| Gerald Schaefer | 1f38d61 | 2006-09-20 15:59:26 +0200 | [diff] [blame] | 1 | /* |
| 2 | * include/asm-s390/appldata.h |
| 3 | * |
| 4 | * Copyright (C) IBM Corp. 2006 |
| 5 | * |
| 6 | * Author(s): Melissa Howland <melissah@us.ibm.com> |
| 7 | */ |
| 8 | |
| 9 | #ifndef _ASM_S390_APPLDATA_H |
| 10 | #define _ASM_S390_APPLDATA_H |
| 11 | |
| 12 | #include <asm/io.h> |
| 13 | |
| 14 | #ifndef CONFIG_64BIT |
| 15 | |
| 16 | #define APPLDATA_START_INTERVAL_REC 0x00 /* Function codes for */ |
| 17 | #define APPLDATA_STOP_REC 0x01 /* DIAG 0xDC */ |
| 18 | #define APPLDATA_GEN_EVENT_REC 0x02 |
| 19 | #define APPLDATA_START_CONFIG_REC 0x03 |
| 20 | |
| 21 | /* |
| 22 | * Parameter list for DIAGNOSE X'DC' |
| 23 | */ |
| 24 | struct appldata_parameter_list { |
| 25 | u16 diag; /* The DIAGNOSE code X'00DC' */ |
| 26 | u8 function; /* The function code for the DIAGNOSE */ |
| 27 | u8 parlist_length; /* Length of the parameter list */ |
| 28 | u32 product_id_addr; /* Address of the 16-byte product ID */ |
| 29 | u16 reserved; |
| 30 | u16 buffer_length; /* Length of the application data buffer */ |
| 31 | u32 buffer_addr; /* Address of the application data buffer */ |
| 32 | } __attribute__ ((packed)); |
| 33 | |
| 34 | #else /* CONFIG_64BIT */ |
| 35 | |
| 36 | #define APPLDATA_START_INTERVAL_REC 0x80 |
| 37 | #define APPLDATA_STOP_REC 0x81 |
| 38 | #define APPLDATA_GEN_EVENT_REC 0x82 |
| 39 | #define APPLDATA_START_CONFIG_REC 0x83 |
| 40 | |
| 41 | /* |
| 42 | * Parameter list for DIAGNOSE X'DC' |
| 43 | */ |
| 44 | struct appldata_parameter_list { |
| 45 | u16 diag; |
| 46 | u8 function; |
| 47 | u8 parlist_length; |
| 48 | u32 unused01; |
| 49 | u16 reserved; |
| 50 | u16 buffer_length; |
| 51 | u32 unused02; |
| 52 | u64 product_id_addr; |
| 53 | u64 buffer_addr; |
| 54 | } __attribute__ ((packed)); |
| 55 | |
| 56 | #endif /* CONFIG_64BIT */ |
| 57 | |
| 58 | struct appldata_product_id { |
| 59 | char prod_nr[7]; /* product number */ |
| 60 | u16 prod_fn; /* product function */ |
| 61 | u8 record_nr; /* record number */ |
| 62 | u16 version_nr; /* version */ |
| 63 | u16 release_nr; /* release */ |
| 64 | u16 mod_lvl; /* modification level */ |
| 65 | } __attribute__ ((packed)); |
| 66 | |
| 67 | static inline int appldata_asm(struct appldata_product_id *id, |
| 68 | unsigned short fn, void *buffer, |
| 69 | unsigned short length) |
| 70 | { |
| 71 | struct appldata_parameter_list parm_list; |
| 72 | int ry; |
| 73 | |
| 74 | if (!MACHINE_IS_VM) |
| 75 | return -ENOSYS; |
| 76 | parm_list.diag = 0xdc; |
| 77 | parm_list.function = fn; |
| 78 | parm_list.parlist_length = sizeof(parm_list); |
| 79 | parm_list.buffer_length = length; |
| 80 | parm_list.product_id_addr = (unsigned long) id; |
| 81 | parm_list.buffer_addr = virt_to_phys(buffer); |
| 82 | asm volatile( |
| 83 | "diag %1,%0,0xdc" |
| 84 | : "=d" (ry) |
| 85 | : "d" (&parm_list), "m" (parm_list), "m" (*id) |
| 86 | : "cc"); |
| 87 | return ry; |
| 88 | } |
| 89 | |
| 90 | #endif /* _ASM_S390_APPLDATA_H */ |