49 lines
916 B
C
49 lines
916 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_X86_CURRENT_H
|
|
#define _ASM_X86_CURRENT_H
|
|
|
|
#include <linux/compiler.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <linux/cache.h>
|
|
#include <asm/percpu.h>
|
|
|
|
struct task_struct;
|
|
|
|
struct pcpu_hot {
|
|
union {
|
|
struct {
|
|
struct task_struct *current_task;
|
|
int preempt_count;
|
|
int cpu_number;
|
|
#ifdef CONFIG_CALL_DEPTH_TRACKING
|
|
u64 call_depth;
|
|
#endif
|
|
unsigned long top_of_stack;
|
|
void *hardirq_stack_ptr;
|
|
u16 softirq_pending;
|
|
#ifdef CONFIG_X86_64
|
|
bool hardirq_stack_inuse;
|
|
#else
|
|
void *softirq_stack_ptr;
|
|
#endif
|
|
};
|
|
u8 pad[64];
|
|
};
|
|
};
|
|
static_assert(sizeof(struct pcpu_hot) == 64);
|
|
|
|
DECLARE_PER_CPU_ALIGNED(struct pcpu_hot, pcpu_hot);
|
|
|
|
static __always_inline struct task_struct *get_current(void)
|
|
{
|
|
return this_cpu_read_stable(pcpu_hot.current_task);
|
|
}
|
|
|
|
#define current get_current()
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* _ASM_X86_CURRENT_H */
|