MIPS: Allow R2 CPUs to turn off generation of 'ehb' instructions.

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Some CPUs do not need ehb instructions after writing CP0 registers.
By allowing ehb generation to be overridden in
cpu-feature-overrides.h, we can save a few instructions in the TLB
handler hot paths.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

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David Daney 2009-05-12 12:41:53 -07:00 • committed by Ralf Baechle

parent 95affdda9b

commit 41f0e4d041

2 changed files with 6 additions and 1 deletions

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4

arch/mips/include/asm/cpu-features.h

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3

arch/mips/mm/tlbex.c

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