From patchwork Tue Oct 3 20:44:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gurchetan Singh X-Patchwork-Id: 13407980 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 6488DE8FDB4 for ; Tue, 3 Oct 2023 20:45:35 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qnmGk-0008Bj-6n; Tue, 03 Oct 2023 16:45:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qnmGd-00085L-Q0 for qemu-devel@nongnu.org; Tue, 03 Oct 2023 16:45:20 -0400 Received: from mail-pg1-x535.google.com ([2607:f8b0:4864:20::535]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qnmGT-0004ZQ-Ev for qemu-devel@nongnu.org; Tue, 03 Oct 2023 16:45:19 -0400 Received: by mail-pg1-x535.google.com with SMTP id 41be03b00d2f7-578a62c088cso180826a12.1 for ; Tue, 03 Oct 2023 13:45:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1696365907; x=1696970707; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=IR9BQG2wxNDQ3y7IH88opVdp9fuZFvMZziomIldGb6w=; b=PWyUpov6YHmdH8OcupMuhw4zGDyiwa5VwwBYLrCDLSPWUR00oOg3zPaITZsKYy0EUx LZpS/izw4qhX4tyuSoCULkpROk+Lcg5zSATNXUJotJS2i4oNcHpn6oJkGfXR0bsp03bU jQgESiMdhdKP5oJArV9HQ78ow0dRSfNQGfFtw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696365907; x=1696970707; 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:message-id:reply-to; bh=IR9BQG2wxNDQ3y7IH88opVdp9fuZFvMZziomIldGb6w=; b=SUURHUlryyjzXsI3SPehooXGTIzc2YPf0sm3BYJ9cRDFbGDluayor4iBRMe4O4igzH VdfGFmDHYWSdxl6qIfupFygcGrHFE2DQb0u1RL027+wZ+PqvGR7VGo/M87qwqwH4ELDR XjjBr7Zfheki/1fK6sac6eb4Tpzoxh3XhCrE2iXdQp00D2JOQy4DCIA/M5MjntHzqqLK dEl7ZhrUdy5SlByJEk0j0LcUOV39aRDC5cHLAFiqWMEqCJjz9G0z4bssuN2kbD7oywsf e9rpwIXcCZgFOB+LeXv1zGcgeoZOewRlb2jziMMvr4YR51zH30hDnRNI+7WFPeBKX2wn SwyA== X-Gm-Message-State: AOJu0YxEGgnu7d4oPTTPqHau2pEGHckWHBzCnfVM42wZKexO/cyAU4Ch C78Gvz5I6nvsDrhLGqaKbT5GLTk7704sfC9dBKE= X-Google-Smtp-Source: AGHT+IEkAlIM06Og265VyfJqVKvDRiUvCkVhU/n/1wBLPwWa3Vq7a7psPdKcg+KF8Vzx4KE2H2fRQQ== X-Received: by 2002:a17:90b:1b46:b0:277:3569:29fb with SMTP id nv6-20020a17090b1b4600b00277356929fbmr547512pjb.11.1696365907079; Tue, 03 Oct 2023 13:45:07 -0700 (PDT) Received: from gurchetansingh0.mtv.corp.google.com ([2620:15c:a7:2:9076:49ec:5f9a:e5ec]) by smtp.gmail.com with ESMTPSA id l20-20020a17090aec1400b002777b8fc74bsm3739pjy.21.2023.10.03.13.45.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Oct 2023 13:45:06 -0700 (PDT) From: Gurchetan Singh To: qemu-devel@nongnu.org Cc: marcandre.lureau@redhat.com, akihiko.odaki@gmail.com, ray.huang@amd.com, alex.bennee@linaro.org, shentey@gmail.com, hi@alyssa.is, ernunes@redhat.com, manos.pitsidianakis@linaro.org, mark.cave-ayland@ilande.co.uk, thuth@redhat.com Subject: [PATCH v15 3/9] virtio-gpu: hostmem Date: Tue, 3 Oct 2023 13:44:54 -0700 Message-Id: <20231003204500.518-4-gurchetansingh@chromium.org> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20231003204500.518-1-gurchetansingh@chromium.org> References: <20231003204500.518-1-gurchetansingh@chromium.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::535; envelope-from=gurchetansingh@chromium.org; helo=mail-pg1-x535.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Gerd Hoffmann Use VIRTIO_GPU_SHM_ID_HOST_VISIBLE as id for virtio-gpu. Signed-off-by: Antonio Caggiano Tested-by: Alyssa Ross Tested-by: Akihiko Odaki Tested-by: Huang Rui Acked-by: Huang Rui Acked-by: Michael S. Tsirkin Reviewed-by: Akihiko Odaki --- hw/display/virtio-gpu-pci.c | 14 ++++++++++++++ hw/display/virtio-gpu.c | 1 + hw/display/virtio-vga.c | 33 ++++++++++++++++++++++++--------- include/hw/virtio/virtio-gpu.h | 5 +++++ 4 files changed, 44 insertions(+), 9 deletions(-) diff --git a/hw/display/virtio-gpu-pci.c