--- /dev/null
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include "drm.h"
+#include "xf86drmMode.h"
+#include "xf86drm.h"
+#include "amdgpu.h"
+#include "amdgpu_drm.h"
+#include "amdgpu_internal.h"
+
+#define MAX_CARDS_SUPPORTED 4
+#define NUM_BUFFER_OBJECTS 1024
+
+#define SDMA_PACKET(op, sub_op, e) ((((e) & 0xFFFF) << 16) | \
+ (((sub_op) & 0xFF) << 8) | \
+ (((op) & 0xFF) << 0))
+
+#define SDMA_OPCODE_COPY 1
+# define SDMA_COPY_SUB_OPCODE_LINEAR 0
+
+
+#define SDMA_PACKET_SI(op, b, t, s, cnt) ((((op) & 0xF) << 28) | \
+ (((b) & 0x1) << 26) | \
+ (((t) & 0x1) << 23) | \
+ (((s) & 0x1) << 22) | \
+ (((cnt) & 0xFFFFF) << 0))
+#define SDMA_OPCODE_COPY_SI 3
+
+
+/** Help string for command line parameters */
+static const char usage[] =
+ "Usage: %s [-?h] [-b v|g|vg size] "
+ "[-c from to size count]\n"
+ "where:\n"
+ " b - Allocate a BO in VRAM, GTT or VRAM|GTT of size bytes.\n"
+ " This flag can be used multiple times. The first bo will\n"
+ " have id `1`, then second id `2`, ...\n"
+ " c - Copy size bytes from BO (bo_id1) to BO (bo_id2), count times\n"
+ " h - Display this help\n"
+ "\n"
+ "Sizes can be postfixes with k, m or g for kilo, mega and gigabyte scaling\n";
+
+/** Specified options strings for getopt */
+static const char options[] = "?hb:c:";
+
+/* Open AMD devices.
+ * Returns the fd of the first device it could open.
+ */
+static int amdgpu_open_device(void)
+{
+ drmDevicePtr devices[MAX_CARDS_SUPPORTED];
+ unsigned int i;
+ int drm_count;
+
+ drm_count = drmGetDevices2(0, devices, MAX_CARDS_SUPPORTED);
+ if (drm_count < 0) {
+ fprintf(stderr, "drmGetDevices2() returned an error %d\n",
+ drm_count);
+ return drm_count;
+ }
+
+ for (i = 0; i < drm_count; i++) {
+ drmVersionPtr version;
+ int fd;
+
+ /* If this is not PCI device, skip*/
+ if (devices[i]->bustype != DRM_BUS_PCI)
+ continue;
+
+ /* If this is not AMD GPU vender ID, skip*/
+ if (devices[i]->deviceinfo.pci->vendor_id != 0x1002)
+ continue;
+
+ if (!(devices[i]->available_nodes & 1 << DRM_NODE_RENDER))
+ continue;
+
+ fd = open(devices[i]->nodes[DRM_NODE_RENDER], O_RDWR | O_CLOEXEC);
+
+ /* This node is not available. */
+ if (fd < 0) continue;
+
+ version = drmGetVersion(fd);
+ if (!version) {
+ fprintf(stderr,
+ "Warning: Cannot get version for %s."
+ "Error is %s\n",
+ devices[i]->nodes[DRM_NODE_RENDER],
+ strerror(errno));
+ close(fd);
+ continue;
+ }
+
+ if (strcmp(version->name, "amdgpu")) {
+ /* This is not AMDGPU driver, skip.*/
+ drmFreeVersion(version);
+ close(fd);
+ continue;
+ }
+
+ drmFreeVersion(version);
+ drmFreeDevices(devices, drm_count);
+ return fd;
+ }
+
+ return -1;
+}
+
+amdgpu_device_handle device_handle;
+amdgpu_context_handle context_handle;
+
+amdgpu_bo_handle resources[NUM_BUFFER_OBJECTS];
+uint64_t virtual[NUM_BUFFER_OBJECTS];
+unsigned int num_buffers;
+uint32_t *pm4;
+
+int alloc_bo(uint32_t domain, uint64_t size)
+{
+ struct amdgpu_bo_alloc_request request = {};
+ amdgpu_bo_handle bo;
+ amdgpu_va_handle va;
+ uint64_t addr;
+ int r;
+
+ if (num_buffers >= NUM_BUFFER_OBJECTS)
+ return -ENOSPC;
+
+ request.alloc_size = size;
+ request.phys_alignment = 0;
+ request.preferred_heap = domain;
+ request.flags = 0;
