drm/i915/gt: Use proper sleeping functions for timeouts shorter than …

…20ms msleep is very imprecise for timeouts shorter than 20 milliseconds and most probably will sleep longer. Use uslee_range() instead. Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com> Reviewed-by: Sebastian Brzezinka <sebastian.brzezinka@intel.com> Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250314021225.11813-5-andi.shyti@linux.intel.com
mariux64 · Mar 19, 2025 · 5ba97b5 · 5ba97b5
1 parent 5bebf80
commit 5ba97b5
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diff --git a/drivers/gpu/drm/i915/gt/selftest_rc6.c b/drivers/gpu/drm/i915/gt/selftest_rc6.c
@@ -60,7 +60,8 @@ int live_rc6_manual(void *arg)
 
 	/* Force RC6 off for starters */
 	__intel_rc6_disable(rc6);
-	msleep(1); /* wakeup is not immediate, takes about 100us on icl */
+	/* wakeup is not immediate, takes about 100us on icl */
+	usleep_range(1000, 2000);
 
 	res[0] = rc6_residency(rc6);
 

diff --git a/drivers/gpu/drm/i915/gt/selftest_tlb.c b/drivers/gpu/drm/i915/gt/selftest_tlb.c
@@ -143,7 +143,7 @@ pte_tlbinv(struct intel_context *ce,
 	if (ce->engine->class == OTHER_CLASS)
 		msleep(200);
 	else
-		msleep(10);
+		usleep_range(10000, 20000);
 
 	if (va == vb) {
 		if (!i915_request_completed(rq)) {