From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C75723603DE for ; Sat, 28 Feb 2026 17:49:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300978; cv=none; b=Wk43Z7zezm96eA+86ARP9dUf/zk5u/sfD9yF7A8lZJtXE3BkjGwhyVlLysQslFLlonmuGmBQ0vw3ivDm3RPqwQJ5BiJpkqvoQUxF9XES3Vje8oldE4Nn5Q3CxGlOg99v1K+AmUM1EfLAzPn+Wu2XJ7M6OSmCOUOdcSeeQAzL3hs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300978; c=relaxed/simple; bh=wkjov3Hzo0Vq4Io4iYrVXRYTk90SdR+RN2kGZrPpARE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=MQvbPsABm+EcTm2S5HKmtgEruWCkoo0M1n2t0+idox4Wv7kGVJ8Q+NdYstQAYNr6P7q8S/H1JPGkM8+Zp+NfEpf++VqmtFdSqzysVoXKKzaMpHpp/PxsMgFmXHZqqsn8thwut1vWll1iuIMEU1lnP4EpDWGy/sIqvEtmeO2o6J4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XHicSjYX; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="XHicSjYX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 21856C19424; Sat, 28 Feb 2026 17:49:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772300978; bh=wkjov3Hzo0Vq4Io4iYrVXRYTk90SdR+RN2kGZrPpARE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XHicSjYXSYg06gER7acYq7SbqQgx0iU2fCXFEwWLYQvvbaUqqQiP9S3Bxe0IGKDUq W01Xh8792YeTNxWMKoDW7Jod4ip6tzPTIDJ3rLvx7Q7PNOcNrldnBrvgeDscT814qm biHgexVSWWq7iXNwtTV1dzhCFU5AET4Rjzr8phoLE586ebflzTAFTlxfYcacO686hg dNIktG9t0U9wjR/sx+qOhmJ0yuNHrpNkYKSPdSpsW4UBaWEyEjbMqZUUOEbmB+ysXZ NGNKkkwPbX/Gfw499gea3/JpnsKrfENjQlW5r/rpddjUlruOQrvOMDJ7ERSRs9/3LF /oqvNur7H2tUA== From: Sasha Levin To: patches@lists.linux.dev Cc: Himal Prasad Ghimiray , Matthew Brost , =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= , Sasha Levin Subject: [PATCH 6.18 107/752] drm/xe/vm: Skip ufence association for CPU address mirror VMA during MAP Date: Sat, 28 Feb 2026 12:36:58 -0500 Message-ID: <20260228174750.1542406-107-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228174750.1542406-1-sashal@kernel.org> References: <20260228174750.1542406-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Himal Prasad Ghimiray [ Upstream commit 7f08cc5b3cc3bf6416f8b55bff906f67ed75637d ] The MAP operation for a CPU address mirror VMA does not require ufence association because such mappings are not GPU-synchronized and do not participate in GPU job completion signaling. Remove the unnecessary ufence addition for this case to avoid -EBUSY failure in check_ufence of unbind ops. Cc: Matthew Brost Cc: Thomas Hellström Reviewed-by: Matthew Brost Link: https://patch.msgid.link/20251125075628.1182481-6-himal.prasad.ghimiray@intel.com Signed-off-by: Himal Prasad Ghimiray Signed-off-by: Sasha Levin --- drivers/gpu/drm/xe/xe_vm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c index 2444800d0fd35..59ff911f8aad0 100644 --- a/drivers/gpu/drm/xe/xe_vm.c +++ b/drivers/gpu/drm/xe/xe_vm.c @@ -3179,7 +3179,8 @@ static void op_add_ufence(struct xe_vm *vm, struct xe_vma_op *op, { switch (op->base.op) { case DRM_GPUVA_OP_MAP: - vma_add_ufence(op->map.vma, ufence); + if (!xe_vma_is_cpu_addr_mirror(op->map.vma)) + vma_add_ufence(op->map.vma, ufence); break; case DRM_GPUVA_OP_REMAP: if (op->remap.prev) -- 2.51.0