[ros-diffs] [ion] 24639: - Properly implement inline versions of KeGetCurrentThread and KeGetPreviousMode/ExGetPreviousMode, as well as KeGetPcr. This should significantly increase performance. (KeGetPreviousMode is reduced to 2 lines of code instead of 15 lines with 2 expensive jumps).

Author: ion
Date: Tue Oct 24 02:01:25 2006
New Revision: 24639

URL: http://svn.reactos.org/svn/reactos?rev=24639&view=rev
Log:
- Properly implement inline versions of KeGetCurrentThread and
KeGetPreviousMode/ExGetPreviousMode, as well as KeGetPcr. This should significantly
increase performance. (KeGetPreviousMode is reduced to 2 lines of code instead of 15 lines
with 2 expensive jumps).

Modified:
    trunk/reactos/include/ddk/winddk.h
    trunk/reactos/include/ndk/ketypes.h
    trunk/reactos/ntoskrnl/ex/sysinfo.c
    trunk/reactos/ntoskrnl/include/internal/ex.h
    trunk/reactos/ntoskrnl/include/internal/ke_x.h
    trunk/reactos/ntoskrnl/include/internal/ntoskrnl.h
    trunk/reactos/ntoskrnl/ke/thrdobj.c

Modified: trunk/reactos/include/ddk/winddk.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/ddk/winddk.h?rev=2…
==============================================================================
--- trunk/reactos/include/ddk/winddk.h (original)
+++ trunk/reactos/include/ddk/winddk.h Tue Oct 24 02:01:25 2006
@@ -8679,12 +8679,6 @@
   VOID);
 
 NTKERNELAPI
-KPROCESSOR_MODE
-NTAPI
-KeGetPreviousMode(
-  VOID);
-
-NTKERNELAPI
 ULONG
 NTAPI
 KeGetRecommendedSharedDataAlignment(

Modified: trunk/reactos/include/ndk/ketypes.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/ndk/ketypes.h?rev=…
==============================================================================
--- trunk/reactos/include/ndk/ketypes.h (original)
+++ trunk/reactos/include/ndk/ketypes.h Tue Oct 24 02:01:25 2006
@@ -95,7 +95,7 @@
 //
 #define K0IPCR                          ((ULONG_PTR)(KIP0PCRADDRESS))
 #define PCR                             ((volatile KPCR * const)K0IPCR)
-#ifdef _WE_USE_THE_SAME_PCR_ADDRESS
+#if !defined(CONFIG_SMP) && !defined(NT_BUILD)
 #define KeGetPcr()                      PCR
 #else
 #define KeGetPcr()                      ((volatile KPCR * const)__readfsdword(0x1C))

Modified: trunk/reactos/ntoskrnl/ex/sysinfo.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ex/sysinfo.c?rev=…
==============================================================================
--- trunk/reactos/ntoskrnl/ex/sysinfo.c (original)
+++ trunk/reactos/ntoskrnl/ex/sysinfo.c Tue Oct 24 02:01:25 2006
@@ -30,11 +30,12 @@
 /*
  * @implemented
  */
+#undef ExGetPreviousMode
 KPROCESSOR_MODE
 NTAPI
 ExGetPreviousMode (VOID)
 {
-    return (KPROCESSOR_MODE)PsGetCurrentThread()->Tcb.PreviousMode;
+    return KeGetPreviousMode();
 }
 
 /*

Modified: trunk/reactos/ntoskrnl/include/internal/ex.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/ex.h (original)
+++ trunk/reactos/ntoskrnl/include/internal/ex.h Tue Oct 24 02:01:25 2006
@@ -47,6 +47,7 @@
 #define ExInitializeRundownProtection                   _ExInitializeRundownProtection
 #define ExWaitForRundownProtectionRelease              
_ExWaitForRundownProtectionRelease
 #define ExRundownCompleted                              _ExRundownCompleted
+#define ExGetPreviousMode                               KeGetPreviousMode
 
 /* INITIALIZATION FUNCTIONS *************************************************/
 

Modified: trunk/reactos/ntoskrnl/include/internal/ke_x.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/ke_x.h (original)
+++ trunk/reactos/ntoskrnl/include/internal/ke_x.h Tue Oct 24 02:01:25 2006
@@ -1263,3 +1263,18 @@
     return Priority;
 }
 
+PRKTHREAD
+FORCEINLINE
+KeGetCurrentThread(VOID)
+{
+    /* Return the current thread */
+    return ((PKIPCR)KeGetPcr())->PrcbData.CurrentThread;
+}
+
+UCHAR
+FORCEINLINE
+KeGetPreviousMode(VOID)
+{
+    /* Return the current mode */
+    return KeGetCurrentThread()->PreviousMode;
+}

Modified: trunk/reactos/ntoskrnl/include/internal/ntoskrnl.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/ntoskrnl.h (original)
+++ trunk/reactos/ntoskrnl/include/internal/ntoskrnl.h Tue Oct 24 02:01:25 2006
@@ -16,6 +16,9 @@
 #endif
 
 #ifdef _NTOSKRNL_
+
+#define KeGetCurrentThread _KeGetCurrentThread
+#define KeGetPreviousMode _KeGetPreviousMode
 
 #include "ke.h"
 #include "i386/mm.h"

Modified: trunk/reactos/ntoskrnl/ke/thrdobj.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/thrdobj.c?rev=…
==============================================================================
--- trunk/reactos/ntoskrnl/ke/thrdobj.c (original)
+++ trunk/reactos/ntoskrnl/ke/thrdobj.c Tue Oct 24 02:01:25 2006
@@ -882,18 +882,19 @@
 KeGetCurrentThread(VOID)
 {
     /* Return the current thread on this PCR */
-    return ((PKIPCR)KeGetPcr())->PrcbData.CurrentThread;
+    return _KeGetCurrentThread();
 }
 
 /*
  * @implemented
  */
-KPROCESSOR_MODE
+#undef KeGetPreviousMode
+UCHAR
 NTAPI
 KeGetPreviousMode(VOID)
 {
     /* Return the previous mode of this thread */
-    return KeGetCurrentThread()->PreviousMode;
+    return _KeGetPreviousMode();
 }
 
 /*