Re: [Intel-gfx] [PATCH v4 RESEND] drm/i915/gem: Don't try to map and fence large scanout buffers (v4)

2022-01-28 Thread Tvrtko Ursulin
Hi, On 19/01/2022 23:12, Vivek Kasireddy wrote: On platforms capable of allowing 8K (7680 x 4320) modes, pinning 2 or more framebuffers/scanout buffers results in only one that is mappable/ fenceable. Therefore, pageflipping between these 2 FBs where only one is mappable/fenceable creates

[Intel-gfx] [PATCH v4 RESEND] drm/i915/gem: Don't try to map and fence large scanout buffers (v4)

2022-01-19 Thread Vivek Kasireddy
On platforms capable of allowing 8K (7680 x 4320) modes, pinning 2 or more framebuffers/scanout buffers results in only one that is mappable/ fenceable. Therefore, pageflipping between these 2 FBs where only one is mappable/fenceable creates latencies large enough to miss alternate vblanks thereby