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# Copyright (c) 2015-2016 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
# 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
# Glenn Bergmans
from m5.SimObject import SimObject
from m5.params import *
from m5.proxy import *
from Device import PioDevice
from Platform import Platform
class PciHost(PioDevice):
type = 'PciHost'
cxx_class = 'PciHost'
cxx_header = "dev/pci/host.hh"
abstract = True
class GenericPciHost(PciHost):
type = 'GenericPciHost'
cxx_class = 'GenericPciHost'
cxx_header = "dev/pci/host.hh"
platform = Param.Platform(Parent.any, "Platform to use for interrupts")
conf_base = Param.Addr("Config space base address")
conf_size = Param.Addr("Config space base address")
conf_device_bits = Param.UInt8(8, "Number of bits used to as an "
"offset a devices address space")
pci_pio_base = Param.Addr(0, "Base address for PCI IO accesses")
pci_mem_base = Param.Addr(0, "Base address for PCI memory accesses")
pci_dma_base = Param.Addr(0, "Base address for DMA memory accesses")
def pciFdtAddr(self, bus=0, device=0, function=0, register=0, space=0,
aliased=0, prefetchable=0, relocatable=0, addr=0):
busf = bus & 0xff
devicef = device & 0x1f
functionf = function & 0x7
registerf = register & 0xff
spacef = space & 0x3
aliasedf = aliased & 0x1
prefetchablef = prefetchable & 0x1
relocatablef = relocatable & 0x1
if busf != bus or \
devicef != device or \
functionf != function or \
registerf != register or \
spacef != space or \
aliasedf != aliased or \
prefetchablef != prefetchable or \
relocatablef != relocatable:
fatal("One of the fields for the PCI address is out of bounds")
address = registerf | (functionf << 8) | (devicef << 11) | \
(busf << 16) | (spacef << 24) | (aliasedf << 29) | \
(prefetchablef << 30) | (relocatablef << 31)
low_addr = addr & 0xffffffff
high_addr = (addr >> 32) & 0xffffffff
return [address, high_addr, low_addr]
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