Messages in this thread | | | From | "Luis R. Rodriguez" <> | Date | Wed, 29 Apr 2015 12:50:40 -0700 | Subject | Re: [PATCH v3] fusion: remove dead MTRR code |
| |
On Tue, Apr 21, 2015 at 1:46 PM, Luis R. Rodriguez <mcgrof@do-not-panic.com> wrote: > From: "Luis R. Rodriguez" <mcgrof@suse.com> > > If and when this gets enabled the driver could should split > up IO memory space properly and that is quite a bit of work. > Just remove the uncommented dead MTRR code then. > > There are a few motivations for this: > > a) Take advantage of PAT when available > > b) Help bury MTRR code away, MTRR is architecture specific and on > x86 its replaced by PAT > > c) Help with the goal of eventually using _PAGE_CACHE_UC over > _PAGE_CACHE_UC_MINUS on x86 on ioremap_nocache() (see commit > de33c442e titled "x86 PAT: fix performance drop for glx, > use UC minus for ioremap(), ioremap_nocache() and > pci_mmap_page_range()")
Hey folks, who's tree should this go through if agreeable?
Luis
| |