From patchwork Mon Oct 9 15:34:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 731088 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC135E95A91 for ; Mon, 9 Oct 2023 15:34:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376862AbjJIPe5 (ORCPT ); Mon, 9 Oct 2023 11:34:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41888 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377005AbjJIPey (ORCPT ); Mon, 9 Oct 2023 11:34:54 -0400 Received: from mail-wr1-x434.google.com (mail-wr1-x434.google.com [IPv6:2a00:1450:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 58A6591 for ; Mon, 9 Oct 2023 08:34:47 -0700 (PDT) Received: by mail-wr1-x434.google.com with SMTP id ffacd0b85a97d-3232be274a0so3475163f8f.1 for ; Mon, 09 Oct 2023 08:34:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1696865686; x=1697470486; 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; bh=GC/5cw5j4gsHJ9iomK+6pv+kPUVJjLbCpiT9I+Feyy0=; b=BnxYVHWCYr5SIblnT1QwjfogTZQYHEBw4fakD7vpch1J+1jg8r4YxWreFnPKqfxwCC /pkacj5HgSLU9UP0IRsEvOyZY5DodAP/OhXWn5NQaqi+R7yGKTlNaEf/RViL7ZLKxINX gm5XPxNjDtjiLhLsNtiqyq2Mh2fFjvtH+en2dPIV4naBdthUxYgQz9wyo1EQaop0IHma hx/YgfzcTL3M5GkmMvvN4mbUdtKTJg12NXpDrjpDVJD1SHFmi7++hFNnJcoWLM9Dmsfv Vkt2KTtKP2ORyUTIltUgUpkk6/AZeHehzP686MFxTVITVEL5E4m2uLjwGwfWRbkcDNQs ampw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696865686; x=1697470486; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=GC/5cw5j4gsHJ9iomK+6pv+kPUVJjLbCpiT9I+Feyy0=; b=TwBZ13Ds8EPA73byC076Ypk+FbD3Jwmt6sdiRG/C/97ZCCXxYDCfXLOuMRyPJyru38 R2edJALNATe0xnh1sp/NZ1BiidD2v1SyRl7ImQmf8l0u1YWXoRrZJDiACht3ld/F0Sss 9JCkcgS0bvwbmfenALYsta+0Qaxk+jIZqKoTiOlPuVh5ril1KOIRP3WjyErYcqE3k8Zf JGWSiY0Eq81+4bk2iUe+ZBNUHJaJpzCKm6qmnTXRiPjbcqHUN/hu57IVefQaIyogOzrN /uHSMJ/cZwyQobUc0dCKJOaRyYORI0SbqtkvmRi6Sf0tM0K3V8E5+gd657V6eSGdRbIx xrLQ== X-Gm-Message-State: AOJu0YzA+S+b0q9vaNc2VRz//5oEE32A9IftCLzTTmsTqWo9PUh29Ec8 6CpZhKlR5iTaWlSMufYqRBqNsQ== X-Google-Smtp-Source: AGHT+IE+HfAWUS8EXGsF6LOscm1uEzgc8ZH16XyVcqAUjQDAcQSh1QPeM3HmQfHBXNvqVn6joVLStQ== X-Received: by 2002:a5d:428b:0:b0:323:3b45:c452 with SMTP id k11-20020a5d428b000000b003233b45c452mr9526845wrq.14.1696865685819; Mon, 09 Oct 2023 08:34:45 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:334:ac00:f20d:2959:7545:e99f]) by smtp.gmail.com with ESMTPSA id b3-20020adff243000000b0031431fb40fasm10016521wrp.89.2023.10.09.08.34.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Oct 2023 08:34:45 -0700 (PDT) From: Bartosz Golaszewski To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Elliot Berman , Krzysztof Kozlowski , Guru Das Srinagesh , Andrew Halaney , Maximilian Luz , Alex Elder , Srini Kandagatla Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@quicinc.com, Bartosz Golaszewski Subject: [PATCH v3 05/15] firmware: qcom: scm: enable the TZ mem allocator Date: Mon, 9 Oct 2023 17:34:17 +0200 Message-Id: <20231009153427.20951-6-brgl@bgdev.pl> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231009153427.20951-1-brgl@bgdev.pl> References: <20231009153427.20951-1-brgl@bgdev.pl> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Bartosz Golaszewski Select the TrustZone memory allocator in Kconfig and create a pool of memory shareable with the TrustZone when probing the SCM driver. This will allow a gradual conversion of all relevant SCM calls to using the dedicated allocator. Signed-off-by: Bartosz Golaszewski --- drivers/firmware/qcom/Kconfig | 1 + drivers/firmware/qcom/qcom_scm.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/drivers/firmware/qcom/Kconfig b/drivers/firmware/qcom/Kconfig index b80269a28224..237da40de832 100644 --- a/drivers/firmware/qcom/Kconfig +++ b/drivers/firmware/qcom/Kconfig @@ -7,6 +7,7 @@ menu "Qualcomm firmware drivers" config QCOM_SCM + select QCOM_TZMEM tristate config QCOM_TZMEM diff --git a/drivers/firmware/qcom/qcom_scm.c b/drivers/firmware/qcom/qcom_scm.c index 520de9b5633a..0d4c028be0c1 100644 --- a/drivers/firmware/qcom/qcom_scm.c +++ b/drivers/firmware/qcom/qcom_scm.c @@ -8,8 +8,10 @@ #include #include #include +#include #include #include +#include #include #include #include @@ -20,9 +22,11 @@ #include #include #include +#include #include #include "qcom_scm.h" +#include "qcom_tzmem.h" static bool download_mode = IS_ENABLED(CONFIG_QCOM_SCM_DOWNLOAD_MODE_DEFAULT); module_param(download_mode, bool, 0); @@ -41,6 +45,8 @@ struct qcom_scm { int scm_vote_count; u64 dload_mode_addr; + + struct qcom_tzmem_pool *mempool; }; struct qcom_scm_current_perm_info { @@ -1887,6 +1893,16 @@ static int qcom_scm_probe(struct platform_device *pdev) if (of_property_read_bool(pdev->dev.of_node, "qcom,sdi-enabled")) qcom_scm_disable_sdi(); + ret = qcom_tzmem_enable(__scm->dev); + if (ret) + return dev_err_probe(__scm->dev, ret, + "Failed to enable the TrustZone memory allocator\n"); + + __scm->mempool = devm_qcom_tzmem_pool_new(__scm->dev, SZ_256K); + if (IS_ERR(__scm->mempool)) + return dev_err_probe(__scm->dev, PTR_ERR(__scm->mempool), + "Failed to create the SCM memory pool\n"); + /* * Initialize the QSEECOM interface. *