Messages in this thread Patch in this message | | | Date | Mon, 13 Oct 2008 11:49:04 +1100 | From | Peter Chubb <> | Subject | [patch] fix 64-vbit prefetchable memory resource BARs |
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Since patch 6ac665c63dcac8fcec534a1d224ecbb8b867ad59 my infiniband controller hasn't worked. This is because it has 64-bit prefetchable memory, which was mistakenly being taken to be 32-bit memory. The resource flags in this case are PCI_BASE_ADDRESS_MEM_TYPE_64|PCI_BASE_ADDRESS_MEM_PREFETCH.
This patch checks only for the PCI_BASE_ADDRESS_MEM_TYPE_64 bit; thus whether the region is prefetchable or not is ignored. This fixes my Infiniband.
Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au>
Index: linux-2.6-git/drivers/pci/probe.c =================================================================== --- linux-2.6-git.orig/drivers/pci/probe.c 2008-10-13 10:49:46.012798465 +1100 +++ linux-2.6-git/drivers/pci/probe.c 2008-10-13 11:35:43.016329442 +1100 @@ -219,7 +219,7 @@ res->flags = bar & ~PCI_BASE_ADDRESS_MEM_MASK; - if (res->flags == PCI_BASE_ADDRESS_MEM_TYPE_64) + if (res->flags & PCI_BASE_ADDRESS_MEM_TYPE_64) return pci_bar_mem64; return pci_bar_mem32; }
-- Dr Peter Chubb http://www.gelato.unsw.edu.au peterc AT gelato.unsw.edu.au http://www.ertos.nicta.com.au ERTOS within National ICT Australia
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