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authorYinghai Lu <yinghai@kernel.org>2009-04-23 20:48:32 -0700
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-06-11 12:04:06 -0700
commit1f82de10d6b1d845155363c895c552e61b36b51a (patch)
tree3e93b9d1c97ae48509133fbbec9c81b4823816a5 /arch/x86
parent67b5db6502ddd27d65dea43bf036abbd82d0dfc9 (diff)
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PCI/x86: don't assume prefetchable ranges are 64bit
We should not assign 64bit ranges to PCI devices that only take 32bit prefetchable addresses. Try to set IORESOURCE_MEM_64 in 64bit resource of pci_device/pci_bridge and make the bus resource only have that bit set when all devices under it support 64bit prefetchable memory. Use that flag to allocate resources from that range. Reported-by: Yannick <yannick.roehlly@free.fr> Reviewed-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/include/asm/pci.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index b51a1e8..927958d 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -130,6 +130,7 @@ extern void pci_iommu_alloc(void);
/* generic pci stuff */
#include <asm-generic/pci.h>
+#define PCIBIOS_MAX_MEM_32 0xffffffff
#ifdef CONFIG_NUMA
/* Returns the node based on pci bus */
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