2 * Copyright (c) 2014-2015 ARM Limited
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
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8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
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12 * modified or unmodified, in source code or in binary form.
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17 * notice, this list of conditions and the following disclaimer;
18 * redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution;
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23 * this software without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 * Authors: Andreas Sandberg
40 #ifndef __DEV_ARM_NOMALI_GPU_HH__
41 #define __DEV_ARM_NOMALI_GPU_HH__
45 #include "dev/io_device.hh"
46 #include "libnomali/nomali.h"
48 class NoMaliGpuParams;
51 class NoMaliGpu : public PioDevice
54 NoMaliGpu(const NoMaliGpuParams *p);
57 public: /* Checkpointing */
58 void serialize(CheckpointOut &cp) const override;
59 void unserialize(CheckpointIn &cp) override;
61 public: /* IO device interfaces */
62 Tick read(PacketPtr pkt) override;
63 Tick write(PacketPtr pkt) override;
64 AddrRangeList getAddrRanges() const override;
68 * Interrupt callback from the NoMali library.
70 * This method calls onInterrupt() on the NoMaliGpu owning this
73 * @param h NoMali library handle.
74 * @param usr Pointer to an instance of the NoMaliGpu
75 * @param intno GPU interrupt type
76 * @param set Was the interrupt raised (1) or lowered (0)?
78 static void _interrupt(nomali_handle_t h, void *usr,
79 nomali_int_t intno, int set);
81 void onInterrupt(nomali_handle_t h, nomali_int_t intno, bool set);
83 /** Wrapper around nomali_reg_read(). */
84 uint32_t readReg(nomali_addr_t reg);
85 /** Wrapper around nomali_reg_write(). */
86 void writeReg(nomali_addr_t reg, uint32_t value);
88 /** Wrapper around nomali_reg_read_raw(). */
89 uint32_t readRegRaw(nomali_addr_t reg) const;
90 /** Wrapper around nomali_reg_write_raw(). */
91 void writeRegRaw(nomali_addr_t reg, uint32_t value);
94 * Format a NoMali error into an error message and panic.
96 * @param err Error code from the NoMali library.
97 * @param msg Message to print.
99 static void gpuPanic(nomali_error_t err, const char *msg) M5_ATTR_NORETURN;
101 * Panic if the NoMali returned an error, do nothing otherwise.
103 * @param err Error code from the NoMali library.
104 * @param msg Message to print when panicking.
106 static void panicOnErr(nomali_error_t err, const char *msg) {
107 if (err != NOMALI_E_OK)
111 /** Device base address */
114 /** Platform, used to discover GIC */
115 RealView *const platform;
117 /** Map between NoMali interrupt types and actual GIC
119 const std::map<nomali_int_t, uint32_t> interruptMap;
122 /** Cached information struct from the NoMali library */
123 nomali_info_t nomaliInfo;
125 /** Handle of a NoMali library instance */
126 nomali_handle_t nomali;
130 #endif // __DEV_ARM_NOMALI_GPU_HH__