32 lines
707 B
C
32 lines
707 B
C
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/*
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* Copyright 2021, Haiku, Inc.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _PLIC_H_
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#define _PLIC_H_
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#include <SupportDefs.h>
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// platform-level interrupt controller
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struct PlicRegs
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{
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// context = hart * 2 + mode, mode: 0 - machine, 1 - supervisor
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uint32 priority[1024]; // 0x000000
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uint32 pending[1024 / 32]; // 0x001000, bitfield
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uint8 unused1[0x2000 - 0x1080];
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uint32 enable[15872][1024 / 32]; // 0x002000, bitfield, [context][enable]
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uint8 unused2[0xe000];
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struct {
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uint32 priorityThreshold;
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uint32 claimAndComplete;
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uint8 unused[0xff8];
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} contexts[15872]; // 0x200000
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};
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extern PlicRegs* volatile gPlicRegs;
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#endif // _PLIC_H_
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