Merge branch 'pm-qos'

[firefly-linux-kernel-4.4.55.git] / arch / arm / include / asm / assembler.h

diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 03fb93621d0d6046b7b416c9c4328437380fd843..5c8b3bf4d8252f1013af6fea25848ce9c41dcfeb 100644 (file)
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -320,4 +320,12 @@
        .size \name , . - \name
        .endm
 
+       .macro check_uaccess, addr:req, size:req, limit:req, tmp:req, bad:req
+#ifndef CONFIG_CPU_USE_DOMAINS
+       adds    \tmp, \addr, #\size - 1
+       sbcccs  \tmp, \tmp, \limit
+       bcs     \bad
+#endif
+       .endm
+
 #endif /* __ASM_ASSEMBLER_H__ */