| /* |
| * Copyright © 2015 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. |
| */ |
| |
| /** @file kms_vblank.c |
| * |
| * This is a test of performance of drmWaitVblank. |
| */ |
| |
| #include "igt.h" |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <fcntl.h> |
| #include <inttypes.h> |
| #include <errno.h> |
| #include <time.h> |
| #include <sys/stat.h> |
| #include <sys/time.h> |
| #include <sys/wait.h> |
| |
| #include <drm.h> |
| |
| #include "intel_bufmgr.h" |
| |
| IGT_TEST_DESCRIPTION("Test speed of WaitVblank."); |
| |
| typedef struct { |
| igt_display_t display; |
| struct igt_fb primary_fb; |
| igt_output_t *output; |
| enum pipe pipe; |
| uint8_t mode_busy:1; |
| } data_t; |
| |
| static double elapsed(const struct timespec *start, |
| const struct timespec *end, |
| int loop) |
| { |
| return (1e6*(end->tv_sec - start->tv_sec) + (end->tv_nsec - start->tv_nsec)/1000)/loop; |
| } |
| |
| static bool prepare_crtc(data_t *data, int fd, igt_output_t *output) |
| { |
| drmModeModeInfo *mode; |
| igt_display_t *display = &data->display; |
| igt_plane_t *primary; |
| |
| /* select the pipe we want to use */ |
| igt_output_set_pipe(output, data->pipe); |
| igt_display_commit(display); |
| |
| if (!output->valid) { |
| igt_output_set_pipe(output, PIPE_ANY); |
| igt_display_commit(display); |
| return false; |
| } |
| |
| /* create and set the primary plane fb */ |
| mode = igt_output_get_mode(output); |
| igt_create_color_fb(fd, mode->hdisplay, mode->vdisplay, |
| DRM_FORMAT_XRGB8888, |
| LOCAL_DRM_FORMAT_MOD_NONE, |
| 0.0, 0.0, 0.0, |
| &data->primary_fb); |
| |
| primary = igt_output_get_plane(output, IGT_PLANE_PRIMARY); |
| igt_plane_set_fb(primary, &data->primary_fb); |
| |
| igt_display_commit(display); |
| |
| igt_wait_for_vblank(fd, data->pipe); |
| |
| return true; |
| } |
| |
| static void cleanup_crtc(data_t *data, int fd, igt_output_t *output) |
| { |
| igt_display_t *display = &data->display; |
| igt_plane_t *primary; |
| |
| igt_remove_fb(fd, &data->primary_fb); |
| |
| primary = igt_output_get_plane(output, IGT_PLANE_PRIMARY); |
| igt_plane_set_fb(primary, NULL); |
| |
| igt_output_set_pipe(output, PIPE_ANY); |
| igt_display_commit(display); |
| } |
| |
| static void run_test(data_t *data, int fd, void (*testfunc)(data_t *, int)) |
| { |
| igt_display_t *display = &data->display; |
| igt_output_t *output; |
| enum pipe p; |
| unsigned int valid_tests = 0; |
| |
| for_each_connected_output(display, output) { |
| for_each_pipe(display, p) { |
| data->pipe = p; |
| |
| if (!prepare_crtc(data, fd, output)) |
| continue; |
| |
| valid_tests++; |
| |
| igt_info("Beginning %s on pipe %s, connector %s\n", |
| igt_subtest_name(), |
| kmstest_pipe_name(data->pipe), |
| igt_output_name(output)); |
| |
| testfunc(data, fd); |
| |
| igt_info("\n%s on pipe %s, connector %s: PASSED\n\n", |
| igt_subtest_name(), |
| kmstest_pipe_name(data->pipe), |
| igt_output_name(output)); |
| |
| /* cleanup what prepare_crtc() has done */ |
| cleanup_crtc(data, fd, output); |
| } |
| } |
| |
| igt_require_f(valid_tests, "no valid crtc/connector combinations found\n"); |
| } |
| |
| static void accuracy(data_t *data, int fd) |
| { |
| union drm_wait_vblank vbl; |
| unsigned long target; |
| uint32_t pipe_id_flag; |
| int n; |
| |
| memset(&vbl, 0, sizeof(vbl)); |
| pipe_id_flag = kmstest_get_vbl_flag(data->pipe); |
| |
| vbl.request.type = DRM_VBLANK_RELATIVE; |
| vbl.request.type |= pipe_id_flag; |
| vbl.request.sequence = 1; |
| do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl); |
| |
| target = vbl.reply.sequence + 60; |
| for (n = 0; n < 60; n++) { |
| vbl.request.type = DRM_VBLANK_RELATIVE; |
| vbl.request.type |= pipe_id_flag; |
| vbl.request.sequence = 1; |
| do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl); |
| |
| vbl.request.type = DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT; |
| vbl.request.type |= pipe_id_flag; |
