[igt-dev] [PATCH i-g-t v5] tests/xe: Verify actual frequency on the basis of GT state
Badal Nilawar
badal.nilawar at intel.com
Wed Jul 19 14:46:29 UTC 2023
When GT is in RC6 actual frequency reported will be 0. So verify actual
on the basic of GT state.
v2:
- Rebased
- Move function xe_is_gt_in_c6, to check rc6 state, to igt_pm library
- Assert if freq reported is not 0 when idle (Ashutosh)
v3:
- Fix review comments (Ashutosh)
v4:
- Move igt_require to igt_main under idle test cases (Ashutosh)
- For idle case wait for C6 instead of usleep (Ashutosh)
v5:
- Remove igt_require from test_freq_range
Fixes: acaaca0bf317 ("tests/xe: Add Xe IGT tests")
Signed-off-by: Badal Nilawar <badal.nilawar at intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit at intel.com>
---
lib/igt_pm.c | 20 +++++++++++++++++
lib/igt_pm.h | 1 +
tests/xe/xe_guc_pc.c | 46 +++++++++++++++++++++++++++++---------
tests/xe/xe_pm_residency.c | 38 ++++++++++---------------------
4 files changed, 69 insertions(+), 36 deletions(-)
diff --git a/lib/igt_pm.c b/lib/igt_pm.c
index ba591f0f8..ccfa5178b 100644
--- a/lib/igt_pm.c
+++ b/lib/igt_pm.c
@@ -1417,3 +1417,23 @@ void igt_pm_ignore_slpc_efficient_freq(int i915, int gtfd, bool val)
igt_require(igt_sysfs_has_attr(gtfd, "slpc_ignore_eff_freq"));
igt_sysfs_set_u32(gtfd, "slpc_ignore_eff_freq", val);
}
+
+/**
+ * xe_is_gt_in_c6:
+ * @fd: pointer to xe drm fd
+ * @gt: gt number
+ *
+ * Check if GT is in C6 state
+ */
+bool xe_is_gt_in_c6(int fd, int gt)
+{
+ char gt_c_state[16];
+ int gt_fd;
+
+ gt_fd = xe_sysfs_gt_open(fd, gt);
+ igt_assert(gt_fd >= 0);
+ igt_assert(igt_sysfs_scanf(gt_fd, "gtidle/idle_status", "%s", gt_c_state) == 1);
+ close(gt_fd);
+
+ return strcmp(gt_c_state, "gt-c6") == 0;
+}
diff --git a/lib/igt_pm.h b/lib/igt_pm.h
index 71ec2f239..2fc7b98a1 100644
--- a/lib/igt_pm.h
+++ b/lib/igt_pm.h
@@ -89,5 +89,6 @@ bool i915_is_slpc_enabled(int drm_fd);
int igt_pm_get_runtime_suspended_time(struct pci_device *pci_dev);
int igt_pm_get_runtime_usage(struct pci_device *pci_dev);
void igt_pm_ignore_slpc_efficient_freq(int i915, int gtfd, bool val);
+bool xe_is_gt_in_c6(int fd, int gt);
#endif /* IGT_PM_H */
diff --git a/tests/xe/xe_guc_pc.c b/tests/xe/xe_guc_pc.c
index c34df8d60..d55790afd 100644
--- a/tests/xe/xe_guc_pc.c
+++ b/tests/xe/xe_guc_pc.c
@@ -218,7 +218,7 @@ static void test_freq_basic_api(int fd, int gt_id)
* Run type: FULL
*/
-static void test_freq_fixed(int fd, int gt_id)
+static void test_freq_fixed(int fd, int gt_id, bool gt_idle)
{
uint32_t rpn = get_freq(fd, gt_id, "rpn");
uint32_t rpe = get_freq(fd, gt_id, "rpe");
@@ -235,13 +235,26 @@ static void test_freq_fixed(int fd, int gt_id)
igt_assert(set_freq(fd, gt_id, "max", rpn) > 0);
usleep(ACT_FREQ_LATENCY_US);
igt_assert(get_freq(fd, gt_id, "cur") == rpn);
- igt_assert(get_freq(fd, gt_id, "act") == rpn);
+
+ if (gt_idle) {
+ /* Wait for GT to go in C6 as previous get_freq wakes up GT*/
+ igt_assert(igt_wait(xe_is_gt_in_c6(fd, gt_id), 1000, 10));
+ igt_assert(get_freq(fd, gt_id, "act") == 0);
+ } else {
+ igt_assert(get_freq(fd, gt_id, "act") == rpn);
+ }
igt_assert(set_freq(fd, gt_id, "min", rpe) > 0);
igt_assert(set_freq(fd, gt_id, "max", rpe) > 0);
usleep(ACT_FREQ_LATENCY_US);
igt_assert(get_freq(fd, gt_id, "cur") == rpe);
- igt_assert(get_freq(fd, gt_id, "act") == rpe);
+
+ if (gt_idle) {
+ igt_assert(igt_wait(xe_is_gt_in_c6(fd, gt_id), 1000, 10));
+ igt_assert(get_freq(fd, gt_id, "act") == 0);
+ } else {
+ igt_assert(get_freq(fd, gt_id, "act") == rpe);
+ }
igt_assert(set_freq(fd, gt_id, "min", rp0) > 0);
igt_assert(set_freq(fd, gt_id, "max", rp0) > 0);
@@ -253,6 +266,11 @@ static void test_freq_fixed(int fd, int gt_id)
*/
igt_assert(get_freq(fd, gt_id, "cur") == rp0);
+ if (gt_idle) {
+ igt_assert(igt_wait(xe_is_gt_in_c6(fd, gt_id), 1000, 10));
+ igt_assert(get_freq(fd, gt_id, "act") == 0);
+ }
+
igt_debug("Finished testing fixed request\n");
}
