Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : 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_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /lib/modules/5.4.0-198-generic/build/arch/arm64/include/asm/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Definitions specific to SMP platforms.
 *
 * Copyright (C) 2013 ARM Ltd.
 */

#ifndef __ASM_SMP_PLAT_H
#define __ASM_SMP_PLAT_H

#include <linux/cpumask.h>

#include <asm/types.h>

struct mpidr_hash {
	u64	mask;
	u32	shift_aff[4];
	u32	bits;
};

extern struct mpidr_hash mpidr_hash;

static inline u32 mpidr_hash_size(void)
{
	return 1 << mpidr_hash.bits;
}

/*
 * Retrieve logical cpu index corresponding to a given MPIDR.Aff*
 *  - mpidr: MPIDR.Aff* bits to be used for the look-up
 *
 * Returns the cpu logical index or -EINVAL on look-up error
 */
static inline int get_logical_index(u64 mpidr)
{
	int cpu;
	for (cpu = 0; cpu < nr_cpu_ids; cpu++)
		if (cpu_logical_map(cpu) == mpidr)
			return cpu;
	return -EINVAL;
}

#endif /* __ASM_SMP_PLAT_H */