From bb8646d8340fa7c1b66a037428e39f85f8738f0a Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 18 Mar 2006 23:55:11 -0800 Subject: [SPARC64]: Optimized TSB table initialization. We only need to write an invalid tag every 16 bytes, so taking advantage of this can save many instructions compared to the simple memset() call we make now. A prefetching implementation is implemented for sun4u and a block-init store version if implemented for Niagara. The next trick is to be able to perform an init and a copy_tsb() in parallel when growing a TSB table. Signed-off-by: David S. Miller --- arch/sparc64/lib/NGbzero.S | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/sparc64/lib/NGbzero.S') diff --git a/arch/sparc64/lib/NGbzero.S b/arch/sparc64/lib/NGbzero.S index fef584f745dc..e86baece5cc8 100644 --- a/arch/sparc64/lib/NGbzero.S +++ b/arch/sparc64/lib/NGbzero.S @@ -157,6 +157,7 @@ niagara_patch_bzero: NG_DO_PATCH(memset, NGmemset) NG_DO_PATCH(__bzero, NGbzero) NG_DO_PATCH(__clear_user, NGclear_user) + NG_DO_PATCH(tsb_init, NGtsb_init) retl nop .size niagara_patch_bzero,.-niagara_patch_bzero -- cgit v1.2.1