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Date: Mon, 30 Sep 2019 11:18:05 -0400
From: Prarit Bhargava <prarit@...hat.com>
To: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
platform-driver-x86@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/7] intel-speed-select: Add int argument to command
functions
On 9/26/19 4:21 PM, Srinivas Pandruvada wrote:
> On Thu, 2019-09-26 at 08:54 -0400, Prarit Bhargava wrote:
>> The current code structure has similar but separate command functions
>> for
>> the enable and disable operations. This can be improved by adding an
>> int
>> argument to the command function structure, and interpreting 1 as
>> enable
>> and 0 as disable. This change results in the removal of the disable
>> command functions.
>>
>> Add int argument to the command function structure.
> Does this brings in any significant reduction in data or code size?
It reduces code size. Right now you have separate functions for enable &
disable. These are unified into single functions.
P.
> My focus is to add features first which helps users.
>
> Thanks,
> Srinivas
>
>
>>
>> Signed-off-by: Prarit Bhargava <prarit@...hat.com>
>> Cc: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
>> ---
>> .../x86/intel-speed-select/isst-config.c | 184 +++++++---------
>> --
>> 1 file changed, 69 insertions(+), 115 deletions(-)
>>
>> diff --git a/tools/power/x86/intel-speed-select/isst-config.c
>> b/tools/power/x86/intel-speed-select/isst-config.c
>> index 2a9890c8395a..9f2798caead9 100644
>> --- a/tools/power/x86/intel-speed-select/isst-config.c
>> +++ b/tools/power/x86/intel-speed-select/isst-config.c
>> @@ -11,7 +11,8 @@
>> struct process_cmd_struct {
>> char *feature;
>> char *command;
>> - void (*process_fn)(void);
>> + void (*process_fn)(int arg);
>> + int arg;
>> };
>>
>> static const char *version_str = "v1.0";
>> @@ -678,7 +679,7 @@ static void exec_on_get_ctdp_cpu(int cpu, void
>> *arg1, void *arg2, void *arg3,
>> }
>>
>> #define _get_tdp_level(desc, suffix, object,
>> help) \
>> - static void
>> get_tdp_##object(void) \
>> + static void get_tdp_##object(int
>> arg) \
>> {
>> \
>> struct isst_pkg_ctdp
>> ctdp; \
>> \
>> @@ -724,7 +725,7 @@ static void dump_isst_config_for_cpu(int cpu,
>> void *arg1, void *arg2,
>> }
>> }
>>
>> -static void dump_isst_config(void)
>> +static void dump_isst_config(int arg)
>> {
>> if (cmd_help) {
>> fprintf(stderr,
>> @@ -787,7 +788,7 @@ static void set_tdp_level_for_cpu(int cpu, void
>> *arg1, void *arg2, void *arg3,
>> }
>> }
>>
>> -static void set_tdp_level(void)
>> +static void set_tdp_level(int arg)
>> {
>> if (cmd_help) {
>> fprintf(stderr, "Set Config TDP level\n");
>> @@ -827,7 +828,7 @@ static void dump_pbf_config_for_cpu(int cpu, void
>> *arg1, void *arg2, void *arg3,
>> }
>> }
>>
>> -static void dump_pbf_config(void)
>> +static void dump_pbf_config(int arg)
>> {
>> if (cmd_help) {
>> fprintf(stderr,
>> @@ -871,43 +872,27 @@ static void set_pbf_for_cpu(int cpu, void
>> *arg1, void *arg2, void *arg3,
>> }
>> }
>>
>> -static void set_pbf_enable(void)
>> -{
>> - int status = 1;
>> -
>> - if (cmd_help) {
>> - fprintf(stderr,
>> - "Enable Intel Speed Select Technology base
