From patchwork Fri Feb 2 00:05:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Danilo Krummrich X-Patchwork-Id: 13541941 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 50B93C4828D for ; Fri, 2 Feb 2024 00:06:20 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B235210E534; Fri, 2 Feb 2024 00:06:15 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="Yt0JbvG5"; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 91D9110E534 for ; Fri, 2 Feb 2024 00:06:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1706832372; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=E3CJiMNs4ugkpjLFrDvRR7BQuWqPEMuBpVE7vPmdHD4=; b=Yt0JbvG5839JBTKy3YuwPOG2dD11Re9iB2opihj2eUTHxT/GHmo0468xjoFzqxzXY1EFih Dl/JnnJqrU5wGAk2KRcAfX3bW8IqUhn+uhk2pg7uJbg0qFlQdTFmOqGBSZXjoomAQJMvAM kt9SNVCU3g8Aw6IWRimLk6/S2DVOxcc= Received: from mail-ej1-f70.google.com (mail-ej1-f70.google.com [209.85.218.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-503-HAQnFISgNIG0HdPY7CQpYg-1; Thu, 01 Feb 2024 19:06:11 -0500 X-MC-Unique: HAQnFISgNIG0HdPY7CQpYg-1 Received: by mail-ej1-f70.google.com with SMTP id a640c23a62f3a-a2f71c83b7eso92745666b.1 for ; Thu, 01 Feb 2024 16:06:10 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706832370; x=1707437170; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=E3CJiMNs4ugkpjLFrDvRR7BQuWqPEMuBpVE7vPmdHD4=; b=l2dffsMmB8wC04SFkfFQBsXi8D0g5IkhZDBLR/02oox4lpvm2WuaJ7kLRf12nsmx9h hjPJvmXKfsVOpFjK/mDtsn+cQ+syACoBsoP5B+OgHT/brerlBqjT1Q94TZT/ZbU9RWgd M9y4wQLXN639ZIGwY46uL2IyXh+wh/GUYerFT5FXywebmQaHGxVC08iFwPNrypfwcx6C UX+kZpf5IpoGqPoM+8uaj52ZSh6PO4jm4KM9YHkqKuGywNV2qFKKr2C8uZnlRVVxCqQL quc1hznFXc/I6lbuy6kzjikmMT+zd9iMzM019MwSndKdamlZQE4biWJu5wGFg4dBFjSB OArQ== X-Gm-Message-State: AOJu0Yz2u9zS2r4mu9GUhMDJeiumhtnb/ZL4rtIjyJX+KqgW8zhE41o5 VMPty4iy3hB8QGs5vJcAkKO1I6F8n2VL7eNRiq/3DibP3TMI+M31CcsZoe7akg/gscVBWJTH0kH +nE53DgZ05HAB5DJSYrtOAlp6UVzj2L3PAnvBSc1JAl4+PM4FJD4R3Q/ofstRh59FPg== X-Received: by 2002:a17:906:f8cd:b0:a35:a71d:81fe with SMTP id lh13-20020a170906f8cd00b00a35a71d81femr2670248ejb.43.1706832369855; Thu, 01 Feb 2024 16:06:09 -0800 (PST) X-Google-Smtp-Source: AGHT+IFWHGhR6q0dC6KwkKvQ+4/Y2FQBr8d6rvG7fkyezcA4RHD3MTUmjFD/7HadrmyFyd8vNpBWiA== X-Received: by 2002:a17:906:f8cd:b0:a35:a71d:81fe with SMTP id lh13-20020a170906f8cd00b00a35a71d81femr2670238ejb.43.1706832369422; Thu, 01 Feb 2024 16:06:09 -0800 (PST) X-Forwarded-Encrypted: i=0; AJvYcCW2KxX1NIB2pd/1K2DpT2qO9jLIH3aYLznMYbo1PpNIa7VpVx8P3B4MfwOLEwwp+EynPTtHzul/JZwWjV7TcmiszyFvuZ+Gw1Cq9FhF8UAN0KEgwTmTSOPmKmD3BW3DIBonztgtVCW0/b5fSGy1H0/ZEpKrmBzgRNHRrSyUgleb9XcIeMcs/DSvLqUmN5N0S1TAowroKu2A6e4= Received: from cassiopeiae.. ([2a02:810d:4b3f:ee94:642:1aff:fe31:a19f]) by smtp.gmail.com with ESMTPSA id s12-20020a170906454c00b00a360eb62afdsm286025ejq.32.2024.02.01.16.06.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Feb 2024 16:06:08 -0800 (PST) From: Danilo Krummrich To: nouveau@lists.freedesktop.org Cc: lyude@redhat.com, kherbst@redhat.com, airlied@gmail.com, ttabi@nvidia.com, dri-devel@lists.freedesktop.org, Danilo Krummrich Subject: [PATCH 1/2] drm/nouveau: don't fini scheduler if not initialized Date: Fri, 2 Feb 2024 01:05:50 +0100 Message-ID: <20240202000606.3526-1-dakr@redhat.