[Freedreno] [v1] drm/msm/dpu: consider vertical front porch in the prefill bw calculation

2020-11-25 Thread Kalyan Thota
In case of panels with low vertical back porch, the prefill bw requirement will be high as we will have less time(vbp+pw) to fetch and fill the hw latency buffers before start of first line in active period. For ex: Say hw_latency_line_buffers = 24, and if blanking vbp+pw = 10 Here we need to fetc

Re: [Freedreno] [v1] drm/msm/dpu: consider vertical front porch in the prefill bw calculation

2020-11-25 Thread Amit Pundir
On Wed, 25 Nov 2020 at 15:33, Kalyan Thota wrote: > > In case of panels with low vertical back porch, the prefill bw > requirement will be high as we will have less time(vbp+pw) to > fetch and fill the hw latency buffers before start of first line > in active period. > > For ex: > Say hw_latency_l

Re: [Freedreno] [PATCHv10 0/9] System Cache support for GPU and required SMMU support

2020-11-25 Thread Will Deacon
On Wed, 25 Nov 2020 12:30:09 +0530, Sai Prakash Ranjan wrote: > Some hardware variants contain a system cache or the last level > cache(llc). This cache is typically a large block which is shared > by multiple clients on the SOC. GPU uses the system cache to cache > both the GPU data buffers(like t

Re: [Freedreno] [PATCHv10 0/9] System Cache support for GPU and required SMMU support

2020-11-25 Thread Will Deacon
On Wed, 25 Nov 2020 12:30:09 +0530, Sai Prakash Ranjan wrote: > Some hardware variants contain a system cache or the last level > cache(llc). This cache is typically a large block which is shared > by multiple clients on the SOC. GPU uses the system cache to cache > both the GPU data buffers(like t