1 /* 2 * include/asm-s390/setup.h 3 * 4 * S390 version 5 * Copyright IBM Corp. 1999,2006 6 */ 7 8 #ifndef _ASM_S390_SETUP_H 9 #define _ASM_S390_SETUP_H 10 11 #define COMMAND_LINE_SIZE 1024 12 13 #define ARCH_COMMAND_LINE_SIZE 896 14 15 #ifdef __KERNEL__ 16 17 #include <asm/types.h> 18 19 #define PARMAREA 0x10400 20 #define MEMORY_CHUNKS 256 21 22 #ifndef __ASSEMBLY__ 23 24 #ifndef __s390x__ 25 #define IPL_DEVICE (*(unsigned long *) (0x10404)) 26 #define INITRD_START (*(unsigned long *) (0x1040C)) 27 #define INITRD_SIZE (*(unsigned long *) (0x10414)) 28 #else /* __s390x__ */ 29 #define IPL_DEVICE (*(unsigned long *) (0x10400)) 30 #define INITRD_START (*(unsigned long *) (0x10408)) 31 #define INITRD_SIZE (*(unsigned long *) (0x10410)) 32 #endif /* __s390x__ */ 33 #define COMMAND_LINE ((char *) (0x10480)) 34 35 #define CHUNK_READ_WRITE 0 36 #define CHUNK_READ_ONLY 1 37 38 struct mem_chunk { 39 unsigned long addr; 40 unsigned long size; 41 int type; 42 }; 43 44 extern struct mem_chunk memory_chunk[]; 45 extern unsigned long real_memory_size; 46 47 void detect_memory_layout(struct mem_chunk chunk[]); 48 49 #ifdef CONFIG_S390_SWITCH_AMODE 50 extern unsigned int switch_amode; 51 #else 52 #define switch_amode (0) 53 #endif 54 55 #ifdef CONFIG_S390_EXEC_PROTECT 56 extern unsigned int s390_noexec; 57 #else 58 #define s390_noexec (0) 59 #endif 60 61 /* 62 * Machine features detected in head.S 63 */ 64 extern unsigned long machine_flags; 65 66 #define MACHINE_FLAG_VM (1UL << 0) 67 #define MACHINE_FLAG_IEEE (1UL << 1) 68 #define MACHINE_FLAG_CSP (1UL << 3) 69 #define MACHINE_FLAG_MVPG (1UL << 4) 70 #define MACHINE_FLAG_DIAG44 (1UL << 5) 71 #define MACHINE_FLAG_IDTE (1UL << 6) 72 #define MACHINE_FLAG_DIAG9C (1UL << 7) 73 #define MACHINE_FLAG_MVCOS (1UL << 8) 74 #define MACHINE_FLAG_KVM (1UL << 9) 75 #define MACHINE_FLAG_HPAGE (1UL << 10) 76 #define MACHINE_FLAG_PFMF (1UL << 11) 77 78 #define MACHINE_IS_VM (machine_flags & MACHINE_FLAG_VM) 79 #define MACHINE_IS_KVM (machine_flags & MACHINE_FLAG_KVM) 80 #define MACHINE_HAS_DIAG9C (machine_flags & MACHINE_FLAG_DIAG9C) 81 82 #ifndef __s390x__ 83 #define MACHINE_HAS_IEEE (machine_flags & MACHINE_FLAG_IEEE) 84 #define MACHINE_HAS_CSP (machine_flags & MACHINE_FLAG_CSP) 85 #define MACHINE_HAS_IDTE (0) 86 #define MACHINE_HAS_DIAG44 (1) 87 #define MACHINE_HAS_MVPG (machine_flags & MACHINE_FLAG_MVPG) 88 #define MACHINE_HAS_MVCOS (0) 89 #define MACHINE_HAS_HPAGE (0) 90 #define MACHINE_HAS_PFMF (0) 91 #else /* __s390x__ */ 92 #define MACHINE_HAS_IEEE (1) 93 #define MACHINE_HAS_CSP (1) 94 #define MACHINE_HAS_IDTE (machine_flags & MACHINE_FLAG_IDTE) 95 #define MACHINE_HAS_DIAG44 (machine_flags & MACHINE_FLAG_DIAG44) 96 #define MACHINE_HAS_MVPG (1) 97 #define MACHINE_HAS_MVCOS (machine_flags & MACHINE_FLAG_MVCOS) 98 #define MACHINE_HAS_HPAGE (machine_flags & MACHINE_FLAG_HPAGE) 99 #define MACHINE_HAS_PFMF (machine_flags & MACHINE_FLAG_PFMF) 100 #endif /* __s390x__ */ 101 102 #define ZFCPDUMP_HSA_SIZE (32UL<<20) 103 104 /* 105 * Console mode. Override with conmode= 106 */ 107 extern unsigned int console_mode; 108 extern unsigned int console_devno; 109 extern unsigned int console_irq; 110 111 extern char vmhalt_cmd[]; 112 extern char vmpoff_cmd[]; 113 114 #define CONSOLE_IS_UNDEFINED (console_mode == 0) 115 #define CONSOLE_IS_SCLP (console_mode == 1) 116 #define CONSOLE_IS_3215 (console_mode == 2) 117 #define CONSOLE_IS_3270 (console_mode == 3) 118 #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0) 119 #define SET_CONSOLE_3215 do { console_mode = 2; } while (0) 120 #define SET_CONSOLE_3270 do { console_mode = 3; } while (0) 121 122 #define NSS_NAME_SIZE 8 123 extern char kernel_nss_name[]; 124 125 #else /* __ASSEMBLY__ */ 126 127 #ifndef __s390x__ 128 #define IPL_DEVICE 0x10404 129 #define INITRD_START 0x1040C 130 #define INITRD_SIZE 0x10414 131 #else /* __s390x__ */ 132 #define IPL_DEVICE 0x10400 133 #define INITRD_START 0x10408 134 #define INITRD_SIZE 0x10410 135 #endif /* __s390x__ */ 136 #define COMMAND_LINE 0x10480 137 138 #endif /* __ASSEMBLY__ */ 139 #endif /* __KERNEL__ */ 140 #endif /* _ASM_S390_SETUP_H */ 141