changeset 5c76426fd9ee in /z/repo/gem5
details: http://repo.gem5.org/gem5?cmd=changeset;node=5c76426fd9ee
description:
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.
diffstat:
src/dev/arm/NoMali.py | 63 ++++++++++
src/dev/arm/SConscript | 3 +
src/dev/arm/gpu_nomali.cc | 267 ++++++++++++++++++++++++++++++++++++++++++++++
src/dev/arm/gpu_nomali.hh | 130 ++++++++++++++++++++++
4 files changed, 463 insertions(+), 0 deletions(-)
diffs (truncated from 496 to 300 lines):
diff -r 71ace17ccb3d -r 5c76426fd9ee src/dev/arm/NoMali.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/dev/arm/NoMali.py Tue Jul 07 10:03:14 2015 +0100
@@ -0,0 +1,63 @@
+# 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
+
+from m5.params import *
+from Device import BasicPioDevice
+from Gic import *
+
+class NoMaliGpuType(Enum): vals = [
+ 'T60x',
+ 'T62x',
+ 'T760',
+ ]
+
+class NoMaliGpu(PioDevice):
+ type = 'NoMaliGpu'
+ cxx_header = "dev/arm/gpu_nomali.hh"
+
+ pio_addr = Param.Addr("Device base address")
+
+ platform = Param.RealView(Parent.any, "Platform this device is part of.")
+
+ gpu_type = Param.NoMaliGpuType("T760", "GPU type")
+ ver_maj = Param.UInt32(0, "GPU Version (Major)")
+ ver_min = Param.UInt32(0, "GPU Version (Minor)")
+ ver_status = Param.UInt32(0, "GPU Version (Status)")
+
+ int_gpu = Param.UInt32("Interrupt number for GPU interrupts")
+ int_job = Param.UInt32("Interrupt number for JOB interrupts")
+ int_mmu = Param.UInt32("Interrupt number for MMU interrupts")
diff -r 71ace17ccb3d -r 5c76426fd9ee src/dev/arm/SConscript
--- a/src/dev/arm/SConscript Tue Jul 07 10:03:13 2015 +0100
+++ b/src/dev/arm/SConscript Tue Jul 07 10:03:14 2015 +0100
@@ -46,6 +46,7 @@
SimObject('RealView.py')
SimObject('UFSHostDevice.py')
SimObject('EnergyCtrl.py')
+ SimObject('NoMali.py')
Source('a9scu.cc')
Source('amba_device.cc')
@@ -60,6 +61,7 @@
Source('hdlcd.cc')
Source('kmi.cc')
Source('timer_sp804.cc')
+ Source('gpu_nomali.cc')
Source('rv_ctrl.cc')
Source('realview.cc')
Source('rtc_pl031.cc')
@@ -79,3 +81,4 @@
DebugFlag('EnergyCtrl')
DebugFlag('UFSHostDevice')
DebugFlag('VGIC')
+ DebugFlag('NoMali')
diff -r 71ace17ccb3d -r 5c76426fd9ee src/dev/arm/gpu_nomali.cc
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/dev/arm/gpu_nomali.cc Tue Jul 07 10:03:14 2015 +0100
@@ -0,0 +1,267 @@
+/*
+ * 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
+ */
+
+#include "dev/arm/gpu_nomali.hh"
+
+#include "debug/NoMali.hh"
+#include "dev/arm/base_gic.hh"
+#include "dev/arm/realview.hh"
+#include "enums/MemoryMode.hh"
+#include "mem/packet_access.hh"
+#include "params/NoMaliGpu.hh"
+
+NoMaliGpu::NoMaliGpu(const NoMaliGpuParams *p)
+ : PioDevice(p),
+ pioAddr(p->pio_addr),
+ platform(p->platform),
+ interruptMap{
+ { NOMALI_INT_GPU, p->int_gpu },
+ { NOMALI_INT_JOB, p->int_job },
+ { NOMALI_INT_MMU, p->int_mmu },
+ }
+{
+ if (nomali_api_version() != NOMALI_API_VERSION)
+ panic("NoMali library API mismatch!\n");
+
+ /* Setup the GPU configuration based on our param struct */
