[igt-dev] [PATCH i-g-t] tests/kms_cursor_crc: prevent the entire test from being aborted when a subtest fails

aemad aemad at igalia.com
Tue Oct 11 17:53:32 UTC 2022


On 2022-10-11 19:35, Juha-Pekka Heikkila wrote:
> On 11.10.2022 20.08, aemad wrote:
>> On 2022-10-10 20:52, Juha-Pekka Heikkila wrote:
>>> On 10.10.2022 17.26, aemad wrote:
>>>> Hi Juha,
>>>>
>>>> On 2022-10-10 13:16, Juha-Pekka Heikkila wrote:
>>>>> Hi Alaa,
>>>>>
>>>>> what's that invalid argument you're getting on addfb? I never tried
>>>>
>>>> I am not sure what is the invalid argument, but the failure of this test
>>>> with a cursor size 32x10 is that VKMS does not support this size yet so
>>>> the test unable to create a cursor FB.
>>>
>>> At that moment when addfb gives failure it doesn't yet relate to
>>> cursor testing, it is like any other framebuffer. As other kms tests
>>> work for you there maybe limitation on vkms not supporting so small
>>> framebuffer or it could be on libigt there's something missing for
>>> handling vkms framebuffers.
>>
>> yes, understood.
>>>
>>> I'm looking at kernel sources and I suspect you'd see in dmesg message
>>> saying  "GEM object size (%zu) smaller than minimum size (%u) for
>>> plane %d\n" when that addfb failed? If it is that message then
>>> probably into libigt for vkms there would be needed some minimum size
>>> alignment with framebuffers.
>>
>> I didn't check dmesg message, but I will check it. I got your point,
>> Thank you.
> 
> After sending that mail I did notice minimum framebuffer height for
> vkms is 20 pixels, that's where that addfb failure likely is coming
> from. It mean is this 32x10 subtest would never work on vkms and this
> test will need to be fixed to skip correctly again.
> 
> /Juha-Pekka
> 
yes, so this cursor size failed.
>>>
>>>>
>>>>
>>>>> this with vkms, normally just on i915. With i915 I cannot reproduce
>>>>> that abort you're seeing. Other kms tests run on your setup?
>>>>
>>>> I think the abortion related to VKMS driver only, but I didn't try to
>>>> run it on i915.
>>>> yes, I ran other kms test but with VKMS driver.
>>>>
>>>>>
>>>>> Anyway, that revert you're suggesting would remove support for msm
>>>>> driver on this test. Let's first summon those who made these changes
>>>>> to comment. (cc'ing Modem and Swati)
>>>>
>>>> I see, so I can check that after Modem and Swati reply.
>>>>
>>>>>
>>>>> /Juha-Pekka
>>>>
>>>> BR,
>>>> Alaa
>>>>>
>>>>> On 9.10.2022 18.18, Alaa Emad wrote:
>>>>>> Any test failure prevents the other tests to be run, aborting the entire test loop. This behavior was introduced by commit
>>>>>> 9494d53d ("tests/kms_cursor_crc: Convert tests to dynamic").
>>>>>> For instance, when running the cursor-offscreen-32x10 subtest using VKMS,
>>>>>> the execution is aborted instead of SKIP/FAIL, as in the following output:
>>>>>>
>>>>>> $ ./tests/kms_cursor_crc --run-subtest cursor-offscreen-32x10
>>>>>> (kms_cursor_crc:7447) igt_fb-CRITICAL: Test assertion failure function igt_create_fb_with_bo_size, file ../lib/igt_fb.c:2078:
>>>>>> (kms_cursor_crc:7447) igt_fb-CRITICAL: Failed assertion: (__kms_addfb(fb->fd, fb->gem_handle, fb->width, fb->height, fb->drm_format, fb->modifier, fb->strides, fb->offsets, fb->num_planes, flags, &fb->fb_id)) == 0
>>>>>> (kms_cursor_crc:7447) igt_fb-CRITICAL: Last errno: 22, Invalid argument
>>>>>> Stack trace:
>>>>>> kms_cursor_crc: ../lib/igt_core.c:1667: igt_fail: Assertion `_igt_dynamic_tests_executed < 0 || dynamic_failed_one' failed.
>>>>>> Received signal SIGABRT.
