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/*
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Copyright (c) 2015-2017 Advanced Micro Devices, Inc. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef HIP_HCC_H
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#define HIP_HCC_H
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#include <hc.hpp>
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#include <hsa/hsa.h>
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#include "hsa/hsa_ext_amd.h"
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#include "hip/hip_runtime.h"
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#include "hip_util.h"
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#include "env.h"
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#if defined(__HCC__) && (__hcc_workweek__ < 16354)
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#error("This version of HIP requires a newer version of HCC.");
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#endif
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#define USE_IPC 1
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//---
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// Environment variables:
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// Intended to distinguish whether an environment variable should be visible only in debug mode, or in debug+release.
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//static const int debug = 0;
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extern const int release;
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// TODO - this blocks both kernels and memory ops. Perhaps should have separate env var for kernels?
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extern int HIP_LAUNCH_BLOCKING;
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extern int HIP_API_BLOCKING;
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extern int HIP_PRINT_ENV;
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extern int HIP_PROFILE_API;
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//extern int HIP_TRACE_API;
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extern int HIP_ATP;
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extern int HIP_DB;
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extern int HIP_STAGING_SIZE; /* size of staging buffers, in KB */
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extern int HIP_STREAM_SIGNALS; /* number of signals to allocate at stream creation */
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extern int HIP_VISIBLE_DEVICES; /* Contains a comma-separated sequence of GPU identifiers */
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extern int HIP_FORCE_P2P_HOST;
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extern int HIP_COHERENT_HOST_ALLOC;
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//---
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// Chicken bits for disabling functionality to work around potential issues:
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extern int HIP_SYNC_HOST_ALLOC;
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// TODO - remove when this is standard behavior.
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extern int HCC_OPT_FLUSH;
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// Class to assign a short TID to each new thread, for HIP debugging purposes.
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class TidInfo {
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public:
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TidInfo() ;
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int tid() const { return _shortTid; };
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uint64_t incApiSeqNum() { return ++_apiSeqNum; };
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uint64_t apiSeqNum() const { return _apiSeqNum; };
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private:
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int _shortTid;
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// monotonically increasing API sequence number for this threa.
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uint64_t _apiSeqNum;
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};
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struct ProfTrigger {
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static const uint64_t MAX_TRIGGER = std::numeric_limits<uint64_t>::max();
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void print (int tid) {
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std::cout << "Enabling tracing for ";
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for (auto iter=_profTrigger.begin(); iter != _profTrigger.end(); iter++) {
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std::cout << "tid:" << tid << "." << *iter << ",";
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}
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std::cout << "\n";
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};
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uint64_t nextTrigger() { return _profTrigger.empty() ? MAX_TRIGGER : _profTrigger.back(); };
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void add(uint64_t trigger) { _profTrigger.push_back(trigger); };
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void sort() { std::sort (_profTrigger.begin(), _profTrigger.end(), std::greater<int>()); };
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private:
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std::vector<uint64_t> _profTrigger;
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};
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//---
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//Extern tls
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extern thread_local hipError_t tls_lastHipError;
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extern thread_local TidInfo tls_tidInfo;
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extern std::vector<ProfTrigger> g_dbStartTriggers;
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extern std::vector<ProfTrigger> g_dbStopTriggers;
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//---
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//Forward defs:
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class ihipStream_t;
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class ihipDevice_t;
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class ihipCtx_t;
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// Color defs for debug messages:
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#define KNRM "\x1B[0m"
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#define KRED "\x1B[31m"
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#define KGRN "\x1B[32m"
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#define KYEL "\x1B[33m"
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#define KBLU "\x1B[34m"
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#define KMAG "\x1B[35m"
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#define KCYN "\x1B[36m"
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#define KWHT "\x1B[37m"
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extern const char *API_COLOR;
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extern const char *API_COLOR_END;
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// If set, thread-safety is enforced on all stream functions.
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// Stream functions will acquire a mutex before entering critical sections.
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#define STREAM_THREAD_SAFE 1
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#define CTX_THREAD_SAFE 1
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#define DEVICE_THREAD_SAFE 1
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// Compile debug trace mode - this prints debug messages to stderr when env var HIP_DB is set.
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// May be set to 0 to remove debug if checks - possible code size and performance difference?
