
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stackprotector.h | File | 711 B | 0644 |
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stacktrace.h | File | 606 B | 0644 |
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string.h | File | 131 B | 0644 |
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string_32.h | File | 2.66 KB | 0644 |
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string_64.h | File | 499 B | 0644 |
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suspend.h | File | 2.52 KB | 0644 |
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switch_to.h | File | 492 B | 0644 |
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switch_to_32.h | File | 3.55 KB | 0644 |
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switch_to_64.h | File | 968 B | 0644 |
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syscall.h | File | 267 B | 0644 |
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syscall_32.h | File | 2.42 KB | 0644 |
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syscall_64.h | File | 1.79 KB | 0644 |
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syscalls.h | File | 564 B | 0644 |
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syscalls_32.h | File | 1022 B | 0644 |
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syscalls_64.h | File | 441 B | 0644 |
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thread_info.h | File | 5.32 KB | 0644 |
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timex.h | File | 637 B | 0644 |
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tlb.h | File | 4.12 KB | 0644 |
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tlb_64.h | File | 2.08 KB | 0644 |
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tlbflush.h | File | 1.77 KB | 0644 |
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topology.h | File | 645 B | 0644 |
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traps.h | File | 487 B | 0644 |
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traps_32.h | File | 1.31 KB | 0644 |
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traps_64.h | File | 851 B | 0644 |
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types.h | File | 411 B | 0644 |
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uaccess.h | File | 4.83 KB | 0644 |
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uaccess_32.h | File | 3.77 KB | 0644 |
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uaccess_64.h | File | 2.2 KB | 0644 |
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unaligned-sh4a.h | File | 4.51 KB | 0644 |
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unaligned.h | File | 359 B | 0644 |
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uncached.h | File | 1.34 KB | 0644 |
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unistd.h | File | 952 B | 0644 |
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unwinder.h | File | 856 B | 0644 |
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user.h | File | 2.52 KB | 0644 |
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vga.h | File | 98 B | 0644 |
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vmlinux.lds.h | File | 558 B | 0644 |
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watchdog.h | File | 4.14 KB | 0644 |
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word-at-a-time.h | File | 1.29 KB | 0644 |
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