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+/*
+ * Copyright (c) 2018 Metempsy Technology Consulting
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Jairo Balart
+ */
+
+#ifndef __DEV_ARM_GICV3_H__
+#define __DEV_ARM_GICV3_H__
+
+#include "dev/arm/base_gic.hh"
+#include "params/Gicv3.hh"
+
+class Gicv3Distributor;
+class Gicv3Redistributor;
+class Gicv3CPUInterface;
+
+class Gicv3 : public BaseGic
+{
+ protected:
+
+ Gicv3Distributor * distributor;
+ std::vector<Gicv3Redistributor *> redistributors;
+ std::vector<Gicv3CPUInterface *> cpuInterfaces;
+ AddrRange distRange;
+ AddrRange redistRange;
+ AddrRangeList addrRanges;
+
+ public:
+
+ // Special interrupt IDs
+ static const int INTID_SECURE = 1020;
+ static const int INTID_NONSECURE = 1021;
+ static const int INTID_SPURIOUS = 1023;
+
+ // Number of Software Generated Interrupts
+ static const int SGI_MAX = 16;
+ // Number of Private Peripheral Interrupts
+ static const int PPI_MAX = 16;
+
+ typedef enum {
+ INT_INACTIVE,
+ INT_PENDING,
+ INT_ACTIVE,
+ INT_ACTIVE_PENDING,
+ } IntStatus;
+
+ typedef enum {
+ G0S,
+ G1S,
+ G1NS,
+ } GroupId;
+
+ typedef enum {
+ INT_LEVEL_SENSITIVE,
+ INT_EDGE_TRIGGERED,
+ } IntTriggerType;
+
+ typedef Gicv3Params Params;
+
+ const Params *
+ params() const
+ {
+ return dynamic_cast<const Params *>(_params);
+ }
+
+ Gicv3(const Params * p);
+ ~Gicv3();
+ void init() override;
+ void initState() override;
+
+ AddrRangeList
+ getAddrRanges() const override
+ {
+ return addrRanges;
+ }
+
+ Tick read(PacketPtr pkt) override;
+ Tick write(PacketPtr pkt) override;
+ void sendInt(uint32_t int_id) override;
+ void clearInt(uint32_t int_id) override;
+ void sendPPInt(uint32_t int_id, uint32_t cpu) override;
+ void clearPPInt(uint32_t int_id, uint32_t cpu) override;
+
+ void serialize(CheckpointOut & cp) const override;
+ void unserialize(CheckpointIn & cp) override;
+
+ Gicv3Distributor *
+ getDistributor() const
+ {
+ return distributor;
+ }
+
+ Gicv3CPUInterface *
+ getCPUInterface(int cpu_id) const
+ {
+ assert(cpu_id < cpuInterfaces.size() and cpuInterfaces[cpu_id]);
+ return cpuInterfaces[cpu_id];
+ }
+
+ Gicv3Redistributor *
+ getRedistributor(ContextID context_id) const
+ {
+ assert(context_id < redistributors.size() and
+ redistributors[context_id]);
+ return redistributors[context_id];
+ }
+
+ Gicv3Redistributor * getRedistributorByAffinity(uint32_t affinity);
+ void postInt(uint32_t cpu, ArmISA::InterruptTypes int_type);
+ void postDelayedInt(uint32_t cpu, ArmISA::InterruptTypes int_type);
+ void deassertInt(uint32_t cpu, ArmISA::InterruptTypes int_type);
+
+ protected:
+
+ void reset();
+};
+
+#endif //__DEV_ARM_GICV3_H__