+ nomali_config_t cfg;
+ memset(&cfg, 0, sizeof(cfg));
+
+ switch (p->gpu_type) {
+ case Enums::T60x:
+ cfg.type = NOMALI_GPU_T60X;
+ break;
+
+ case Enums::T62x:
+ cfg.type = NOMALI_GPU_T62X;
+ break;
+
+ case Enums::T760:
+ cfg.type = NOMALI_GPU_T760;
+ break;
+
+ default:
+ fatal("Unknown GPU type\n");
+ }
+
+ cfg.ver_maj = p->ver_maj;
+ cfg.ver_min = p->ver_min;
+ cfg.ver_status = p->ver_status;
+
+ panicOnErr(
+ nomali_create(&nomali, &cfg),
+ "Failed to instantiate NoMali");
+
+
+ /* Setup an interrupt callback */
+ nomali_callback_t cbk_int;
+ cbk_int.type = NOMALI_CALLBACK_INT;
+ cbk_int.usr = (void *)this;
+ cbk_int.func.interrupt = NoMaliGpu::_interrupt;
+ panicOnErr(
+ nomali_set_callback(nomali, &cbk_int),
+ "Failed to setup interrupt callback");
+
+ panicOnErr(
+ nomali_get_info(nomali, &nomaliInfo),
+ "Failed to get NoMali information struct");
+}
+
+NoMaliGpu::~NoMaliGpu()
+{
+ nomali_destroy(nomali);
+}
+
+
+void
+NoMaliGpu::serialize(CheckpointOut &cp) const
+{
+ std::vector<uint32_t> regs(nomaliInfo.reg_size >> 2);
+
+ for (int i = 0; i < nomaliInfo.reg_size; i += 4)
+ regs[i >> 2] = readRegRaw(i);
+
+ SERIALIZE_CONTAINER(regs);
+}
+
+void
+NoMaliGpu::unserialize(CheckpointIn &cp)
+{
+ std::vector<uint32_t> regs(nomaliInfo.reg_size >> 2);
+
+ UNSERIALIZE_CONTAINER(regs);
+
+ for (int i = 0; i < nomaliInfo.reg_size; i += 4)
+ writeRegRaw(i, regs[i >> 2]);
+}
+
+Tick
+NoMaliGpu::read(PacketPtr pkt)
+{
+ assert(pkt->getAddr() >= pioAddr);
+ const Addr addr(pkt->getAddr() - pioAddr);
+ const unsigned size(pkt->getSize());
+
+ if (addr + size >= nomaliInfo.reg_size)
+ panic("GPU register '0x%x' out of range!\n", addr);
+
+ if (size != 4)
+ panic("Unexpected GPU register read size: %i\n", size);
+ else if (addr & 0x3)
+ panic("Unaligned GPU read: %i\n", size);
+
+ pkt->set<uint32_t>(readReg(addr));
+ pkt->makeResponse();
+
+ return 0;
+}
+
+Tick
+NoMaliGpu::write(PacketPtr pkt)
+{
+ assert(pkt->getAddr() >= pioAddr);
+ const Addr addr(pkt->getAddr() - pioAddr);
+ const unsigned size(pkt->getSize());
+
+ if (addr + size >= nomaliInfo.reg_size)
+ panic("GPU register '0x%x' out of range!\n", addr);
+
+ if (size != 4)
+ panic("Unexpected GPU register write size: %i\n", size);
+ else if (addr & 0x3)
+ panic("Unaligned GPU write: %i\n", size);
+
+ writeReg(addr, pkt->get<uint32_t>());
+ pkt->makeAtomicResponse();
+
+ return 0;
+}
+
+AddrRangeList
+NoMaliGpu::getAddrRanges() const
+{
+ return AddrRangeList({ RangeSize(pioAddr, nomaliInfo.reg_size) });
+}
+
+uint32_t
+NoMaliGpu::readReg(nomali_addr_t reg)
+{
+ uint32_t value;
+
+ panicOnErr(
+ nomali_reg_read(nomali, &value, reg),
+ "GPU register read failed");
+
+ DPRINTF(NoMali, "readReg(0x%x): 0x%x\n",
+ reg, value);
+
+ return value;
+}
+
+
+void
+NoMaliGpu::writeReg(nomali_addr_t reg, uint32_t value)
+{
+ DPRINTF(NoMali, "writeReg(0x%x, 0x%x)\n",
+ reg, value);
+
+ panicOnErr(
+ nomali_reg_write(nomali, reg, value),
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