[igt-dev] [PATCH i-g-t v10] igt/tests: kms_plane_stress: Add plane stress test

Stanislav Lisovskiy
2019-08-19T14:19:11Z

This test attempts to utilize all connected
outputs at the same time, using maximum possible
resolution and amount of planes, to check whether
we are hiting any kind of bandwidth, watermark or
other limitations.

v2: Added cpu and gpu load threads, which consume
additional bandwidth.

v3: Removed binary picture file, using pattern fb
instead.

v4: Moved FB creation/removal to better place.

v5: Fixed rebase conflict and changed "fb->tiling"
to "fb->modifier".

v6: Removed unnecessary new macro for iterating on
pipes. Taken into use igt_gettime instead of
clock_gettime.

v7: Put fb reinit into igt_fixture to avoid problems.
Move stress function under igt_subtest. Release planes,
remove redundant commit, assert if no planes can be used.

v8: - Add blitting also, to have more fun
- Now using separate framebuffer per each plane.
- Fixed magic number for bpp value(now based on format)
- Some optimizations, like not applying same mode if it
hasn't change, also don't do highest mode search on
each iteration, just calculate once and use it.
- Some code refactoring: extracted some lengthy code
to separate functions.
- Fixed wrong index for cursor FB(cursor FB is one per pipe)

v9:
- More helper functions(start/stop threads, test init)
- Now doing GPU work in pthreads also
- Do GPU work in a separate framebuffer(not displayed)

v10:
- Fix issue in main testing cycle, code refactoring

Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
---
lib/gpu_cmds.c | 4 +-
tests/Makefile.sources | 1 +
tests/kms_plane_stress.c | 887 +++++++++++++++++++++++++++++++++++++++
tests/meson.build | 1 +
4 files changed, 891 insertions(+), 2 deletions(-)
create mode 100644 tests/kms_plane_stress.c

diff --git a/lib/gpu_cmds.c b/lib/gpu_cmds.c
index 8d270ee8..48ddfa0c 100644
--- a/lib/gpu_cmds.c
+++ b/lib/gpu_cmds.c
@@ -681,12 +681,12 @@ gen8_emit_gpgpu_walk(struct intel_batchbuffer *batch,
0); /* width:1 */

/* thread group X */
- OUT_BATCH(0);
+ OUT_BATCH(x);
OUT_BATCH(0);
OUT_BATCH(x_dim);

/* thread group Y */
- OUT_BATCH(0);
+ OUT_BATCH(y);
OUT_BATCH(0);
OUT_BATCH(y_dim);