+ r = amdgpu_bo_alloc(device_handle, &request, &bo);
+ if (r)
+ return r;
+
+ r = amdgpu_va_range_alloc(device_handle, amdgpu_gpu_va_range_general,
+ size, 0, 0, &addr, &va, 0);
+ if (r)
+ return r;
+
+ r = amdgpu_bo_va_op_raw(device_handle, bo, 0, size, addr,
+ AMDGPU_VM_PAGE_READABLE | AMDGPU_VM_PAGE_WRITEABLE |
+ AMDGPU_VM_PAGE_EXECUTABLE, AMDGPU_VA_OP_MAP);
+ if (r)
+ return r;
+
+ resources[num_buffers] = bo;
+ virtual[num_buffers] = addr;
+ fprintf(stdout, "Allocated BO number %u at 0x%lx, domain 0x%x, size %lu\n",
+ num_buffers++, addr, domain, size);
+ return 0;
+}
+
+int submit_ib(uint32_t from, uint32_t to, uint64_t size, uint32_t count)
+{
+ struct amdgpu_cs_request ibs_request;
+ struct amdgpu_cs_fence fence_status;
+ struct amdgpu_cs_ib_info ib_info;
+ uint64_t copied = size, delta;
+ struct timespec start, stop;
+
+ uint64_t src = virtual[from];
+ uint64_t dst = virtual[to];
+ uint32_t expired;
+ int i, r;
+
+ i = 0;
+ while (size) {
+ uint64_t bytes = size < 0x40000 ? size : 0x40000;
+
+ if (device_handle->info.family_id == AMDGPU_FAMILY_SI) {
+ pm4[i++] = SDMA_PACKET_SI(SDMA_OPCODE_COPY_SI, 0, 0, 0,
+ bytes);
+ pm4[i++] = 0xffffffff & dst;
+ pm4[i++] = 0xffffffff & src;
+ pm4[i++] = (0xffffffff00000000 & dst) >> 32;
+ pm4[i++] = (0xffffffff00000000 & src) >> 32;
+ } else {
+ pm4[i++] = SDMA_PACKET(SDMA_OPCODE_COPY,
+ SDMA_COPY_SUB_OPCODE_LINEAR,
+ 0);
+ if ( device_handle->info.family_id >= AMDGPU_FAMILY_AI)
+ pm4[i++] = bytes - 1;
+ else
+ pm4[i++] = bytes;
+ pm4[i++] = 0;
+ pm4[i++] = 0xffffffff & src;
+ pm4[i++] = (0xffffffff00000000 & src) >> 32;
+ pm4[i++] = 0xffffffff & dst;
+ pm4[i++] = (0xffffffff00000000 & dst) >> 32;
+ }
+
+ size -= bytes;
+ src += bytes;
+ dst += bytes;
+ }
+
+ memset(&ib_info, 0, sizeof(ib_info));
+ ib_info.ib_mc_address = virtual[0];
+ ib_info.size = i;
+
+ memset(&ibs_request, 0, sizeof(ibs_request));
+ ibs_request.ip_type = AMDGPU_HW_IP_DMA;
+ ibs_request.ring = 0;
+ ibs_request.number_of_ibs = 1;
+ ibs_request.ibs = &ib_info;
+ ibs_request.fence_info.handle = NULL;
+
+ r = clock_gettime(CLOCK_MONOTONIC, &start);
+ if (r)
+ return errno;
+
+ r = amdgpu_bo_list_create(device_handle, num_buffers, resources, NULL,
+ &ibs_request.resources);
+ if (r)
+ return r;
+
+ for (i = 0; i < count; ++i) {
+ r = amdgpu_cs_submit(context_handle, 0, &ibs_request, 1);
+ if (r)
+ return r;
+ }
+
+ r = amdgpu_bo_list_destroy(ibs_request.resources);
+ if (r)
+ return r;
+
+ memset(&fence_status, 0, sizeof(fence_status));
+ fence_status.ip_type = ibs_request.ip_type;
+ fence_status.ip_instance = 0;
+ fence_status.ring = ibs_request.ring;
+ fence_status.context = context_handle;
+ fence_status.fence = ibs_request.seq_no;
+ r = amdgpu_cs_query_fence_status(&fence_status,
+ AMDGPU_TIMEOUT_INFINITE,
+ 0, &expired);
+ if (r)
+ return r;
+
+ r = clock_gettime(CLOCK_MONOTONIC, &stop);
+ if (r)
+ return errno;
+
+ delta = stop.tv_nsec + stop.tv_sec * 1000000000UL;
+ delta -= start.tv_nsec + start.tv_sec * 1000000000UL;
+
+ fprintf(stdout, "Submitted %u IBs to copy from %u(%lx) to %u(%lx) %lu bytes took %lu usec\n",
+ count, from, virtual[from], to, virtual[to], copied, delta / 1000);
+ return 0;
+}
+
+void next_arg(int argc, char **argv, const char *msg)
