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Date: Mon, 13 Oct 2008 11:49:04 +1100 From: Peter Chubb <peterc@...ato.unsw.edu.au> To: matthew@....cx, jbarnes@...tuousgeek.org, linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org Subject: [patch] fix 64-vbit prefetchable memory resource BARs 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@...ato.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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