From nobody Mon Apr 6 21:33:58 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 CD36BC001B5 for ; Fri, 2 Sep 2022 15:57:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237627AbiIBP52 (ORCPT ); Fri, 2 Sep 2022 11:57:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40520 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237498AbiIBPzm (ORCPT ); Fri, 2 Sep 2022 11:55:42 -0400 Received: from mail-wm1-x32b.google.com (mail-wm1-x32b.google.com [IPv6:2a00:1450:4864:20::32b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E647ECD50E for ; Fri, 2 Sep 2022 08:49:38 -0700 (PDT) Received: by mail-wm1-x32b.google.com with SMTP id v7-20020a1cac07000000b003a6062a4f81so3574446wme.1 for ; Fri, 02 Sep 2022 08:49:38 -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=OADg3UgKowYhLczGEB28pcVY5skR7AiQxx4OTT83oDk=; b=y7Rk8ICnOfrD0j6KSZBIf/1FGs+bqFw3R7YqoVI/qVfeSBtBopi0/B/9M7M/WHGLW9 8sQO11wCSzfNP1xBq9tdohy2EiIva/8zvzo1EryS9C7qpx40njDs5sAakGeFvUGf2FHW XkGLKoG8oXYb5nGTjuKddeuLkC/huZ/9NE4e3gBCUJbF+UxxOZSQvVVwKbTXmER6yQ9Z oI81o8C0YLW6iXwwNKq4JAbgAX05DvfFNaekATfYEFmKY5eFb83t6Rc/v931oaiqhofg sj/2MUki2KlLxxOiMCPTZxQ7dCMj3l0Es+r+5cNavdWqTjTdytY5fykK0ATuYQmAsDVu UkGw== 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=OADg3UgKowYhLczGEB28pcVY5skR7AiQxx4OTT83oDk=; b=skpKDimqyc8EhJOqRgLiV9lGlPd3iZzK8r4SPh1q4BMCe7YXAzTGQpaUvYGrSLONV+ O74AM8haY5YVx/BoZ1hiWsAqQd6KL4RGb0OCJ6qh0vKIq+4TcdOwvnuyqYNS+XqLvfsr N2JJtovt1qNKXillRBxKotpRTXleVo1X2p4gslNF+6w1GPKOEwpSQ+yf5Lu7Qnr3OYVp pHTXfByDk4yap4n9LNW6WL+0bfP1bjzJPNTzJTIuxpbdPOT4pcX/TKJAKJ3Cu5iKqr+h Blo9q9MUcy5zNoDqulQz2iQY81mbFSGOTczm7hBZ1fMVXis0BDJRUIZU7bjnDZaxgb6M QSRA== X-Gm-Message-State: ACgBeo1sIt2iuOsSXXd5uiZdCK4waaOOS83gEpZegkmX6Lvu3pw2LgIm hU7xBWC1dpuJjEh0vHXBbP5t8Q== X-Google-Smtp-Source: AA6agR6DQgD2vikls/B/Z/ovZVSB1zI3rOVFwzeL8kqqj/tMY/Kw364LWUvbox3z8cINk0MdtZIXAQ== X-Received: by 2002:a05:600c:348f:b0:3a5:e28c:a1d5 with SMTP id a15-20020a05600c348f00b003a5e28ca1d5mr3221691wmq.33.1662133777452; Fri, 02 Sep 2022 08:49:37 -0700 (PDT) Received: from hackbox.lan ([94.52.112.99]) by smtp.gmail.com with ESMTPSA id b1-20020a05600010c100b002250f9abdefsm2046741wrx.117.2022.09.02.08.49.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Sep 2022 08:49:37 -0700 (PDT) From: Abel Vesa To: Srinivas Kandagatla , Amol Maheshwari , Andy Gross , Bjorn Andersson , Konrad Dybcio , Ekansh Gupta Cc: Rob Herring , Krzysztof Kozlowski , Arnd Bergmann , Greg Kroah-Hartman , linux-arm-msm@vger.kernel.org, Linux Kernel Mailing List , devicetree@vger.kernel.org Subject: [PATCH v2 09/10] misc: fastrpc: Add mmap request assigning for static PD pool Date: Fri, 2 Sep 2022 18:48:59 +0300 Message-Id: <20220902154900.3404524-10-abel.vesa@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220902154900.3404524-1-abel.vesa@linaro.org> References: <20220902154900.3404524-1-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 41eabdf0a256..66dc71e20e4f 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -1849,8 +1849,9 @@ 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 @@ -1896,6 +1897,22 @@ 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