+{
+ optarg = argv[optind++];
+ if (optind > argc || optarg[0] == '-') {
+ fprintf(stderr, "%s\n", msg);
+ exit(EXIT_FAILURE);
+ }
+}
+
+uint64_t parse_size(void)
+{
+ uint64_t size;
+ char ext[2];
+
+ ext[0] = 0;
+ if (sscanf(optarg, "%li%1[kmgKMG]", &size, ext) < 1) {
+ fprintf(stderr, "Can't parse size arg: %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ switch (ext[0]) {
+ case 'k':
+ case 'K':
+ size *= 1024;
+ break;
+ case 'm':
+ case 'M':
+ size *= 1024 * 1024;
+ break;
+ case 'g':
+ case 'G':
+ size *= 1024 * 1024 * 1024;
+ break;
+ default:
+ break;
+ }
+ return size;
+}
+
+int main(int argc, char **argv)
+{
+ uint32_t major_version, minor_version;
+ uint32_t domain, from, to, count;
+ uint64_t size;
+ int fd, r, c;
+
+ fd = amdgpu_open_device();
+ if (fd < 0) {
+ perror("Cannot open AMDGPU device");
+ exit(EXIT_FAILURE);
+ }
+
+ r = amdgpu_device_initialize(fd, &major_version, &minor_version, &device_handle);
+ if (r) {
+ fprintf(stderr, "amdgpu_device_initialize returned %d\n", r);
+ exit(EXIT_FAILURE);
+ }
+
+ r = amdgpu_cs_ctx_create(device_handle, &context_handle);
+ if (r) {
+ fprintf(stderr, "amdgpu_cs_ctx_create returned %d\n", r);
+ exit(EXIT_FAILURE);
+ }
+
+ if (argc == 1) {
+ fprintf(stderr, usage, argv[0]);
+ exit(EXIT_FAILURE);
+ }
+
+ r = alloc_bo(AMDGPU_GEM_DOMAIN_GTT, 2ULL * 1024 * 1024);
+ if (r) {
+ fprintf(stderr, "Buffer allocation failed with %d\n", r);
+ exit(EXIT_FAILURE);
+ }
+
+ r = amdgpu_bo_cpu_map(resources[0], (void **)&pm4);
+ if (r) {
+ fprintf(stderr, "Buffer mapping failed with %d\n", r);
+ exit(EXIT_FAILURE);
+ }
+
+ opterr = 0;
+ while ((c = getopt(argc, argv, options)) != -1) {
+ switch (c) {
+ case 'b':
+ if (!strcmp(optarg, "v"))
+ domain = AMDGPU_GEM_DOMAIN_VRAM;
+ else if (!strcmp(optarg, "g"))
+ domain = AMDGPU_GEM_DOMAIN_GTT;
+ else if (!strcmp(optarg, "vg"))
+ domain = AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT;
+ else {
+ fprintf(stderr, "Invalid domain: %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ next_arg(argc, argv, "Missing buffer size");
+ size = parse_size();
+ if (size < getpagesize()) {
+ fprintf(stderr, "Buffer size to small %lu\n", size);
+ exit(EXIT_FAILURE);
+ }
+ r = alloc_bo(domain, size);
+ if (r) {
+ fprintf(stderr, "Buffer allocation failed with %d\n", r);
+ exit(EXIT_FAILURE);
+ }
+ break;
+ case 'c':
+ if (sscanf(optarg, "%u", &from) != 1) {
+ fprintf(stderr, "Can't parse from buffer: %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ next_arg(argc, argv, "Missing to buffer");
+ if (sscanf(optarg, "%u", &to) != 1) {
+ fprintf(stderr, "Can't parse to buffer: %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ next_arg(argc, argv, "Missing size");
+ size = parse_size();
+ next_arg(argc, argv, "Missing count");
+ count = parse_size();
+ r = submit_ib(from, to, size, count);
+ if (r) {
+ fprintf(stderr, "IB submission failed with %d\n", r);
+ exit(EXIT_FAILURE);
+ }
+ break;
+ case '?':
+ case 'h':
+ fprintf(stderr, usage, argv[0]);
+ exit(EXIT_SUCCESS);
+ default:
+ fprintf(stderr, usage, argv[0]);
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ return EXIT_SUCCESS;
+}
projects / platform / upstream / libdrm.git / commitdiff