1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/*
* Copyright (C) 2014-2018 Advanced Micro Devices, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#ifndef __KFD_PM4_QUEUE__H__
#define __KFD_PM4_QUEUE__H__
#include "BaseQueue.hpp"
#include "PM4Packet.hpp"
class PM4Queue : public BaseQueue {
public:
PM4Queue(void);
virtual ~PM4Queue(void);
// @brief update queue write pointer and sets the queue doorbell to the queue write pointer
virtual void SubmitPacket();
// @ return read pointer modulo queue size in dwords
virtual unsigned int Rptr();
// @ return write pointer modulo queue size in dwords
virtual unsigned int Wptr();
// @ return expected m_Resources.Queue_read_ptr when all packets consumed
virtual unsigned int RptrWhenConsumed();
/** Wait for all the packets submitted to the queue to be consumed. (i.e. wait until RPTR=WPTR).
* Note that all packets being consumed is not the same as all packets being processed.
* If event is set, wait all packets being processed.
* And we can benefit from that as it has
* 1) Less CPU usage (process can sleep, waiting for interrupt).
* 2) Lower latency (GPU only updates RPTR in memory periodically).
*/
virtual void Wait4PacketConsumption(HsaEvent *event = NULL, unsigned int timeOut = g_TestTimeOut);
protected:
virtual PACKETTYPE PacketTypeSupported() { return PACKETTYPE_PM4; }
virtual _HSA_QUEUE_TYPE GetQueueType() { return HSA_QUEUE_COMPUTE; }
};
#endif // __KFD_PM4_QUEUE__H__
|
