linux_dsm_epyc7002/arch/powerpc/kernel/setup.h
Nicholas Piggin 1696d0fb7f powerpc/64: Set DSCR default initially from SPR
Take the DSCR value set by firmware as the dscr_default value,
rather than zero.

POWER9 recommends DSCR default to a non-zero value.

Signed-off-by: From: Nicholas Piggin <npiggin@gmail.com>
[mpe: Make record_spr_defaults() __init]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-11-10 22:11:35 +11:00

65 lines
1.6 KiB
C

/*
* Prototypes for functions that are shared between setup_(32|64|common).c
*
* Copyright 2016 Michael Ellerman, IBM Corporation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef __ARCH_POWERPC_KERNEL_SETUP_H
#define __ARCH_POWERPC_KERNEL_SETUP_H
void initialize_cache_info(void);
void irqstack_early_init(void);
#ifdef CONFIG_PPC32
void setup_power_save(void);
#else
static inline void setup_power_save(void) { };
#endif
#if defined(CONFIG_PPC64) && defined(CONFIG_SMP)
void check_smt_enabled(void);
#else
static inline void check_smt_enabled(void) { };
#endif
#if defined(CONFIG_PPC_BOOK3E) && defined(CONFIG_SMP)
void setup_tlb_core_data(void);
#else
static inline void setup_tlb_core_data(void) { };
#endif
#if defined(CONFIG_PPC_BOOK3E) || defined(CONFIG_BOOKE) || defined(CONFIG_40x)
void exc_lvl_early_init(void);
#else
static inline void exc_lvl_early_init(void) { };
#endif
#ifdef CONFIG_PPC64
void emergency_stack_init(void);
#else
static inline void emergency_stack_init(void) { };
#endif
#ifdef CONFIG_PPC64
void record_spr_defaults(void);
#else
static inline void record_spr_defaults(void) { };
#endif
/*
* Having this in kvm_ppc.h makes include dependencies too
* tricky to solve for setup-common.c so have it here.
*/
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
void kvm_cma_reserve(void);
#else
static inline void kvm_cma_reserve(void) { };
#endif
#endif /* __ARCH_POWERPC_KERNEL_SETUP_H */