Re: [Intel-gfx] [PATCH v2 1/9] drm/i915/dgfx: OpRegion VRAM Self Refresh Support

2022-06-17 Thread Gupta, Anshuman
> -Original Message- > From: Nikula, Jani > Sent: Thursday, June 16, 2022 6:26 PM > To: Gupta, Anshuman ; intel- > g...@lists.freedesktop.org; dri-de...@lists.freedesktop.org > Cc: Roper, Matthew D ; Nilawar, Badal > ; Ewins, Jon ; Vivi, Rodrigo > ; Ursulin, Tvrtko ; Tangudu, > Tilak ;

Re: [Intel-gfx] [PATCH v2 1/9] drm/i915/dgfx: OpRegion VRAM Self Refresh Support

2022-06-16 Thread Jani Nikula
On Thu, 16 Jun 2022, Anshuman Gupta wrote: > Intel DGFX cards provides a feature Video Ram Self Refrsh(VRSR). > DGFX VRSR can be enabled with runtime suspend D3Cold flow and with > opportunistic S0ix system wide suspend flow as well. > > Without VRSR enablement i915 has to evict the lmem objects t

[Intel-gfx] [PATCH v2 1/9] drm/i915/dgfx: OpRegion VRAM Self Refresh Support

2022-06-16 Thread Anshuman Gupta
Intel DGFX cards provides a feature Video Ram Self Refrsh(VRSR). DGFX VRSR can be enabled with runtime suspend D3Cold flow and with opportunistic S0ix system wide suspend flow as well. Without VRSR enablement i915 has to evict the lmem objects to system memory. Depending on some heuristics driver