>> frequency feature [No command arguments are required]\n");
>> - exit(0);
>> - }
>> -
>> - isst_ctdp_display_information_start(outf);
>> - if (max_target_cpus)
>> - for_each_online_target_cpu_in_set(set_pbf_for_cpu,
>> NULL, NULL,
>> - NULL, &status);
>> - else
>> - for_each_online_package_in_set(set_pbf_for_cpu, NULL,
>> NULL,
>> - NULL, &status);
>> - isst_ctdp_display_information_end(outf);
>> -}
>> -
>> -static void set_pbf_disable(void)
>> +static void set_pbf_enable(int arg)
>> {
>> - int status = 0;
>> + int enable = arg;
>>
>> if (cmd_help) {
>> - fprintf(stderr,
>> - "Disable Intel Speed Select Technology base
>> frequency feature [No command arguments are required]\n");
>> + if (enable)
>> + fprintf(stderr,
>> + "Enable Intel Speed Select Technology
>> base frequency feature [No command arguments are required]\n");
>> + else
>> + fprintf(stderr,
>> + "Disable Intel Speed Select Technology
>> base frequency feature [No command arguments are required]\n");
>> exit(0);
>> }
>>
>> isst_ctdp_display_information_start(outf);
>> if (max_target_cpus)
>> for_each_online_target_cpu_in_set(set_pbf_for_cpu,
>> NULL, NULL,
>> - NULL, &status);
>> + NULL, &enable);
>> else
>> for_each_online_package_in_set(set_pbf_for_cpu, NULL,
>> NULL,
>> - NULL, &status);
>> + NULL, &enable);
>> isst_ctdp_display_information_end(outf);
>> }
>>
>> @@ -925,7 +910,7 @@ static void dump_fact_config_for_cpu(int cpu,
>> void *arg1, void *arg2,
>> fact_avx, &fact_info);
>> }
>>
>> -static void dump_fact_config(void)
>> +static void dump_fact_config(int arg)
>> {
>> if (cmd_help) {
>> fprintf(stderr,
>> @@ -985,35 +970,17 @@ static void set_fact_for_cpu(int cpu, void
>> *arg1, void *arg2, void *arg3,
>> }
>> }
>>
>> -static void set_fact_enable(void)
>> +static void set_fact_enable(int arg)
>> {
>> - int status = 1;
>> + int enable = arg;
>>
>> if (cmd_help) {
>> - fprintf(stderr,
>> - "Enable Intel Speed Select Technology Turbo
>> frequency feature\n");
>> - fprintf(stderr,
>> - "Optional: -t|--trl : Specify turbo ratio
>> limit\n");
>> - exit(0);
>> - }
>> -
>> - isst_ctdp_display_information_start(outf);
>> - if (max_target_cpus)
>> - for_each_online_target_cpu_in_set(set_fact_for_cpu,
>> NULL, NULL,
>> - NULL, &status);
>> - else
>> - for_each_online_package_in_set(set_fact_for_cpu, NULL,
>> NULL,
>> - NULL, &status);
>> - isst_ctdp_display_information_end(outf);
>> -}
>> -
>> -static void set_fact_disable(void)
>> -{
>> - int status = 0;
>> -
>> - if (cmd_help) {
>> - fprintf(stderr,
>> - "Disable Intel Speed Select Technology turbo
>> frequency feature\n");
>> + if (enable)
>> + fprintf(stderr,
>> + "Enable Intel Speed Select Technology
>> Turbo frequency feature\n");
>> + else
>> + fprintf(stderr,
>> + "Disable Intel Speed Select Technology
>> turbo frequency feature\n");
>> fprintf(stderr,
>> "Optional: -t|--trl : Specify turbo ratio
>> limit\n");
>> exit(0);
>> @@ -1022,10 +989,10 @@ static void set_fact_disable(void)
>> isst_ctdp_display_information_start(outf);
>> if (max_target_cpus)
>> for_each_online_target_cpu_in_set(set_fact_for_cpu,
>> NULL, NULL,
>> - NULL, &status);
>> + NULL, &enable);
>> else
>> for_each_online_package_in_set(set_fact_for_cpu, NULL,
>> NULL,
>> - NULL, &status);
