From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj2-f4.google.com (mail-pj2-f4.google.com [74.125.227.132]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D635F3E6DE3 for ; Mon, 13 Jul 2026 10:16:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.227.132 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783937775; cv=none; b=VwUQWzVsPFTLhtcRP5iKJ8FYFxtv889qa2aR7WFA4fOuLaxc3J9WABg23/uPB0jVKHc7LaM1O9tKZRhpnhEoFjVUkljpSH8GSIV8dMeS1JgTFSULfrb5ewYdpcyf/ohLH1UBbdDCNt676hgQUX2LkKJFMJneU2Qd99mlyMsEBqc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783937775; c=relaxed/simple; bh=mq4aj/XamaUGePQ75xWTJleNN/w5cVm+bg5zUUVdePg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tIhyTyvLYnWdEDCUQV9R6JxZS3H6mRadTeUL5TMQ7qxyl9+iOSFvTLEF0OsAFS/OazlLLFgWQNm9zb2DwPxhxM64UgjP8dm1Q1gBgLGAEllOr3xTAwc0ySLs3s/d4T0hVCfCGWaiOYEk9+1BWDTtfaO1W/sbaTkYonQ4AQ/Appo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=mHoIZ2iD; arc=none smtp.client-ip=74.125.227.132 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mHoIZ2iD" Received: by mail-pj2-f4.google.com with SMTP id d9443c01a7336-2cc6207127aso15669375ad.1 for ; Mon, 13 Jul 2026 03:16:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1783937773; x=1784542573; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=3Pw/M9cQ/WNEAfuTTS00025CV/d5Oe7obd9EEdA8IR8=; b=mHoIZ2iDfpA1PkBW9yR5K2cRUhiDVUND3QCM8UcOBiKr9MxovrzAq0018Eky3sC9Au enm9XcW5/Z1K+7eRy9r60RXXeiCW35SR9A3OJOLJmJ5de4fag4d1kONShcPLlWkuNQzU 2vnguR6wvZWS+Rbd6Ri0N84cwe7z3yu8gDEdp7DjBwCvlh74EqGxqCfPtKjSOiNQdvuw Ln4pGEno64vNXB5wisxG7qByve4HOqSDUK0L/iKbqzxEuoTN6tiqOJsqIW6L2mRK1KTU dXANC4V+VjIGkudHx1cFqXKkLmR2s0SAcWL+5H5vGN8YtR+b/BOqfv3JmDcN7xZ9Szm3 CSmA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783937773; x=1784542573; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=3Pw/M9cQ/WNEAfuTTS00025CV/d5Oe7obd9EEdA8IR8=; b=ccDpNUvG3G2qHENheV1MzUOhNXJT6AM69IjaBxRCuXl1clMv0WmdTX5orsVjYCVfRk +DjgKfNHIf0doJR8bMPYoBN4OVRDKzKO0SAr2Wvf2Nr9Q/VKW4EZfqbFw4djrL/+wIzL UDrTMokFqKeXsOmYlVfWy5zJKGnchDCeFkKdzqv3Ebpp54tk/xN7HVPFkBaTmw8VUPiv AxUwgGYvaUzz24y0nV8gmG7uW/GW4al2yqtsN2dIcGJ4BJyi3LMonjNbXv8dW/KP6TGX f2edKCFXwdbPyMdqoJ3eRblATBDjUvib78oBM+PlOWcDgj2sUeRi9kRskepaoYDTmU5K r/Bw== X-Forwarded-Encrypted: i=1; AHgh+RqRHEOIYrYD5hOgIj3oCMtd6nVI2f6Mu6Gqw8QpsuA4+oaIDVzmnmNCFaY7LRWLfPTJXhDwRhUGiYmG160=@vger.kernel.org X-Gm-Message-State: AOJu0YyW8DvP0zS6n0C0KhqFNbj/V0mScXf25YJc9W8spzZ0h30eCT+6 zBuk2li2QDiHvij4THdfglIV0tBc1tAluqHBz/Zvlo2n7mKf0AZgI2jT X-Gm-Gg: AfdE7cmOd+YC7BX50g8WnwmAkSZqaTFcTqpbQ8KEj6RVpk3zaZmeMdyVpsKjtSV7jOH r5ryMebrn++J+1jN5T83kfkCaAbnZ1YctoCKUqNT8sEkfZ2H29WcH63X/zDg/kC/gIN7w2UB7YE 9Hu5A5Il9/zAkSK+QnTZ98ffIO9zXtNyYwOBWjDmqKLmIBrnsDPLs4Qfw1WWPC+Ytij08BDkM9D rIetB6OZr+TxMeCbBeyoCop8wRJhPN0I3/MuvHyoe9vwq1aHLHoyQ1Nv0DVcGwDfhCZjhke8BOx NzX87JJBWYr4SIPFLZOkFQbCGy0Yy02bFAzL0NtSX/WaOkh4wWG3tMTLWBmp6ldEDWlVOeL4y0f uuWTNAY3z7K08NWEmqDROmG88HFBCk4R5t/wumS5rjDHmrp9UA7QjtO6tpVClGY7F1tUFuYaeGQ nXXr99KQDkMRylHtilP3E6+pngYZA= X-Received: by 2002:a17:903:2d1:b0:2ca:6c8:abd8 with SMTP id d9443c01a7336-2ce9eabdb67mr74433615ad.12.1783937773073; Mon, 13 Jul 2026 03:16:13 -0700 (PDT) Received: from q-System-Product-Name ([129.227.183.200]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ccc9bdb56fsm98067295ad.15.2026.07.13.03.16.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Jul 2026 03:16:12 -0700 (PDT) From: "Bingyu.Xian" To: Gong Shuai Cc: Tomasz Jeznach , Joerg Roedel , Will Deacon , Robin Murphy , Palmer Dabbelt , Paul Walmsley , Albert Ou , Alexandre Ghiti , iommu@lists.linux.dev, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Quan Zhou Subject: Re: [PATCH v1] iommu/riscv: Add page request queue and IOPF support Date: Mon, 13 Jul 2026 18:15:46 +0800 Message-ID: <20260713101548.1594496-1-shanbeeyoo@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <0c596ea4-8c29-4e5f-8238-cb8f8c5015fc@gmail.com> References: <20260617090116.3254505-1-shanbeeyoo@gmail.com> <0c596ea4-8c29-4e5f-8238-cb8f8c5015fc@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Shuai, Sorry for the delayed reply, and thanks for pointing me to Tomasz's riscv_iommu.next branch. I agree that the PQ/IOPF work in this patch overlaps with Tomasz's ATS/PRI/SVA series. Please consider this patch withdrawn. I will review his branch and coordinate any remaining work with him rather than duplicate the existing implementation. I also agree that the debugfs test helper should not be mixed with the core implementation. If I send follow-up work, I will keep the test helper in a separate patch. Regards, Bingyu