Why need add rc6_residency_counter subtest case:
RC6 feature support residency counter,from power consumption aspect,
the counter closer to 1,the better.If the counter is < 0.9, the residency
is not good and will impact power consumption value, if the counter is > 1,
sysfs file is inaccurate.
Attach the test result message:
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./pm_rc6_residency
IGT-Version: 1.6-g9a70e29 (x86_64) (Linux:
3.15.0-rc7_drm-intel-nightly_0a37b5_20140604+ x86_64)
Subtest rc6-residency-check: SUCCESS
This machine doesn't support rc6pp
This machine doesn't support rc6p
The residency counter : 0.987000
This machine entry rc6 state.
Subtest rc6-residency-counter: SUCCESS
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#
./pm_rc6_residency --run-subtest rc6-residency-counter
IGT-Version: 1.6-g9a70e29 (x86_64) (Linux:
3.15.0-rc7_drm-intel-nightly_0a37b5_20140604+ x86_64)
This machine doesn't support rc6pp
This machine doesn't support rc6p
The residency counter : 0.987000
This machine entry rc6 state.
Subtest rc6-residency-counter: SUCCESS
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#
./pm_rc6_residency --run-subtest rc6-residency-check
IGT-Version: 1.6-g9a70e29 (x86_64) (Linux:
3.15.0-rc7_drm-intel-nightly_0a37b5_20140604+ x86_64)
Subtest rc6-residency-check: SUCCESS
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#
./pm_rc6_residency --list
rc6-residency-check
rc6-residency-counter
Run as non-root
[haha@x-pk home]$ ./pm_rc6_residency
IGT-Version: 1.6-g18d2130 (x86_64) (Linux:
3.13.0-rc3_drm-intel-nightly_639e4d_20131210+ x86_64)
No intel gpu found
Subtest rc6-residency-check: SKIP
Subtest rc6-residency-counter: SKIP
Run on non-intel platform
[root@x-pk5 home]# ./pm_rc6_residency
IGT-Version: 1.6-g18d2130 (x86_64) (Linux:
3.13.0-rc3_drm-intel-nightly_639e4d_20131210+ x86_64)
Test requirement not met in function read_rc6_residency, file
pm_rc6_residency.c:77:
Last errno: 2, No such file or directory
Test requirement: (!(file))
Subtest rc6-residency-check: SKIP
Subtest rc6-residency-counter: SKIP
Signed-off-by: Wendy Wang <wendy.w...@intel.com>
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index e4c23b3..214c055 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -72,6 +72,7 @@ TESTS_progs_M = \
pm_lpsp \
pm_rpm \
pm_rps \
+ pm_rc6_residency \
prime_self_import \
template \
$(NULL)
@@ -138,7 +139,6 @@ TESTS_progs = \
kms_sink_crc_basic \
kms_fence_pin_leak \
pm_psr \
- pm_rc6_residency \
prime_udl \
$(NULL)
diff --git a/tests/pm_rc6_residency.c b/tests/pm_rc6_residency.c
index 550e3ad..d364369 100644
--- a/tests/pm_rc6_residency.c
+++ b/tests/pm_rc6_residency.c
@@ -38,7 +38,6 @@
#define SLEEP_DURATION 3000 // in milliseconds
#define RC6_FUDGE 900 // in milliseconds
-
static unsigned int readit(const char *path)
{
unsigned int ret;
@@ -60,6 +59,7 @@ static unsigned int readit(const char *path)
static void read_rc6_residency( int value[], const char
*name_of_rc6_residency[])
{
+ unsigned int i;
const int device = drm_get_card();
char *path ;
int ret;
@@ -72,32 +72,33 @@ static void read_rc6_residency( int value[], const char
*name_of_rc6_residency[]
ret = asprintf(&path, "/sys/class/drm/card%d/power/rc6_enable", device);
igt_assert(ret != -1);
- file = fopen(path, "r");//open
+ file = fopen(path, "r");
igt_require(file);
/* claim success if no rc6 enabled. */
if (readit(path) == 0)
igt_success();
- for(unsigned int i = 0; i < 6; i++)
+ for(i = 0; i < 6; i++)
{
if(i == 3)
sleep(SLEEP_DURATION / 1000);
- ret = asprintf(&path,
"/sys/class/drm/card%d/power/%s_residency_ms",device,name_of_rc6_residency[i %
3] );
+ ret = asprintf(&path,
"/sys/class/drm/card%d/power/%s_residency_ms",device,name_of_rc6_residency[i %
3]);
igt_assert(ret != -1);
value[i] = readit(path);
}
free(path);
}
-static void rc6_residency_counter(int value[],const char *
name_of_rc6_residency[])
+static void rc6_residency_counter(int value[],const char
*name_of_rc6_residency[])
{
+ int flag;
unsigned int flag_counter,flag_support;
- double counter_result = 0;
+ double counter_result = 0;
flag_counter = 0;
flag_support = 0;
- for(int flag = NUMBER_OF_RC6_RESIDENCY-1; flag >= 0 ; flag --)
+ for(flag = NUMBER_OF_RC6_RESIDENCY-1; flag >= 0; flag --)
{
unsigned int tmp_counter, tmp_support;
double counter;
@@ -124,11 +125,10 @@ static void rc6_residency_counter(int value[],const char
* name_of_rc6_residency
flag_support = flag_support << 1;
}
- printf("The residency counter : %f \n", counter_result);
+ printf("The residency counter: %f \n", counter_result);
- igt_assert_f(flag_counter != 0 , "The RC6 residency counter is not
good.\n");
- igt_assert_f(flag_support != 0 , "This machine doesn't support any RC6
state!\n");
- igt_assert_f(counter_result <=1 , "Debug files must be wrong \n");
+ igt_skip_on_f(flag_support == 0 , "This machine didn't entry any RC6
state.\n");
+ igt_assert_f((flag_counter != 0) && (counter_result <=1) , "Sysfs RC6
residency counter is inaccurate.\n");
printf("This machine entry %s state.\n",
name_of_rc6_residency[(flag_counter / 2) - 1]);
}
@@ -148,22 +148,23 @@ static void rc6_residency_check(int value[])
igt_main
{
- int value[6];
int fd;
- const char * name_of_rc6_residency[3]={"rc6","rc6p","rc6pp"};
+ int value[6];
+ const char *name_of_rc6_residency[3]={"rc6","rc6p","rc6pp"};
igt_skip_on_simulation();
/* Use drm_open_any to verify device existence */
- fd = drm_open_any();
- close(fd);
+ igt_fixture {
+ fd = drm_open_any();
+ close(fd);
- read_rc6_residency(value, name_of_rc6_residency);
+ read_rc6_residency(value, name_of_rc6_residency);
+ }
igt_subtest("rc6-residency-check")
rc6_residency_check(value);
igt_subtest("rc6-residency-counter")
rc6_residency_counter(value, name_of_rc6_residency);
-
}
--
1.8.3.1
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