dev, arm: Add a device model that uses the NoMali model
Add a simple device shim that interfaces with the NoMali model library. The gem5 side of the interface supports Mali T60x/T62x/T760 GPUs. This device model pretends to be a Mali GPU, but doesn't render anything and executes in zero time.
This commit is contained in:
Andreas Sandberg
parent
c274057840
commit
a74c446e7d
4 changed files with 463 additions and 0 deletions
63
src/dev/arm/NoMali.py
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63
src/dev/arm/NoMali.py
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@ -0,0 +1,63 @@
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# Copyright (c) 2014-2015 ARM Limited
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# All rights reserved.
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
|
||||
# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
|
||||
# notice, this list of conditions and the following disclaimer in the
|
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
|
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# contributors may be used to endorse or promote products derived from
|
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Andreas Sandberg
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from m5.params import *
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from Device import BasicPioDevice
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from Gic import *
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class NoMaliGpuType(Enum): vals = [
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'T60x',
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'T62x',
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'T760',
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]
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class NoMaliGpu(PioDevice):
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type = 'NoMaliGpu'
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cxx_header = "dev/arm/gpu_nomali.hh"
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pio_addr = Param.Addr("Device base address")
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platform = Param.RealView(Parent.any, "Platform this device is part of.")
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gpu_type = Param.NoMaliGpuType("T760", "GPU type")
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ver_maj = Param.UInt32(0, "GPU Version (Major)")
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ver_min = Param.UInt32(0, "GPU Version (Minor)")
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ver_status = Param.UInt32(0, "GPU Version (Status)")
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int_gpu = Param.UInt32("Interrupt number for GPU interrupts")
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int_job = Param.UInt32("Interrupt number for JOB interrupts")
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int_mmu = Param.UInt32("Interrupt number for MMU interrupts")
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@ -46,6 +46,7 @@ if env['TARGET_ISA'] == 'arm':
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SimObject('RealView.py')
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SimObject('UFSHostDevice.py')
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SimObject('EnergyCtrl.py')
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SimObject('NoMali.py')
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Source('a9scu.cc')
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Source('amba_device.cc')
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@ -60,6 +61,7 @@ if env['TARGET_ISA'] == 'arm':
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Source('hdlcd.cc')
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Source('kmi.cc')
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Source('timer_sp804.cc')
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Source('gpu_nomali.cc')
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Source('rv_ctrl.cc')
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Source('realview.cc')
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Source('rtc_pl031.cc')
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@ -79,3 +81,4 @@ if env['TARGET_ISA'] == 'arm':
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DebugFlag('EnergyCtrl')
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DebugFlag('UFSHostDevice')
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DebugFlag('VGIC')
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DebugFlag('NoMali')
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267
src/dev/arm/gpu_nomali.cc
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267
src/dev/arm/gpu_nomali.cc
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@ -0,0 +1,267 @@
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/*
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* Copyright (c) 2014-2015 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
|
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* property including but not limited to intellectual property relating
|
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* to a hardware implementation of the functionality of the software
|
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* licensed hereunder. You may use the software subject to the license
|
||||
* terms below provided that you ensure that this notice is replicated
|
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* unmodified and in its entirety in all distributions of the software,
|
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* modified or unmodified, in source code or in binary form.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions are
|
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* 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
|
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* this software without specific prior written permission.
