MIPS: Loongson 2 needs no hazard barriers.
commit3ab482e19eea57ccb47ac969c5ee62f8f4b0dcdd
authorZhang Le <r0bertz@gentoo.org>
Wed, 15 Apr 2009 09:01:52 +0000 (15 17:01 +0800)
committerRalf Baechle <ralf@linux-mips.org>
Sat, 18 Apr 2009 12:17:45 +0000 (18 14:17 +0200)
treeabcc14fa11311acc1731fd50c86bcea1dc1b4f53
parent5f23c92fde3ffd949b8e518f6d01b202291eaa13
MIPS: Loongson 2 needs no hazard barriers.

Quoting from Loongson2FUserGuide.pdf:

5.22.1 Hazards
The processor detects most of the pipeline hazards in hardware, including
CP0 hazards and load hazards. No NOP instructions are required to correct
instruction sequences.

Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/mips/include/asm/hazards.h