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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2000-2009
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
* Copyright 2019 Google LLC
*/
#ifndef __CPU_LEGACY_H
#define __CPU_LEGACY_H
#include <linux/types.h>
/*
* Multicore arch functions
*
* These should be moved to use the CPU uclass.
*/
int cpu_status(u32 nr);
int cpu_reset(u32 nr);
int cpu_disable(u32 nr);
int cpu_release(u32 nr, int argc, char *const argv[]);
static inline int cpumask_next(int cpu, unsigned int mask)
{
for (cpu++; !((1 << cpu) & mask); cpu++)
;
return cpu;
}
#define for_each_cpu(iter, cpu, num_cpus, mask) \
for (iter = 0, cpu = cpumask_next(-1, mask); \
iter < num_cpus; \
iter++, cpu = cpumask_next(cpu, mask)) \
int cpu_numcores(void);
int cpu_num_dspcores(void);
u32 cpu_mask(void);
u32 cpu_dsp_mask(void);
int is_core_valid(unsigned int core);
/**
* checkcpu() - perform an early check of the CPU
*
* This is used on PowerPC, SH and X86 machines as a CPU init mechanism. It is
* called during the pre-relocation init sequence in board_init_f().
*
* @return 0 if oK, -ve on error
*/
int checkcpu(void);
void smp_set_core_boot_addr(unsigned long addr, int corenr);
void smp_kick_all_cpus(void);
int icache_status(void);
void icache_enable(void);
void icache_disable(void);
int dcache_status(void);
void dcache_enable(void);
void dcache_disable(void);
void mmu_disable(void);
/* arch/$(ARCH)/lib/cache.c */
void enable_caches(void);
void flush_cache(unsigned long addr, unsigned long size);
void flush_dcache_all(void);
void flush_dcache_range(unsigned long start, unsigned long stop);
void invalidate_dcache_range(unsigned long start, unsigned long stop);
void invalidate_dcache_all(void);
void invalidate_icache_all(void);
enum {
/* Disable caches (else flush caches but leave them active) */
CBL_DISABLE_CACHES = 1 << 0,
CBL_SHOW_BOOTSTAGE_REPORT = 1 << 1,
CBL_ALL = 3,
};
/**
* Clean up ready for linux
*
* @param flags Flags to control what is done
*/
int cleanup_before_linux_select(int flags);
void reset_cpu(void);
#endif
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