diff options
Diffstat (limited to 'drivers/cxl/core/mbox.c')
| -rw-r--r-- | drivers/cxl/core/mbox.c | 48 |
1 files changed, 42 insertions, 6 deletions
diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index 65185c9fa001..2626f3fff201 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -56,6 +56,9 @@ static struct cxl_mem_command cxl_mem_commands[CXL_MEM_COMMAND_ID_MAX] = { CXL_CMD(GET_LSA, 0x8, CXL_VARIABLE_PAYLOAD, 0), CXL_CMD(GET_HEALTH_INFO, 0, 0x12, 0), CXL_CMD(GET_LOG, 0x18, CXL_VARIABLE_PAYLOAD, CXL_CMD_FLAG_FORCE_ENABLE), + CXL_CMD(GET_LOG_CAPS, 0x10, 0x4, 0), + CXL_CMD(CLEAR_LOG, 0x10, 0, 0), + CXL_CMD(GET_SUP_LOG_SUBLIST, 0x2, CXL_VARIABLE_PAYLOAD, 0), CXL_CMD(SET_PARTITION_INFO, 0x0a, 0, 0), CXL_CMD(SET_LSA, CXL_VARIABLE_PAYLOAD, 0, 0), CXL_CMD(GET_ALERT_CONFIG, 0, 0x10, 0), @@ -331,6 +334,15 @@ static bool cxl_payload_from_user_allowed(u16 opcode, void *payload_in) return false; break; } + case CXL_MBOX_OP_CLEAR_LOG: { + const uuid_t *uuid = (uuid_t *)payload_in; + + /* + * Restrict the ‘Clear log’ action to only apply to + * Vendor debug logs. + */ + return uuid_equal(uuid, &DEFINE_CXL_VENDOR_DEBUG_UUID); + } default: break; } @@ -842,14 +854,38 @@ void cxl_event_trace_record(const struct cxl_memdev *cxlmd, enum cxl_event_type event_type, const uuid_t *uuid, union cxl_event *evt) { - if (event_type == CXL_CPER_EVENT_GEN_MEDIA) - trace_cxl_general_media(cxlmd, type, &evt->gen_media); - else if (event_type == CXL_CPER_EVENT_DRAM) - trace_cxl_dram(cxlmd, type, &evt->dram); - else if (event_type == CXL_CPER_EVENT_MEM_MODULE) + if (event_type == CXL_CPER_EVENT_MEM_MODULE) { trace_cxl_memory_module(cxlmd, type, &evt->mem_module); - else + return; + } + if (event_type == CXL_CPER_EVENT_GENERIC) { trace_cxl_generic_event(cxlmd, type, uuid, &evt->generic); + return; + } + + if (trace_cxl_general_media_enabled() || trace_cxl_dram_enabled()) { + u64 dpa, hpa = ULLONG_MAX; + struct cxl_region *cxlr; + + /* + * These trace points are annotated with HPA and region + * translations. Take topology mutation locks and lookup + * { HPA, REGION } from { DPA, MEMDEV } in the event record. + */ + guard(rwsem_read)(&cxl_region_rwsem); + guard(rwsem_read)(&cxl_dpa_rwsem); + + dpa = le64_to_cpu(evt->common.phys_addr) & CXL_DPA_MASK; + cxlr = cxl_dpa_to_region(cxlmd, dpa); + if (cxlr) + hpa = cxl_trace_hpa(cxlr, cxlmd, dpa); + + if (event_type == CXL_CPER_EVENT_GEN_MEDIA) + trace_cxl_general_media(cxlmd, type, cxlr, hpa, + &evt->gen_media); + else if (event_type == CXL_CPER_EVENT_DRAM) + trace_cxl_dram(cxlmd, type, cxlr, hpa, &evt->dram); + } } EXPORT_SYMBOL_NS_GPL(cxl_event_trace_record, CXL); |