2 * Implementation of s390 diagnose codes
4 * Copyright IBM Corp. 2007
5 * Author(s): Michael Holzheu <holzheu@de.ibm.com>
8 #include <linux/module.h>
12 * Diagnose 14: Input spool file manipulation
14 int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode)
16 register unsigned long _ry1 asm("2") = ry1;
17 register unsigned long _ry2 asm("3") = subcode;
26 : "=d" (rc), "+d" (_ry2)
27 : "d" (rx), "d" (_ry1)
32 EXPORT_SYMBOL(diag14);
35 * Diagnose 210: Get information about a virtual device
37 int diag210(struct diag210 *addr)
40 * diag 210 needs its data below the 2GB border, so we
41 * use a static data area to be sure
43 static struct diag210 diag210_tmp;
44 static DEFINE_SPINLOCK(diag210_lock);
48 spin_lock_irqsave(&diag210_lock, flags);
59 : "=&d" (ccode) : "a" (&diag210_tmp) : "cc", "memory");
62 spin_unlock_irqrestore(&diag210_lock, flags);
66 EXPORT_SYMBOL(diag210);