[PATCH 2/3] drm/amdgpu: stop freeing PSP buffers during suspend
Christian König
ckoenig.leichtzumerken at gmail.com
Wed Nov 16 16:01:10 UTC 2022
That the PSP code tries to free the memory during suspend is quite
broken and leads to problems during resume.
Signed-off-by: Christian König <christian.koenig at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 30 ++++++++++---------------
1 file changed, 12 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 0a8c30475dda..470cd660c450 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -511,11 +511,10 @@ static int psp_sw_fini(void *handle)
kfree(cmd);
cmd = NULL;
- if (psp->km_ring.ring_mem)
- amdgpu_bo_free_kernel(&adev->firmware.rbuf,
- &psp->km_ring.ring_mem_mc_addr,
- (void **)&psp->km_ring.ring_mem);
-
+ psp_free_shared_bufs(psp);
+ amdgpu_bo_free_kernel(&adev->firmware.rbuf,
+ &psp->km_ring.ring_mem_mc_addr,
+ (void **)&psp->km_ring.ring_mem);
amdgpu_bo_free_kernel(&psp->fw_pri_bo,
&psp->fw_pri_mc_addr, &psp->fw_pri_buf);
amdgpu_bo_free_kernel(&psp->fence_buf_bo,
@@ -2635,8 +2634,6 @@ static int psp_hw_fini(void *handle)
psp_ring_destroy(psp, PSP_RING_TYPE__KM);
- psp_free_shared_bufs(psp);
-
return 0;
}
@@ -2651,7 +2648,7 @@ static int psp_suspend(void *handle)
ret = psp_xgmi_terminate(psp);
if (ret) {
DRM_ERROR("Failed to terminate xgmi ta\n");
- goto out;
+ return ret;
}
}
@@ -2659,40 +2656,40 @@ static int psp_suspend(void *handle)
ret = psp_ras_terminate(psp);
if (ret) {
DRM_ERROR("Failed to terminate ras ta\n");
- goto out;
+ return ret;
}
ret = psp_hdcp_terminate(psp);
if (ret) {
DRM_ERROR("Failed to terminate hdcp ta\n");
- goto out;
+ return ret;
}
ret = psp_dtm_terminate(psp);
if (ret) {
DRM_ERROR("Failed to terminate dtm ta\n");
- goto out;
+ return ret;
}
ret = psp_rap_terminate(psp);
if (ret) {
DRM_ERROR("Failed to terminate rap ta\n");
- goto out;
+ return ret;
}
ret = psp_securedisplay_terminate(psp);
if (ret) {
DRM_ERROR("Failed to terminate securedisplay ta\n");
- goto out;
+ return ret;
}
}
ret = psp_asd_terminate(psp);
if (ret) {
DRM_ERROR("Failed to terminate asd\n");
- goto out;
+ return ret;
}
ret = psp_tmr_terminate(psp);
if (ret) {
DRM_ERROR("Failed to terminate tmr\n");
- goto out;
+ return ret;
}
ret = psp_ring_stop(psp, PSP_RING_TYPE__KM);
@@ -2700,9 +2697,6 @@ static int psp_suspend(void *handle)
DRM_ERROR("PSP ring stop failed\n");
}
-out:
- psp_free_shared_bufs(psp);
-
return ret;
}
--
2.34.1
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