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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 95CADC433E0 for ; Thu, 9 Jul 2020 11:59:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 700F12076A for ; Thu, 9 Jul 2020 11:59:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="zDb2DpIw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727828AbgGIL7C (ORCPT ); Thu, 9 Jul 2020 07:59:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51552 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727028AbgGIL7B (ORCPT ); Thu, 9 Jul 2020 07:59:01 -0400 Received: from mail-wm1-x343.google.com (mail-wm1-x343.google.com [IPv6:2a00:1450:4864:20::343]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0D7F0C08C5CE for ; Thu, 9 Jul 2020 04:59:01 -0700 (PDT) Received: by mail-wm1-x343.google.com with SMTP id o2so1512347wmh.2 for ; Thu, 09 Jul 2020 04:59:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=60WfY+m9rAT3c40Anjh0dgZrb+4tb57pCpohXHwky7M=; b=zDb2DpIwU3L53HsRgS/+PlDUuvCyut3NQ0S0RlY9MO5td14XWI1SaXbeH+esMYCy6s gUQLS9rpt2yFJPaeIegIjMQpzHhlpb/XxMEwpwT7NuIEzRhkk3ysklzzGlrYG5F2RG0j WK+T7uIhP8tEX4GB0Bm11CLRNR/u2RNJH3GFsdLrP3/s7kKnwEUMYBMMcME6MRhL6HL6 Y1DJ1WkGFUbkKS1c/P5nredeIfPvacuDQdSsq63syyPbX7TptFrcrP3+XPyPiDscPu9b ygc6yeCh6idE/5y+yU87lpNfEhazSM1ssMNsSIYCItfHzbp7hZjxQf4vNXTLdo/1iOiU /UlA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=60WfY+m9rAT3c40Anjh0dgZrb+4tb57pCpohXHwky7M=; b=LB8cPIkWw5vPBefeSp18/LBRDPdhSu3pVsbg4OBWwM3FG/FxmsZrAqmwjFPnk0atwR jkYZs2cyIqKAaNLWcIRQAtrI3CgZZacYVEZcyba9QClOakJPOtlO7xWdTlt7BThTF1zl nWYIdNT89sywBvAlD78xjWiYPHpVB7GzHmBmC0yg44i7R83PqhWgZLSfsLblW6rW5fVd gHG4cFt0I3O4Nko3ajaQ+ZzbrjA+vcEb7/d5GQjAPm8o0BZU7j8DiOWUV0xphZe+z2v1 AHm7oIb4s840nENFlxUSHs8QJUGTAqGXIhHMdu+ZnZ6uFeLE+sIPzg+vzqExZ7n39owL u7kw== X-Gm-Message-State: AOAM533PmZYBxWMBY79VB/nQz0K+ibwHwcpGCFaNWr9oNLdoYVuIwz/0 W4kHyrot+9e77Jesm9XvwNa5FA== X-Google-Smtp-Source: ABdhPJyzYeDIv9/PuYMDhLwugLRuG7CeYqHSYkqVlbtq7TwVD/kt5RVit16Iai60khSTCyyzgUw0FA== X-Received: by 2002:a1c:bb03:: with SMTP id l3mr13183337wmf.24.1594295939797; Thu, 09 Jul 2020 04:58:59 -0700 (PDT) Received: from localhost.localdomain (212-5-158-112.ip.btc-net.bg. [212.5.158.112]) by smtp.gmail.com with ESMTPSA id v7sm5140737wrp.45.2020.07.09.04.58.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jul 2020 04:58:59 -0700 (PDT) From: Stanimir Varbanov To: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org Cc: Andy Gross , Bjorn Andersson , Elliot Berman , Stanimir Varbanov Subject: [PATCH 1/2] firmware: qcom_scm: Add memory protect virtual address ranges Date: Thu, 9 Jul 2020 14:58:28 +0300 Message-Id: <20200709115829.8194-2-stanimir.varbanov@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200709115829.8194-1-stanimir.varbanov@linaro.org> References: <20200709115829.8194-1-stanimir.varbanov@linaro.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This adds a new SCM memprotect command to set virtual address ranges. Signed-off-by: Stanimir Varbanov --- drivers/firmware/qcom_scm.c | 24 ++++++++++++++++++++++++ drivers/firmware/qcom_scm.h | 1 + include/linux/qcom_scm.h | 8 +++++++- 3 files changed, 32 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c index 0e7233a20f34..a73870255c2e 100644 --- a/drivers/firmware/qcom_scm.c +++ b/drivers/firmware/qcom_scm.c @@ -864,6 +864,30 @@ int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz, } EXPORT_SYMBOL(qcom_scm_assign_mem); +int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size, + u32 cp_nonpixel_start, + u32 cp_nonpixel_size) +{ + int ret; + struct qcom_scm_desc desc = { + .svc = QCOM_SCM_SVC_MP, + .cmd = QCOM_SCM_MP_VIDEO_VAR, + .arginfo = QCOM_SCM_ARGS(4, QCOM_SCM_VAL, QCOM_SCM_VAL, + QCOM_SCM_VAL, QCOM_SCM_VAL), + .args[0] = cp_start, + .args[1] = cp_size, + .args[2] = cp_nonpixel_start, + .args[3] = cp_nonpixel_size, + .owner = ARM_SMCCC_OWNER_SIP, + }; + struct qcom_scm_res res; + + ret = qcom_scm_call(__scm->dev, &desc, &res); + + return ret ? : res.result[0]; +} +EXPORT_SYMBOL(qcom_scm_mem_protect_video_var); + /** * qcom_scm_ocmem_lock_available() - is OCMEM lock/unlock interface available */ diff --git a/drivers/firmware/qcom_scm.h b/drivers/firmware/qcom_scm.h index d9ed670da222..14da834ac593 100644 --- a/drivers/firmware/qcom_scm.h +++ b/drivers/firmware/qcom_scm.h @@ -97,6 +97,7 @@ extern int scm_legacy_call(struct device *dev, const struct qcom_scm_desc *desc, #define QCOM_SCM_MP_RESTORE_SEC_CFG 0x02 #define QCOM_SCM_MP_IOMMU_SECURE_PTBL_SIZE 0x03 #define QCOM_SCM_MP_IOMMU_SECURE_PTBL_INIT 0x04 +#define QCOM_SCM_MP_VIDEO_VAR 0x08 #define QCOM_SCM_MP_ASSIGN 0x16 #define QCOM_SCM_SVC_OCMEM 0x0f diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h index 3d6a24697761..19b5188d17f4 100644 --- a/include/linux/qcom_scm.h +++ b/include/linux/qcom_scm.h @@ -81,7 +81,9 @@ extern int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz, unsigned int *src, const struct qcom_scm_vmperm *newvm, unsigned int dest_cnt); - +extern int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size, + u32 cp_nonpixel_start, + u32 cp_nonpixel_size); extern bool qcom_scm_ocmem_lock_available(void); extern int qcom_scm_ocmem_lock(enum qcom_scm_ocmem_client id, u32 offset, u32 size, u32 mode); @@ -131,6 +133,10 @@ static inline int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare) static inline int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz, unsigned int *src, const struct qcom_scm_vmperm *newvm, unsigned int dest_cnt) { return -ENODEV; } +extern inline int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size, + u32 cp_nonpixel_start, + u32 cp_nonpixel_size) + { return -ENODEV; } static inline bool qcom_scm_ocmem_lock_available(void) { return false; } static inline int qcom_scm_ocmem_lock(enum qcom_scm_ocmem_client id, u32 offset, -- 2.17.1