diff mbox

[i-g-t,v4,09/11] tests/kms_atomic_transition: add out_fences tests

Message ID 20170201012520.27352-10-robert.foss@collabora.com (mailing list archive)
State New, archived
Headers show

Commit Message

Robert Foss Feb. 1, 2017, 1:25 a.m. UTC
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
---
 lib/igt_kms.c                 |  16 +++++
 tests/kms_atomic_transition.c | 153 ++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 164 insertions(+), 5 deletions(-)

Comments

Brian Starkey Feb. 1, 2017, 10:40 a.m. UTC | #1
On Tue, Jan 31, 2017 at 08:25:18PM -0500, Robert Foss wrote:
>Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
>Signed-off-by: Robert Foss <robert.foss@collabora.com>
>---
> lib/igt_kms.c                 |  16 +++++
> tests/kms_atomic_transition.c | 153 ++++++++++++++++++++++++++++++++++++++++--
> 2 files changed, 164 insertions(+), 5 deletions(-)
>
>diff --git a/lib/igt_kms.c b/lib/igt_kms.c
>index 7bf3fa3a..64f8b337 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
>@@ -2470,6 +2471,21 @@ 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_fd == -1)
>+				continue;
>+
>+			igt_assert(pipe_obj->out_fence_fd >= 0);
>+			ret = sync_fence_wait(pipe_obj->out_fence_fd, 1000);
>+			igt_assert(ret == 0);
>+			close(pipe_obj->out_fence_fd);

Setting it to -1 after closing seems like a good idea.

Also see my comment on patch 11 about interactions with
get_last_out_fence.

-Brian

>+		}
>+	}
>+
> 	drmModeAtomicFree(req);
> 	return ret;
>
>diff --git a/tests/kms_atomic_transition.c b/tests/kms_atomic_transition.c
>index 72429759..4b1278a4 100644
>--- a/tests/kms_atomic_transition.c
>+++ b/tests/kms_atomic_transition.c
>@@ -23,7 +23,9 @@
>
> #include "igt.h"
> #include "drmtest.h"
>+#include "sw_sync.h"
> #include <errno.h>
>+#include <pthread.h>
> #include <stdbool.h>
> #include <stdio.h>
> #include <string.h>
>@@ -253,6 +255,94 @@ 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);
>+		close(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 +363,10 @@ 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 (fencing)
>+		prepare_fencing(display, pipe);
>
> 	if (nonblocking)
> 		flags |= DRM_MODE_ATOMIC_NONBLOCK;
>@@ -307,12 +401,48 @@ 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_request_out_fence(&display->pipes[pipe]);
>+
>+		ret = igt_display_try_commit_atomic(display, DRM_MODE_ATOMIC_TEST_ONLY | DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
>+		if (ret != -EINVAL || display->pipes[pipe].n_planes < 3)
>+			break;
>+
>+		ret = 0;
>+		for_each_plane_on_pipe(display, pipe, plane) {
>+			i = plane->index;
>+
>+			if (plane->type == DRM_PLANE_TYPE_PRIMARY ||
>+			    plane->type == DRM_PLANE_TYPE_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);
>
>-		igt_display_commit_atomic(display, flags, (void *)(unsigned long)i);
>+		atomic_commit(display, pipe, flags, (void *)(unsigned long)i, fencing);
> 		drmHandleEvent(display->drm_fd, &drm_events);
>
> 		if (type == TRANSITION_MODESET_DISABLE) {
>@@ -320,8 +450,7 @@ run_transition_test(igt_display_t *display, enum pipe pipe, igt_output_t *output
>
> 			wm_setup_plane(display, pipe, 0, parms);
>
>-			igt_display_commit_atomic(display, flags, (void *)0UL);
>-
>+			atomic_commit(display, pipe, flags, (void *) 0UL, fencing);
> 			drmHandleEvent(display->drm_fd, &drm_events);
> 		} else {
> 			uint32_t j;
>@@ -333,20 +462,22 @@ 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);
>
>-				igt_display_commit_atomic(display, flags, (void *)(unsigned long)j);
>+				atomic_commit(display, pipe, flags, (void *)(unsigned long) j, fencing);
> 				drmHandleEvent(display->drm_fd, &drm_events);
>
> 				wm_setup_plane(display, pipe, i, parms);
> 				if (type == TRANSITION_MODESET)
> 					igt_output_override_mode(output, NULL);
>
>-				igt_display_commit_atomic(display, flags, (void *)(unsigned long)i);
>+				atomic_commit(display, pipe, flags, (void *)(unsigned long) i, fencing);
> 				drmHandleEvent(display->drm_fd, &drm_events);
> 			}
> 		}
> 	}
>
> cleanup:
>+	unprepare_fencing(display, pipe);
>+
> 	igt_output_set_pipe(output, PIPE_NONE);
>
> 	for_each_plane_on_pipe(display, pipe, plane)
>@@ -676,14 +807,26 @@ 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);
>-- 
>2.11.0.453.g787f75f05
>
Robert Foss Feb. 1, 2017, 4:42 p.m. UTC | #2
On 2017-02-01 05:40 AM, Brian Starkey wrote:
> On Tue, Jan 31, 2017 at 08:25:18PM -0500, Robert Foss wrote:
>> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
>> Signed-off-by: Robert Foss <robert.foss@collabora.com>
>> ---
>> lib/igt_kms.c                 |  16 +++++
>> tests/kms_atomic_transition.c | 153
>> ++++++++++++++++++++++++++++++++++++++++--
>> 2 files changed, 164 insertions(+), 5 deletions(-)
>>
>> diff --git a/lib/igt_kms.c b/lib/igt_kms.c
>> index 7bf3fa3a..64f8b337 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
>> @@ -2470,6 +2471,21 @@ 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_fd == -1)
>> +                continue;
>> +
>> +            igt_assert(pipe_obj->out_fence_fd >= 0);
>> +            ret = sync_fence_wait(pipe_obj->out_fence_fd, 1000);
>> +            igt_assert(ret == 0);
>> +            close(pipe_obj->out_fence_fd);
>
> Setting it to -1 after closing seems like a good idea.
>
> Also see my comment on patch 11 about interactions with
> get_last_out_fence.
>
> -Brian

