42ce237dc9
1. 去除start_gcc.s中set_secondary_cpu_boot_address代码，这部分提取到qemu-vexpress-a9 bsp中。 2. 移动cpu.c中rt_hw_cpu_id函数到cp15_gcc.s，使用汇编实现，采用wake属性，方便bsp根据cpu特性获取CPU ID（多cpu集群中，不同厂家使用组合不一样）. 3. 整理start_gcc.s 适应多核启动，原来的代码只考虑到双核的情况。
29 lines
1.0 KiB
C
29 lines
1.0 KiB
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018-03-25 quanzhao the first version
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*/
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#ifndef __CP15_H__
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#define __CP15_H__
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#define __get_cp(cp, op1, Rt, CRn, CRm, op2) __asm__ volatile("MRC p" # cp ", " # op1 ", %0, c" # CRn ", c" # CRm ", " # op2 : "=r" (Rt) : : "memory" )
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#define __set_cp(cp, op1, Rt, CRn, CRm, op2) __asm__ volatile("MCR p" # cp ", " # op1 ", %0, c" # CRn ", c" # CRm ", " # op2 : : "r" (Rt) : "memory" )
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#define __get_cp64(cp, op1, Rt, CRm) __asm__ volatile("MRRC p" # cp ", " # op1 ", %Q0, %R0, c" # CRm : "=r" (Rt) : : "memory" )
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#define __set_cp64(cp, op1, Rt, CRm) __asm__ volatile("MCRR p" # cp ", " # op1 ", %Q0, %R0, c" # CRm : : "r" (Rt) : "memory" )
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int rt_hw_cpu_id(void);
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void rt_cpu_mmu_disable(void);
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void rt_cpu_mmu_enable(void);
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void rt_cpu_tlb_set(volatile unsigned long*);
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void rt_cpu_dcache_clean_flush(void);
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void rt_cpu_icache_flush(void);
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void rt_cpu_vector_set_base(unsigned int addr);
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#endif
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