[PATCH v3 1/2] tests/kms_vrr: Add a subtest for seamless modeset to a virtual LRR mode
Saarinen, Jani
jani.saarinen at intel.com
Thu Apr 25 07:42:53 UTC 2024
Hi,
> -----Original Message-----
> From: igt-dev <igt-dev-bounces at lists.freedesktop.org> On Behalf Of Modem,
> Bhanuprakash
> Sent: Thursday, 25 April 2024 10.39
> To: Manasi Navare <navaremanasi at chromium.org>; igt-
> dev at lists.freedesktop.org
> Cc: Drew Davenport <ddavenport at chromium.org>; Ville Syrjälä
> <ville.syrjala at linux.intel.com>; Sean Paul <seanpaul at chromium.org>
> Subject: Re: [PATCH v3 1/2] tests/kms_vrr: Add a subtest for seamless
> modeset to a virtual LRR mode
>
> Hi Manasi,
>
> On 25-04-2024 01:43 am, Manasi Navare wrote:
> > This subtest validates LRR fastset functionality by testing seamless
> > switching without full modeset to any of the virtual LRR mode within VRR
> range.
> > Here we start from highest refresh rate mode and then switch to
> > virtual LRR modes in the steps of 10Hz within the VRR range.
> >
> > This is used to test the LRR fastset functionality of the driver.
> >
> > v5:
> > - Pass a reference to flip_and_measure (bhanu)
> > - Add a new line between between declaration and code logic
> >
> > v4:
> > - Change the test name to align with drrs/vrr tests (Bhanu)
> > - Fix some build warnings due to rebase
> > - Use a local virtual_mode variable
> >
> > v3:
> > - Fix build error due to rebase (Manasi)
> >
> > Cc: Drew Davenport <ddavenport at chromium.org>
> > Cc: Bhanuprakash Modem <bhanuprakash.modem at intel.com>
> > Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > Cc: Sean Paul <seanpaul at chromium.org>
> > Signed-off-by: Manasi Navare <navaremanasi at chromium.org>
> > ---
> > tests/kms_vrr.c | 73
> ++++++++++++++++++++++++++++++++++++++++++++++---
> > 1 file changed, 69 insertions(+), 4 deletions(-)
> >
> > diff --git a/tests/kms_vrr.c b/tests/kms_vrr.c index
> > 15c62b34b..7f64d6806 100644
> > --- a/tests/kms_vrr.c
> > +++ b/tests/kms_vrr.c
> > @@ -66,6 +66,11 @@
> > * Description: Test to switch RR seamlessly without modeset.
> > * Functionality: adaptive_sync, drrs
> > *
> > + * SUBTEST: seamless-rr-switch-virtual
> > + * Description: Test to create a Virtual Mode in VRR range and switch to it
> > + * without a full modeset.
> > + * Functionality: LRR
> > + *
> > * SUBTEST: max-min
> > * Description: Oscillates between highest and lowest refresh each frame
> for
> > * manual flicker profiling
> > @@ -89,9 +94,10 @@ enum {
> > TEST_FLIPLINE = 1 << 3,
> > TEST_SEAMLESS_VRR = 1 << 4,
> > TEST_SEAMLESS_DRRS = 1 << 5,
> > - TEST_FASTSET = 1 << 6,
> > - TEST_MAXMIN = 1 << 7,
> > - TEST_NEGATIVE = 1 << 8,
> > + TEST_SEAMLESS_VIRTUAL_RR = 1 << 6,
> > + TEST_FASTSET = 1 << 7,
> > + TEST_MAXMIN = 1 << 8,
> > + TEST_NEGATIVE = 1 << 9,
> > };
> >
> > enum {
> > @@ -214,6 +220,18 @@ low_rr_mode_with_same_res(igt_output_t
> *output, unsigned int vrr_min)
> > return mode;
> > }
> >
> > +static drmModeModeInfo
> > +virtual_rr_vrr_range_mode(igt_output_t *output, unsigned int
> > +virtual_refresh_rate) {
> > + drmModeModeInfo mode = *igt_output_get_mode(output);
> > + uint64_t clock_hz = mode.clock * 1000;
> > +
> > + mode.vtotal = clock_hz / (mode.htotal * virtual_refresh_rate);
> > + mode.vrefresh = virtual_refresh_rate;
> > +
> > + return mode;
> > +}
> > +
> > /* Read min and max vrr range from the connector debugfs. */
> > static range_t
> > get_vrr_range(data_t *data, igt_output_t *output) @@ -641,6 +659,49
> > @@ test_seamless_rr_basic(data_t *data, enum pipe pipe, igt_output_t
> *output, uint3
> > vrr ? "on" : "off", vrr ? "not reached" : "exceeded", result);
> > }
> >
> > +static void
> > +test_seamless_virtual_rr_basic(data_t *data, enum pipe pipe,
> > +igt_output_t *output, uint32_t flags) {
> > + uint32_t result;
> > + unsigned int vrefresh;
> > + uint64_t rate[] = {0};
> > +
> > + igt_info("Use HIGH_RR Mode as default\n");
> > + kmstest_dump_mode(&data->switch_modes[HIGH_RR_MODE]);
> > +
> > + prepare_test(data, output, pipe);
> > + rate[0] =
> > +rate_from_refresh(data->switch_modes[HIGH_RR_MODE].vrefresh);
> > +
> > + /*
> > + * Sink with DRR and VRR can be in downclock mode so
> > + * switch to highest refresh rate mode.
