[POWERPC] Improve MPIC driver auto-configuration from DT

[karo-tx-linux.git] / include / asm-powerpc / io.h

diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index 3baff8b0fd5add68cb7dfde5e1324ac182a7801e..c2c5f14b5f5ff3dd8c335cf4025d3c34096f58a1 100644 (file)
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -163,8 +163,11 @@ extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count);
 
 static inline void mmiowb(void)
 {
-       __asm__ __volatile__ ("sync" : : : "memory");
-       get_paca()->io_sync = 0;
+       unsigned long tmp;
+
+       __asm__ __volatile__("sync; li %0,0; stb %0,%1(13)"
+       : "=&r" (tmp) : "i" (offsetof(struct paca_struct, io_sync))
+       : "memory");
 }
 
 /*