[AVR32] Optimize the TLB miss handler

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Reorder some instructions and change the register usage to reduce
the number of pipeline stalls. Also use the bfextu and bfins
instructions for bitfield manipulations instead of shifting and
masking.

This makes gzipping a 80MB file approximately 2% faster.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

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Haavard Skinnemoen 2007-03-14 13:59:13 +01:00

parent 9ca20a8366

commit c0c3e81608

1 changed files with 24 additions and 30 deletions

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arch/avr32/kernel/entry-avr32b.S

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