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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" nouveau_abi16_ioctl_channel_alloc() and nouveau_cli_init() simply call their corresponding *_fini() counterpart. This can lead to nouveau_sched_fini() being called without struct nouveau_sched ever being initialized in the first place. Instead of embedding struct nouveau_sched into struct nouveau_cli and struct nouveau_chan_abi16, allocate struct nouveau_sched separately, such that we can check for the corresponding pointer to be NULL in the particular *_fini() functions. It makes sense to allocate struct nouveau_sched separately anyway, since in a subsequent commit we can also avoid to allocate a struct nouveau_sched in nouveau_abi16_ioctl_channel_alloc() at all, if the VM_BIND uAPI has been disabled due to the legacy uAPI being used. Fixes: 5f03a507b29e ("drm/nouveau: implement 1:1 scheduler - entity relationship") Reported-by: Timur Tabi Closes: https://lore.kernel.org/nouveau/20240131213917.1545604-1-ttabi@nvidia.com/ Signed-off-by: Danilo Krummrich Reviewed-by: Dave Airlie --- drivers/gpu/drm/nouveau/nouveau_abi16.c | 10 ++++--- drivers/gpu/drm/nouveau/nouveau_abi16.h | 2 +- drivers/gpu/drm/nouveau/nouveau_drm.c | 7 +++-- drivers/gpu/drm/nouveau/nouveau_drv.h | 2 +- drivers/gpu/drm/nouveau/nouveau_exec.c | 2 +- drivers/gpu/drm/nouveau/nouveau_sched.c | 38 +++++++++++++++++++++++-- drivers/gpu/drm/nouveau/nouveau_sched.h | 6 ++-- drivers/gpu/drm/nouveau/nouveau_uvmm.c | 2 +- 8 files changed, 53 insertions(+), 16 deletions(-) base-commit: 041261ac4c365e03b07427569d6735f8adfd21c8 diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c index a04156ca8390..ca4b5ab3e59e 100644 --- a/drivers/gpu/drm/nouveau/nouveau_abi16.c +++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c @@ -128,12 +128,14 @@ nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16, struct nouveau_abi16_ntfy *ntfy, *temp; /* Cancel all jobs from the entity's queue. */ - drm_sched_entity_fini(&chan->sched.entity); + if (chan->sched) + drm_sched_entity_fini(&chan->sched->entity); if (chan->chan) nouveau_channel_idle(chan->chan); - nouveau_sched_fini(&chan->sched); + if (chan->sched) + nouveau_sched_destroy(&chan->sched); /* cleanup notifier state */ list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) { @@ -337,8 +339,8 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS) if (ret) goto done; - ret = nouveau_sched_init(&chan->sched, drm, drm->sched_wq, - chan->chan->dma.ib_max); + ret = nouveau_sched_create(&chan->sched, drm, drm->sched_wq, + chan->chan->dma.ib_max); if (ret) goto done; diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.h b/drivers/gpu/drm/nouveau/nouveau_abi16.h index 1f5e243c0c75..11c8c4a80079 100644 --- a/drivers/gpu/drm/nouveau/nouveau_abi16.h +++ b/drivers/gpu/drm/nouveau/nouveau_abi16.h @@ -26,7 +26,7 @@ struct nouveau_abi16_chan { struct nouveau_bo *ntfy; struct nouveau_vma *ntfy_vma; struct nvkm_mm heap; - struct nouveau_sched sched; + struct nouveau_sched *sched; }; struct nouveau_abi16 { diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 6f6c31a9937b..a947e1d5f309 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -201,7 +201,8 @@ nouveau_cli_fini(struct nouveau_cli *cli) WARN_ON(!list_empty(&cli->worker)); usif_client_fini(cli); - nouveau_sched_fini(&cli->sched); + if (cli->sched) + nouveau_sched_destroy(&cli->sched); if (uvmm) nouveau_uvmm_fini(uvmm); nouveau_vmm_fini(&cli->svm); @@ -311,7 +312,7 @@ nouveau_cli_init(struct nouveau_drm *drm, const char *sname, cli->mem = &mems[ret]; /* Don't pass in the (shared) sched_wq in order to let - * nouveau_sched_init() create a dedicated one for VM_BIND jobs. + * nouveau_sched_create() create a dedicated one for VM_BIND jobs. * * This is required to ensure that for VM_BIND jobs free_job() work and * run_job() work can always run concurrently and hence, free_job() work @@ -320,7 +321,7 @@ nouveau_cli_init(struct nouveau_drm *drm, const char *sname, * locks which indirectly or directly are held for allocations * elsewhere. */ - ret = nouveau_sched_init(&cli->sched, drm, NULL, 1); + ret = nouveau_sched_create(&cli->sched, drm, NULL, 1); if (ret) goto done; diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 8a6d94c8b163..e239c6bf4afa 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -98,7 +98,7 @@ struct nouveau_cli { bool disabled; } uvmm; - struct nouveau_sched sched; + struct nouveau_sched *sched; const struct nvif_mclass *mem; diff --git a/drivers/gpu/drm/nouveau/nouveau_exec.c b/drivers/gpu/drm/nouveau/nouveau_exec.c index bc5d71b79ab2..e65c0ef23bc7 100644 --- a/drivers/gpu/drm/nouveau/nouveau_exec.c +++ b/drivers/gpu/drm/nouveau/nouveau_exec.c @@ -389,7 +389,7 @@ nouveau_exec_ioctl_exec(struct drm_device *dev, if (ret) goto out; - args.sched = &chan16->sched; + args.sched = chan16->sched; args.file_priv = file_priv; args.chan = chan; diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.c b/drivers/gpu/drm/nouveau/nouveau_sched.c index dd98f6910f9c..32fa2e273965 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sched.c +++ b/drivers/gpu/drm/nouveau/nouveau_sched.c @@ -398,7 +398,7 @@ static const struct drm_sched_backend_ops nouveau_sched_ops = { .free_job = nouveau_sched_free_job, }; -int +static int nouveau_sched_init(struct nouveau_sched *sched, struct nouveau_drm *drm, struct workqueue_struct *wq, u32 credit_limit) { @@ -453,7 +453,30 @@ nouveau_sched_init(struct nouveau_sched *sched, struct nouveau_drm *drm, return ret; } -void +int +nouveau_sched_create(struct nouveau_sched **psched, struct nouveau_drm *drm, + struct workqueue_struct *wq, u32 credit_limit) +{ + struct nouveau_sched *sched; + int ret; + + sched = kzalloc(sizeof(*sched), GFP_KERNEL); + if (!sched) + return -ENOMEM; + + ret = nouveau_sched_init(sched, drm, wq, credit_limit); + if (ret) { + kfree(sched); + return ret; + } + + *psched = sched; + + return 0; +} + + +static void nouveau_sched_fini(struct nouveau_sched *sched) { struct drm_gpu_scheduler *drm_sched = &sched->base; @@ -471,3 +494,14 @@ nouveau_sched_fini(struct nouveau_sched *sched) if (sched->wq) destroy_workqueue(sched->wq); } + +void +nouveau_sched_destroy(struct nouveau_sched **psched) +{ + struct nouveau_sched *sched = *psched; + + nouveau_sched_fini(sched); + kfree(sched); + + *psched = NULL; +} diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.h b/drivers/gpu/drm/nouveau/nouveau_sched.h index a6528f5981e6..e1f01a23e6f6 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sched.h +++ b/drivers/gpu/drm/nouveau/nouveau_sched.h @@ -111,8 +111,8 @@ struct nouveau_sched { } job; }; -int nouveau_sched_init(struct nouveau_sched *sched, struct nouveau_drm *drm, - struct workqueue_struct *wq, u32 credit_limit); -void nouveau_sched_fini(struct nouveau_sched *sched); +int nouveau_sched_create(struct nouveau_sched **psched, struct nouveau_drm *drm, + struct workqueue_struct *wq, u32 credit_limit); +void nouveau_sched_destroy(struct nouveau_sched **psched); #endif diff --git a/drivers/gpu/drm/nouveau/nouveau_uvmm.c b/drivers/gpu/drm/nouveau/nouveau_uvmm.c index 4f223c972c6a..0a0a11dc9ec0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_uvmm.c +++ b/drivers/gpu/drm/nouveau/nouveau_uvmm.c @@ -1740,7 +1740,7 @@ nouveau_uvmm_ioctl_vm_bind(struct drm_device *dev, if (ret) return ret; - args.sched = &cli->sched; + args.sched = cli->sched; args.file_priv = file_priv; ret = nouveau_uvmm_vm_bind(&args); From patchwork Fri Feb 2 00:05:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Danilo Krummrich X-Patchwork-Id: 13541942 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 DD590C48286 for ; Fri, 2 Feb 2024 00:06:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AD88810E892; Fri, 2 Feb 2024 00:06:17 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="XgFSjzuI"; 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([2a02:810d:4b3f:ee94:642:1aff:fe31:a19f]) by smtp.gmail.com with ESMTPSA id ld4-20020a1709079c0400b00a3634a461f9sm280359ejc.109.2024.02.01.16.06.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Feb 2024 16:06:12 -0800 (PST) From: Danilo Krummrich To: nouveau@lists.freedesktop.org Cc: lyude@redhat.com, kherbst@redhat.com, airlied@gmail.com, ttabi@nvidia.com, dri-devel@lists.freedesktop.org, Danilo Krummrich Subject: [PATCH 2/2] drm/nouveau: omit to create schedulers using the legacy uAPI Date: Fri, 2 Feb 2024 01:05:51 +0100 Message-ID: <20240202000606.3526-2-dakr@redhat.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240202000606.3526-1-dakr@redhat.com> References: <20240202000606.3526-1-dakr@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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" Omit to create scheduler instances when using the legacy uAPI. When using the legacy NOUVEAU_GEM_PUSHBUF ioctl no scheduler instance is required, hence omit creating scheduler instances in nouveau_abi16_ioctl_channel_alloc(). Signed-off-by: Danilo Krummrich --- drivers/gpu/drm/nouveau/nouveau_abi16.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c index ca4b5ab3e59e..d1bb8151a1df 100644 --- a/drivers/gpu/drm/nouveau/nouveau_abi16.c +++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c @@ -339,10 +339,16 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS) if (ret) goto done; - ret = nouveau_sched_create(&chan->sched, drm, drm->sched_wq, - chan->chan->dma.ib_max); - if (ret) - goto done; + /* If we're not using the VM_BIND uAPI, we don't need a scheduler. + * + * The client lock is already acquired by nouveau_abi16_get(). + */ + if (nouveau_cli_uvmm(cli)) { + ret = nouveau_sched_create(&chan->sched, drm, drm->sched_wq, + chan->chan->dma.ib_max); + if (ret) + goto done; + } init->channel = chan->chan->chid;