[Intel-gfx] [PATCH i-g-t] tests/sysfs: Update timeslice/preemption for new range limits

[John.C.Harrison@Intel.com]

From: John Harrison <John.C.Harrison@Intel.com>

Guc submission imposes new range limits on certain scheduling
parameters. The idempotent sections of the timeslice duration and
pre-emption timeout tests was exceeding those limits and so would fail.

Reduce the excessively large value (654s) to one which does not
overflow (54s). Also add an assert that the write of the new value
actually succeeds.

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
---
 tests/i915/sysfs_preempt_timeout.c    | 4 ++--
 tests/i915/sysfs_timeslice_duration.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tests/i915/sysfs_preempt_timeout.c b/tests/i915/sysfs_preempt_timeout.c
index 515038281638..5e0a7d96299f 100644
--- a/tests/i915/sysfs_preempt_timeout.c
+++ b/tests/i915/sysfs_preempt_timeout.c
@@ -68,7 +68,7 @@ static void set_preempt_timeout(int engine, unsigned int value)
 {
 	unsigned int delay;
 
-	igt_sysfs_printf(engine, ATTR, "%u", value);
+	igt_assert_lte(0, igt_sysfs_printf(engine, ATTR, "%u", value));
 	igt_sysfs_scanf(engine, ATTR, "%u", &delay);
 	igt_assert_eq(delay, value);
 }
@@ -82,7 +82,7 @@ static int wait_for_reset(int fence)
 
 static void test_idempotent(int i915, int engine)
 {
-	unsigned int delays[] = { 0, 1, 1000, 1234, 654321 };
+	unsigned int delays[] = { 0, 1, 1000, 1234, 54321 };
 	unsigned int saved;
 
 	/* Quick test that store/show reports the same values */
diff --git a/tests/i915/sysfs_timeslice_duration.c b/tests/i915/sysfs_timeslice_duration.c
index 8a2f1c2f2ece..95dc377785a5 100644
--- a/tests/i915/sysfs_timeslice_duration.c
+++ b/tests/i915/sysfs_timeslice_duration.c
@@ -79,7 +79,7 @@ static void set_timeslice(int engine, unsigned int value)
 {
 	unsigned int delay;
 
-	igt_sysfs_printf(engine, ATTR, "%u", value);
+	igt_assert_lte(0, igt_sysfs_printf(engine, ATTR, "%u", value));
 	igt_sysfs_scanf(engine, ATTR, "%u", &delay);
 	igt_assert_eq(delay, value);
 }
@@ -93,7 +93,7 @@ static int wait_for_reset(int fence)
 
 static void test_idempotent(int i915, int engine)
 {
-	const unsigned int delays[] = { 0, 1, 1234, 654321 };
+	const unsigned int delays[] = { 0, 1, 1234, 54321 };
 	unsigned int saved;
 
 	/* Quick test to verify the kernel reports the same values as we write */
-- 
2.37.3