s390: add SMT support

[linux-2.6-block.git] / arch / s390 / include / asm / cpu_mf.h

diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index cb700d54bd832a91256803b35bbff06adc3a95d3..5243a8679a1dcb7cc69037714fabba64c652dcf1 100644 (file)
--- a/arch/s390/include/asm/cpu_mf.h
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -189,6 +189,20 @@ static inline int ecctr(u64 ctr, u64 *val)
        return cc;
 }
 
+/* Store CPU counter multiple for the MT utilization counter set */
+static inline int stcctm5(u64 num, u64 *val)
+{
+       typedef struct { u64 _[num]; } addrtype;
+       int cc;
+
+       asm volatile (
+               "       .insn   rsy,0xeb0000000017,%2,5,%1\n"
+               "       ipm     %0\n"
+               "       srl     %0,28\n"
+               : "=d" (cc), "=Q" (*(addrtype *) val)  : "d" (num) : "cc");
+       return cc;
+}
+
 /* Query sampling information */
 static inline int qsi(struct hws_qsi_info_block *info)
 {