[AMD Official Use Only - General]
Acked-by: Alex Deucher
From: amd-gfx on behalf of
jiadong@amd.com
Sent: Wednesday, May 24, 2023 12:35 AM
To: amd-gfx@lists.freedesktop.org
Cc: Zhu, Jiadong
Subject: [PATCH] drm/amdgpu: Reset CP_VMID_PREEMPT after
From: Jiadong Zhu
When MEC executes unmap_queue for mid command buffer preemption, it will
kick the write pointer of the gfx ring, set CP_VMID_PREEMPT to trigger the
preemption and wait for CP_VMID_PREEMPT becomes zero after the preemption
done. There is a race condition that PFP may excute the r