b/hw/display/virtio-gpu-pci.c index 93f214ff58..da6a99f038 100644 --- a/hw/display/virtio-gpu-pci.c +++ b/hw/display/virtio-gpu-pci.c @@ -33,6 +33,20 @@ static void virtio_gpu_pci_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp) DeviceState *vdev = DEVICE(g); int i; + if (virtio_gpu_hostmem_enabled(g->conf)) { + vpci_dev->msix_bar_idx = 1; + vpci_dev->modern_mem_bar_idx = 2; + memory_region_init(&g->hostmem, OBJECT(g), "virtio-gpu-hostmem", + g->conf.hostmem); + pci_register_bar(&vpci_dev->pci_dev, 4, + PCI_BASE_ADDRESS_SPACE_MEMORY | + PCI_BASE_ADDRESS_MEM_PREFETCH | + PCI_BASE_ADDRESS_MEM_TYPE_64, + &g->hostmem); + virtio_pci_add_shm_cap(vpci_dev, 4, 0, g->conf.hostmem, + VIRTIO_GPU_SHM_ID_HOST_VISIBLE); + } + virtio_pci_force_virtio_1(vpci_dev); if (!qdev_realize(vdev, BUS(&vpci_dev->bus), errp)) { return; diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 93857ad523..5585558855 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -1511,6 +1511,7 @@ static Property virtio_gpu_properties[] = { 256 * MiB), DEFINE_PROP_BIT("blob", VirtIOGPU, parent_obj.conf.flags, VIRTIO_GPU_FLAG_BLOB_ENABLED, false), + DEFINE_PROP_SIZE("hostmem", VirtIOGPU, parent_obj.conf.hostmem, 0), DEFINE_PROP_END_OF_LIST(), }; diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c index e6fb0aa876..c8552ff760 100644 --- a/hw/display/virtio-vga.c +++ b/hw/display/virtio-vga.c @@ -115,17 +115,32 @@ static void virtio_vga_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp) pci_register_bar(&vpci_dev->pci_dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &vga->vram); - /* - * Configure virtio bar and regions - * - * We use bar #2 for the mmio regions, to be compatible with stdvga. - * virtio regions are moved to the end of bar #2, to make room for - * the stdvga mmio registers at the start of bar #2. - */ - vpci_dev->modern_mem_bar_idx = 2; - vpci_dev->msix_bar_idx = 4; vpci_dev->modern_io_bar_idx = 5; + if (!virtio_gpu_hostmem_enabled(g->conf)) { + /* + * Configure virtio bar and regions + * + * We use bar #2 for the mmio regions, to be compatible with stdvga. + * virtio regions are moved to the end of bar #2, to make room for + * the stdvga mmio registers at the start of bar #2. + */ + vpci_dev->modern_mem_bar_idx = 2; + vpci_dev->msix_bar_idx = 4; + } else { + vpci_dev->msix_bar_idx = 1; + vpci_dev->modern_mem_bar_idx = 2; + memory_region_init(&g->hostmem, OBJECT(g), "virtio-gpu-hostmem", + g->conf.hostmem); + pci_register_bar(&vpci_dev->pci_dev, 4, + PCI_BASE_ADDRESS_SPACE_MEMORY | + PCI_BASE_ADDRESS_MEM_PREFETCH | + PCI_BASE_ADDRESS_MEM_TYPE_64, + &g->hostmem); + virtio_pci_add_shm_cap(vpci_dev, 4, 0, g->conf.hostmem, + VIRTIO_GPU_SHM_ID_HOST_VISIBLE); + } + if (!(vpci_dev->flags & VIRTIO_PCI_FLAG_PAGE_PER_VQ)) { /* * with page-per-vq=off there is no padding space we can use diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h index 8377c365ef..de4f624e94 100644 --- a/include/hw/virtio/virtio-gpu.h +++ b/include/hw/virtio/virtio-gpu.h @@ -108,12 +108,15 @@ enum virtio_gpu_base_conf_flags { (_cfg.flags & (1 << VIRTIO_GPU_FLAG_BLOB_ENABLED)) #define virtio_gpu_context_init_enabled(_cfg) \ (_cfg.flags & (1 << VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED)) +#define virtio_gpu_hostmem_enabled(_cfg) \ + (_cfg.hostmem > 0) struct virtio_gpu_base_conf { uint32_t max_outputs; uint32_t flags; uint32_t xres; uint32_t yres; + uint64_t hostmem; }; struct virtio_gpu_ctrl_command { @@ -137,6 +140,8 @@ struct VirtIOGPUBase { int renderer_blocked; int enable; + MemoryRegion hostmem; + struct virtio_gpu_scanout scanout[VIRTIO_GPU_MAX_SCANOUTS]; int enabled_output_bitmask;