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2007-03-19[SPARC64]: store-init needs trailing membar.David S. Miller
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 <davem@davemloft.net>
2006-03-20[SPARC64]: Fix branch signedness bug in all code patching.David S. Miller
The bug that hit SUN4V TLB patching exists elsewhere. Make sure we cure all such cases. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Niagara copy/clear page.David S. Miller
Happily we have no D-cache aliasing issues on these chips, so the implementation is very straightforward. Add a stub in bootup which will be where the patching calls will be made for niagara/sun4v/hypervisor. Signed-off-by: David S. Miller <davem@davemloft.net>