kernel/git/stable/linux.git/arch/sparc64/lib/NGbzero.S, branch master

sparc,sparc64: unify lib/

2008-12-04T17:17:19+00:00

o Renamed files in sparc64 to _64.S when identical to sparc32 files. o iomap.c were equal for sparc32 and sparc64 o adjusted sparc/Makefile now we have only one lib/ Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller

[SPARC64]: Fix inconsistent .section usage in lib/

2008-02-01T03:32:44+00:00

A few places missed the "a" specifier for the __ex_table section. Add these so we avoid generation an additional section at link time. Latest modpost would otherwise complain like this: WARNING: vmlinux.o (__ex_table.2): section name inconsistency. (.[number]+) following section name. Did you forget to use "ax"/"aw" in a .S file? Note that for example contains section definitions for use in .S files. WARNING: vmlinux.o (__ex_table.4): section name inconsistency. (.[number]+) following section name. Did you forget to use "ax"/"aw" in a .S file? Note that for example contains section definitions for use in .S files. Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller

[SPARC64]: store-init needs trailing membar.

2007-03-19T20:27:33+00:00

The manual says that it is required and we actually have crash reports where loads see stale data due to not having membars here. In one case the networking does: memset(skb, 0, offsetof(struct sk_buff, truesize)); and then some code later checks skb->nohdr for zero, but it's still the value that was there before the memset(). Note that arch/sparc64/lib/xor.S already got this right. Signed-off-by: David S. Miller

[SPARC64]: Optimized TSB table initialization.

2006-03-20T09:16:41+00:00

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

[SPARC64]: Niagara optimized memset/bzero/clear_user.

2006-03-20T09:13:50+00:00

Signed-off-by: David S. Miller