belatedly add files missing from 3d45069b3f (my bad)

This was SVN commit r7884.

source/lib/sysdep/arch/x86_x64/msr.cpp

@@ -0,0 +1,103 @@
+/* Copyright (c) 2010 Wildfire Games
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "precompiled.h"
+#include "lib/sysdep/arch/x86_x64/msr.h"
+
+#include "lib/sysdep/os/win/mahaf.h"
+#include "lib/sysdep/arch/x86_x64/x86_x64.h"
+
+
+namespace MSR {
+
+bool IsSupported()
+{
+	if(!x86_x64_Cap(X86_X64_CAP_MSR))
+		return false;
+
+	if(mahaf_Init() < 0)
+		return false;
+
+	return true;
+}
+
+
+bool HasEnergyPerfBias()
+{
+#if 1
+	// the documentation is unclear. until it improves, disable
+	// this, lest we provoke a GPF.
+	return false;	
+#else
+	if(x86_x64_Vendor() != X86_X64_VENDOR_INTEL)
+		return false;
+
+	if(x86_x64_Family() < 6)
+		return false;
+
+	if(x86_x64_Model() < 0xE)
+		return false;
+
+	return true;
+#endif
+}
+
+
+bool HasNehalem()
+{
+	if(x86_x64_Vendor() != X86_X64_VENDOR_INTEL)
+		return false;
+
+	if(x86_x64_Family() != 6)
+		return false;
+
+	switch(x86_x64_Model())
+	{
+	// Nehalem (documented in 253669-035US B.4.1)
+	case 0x1A:	// Bloomfield, Gainstown
+	case 0x1E:	// Clarksfield, Lynnfield, Jasper Forest
+	case 0x1F:
+		return true;
+
+	// Westmere (documented in 253669-035US B.5)
+	case 0x25:	// Clarkdale, Arrandale
+	case 0x2C:	// Gulftown
+		return true;
+
+	default:
+		return false;
+	}
+}
+
+
+u64 Read(u64 reg)
+{
+	return mahaf_ReadModelSpecificRegister(reg);
+}
+
+
+void Write(u64 reg, u64 value)
+{
+	mahaf_WriteModelSpecificRegister(reg, value);
+}
+
+}	// namespace MSR

source/lib/sysdep/arch/x86_x64/msr.h

@@ -0,0 +1,66 @@
+/* Copyright (c) 2010 Wildfire Games
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * model-specific registers
+ */
+
+#ifndef INCLUDED_X86_X64_MSR
+#define INCLUDED_X86_X64_MSR
+
+namespace MSR {
+
+enum ModelSpecificRegisters
+{
+	// architectural (will not change on future processors)
+	IA32_MISC_ENABLE            = 0x1A0,
+	IA32_ENERGY_PERF_BIAS       = 0x1B0,	// requires HasEnergyPerfBias
+
+	// PMU v1
+	IA32_PMC0                   = 0x0C1,
+	IA32_PERFEVTSEL0            = 0x186,
+
+	// PMU v2
+	IA32_PERF_GLOBAL_STATUS     = 0x38E,
+	IA32_PERF_GLOBAL_CTRL       = 0x38F,
+	IA32_PERF_GLOBAL_OVF_CTRL   = 0x390,
+
+	// Nehalem (requires HasNehalem)
+	PLATFORM_INFO               = 0x0CE,
+	UNCORE_PERF_GLOBAL_CTRL     = 0x391,
+	UNCORE_PERF_GLOBAL_STATUS   = 0x392,
+	UNCORE_PERF_GLOBAL_OVF_CTRL = 0x393,
+	UNCORE_PMC0                 = 0x3B0,
+	UNCORE_PERFEVTSEL0          = 0x3C0
+};
+
+LIB_API bool IsSupported();
+
+LIB_API bool HasEnergyPerfBias();
+LIB_API bool HasNehalem();
+
+LIB_API u64 Read(u64 reg);
+LIB_API void Write(u64 reg, u64 value);
+
+}	// namespace MSR
+
+#endif	// #ifndef INCLUDED_X86_X64_MSR