>>>>>>
>>>>>> The test was aborted after convertig tests to dynamic with cursor size 32*10 that because of the assertion in the `igt_create_fb_with_bo_size` when creating cursor in `create_cursor_fb`.
>>>>>>
>>>>>> This happened because Within a igt_subtest_with_dynamic block, explicit failure (e.g. igt_assert) is not allowed,
>>>>>> only dynamic subsubtests themselves will produce test results.
>>>>>>
>>>>>> The previous approach was running each test for all cursor sizes then move to the next test  so fix this issue
>>>>>> by running all tests for one cursor size one by one, and check if cursor size is
>>>>>> supported or not before running the test.
>>>>>>
>>>>>> Fixes: 9494d53d ("tests/kms_cursor_crc: Convert tests to dynamic")
>>>>>>
>>>>>> Signed-off-by: Alaa Emad <aemad at igalia.com>
>>>>>> ---
>>>>>>     tests/kms_cursor_crc.c | 136 +++++++++++++++++++++--------------------
>>>>>>     1 file changed, 69 insertions(+), 67 deletions(-)
>>>>>>
>>>>>> diff --git a/tests/kms_cursor_crc.c b/tests/kms_cursor_crc.c
>>>>>> index 8d3426dd..9b620389 100644
>>>>>> --- a/tests/kms_cursor_crc.c
>>>>>> +++ b/tests/kms_cursor_crc.c
>>>>>> @@ -72,7 +72,6 @@ typedef struct {
>>>>>>     	cairo_surface_t *surface;
>>>>>>     	uint32_t devid;
>>>>>>     	double alpha;
>>>>>> -	int vblank_wait_count; /* because of msm */
>>>>>>     } data_t;
>>>>>>       #define TEST_DPMS (1<<0)
>>>>>> @@ -125,12 +124,6 @@ static void cursor_disable(data_t *data)
>>>>>>     {
>>>>>>     	igt_plane_set_fb(data->cursor, NULL);
>>>>>>     	igt_plane_set_position(data->cursor, 0, 0);
>>>>>> -	igt_display_commit(&data->display);
>>>>>> -
>>>>>> -	/* do this wait here so it will not need to be added everywhere */
>>>>>> -	igt_wait_for_vblank_count(data->drm_fd,
>>>>>> -				  data->display.pipes[data->pipe].crtc_offset,
>>>>>> -				  data->vblank_wait_count);
>>>>>>     }
>>>>>>       static bool chv_cursor_broken(data_t *data, int x)
>>>>>> @@ -209,9 +202,8 @@ static void do_single_test(data_t *data, int x, int y, bool hw_test,
>>>>>>     		igt_display_commit(display);
>>>>>>       		/* Extra vblank wait is because nonblocking cursor ioctl */
>>>>>> -		igt_wait_for_vblank_count(data->drm_fd,
>>>>>> -					  display->pipes[data->pipe].crtc_offset,
>>>>>> -					  data->vblank_wait_count);
>>>>>> +		igt_wait_for_vblank(data->drm_fd,
>>>>>> +				display->pipes[data->pipe].crtc_offset);
>>>>>>       		igt_pipe_crc_get_current(data->drm_fd, pipe_crc, hwcrc);
>>>>>>     @@ -249,7 +241,11 @@ static void do_single_test(data_t *data, int x, int y, bool hw_test,
>>>>>>       		restore_image(data, swbufidx, &((cursorarea){x, y, data->curw, data->curh}));
>>>>>>     		igt_plane_set_fb(data->primary, &data->primary_fb[swbufidx]);
>>>>>> +
>>>>>>     		igt_display_commit(display);
>>>>>> +		igt_wait_for_vblank(data->drm_fd,
>>>>>> +				display->pipes[data->pipe].crtc_offset);
>>>>>> +
>>>>>>     		igt_pipe_crc_get_current(data->drm_fd, pipe_crc, &crc);
>>>>>>     		igt_assert_crc_equal(&crc, hwcrc);
>>>>>>     	}
>>>>>> @@ -267,7 +263,9 @@ static void do_fail_test(data_t *data, int x, int y, int expect)
>>>>>>     	igt_plane_set_position(data->cursor, x, y);
