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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/*
* Copyright (c) 2007-2017, Intel Corporation
*
* 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.
*/
//!
//! \file cm_event_rt_os.cpp
//! \brief Contains Linux-dependent CmEventRT member functions.
//!
#include "cm_event_rt.h"
#include "cm_queue_rt.h"
namespace CMRT_UMD
{
//*-----------------------------------------------------------------------------
//! Query the status of the task associated with the event
//! An event is generated when a task ( one kernel or multiples kernels running concurrently )
//! is enqueued.
//! This is a non-blocking call.
//! INPUT:
//! The reference to status. For now only two status, CM_STATUS_QUEUED and CM_STATUS_FINISHED, are supported
//! OUTPUT:
//! CM_SUCCESS if the status is successfully returned;
//! CM_FAILURE if not.
//*-----------------------------------------------------------------------------
CM_RT_API int32_t CmEventRT::GetStatus(CM_STATUS &status)
{
static const uint64_t TIME_OUT = 10000; // 10 microseconds.
if (m_status == CM_STATUS_FLUSHED || m_status == CM_STATUS_STARTED)
{
if (!m_osSignalTriggered)
{
CM_CHK_NULL_RETURN_CMERROR(m_osData);
MOS_LINUX_BO *buffer_object = reinterpret_cast<MOS_LINUX_BO*>(m_osData);
int result = mos_gem_bo_wait(buffer_object, TIME_OUT);
mos_gem_bo_clear_relocs(buffer_object, 0);
m_osSignalTriggered = (result == 0);
}
if (m_osSignalTriggered)
{
Query();
}
}
m_queue->FlushTaskWithoutSync();
status = m_status;
return CM_SUCCESS;
}
//*-----------------------------------------------------------------------------
//! Wait for the task completed with event-driven mechanism
//! When the task finished, CM will be notified and waken up by KMD.
//! INPUT:
//! Timeout in Milliseconds
//! OUTPUT:
//! CM_SUCCESS: if the task finished
//! CM_EXCEED_MAX_TIMEOUT: if timeout in synchoinization system call.
//! CM_FEATURE_NOT_SUPPORTED_IN_DRIVER: if driver out-of-sync.
//! CM_EVENT_DRIVEN_FAILURE : if synchronization system call returns WAIT_FAILED.
//*----------------------------------------------------------------------------------
CM_RT_API int32_t CmEventRT::WaitForTaskFinished(uint32_t timeOutMs)
{
int32_t result = CM_SUCCESS;
if( m_status == CM_STATUS_FINISHED )
goto finish;
//Make sure task flushed
while ( m_status == CM_STATUS_QUEUED )
{
m_queue->FlushTaskWithoutSync(); //Flush none if 1st task NOT finished yet
}
CM_ASSERT(m_osData != nullptr);
//Wait bo finished
result = mos_gem_bo_wait((MOS_LINUX_BO*)m_osData, 1000000LL*timeOutMs);
mos_gem_bo_clear_relocs((MOS_LINUX_BO*)m_osData, 0);
if (result) {
result = CM_EXCEED_MAX_TIMEOUT; //translate the drm ecode (-ETIME or potentional variants) to CM ecode.
goto finish;
}
//Query status
Query();
if(m_status != CM_STATUS_FINISHED)
{
// if bo_wai() returns success but status is not finished in time stamp
// it indicates something wrong in KMD, such as gpu reset happens.
// need to return error code to application.
result = CM_EXCEED_MAX_TIMEOUT;
goto finish;
}
//Call flush to pop/destroy finished task and flush task in EnqueueedQueue.
m_queue->FlushTaskWithoutSync();
finish:
return result;
}
//*-----------------------------------------------------------------------------
//! Unreference the bo in linux.
//! INPUT:
//! bo in a void * format
//! OUTPUT:
//! No output is needed
//*-----------------------------------------------------------------------------
void CmEventRT::UnreferenceIfNeeded(void *pdata)
{
if( pdata )
{
mos_bo_unreference((MOS_LINUX_BO*)pdata);
}
}
} // namespace
|
