patch-2.4.2 linux/include/asm-s390x/s390mach.h
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- Lines: 107
- Date:
Tue Feb 13 14:13:44 2001
- Orig file:
v2.4.1/linux/include/asm-s390x/s390mach.h
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.1/linux/include/asm-s390x/s390mach.h linux/include/asm-s390x/s390mach.h
@@ -0,0 +1,106 @@
+/*
+ * arch/s390/kernel/s390mach.h
+ * S/390 data definitions for machine check processing
+ *
+ * S390 version
+ * Copyright (C) 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 1024
+#define MAX_MACH_PENDING 1024
+
+//
+// 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 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 */
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