[igt-dev] [PATCH v4 2/2] tests/amdgpu: Add test for ODM combine

Kamil Konieczny kamil.konieczny at linux.intel.com
Tue Aug 22 19:45:58 UTC 2023


Hi Aurabindo,

On 2023-08-21 at 16:18:42 -0400, Aurabindo Pillai wrote:
> Thanks for the review Alex.
> 
> Kamil,
> 
> There seems to be a false positive failure for this patchset:
> https://lists.freedesktop.org/archives/igt-dev/2023-August/060105.html
> 
> Do you have any further review suggestions or is it okay to merge ?
> 

This is not ok, on some images your test will not build,
to reproduce:

follow links from failed build to find out what image was used
for example here: https://gitlab.freedesktop.org/gfx-ci/igt-ci-tags/-/jobs/47853345

install podman, enter to igt-tools source dir,
then run script:

POD_IGT=registry.freedesktop.org/gfx-ci/igt-ci-tags/build-debian:commit-26f3d20c6ff4274aeb71d4851cdf7a7cefb0a008

mkdir -p /tmp/igt-build
cp -R * /tmp/igt-build/
sudo podman run -i -t -v /tmp/igt-build/:/opt/builds --privileged ${POD_IGT}

## end of script

now you will have root prompt '#' inside podman image (debian),
enter commands:

# cd /opt/builds
# meson build
# ninja -C build

imho this is problem on some old(?) systems where the system
and/or igt headers are missing.

Please fix this before merging.