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 250dbd33..33ae75e0 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -63,6 +63,7 @@ TESTS_progs = \
kms_plane_lowres \
kms_plane_multiple \
kms_plane_scaling \
+ kms_plane_stress \
kms_prop_blob \
kms_properties \
kms_psr \
diff --git a/tests/kms_plane_stress.c b/tests/kms_plane_stress.c
new file mode 100644
index 00000000..23b3f96f
--- /dev/null
+++ b/tests/kms_plane_stress.c
@@ -0,0 +1,887 @@
+/*
+ * Copyright © 2019 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.
+ */
+
+#include "igt.h"
+#include "igt_rand.h"
+#include "gpgpu_fill.h"
+#include "drmtest.h"
+#include "sw_sync.h"
+#include <errno.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <poll.h>
+#include <pthread.h>
+#include <semaphore.h>
+
+#ifndef DRM_CAP_CURSOR_WIDTH
+#define DRM_CAP_CURSOR_WIDTH 0x8
+#endif
+#ifndef DRM_CAP_CURSOR_HEIGHT
+#define DRM_CAP_CURSOR_HEIGHT 0x9
+#endif
+
+
+drmModeModeInfo uhd_mode_60hz = {
+ .name = "3840x2160@60hz",
+ .vrefresh = 60,
+ .clock = 142667*2,
+ .hdisplay = 3840,
+ .hsync_start = 1936*2,
+ .hsync_end = 1952*2,
+ .htotal = 2104*2,
+ .vdisplay = 2160,
+ .vsync_start = 1083*2,
+ .vsync_end = 1097*2,
+ .vtotal = 1128*2,
+ .flags = 0xa,
+};
+
+#define N_FORMATS 3
+static const uint32_t formats[N_FORMATS] = {
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_XRGB2101010,
+};
+
+#define N_TILING_METHODS 3
+static const uint64_t tilings[N_TILING_METHODS] = {
+ DRM_FORMAT_MOD_LINEAR,
+ I915_FORMAT_MOD_X_TILED,
+ I915_FORMAT_MOD_Y_TILED,
+};
+
+static const char *format_str(int format_index)
+{
+ switch (formats[format_index]) {
+ case DRM_FORMAT_RGB565:
+ return "rgb565";
+ case DRM_FORMAT_XRGB8888:
+ return "xrgb8888";
+ case DRM_FORMAT_XRGB2101010:
+ return "xrgb2101010";
+ default:
+ igt_assert(false);
+ }
+}
+
+static const char *tiling_str(int tiling_index)
+{
+ switch (tilings[tiling_index]) {
+ case DRM_FORMAT_MOD_LINEAR:
+ return "untiled";
+ case I915_FORMAT_MOD_X_TILED:
+ return "xtiled";
+ case I915_FORMAT_MOD_Y_TILED:
+ return "ytiled";
+ default:
+ igt_assert(false);
+ }
+}
+
+
+#define MAX_CORES 8
+#define MAX_PLANES 16
+
+struct data;
+
+struct thread_context {
+ struct data *data;
+ int id;
+ void *buf1;
+ void *buf2;
+};
+
+struct rect {
+ int x;
+ int y;
+ int w;
+ int h;
+};
+
+struct gpu_context {
+ struct data *data;
+ int pipe;
+ int color;
+ struct igt_fb *fb_ptr;
+ struct rect blt_rect;
+ struct intel_batchbuffer *batch;
+};
+
+enum {
+ RUNNING,
+ STOPPED,
+ PAUSED,
+} thread_state;
+
+struct data {
+ int drm_fd;
+ igt_display_t display;
+ int num_planes[IGT_MAX_PIPES];
+ uint32_t format;
+ uint64_t modifier;
+ uint32_t devid;
+ drm_intel_bufmgr *bufmgr;
+ drmModeModeInfo *last_mode[IGT_MAX_PIPES];
+ struct igt_fb fb[IGT_MAX_PIPES * MAX_PLANES];
+ struct igt_fb cursor_fb[IGT_MAX_PIPES];
+ pthread_t cpu_thread[MAX_CORES];
+ pthread_t gpu_thread[IGT_MAX_PIPES];
+ bool cpu_thread_stop[MAX_CORES];
+ int gpu_thread_state[IGT_MAX_PIPES];
+ sem_t gpu_thread_pause_ack[IGT_MAX_PIPES];
+ struct thread_context cpu_context[MAX_CORES];
+ struct gpu_context gpu_context[IGT_MAX_PIPES];
+ drmModeModeInfo *highest_mode[IGT_MAX_PIPES];
+ drmModeConnectorPtr connectors[IGT_MAX_PIPES];
