666 lines
15 KiB
C++
666 lines
15 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//===========================================================================//
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#ifdef _WIN32
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#include <windows.h>
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#pragma warning( disable : 4530 ) // warning: exception handler -GX option
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#include "tier0/valve_off.h"
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#include "tier0/pmelib.h"
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#if _MSC_VER >=1300
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#else
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#include "winioctl.h"
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#endif
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#include "tier0/valve_on.h"
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#include "tier0/ioctlcodes.h"
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// NOTE: This has to be the last file included!
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#include "tier0/memdbgon.h"
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PME* PME::_singleton = 0;
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// Single interface.
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PME* PME::Instance()
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{
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if (_singleton == 0)
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{
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_singleton = new PME;
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}
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return _singleton;
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}
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//---------------------------------------------------------------------------
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// Open the device driver and detect the processor
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//---------------------------------------------------------------------------
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HRESULT PME::Init( void )
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{
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OSVERSIONINFO OS;
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if ( bDriverOpen )
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return E_DRIVER_ALREADY_OPEN;
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switch( vendor )
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{
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case INTEL:
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case AMD:
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break;
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default:
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bDriverOpen = FALSE; // not an Intel or Athlon processor so return false
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return E_UNKNOWN_CPU_VENDOR;
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}
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//-----------------------------------------------------------------------
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// Get the operating system version
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//-----------------------------------------------------------------------
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OS.dwOSVersionInfoSize = sizeof( OSVERSIONINFO );
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GetVersionEx( &OS );
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if ( OS.dwPlatformId == VER_PLATFORM_WIN32_NT )
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{
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hFile = CreateFile( // WINDOWS NT
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"\\\\.\\GDPERF",
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GENERIC_READ,
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0,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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}
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else
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{
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hFile = CreateFile( // WINDOWS 95
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"\\\\.\\GDPERF.VXD",
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GENERIC_READ,
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0,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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}
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if (hFile == INVALID_HANDLE_VALUE )
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return E_CANT_OPEN_DRIVER;
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bDriverOpen = TRUE;
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//-------------------------------------------------------------------
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// We have successfully opened the device driver, get the family
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// of the processor.
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//-------------------------------------------------------------------
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//-------------------------------------------------------------------
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// We need to write to counter 0 on the pro family to enable both
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// of the performance counters. We write to both so they start in a
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// known state. For the pentium this is not necessary.
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//-------------------------------------------------------------------
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if (vendor == INTEL && version.Family == PENTIUMPRO_FAMILY)
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{
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SelectP5P6PerformanceEvent(P6_CLOCK, 0, TRUE, TRUE);
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SelectP5P6PerformanceEvent(P6_CLOCK, 1, TRUE, TRUE);
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}
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return S_OK;
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}
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//---------------------------------------------------------------------------
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// Close the device driver
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//---------------------------------------------------------------------------
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HRESULT PME::Close(void)
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{
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if (bDriverOpen == false) // driver is not going
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return E_DRIVER_NOT_OPEN;
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bDriverOpen = false;
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if (hFile) // if we have no driver handle, return FALSE
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{
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BOOL result = CloseHandle(hFile);
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hFile = NULL;
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return result ? S_OK : HRESULT_FROM_WIN32( GetLastError() );
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}
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else
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return E_DRIVER_NOT_OPEN;
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}
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//---------------------------------------------------------------------------
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// Select the event to monitor with counter 0
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//
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HRESULT PME::SelectP5P6PerformanceEvent(uint32 dw_event, uint32 dw_counter,
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bool b_user, bool b_kernel)
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{
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HRESULT hr = S_OK;
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if (dw_counter>1) // is the counter valid
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return E_BAD_COUNTER;
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if (bDriverOpen == false) // driver is not going
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return E_DRIVER_NOT_OPEN;
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if ( ((dw_event>>28)&0xF) != (uint32)version.Family)
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{
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return E_ILLEGAL_OPERATION; // this operation is not for this processor
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}
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if ( (((dw_event & 0x300)>>8) & (dw_counter+1)) == 0 )
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{
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return E_ILLEGAL_OPERATION; // this operation is not for this counter
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}
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switch(version.Family)
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{
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case PENTIUM_FAMILY:
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{
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uint64 i64_cesr;
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int i_kernel_bit,i_user_bit;
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BYTE u1_event = (BYTE)((dw_event & (0x3F0000))>>16);
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if (dw_counter==0) // the kernel and user mode bits depend on
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{ // counter being used.
