[igt-dev] [PATCH i-g-t 07/14] benchmarks/gem_wsim: cleanups

Bernatowicz, Marcin marcin.bernatowicz at linux.intel.com
Wed Sep 27 19:03:51 UTC 2023



On 9/26/2023 1:08 PM, Tvrtko Ursulin wrote:
> 
> On 26/09/2023 09:44, Marcin Bernatowicz wrote:
>> Cleaning checkpatch.pl reported warnings/errors.
>> Removed unused fence_signal field from struct w_step.
>> calloc vs malloc in parse_workload for struct workload.
>>
>> Signed-off-by: Marcin Bernatowicz <marcin.bernatowicz at linux.intel.com>
>> ---
>>   benchmarks/gem_wsim.c | 56 ++++++++++++++++++++++++++-----------------
>>   1 file changed, 34 insertions(+), 22 deletions(-)
>>
>> diff --git a/benchmarks/gem_wsim.c b/benchmarks/gem_wsim.c
>> index 3b01340bf..daa20fb8a 100644
>> --- a/benchmarks/gem_wsim.c
>> +++ b/benchmarks/gem_wsim.c
>> @@ -1,3 +1,4 @@
>> +// SPDX-License-Identifier: MIT
>>   /*
>>    * Copyright © 2017 Intel Corporation
>>    *
>> @@ -76,8 +77,7 @@ struct duration {
>>       bool unbound_duration;
>>   };
>> -enum w_type
>> -{
>> +enum w_type {
>>       BATCH,
>>       SYNC,
>>       DELAY,
>> @@ -102,8 +102,7 @@ struct dep_entry {
>>       int working_set; /* -1 = step dependecy, >= 0 working set id */
>>   };
>> -struct deps
>> -{
>> +struct deps {
>>       int nr;
>>       bool submit_fence;
>>       struct dep_entry *list;
>> @@ -137,8 +136,7 @@ struct working_set {
>>   struct workload;
>> -struct w_step
>> -{
>> +struct w_step {
>>       struct workload *wrk;
>>       /* Workload step metadata */
>> @@ -155,7 +153,6 @@ struct w_step
>>           int period;
>>           int target;
>>           int throttle;
>> -        int fence_signal;
>>           int priority;
>>           struct {
>>               unsigned int engine_map_count;
>> @@ -194,8 +191,7 @@ struct ctx {
>>       uint64_t sseu;
>>   };
>> -struct workload
>> -{
>> +struct workload {
>>       unsigned int id;
>>       unsigned int nr_steps;
>> @@ -807,6 +803,7 @@ static int add_buffers(struct working_set *set, 
>> char *str)
>>       for (i = 0; i < add; i++) {
>>           struct work_buffer_size *sz = &sizes[set->nr + i];
>> +
>>           sz->min = min_sz;
>>           sz->max = max_sz;
>>           sz->size = 0;
>> @@ -895,13 +892,16 @@ parse_duration(unsigned int nr_steps, struct 
>> duration *dur, double scale_dur, ch
>>   }
>>   #define int_field(_STEP_, _FIELD_, _COND_, _ERR_) \
>> -    if ((field = strtok_r(fstart, ".", &fctx))) { \
>> -        tmp = atoi(field); \
>> -        check_arg(_COND_, _ERR_, nr_steps); \
>> -        step.type = _STEP_; \
>> -        step._FIELD_ = tmp; \
>> -        goto add_step; \
>> -    } \
>> +    do { \
>> +        field = strtok_r(fstart, ".", &fctx); \
>> +        if (field) { \
>> +            tmp = atoi(field); \
>> +            check_arg(_COND_, _ERR_, nr_steps); \
>> +            step.type = _STEP_; \
>> +            step._FIELD_ = tmp; \
>> +            goto add_step; \
>> +        } \
>> +    } while (0)
>>   static struct workload *
>>   parse_workload(struct w_arg *arg, unsigned int flags, double scale_dur,
>> @@ -926,7 +926,8 @@ parse_workload(struct w_arg *arg, unsigned int 
>> flags, double scale_dur,
>>           valid = 0;
>>           memset(&step, 0, sizeof(step));
>> -        if ((field = strtok_r(fstart, ".", &fctx))) {
>> +        field = strtok_r(fstart, ".", &fctx);
>> +        if (field) {
>>               fstart = NULL;
>>               if (!strcmp(field, "d")) {
>> @@ -943,6 +944,7 @@ parse_workload(struct w_arg *arg, unsigned int 
>> flags, double scale_dur,
>>                   }
>>               } else if (!strcmp(field, "P")) {
>>                   unsigned int nr = 0;
>> +
>>                   while ((field = strtok_r(fstart, ".", &fctx))) {
>>                       tmp = atoi(field);
>>                       check_arg(nr == 0 && tmp <= 0,
>> @@ -968,6 +970,7 @@ parse_workload(struct w_arg *arg, unsigned int 
>> flags, double scale_dur,
>>                         "Invalid sync target at step %u!\n");
>>               } else if (!strcmp(field, "S")) {
>>                   unsigned int nr = 0;
>> +
>>                   while ((field = strtok_r(fstart, ".", &fctx))) {
>>                       tmp = atoi(field);
