Re: [PATCH 1/2] drm/radeon: Avoid overflows/divide-by-zero in latency_watermark calculations.

On Sun, Apr 23, 2017 at 7:33 PM, Mario Kleiner wrote: > At dot clocks > approx. 250 Mhz, some of these calcs will overflow and > cause miscalculation of latency watermarks, and for some overflows also > divide-by-zero driver crash. Make calcs more overflow resistant. >

[PATCH 1/2] drm/radeon: Avoid overflows/divide-by-zero in latency_watermark calculations.

At dot clocks > approx. 250 Mhz, some of these calcs will overflow and cause miscalculation of latency watermarks, and for some overflows also divide-by-zero driver crash. Make calcs more overflow resistant. This is a direct port of the corresponding patch from amdgpu-kms, copy-paste for cik from