linux/arch/sparc64
David S. Miller 816242da37 [SPARC64]: Add boot option to force UltraSPARC-III P-Cache on.
Older UltraSPARC-III chips have a P-Cache bug that makes us disable it
by default at boot time.

However, this does hurt performance substantially, particularly with
memcpy(), and the bug is _incredibly_ obscure.  I have never seen it
triggered in practice, ever.

So provide a "-P" boot option that forces the P-Cache on.  It taints
the kernel, so if it does trigger and cause some data corruption or
OOPS, we will find out in the logs that this option was on when it
happened.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-23 15:52:08 -07:00
..
boot Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kernel [SPARC64]: Add boot option to force UltraSPARC-III P-Cache on. 2005-05-23 15:52:08 -07:00
lib Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
math-emu Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mm [SPARC64]: Kill useless __pte_alloc_one_kernel indirection 2005-05-05 14:27:56 -07:00
oprofile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
prom Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
solaris Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
defconfig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig [PATCH] missing dependency on sparc64 2005-04-24 12:28:35 -07:00
Kconfig.debug Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00