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

[Robert Foss <robert.foss@collabora.com>]

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
>>
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