Re: [Nouveau] [PATCH] drm/nouveau/dispnv04: Remove dead code

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On Fri, May 1, 2020 at 2:21 AM Ilia Mirkin <imirkin@xxxxxxxxxxxx> wrote:
>
> Interesting. I do remember seeing some snow on NV5's overlay at high
> resolutions. Wonder if it was because of this missing code...

What was the problem ? Does enabling this dead code will fix the problem ?

>
> On Thu, Apr 30, 2020 at 4:19 PM Souptick Joarder <jrdr.linux@xxxxxxxxx> wrote:
> >
> > These are dead code since 3.10. If there is no plan to use
> > it further, these can be removed forever.
> >
> > Signed-off-by: Souptick Joarder <jrdr.linux@xxxxxxxxx>
> > ---
> >  drivers/gpu/drm/nouveau/dispnv04/crtc.c | 28 ----------------------------
> >  1 file changed, 28 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/nouveau/dispnv04/crtc.c b/drivers/gpu/drm/nouveau/dispnv04/crtc.c
> > index 1f08de4..ad0ef7d 100644
> > --- a/drivers/gpu/drm/nouveau/dispnv04/crtc.c
> > +++ b/drivers/gpu/drm/nouveau/dispnv04/crtc.c
> > @@ -269,31 +269,11 @@ static void nv_crtc_calc_state_ext(struct drm_crtc *crtc, struct drm_display_mod
> >                 horizStart = horizTotal - 5;
> >                 horizEnd = horizTotal - 2;
> >                 horizBlankEnd = horizTotal + 4;
> > -#if 0
> > -               if (dev->overlayAdaptor && drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS)
> > -                       /* This reportedly works around some video overlay bandwidth problems */
> > -                       horizTotal += 2;
> > -#endif
> >         }
> >
> >         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
> >                 vertTotal |= 1;
> >
> > -#if 0
> > -       ErrorF("horizDisplay: 0x%X \n", horizDisplay);
> > -       ErrorF("horizStart: 0x%X \n", horizStart);
> > -       ErrorF("horizEnd: 0x%X \n", horizEnd);
> > -       ErrorF("horizTotal: 0x%X \n", horizTotal);
> > -       ErrorF("horizBlankStart: 0x%X \n", horizBlankStart);
> > -       ErrorF("horizBlankEnd: 0x%X \n", horizBlankEnd);
> > -       ErrorF("vertDisplay: 0x%X \n", vertDisplay);
> > -       ErrorF("vertStart: 0x%X \n", vertStart);
> > -       ErrorF("vertEnd: 0x%X \n", vertEnd);
> > -       ErrorF("vertTotal: 0x%X \n", vertTotal);
> > -       ErrorF("vertBlankStart: 0x%X \n", vertBlankStart);
> > -       ErrorF("vertBlankEnd: 0x%X \n", vertBlankEnd);
> > -#endif
> > -
> >         /*
> >         * compute correct Hsync & Vsync polarity
> >         */
> > @@ -492,14 +472,6 @@ static void nv_crtc_calc_state_ext(struct drm_crtc *crtc, struct drm_display_mod
> >         /* Except for rare conditions I2C is enabled on the primary crtc */
> >         if (nv_crtc->index == 0)
> >                 regp->crtc_eng_ctrl |= NV_CRTC_FSEL_I2C;
> > -#if 0
> > -       /* Set overlay to desired crtc. */
> > -       if (dev->overlayAdaptor) {
> > -               NVPortPrivPtr pPriv = GET_OVERLAY_PRIVATE(dev);
> > -               if (pPriv->overlayCRTC == nv_crtc->index)
> > -                       regp->crtc_eng_ctrl |= NV_CRTC_FSEL_OVERLAY;
> > -       }
> > -#endif
> >
> >         /* ADDRESS_SPACE_PNVM is the same as setting HCUR_ASI */
> >         regp->cursor_cfg = NV_PCRTC_CURSOR_CONFIG_CUR_LINES_64 |
> > --
> > 1.9.1
> >
> > _______________________________________________
> > Nouveau mailing list
> > Nouveau@xxxxxxxxxxxxxxxxxxxxx
> > https://lists.freedesktop.org/mailman/listinfo/nouveau
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