>>>>>>     	ret = igt_display_try_commit2(display, COMMIT_LEGACY);
>>>>>>     +	igt_plane_set_position(data->cursor, 0, 0);
>>>>>>     	cursor_disable(data);
>>>>>> +	igt_display_commit(display);
>>>>>>       	igt_assert_eq(ret, expect);
>>>>>>     }
>>>>>> @@ -689,10 +687,28 @@ static void test_rapid_movement(data_t *data)
>>>>>>     	igt_assert_lt(usec, 0.9 * 400 * 1000000 / data->refresh);
>>>>>>     }
>>>>>>     -static void run_size_tests(data_t *data, void (*testfunc)(data_t *),
>>>>>> -			   int w, int h)
>>>>>> +static void run_size_tests(data_t *data, int w, int h)
>>>>>>     {
>>>>>>     	enum pipe pipe;
>>>>>> +	int i;
>>>>>> +
>>>>>> +	struct
>>>>>> +	{
>>>>>> +		const char *name;
>>>>>> +		void (*testfunc)(data_t *);
>>>>>> +		const char *desc;
>>>>>> +	} size_tests[] = {
>>>>>> +		{"cursor-onscreen", test_crc_onscreen,
>>>>>> +		 "Check if a given-size cursor is well-positioned inside the screen."},
>>>>>> +		{"cursor-offscreen", test_crc_offscreen,
>>>>>> +		 "Check if a given-size cursor is well-positioned outside the screen."},
>>>>>> +		{"cursor-sliding", test_crc_sliding,
>>>>>> +		 "Check the smooth and pixel-by-pixel given-size cursor movements on horizontal, vertical and diagonal."},
>>>>>> +		{"cursor-random", test_crc_random,
>>>>>> +		 "Check random placement of a cursor with given size."},
>>>>>> +		{"cursor-rapid-movement", test_rapid_movement,
>>>>>> +		 "Check the rapid update of given-size cursor movements."},
>>>>>> +	};
>>>>>>       	if (w == 0 && h == 0) {
>>>>>>     		w = data->cursor_max_w;
>>>>>> @@ -709,45 +725,38 @@ static void run_size_tests(data_t *data, void (*testfunc)(data_t *),
>>>>>>     		}
>>>>>>     	}
>>>>>>     -	create_cursor_fb(data, w, h);
>>>>>> -	if (require_cursor_size(data, w, h)) {
>>>>>> -		igt_info("Cursor size %dx%d not supported by driver\n", w, h);
>>>>>> -
>>>>>> -		igt_remove_fb(data->drm_fd, &data->fb);
>>>>>> -		return;
>>>>>> -	}
>>>>>> +	igt_fixture
>>>>>> +		create_cursor_fb(data, w, h);
>>>>>>     -	for_each_pipe(&data->display, pipe) {
>>>>>> -		data->pipe = pipe;
>>>>>> -		igt_dynamic_f("pipe-%s-%s",
>>>>>> -			      kmstest_pipe_name(pipe), igt_output_name(data->output))
>>>>>> -			run_test(data, testfunc, w, h);
>>>>>> +	for (i = 0; i < ARRAY_SIZE(size_tests); i++)
>>>>>> +	{
>>>>>> +		igt_describe(size_tests[i].desc);
>>>>>> +		igt_subtest_with_dynamic_f("%s-%dx%d", size_tests[i].name, w, h)
>>>>>> +		{
>>>>>> +			for_each_pipe(&data->display, pipe)
>>>>>> +			{
>>>>>> +				data->pipe = pipe;
>>>>>> +				if (require_cursor_size(data, w, h))
>>>>>> +				{
>>>>>> +					igt_info("Cursor size %dx%d not supported by driver\n", w, h);
>>>>>> +					continue;
>>>>>> +				}
>>>>>> +
>>>>>> +				igt_dynamic_f("pipe-%s-%s",
>>>>>> +							  kmstest_pipe_name(pipe), igt_output_name(data->output))
>>>>>> +					run_test(data, size_tests[i].testfunc, w, h);
>>>>>> +			}
>>>>>> +		}
>>>>>>     	}
>>>>>>     -	igt_remove_fb(data->drm_fd, &data->fb);
>>>>>> +	igt_fixture
>>>>>> +		igt_remove_fb(data->drm_fd, &data->fb);
>>>>>>     }
>>>>>>       static void run_tests_on_pipe(data_t *data)
>>>>>>     {
>>>>>>     	enum pipe pipe;
>>>>>>     	int cursor_size;
>>>>>> -	int i;