@@ -266,7 +284,7 @@ static void test_freq_fixed(int fd, int gt_id)
* Run type: FULL
*/
-static void test_freq_range(int fd, int gt_id)
+static void test_freq_range(int fd, int gt_id, bool gt_idle)
{
uint32_t rpn = get_freq(fd, gt_id, "rpn");
uint32_t rpe = get_freq(fd, gt_id, "rpe");
@@ -279,8 +297,14 @@ static void test_freq_range(int fd, int gt_id)
usleep(ACT_FREQ_LATENCY_US);
cur = get_freq(fd, gt_id, "cur");
igt_assert(rpn <= cur && cur <= rpe);
- act = get_freq(fd, gt_id, "act");
- igt_assert(rpn <= act && act <= rpe);
+
+ if (gt_idle) {
+ igt_assert(igt_wait(xe_is_gt_in_c6(fd, gt_id), 1000, 10));
+ igt_assert(get_freq(fd, gt_id, "act") == 0);
+ } else {
+ act = get_freq(fd, gt_id, "act");
+ igt_assert(rpn <= act && act <= rpe);
+ }
igt_debug("Finished testing range request\n");
}
@@ -385,7 +409,8 @@ igt_main
igt_subtest("freq_fixed_idle") {
xe_for_each_gt(fd, gt) {
- test_freq_fixed(fd, gt);
+ igt_require(igt_wait(xe_is_gt_in_c6(fd, gt), 1000, 10));
+ test_freq_fixed(fd, gt, true);
}
}
@@ -398,14 +423,15 @@ igt_main
igt_debug("Execution Finished\n");
}
/* While exec in threads above, let's check the freq */
- test_freq_fixed(fd, gt);
+ test_freq_fixed(fd, gt, false);
igt_waitchildren();
}
}
igt_subtest("freq_range_idle") {
xe_for_each_gt(fd, gt) {
- test_freq_range(fd, gt);
+ igt_require(igt_wait(xe_is_gt_in_c6(fd, gt), 1000, 10));
+ test_freq_range(fd, gt, true);
}
}
@@ -418,7 +444,7 @@ igt_main
igt_debug("Execution Finished\n");
}
/* While exec in threads above, let's check the freq */
- test_freq_range(fd, gt);
+ test_freq_range(fd, gt, false);
igt_waitchildren();
}
}
diff --git a/tests/xe/xe_pm_residency.c b/tests/xe/xe_pm_residency.c
index a20c4449c..5c4516d03 100644
--- a/tests/xe/xe_pm_residency.c
+++ b/tests/xe/xe_pm_residency.c
@@ -28,6 +28,16 @@ const double tolerance = 0.1;
(tol) * 100.0, (tol) * 100.0, \
(double)(ref))
+/**
+ * SUBTEST: gt-c6-on-idle
+ * Description: Validate GT C6 state on idle
+ * Run type: BAT
+ *
+ * SUBTEST: idle-residency
+ * Description: basic residency test to validate idle residency
+ * measured over a time interval is within the tolerance
+ * Run type: FULL
+ */
IGT_TEST_DESCRIPTION("Tests for gtidle properties");
static unsigned int measured_usleep(unsigned int usec)
@@ -45,24 +55,6 @@ static unsigned int measured_usleep(unsigned int usec)
return igt_nsec_elapsed(&ts) / 1000;
}
-/**
- * SUBTEST: gt-c6-on-idle
- * Description: Validate GT C6 state on idle
- * Run type: BAT
- */
-static bool is_gt_in_c6(int fd, int gt)
-{
- char gt_c_state[16];
- int gt_fd;
-
- gt_fd = xe_sysfs_gt_open(fd, gt);
- igt_assert(gt_fd >= 0);
- igt_assert(igt_sysfs_scanf(gt_fd, "gtidle/idle_status", "%s", gt_c_state) == 1);
- close(gt_fd);
-
- return strcmp(gt_c_state, "gt-c6") == 0;
-}
-
static unsigned long read_idle_residency(int fd, int gt)
{
unsigned long residency = 0;
@@ -76,17 +68,11 @@ static unsigned long read_idle_residency(int fd, int gt)
return residency;
}
-/**
- * SUBTEST: idle-residency
- * Description: basic residency test to validate idle residency
- * measured over a time interval is within the tolerance
- * Run type: FULL
- */
static void test_idle_residency(int fd, int gt)
{
unsigned long elapsed_ms, residency_start, residency_end;
- igt_assert_f(igt_wait(is_gt_in_c6(fd, gt), 1000, 1), "GT not in C6\n");
+ igt_assert_f(igt_wait(xe_is_gt_in_c6(fd, gt), 1000, 1), "GT not in C6\n");
residency_start = read_idle_residency(fd, gt);
elapsed_ms = measured_usleep(SLEEP_DURATION * 1000) / 1000;
@@ -110,7 +96,7 @@ igt_main
igt_describe("Validate GT C6 on idle");
igt_subtest("gt-c6-on-idle")
xe_for_each_gt(fd, gt)
- igt_assert_f(igt_wait(is_gt_in_c6(fd, gt), 1000, 1), "GT not in C6\n");
+ igt_assert_f(igt_wait(xe_is_gt_in_c6(fd, gt), 1000, 1), "GT not in C6\n");
igt_describe("Validate idle residency measured over a time interval is within the tolerance");
igt_subtest("idle-residency")
--
2.25.1
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