Regards,
Kamil

> 
> On 2023-08-21 11:39, Alex Hung wrote:
> > Reviewed-by: Alex Hung <alex.hung at amd.com>
> > 
> > On 2023-08-21 08:07, Aurabindo Pillai wrote:
> > > Add a test that checks whether ODM Combine mode is triggered when high
> > > refresh rate timing is committed on hardware it supports. This test
> > > requires a DSC capable monitor.
> > > 
> > > Changes in V2: Added check to skip test on hardware that does not have
> > > ODM combine segments debugfs endpoint exposed
> > > 
> > > Changes in V3: Removed data->w,h since its not used; Removed license
> > > text and use SPDX identifier instead.
> > > 
> > > Changes in V4: Checkpatch.pl style fixes
> > > 
> > > Signed-off-by: Aurabindo Pillai <aurabindo.pillai at amd.com>
> > > ---
> > >   tests/amdgpu/amd_odm.c   | 189 +++++++++++++++++++++++++++++++++++++++
> > >   tests/amdgpu/meson.build |   1 +
> > >   2 files changed, 190 insertions(+)
> > >   create mode 100644 tests/amdgpu/amd_odm.c
> > > 
> > > diff --git a/tests/amdgpu/amd_odm.c b/tests/amdgpu/amd_odm.c
> > > new file mode 100644
> > > index 000000000..2781ad1c2
> > > --- /dev/null
> > > +++ b/tests/amdgpu/amd_odm.c
> > > @@ -0,0 +1,189 @@
> > > +// SPDX-License-Identifier: MIT
> > > +/*
> > > + * Copyrights 2023 Advanced Micro Devices, Inc.
> > > + */
> > > +
> > > +#include <fcntl.h>
> > > +#include <stdio.h>
> > > +#include <xf86drmMode.h>
> > > +
> > > +#include "igt.h"
> > > +#include "igt_amd.h"
> > > +#include "igt_edid.h"
> > > +
> > > +IGT_TEST_DESCRIPTION("Test whether ODM Combine mode is triggered
> > > when timings with high refresh "
> > > +             "rate is committed");
> > > +
> > > +enum odmc_mode {
> > > +    ODMC_2_TO_1,
> > > +    ODMC_4_TO_1,
> > > +};
> > > +
> > > +/* Common test data. */
> > > +struct data {
> > > +    igt_display_t display;
> > > +    igt_plane_t *primary;
> > > +    igt_output_t *output;
> > > +    igt_pipe_t *pipe;
> > > +    drmModeModeInfoPtr mode;
> > > +    enum pipe pipe_id;
> > > +    int fd;
> > > +};
> > > +
> > > +static const drmModeModeInfo test_mode[] = {
> > > +    { 1278720,
> > > +    3840, 3952, 3984, 4000, 0,
> > > +    2160, 2210, 2215, 2220, 0,
> > > +    30,
> > > +    DRM_MODE_FLAG_NHSYNC,
> > > +    0x40,
> > > +    "4k144\0",
> > > +    }, /* from HP Omen 27c */
> > > +
> > > +};
> > > +
> > > +#define TEST_MODE_IDX_ODMC_2_TO_1 0
> > > +
> > > +static void test_init(struct data *data)
> > > +{
> > > +    igt_display_t *display = &data->display;
> > > +
> > > +    /* It doesn't matter which pipe we choose on amdpgu. */
> > > +    data->pipe_id = PIPE_A;
> > > +    data->pipe = &data->display.pipes[data->pipe_id];
> > > +
> > > +    igt_display_reset(display);
> > > +
> > > +    /* find a connected non-HDMI output */
> > > +    data->output = NULL;
> > > +    for (int i = 0; i < data->display.n_outputs; ++i) {
> > > +        drmModeConnector *connector =
> > > data->display.outputs[i].config.connector;
> > > +
> > > +        if (connector->connection == DRM_MODE_CONNECTED)
> > > +            data->output = &data->display.outputs[i];
> > > +    }
> > > +    igt_require_f(data->output, "Requires a connected output\n");
> > > +
> > > +    data->mode = igt_output_get_mode(data->output);
> > > +    igt_assert(data->mode);
> > > +
> > > +   
> > > igt_skip_on_f(!igt_amd_output_has_odm_combine_segments(data->fd,
> > > data->output->name),
> > > +              "ASIC does not support reading ODM combine segments\n");
> > > +
> > > +    igt_skip_on_f(!is_dp_dsc_supported(data->fd, data->output->name),
> > > +              "The monitor must be DSC capable\n");
> > > +
> > > +    igt_skip_on_f(data->output->config.connector->connector_type ==
> > > DRM_MODE_CONNECTOR_HDMIA ||
> > > +              data->output->config.connector->connector_type ==
> > > DRM_MODE_CONNECTOR_HDMIB,
> > > +              "ODM Combine isn't supported on HDMI 1.x\n");
> > > +
> > > +    data->primary = igt_pipe_get_plane_type(data->pipe,
> > > DRM_PLANE_TYPE_PRIMARY);
> > > +    igt_output_set_pipe(data->output, data->pipe_id);
> > > +
> > > +    igt_display_reset(display);
> > > +}
> > > +
> > > +static void test_fini(struct data *data)
> > > +{
