| #include <libpdbg.h> |
| |
| #include <analyzer/analyzer_main.hpp> |
| #include <attn/attention.hpp> |
| #include <attn/attn_config.hpp> |
| #include <attn/attn_handler.hpp> |
| #include <attn/attn_logging.hpp> |
| #include <attn/bp_handler.hpp> |
| #include <attn/ti_handler.hpp> |
| |
| #include <algorithm> |
| #include <iomanip> |
| #include <map> |
| #include <sstream> |
| #include <vector> |
| |
| namespace attn |
| { |
| |
| /** |
| * @brief Handle SBE vital attention |
| * |
| * @param i_attention Attention object |
| * @return 0 indicates that the vital attention was successfully handled |
| * 1 indicates that the vital attention was NOT successfully handled |
| */ |
| int handleVital(Attention* i_attention); |
| |
| /** |
| * @brief Handle checkstop attention |
| * |
| * @param i_attention Attention object |
| * @return 0 indicates that the checkstop attention was successfully handled |
| * 1 indicates that the checkstop attention was NOT successfully |
| * handled. |
| */ |
| int handleCheckstop(Attention* i_attention); |
| |
| /** |
| * @brief Handle special attention |
| * |
| * @param i_attention Attention object |
| * @return 0 indicates that the special attention was successfully handled |
| * 1 indicates that the special attention was NOT successfully handled |
| */ |
| int handleSpecial(Attention* i_attention); |
| |
| /** |
| * @brief The main attention handler logic |
| * |
| * @param i_breakpoints true = breakpoint special attn handling enabled |
| */ |
| void attnHandler(Config* i_config) |
| { |
| // Vector of active attentions to be handled |
| std::vector<Attention> active_attentions; |
| |
| uint32_t isr_val, isr_mask; |
| uint32_t proc; |
| |
| // loop through processors looking for active attentions |
| trace<level::INFO>("Attention handler started"); |
| |
| pdbg_target* target; |
| pdbg_for_each_class_target("proc", target) |
| { |
| if (PDBG_TARGET_ENABLED == pdbg_target_probe(target)) |
| { |
| proc = pdbg_target_index(target); // get processor number |
| |
| std::stringstream ss; // log message stream |
| ss << "checking processor " << proc; |
| trace<level::INFO>(ss.str().c_str()); |
| |
| // The processor FSI target is required for CFAM read |
| char path[16]; |
| sprintf(path, "/proc%d/fsi", proc); |
| pdbg_target* attnTarget = pdbg_target_from_path(nullptr, path); |
| |
| if (PDBG_TARGET_ENABLED == pdbg_target_probe(attnTarget)) |
| { |
| // get active attentions on processor |
| if (RC_SUCCESS != fsi_read(attnTarget, 0x1007, &isr_val)) |
| { |
| // event |
| eventAttentionFail(RC_CFAM_ERROR); |
| |
| // trace |
| trace<level::INFO>("Error! cfam read 0x1007 FAILED"); |
| } |
| else |
| { |
| std::stringstream ss; // log message stream |
| ss << "cfam 0x1007 = 0x"; |
| ss << std::hex << std::setw(8) << std::setfill('0'); |
| ss << isr_val; |
| trace<level::INFO>(ss.str().c_str()); |
| |
| // get interrupt enabled special attentions mask |
| if (RC_SUCCESS != fsi_read(attnTarget, 0x100d, &isr_mask)) |
| { |
| // event |
| eventAttentionFail(RC_CFAM_ERROR); |
| |
| // trace |
| trace<level::INFO>("Error! cfam read 0x100d FAILED"); |
| } |
| else |
| { |
| // CFAM 0x100d is expected to have bits set |
| // corresponding to attentions that can generate an |
| // attention interrupt. We will trace this register |
| // value to help debug cases where the attention handler |
| // was invoked unexpectedly. |
| |
| std::stringstream ss; // log message stream |
| ss << "cfam 0x100d = 0x"; |
| ss << std::hex << std::setw(8) << std::setfill('0'); |
| ss << isr_mask; |
| trace<level::INFO>(ss.str().c_str()); |
| |
| // bit 0 on "left": bit 30 = SBE vital attention |
| if (isr_val & 0x00000002) |
| { |
| active_attentions.emplace_back(Attention::Vital, |
| handleVital, target, |
| i_config); |
| } |
| |
| // bit 0 on "left": bit 1 = checkstop |
| if (isr_val & 0x40000000) |
| { |
| active_attentions.emplace_back(Attention::Checkstop, |
| handleCheckstop, |
| target, i_config); |
| } |
| |
| // bit 0 on "left": bit 2 = special attention |
| if (isr_val & 0x20000000) |
| { |
| active_attentions.emplace_back(Attention::Special, |
| handleSpecial, |
| target, i_config); |
| } |
| } // cfam 0x100d valid |
| } // cfam 0x1007 valid |
| } // proc target enabled |
| } // fsi target enabled |
| } // next processor |
| |
| // convert to heap, highest priority is at front |
| if (!std::is_heap(active_attentions.begin(), active_attentions.end())) |
| { |
| std::make_heap(active_attentions.begin(), active_attentions.end()); |
| } |
| |
| // call the attention handler until one is handled or all were attempted |
| while (false == active_attentions.empty()) |
| { |
| // handle highest priority attention, done if successful |
| if (RC_SUCCESS == active_attentions.front().handle()) |
