diff options
Diffstat (limited to 'arch/parisc/kernel/alternative.c')
| -rw-r--r-- | arch/parisc/kernel/alternative.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/parisc/kernel/alternative.c b/arch/parisc/kernel/alternative.c index fa28c4c9f972..daa1e9047275 100644 --- a/arch/parisc/kernel/alternative.c +++ b/arch/parisc/kernel/alternative.c @@ -8,6 +8,7 @@ #include <asm/processor.h> #include <asm/sections.h> #include <asm/alternative.h> +#include <asm/cacheflush.h> #include <linux/module.h> @@ -107,5 +108,14 @@ void __init apply_alternatives_all(void) apply_alternatives((struct alt_instr *) &__alt_instructions, (struct alt_instr *) &__alt_instructions_end, NULL); + if (cache_info.dc_size == 0 && cache_info.ic_size == 0) { + pr_info("alternatives: optimizing cache-flushes.\n"); + static_branch_disable(&parisc_has_cache); + } + if (cache_info.dc_size == 0) + static_branch_disable(&parisc_has_dcache); + if (cache_info.ic_size == 0) + static_branch_disable(&parisc_has_icache); + set_kernel_text_rw(0); } |