80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/*
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* Copyright (c) 2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "gicv2.h"
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#include "spinlock.h"
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#include "exceptions.h"
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#include "utils.h"
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#include "platform/interrupt_config.h"
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#include "memory_map.h"
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#define IRQ_PRIORITY_HOST 0
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#define IRQ_PRIORITY_GUEST 1
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#define IRQ_CFGR_SHIFT(id) (2*((id) % 16))
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typedef struct IrqManager {
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RecursiveSpinlock lock;
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u16 numSharedInterrupts;
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u8 priorityShift;
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u8 numPriorityLevels;
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u8 numCpuInterfaces;
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u8 numListRegisters;
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} IrqManager;
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typedef enum ThermosphereSgi {
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ThermosphereSgi_ExecuteFunction = 0,
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ThermosphereSgi_VgicUpdate,
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ThermosphereSgi_DebugPause,
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ThermosphereSgi_ReportDebuggerBreak,
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ThermosphereSgi_DebuggerContinue,
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ThermosphereSgi_Max,
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} ThermosphereSgi;
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static volatile ArmGicV2Distributor *const gicd = (volatile ArmGicV2Distributor *)MEMORY_MAP_VA_GICD;
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static volatile ArmGicV2Controller *const gicc = (volatile ArmGicV2Controller *)MEMORY_MAP_VA_GICC;
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static volatile ArmGicV2VirtualInterfaceController *const gich = (volatile ArmGicV2VirtualInterfaceController *)MEMORY_MAP_VA_GICH;
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extern IrqManager g_irqManager;
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void initIrq(void);
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void configureInterrupt(u16 id, u8 prio, bool isLevelSensitive);
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bool irqIsGuest(u16 id);
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void irqSetAffinity(u16 id, u8 affinityMask);
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static inline void generateSgiForAllOthers(ThermosphereSgi id)
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{
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gicd->sgir = (1 << 24) | ((u32)id & 0xF);
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}
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static inline void generateSgiForSelf(ThermosphereSgi id)
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{
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gicd->sgir = (2 << 24) | ((u32)id & 0xF);
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}
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static inline void generateSgiForList(ThermosphereSgi id, u32 list)
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{
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gicd->sgir = (0 << 24) | (list << 16) | ((u32)id & 0xF);
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}
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static inline void generateSgiForAll(ThermosphereSgi id)
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{
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generateSgiForList(id, MASK(g_irqManager.numCpuInterfaces));
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}
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