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177 lines
5.6 KiB
177 lines
5.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* S390 version |
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* Copyright IBM Corp. 1999, 2017 |
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*/ |
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#ifndef _ASM_S390_SETUP_H |
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#define _ASM_S390_SETUP_H |
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#include <linux/bits.h> |
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#include <uapi/asm/setup.h> |
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#include <linux/build_bug.h> |
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#define EP_OFFSET 0x10008 |
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#define EP_STRING "S390EP" |
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#define PARMAREA 0x10400 |
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#define EARLY_SCCB_OFFSET 0x11000 |
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#define HEAD_END 0x12000 |
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/* |
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* Machine features detected in early.c |
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*/ |
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#define MACHINE_FLAG_VM BIT(0) |
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#define MACHINE_FLAG_KVM BIT(1) |
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#define MACHINE_FLAG_LPAR BIT(2) |
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#define MACHINE_FLAG_DIAG9C BIT(3) |
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#define MACHINE_FLAG_ESOP BIT(4) |
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#define MACHINE_FLAG_IDTE BIT(5) |
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#define MACHINE_FLAG_EDAT1 BIT(7) |
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#define MACHINE_FLAG_EDAT2 BIT(8) |
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#define MACHINE_FLAG_TOPOLOGY BIT(10) |
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#define MACHINE_FLAG_TE BIT(11) |
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#define MACHINE_FLAG_TLB_LC BIT(12) |
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#define MACHINE_FLAG_VX BIT(13) |
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#define MACHINE_FLAG_TLB_GUEST BIT(14) |
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#define MACHINE_FLAG_NX BIT(15) |
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#define MACHINE_FLAG_GS BIT(16) |
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#define MACHINE_FLAG_SCC BIT(17) |
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#define LPP_MAGIC BIT(31) |
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#define LPP_PID_MASK _AC(0xffffffff, UL) |
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/* Offsets to entry points in kernel/head.S */ |
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#define STARTUP_NORMAL_OFFSET 0x10000 |
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#define STARTUP_KDUMP_OFFSET 0x10010 |
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/* Offsets to parameters in kernel/head.S */ |
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#define IPL_DEVICE_OFFSET 0x10400 |
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#define INITRD_START_OFFSET 0x10408 |
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#define INITRD_SIZE_OFFSET 0x10410 |
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#define OLDMEM_BASE_OFFSET 0x10418 |
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#define OLDMEM_SIZE_OFFSET 0x10420 |
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#define KERNEL_VERSION_OFFSET 0x10428 |
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#define COMMAND_LINE_OFFSET 0x10480 |
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#ifndef __ASSEMBLY__ |
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#include <asm/lowcore.h> |
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#include <asm/types.h> |
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#define IPL_DEVICE (*(unsigned long *) (IPL_DEVICE_OFFSET)) |
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#define INITRD_START (*(unsigned long *) (INITRD_START_OFFSET)) |
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#define INITRD_SIZE (*(unsigned long *) (INITRD_SIZE_OFFSET)) |
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#define OLDMEM_BASE (*(unsigned long *) (OLDMEM_BASE_OFFSET)) |
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#define OLDMEM_SIZE (*(unsigned long *) (OLDMEM_SIZE_OFFSET)) |
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#define COMMAND_LINE ((char *) (COMMAND_LINE_OFFSET)) |
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struct parmarea { |
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unsigned long ipl_device; /* 0x10400 */ |
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unsigned long initrd_start; /* 0x10408 */ |
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unsigned long initrd_size; /* 0x10410 */ |
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unsigned long oldmem_base; /* 0x10418 */ |
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unsigned long oldmem_size; /* 0x10420 */ |
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unsigned long kernel_version; /* 0x10428 */ |
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char pad1[0x10480 - 0x10430]; /* 0x10430 - 0x10480 */ |
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char command_line[ARCH_COMMAND_LINE_SIZE]; /* 0x10480 */ |
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}; |
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extern unsigned int zlib_dfltcc_support; |
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#define ZLIB_DFLTCC_DISABLED 0 |
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#define ZLIB_DFLTCC_FULL 1 |
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#define ZLIB_DFLTCC_DEFLATE_ONLY 2 |
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#define ZLIB_DFLTCC_INFLATE_ONLY 3 |
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#define ZLIB_DFLTCC_FULL_DEBUG 4 |
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extern int noexec_disabled; |
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extern unsigned long ident_map_size; |
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extern unsigned long vmalloc_size; |
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/* The Write Back bit position in the physaddr is given by the SLPC PCI */ |
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extern unsigned long mio_wb_bit_mask; |