+ drmModeRes *mode_resources;
+ int number_of_cores;
+};
+
+
+static void pause_gpu_threads(struct data *data);
+
+static void resume_gpu_threads(struct data *data);
+
+static void stop_gpu_threads(struct data *data);
+
+static void start_gpu_threads(struct data *data);
+
+struct base_crc {
+ bool set;
+ igt_crc_t crc;
+};
+
+igt_pipe_crc_t *pipe_crc;
+
+#define BUF_SIZE 128*1024*1024
+
+static void *cpu_load(void *d)
+{
+ char *buf1, *buf2;
+ struct thread_context *context = (struct thread_context *)d;
+ struct data *data = context->data;
+
+ buf1 = context->buf1;
+ buf2 = context->buf2;
+
+ data->cpu_thread_stop[context->id] = false;
+
+ igt_info("CPU thread cpu id %d start\n", context->id);
+
+ /* Just to make CPU busy... */
+ while(!data->cpu_thread_stop[context->id]) {
+ memcpy(buf1, buf2, BUF_SIZE);
+ memcpy(buf2, buf1, BUF_SIZE);
+ }
+
+ igt_info("CPU thread cpu id %d stop\n", context->id);
+
+ return NULL;
+}
+
+
+static void scratch_buf_init(struct igt_buf *buf,
+ drm_intel_bo *bo, int width, int height, int stride, int tiling, int bpp)
+{
+ buf->bo = bo;
+ buf->stride = stride;
+ buf->tiling = tiling;
+ buf->size = width * height * bpp / 8;
+ buf->bpp = bpp;
+}
+
+static void *gpu_load(void *ptr)
+{
+ struct gpu_context *context = (struct gpu_context *)ptr;
+ struct intel_batchbuffer *batch = NULL;
+ struct igt_buf dst;
+ struct data *data = context->data;
+ int pipe = context->pipe;
+ igt_fillfunc_t gpgpu_fill = NULL;
+ drm_intel_bo *bo = NULL;
+ struct igt_fb fb, *fb_ptr = NULL, *last_fb_ptr = NULL;
+ int rect_divisor;
+ int rect_width;
+ int rect_height;
+ int frame_width;
+ int frame_height;
+ int bytes_per_pixel;
+ drmModeModeInfo *mode;
+ int frame = 0;
+ int x, y;
+ int last_state;
+
+ gpgpu_fill = igt_get_gpgpu_fillfunc(data->devid);
+
+ igt_require_f(gpgpu_fill,
+ "no gpgpu-fill function\n");
+
+ batch = context->batch;
+ igt_assert(batch);
+
+ mode = data->highest_mode[pipe];
+ igt_assert(mode);
+
+ igt_create_color_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
+ data->format,
+ data->modifier,
+ 0.0, 1.0, 0.0, &fb);
+
+ igt_info("GPU thread pipe %d start\n", pipe);
+
+ last_state = RUNNING;
+
+ while (data->gpu_thread_state[pipe] != STOPPED) {
+ if (last_state != data->gpu_thread_state[pipe]) {
+ last_state = data->gpu_thread_state[pipe];
+ sem_post(&data->gpu_thread_pause_ack[pipe]);
+ }
+ if (data->gpu_thread_state[pipe] == PAUSED)
+ continue;
+
+ if (!context->fb_ptr) {
+ fb_ptr = &fb;
+ }
+ else {
+ fb_ptr = context->fb_ptr;
+ }
+
+ if (last_fb_ptr != fb_ptr) {
+ igt_info("GPU thread pipe %d: Change from FB %x to FB %x\n", pipe, last_fb_ptr, fb_ptr);
+ frame_width = fb_ptr->width;
+ frame_height = fb_ptr->height;
+ bytes_per_pixel = fb_ptr->plane_bpp[0] / 8;
+ bo = gem_handle_to_libdrm_bo(data->bufmgr, data->drm_fd, "", fb_ptr->gem_handle);
+ igt_assert(bo);
+
+ scratch_buf_init(&dst, bo, frame_width, frame_height, fb_ptr->strides[0], fb_ptr->modifier, fb_ptr->plane_bpp[0]);
+ }
+ last_fb_ptr = fb_ptr;
+
+ /* divide at least by 2 and up to 8 */
+ rect_divisor = 1 << (hars_petruska_f54_1_random_unsafe_max(3) + 1);
+
+ rect_width = frame_width / rect_divisor;
+ rect_height = frame_height / rect_divisor;
+
+ /* Fill the framebuffer using shader */
+ x = 0;
