1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright IBM Corp. 2006 4 * 5 * Author(s): Melissa Howland <melissah@us.ibm.com> 6 */ 7 8 #ifndef _ASM_S390_APPLDATA_H 9 #define _ASM_S390_APPLDATA_H 10 11 #include <linux/io.h> 12 #include <asm/diag.h> 13 14 #define APPLDATA_START_INTERVAL_REC 0x80 15 #define APPLDATA_STOP_REC 0x81 16 #define APPLDATA_GEN_EVENT_REC 0x82 17 #define APPLDATA_START_CONFIG_REC 0x83 18 19 /* 20 * Parameter list for DIAGNOSE X'DC' 21 */ 22 struct appldata_parameter_list { 23 u16 diag; 24 u8 function; 25 u8 parlist_length; 26 u32 unused01; 27 u16 reserved; 28 u16 buffer_length; 29 u32 unused02; 30 u64 product_id_addr; 31 u64 buffer_addr; 32 } __attribute__ ((packed)); 33 34 struct appldata_product_id { 35 char prod_nr[7]; /* product number */ 36 u16 prod_fn; /* product function */ 37 u8 record_nr; /* record number */ 38 u16 version_nr; /* version */ 39 u16 release_nr; /* release */ 40 u16 mod_lvl; /* modification level */ 41 } __attribute__ ((packed)); 42 43 44 static inline int appldata_asm(struct appldata_parameter_list *parm_list, 45 struct appldata_product_id *id, 46 unsigned short fn, void *buffer, 47 unsigned short length) 48 { 49 int ry; 50 51 if (!MACHINE_IS_VM) 52 return -EOPNOTSUPP; 53 parm_list->diag = 0xdc; 54 parm_list->function = fn; 55 parm_list->parlist_length = sizeof(*parm_list); 56 parm_list->buffer_length = length; 57 parm_list->product_id_addr = virt_to_phys(id); 58 parm_list->buffer_addr = virt_to_phys(buffer); 59 diag_stat_inc(DIAG_STAT_X0DC); 60 asm volatile( 61 " diag %1,%0,0xdc" 62 : "=d" (ry) 63 : "d" (virt_to_phys(parm_list)), "m" (*parm_list), "m" (*id) 64 : "cc"); 65 return ry; 66 } 67 68 #endif /* _ASM_S390_APPLDATA_H */ 69