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#define COMPILE_HIP_DB 1
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// Compile HIP tracing capability.
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// 0x1 = print a string at function entry with arguments.
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// 0x2 = prints a simple message with function name + return code when function exits.
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// 0x3 = print both.
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// Must be enabled at runtime with HIP_TRACE_API
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#define COMPILE_HIP_TRACE_API 0x3
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// Compile code that generates trace markers for CodeXL ATP at HIP function begin/end.
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// ATP is standard CodeXL format that includes timestamps for kernels, HSA RT APIs, and HIP APIs.
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#ifndef COMPILE_HIP_ATP_MARKER
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#define COMPILE_HIP_ATP_MARKER 0
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#endif
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// Compile support for trace markers that are displayed on CodeXL GUI at start/stop of each function boundary.
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// TODO - currently we print the trace message at the beginning. if we waited, we could also tls_tidInfo return codes, and any values returned
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// through ptr-to-args (ie the pointers allocated by hipMalloc).
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#if COMPILE_HIP_ATP_MARKER
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#include "CXLActivityLogger.h"
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#define MARKER_BEGIN(markerName,group) amdtBeginMarker(markerName, group, nullptr);
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#define MARKER_END() amdtEndMarker();
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#define RESUME_PROFILING amdtResumeProfiling(AMDT_ALL_PROFILING);
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#define STOP_PROFILING amdtStopProfiling(AMDT_ALL_PROFILING);
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#else
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// Swallow scoped markers:
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#define MARKER_BEGIN(markerName,group)
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#define MARKER_END()
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#define RESUME_PROFILING
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#define STOP_PROFILING
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#endif
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//---
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//HIP Trace modes
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#define TRACE_ALL 0 // 0x1
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#define TRACE_CMD 1 // 0x2
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#define TRACE_MEM 2 // 0x4
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//---
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//HIP_DB Debug flags:
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#define DB_API 0 /* 0x01 - shortcut to enable HIP_TRACE_API on single switch */
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#define DB_SYNC 1 /* 0x02 - trace synchronization pieces */
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#define DB_MEM 2 /* 0x04 - trace memory allocation / deallocation */
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#define DB_COPY 3 /* 0x08 - trace memory copy and peer commands. . */
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#define DB_MAX_FLAG 4
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// When adding a new debug flag, also add to the char name table below.
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//
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//
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struct DbName {
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const char *_color;
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const char *_shortName;
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};
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// This table must be kept in-sync with the defines above.
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static const DbName dbName [] =
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{
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{KGRN, "api"}, // not used,
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{KYEL, "sync"},
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{KCYN, "mem"},
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{KMAG, "copy"},
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};
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#if COMPILE_HIP_DB
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#define tprintf(trace_level, ...) {\
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if (HIP_DB & (1<<(trace_level))) {\
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char msgStr[1000];\
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snprintf(msgStr, 2000, __VA_ARGS__);\
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fprintf (stderr, " %ship-%s tid:%d:%s%s", dbName[trace_level]._color, dbName[trace_level]._shortName, tls_tidInfo.tid(), msgStr, KNRM); \
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}\
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}
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#else
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/* Compile to empty code */
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#define tprintf(trace_level, ...)
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#endif
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//---
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extern void recordApiTrace(std::string *fullStr, const std::string &apiStr);
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#if COMPILE_HIP_ATP_MARKER || (COMPILE_HIP_TRACE_API & 0x1)
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#define API_TRACE(forceTrace, ...)\
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{\
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tls_tidInfo.incApiSeqNum();\
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if (forceTrace || (HIP_PROFILE_API || (COMPILE_HIP_DB && (HIP_TRACE_API & (1<<TRACE_ALL))))) {\
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std::string apiStr = std::string(__func__) + " (" + ToString(__VA_ARGS__) + ')';\
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std::string fullStr;\
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recordApiTrace(&fullStr, apiStr);\
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if (HIP_PROFILE_API == 0x1) {MARKER_BEGIN(__func__, "HIP") }\
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else if (HIP_PROFILE_API == 0x2) {MARKER_BEGIN(fullStr.c_str(), "HIP"); }\
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}\
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}
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#else
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// Swallow API_TRACE
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#define API_TRACE(IS_CMD, ...)\
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tls_tidInfo.incApiSeqNum();
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#endif
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// Just initialize the HIP runtime, but don't log any trace information.
