baa96377bc
Fix GCC warnings reported when building with "-Wmissing-prototypes":
arch/arm64/kernel/process.c:261:6: warning: no previous prototype for '__show_regs' [-Wmissing-prototypes]
261 | void __show_regs(struct pt_regs *regs)
| ^~~~~~~~~~~
arch/arm64/kernel/process.c:307:6: warning: no previous prototype for '__show_regs_alloc_free' [-Wmissing-prototypes]
307 | void __show_regs_alloc_free(struct pt_regs *regs)
| ^~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/process.c:365:5: warning: no previous prototype for 'arch_dup_task_struct' [-Wmissing-prototypes]
365 | int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
| ^~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/process.c:546:41: warning: no previous prototype for '__switch_to' [-Wmissing-prototypes]
546 | __notrace_funcgraph struct task_struct *__switch_to(struct task_struct *prev,
| ^~~~~~~~~~~
arch/arm64/kernel/process.c:710:25: warning: no previous prototype for 'arm64_preempt_schedule_irq' [-Wmissing-prototypes]
710 | asmlinkage void __sched arm64_preempt_schedule_irq(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
Link: https://lore.kernel.org/lkml/202103192250.AennsfXM-lkp@intel.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Link: https://lore.kernel.org/r/1616568899-986-1-git-send-email-maninder1.s@samsung.com
Signed-off-by: Will Deacon <will@kernel.org>
126 lines
3.8 KiB
C
126 lines
3.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Based on arch/arm/include/asm/thread_info.h
|
|
*
|
|
* Copyright (C) 2002 Russell King.
|
|
* Copyright (C) 2012 ARM Ltd.
|
|
*/
|
|
#ifndef __ASM_THREAD_INFO_H
|
|
#define __ASM_THREAD_INFO_H
|
|
|
|
#include <linux/compiler.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
struct task_struct;
|
|
|
|
#include <asm/memory.h>
|
|
#include <asm/stack_pointer.h>
|
|
#include <asm/types.h>
|
|
|
|
/*
|
|
* low level task data that entry.S needs immediate access to.
|
|
*/
|
|
struct thread_info {
|
|
unsigned long flags; /* low level flags */
|
|
#ifdef CONFIG_ARM64_SW_TTBR0_PAN
|
|
u64 ttbr0; /* saved TTBR0_EL1 */
|
|
#endif
|
|
union {
|
|
u64 preempt_count; /* 0 => preemptible, <0 => bug */
|
|
struct {
|
|
#ifdef CONFIG_CPU_BIG_ENDIAN
|
|
u32 need_resched;
|
|
u32 count;
|
|
#else
|
|
u32 count;
|
|
u32 need_resched;
|
|
#endif
|
|
} preempt;
|
|
};
|
|
#ifdef CONFIG_SHADOW_CALL_STACK
|
|
void *scs_base;
|
|
void *scs_sp;
|
|
#endif
|
|
};
|
|
|
|
#define thread_saved_pc(tsk) \
|
|
((unsigned long)(tsk->thread.cpu_context.pc))
|
|
#define thread_saved_sp(tsk) \
|
|
((unsigned long)(tsk->thread.cpu_context.sp))
|
|
#define thread_saved_fp(tsk) \
|
|
((unsigned long)(tsk->thread.cpu_context.fp))
|
|
|
|
void arch_setup_new_exec(void);
|
|
#define arch_setup_new_exec arch_setup_new_exec
|
|
|
|
void arch_release_task_struct(struct task_struct *tsk);
|
|
int arch_dup_task_struct(struct task_struct *dst,
|
|
struct task_struct *src);
|
|
|
|
#endif
|
|
|
|
#define TIF_SIGPENDING 0 /* signal pending */
|
|
#define TIF_NEED_RESCHED 1 /* rescheduling necessary */
|
|
#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
|
|
#define TIF_FOREIGN_FPSTATE 3 /* CPU's FP state is not current's */
|
|
#define TIF_UPROBE 4 /* uprobe breakpoint or singlestep */
|
|
#define TIF_MTE_ASYNC_FAULT 5 /* MTE Asynchronous Tag Check Fault */
|
|
#define TIF_NOTIFY_SIGNAL 6 /* signal notifications exist */
|
|
#define TIF_SYSCALL_TRACE 8 /* syscall trace active */
|
|
#define TIF_SYSCALL_AUDIT 9 /* syscall auditing */
|
|
#define TIF_SYSCALL_TRACEPOINT 10 /* syscall tracepoint for ftrace */
|
|
#define TIF_SECCOMP 11 /* syscall secure computing */
|
|
#define TIF_SYSCALL_EMU 12 /* syscall emulation active */
|
|
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
|
|
#define TIF_FREEZE 19
|
|
#define TIF_RESTORE_SIGMASK 20
|
|
#define TIF_SINGLESTEP 21
|
|
#define TIF_32BIT 22 /* 32bit process */
|
|
#define TIF_SVE 23 /* Scalable Vector Extension in use */
|
|
#define TIF_SVE_VL_INHERIT 24 /* Inherit sve_vl_onexec across exec */
|
|
#define TIF_SSBD 25 /* Wants SSB mitigation */
|
|
#define TIF_TAGGED_ADDR 26 /* Allow tagged user addresses */
|
|
|
|
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
|
|
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
|
|
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
|
|
#define _TIF_FOREIGN_FPSTATE (1 << TIF_FOREIGN_FPSTATE)
|
|
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
|
|
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
|
|
#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
|
|
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
|
|
#define _TIF_SYSCALL_EMU (1 << TIF_SYSCALL_EMU)
|
|
#define _TIF_UPROBE (1 << TIF_UPROBE)
|
|
#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
|
|
#define _TIF_32BIT (1 << TIF_32BIT)
|
|
#define _TIF_SVE (1 << TIF_SVE)
|
|
#define _TIF_MTE_ASYNC_FAULT (1 << TIF_MTE_ASYNC_FAULT)
|
|
#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
|
|
|
|
#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
|
|
_TIF_NOTIFY_RESUME | _TIF_FOREIGN_FPSTATE | \
|
|
_TIF_UPROBE | _TIF_MTE_ASYNC_FAULT | \
|
|
_TIF_NOTIFY_SIGNAL)
|
|
|
|
#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
|
|
_TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | \
|
|
_TIF_SYSCALL_EMU)
|
|
|
|
#ifdef CONFIG_SHADOW_CALL_STACK
|
|
#define INIT_SCS \
|
|
.scs_base = init_shadow_call_stack, \
|
|
.scs_sp = init_shadow_call_stack,
|
|
#else
|
|
#define INIT_SCS
|
|
#endif
|
|
|
|
#define INIT_THREAD_INFO(tsk) \
|
|
{ \
|
|
.flags = _TIF_FOREIGN_FPSTATE, \
|
|
.preempt_count = INIT_PREEMPT_COUNT, \
|
|
INIT_SCS \
|
|
}
|
|
|
|
#endif /* __ASM_THREAD_INFO_H */
|