/* 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/bits.h> #include <uapi/asm/setup.h> #include <linux/build_bug.h> #define PARMAREA 0x10400 #define COMMAND_LINE_SIZE CONFIG_COMMAND_LINE_SIZE /* * Machine features detected in early.c */ #define MACHINE_FLAG_VM BIT(0) #define MACHINE_FLAG_KVM BIT(1) #define MACHINE_FLAG_LPAR BIT(2) #define MACHINE_FLAG_DIAG9C BIT(3) #define MACHINE_FLAG_ESOP BIT(4) #define MACHINE_FLAG_IDTE BIT(5) #define MACHINE_FLAG_EDAT1 BIT(7) #define MACHINE_FLAG_EDAT2 BIT(8) #define MACHINE_FLAG_TOPOLOGY BIT(10) #define MACHINE_FLAG_TE BIT(11) #define MACHINE_FLAG_TLB_LC BIT(12) #define MACHINE_FLAG_VX BIT(13) #define MACHINE_FLAG_TLB_GUEST BIT(14) #define MACHINE_FLAG_NX BIT(15) #define MACHINE_FLAG_GS BIT(16) #define MACHINE_FLAG_SCC BIT(17) #define MACHINE_FLAG_PCI_MIO BIT(18) #define LPP_MAGIC BIT(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 #define LEGACY_COMMAND_LINE_SIZE 896 #ifndef __ASSEMBLY__ #include <asm/lowcore.h> #include <asm/types.h> struct parmarea { unsigned long ipl_device; /* 0x10400 */ unsigned long initrd_start; /* 0x10408 */ unsigned long initrd_size; /* 0x10410 */ unsigned long oldmem_base; /* 0x10418 */ unsigned long oldmem_size; /* 0x10420 */ unsigned long kernel_version; /* 0x10428 */ unsigned long max_command_line_size; /* 0x10430 */ char pad1[0x10480-0x10438]; /* 0x10438 - 0x10480 */ char command_line[COMMAND_LINE_SIZE]; /* 0x10480 */ }; extern struct parmarea parmarea; extern unsigned int zlib_dfltcc_support; #define ZLIB_DFLTCC_DISABLED 0 #define ZLIB_DFLTCC_FULL 1 #define ZLIB_DFLTCC_DEFLATE_ONLY 2 #define ZLIB_DFLTCC_INFLATE_ONLY 3 #define ZLIB_DFLTCC_FULL_DEBUG 4 extern int noexec_disabled; extern unsigned long ident_map_size; /* The Write Back bit position in the physaddr is given by the SLPC PCI */ extern unsigned long mio_wb_bit_mask; #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_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) #define MACHINE_HAS_PCI_MIO (S390_lowcore.machine_flags & MACHINE_FLAG_PCI_MIO) /* * Console mode. Override with conmode= */ extern unsigned int console_mode; extern unsigned int console_devno; extern unsigned int console_irq; #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); extern unsigned long __kaslr_offset; static inline unsigned long kaslr_offset(void) { return __kaslr_offset; } extern int is_full_image; struct initrd_data { unsigned long start; unsigned long size; }; extern struct initrd_data initrd_data; struct oldmem_data { unsigned long start; unsigned long size; }; extern struct oldmem_data oldmem_data; static inline u32 gen_lpswe(unsigned long addr) { BUILD_BUG_ON(addr > 0xfff); return 0xb2b20000 | addr; } #endif /* __ASSEMBLY__ */ #endif /* _ASM_S390_SETUP_H */