43 lines
1.3 KiB
C#
43 lines
1.3 KiB
C#
/*
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This Source Code Form is subject to the terms of the Mozilla Public
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License, v. 2.0. If a copy of the MPL was not distributed with this
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file, You can obtain one at http://mozilla.org/MPL/2.0/.
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Copyright (C) 2009-2010 Michael Möller <mmoeller@openhardwaremonitor.org>
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*/
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namespace OpenHardwareMonitor.Hardware.CPU {
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internal abstract class AMDCPU : GenericCPU {
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private const byte PCI_BUS = 0;
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private const byte PCI_BASE_DEVICE = 0x18;
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private const byte DEVICE_VENDOR_ID_REGISTER = 0;
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private const ushort AMD_VENDOR_ID = 0x1022;
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public AMDCPU(int processorIndex, CPUID[][] cpuid, ISettings settings)
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: base(processorIndex, cpuid, settings) { }
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protected uint GetPciAddress(byte function, ushort deviceId) {
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// assemble the pci address
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uint address = Ring0.GetPciAddress(PCI_BUS,
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(byte)(PCI_BASE_DEVICE + processorIndex), function);
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// verify that we have the correct bus, device and function
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uint deviceVendor;
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if (!Ring0.ReadPciConfig(
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address, DEVICE_VENDOR_ID_REGISTER, out deviceVendor))
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return Ring0.InvalidPciAddress;
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if (deviceVendor != (deviceId << 16 | AMD_VENDOR_ID))
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return Ring0.InvalidPciAddress;
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return address;
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}
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}
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}
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