GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/include/cpu_func.h

@@ -0,0 +1,87 @@
+/* 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