Commit cb5fb665 authored by Dani Liberman's avatar Dani Liberman Committed by Oded Gabbay
Browse files

habanalabs/gaudi: add razwi notify event 



Each time razwi (read-only zero, write ignore) happens, besides
capturing its data, also notify the user about it.

Signed-off-by: default avatarDani Liberman <dliberman@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent 841cd2d7

drivers/misc/habanalabs/common/device.c

+8 −0
Original line number Diff line number Diff line
@@ -2409,6 +2409,14 @@ void hl_capture_razwi(struct hl_device *hdev, u64 addr, u16 *engine_id, u16 num_ 
			num_of_engines * sizeof(u16));

	hdev->captured_err_info.razwi.flags = flags;

}



void hl_handle_razwi(struct hl_device *hdev, u64 addr, u16 *engine_id, u16 num_of_engines,

			u8 flags, u64 *event_mask)

{

	hl_capture_razwi(hdev, addr, engine_id, num_of_engines, flags);

	*event_mask |= HL_NOTIFIER_EVENT_RAZWI;

}



static void hl_capture_user_mappings(struct hl_device *hdev, bool is_pmmu)

{

	struct page_fault_info *pgf_info = &hdev->captured_err_info.pgf_info;

drivers/misc/habanalabs/common/habanalabs.h

+2 −0
Original line number Diff line number Diff line
@@ -3812,6 +3812,8 @@ hl_mmap_mem_buf_alloc(struct hl_mem_mgr *mmg, 
__printf(2, 3) void hl_engine_data_sprintf(struct engines_data *e, const char *fmt, ...);

void hl_capture_razwi(struct hl_device *hdev, u64 addr, u16 *engine_id, u16 num_of_engines,

			u8 flags);

void hl_handle_razwi(struct hl_device *hdev, u64 addr, u16 *engine_id, u16 num_of_engines,

			u8 flags, u64 *event_mask);

void hl_capture_page_fault(struct hl_device *hdev, u64 addr, u16 eng_id, bool is_pmmu);



#ifdef CONFIG_DEBUG_FS

drivers/misc/habanalabs/gaudi/gaudi.c

+19 −18
Original line number Diff line number Diff line
@@ -7301,7 +7301,7 @@ static void gaudi_handle_qman_err(struct hl_device *hdev, u16 event_type, u64 *e 
}



static void gaudi_print_irq_info(struct hl_device *hdev, u16 event_type,

					bool razwi)

					bool razwi, u64 *event_mask)

{

	bool is_read = false, is_write = false;

	u16 engine_id[2], num_of_razwi_eng = 0;
@@ -7337,7 +7337,8 @@ static void gaudi_print_irq_info(struct hl_device *hdev, u16 event_type, 
				num_of_razwi_eng = 1;

		}



		hl_capture_razwi(hdev, razwi_addr, engine_id, num_of_razwi_eng, razwi_flags);

		hl_handle_razwi(hdev, razwi_addr, engine_id, num_of_razwi_eng, razwi_flags,

				event_mask);

	}

}
@@ -7675,7 +7676,7 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
	case GAUDI_EVENT_HBM_0_DERR ... GAUDI_EVENT_HBM_3_DERR:

	case GAUDI_EVENT_MMU_DERR:

	case GAUDI_EVENT_NIC0_CS_DBG_DERR ... GAUDI_EVENT_NIC4_CS_DBG_DERR:

		gaudi_print_irq_info(hdev, event_type, true);

		gaudi_print_irq_info(hdev, event_type, true, &event_mask);

		gaudi_handle_ecc_event(hdev, event_type, &eq_entry->ecc_data);

		event_mask |= HL_NOTIFIER_EVENT_GENERAL_HW_ERR;

		fw_fatal_err_flag = HL_DRV_RESET_FW_FATAL_ERR;
@@ -7685,7 +7686,7 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
	case GAUDI_EVENT_AXI_ECC:

	case GAUDI_EVENT_L2_RAM_ECC:

	case GAUDI_EVENT_PLL0 ... GAUDI_EVENT_PLL17:

		gaudi_print_irq_info(hdev, event_type, false);

		gaudi_print_irq_info(hdev, event_type, false, &event_mask);

		fw_fatal_err_flag = HL_DRV_RESET_FW_FATAL_ERR;

