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X-CSE-ConnectionGUID: BOOkqwJ9QhaKZvcErAy1jQ== X-CSE-MsgGUID: jvZLYHp4TGOwbMVqbcIfzg== X-IronPort-AV: E=McAfee;i="6800,10657,11515"; a="68153568" X-IronPort-AV: E=Sophos;i="6.17,278,1747724400"; d="scan'208";a="68153568" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Aug 2025 06:52:21 -0700 X-CSE-ConnectionGUID: gVHvHxq3SzW2byWIN5LLcw== X-CSE-MsgGUID: 7NQBfY0hQGygQt3TnI1X/g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.17,278,1747724400"; d="scan'208";a="165903763" Received: from smoticic-mobl1.ger.corp.intel.com (HELO fedora) ([10.245.244.28]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Aug 2025 06:52:19 -0700 From: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= To: intel-xe@lists.freedesktop.org Cc: Matthew Brost , =?UTF-8?q?Christian=20K=C3=B6nig?= , dri-devel@lists.freedesktop.org, Jason Gunthorpe , Andrew Morton , Simona Vetter , Dave Airlie , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 4/6] drm/xe: Skip waiting on unarmed fences in xe_gt_tlb_invalidation_fence_wait Date: Sat, 9 Aug 2025 15:51:35 +0200 Message-ID: <20250809135137.259427-5-thomas.hellstrom@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250809135137.259427-1-thomas.hellstrom@linux.intel.com> References: <20250809135137.259427-1-thomas.hellstrom@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Queue-Id: 3F36340005 X-Rspamd-Server: rspam06 X-Stat-Signature: j9xxkof3k4f7iytn9ruc4qioft3g6uf7 X-HE-Tag: 1754747542-951018 X-HE-Meta: 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 LJ9LGP16 bO0frNrQVuINXFSKX9evZD0i1gXwSFH4iqs6OfTlAx8jzp8eIWXn4tU/HrIucahIXNgccI+dmifXurfQsRganCQjZgxZVvp0chWwETuGQ8MwJd7YWvKSJdwVrtTdm3M1ln12AxDTzDUML9JSXw4PPgD/ss5gkIItYFGjTc4zvR+KJqshldOkbua3s1GFRcZO0MbSFq2nxHeSdlsu6OEksjlmbnTQeAd1LdXBqU5DuzslzXca6C4dnwxrOr+aMrErNjdLL X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Matthew Brost Avoids unnecessary waits when the TLB invalidation fence has not been armed, simplifying caller logic in cases where the fence status is uncertain. Signed-off-by: Matthew Brost --- drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h index f7f0f2eaf4b5..c6d4398d3429 100644 --- a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h +++ b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h @@ -34,7 +34,8 @@ void xe_gt_tlb_invalidation_fence_signal(struct xe_gt_tlb_invalidation_fence *fe static inline void xe_gt_tlb_invalidation_fence_wait(struct xe_gt_tlb_invalidation_fence *fence) { - dma_fence_wait(&fence->base, false); + if (fence->seqno) + dma_fence_wait(&fence->base, false); } #endif /* _XE_GT_TLB_INVALIDATION_ */ -- 2.50.1