From patchwork Thu Nov 21 08:47:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ekansh Gupta X-Patchwork-Id: 13881767 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 4C499D75BD7 for ; Thu, 21 Nov 2024 08:47:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C74FB10E8AE; Thu, 21 Nov 2024 08:47:35 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=quicinc.com header.i=@quicinc.com header.b="Xrk7vjRC"; dkim-atps=neutral Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1502210E8AB for ; Thu, 21 Nov 2024 08:47:34 +0000 (UTC) Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4AKKTmAB025897; Thu, 21 Nov 2024 08:47:31 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= 0ZDjre79w6Ut9vpMK9B+Vygi8pBe5Ek99/m2+205Zdc=; b=Xrk7vjRCcE2sarvO xG+Oa0/KWNegPbWJsjt+tflub+zD9I1N9UJdZft4cYM6CL5TddoVLYsHO2V+HbXh 2ta2+YKyRfD91WDpTsocAhwsLOdOcAxf+P1HzD17FA7F9Ep81cib+B42w5h+2RAh 2Oa6AS26qciwZ5yaA9KCpYlDez1wEI1og4bxc97IVEs02glkpHoC4/RUCIiEpDUC pKAJl3ZraZ9YHyqOxdBXZE60ZrCt3O7MSpTleLPEXcTNOgqisgGZne/b7uxBFOyp b76CkoAVcr2sIZ1MP+atq79NSwGxX8RV4HkpI8UMaNoPqu6j/dPtUIIOERMsns9G Gf7J1g== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 431byjkevu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 21 Nov 2024 08:47:30 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA03.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 4AL8lTV8006689 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 21 Nov 2024 08:47:29 GMT Received: from hu-ekangupt-hyd.qualcomm.com (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Thu, 21 Nov 2024 00:47:26 -0800 From: Ekansh Gupta To: , CC: , , , , , Subject: [PATCH v4 1/2] misc: fastrpc: Add support for multiple PD from one process Date: Thu, 21 Nov 2024 14:17:12 +0530 Message-ID: <20241121084713.2599904-2-quic_ekangupt@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241121084713.2599904-1-quic_ekangupt@quicinc.com> References: <20241121084713.2599904-1-quic_ekangupt@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: -Qb1a8e-itsdNcTY_ZMcqRPGsCRHHrXz X-Proofpoint-ORIG-GUID: -Qb1a8e-itsdNcTY_ZMcqRPGsCRHHrXz X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 suspectscore=0 phishscore=0 lowpriorityscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 bulkscore=0 adultscore=0 mlxlogscore=999 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2411210068 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Memory intensive applications(which requires more tha 4GB) that wants to offload tasks to DSP might have to split the tasks to multiple user PD to make the resources available. For every call to DSP, fastrpc driver passes the process tgid which works as an identifier for the DSP to enqueue the tasks to specific PD. With current design, if any process opens device node more than once and makes PD init request, same tgid will be passed to DSP which will be considered a bad request and this will result in failure as the same identifier cannot be used for multiple DSP PD. Assign and pass a client ID to DSP which would be assigned during device open and will be dependent on the index of session allocated for the PD. This will allow the same process to open the device more than once and spawn multiple dynamic PD for ease of processing. Signed-off-by: Ekansh Gupta --- drivers/misc/fastrpc.