Re: [Intel-gfx] [PATCH v2 24/27] drm/i915/lnl: Introduce MDCLK_CDCLK ratio to DBuf

2023-09-11 Thread Lisovskiy, Stanislav
On Fri, Sep 08, 2023 at 03:43:03PM -0700, Matt Roper wrote: > On Thu, Sep 07, 2023 at 08:37:54AM -0700, Lucas De Marchi wrote: > > From: Stanislav Lisovskiy > > > > When we change MDCLK/CDCLK the BSpec now instructs us to write a ratio > > between MDCLK/CDCLK to MBUS CTL and DBUF CTL registers du

Re: [Intel-gfx] [PATCH v2 24/27] drm/i915/lnl: Introduce MDCLK_CDCLK ratio to DBuf

2023-09-08 Thread Matt Roper
On Thu, Sep 07, 2023 at 08:37:54AM -0700, Lucas De Marchi wrote: > From: Stanislav Lisovskiy > > When we change MDCLK/CDCLK the BSpec now instructs us to write a ratio > between MDCLK/CDCLK to MBUS CTL and DBUF CTL registers during that > change. > > Previsouly DBuf state and CDCLK were not anyh

[Intel-gfx] [PATCH v2 24/27] drm/i915/lnl: Introduce MDCLK_CDCLK ratio to DBuf

2023-09-07 Thread Lucas De Marchi
From: Stanislav Lisovskiy When we change MDCLK/CDCLK the BSpec now instructs us to write a ratio between MDCLK/CDCLK to MBUS CTL and DBUF CTL registers during that change. Previsouly DBuf state and CDCLK were not anyhow coupled together. Now at compute stage when we know which CDCLK/MDCLK we ar