powerpc: Make load_hander handle upto 64k offset
If we change load_hander() to use an ori instead of addi, we can load handlers
upto 64k away provided we are still 64k aligned.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index a43c147..9258daa 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -55,7 +55,8 @@
* word.
*/
#define LOAD_HANDLER(reg, label) \
- addi reg,reg,(label)-_stext; /* virt addr of handler ... */
+ /* Handlers must be within 64K of kbase, which must be 64k aligned */ \
+ ori reg,reg,(label)-_stext; /* virt addr of handler ... */
/* Exception register prefixes */
#define EXC_HV H