From 5d57c31e5790d44905af0459a21086dbad167d26 Mon Sep 17 00:00:00 2001 From: Zhang Le Date: Wed, 15 Apr 2009 17:01:52 +0800 Subject: 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 Signed-off-by: Ralf Baechle --- arch/mips/include/asm/hazards.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/mips') diff --git a/arch/mips/include/asm/hazards.h b/arch/mips/include/asm/hazards.h index a12d971db4f9..0eaf77ffbc4f 100644 --- a/arch/mips/include/asm/hazards.h +++ b/arch/mips/include/asm/hazards.h @@ -138,8 +138,9 @@ do { \ __instruction_hazard(); \ } while (0) -#elif defined(CONFIG_CPU_R10000) || defined(CONFIG_CPU_CAVIUM_OCTEON) || \ - defined(CONFIG_CPU_R5500) || defined(CONFIG_MACH_ALCHEMY) +#elif defined(CONFIG_MACH_ALCHEMY) || defined(CONFIG_CPU_CAVIUM_OCTEON) || \ + defined(CONFIG_CPU_LOONGSON2) || defined(CONFIG_CPU_R10000) || \ + defined(CONFIG_CPU_R5500) /* * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer. -- cgit v1.2.2