diag.h

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/*
 * s390 diagnose functions
 *
 * Copyright IBM Corp. 2007
 * Author(s): Michael Holzheu <[email protected]>
 */

#ifndef _ASM_S390_DIAG_H
#define _ASM_S390_DIAG_H

/*
 * Diagnose 10: Release page range
 */
static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
{
    unsigned long start_addr, end_addr;

    start_addr = start_pfn << PAGE_SHIFT;
    end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT;

    asm volatile(
        "0: diag    %0,%1,0x10\n"
        "1:\n"
        EX_TABLE(0b, 1b)
        EX_TABLE(1b, 1b)
        : : "a" (start_addr), "a" (end_addr));
}

/*
 * Diagnose 14: Input spool file manipulation
 */
extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);

/*
 * Diagnose 210: Get information about a virtual device
 */
struct diag210 {
    u16 vrdcdvno;   /* device number (input) */
    u16 vrdclen;    /* data block length (input) */
    u8 vrdcvcla;    /* virtual device class (output) */
    u8 vrdcvtyp;    /* virtual device type (output) */
    u8 vrdcvsta;    /* virtual device status (output) */
    u8 vrdcvfla;    /* virtual device flags (output) */
    u8 vrdcrccl;    /* real device class (output) */
    u8 vrdccrty;    /* real device type (output) */
    u8 vrdccrmd;    /* real device model (output) */
    u8 vrdccrft;    /* real device feature (output) */
} __attribute__((packed, aligned(4)));

extern int diag210(struct diag210 *addr);

#endif /* _ASM_S390_DIAG_H */