https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217852
Bug ID: 217852
Summary: Add tunables to radeonkms, so that it works on
PowerMac G5
Product: Base System
Version: CURRENT
Hardware: powerpc
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: hiroo.ono+free...@gmail.com
Created attachment 180886
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=180886&action=edit
add tunables equivalent to Linux's module parameters.
On a early PowerMac G5 DP, to get the radeonkms kernel module loaded and
working properly, we need to force Radeon 9600 card to PCI mode.
On Linux, it is done by specifying a module parameter, but its FreeBSD
equvalent, tunable is not defined in sys/dev/drm2/radeon/radeon_drv.c.
Attached patch defines tunables for each "module parameters" of Linux in
radeon_drv.c.
Tested on a 12.0-CURRENT/powerpc64 r313561.
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