FS#29438 - [linux] enable MTRR cleanup by default
Attached to Project:
Arch Linux
Opened by Jan Alexander Steffens (heftig) - Friday, 13 April 2012, 20:44 GMT
Last edited by Tobias Powalowski (tpowa) - Monday, 16 April 2012, 08:23 GMT
Opened by Jan Alexander Steffens (heftig) - Friday, 13 April 2012, 20:44 GMT
Last edited by Tobias Powalowski (tpowa) - Monday, 16 April 2012, 08:23 GMT
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Details
This should allow some devices to enable write-combining for
the graphics card, if it otherwise couldn't. At least my old
Thinkpad X61 needed it.
AFAIK, it won't hurt if it's not needed. |
This task depends upon
The question is: is this desirable for all systems? I've seen reports on MTRR cleanup failing because it needs additional options anyways. You can enable mtrr cleanup by adding "enable_mtrr_cleanup" to the kernel boot line. That boot option doesn't require any changes to our current kernel configuration.