forked from Minki/linux
b5a6b71b19
To be able to analyse problems in regard to hypervisor overhead
add a tracepoing for diagnose calls. It reports the number of
the diagnose issued, e.g.
sshd-1385 [002] .... 42.701431: diagnose: nr=0x9c
<idle>-0 [001] ..s. 43.587528: diagnose: nr=0x9c
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
/*
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* s390 diagnose functions
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*
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* Copyright IBM Corp. 2007
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* Author(s): Michael Holzheu <holzheu@de.ibm.com>
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*/
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#ifndef _ASM_S390_DIAG_H
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#define _ASM_S390_DIAG_H
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#include <linux/percpu.h>
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enum diag_stat_enum {
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DIAG_STAT_X008,
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DIAG_STAT_X00C,
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DIAG_STAT_X010,
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DIAG_STAT_X014,
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DIAG_STAT_X044,
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DIAG_STAT_X064,
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DIAG_STAT_X09C,
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DIAG_STAT_X0DC,
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DIAG_STAT_X204,
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DIAG_STAT_X210,
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DIAG_STAT_X224,
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DIAG_STAT_X250,
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DIAG_STAT_X258,
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DIAG_STAT_X288,
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DIAG_STAT_X2C4,
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DIAG_STAT_X2FC,
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DIAG_STAT_X304,
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DIAG_STAT_X308,
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DIAG_STAT_X500,
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NR_DIAG_STAT
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};
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void diag_stat_inc(enum diag_stat_enum nr);
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void diag_stat_inc_norecursion(enum diag_stat_enum nr);
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/*
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* Diagnose 10: Release page range
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*/
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static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
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{
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unsigned long start_addr, end_addr;
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start_addr = start_pfn << PAGE_SHIFT;
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end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT;
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diag_stat_inc(DIAG_STAT_X010);
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asm volatile(
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"0: diag %0,%1,0x10\n"
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"1:\n"
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EX_TABLE(0b, 1b)
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EX_TABLE(1b, 1b)
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: : "a" (start_addr), "a" (end_addr));
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}
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/*
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* Diagnose 14: Input spool file manipulation
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*/
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extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
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/*
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* Diagnose 210: Get information about a virtual device
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*/
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struct diag210 {
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u16 vrdcdvno; /* device number (input) */
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u16 vrdclen; /* data block length (input) */
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u8 vrdcvcla; /* virtual device class (output) */
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u8 vrdcvtyp; /* virtual device type (output) */
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u8 vrdcvsta; /* virtual device status (output) */
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u8 vrdcvfla; /* virtual device flags (output) */
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u8 vrdcrccl; /* real device class (output) */
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u8 vrdccrty; /* real device type (output) */
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u8 vrdccrmd; /* real device model (output) */
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u8 vrdccrft; /* real device feature (output) */
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} __attribute__((packed, aligned(4)));
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extern int diag210(struct diag210 *addr);
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#endif /* _ASM_S390_DIAG_H */
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