Re: [Intel-gfx] [PATCH] drm/i915: Wait for scanout to stop when sanitizing planes

2021-02-17 Thread Chris Wilson
Quoting Ville Syrjala (2021-02-17 16:20:50) > From: Ville Syrjälä > > When we sanitize planes let's wait for the scanout to stop > before we let the subsequent code tear down the ggtt mappings > and whatnot. Cures an underrun on my ivb when I boot with > VT-d enabled and the BIOS fb gets thrown o

[Intel-gfx] [PATCH] drm/i915: Wait for scanout to stop when sanitizing planes

2021-02-17 Thread Ville Syrjala
From: Ville Syrjälä When we sanitize planes let's wait for the scanout to stop before we let the subsequent code tear down the ggtt mappings and whatnot. Cures an underrun on my ivb when I boot with VT-d enabled and the BIOS fb gets thrown out due to stolen being considered unusable with VT-d act