diff options
| author | Yinghai Lu <yinghai@kernel.org> | 2009-04-23 20:48:32 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-06-11 12:04:06 -0700 |
| commit | 1f82de10d6b1d845155363c895c552e61b36b51a (patch) | |
| tree | 3e93b9d1c97ae48509133fbbec9c81b4823816a5 /include/linux/ioport.h | |
| parent | 67b5db6502ddd27d65dea43bf036abbd82d0dfc9 (diff) | |
| download | lwn-1f82de10d6b1d845155363c895c552e61b36b51a.tar.gz lwn-1f82de10d6b1d845155363c895c552e61b36b51a.zip | |
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 'include/linux/ioport.h')
| -rw-r--r-- | include/linux/ioport.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/ioport.h b/include/linux/ioport.h index 32e4b2f72294..786e7b8cece9 100644 --- a/include/linux/ioport.h +++ b/include/linux/ioport.h @@ -49,6 +49,8 @@ struct resource_list { #define IORESOURCE_SIZEALIGN 0x00020000 /* size indicates alignment */ #define IORESOURCE_STARTALIGN 0x00040000 /* start field is alignment */ +#define IORESOURCE_MEM_64 0x00100000 + #define IORESOURCE_EXCLUSIVE 0x08000000 /* Userland may not map this resource */ #define IORESOURCE_DISABLED 0x10000000 #define IORESOURCE_UNSET 0x20000000 |