dma-mapping: alpha: use include/linux/pci-dma-compat.h

This converts Alpha to use include/linux/pci-dma-compat.h.  Alpha is the
only architecutre that implements the PCI DMA API in the own way.  That
makes it difficult to implement the generic DMA API via the PCI bus
specific DMA API.

The generic DMA API calls the PCI DMA API implementation in
arch/alpha/kernel/pci_iommu.c on non Jensen systems.  It calls the DMA API
in arch/alpha/kernel/pci-noop.c on Jensen systems.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Greg KH <greg@kroah.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 759f49d1248d..75291fdd379f 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -10,6 +10,7 @@ config ALPHA
         select HAVE_OPROFILE
         select HAVE_SYSCALL_WRAPPERS
         select HAVE_PERF_EVENTS
+        select HAVE_DMA_ATTRS
         help
           The Alpha is a 64-bit general-purpose processor designed and
           marketed by the Digital Equipment Corporation of blessed memory,