+ y = frame_height / 2;
+
+ gpgpu_fill(batch,
+ &dst, x, y, (frame_width * bytes_per_pixel), frame_height,
+ context->color);
+
+ context->blt_rect.x = x + (context->blt_rect.x + rect_width) % (frame_width - rect_width);
+ context->blt_rect.y = y + (context->blt_rect.y + rect_height) % (frame_height - rect_height);
+
+ /* Blit random sized and positioned rectangle */
+
+ gpgpu_fill(batch,
+ &dst, context->blt_rect.x, context->blt_rect.y, ((context->blt_rect.x + rect_width) * bytes_per_pixel), context->blt_rect.y + rect_height,
+ context->color + 0x80);
+
+ context->color += 4;
+
+ frame++;
+ }
+
+ drm_intel_bo_unreference(bo);
+
+ igt_remove_fb(data->display.drm_fd, &fb);
+
+ igt_info("GPU thread pipe %d stop. Frames rendered: %d\n", pipe, frame);
+
+ return NULL;
+}
+
+static inline uint32_t pipe_select(enum pipe pipe)
+{
+ if (pipe > 1)
+ return pipe << DRM_VBLANK_HIGH_CRTC_SHIFT;
+ else if (pipe > 0)
+ return DRM_VBLANK_SECONDARY;
+ else
+ return 0;
+}
+
+static unsigned get_vblank(int fd, enum pipe pipe, unsigned flags)
+{
+ union drm_wait_vblank vbl;
+
+ memset(&vbl, 0, sizeof(vbl));
+ vbl.request.type = DRM_VBLANK_RELATIVE | pipe_select(pipe) | flags;
+ if (drmIoctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl))
+ return 0;
+
+ return vbl.reply.sequence;
+}
+
+
+static int plane_stress(struct data *data, igt_output_t *output, enum pipe pipe, drmModeModeInfo *mode)
+{
+ igt_plane_t *plane;
+ int i;
+ int ret;
+ int last_plane;
+ bool new_mode = false;
+ uint64_t cursor_width, cursor_height;
+
+ do_or_die(drmGetCap(data->drm_fd, DRM_CAP_CURSOR_WIDTH, &cursor_width));
+ do_or_die(drmGetCap(data->drm_fd, DRM_CAP_CURSOR_HEIGHT, &cursor_height));
+
+ if (data->last_mode[pipe] != mode) {
+ igt_output_override_mode(output, mode);
+ igt_output_set_pipe(output, pipe);
+
+ ret = igt_display_try_commit_atomic(&data->display,
+ DRM_MODE_ATOMIC_TEST_ONLY | DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
+ if (ret) {
+ igt_warn("Could not commit mode: \n");
+ kmstest_dump_mode(mode);
+ return ret;
+ }
+
+ igt_display_commit2(&data->display, COMMIT_ATOMIC);
+ data->last_mode[pipe] = mode;
+ new_mode = true;
+ }
+
+ /*
+ * Looks like we can't have planes on that pipe at all
+ */
+ if (!data->num_planes[pipe])
+ return 0;
+
+ mode = igt_output_get_mode(output);
+
+ if (new_mode) {
+ i = 0;
+ for_each_plane_on_pipe(&data->display, pipe, plane) {
+ int plane_width, plane_height;
+ if (plane->type == DRM_PLANE_TYPE_CURSOR) {
+ igt_plane_set_fb(plane, &data->cursor_fb[pipe]);
+ igt_fb_set_size(&data->cursor_fb[pipe], plane, cursor_width, cursor_height);
+ igt_plane_set_size(plane, cursor_width, cursor_height);
+ plane_width = cursor_width;
+ plane_height = cursor_height;
+ } else {
+ igt_plane_set_fb(plane, &data->fb[pipe * MAX_PLANES + i]);
+ igt_plane_set_position(plane, 0, 0);
+ igt_fb_set_size(&data->fb[pipe * MAX_PLANES + i], plane, mode->hdisplay, mode->vdisplay);
+ igt_plane_set_size(plane, mode->hdisplay, mode->vdisplay);
+ plane_width = mode->hdisplay;
+ plane_height = mode->vdisplay;
+ }
+
+ ret = igt_display_try_commit_atomic(&data->display, DRM_MODE_ATOMIC_TEST_ONLY | DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
+ while (ret) {
