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