From 5ba97b5925229ab9211c72de7ff40283685876a3 Mon Sep 17 00:00:00 2001 From: Andi Shyti Date: Fri, 14 Mar 2025 03:12:24 +0100 Subject: [PATCH] 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 Reviewed-by: Sebastian Brzezinka Reviewed-by: Krzysztof Karas Link: https://patchwork.freedesktop.org/patch/msgid/20250314021225.11813-5-andi.shyti@linux.intel.com --- drivers/gpu/drm/i915/gt/selftest_rc6.c | 3 ++- drivers/gpu/drm/i915/gt/selftest_tlb.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/selftest_rc6.c b/drivers/gpu/drm/i915/gt/selftest_rc6.c index 27b6d51ef1454..1f8bc5ac20c25 100644 --- 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 index 3941f2d6fa47d..69ed946a39e5c 100644 --- 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)) {