+ if (plane_width <= cursor_width || plane_height <= cursor_height)
+ break;
+ plane_width /= 2;
+ plane_height /= 2;
+ igt_plane_set_size(plane, plane_width, plane_height);
+ igt_info("Reduced plane %d size to %dx%d\n", plane->index, plane_width, plane_height);
+ ret = igt_display_try_commit_atomic(&data->display, DRM_MODE_ATOMIC_TEST_ONLY | DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
+ }
+ if (ret) {
+ igt_info("Plane %d pipe %d try commit failed, exiting\n", i, pipe);
+ data->num_planes[pipe] = i;
+ /*
+ * We have now determined max amount of full sized planes, we will just
+ * keep it in mind and be smarter next time. Also lets remove unneeded fbs.
+ * Don't destroy cursor_fb as will take care about it at the end.
+ */
+ igt_plane_set_fb(plane, NULL);
+ while (i < MAX_PLANES) {
+ igt_remove_fb(data->display.drm_fd, &data->fb[pipe * MAX_PLANES + i]);
+ data->fb[pipe * MAX_PLANES + i].fb_id = 0;
+ i++;
+ }
+ i = data->num_planes[pipe];
+ }
+ if (++i >= data->num_planes[pipe])
+ break;
+ }
+ igt_display_commit2(&data->display, COMMIT_ATOMIC);
+ }
+
+ last_plane = data->num_planes[pipe] - 1;
+ if (last_plane >= 7)
+ last_plane = 6;
+
+ if (data->gpu_context[pipe].fb_ptr != &data->fb[pipe * MAX_PLANES + last_plane]) {
+ data->gpu_context[pipe].fb_ptr = &data->fb[pipe * MAX_PLANES + last_plane];
+ igt_info("Plane stress for pipe %d: Set context fb ptr %x\n", pipe, data->gpu_context[pipe].fb_ptr);
+ }
+
+ return 0;
+}
+
+
+static drmModeModeInfo * find_highest_mode(drmModeConnector *connector)
+{
+ drmModeModeInfo *highest_mode = NULL;
+ int j;
+
+ for (j = 0; j < connector->count_modes; j++) {
+ if (!highest_mode) {
+ highest_mode = &connector->modes[j];
+ }
+ else if (connector->modes[j].vdisplay && connector->modes[j].hdisplay) {
+ if (highest_mode->hdisplay < connector->modes[j].hdisplay)
+ highest_mode = &connector->modes[j];
+ }
+ }
+
+ return highest_mode;
+}
+
+typedef drmModeConnector * drmModeConnectorPtr;
+
+static void fill_connector_to_pipe_array(struct data *data, drmModeRes *mode_resources, drmModeConnectorPtr *connectors)
+{
+ int pipe = 0, crtc_id;
+ igt_output_t *output;
+ int i;
+
+ memset(connectors, 0, sizeof(drmModeConnectorPtr) * IGT_MAX_PIPES);
+
+ for_each_connected_output(&data->display, output) {
+ crtc_id = 0;
+ for (i = 0; i < mode_resources->count_connectors; i++) {
+ drmModeConnector *connector;
+
+ connector = drmModeGetConnectorCurrent(data->drm_fd,
+ mode_resources->connectors[i]);
+
+ if (!connector) {
+ igt_warn("could not get connector %i: %s\n",
+ mode_resources->connectors[i], strerror(errno));
+ continue;
+ }
+
+ if (connector->connection == DRM_MODE_CONNECTED) {
+ if (crtc_id == pipe) {
+ connectors[pipe] = (drmModeConnectorPtr)connector;
+ }
+ crtc_id++;
+ }
+ else
+ drmModeFreeConnector(connector);
+ }
+ if ((++pipe) == IGT_MAX_PIPES)
+ break;
+ }
+}
+
+static void release_connectors(drmModeConnectorPtr *connectors)
+{
+ int i;
+ for (i = 0; i < IGT_MAX_PIPES; i++) {
+ if (connectors[i])
+ drmModeFreeConnector(connectors[i]);
+ }
+}
+
+#define MIN_DURATION_SEC 5.00
+#define MIN_ITERATIONS 20
+
+static void stress(struct data *data)
+{
+ struct timespec start, end;
+ igt_output_t *output;
+ int ret;
+ int pipe;
+ int iterations = 0;
+ bool need_continue;
