Re: [PATCH 0/4] Mediatek DRM driver detect CMDQ execution timeout by vblank IRQ

2020-10-02 Thread Chun-Kuang Hu
Hi, Jassi: Jassi Brar 於 2020年10月3日 週六 上午4:30寫道： > > On Sun, Sep 27, 2020 at 6:04 PM Chun-Kuang Hu wrote: > > > > CMDQ helper provide timer to detect execution timeout, but DRM driver > > could have a better way to detect execution timeout by vblank IRQ. > > For DRM, CMDQ command should execute

Re: [PATCH 0/4] Mediatek DRM driver detect CMDQ execution timeout by vblank IRQ

2020-10-02 Thread Jassi Brar
On Sun, Sep 27, 2020 at 6:04 PM Chun-Kuang Hu wrote: > > CMDQ helper provide timer to detect execution timeout, but DRM driver > could have a better way to detect execution timeout by vblank IRQ. > For DRM, CMDQ command should execute in vblank, so if it fail to > execute in next 2 vblank,

[PATCH 0/4] Mediatek DRM driver detect CMDQ execution timeout by vblank IRQ

2020-09-27 Thread Chun-Kuang Hu
CMDQ helper provide timer to detect execution timeout, but DRM driver could have a better way to detect execution timeout by vblank IRQ. For DRM, CMDQ command should execute in vblank, so if it fail to execute in next 2 vblank, timeout happen. Even though we could calculate time between 2 vblank