>>>>>> -	struct {
>>>>>> -		const char *name;
>>>>>> -		void (*testfunc)(data_t *);
>>>>>> -		const char *desc;
>>>>>> -	} size_tests[] = {
>>>>>> -		{ "cursor-onscreen", test_crc_onscreen,
>>>>>> -			"Check if a given-size cursor is well-positioned inside the screen." },
>>>>>> -		{ "cursor-offscreen", test_crc_offscreen,
>>>>>> -			"Check if a given-size cursor is well-positioned outside the screen." },
>>>>>> -		{ "cursor-sliding", test_crc_sliding,
>>>>>> -			"Check the smooth and pixel-by-pixel given-size cursor movements on horizontal, vertical and diagonal." },
>>>>>> -		{ "cursor-random", test_crc_random,
>>>>>> -			"Check random placement of a cursor with given size." },
>>>>>> -		{ "cursor-rapid-movement", test_rapid_movement,
>>>>>> -			"Check the rapid update of given-size cursor movements." },
>>>>>> -	};
>>>>>>       	igt_fixture {
>>>>>>     		data->output = igt_get_single_output_for_pipe(&data->display, pipe);
>>>>>> @@ -848,30 +857,26 @@ static void run_tests_on_pipe(data_t *data)
>>>>>>     	igt_fixture
>>>>>>     		igt_remove_fb(data->drm_fd, &data->fb);
>>>>>>     -	for (i = 0; i < ARRAY_SIZE(size_tests); i++) {
>>>>>> -		igt_describe(size_tests[i].desc);
>>>>>> -		igt_subtest_group {
>>>>>> -			for (cursor_size = 32; cursor_size <= 512; cursor_size *= 2) {
>>>>>> -				int w = cursor_size;
>>>>>> -				int h = cursor_size;
>>>>>> -
>>>>>> -				igt_subtest_with_dynamic_f("%s-%dx%d", size_tests[i].name, w, h)
>>>>>> -					run_size_tests(data, size_tests[i].testfunc, w, h);
>>>>>> -
>>>>>> -				/*
>>>>>> -				 * Test non-square cursors a bit on the platforms
>>>>>> -				 * that support such things. And make it a bit more
>>>>>> -				 * interesting by using a non-pot height.
>>>>>> -				 */
>>>>>> -				h /= 3;
>>>>>> -				igt_subtest_with_dynamic_f("%s-%dx%d", size_tests[i].name, w, h)
>>>>>> -					run_size_tests(data, size_tests[i].testfunc, w, h);
>>>>>> -			}
>>>>>> +	for (cursor_size = 32; cursor_size <= 512; cursor_size *= 2)
>>>>>> +	{
>>>>>> +		int w = cursor_size;
>>>>>> +		int h = cursor_size;
>>>>>>     -			igt_subtest_with_dynamic_f("%s-max-size", size_tests[i].name)
>>>>>> -				run_size_tests(data, size_tests[i].testfunc, 0, 0);
>>>>>> -		}
>>>>>> +		igt_subtest_group
>>>>>> +			run_size_tests(data, w, h);
>>>>>> +
>>>>>> +		/*
>>>>>> +		 * Test non-square cursors a bit on the platforms
>>>>>> +		 * that support such things. And make it a bit more
>>>>>> +		 * interesting by using a non-pot height.
>>>>>> +		 */
>>>>>> +		h /= 3;
>>>>>> +
>>>>>> +		igt_subtest_group
>>>>>> +			run_size_tests(data, w, h);
>>>>>>     	}
>>>>>> +
>>>>>> +	run_size_tests(data, 0, 0);
>>>>>>     }
>>>>>>       static data_t data;
>>>>>> @@ -896,8 +901,6 @@ igt_main
>>>>>>     		kmstest_set_vt_graphics_mode();
>>>>>>       		igt_require_pipe_crc(data.drm_fd);
>>>>>> -
>>>>>> -		data.vblank_wait_count = is_msm_device(data.drm_fd) ? 2 : 1;
>>>>>>     	}
>>>>>>       	data.cursor_max_w = cursor_width;
>>>>>> @@ -913,6 +916,5 @@ igt_main
>>>>>>     		}
>>>>>>       		igt_display_fini(&data.display);
>>>>>> -		close(data.drm_fd);
>>>>>>     	}
>>>>>>     }


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