		event_mask |= HL_NOTIFIER_EVENT_GENERAL_HW_ERR;

		goto reset_device;
@@ -7694,7 +7695,7 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
	case GAUDI_EVENT_HBM1_SPI_0:

	case GAUDI_EVENT_HBM2_SPI_0:

	case GAUDI_EVENT_HBM3_SPI_0:

		gaudi_print_irq_info(hdev, event_type, false);

		gaudi_print_irq_info(hdev, event_type, false, &event_mask);

		gaudi_hbm_read_interrupts(hdev,

				gaudi_hbm_event_to_dev(event_type),

				&eq_entry->hbm_ecc_data);
@@ -7706,7 +7707,7 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
	case GAUDI_EVENT_HBM1_SPI_1:

	case GAUDI_EVENT_HBM2_SPI_1:

	case GAUDI_EVENT_HBM3_SPI_1:

		gaudi_print_irq_info(hdev, event_type, false);

		gaudi_print_irq_info(hdev, event_type, false, &event_mask);

		gaudi_hbm_read_interrupts(hdev,

				gaudi_hbm_event_to_dev(event_type),

				&eq_entry->hbm_ecc_data);
@@ -7728,7 +7729,7 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
		 * if the event is a TPC Assertion or a "real" TPC DEC.

		 */

		event_mask |= HL_NOTIFIER_EVENT_TPC_ASSERT;

		gaudi_print_irq_info(hdev, event_type, true);

		gaudi_print_irq_info(hdev, event_type, true, &event_mask);

		reset_required = gaudi_tpc_read_interrupts(hdev,

					tpc_dec_event_to_tpc_id(event_type),

					"AXI_SLV_DEC_Error");
@@ -7753,7 +7754,7 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
	case GAUDI_EVENT_TPC5_KRN_ERR:

	case GAUDI_EVENT_TPC6_KRN_ERR:

	case GAUDI_EVENT_TPC7_KRN_ERR:

		gaudi_print_irq_info(hdev, event_type, true);

		gaudi_print_irq_info(hdev, event_type, true, &event_mask);

		reset_required = gaudi_tpc_read_interrupts(hdev,

					tpc_krn_event_to_tpc_id(event_type),

					"KRN_ERR");
@@ -7792,7 +7793,7 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
	case GAUDI_EVENT_HBM_0_SERR ... GAUDI_EVENT_HBM_3_SERR:

		fallthrough;

	case GAUDI_EVENT_MMU_SERR:

		gaudi_print_irq_info(hdev, event_type, true);

		gaudi_print_irq_info(hdev, event_type, true, &event_mask);

		gaudi_handle_ecc_event(hdev, event_type, &eq_entry->ecc_data);

		hl_fw_unmask_irq(hdev, event_type);

		event_mask |= HL_NOTIFIER_EVENT_GENERAL_HW_ERR;
@@ -7802,14 +7803,14 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
	case GAUDI_EVENT_CPU_AXI_SPLITTER:

	case GAUDI_EVENT_PSOC_AXI_DEC:

	case GAUDI_EVENT_PSOC_PRSTN_FALL:

		gaudi_print_irq_info(hdev, event_type, true);

		gaudi_print_irq_info(hdev, event_type, true, &event_mask);

		hl_fw_unmask_irq(hdev, event_type);

		event_mask |= HL_NOTIFIER_EVENT_GENERAL_HW_ERR;

		break;



	case GAUDI_EVENT_MMU_PAGE_FAULT:

	case GAUDI_EVENT_MMU_WR_PERM:

		gaudi_print_irq_info(hdev, event_type, true);

		gaudi_print_irq_info(hdev, event_type, true, &event_mask);

		hl_fw_unmask_irq(hdev, event_type);

		event_mask |= HL_NOTIFIER_EVENT_USER_ENGINE_ERR;

		break;
@@ -7838,14 +7839,14 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
	case GAUDI_EVENT_NIC4_QM1:

	case GAUDI_EVENT_DMA0_CORE ... GAUDI_EVENT_DMA7_CORE:

	case GAUDI_EVENT_TPC0_QM ... GAUDI_EVENT_TPC7_QM:

		gaudi_print_irq_info(hdev, event_type, true);

		gaudi_print_irq_info(hdev, event_type, true, &event_mask);

