[Nouveau] [PATCH] display: allow up to 16k width/height for fermi+

[Ben Skeggs]

On 18 September 2015 at 12:31, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
> ---
>
> mrnuke on IRC reported that 3x 4K monitors (11520 width total) got
> rejected for some reason. I'm guessing it's this since a single giant
> FB has to be used.
>
> Not sure if the hardware will actually support it, but... who knows.
After looking at the EVO headers, I believe this should be fine.  Did
the patch get tested to confirm?

I'd also make the subject "kms" rather than "display".

Ben.

>
>  drm/nouveau/nouveau_display.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drm/nouveau/nouveau_display.c b/drm/nouveau/nouveau_display.c
> index 8d0e60d..d3d6438 100644
> --- a/drm/nouveau/nouveau_display.c
> +++ b/drm/nouveau/nouveau_display.c
> @@ -469,9 +469,13 @@ nouveau_display_create(struct drm_device *dev)
>         if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
>                 dev->mode_config.max_width = 4096;
>                 dev->mode_config.max_height = 4096;
> -       } else {
> +       } else
> +       if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) {
>                 dev->mode_config.max_width = 8192;
>                 dev->mode_config.max_height = 8192;
> +       } else {
> +               dev->mode_config.max_width = 16384;
> +               dev->mode_config.max_height = 16384;
>         }
>
>         dev->mode_config.preferred_depth = 24;
> --
> 2.4.6
>
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