diff options
Diffstat (limited to 'hw/npu2-opencapi.c')
| -rw-r--r-- | hw/npu2-opencapi.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/hw/npu2-opencapi.c b/hw/npu2-opencapi.c index 6ad561c..6d642cd 100644 --- a/hw/npu2-opencapi.c +++ b/hw/npu2-opencapi.c @@ -909,6 +909,66 @@ static void reset_odl(uint32_t gcid, struct npu2_dev *dev) xscom_write(gcid, config_xscom, reg); } +static void setup_perf_counters(struct npu2_dev *dev) +{ + uint64_t addr, reg, link; + + /* + * setup the DLL perf counters to check CRC errors detected by + * the NPU or the adapter. + * + * Counter 0: link 0/ODL0, CRC error detected by ODL + * Counter 1: link 0/ODL0, CRC error detected by DLx + * Counter 2: link 1/ODL1, CRC error detected by ODL + * Counter 3: link 1/ODL1, CRC error detected by DLx + */ + if ((dev->brick_index == 2) || (dev->brick_index == 5)) + link = 0; + else + link = 1; + + addr = OB_DLL_PERF_MONITOR_CONFIG(dev->brick_index); + xscom_read(dev->npu->chip_id, addr, ®); + if (link == 0) { + reg = SETFIELD(OB_DLL_PERF_MONITOR_CONFIG_ENABLE, reg, + OB_DLL_PERF_MONITOR_CONFIG_LINK0); + reg = SETFIELD(OB_DLL_PERF_MONITOR_CONFIG_ENABLE >> 2, reg, + OB_DLL_PERF_MONITOR_CONFIG_LINK0); + } else { + reg = SETFIELD(OB_DLL_PERF_MONITOR_CONFIG_ENABLE >> 4, reg, + OB_DLL_PERF_MONITOR_CONFIG_LINK1); + reg = SETFIELD(OB_DLL_PERF_MONITOR_CONFIG_ENABLE >> 6, reg, + OB_DLL_PERF_MONITOR_CONFIG_LINK1); + } + reg = SETFIELD(OB_DLL_PERF_MONITOR_CONFIG_SIZE, reg, + OB_DLL_PERF_MONITOR_CONFIG_SIZE16); + xscom_write(dev->npu->chip_id, + OB_DLL_PERF_MONITOR_CONFIG(dev->brick_index), reg); + OCAPIDBG(dev, "perf counter config %llx = %llx\n", addr, reg); + + addr = OB_DLL_PERF_MONITOR_SELECT(dev->brick_index); + xscom_read(dev->npu->chip_id, addr, ®); + reg = SETFIELD(OB_DLL_PERF_MONITOR_SELECT_COUNTER >> (link * 16), + reg, OB_DLL_PERF_MONITOR_SELECT_CRC_ODL); + reg = SETFIELD(OB_DLL_PERF_MONITOR_SELECT_COUNTER >> ((link * 16) + 8), + reg, OB_DLL_PERF_MONITOR_SELECT_CRC_DLX); + xscom_write(dev->npu->chip_id, addr, reg); + OCAPIDBG(dev, "perf counter select %llx = %llx\n", addr, reg); +} + +static void check_perf_counters(struct npu2_dev *dev) +{ + uint64_t addr, reg, link0, link1; + + addr = OB_DLL_PERF_COUNTER0(dev->brick_index); + xscom_read(dev->npu->chip_id, addr, ®); + link0 = GETFIELD(PPC_BITMASK(0, 31), reg); + link1 = GETFIELD(PPC_BITMASK(32, 63), reg); + if (link0 || link1) + OCAPIERR(dev, "CRC error count link0=%08llx link1=%08llx\n", + link0, link1); +} + static void set_init_pattern(uint32_t gcid, struct npu2_dev *dev) { uint64_t reg, config_xscom; @@ -1048,6 +1108,7 @@ static int64_t npu2_opencapi_poll_link(struct pci_slot *slot) case OCAPI_SLOT_LINK_TRAINED: otl_enabletx(chip_id, dev->npu->xscom_base, dev); pci_slot_set_state(slot, OCAPI_SLOT_NORMAL); + check_perf_counters(dev); dev->phb_ocapi.scan_map = 1; return OPAL_SUCCESS; @@ -1569,6 +1630,7 @@ static void setup_device(struct npu2_dev *dev) setup_afu_mmio_bars(dev->npu->chip_id, dev->npu->xscom_base, dev); /* Procedure 13.1.3.9 - AFU Config BARs */ setup_afu_config_bars(dev->npu->chip_id, dev->npu->xscom_base, dev); + setup_perf_counters(dev); set_fence_control(dev->npu->chip_id, dev->npu->xscom_base, dev->brick_index, 0b00); |