Commit e354597c authored by Peter Chubb's avatar Peter Chubb Committed by Jesse Barnes

PCI: fix 64-vbit prefetchable memory resource BARs

Since patch 6ac665c6 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.
Reviewed-by: default avatarMatthew Wilcox <matthew@wil.cx>
Signed-off-by: default avatarPeter Chubb <peterc@gelato.unsw.edu.au>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
parent 557848c3
...@@ -217,7 +217,7 @@ static inline enum pci_bar_type decode_bar(struct resource *res, u32 bar) ...@@ -217,7 +217,7 @@ static inline enum pci_bar_type decode_bar(struct resource *res, u32 bar)
res->flags = bar & ~PCI_BASE_ADDRESS_MEM_MASK; 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_mem64;
return pci_bar_mem32; return pci_bar_mem32;
} }
......
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