80 lines
1.7 KiB
C++
80 lines
1.7 KiB
C++
/*
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* \brief L2 outer cache controller ARM PL310
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* \author Johannes Schlatow
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* \author Stefan Kalkowski
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* \author Martin Stein
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* \date 2014-06-02
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*/
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/*
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* Copyright (C) 2014-2015 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 General Public License version 2.
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*/
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#ifndef _SPEC__ARM__PL310_H_
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#define _SPEC__ARM__PL310_H_
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/* Genode includes */
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#include <util/mmio.h>
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namespace Arm
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{
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struct Pl310;
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}
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/**
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* L2 outer cache controller
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*/
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struct Arm::Pl310 : Genode::Mmio
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{
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struct Control : Register <0x100, 32>
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{
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struct Enable : Bitfield<0,1> { };
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};
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struct Aux : Register<0x104, 32>
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{
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struct Associativity : Bitfield<16,1> { };
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struct Way_size : Bitfield<17,3> { };
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struct Share_override : Bitfield<22,1> { };
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struct Reserved : Bitfield<25,1> { };
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struct Ns_lockdown : Bitfield<26,1> { };
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struct Ns_irq_ctrl : Bitfield<27,1> { };
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struct Data_prefetch : Bitfield<28,1> { };
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struct Inst_prefetch : Bitfield<29,1> { };
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struct Early_bresp : Bitfield<30,1> { };
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};
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struct Irq_mask : Register <0x214, 32> { };
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struct Irq_clear : Register <0x220, 32> { };
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struct Cache_sync : Register <0x730, 32> { };
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struct Invalidate_by_way : Register <0x77c, 32> { };
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struct Clean_invalidate_by_way : Register <0x7fc, 32> { };
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Pl310(Genode::addr_t const base) : Mmio(base) { }
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inline void sync() { while (read<Cache_sync>()) ; }
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void flush()
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{
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write<Clean_invalidate_by_way>((1UL << 16) - 1);
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sync();
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}
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void invalidate()
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{
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write<Invalidate_by_way>((1UL << 16) - 1);
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sync();
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}
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void mask_interrupts()
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{
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write<Irq_mask>(0);
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write<Irq_clear>(~0UL);
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}
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};
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#endif /* _SPEC__ARM__PL310_H_ */
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