[PATCH i-g-t 1/3] tests/intel/kms_pm_dc:Add basic validation checks to achieve deep-pkgc

[Naladala, Ramanaidu]

Hi Kamil,

On 7/17/2024 8:56 PM, Kamil Konieczny wrote:
> Hi Naladala,
> On 2024-07-17 at 19:35:54 +0530, Naladala Ramanaidu wrote:
> 
> please improve subject, was:
> 
> [PATCH i-g-t 1/3] tests/intel/kms_pm_dc:Add basic validation checks to achieve deep-pkgc
> 
> imho better:
> 
> [PATCH i-g-t 1/3] tests/intel/kms_pm_dc: Add basic validation for deep-pkgc
> 
> Note space after colon ':' char (before 'Add' word)


Sure i will update this change in subject line.

> or even shorter:
> 
> [PATCH i-g-t 1/3] tests/intel/kms_pm_dc: Validate deep-pkgc
> 
>> Add connector checks and test requirement validations for deep-pkgc
> 
> Add dot '.' at sentence end. How do you validate deep-pkgc?
> I do not see any new subtest added.
I am not adding new subtest. May be my commit subject is confusing you. 
I will change the commit subject/Message as below:

[PATCH i-g-t 1/3] tests/intel/kms_pm_dc: Check for eDP and Disable VRR 
if Enabled

Enhanced the test_deep_pkgc_state function to include an eDP connection 
check. Additionally, implemented logic to disable Variable Refresh Rate 
(VRR) if it is found to be enabled.


> 
> Regards,
> Kamil
> 
>>
>> v2: Correct indentation and update comments (Suraj, Jeevan)
>>
>> Signed-off-by: Naladala Ramanaidu <ramanaidu.naladala at intel.com>
>> ---
>>   tests/intel/kms_pm_dc.c | 30 +++++++++++++++++++++---------
>>   1 file changed, 21 insertions(+), 9 deletions(-)
>>
>> diff --git a/tests/intel/kms_pm_dc.c b/tests/intel/kms_pm_dc.c
>> index e1318bfa6..8fb35a2df 100644
>> --- a/tests/intel/kms_pm_dc.c
>> +++ b/tests/intel/kms_pm_dc.c
>> @@ -592,31 +592,43 @@ static unsigned int read_pkgc_counter(int debugfs_root_fd)
>>   static void test_deep_pkgc_state(data_t *data)
>>   {
>>   	unsigned int pre_val = 0, cur_val = 0;
>> -	time_t start = time(NULL), duration = 2, delay;
>> +	time_t start = time(NULL), duration = 2, vb_delay, delay;
>>   	enum pipe pipe;
>>   	bool pkgc_flag = false;
>> -	bool vrr_supported = false, flip = true;
>> +	bool flip = true;
>>   
>>   	igt_display_t *display = &data->display;
>>   	igt_plane_t *primary;
>>   	igt_output_t *output = NULL;
>>   
>>   	for_each_pipe_with_valid_output(display, pipe, output) {
>> -		/* Check VRR capabilities before setting up */
>> +
>> +		if (output->config.connector->connector_type != DRM_MODE_CONNECTOR_eDP)
>> +			igt_skip("No eDP output found, skipping the test.\n");
>> +		/* DEEP PKG_C_LATENCY can be configured only for fixed refresh rates */
>>   		if (igt_output_has_prop(output, IGT_CONNECTOR_VRR_CAPABLE) &&
>>   		    igt_output_get_prop(output, IGT_CONNECTOR_VRR_CAPABLE)) {
>> -			vrr_supported = true;
>> +			igt_pipe_set_prop_value(display, pipe,
>> +						IGT_CRTC_VRR_ENABLED, false);
>> +			igt_assert(igt_display_try_commit_atomic(display,
>> +								 DRM_MODE_ATOMIC_ALLOW_MODESET,
>> +								 NULL) == 0);
>>   			break;
>>   		}
>>   	}
>>   
>> -	/* Skip the test if no VRR capable output is found */
>> -	if (!vrr_supported)
>> -		igt_skip("No VRR capable output found, skipping the test.\n");
>> -
>>   	igt_display_reset(display);
>> -
>>   	igt_output_set_pipe(output, pipe);
>> +	for_each_connector_mode(output) {
>> +		data->mode = &output->config.connector->modes[j__];
>> +		vb_delay = 1 * (MSECS / (data->mode->vrefresh));
>> +		/*
>> +		 * At least 5ms vblank time required to program higher
>> +		 * watermark levels
>> +		 */
>> +		if (vb_delay > (5 * MSEC))
>> +			break;
>> +	}
>>   
>>   	data->output = output;
>>   	data->mode = igt_output_get_mode(output);
>> -- 
>> 2.43.0
>>