From: Maarten Lankhorst <dev@lankhorst.se>
To: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org, Maarten Lankhorst <dev@lankhorst.se>
Subject: [PATCH v2 4/7] drm/i915/gt: Fix selftests on PREEMPT_RT
Date: Fri, 3 Jul 2026 13:32:56 +0200 [thread overview]
Message-ID: <20260703113259.801374-5-dev@lankhorst.se> (raw)
In-Reply-To: <20260703113259.801374-1-dev@lankhorst.se>
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
---
drivers/gpu/drm/i915/gt/selftest_engine_pm.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/selftest_engine_pm.c b/drivers/gpu/drm/i915/gt/selftest_engine_pm.c
index 10e556a7eac45..c1eff9edd8a5e 100644
--- a/drivers/gpu/drm/i915/gt/selftest_engine_pm.c
+++ b/drivers/gpu/drm/i915/gt/selftest_engine_pm.c
@@ -277,11 +277,11 @@ static int live_engine_busy_stats(void *arg)
st_engine_heartbeat_disable(engine);
ENGINE_TRACE(engine, "measuring idle time\n");
- preempt_disable();
+ migrate_disable();
de = intel_engine_get_busy_time(engine, &t[0]);
udelay(100);
de = ktime_sub(intel_engine_get_busy_time(engine, &t[1]), de);
- preempt_enable();
+ migrate_enable();
dt = ktime_sub(t[1], t[0]);
if (de < 0 || de > 10) {
pr_err("%s: reported %lldns [%d%%] busyness while sleeping [for %lldns]\n",
@@ -316,11 +316,11 @@ static int live_engine_busy_stats(void *arg)
}
ENGINE_TRACE(engine, "measuring busy time\n");
- preempt_disable();
+ migrate_disable();
de = intel_engine_get_busy_time(engine, &t[0]);
mdelay(100);
de = ktime_sub(intel_engine_get_busy_time(engine, &t[1]), de);
- preempt_enable();
+ migrate_enable();
dt = ktime_sub(t[1], t[0]);
if (100 * de < 95 * dt || 95 * de > 100 * dt) {
pr_err("%s: reported %lldns [%d%%] busyness while spinning [for %lldns]\n",
--
2.53.0
next prev parent reply other threads:[~2026-07-03 11:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-03 11:32 [PATCH v2 0/7] drm/i915: All fixes to make i915 work well with PREEMPT_RT Maarten Lankhorst
2026-07-03 11:32 ` [PATCH v2 1/7] drm/i915/gt: Use spin_lock_irq() instead of local_irq_disable() + spin_lock() Maarten Lankhorst
2026-07-03 11:32 ` [PATCH v2 2/7] drm/i915: Drop the irqs_disabled() check Maarten Lankhorst
2026-07-03 11:32 ` [PATCH v2 3/7] drm/i915/guc: Consider also RCU depth in busy loop Maarten Lankhorst
2026-07-03 11:32 ` Maarten Lankhorst [this message]
2026-07-03 11:32 ` [PATCH v2 5/7] drm/i915/gt: Set stop_timeout() correctly on PREEMPT-RT Maarten Lankhorst
2026-07-03 11:32 ` [PATCH v2 6/7] drm/i915: Use sleeping selftests for igt_atomic on PREEMPT_RT Maarten Lankhorst
2026-07-03 11:32 ` [PATCH v2 7/7] drm/i915/gt: Use a spinlock to prevent starvation of irq_work Maarten Lankhorst
2026-07-03 12:35 ` ✗ i915.CI.BAT: failure for drm/i915: All fixes to make i915 work well with PREEMPT_RT. (rev2) Patchwork
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