X86LocalApic.py (13665:9c7fe3811b88) | X86LocalApic.py (14145:066ba9040e5e) |
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1# Copyright (c) 2012 ARM Limited 2# All rights reserved. 3# 4# The license below extends only to copyright in the software and shall 5# not be construed as granting a license to any other intellectual 6# property including but not limited to intellectual property relating 7# to a hardware implementation of the functionality of the software 8# licensed hereunder. You may use the software subject to the license --- 29 unchanged lines hidden (view full) --- 38# 39# Authors: Gabe Black 40 41from m5.defines import buildEnv 42from m5.params import * 43from m5.proxy import * 44 45from m5.objects.Device import BasicPioDevice | 1# Copyright (c) 2012 ARM Limited 2# All rights reserved. 3# 4# The license below extends only to copyright in the software and shall 5# not be construed as granting a license to any other intellectual 6# property including but not limited to intellectual property relating 7# to a hardware implementation of the functionality of the software 8# licensed hereunder. You may use the software subject to the license --- 29 unchanged lines hidden (view full) --- 38# 39# Authors: Gabe Black 40 41from m5.defines import buildEnv 42from m5.params import * 43from m5.proxy import * 44 45from m5.objects.Device import BasicPioDevice |
46from m5.objects.ClockDomain import DerivedClockDomain |
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46 47class X86LocalApic(BasicPioDevice): 48 type = 'X86LocalApic' 49 cxx_class = 'X86ISA::Interrupts' 50 cxx_header = 'arch/x86/interrupts.hh' 51 int_master = MasterPort("Port for sending interrupt messages") 52 int_slave = SlavePort("Port for receiving interrupt messages") 53 int_latency = Param.Latency('1ns', \ 54 "Latency for an interrupt to propagate through this device.") | 47 48class X86LocalApic(BasicPioDevice): 49 type = 'X86LocalApic' 50 cxx_class = 'X86ISA::Interrupts' 51 cxx_header = 'arch/x86/interrupts.hh' 52 int_master = MasterPort("Port for sending interrupt messages") 53 int_slave = SlavePort("Port for receiving interrupt messages") 54 int_latency = Param.Latency('1ns', \ 55 "Latency for an interrupt to propagate through this device.") |
56 57 # pio_addr isn't used by the local APIC model since it's address is 58 # calculated dynamically using the initial ID of the CPU it's attached to, 59 # but it needs to be set to something to make the BasicPioDevice happy. 60 pio_addr = 0x2000000000000000 61 62 # The clock rate for the local APIC timer is supposed to be the "bus clock" 63 # which we assume is 1/16th the rate of the CPU clock. I don't think this 64 # is a hard rule, but seems to be true in practice. This can be overriden 65 # in configs that use it. 66 clk_domain = DerivedClockDomain( 67 clk_domain=Parent.clk_domain, clk_divider=16) |
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