[PATCH i-g-t v3 10/11] tests/kms_atomic_transition: add out_fences tests

Robert Foss
2017-01-31T02:00:13Z

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
---
lib/igt_kms.c | 35 ++++++----
tests/kms_atomic_transition.c | 148 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 169 insertions(+), 14 deletions(-)

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index f14496dd..523f3f57 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -53,6 +53,7 @@
#include "intel_chipset.h"
#include "igt_debugfs.h"
#include "igt_sysfs.h"
+#include "sw_sync.h"

/**
* SECTION:igt_kms
@@ -2479,6 +2480,21 @@ static int igt_atomic_commit(igt_display_t *display, uint32_t flags, void *user_
}

ret = drmModeAtomicCommit(display->drm_fd, req, flags, user_data);
+ if (!ret) {
+
+ for_each_pipe(display, pipe) {
+ igt_pipe_t *pipe_obj = &display->pipes[pipe];
+
+ if (pipe_obj->out_fence != -1)
+ continue;
+
+ igt_assert(pipe_obj->out_fence >= 0);
+ ret = sync_fence_wait(pipe_obj->out_fence, 1000);
+ igt_assert(ret == 0);
+ close(pipe_obj->out_fence);
+ }
+ }
+
drmModeAtomicFree(req);
return ret;

@@ -2972,6 +2988,11 @@ void igt_plane_set_rotation(igt_plane_t *plane, igt_rotation_t rotation)
plane->rotation_changed = true;
}

+void igt_pipe_request_out_fence(igt_pipe_t *pipe)
+{
+ pipe->out_fence_requested = true;
+}
+
void
igt_pipe_set_degamma_lut(igt_pipe_t *pipe, void *ptr, size_t length)
{
@@ -2994,20 +3015,6 @@ igt_pipe_set_gamma_lut(igt_pipe_t *pipe, void *ptr, size_t length)
}

/**
- * igt_pipe_set_out_fence_ptr:
- * @pipe: pipe pointer to which background color to be set
- * @fence_ptr: out fence pointer
- *
- * Sets the out fence pointer that will be passed to the kernel in
- * the atomic ioctl. When the kernel returns the out fence pointer
- * will contain the fd number of the out fence created by KMS.
- */
-void igt_pipe_set_out_fence_ptr(igt_pipe_t *pipe, int64_t *fence_ptr)
-{
- pipe->out_fence_ptr = fence_ptr;
-}
-
-/**
* igt_crtc_set_background:
* @pipe: pipe pointer to which background color to be set
* @background: background color value in BGR 16bpc
diff --git a/tests/kms_atomic_transition.c b/tests/kms_atomic_transition.c
index 72429759..eebb5d66 100644
--- a/tests/kms_atomic_transition.c
+++ b/tests/kms_atomic_transition.c
@@ -253,6 +253,93 @@ retry:
sprite_width, sprite_height, alpha);
}

+int *timeline;
+pthread_t *thread;
+int *seqno;
+
+static void prepare_fencing(igt_display_t *display, enum pipe pipe)
+{
+ igt_plane_t *plane;
+ int n_planes;
+
+ igt_require_sw_sync();
+
+ n_planes = display->pipes[pipe].n_planes;
+ timeline = calloc(sizeof(*timeline), n_planes);
+ igt_assert_f(timeline != NULL, "Failed to allocate memory for timelines\n");
+ thread = calloc(sizeof(*thread), n_planes);
+ igt_assert_f(thread != NULL, "Failed to allocate memory for thread\n");
+ seqno = calloc(sizeof(*seqno), n_planes);
+ igt_assert_f(seqno != NULL, "Failed to allocate memory for seqno\n");
+
+ for_each_plane_on_pipe(display, pipe, plane)
+ timeline[plane->index] = sw_sync_timeline_create();
+}
+
+static void unprepare_fencing(igt_display_t *display, enum pipe pipe)
+{
+ igt_plane_t *plane;
+
+ for_each_plane_on_pipe(display, pipe, plane)
+ close(timeline[plane->index]);
+
+ free(timeline);
+ free(thread);
+ free(seqno);
+}
+
+static void *fence_inc_thread(void *arg)
+{
+ int t = *((int *) arg);
+
+ pthread_detach(pthread_self());
+
+ usleep(5000);
+ sw_sync_timeline_inc(t, 1);
+ return NULL;
+}
+
+static void configure_fencing(igt_display_t *display, enum pipe pipe)
+{
+ igt_plane_t *plane;
+ int i, fd, ret;
+
+ for_each_plane_on_pipe(display, pipe, plane) {
+
+ if (!plane->fb)
+ continue;
+
+ i = plane->index;
+
+ seqno[i]++;
+ fd = sw_sync_timeline_create_fence(timeline[i], seqno[i]);
+ igt_plane_set_fence_fd(plane, fd);
+ ret = pthread_create(&thread[i], NULL, fence_inc_thread, &timeline[i]);
+ igt_assert_eq(ret, 0);
+ }
+}
+
+static void clear_fencing(igt_display_t *display, enum pipe pipe)
+{
+ igt_plane_t *plane;
+
+ for_each_plane_on_pipe(display, pipe, plane)
+ igt_plane_set_fence_fd(plane, -1);
+}
+
+static void atomic_commit(igt_display_t *display, enum pipe pipe, unsigned int flags, void *data, bool fencing)
+{
+ if (fencing) {
+ configure_fencing(display, pipe);
+ igt_pipe_request_out_fence(&display->pipes[pipe]);
+ }
+
+ igt_display_commit_atomic(display, flags, data);
+
+ if (fencing)
+ clear_fencing(display, pipe);
+}
+
/*
* 1. Set primary plane to a known fb.
* 2. Make sure getcrtc returns the correct fb id.
@@ -273,6 +360,7 @@ run_transition_test(igt_display_t *display, enum pipe pipe, igt_output_t *output
struct plane_parms parms[display->pipes[pipe].n_planes];
bool skip_test = false;
unsigned flags = DRM_MODE_PAGE_FLIP_EVENT;
+ int ret;

