76222808fc
We originally added asm-prototypes.h in commit42f5b4cacd("powerpc: Introduce asm-prototypes.h"). It's purpose was for prototypes of C functions that are only called from asm, in order to fix sparse warnings about missing prototypes. A few months later Nick added a different use case in commit4efca4ed05("kbuild: modversions for EXPORT_SYMBOL() for asm") for C prototypes for exported asm functions. This is basically the inverse of our original usage. Since then we've added various prototypes to asm-prototypes.h for both reasons, meaning we now need to unstitch it all. Dispatch prototypes of C functions into relevant headers and keep only the prototypes for functions defined in assembly. For the time being, leave prom_init() there because moving it into asm/prom.h or asm/setup.h conflicts with drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowrom.o This will be fixed later by untaggling asm/pci.h and asm/prom.h or by renaming the function in shadowrom.c Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/62d46904eca74042097acf4cb12c175e3067f3d1.1646413435.git.christophe.leroy@csgroup.eu
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/* 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 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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void __init 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 __init 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 __init 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 __init do_btb_flush_fixups(void);
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#ifdef CONFIG_PPC32
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unsigned long __init early_init(unsigned long dt_ptr);
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void __init machine_init(u64 dt_ptr);
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#endif
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void __init early_setup(unsigned long dt_ptr);
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void early_setup_secondary(void);
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#endif /* !__ASSEMBLY__ */
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#endif /* _ASM_POWERPC_SETUP_H */
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