From patchwork Thu May 6 19:32:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhaumik Bhatt X-Patchwork-Id: 432443 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F1F7C43460 for ; Thu, 6 May 2021 19:33:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 612606103E for ; Thu, 6 May 2021 19:33:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235243AbhEFTed (ORCPT ); Thu, 6 May 2021 15:34:33 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:63499 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235386AbhEFTe0 (ORCPT ); Thu, 6 May 2021 15:34:26 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1620329607; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=Q3g/jWIddxs6pYbp2dd0legUkJacIL9kKHwbctWLKUc=; b=XBRv1Al6JnULpZpyM432VfNG8GfpmVG8TQ1ULTmccY4PuvyQC3KdpbmSZTxRQi/BrAD5GfV7 dbXu/P0s0A4KCd7MrXDk3h1M5TCC9yXjsaHQK+hJvbVIBA02rS8wEnHSZfvQx4cpRQL4i1Ho bsX8x9OV/4Qn16Zabrc1S/CZCD8= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n03.prod.us-east-1.postgun.com with SMTP id 60944478853c0a2c461d2dc3 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Thu, 06 May 2021 19:33:12 GMT Sender: bbhatt=qti.qualcomm.com@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 761E2C4338A; Thu, 6 May 2021 19:33:11 +0000 (UTC) Received: from malabar-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: bbhatt) by smtp.codeaurora.org (Postfix) with ESMTPSA id B9719C4338A; Thu, 6 May 2021 19:32:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org B9719C4338A Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=pass (p=none dis=none) header.from=qti.qualcomm.com Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=pass smtp.mailfrom=bbhatt@qti.qualcomm.com From: Bhaumik Bhatt To: manivannan.sadhasivam@linaro.org Cc: linux-arm-msm@vger.kernel.org, hemantk@codeaurora.org, jhugo@codeaurora.org, linux-kernel@vger.kernel.org, loic.poulain@linaro.org, linux-wireless@vger.kernel.org, kvalo@codeaurora.org, ath11k@lists.infradead.org, Bhaumik Bhatt Subject: [PATCH v4 3/6] bus: mhi: Add MMIO region length to controller structure Date: Thu, 6 May 2021 12:32:22 -0700 Message-Id: <1620329545-32328-4-git-send-email-bbhatt@qti.qualcomm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1620329545-32328-1-git-send-email-bbhatt@qti.qualcomm.com> References: <1620329545-32328-1-git-send-email-bbhatt@qti.qualcomm.com> Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Bhaumik Bhatt Make controller driver specify the MMIO register region length for range checking of BHI or BHIe space. This can help validate that offsets are in acceptable memory region or not and avoid any boot-up issues due to BHI or BHIe memory accesses. Signed-off-by: Bhaumik Bhatt Reviewed-by: Jeffrey Hugo Reviewed-by: Hemant Kumar --- include/linux/mhi.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/mhi.h b/include/linux/mhi.h index 944aa3a..9c347f5 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -303,6 +303,7 @@ struct mhi_controller_config { * @rddm_size: RAM dump size that host should allocate for debugging purpose * @sbl_size: SBL image size downloaded through BHIe (optional) * @seg_len: BHIe vector size (optional) + * @reg_len: Length of the MHI MMIO region (required) * @fbc_image: Points to firmware image buffer * @rddm_image: Points to RAM dump buffer * @mhi_chan: Points to the channel configuration table @@ -386,6 +387,7 @@ struct mhi_controller { size_t rddm_size; size_t sbl_size; size_t seg_len; + size_t reg_len; struct image_info *fbc_image; struct image_info *rddm_image; struct mhi_chan *mhi_chan;