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+/*
+ * Copyright (c) 2014-2015 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
+ * 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: Andreas Sandberg
+ */
+
+#ifndef __DEV_ARM_NOMALI_GPU_HH__
+#define __DEV_ARM_NOMALI_GPU_HH__
+
+#include <map>
+
+#include "dev/io_device.hh"
+#include "libnomali/nomali.h"
+
+class NoMaliGpuParams;
+class RealView;
+
+class NoMaliGpu : public PioDevice
+{
+ public:
+ NoMaliGpu(const NoMaliGpuParams *p);
+ virtual ~NoMaliGpu();
+
+ public: /* Checkpointing */
+ void serialize(CheckpointOut &cp) const M5_ATTR_OVERRIDE;
+ void unserialize(CheckpointIn &cp) M5_ATTR_OVERRIDE;
+
+ public: /* IO device interfaces */
+ Tick read(PacketPtr pkt) M5_ATTR_OVERRIDE;
+ Tick write(PacketPtr pkt) M5_ATTR_OVERRIDE;
+ AddrRangeList getAddrRanges() const M5_ATTR_OVERRIDE;
+
+ private:
+ /**
+ * Interrupt callback from the NoMali library.
+ *
+ * This method calls onInterrupt() on the NoMaliGpu owning this
+ * device.
+ *
+ * @param h NoMali library handle.
+ * @param usr Pointer to an instance of the NoMaliGpu
+ * @param intno GPU interrupt type
+ * @param set Was the interrupt raised (1) or lowered (0)?
+ */
+ static void _interrupt(nomali_handle_t h, void *usr,
+ nomali_int_t intno, int set);
+
+ void onInterrupt(nomali_handle_t h, nomali_int_t intno, bool set);
+
+ /** Wrapper around nomali_reg_read(). */
+ uint32_t readReg(nomali_addr_t reg);
+ /** Wrapper around nomali_reg_write(). */
+ void writeReg(nomali_addr_t reg, uint32_t value);
+
+ /** Wrapper around nomali_reg_read_raw(). */
+ uint32_t readRegRaw(nomali_addr_t reg) const;
+ /** Wrapper around nomali_reg_write_raw(). */
+ void writeRegRaw(nomali_addr_t reg, uint32_t value);
+
+ /**
+ * Format a NoMali error into an error message and panic.
+ *
+ * @param err Error code from the NoMali library.
+ * @param msg Message to print.
+ */
+ static void gpuPanic(nomali_error_t err, const char *msg) M5_ATTR_NORETURN;
+ /**
+ * Panic if the NoMali returned an error, do nothing otherwise.
+ *
+ * @param err Error code from the NoMali library.
+ * @param msg Message to print when panicking.
+ */
+ static void panicOnErr(nomali_error_t err, const char *msg) {
+ if (err != NOMALI_E_OK)
+ gpuPanic(err, msg);
+ }
+
+ /** Device base address */
+ const Addr pioAddr;
+
+ /** Platform, used to discover GIC */
+ RealView *const platform;
+
+ /** Map between NoMali interrupt types and actual GIC
+ * interrupts */
+ const std::map<nomali_int_t, uint32_t> interruptMap;
+
+
+ /** Cached information struct from the NoMali library */
+ nomali_info_t nomaliInfo;
+
+ /** Handle of a NoMali library instance */
+ nomali_handle_t nomali;
+};
+
+
+#endif // __DEV_ARM_NOMALI_GPU_HH__