The expanded interface allows specifying sizes on a per-device/per-bus path granularity. Signed-off-by: Jon Derrick <jonathan.derrick@xxxxxxxxx> --- Documentation/admin-guide/kernel-parameters.txt | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 533ff5c..8e4c129 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3142,11 +3142,24 @@ 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. + hpiosize= + Format: + <nn[KMG]> + <nn[KMG]>@][<domain>:]<bus>[:<slot>.<func>][; ...] + <nn[KMG]>@]pci:<vendor>:<device>\ + [:<subvendor>:<subdevice>][; ...] + The fixed amount of bus space which is reserved + for the matching hotplug bridge(s)'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. + hpmemsize= + Format: + <nn[KMG]>[P] + <nn[KMG]>[P]@][<domain>:]<bus>[:<slot>.<func>][; ...] + <nn[KMG]>[P]@]pci:<vendor>:<device>\ + [:<subvendor>:<subdevice>][; ...] + The fixed amount of bus space which is reserved + for the matching hotplug bridge(s)'s memory window. + 'P' specifies prefetchable. Default size is 2 megabytes. hpbussize=nn The minimum amount of additional bus numbers reserved for buses below a hotplug bridge. -- 1.8.3.1
