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

Tvrtko Ursulin tvrtko.ursulin at linux.intel.com
Tue Sep 26 11:08:36 UTC 2023


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.

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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