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i_kernel_bit = 6;
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i_user_bit = 7;
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}
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else
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{
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i_kernel_bit = 22;
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i_user_bit = 23;
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}
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ReadMSR(0x11, &i64_cesr); // get current P5 event select (cesr)
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// top 32bits of cesr are not valid so ignore them
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i64_cesr &= ((dw_counter == 0)?0xffff0000:0x0000ffff);
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WriteMSR(0x11,i64_cesr); // stop the counter
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WriteMSR((dw_counter==0)?0x12:0x13,0ui64); // clear the p.counter
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// set the user and kernel mode bits
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i64_cesr |= ( b_user?(1<<7):0 ) | ( b_kernel?(1<<6):0 );
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// is this the special P5 value that signals count clocks??
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if (u1_event == 0x3f)
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{
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WriteMSR(0x11, i64_cesr|0x100); // Count clocks
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}
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else
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{
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WriteMSR(0x11, i64_cesr|u1_event); // Count events
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}
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}
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break;
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case PENTIUMPRO_FAMILY:
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{
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BYTE u1_event = (BYTE)((dw_event & (0xFF0000))>>16);
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BYTE u1_mask = (BYTE)((dw_event & 0xFF));
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// Event select 0 and 1 are identical.
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hr = WriteMSR((dw_counter==0)?0x186:0x187,
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uint64((u1_event | (b_user?(1<<16):0) | (b_kernel?(1<<17):0) | (1<<22) | (1<<18) | (u1_mask<<8)) )
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);
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}
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break;
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case PENTIUM4_FAMILY:
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// use the p4 path
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break;
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default:
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return E_UNKNOWN_CPU;
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}
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return hr;
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}
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//---------------------------------------------------------------------------
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// Read model specific register
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//---------------------------------------------------------------------------
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HRESULT PME::ReadMSR(uint32 dw_reg, int64 * pi64_value)
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{
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DWORD dw_ret_len;
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if (bDriverOpen == false) // driver is not going
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return E_DRIVER_NOT_OPEN;
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BOOL result = DeviceIoControl
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(
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hFile, // Handle to device
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(DWORD) IOCTL_READ_MSR, // IO Control code for Read
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&dw_reg, // Input Buffer to driver.
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sizeof(uint32), // Length of input buffer.
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pi64_value, // Output Buffer from driver.
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sizeof(int64), // Length of output buffer in bytes.
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&dw_ret_len, // Bytes placed in output buffer.
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NULL // NULL means wait till op. completes
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);
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HRESULT hr = result ? S_OK : HRESULT_FROM_WIN32( GetLastError() );
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if (hr == S_OK && dw_ret_len != sizeof(int64))
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hr = E_BAD_DATA;
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return hr;
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}
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HRESULT PME::ReadMSR(uint32 dw_reg, uint64 * pi64_value)
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{
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DWORD dw_ret_len;
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if (bDriverOpen == false) // driver is not going
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return E_DRIVER_NOT_OPEN;
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BOOL result = DeviceIoControl
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(
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hFile, // Handle to device
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(DWORD) IOCTL_READ_MSR, // IO Control code for Read
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&dw_reg, // Input Buffer to driver.
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sizeof(uint32), // Length of input buffer.
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pi64_value, // Output Buffer from driver.
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sizeof(uint64), // Length of output buffer in bytes.
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&dw_ret_len, // Bytes placed in output buffer.
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NULL // NULL means wait till op. completes
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);
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HRESULT hr = result ? S_OK : HRESULT_FROM_WIN32( GetLastError() );
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if (hr == S_OK && dw_ret_len != sizeof(uint64))
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hr = E_BAD_DATA;
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return hr;
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}
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//---------------------------------------------------------------------------
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// Write model specific register
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//---------------------------------------------------------------------------
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HRESULT PME::WriteMSR(uint32 dw_reg, const int64 & i64_value)
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{
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DWORD dw_buffer[3];
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DWORD dw_ret_len;
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if (bDriverOpen == false) // driver is not going
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return E_DRIVER_NOT_OPEN;
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dw_buffer[0] = dw_reg; // setup the 12 byte input
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*((int64*)(&dw_buffer[1]))= i64_value;
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BOOL result = DeviceIoControl
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(
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hFile, // Handle to device
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(DWORD) IOCTL_WRITE_MSR, // IO Control code for Read
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dw_buffer, // Input Buffer to driver.