+ igt_crc_t crc, crc2;
+
+ igt_gettime(&start);
+
+ do {
+ /*
+ * Increment pipe only for connected outputs,
+ * for each connected output we should assign a
+ * different pipe.
+ */
+ pipe = 0;
+ for_each_connected_output(&data->display, output) {
+ igt_assert_f(data->display.pipes[pipe].n_planes < MAX_PLANES,
+ "Currently we don't support more than %d planes!", MAX_PLANES);
+
+ pipe_crc = igt_pipe_crc_new(data->drm_fd, pipe,
+ INTEL_PIPE_CRC_SOURCE_AUTO);
+
+ ret = plane_stress(data, output, pipe, data->highest_mode[pipe]);
+
+ if (!((int)igt_time_elapsed(&start, &end) % ((int)MIN_DURATION_SEC/4))) {
+ pause_gpu_threads(data);
+ get_vblank(data->display.drm_fd, pipe, DRM_VBLANK_NEXTONMISS);
+
+ igt_pipe_crc_collect_crc(pipe_crc, &crc);
+
+ get_vblank(data->display.drm_fd, pipe, DRM_VBLANK_NEXTONMISS);
+
+ igt_pipe_crc_collect_crc(pipe_crc, &crc2);
+ resume_gpu_threads(data);
+ igt_assert_crc_equal(&crc, &crc2);
+ }
+
+ igt_pipe_crc_free(pipe_crc);
+
+ if (ret || (++pipe == IGT_MAX_PIPES))
+ break;
+ }
+ igt_gettime(&end);
+ iterations++;
+ need_continue = igt_time_elapsed(&start, &end) < MIN_DURATION_SEC;
+ } while ((need_continue || iterations < MIN_ITERATIONS));
+
+
+}
+
+static void start_gpu_threads(struct data *data)
+{
+ int i = 0;
+ igt_output_t *output;
+
+ if (!data->devid) {
+ data->devid = intel_get_drm_devid(data->drm_fd);
+ igt_require_gem(data->drm_fd);
+
+ data->bufmgr = drm_intel_bufmgr_gem_init(data->drm_fd, 4096);
+ igt_assert(data->bufmgr);
+ }
+
+ for_each_connected_output(&data->display, output) {
+ data->gpu_context[i].data = data;
+ data->gpu_context[i].pipe = i;
+ data->gpu_context[i].fb_ptr = NULL;
+ data->gpu_context[i].blt_rect.x = 0;
+ data->gpu_context[i].blt_rect.y = 0;
+ data->gpu_context[i].blt_rect.w = 0;
+ data->gpu_context[i].blt_rect.h = 0;
+ data->gpu_thread_state[i] = RUNNING;
+ igt_info("Starting GPU thread %d\n", i);
+ data->gpu_context[i].batch = intel_batchbuffer_alloc(data->bufmgr, data->devid);
+ pthread_create(&data->gpu_thread[i], NULL, gpu_load, (void*)&data->gpu_context[i]);
+ if (++i == IGT_MAX_PIPES)
+ break;
+ }
+}
+
+
+static void pause_gpu_threads(struct data *data)
+{
+ int i = 0;
+ igt_output_t *output;
+ for_each_connected_output(&data->display, output) {
+ if (data->gpu_thread_state[i] != RUNNING) {
+ ++i;
+ continue;
+ }
+ igt_info("Pausing GPU thread %d\n", i);
+ data->gpu_thread_state[i] = PAUSED;
+ sem_wait(&data->gpu_thread_pause_ack[i]);
+ igt_info("GPU thread %d paused\n", i);
+ if (++i == IGT_MAX_PIPES)
+ break;
+ }
+}
+
+static void resume_gpu_threads(struct data *data)
+{
+ int i = 0;
+ igt_output_t *output;
+ for_each_connected_output(&data->display, output) {
+ if (data->gpu_thread_state[i] != PAUSED) {
+ ++i;
+ continue;
+ }
+ data->gpu_thread_state[i] = RUNNING;
+ igt_info("Resuming GPU thread %d\n", i);
+ sem_wait(&data->gpu_thread_pause_ack[i]);
+ igt_info("GPU thread %d resumed\n", i);
+ if (++i == IGT_MAX_PIPES)
+ break;
+ }
+}
+
+
+static void stop_gpu_threads(struct data *data)
+{
+ int i = 0;
+ igt_output_t *output;
+ for_each_connected_output(&data->display, output) {
+ data->gpu_thread_state[i] = STOPPED;
+ igt_info("Stoping GPU thread %d\n", i);
+ pthread_join(data->gpu_thread[i], NULL);
