On Thu, 2015-10-08 at 14:38 -0700, Yinghai Lu wrote: > From 5b2854155 (PCI: Restrict 64-bit prefetchable bridge windows to 64-bit > resources), we change the logic for pref mmio allocation: > When bridge pref support mmio64, we will only put children pref > that support mmio64 into it, and will put children pref mmio32 > into bridge's non-pref mmio32. > > That could leave bridge pref bar not used when that pref bar is mmio64, > and children res only has mmio32. > Also could have allocation failure when non-pref mmio32 is not big > enough space for those children pref mmio32. > > That is not rational when the host bridge does not 64bit mmio above 4g > at all. > > The patch restore to old logic: > when host bridge does not have has_mem64, put children pref mmio64 and > pref mmio32 all under bridges pref bars. > > Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx> Tested on sparc platforms Tested-by: Khalid Aziz <khalid.aziz@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
