From patchwork Fri Mar 8 21:59:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Jiang X-Patchwork-Id: 13587318 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 0027E5CDC9; Fri, 8 Mar 2024 22:01:49 +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=1709935310; cv=none; b=lgGtzXby7z1M0D/SNwWRSfvKvfIpVU0KUOdjOCVci333gI7AEb5nZLAXXSdiADuyzHsdHx1q9KIKel5KxC5pzu4haYtHm5B5siubxgR1v6JPcE/ga193+nYOS2ziaEWkxh0x0gVWfcevg48ul2QsuJfa35SEy7tLk+QWdfkEnWA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709935310; c=relaxed/simple; bh=geh/NoNTjRBdF55Ayfusi3WYtHsbepil0b/tcg8sUEg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VlaEv17gjQHYdfLUqo9gXtQcvI2oeuNRBuHvJKiG1F6CH+CuXZBadjaWh98Tezu4gl+9f7mElSg948cIp4nKlNPAciAENQFA/U3coNJhZJp2lhZghi/CjbvYFiFLLnAwUtFvQ8/qYtjtY5BzblbDzp0L4L//Zzb7D9e4r2641qA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 010E9C433C7; Fri, 8 Mar 2024 22:01:48 +0000 (UTC) From: Dave Jiang To: linux-cxl@vger.kernel.org, linux-acpi@vger.kernel.org Cc: dan.j.williams@intel.com, ira.weiny@intel.com, vishal.l.verma@intel.com, alison.schofield@intel.com, Jonathan.Cameron@huawei.com, dave@stgolabs.net, rafael@kernel.org, gregkh@linuxfoundation.org, Jonathan Cameron Subject: [PATCH v7 07/12] cxl: Move QoS class to be calculated from the nearest CPU Date: Fri, 8 Mar 2024 14:59:26 -0700 Message-ID: <20240308220055.2172956-8-dave.jiang@intel.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240308220055.2172956-1-dave.jiang@intel.com> References: <20240308220055.2172956-1-dave.jiang@intel.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Retrieve the qos_class (QTG ID) using the access coordinates from the nearest CPU rather than the nearst initiator that may not be a CPU. This may be the more appropriate number that applications care about. For most cases, access0 and access1 have the same values. Link: https://lore.kernel.org/linux-cxl/20240112113023.00006c50@Huawei.com/ Suggested-by: Jonathan Cameron Reviewed-by: Jonathan Cameron Tested-by: Jonathan Cameron Signed-off-by: Dave Jiang --- drivers/cxl/core/cdat.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/cxl/core/cdat.c b/drivers/cxl/core/cdat.c index 04dfda9d1f1b..02e97a90a43c 100644 --- a/drivers/cxl/core/cdat.c +++ b/drivers/cxl/core/cdat.c @@ -198,12 +198,12 @@ static int cxl_port_perf_data_calculate(struct cxl_port *port, * coordinates in order to allow calculation of access class * 0 and 1 for region later. */ - cxl_coordinates_combine(&coord[ACCESS_COORDINATE_LOCAL], - &coord[ACCESS_COORDINATE_LOCAL], + cxl_coordinates_combine(&coord[ACCESS_COORDINATE_CPU], + &coord[ACCESS_COORDINATE_CPU], &dent->coord); dent->entries = 1; rc = cxl_root->ops->qos_class(cxl_root, - &coord[ACCESS_COORDINATE_LOCAL], + &coord[ACCESS_COORDINATE_CPU], 1, &qos_class); if (rc != 1) continue;