>> + NULL, &enable);
>> isst_ctdp_display_information_end(outf);
>> }
>>
>> @@ -1048,19 +1015,25 @@ static void enable_clos_qos_config(int cpu,
>> void *arg1, void *arg2, void *arg3,
>> }
>> }
>>
>> -static void set_clos_enable(void)
>> +static void set_clos_enable(int arg)
>> {
>> - int status = 1;
>> + int enable = arg;
>>
>> if (cmd_help) {
>> - fprintf(stderr, "Enable core-power for a
>> package/die\n");
>> - fprintf(stderr,
>> - "\tClos Enable: Specify priority type with [
>> --priority|-p]\n");
>> - fprintf(stderr, "\t\t 0: Proportional, 1: Ordered\n");
>> + if (enable) {
>> + fprintf(stderr,
>> + "Enable core-power for a
>> package/die\n");
>> + fprintf(stderr,
>> + "\tClos Enable: Specify priority type
>> with [--priority|-p]\n");
>> + fprintf(stderr, "\t\t 0: Proportional, 1:
>> Ordered\n");
>> + } else {
>> + fprintf(stderr,
>> + "Disable core-power: [No command
>> arguments are required]\n");
>> + }
>> exit(0);
>> }
>>
>> - if (cpufreq_sysfs_present()) {
>> + if (enable && cpufreq_sysfs_present()) {
>> fprintf(stderr,
>> "cpufreq subsystem and core-power enable will
>> interfere with each other!\n");
>> }
>> @@ -1068,30 +1041,10 @@ static void set_clos_enable(void)
>> isst_ctdp_display_information_start(outf);
>> if (max_target_cpus)
>> for_each_online_target_cpu_in_set(enable_clos_qos_confi
>> g, NULL,
>> - NULL, NULL, &status);
>> - else
>> - for_each_online_package_in_set(enable_clos_qos_config,
>> NULL,
>> - NULL, NULL, &status);
>> - isst_ctdp_display_information_end(outf);
>> -}
>> -
>> -static void set_clos_disable(void)
>> -{
>> - int status = 0;
>> -
>> - if (cmd_help) {
>> - fprintf(stderr,
>> - "Disable core-power: [No command arguments are
>> required]\n");
>> - exit(0);
>> - }
>> -
>> - isst_ctdp_display_information_start(outf);
>> - if (max_target_cpus)
>> - for_each_online_target_cpu_in_set(enable_clos_qos_confi
>> g, NULL,
>> - NULL, NULL, &status);
>> + NULL, NULL, &enable);
>> else
>> for_each_online_package_in_set(enable_clos_qos_config,
>> NULL,
>> - NULL, NULL, &status);
>> + NULL, NULL, &enable);
>> isst_ctdp_display_information_end(outf);
>> }
>>
>> @@ -1109,7 +1062,7 @@ static void dump_clos_config_for_cpu(int cpu,
>> void *arg1, void *arg2,
>> &clos_config);
>> }
>>
>> -static void dump_clos_config(void)
>> +static void dump_clos_config(int arg)
>> {
>> if (cmd_help) {
>> fprintf(stderr,
>> @@ -1145,7 +1098,7 @@ static void get_clos_info_for_cpu(int cpu, void
>> *arg1, void *arg2, void *arg3,
>> isst_clos_display_clos_information(cpu, outf, enable,
>> prio_type);
>> }
>>
>> -static void dump_clos_info(void)
>> +static void dump_clos_info(int arg)
>> {
>> if (cmd_help) {
>> fprintf(stderr,
>> @@ -1188,7 +1141,7 @@ static void set_clos_config_for_cpu(int cpu,
>> void *arg1, void *arg2, void *arg3,
>> isst_display_result(cpu, outf, "core-power", "config",
>> ret);
>> }
>>
>> -static void set_clos_config(void)
>> +static void set_clos_config(int arg)
>> {
>> if (cmd_help) {
>> fprintf(stderr,
>> @@ -1252,7 +1205,7 @@ static void set_clos_assoc_for_cpu(int cpu,
>> void *arg1, void *arg2, void *arg3,
>> isst_display_result(cpu, outf, "core-power", "assoc",
>> ret);
>> }
>>
>> -static void set_clos_assoc(void)
