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/lowcore.h> 18 #include <asm/types.h> 19 20 #define PARMAREA 0x10400 21 #define MEMORY_CHUNKS 256 22 23 #ifndef __ASSEMBLY__ 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 #ifdef CONFIG_S390_SWITCH_AMODE 53 extern unsigned int switch_amode; 54 #else 55 #define switch_amode (0) 56 #endif 57 58 #ifdef CONFIG_S390_EXEC_PROTECT 59 extern unsigned int s390_noexec; 60 #else 61 #define s390_noexec (0) 62 #endif 63 64 /* 65 * Machine features detected in head.S 66 */ 67 68 #define MACHINE_FLAG_VM (1UL << 0) 69 #define MACHINE_FLAG_IEEE (1UL << 1) 70 #define MACHINE_FLAG_CSP (1UL << 3) 71 #define MACHINE_FLAG_MVPG (1UL << 4) 72 #define MACHINE_FLAG_DIAG44 (1UL << 5) 73 #define MACHINE_FLAG_IDTE (1UL << 6) 74 #define MACHINE_FLAG_DIAG9C (1UL << 7) 75 #define MACHINE_FLAG_MVCOS (1UL << 8) 76 #define MACHINE_FLAG_KVM (1UL << 9) 77 #define MACHINE_FLAG_HPAGE (1UL << 10) 78 #define MACHINE_FLAG_PFMF (1UL << 11) 79 80 #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM) 81 #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM) 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 #else /* __s390x__ */ 94 #define MACHINE_HAS_IEEE (1) 95 #define MACHINE_HAS_CSP (1) 96 #define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE) 97 #define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44) 98 #define MACHINE_HAS_MVPG (1) 99 #define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS) 100 #define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE) 101 #define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF) 102 #endif /* __s390x__ */ 103 104 #define ZFCPDUMP_HSA_SIZE (32UL<<20) 105 106 /* 107 * Console mode. Override with conmode= 108 */ 109 extern unsigned int console_mode; 110 extern unsigned int console_devno; 111 extern unsigned int console_irq; 112 113 extern char vmhalt_cmd[]; 114 extern char vmpoff_cmd[]; 115 116 #define CONSOLE_IS_UNDEFINED (console_mode == 0) 117 #define CONSOLE_IS_SCLP (console_mode == 1) 118 #define CONSOLE_IS_3215 (console_mode == 2) 119 #define CONSOLE_IS_3270 (console_mode == 3) 120 #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0) 121 #define SET_CONSOLE_3215 do { console_mode = 2; } while (0) 122 #define SET_CONSOLE_3270 do { console_mode = 3; } while (0) 123 124 #define NSS_NAME_SIZE 8 125 extern char kernel_nss_name[]; 126 127 #else /* __ASSEMBLY__ */ 128 129 #ifndef __s390x__ 130 #define IPL_DEVICE 0x10404 131 #define INITRD_START 0x1040C 132 #define INITRD_SIZE 0x10414 133 #else /* __s390x__ */ 134 #define IPL_DEVICE 0x10400 135 #define INITRD_START 0x10408 136 #define INITRD_SIZE 0x10410 137 #endif /* __s390x__ */ 138 #define COMMAND_LINE 0x10480 139 140 #endif /* __ASSEMBLY__ */ 141 #endif /* __KERNEL__ */ 142 #endif /* _ASM_S390_SETUP_H */ 143