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12, // Length of Input buffer
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NULL, // Buffer from driver, None for WRMSR
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0, // Length of output buffer in bytes.
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&dw_ret_len, // Bytes placed in DataBuffer.
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NULL // NULL means wait till op. completes.
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);
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HRESULT hr = result ? S_OK : HRESULT_FROM_WIN32( GetLastError() );
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if (hr == S_OK && dw_ret_len != 0)
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hr = E_BAD_DATA;
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return hr;
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}
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HRESULT PME::WriteMSR(uint32 dw_reg, const uint64 & i64_value)
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{
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DWORD dw_buffer[3];
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DWORD dw_ret_len;
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if (bDriverOpen == false) // driver is not going
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return E_DRIVER_NOT_OPEN;
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dw_buffer[0] = dw_reg; // setup the 12 byte input
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*((uint64*)(&dw_buffer[1]))= i64_value;
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BOOL result = DeviceIoControl
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(
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hFile, // Handle to device
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(DWORD) IOCTL_WRITE_MSR, // IO Control code for Read
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dw_buffer, // Input Buffer to driver.
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12, // Length of Input buffer
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NULL, // Buffer from driver, None for WRMSR
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0, // Length of output buffer in bytes.
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&dw_ret_len, // Bytes placed in DataBuffer.
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NULL // NULL means wait till op. completes.
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);
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//E_POINTER
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HRESULT hr = result ? S_OK : HRESULT_FROM_WIN32( GetLastError() );
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if (hr == S_OK && dw_ret_len != 0)
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hr = E_BAD_DATA;
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return hr;
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}
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#pragma hdrstop
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//---------------------------------------------------------------------------
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// Return the frequency of the processor in Hz.
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//
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double PME::GetCPUClockSpeedFast(void)
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{
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int64 i64_perf_start, i64_perf_freq, i64_perf_end;
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int64 i64_clock_start,i64_clock_end;
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double d_loop_period, d_clock_freq;
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//-----------------------------------------------------------------------
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// Query the performance of the Windows high resolution timer.
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//-----------------------------------------------------------------------
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QueryPerformanceFrequency((LARGE_INTEGER*)&i64_perf_freq);
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//-----------------------------------------------------------------------
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// Query the current value of the Windows high resolution timer.
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//-----------------------------------------------------------------------
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QueryPerformanceCounter((LARGE_INTEGER*)&i64_perf_start);
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i64_perf_end = 0;
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//-----------------------------------------------------------------------
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// Time of loop of 250000 windows cycles with RDTSC
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//-----------------------------------------------------------------------
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RDTSC(i64_clock_start);
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while(i64_perf_end<i64_perf_start+250000)
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{
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QueryPerformanceCounter((LARGE_INTEGER*)&i64_perf_end);
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}
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RDTSC(i64_clock_end);
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//-----------------------------------------------------------------------
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// Caclulate the frequency of the RDTSC timer and therefore calculate
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// the frequency of the processor.
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//-----------------------------------------------------------------------
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i64_clock_end -= i64_clock_start;
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d_loop_period = ((double)(i64_perf_freq)) / 250000.0;
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d_clock_freq = ((double)(i64_clock_end & 0xffffffff))*d_loop_period;
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return (float)d_clock_freq;
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}
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// takes 1 second
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double PME::GetCPUClockSpeedSlow(void)
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{
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if (m_CPUClockSpeed != 0)
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return m_CPUClockSpeed;
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unsigned long start_ms, stop_ms;
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unsigned long start_tsc,stop_tsc;
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// boosting priority helps with noise. its optional and i dont think
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// it helps all that much
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PME * pme = PME::Instance();
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pme->SetProcessPriority(ProcessPriorityHigh);
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// wait for millisecond boundary
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start_ms = GetTickCount() + 5;
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while (start_ms <= GetTickCount());
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// read timestamp (you could use QueryPerformanceCounter in hires mode if you want)
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#ifdef COMPILER_MSVC64
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RDTSC(start_tsc);
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#else
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__asm
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{
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rdtsc
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mov dword ptr [start_tsc+0],eax
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mov dword ptr [start_tsc+4],edx
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}
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#endif
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// wait for end
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stop_ms = start_ms + 1000; // longer wait gives better resolution
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while (stop_ms > GetTickCount());
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// read timestamp (you could use QueryPerformanceCounter in hires mode if you want)
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#ifdef COMPILER_MSVC64
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RDTSC(stop_tsc);
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#else
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__asm
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{
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rdtsc
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mov dword ptr [stop_tsc+0],eax
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mov dword ptr [stop_tsc+4],edx
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}
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#endif
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// normalize priority
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pme->SetProcessPriority(ProcessPriorityNormal);
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// return clock speed
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// optionally here you could round to known clocks, like speeds that are multimples
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// of 100, 133, 166, etc.