|
||||
*
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* 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
|
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* 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,
|
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Andreas Sandberg
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*/
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#include "dev/arm/gpu_nomali.hh"
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#include "debug/NoMali.hh"
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#include "dev/arm/base_gic.hh"
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#include "dev/arm/realview.hh"
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#include "enums/MemoryMode.hh"
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#include "mem/packet_access.hh"
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#include "params/NoMaliGpu.hh"
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NoMaliGpu::NoMaliGpu(const NoMaliGpuParams *p)
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: PioDevice(p),
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pioAddr(p->pio_addr),
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platform(p->platform),
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interruptMap{
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{ NOMALI_INT_GPU, p->int_gpu },
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{ NOMALI_INT_JOB, p->int_job },
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{ NOMALI_INT_MMU, p->int_mmu },
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}
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{
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if (nomali_api_version() != NOMALI_API_VERSION)
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panic("NoMali library API mismatch!\n");
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/* Setup the GPU configuration based on our param struct */
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nomali_config_t cfg;
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memset(&cfg, 0, sizeof(cfg));
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switch (p->gpu_type) {
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case Enums::T60x:
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cfg.type = NOMALI_GPU_T60X;
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break;
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case Enums::T62x:
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cfg.type = NOMALI_GPU_T62X;
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break;
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case Enums::T760:
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cfg.type = NOMALI_GPU_T760;
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break;
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default:
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fatal("Unknown GPU type\n");
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}
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cfg.ver_maj = p->ver_maj;
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cfg.ver_min = p->ver_min;
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cfg.ver_status = p->ver_status;
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panicOnErr(
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nomali_create(&nomali, &cfg),
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"Failed to instantiate NoMali");
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/* Setup an interrupt callback */
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nomali_callback_t cbk_int;
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cbk_int.type = NOMALI_CALLBACK_INT;
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cbk_int.usr = (void *)this;
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cbk_int.func.interrupt = NoMaliGpu::_interrupt;
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panicOnErr(
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nomali_set_callback(nomali, &cbk_int),
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"Failed to setup interrupt callback");
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panicOnErr(
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nomali_get_info(nomali, &nomaliInfo),
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"Failed to get NoMali information struct");
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}
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NoMaliGpu::~NoMaliGpu()
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{
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nomali_destroy(nomali);
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}
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void
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NoMaliGpu::serialize(CheckpointOut &cp) const
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{
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std::vector<uint32_t> regs(nomaliInfo.reg_size >> 2);
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for (int i = 0; i < nomaliInfo.reg_size; i += 4)
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regs[i >> 2] = readRegRaw(i);
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SERIALIZE_CONTAINER(regs);
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}
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void
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NoMaliGpu::unserialize(CheckpointIn &cp)
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{
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std::vector<uint32_t> regs(nomaliInfo.reg_size >> 2);
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UNSERIALIZE_CONTAINER(regs);
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for (int i = 0; i < nomaliInfo.reg_size; i += 4)
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writeRegRaw(i, regs[i >> 2]);
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}
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Tick
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NoMaliGpu::read(PacketPtr pkt)
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{
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assert(pkt->getAddr() >= pioAddr);
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const Addr addr(pkt->getAddr() - pioAddr);
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const unsigned size(pkt->getSize());
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if (addr + size >= nomaliInfo.reg_size)
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panic("GPU register '0x%x' out of range!\n", addr);
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if (size != 4)
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panic("Unexpected GPU register read size: %i\n", size);
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else if (addr & 0x3)
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panic("Unaligned GPU read: %i\n", size);
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pkt->set<uint32_t>(readReg(addr));
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pkt->makeResponse();
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return 0;
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}
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Tick
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NoMaliGpu::write(PacketPtr pkt)
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{
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assert(pkt->getAddr() >= pioAddr);
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const Addr addr(pkt->getAddr() - pioAddr);
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const unsigned size(pkt->getSize());
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if (addr + size >= nomaliInfo.reg_size)
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panic("GPU register '0x%x' out of range!\n", addr);
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if (size != 4)
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panic("Unexpected GPU register write size: %i\n", size);
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else if (addr & 0x3)
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panic("Unaligned GPU write: %i\n", size);
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writeReg(addr, pkt->get<uint32_t>());
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pkt->makeAtomicResponse();
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return 0;
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}
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AddrRangeList
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NoMaliGpu::getAddrRanges() const
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{
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return AddrRangeList({ RangeSize(pioAddr, nomaliInfo.reg_size) });
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}
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uint32_t
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NoMaliGpu::readReg(nomali_addr_t reg)
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{
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uint32_t value;
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panicOnErr(
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nomali_reg_read(nomali, &value, reg),
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"GPU register read failed");
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DPRINTF(NoMali, "readReg(0x%x): 0x%x\n",
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reg, value);
