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46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: iT5qaOXRvV8t+KSSKICoCym4Gr9KfM0gOz39GIGLsL3W8qsJu/AhbfPtTalpnJxu3bgQJbuhLCEUcdYltrEa9g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ1PR11MB6201 X-OriginatorOrg: intel.com X-BeenThere: igt-dev@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development mailing list for IGT GPU Tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" On 01-08-2024 12:52, Riana Tauro wrote: > Hi Karthik > > On 8/1/2024 11:50 AM, Poosa, Karthik wrote: >> >> On 31-07-2024 16:06, Riana Tauro wrote: >>> Hi Karthik >>> >>> On 7/30/2024 5:20 PM, Karthik Poosa wrote: >>>> After reset min and max takes sometime to get set to rpn. >>>> So add a wait of 100ms after gt reset before reading >>>> min and max frequencies. >>>> >>>> Signed-off-by: Karthik Poosa >>>> --- >>>>   tests/intel/xe_gt_freq.c | 7 +++++++ >>>>   1 file changed, 7 insertions(+) >>>> >>>> diff --git a/tests/intel/xe_gt_freq.c b/tests/intel/xe_gt_freq.c >>>> index 93ebb5ed0..718f720c0 100644 >>>> --- a/tests/intel/xe_gt_freq.c >>>> +++ b/tests/intel/xe_gt_freq.c >>>> @@ -33,6 +33,12 @@ >>>>    */ >>>>   #define ACT_FREQ_LATENCY_US 100000 >>>>   +/* >>>> + * After gt reset, min and max freq may take sometime to set to rpn. >>>> + * So adding a wait of 100ms after reset. >>>> + */ >>>> +#define GT_RESET_FREQ_LATENCY_US 100000 >>> >>> Both ACT_FREQ_LATENCY_US  and  GT_RESET_FREQ_LATENCY_US  are same >>> values. >>> >>> Why not rename ACT_FREQ_LATENCY_US to LATENCY_US and use that instead? >> >> ACT_FREQ_LATENCY_US is used between set_freq and get freq without gt >> reset in between. >> >> GT_RESET_FREQ_LATENCY_US is delay after reset, so kept it as a >> separate macro. > > Value in both cases is same. Can have a generic name and use it > in both cases. Even though value is same, it is used in different paths. So I think is better to have different names. >> >>> >>> Thanks, >>> Riana >>>> + >>>>   static int set_freq(int fd, int gt_id, const char *freq_name, >>>> uint32_t freq) >>>>   { >>>>       int ret = -EAGAIN; >>>> @@ -318,6 +324,7 @@ static void test_reset(int fd, int gt_id, int >>>> cycles) >>>>                    "Failed after %d good cycles\n", i); >>>>             xe_force_gt_reset_async(fd, gt_id); >>>> +        usleep(GT_RESET_FREQ_LATENCY_US); >>>>             igt_assert_f(get_freq(fd, gt_id, "min") == rpn, >>>>                    "Failed after %d good cycles\n", i);