[S390] cleanup appldata.

Introduce asm header that contains the appldata data structures and
the diag inline assembly.

Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/include/asm-s390/appldata.h b/include/asm-s390/appldata.h
new file mode 100644
index 000000000000..b1770703b706
--- /dev/null
+++ b/include/asm-s390/appldata.h
@@ -0,0 +1,90 @@
+/*
+ * include/asm-s390/appldata.h
+ *
+ * Copyright (C) IBM Corp. 2006
+ *
+ * Author(s): Melissa Howland <melissah@us.ibm.com>
+ */
+
+#ifndef _ASM_S390_APPLDATA_H
+#define _ASM_S390_APPLDATA_H
+
+#include <asm/io.h>
+
+#ifndef CONFIG_64BIT
+
+#define APPLDATA_START_INTERVAL_REC     0x00    /* Function codes for */
+#define APPLDATA_STOP_REC               0x01    /* DIAG 0xDC          */
+#define APPLDATA_GEN_EVENT_REC          0x02
+#define APPLDATA_START_CONFIG_REC       0x03
+
+/*
+ * Parameter list for DIAGNOSE X'DC'
+ */
+struct appldata_parameter_list {
+        u16 diag;               /* The DIAGNOSE code X'00DC'          */
+        u8  function;           /* The function code for the DIAGNOSE */
+        u8  parlist_length;     /* Length of the parameter list       */
+        u32 product_id_addr;    /* Address of the 16-byte product ID  */
+        u16 reserved;
+        u16 buffer_length;      /* Length of the application data buffer  */
+        u32 buffer_addr;        /* Address of the application data buffer */
+} __attribute__ ((packed));
+
+#else /* CONFIG_64BIT */
+
+#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));
+
+#endif /* CONFIG_64BIT */
+
+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_product_id *id,
+                               unsigned short fn, void *buffer,
+                               unsigned short length)
+{
+        struct appldata_parameter_list parm_list;
+        int ry;
+
+        if (!MACHINE_IS_VM)
+                return -ENOSYS;
+        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);
+        asm volatile(
+                "diag %1,%0,0xdc"
+                : "=d" (ry)
+                : "d" (&parm_list), "m" (parm_list), "m" (*id)
+                : "cc");
+        return ry;
+}
+
+#endif /* _ASM_S390_APPLDATA_H */