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#define HIP_INIT()\
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std::call_once(hip_initialized, ihipInit);\
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ihipCtxStackUpdate();
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#define HIP_SET_DEVICE()\
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ihipDeviceSetState();
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// This macro should be called at the beginning of every HIP API.
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// It initializes the hip runtime (exactly once), and
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// generates a trace string that can be output to stderr or to ATP file.
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#define HIP_INIT_API(...) \
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HIP_INIT()\
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API_TRACE(0, __VA_ARGS__);
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// Like above, but will trace with DB_CMD.
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// Replace HIP_INIT_API with this call inside important APIs that launch work on the GPU:
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// kernel launches, copy commands, memory sets, etc.
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#define HIP_INIT_CMD_API(...) \
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HIP_INIT()\
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API_TRACE((HIP_TRACE_API&(1<<TRACE_CMD)), __VA_ARGS__);
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// This macro should be called at the end of every HIP API, and only at the end of top-level hip APIS (not internal hip)
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// It has dual function: logs the last error returned for use by hipGetLastError,
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// and also prints the closing message when the debug trace is enabled.
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#define ihipLogStatus(hipStatus) \
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({\
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hipError_t localHipStatus = hipStatus; /*local copy so hipStatus only evaluated once*/ \
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tls_lastHipError = localHipStatus;\
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\
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if ((COMPILE_HIP_TRACE_API & 0x2) && HIP_TRACE_API & (1<<TRACE_ALL)) {\
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fprintf(stderr, " %ship-api tid:%d.%lu %-30s ret=%2d (%s)>>%s\n", (localHipStatus == 0) ? API_COLOR:KRED, tls_tidInfo.tid(),tls_tidInfo.apiSeqNum(), __func__, localHipStatus, ihipErrorString(localHipStatus), API_COLOR_END);\
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}\
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if (HIP_PROFILE_API) { MARKER_END(); }\
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localHipStatus;\
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})
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class ihipException : public std::exception
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{
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public:
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ihipException(hipError_t e) : _code(e) {};
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hipError_t _code;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef __cplusplus
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}
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#endif
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const hipStream_t hipStreamNull = 0x0;
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/**
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* HIP IPC Handle Size
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*/
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#define HIP_IPC_RESERVED_SIZE 24
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class ihipIpcMemHandle_t
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{
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public:
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#if USE_IPC
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hsa_amd_ipc_memory_t ipc_handle; ///< ipc memory handle on ROCr
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#endif
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size_t psize;
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char reserved[HIP_IPC_RESERVED_SIZE];
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};
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class ihipModule_t {
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public:
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hsa_executable_t executable;
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hsa_code_object_t object;
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std::string fileName;
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void *ptr;
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size_t size;
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std::list<hipFunction_t> funcTrack;
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ihipModule_t() : executable(), object(), fileName(), ptr(nullptr), size(0) {}
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};
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//---
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// Used to remove lock, for performance or stimulating bugs.
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class FakeMutex
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{
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public:
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void lock() { }
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bool try_lock() {return true; }
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void unlock() { }
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};
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#if STREAM_THREAD_SAFE
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typedef std::mutex StreamMutex;
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#else
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#warning "Stream thread-safe disabled"
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typedef FakeMutex StreamMutex;
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#endif
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// Pair Device and Ctx together, these could also be toggled separately if desired.
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#if CTX_THREAD_SAFE
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typedef std::mutex CtxMutex;
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#else
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typedef FakeMutex CtxMutex;
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#warning "Ctx thread-safe disabled"
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#endif
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#if DEVICE_THREAD_SAFE
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typedef std::mutex DeviceMutex;
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#else
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typedef FakeMutex DeviceMutex;
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#warning "Device thread-safe disabled"
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#endif
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//
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//---
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// Protects access to the member _data with a lock acquired on contruction/destruction.
