Op 12-09-17 om 12:09 schreef Chris Wilson:
> Quoting Maarten Lankhorst (2017-09-12 10:57:13)
>> This tests the various parts of atomic that I want to make
>> interruptible. Running with --debug shows the stats from
>> __igt_sigiter_continue, which can be used to make sure that
>> we don't fall over.
>>
>> The default igt kms helpers use drmIoctl, which is not intercepted
>> by igt_while_interruptible. Only igt_ioctl is. This means we have
>> to call the ioctls manually here.
>>
>> Changes since v1:
>> - Implement interruptible DPMS checking too.
>> - Use igt_ioctl + igt_while_interruptible, instead of the signal helper
>> shotgun.
>> Changes since v2:
>> - Bump whitespace to get rid of the weird double } at same indent.
>> - Use more newlines in the call to the atomic ioctl.
>>
>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
>> Cc: Daniel Stone <daniels@xxxxxxxxxxxxx>
>> Acked-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
>> ---
>> lib/igt_kms.c | 3 +-
>> lib/igt_kms.h | 1 +
>> tests/Makefile.sources | 1 +
>> tests/kms_atomic_interruptible.c | 323 +++++++++++++++++++++++++++++++++++++++
>> 4 files changed, 327 insertions(+), 1 deletion(-)
>> create mode 100644 tests/kms_atomic_interruptible.c
>>
>> diff --git a/lib/igt_kms.c b/lib/igt_kms.c
>> index 72fde792ba89..7bcafc072f70 100644
>> --- a/lib/igt_kms.c
>> +++ b/lib/igt_kms.c
>> @@ -186,7 +186,8 @@ const char *igt_crtc_prop_names[IGT_NUM_CRTC_PROPS] = {
>>
>> const char *igt_connector_prop_names[IGT_NUM_CONNECTOR_PROPS] = {
>> "scaling mode",
>> - "CRTC_ID"
>> + "CRTC_ID",
>> + "DPMS"
>> };
>>
>> /*
>> diff --git a/lib/igt_kms.h b/lib/igt_kms.h
>> index e5dc329b161e..3d1061fa08c8 100644
>> --- a/lib/igt_kms.h
>> +++ b/lib/igt_kms.h
>> @@ -114,6 +114,7 @@ extern const char *igt_crtc_prop_names[];
>> enum igt_atomic_connector_properties {
>> IGT_CONNECTOR_SCALING_MODE = 0,
>> IGT_CONNECTOR_CRTC_ID,
>> + IGT_CONNECTOR_DPMS,
>> IGT_NUM_CONNECTOR_PROPS
>> };
>>
>> diff --git a/tests/Makefile.sources b/tests/Makefile.sources
>> index 0f4e39af10a1..cf542df181a8 100644
>> --- a/tests/Makefile.sources
>> +++ b/tests/Makefile.sources
>> @@ -172,6 +172,7 @@ TESTS_progs = \
>> kms_3d \
>> kms_addfb_basic \
>> kms_atomic \
>> + kms_atomic_interruptible \
>> kms_atomic_transition \
>> kms_busy \
>> kms_ccs \
>> diff --git a/tests/kms_atomic_interruptible.c b/tests/kms_atomic_interruptible.c
>> new file mode 100644
>> index 000000000000..dcc60f1c654a
>> --- /dev/null
>> +++ b/tests/kms_atomic_interruptible.c
>> @@ -0,0 +1,323 @@
>> +/*
>> + * Copyright © 2016 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 "drmtest.h"
>> +#include "sw_sync.h"
>> +
>> +enum plane_test_type
>> +{
>> + test_legacy_modeset,
>> + test_atomic_modeset,
>> + test_legacy_dpms,
>> + test_setplane,
>> + test_setcursor,
>> + test_pageflip
>> +};
>> +
>> +static int block_plane(igt_display_t *display, igt_output_t *output, enum plane_test_type test_type, igt_plane_t *plane)
>> +{
>> + int timeline = sw_sync_timeline_create();
>> +
>> + igt_fork(child, 1) {
>> + /* Ignore the signal helper, we need to block indefinitely on the fence. */
>> + signal(SIGCONT, SIG_IGN);
>> +
>> + if (test_type == test_legacy_modeset || test_type == test_atomic_modeset) {
>> + igt_output_set_pipe(output, PIPE_NONE);
>> + igt_plane_set_fb(plane, NULL);
>> + }
>> + igt_plane_set_fence_fd(plane, sw_sync_timeline_create_fence(timeline, 1));
> Does igt_plane_set_fence_fd() consume the fd? If it does, that's nasty,
> but if it doesn't we have a leak.