> > + */
> > + igt_output_override_mode(output, &data-
> >switch_modes[HIGH_RR_MODE]);
> > + igt_assert(igt_display_try_commit_atomic(&data->display,
> > +DRM_MODE_PAGE_FLIP_EVENT, NULL) == 0);
> > +
> > + result = flip_and_measure(data, output, pipe, rate, 1,
> TEST_DURATION_NS);
> > + igt_assert_f(result > 75,
> > + "Refresh rate (%u Hz) %"PRIu64"ns: Target threshold not
> reached, result was %u%%\n",
> > + data->switch_modes[HIGH_RR_MODE].vrefresh, rate[0],
> result);
> > +
> > + /* Switch to Virtual RR */
> > + for (vrefresh = data->range.min + 10; vrefresh < data->range.max;
> vrefresh += 10) {
> > + drmModeModeInfo virtual_mode =
> virtual_rr_vrr_range_mode(output,
> > +vrefresh);
> > +
> > + igt_info("Requesting Virtual Mode with Refresh Rate (%u Hz):
> \n", vrefresh);
> > + kmstest_dump_mode(&virtual_mode);
> > +
> > + igt_output_override_mode(output, &virtual_mode);
> > + igt_assert(igt_display_try_commit_atomic(&data->display, 0,
> NULL)
> > +== 0);
> > +
> > + rate[0] = rate_from_refresh(vrefresh);
> > + result = flip_and_measure(data, output, pipe, rate, 1,
> TEST_DURATION_NS);
> > + igt_assert_f(result > 75,
> > + "Refresh rate (%u Hz) %"PRIu64"ns: Target
> threshold not reached, result was %u%%\n",
> > + vrefresh, rate[0], result);
> > + }
> > +}
> > +
> > static void test_cleanup(data_t *data, enum pipe pipe, igt_output_t
> *output)
> > {
> > if (vrr_capable(output))
> > @@ -686,7 +747,7 @@ static bool output_constraint(data_t *data,
> igt_output_t *output, uint32_t flags
> > igt_output_override_mode(output,
> > &data->switch_modes[HIGH_RR_MODE]);
> >
> > /* Search for a low refresh rate mode. */
> > - if (!(flags & (TEST_SEAMLESS_VRR | TEST_SEAMLESS_DRRS)))
> > + if (!(flags & (TEST_SEAMLESS_VRR | TEST_SEAMLESS_DRRS |
> > +TEST_SEAMLESS_VIRTUAL_RR)))
>
> Does this virtual RR applicable to eDP only or supports other connector types
> too? If it is eDP specific [*], then we must add a check for that.
>
> [*]:
> https://cgit.freedesktop.org/drm/igt-gpu-tools/tree/tests/kms_vrr.c#n660
>
> With above comment addressed, this patch is
> Reviewed-by: Bhanuprakash Modem <bhanuprakash.modem at intel.com>
>
> - Bhanu
Are those BAT results acceptable too?
Br,
Jani
>
> > return true;
> >
> > data->switch_modes[LOW_RR_MODE] =
> low_rr_mode_with_same_res(output,
> > data->range.min); @@ -841,6 +902,10 @@ igt_main_args("drs:", long_opts,
> help_str, opt_handler, &data)
> > "between flip timestamps converges to the
> requested rate");
> > igt_subtest_with_dynamic("flip-basic-fastset")
> > run_vrr_test(&data, test_basic, TEST_FASTSET);
> > +
> > + igt_describe("Test to switch to any custom virtual mode in
> VRR range without modeset.");
> > + igt_subtest_with_dynamic("seamless-rr-switch-virtual")
> > + run_vrr_test(&data, test_seamless_virtual_rr_basic,
> > +TEST_SEAMLESS_VIRTUAL_RR);
> > }
> >
> > igt_fixture {
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