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From: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
To: igt-dev@lists.freedesktop.org
Cc: adam.miszczak@linux.intel.com, kamil.konieczny@linux.intel.com,
	lukasz.laguna@intel.com,
	Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Subject: [PATCH i-g-t 1/2] lib/xe/xe_spin: initialize ticks_delta to ~0u
Date: Tue, 28 Jul 2026 12:26:58 +0200	[thread overview]
Message-ID: <20260728102659.316861-2-marcin.bernatowicz@linux.intel.com> (raw)
In-Reply-To: <20260728102659.316861-1-marcin.bernatowicz@linux.intel.com>

Initialize ticks_delta to ~0u instead of 0. This value does not satisfy
the COND_BBE exit condition and prevents false batch termination.

Signed-off-by: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Cc: Adam Miszczak <adam.miszczak@linux.intel.com>
Cc: Kamil Konieczny <kamil.konieczny@linux.intel.com>
Cc: Lukasz Laguna <lukasz.laguna@intel.com>
---
 lib/xe/xe_spin.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/xe/xe_spin.c b/lib/xe/xe_spin.c
index 874310789..331bed1d2 100644
--- a/lib/xe/xe_spin.c
+++ b/lib/xe/xe_spin.c
@@ -60,7 +60,7 @@ void xe_spin_init(struct xe_spin *spin, struct xe_spin_opts *opts)
 	spin->start = 0;
 	spin->end = 0xffffffff;
 	spin->wait_cond = 0;
-	spin->ticks_delta = 0;
+	spin->ticks_delta = ~0u;
 
 	if (opts->ctx_ticks) {
 		/* store start timestamp */
-- 
2.43.0


  reply	other threads:[~2026-07-28 10:28 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-28 10:26 [PATCH i-g-t 0/2] gem_wsim: fix batch premature completion Marcin Bernatowicz
2026-07-28 10:26 ` Marcin Bernatowicz [this message]
2026-07-29  9:42   ` [PATCH i-g-t 1/2] lib/xe/xe_spin: initialize ticks_delta to ~0u Zbigniew Kempczyński
2026-07-28 10:26 ` [PATCH i-g-t 2/2] benchmarks/gem_wsim: re-arm ticks_delta before batch submission Marcin Bernatowicz
2026-07-28 11:53 ` ✓ Xe.CI.BAT: success for gem_wsim: fix batch premature completion Patchwork
2026-07-28 12:07 ` ✓ i915.CI.BAT: " Patchwork
2026-07-28 15:18 ` ✓ Xe.CI.FULL: " Patchwork
2026-07-28 15:45 ` ✗ i915.CI.Full: failure " Patchwork

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