PCI: Allocate 64-bit BARs above 4G when possible

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Try to allocate space for 64-bit BARs above 4G first, to preserve the space
below 4G for 32-bit BARs.  If there's no space above 4G available, fall
back to allocating anywhere.

[bhelgaas: reworked starting from http://lkml.kernel.org/r/1387485843-17403-2-git-send-email-yinghai@kernel.org]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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Yinghai Lu 2013-12-20 10:55:44 -07:00 • committed by Bjorn Helgaas

parent f75b99d5a7

commit d56dbf5bab

1 changed files with 13 additions and 3 deletions

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drivers/pci/bus.c

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