1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889 |
- /* 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(ulong addr);
- ;
- #endif
|