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// T must contain a _mutex field which meets the BasicLockable requirements (lock/unlock)
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template<typename T>
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class LockedAccessor
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{
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public:
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LockedAccessor(T &criticalData, bool autoUnlock=true) :
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_criticalData(&criticalData),
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_autoUnlock(autoUnlock)
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{
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tprintf(DB_SYNC, "locking criticalData=%p for %s..\n", _criticalData, ToString(_criticalData->_parent).c_str());
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_criticalData->_mutex.lock();
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};
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~LockedAccessor()
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{
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if (_autoUnlock) {
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tprintf(DB_SYNC, "auto-unlocking criticalData=%p for %s...\n", _criticalData, ToString(_criticalData->_parent).c_str());
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_criticalData->_mutex.unlock();
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}
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}
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void unlock()
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{
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tprintf(DB_SYNC, "unlocking criticalData=%p for %s...\n", _criticalData, ToString(_criticalData->_parent).c_str());
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_criticalData->_mutex.unlock();
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}
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// Syntactic sugar so -> can be used to get the underlying type.
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T *operator->() { return _criticalData; };
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private:
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T *_criticalData;
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bool _autoUnlock;
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};
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template <typename MUTEX_TYPE>
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struct LockedBase {
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// Experts-only interface for explicit locking.
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// Most uses should use the lock-accessor.
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void lock() { _mutex.lock(); }
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void unlock() { _mutex.unlock(); }
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bool try_lock() { return _mutex.try_lock(); }
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MUTEX_TYPE _mutex;
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};
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template <typename MUTEX_TYPE>
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class ihipStreamCriticalBase_t : public LockedBase<MUTEX_TYPE>
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{
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public:
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ihipStreamCriticalBase_t(ihipStream_t *parentStream, hc::accelerator_view av) :
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_kernelCnt(0),
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_av(av),
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_hasQueue(true),
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_parent(parentStream)
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{
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};
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~ihipStreamCriticalBase_t() {
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}
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ihipStreamCriticalBase_t<StreamMutex> * mlock() { LockedBase<MUTEX_TYPE>::lock(); return this;};
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void munlock() {
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tprintf(DB_SYNC, "munlocking criticalData=%p for %s...\n", this, ToString(this->_parent).c_str());
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LockedBase<MUTEX_TYPE>::unlock();
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};
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ihipStreamCriticalBase_t<StreamMutex> * mtry_lock() {
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bool gotLock = LockedBase<MUTEX_TYPE>::try_lock() ;
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tprintf(DB_SYNC, "mtry_locking=%d criticalData=%p for %s...\n", gotLock, this, ToString(this->_parent).c_str());
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return gotLock ? this: nullptr;
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};
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public:
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ihipStream_t * _parent;
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uint32_t _kernelCnt; // Count of inflight kernels in this stream. Reset at ::wait().
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hc::accelerator_view _av;
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// True if the stream has an allocated queue (accelerato_view) for its use:
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// Always true at ihipStream creation but queue may later be stolen.
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// This acts as a valid bit for the _av.
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bool _hasQueue;
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private:
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};
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// if HIP code needs to acquire locks for both ihipCtx_t and ihipStream_t, it should first acquire the lock
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// for the ihipCtx_t and then for the individual streams. The locks should not be acquired in reverse order
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// or deadlock may occur. In some cases, it may be possible to reduce the range where the locks must be held.
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// HIP routines should avoid acquiring and releasing the same lock during the execution of a single HIP API.
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// Another option is to use try_lock in the innermost lock query.
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typedef ihipStreamCriticalBase_t<StreamMutex> ihipStreamCritical_t;
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typedef LockedAccessor<ihipStreamCritical_t> LockedAccessor_StreamCrit_t;
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//---
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// Internal stream structure.
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class ihipStream_t {
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public:
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enum ScheduleMode {Auto, Spin, Yield};
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typedef uint64_t SeqNum_t ;
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// TODOD -make av a reference to avoid shared_ptr overhead?
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ihipStream_t(ihipCtx_t *ctx, hc::accelerator_view av, unsigned int flags);
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~ihipStream_t();
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// kind is hipMemcpyKind
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void locked_copySync (void* dst, const void* src, size_t sizeBytes, unsigned kind, bool resolveOn = true);
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void locked_copyAsync(void* dst, const void* src, size_t sizeBytes, unsigned kind);
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void lockedSymbolCopySync(hc::accelerator &acc, void *dst, void* src, size_t sizeBytes, size_t offset, unsigned kind);
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void lockedSymbolCopyAsync(hc::accelerator &acc, void *dst, void* src, size_t sizeBytes, size_t offset, unsigned kind);
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//---
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// Member functions that begin with locked_ are thread-safe accessors - these acquire / release the critical mutex.
