mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
b13de4b7ad
The CAD instruction never worked quite as expected for the spinlock
code. It has been disabled by default with git commit 61b0b01686,
if the "cad" kernel parameter is specified it is enabled for both user
space and the spinlock code. Leave the option to enable the instruction
for user space but remove it from the spinlock code.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
126 lines
4.1 KiB
C
126 lines
4.1 KiB
C
/*
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* S390 version
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* Copyright IBM Corp. 1999, 2010
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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/const.h>
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#include <uapi/asm/setup.h>
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#define PARMAREA 0x10400
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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 _BITUL(0)
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#define MACHINE_FLAG_KVM _BITUL(1)
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#define MACHINE_FLAG_LPAR _BITUL(2)
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#define MACHINE_FLAG_DIAG9C _BITUL(3)
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#define MACHINE_FLAG_ESOP _BITUL(4)
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#define MACHINE_FLAG_IDTE _BITUL(5)
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#define MACHINE_FLAG_DIAG44 _BITUL(6)
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#define MACHINE_FLAG_EDAT1 _BITUL(7)
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#define MACHINE_FLAG_EDAT2 _BITUL(8)
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#define MACHINE_FLAG_LPP _BITUL(9)
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#define MACHINE_FLAG_TOPOLOGY _BITUL(10)
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#define MACHINE_FLAG_TE _BITUL(11)
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#define MACHINE_FLAG_TLB_LC _BITUL(12)
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#define MACHINE_FLAG_VX _BITUL(13)
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#define MACHINE_FLAG_NX _BITUL(14)
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#define MACHINE_FLAG_GS _BITUL(15)
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#define LPP_MAGIC _BITUL(31)
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#define LPP_PFAULT_PID_MASK _AC(0xffffffff, UL)
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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 *) (0x10400))
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#define INITRD_START (*(unsigned long *) (0x10408))
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#define INITRD_SIZE (*(unsigned long *) (0x10410))
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#define OLDMEM_BASE (*(unsigned long *) (0x10418))
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#define OLDMEM_SIZE (*(unsigned long *) (0x10420))
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#define COMMAND_LINE ((char *) (0x10480))
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extern int memory_end_set;
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extern unsigned long memory_end;
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extern unsigned long max_physmem_end;
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extern void detect_memory_memblock(void);
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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_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
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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_LPP (S390_lowcore.machine_flags & MACHINE_FLAG_LPP)
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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_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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/*
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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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extern char vmhalt_cmd[];
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extern char vmpoff_cmd[];
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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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#define NSS_NAME_SIZE 8
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extern char kernel_nss_name[];
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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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void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault);
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extern void cmma_init(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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#else /* __ASSEMBLY__ */
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#define IPL_DEVICE 0x10400
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#define INITRD_START 0x10408
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#define INITRD_SIZE 0x10410
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#define OLDMEM_BASE 0x10418
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#define OLDMEM_SIZE 0x10420
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#define COMMAND_LINE 0x10480
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_S390_SETUP_H */
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