[PATCH i-g-t] tests/kms_flip: Add flip-vs-dpms-on-nop subtest

[Sharma, Swati2]

Hi Ville,

On 01-04-2025 09:54 pm, Ville Syrjälä wrote:
> On Tue, Apr 01, 2025 at 01:44:16PM +0530, Sharma, Swati2 wrote:
>> Hi Ville,
>>
>> Since this test is failing across all platforms.
>> https://intel-gfx-ci.01.org/tree/intel-xe/IGTPW_12687/shards-all.html?testfilter=lip-vs-dpms-on-nop
>> If this is expected beh, do we need to modify IGT to handle this
>> negative scenario.
> It won't fail anymore since the kernel fix is in already.
Do you want to add this test? Can you re-run to know whether its fixed?
>
>> On 01-03-2025 01:12 am, Ville Syrjala wrote:
>>> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>>>
>>> Verify that redundant DPMS ON requests don't result in
>>> actual commits (and thus frame drops). This behaviour
>>> is guaranteed by the kernel for atomic drivers.
>>>
>>> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
>>> ---
>>>    tests/kms_flip.c | 5 ++++-
>>>    1 file changed, 4 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/tests/kms_flip.c b/tests/kms_flip.c
>>> index 3ad4d0afb1f6..59740aca25bd 100755
>>> --- a/tests/kms_flip.c
>>> +++ b/tests/kms_flip.c
>>> @@ -176,6 +176,7 @@
>>>     * @single-buffer-flip-vs-dpms-off-vs-modeset: pageflip of same buffer along with
>>>     *                                             the modeset and dpms off
>>>     * @dpms-vs-vblank-race:                       vblank along with the dpms & modeset
>>> + * @flip-vs-dpms-on-nop:                       pageflip and issue nop DPMS ON
>>>     */
>>>    
>>>    /**
>>> @@ -240,6 +241,7 @@
>>>     */
>>>    
>>>    #define TEST_DPMS		(1 << 0)
>>> +#define TEST_DPMS_ON_NOP	(1 << 1)
>>>    
>>>    #define TEST_PAN		(1 << 3)
>>>    #define TEST_MODESET		(1 << 4)
>>> @@ -957,7 +959,7 @@ static bool run_test_step(struct test_output *o, unsigned int *events)
>>>    	if (o->flags & TEST_MODESET)
>>>    		igt_assert(set_mode(o, o->fb_ids[o->current_fb_id], 0, 0) == 0);
>>>    
>>> -	if (o->flags & TEST_DPMS)
>>> +	if (o->flags & (TEST_DPMS | TEST_DPMS_ON_NOP))
>>>    		set_dpms(o, DRM_MODE_DPMS_ON);
>>>    
>>>    	if (o->flags & TEST_VBLANK_RACE) {
>>> @@ -2020,6 +2022,7 @@ igt_main_args("e", NULL, help_str, opt_handler, NULL)
>>>    			"plain-flip-fb-recreate" },
>>>    		{ 30, TEST_FLIP | TEST_RMFB | TEST_MODESET , "flip-vs-rmfb" },
>>>    		{ 2, TEST_FLIP | TEST_DPMS | TEST_EINVAL | TEST_BASIC, "flip-vs-dpms" },
>>> +		{ 2, TEST_FLIP | TEST_DPMS_ON_NOP | TEST_CHECK_TS, "flip-vs-dpms-on-nop" },
>>>    		{ 30,  TEST_FLIP | TEST_PAN, "flip-vs-panning" },
>>>    		{ 2, TEST_FLIP | TEST_MODESET | TEST_EINVAL | TEST_BASIC, "flip-vs-modeset" },
>>>    		{ 30,  TEST_FLIP | TEST_VBLANK_EXPIRED_SEQ,