David S. Miller b445e26cbf [SPARC64]: Avoid membar instructions in delay slots. ... In particular, avoid membar instructions in the delay slot of a jmpl instruction. UltraSPARC-I, II, IIi, and IIe have a bug, documented in the UltraSPARC-IIi User's Manual, Appendix K, Erratum 51 The long and short of it is that if the IMU unit misses on a branch or jmpl, and there is a store buffer synchronizing membar in the delay slot, the chip can stop fetching instructions. If interrupts are enabled or some other trap is enabled, the chip will unwedge itself, but performance will suffer. We already had a workaround for this bug in a few spots, but it's better to have the entire tree sanitized for this rule. Signed-off-by: David S. Miller <davem@davemloft.net>		2005-06-27 15:42:04 -07:00
..
boot
kernel	[SPARC64]: Avoid membar instructions in delay slots.	2005-06-27 15:42:04 -07:00
lib	[SPARC64]: Avoid membar instructions in delay slots.	2005-06-27 15:42:04 -07:00
math-emu
mm	[SPARC64]: Avoid membar instructions in delay slots.	2005-06-27 15:42:04 -07:00
oprofile
prom
solaris	[SPARC64]: Fix cmsg length checks in Solaris emulation layer.	2005-06-21 15:39:22 -07:00
defconfig
Kconfig	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
Kconfig.debug
Makefile