>
> From my inspection, igt_plane_set_fence_fd creates a private copy of the
> fence fd, and doesn't bother to check if it was successful....
Seems that igt_plane_set_fence_fd should check if dup worked, but it
only leaks in our throwaway fork, so it's not a leak that will matter in any way. :)
>> +
>> + igt_display_commit2(display, COMMIT_ATOMIC);
>> + }
>> +
>> + return timeline;
>> +}
>> +
>> +static void unblock(int block)
>> +{
>> + sw_sync_timeline_inc(block, 1);
>> + close(block);
>> +}
>> +
>> +static void ev_page_flip(int fd, unsigned seq, unsigned tv_sec, unsigned tv_usec, void *user_data)
>> +{
>> + igt_debug("Retrieved vblank seq: %u on unk\n", seq);
>> +}
>> +
>> +static drmEventContext drm_events = {
>> + .version = 2,
>> + .page_flip_handler = ev_page_flip
>> +};
>> +
>> +static void run_plane_test(igt_display_t *display, enum pipe pipe, igt_output_t *output,
>> + enum plane_test_type test_type, unsigned plane_type)
>> +{
>> + drmModeModeInfo *mode;
>> + igt_fb_t fb, fb2;
>> + igt_plane_t *primary, *plane;
>> + int block;
>> +
>> + /*
>> + * Make sure we start with everything disabled to force a real modeset.
>> + * igt_display_init only sets sw state, and assumes the first test doesn't care
>> + * about hw state.
>> + */
>> + igt_display_commit2(display, COMMIT_ATOMIC);
>> +
>> + igt_output_set_pipe(output, pipe);
>> +
>> + primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
>> + plane = igt_output_get_plane_type(output, plane_type);
>> + mode = igt_output_get_mode(output);
>> +
>> + igt_create_fb(display->drm_fd, mode->hdisplay, mode->vdisplay,
>> + DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE, &fb);
>> +
>> + switch (plane_type) {
>> + case DRM_PLANE_TYPE_PRIMARY:
>> + igt_create_fb(display->drm_fd, mode->hdisplay, mode->vdisplay,
>> + DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE, &fb2);
>> + break;
>> + case DRM_PLANE_TYPE_CURSOR:
>> + igt_create_fb(display->drm_fd, 64, 64,
>> + DRM_FORMAT_ARGB8888, LOCAL_DRM_FORMAT_MOD_NONE, &fb2);
>> + break;
>> + }
>> +
>> + if (test_type != test_legacy_modeset && test_type != test_atomic_modeset) {
>> + igt_plane_set_fb(primary, &fb);
>> + igt_display_commit2(display, COMMIT_ATOMIC);
>> + }
>> +
>> + igt_plane_set_fb(plane, &fb2);
>> +
>> + block = block_plane(display, output, test_type, plane);
>> + sleep(1);
>> +
>> + igt_fork(child, 1) {
>> + signal(SIGCONT, SIG_IGN);
>> + igt_assert(sleep(5) == 0);
>> +
>> + unblock(block);
>> + }
>> +
>> + /* run the test */
>> + igt_while_interruptible(true) {
>> + switch (test_type) {
>> + case test_legacy_modeset: {
>> + struct drm_mode_crtc crtc = {
>> + .set_connectors_ptr = (uint64_t)(uintptr_t)&output->id,
>> + .count_connectors = 1,
>> + .crtc_id = primary->pipe->crtc_id,
>> + .fb_id = fb2.fb_id,
>> + .mode_valid = 1,
>> + .mode = *(struct drm_mode_modeinfo*)mode,
>> + };
>> +
>> + do_or_die(igt_ioctl(display->drm_fd, DRM_IOCTL_MODE_SETCRTC, &crtc));
>> + break;
>> + }
>> + case test_atomic_modeset: {
>> + uint32_t objs[3] = {
>> + plane->pipe->crtc_id,
>> + output->id,
>> + plane->drm_plane->plane_id
>> + };
>> + uint32_t count_props[3] = { 2, 1, 6 };
>> + uint32_t props[] = {
>> + /* crtc: 2 props */
>> + plane->pipe->atomic_props_crtc[IGT_CRTC_MODE_ID],
