1 files changed, 72 insertions, 0 deletions
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
new file mode 100644
index 0000000000..edee63da08
--- /dev/null
+++ b/arch/s390/include/asm/sigp.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __S390_ASM_SIGP_H
+#define __S390_ASM_SIGP_H
+
+/* SIGP order codes */
+#define SIGP_SENSE		      1
+#define SIGP_EXTERNAL_CALL	      2
+#define SIGP_EMERGENCY_SIGNAL	      3
+#define SIGP_START		      4
+#define SIGP_STOP		      5
+#define SIGP_RESTART		      6
+#define SIGP_STOP_AND_STORE_STATUS    9
+#define SIGP_INITIAL_CPU_RESET	     11
+#define SIGP_CPU_RESET		     12
+#define SIGP_SET_PREFIX		     13
+#define SIGP_STORE_STATUS_AT_ADDRESS 14
+#define SIGP_SET_ARCHITECTURE	     18
+#define SIGP_COND_EMERGENCY_SIGNAL   19
+#define SIGP_SENSE_RUNNING	     21
+#define SIGP_SET_MULTI_THREADING     22
+#define SIGP_STORE_ADDITIONAL_STATUS 23
+
+/* SIGP condition codes */
+#define SIGP_CC_ORDER_CODE_ACCEPTED 0
+#define SIGP_CC_STATUS_STORED	    1
+#define SIGP_CC_BUSY		    2
+#define SIGP_CC_NOT_OPERATIONAL	    3
+
+/* SIGP cpu status bits */
+
+#define SIGP_STATUS_INVALID_ORDER	0x00000002UL
+#define SIGP_STATUS_CHECK_STOP		0x00000010UL
+#define SIGP_STATUS_STOPPED		0x00000040UL
+#define SIGP_STATUS_EXT_CALL_PENDING	0x00000080UL
+#define SIGP_STATUS_INVALID_PARAMETER	0x00000100UL
+#define SIGP_STATUS_INCORRECT_STATE	0x00000200UL
+#define SIGP_STATUS_NOT_RUNNING		0x00000400UL
+
+#ifndef __ASSEMBLY__
+
+static inline int ____pcpu_sigp(u16 addr, u8 order, unsigned long parm,
+				u32 *status)
+{
+	union register_pair r1 = { .odd = parm, };
+	int cc;
+
+	asm volatile(
+		"	sigp	%[r1],%[addr],0(%[order])\n"
+		"	ipm	%[cc]\n"
+		"	srl	%[cc],28\n"
+		: [cc] "=&d" (cc), [r1] "+&d" (r1.pair)
+		: [addr] "d" (addr), [order] "a" (order)
+		: "cc");
+	*status = r1.even;
+	return cc;
+}
+
+static inline int __pcpu_sigp(u16 addr, u8 order, unsigned long parm,
+			      u32 *status)
+{
+	u32 _status;
+	int cc;
+
+	cc = ____pcpu_sigp(addr, order, parm, &_status);
+	if (status && cc == SIGP_CC_STATUS_STORED)
+		*status = _status;
+	return cc;
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __S390_ASM_SIGP_H */