gem5/src/dev/arm/NoMali.py
Andreas Sandberg 3329de1e86 dev, arm: Add a customizable NoMali GPU model
Add a customizable NoMali GPU model and an example Mali T760
configuration. Unlike the normal NoMali model (NoMaliGpu), the
NoMaliCustopmGpu model exposes all the important GPU ID registers to
Python. This makes it possible to implement custom GPU configurations
by without changing the underlying NoMali library.

Change-Id: I4fdba05844c3589893aa1a4c11dc376ec33d4e9e
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Andreas Hansson <andreas.hansson@arm.com>
2016-09-06 10:22:38 +01:00

128 lines
4.4 KiB
Python

# Copyright (c) 2014-2016 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
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# modified or unmodified, in source code or in binary form.
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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
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# this software without specific prior written permission.
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# 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")
class CustomNoMaliGpu(NoMaliGpu):
"""Base class for custom NoMali implementation that need to override
configuration registers. See CustomNoMaliT760 for a usage example.
"""
type = 'CustomNoMaliGpu'
cxx_header = "dev/arm/gpu_nomali.hh"
gpu_id = Param.UInt32("")
l2_features = Param.UInt32("")
tiler_features = Param.UInt32("")
mem_features = Param.UInt32("")
mmu_features = Param.UInt32("")
as_present = Param.UInt32("")
js_present = Param.UInt32("")
thread_max_threads = Param.UInt32("")
thread_max_workgroup_size = Param.UInt32("")
thread_max_barrier_size = Param.UInt32("")
thread_features = Param.UInt32("")
texture_features = VectorParam.UInt32("")
js_features = VectorParam.UInt32("")
shader_present = Param.UInt64("")
tiler_present = Param.UInt64("")
l2_present = Param.UInt64("")
class CustomNoMaliT760(CustomNoMaliGpu):
"""Example NoMali T760 r0p0-0 configuration using the defaults from
the NoMali library.
"""
gpu_id = 0x07500000
l2_features = 0x07130206
tiler_features = 0x00000809
mem_features = 0x00000001
mmu_features = 0x00002830
as_present = 0x000000ff
js_present = 0x00000007
thread_max_threads = 0x00000100
thread_max_workgroup_size = 0x00000100
thread_max_barrier_size = 0x00000100
thread_features = 0x0a040400
texture_features = [
0x00fe001e,
0x0000ffff,
0x9f81ffff,
]
js_features = [
0x0000020e,
0x000001fe,
0x0000007e,
]
shader_present = 0x0000000f
tiler_present = 0x00000001
l2_present = 0x00000001