From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3C376CDB484 for ; Wed, 11 Oct 2023 20:09:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=X9QxvWQbilUjZwCeSYcCa+I/u2RvYo3Ebcg8SV5rts8=; b=f/10zQ+aeEilIz 1TJtxqUB2p27h+p2q4gZ+hOlP6/aXidiwJeAiYfpcEnXLSkzB4oPZkaEVNXLmJvD+ucz9BoReoN7n FfL2183ke2sjVL1u0hLdoq8rQaNKNpMGQ2g7xr/Yb1KfvmugUmbCE6qODHnxaZykVaTuz+owUubrd wkuckT7hhCoSYMICs46ax/X4wMHiD5drENI2Z2d7TJApJV0va0QqRf0TVje7rWy34UNKM8Wfkmom8 7wQfRH8jI0j4Lc8YO+pjc857W3s+2Q9Ct7i2A/52XLVHxY9qsoNFjHPKdJBV0jBdpAa3KJOfFjhp4 garN95Ntlr0TauxMYgvA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qqfW9-00GcOG-2p; Wed, 11 Oct 2023 20:09:17 +0000 Received: from mail-wm1-x32b.google.com ([2a00:1450:4864:20::32b]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qqfW6-00GcNt-2x for linux-arm-kernel@lists.infradead.org; Wed, 11 Oct 2023 20:09:16 +0000 Received: by mail-wm1-x32b.google.com with SMTP id 5b1f17b1804b1-405524e6768so3120235e9.2 for ; Wed, 11 Oct 2023 13:09:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1697054951; x=1697659751; darn=lists.infradead.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=fwMSS1JcFEDXpZyiEnSO8zQlyidEp0jlGR2nVT4Z3G4=; b=lElgHQ+pH9da0XzvGSR04hWcgvnAcwYPMUknQUoPU0TDJLoAVkqvxu+IPJ1Wkqmmav Piz0PR9v01Cv0/UdBM+3yFYkh5x668sHyv0/bVWS7Xv14Y2zYx2eR4JeAmkHVU9hABCz QRQaYB93Gi27dX3aXWlQmmYc/7NOlRVqkKUHbB3dRRNYcu7uSicpSBtHUxVz6345fmj0 sdiqLqdvI/VIYRKpu0E9uV8/RTFa+P06AazAB4suOFkFhysiljX+BFecfS8YMRCLteyu h9YswxBd39cQF1WzopKXk5s99luKp9zymwyBv/09Kb7EXtVD0eSmYFNZuX8rV79LopEc XFZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697054951; x=1697659751; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=fwMSS1JcFEDXpZyiEnSO8zQlyidEp0jlGR2nVT4Z3G4=; b=VCXbVTd91ecOh5PB694i2/Oi1RHHhl6tjYsU8Ozdfl/t6T6ZRnmdbJCWE9MbnxwlI9 j7oh7AESPHbu81CS99yT1GAvuwb9MgPfgYngMZqYM18wgvGSOwEUuR35xac5+8bUd+g6 L0qC5+YHAxQ4diZGoJADJhFviTQt/KIniei3CFzFmuLkype8Mwp+R7Q7Z6SZNWaRvMVB VcrdA6aXBUcbL1/3cqYUPqsTVwJSWm2VZYusbVMKOm1fYWsoIdmLYbc/rp1SSq5TK9b/ Zu1RAcfZ4+gtlN86fGXZKosNHwFsq287O6YkXU6eJ0Se3eW0eWqHtCdPitxQT6eIdody PE1A== X-Gm-Message-State: AOJu0YwmOOmZmDFtlhv8DGVe1F14DRl5z70hrDEUu17bkP6KRqDm+Uro s8dGhAwCUWumRmLn9xt71F0= X-Google-Smtp-Source: AGHT+IEva7HvAg6ZLZr8d9XAqhBhRtyp1e9dGG3r81TKlDeAiiMwyzrF9woYU5uAeGS4EgS67jD8bQ== X-Received: by 2002:a1c:720a:0:b0:401:b6f6:d90c with SMTP id n10-20020a1c720a000000b00401b6f6d90cmr20364429wmc.35.1697054950809; Wed, 11 Oct 2023 13:09:10 -0700 (PDT) Received: from ?IPV6:2a02:8071:b783:140:927c:82ba:d32d:99c1? ([2a02:8071:b783:140:927c:82ba:d32d:99c1]) by smtp.gmail.com with ESMTPSA id bd5-20020a05600c1f0500b004030e8ff964sm20163058wmb.34.2023.10.11.13.09.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Oct 2023 13:09:10 -0700 (PDT) Message-ID: <765d393c-4cfe-4f61-a7b4-7fef8c6bf70f@gmail.com> Date: Wed, 11 Oct 2023 22:09:07 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 10/15] firmware: qcom: scm: make qcom_scm_qseecom_app_get_id() use the TZ allocator Content-Language: en-US To: Bartosz Golaszewski , Andy Gross , Bjorn Andersson , Konrad Dybcio , Elliot Berman , Krzysztof Kozlowski , Guru Das Srinagesh , Andrew Halaney , 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 References: <20231009153427.20951-1-brgl@bgdev.pl> <20231009153427.20951-11-brgl@bgdev.pl> From: Maximilian Luz In-Reply-To: <20231009153427.20951-11-brgl@bgdev.pl> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231011_130914_979506_F4EF92A1 X-CRM114-Status: GOOD ( 18.00 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 10/9/23 17:34, Bartosz Golaszewski wrote: > 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 Tested-by: Maximilian Luz I've tested the whole series with both QCOM_TZMEM_MODE_DEFAULT and QCOM_TZMEM_MODE_SHMBRIDGE. Everything seems to work fine on my Surface Pro X (sc8180x), but I've only really tested the qseecom-related parts (hence my TB only for those). I'll try to do a proper review of the two qseecom patches in the next couple of days. > --- > 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; _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel