| Server IP : 172.67.216.182 / Your IP : 162.158.190.81 Web Server : Apache System : Linux krdc-ubuntu-s-2vcpu-4gb-amd-blr1-01.localdomain 5.15.0-142-generic #152-Ubuntu SMP Mon May 19 10:54:31 UTC 2025 x86_64 User : www ( 1000) PHP Version : 7.4.33 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /usr/src/linux-headers-5.15.0-143/arch/nds32/include/asm/ |
Upload File : |
/* SPDX-License-Identifier: GPL-2.0 */
// Copyright (C) 2005-2017 Andes Technology Corporation
#ifndef __ASM_NDS32_MMU_CONTEXT_H
#define __ASM_NDS32_MMU_CONTEXT_H
#include <linux/spinlock.h>
#include <asm/tlbflush.h>
#include <asm/proc-fns.h>
#include <asm-generic/mm_hooks.h>
#define init_new_context init_new_context
static inline int
init_new_context(struct task_struct *tsk, struct mm_struct *mm)
{
mm->context.id = 0;
return 0;
}
#define CID_BITS 9
extern spinlock_t cid_lock;
extern unsigned int cpu_last_cid;
static inline void __new_context(struct mm_struct *mm)
{
unsigned int cid;
unsigned long flags;
spin_lock_irqsave(&cid_lock, flags);
cid = cpu_last_cid;
cpu_last_cid += 1 << TLB_MISC_offCID;
if (cpu_last_cid == 0)
cpu_last_cid = 1 << TLB_MISC_offCID << CID_BITS;
if ((cid & TLB_MISC_mskCID) == 0)
flush_tlb_all();
spin_unlock_irqrestore(&cid_lock, flags);
mm->context.id = cid;
}
static inline void check_context(struct mm_struct *mm)
{
if (unlikely
((mm->context.id ^ cpu_last_cid) >> TLB_MISC_offCID >> CID_BITS))
__new_context(mm);
}
static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
struct task_struct *tsk)
{
unsigned int cpu = smp_processor_id();
if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next)) || prev != next) {
check_context(next);
cpu_switch_mm(next);
}
}
#include <asm-generic/mmu_context.h>
#endif