Re: [Intel-gfx] [PATCH v2] drm/i915/display: Support PSR entry VSC packet to be transmitted one frame earlier

2023-11-01 Thread Kahola, Mika
> -Original Message- > From: Hogander, Jouni > Sent: Wednesday, November 1, 2023 11:29 AM > To: Kahola, Mika ; intel-gfx@lists.freedesktop.org > Cc: ville.syrj...@linux.intel.com > Subject: Re: [PATCH v2] drm/i915/display: Support PSR entry VSC packet to be > transmitted one frame

Re: [Intel-gfx] [PATCH v2] drm/i915/display: Support PSR entry VSC packet to be transmitted one frame earlier

2023-11-01 Thread Kahola, Mika
> -Original Message- > From: Ville Syrjälä > Sent: Wednesday, November 1, 2023 11:38 AM > To: Hogander, Jouni > Cc: Kahola, Mika ; intel-gfx@lists.freedesktop.org > Subject: Re: [PATCH v2] drm/i915/display: Support PSR entry VSC packet to be > transmitted one frame earlier > > On Wed,

Re: [Intel-gfx] [PATCH v2] drm/i915/display: Support PSR entry VSC packet to be transmitted one frame earlier

2023-11-01 Thread Ville Syrjälä
On Wed, Nov 01, 2023 at 09:28:51AM +, Hogander, Jouni wrote: > On Wed, 2023-11-01 at 10:57 +0200, Mika Kahola wrote: > > Display driver shall read DPCD 00071h[3:1] during configuration > > to get PSR setup time. This register provides the setup time > > requirement on the VSC SDP entry packet.

Re: [Intel-gfx] [PATCH v2] drm/i915/display: Support PSR entry VSC packet to be transmitted one frame earlier

2023-11-01 Thread Hogander, Jouni
On Wed, 2023-11-01 at 10:57 +0200, Mika Kahola wrote: > Display driver shall read DPCD 00071h[3:1] during configuration > to get PSR setup time. This register provides the setup time > requirement on the VSC SDP entry packet. If setup time cannot be > met with the current timings > (e.g., PSR

[Intel-gfx] [PATCH v2] drm/i915/display: Support PSR entry VSC packet to be transmitted one frame earlier

2023-11-01 Thread Mika Kahola
Display driver shall read DPCD 00071h[3:1] during configuration to get PSR setup time. This register provides the setup time requirement on the VSC SDP entry packet. If setup time cannot be met with the current timings (e.g., PSR setup time + other blanking requirements > blanking time), driver