Ack, fixed in v5.


Rob.

>
>> +        }
>> +    }
>> +
>>     drmModeAtomicFree(req);
>>     return ret;
>>
>> diff --git a/tests/kms_atomic_transition.c
>> b/tests/kms_atomic_transition.c
>> index 72429759..4b1278a4 100644
>> --- a/tests/kms_atomic_transition.c
>> +++ b/tests/kms_atomic_transition.c
>> @@ -23,7 +23,9 @@
>>
>> #include "igt.h"
>> #include "drmtest.h"
>> +#include "sw_sync.h"
>> #include <errno.h>
>> +#include <pthread.h>
>> #include <stdbool.h>
>> #include <stdio.h>
>> #include <string.h>
>> @@ -253,6 +255,94 @@ 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);
>> +        close(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 +363,10 @@ 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 (fencing)
>> +        prepare_fencing(display, pipe);
>>
>>     if (nonblocking)
>>         flags |= DRM_MODE_ATOMIC_NONBLOCK;
>> @@ -307,12 +401,48 @@ 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_request_out_fence(&display->pipes[pipe]);
>> +
>> +        ret = igt_display_try_commit_atomic(display,
>> DRM_MODE_ATOMIC_TEST_ONLY | DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
>> +        if (ret != -EINVAL || display->pipes[pipe].n_planes < 3)
>> +            break;
>> +
>> +        ret = 0;
>> +        for_each_plane_on_pipe(display, pipe, plane) {
>> +            i = plane->index;
>> +
>> +            if (plane->type == DRM_PLANE_TYPE_PRIMARY ||
>> +                plane->type == DRM_PLANE_TYPE_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);
>>
>> -        igt_display_commit_atomic(display, flags, (void *)(unsigned
>> long)i);
>> +        atomic_commit(display, pipe, flags, (void *)(unsigned long)i,
>> fencing);
>>         drmHandleEvent(display->drm_fd, &drm_events);
>>
>>         if (type == TRANSITION_MODESET_DISABLE) {
>> @@ -320,8 +450,7 @@ run_transition_test(igt_display_t *display, enum
>> pipe pipe, igt_output_t *output
>>
>>             wm_setup_plane(display, pipe, 0, parms);
>>
>> -            igt_display_commit_atomic(display, flags, (void *)0UL);
>> -
>> +            atomic_commit(display, pipe, flags, (void *) 0UL, fencing);
>>             drmHandleEvent(display->drm_fd, &drm_events);
>>         } else {
>>             uint32_t j;
>> @@ -333,20 +462,22 @@ 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);
>>
>> -                igt_display_commit_atomic(display, flags, (void
>> *)(unsigned long)j);
>> +                atomic_commit(display, pipe, flags, (void *)(unsigned
>> long) j, fencing);
>>                 drmHandleEvent(display->drm_fd, &drm_events);
>>
>>                 wm_setup_plane(display, pipe, i, parms);
>>                 if (type == TRANSITION_MODESET)
>>                     igt_output_override_mode(output, NULL);
>>
>> -                igt_display_commit_atomic(display, flags, (void
>> *)(unsigned long)i);
>> +                atomic_commit(display, pipe, flags, (void *)(unsigned
>> long) i, fencing);
>>                 drmHandleEvent(display->drm_fd, &drm_events);
>>             }
>>         }
>>     }
>>
>> cleanup:
>> +    unprepare_fencing(display, pipe);
>> +
>>     igt_output_set_pipe(output, PIPE_NONE);
>>
>>     for_each_plane_on_pipe(display, pipe, plane)
>> @@ -676,14 +807,26 @@ 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);
>> --
>> 2.11.0.453.g787f75f05
>>
diff mbox

