diff options
| author | Tomer Tayar <ttayar@habana.ai> | 2023-11-06 19:41:35 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2023-12-19 12:09:43 +0300 |
| commit | ae303d885d4a0fcea65330de9327d28edfebd206 (patch) | |
| tree | 564cfc67a3e9b256e2dcd7c405b39d15212b617c /drivers/accel/habanalabs | |
| parent | 4b0b1fbc7757169b6d304545a321c7a88f13f8f0 (diff) | |
| download | linux-ae303d885d4a0fcea65330de9327d28edfebd206.tar.xz | |
accel/habanalabs/gaudi2: get the correct QM CQ info upon an error
Upon a QM error, the address/size from both the CQ and the ARC_CQ are
printed, although the instruction that led to the error was received
from only one of them.
Moreover, in case of a QM undefined opcode, only one of these
address/size sets will be captured based on the value of ARC_CQ_PTR.
However, this value can be non-zero even if currently the CQ is used, in
case the CQ/ARC_CQ are alternately used.
Under the assumption of having a stop-on-error configuration, modify to
use CP_STS.CUR_CQ field to get the relevant CQ for the QM error.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/accel/habanalabs')
| -rw-r--r-- | drivers/accel/habanalabs/gaudi2/gaudi2.c | 44 | ||||
| -rw-r--r-- | drivers/accel/habanalabs/include/gaudi2/asic_reg/gaudi2_regs.h | 1 |
2 files changed, 23 insertions, 22 deletions
diff --git a/drivers/accel/habanalabs/gaudi2/gaudi2.c b/drivers/accel/habanalabs/gaudi2/gaudi2.c index 5075f92d15cc..77c480725a84 100644 --- a/drivers/accel/habanalabs/gaudi2/gaudi2.c +++ b/drivers/accel/habanalabs/gaudi2/gaudi2.c @@ -7860,36 +7860,36 @@ static bool gaudi2_handle_ecc_event(struct hl_device *hdev, u16 event_type, static void handle_lower_qman_data_on_err(struct hl_device *hdev, u64 qman_base, u64 event_mask) { - u32 lo, hi, cq_ptr_size, arc_cq_ptr_size; - u64 cq_ptr, arc_cq_ptr, cp_current_inst; - - lo = RREG32(qman_base + QM_CQ_PTR_LO_4_OFFSET); - hi = RREG32(qman_base + QM_CQ_PTR_HI_4_OFFSET); - cq_ptr = ((u64) hi) << 32 | lo; - cq_ptr_size = RREG32(qman_base + QM_CQ_TSIZE_4_OFFSET); - - lo = RREG32(qman_base + QM_ARC_CQ_PTR_LO_OFFSET); - hi = RREG32(qman_base + QM_ARC_CQ_PTR_HI_OFFSET); - arc_cq_ptr = ((u64) hi) << 32 | lo; - arc_cq_ptr_size = RREG32(qman_base + QM_ARC_CQ_TSIZE_OFFSET); + u32 lo, hi, cq_ptr_size, cp_sts; + u64 cq_ptr, cp_current_inst; + bool is_arc_cq; + + cp_sts = RREG32(qman_base + QM_CP_STS_4_OFFSET); + is_arc_cq = FIELD_GET(PDMA0_QM_CP_STS_CUR_CQ_MASK, cp_sts); /* 0 - legacy CQ, 1 - ARC_CQ */ + + if (is_arc_cq) { + lo = RREG32(qman_base + QM_ARC_CQ_PTR_LO_OFFSET); + hi = RREG32(qman_base + QM_ARC_CQ_PTR_HI_OFFSET); + cq_ptr = ((u64) hi) << 32 | lo; + cq_ptr_size = RREG32(qman_base + QM_ARC_CQ_TSIZE_OFFSET); + } else { + lo = RREG32(qman_base + QM_CQ_PTR_LO_4_OFFSET); + hi = RREG32(qman_base + QM_CQ_PTR_HI_4_OFFSET); + cq_ptr = ((u64) hi) << 32 | lo; + cq_ptr_size = RREG32(qman_base + QM_CQ_TSIZE_4_OFFSET); + } lo = RREG32(qman_base + QM_CP_CURRENT_INST_LO_4_OFFSET); hi = RREG32(qman_base + QM_CP_CURRENT_INST_HI_4_OFFSET); cp_current_inst = ((u64) hi) << 32 | lo; dev_info(hdev->dev, - "LowerQM. CQ: {ptr %#llx, size %u}, ARC_CQ: {ptr %#llx, size %u}, CP: {instruction %#llx}\n", - cq_ptr, cq_ptr_size, arc_cq_ptr, arc_cq_ptr_size, cp_current_inst); + "LowerQM. %sCQ: {ptr %#llx, size %u}, CP: {instruction %#llx}\n", + is_arc_cq ? "ARC_" : "", cq_ptr, cq_ptr_size, cp_current_inst); if (event_mask & HL_NOTIFIER_EVENT_UNDEFINED_OPCODE) { - if (arc_cq_ptr) { - hdev->captured_err_info.undef_opcode.cq_addr = arc_cq_ptr; - hdev->captured_err_info.undef_opcode.cq_size = arc_cq_ptr_size; - } else { - hdev->captured_err_info.undef_opcode.cq_addr = cq_ptr; - hdev->captured_err_info.undef_opcode.cq_size = cq_ptr_size; - } - + hdev->captured_err_info.undef_opcode.cq_addr = cq_ptr; + hdev->captured_err_info.undef_opcode.cq_size = cq_ptr_size; hdev->captured_err_info.undef_opcode.stream_id = QMAN_STREAMS; } } diff --git a/drivers/accel/habanalabs/include/gaudi2/asic_reg/gaudi2_regs.h b/drivers/accel/habanalabs/include/gaudi2/asic_reg/gaudi2_regs.h index a08378d0802b..8018214a7b59 100644 --- a/drivers/accel/habanalabs/include/gaudi2/asic_reg/gaudi2_regs.h +++ b/drivers/accel/habanalabs/include/gaudi2/asic_reg/gaudi2_regs.h @@ -250,6 +250,7 @@ #define QM_ARC_CQ_PTR_HI_OFFSET (mmPDMA0_QM_ARC_CQ_PTR_HI - mmPDMA0_QM_BASE) #define QM_ARC_CQ_TSIZE_OFFSET (mmPDMA0_QM_ARC_CQ_TSIZE - mmPDMA0_QM_BASE) +#define QM_CP_STS_4_OFFSET (mmPDMA0_QM_CP_STS_4 - mmPDMA0_QM_BASE) #define QM_CP_CURRENT_INST_LO_4_OFFSET (mmPDMA0_QM_CP_CURRENT_INST_LO_4 - mmPDMA0_QM_BASE) #define QM_CP_CURRENT_INST_HI_4_OFFSET (mmPDMA0_QM_CP_CURRENT_INST_HI_4 - mmPDMA0_QM_BASE) |