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index 74181b8c386b..08f223c95c33 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -39,6 +39,7 @@ #define FASTRPC_INIT_HANDLE 1 #define FASTRPC_DSP_UTILITIES_HANDLE 2 #define FASTRPC_CTXID_MASK (0xFF0) +#define FASTRPC_CLIENTID_MASK GENMASK(4, 4) #define INIT_FILELEN_MAX (2 * 1024 * 1024) #define INIT_FILE_NAMELEN_MAX (128) #define FASTRPC_DEVICE_NAME "fastrpc" @@ -299,7 +300,7 @@ struct fastrpc_user { struct fastrpc_session_ctx *sctx; struct fastrpc_buf *init_mem; - int tgid; + int client_id; int pd; bool is_secure_dev; /* Lock for lists */ @@ -614,7 +615,7 @@ static struct fastrpc_invoke_ctx *fastrpc_context_alloc( ctx->sc = sc; ctx->retval = -1; ctx->pid = current->pid; - ctx->tgid = user->tgid; + ctx->tgid = user->client_id; ctx->cctx = cctx; init_completion(&ctx->work); INIT_WORK(&ctx->put_work, fastrpc_context_put_wq); @@ -1115,7 +1116,7 @@ static int fastrpc_invoke_send(struct fastrpc_session_ctx *sctx, int ret; cctx = fl->cctx; - msg->pid = fl->tgid; + msg->pid = fl->client_id; msg->tid = current->pid; if (kernel) @@ -1293,7 +1294,7 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl, } } - inbuf.pgid = fl->tgid; + inbuf.pgid = fl->client_id; inbuf.namelen = init.namelen; inbuf.pageslen = 0; fl->pd = USER_PD; @@ -1395,7 +1396,7 @@ static int fastrpc_init_create_process(struct fastrpc_user *fl, goto err; } - inbuf.pgid = fl->tgid; + inbuf.pgid = fl->client_id; inbuf.namelen = strlen(current->comm) + 1; inbuf.filelen = init.filelen; inbuf.pageslen = 1; @@ -1469,8 +1470,9 @@ static int fastrpc_init_create_process(struct fastrpc_user *fl, } static struct fastrpc_session_ctx *fastrpc_session_alloc( - struct fastrpc_channel_ctx *cctx) + struct fastrpc_user *fl) { + struct fastrpc_channel_ctx *cctx = fl->cctx; struct fastrpc_session_ctx *session = NULL; unsigned long flags; int i; @@ -1480,6 +1482,7 @@ static struct fastrpc_session_ctx *fastrpc_session_alloc( if (!cctx->session[i].used && cctx->session[i].valid) { cctx->session[i].used = true; session = &cctx->session[i]; + fl->client_id = FASTRPC_CLIENTID_MASK | i; break; } } @@ -1504,7 +1507,7 @@ static int fastrpc_release_current_dsp_process(struct fastrpc_user *fl) int tgid = 0; u32 sc; - tgid = fl->tgid; + tgid = fl->client_id; args[0].ptr = (u64)(uintptr_t) &tgid; args[0].length = sizeof(tgid); args[0].fd = -1; @@ -1579,11 +1582,10 @@ static int fastrpc_device_open(struct inode *inode, struct file *filp) INIT_LIST_HEAD(&fl->maps); INIT_LIST_HEAD(&fl->mmaps); INIT_LIST_HEAD(&fl->user); - fl->tgid = current->tgid; fl->cctx = cctx; fl->is_secure_dev = fdevice->secure; - fl->sctx = fastrpc_session_alloc(cctx); + fl->sctx = fastrpc_session_alloc(fl); if (!fl->sctx) { dev_err(&cctx->rpdev->dev, "No session available\n"); mutex_destroy(&fl->mutex); @@ -1647,7 +1649,7 @@ static int fastrpc_dmabuf_alloc(struct fastrpc_user *fl, char __user *argp) static int fastrpc_init_attach(struct fastrpc_user *fl, int pd) { struct fastrpc_invoke_args args[1]; - int tgid = fl->tgid; + int tgid = fl->client_id; u32 sc; args[0].ptr = (u64)(uintptr_t) &tgid; @@ -1803,7 +1805,7 @@ static int fastrpc_req_munmap_impl(struct fastrpc_user *fl, struct fastrpc_buf * int err; u32 sc; - req_msg.pgid = fl->tgid; + req_msg.pgid = fl->client_id; req_msg.size = buf->size; req_msg.vaddr = buf->raddr; @@ -1889,7 +1891,7 @@ static int fastrpc_req_mmap(struct fastrpc_user *fl, char __user *argp) return err; } - req_msg.pgid = fl->tgid; + req_msg.pgid = fl->client_id; req_msg.flags = req.flags; req_msg.vaddr = req.vaddrin; req_msg.num = sizeof(pages); @@ -1978,7 +1980,7 @@ static int fastrpc_req_mem_unmap_impl(struct fastrpc_user *fl, struct fastrpc_me return -EINVAL; } - req_msg.pgid = fl->tgid; + req_msg.pgid = fl->client_id; req_msg.len = map->len; req_msg.vaddrin = map->raddr; req_msg.fd = map->fd; @@ -2031,7 +2033,7 @@ static int fastrpc_req_mem_map(struct fastrpc_user *fl, char __user *argp) return err; } - req_msg.pgid = fl->tgid; + req_msg.pgid = fl->client_id; req_msg.fd = req.fd; req_msg.offset = req.offset; req_msg.vaddrin = req.vaddrin; From patchwork Thu Nov 21 08:47:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ekansh Gupta X-Patchwork-Id: 13881768 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 E3E47D75BD8 for ; Thu, 21 Nov 2024 08:47:39 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7151710E8AB; Thu, 21 Nov 2024 08:47:39 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=quicinc.com header.i=@quicinc.com header.b="Qh1A3DZS"; dkim-atps=neutral Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9E03810E8AB for ; 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Thu, 21 Nov 2024 08:47:34 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 4AL8lXJD012526 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 21 Nov 2024 08:47:33 GMT Received: from hu-ekangupt-hyd.qualcomm.com (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Thu, 21 Nov 2024 00:47:29 -0800 From: Ekansh Gupta To: , CC: , , , , , Subject: [PATCH v4 2/2] misc: fastrpc: Rename tgid and pid to client_id Date: Thu, 21 Nov 2024 14:17:13 +0530 Message-ID: <20241121084713.2599904-3-quic_ekangupt@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241121084713.2599904-1-quic_ekangupt@quicinc.com> References: <20241121084713.2599904-1-quic_ekangupt@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: JIzm28MtTpBheIxjUmQtAJghv7yaW2fZ X-Proofpoint-GUID: JIzm28MtTpBheIxjUmQtAJghv7yaW2fZ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 spamscore=0 mlxlogscore=999 clxscore=1015 suspectscore=0 adultscore=0 priorityscore=1501 phishscore=0 impostorscore=0 bulkscore=0 lowpriorityscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2411210067 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The information passed as request tgid and pid is actually the client id of the process. This client id is used as an identifier by DSP to identify the DSP PD corresponding to the process. Currently process tgid is getting passed as the identifier which is getting replaced by a custom client id. Rename the data which uses this client id. Signed-off-by: Ekansh Gupta --- drivers/misc/fastrpc.c | 48 +++++++++++++++++++++--------------------- 1 file changed, 24 insertions(+), 24 deletions(-) diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index 08f223c95c33..93826de9c191 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -140,14 +140,14 @@ struct fastrpc_mmap_rsp_msg { }; struct fastrpc_mmap_req_msg { - s32 pgid; + s32 client_id; u32 flags; u64 vaddr; s32 num; }; struct fastrpc_mem_map_req_msg { - s32 pgid; + s32 client_id; s32 fd; s32 offset; u32 flags; @@ -157,20 +157,20 @@ struct fastrpc_mem_map_req_msg { }; struct fastrpc_munmap_req_msg { - s32 pgid; + s32 client_id; u64 vaddr; u64 size; }; struct fastrpc_mem_unmap_req_msg { - s32 pgid; + s32 client_id; s32 fd; u64 vaddrin; u64 len; }; struct fastrpc_msg { - int pid; /* process group id */ + int client_id; /* process client id */ int tid; /* thread id */ u64 ctx; /* invoke caller context */ u32 handle; /* handle to invoke */ @@ -235,7 +235,7 @@ struct fastrpc_invoke_ctx { int nbufs; int retval; int pid; - int tgid; + int client_id; u32 sc; u32 *crc; u64 ctxid; @@ -615,7 +615,7 @@ static struct