drm/amdgpu: fix ttm_bo calltrace warning in psp_hw_fini

The call trace occurs when the amdgpu is removed after
the mode1 reset. During mode1 reset, from suspend to resume,
there is no need to reinitialize the ta firmware buffer
which caused the bo pin_count increase redundantly.

[  489.885525] Call Trace:
[  489.885525]  <TASK>
[  489.885526]  amdttm_bo_put+0x34/0x50 [amdttm]
[  489.885529]  amdgpu_bo_free_kernel+0xe8/0x130 [amdgpu]
[  489.885620]  psp_free_shared_bufs+0xb7/0x150 [amdgpu]
[  489.885720]  psp_hw_fini+0xce/0x170 [amdgpu]
[  489.885815]  amdgpu_device_fini_hw+0x2ff/0x413 [amdgpu]
[  489.885960]  ? blocking_notifier_chain_unregister+0x56/0xb0
[  489.885962]  amdgpu_driver_unload_kms+0x51/0x60 [amdgpu]
[  489.886049]  amdgpu_pci_remove+0x5a/0x140 [amdgpu]
[  489.886132]  ? __pm_runtime_resume+0x60/0x90
[  489.886134]  pci_device_remove+0x3e/0xb0
[  489.886135]  __device_release_driver+0x1ab/0x2a0
[  489.886137]  driver_detach+0xf3/0x140
[  489.886138]  bus_remove_driver+0x6c/0xf0
[  489.886140]  driver_unregister+0x31/0x60
[  489.886141]  pci_unregister_driver+0x40/0x90
[  489.886142]  amdgpu_exit+0x15/0x451 [amdgpu]

Signed-off-by: Horatio Zhang <Hongkun.Zhang@amd.com>
Signed-off-by: longlyao <Longlong.Yao@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 15e601f..28fe6d9 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -1683,7 +1683,7 @@ static int psp_hdcp_initialize(struct psp_context *psp)
        psp->hdcp_context.context.mem_context.shared_mem_size = PSP_HDCP_SHARED_MEM_SIZE;
        psp->hdcp_context.context.ta_load_type = GFX_CMD_ID_LOAD_TA;
 
-       if (!psp->hdcp_context.context.initialized) {
+       if (!psp->hdcp_context.context.mem_context.shared_buf) {
                ret = psp_ta_init_shared_buf(psp, &psp->hdcp_context.context.mem_context);
                if (ret)
                        return ret;
@@ -1750,7 +1750,7 @@ static int psp_dtm_initialize(struct psp_context *psp)
        psp->dtm_context.context.mem_context.shared_mem_size = PSP_DTM_SHARED_MEM_SIZE;
        psp->dtm_context.context.ta_load_type = GFX_CMD_ID_LOAD_TA;
 
-       if (!psp->dtm_context.context.initialized) {
+       if (!psp->dtm_context.context.mem_context.shared_buf) {
                ret = psp_ta_init_shared_buf(psp, &psp->dtm_context.context.mem_context);
                if (ret)
                        return ret;
@@ -1818,7 +1818,7 @@ static int psp_rap_initialize(struct psp_context *psp)
        psp->rap_context.context.mem_context.shared_mem_size = PSP_RAP_SHARED_MEM_SIZE;
        psp->rap_context.context.ta_load_type = GFX_CMD_ID_LOAD_TA;
 
-       if (!psp->rap_context.context.initialized) {
+       if (!psp->rap_context.context.mem_context.shared_buf) {
                ret = psp_ta_init_shared_buf(psp, &psp->rap_context.context.mem_context);
                if (ret)
                        return ret;