A Modern GPGPU API & wip linux RDNA2+ Driver
rdna
driver
linux
gpu
wip
+11
-3
+7
-3
libvektor/test/02_hello_queue/hello_queue.cpp
+7
-3
libvektor/test/02_hello_queue/hello_queue.cpp
···
17
17
printf("x: %p (%p) (%llu bytes)\n", x.cpu, x.gpu, x.size);
18
18
printf("y: %p (%p) (%llu bytes)\n", y.cpu, y.gpu, y.size);
19
19
20
+
// @todo: wait for address ok?
21
+
20
22
auto dma = vektor::create_queue(dev, vektor::QueueType::Transfer);
21
23
22
24
auto l1 = vektor::start_recording(dma);
···
26
28
27
29
vektor::submit(dma, l1);
28
30
29
-
// @todo: how to wait on cpu for DMA transfer? TODO?
31
+
// @todo: hacky bussy-wait
30
32
printf("x[0]: %u\n", ((uint32_t *)x.cpu)[0]);
31
-
sleep(1);
33
+
34
+
while(*((uint32_t *)x.cpu) == 0);
32
35
printf("x[0]: %u\n", ((uint32_t *)x.cpu)[0]);
33
36
*((uint32_t *)y.cpu) = 1337;
34
-
sleep(1);
37
+
38
+
while(*((uint32_t *)x.cpu) == 1);
35
39
printf("x[0]: %u\n", ((uint32_t *)x.cpu)[0]);
36
40
37
41
vektor::free(dev, x);
+4
libvektor/test/03_hello_2queue/hello_2queue.cpp
+4
libvektor/test/03_hello_2queue/hello_2queue.cpp
···
45
45
printf("x[0]: %u\n", ((uint32_t *)x.cpu)[0]);
46
46
sleep(1);
47
47
printf("x[0]: %u\n", ((uint32_t *)x.cpu)[0]);
48
+
sleep(1);
49
+
printf("x[0]: %u\n", ((uint32_t *)x.cpu)[0]);
50
+
sleep(1);
51
+
printf("x[0]: %u\n", ((uint32_t *)x.cpu)[0]);
48
52
49
53
printf("\n");
50
54
printf("ts0: %lu\n", ((uint64_t *)ts.cpu)[0]);