if (nonblocking)
flags |= DRM_MODE_ATOMIC_NONBLOCK;
@@ -307,11 +395,50 @@ run_transition_test(igt_display_t *display, enum pipe pipe, igt_output_t *output

setup_parms(display, pipe, mode, &argb_fb, &sprite_fb, parms);

+ /*
+ * In some configurations the tests may not run to completion with all
+ * sprite planes lit up at 4k resolution, try decreasing width/size of secondary
+ * planes to fix this
+ */
+ while (1) {
+ wm_setup_plane(display, pipe, iter_max - 1, parms);
+
+ if (fencing)
+ igt_pipe_set_out_fence_ptr(&display->pipes[pipe],
+ (int64_t *) &out_fence);
+ ret = igt_display_try_commit_atomic(display, DRM_MODE_ATOMIC_TEST_ONLY | DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
+
+ if (ret != -EINVAL || n_planes < 3)
+ break;
+
+ ret = 0;
+ for_each_plane_on_pipe(display, pipe, plane) {
+ i = plane->index;
+
+ if (plane->is_primary || plane->is_cursor)
+ continue;
+
+ if (parms[i].width <= 512)
+ continue;
+
+ parms[i].width /= 2;
+ ret = 1;
+ igt_info("Reducing sprite %i to %ux%u\n", i - 1, parms[i].width, parms[i].height);
+ break;
+ }
+
+ if (!ret)
+ igt_skip("Cannot run tests without proper size sprite planes\n");
+ }
+
for (i = 0; i < iter_max; i++) {
igt_output_set_pipe(output, pipe);

wm_setup_plane(display, pipe, i, parms);

+ if (fencing)
+ igt_pipe_set_out_fence_ptr(&display->pipes[pipe], &out_fence);
+
igt_display_commit_atomic(display, flags, (void *)(unsigned long)i);
drmHandleEvent(display->drm_fd, &drm_events);

@@ -320,6 +447,9 @@ run_transition_test(igt_display_t *display, enum pipe pipe, igt_output_t *output

wm_setup_plane(display, pipe, 0, parms);

+ if (fencing)
+ igt_pipe_request_out_fence(&display->pipes[pipe]);
+
igt_display_commit_atomic(display, flags, (void *)0UL);

drmHandleEvent(display->drm_fd, &drm_events);
@@ -333,6 +463,9 @@ run_transition_test(igt_display_t *display, enum pipe pipe, igt_output_t *output
if (type == TRANSITION_MODESET)
igt_output_override_mode(output, &override_mode);

+ if (fencing)
+ igt_pipe_set_out_fence_ptr(&display->pipes[pipe], &out_fence);
+
igt_display_commit_atomic(display, flags, (void *)(unsigned long)j);
drmHandleEvent(display->drm_fd, &drm_events);

@@ -340,6 +473,9 @@ run_transition_test(igt_display_t *display, enum pipe pipe, igt_output_t *output
if (type == TRANSITION_MODESET)
igt_output_override_mode(output, NULL);

+ if (fencing)
+ igt_pipe_set_out_fence_ptr(&display->pipes[pipe], &out_fence);
+
igt_display_commit_atomic(display, flags, (void *)(unsigned long)i);
drmHandleEvent(display->drm_fd, &drm_events);
}
@@ -676,14 +812,26 @@ igt_main
for_each_pipe_with_valid_output(&display, pipe, output)
run_transition_test(&display, pipe, output, TRANSITION_PLANES, false, false);

+ igt_subtest("plane-all-transition-fencing")
+ for_each_pipe_with_valid_output(&display, pipe, output)
+ run_transition_test(&display, pipe, output, TRANSITION_PLANES, false, true);
+
igt_subtest("plane-all-transition-nonblocking")
for_each_pipe_with_valid_output(&display, pipe, output)
run_transition_test(&display, pipe, output, TRANSITION_PLANES, true, false);

+ igt_subtest("plane-all-transition-nonblocking-fencing")
+ for_each_pipe_with_valid_output(&display, pipe, output)
+ run_transition_test(&display, pipe, output, TRANSITION_PLANES, true, true);
+
igt_subtest("plane-all-modeset-transition")
for_each_pipe_with_valid_output(&display, pipe, output)
run_transition_test(&display, pipe, output, TRANSITION_MODESET, false, false);

+ igt_subtest("plane-all-modeset-transition-fencing")
+ for_each_pipe_with_valid_output(&display, pipe, output)
+ run_transition_test(&display, pipe, output, TRANSITION_MODESET, false, true);
+
igt_subtest("plane-toggle-modeset-transition")
for_each_pipe_with_valid_output(&display, pipe, output)
run_transition_test(&display, pipe, output, TRANSITION_MODESET_DISABLE, false, false);