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authorRalf Baechle <ralf@linux-mips.org>2012-10-16 22:13:06 +0200
committerRalf Baechle <ralf@linux-mips.org>2012-10-16 22:22:23 +0200
commit359187d647a7a7813444ff5932d0b862f970bb0f (patch)
tree1516d43b7b33e03f8b531552764a3e8406dde8bf /arch/mips/Kconfig
parent02a5417751c31cd64197652c000a5ab0d3261465 (diff)
MIPS: R5000: Fix TLB hazard handling.
R5000 and the Nevada CPUs (RM5230, RM5231, RM5260, RM5261, RM5270 and RM5271) are basically the same CPU core and all are documented to require two instructions separating a write to c0_pagemask, c0_entryhi, c0_entrylo0, c0_entrylo1 or c0_index. So far we were only providing on cycle before / after a TLBR/TLBWI for R5000 but 3 cycles before and 1 cycles after for the Nevadas. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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