+ data->gpu_context[i].fb_ptr = NULL;
+ intel_batchbuffer_free(data->gpu_context[i].batch);
+ if (++i == IGT_MAX_PIPES)
+ break;
+ }
+}
+
+static void start_cpu_threads(struct data *data)
+{
+ int i;
+ for (i = 0; i < data->number_of_cores;i++) {
+ data->cpu_context[i].buf1 = malloc(BUF_SIZE);
+ data->cpu_context[i].buf2 = malloc(BUF_SIZE);
+ data->cpu_context[i].id = i;
+ data->cpu_context[i].data = data;
+ pthread_create(&data->cpu_thread[i], NULL, cpu_load, (void*)&data->cpu_context[i]);
+ }
+}
+
+static void stop_cpu_threads(struct data *data)
+{
+ int i;
+ for (i = 0; i < data->number_of_cores;i++) {
+ data->cpu_thread_stop[i] = true;
+ pthread_join(data->cpu_thread[i], NULL);
+ free(data->cpu_context[i].buf1);
+ free(data->cpu_context[i].buf2);
+ }
+}
+
+static void create_framebuffers(struct data *data)
+{
+ int i, j;
+ uint64_t cursor_width, cursor_height;
+ igt_output_t *output;
+
+ do_or_die(drmGetCap(data->drm_fd, DRM_CAP_CURSOR_WIDTH, &cursor_width));
+ do_or_die(drmGetCap(data->drm_fd, DRM_CAP_CURSOR_HEIGHT, &cursor_height));
+
+ i = 0;
+ for_each_connected_output(&data->display, output) {
+ if (!data->cursor_fb[i].fb_id) {
+ igt_create_color_fb(data->drm_fd, cursor_width, cursor_height,
+ DRM_FORMAT_ARGB8888,
+ LOCAL_DRM_FORMAT_MOD_NONE,
+ 1.0,0.0,0.0,
+ &data->cursor_fb[i]);
+ }
+ for (j = 0; j < data->num_planes[i];j++) {
+ if (!data->fb[i * MAX_PLANES + j].fb_id) {
+ igt_create_color_pattern_fb(data->drm_fd,
+ data->highest_mode[i]->hdisplay,
+ data->highest_mode[i]->vdisplay,
+ data->format,
+ data->modifier,
+ 0.0, 1.0, 0.0, &data->fb[i * MAX_PLANES + j]);
+ }
+ }
+ if (++i == IGT_MAX_PIPES)
+ break;
+ }
+}
+
+static void destroy_framebuffers(struct data *data)
+{
+ int i, j;
+ igt_output_t *output;
+
+ i = 0;
+ for_each_connected_output(&data->display, output) {
+ for (j = 0;j < MAX_PLANES; j++) {
+ if (data->fb[i * MAX_PLANES + j].fb_id) {
+ igt_plane_set_fb(&data->display.pipes[i].planes[j], NULL);
+ igt_remove_fb(data->display.drm_fd, &data->fb[i * MAX_PLANES + j]);
+ data->fb[i * MAX_PLANES + j].fb_id = 0;
+ }
+ }
+ if (data->cursor_fb[i].fb_id) {
+ igt_remove_fb(data->display.drm_fd, &data->cursor_fb[i]);
+ data->cursor_fb[i].fb_id = 0;
+ }
+ if (++i == IGT_MAX_PIPES)
+ break;
+ }
+}
+
+static void prepare_test(struct data *data, bool override, bool cpu, bool gpu)
+{
+ int i,j;
+ igt_output_t *output;
+
+ data->number_of_cores = min(sysconf(_SC_NPROCESSORS_ONLN), MAX_CORES);
+
+ for (i = 0; i < IGT_MAX_PIPES; i++) {
+ for (j = 0;j < MAX_PLANES; j++)
+ data->fb[i * MAX_PLANES + j].fb_id = 0;
+ data->cursor_fb[i].fb_id = 0;
+ data->num_planes[i] = -1;
+ data->last_mode[i] = NULL;
+ sem_init(&data->gpu_thread_pause_ack[i], 0, 0);
+ }
+ if (cpu) {
+ start_cpu_threads(data);
+ }
+
+ data->mode_resources = drmModeGetResources(data->drm_fd);
+ if (!data->mode_resources) {
+ igt_warn("drmModeGetResources failed: %s\n", strerror(errno));
+ return;
+ }
+
+ memset(data->highest_mode, 0, sizeof(drmModeModeInfo *) * IGT_MAX_PIPES);
+
+ fill_connector_to_pipe_array(data, data->mode_resources, data->connectors);
+
+ i = 0;
+ for_each_connected_output(&data->display, output) {
+ drmModeConnector *connector = (drmModeConnector *)data->connectors[i];
