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authorRam Pai <linuxram@us.ibm.com>2011-07-07 14:19:10 -0400
committerJesse Barnes <jbarnes@virtuousgeek.org>2011-07-08 18:49:20 -0400
commitf483d3923dc3a6394c483e28ccb3fe700bdf399e (patch)
treeef487babd0ef104e1fa8323c23050d66096c0f3a /Documentation
parenta2fa83faf47b514ab947cea916d3691b66525073 (diff)
PCI: conditional resource-reallocation through kernel parameter pci=realloc
Multiple attempts to dynamically reallocate pci resources have unfortunately lead to regressions. Though we continue to fix the regressions and fine tune the dynamic-reallocation behavior, we have not reached a acceptable state yet. This patch provides a interim solution. It disables dynamic reallocation by default, but adds the ability to enable it through pci=realloc kernel command line parameter. Tested-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index fd248a31821..aa47be71df4 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2015,6 +2015,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
2015 the default. 2015 the default.
2016 off: Turn ECRC off 2016 off: Turn ECRC off
2017 on: Turn ECRC on. 2017 on: Turn ECRC on.
2018 realloc reallocate PCI resources if allocations done by BIOS
2019 are erroneous.
2018 2020
2019 pcie_aspm= [PCIE] Forcibly enable or disable PCIe Active State Power 2021 pcie_aspm= [PCIE] Forcibly enable or disable PCIe Active State Power
2020 Management. 2022 Management.