Re: [Intel-gfx] [PATCH v2 7/9] drm/i915/rpm: Enable D3Cold VRAM SR Support

2022-06-17 Thread Gupta, Anshuman
> -Original Message- > From: Jani Nikula > Sent: Thursday, June 16, 2022 8:02 PM > To: Gupta, Anshuman ; intel- > g...@lists.freedesktop.org; dri-de...@lists.freedesktop.org > Cc: Wilson, Chris P ; Vivi, Rodrigo > > Subject: Re: [Intel-gfx] [PATCH v2 7/9] drm

Re: [Intel-gfx] [PATCH v2 7/9] drm/i915/rpm: Enable D3Cold VRAM SR Support

2022-06-16 Thread Jani Nikula
On Thu, 16 Jun 2022, Anshuman Gupta wrote: > Intel Client DGFX card supports D3Cold with two option. > D3Cold-off zero watt, D3Cold-VRAM Self Refresh. > > i915 requires to evict the lmem objects to smem in order to > support D3Cold-Off, which increases i915 the suspend/resume > latency. Enabling V

[Intel-gfx] [PATCH v2 7/9] drm/i915/rpm: Enable D3Cold VRAM SR Support

2022-06-16 Thread Anshuman Gupta
Intel Client DGFX card supports D3Cold with two option. D3Cold-off zero watt, D3Cold-VRAM Self Refresh. i915 requires to evict the lmem objects to smem in order to support D3Cold-Off, which increases i915 the suspend/resume latency. Enabling VRAM Self Refresh feature optimize the latency with addi