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Tsirkin" , Stefano Stabellini , Anthony PERARD , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Jan Beulich , Antonio Caggiano , "Dr . David Alan Gilbert" , Robert Beckett , , CC: Alex Deucher , =?UTF-8?q?Christian=20K=C3=B6nig?= , "Stewart Hildebrand" , Xenia Ragiadakou , Honglei Huang , Julia Zhang , Chen Jiqian Subject: [RFC QEMU PATCH 11/18] virtio-gpu: make blob scanout use dmabuf fd Date: Sun, 12 Mar 2023 17:22:37 +0800 Message-ID: <20230312092244.451465-12-ray.huang@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230312092244.451465-1-ray.huang@amd.com> References: <20230312092244.451465-1-ray.huang@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1NAM11FT007:EE_|DS7PR12MB6287:EE_ X-MS-Office365-Filtering-Correlation-Id: b74e6c69-b477-4d2c-248b-08db22db86ff X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230025)(4636009)(136003)(39860400002)(346002)(396003)(376002)(451199018)(36840700001)(40470700004)(46966006)(186003)(356005)(921005)(2906002)(16526019)(82740400003)(26005)(1076003)(81166007)(2616005)(8936002)(5660300002)(36860700001)(6666004)(7416002)(336012)(426003)(47076005)(40460700003)(41300700001)(86362001)(8676002)(4326008)(82310400005)(40480700001)(70586007)(70206006)(36756003)(7696005)(478600001)(316002)(83380400001)(110136005)(54906003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Mar 2023 09:24:05.9544 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b74e6c69-b477-4d2c-248b-08db22db86ff X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT007.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB6287 From: Robert Beckett This relies on a virglrenderer change to include the dmabuf fd when returning resource info. Signed-off-by: Robert Beckett --- hw/display/virtio-gpu-virgl.c | 103 ++++++++++++++++++++++++++++++++- hw/display/virtio-gpu.c | 4 +- include/hw/virtio/virtio-gpu.h | 5 ++ 3 files changed, 109 insertions(+), 3 deletions(-) diff --git a/hw/display/virtio-gpu-virgl.c b/hw/display/virtio-gpu-virgl.c index 1fe144f64d..69083d15a9 100644 --- a/hw/display/virtio-gpu-virgl.c +++ b/hw/display/virtio-gpu-virgl.c @@ -18,6 +18,7 @@ #include "hw/virtio/virtio-gpu.h" #include "hw/virtio/virtio-gpu-bswap.h" #include "hw/virtio/virtio-iommu.h" +#include "hw/virtio/virtio-gpu-pixman.h" #include @@ -208,6 +209,106 @@ static void virgl_cmd_set_scanout(VirtIOGPU *g, g->parent_obj.scanout[ss.scanout_id].resource_id = ss.resource_id; } +static void virgl_cmd_set_scanout_blob(VirtIOGPU *g, + struct virtio_gpu_ctrl_command *cmd) +{ + struct virtio_gpu_simple_resource *res; + struct virtio_gpu_framebuffer fb = { 0 }; + struct virtio_gpu_set_scanout_blob ss; + struct virgl_renderer_resource_info info; + uint64_t fbend; + + VIRTIO_GPU_FILL_CMD(ss); + virtio_gpu_scanout_blob_bswap(&ss); + trace_virtio_gpu_cmd_set_scanout_blob(ss.scanout_id, ss.resource_id, + ss.r.width, ss.r.height, ss.r.x, + ss.r.y); + + if (ss.scanout_id >= g->parent_obj.conf.max_outputs) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified %d", + __func__, ss.scanout_id); + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID; + return; + } + + if (ss.resource_id == 0) { + virtio_gpu_disable_scanout(g, ss.scanout_id); + return; + } + + if (ss.width < 16 || + ss.height < 16 || + ss.r.x + ss.r.width > ss.width || + ss.r.y + ss.r.height > ss.height) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout %d bounds for" + " resource %d, rect (%d,%d)+%d,%d, fb %d %d\n", + __func__, ss.scanout_id, ss.resource_id, + ss.r.x, ss.r.y, ss.r.width, ss.r.height, + ss.width, ss.height); + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; + return; + } + + if (!console_has_gl(g->parent_obj.scanout[ss.scanout_id].con)) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: unable to scanout blot without GL!