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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     uint32_t numReservedThreads; // Number of threads reserved for API use
59     THREAD_DATA *pApiThreadData;
60 };
61 
62 typedef std::unordered_set<uint32_t> TileSet;
63 
64 void CreateThreadPool(SWR_CONTEXT *pContext, THREAD_POOL *pPool);
65 void StartThreadPool(SWR_CONTEXT* pContext, THREAD_POOL* pPool);
66 void DestroyThreadPool(SWR_CONTEXT *pContext, THREAD_POOL *pPool);
67 
68 // Expose FE and BE worker functions to the API thread if single threaded
69 void WorkOnFifoFE(SWR_CONTEXT *pContext, uint32_t workerId, uint32_t &curDrawFE);
70 bool WorkOnFifoBE(SWR_CONTEXT *pContext, uint32_t workerId, uint32_t &curDrawBE, TileSet &usedTiles, uint32_t numaNode, uint32_t numaMask);
71 void WorkOnCompute(SWR_CONTEXT *pContext, uint32_t workerId, uint32_t &curDrawBE);
72 int32_t CompleteDrawContext(SWR_CONTEXT* pContext, DRAW_CONTEXT* pDC);
73 
74 void BindApiThread(SWR_CONTEXT *pContext, uint32_t apiThreadId);
75