diff options
| author | Heiko Stuebner <heiko@sntech.de> | 2022-05-11 21:29:12 +0200 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-05-11 21:36:31 -0700 |
| commit | a8e910168bbad5c901202727470e601eb2489ec1 (patch) | |
| tree | 52b0a290b18ae5e879f8d01b013e10a2097bd717 /arch/riscv/include/asm/alternative.h | |
| parent | d14ca1f8d3039970e812fec1f01e7b46b62cc5fc (diff) | |
riscv: implement module alternatives
This allows alternatives to also be applied when loading modules
and follows the implementation of other architectures (e.g. arm64).
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Link: https://lore.kernel.org/r/20220511192921.2223629-4-heiko@sntech.de
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include/asm/alternative.h')
| -rw-r--r-- | arch/riscv/include/asm/alternative.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/alternative.h b/arch/riscv/include/asm/alternative.h index 0ff550667e94..0859529ff08e 100644 --- a/arch/riscv/include/asm/alternative.h +++ b/arch/riscv/include/asm/alternative.h @@ -20,8 +20,10 @@ #include <asm/hwcap.h> #define RISCV_ALTERNATIVES_BOOT 0 /* alternatives applied during regular boot */ +#define RISCV_ALTERNATIVES_MODULE 1 /* alternatives applied during module-init */ void __init apply_boot_alternatives(void); +void apply_module_alternatives(void *start, size_t length); struct alt_entry { void *old_ptr; /* address of original instruciton or data */ @@ -43,6 +45,7 @@ void sifive_errata_patch_func(struct alt_entry *begin, struct alt_entry *end, #else /* CONFIG_RISCV_ALTERNATIVE */ static inline void apply_boot_alternatives(void) { } +static inline void apply_module_alternatives(void *start, size_t length) { } #endif /* CONFIG_RISCV_ALTERNATIVE */ |