From f75e94d86829e92a758a26fc5bbdb4c9eba86260 Mon Sep 17 00:00:00 2001 From: Guchun Chen Date: Tue, 4 Aug 2020 15:00:53 +0800 Subject: [PATCH] drm/amdgpu: bypass querying ras error count registers Once ras recovery is issued by ras sync flood interrupt or ras controller interrupt, add this guard to bypass or execute ras error count register harvest of all IPs. Signed-off-by: Guchun Chen Reviewed-by: Hawking Zhang Reviewed-by: Dennis Li Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 22 ++++++++------- drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h | 3 +++ drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c | 48 ++++++++++++++++++--------------- 3 files changed, 41 insertions(+), 32 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c index 1a55f6f..fbe464c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c @@ -1547,17 +1547,19 @@ static void amdgpu_ras_do_recovery(struct work_struct *work) struct list_head device_list, *device_list_handle = NULL; struct amdgpu_hive_info *hive = amdgpu_get_xgmi_hive(adev, false); - /* Build list of devices to query RAS related errors */ - if (hive && adev->gmc.xgmi.num_physical_nodes > 1) - device_list_handle = &hive->device_list; - else { - INIT_LIST_HEAD(&device_list); - list_add_tail(&adev->gmc.xgmi.head, &device_list); - device_list_handle = &device_list; - } + if (!ras->disable_ras_err_cnt_harvest) { + /* Build list of devices to query RAS related errors */ + if (hive && adev->gmc.xgmi.num_physical_nodes > 1) { + device_list_handle = &hive->device_list; + } else { + INIT_LIST_HEAD(&device_list); + list_add_tail(&adev->gmc.xgmi.head, &device_list); + device_list_handle = &device_list; + } - list_for_each_entry(remote_adev, device_list_handle, gmc.xgmi.head) { - amdgpu_ras_log_on_err_counter(remote_adev); + list_for_each_entry(remote_adev, + device_list_handle, gmc.xgmi.head) + amdgpu_ras_log_on_err_counter(remote_adev); } if (amdgpu_device_should_recover_gpu(ras->adev)) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h index 70a6fca..6b8d7bb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h @@ -343,6 +343,9 @@ struct amdgpu_ras { /* bad page count threshold */ uint32_t bad_page_cnt_threshold; + + /* disable ras error count harvest in recovery */ + bool disable_ras_err_cnt_harvest; }; struct ras_fs_data { diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c index e629156..eadc952 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c @@ -302,6 +302,7 @@ static void nbio_v7_4_handle_ras_controller_intr_no_bifring(struct amdgpu_device uint32_t bif_doorbell_intr_cntl; struct ras_manager *obj = amdgpu_ras_find_obj(adev, adev->nbio.ras_if); struct ras_err_data err_data = {0, 0, 0, NULL}; + struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); bif_doorbell_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL); if (REG_GET_FIELD(bif_doorbell_intr_cntl, @@ -312,28 +313,31 @@ static void nbio_v7_4_handle_ras_controller_intr_no_bifring(struct amdgpu_device RAS_CNTLR_INTERRUPT_CLEAR, 1); WREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL, bif_doorbell_intr_cntl); - /* - * clear error status after ras_controller_intr according to - * hw team and count ue number for query - */ - nbio_v7_4_query_ras_error_count(adev, &err_data); - - /* logging on error counter and printing for awareness */ - obj->err_data.ue_count += err_data.ue_count; - obj->err_data.ce_count += err_data.ce_count; - - if (err_data.ce_count) - dev_info(adev->dev, "%ld correctable hardware " - "errors detected in %s block, " - "no user action is needed.\n", - obj->err_data.ce_count, - adev->nbio.ras_if->name); - - if (err_data.ue_count) - dev_info(adev->dev, "%ld uncorrectable hardware " - "errors detected in %s block\n", - obj->err_data.ue_count, - adev->nbio.ras_if->name); + if (!ras->disable_ras_err_cnt_harvest) { + /* + * clear error status after ras_controller_intr + * according to hw team and count ue number + * for query + */ + nbio_v7_4_query_ras_error_count(adev, &err_data); + + /* logging on error cnt and printing for awareness */ + obj->err_data.ue_count += err_data.ue_count; + obj->err_data.ce_count += err_data.ce_count; + + if (err_data.ce_count) + dev_info(adev->dev, "%ld correctable hardware " + "errors detected in %s block, " + "no user action is needed.\n", + obj->err_data.ce_count, + adev->nbio.ras_if->name); + + if (err_data.ue_count) + dev_info(adev->dev, "%ld uncorrectable hardware " + "errors detected in %s block\n", + obj->err_data.ue_count, + adev->nbio.ras_if->name); + } dev_info(adev->dev, "RAS controller interrupt triggered " "by NBIF error\n"); -- 2.7.4