X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-powerpc%2Fcode-patching.h;h=107d9b915e33e9559f14357a2e4f55cf3f857e82;hb=28fd6d7f953711fbf67496701be05513052d967d;hp=fdb187cbc40d8f6d6df84c6a932917bec714fe5a;hpb=e7a57273c6407bb6903fbaddec8c2119bf318617;p=linux-2.6-omap-h63xx.git

diff --git a/include/asm-powerpc/code-patching.h b/include/asm-powerpc/code-patching.h
index fdb187cbc40..107d9b915e3 100644
--- a/include/asm-powerpc/code-patching.h
+++ b/include/asm-powerpc/code-patching.h
@@ -10,6 +10,11 @@
  * 2 of the License, or (at your option) any later version.
  */
 
+#include <asm/types.h>
+
+#define PPC_NOP_INSTR		0x60000000
+#define PPC_LWSYNC_INSTR	0x7c2004ac
+
 /* Flags for create_branch:
  * "b"   == create_branch(addr, target, 0);
  * "ba"  == create_branch(addr, target, BRANCH_ABSOLUTE);
@@ -21,7 +26,29 @@
 
 unsigned int create_branch(const unsigned int *addr,
 			   unsigned long target, int flags);
+unsigned int create_cond_branch(const unsigned int *addr,
+				unsigned long target, int flags);
 void patch_branch(unsigned int *addr, unsigned long target, int flags);
 void patch_instruction(unsigned int *addr, unsigned int instr);
 
+int instr_is_relative_branch(unsigned int instr);
+int instr_is_branch_to_addr(const unsigned int *instr, unsigned long addr);
+unsigned long branch_target(const unsigned int *instr);
+unsigned int translate_branch(const unsigned int *dest,
+			      const unsigned int *src);
+
+static inline unsigned long ppc_function_entry(void *func)
+{
+#ifdef CONFIG_PPC64
+	/*
+	 * On PPC64 the function pointer actually points to the function's
+	 * descriptor. The first entry in the descriptor is the address
+	 * of the function text.
+	 */
+	return ((func_descr_t *)func)->entry;
+#else
+	return (unsigned long)func;
+#endif
+}
+
 #endif /* _ASM_POWERPC_CODE_PATCHING_H */