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#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM) |
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#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM) |
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#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR) |
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#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C) |
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#define MACHINE_HAS_ESOP (S390_lowcore.machine_flags & MACHINE_FLAG_ESOP) |
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#define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE) |
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#define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1) |
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#define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2) |
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#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY) |
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#define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE) |
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#define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC) |
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#define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX) |
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#define MACHINE_HAS_TLB_GUEST (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_GUEST) |
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#define MACHINE_HAS_NX (S390_lowcore.machine_flags & MACHINE_FLAG_NX) |
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#define MACHINE_HAS_GS (S390_lowcore.machine_flags & MACHINE_FLAG_GS) |
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#define MACHINE_HAS_SCC (S390_lowcore.machine_flags & MACHINE_FLAG_SCC) |
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/* |
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* Console mode. Override with conmode= |
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*/ |
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extern unsigned int console_mode; |
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extern unsigned int console_devno; |
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extern unsigned int console_irq; |
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#define CONSOLE_IS_UNDEFINED (console_mode == 0) |
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#define CONSOLE_IS_SCLP (console_mode == 1) |
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#define CONSOLE_IS_3215 (console_mode == 2) |
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#define CONSOLE_IS_3270 (console_mode == 3) |
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#define CONSOLE_IS_VT220 (console_mode == 4) |
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#define CONSOLE_IS_HVC (console_mode == 5) |
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#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0) |
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#define SET_CONSOLE_3215 do { console_mode = 2; } while (0) |
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#define SET_CONSOLE_3270 do { console_mode = 3; } while (0) |
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#define SET_CONSOLE_VT220 do { console_mode = 4; } while (0) |
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#define SET_CONSOLE_HVC do { console_mode = 5; } while (0) |
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#ifdef CONFIG_PFAULT |
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extern int pfault_init(void); |
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extern void pfault_fini(void); |
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#else /* CONFIG_PFAULT */ |
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#define pfault_init() ({-1;}) |
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#define pfault_fini() do { } while (0) |
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#endif /* CONFIG_PFAULT */ |
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#ifdef CONFIG_VMCP |
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void vmcp_cma_reserve(void); |
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#else |
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static inline void vmcp_cma_reserve(void) { } |
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#endif |
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void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault); |
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void cmma_init(void); |
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void cmma_init_nodat(void); |
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extern void (*_machine_restart)(char *command); |
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extern void (*_machine_halt)(void); |
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extern void (*_machine_power_off)(void); |
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extern unsigned long __kaslr_offset; |
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static inline unsigned long kaslr_offset(void) |
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{ |
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return __kaslr_offset; |
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} |
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static inline u32 gen_lpswe(unsigned long addr) |
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{ |
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BUILD_BUG_ON(addr > 0xfff); |
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return 0xb2b20000 | addr; |
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} |
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#else /* __ASSEMBLY__ */ |
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#define IPL_DEVICE (IPL_DEVICE_OFFSET) |
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#define INITRD_START (INITRD_START_OFFSET) |
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#define INITRD_SIZE (INITRD_SIZE_OFFSET) |
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#define OLDMEM_BASE (OLDMEM_BASE_OFFSET) |
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#define OLDMEM_SIZE (OLDMEM_SIZE_OFFSET) |
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#define COMMAND_LINE (COMMAND_LINE_OFFSET) |
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#endif /* __ASSEMBLY__ */ |
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#endif /* _ASM_S390_SETUP_H */
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