patch-2.2.16 linux/include/asm-s390/s390mach.h

• Lines: 108
• Date: Wed Jun 7 14:26:44 2000
• Orig file: v2.2.15/linux/include/asm-s390/s390mach.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN v2.2.15/linux/include/asm-s390/s390mach.h linux/include/asm-s390/s390mach.h
@@ -0,0 +1,107 @@
+/*
+ *  arch/s390/kernel/s390mach.h
+ *   S/390 data definitions for machine check processing
+ *
+ *  S390 version
+ *    Copyright (C) 1999, 2000 IBM Deutschland Entwicklung GmbH,
+ *                             IBM Corporation
+ *    Author(s): Ingo Adlung (adlung@de.ibm.com)
+ */
+
+#ifndef __s390mach_h
+#define __s390mach_h
+
+#include <asm/types.h>
+
+typedef struct _mci {
+	__u32	to_be_defined_1 :  9;
+	__u32 cp              :  1; /* channel-report pending */
+	__u32	to_be_defined_2 : 22;
+	__u32	to_be_defined_3;
+	} mci_t;
+
+//
+// machine-check-interruption code
+//
+typedef struct _mcic {
+   union _mcc {
+      __u64 mcl;	/* machine check int. code - long info */	
+      mci_t mcd;  /* machine check int. code - details   */
+   } mcc;
+} __attribute__ ((packed)) mcic_t;
+
+//
+// Channel Report Word
+//
+typedef struct _crw {
+	__u32 res1    :  1;   /* reserved zero */
+	__u32 slct    :  1;   /* solicited */
+	__u32 oflw    :  1;   /* overflow */
+	__u32 chn     :  1;   /* chained */
+	__u32 rsc     :  4;   /* reporting source code */
+	__u32 anc     :  1;   /* ancillary report */
+	__u32 res2    :  1;   /* reserved zero */
+	__u32 erc     :  6;   /* error-recovery code */
+	__u32 rsid    : 16;   /* reporting-source ID */
+} __attribute__ ((packed)) crw_t;
+
+#define CRW_RSC_MONITOR  0x2  /* monitoring facility */
+#define CRW_RSC_SCH      0x3  /* subchannel */
+#define CRW_RSC_CPATH    0x4  /* channel path */
+#define CRW_RSC_CONFIG   0x9  /* configuration-alert facility */
+#define CRW_RSC_CSS      0xB  /* channel subsystem */
+
+#define CRW_ERC_EVENT    0x00 /* event information pending */
+#define CRW_ERC_AVAIL    0x01 /* available */
+#define CRW_ERC_INIT     0x02 /* initialized */
+#define CRW_ERC_TERROR   0x03 /* temporary error */
+#define CRW_ERC_IPARM    0x04 /* installed parm initialized */
+#define CRW_ERC_TERM     0x05 /* terminal */
+#define CRW_ERC_PERRN    0x06 /* perm. error, fac. not init */
+#define CRW_ERC_PERRI    0x07 /* perm. error, facility init */
+#define CRW_ERC_PMOD     0x08 /* installed parameters modified */
+
+#define MAX_CRW_PENDING  100
+#define MAX_MACH_PENDING 100
+
+//
+// CRW Entry
+//
+typedef struct _crwe {
+	crw_t   crw;
+	struct _crwe *crwe_next;
+} __attribute__ ((packed)) crwe_t;
+
+typedef struct _mache {
+	spinlock_t     lock;
+	unsigned int   status;
+	mcic_t         mcic;
+	union _mc {
+	   crwe_t     *crwe;		/* CRW if applicable */
+   } mc;
+	struct _mache *next;
+	struct _mache *prev;
+} mache_t;
+
+#define MCHCHK_STATUS_TO_PROCESS    0x00000001
+#define MCHCHK_STATUS_IN_PROGRESS   0x00000002
+#define MCHCHK_STATUS_WAITING       0x00000004
+
+void        s390_init_machine_check( void );
+void __init s390_do_machine_check  ( void );
+void        s390_do_crw_pending    ( crwe_t *pcrwe );
+
+extern __inline__ int stcrw( __u32 *pcrw )
+{
+        int ccode;
+
+        __asm__ __volatile__(
+                "STCRW 0(%1)\n\t"
+                "IPM %0\n\t"
+                "SRL %0,28\n\t"
+                : "=d" (ccode) : "a" (pcrw)
+                : "cc", "1" );
+        return ccode;
+}
+
+#endif /* __s390mach */