61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
/*
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* \brief CPU driver for core
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* \author Norman Feske
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* \author Martin stein
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* \date 2012-08-30
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*/
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/*
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* Copyright (C) 2012-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _CORE__SPEC__ARM_V6__CPU_H_
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#define _CORE__SPEC__ARM_V6__CPU_H_
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/* core includes */
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#include <spec/arm/cpu_support.h>
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namespace Genode { struct Cpu; }
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struct Genode::Cpu : Arm_cpu
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{
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static inline void synchronization_barrier() {}
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static inline size_t data_cache_line_size()
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{
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struct Ctr : Genode::Register<32> {
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struct D_min_line : Bitfield<12,2> {};
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};
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static size_t data_cache_line_size = 0;
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if (!data_cache_line_size) {
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data_cache_line_size =
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(1 << (Ctr::D_min_line::get(Arm_cpu::Ctr::read())+1)) * sizeof(addr_t);
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}
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return data_cache_line_size;
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}
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static inline size_t instruction_cache_line_size()
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{
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struct Ctr : Genode::Register<32> {
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struct I_min_line : Bitfield<0,2> {};
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};
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static size_t instruction_cache_line_size = 0;
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if (!instruction_cache_line_size) {
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instruction_cache_line_size =
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(1 << (Ctr::I_min_line::get(Arm_cpu::Ctr::read())+1)) * sizeof(addr_t);
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}
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return instruction_cache_line_size;
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}
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};
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#endif /* _CORE__SPEC__ARM_V6__CPU_H_ */
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