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authorSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>2020-07-01 14:27:18 -0700
committerSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>2020-07-16 10:17:42 -0700
commita85a35fc1d9be7984f052926e42291219ee5ef85 (patch)
tree089ee269b65776d179dd9eeeb507c6727faf9fcb /tools/power
parent6374de848966966bad9472ed3681a069a8db5a6f (diff)
downloadlinux-a85a35fc1d9be7984f052926e42291219ee5ef85.tar.bz2
tools/power/x86/intel-speed-select: Add option to delay mbox commands
Add option "p|--pause" to introduce delay between two mail box commands for test purpose. This delay can be specified in milliseconds. By default there is no delay between two mailbox commands. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Diffstat (limited to 'tools/power')
-rw-r--r--tools/power/x86/intel-speed-select/isst-config.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index 0a5c1744db95..c7b2e6afc7e8 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -44,6 +44,8 @@ static int force_online_offline;
static int auto_mode;
static int fact_enable_fail;
+static int mbox_delay;
+
/* clos related */
static int current_clos = -1;
static int clos_epp = -1;
@@ -788,6 +790,9 @@ int isst_send_mbox_command(unsigned int cpu, unsigned char command,
mbox_cmds.mbox_cmd[0].parameter = parameter;
mbox_cmds.mbox_cmd[0].req_data = req_data;
+ if (mbox_delay)
+ usleep(mbox_delay * 1000);
+
fd = open(pathname, O_RDWR);
if (fd < 0)
err(-1, "%s open failed", pathname);
@@ -2599,6 +2604,7 @@ static void usage(void)
printf("\t[-i|--info] : Print platform information\n");
printf("\t[-o|--out] : Output file\n");
printf("\t\t\tDefault : stderr\n");
+ printf("\t[-p|--pause] : Delay between two mail box commands in milliseconds\n");
printf("\t[-v|--version] : Print version\n");
printf("\nResult format\n");
@@ -2630,6 +2636,7 @@ static void print_version(void)
static void cmdline(int argc, char **argv)
{
const char *pathname = "/dev/isst_interface";
+ char *ptr;
FILE *fp;
int opt;
int option_index = 0;
@@ -2641,6 +2648,7 @@ static void cmdline(int argc, char **argv)
{ "format", required_argument, 0, 'f' },
{ "help", no_argument, 0, 'h' },
{ "info", no_argument, 0, 'i' },
+ { "pause", required_argument, 0, 'p' },
{ "out", required_argument, 0, 'o' },
{ "version", no_argument, 0, 'v' },
{ 0, 0, 0, 0 }
@@ -2694,6 +2702,13 @@ static void cmdline(int argc, char **argv)
fclose(outf);
outf = fopen_or_exit(optarg, "w");
break;
+ case 'p':
+ ret = strtol(optarg, &ptr, 10);
+ if (!ret)
+ fprintf(stderr, "Invalid pause interval, ignore\n");
+ else
+ mbox_delay = ret;
+ break;
case 'v':
print_version();
break;