>> +static void set_clos_assoc(int arg)
>> {
>> if (cmd_help) {
>> fprintf(stderr, "Associate a clos id to a CPU\n");
>> @@ -1286,7 +1239,7 @@ static void get_clos_assoc_for_cpu(int cpu,
>> void *arg1, void *arg2, void *arg3,
>> isst_clos_display_assoc_information(cpu, outf, clos);
>> }
>>
>> -static void get_clos_assoc(void)
>> +static void get_clos_assoc(int arg)
>> {
>> if (cmd_help) {
>> fprintf(stderr, "Get associate clos id to a CPU\n");
>> @@ -1307,26 +1260,27 @@ static void get_clos_assoc(void)
>> }
>>
>> static struct process_cmd_struct isst_cmds[] = {
>> - { "perf-profile", "get-lock-status", get_tdp_locked },
>> - { "perf-profile", "get-config-levels", get_tdp_levels },
>> - { "perf-profile", "get-config-version", get_tdp_version },
>> - { "perf-profile", "get-config-enabled", get_tdp_enabled },
>> - { "perf-profile", "get-config-current-level",
>> get_tdp_current_level },
>> - { "perf-profile", "set-config-level", set_tdp_level },
>> - { "perf-profile", "info", dump_isst_config },
>> - { "base-freq", "info", dump_pbf_config },
>> - { "base-freq", "enable", set_pbf_enable },
>> - { "base-freq", "disable", set_pbf_disable },
>> - { "turbo-freq", "info", dump_fact_config },
>> - { "turbo-freq", "enable", set_fact_enable },
>> - { "turbo-freq", "disable", set_fact_disable },
>> - { "core-power", "info", dump_clos_info },
>> - { "core-power", "enable", set_clos_enable },
>> - { "core-power", "disable", set_clos_disable },
>> - { "core-power", "config", set_clos_config },
>> - { "core-power", "get-config", dump_clos_config },
>> - { "core-power", "assoc", set_clos_assoc },
>> - { "core-power", "get-assoc", get_clos_assoc },
>> + { "perf-profile", "get-lock-status", get_tdp_locked, 0 },
>> + { "perf-profile", "get-config-levels", get_tdp_levels, 0 },
>> + { "perf-profile", "get-config-version", get_tdp_version, 0 },
>> + { "perf-profile", "get-config-enabled", get_tdp_enabled, 0 },
>> + { "perf-profile", "get-config-current-level",
>> get_tdp_current_level,
>> + 0 },
>> + { "perf-profile", "set-config-level", set_tdp_level, 0 },
>> + { "perf-profile", "info", dump_isst_config, 0 },
>> + { "base-freq", "info", dump_pbf_config, 0 },
>> + { "base-freq", "enable", set_pbf_enable, 1 },
>> + { "base-freq", "disable", set_pbf_enable, 0 },
>> + { "turbo-freq", "info", dump_fact_config, 0 },
>> + { "turbo-freq", "enable", set_fact_enable, 1 },
>> + { "turbo-freq", "disable", set_fact_enable, 0 },
>> + { "core-power", "info", dump_clos_info, 0 },
>> + { "core-power", "enable", set_clos_enable, 1 },
>> + { "core-power", "disable", set_clos_enable, 0 },
>> + { "core-power", "config", set_clos_config, 0 },
>> + { "core-power", "get-config", dump_clos_config, 0 },
>> + { "core-power", "assoc", set_clos_assoc, 0 },
>> + { "core-power", "get-assoc", get_clos_assoc, 0 },
>> { NULL, NULL, NULL }
>> };
>>
>> @@ -1571,7 +1525,7 @@ void process_command(int argc, char **argv)
>> if (!strcmp(isst_cmds[i].feature, feature) &&
>> !strcmp(isst_cmds[i].command, cmd)) {
>> parse_cmd_args(argc, optind + 1, argv);
>> - isst_cmds[i].process_fn();
>> + isst_cmds[i].process_fn(isst_cmds[i].arg);
>> matched = 1;
>> break;
>> }
>
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