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[POWERPC] Add __read_mostly support for powerpc 

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Tony Breeds 2007-07-04 14:04:31 +10:00 committed by Paul Mackerras
parent fc9069fe56
commit bd67fcf9ba
2 changed files with 10 additions and 0 deletions
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6
arch/powerpc/kernel/vmlinux.lds.S
View File

@ -7,6 +7,7 @@
#define PROVIDE32(x) PROVIDE(x)
#endif
#include <asm-generic/vmlinux.lds.h>
#include <asm/cache.h>
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 = .;

4
include/asm-powerpc/cache.h
View File

@ -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 */