Prepare for integration into rocr

Change-Id: I6102b9910dbb9d09e09bb262a03c5c0ad4ce66f4


[ROCm/ROCR-Runtime commit: 11fd5c2562]

projects/rocr-runtime/libhsakmt/tests/kfdtest/src/SDMAQueue.cpp

@@ -0,0 +1,93 @@
+/*
+ * 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"
+#include "SDMAPacket.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 (m_FamilyId < 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;
+    }
+}
+
+void SDMAQueue::Wait4PacketConsumption(HsaEvent *event, unsigned int timeOut) {
+    if (event) {
+        PlacePacket(SDMAFencePacket(m_FamilyId, (void*)event->EventData.HWData2, event->EventId));
+
+        PlaceAndSubmitPacket(SDMATrapPacket(event->EventId));
+
+        EXPECT_SUCCESS(hsaKmtWaitOnEvent(event, timeOut));
+    } else {
+        BaseQueue::Wait4PacketConsumption(NULL, timeOut);
+    }
+}