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-rw-r--r--include/cpu_func.h87
1 files changed, 87 insertions, 0 deletions
diff --git a/include/cpu_func.h b/include/cpu_func.h
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+++ b/include/cpu_func.h
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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);
+;
+#endif