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LockedAccessor_StreamCrit_t lockopen_preKernelCommand();
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void lockclose_postKernelCommand(const char *kernelName, hc::accelerator_view *av);
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void locked_wait();
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hc::accelerator_view* locked_getAv() { LockedAccessor_StreamCrit_t crit(_criticalData); return &(crit->_av); };
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void locked_waitEvent(hipEvent_t event);
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void locked_recordEvent(hipEvent_t event);
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//---
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// Use this if we already have the stream critical data mutex:
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void wait(LockedAccessor_StreamCrit_t &crit);
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void launchModuleKernel(hc::accelerator_view av, hsa_signal_t signal,
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uint32_t blockDimX, uint32_t blockDimY, uint32_t blockDimZ,
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uint32_t gridDimX, uint32_t gridDimY, uint32_t gridDimZ,
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uint32_t groupSegmentSize, uint32_t sharedMemBytes,
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void *kernarg, size_t kernSize, uint64_t kernel);
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//-- Non-racy accessors:
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// These functions access fields set at initialization time and are non-racy (so do not acquire mutex)
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const ihipDevice_t * getDevice() const;
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ihipCtx_t * getCtx() const;
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void ensureHaveQueue(LockedAccessor_StreamCrit_t &streamCrit);
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public:
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//---
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//Public member vars - these are set at initialization and never change:
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SeqNum_t _id; // monotonic sequence ID
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unsigned _flags;
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private:
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// The unsigned return is hipMemcpyKind
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unsigned resolveMemcpyDirection(bool srcInDeviceMem, bool dstInDeviceMem);
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void resolveHcMemcpyDirection(unsigned hipMemKind,
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const hc::AmPointerInfo *dstPtrInfo, const hc::AmPointerInfo *srcPtrInfo,
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hc::hcCommandKind *hcCopyDir,
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ihipCtx_t **copyDevice,
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bool *forceUnpinnedCopy);
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bool canSeeMemory(const ihipCtx_t *thisCtx, const hc::AmPointerInfo *dstInfo, const hc::AmPointerInfo *srcInfo);
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void addSymbolPtrToTracker(hc::accelerator& acc, void* ptr, size_t sizeBytes);
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public: // TODO - move private
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// Critical Data - MUST be accessed through LockedAccessor_StreamCrit_t
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ihipStreamCritical_t _criticalData;
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private: // Data
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std::mutex _hasQueueLock;
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ihipCtx_t *_ctx; // parent context that owns this stream.
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// Friends:
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friend std::ostream& operator<<(std::ostream& os, const ihipStream_t& s);
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friend hipError_t hipStreamQuery(hipStream_t);
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ScheduleMode _scheduleMode;
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};
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//----
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// Internal event structure:
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enum hipEventStatus_t {
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hipEventStatusUnitialized = 0, // event is unutilized, must be "Created" before use.
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hipEventStatusCreated = 1,
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hipEventStatusRecording = 2, // event has been enqueued to record something.
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hipEventStatusRecorded = 3, // event has been recorded - timestamps are valid.
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} ;
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// internal hip event structure.
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struct ihipEvent_t {
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hipEventStatus_t _state;
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hipStream_t _stream; // Stream where the event is recorded, or NULL if all streams.
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unsigned _flags;
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hc::completion_future _marker;
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uint64_t _timestamp; // store timestamp, may be set on host or by marker.
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} ;
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//=============================================================================
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//class ihipDeviceCriticalBase_t
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template <typename MUTEX_TYPE>
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class ihipDeviceCriticalBase_t : LockedBase<MUTEX_TYPE>
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{
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public:
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ihipDeviceCriticalBase_t(ihipDevice_t *parentDevice) :
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_parent(parentDevice)
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{
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};
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~ihipDeviceCriticalBase_t() {
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}
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// Contexts:
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void addContext(ihipCtx_t *ctx);
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void removeContext(ihipCtx_t *ctx);
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std::list<ihipCtx_t*> &ctxs() { return _ctxs; };
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const std::list<ihipCtx_t*> &const_ctxs() const { return _ctxs; };
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int getcount() {return _ctxCount;};
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friend class LockedAccessor<ihipDeviceCriticalBase_t>;
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private:
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ihipDevice_t *_parent;
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//--- Context Tracker:
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std::list< ihipCtx_t* > _ctxs; // contexts associated with this device across all threads.
