ping
_____________________________________
Monk Liu|GPU Virtualization Team |AMD
-----Original Message-----
From: Monk Liu <Monk.Liu@xxxxxxx>
Sent: Tuesday, November 26, 2019 7:50 PM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Liu, Monk <Monk.Liu@xxxxxxx>
Subject: [PATCH 4/5] drm/amdgpu: use CPU to flush vmhub if sched stopped
otherwse the flush_gpu_tlb will hang if we unload the KMD becuase the schedulers already stopped
Signed-off-by: Monk Liu <Monk.Liu@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
index 321f8a9..4bb4d27 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
@@ -326,7 +326,8 @@ static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
if (!adev->mman.buffer_funcs_enabled ||
!adev->ib_pool_ready ||
- adev->in_gpu_reset) {
+ adev->in_gpu_reset ||
+ ring->sched.ready == false) {
gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_GFXHUB_0, 0);
mutex_unlock(&adev->mman.gtt_window_lock);
return;
--
2.7.4
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