>> + plane->pipe->atomic_props_crtc[IGT_CRTC_ACTIVE],
>> + /* connector: 1 prop */
>> + output->config.atomic_props_connector[IGT_CONNECTOR_CRTC_ID],
>> + /* plane: remainder props */
>> + plane->atomic_props_plane[IGT_PLANE_CRTC_ID],
>> + plane->atomic_props_plane[IGT_PLANE_FB_ID],
>> + plane->atomic_props_plane[IGT_PLANE_SRC_W],
>> + plane->atomic_props_plane[IGT_PLANE_SRC_H],
>> + plane->atomic_props_plane[IGT_PLANE_CRTC_W],
>> + plane->atomic_props_plane[IGT_PLANE_CRTC_H]
>> + };
>> + uint64_t prop_vals[] = {
>> + /* crtc */
>> + 0, /* mode_id, filled in below */
>> + true,
>> + /* connector */
>> + plane->pipe->crtc_id,
>> + /* plane */
>> + plane->pipe->crtc_id,
>> + fb2.fb_id,
>> + IGT_FIXED(fb2.width, 0),
>> + IGT_FIXED(fb2.height, 0),
>> + fb2.width,
>> + fb2.height
>> + };
>> + uint32_t mode_blob;
>> +
>> + struct drm_mode_atomic atm = {
>> + .flags = DRM_MODE_ATOMIC_ALLOW_MODESET,
>> + .count_objs = 3, /* crtc, connector, plane */
>> + .objs_ptr = (uint64_t)(uintptr_t)&objs,
>> + .count_props_ptr = (uint64_t)(uintptr_t)&count_props,
>> + .props_ptr = (uint64_t)(uintptr_t)&props,
>> + .prop_values_ptr = (uint64_t)(uintptr_t)&prop_vals,
>> + };
>> +
>> + do_or_die(drmModeCreatePropertyBlob(display->drm_fd, mode, sizeof(*mode), &mode_blob));
>> + prop_vals[0] = mode_blob;
>> +
>> + do_or_die(igt_ioctl(display->drm_fd, DRM_IOCTL_MODE_ATOMIC, &atm));
>> +
>> + do_or_die(drmModeDestroyPropertyBlob(display->drm_fd, mode_blob));
>> + break;
>> + }
>> + case test_legacy_dpms: {
>> + struct drm_mode_connector_set_property prop = {
>> + .value = DRM_MODE_DPMS_OFF,
>> + .prop_id = output->config.atomic_props_connector[IGT_CONNECTOR_DPMS],
>> + .connector_id = output->id,
>> + };
>> +
>> + do_or_die(igt_ioctl(display->drm_fd, DRM_IOCTL_MODE_SETPROPERTY, &prop));
>> + break;
>> + }
>> + case test_setcursor: {
>> + struct drm_mode_cursor cur = {
>> + .flags = DRM_MODE_CURSOR_BO,
>> + .crtc_id = plane->pipe->crtc_id,
>> + .width = fb2.width,
>> + .height = fb2.height,
>> + .handle = fb2.gem_handle,
>> + };
>> + do_or_die(igt_ioctl(display->drm_fd, DRM_IOCTL_MODE_CURSOR, &cur));
>> + break;
>> + }
>> + case test_setplane: {
>> + struct drm_mode_set_plane setplane = {
>> + .plane_id = plane->drm_plane->plane_id,
>> + .crtc_id = plane->pipe->crtc_id,
>> + .fb_id = fb2.fb_id,
>> + .crtc_w = fb2.width,
>> + .crtc_h = fb2.height,
>> + .src_w = IGT_FIXED(fb2.width, 0),
>> + .src_h = IGT_FIXED(fb2.height, 0),
>> + };
>> +
>> + do_or_die(igt_ioctl(display->drm_fd, DRM_IOCTL_MODE_SETPLANE, &setplane));
>> + break;
>> + }
>> + case test_pageflip: {
>> + struct drm_mode_crtc_page_flip pageflip = {
>> + .crtc_id = plane->pipe->crtc_id,
>> + .fb_id = fb2.fb_id,
>> + .flags = DRM_MODE_PAGE_FLIP_EVENT,
>> + };
>> +
>> + do_or_die(igt_ioctl(display->drm_fd, DRM_IOCTL_MODE_PAGE_FLIP, &pageflip));
>> +
>> + drmHandleEvent(display->drm_fd, &drm_events);
>> + break;
>> + }
>> + }
>> + }
> Looks ok. You might want to refactor out the do_or_die() if you ever hit
> them in practice, but in the mean time they make it clear what you want
> to check.
I don't think the do_or_die are harmful here, but perhaps replace with do_ioctl?
~Maarten
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