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int _ctxCount;
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};
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typedef ihipDeviceCriticalBase_t<DeviceMutex> ihipDeviceCritical_t;
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typedef LockedAccessor<ihipDeviceCritical_t> LockedAccessor_DeviceCrit_t;
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//----
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// Properties of the HIP device.
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// Multiple contexts can point to same device.
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|
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class ihipDevice_t
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{
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public:
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ihipDevice_t(unsigned deviceId, unsigned deviceCnt, hc::accelerator &acc);
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~ihipDevice_t();
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// Accessors:
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ihipCtx_t *getPrimaryCtx() const { return _primaryCtx; };
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void locked_removeContext(ihipCtx_t *c);
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void locked_reset();
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ihipDeviceCritical_t &criticalData() { return _criticalData; };
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public:
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unsigned _deviceId; // device ID
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hc::accelerator _acc;
|
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|
|
hsa_agent_t _hsaAgent; // hsa agent handle
|
|
|
|
|
|
|
|
|
|
//! Number of compute units supported by the device:
|
|
|
|
|
unsigned _computeUnits;
|
|
|
|
|
hipDeviceProp_t _props; // saved device properties.
|
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|
|
|
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|
|
|
|
// TODO - report this through device properties, base on HCC API call.
|
|
|
|
|
int _isLargeBar;
|
|
|
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|
|
|
|
|
ihipCtx_t *_primaryCtx;
|
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|
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|
|
int _state; //1 if device is set otherwise 0
|
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|
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|
|
private:
|
|
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|
|
hipError_t initProperties(hipDeviceProp_t* prop);
|
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|
|
private:
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|
|
|
|
ihipDeviceCritical_t _criticalData;
|
|
|
|
|
};
|
|
|
|
|
//=============================================================================
|
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|
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|
|
//=============================================================================
|
|
|
|
|
//class ihipCtxCriticalBase_t
|
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|
|
|
template <typename MUTEX_TYPE>
|
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|
|
|
class ihipCtxCriticalBase_t : LockedBase<MUTEX_TYPE>
|
|
|
|
|
{
|
|
|
|
|
public:
|
|
|
|
|
ihipCtxCriticalBase_t(ihipCtx_t *parentCtx, unsigned deviceCnt) :
|
|
|
|
|
_parent(parentCtx),
|
|
|
|
|
_peerCnt(0)
|
|
|
|
|
{
|
|
|
|
|
_peerAgents = new hsa_agent_t[deviceCnt];
|
|
|
|
|
};
|
|
|
|
|
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|
|
|
|
~ihipCtxCriticalBase_t() {
|
|
|
|
|
if (_peerAgents != nullptr) {
|
|
|
|
|
delete _peerAgents;
|
|
|
|
|
_peerAgents = nullptr;
|
|
|
|
|
}
|
|
|
|
|
_peerCnt = 0;
|
|
|
|
|
}
|
|
|
|
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|
|
// Streams:
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|
|
|
void addStream(ihipStream_t *stream);
|
|
|
|
|
std::list<ihipStream_t*> &streams() { return _streams; };
|
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|
|
const std::list<ihipStream_t*> &const_streams() const { return _streams; };
|
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|
|
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|
|
|
// Peer Accessor classes:
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|
|
|
bool isPeerWatcher(const ihipCtx_t *peer); // returns True if peer has access to memory physically located on this device.
|
|
|
|
|
bool addPeerWatcher(const ihipCtx_t *thisCtx, ihipCtx_t *peer);
|
|
|
|
|
bool removePeerWatcher(const ihipCtx_t *thisCtx, ihipCtx_t *peer);
|
|
|
|
|
void resetPeerWatchers(ihipCtx_t *thisDevice);
|
|
|
|
|
void printPeerWatchers(FILE *f) const;
|
|
|
|
|
|
|
|
|
|
uint32_t peerCnt() const { return _peerCnt; };
|
|
|
|
|
hsa_agent_t *peerAgents() const { return _peerAgents; };
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// TODO - move private
|
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|
|
|
std::list<ihipCtx_t*> _peers; // list of enabled peer devices.