+ if (!connector)
+ continue;
+ if (!data->highest_mode[i]) {
+ if (!override && connector->count_modes) {
+ data->highest_mode[i] = find_highest_mode(connector);
+ }
+ else
+ data->highest_mode[i] = &uhd_mode_60hz;
+ }
+ if (++i == IGT_MAX_PIPES)
+ break;
+ }
+
+ /*
+ * Until we figure out maximum amount of planes,
+ * use the one declared by kernel.
+ */
+ for (i = 0; i < IGT_MAX_PIPES; i++) {
+ if (data->num_planes[i] == -1)
+ data->num_planes[i] = data->display.pipes[i].n_planes;
+ }
+ create_framebuffers(data);
+ if (gpu) {
+ start_gpu_threads(data);
+ }
+}
+
+static void finish_test(struct data *data, bool override, bool cpu, bool gpu)
+{
+ int i;
+
+ if (gpu) {
+ stop_gpu_threads(data);
+ }
+ /*
+ * As we change tiling/format we need a new FB
+ */
+ destroy_framebuffers(data);
+ for (i = 0; i < IGT_MAX_PIPES; i++) {
+ data->num_planes[i] = -1;
+ data->last_mode[i] = NULL;
+ }
+ if (cpu) {
+ stop_cpu_threads(data);
+ }
+ release_connectors(data->connectors);
+
+ drmModeFreeResources(data->mode_resources);
+}
+
+struct data data = {
+ .format = DRM_FORMAT_XRGB8888,
+ .modifier = DRM_FORMAT_MOD_LINEAR,
+ .devid = 0,
+};
+
+enum {
+ PLANES_ONLY = 0,
+ CPU_LOAD,
+ GPU_LOAD,
+ MODE_OVERRIDE,
+} test_bits;
+
+static void set_params(uint8_t bits, bool *mode_override, bool *cpu_load, bool *gpu_load)
+{
+ *cpu_load = (bits & (1 << CPU_LOAD)) != 0 ? true : false;
+ *gpu_load = (bits & (1 << GPU_LOAD)) != 0 ? true : false;
+ *mode_override = (bits & (1 << MODE_OVERRIDE)) != 0 ? true : false;
+}
+
+
+igt_main
+{
+ bool mode_override;
+ bool cpu_load;
+ bool gpu_load;
+ uint8_t format_idx = 0, tiling_idx = 0;
+ uint64_t max_combinations = 1 << (MODE_OVERRIDE + 1);
+ int8_t test_comb = max_combinations - 1;
+
+ igt_fixture {
+ data.drm_fd = data.display.drm_fd = drm_open_driver_master(DRIVER_ANY);
+
+ kmstest_set_vt_graphics_mode();
+
+ igt_display_require(&data.display, data.display.drm_fd);
+ igt_require(data.display.is_atomic);
+ igt_display_require_output(&data.display);
+ }
+
+ do {
+ set_params(test_comb, &mode_override, &cpu_load, &gpu_load);
+ /*
+ * Do all combinations of mode_override, cpu_load, gpu_load and
+ * all format and tiling for each of those.
+ */
+ for (format_idx = 0; format_idx < N_FORMATS; format_idx++)
+ for (tiling_idx = 0; tiling_idx < N_TILING_METHODS; tiling_idx++) {
+ data.format = formats[format_idx];
+ data.modifier = tilings[tiling_idx];
+
+ igt_fixture {
+ prepare_test(&data, mode_override, cpu_load, gpu_load);
+ }
+
+ igt_subtest_f("stress%s%s%s-%s-%s",
+ mode_override == false ? "" : "-mode-override",
+ cpu_load == false ? "" : "-cpu-load",
+ gpu_load == false ? "" : "-gpu-load",
+ format_str(format_idx),
+ tiling_str(tiling_idx)) {
+
+ stress(&data);
+
+ }
+
+ igt_fixture {
+ finish_test(&data, mode_override, cpu_load, gpu_load);
+ }
+ }
+ } while (--test_comb > 0 );
+
+ igt_fixture {
+
+ igt_display_fini(&data.display);
+ }
+}
\ No newline at end of file
diff --git a/tests/meson.build b/tests/meson.build
index 34a74025..6e42402c 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -48,6 +48,7 @@ test_progs = [
'kms_plane_lowres',
'kms_plane_multiple',
'kms_plane_scaling',
+ 'kms_plane_stress',
'kms_prop_blob',
'kms_properties',
'kms_psr',
--
2.17.1