From patchwork Fri Oct 13 11:48:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 733418 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 7C25ACDB482 for ; Fri, 13 Oct 2023 11:49:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231556AbjJMLtV (ORCPT ); Fri, 13 Oct 2023 07:49:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231563AbjJMLtL (ORCPT ); Fri, 13 Oct 2023 07:49:11 -0400 Received: from mail-wm1-x331.google.com (mail-wm1-x331.google.com [IPv6:2a00:1450:4864:20::331]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8CA45E5 for ; Fri, 13 Oct 2023 04:49:04 -0700 (PDT) Received: by mail-wm1-x331.google.com with SMTP id 5b1f17b1804b1-405524e6769so12849755e9.1 for ; Fri, 13 Oct 2023 04:49:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1697197743; x=1697802543; 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=R1+SqUu3MEUpRvP0zkJ91SMCh/hUg62w85Orn9bNfZQ=; b=iiC4B+4BMLo8n0lvIhn4Pqn5G9B5rg/KkSUXId0vkYWVj+p9Aannl4x7fTxkxd+ig+ ipt07JwXCtDVfBegfW4GzCyeejHtFJ9J4YSzLxCT/yg+4jPLqJGLS3rd1gav+8hKpUzv XKFYZXjYQpDK853jUbmItDr6A7XBpGVTzI/5TrUVXmLm7UhleFmPbnZdorgDqTR2tCYC 440YeCyYJk3MBVvxbWb1FT5TnZhZRv1VOqSiKhzkqQv5BdJugj5a9C/CH1VJ79htk8l1 MXyQL+EUEd9ynbj7LcYuTLqHiLLi07IpKqppoIwQLR1ZHsmna1XCRWRDWMvyAlH7Dxf3 qFTg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697197743; x=1697802543; 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=R1+SqUu3MEUpRvP0zkJ91SMCh/hUg62w85Orn9bNfZQ=; b=hB9iv/oATiaCxprn/aVNxqlv2dfoTKVJ+A497LAwRNGWghNv0MNf6rrjaFJgJxADhu EC6fogYHX6m/bXCp3VbJCjUFB/LDZDXL377mB2/CFl8jSUj22h1EQLmjVkXK2TGnQYlK CImmf06jiYmBg7utjs9mAlZPJzvHVmWyPDBgPRg70gM5t2c/Z8dU7w0PuvZLCzv18c5a TPAa8c7aS2dUe7fePsyaIwPLzYjHTQvb3REZq6/FmQIHAaU2vLcvxSSKKsPGrqLSUJAa 9PQ+YRL/975SwPhEVMjtk9KAIqaZb6mTOqXQMA42Nr/8HPH0vVXgXXHBt/Nl5OBIakng betA== X-Gm-Message-State: AOJu0YzPhJst4dxWNU4rrx0RKvtuuV4B3bU6Op6q10jP1iJPDj4Pylbp WmR++ixpH9TMZKlsjm4xywgkkQ== X-Google-Smtp-Source: AGHT+IHDwKNnkQ4WyyEUpEb+olLuPuuRdwsgI6TaMaTMotsUWqpHhmc5CD14COCyN8ypkhuiPDZtdg== X-Received: by 2002:a05:600c:450a:b0:401:c7ec:b930 with SMTP id t10-20020a05600c450a00b00401c7ecb930mr18683731wmo.10.1697197743011; Fri, 13 Oct 2023 04:49:03 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:334:ac00:4209:13a:988d:80be]) by smtp.gmail.com with ESMTPSA id j23-20020a05600c1c1700b00407754b998dsm974509wms.27.2023.10.13.04.49.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Oct 2023 04:49:02 -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 v4 10/15] firmware: qcom: scm: make qcom_scm_qseecom_app_get_id() use the TZ allocator Date: Fri, 13 Oct 2023 13:48:38 +0200 Message-Id: <20231013114843.63205-11-brgl@bgdev.pl> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231013114843.63205-1-brgl@bgdev.pl> References: <20231013114843.63205-1-brgl@bgdev.pl> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org 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 --- 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_name, u32 *app_id) unsigned long app_name_len = strlen(app_name); struct qcom_scm_desc desc = {}; struct qcom_scm_qseecom_resp res = {}; - dma_addr_t name_buf_phys; - char *name_buf; int status; if (app_name_len >= name_buf_size) return -EINVAL; - name_buf = kzalloc(name_buf_size, GFP_KERNEL); + char *name_buf __free(qcom_tzmem) = qcom_tzmem_alloc(__scm->mempool, + name_buf_size, + GFP_KERNEL); if (!name_buf) return -ENOMEM; memcpy(name_buf, app_name, app_name_len); - name_buf_phys = dma_map_single(__scm->dev, name_buf, name_buf_size, DMA_TO_DEVICE); - status = 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 = QSEECOM_TZ_OWNER_QSEE_OS; desc.svc = QSEECOM_TZ_SVC_APP_MGR; desc.cmd = QSEECOM_TZ_CMD_APP_LOOKUP; desc.arginfo = QCOM_SCM_ARGS(2, QCOM_SCM_RW, QCOM_SCM_VAL); - desc.args[0] = name_buf_phys; + desc.args[0] = qcom_tzmem_to_phys(name_buf); desc.args[1] = app_name_len; status = qcom_scm_qseecom_call(&desc, &res); - dma_unmap_single(__scm->dev, name_buf_phys, name_buf_size, DMA_TO_DEVICE); - kfree(name_buf); if (status) return status;