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drm/amdgpu: Set dpc status appropriately

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Set the dpc status based on hardware state. Also, clear the status before
reinitialization after a successful reset.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Ce Sun <cesun102@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar
2025-07-24 12:58:10 +05:30
committed by Alex Deucher
parent 0333052d90
commit 91c4fd4164
1 changed files with 16 additions and 8 deletions
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24
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@@ -5828,6 +5828,7 @@ int amdgpu_device_reinit_after_reset(struct amdgpu_reset_context *reset_context)
amdgpu_set_init_level(tmp_adev, init_level);
if (full_reset) {
/* post card */
amdgpu_reset_set_dpc_status(tmp_adev, false);
amdgpu_ras_clear_err_state(tmp_adev);
r = amdgpu_device_asic_init(tmp_adev);
if (r) {
@@ -6883,11 +6884,6 @@ pci_ers_result_t amdgpu_pci_error_detected(struct pci_dev *pdev, pci_channel_sta
dev_info(adev->dev, "PCI error: detected callback!!\n");
if (!amdgpu_dpm_is_link_reset_supported(adev)) {
dev_warn(adev->dev, "No support for XGMI hive yet...\n");
return PCI_ERS_RESULT_DISCONNECT;
}
adev->pci_channel_state = state;
switch (state) {
@@ -6897,10 +6893,23 @@ pci_ers_result_t amdgpu_pci_error_detected(struct pci_dev *pdev, pci_channel_sta
case pci_channel_io_frozen:
/* Fatal error, prepare for slot reset */
dev_info(adev->dev, "pci_channel_io_frozen: state(%d)!!\n", state);
if (hive) {
/* Hive devices should be able to support FW based
* link reset on other devices, if not return.
*/
if (!amdgpu_dpm_is_link_reset_supported(adev)) {
dev_warn(adev->dev,
"No support for XGMI hive yet...\n");
return PCI_ERS_RESULT_DISCONNECT;
}
/* Set dpc status only if device is part of hive
* Non-hive devices should be able to recover after
* link reset.
*/
amdgpu_reset_set_dpc_status(adev, true);
if (hive)
mutex_lock(&hive->hive_lock);
amdgpu_reset_set_dpc_status(adev, true);
}
memset(&reset_context, 0, sizeof(reset_context));
INIT_LIST_HEAD(&device_list);
@@ -7063,7 +7072,6 @@ void amdgpu_pci_resume(struct pci_dev *pdev)
amdgpu_device_sched_resume(&device_list, NULL, NULL);
amdgpu_device_gpu_resume(adev, &device_list, false);
amdgpu_device_recovery_put_reset_lock(adev, &device_list);
amdgpu_reset_set_dpc_status(adev, false);
if (hive) {
mutex_unlock(&hive->hive_lock);