|
|
|
|
|
|
|
|
|
|
friend class LockedAccessor<ihipCtxCriticalBase_t>;
|
|
|
|
|
private:
|
|
|
|
|
ihipCtx_t * _parent;
|
|
|
|
|
|
|
|
|
|
//--- Stream Tracker:
|
|
|
|
|
std::list< ihipStream_t* > _streams; // streams associated with this device.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//--- Peer Tracker:
|
|
|
|
|
// These reflect the currently Enabled set of peers for this GPU:
|
|
|
|
|
// Enabled peers have permissions to access the memory physically allocated on this device.
|
|
|
|
|
// Note the peers always contain the self agent for easy interfacing with HSA APIs.
|
|
|
|
|
uint32_t _peerCnt; // number of enabled peers
|
|
|
|
|
hsa_agent_t *_peerAgents; // efficient packed array of enabled agents (to use for allocations.)
|
|
|
|
|
private:
|
|
|
|
|
void recomputePeerAgents();
|
|
|
|
|
};
|
|
|
|
|
// Note Mutex type Real/Fake selected based on CtxMutex
|
|
|
|
|
typedef ihipCtxCriticalBase_t<CtxMutex> ihipCtxCritical_t;
|
|
|
|
|
|
|
|
|
|
// This type is used by functions that need access to the critical device structures.
|
|
|
|
|
typedef LockedAccessor<ihipCtxCritical_t> LockedAccessor_CtxCrit_t;
|
|
|
|
|
//=============================================================================
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//=============================================================================
|
|
|
|
|
//class ihipCtx_t:
|
|
|
|
|
// A HIP CTX (context) points at one of the existing devices and contains the streams,
|
|
|
|
|
// peer-to-peer mappings, creation flags. Multiple contexts can point to the same
|
|
|
|
|
// device.
|
|
|
|
|
//
|
|
|
|
|
class ihipCtx_t
|
|
|
|
|
{
|
|
|
|
|
public: // Functions:
|
|
|
|
|
ihipCtx_t(ihipDevice_t *device, unsigned deviceCnt, unsigned flags); // note: calls constructor for _criticalData
|
|
|
|
|
~ihipCtx_t();
|
|
|
|
|
|
|
|
|
|
// Functions which read or write the critical data are named locked_.
|
|
|
|
|
// (might be better called "locking_"
|
|
|
|
|
// ihipCtx_t does not use recursive locks so the ihip implementation must avoid calling a locked_ function from within a locked_ function.
|
|
|
|
|
// External functions which call several locked_ functions will acquire and release the lock for each function. if this occurs in
|
|
|
|
|
// performance-sensitive code we may want to refactor by adding non-locked functions and creating a new locked_ member function to call them all.
|
|
|
|
|
void locked_removeStream(ihipStream_t *s);
|
|
|
|
|
void locked_reset();
|
|
|
|
|
void locked_waitAllStreams();
|
|
|
|
|
void locked_syncDefaultStream(bool waitOnSelf);
|
|
|
|
|
|
|
|
|
|
// Will allocate a queue and assign it to the needyStream:
|
|
|
|
|
hc::accelerator_view stealActiveQueue(LockedAccessor_CtxCrit_t &ctxCrit, ihipStream_t *needyStream);
|
|
|
|
|
hc::accelerator_view createOrStealQueue(LockedAccessor_CtxCrit_t &ctxCrit);
|
|
|
|
|
|
|
|
|
|
ihipCtxCritical_t &criticalData() { return _criticalData; };
|
|
|
|
|
|
|
|
|
|
const ihipDevice_t *getDevice() const { return _device; };
|
|
|
|
|
int getDeviceNum() const { return _device->_deviceId; };
|
|
|
|
|
|
|
|
|
|
// TODO - review uses of getWriteableDevice(), can these be converted to getDevice()
|
|
|
|
|
ihipDevice_t *getWriteableDevice() const { return _device; };
|
|
|
|
|
|
|
|
|
|
std::string toString() const;
|
|
|
|
|
|
|
|
|
|
public: // Data
|
|
|
|
|
// The NULL stream is used if no other stream is specified.
|
|
|
|
|
// Default stream has special synchronization properties with other streams.
