| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_POWERPC_SETUP_H |
| 3 | #define _ASM_POWERPC_SETUP_H |
| 4 | |
| 5 | #include <uapi/asm/setup.h> |
| 6 | |
| 7 | #ifndef __ASSEMBLY__ |
| 8 | extern void ppc_printk_progress(char *s, unsigned short hex); |
| 9 | |
| 10 | extern unsigned int rtas_data; |
| 11 | extern unsigned long long memory_limit; |
| 12 | extern bool init_mem_is_free; |
| 13 | extern unsigned long klimit; |
| 14 | extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask); |
| 15 | |
| 16 | struct device_node; |
| 17 | extern void note_scsi_host(struct device_node *, void *); |
| 18 | |
| 19 | /* Used in very early kernel initialization. */ |
| 20 | extern unsigned long reloc_offset(void); |
| 21 | extern unsigned long add_reloc_offset(unsigned long); |
| 22 | extern void reloc_got2(unsigned long); |
| 23 | |
| 24 | #define PTRRELOC(x) ((typeof(x)) add_reloc_offset((unsigned long)(x))) |
| 25 | |
| 26 | void check_for_initrd(void); |
| 27 | void mem_topology_setup(void); |
| 28 | void initmem_init(void); |
| 29 | void setup_panic(void); |
| 30 | #define ARCH_PANIC_TIMEOUT 180 |
| 31 | |
| 32 | #ifdef CONFIG_PPC_PSERIES |
| 33 | extern void pseries_enable_reloc_on_exc(void); |
| 34 | extern void pseries_disable_reloc_on_exc(void); |
| 35 | extern void pseries_big_endian_exceptions(void); |
| 36 | extern void pseries_little_endian_exceptions(void); |
| 37 | #else |
| 38 | static inline void pseries_enable_reloc_on_exc(void) {} |
| 39 | static inline void pseries_disable_reloc_on_exc(void) {} |
| 40 | static inline void pseries_big_endian_exceptions(void) {} |
| 41 | static inline void pseries_little_endian_exceptions(void) {} |
| 42 | #endif /* CONFIG_PPC_PSERIES */ |
| 43 | |
| 44 | void rfi_flush_enable(bool enable); |
| 45 | |
| 46 | /* These are bit flags */ |
| 47 | enum l1d_flush_type { |
| 48 | L1D_FLUSH_NONE = 0x1, |
| 49 | L1D_FLUSH_FALLBACK = 0x2, |
| 50 | L1D_FLUSH_ORI = 0x4, |
| 51 | L1D_FLUSH_MTTRIG = 0x8, |
| 52 | }; |
| 53 | |
| 54 | void setup_rfi_flush(enum l1d_flush_type, bool enable); |
| 55 | void do_rfi_flush_fixups(enum l1d_flush_type types); |
| 56 | #ifdef CONFIG_PPC_BARRIER_NOSPEC |
| 57 | void setup_barrier_nospec(void); |
| 58 | #else |
| 59 | static inline void setup_barrier_nospec(void) { }; |
| 60 | #endif |
| 61 | void do_barrier_nospec_fixups(bool enable); |
| 62 | extern bool barrier_nospec_enabled; |
| 63 | |
| 64 | #ifdef CONFIG_PPC_BARRIER_NOSPEC |
| 65 | void do_barrier_nospec_fixups_range(bool enable, void *start, void *end); |
| 66 | #else |
| 67 | static inline void do_barrier_nospec_fixups_range(bool enable, void *start, void *end) { }; |
| 68 | #endif |
| 69 | |
| 70 | #endif /* !__ASSEMBLY__ */ |
| 71 | |
| 72 | #endif /* _ASM_POWERPC_SETUP_H */ |
| 73 | |