Messages in this thread | | | Date | Mon, 11 Jun 2012 17:04:26 +0530 | Subject | 64 bit address to a pcie card | From | sumit chaudhary <> |
| |
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]
Please personally CC'ed the answers/comment.
Regards, sumit.
| |