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* 64 bit address to a pcie card
@ 2012-07-04  6:33 sumit chaudhary
  2012-07-04 13:59 ` Bjorn Helgaas
  0 siblings, 1 reply; 7+ messages in thread
From: sumit chaudhary @ 2012-07-04  6:33 UTC (permalink / raw)
  To: linux-pci

Hi,
I have a 64 bit PCIe card that is connected to 64 bit PC running
ubuntu (Linux ubuntu 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7
14:56:25 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux). Linux enumerate
this PCIe card and assign 64 bit addresses to 64 bit BARS.

Problem is that higher 4 bytes of these addresses are zero, even if
they are 64 bit address
they lies in 32 bit range.

Is it somehow possible to assign real 64 bit addresses ?

This is lspci output on my ubuntu PC.

Region 0: Memory at fddff000 (64-bit, non-prefetchable) [size=4K]
Region 2: Memory at fd000000 (64-bit, prefetchable) [size=8M]
Region 4: Memory at fc800000 (64-bit, prefetchable) [size=8M]

Regards,
Flyingbee.

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2012-07-09  8:41 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-07-04  6:33 64 bit address to a pcie card sumit chaudhary
2012-07-04 13:59 ` Bjorn Helgaas
     [not found]   ` <CAJkVMNpZaMKm8tc+axdOBySpp68_j=EegEUOO+B=cYudsxNCgw@mail.gmail.com>
2012-07-05 15:16     ` Bjorn Helgaas
2012-07-06  0:14       ` Yinghai Lu
2012-07-06  3:49         ` Bjorn Helgaas
2012-07-09  5:39       ` sumit chaudhary
2012-07-09  8:41         ` Yinghai Lu

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