| | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| | 2 | /* |
| | 3 | * S390 version |
| | 4 | * Copyright IBM Corp. 1999, 2017 |
| | 5 | */ |
| | 6 | #ifndef _ASM_S390_SETUP_H |
| | 7 | #define _ASM_S390_SETUP_H |
| | 8 | |
| | 9 | #include <linux/bits.h> |
| | 10 | #include <uapi/asm/setup.h> |
| | 11 | #include <linux/build_bug.h> |
| | 12 | |
| | 13 | #define PARMAREA 0x10400 |
| | 14 | |
| | 15 | #define COMMAND_LINE_SIZE CONFIG_COMMAND_LINE_SIZE |
| | 16 | |
| | 17 | #define LPP_MAGIC BIT(31) |
| | 18 | #define LPP_PID_MASK _AC(0xffffffff, UL) |
| | 19 | |
| | 20 | /* Offsets to entry points in kernel/head.S */ |
| | 21 | |
| | 22 | #define STARTUP_NORMAL_OFFSET 0x10000 |
| | 23 | #define STARTUP_KDUMP_OFFSET 0x10010 |
| | 24 | |
| | 25 | #define LEGACY_COMMAND_LINE_SIZE 896 |
| | 26 | |
| | 27 | #ifndef __ASSEMBLY__ |
| | 28 | |
| | 29 | #include <asm/lowcore.h> |
| | 30 | #include <asm/types.h> |
| | 31 | |
| | 32 | struct parmarea { |
| | 33 | unsigned long ipl_device; /* 0x10400 */ |
| | 34 | unsigned long initrd_start; /* 0x10408 */ |
| | 35 | unsigned long initrd_size; /* 0x10410 */ |
| | 36 | unsigned long oldmem_base; /* 0x10418 */ |
| | 37 | unsigned long oldmem_size; /* 0x10420 */ |
| | 38 | unsigned long kernel_version; /* 0x10428 */ |
| | 39 | unsigned long max_command_line_size; /* 0x10430 */ |
| | 40 | char pad1[0x10480-0x10438]; /* 0x10438 - 0x10480 */ |
| | 41 | char command_line[COMMAND_LINE_SIZE]; /* 0x10480 */ |
| | 42 | }; |
| | 43 | |
| | 44 | extern struct parmarea parmarea; |
| | 45 | |
| | 46 | extern unsigned int zlib_dfltcc_support; |
| | 47 | #define ZLIB_DFLTCC_DISABLED 0 |
| | 48 | #define ZLIB_DFLTCC_FULL 1 |
| | 49 | #define ZLIB_DFLTCC_DEFLATE_ONLY 2 |
| | 50 | #define ZLIB_DFLTCC_INFLATE_ONLY 3 |
| | 51 | #define ZLIB_DFLTCC_FULL_DEBUG 4 |
| | 52 | |
| | 53 | extern unsigned long ident_map_size; |
| | 54 | extern unsigned long max_mappable; |
| | 55 | |
| | 56 | /* The Write Back bit position in the physaddr is given by the SLPC PCI */ |
| | 57 | extern unsigned long mio_wb_bit_mask; |
| | 58 | |
| | 59 | /* |
| | 60 | * Console mode. Override with conmode= |
| | 61 | */ |
| | 62 | extern unsigned int console_mode; |
| | 63 | extern unsigned int console_devno; |
| | 64 | extern unsigned int console_irq; |
| | 65 | |
| | 66 | #define CONSOLE_IS_UNDEFINED (console_mode == 0) |
| | 67 | #define CONSOLE_IS_SCLP (console_mode == 1) |
| | 68 | #define CONSOLE_IS_3215 (console_mode == 2) |
| | 69 | #define CONSOLE_IS_3270 (console_mode == 3) |
| | 70 | #define CONSOLE_IS_VT220 (console_mode == 4) |
| | 71 | #define CONSOLE_IS_HVC (console_mode == 5) |
| | 72 | #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0) |
| | 73 | #define SET_CONSOLE_3215 do { console_mode = 2; } while (0) |
| | 74 | #define SET_CONSOLE_3270 do { console_mode = 3; } while (0) |
| | 75 | #define SET_CONSOLE_VT220 do { console_mode = 4; } while (0) |
| | 76 | #define SET_CONSOLE_HVC do { console_mode = 5; } while (0) |
| | 77 | |
| | 78 | void register_early_console(void); |
| | 79 | |
| | 80 | #ifdef CONFIG_VMCP |
| | 81 | void vmcp_cma_reserve(void); |
| | 82 | #else |
| | 83 | static inline void vmcp_cma_reserve(void) { } |
| | 84 | #endif |
| | 85 | |
| | 86 | void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault); |
| | 87 | |
| | 88 | extern void (*_machine_restart)(char *command); |
| | 89 | extern void (*_machine_halt)(void); |
| | 90 | extern void (*_machine_power_off)(void); |
| | 91 | |
| | 92 | struct oldmem_data { |
| | 93 | unsigned long start; |
| | 94 | unsigned long size; |
| | 95 | }; |
| | 96 | extern struct oldmem_data oldmem_data; |
| | 97 | |
| | 98 | static __always_inline u32 gen_lpswe(unsigned long addr) |
| | 99 | { |
| | 100 | BUILD_BUG_ON(addr > 0xfff); |
| | 101 | return 0xb2b20000 | addr; |
| | 102 | } |
| | 103 | #endif /* __ASSEMBLY__ */ |
| | 104 | #endif /* _ASM_S390_SETUP_H */ |
projects / linux-2.6-block.git / blame_incremental