ChangeLog:
- Move performance frequency code to misc/cpu.c
- New function, get_cpu_speed()
- Make MHz registry key and QueryPerformanceFrequency use it
Index: win32/newfns.c
===================================================================
RCS file: /home/wine/wine/win32/newfns.c,v
retrieving revision 1.47
diff -u -r1.47 newfns.c
--- win32/newfns.c 22 May 2003 03:41:27 -0000 1.47
+++ win32/newfns.c 4 Jul 2003 18:37:56 -0000
@@ -45,117 +45,6 @@
WINE_DECLARE_DEBUG_CHANNEL(debug);
-static BOOL QUERYPERF_Initialized = 0;
-#if defined(__i386__) && defined(__GNUC__)
-static BOOL QUERYPERF_RDTSC_Use = 0;
-static LONGLONG QUERYPERF_RDTSC_Frequency = 0;
-#endif
-
-static void QUERYPERF_Init(void)
-{
-#if defined(__i386__) && defined(__GNUC__)
- /* We are running on i386 and compiling on GCC.
- * Do a runtime check to see if we have the rdtsc instruction available
- */
- FILE *fp;
- char line[256], *s, *value;
- double cpuMHz;
-
- TRACE("()\n");
-
- if (IsProcessorFeaturePresent( PF_RDTSC_INSTRUCTION_AVAILABLE ))
- {
- /* rdtsc is available. However, in order to use it
- * we also need to be able to get the processor's
- * speed. Currently we do this by reading /proc/cpuinfo
- * which makes it Linux-specific.
- */
-
- TRACE("rdtsc available\n");
-
- fp = fopen( "/proc/cpuinfo", "r" );
- if (fp)
- {
- while(fgets( line, sizeof(line), fp ))
- {
- /* NOTE: the ':' is the only character we can rely on */
- if (!(value = strchr( line, ':' )))
- continue;
-
- /* terminate the valuename */
- *value++ = '\0';
- /* skip any leading spaces */
- while (*value == ' ') value++;
- if ((s = strchr( value, '\n' )))
- *s = '\0';
-
- if (!strncasecmp( line, "cpu MHz", strlen( "cpu MHz" ) ))
- {
- if (sscanf( value, "%lf", &cpuMHz ) == 1)
- {
- QUERYPERF_RDTSC_Frequency = (LONGLONG)(cpuMHz * 1000000.0);
- QUERYPERF_RDTSC_Use = TRUE;
- TRACE("using frequency: %lldHz\n", QUERYPERF_RDTSC_Frequency);
- break;
- }
- }
- }
- fclose(fp);
- }
- }
-#endif
- QUERYPERF_Initialized = TRUE;
-}
-
-
-/****************************************************************************
- * QueryPerformanceCounter (KERNEL32.@)
- */
-BOOL WINAPI QueryPerformanceCounter(PLARGE_INTEGER counter)
-{
- struct timeval tv;
-
- if (!QUERYPERF_Initialized)
- QUERYPERF_Init();
-
-#if defined(__i386__) && defined(__GNUC__)
- if (QUERYPERF_RDTSC_Use)
- {
- /* i586 optimized version */
- __asm__ __volatile__ ( "rdtsc"
- : "=a" (counter->s.LowPart), "=d" (counter->s.HighPart) );
- return TRUE;
- }
- /* fall back to generic routine (ie, for i386, i486) */
-#endif
-
- /* generic routine */
- gettimeofday( &tv, NULL );
- counter->QuadPart = (LONGLONG)tv.tv_usec + (LONGLONG)tv.tv_sec * 1000000;
- return TRUE;
-}
-
-/****************************************************************************
- * QueryPerformanceFrequency (KERNEL32.@)
- */
-BOOL WINAPI QueryPerformanceFrequency(PLARGE_INTEGER frequency)
-{
- if (!QUERYPERF_Initialized)
- QUERYPERF_Init();
-
-#if defined(__i386__) && defined(__GNUC__)
- if (QUERYPERF_RDTSC_Use)
- {
- frequency->QuadPart = QUERYPERF_RDTSC_Frequency;
- return TRUE;
- }
-#endif
-
- frequency->s.LowPart = 1000000;
- frequency->s.HighPart = 0;
- return TRUE;
-}
-
/****************************************************************************
* FlushInstructionCache (KERNEL32.@)
*/
Index: misc/cpu.c
===================================================================
RCS file: /home/wine/wine/misc/cpu.c,v
retrieving revision 1.34
diff -u -r1.34 cpu.c
--- misc/cpu.c 30 Jun 2003 18:28:08 -0000 1.34
+++ misc/cpu.c 4 Jul 2003 18:37:57 -0000
@@ -36,6 +36,10 @@
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
@@ -90,6 +94,48 @@
#endif
}
+static LONGLONG get_cpu_speed() {
+
+#ifdef linux
+ FILE *fp;
+ char line[256], *s, *value;