\n", __func__); + return; + } + + res = virtio_gpu_find_resource(g, ss.resource_id); + if (!res) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: illegal resource specified %d\n", + __func__, ss.resource_id); + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; + return; + } + if (virgl_renderer_resource_get_info(ss.resource_id, &info)) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: illegal virgl resource specified %d\n", + __func__, ss.resource_id); + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; + return; + } + if (!res->dmabuf_fd && info.fd) + res->dmabuf_fd = info.fd; + + fb.format = virtio_gpu_get_pixman_format(ss.format); + if (!fb.format) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: host couldn't handle guest format %d\n", + __func__, ss.format); + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; + return; + } + + fb.bytes_pp = DIV_ROUND_UP(PIXMAN_FORMAT_BPP(fb.format), 8); + fb.width = ss.width; + fb.height = ss.height; + fb.stride = ss.strides[0]; + fb.offset = ss.offsets[0] + ss.r.x * fb.bytes_pp + ss.r.y * fb.stride; + + fbend = fb.offset; + fbend += fb.stride * (ss.r.height - 1); + fbend += fb.bytes_pp * ss.r.width; + if (fbend > res->blob_size) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: fb end out of range\n", + __func__); + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; + return; + } + + g->parent_obj.enable = 1; + if (virtio_gpu_update_dmabuf(g, ss.scanout_id, res, &fb, &ss.r)) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: failed to update dmabuf\n", __func__); + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; + return; + } + virtio_gpu_update_scanout(g, ss.scanout_id, res, &ss.r); +} + + static void virgl_cmd_submit_3d(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { @@ -654,7 +755,7 @@ void virtio_gpu_virgl_process_cmd(VirtIOGPU *g, virgl_cmd_resource_create_blob(g, cmd); break; case VIRTIO_GPU_CMD_SET_SCANOUT_BLOB: - virtio_gpu_set_scanout_blob(g, cmd); + virgl_cmd_set_scanout_blob(g, cmd); break; case VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB: virgl_cmd_resource_map_blob(g, cmd); diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 1e334a1e78..95e421a525 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -371,7 +371,7 @@ static void virtio_gpu_resource_create_blob(VirtIOGPU *g, QTAILQ_INSERT_HEAD(&g->reslist, res, next); } -static void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id) +void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id) { struct virtio_gpu_scanout *scanout = &g->parent_obj.scanout[scanout_id]; struct virtio_gpu_simple_resource *res; @@ -575,7 +575,7 @@ static void virtio_unref_resource(pixman_image_t *image, void *data) pixman_image_unref(data); } -static void virtio_gpu_update_scanout(VirtIOGPU *g, +void virtio_gpu_update_scanout(VirtIOGPU *g, uint32_t scanout_id, struct virtio_gpu_simple_resource *res, struct virtio_gpu_rect *r) diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h index ce49cdfafb..ba509833db 100644 --- a/include/hw/virtio/virtio-gpu.h +++ b/include/hw/virtio/virtio-gpu.h @@ -286,6 +286,11 @@ void virtio_gpu_update_cursor_data(VirtIOGPU *g, uint32_t resource_id); void virtio_gpu_set_scanout_blob(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd); +void virtio_gpu_update_scanout(VirtIOGPU *g, + uint32_t scanout_id, + struct virtio_gpu_simple_resource *res, + struct virtio_gpu_rect *r); +void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id); /* virtio-gpu-udmabuf.c */ bool virtio_gpu_have_udmabuf(void); -- 2.25.1