Patch

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 7bf3fa3a..64f8b337 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
@@ -2470,6 +2471,21 @@  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_fd == -1)
+				continue;
+
+			igt_assert(pipe_obj->out_fence_fd >= 0);
+			ret = sync_fence_wait(pipe_obj->out_fence_fd, 1000);
+			igt_assert(ret == 0);
+			close(pipe_obj->out_fence_fd);
+		}
+	}
+
 	drmModeAtomicFree(req);
 	return ret;
 
diff --git a/tests/kms_atomic_transition.c b/tests/kms_atomic_transition.c
index 72429759..4b1278a4 100644
--- a/tests/kms_atomic_transition.c
+++ b/tests/kms_atomic_transition.c
@@ -23,7 +23,9 @@ 
 
 #include "igt.h"
 #include "drmtest.h"
+#include "sw_sync.h"
 #include <errno.h>
+#include <pthread.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <string.h>
@@ -253,6 +255,94 @@  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);
+		close(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 +363,10 @@  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 (fencing)
+		prepare_fencing(display, pipe);
 
 	if (nonblocking)
 		flags |= DRM_MODE_ATOMIC_NONBLOCK;
@@ -307,12 +401,48 @@  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_request_out_fence(&display->pipes[pipe]);
+
+		ret = igt_display_try_commit_atomic(display, DRM_MODE_ATOMIC_TEST_ONLY | DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
+		if (ret != -EINVAL || display->pipes[pipe].n_planes < 3)
+			break;
+
+		ret = 0;
+		for_each_plane_on_pipe(display, pipe, plane) {
+			i = plane->index;
+
+			if (plane->type == DRM_PLANE_TYPE_PRIMARY ||
+			    plane->type == DRM_PLANE_TYPE_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);
 
-		igt_display_commit_atomic(display, flags, (void *)(unsigned long)i);
+		atomic_commit(display, pipe, flags, (void *)(unsigned long)i, fencing);
 		drmHandleEvent(display->drm_fd, &drm_events);
 
 		if (type == TRANSITION_MODESET_DISABLE) {
@@ -320,8 +450,7 @@  run_transition_test(igt_display_t *display, enum pipe pipe, igt_output_t *output
 
 			wm_setup_plane(display, pipe, 0, parms);
 
-			igt_display_commit_atomic(display, flags, (void *)0UL);
-
+			atomic_commit(display, pipe, flags, (void *) 0UL, fencing);
 			drmHandleEvent(display->drm_fd, &drm_events);
 		} else {
 			uint32_t j;
@@ -333,20 +462,22 @@  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);
 
-				igt_display_commit_atomic(display, flags, (void *)(unsigned long)j);
+				atomic_commit(display, pipe, flags, (void *)(unsigned long) j, fencing);
 				drmHandleEvent(display->drm_fd, &drm_events);
 
 				wm_setup_plane(display, pipe, i, parms);
 				if (type == TRANSITION_MODESET)
 					igt_output_override_mode(output, NULL);
 
-				igt_display_commit_atomic(display, flags, (void *)(unsigned long)i);
+				atomic_commit(display, pipe, flags, (void *)(unsigned long) i, fencing);
 				drmHandleEvent(display->drm_fd, &drm_events);
 			}
 		}
 	}
 
 cleanup:
+	unprepare_fencing(display, pipe);
+
 	igt_output_set_pipe(output, PIPE_NONE);
 
 	for_each_plane_on_pipe(display, pipe, plane)
@@ -676,14 +807,26 @@  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);