Re: [PATCH 2/2] drm/msm: Periodically update RPTR shadow

2021-05-02 Thread Jordan Crouse
On Wed, Apr 28, 2021 at 12:36:49PM -0700, Rob Clark wrote: > From: Rob Clark > > On a5xx and a6xx devices that are using CP_WHERE_AM_I to update a > ringbuffer read-ptr shadow value, periodically emit a CP_WHERE_AM_I > every 32 commands, so that a later submit waiting for ringbuffer > space to be

[PATCH 2/2] drm/msm: Periodically update RPTR shadow

2021-04-28 Thread Rob Clark
From: Rob Clark On a5xx and a6xx devices that are using CP_WHERE_AM_I to update a ringbuffer read-ptr shadow value, periodically emit a CP_WHERE_AM_I every 32 commands, so that a later submit waiting for ringbuffer space to become available sees partial progress, rather than not seeing rptr advan