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m_CPUClockSpeed = ((stop_tsc - start_tsc) * 1000.0) / (double)(stop_ms - start_ms);
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return m_CPUClockSpeed;
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}
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const unsigned short cccr_escr_map[NCOUNTERS][8] =
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{
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{
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0x3B2,
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0x3B4,
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0x3AA,
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0x3B6,
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0x3AC,
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0x3C8,
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0x3A2,
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0x3A0,
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},
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{
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0x3B2,
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0x3B4,
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0x3AA,
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0x3B6,
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0x3AC,
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0x3C8,
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0x3A2,
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0x3A0,
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},
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{
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0x3B3,
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0x3B5,
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0x3AB,
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0x3B7,
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0x3AD,
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0x3C9,
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0x3A3,
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0x3A1,
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},
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{
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0x3B3,
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0x3B5,
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0x3AB,
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0x3B7,
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0x3AD,
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0x3C9,
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0x3A3,
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0x3A1,
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},
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{
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0x3C0,
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0x3C4,
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0x3C2,
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},
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{
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0x3C0,
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0x3C4,
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0x3C2,
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},
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{
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0x3C1,
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0x3C5,
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0x3C3,
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},
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{
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0x3C1,
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0x3C5,
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0x3C3,
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},
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{
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0x3A6,
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0x3A4,
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0x3AE,
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0x3B0,
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0,
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0x3A8,
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},
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{
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0x3A6,
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0x3A4,
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0x3AE,
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0x3B0,
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0,
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0x3A8,
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},
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{
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0x3A7,
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0x3A5,
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0x3AF,
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0x3B1,
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0,
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0x3A9,
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},
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{
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0x3A7,
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0x3A5,
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0x3AF,
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0x3B1,
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0,
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0x3A9,
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},
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{
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0x3BA,
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0x3CA,
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0x3BC,
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0x3BE,
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0x3B8,
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0x3CC,
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0x3E0,
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},
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{
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0x3BA,
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0x3CA,
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0x3BC,
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0x3BE,
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0x3B8,
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0x3CC,
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0x3E0,
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},
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{
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0x3BB,
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|
0x3CB,
|
|
0x3BD,
|
|
0,
|
|
0x3B9,
|
|
0x3CD,
|
|
0x3E1,
|
|
},
|
|
{
|
|
|
|
|
|
0x3BB,
|
|
0x3CB,
|
|
0x3BD,
|
|
0,
|
|
0x3B9,
|
|
0x3CD,
|
|
0x3E1,
|
|
},
|
|
{
|
|
0x3BA,
|
|
0x3CA,
|
|
0x3BC,
|
|
0x3BE,
|
|
0x3B8,
|
|
0x3CC,
|
|
0x3E0,
|
|
},
|
|
{
|
|
|
|
0x3BB,
|
|
0x3CB,
|
|
0x3BD,
|
|
0,
|
|
0x3B9,
|
|
0x3CD,
|
|
0x3E1,
|
|
},
|
|
};
|
|
|
|
#ifdef DBGFLAG_VALIDATE
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Ensure that all of our internal structures are consistent, and
|
|
// account for all memory that we've allocated.
|
|
// Input: validator - Our global validator object
|
|
// pchName - Our name (typically a member var in our container)
|
|
//-----------------------------------------------------------------------------
|
|
void PME::Validate( CValidator &validator, tchar *pchName )
|
|
{
|
|
validator.Push( _T("PME"), this, pchName );
|
|
|
|
validator.ClaimMemory( this );
|
|
|
|
validator.ClaimMemory( cache );
|
|
|
|
validator.ClaimMemory( ( void * ) vendor_name.c_str( ) );
|
|
validator.ClaimMemory( ( void * ) brand.c_str( ) );
|
|
|
|
validator.Pop( );
|
|
}
|
|
#endif // DBGFLAG_VALIDATE
|
|
|
|
#pragma warning( default : 4530 ) // warning: exception handler -GX option
|
|
#endif
|
|
|