		gaudi_handle_qman_err(hdev, event_type, &event_mask);

		hl_fw_unmask_irq(hdev, event_type);

		event_mask |= (HL_NOTIFIER_EVENT_USER_ENGINE_ERR | HL_NOTIFIER_EVENT_DEVICE_RESET);

		break;



	case GAUDI_EVENT_RAZWI_OR_ADC_SW:

		gaudi_print_irq_info(hdev, event_type, true);

		gaudi_print_irq_info(hdev, event_type, true, &event_mask);

		event_mask |= HL_NOTIFIER_EVENT_USER_ENGINE_ERR;

		goto reset_device;
@@ -7858,7 +7859,7 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
	case GAUDI_EVENT_TPC6_BMON_SPMU:

	case GAUDI_EVENT_TPC7_BMON_SPMU:

	case GAUDI_EVENT_DMA_BM_CH0 ... GAUDI_EVENT_DMA_BM_CH7:

		gaudi_print_irq_info(hdev, event_type, false);

		gaudi_print_irq_info(hdev, event_type, false, &event_mask);

		hl_fw_unmask_irq(hdev, event_type);

		event_mask |= HL_NOTIFIER_EVENT_USER_ENGINE_ERR;

		break;
@@ -7870,7 +7871,7 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
		break;



	case GAUDI_EVENT_DMA_IF_SEI_0 ... GAUDI_EVENT_DMA_IF_SEI_3:

		gaudi_print_irq_info(hdev, event_type, false);

		gaudi_print_irq_info(hdev, event_type, false, &event_mask);

		gaudi_print_sm_sei_info(hdev, event_type,

					&eq_entry->sm_sei_data);

		rc = hl_state_dump(hdev);
@@ -7899,18 +7900,18 @@ static void gaudi_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entr 
		break;



	case GAUDI_EVENT_DEV_RESET_REQ:

		gaudi_print_irq_info(hdev, event_type, false);

		gaudi_print_irq_info(hdev, event_type, false, &event_mask);

		event_mask |= HL_NOTIFIER_EVENT_GENERAL_HW_ERR;

		goto reset_device;



	case GAUDI_EVENT_PKT_QUEUE_OUT_SYNC:

		gaudi_print_irq_info(hdev, event_type, false);

		gaudi_print_irq_info(hdev, event_type, false, &event_mask);

		gaudi_print_out_of_sync_info(hdev, &eq_entry->pkt_sync_err);

		event_mask |= HL_NOTIFIER_EVENT_GENERAL_HW_ERR;

		goto reset_device;



	case GAUDI_EVENT_FW_ALIVE_S:

		gaudi_print_irq_info(hdev, event_type, false);

		gaudi_print_irq_info(hdev, event_type, false, &event_mask);

		gaudi_print_fw_alive_info(hdev, &eq_entry->fw_alive);

		event_mask |= HL_NOTIFIER_EVENT_GENERAL_HW_ERR;

		goto reset_device;

include/uapi/misc/habanalabs.h

+2 −0
Original line number Diff line number Diff line
@@ -721,6 +721,7 @@ enum hl_server_type { 
 * HL_NOTIFIER_EVENT_DEVICE_UNAVAILABLE	- Indicates device is unavailable

 * HL_NOTIFIER_EVENT_USER_ENGINE_ERR	- Indicates device engine in error state

 * HL_NOTIFIER_EVENT_GENERAL_HW_ERR     - Indicates device HW error

 * HL_NOTIFIER_EVENT_RAZWI              - Indicates razwi happened

 */

#define HL_NOTIFIER_EVENT_TPC_ASSERT		(1ULL << 0)

#define HL_NOTIFIER_EVENT_UNDEFINED_OPCODE	(1ULL << 1)
@@ -729,6 +730,7 @@ enum hl_server_type { 
#define HL_NOTIFIER_EVENT_DEVICE_UNAVAILABLE	(1ULL << 4)

#define HL_NOTIFIER_EVENT_USER_ENGINE_ERR	(1ULL << 5)

#define HL_NOTIFIER_EVENT_GENERAL_HW_ERR	(1ULL << 6)

#define HL_NOTIFIER_EVENT_RAZWI			(1ULL << 7)



/* Opcode for management ioctl

 *