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 4096 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 #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 75 #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM) 76 #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM) 77 #define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C) 78 79 #ifndef __s390x__ 80 #define MACHINE_HAS_IEEE (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE) 81 #define MACHINE_HAS_CSP (S390_lowcore.machine_flags & MACHINE_FLAG_CSP) 82 #define MACHINE_HAS_IDTE (0) 83 #define MACHINE_HAS_DIAG44 (1) 84 #define MACHINE_HAS_MVPG (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG) 85 #define MACHINE_HAS_MVCOS (0) 86 #define MACHINE_HAS_HPAGE (0) 87 #define MACHINE_HAS_PFMF (0) 88 #else /* __s390x__ */ 89 #define MACHINE_HAS_IEEE (1) 90 #define MACHINE_HAS_CSP (1) 91 #define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE) 92 #define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44) 93 #define MACHINE_HAS_MVPG (1) 94 #define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS) 95 #define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE) 96 #define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF) 97 #endif /* __s390x__ */ 98 99 #define ZFCPDUMP_HSA_SIZE (32UL<<20) 100 101 /* 102 * Console mode. Override with conmode= 103 */ 104 extern unsigned int console_mode; 105 extern unsigned int console_devno; 106 extern unsigned int console_irq; 107 108 extern char vmhalt_cmd[]; 109 extern char vmpoff_cmd[]; 110 111 #define CONSOLE_IS_UNDEFINED (console_mode == 0) 112 #define CONSOLE_IS_SCLP (console_mode == 1) 113 #define CONSOLE_IS_3215 (console_mode == 2) 114 #define CONSOLE_IS_3270 (console_mode == 3) 115 #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0) 116 #define SET_CONSOLE_3215 do { console_mode = 2; } while (0) 117 #define SET_CONSOLE_3270 do { console_mode = 3; } while (0) 118 119 #define NSS_NAME_SIZE 8 120 extern char kernel_nss_name[]; 121 122 #else /* __ASSEMBLY__ */ 123 124 #ifndef __s390x__ 125 #define IPL_DEVICE 0x10404 126 #define INITRD_START 0x1040C 127 #define INITRD_SIZE 0x10414 128 #else /* __s390x__ */ 129 #define IPL_DEVICE 0x10400 130 #define INITRD_START 0x10408 131 #define INITRD_SIZE 0x10410 132 #endif /* __s390x__ */ 133 #define COMMAND_LINE 0x10480 134 135 #endif /* __ASSEMBLY__ */ 136 #endif /* __KERNEL__ */ 137 #endif /* _ASM_S390_SETUP_H */ 138