Re: [Intel-gfx] [PATCH v2 8/9] drm/i915: Fix DBUF bandwidth vs. cdclk handling

2022-03-10 Thread Lisovskiy, Stanislav
On Thu, Mar 10, 2022 at 10:59:16AM +0200, Ville Syrjälä wrote: > On Thu, Mar 10, 2022 at 10:22:56AM +0200, Lisovskiy, Stanislav wrote: > > On Thu, Mar 03, 2022 at 09:12:06PM +0200, Ville Syrjala wrote: > > > From: Ville Syrjälä > > > > > > Make the dbuf bandwidth min cdclk calculations match the

Re: [Intel-gfx] [PATCH v2 8/9] drm/i915: Fix DBUF bandwidth vs. cdclk handling

2022-03-10 Thread Ville Syrjälä
On Thu, Mar 10, 2022 at 10:22:56AM +0200, Lisovskiy, Stanislav wrote: > On Thu, Mar 03, 2022 at 09:12:06PM +0200, Ville Syrjala wrote: > > From: Ville Syrjälä > > > > Make the dbuf bandwidth min cdclk calculations match the spec > > more closely. Supposedly the arbiter can only guarantee an equal

Re: [Intel-gfx] [PATCH v2 8/9] drm/i915: Fix DBUF bandwidth vs. cdclk handling

2022-03-10 Thread Lisovskiy, Stanislav
On Thu, Mar 03, 2022 at 09:12:06PM +0200, Ville Syrjala wrote: > From: Ville Syrjälä > > Make the dbuf bandwidth min cdclk calculations match the spec > more closely. Supposedly the arbiter can only guarantee an equal > share of the total bandwidth of the slice to each active plane > on that slic

[Intel-gfx] [PATCH v2 8/9] drm/i915: Fix DBUF bandwidth vs. cdclk handling

2022-03-03 Thread Ville Syrjala
From: Ville Syrjälä Make the dbuf bandwidth min cdclk calculations match the spec more closely. Supposedly the arbiter can only guarantee an equal share of the total bandwidth of the slice to each active plane on that slice. So we take the max bandwidth of any of the planes on each slice and mult