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      1 /****************************************************************************
      2 * Copyright (C) 2014-2016 Intel Corporation.   All Rights Reserved.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice (including the next
     12 * paragraph) shall be included in all copies or substantial portions of the
     13 * Software.
     14 *
     15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     21 * IN THE SOFTWARE.
     22 *
     23 * @file threads.h
     24 *
     25 * @brief Definitions for SWR threading model.
     26 *
     27 ******************************************************************************/
     28 #pragma once
     29 
     30 #include "knobs.h"
     31 
     32 #include <unordered_set>
     33 #include <thread>
     34 typedef std::thread* THREAD_PTR;
     35 
     36 struct SWR_CONTEXT;
     37 struct DRAW_CONTEXT;
     38 
     39 struct THREAD_DATA
     40 {
     41     uint32_t procGroupId;   // Will always be 0 for non-Windows OS
     42     uint32_t threadId;      // within the procGroup for Windows
     43     uint32_t numaId;        // NUMA node id
     44     uint32_t coreId;        // Core id
     45     uint32_t htId;          // Hyperthread id
     46     uint32_t workerId;
     47     SWR_CONTEXT *pContext;
     48     bool forceBindProcGroup; // Only useful when MAX_WORKER_THREADS is set.
     49 };
     50 
     51 
     52 struct THREAD_POOL
     53 {
     54     THREAD_PTR* pThreads;
     55     uint32_t numThreads;
     56     uint32_t numaMask;
     57     THREAD_DATA *pThreadData;
     58 };
     59 
     60 typedef std::unordered_set<uint32_t> TileSet;
     61 
     62 void CreateThreadPool(SWR_CONTEXT *pContext, THREAD_POOL *pPool);
     63 void StartThreadPool(SWR_CONTEXT* pContext, THREAD_POOL* pPool);
     64 void DestroyThreadPool(SWR_CONTEXT *pContext, THREAD_POOL *pPool);
     65 
     66 // Expose FE and BE worker functions to the API thread if single threaded
     67 void WorkOnFifoFE(SWR_CONTEXT *pContext, uint32_t workerId, uint32_t &curDrawFE);
     68 bool WorkOnFifoBE(SWR_CONTEXT *pContext, uint32_t workerId, uint32_t &curDrawBE, TileSet &usedTiles, uint32_t numaNode, uint32_t numaMask);
     69 void WorkOnCompute(SWR_CONTEXT *pContext, uint32_t workerId, uint32_t &curDrawBE);
     70 int32_t CompleteDrawContext(SWR_CONTEXT* pContext, DRAW_CONTEXT* pDC);
     71