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-rw-r--r--arch/s390/include/asm/appldata.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/s390/include/asm/appldata.h b/arch/s390/include/asm/appldata.h
new file mode 100644
index 0000000000..f2240392c7
--- /dev/null
+++ b/arch/s390/include/asm/appldata.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright IBM Corp. 2006
+ *
+ * Author(s): Melissa Howland <melissah@us.ibm.com>
+ */
+
+#ifndef _ASM_S390_APPLDATA_H
+#define _ASM_S390_APPLDATA_H
+
+#include <linux/io.h>
+#include <asm/diag.h>
+
+#define APPLDATA_START_INTERVAL_REC 0x80
+#define APPLDATA_STOP_REC 0x81
+#define APPLDATA_GEN_EVENT_REC 0x82
+#define APPLDATA_START_CONFIG_REC 0x83
+
+/*
+ * Parameter list for DIAGNOSE X'DC'
+ */
+struct appldata_parameter_list {
+ u16 diag;
+ u8 function;
+ u8 parlist_length;
+ u32 unused01;
+ u16 reserved;
+ u16 buffer_length;
+ u32 unused02;
+ u64 product_id_addr;
+ u64 buffer_addr;
+} __attribute__ ((packed));
+
+struct appldata_product_id {
+ char prod_nr[7]; /* product number */
+ u16 prod_fn; /* product function */
+ u8 record_nr; /* record number */
+ u16 version_nr; /* version */
+ u16 release_nr; /* release */
+ u16 mod_lvl; /* modification level */
+} __attribute__ ((packed));
+
+
+static inline int appldata_asm(struct appldata_parameter_list *parm_list,
+ struct appldata_product_id *id,
+ unsigned short fn, void *buffer,
+ unsigned short length)
+{
+ int ry;
+
+ if (!MACHINE_IS_VM)
+ return -EOPNOTSUPP;
+ parm_list->diag = 0xdc;
+ parm_list->function = fn;
+ parm_list->parlist_length = sizeof(*parm_list);
+ parm_list->buffer_length = length;
+ parm_list->product_id_addr = (unsigned long) id;
+ parm_list->buffer_addr = virt_to_phys(buffer);
+ diag_stat_inc(DIAG_STAT_X0DC);
+ asm volatile(
+ " diag %1,%0,0xdc"
+ : "=d" (ry)
+ : "d" (parm_list), "m" (*parm_list), "m" (*id)
+ : "cc");
+ return ry;
+}
+
+#endif /* _ASM_S390_APPLDATA_H */