Re: [Intel-gfx] [PATCH v2 4/8] drm/i915: Reject excessive SAGV block time

2022-03-16 Thread Lisovskiy, Stanislav
On Wed, Mar 09, 2022 at 06:49:44PM +0200, Ville Syrjala wrote: > From: Ville Syrjälä > > If the mailbox returns an exceesively large SAGV block time let's just > reject it. This avoids having to worry about overflows when we add the > SAGV block time to the wm0 latency. > > We shall put the

[Intel-gfx] [PATCH v2 4/8] drm/i915: Reject excessive SAGV block time

2022-03-09 Thread Ville Syrjala
From: Ville Syrjälä If the mailbox returns an exceesively large SAGV block time let's just reject it. This avoids having to worry about overflows when we add the SAGV block time to the wm0 latency. We shall put the limit arbitrarily at U16_MAX. >65msec latency doesn't really make sense to me in