arch/s390/include/asm/setup.h - linux - Git at Google

 /* 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 EP_OFFSET		0x10008
 #define EP_STRING		"S390EP"
 #define PARMAREA		0x10400
 #define EARLY_SCCB_OFFSET	0x11000
 #define HEAD_END		0x12000

 #define EARLY_SCCB_SIZE		PAGE_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 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

 /* 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 KERNEL_VERSION_OFFSET	0x10428
 #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))

 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 */
 	char pad1[0x10480 - 0x10430];			/* 0x10430 - 0x10480 */
 	char command_line[ARCH_COMMAND_LINE_SIZE];	/* 0x10480 */
 };

 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 int memory_end_set;
 extern unsigned long memory_end;
 extern unsigned long vmalloc_size;
 extern unsigned long max_physmem_end;
 extern unsigned long __swsusp_reset_dma;

 #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)

 /*
  * 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);

 extern unsigned long __kaslr_offset;
 static inline unsigned long kaslr_offset(void)
 {
 	return __kaslr_offset;
 }

 static inline u32 gen_lpswe(unsigned long addr)
 {
 	BUILD_BUG_ON(addr > 0xfff);
 	return 0xb2b20000 | addr;
 }

 #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 */
	/* 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 EP_OFFSET 0x10008
	#define EP_STRING "S390EP"
	#define PARMAREA 0x10400
	#define EARLY_SCCB_OFFSET 0x11000
	#define HEAD_END 0x12000

	#define EARLY_SCCB_SIZE PAGE_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 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

	/* 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 KERNEL_VERSION_OFFSET 0x10428
	#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))

	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 */
	char pad1[0x10480 - 0x10430]; /* 0x10430 - 0x10480 */
	char command_line[ARCH_COMMAND_LINE_SIZE]; /* 0x10480 */
	};

	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 int memory_end_set;
	extern unsigned long memory_end;
	extern unsigned long vmalloc_size;
	extern unsigned long max_physmem_end;
	extern unsigned long __swsusp_reset_dma;

	#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)

	/*
	* 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);

	extern unsigned long __kaslr_offset;
	static inline unsigned long kaslr_offset(void)
	{
	return __kaslr_offset;
	}

	static inline u32 gen_lpswe(unsigned long addr)
	{
	BUILD_BUG_ON(addr > 0xfff);
	return 0xb2b20000 \| addr;
	}

	#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 */