fastrpc_invoke_ctx *fastrpc_context_alloc( ctx->sc = sc; ctx->retval = -1; ctx->pid = current->pid; - ctx->tgid = user->client_id; + ctx->client_id = user->client_id; ctx->cctx = cctx; init_completion(&ctx->work); INIT_WORK(&ctx->put_work, fastrpc_context_put_wq); @@ -1116,11 +1116,11 @@ static int fastrpc_invoke_send(struct fastrpc_session_ctx *sctx, int ret; cctx = fl->cctx; - msg->pid = fl->client_id; + msg->client_id = fl->client_id; msg->tid = current->pid; if (kernel) - msg->pid = 0; + msg->client_id = 0; msg->ctx = ctx->ctxid | fl->pd; msg->handle = handle; @@ -1245,7 +1245,7 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl, int err; bool scm_done = false; struct { - int pgid; + int client_id; u32 namelen; u32 pageslen; } inbuf; @@ -1294,7 +1294,7 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl, } } - inbuf.pgid = fl->client_id; + inbuf.client_id = fl->client_id; inbuf.namelen = init.namelen; inbuf.pageslen = 0; fl->pd = USER_PD; @@ -1364,7 +1364,7 @@ static int fastrpc_init_create_process(struct fastrpc_user *fl, int memlen; int err; struct { - int pgid; + int client_id; u32 namelen; u32 filelen; u32 pageslen; @@ -1396,7 +1396,7 @@ static int fastrpc_init_create_process(struct fastrpc_user *fl, goto err; } - inbuf.pgid = fl->client_id; + inbuf.client_id = fl->client_id; inbuf.namelen = strlen(current->comm) + 1; inbuf.filelen = init.filelen; inbuf.pageslen = 1; @@ -1504,12 +1504,12 @@ static void fastrpc_session_free(struct fastrpc_channel_ctx *cctx, static int fastrpc_release_current_dsp_process(struct fastrpc_user *fl) { struct fastrpc_invoke_args args[1]; - int tgid = 0; + int client_id = 0; u32 sc; - tgid = fl->client_id; - args[0].ptr = (u64)(uintptr_t) &tgid; - args[0].length = sizeof(tgid); + client_id = fl->client_id; + args[0].ptr = (u64)(uintptr_t) &client_id; + args[0].length = sizeof(client_id); args[0].fd = -1; sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_RELEASE, 1, 0); @@ -1649,11 +1649,11 @@ static int fastrpc_dmabuf_alloc(struct fastrpc_user *fl, char __user *argp) static int fastrpc_init_attach(struct fastrpc_user *fl, int pd) { struct fastrpc_invoke_args args[1]; - int tgid = fl->client_id; + int client_id = fl->client_id; u32 sc; - args[0].ptr = (u64)(uintptr_t) &tgid; - args[0].length = sizeof(tgid); + args[0].ptr = (u64)(uintptr_t) &client_id; + args[0].length = sizeof(client_id); args[0].fd = -1; sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_ATTACH, 1, 0); fl->pd = pd; @@ -1805,7 +1805,7 @@ static int fastrpc_req_munmap_impl(struct fastrpc_user *fl, struct fastrpc_buf * int err; u32 sc; - req_msg.pgid = fl->client_id; + req_msg.client_id = fl->client_id; req_msg.size = buf->size; req_msg.vaddr = buf->raddr; @@ -1891,7 +1891,7 @@ static int fastrpc_req_mmap(struct fastrpc_user *fl, char __user *argp) return err; } - req_msg.pgid = fl->client_id; + req_msg.client_id = fl->client_id; req_msg.flags = req.flags; req_msg.vaddr = req.vaddrin; req_msg.num = sizeof(pages); @@ -1980,7 +1980,7 @@ static int fastrpc_req_mem_unmap_impl(struct fastrpc_user *fl, struct fastrpc_me return -EINVAL; } - req_msg.pgid = fl->client_id; + req_msg.client_id = fl->client_id; req_msg.len = map->len; req_msg.vaddrin = map->raddr; req_msg.fd = map->fd; @@ -2033,7 +2033,7 @@ static int fastrpc_req_mem_map(struct fastrpc_user *fl, char __user *argp) return err; } - req_msg.pgid = fl->client_id; + req_msg.client_id = fl->client_id; req_msg.fd = req.fd; req_msg.offset = req.offset; req_msg.vaddrin = req.vaddrin;