[PATCH xf86-video-amdgpu] If glamor is too old for depth 30, fall back to ShadowFB

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On Wed, Feb 14, 2018 at 1:09 PM, Michel Dänzer <michel at daenzer.net> wrote:
> From: Michel Dänzer <michel.daenzer at amd.com>
>
> Instead of not starting up at all.
>
> Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  src/amdgpu_kms.c | 16 +++++++++-------
>  1 file changed, 9 insertions(+), 7 deletions(-)
>
> diff --git a/src/amdgpu_kms.c b/src/amdgpu_kms.c
> index 15adb2938..e1aae9952 100644
> --- a/src/amdgpu_kms.c
> +++ b/src/amdgpu_kms.c
> @@ -1083,14 +1083,7 @@ static Bool AMDGPUPreInitVisual(ScrnInfoPtr pScrn)
>         case 15:
>         case 16:
>         case 24:
> -               break;
> -
>         case 30:
> -               if (xorgGetVersion() < XORG_VERSION_NUMERIC(1,19,99,1,0)) {
> -                       xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
> -                                  "Depth 30 requires Xorg >= 1.19.99.1\n");
> -                       return FALSE;
> -               }
>                 break;
>
>         default:
> @@ -1173,6 +1166,14 @@ static Bool AMDGPUPreInitAccel_KMS(ScrnInfoPtr pScrn)
>                         use_glamor = FALSE;
>  #endif
>
> +               if (pScrn->depth == 30 && use_glamor &&
> +                   xorgGetVersion() < XORG_VERSION_NUMERIC(1,19,99,1,0)) {
> +                       xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
> +                                  "Depth 30 is not supported by GLAMOR with "
> +                                  "Xorg < 1.19.99.1\n");
> +                       goto shadowfb;
> +               }
> +
>  #ifdef DRI2
>                 info->dri2.available = ! !xf86LoadSubModule(pScrn, "dri2");
>  #endif
> @@ -1190,6 +1191,7 @@ static Bool AMDGPUPreInitAccel_KMS(ScrnInfoPtr pScrn)
>                                    "ShadowFB\n");
>                 }
>         } else {
> +shadowfb:
>                 xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
>                            "GPU acceleration disabled, using ShadowFB\n");
>         }
> --
> 2.16.1
>
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> amd-gfx at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx


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