Re: [PATCH v2] ivtv: use arch_phys_wc_add() and require PAT disabled

On Mon, 2015-04-27 at 09:43 -0700, Luis R. Rodriguez wrote: > From: "Luis R. Rodriguez" > > We are burrying direct access to MTRR code support on > x86 in order to take advantage of PAT. In the future we > also want to make the default behaviour of ioremap_nocache() > to use strong UC, use of

[PATCH v2] ivtv: use arch_phys_wc_add() and require PAT disabled

From: "Luis R. Rodriguez" We are burrying direct access to MTRR code support on x86 in order to take advantage of PAT. In the future we also want to make the default behaviour of ioremap_nocache() to use strong UC, use of mtrr_add() on those systems would make write-combining void. In order to

[PATCH v2] ivtv: use arch_phys_wc_add() and require PAT disabled

From: Luis R. Rodriguez mcg...@suse.com We are burrying direct access to MTRR code support on x86 in order to take advantage of PAT. In the future we also want to make the default behaviour of ioremap_nocache() to use strong UC, use of mtrr_add() on those systems would make write-combining void.

Re: [PATCH v2] ivtv: use arch_phys_wc_add() and require PAT disabled

On Mon, 2015-04-27 at 09:43 -0700, Luis R. Rodriguez wrote: From: Luis R. Rodriguez mcg...@suse.com We are burrying direct access to MTRR code support on x86 in order to take advantage of PAT. In the future we also want to make the default behaviour of ioremap_nocache() to use strong UC,