| { |
| // an attention was handled so we are done |
| break; |
| } |
| |
| // move attention to back of vector |
| std::pop_heap(active_attentions.begin(), active_attentions.end()); |
| |
| // remove attention from vector |
| active_attentions.pop_back(); |
| } |
| } |
| |
| /** |
| * @brief Handle SBE vital attention |
| * |
| * @param i_attention Attention object |
| * @return 0 indicates that the vital attention was successfully handled |
| * 1 indicates that the vital attention was NOT successfully handled |
| */ |
| int handleVital(Attention* i_attention) |
| { |
| int rc = RC_SUCCESS; // assume vital handled |
| |
| trace<level::INFO>("vital handler started"); |
| |
| // if vital handling enabled, handle vital attention |
| if (false == (i_attention->getConfig()->getFlag(enVital))) |
| { |
| trace<level::INFO>("vital handling disabled"); |
| rc = RC_NOT_HANDLED; |
| } |
| else |
| { |
| eventVital(); |
| } |
| |
| return rc; |
| } |
| |
| /** |
| * @brief Handle checkstop attention |
| * |
| * @param i_attention Attention object |
| * @return 0 indicates that the checkstop attention was successfully handled |
| * 1 indicates that the checkstop attention was NOT successfully |
| * handled. |
| */ |
| int handleCheckstop(Attention* i_attention) |
| { |
| int rc = RC_SUCCESS; // assume checkstop handled |
| |
| trace<level::INFO>("checkstop handler started"); |
| |
| // if checkstop handling enabled, handle checkstop attention |
| if (false == (i_attention->getConfig()->getFlag(enCheckstop))) |
| { |
| trace<level::INFO>("Checkstop handling disabled"); |
| } |
| else |
| { |
| // Look for any attentions found in hardware. This will generate and |
| // comment a PEL if any errors are found. |
| if (true != analyzer::analyzeHardware()) |
| { |
| rc = RC_ANALYZER_ERROR; |
| } |
| } |
| |
| return rc; |
| } |
| |
| /** |
| * @brief Handle special attention |
| * |
| * @param i_attention Attention object |
| * @return 0 indicates that the special attention was successfully handled |
| * 1 indicates that the special attention was NOT successfully handled |
| */ |
| int handleSpecial(Attention* i_attention) |
| { |
| int rc = RC_SUCCESS; // assume special attention handled |
| |
| // The TI infor chipop will give us a pointer to the TI info data |
| uint8_t* tiInfo = nullptr; // ptr to TI info data |
| uint32_t tiInfoLen = 0; // length of TI info data |
| pdbg_target* attnProc = i_attention->getTarget(); // proc with attention |
| |
| if (attnProc != nullptr) |
| { |
| // The processor PIB target is required for get TI info chipop |
| char path[16]; |
| sprintf(path, "/proc%d/pib", pdbg_target_index(attnProc)); |
| pdbg_target* tiInfoTarget = pdbg_target_from_path(nullptr, path); |
| |
| if (nullptr != tiInfoTarget) |
| { |
| if (PDBG_TARGET_ENABLED == pdbg_target_probe(tiInfoTarget)) |
| { |
| trace<level::INFO>("calling sbe_mpipl_get_ti_info"); |
| sbe_mpipl_get_ti_info(tiInfoTarget, &tiInfo, &tiInfoLen); |
| if (tiInfo == nullptr) |
| { |
| trace<level::INFO>("TI info data ptr is null after call"); |
| } |
| } |
| } |
| } |
| |
| // Note: If we want to support running this application on architectures |
| // of different endian-ness we need to handler that here. The TI data |
| // will always be written in big-endian order. |
| |
| // If TI area exists and is marked valid we can assume TI occurred |
| if ((nullptr != tiInfo) && (0 != tiInfo[0])) |
| { |
| trace<level::INFO>("TI info data present and valid"); |
| |
| TiDataArea* tiDataArea = (TiDataArea*)tiInfo; |
| |
| // trace a few known TI data area values |
| std::stringstream ss; // log message stream |
| ss << "TI data command = " << tiDataArea->command; |
| trace<level::INFO>(ss.str().c_str()); |
| ss << "TI data SRC format = " << tiDataArea->srcFormat; |
| trace<level::INFO>(ss.str().c_str()); |
| ss << "TI data hb_terminate_type = " << tiDataArea->hbTerminateType; |
| trace<level::INFO>(ss.str().c_str()); |
| |
| if (true == (i_attention->getConfig()->getFlag(enTerminate))) |
| { |
| trace<level::INFO>("TI (terminate immediately)"); |
| |
| // Call TI special attention handler |
| rc = tiHandler(tiDataArea); |
| } |
| } |
| // TI area not valid, assume breakpoint |
| else |
| { |
| trace<level::INFO>("TI info NOT available, assume breakpoint"); |
| |
| if (true == (i_attention->getConfig()->getFlag(enBreakpoints))) |
| { |
| trace<level::INFO>("breakpoint"); |
| |
| // Call the breakpoint special attention handler |
| bpHandler(); |
| } |
| } |
| |
| // release TI data buffer |
| if (nullptr != tiInfo) |
| { |
| free(tiInfo); |
| } |
| |
| if (RC_SUCCESS != rc) |
| { |
| trace<level::INFO>("Special attn not handled"); |
| } |
| |
| return rc; |
| } |
| |
| } // namespace attn |