From 2d768a45454e14d1df8a97a7ca4fd12fa355c5ab Mon Sep 17 00:00:00 2001 From: Ofir Bitton Date: Tue, 28 Jun 2022 08:34:28 +0300 Subject: [PATCH] habanalabs/gaudi2: reset device upon critical ECC event Correctable ECC events are not fatal, but as they accumulate, the f/w can decide that a hard-rest is required. This indication is propagated to the host using the existing ECC event interface. Signed-off-by: Ofir Bitton Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/gaudi2/gaudi2.c | 25 +++++++++++-------- .../misc/habanalabs/include/common/cpucp_if.h | 2 +- 2 files changed, 16 insertions(+), 11 deletions(-) diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanalabs/gaudi2/gaudi2.c index 676ccda5bb628..982b86a182add 100644 --- a/drivers/misc/habanalabs/gaudi2/gaudi2.c +++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c @@ -6637,7 +6637,7 @@ static void gaudi2_print_irq_info(struct hl_device *hdev, u16 event_type) event_type, desc); } -static void gaudi2_handle_ecc_event(struct hl_device *hdev, u16 event_type, +static bool gaudi2_handle_ecc_event(struct hl_device *hdev, u16 event_type, struct hl_eq_ecc_data *ecc_data) { u64 ecc_address = 0, ecc_syndrom = 0; @@ -6647,8 +6647,11 @@ static void gaudi2_handle_ecc_event(struct hl_device *hdev, u16 event_type, ecc_syndrom = le64_to_cpu(ecc_data->ecc_syndrom); memory_wrapper_idx = ecc_data->memory_wrapper_idx; - dev_err(hdev->dev, "ECC error detected. address: %#llx. Syndrom: %#llx. block id %u\n", - ecc_address, ecc_syndrom, memory_wrapper_idx); + dev_err(hdev->dev, + "ECC error detected. address: %#llx. Syndrom: %#llx. block id %u. critical %u.\n", + ecc_address, ecc_syndrom, memory_wrapper_idx, ecc_data->is_critical); + + return !!ecc_data->is_critical; } /* @@ -7991,9 +7994,9 @@ static bool gaudi2_handle_hbm_mc_sei_err(struct hl_device *hdev, u16 event_type, } dev_err_ratelimited(hdev->dev, - "System Error Interrupt - HBM(%u) MC(%u) MC_CH(%u) MC_PC(%u). Error cause: %s\n", - hbm_id, mc_id, sei_data->hdr.mc_channel, sei_data->hdr.mc_pseudo_channel, - hbm_mc_sei_cause[cause_idx]); + "System Error Interrupt - HBM(%u) MC(%u) MC_CH(%u) MC_PC(%u). Critical(%u). Error cause: %s\n", + hbm_id, mc_id, sei_data->hdr.mc_channel, sei_data->hdr.mc_pseudo_channel, + sei_data->hdr.is_critical, hbm_mc_sei_cause[cause_idx]); /* Print error-specific info */ switch (cause_idx) { @@ -8032,6 +8035,8 @@ static bool gaudi2_handle_hbm_mc_sei_err(struct hl_device *hdev, u16 event_type, break; } + require_hard_reset |= !!sei_data->hdr.is_critical; + return require_hard_reset; } @@ -8199,7 +8204,7 @@ static void gaudi2_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_ent { u32 ctl, reset_flags = HL_DRV_RESET_HARD | HL_DRV_RESET_DELAY; struct gaudi2_device *gaudi2 = hdev->asic_specific; - bool hbm_require_reset = false, skip_reset = false; + bool reset_required = false, skip_reset = false; int index, sbte_index; u16 event_type; @@ -8222,7 +8227,7 @@ static void gaudi2_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_ent fallthrough; case GAUDI2_EVENT_ROTATOR0_SERR ... GAUDI2_EVENT_ROTATOR1_DERR: reset_flags |= HL_DRV_RESET_FW_FATAL_ERR; - gaudi2_handle_ecc_event(hdev, event_type, &eq_entry->ecc_data); + reset_required = gaudi2_handle_ecc_event(hdev, event_type, &eq_entry->ecc_data); break; case GAUDI2_EVENT_TPC0_QM ... GAUDI2_EVENT_PDMA1_QM: @@ -8387,7 +8392,7 @@ static void gaudi2_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_ent case GAUDI2_EVENT_HBM0_MC0_SEI_SEVERE ... GAUDI2_EVENT_HBM5_MC1_SEI_NON_SEVERE: if (gaudi2_handle_hbm_mc_sei_err(hdev, event_type, &eq_entry->sei_data)) { reset_flags |= HL_DRV_RESET_FW_FATAL_ERR; - hbm_require_reset = true; + reset_required = true; } break; @@ -8539,7 +8544,7 @@ static void gaudi2_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_ent event_type); } - if ((gaudi2_irq_map_table[event_type].reset || hbm_require_reset) && !skip_reset) + if ((gaudi2_irq_map_table[event_type].reset || reset_required) && !skip_reset) goto reset_device; /* Send unmask irq only for interrupts not classified as MSG */ diff --git a/drivers/misc/habanalabs/include/common/cpucp_if.h b/drivers/misc/habanalabs/include/common/cpucp_if.h index 719b2ff80985a..abf40e1c4965a 100644 --- a/drivers/misc/habanalabs/include/common/cpucp_if.h +++ b/drivers/misc/habanalabs/include/common/cpucp_if.h @@ -192,7 +192,7 @@ struct hl_hbm_sei_header { __u8 sei_cause; /* enum hl_hbm_sei_cause */ __u8 mc_channel; /* range: 0-3 */ __u8 mc_pseudo_channel; /* range: 0-7 */ - __u8 pad[1]; + __u8 is_critical; }; #define HBM_RD_ADDR_SID_SHIFT 0 -- 2.39.5