Reviewed-by: Xiangliang Yu <Xiangliang.Yu@xxxxxxx>
-----Original Message-----
From: Lou, Wentao <Wentao.Lou@xxxxxxx>
Sent: Tuesday, December 18, 2018 3:52 PM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Lou, Wentao <Wentao.Lou@xxxxxxx>
Subject: [PATCH] drm/amdgpu: psp_ring_destroy cause psp->km_ring.ring_mem NULL
psp_ring_destroy inside psp_load_fw cause psp->km_ring.ring_mem NULL.
Call Trace occurred when psp_cmd_submit.
should be psp_ring_stop instead.
Change-Id: Ib332004b3b9edc9e002adc532b2d45cdad929b05
Signed-off-by: Wentao Lou <Wentao.Lou@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 7f5ce37..8189a90 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -547,7 +547,7 @@ static int psp_load_fw(struct amdgpu_device *adev)
struct psp_context *psp = &adev->psp;
if (amdgpu_sriov_vf(adev) && adev->in_gpu_reset) {
- psp_ring_destroy(psp, PSP_RING_TYPE__KM);
+ psp_ring_stop(psp, PSP_RING_TYPE__KM); /* should not destroy ring, only stop */
goto skip_memalloc;
}
--
2.7.4
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