x86_64: reserve TCEs with the same address as MEM regions

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This works around a bug where DMAs that have the same addresses as
some MEM regions do not go through. Not clear yet if this is due to a
mis-configuration or something deeper.

[akpm@linux-foundation.org: coding style fixlet]
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Muli Ben-Yehuda 2007-07-21 17:10:58 +02:00 • committed by Linus Torvalds

parent ddbd41b4e7

commit 07877cf6fd

1 changed files with 67 additions and 0 deletions

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arch/x86_64/kernel/pci-calgary.c

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