> > > +    igt_display_reset(&data->display);
> > > +    igt_display_commit_atomic(&data->display,
> > > DRM_MODE_ATOMIC_ALLOW_MODESET, 0);
> > > +}
> > > +
> > > +/* Forces a mode for a connector. */
> > > +static void force_output_mode(struct data *d, igt_output_t *output,
> > > +                  const drmModeModeInfo *mode)
> > > +{
> > > +    /* This allows us to create a virtual sink. */
> > > +    if (!igt_output_is_connected(output)) {
> > > +        kmstest_force_edid(d->fd, output->config.connector,
> > > +                   igt_kms_get_4k_edid());
> > > +
> > > +        kmstest_force_connector(d->fd, output->config.connector,
> > > +                    FORCE_CONNECTOR_DIGITAL);
> > > +    }
> > > +
> > > +    igt_output_override_mode(output, mode);
> > > +}
> > > +
> > > +static void run_test_odmc(struct data *data, enum odmc_mode m,
> > > const drmModeModeInfo *mode)
> > > +{
> > > +    igt_display_t *display = &data->display;
> > > +    struct igt_fb buffer;
> > > +    char buf[256];
> > > +    int ret, seg, fd;
> > > +    int i = 0;
> > > +
> > > +    test_init(data);
> > > +
> > > +    force_output_mode(data, data->output, mode);
> > > +
> > > +    igt_create_color_fb(display->drm_fd, mode->hdisplay,
> > > +                mode->vdisplay, DRM_FORMAT_XRGB8888,
> > > +                DRM_FORMAT_MOD_LINEAR, 1.f, 0.f, 0.f,
> > > +                &buffer);
> > > +
> > > +    igt_output_set_pipe(data->output, i);
> > > +
> > > +    igt_plane_set_fb(data->primary, &buffer);
> > > +
> > > +    ret = igt_display_try_commit_atomic(display,
> > > +                        DRM_MODE_ATOMIC_ALLOW_MODESET |
> > > +                        DRM_MODE_ATOMIC_TEST_ONLY,
> > > +                        NULL);
> > > +    igt_skip_on_f(ret != 0, "Unsupported mode\n");
> > > +
> > > +    igt_display_commit_atomic(display,
> > > DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
> > > +
> > > +    fd = igt_debugfs_connector_dir(data->fd, data->output->name,
> > > O_RDONLY);
> > > +    igt_assert(fd >= 0);
> > > +
> > > +    ret = igt_debugfs_simple_read(fd, "odm_combine_segments", buf,
> > > sizeof(buf));
> > > +    close(fd);
> > > +    igt_require(ret > 0);
> > > +
> > > +    seg = strtol(buf, NULL, 0);
> > > +
> > > +    switch (m) {
> > > +    case ODMC_2_TO_1:
> > > +        igt_assert_f(seg == 2,
> > > +                 "ODM Combine uses %d segments for connector %s,
> > > expected 2\n",
> > > +                 seg, data->output->name);
> > > +        break;
> > > +    case ODMC_4_TO_1:
> > > +        igt_assert_f(seg == 4,
> > > +                 "ODM Combine uses %d segments for connector %s,
> > > expected 4\n",
> > > +                 seg, data->output->name);
> > > +        break;
> > > +    }
> > > +
> > > +    igt_remove_fb(display->drm_fd, &buffer);
> > > +
> > > +    test_fini(data);
> > > +}
> > > +
> > > +igt_main
> > > +{
> > > +    struct data data;
> > > +
> > > +    memset(&data, 0, sizeof(data));
> > > +
> > > +    igt_fixture
> > > +    {
> > > +        data.fd = drm_open_driver_master(DRIVER_ANY);
> > > +
> > > +        kmstest_set_vt_graphics_mode();
> > > +
> > > +        igt_display_require(&data.display, data.fd);
> > > +        igt_require(&data.display.is_atomic);
> > > +        igt_display_require_output(&data.display);
> > > +
> > > +    }
> > > +
> > > +    igt_subtest_f("odm-combine-2-to-1-%s",
> > > test_mode[TEST_MODE_IDX_ODMC_2_TO_1].name)
> > > +        run_test_odmc(&data, ODMC_2_TO_1,
> > > &test_mode[TEST_MODE_IDX_ODMC_2_TO_1]);
> > > +
> > > +    igt_fixture
> > > +    {
> > > +        igt_display_fini(&data.display);
> > > +    }
> > > +}
> > > diff --git a/tests/amdgpu/meson.build b/tests/amdgpu/meson.build
> > > index 6c6166167..6032a38e8 100644
> > > --- a/tests/amdgpu/meson.build
> > > +++ b/tests/amdgpu/meson.build
> > > @@ -35,6 +35,7 @@ if libdrm_amdgpu.found()
> > >                 'amd_vm',
> > >                 'amd_vrr_range',
> > >                 'amd_mall',
> > > +              'amd_odm',
> > >               ]
> > >       amdgpu_deps += libdrm_amdgpu
> > >   endif
> 
> -- 
> --
> 
> Thanks & Regards,
> Jay


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