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....
> +
> + 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.
-Chris
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