| vbl.request.sequence = target; |
| do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl); |
| } |
| vbl.request.type = DRM_VBLANK_RELATIVE; |
| vbl.request.type |= pipe_id_flag; |
| vbl.request.sequence = 0; |
| do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl); |
| igt_assert_eq(vbl.reply.sequence, target); |
| |
| for (n = 0; n < 60; n++) { |
| struct drm_event_vblank ev; |
| igt_assert_eq(read(fd, &ev, sizeof(ev)), sizeof(ev)); |
| igt_assert_eq(ev.sequence, target); |
| } |
| } |
| |
| static void vblank_query(data_t *data, int fd) |
| { |
| union drm_wait_vblank vbl; |
| struct timespec start, end; |
| unsigned long sq, count = 0; |
| struct drm_event_vblank buf; |
| uint32_t pipe_id_flag; |
| |
| memset(&vbl, 0, sizeof(vbl)); |
| pipe_id_flag = kmstest_get_vbl_flag(data->pipe); |
| |
| if (data->mode_busy) { |
| vbl.request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT; |
| vbl.request.type |= pipe_id_flag; |
| vbl.request.sequence = 72; |
| do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl); |
| } |
| |
| vbl.request.type = DRM_VBLANK_RELATIVE; |
| vbl.request.type |= pipe_id_flag; |
| vbl.request.sequence = 0; |
| do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl); |
| |
| sq = vbl.reply.sequence; |
| |
| clock_gettime(CLOCK_MONOTONIC, &start); |
| do { |
| vbl.request.type = DRM_VBLANK_RELATIVE; |
| vbl.request.type |= pipe_id_flag; |
| vbl.request.sequence = 0; |
| do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl); |
| count++; |
| } while ((vbl.reply.sequence - sq) <= 60); |
| clock_gettime(CLOCK_MONOTONIC, &end); |
| |
| igt_info("Time to query current counter (%s): %7.3fµs\n", |
| data->mode_busy ? "busy" : "idle", elapsed(&start, &end, count)); |
| |
| if (data->mode_busy) |
| igt_assert_eq(read(fd, &buf, sizeof(buf)), sizeof(buf)); |
| } |
| |
| static void vblank_wait(data_t *data, int fd) |
| { |
| union drm_wait_vblank vbl; |
| struct timespec start, end; |
| unsigned long sq, count = 0; |
| struct drm_event_vblank buf; |
| uint32_t pipe_id_flag; |
| |
| memset(&vbl, 0, sizeof(vbl)); |
| pipe_id_flag = kmstest_get_vbl_flag(data->pipe); |
| |
| if (data->mode_busy) { |
| vbl.request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT; |
| vbl.request.type |= pipe_id_flag; |
| vbl.request.sequence = 72; |
| do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl); |
| } |
| |
| vbl.request.type = DRM_VBLANK_RELATIVE; |
| vbl.request.type |= pipe_id_flag; |
| vbl.request.sequence = 0; |
| do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl); |
| |
| sq = vbl.reply.sequence; |
| |
| clock_gettime(CLOCK_MONOTONIC, &start); |
| do { |
| vbl.request.type = DRM_VBLANK_RELATIVE; |
| vbl.request.type |= pipe_id_flag; |
| vbl.request.sequence = 1; |
| do_ioctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl); |
| count++; |
| } while ((vbl.reply.sequence - sq) <= 60); |
| clock_gettime(CLOCK_MONOTONIC, &end); |
| |
| igt_info("Time to wait for %ld/%d vblanks (%s): %7.3fµs\n", |
| count, (int)(vbl.reply.sequence - sq), |
| data->mode_busy ? "busy" : "idle", |
| elapsed(&start, &end, count)); |
| |
| if (data->mode_busy) |
| igt_assert_eq(read(fd, &buf, sizeof(buf)), sizeof(buf)); |
| } |
| |
| igt_main |
| { |
| int fd; |
| data_t data; |
| |
| igt_skip_on_simulation(); |
| |
| igt_fixture { |
| fd = drm_open_driver(DRIVER_ANY); |
| kmstest_set_vt_graphics_mode(); |
| igt_display_init(&data.display, fd); |
| } |
| |
| igt_subtest("accuracy") { |
| data.mode_busy = 0; |
| run_test(&data, fd, accuracy); |
| } |
| |
| igt_subtest("query-idle") { |
| data.mode_busy = 0; |
| run_test(&data, fd, vblank_query); |
| } |
| |
| igt_subtest("query-busy") { |
| data.mode_busy = 1; |
| run_test(&data, fd, vblank_query); |
| } |
| |
| igt_subtest("wait-idle") { |
| data.mode_busy = 0; |
| run_test(&data, fd, vblank_wait); |
| } |
| |
| igt_subtest("wait-busy") { |
| data.mode_busy = 1; |
| run_test(&data, fd, vblank_wait); |
| } |
| } |