The test examines if running spinners do not interfere with forcewake.
Signed-off-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
---
drivers/gpu/drm/i915/selftests/intel_uncore.c | 85 +++++++++++++++++++
1 file changed, 85 insertions(+)
diff --git a/drivers/gpu/drm/i915/selftests/intel_uncore.c b/drivers/gpu/drm/i915/selftests/intel_uncore.c
index e4281508d5808b..0ce8a5c5ee0064 100644
--- a/drivers/gpu/drm/i915/selftests/intel_uncore.c
+++ b/drivers/gpu/drm/i915/selftests/intel_uncore.c
@@ -22,7 +22,10 @@
*
*/
+#include <i915_gpu_error.h>
+#include <gt/intel_gpu_commands.h>
#include "../i915_selftest.h"
+#include <selftests/igt_spinner.h>
static int intel_fw_table_check(const struct intel_forcewake_range *ranges,
unsigned int num_ranges,
@@ -342,12 +345,94 @@ static int live_fw_table(void *arg)
GRAPHICS_VER(gt->i915) >= 9);
}
+static int live_forcewake_with_spinners(void *arg)
+{
+ struct intel_gt *gt = arg;
+ struct intel_uncore_forcewake_domain *domain;
+ struct intel_engine_cs *engine;
+ enum intel_engine_id id;
+ intel_wakeref_t wakeref;
+ struct igt_spinner spin;
+ unsigned int tmp;
+ int err;
+
+ wakeref = intel_runtime_pm_get(gt->uncore->rpm);
+
+ err = igt_spinner_init(&spin, gt);
+ if (err)
+ goto err_rpm;
+
+ for_each_engine(engine, gt, id) {
+ struct intel_context *ce;
+ struct i915_request *rq;
+
+ if (!intel_engine_can_store_dword(engine))
+ continue;
+
+ pr_info("%s: Spinning %s\n", __func__, engine->name);
+
+ ce = intel_context_create(engine);
+ if (IS_ERR(ce)) {
+ err = PTR_ERR(ce);
+ goto err_spin;
+ }
+ rq = igt_spinner_create_request(&spin, ce, MI_ARB_CHECK);
+ intel_context_put(ce);
+ if (IS_ERR(rq)) {
+ err = PTR_ERR(rq);
+ goto err_spin;
+ }
+ i915_request_add(rq);
+ }
+
+ intel_uncore_forcewake_get(gt->uncore, FORCEWAKE_ALL);
+ for_each_fw_domain(domain, gt->uncore, tmp) {
+ if (readl(domain->reg_ack) & FORCEWAKE_KERNEL)
+ continue;
+ pr_err("%s: not acked\n", intel_uncore_forcewake_domain_to_str(domain->id));
+ err = -EINVAL;
+ }
+ if (err) {
+#if defined(CONFIG_DRM_I915_DEBUG_WAKEREF) // Ugly test of presence of intel_klog_error_capture
+ intel_klog_error_capture(gt, (intel_engine_mask_t) ~0U);
+#else
+ pr_err("Time to catch GuC logs.\n");
+ msleep(4000);
+#endif
+ }
+ msleep(3);
+ intel_uncore_forcewake_put(gt->uncore, FORCEWAKE_ALL);
+
+err_spin:
+ igt_spinner_fini(&spin);
+err_rpm:
+ intel_runtime_pm_put(gt->uncore->rpm, wakeref);
+
+ return err;
+}
+
+static int live_forcewake_with_spinners_25s(void *arg)
+{
+ ktime_t t = ktime_get();
+ int err = 0;
+
+ while (ktime_ms_delta(ktime_get(), t) < 25000) {
+ err = live_forcewake_with_spinners(arg);
+ if (err)
+ break;
+ }
+
+ return err;
+}
+
int intel_uncore_live_selftests(struct drm_i915_private *i915)
{
static const struct i915_subtest tests[] = {
SUBTEST(live_fw_table),
SUBTEST(live_forcewake_ops),
SUBTEST(live_forcewake_domains),
+ SUBTEST(live_forcewake_with_spinners),
+ SUBTEST(live_forcewake_with_spinners_25s),
};
return intel_gt_live_subtests(tests, to_gt(i915));
--
2.34.1
