Messages in this thread | | | From | "Luis R. Rodriguez" <> | Date | Wed, 20 May 2015 14:06:15 -0700 | Subject | Re: [PATCH v3 1/4] pci: add pci_ioremap_wc_bar() |
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On Wed, May 20, 2015 at 2:02 PM, Bjorn Helgaas <bhelgaas@google.com> wrote: > On Tue, Apr 21, 2015 at 01:20:31PM -0700, Luis R. Rodriguez wrote: >> From: "Luis R. Rodriguez" <mcgrof@suse.com> >> >> This lets drivers take advantage of PAT when available. This >> should help with the transition of converting video drivers over >> to ioremap_wc() to help with the goal of eventually using >> _PAGE_CACHE_UC over _PAGE_CACHE_UC_MINUS on x86 on >> ioremap_nocache() (de33c442e titled "x86 PAT: fix performance >> drop for glx, use UC minus for ioremap(), ioremap_nocache() and >> pci_mmap_page_range()") >> >> Cc: Toshi Kani <toshi.kani@hp.com> >> Cc: Bjorn Helgaas <bhelgaas@google.com> >> Cc: Suresh Siddha <sbsiddha@gmail.com> >> Cc: Ingo Molnar <mingo@elte.hu> >> Cc: Thomas Gleixner <tglx@linutronix.de> >> Cc: Juergen Gross <jgross@suse.com> >> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> >> Cc: Andy Lutomirski <luto@amacapital.net> >> Cc: Dave Airlie <airlied@redhat.com> >> Cc: Antonino Daplas <adaplas@gmail.com> >> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> >> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> >> Cc: Ville Syrjälä <syrjala@sci.fi> >> Cc: Mel Gorman <mgorman@suse.de> >> Cc: Vlastimil Babka <vbabka@suse.cz> >> Cc: Borislav Petkov <bp@suse.de> >> Cc: Davidlohr Bueso <dbueso@suse.de> >> Cc: linux-fbdev@vger.kernel.org >> Cc: linux-kernel@vger.kernel.org >> Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> > > I don't have any objection to this, and I can apply the follow-on patches > as well, given the appropriate acks and prerequisite patches (ioremap_wc() > implementation).
OK great, ioremap_wc() has been upstream for a long time. So I'll wait for Tomi's review of the fbdev changes. Once I get those I can resend in a series bundled together with the other pending pci / fbdev changes we just discussed to make things clear.
Luis
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