From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH v1 09/47] vidoe: fbdev: atyfb: remove and fix MTRR MMIO "hole" work around Date: Sat, 21 Mar 2015 11:15:14 +0200 Message-ID: <20150321091514.GA22926__48166.1383914345$1427098994$gmane$org@sci.fi> References: <1426893517-2511-1-git-send-email-mcgrof@do-not-panic.com> <1426893517-2511-10-git-send-email-mcgrof@do-not-panic.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1YZFV4-00037J-KT for xen-devel@lists.xenproject.org; Sat, 21 Mar 2015 09:15:22 +0000 Content-Disposition: inline In-Reply-To: <1426893517-2511-10-git-send-email-mcgrof@do-not-panic.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: "Luis R. Rodriguez" Cc: jgross@suse.com, Jean-Christophe Plagniol-Villard , linux-fbdev@vger.kernel.org, x86@kernel.org, suresh.b.siddha@intel.com, Antonino Daplas , Daniel Vetter , "Luis R. Rodriguez" , venkatesh.pallipadi@intel.com, linux-kernel@vger.kernel.org, luto@amacapital.net, xen-devel@lists.xenproject.org, mingo@redhat.com, Tomi Valkeinen , JBeulich@suse.com, hpa@zytor.com, airlied@redhat.com, tglx@linutronix.de, bp@suse.de, Linus Torvalds , Ingo Molnar List-Id: xen-devel@lists.xenproject.org On Fri, Mar 20, 2015 at 04:17:59PM -0700, Luis R. Rodriguez wrote: > diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/a= ty/atyfb_base.c > index 8025624..8875e56 100644 > --- a/drivers/video/fbdev/aty/atyfb_base.c > +++ b/drivers/video/fbdev/aty/atyfb_base.c > @@ -2630,21 +2630,10 @@ static int aty_init(struct fb_info *info) > = > #ifdef CONFIG_MTRR > par->mtrr_aper =3D -1; > - par->mtrr_reg =3D -1; > if (!nomtrr) { > - /* Cover the whole resource. */ > - par->mtrr_aper =3D mtrr_add(par->res_start, par->res_size, > + par->mtrr_aper =3D mtrr_add(info->fix.smem_start, > + info->fix.smem_len, > MTRR_TYPE_WRCOMB, 1); MTRRs need power of two size, so how is this supposed to work? > - if (par->mtrr_aper >=3D 0 && !par->aux_start) { > - /* Make a hole for mmio. */ > - par->mtrr_reg =3D mtrr_add(par->res_start + 0x800000 - > - GUI_RESERVE, GUI_RESERVE, > - MTRR_TYPE_UNCACHABLE, 1); > - if (par->mtrr_reg < 0) { > - mtrr_del(par->mtrr_aper, 0, 0); > - par->mtrr_aper =3D -1; > - } > - } > } > #endif > = > @@ -2776,10 +2765,6 @@ aty_init_exit: > par->pll_ops->set_pll(info, &par->saved_pll); > = > #ifdef CONFIG_MTRR > - if (par->mtrr_reg >=3D 0) { > - mtrr_del(par->mtrr_reg, 0, 0); > - par->mtrr_reg =3D -1; > - } > if (par->mtrr_aper >=3D 0) { > mtrr_del(par->mtrr_aper, 0, 0); > par->mtrr_aper =3D -1; > @@ -3466,7 +3451,7 @@ static int atyfb_setup_generic(struct pci_dev *pdev= , struct fb_info *info, > } > = > info->fix.mmio_start =3D raddr; > - par->ati_regbase =3D ioremap(info->fix.mmio_start, 0x1000); > + par->ati_regbase =3D ioremap_nocache(info->fix.mmio_start, 0x1000); > if (par->ati_regbase =3D=3D NULL) > return -ENOMEM; > = > @@ -3491,6 +3476,8 @@ static int atyfb_setup_generic(struct pci_dev *pdev= , struct fb_info *info, > info->fix.smem_start =3D addr; > info->fix.smem_len =3D 0x800000; > = > + aty_fudge_framebuffer_len(info); > + > info->screen_base =3D ioremap(info->fix.smem_start, info->fix.smem_len); > if (info->screen_base =3D=3D NULL) { > ret =3D -ENOMEM; > @@ -3563,6 +3550,7 @@ static int atyfb_pci_probe(struct pci_dev *pdev, > return -ENOMEM; > } > par =3D info->par; > + par->bus_type =3D PCI; > info->fix =3D atyfb_fix; > info->device =3D &pdev->dev; > par->pci_id =3D pdev->device; > @@ -3732,10 +3720,6 @@ static void atyfb_remove(struct fb_info *info) > #endif > = > #ifdef CONFIG_MTRR > - if (par->mtrr_reg >=3D 0) { > - mtrr_del(par->mtrr_reg, 0, 0); > - par->mtrr_reg =3D -1; > - } > if (par->mtrr_aper >=3D 0) { > mtrr_del(par->mtrr_aper, 0, 0); > par->mtrr_aper =3D -1; > -- = > 2.3.2.209.gd67f9d5.dirty > = > -- > To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- = Ville Syrj=E4l=E4 syrjala@sci.fi http://www.sci.fi/~syrjala/