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PCI: Document hpiosize= and hpmemsize= resource reservation parameters

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Document PCI hotplug resource reservation parameters hpiosize and
hpmemsize.  These parameters override default hotplug I/O size (256 bytes)
and default mem size (2M).

Signed-off-by: Yijing Wang <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
This commit is contained in:
Yijing Wang 2013-01-23 20:29:06 +08:00 • committed by Bjorn Helgaas
commit 8c8803c596
1 changed files with 6 additions and 0 deletions
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6
Documentation/kernel-parameters.txt
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@ -2248,6 +2248,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
the default.
off: Turn ECRC off
on: Turn ECRC on.
hpiosize=nn[KMG] The fixed amount of bus space which is
reserved for hotplug bridge's IO window.
Default size is 256 bytes.
hpmemsize=nn[KMG] The fixed amount of bus space which is
reserved for hotplug bridge's memory window.
Default size is 2 megabytes.
realloc= Enable/disable reallocating PCI bridge resources
if allocations done by BIOS are too small to
accommodate resources required by all child