| /* |
| * Copyright © 2011 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 (including the next |
| * paragraph) 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. |
| * |
| * Authors: |
| * Chris Wilson <chris@chris-wilson.co.uk> |
| * |
| */ |
| |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <fcntl.h> |
| #include <inttypes.h> |
| #include <errno.h> |
| #include <sys/stat.h> |
| #include <sys/ioctl.h> |
| #include <sys/time.h> |
| #include <time.h> |
| |
| #include "drm.h" |
| #include "ioctl_wrappers.h" |
| #include "drmtest.h" |
| #include "intel_io.h" |
| #include "igt_stats.h" |
| |
| enum mode { NOP, CREATE, SWITCH, }; |
| |
| #define LOCAL_I915_EXEC_NO_RELOC (1<<11) |
| #define LOCAL_I915_EXEC_HANDLE_LUT (1<<12) |
| |
| static uint64_t elapsed(const struct timespec *start, |
| const struct timespec *end, |
| int loop) |
| { |
| return (1000000000ULL*(end->tv_sec - start->tv_sec) + (end->tv_nsec - start->tv_nsec))/loop; |
| } |
| |
| static int __gem_execbuf(int fd, struct drm_i915_gem_execbuffer2 *execbuf) |
| { |
| int err = 0; |
| if (drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, execbuf)) |
| err = -errno; |
| return err; |
| } |
| |
| static uint32_t batch(int fd) |
| { |
| const uint32_t buf[] = {MI_BATCH_BUFFER_END}; |
| uint32_t handle = gem_create(fd, 4096); |
| gem_write(fd, handle, 0, buf, sizeof(buf)); |
| return handle; |
| } |
| |
| static uint32_t __gem_context_create(int fd) |
| { |
| struct drm_i915_gem_context_create create; |
| |
| memset(&create, 0, sizeof(create)); |
| drmIoctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, &create); |
| |
| return create.ctx_id; |
| } |
| |
| static int loop(unsigned ring, int reps, enum mode mode) |
| { |
| struct drm_i915_gem_execbuffer2 execbuf; |
| struct drm_i915_gem_exec_object2 gem_exec; |
| int count, fd; |
| uint32_t ctx; |
| |
| fd = drm_open_driver(DRIVER_INTEL); |
| |
| memset(&gem_exec, 0, sizeof(gem_exec)); |
| gem_exec.handle = batch(fd); |
| |
| memset(&execbuf, 0, sizeof(execbuf)); |
| execbuf.buffers_ptr = (uintptr_t)&gem_exec; |
| execbuf.buffer_count = 1; |
| execbuf.flags = ring; |
| execbuf.flags |= LOCAL_I915_EXEC_HANDLE_LUT; |
| execbuf.flags |= LOCAL_I915_EXEC_NO_RELOC; |
| execbuf.rsvd1 = __gem_context_create(fd); |
| if (execbuf.rsvd1 == 0) |
| return 77; |
| |
| if (__gem_execbuf(fd, &execbuf)) { |
| execbuf.flags = ring; |
| if (__gem_execbuf(fd, &execbuf)) |
| return 77; |
| } |
| |
| ctx = gem_context_create(fd); |
| |
| for (count = 1; count <= 1<<16; count <<= 1) { |
| igt_stats_t stats; |
| int n; |
| |
| igt_stats_init_with_size(&stats, reps); |
| |
| for (n = 0; n < reps; n++) { |
| struct timespec start, end; |
| int loops = count; |
| sleep(1); /* wait for the hw to go back to sleep */ |
| clock_gettime(CLOCK_MONOTONIC, &start); |
| while (loops--) { |
| uint32_t tmp; |
| switch (mode) { |
| case CREATE: |
| ctx = execbuf.rsvd1; |
| execbuf.rsvd1 = gem_context_create(fd); |
| break; |
| |
| case SWITCH: |
| tmp = execbuf.rsvd1; |
| execbuf.rsvd1 = ctx; |
| ctx = tmp; |
| break; |
| case NOP: |
| break; |
| } |
| do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf); |
| if (mode == CREATE) |
| gem_context_destroy(fd, ctx); |
| } |
| gem_sync(fd, gem_exec.handle); |
| clock_gettime(CLOCK_MONOTONIC, &end); |
| igt_stats_push(&stats, elapsed(&start, &end, count)); |
| } |
| |
| printf("%7.3f\n", igt_stats_get_trimean(&stats)/1000); |
| igt_stats_fini(&stats); |
| } |
| return 0; |
| } |
| |
| int main(int argc, char **argv) |
| { |
| unsigned ring = I915_EXEC_RENDER; |
| enum mode mode = NOP; |
| int reps = 13; |
| int c; |
| |
| while ((c = getopt (argc, argv, "e:r:b:")) != -1) { |
| switch (c) { |
| case 'e': |
| if (strcmp(optarg, "rcs") == 0) |
| ring = I915_EXEC_RENDER; |
| else if (strcmp(optarg, "vcs") == 0) |
| ring = I915_EXEC_BSD; |
| else if (strcmp(optarg, "bcs") == 0) |
| ring = I915_EXEC_BLT; |
| else if (strcmp(optarg, "vecs") == 0) |
| ring = I915_EXEC_VEBOX; |
| else |
| ring = atoi(optarg); |
| break; |
| |
| case 'b': |
| if (strcmp(optarg, "create") == 0) |
| mode = CREATE; |
| else if (strcmp(optarg, "switch") == 0) |
| mode = SWITCH; |
| else if (strcmp(optarg, "nop") == 0) |
| mode = NOP; |
| else |
| abort(); |
| break; |
| |
| case 'r': |
| reps = atoi(optarg); |
| if (reps < 1) |
| reps = 1; |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| return loop(ring, reps, mode); |
| } |