From nobody Wed Dec 17 14:01:16 2025 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 E5E9FC4167B for ; Mon, 27 Nov 2023 14:19:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233822AbjK0OTe (ORCPT ); Mon, 27 Nov 2023 09:19:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59398 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233697AbjK0OSt (ORCPT ); Mon, 27 Nov 2023 09:18:49 -0500 Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A2AB3C01 for ; Mon, 27 Nov 2023 06:16:21 -0800 (PST) Received: by mail-wm1-x329.google.com with SMTP id 5b1f17b1804b1-40b472f99a0so6017375e9.3 for ; Mon, 27 Nov 2023 06:16:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1701094580; x=1701699380; 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=WkxpnfZSZT5EN0UFZSvV8zs0Wwv4/j6hiBpdKDk1HxA=; b=0mVI+iDAJgxg6XwiCvCPssrs22QZco0Y19B0HO8OBqq8OdqxNCd9tOFnLG7gwAbscJ 3ZMT3u7CD6oJZKw0giKA1BLhN9ImGSEPZWOs1t7CLy1rcV/lnkSgJn/HpLrlMKDR8Iim XHnBkYlqtG8LHTZ9zjVEFm9A8fvZsdtWshV3FWz7udFhOSS4FjfnE4X8/SKWHFw/sRjN BM93c4lYBvKn1QL2XPyNzToB0Fhinrf+I+9M/6BWuxTy+mIuD8AkmgIYN2DQyPRjXbuU VVS/8mfHEPa4LdIa9FQcoZz8XzEy8t0d2Zt/Hz8mKjUX+wRZaLVlJLH5bJCkjUexkuUh 9uMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701094580; x=1701699380; 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=WkxpnfZSZT5EN0UFZSvV8zs0Wwv4/j6hiBpdKDk1HxA=; b=uF4Ydv7r5doUXY535sMNJw5cHdeYk73AiPJTGzKT+wT3f8Y5yTFKkzTaBROsH4/w8H SKGRV7mT0yK83o9XN5xexHFme0gh1ThS0WmKnkSlVX7D3riaJKv7lzcvx2gXmnJ/uHEz aJjY6jIw2yVMIq7F0KeTDvjoFfI4ewm/xvYDC11M1kgi0kfgA9EhMWj+QTZTy6/0znCB aY+FHm8bKuGr3ZMIRFolZRXv4KTIz5nisgiXV6jstUkLMMA5Y3ReMSBFzu9cCTecCGW2 dYBKR+hT9H8aXawhCGQGHuhh0FS6RSvZmJjx4/+odJkfE87+psunGhRMQ5ZAV2RzZ7Sn BEKQ== X-Gm-Message-State: AOJu0YzXwLw8h/rOZsxnBAGFT28om9ICcFllWEFuk0GGpNYd5HekpxBw gl+v0tQoyA7c1/rpLjMxdK7pQg== X-Google-Smtp-Source: AGHT+IHVgZ20gEmhmev1RX2eoTA9+8mg2/svsRYqUISptDWvOxDB3DOBPlKuaLgRVJ814cwcmx9shQ== X-Received: by 2002:a05:600c:444b:b0:40a:3e41:7df1 with SMTP id v11-20020a05600c444b00b0040a3e417df1mr8884896wmn.37.1701094578887; Mon, 27 Nov 2023 06:16:18 -0800 (PST) Received: from brgl-uxlite.home ([2a01:cb1d:334:ac00:bf33:77c7:8131:5e64]) by smtp.gmail.com with ESMTPSA id be7-20020a05600c1e8700b00405442edc69sm14658830wmb.14.2023.11.27.06.16.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Nov 2023 06:16:18 -0800 (PST) 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 v6 08/13] firmware: qcom: scm: make qcom_scm_qseecom_app_get_id() use the TZ allocator Date: Mon, 27 Nov 2023 15:15:55 +0100 Message-Id: <20231127141600.20929-9-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231127141600.20929-1-brgl@bgdev.pl> References: <20231127141600.20929-1-brgl@bgdev.pl> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski Let's use the new TZ memory allocator to obtain a buffer for this call instead of manually kmalloc()ing it and then mapping to physical space. Signed-off-by: Bartosz Golaszewski Reviewed-by: Andrew Halaney Tested-by: Maximilian Luz Tested-by: Andrew Halaney # sc8280xp-lenovo-thinkpad-= x13s --- drivers/firmware/qcom/qcom_scm.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) diff --git a/drivers/firmware/qcom/qcom_scm.c b/drivers/firmware/qcom/qcom_= scm.c index 11638daa2fe5..3a6cefb4eb2e 100644 --- a/drivers/firmware/qcom/qcom_scm.c +++ b/drivers/firmware/qcom/qcom_scm.c @@ -1525,37 +1525,27 @@ int qcom_scm_qseecom_app_get_id(const char *app_nam= e, u32 *app_id) unsigned long app_name_len =3D strlen(app_name); struct qcom_scm_desc desc =3D {}; struct qcom_scm_qseecom_resp res =3D {}; - dma_addr_t name_buf_phys; - char *name_buf; int status; =20 if (app_name_len >=3D name_buf_size) return -EINVAL; =20 - name_buf =3D kzalloc(name_buf_size, GFP_KERNEL); + char *name_buf __free(qcom_tzmem) =3D qcom_tzmem_alloc(__scm->mempool, + name_buf_size, + GFP_KERNEL); if (!name_buf) return -ENOMEM; =20 memcpy(name_buf, app_name, app_name_len); =20 - name_buf_phys =3D dma_map_single(__scm->dev, name_buf, name_buf_size, DMA= _TO_DEVICE); - status =3D dma_mapping_error(__scm->dev, name_buf_phys); - if (status) { - kfree(name_buf); - dev_err(__scm->dev, "qseecom: failed to map dma address\n"); - return status; - } - desc.owner =3D QSEECOM_TZ_OWNER_QSEE_OS; desc.svc =3D QSEECOM_TZ_SVC_APP_MGR; desc.cmd =3D QSEECOM_TZ_CMD_APP_LOOKUP; desc.arginfo =3D QCOM_SCM_ARGS(2, QCOM_SCM_RW, QCOM_SCM_VAL); - desc.args[0] =3D name_buf_phys; + desc.args[0] =3D qcom_tzmem_to_phys(name_buf); desc.args[1] =3D app_name_len; =20 status =3D qcom_scm_qseecom_call(&desc, &res); - dma_unmap_single(__scm->dev, name_buf_phys, name_buf_size, DMA_TO_DEVICE); - kfree(name_buf); =20 if (status) return status; --=20 2.40.1