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return value;
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}
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void
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NoMaliGpu::writeReg(nomali_addr_t reg, uint32_t value)
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{
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DPRINTF(NoMali, "writeReg(0x%x, 0x%x)\n",
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reg, value);
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panicOnErr(
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nomali_reg_write(nomali, reg, value),
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"GPU register write failed");
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}
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uint32_t
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NoMaliGpu::readRegRaw(nomali_addr_t reg) const
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{
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uint32_t value;
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panicOnErr(
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nomali_reg_read_raw(nomali, &value, reg),
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"GPU raw register read failed");
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return value;
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}
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void
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NoMaliGpu::writeRegRaw(nomali_addr_t reg, uint32_t value)
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{
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panicOnErr(
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nomali_reg_write_raw(nomali, reg, value),
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"GPU raw register write failed");
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}
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void
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NoMaliGpu::_interrupt(nomali_handle_t h, void *usr, nomali_int_t intno, int set)
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{
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NoMaliGpu *_this(static_cast<NoMaliGpu *>(usr));
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_this->onInterrupt(h, intno, !!set);
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}
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void
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NoMaliGpu::onInterrupt(nomali_handle_t h, nomali_int_t intno, bool set)
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{
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const auto it_int(interruptMap.find(intno));
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if (it_int == interruptMap.end())
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panic("Unhandled interrupt from NoMali: %i\n", intno);
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DPRINTF(NoMali, "Interrupt %i->%i: %i\n",
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intno, it_int->second, set);
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assert(platform);
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assert(platform->gic);
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if (set)
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platform->gic->sendInt(it_int->second);
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else
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platform->gic->clearInt(it_int->second);
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}
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void
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NoMaliGpu::gpuPanic(nomali_error_t err, const char *msg)
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{
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panic("%s: %s\n", msg, nomali_errstr(err));
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}
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NoMaliGpu *
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NoMaliGpuParams::create()
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{
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return new NoMaliGpu(this);
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}
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130
src/dev/arm/gpu_nomali.hh
Normal file
130
src/dev/arm/gpu_nomali.hh
Normal file
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/*
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* Copyright (c) 2014-2015 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
|
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* 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
|
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* unmodified and in its entirety in all distributions of the software,
|
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* modified or unmodified, in source code or in binary form.
|
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*
|
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* 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.
|
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*
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* Authors: Andreas Sandberg
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*/
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#ifndef __DEV_ARM_NOMALI_GPU_HH__
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#define __DEV_ARM_NOMALI_GPU_HH__
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#include <map>
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#include "dev/io_device.hh"
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#include "libnomali/nomali.h"
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class NoMaliGpuParams;
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class RealView;
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class NoMaliGpu : public PioDevice
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{
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public:
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NoMaliGpu(const NoMaliGpuParams *p);
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virtual ~NoMaliGpu();
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public: /* Checkpointing */
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void serialize(CheckpointOut &cp) const M5_ATTR_OVERRIDE;
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void unserialize(CheckpointIn &cp) M5_ATTR_OVERRIDE;
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public: /* IO device interfaces */
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Tick read(PacketPtr pkt) M5_ATTR_OVERRIDE;
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Tick write(PacketPtr pkt) M5_ATTR_OVERRIDE;
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AddrRangeList getAddrRanges() const M5_ATTR_OVERRIDE;
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private:
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/**
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* Interrupt callback from the NoMali library.
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*
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* This method calls onInterrupt() on the NoMaliGpu owning this
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* device.
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*
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* @param h NoMali library handle.
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* @param usr Pointer to an instance of the NoMaliGpu
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* @param intno GPU interrupt type
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* @param set Was the interrupt raised (1) or lowered (0)?
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*/
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static void _interrupt(nomali_handle_t h, void *usr,
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nomali_int_t intno, int set);
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void onInterrupt(nomali_handle_t h, nomali_int_t intno, bool set);
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/** Wrapper around nomali_reg_read(). */
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uint32_t readReg(nomali_addr_t reg);
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/** Wrapper around nomali_reg_write(). */
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void writeReg(nomali_addr_t reg, uint32_t value);
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/** Wrapper around nomali_reg_read_raw(). */
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uint32_t readRegRaw(nomali_addr_t reg) const;
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/** Wrapper around nomali_reg_write_raw(). */
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void writeRegRaw(nomali_addr_t reg, uint32_t value);
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/**
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* Format a NoMali error into an error message and panic.
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*
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* @param err Error code from the NoMali library.
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* @param msg Message to print.
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*/
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||||
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__
|
||||
Loading…
Reference in a new issue