[Intel-gfx] [PATCH] drm/i915: Increase max texture to 16k for gen9+

[Chris Wilson]

Quoting Alex Tu (2017-12-07 09:26:00)
> Rrefer to another patch [1] on mesa to extend width/height to 16384.
> For issue :
>  - https://bugs.freedesktop.org/show_bug.cgi?id=102508
>  - LP: #1714178 Triple monitor display failed with Dell Dock (HiDPI)
> 
> [1] https://patchwork.freedesktop.org/patch/124918/
> 
> Signed-off-by: Alex Tu <alex.tu at canonical.com>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 47a2f6acee50..556fa57b18b8 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -13905,7 +13905,7 @@ u32 intel_fb_pitch_limit(struct drm_i915_private *dev_priv,
>                 /* "The stride in bytes must not exceed the of the size of 8K
>                  *  pixels and 32K bytes."
>                  */
> -               return min(8192 * cpp, 32768);
> +               return min(16384 * cpp, 65536);
>         } else if (gen >= 5 && !HAS_GMCH_DISPLAY(dev_priv)) {
>                 return 32*1024;
>         } else if (gen >= 4) {
> @@ -14604,8 +14604,8 @@ int intel_modeset_init(struct drm_device *dev)
>                 dev->mode_config.max_width = 4096;
>                 dev->mode_config.max_height = 4096;
>         } else {
> -               dev->mode_config.max_width = 8192;
> -               dev->mode_config.max_height = 8192;
> +               dev->mode_config.max_width = 16384;
> +               dev->mode_config.max_height = 16384;

These are nothing to do with texture size, but single CRTC bounds.
-Chris