arch/powerpc/kernel/setup.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Prototypes for functions that are shared between setup_(32|64|common).c
   4  *
   5  * Copyright 2016 Michael Ellerman, IBM Corporation.
   6  */
   7
   8 #ifndef __ARCH_POWERPC_KERNEL_SETUP_H
   9 #define __ARCH_POWERPC_KERNEL_SETUP_H
  10
  11 void initialize_cache_info(void);
  12 void irqstack_early_init(void);
  13
  14 #ifdef CONFIG_PPC32
  15 void setup_power_save(void);
  16 #else
  17 static inline void setup_power_save(void) { };
  18 #endif
  19
  20 #if defined(CONFIG_PPC64) && defined(CONFIG_SMP)
  21 void check_smt_enabled(void);
  22 #else
  23 static inline void check_smt_enabled(void) { };
  24 #endif
  25
  26 #if defined(CONFIG_PPC_BOOK3E) && defined(CONFIG_SMP)
  27 void setup_tlb_core_data(void);
  28 #else
  29 static inline void setup_tlb_core_data(void) { };
  30 #endif
  31
  32 #if defined(CONFIG_PPC_BOOK3E) || defined(CONFIG_BOOKE) || defined(CONFIG_40x)
  33 void exc_lvl_early_init(void);
  34 #else
  35 static inline void exc_lvl_early_init(void) { };
  36 #endif
  37
  38 #if defined(CONFIG_PPC64) || defined(CONFIG_VMAP_STACK)
  39 void emergency_stack_init(void);
  40 #else
  41 static inline void emergency_stack_init(void) { };
  42 #endif
  43
  44 #ifdef CONFIG_PPC64
  45 u64 ppc64_bolted_size(void);
  46
  47 /* Default SPR values from firmware/kexec */
  48 extern unsigned long spr_default_dscr;
  49 #endif
  50
  51 /*
  52  * Having this in kvm_ppc.h makes include dependencies too
  53  * tricky to solve for setup-common.c so have it here.
  54  */
  55 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
  56 void kvm_cma_reserve(void);
  57 #else
  58 static inline void kvm_cma_reserve(void) { };
  59 #endif
  60
  61 #ifdef CONFIG_TAU
  62 u32 cpu_temp(unsigned long cpu);
  63 u32 cpu_temp_both(unsigned long cpu);
  64 u32 tau_interrupts(unsigned long cpu);
  65 #endif /* CONFIG_TAU */
  66
  67 #endif /* __ARCH_POWERPC_KERNEL_SETUP_H */