| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * S390 version |
| * Copyright IBM Corp. 1999, 2017 |
| */ |
| #ifndef _ASM_S390_SETUP_H |
| #define _ASM_S390_SETUP_H |
| |
| #include <linux/const.h> |
| #include <uapi/asm/setup.h> |
| |
| #define EP_OFFSET 0x10008 |
| #define EP_STRING "S390EP" |
| #define PARMAREA 0x10400 |
| #define PARMAREA_END 0x11000 |
| |
| /* |
| * Machine features detected in early.c |
| */ |
| |
| #define MACHINE_FLAG_VM _BITUL(0) |
| #define MACHINE_FLAG_KVM _BITUL(1) |
| #define MACHINE_FLAG_LPAR _BITUL(2) |
| #define MACHINE_FLAG_DIAG9C _BITUL(3) |
| #define MACHINE_FLAG_ESOP _BITUL(4) |
| #define MACHINE_FLAG_IDTE _BITUL(5) |
| #define MACHINE_FLAG_DIAG44 _BITUL(6) |
| #define MACHINE_FLAG_EDAT1 _BITUL(7) |
| #define MACHINE_FLAG_EDAT2 _BITUL(8) |
| #define MACHINE_FLAG_TOPOLOGY _BITUL(10) |
| #define MACHINE_FLAG_TE _BITUL(11) |
| #define MACHINE_FLAG_TLB_LC _BITUL(12) |
| #define MACHINE_FLAG_VX _BITUL(13) |
| #define MACHINE_FLAG_TLB_GUEST _BITUL(14) |
| #define MACHINE_FLAG_NX _BITUL(15) |
| #define MACHINE_FLAG_GS _BITUL(16) |
| #define MACHINE_FLAG_SCC _BITUL(17) |
| |
| #define LPP_MAGIC _BITUL(31) |
| #define LPP_PID_MASK _AC(0xffffffff, UL) |
| |
| /* Offsets to entry points in kernel/head.S */ |
| |
| #define STARTUP_NORMAL_OFFSET 0x10000 |
| #define STARTUP_KDUMP_OFFSET 0x10010 |
| |
| /* Offsets to parameters in kernel/head.S */ |
| |
| #define IPL_DEVICE_OFFSET 0x10400 |
| #define INITRD_START_OFFSET 0x10408 |
| #define INITRD_SIZE_OFFSET 0x10410 |
| #define OLDMEM_BASE_OFFSET 0x10418 |
| #define OLDMEM_SIZE_OFFSET 0x10420 |
| #define COMMAND_LINE_OFFSET 0x10480 |
| |
| #ifndef __ASSEMBLY__ |
| |
| #include <asm/lowcore.h> |
| #include <asm/types.h> |
| |
| #define IPL_DEVICE (*(unsigned long *) (IPL_DEVICE_OFFSET)) |
| #define INITRD_START (*(unsigned long *) (INITRD_START_OFFSET)) |
| #define INITRD_SIZE (*(unsigned long *) (INITRD_SIZE_OFFSET)) |
| #define OLDMEM_BASE (*(unsigned long *) (OLDMEM_BASE_OFFSET)) |
| #define OLDMEM_SIZE (*(unsigned long *) (OLDMEM_SIZE_OFFSET)) |
| #define COMMAND_LINE ((char *) (COMMAND_LINE_OFFSET)) |
| |
| extern int memory_end_set; |
| extern unsigned long memory_end; |
| extern unsigned long max_physmem_end; |
| |
| extern void detect_memory_memblock(void); |
| |
| #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM) |
| #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM) |
| #define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR) |
| |
| #define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C) |
| #define MACHINE_HAS_ESOP (S390_lowcore.machine_flags & MACHINE_FLAG_ESOP) |
| #define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE) |
| #define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44) |
| #define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1) |
| #define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2) |
| #define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY) |
| #define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE) |
| #define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC) |
| #define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX) |
| #define MACHINE_HAS_TLB_GUEST (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_GUEST) |
| #define MACHINE_HAS_NX (S390_lowcore.machine_flags & MACHINE_FLAG_NX) |
| #define MACHINE_HAS_GS (S390_lowcore.machine_flags & MACHINE_FLAG_GS) |
| #define MACHINE_HAS_SCC (S390_lowcore.machine_flags & MACHINE_FLAG_SCC) |
| |
| /* |
| * Console mode. Override with conmode= |
| */ |
| extern unsigned int console_mode; |
| extern unsigned int console_devno; |
| extern unsigned int console_irq; |
| |
| extern char vmhalt_cmd[]; |
| extern char vmpoff_cmd[]; |
| |
| #define CONSOLE_IS_UNDEFINED (console_mode == 0) |
| #define CONSOLE_IS_SCLP (console_mode == 1) |
| #define CONSOLE_IS_3215 (console_mode == 2) |
| #define CONSOLE_IS_3270 (console_mode == 3) |
| #define CONSOLE_IS_VT220 (console_mode == 4) |
| #define CONSOLE_IS_HVC (console_mode == 5) |
| #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0) |
| #define SET_CONSOLE_3215 do { console_mode = 2; } while (0) |
| #define SET_CONSOLE_3270 do { console_mode = 3; } while (0) |
| #define SET_CONSOLE_VT220 do { console_mode = 4; } while (0) |
| #define SET_CONSOLE_HVC do { console_mode = 5; } while (0) |
| |
| #ifdef CONFIG_PFAULT |
| extern int pfault_init(void); |
| extern void pfault_fini(void); |
| #else /* CONFIG_PFAULT */ |
| #define pfault_init() ({-1;}) |
| #define pfault_fini() do { } while (0) |
| #endif /* CONFIG_PFAULT */ |
| |
| #ifdef CONFIG_VMCP |
| void vmcp_cma_reserve(void); |
| #else |
| static inline void vmcp_cma_reserve(void) { } |
| #endif |
| |
| void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault); |
| |
| void cmma_init(void); |
| void cmma_init_nodat(void); |
| |
| extern void (*_machine_restart)(char *command); |
| extern void (*_machine_halt)(void); |
| extern void (*_machine_power_off)(void); |
| |
| #else /* __ASSEMBLY__ */ |
| |
| #define IPL_DEVICE (IPL_DEVICE_OFFSET) |
| #define INITRD_START (INITRD_START_OFFSET) |
| #define INITRD_SIZE (INITRD_SIZE_OFFSET) |
| #define OLDMEM_BASE (OLDMEM_BASE_OFFSET) |
| #define OLDMEM_SIZE (OLDMEM_SIZE_OFFSET) |
| #define COMMAND_LINE (COMMAND_LINE_OFFSET) |
| |
| #endif /* __ASSEMBLY__ */ |
| #endif /* _ASM_S390_SETUP_H */ |
