1 /* 2 * include/asm-s390/setup.h 3 * 4 * S390 version 5 * Copyright IBM Corp. 1999,2010 6 */ 7 8 #ifndef _ASM_S390_SETUP_H 9 #define _ASM_S390_SETUP_H 10 11 #define COMMAND_LINE_SIZE 4096 12 13 #define ARCH_COMMAND_LINE_SIZE 896 14 15 #ifdef __KERNEL__ 16 17 #define PARMAREA 0x10400 18 #define MEMORY_CHUNKS 256 19 20 #ifndef __ASSEMBLY__ 21 22 #include <asm/lowcore.h> 23 #include <asm/types.h> 24 25 #ifndef __s390x__ 26 #define IPL_DEVICE (*(unsigned long *) (0x10404)) 27 #define INITRD_START (*(unsigned long *) (0x1040C)) 28 #define INITRD_SIZE (*(unsigned long *) (0x10414)) 29 #else /* __s390x__ */ 30 #define IPL_DEVICE (*(unsigned long *) (0x10400)) 31 #define INITRD_START (*(unsigned long *) (0x10408)) 32 #define INITRD_SIZE (*(unsigned long *) (0x10410)) 33 #endif /* __s390x__ */ 34 #define COMMAND_LINE ((char *) (0x10480)) 35 36 #define CHUNK_READ_WRITE 0 37 #define CHUNK_READ_ONLY 1 38 39 struct mem_chunk { 40 unsigned long addr; 41 unsigned long size; 42 int type; 43 }; 44 45 extern struct mem_chunk memory_chunk[]; 46 extern unsigned long real_memory_size; 47 extern int memory_end_set; 48 extern unsigned long memory_end; 49 50 void detect_memory_layout(struct mem_chunk chunk[]); 51 52 #define PRIMARY_SPACE_MODE 0 53 #define ACCESS_REGISTER_MODE 1 54 #define SECONDARY_SPACE_MODE 2 55 #define HOME_SPACE_MODE 3 56 57 extern unsigned int user_mode; 58 59 /* 60 * Machine features detected in head.S 61 */ 62 63 #define MACHINE_FLAG_VM (1UL << 0) 64 #define MACHINE_FLAG_IEEE (1UL << 1) 65 #define MACHINE_FLAG_CSP (1UL << 3) 66 #define MACHINE_FLAG_MVPG (1UL << 4) 67 #define MACHINE_FLAG_DIAG44 (1UL << 5) 68 #define MACHINE_FLAG_IDTE (1UL << 6) 69 #define MACHINE_FLAG_DIAG9C (1UL << 7) 70 #define MACHINE_FLAG_MVCOS (1UL << 8) 71 #define MACHINE_FLAG_KVM (1UL << 9) 72 #define MACHINE_FLAG_HPAGE (1UL << 10) 73 #define MACHINE_FLAG_PFMF (1UL << 11) 74 #define MACHINE_FLAG_LPAR (1UL << 12) 75 #define MACHINE_FLAG_SPP (1UL << 13) 76 #define MACHINE_FLAG_TOPOLOGY (1UL << 14) 77 78 #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM) 79 #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM) 80 #define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR) 81 82 #define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C) 83 84 #ifndef __s390x__ 85 #define MACHINE_HAS_IEEE (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE) 86 #define MACHINE_HAS_CSP (S390_lowcore.machine_flags & MACHINE_FLAG_CSP) 87 #define MACHINE_HAS_IDTE (0) 88 #define MACHINE_HAS_DIAG44 (1) 89 #define MACHINE_HAS_MVPG (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG) 90 #define MACHINE_HAS_MVCOS (0) 91 #define MACHINE_HAS_HPAGE (0) 92 #define MACHINE_HAS_PFMF (0) 93 #define MACHINE_HAS_SPP (0) 94 #define MACHINE_HAS_TOPOLOGY (0) 95 #else /* __s390x__ */ 96 #define MACHINE_HAS_IEEE (1) 97 #define MACHINE_HAS_CSP (1) 98 #define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE) 99 #define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44) 100 #define MACHINE_HAS_MVPG (1) 101 #define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS) 102 #define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE) 103 #define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF) 104 #define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP) 105 #define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY) 106 #endif /* __s390x__ */ 107 108 #define ZFCPDUMP_HSA_SIZE (32UL<<20) 109 110 /* 111 * Console mode. Override with conmode= 112 */ 113 extern unsigned int console_mode; 114 extern unsigned int console_devno; 115 extern unsigned int console_irq; 116 117 extern char vmhalt_cmd[]; 118 extern char vmpoff_cmd[]; 119 120 #define CONSOLE_IS_UNDEFINED (console_mode == 0) 121 #define CONSOLE_IS_SCLP (console_mode == 1) 122 #define CONSOLE_IS_3215 (console_mode == 2) 123 #define CONSOLE_IS_3270 (console_mode == 3) 124 #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0) 125 #define SET_CONSOLE_3215 do { console_mode = 2; } while (0) 126 #define SET_CONSOLE_3270 do { console_mode = 3; } while (0) 127 128 #define NSS_NAME_SIZE 8 129 extern char kernel_nss_name[]; 130 131 #else /* __ASSEMBLY__ */ 132 133 #ifndef __s390x__ 134 #define IPL_DEVICE 0x10404 135 #define INITRD_START 0x1040C 136 #define INITRD_SIZE 0x10414 137 #else /* __s390x__ */ 138 #define IPL_DEVICE 0x10400 139 #define INITRD_START 0x10408 140 #define INITRD_SIZE 0x10410 141 #endif /* __s390x__ */ 142 #define COMMAND_LINE 0x10480 143 144 #endif /* __ASSEMBLY__ */ 145 #endif /* __KERNEL__ */ 146 #endif /* _ASM_S390_SETUP_H */ 147