From nobody Mon Apr 6 21:53:57 2026 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 4AB68ECAAD8 for ; Fri, 16 Sep 2022 15:42:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229919AbiIPPl6 (ORCPT ); Fri, 16 Sep 2022 11:41:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33536 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229769AbiIPPli (ORCPT ); Fri, 16 Sep 2022 11:41:38 -0400 Received: from mail-ej1-x632.google.com (mail-ej1-x632.google.com [IPv6:2a00:1450:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 41C37B07D9 for ; Fri, 16 Sep 2022 08:41:29 -0700 (PDT) Received: by mail-ej1-x632.google.com with SMTP id r18so50301540eja.11 for ; Fri, 16 Sep 2022 08:41:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=3rWhpVU0FxYCOEFcDMaJ3/dzkVgGg4KH/F7dataNBvc=; b=WpeV0Sx4Da9Ad4X7fCVSIaKjmwghRQAGsYDw4LogGRg2EdktF9TPMCULNbLzZkw98M aP4HaqOQZ5+GzNQu4Y3aOgQP8w47XIPaMhPXPzmT3G7f8kKpTuH/y472OEnOr6KdjihZ 0yPJbavjaDnPAdnxSR/xUZl+pTwMrXmOFNeQbvzvL8Qae3Mr54Rhiv8p6y3iCzzE52IJ 0IfVvsx5KaRkaxLdrNCHjKupiwDL3IASqT+H0G2bfd6xLch/nQu04dYAiWlre3oIjMji butUoFjX70GkEDrVQmyF3GAecppcR0wXzByw9hgzZC2m7kCzd/WehjANL/RNIufBAbOr ktEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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; bh=3rWhpVU0FxYCOEFcDMaJ3/dzkVgGg4KH/F7dataNBvc=; b=K8ER4lT2O3ZTTrbdr2iIB/rns4NJ76PFxU5a7IvobVDxo5Y4KHQ17xEURvy++C10+c uZ6o9bHmxBpGchQfiwBgC8MOThC/epPNy2bKm12qgURvC7lqxvXaevioOWuTkSAU32tX YTtLXar1nDrBydrgoWCI7gcFJBTHDuSRCKI3zSj4Z7Qq2u7Wd+V8oqR7gYuLoixXleuY c+dzOms9GUyv2s/fleIndCR0j97/FViXSnTsl2H3uali23jbe5hl6M02dwzyhcyKw9na BoONjFQ5sWUS7v7I5Qpfy6mnmi6QUmf6mNlMxiJb17xm72KfWdvdgOEW3vw0krsLH0A0 wmVw== X-Gm-Message-State: ACrzQf0vLCnwxNYtToCMQAdQW9fdICYfvhv6cp+qcES8HDvnvP0CV5O6 6BfUM4aOFPVVOpT5k7A8uRQQqw== X-Google-Smtp-Source: AMsMyM5qELENsKyN4y9BUf9rbsxXWYMdsbLMVjZZlNvHHrgUdUHakR00cq8lmIvn8es9TIISjx8Qnw== X-Received: by 2002:a17:907:2c77:b0:77c:59aa:c011 with SMTP id ib23-20020a1709072c7700b0077c59aac011mr4122782ejc.724.1663342887927; Fri, 16 Sep 2022 08:41:27 -0700 (PDT) Received: from hackbox.lan ([94.52.112.99]) by smtp.gmail.com with ESMTPSA id e10-20020a1709062c0a00b0073d638a7a89sm10567707ejh.99.2022.09.16.08.41.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Sep 2022 08:41:26 -0700 (PDT) From: Abel Vesa To: Srinivas Kandagatla , Amol Maheshwari , Ekansh Gupta , Bharath Kumar , Himateja Reddy , Anirudh Raghavendra Cc: Arnd Bergmann , Greg Kroah-Hartman , linux-arm-msm@vger.kernel.org, Linux Kernel Mailing List Subject: [PATCH v4 8/9] misc: fastrpc: Add mmap request assigning for static PD pool Date: Fri, 16 Sep 2022 18:41:01 +0300 Message-Id: <20220916154102.1768088-9-abel.vesa@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220916154102.1768088-1-abel.vesa@linaro.org> References: <20220916154102.1768088-1-abel.vesa@linaro.org> 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" If the mmap request is to add pages and thre are VMIDs associated with that context, do a call to SCM to reassign that memory. Do not do this for remote heap allocation, that is done on init create static process only. Co-developed-by: Srinivas Kandagatla Signed-off-by: Srinivas Kandagatla Signed-off-by: Abel Vesa --- drivers/misc/fastrpc.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index 971d4fc697fa..b45f1285317a 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -1841,8 +1841,9 @@ static int fastrpc_req_mmap(struct fastrpc_user *fl, = char __user *argp) if (copy_from_user(&req, argp, sizeof(req))) return -EFAULT; =20 - if (req.flags !=3D ADSP_MMAP_ADD_PAGES) { + if (req.flags !=3D ADSP_MMAP_ADD_PAGES && req.flags !=3D ADSP_MMAP_REMOTE= _HEAP_ADDR) { dev_err(dev, "flag not supported 0x%x\n", req.flags); + return -EINVAL; } =20 @@ -1888,6 +1889,22 @@ static int fastrpc_req_mmap(struct fastrpc_user *fl,= char __user *argp) /* let the client know the address to use */ req.vaddrout =3D rsp_msg.vaddr; =20 + /* Add memory to static PD pool, protection thru hypervisor */ + if (req.flags !=3D ADSP_MMAP_REMOTE_HEAP_ADDR && fl->cctx->vmcount) { + struct qcom_scm_vmperm perm; + int err =3D 0; + + perm.vmid =3D QCOM_SCM_VMID_HLOS; + perm.perm =3D QCOM_SCM_PERM_RWX; + err =3D qcom_scm_assign_mem(buf->phys, buf->size, + &(fl->cctx->vmperms[0].vmid), &perm, 1); + if (err) { + dev_err(fl->sctx->dev, "Failed to assign memory phys 0x%llx size 0x%llx= err %d", + buf->phys, buf->size, err); + goto err_assign; + } + } + spin_lock(&fl->lock); list_add_tail(&buf->node, &fl->mmaps); spin_unlock(&fl->lock); --=20 2.34.1