+ double cpuMHz;
+
+ fp = fopen( "/proc/cpuinfo", "r" );
+ if (fp) {
+ while(fgets( line, sizeof(line), fp )) {
+ /* NOTE: the ':' is the only character we can rely on */
+ if (!(value = strchr( line, ':' )))
+ continue;
+
+ /* terminate the valuename */
+ *value++ = '\0';
+ /* skip any leading spaces */
+ while (*value == ' ') value++;
+ if ((s = strchr( value, '\n' )))
+ *s = '\0';
+
+ if (!strncasecmp( line, "cpu MHz", strlen( "cpu MHz" ) )) {
+ if (sscanf( value, "%lf", &cpuMHz ) == 1) {
+ LONGLONG res = (LONGLONG)(cpuMHz * 1000000.0);
+
+ TRACE("frequency retrieved as: %lldHz\n", res);
+ fclose(fp);
+ return res;
+ }
+ }
+ }
+ fclose(fp);
+ }
+ ERR("Could not locate CPU speed in /proc/cpuinfo, please report to http://bugs.winehq.com/ with the contents of that file\n");
+ ERR("Defaulting to 1000Mhz\n");
+#endif
+
+ /* either a fault or we're not on linux */
+ return 1000000000;
+}
+
+
static BYTE PF[64] = {0,};
static void create_registry_keys( const SYSTEM_INFO *info )
@@ -102,6 +148,7 @@
static const WCHAR cpuW[] = {'C','e','n','t','r','a','l','P','r','o','c','e','s','s','o','r',0};
static const WCHAR IdentifierW[] = {'I','d','e','n','t','i','f','i','e','r',0};
static const WCHAR SysidW[] = {'A','T',' ','c','o','m','p','a','t','i','b','l','e',0};
+ static const WCHAR mhzKeyW[] = {'~','M','H','z',0};
int i;
HKEY hkey, system_key, cpu_key;
@@ -130,7 +177,7 @@
{
for (i = 0; i < info->dwNumberOfProcessors; i++)
{
- char num[10], id[20];
+ char num[10], id[20];
attr.RootDirectory = cpu_key;
sprintf( num, "%d", i );
@@ -138,10 +185,15 @@
if (!NtCreateKey( &hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ))
{
WCHAR idW[20];
+ DWORD speed = get_cpu_speed() / 1000;
sprintf( id, "CPU %ld", info->dwProcessorType );
RtlMultiByteToUnicodeN( idW, sizeof(idW), NULL, id, strlen(id)+1 );
NtSetValueKey( hkey, &valueW, 0, REG_SZ, idW, (strlenW(idW)+1)*sizeof(WCHAR) );
+
+ RtlFreeUnicodeString( &valueW );
+ RtlInitUnicodeString( &valueW, mhzKeyW);
+ NtSetValueKey( hkey, &valueW, 0, REG_DWORD, &speed, sizeof(DWORD) );
NtClose( hkey );
}
RtlFreeUnicodeString( &nameW );
@@ -151,6 +203,52 @@
NtClose( system_key );
}
+/****************************************************************************
+ * QueryPerformanceCounter (KERNEL32.@)
+ */
+BOOL WINAPI QueryPerformanceCounter(PLARGE_INTEGER counter)
+{
+ struct timeval tv;
+
+#if defined(__i386__) && defined(__GNUC__)
+ if (IsProcessorFeaturePresent( PF_RDTSC_INSTRUCTION_AVAILABLE )) {
+ /* i586 optimized version */
+ __asm__ __volatile__ ( "rdtsc"
+ : "=a" (counter->s.LowPart), "=d" (counter->s.HighPart) );
+ return TRUE;
+ }
+#endif
+
+ /* fall back to generic routine (ie, for i386, i486) */
+ gettimeofday( &tv, NULL );
+ counter->QuadPart = (LONGLONG)tv.tv_usec + (LONGLONG)tv.tv_sec * 1000000;
+ return TRUE;
+}
+
+
+/****************************************************************************
+ * QueryPerformanceFrequency (KERNEL32.@)
+ */
+BOOL WINAPI QueryPerformanceFrequency(PLARGE_INTEGER frequency)
+{
+
+#if defined(__i386__) && defined(__GNUC__) && 0
+ if (IsProcessorFeaturePresent( PF_RDTSC_INSTRUCTION_AVAILABLE )) {
+ /* The way Windows calculates this value is unclear, however simply using the CPU frequency
+ gives a value out by approximately a thousand. That can cause some applications to crash,
+ so we divide here to make our number more similar to the one Windows gives */
+ frequency->QuadPart = get_cpu_speed() / 1000;
+ TRACE("returning %lld\n", frequency->QuadPart);
+ return TRUE;
+ }
+#endif
+
+ frequency->s.LowPart = 1000000;
+ frequency->s.HighPart = 0;
+ TRACE("returning %lld\n", frequency->QuadPart);
+ return TRUE;
+}
+
/***********************************************************************
* GetSystemInfo [KERNEL32.@]