|
|
|
|
|
ihipStream_t *_defaultStream;
|
|
|
|
|
|
|
|
|
|
// Flags specified when the context is created:
|
|
|
|
|
unsigned _ctxFlags;
|
|
|
|
|
|
|
|
|
|
private:
|
|
|
|
|
ihipDevice_t *_device;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
private: // Critical data, protected with locked access:
|
|
|
|
|
// Members of _protected data MUST be accessed through the LockedAccessor.
|
|
|
|
|
// Search for LockedAccessor<ihipCtxCritical_t> for examples; do not access _criticalData directly.
|
|
|
|
|
ihipCtxCritical_t _criticalData;
|
|
|
|
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//=================================================================================================
|
|
|
|
|
// Global variable definition:
|
|
|
|
|
extern std::once_flag hip_initialized;
|
|
|
|
|
extern unsigned g_deviceCnt;
|
|
|
|
|
extern hsa_agent_t g_cpu_agent ; // the CPU agent.
|
|
|
|
|
|
|
|
|
|
//=================================================================================================
|
|
|
|
|
// Extern functions:
|
|
|
|
|
extern void ihipInit();
|
|
|
|
|
extern const char *ihipErrorString(hipError_t);
|
|
|
|
|
extern ihipCtx_t *ihipGetTlsDefaultCtx();
|
|
|
|
|
extern void ihipSetTlsDefaultCtx(ihipCtx_t *ctx);
|
|
|
|
|
extern hipError_t ihipSynchronize(void);
|
|
|
|
|
extern void ihipCtxStackUpdate();
|
|
|
|
|
extern hipError_t ihipDeviceSetState();
|
|
|
|
|
|
|
|
|
|
extern ihipDevice_t *ihipGetDevice(int);
|
|
|
|
|
ihipCtx_t * ihipGetPrimaryCtx(unsigned deviceIndex);
|
|
|
|
|
|
|
|
|
|
extern void ihipSetTs(hipEvent_t e);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
hipStream_t ihipSyncAndResolveStream(hipStream_t);
|
|
|
|
|
|
|
|
|
|
// Stream printf functions:
|
|
|
|
|
inline std::ostream& operator<<(std::ostream& os, const ihipStream_t& s)
|
|
|
|
|
{
|
|
|
|
|
os << "stream:";
|
|
|
|
|
os << s.getDevice()->_deviceId;;
|
|
|
|
|
os << '.';
|
|
|
|
|
os << s._id;
|
|
|
|
|
return os;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
inline std::ostream & operator<<(std::ostream& os, const dim3& s)
|
|
|
|
|
{
|
|
|
|
|
os << '{';
|
|
|
|
|
os << s.x;
|
|
|
|
|
os << ',';
|
|
|
|
|
os << s.y;
|
|
|
|
|
os << ',';
|
|
|
|
|
os << s.z;
|
|
|
|
|
os << '}';
|
|
|
|
|
return os;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
inline std::ostream & operator<<(std::ostream& os, const gl_dim3& s)
|
|
|
|
|
{
|
|
|
|
|
os << '{';
|
|
|
|
|
os << s.x;
|
|
|
|
|
os << ',';
|
|
|
|
|
os << s.y;
|
|
|
|
|
os << ',';
|
|
|
|
|
os << s.z;
|
|
|
|
|
os << '}';
|
|
|
|
|
return os;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Stream printf functions:
|
|
|
|
|
inline std::ostream& operator<<(std::ostream& os, const hipEvent_t& e)
|
|
|
|
|
{
|
|
|
|
|
os << "event:" << std::hex << static_cast<void*> (e);
|
|
|
|
|
return os;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
inline std::ostream& operator<<(std::ostream& os, const ihipCtx_t* c)
|
|
|
|
|
{
|
|
|
|
|
os << "ctx:" << static_cast<const void*> (c)
|
|
|
|
|
<< ".dev:" << c->getDevice()->_deviceId;
|
|
|
|
|
return os;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// Helper functions that are used across src files:
|
|
|
|
|
namespace hip_internal {
|
|
|
|
|
hipError_t memcpyAsync (void* dst, const void* src, size_t sizeBytes, hipMemcpyKind kind, hipStream_t stream);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#endif
|
Aditya Atluri