From 88c381bf09d7b3f2c2e8749150087aff2c434be4 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Sat, 13 Sep 2008 21:23:06 +0100
Subject: [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>
---
arch/arm/include/asm/pci.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'arch/arm/include/asm')
diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h
index 721c03d..918d0cb 100644
--- a/arch/arm/include/asm/pci.h
+++ b/arch/arm/include/asm/pci.h
@@ -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
--
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