net: calxedaxgmac: use raw i/o accessors in rx and tx paths

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The standard readl/writel accessors involve a spinlock and cache sync
operation on ARM platforms with an outer cache. Only DMA triggering
accesses need this, so use the raw variants instead in the critical paths.

The relaxed variants would be more appropriate, but don't exist on all
arches.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Rob Herring 2012-11-05 06:22:21 +00:00 • committed by David S. Miller

parent b821bd8e5a

commit 0ec6d343f7

1 changed files with 6 additions and 6 deletions

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drivers/net/ethernet/calxeda/xgmac.c

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