diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 21c39ff2dc39..ae4acd84143d 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -7,6 +7,7 @@ #define PROVIDE32(x) PROVIDE(x) #endif #include +#include ENTRY(_stext) @@ -211,6 +212,11 @@ SECTIONS *(.data.cacheline_aligned) } + . = ALIGN(L1_CACHE_BYTES); + .data.read_mostly : { + *(.data.read_mostly) + } + . = ALIGN(PAGE_SIZE); __data_nosave : { __nosave_begin = .; diff --git a/include/asm-powerpc/cache.h b/include/asm-powerpc/cache.h index 642be62cf393..53507046a1b1 100644 --- a/include/asm-powerpc/cache.h +++ b/include/asm-powerpc/cache.h @@ -34,5 +34,9 @@ struct ppc64_caches { extern struct ppc64_caches ppc64_caches; #endif /* __powerpc64__ && ! __ASSEMBLY__ */ +#if !defined(__ASSEMBLY__) +#define __read_mostly __attribute__((__section__(".data.read_mostly"))) +#endif + #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_CACHE_H */