1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * S390 version 4 * Copyright IBM Corp. 1999, 2010 5 */ 6 #ifndef _ASM_S390_SETUP_H 7 #define _ASM_S390_SETUP_H 8 9 #include <linux/const.h> 10 #include <uapi/asm/setup.h> 11 12 13 #define PARMAREA 0x10400 14 15 /* 16 * Machine features detected in early.c 17 */ 18 19 #define MACHINE_FLAG_VM _BITUL(0) 20 #define MACHINE_FLAG_KVM _BITUL(1) 21 #define MACHINE_FLAG_LPAR _BITUL(2) 22 #define MACHINE_FLAG_DIAG9C _BITUL(3) 23 #define MACHINE_FLAG_ESOP _BITUL(4) 24 #define MACHINE_FLAG_IDTE _BITUL(5) 25 #define MACHINE_FLAG_DIAG44 _BITUL(6) 26 #define MACHINE_FLAG_EDAT1 _BITUL(7) 27 #define MACHINE_FLAG_EDAT2 _BITUL(8) 28 #define MACHINE_FLAG_LPP _BITUL(9) 29 #define MACHINE_FLAG_TOPOLOGY _BITUL(10) 30 #define MACHINE_FLAG_TE _BITUL(11) 31 #define MACHINE_FLAG_TLB_LC _BITUL(12) 32 #define MACHINE_FLAG_VX _BITUL(13) 33 #define MACHINE_FLAG_TLB_GUEST _BITUL(14) 34 #define MACHINE_FLAG_NX _BITUL(15) 35 #define MACHINE_FLAG_GS _BITUL(16) 36 #define MACHINE_FLAG_SCC _BITUL(17) 37 38 #define LPP_MAGIC _BITUL(31) 39 #define LPP_PID_MASK _AC(0xffffffff, UL) 40 41 #ifndef __ASSEMBLY__ 42 43 #include <asm/lowcore.h> 44 #include <asm/types.h> 45 46 #define IPL_DEVICE (*(unsigned long *) (0x10400)) 47 #define INITRD_START (*(unsigned long *) (0x10408)) 48 #define INITRD_SIZE (*(unsigned long *) (0x10410)) 49 #define OLDMEM_BASE (*(unsigned long *) (0x10418)) 50 #define OLDMEM_SIZE (*(unsigned long *) (0x10420)) 51 #define COMMAND_LINE ((char *) (0x10480)) 52 53 extern int memory_end_set; 54 extern unsigned long memory_end; 55 extern unsigned long max_physmem_end; 56 57 extern void detect_memory_memblock(void); 58 59 #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM) 60 #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM) 61 #define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR) 62 63 #define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C) 64 #define MACHINE_HAS_ESOP (S390_lowcore.machine_flags & MACHINE_FLAG_ESOP) 65 #define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE) 66 #define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44) 67 #define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1) 68 #define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2) 69 #define MACHINE_HAS_LPP (S390_lowcore.machine_flags & MACHINE_FLAG_LPP) 70 #define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY) 71 #define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE) 72 #define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC) 73 #define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX) 74 #define MACHINE_HAS_TLB_GUEST (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_GUEST) 75 #define MACHINE_HAS_NX (S390_lowcore.machine_flags & MACHINE_FLAG_NX) 76 #define MACHINE_HAS_GS (S390_lowcore.machine_flags & MACHINE_FLAG_GS) 77 #define MACHINE_HAS_SCC (S390_lowcore.machine_flags & MACHINE_FLAG_SCC) 78 79 /* 80 * Console mode. Override with conmode= 81 */ 82 extern unsigned int console_mode; 83 extern unsigned int console_devno; 84 extern unsigned int console_irq; 85 86 extern char vmhalt_cmd[]; 87 extern char vmpoff_cmd[]; 88 89 #define CONSOLE_IS_UNDEFINED (console_mode == 0) 90 #define CONSOLE_IS_SCLP (console_mode == 1) 91 #define CONSOLE_IS_3215 (console_mode == 2) 92 #define CONSOLE_IS_3270 (console_mode == 3) 93 #define CONSOLE_IS_VT220 (console_mode == 4) 94 #define CONSOLE_IS_HVC (console_mode == 5) 95 #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0) 96 #define SET_CONSOLE_3215 do { console_mode = 2; } while (0) 97 #define SET_CONSOLE_3270 do { console_mode = 3; } while (0) 98 #define SET_CONSOLE_VT220 do { console_mode = 4; } while (0) 99 #define SET_CONSOLE_HVC do { console_mode = 5; } while (0) 100 101 #ifdef CONFIG_PFAULT 102 extern int pfault_init(void); 103 extern void pfault_fini(void); 104 #else /* CONFIG_PFAULT */ 105 #define pfault_init() ({-1;}) 106 #define pfault_fini() do { } while (0) 107 #endif /* CONFIG_PFAULT */ 108 109 #ifdef CONFIG_VMCP 110 void vmcp_cma_reserve(void); 111 #else 112 static inline void vmcp_cma_reserve(void) { } 113 #endif 114 115 void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault); 116 117 void cmma_init(void); 118 void cmma_init_nodat(void); 119 120 extern void (*_machine_restart)(char *command); 121 extern void (*_machine_halt)(void); 122 extern void (*_machine_power_off)(void); 123 124 #else /* __ASSEMBLY__ */ 125 126 #define IPL_DEVICE 0x10400 127 #define INITRD_START 0x10408 128 #define INITRD_SIZE 0x10410 129 #define OLDMEM_BASE 0x10418 130 #define OLDMEM_SIZE 0x10420 131 #define COMMAND_LINE 0x10480 132 133 #endif /* __ASSEMBLY__ */ 134 #endif /* _ASM_S390_SETUP_H */ 135