79 řádky
3.1 KiB
C++
79 řádky
3.1 KiB
C++
|
/*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "SDMAQueue.hpp"
|
||
|
|
|
||
|
|
SDMAQueue::SDMAQueue(void) {
|
||
|
|
CMD_NOP = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
SDMAQueue::~SDMAQueue(void) {
|
||
|
|
}
|
||
|
|
|
||
|
|
unsigned int SDMAQueue::Wptr() {
|
||
|
|
/* In SDMA queues write pointers are saved in bytes, convert the
|
||
|
|
* wptr value to DWORD to fit the way BaseQueue works. On Vega10
|
||
|
|
* the write ptr is 64-bit. We only read the low 32 bit (assuming
|
||
|
|
* the queue buffer is smaller than 4GB) and modulo divide by the
|
||
|
|
* queue size to simulate a 32-bit read pointer. */
|
||
|
|
return (*m_Resources.Queue_write_ptr % m_QueueBuf->Size()) /
|
||
|
|
sizeof(unsigned int);
|
||
|
|
}
|
||
|
|
|
||
|
|
unsigned int SDMAQueue::Rptr() {
|
||
|
|
/* In SDMA queues read pointers are saved in bytes, convert the
|
||
|
|
* read value to DWORD to fit the way BaseQueue works. On Vega10
|
||
|
|
* the read ptr is 64-bit. We only read the low 32 bit (assuming
|
||
|
|
* the queue buffer is smaller than 4GB) and modulo divide by the
|
||
|
|
* queue size to simulate a 32-bit read pointer. */
|
||
|
|
return (*m_Resources.Queue_read_ptr % m_QueueBuf->Size()) /
|
||
|
|
sizeof(unsigned int);
|
||
|
|
}
|
||
|
|
|
||
|
|
unsigned int SDMAQueue::RptrWhenConsumed() {
|
||
|
|
/* Rptr is same size and byte units as Wptr. Here we only care
|
||
|
|
* about the low 32-bits. When all packets are consumed, read and
|
||
|
|
* write pointers should have the same value. */
|
||
|
|
return *m_Resources.Queue_write_ptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
void SDMAQueue::SubmitPacket() {
|
||
|
|
// m_pending Wptr is in DWORDs
|
||
|
|
if (g_TestGPUFamilyId < FAMILY_AI) {
|
||
|
|
// Pre-Vega10 uses 32-bit wptr and doorbell
|
||
|
|
unsigned int wPtrInBytes = m_pendingWptr * sizeof(unsigned int);
|
||
|
|
MemoryBarrier();
|
||
|
|
*m_Resources.Queue_write_ptr = wPtrInBytes;
|
||
|
|
MemoryBarrier();
|
||
|
|
*(m_Resources.Queue_DoorBell) = wPtrInBytes;
|
||
|
|
} else {
|
||
|
|
// Vega10 and later uses 64-bit wptr and doorbell
|
||
|
|
HSAuint64 wPtrInBytes = m_pendingWptr64 * sizeof(unsigned int);
|
||
|
|
MemoryBarrier();
|
||
|
|
*m_Resources.Queue_write_ptr_aql = wPtrInBytes;
|
||
|
|
MemoryBarrier();
|
||
|
|
*(m_Resources.Queue_DoorBell_aql) = wPtrInBytes;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|