1 /* 2 * s390 diagnose functions 3 * 4 * Copyright IBM Corp. 2007 5 * Author(s): Michael Holzheu <holzheu@de.ibm.com> 6 */ 7 8 #ifndef _ASM_S390_DIAG_H 9 #define _ASM_S390_DIAG_H 10 11 /* 12 * Diagnose 10: Release page range 13 */ 14 static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn) 15 { 16 unsigned long start_addr, end_addr; 17 18 start_addr = start_pfn << PAGE_SHIFT; 19 end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT; 20 21 asm volatile( 22 "0: diag %0,%1,0x10\n" 23 "1:\n" 24 EX_TABLE(0b, 1b) 25 EX_TABLE(1b, 1b) 26 : : "a" (start_addr), "a" (end_addr)); 27 } 28 29 /* 30 * Diagnose 14: Input spool file manipulation 31 */ 32 extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode); 33 34 /* 35 * Diagnose 210: Get information about a virtual device 36 */ 37 struct diag210 { 38 u16 vrdcdvno; /* device number (input) */ 39 u16 vrdclen; /* data block length (input) */ 40 u8 vrdcvcla; /* virtual device class (output) */ 41 u8 vrdcvtyp; /* virtual device type (output) */ 42 u8 vrdcvsta; /* virtual device status (output) */ 43 u8 vrdcvfla; /* virtual device flags (output) */ 44 u8 vrdcrccl; /* real device class (output) */ 45 u8 vrdccrty; /* real device type (output) */ 46 u8 vrdccrmd; /* real device model (output) */ 47 u8 vrdccrft; /* real device feature (output) */ 48 } __attribute__((packed, aligned(4))); 49 50 extern int diag210(struct diag210 *addr); 51 52 #endif /* _ASM_S390_DIAG_H */ 53