/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_POWERPC_SETUP_H #define _ASM_POWERPC_SETUP_H #include <uapi/asm/setup.h> #ifndef __ASSEMBLY__ extern void ppc_printk_progress(char *s, unsigned short hex); extern unsigned int rtas_data; extern unsigned long long memory_limit; extern bool init_mem_is_free; extern unsigned long klimit; extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask); struct device_node; extern void note_scsi_host(struct device_node *, void *); /* Used in very early kernel initialization. */ extern unsigned long reloc_offset(void); extern unsigned long add_reloc_offset(unsigned long); extern void reloc_got2(unsigned long); #define PTRRELOC(x) ((typeof(x)) add_reloc_offset((unsigned long)(x))) void check_for_initrd(void); void mem_topology_setup(void); void initmem_init(void); void setup_panic(void); #define ARCH_PANIC_TIMEOUT 180 #ifdef CONFIG_PPC_PSERIES extern void pseries_enable_reloc_on_exc(void); extern void pseries_disable_reloc_on_exc(void); extern void pseries_big_endian_exceptions(void); extern void pseries_little_endian_exceptions(void); #else static inline void pseries_enable_reloc_on_exc(void) {} static inline void pseries_disable_reloc_on_exc(void) {} static inline void pseries_big_endian_exceptions(void) {} static inline void pseries_little_endian_exceptions(void) {} #endif /* CONFIG_PPC_PSERIES */ void rfi_flush_enable(bool enable); /* These are bit flags */ enum l1d_flush_type { L1D_FLUSH_NONE = 0x1, L1D_FLUSH_FALLBACK = 0x2, L1D_FLUSH_ORI = 0x4, L1D_FLUSH_MTTRIG = 0x8, }; void setup_rfi_flush(enum l1d_flush_type, bool enable); void do_rfi_flush_fixups(enum l1d_flush_type types); #ifdef CONFIG_PPC_BARRIER_NOSPEC void setup_barrier_nospec(void); #else static inline void setup_barrier_nospec(void) { }; #endif void do_barrier_nospec_fixups(bool enable); extern bool barrier_nospec_enabled; #ifdef CONFIG_PPC_BARRIER_NOSPEC void do_barrier_nospec_fixups_range(bool enable, void *start, void *end); #else static inline void do_barrier_nospec_fixups_range(bool enable, void *start, void *end) { }; #endif #ifdef CONFIG_PPC_FSL_BOOK3E void setup_spectre_v2(void); #else static inline void setup_spectre_v2(void) {}; #endif void do_btb_flush_fixups(void); #endif /* !__ASSEMBLY__ */ #endif /* _ASM_POWERPC_SETUP_H */