>>                       check_arg(tmp <= 0 && nr == 0,
>> @@ -1004,6 +1007,7 @@ parse_workload(struct w_arg *arg, unsigned int 
>> flags, double scale_dur,
>>                   goto add_step;
>>               } else if (!strcmp(field, "M")) {
>>                   unsigned int nr = 0;
>> +
>>                   while ((field = strtok_r(fstart, ".", &fctx))) {
>>                       tmp = atoi(field);
>>                       check_arg(nr == 0 && tmp <= 0,
>> @@ -1034,6 +1038,7 @@ parse_workload(struct w_arg *arg, unsigned int 
>> flags, double scale_dur,
>>                         "Invalid terminate target at step %u!\n");
>>               } else if (!strcmp(field, "X")) {
>>                   unsigned int nr = 0;
>> +
>>                   while ((field = strtok_r(fstart, ".", &fctx))) {
>>                       tmp = atoi(field);
>>                       check_arg(nr == 0 && tmp <= 0,
>> @@ -1058,6 +1063,7 @@ parse_workload(struct w_arg *arg, unsigned int 
>> flags, double scale_dur,
>>                   goto add_step;
>>               } else if (!strcmp(field, "B")) {
>>                   unsigned int nr = 0;
>> +
>>                   while ((field = strtok_r(fstart, ".", &fctx))) {
>>                       tmp = atoi(field);
>>                       check_arg(nr == 0 && tmp <= 0,
>> @@ -1077,6 +1083,7 @@ parse_workload(struct w_arg *arg, unsigned int 
>> flags, double scale_dur,
>>                   goto add_step;
>>               } else if (!strcmp(field, "b")) {
>>                   unsigned int nr = 0;
>> +
>>                   while ((field = strtok_r(fstart, ".", &fctx))) {
>>                       check_arg(nr > 2,
>>                             "Invalid bond format at step %u!\n",
>> @@ -1148,7 +1155,8 @@ parse_workload(struct w_arg *arg, unsigned int 
>> flags, double scale_dur,
>>               valid++;
>>           }
>> -        if ((field = strtok_r(fstart, ".", &fctx))) {
>> +        field = strtok_r(fstart, ".", &fctx);
>> +        if (field) {
>>               fstart = NULL;
>>               i = str_to_engine(field);
>> @@ -1160,7 +1168,8 @@ parse_workload(struct w_arg *arg, unsigned int 
>> flags, double scale_dur,
>>               step.engine = i;
>>           }
>> -        if ((field = strtok_r(fstart, ".", &fctx))) {
>> +        field = strtok_r(fstart, ".", &fctx);
>> +        if (field) {
>>               fstart = NULL;
>>               tmp = parse_duration(nr_steps, &step.duration, 
>> scale_dur, field);
>> @@ -1170,7 +1179,8 @@ parse_workload(struct w_arg *arg, unsigned int 
>> flags, double scale_dur,
>>               valid++;
>>           }
>> -        if ((field = strtok_r(fstart, ".", &fctx))) {
>> +        field = strtok_r(fstart, ".", &fctx);
>> +        if (field) {
>>               fstart = NULL;
>>               tmp = parse_dependencies(nr_steps, &step, field);
>> @@ -1180,7 +1190,8 @@ parse_workload(struct w_arg *arg, unsigned int 
>> flags, double scale_dur,
>>               valid++;
>>           }
>> -        if ((field = strtok_r(fstart, ".", &fctx))) {
>> +        field = strtok_r(fstart, ".", &fctx);
>> +        if (field) {
>>               fstart = NULL;
>>               check_arg(strlen(field) != 1 ||
>> @@ -1224,7 +1235,7 @@ add_step:
>>           nr_steps += app_w->nr_steps;
>>       }
>> -    wrk = malloc(sizeof(*wrk));
>> +    wrk = calloc(1, sizeof(*wrk));
> 
> Rest looks fine but this change I don't know what checkpatch has against 
> it and why calloc(1,..) is better. That's the kernels checkpatch.pl? I 
> don't get it when I run it.

I'll restore it in next version.
My previous patch changes contained fields which were zeroed here, now 
it's not required and creates confusion, I agree it's not a 
cleanup/issue and not reported by the any tool.
--
marcin
> 
> Regards,
> 
> Tvrtko
> 
>>       igt_assert(wrk);
>>       wrk->nr_steps = nr_steps;
>> @@ -2717,6 +2728,7 @@ int main(int argc, char **argv)
>>       if (append_workload_arg) {
>>           struct w_arg arg = { NULL, append_workload_arg, 0 };
>> +
>>           app_w = parse_workload(&arg, flags, scale_dur, scale_time,
>>                          NULL);
>>           if (!app_w) {


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