[patch] asm-i386/system.h asm-x86_64/system.h

syspa (text/plain), 3.79 KB, created by Genady Okrain on 2005-03-15 00:49:19 UTC

diff -Naur --exclude='*.orig' --exclude='*.rej' linux-2.6.11.3/include/asm-i386/system.h linux-2.6.11.3~patched/include/asm-i386/system.h
--- linux-2.6.11.3/include/asm-i386/system.h	2005-03-13 08:43:59.000000000 +0200
+++ linux-2.6.11.3~patched/include/asm-i386/system.h	2005-03-13 21:43:22.291192568 +0200
@@ -244,26 +244,26 @@
 #endif
 
 static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
-				      unsigned long new, int size)
+				      unsigned long _new, int size)
 {
 	unsigned long prev;
 	switch (size) {
 	case 1:
 		__asm__ __volatile__(LOCK_PREFIX "cmpxchgb %b1,%2"
 				     : "=a"(prev)
-				     : "q"(new), "m"(*__xg(ptr)), "0"(old)
+				     : "q"(_new), "m"(*__xg(ptr)), "0"(old)
 				     : "memory");
 		return prev;
 	case 2:
 		__asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
 				     : "=a"(prev)
-				     : "q"(new), "m"(*__xg(ptr)), "0"(old)
+				     : "q"(_new), "m"(*__xg(ptr)), "0"(old)
 				     : "memory");
 		return prev;
 	case 4:
 		__asm__ __volatile__(LOCK_PREFIX "cmpxchgl %1,%2"
 				     : "=a"(prev)
-				     : "q"(new), "m"(*__xg(ptr)), "0"(old)
+				     : "q"(_new), "m"(*__xg(ptr)), "0"(old)
 				     : "memory");
 		return prev;
 	}
diff -Naur --exclude='*.orig' --exclude='*.rej' linux-2.6.11.3/include/asm-x86_64/system.h linux-2.6.11.3~patched/include/asm-x86_64/system.h
--- linux-2.6.11.3/include/asm-x86_64/system.h	2005-03-13 08:44:38.000000000 +0200
+++ linux-2.6.11.3~patched/include/asm-x86_64/system.h	2005-03-13 21:46:19.052320792 +0200
@@ -4,6 +4,32 @@
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <asm/segment.h>
+#include <linux/bitops.h> /* for LOCK_PREFIX... */
+
+/*
+ * Alternative inline assembly with input.
+ * 
+ * Pecularities:
+ * No memory clobber here. 
+ * Argument numbers start with 1.
+ * Best is to use constraints that are fixed size (like (%1) ... "r")
+ * If you use variable sized constraints like "m" or "g" in the 
+ * replacement maake sure to pad to the worst case length.
+ */
+
+#define alternative_input(oldinstr, newinstr, feature, input)		\
+	asm volatile ("661:\n\t" oldinstr "\n662:\n"			\
+		      ".section .altinstructions,\"a\"\n"		\
+		      "  .align 8\n"					\
+		      "  .quad 661b\n"            /* label */		\
+		      "  .quad 663f\n"		  /* new instruction */	\
+		      "  .byte %c0\n"             /* feature bit */	\
+		      "  .byte 662b-661b\n"       /* sourcelen */	\
+		      "  .byte 664f-663f\n"       /* replacementlen */	\
+		      ".previous\n"					\
+		      ".section .altinstr_replacement,\"ax\"\n"		\
+		      "663:\n\t" newinstr "\n664:\n"   /* replacement */ \
+		      ".previous" :: "i" (feature), input)
 
 #ifdef __KERNEL__
 
@@ -114,30 +140,6 @@
 		      ".previous" :: "i" (feature) : "memory")  
 
 /*
- * Alternative inline assembly with input.
- * 
- * Pecularities:
- * No memory clobber here. 
- * Argument numbers start with 1.
- * Best is to use constraints that are fixed size (like (%1) ... "r")
- * If you use variable sized constraints like "m" or "g" in the 
- * replacement maake sure to pad to the worst case length.
- */
-#define alternative_input(oldinstr, newinstr, feature, input...)	\
-	asm volatile ("661:\n\t" oldinstr "\n662:\n"			\
-		      ".section .altinstructions,\"a\"\n"		\
-		      "  .align 8\n"					\
-		      "  .quad 661b\n"            /* label */		\
-		      "  .quad 663f\n"		  /* new instruction */	\
-		      "  .byte %c0\n"             /* feature bit */	\
-		      "  .byte 662b-661b\n"       /* sourcelen */	\
-		      "  .byte 664f-663f\n"       /* replacementlen */	\
-		      ".previous\n"					\
-		      ".section .altinstr_replacement,\"ax\"\n"		\
-		      "663:\n\t" newinstr "\n664:\n"   /* replacement */ \
-		      ".previous" :: "i" (feature), ##input)
-
-/*
  * Clear and set 'TS' bit respectively
  */
 #define clts() __asm__ __volatile__ ("clts")