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[ARM] Fix PCI_DMA_BUS_IS_PHYS for ARM 

PCI_DMA_BUS_IS_PHYS was defined to be zero, which meant we ignored
the DMA mask for IDE and SCSI transfers.  This is wrong - we have
no DMA translation hardware.  We want to obey DMA masks so that the
block layer performs bouncing itself.

Reported-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2008-09-13 21:23:06 +01:00 committed by Russell King
parent 68ddb1d963
commit 88c381bf09
1 changed files with 1 additions and 1 deletions
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2
arch/arm/include/asm/pci.h
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@ -30,7 +30,7 @@ static inline void pcibios_penalize_isa_irq(int irq, int active)
* The networking and block device layers use this boolean for bounce
* buffer decisions.
*/
#define PCI_DMA_BUS_IS_PHYS (0)
#define PCI_DMA_BUS_IS_PHYS (1)
/*
* Whether pci_unmap_{single,page} is a nop depends upon the