projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 62f9b654 SG |
1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 2 | /* | |
| 3 | * (C) Copyright 2000-2009 | |
| 4 | * Wolfgang Denk, DENX Software Engineering, [email protected]. | |
| 5 | * Copyright 2019 Google LLC | |
| 6 | */ | |
| 7 | ||
| 8 | #ifndef __CPU_LEGACY_H | |
| 9 | #define __CPU_LEGACY_H | |
| 10 | ||
| 11 | #include <linux/types.h> | |
| 12 | ||
| 13 | /* | |
| 14 | * Multicore arch functions | |
| 15 | * | |
| 16 | * These should be moved to use the CPU uclass. | |
| 17 | */ | |
| 18 | int cpu_status(u32 nr); | |
| 19 | int cpu_reset(u32 nr); | |
| 20 | int cpu_disable(u32 nr); | |
| 09140113 | 21 | int cpu_release(u32 nr, int argc, char *const argv[]); |
| 62f9b654 | 22 | |
| 30c7c434 SG |
23 | static inline int cpumask_next(int cpu, unsigned int mask) |
| 24 | { | |
| 25 | for (cpu++; !((1 << cpu) & mask); cpu++) | |
| 26 | ; | |
| 27 | ||
| 28 | return cpu; | |
| 29 | } | |
| 30 | ||
| 31 | #define for_each_cpu(iter, cpu, num_cpus, mask) \ | |
| 32 | for (iter = 0, cpu = cpumask_next(-1, mask); \ | |
| 33 | iter < num_cpus; \ | |
| 34 | iter++, cpu = cpumask_next(cpu, mask)) \ | |
| 35 | ||
| 36 | int cpu_numcores(void); | |
| 37 | int cpu_num_dspcores(void); | |
| 38 | u32 cpu_mask(void); | |
| 39 | u32 cpu_dsp_mask(void); | |
| 40 | int is_core_valid(unsigned int core); | |
| 41 | ||
| 42 | /** | |
| 43 | * checkcpu() - perform an early check of the CPU | |
| 44 | * | |
| 45 | * This is used on PowerPC, SH and X86 machines as a CPU init mechanism. It is | |
| 46 | * called during the pre-relocation init sequence in board_init_f(). | |
| 47 | * | |
| 48 | * @return 0 if oK, -ve on error | |
| 49 | */ | |
| 50 | int checkcpu(void); | |
| 51 | ||
| 62270f43 SG |
52 | void smp_set_core_boot_addr(unsigned long addr, int corenr); |
| 53 | void smp_kick_all_cpus(void); | |
| 54 | ||
| 9edefc27 SG |
55 | int icache_status(void); |
| 56 | void icache_enable(void); | |
| 57 | void icache_disable(void); | |
| 58 | int dcache_status(void); | |
| 59 | void dcache_enable(void); | |
| 60 | void dcache_disable(void); | |
| 61 | void mmu_disable(void); | |
| 62 | ||
| 1eb69ae4 SG |
63 | /* arch/$(ARCH)/lib/cache.c */ |
| 64 | void enable_caches(void); | |
| 65 | void flush_cache(unsigned long addr, unsigned long size); | |
| 66 | void flush_dcache_all(void); | |
| 67 | void flush_dcache_range(unsigned long start, unsigned long stop); | |
| 68 | void invalidate_dcache_range(unsigned long start, unsigned long stop); | |
| 69 | void invalidate_dcache_all(void); | |
| 70 | void invalidate_icache_all(void); | |
| 71 | ||
| 72 | enum { | |
| 73 | /* Disable caches (else flush caches but leave them active) */ | |
| 74 | CBL_DISABLE_CACHES = 1 << 0, | |
| 75 | CBL_SHOW_BOOTSTAGE_REPORT = 1 << 1, | |
| 76 | ||
| 77 | CBL_ALL = 3, | |
| 78 | }; | |
| 79 | ||
| 80 | /** | |
| 81 | * Clean up ready for linux | |
| 82 | * | |
| 83 | * @param flags Flags to control what is done | |
| 84 | */ | |
| 85 | int cleanup_before_linux_select(int flags); | |
| 9a3b4ceb | 86 | |
| 35b65dd8 HS |
87 | void reset_cpu(void); |
| 88 | ||
| 62f9b654 | 89 | #endif |