sh4 support

[fio.git] / arch / arch-ia64.h

diff --git a/arch/arch-ia64.h b/arch/arch-ia64.h
index 9c8b406c1bc3e29bd495f0c5cab699e4e583203a..a8bb23a3bca6229d8fb2ca7d3d703e1c578d3c97 100644 (file)
--- a/arch/arch-ia64.h
+++ b/arch/arch-ia64.h
@@ -20,5 +20,19 @@
 
 #define nop            asm volatile ("hint @pause" ::: "memory");
 #define read_barrier() asm volatile ("mf" ::: "memory")
+#define write_barrier()        asm volatile ("mf" ::: "memory")
+
+#define ia64_popcnt(x)                                                 \
+({                                                                     \
+       unsigned long ia64_intri_res;                                   \
+       asm ("popcnt %0=%1" : "=r" (ia64_intri_res) : "r" (x));         \
+       ia64_intri_res;                                                 \
+})
+
+static inline unsigned long arch_ffz(unsigned long bitmask)
+{
+       return ia64_popcnt(bitmask & (~bitmask - 1));
+}
+#define ARCH_HAVE_FFZ
 
 #endif