Messages in this thread | | | Date | Mon, 28 Apr 2008 13:18:33 -0700 | From | "Yinghai Lu" <> | Subject | Re: [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v3 |
| |
On Mon, Apr 28, 2008 at 1:15 PM, Ingo Molnar <mingo@elte.hu> wrote: > > * Yinghai Lu <yhlu.kernel.send@gmail.com> wrote: > > > some BIOS like to use continus MTRR layout, and some X driver can not > > add WB entries for graphical cards when 4g or more RAM installed. > > > > the patch will change MTRR to discrete. > > > > mtrr_chunk_size= could be used to have smaller continuous block to > > hold holes. default is 256m, could be set according to size of > > graphics card memory. > > > > v2: fix -1 for UC checking > > > v3: default to disable, and need use enable_mtrr_cleanup to enable > > this feature > > skip the var state change warning. > > remove next_basek in range_to_mtrr() > > a boot option is often inconvenient though - could you perhaps also make > this a Kconfig option, with it defaulting to off? Something like > CONFIG_MTRR_SANITIZE=y or so? That way distros can make a conscious > decision as well whether they want this feature (for the Xorg they pick) > or not.
use disable_mtrr_cleanup and CONFIG_MTRR_SANITIZER?
YH
| |