[PATCH i-g-t, v3] tests/intel: Add tests to run suspend without display

[Sundaresan, Sujaritha]

On 8/6/2024 6:20 PM, Kamil Konieczny wrote:
> Hi Sundaresan,,
> On 2024-08-06 at 11:50:46 +0530, Sundaresan, Sujaritha wrote:
>> On 8/1/2024 5:15 PM, Kamil Konieczny wrote:
>>> Hi Sujaritha,
>>> On 2024-07-30 at 17:05:08 +0530, Sujaritha Sundaresan wrote:
>>>
>>> small nit about subject, you wrote:
>>>
>>> [PATCH i-g-t, v3] tests/intel: Add tests to run suspend without display
>>>
>>> imho this should be:
>>>
>>> [PATCH i-g-t, v3] tests/intel/xe_pm: Add tests for suspend without display
>>>
>>> More nits below.
>> Hey Kamil,
>>
>> Sure this change I can make.
>>
>>>> Add tests to validate basic execution suspend/resume cycle
>>>> without display module to rule out display related issues
>>>> from the suspend/resume stack.
>>>>
>>>> v2: Add normal reload cycle after running test (Anshuman)
>>>>
>>>> v3: Rebase
>>>>
>>>> Signed-off-by: Sujaritha Sundaresan<sujaritha.sundaresan at intel.com>
>>>> Reviewed-by: Anshuman Gupta<anshuman.gupta at intel.com>
>>>> ---
>>>>    tests/intel/xe_pm.c | 34 ++++++++++++++++++++++++++++++++++
>>>>    1 file changed, 34 insertions(+)
>>>>
>>>> diff --git a/tests/intel/xe_pm.c b/tests/intel/xe_pm.c
>>>> index 8b115e2f6..03f742265 100644
>>>> --- a/tests/intel/xe_pm.c
>>>> +++ b/tests/intel/xe_pm.c
>>>> @@ -17,6 +17,7 @@
>>>>    #include "igt.h"
>>>>    #include "lib/igt_device.h"
>>>> +#include "lib/igt_kmod.h"
>>>>    #include "lib/igt_pm.h"
>>>>    #include "lib/igt_sysfs.h"
>>>>    #include "lib/igt_syncobj.h"
>>>> @@ -229,6 +230,10 @@ static void close_fw_handle(int sig)
>>>>     * Description: suspend/autoresume on %arg[1] state and exec after RPM
>>>>     * Functionality: pm - %arg[1]
>>>>     *
>>>> + * SUBTEST: %s-without-display
>>>> + * Description: suspend/autoresume on %arg[1] state without display
>>>> + * Functionality: pm - %arg[1]
>>> I see you copy-pasted it but imho both Description and
>>> Functionality documentation fields should be static, here and
>>> in other places.
>>> +cc Katarzyna Piecielska<katarzyna.piecielska at intel.com>

Hi Kamil,

Sorry I didn't get this change. This is inline with the rest of the file 
right ?

>>>
>>>> + *
>>>>     * arg[1]:
>>>>     *
>>>>     * @s2idle:	s2idle
>>>> @@ -681,6 +686,7 @@ igt_main
>>>>    	struct drm_xe_engine_class_instance *hwe;
>>>>    	device_t device;
>>>>    	uint32_t d3cold_allowed;
>>>> +	const char *opts;
>>>>    	int sysfs_fd;
>>>>    	const struct s_state {
>>>> @@ -757,6 +763,34 @@ igt_main
>>>>    					  NO_RPM, 0);
>>>>    		}
>>>> +		igt_subtest_f("%s-without-display", s->name) {
>>>> +
>>>> +			if (!drmModeGetResources(device.fd_xe))
>>>> +				return;
>>> Why 'return' here?! Imho this should be checked in fixture
>>> or be a skip. Or other way around - what about a headless board
>>> or one without any connected display?
>>>
>>> Regards,
>>> Kamil
>> I think this patch idea sort stemmed from the cases where we have a display
>> connected and
>>
>> want to make sure that the suspend/resume issues are not being caused by the
>> display.
>>
>> But would you suggest expanding the test to have the headless/no display
>> situations? If so what changes are you suggesting for that ?
>>
>> Thanks,
>>
>> Suja
>>
> I would suggest turn this into a igt_skip_on_f(), not a return.
>
> Regards,
> Kamil

Sure I will switch this to

igt_skip_on(!drmModeGetResources(device.fd_xe))

Thanks,

Suja

>>>> +
>>>> +			xe_for_each_engine(device.fd_xe, hwe) {
>>>> +
>>>> +				igt_debug("Reload w/o display\n");
>>>> +
>>>> +				igt_kmsg(KMSG_INFO "Unloading Xe\n");
>>>> +				igt_assert_eq(igt_xe_driver_unload(), 0);
>>>> +
>>>> +				igt_kmsg(KMSG_INFO "Re-loading Xe without display\n");
>>>> +				igt_assert_eq(igt_xe_driver_load("enable_display=0"), 0);
>>>> +
>>>> +				test_exec(device, hwe, 1, 2, s->state,
>>>> +					  NO_RPM, 0);
>>>> +
>>>> +				igt_debug("Reload as normal\n");
>>>> +
>>>> +				igt_kmsg(KMSG_INFO "Unloading Xe\n");
>>>> +				igt_assert_eq(igt_xe_driver_unload(), 0);
>>>> +
>>>> +				igt_kmsg(KMSG_INFO "Re-loading Xe\n");
>>>> +				igt_assert_eq(igt_xe_driver_load(opts), 0);
>>>> +			}
>>>> +		}
>>>> +
>>>>    		for (const struct vm_op *op = vm_op; op->name; op++) {
>>>>    			igt_subtest_f("%s-vm-bind-%s", s->name, op->name) {
>>>>    				xe_for_each_engine(device.fd_xe, hwe)
>>>> -- 
>>>> 2.34.1
>>>>
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