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There are two problems with the current method of determining the virtio-gpu debug name. 1) TASK_COMM_LEN is defined to be 16 bytes only, and this is a Linux kernel idiom (see PR_SET_NAME + PR_GET_NAME). Though, Android/FreeBSD get around this via setprogname(..)/getprogname(..) in libc. On Android, names longer than 16 bytes are common. For example, one often encounters a program like "com.android.systemui". The virtio-gpu spec allows the debug name to be up to 64 bytes, so ideally userspace should be able to set debug names up to 64 bytes. 2) The current implementation determines the debug name using whatever task initiated virtgpu. This is could be a "RenderThread" of a larger program, when we actually want to propagate the debug name of the program. To fix these issues, add a new CONTEXT_INIT param that allows userspace to set the debug name when creating a context. It takes a null-terminated C-string as the param value. The length of the string (excluding the terminator) **should** be <= 64 bytes. Otherwise, the debug_name will be truncated to 64 bytes. Link to open-source userspace: https://android-review.googlesource.com/c/platform/hardware/google/gfxstream/+/2787176 Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org> Reviewed-by: Josh Simonot <josh.simonot@gmail.com> Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231018181727.772-2-gurchetansingh@chromium.org
271 lines
7.7 KiB
C
271 lines
7.7 KiB
C
/*
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* Copyright 2013 Red Hat
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef VIRTGPU_DRM_H
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#define VIRTGPU_DRM_H
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#include "drm.h"
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/* Please note that modifications to all structs defined here are
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* subject to backwards-compatibility constraints.
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*
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* Do not use pointers, use __u64 instead for 32 bit / 64 bit user/kernel
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* compatibility Keep fields aligned to their size
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*/
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#define DRM_VIRTGPU_MAP 0x01
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#define DRM_VIRTGPU_EXECBUFFER 0x02
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#define DRM_VIRTGPU_GETPARAM 0x03
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#define DRM_VIRTGPU_RESOURCE_CREATE 0x04
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#define DRM_VIRTGPU_RESOURCE_INFO 0x05
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#define DRM_VIRTGPU_TRANSFER_FROM_HOST 0x06
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#define DRM_VIRTGPU_TRANSFER_TO_HOST 0x07
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#define DRM_VIRTGPU_WAIT 0x08
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#define DRM_VIRTGPU_GET_CAPS 0x09
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#define DRM_VIRTGPU_RESOURCE_CREATE_BLOB 0x0a
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#define DRM_VIRTGPU_CONTEXT_INIT 0x0b
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#define VIRTGPU_EXECBUF_FENCE_FD_IN 0x01
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#define VIRTGPU_EXECBUF_FENCE_FD_OUT 0x02
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#define VIRTGPU_EXECBUF_RING_IDX 0x04
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#define VIRTGPU_EXECBUF_FLAGS (\
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VIRTGPU_EXECBUF_FENCE_FD_IN |\
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VIRTGPU_EXECBUF_FENCE_FD_OUT |\
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VIRTGPU_EXECBUF_RING_IDX |\
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0)
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struct drm_virtgpu_map {
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__u64 offset; /* use for mmap system call */
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__u32 handle;
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__u32 pad;
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};
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#define VIRTGPU_EXECBUF_SYNCOBJ_RESET 0x01
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#define VIRTGPU_EXECBUF_SYNCOBJ_FLAGS ( \
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VIRTGPU_EXECBUF_SYNCOBJ_RESET | \
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0)
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struct drm_virtgpu_execbuffer_syncobj {
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__u32 handle;
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__u32 flags;
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__u64 point;
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};
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/* fence_fd is modified on success if VIRTGPU_EXECBUF_FENCE_FD_OUT flag is set. */
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struct drm_virtgpu_execbuffer {
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__u32 flags;
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__u32 size;
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__u64 command; /* void* */
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__u64 bo_handles;
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__u32 num_bo_handles;
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__s32 fence_fd; /* in/out fence fd (see VIRTGPU_EXECBUF_FENCE_FD_IN/OUT) */
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__u32 ring_idx; /* command ring index (see VIRTGPU_EXECBUF_RING_IDX) */
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__u32 syncobj_stride; /* size of @drm_virtgpu_execbuffer_syncobj */
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__u32 num_in_syncobjs;
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__u32 num_out_syncobjs;
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__u64 in_syncobjs;
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__u64 out_syncobjs;
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};
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#define VIRTGPU_PARAM_3D_FEATURES 1 /* do we have 3D features in the hw */
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#define VIRTGPU_PARAM_CAPSET_QUERY_FIX 2 /* do we have the capset fix */
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#define VIRTGPU_PARAM_RESOURCE_BLOB 3 /* DRM_VIRTGPU_RESOURCE_CREATE_BLOB */
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#define VIRTGPU_PARAM_HOST_VISIBLE 4 /* Host blob resources are mappable */
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#define VIRTGPU_PARAM_CROSS_DEVICE 5 /* Cross virtio-device resource sharing */
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#define VIRTGPU_PARAM_CONTEXT_INIT 6 /* DRM_VIRTGPU_CONTEXT_INIT */
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#define VIRTGPU_PARAM_SUPPORTED_CAPSET_IDs 7 /* Bitmask of supported capability set ids */
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#define VIRTGPU_PARAM_EXPLICIT_DEBUG_NAME 8 /* Ability to set debug name from userspace */
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struct drm_virtgpu_getparam {
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__u64 param;
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__u64 value;
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};
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/* NO_BO flags? NO resource flag? */
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/* resource flag for y_0_top */
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struct drm_virtgpu_resource_create {
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__u32 target;
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__u32 format;
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__u32 bind;
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__u32 width;
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__u32 height;
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__u32 depth;
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__u32 array_size;
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__u32 last_level;
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__u32 nr_samples;
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__u32 flags;
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__u32 bo_handle; /* if this is set - recreate a new resource attached to this bo ? */
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__u32 res_handle; /* returned by kernel */
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__u32 size; /* validate transfer in the host */
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__u32 stride; /* validate transfer in the host */
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};
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struct drm_virtgpu_resource_info {
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__u32 bo_handle;
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__u32 res_handle;
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__u32 size;
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__u32 blob_mem;
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};
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struct drm_virtgpu_3d_box {
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__u32 x;
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__u32 y;
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__u32 z;
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__u32 w;
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__u32 h;
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__u32 d;
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};
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struct drm_virtgpu_3d_transfer_to_host {
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__u32 bo_handle;
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struct drm_virtgpu_3d_box box;
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__u32 level;
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__u32 offset;
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__u32 stride;
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__u32 layer_stride;
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};
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struct drm_virtgpu_3d_transfer_from_host {
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__u32 bo_handle;
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struct drm_virtgpu_3d_box box;
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__u32 level;
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__u32 offset;
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__u32 stride;
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__u32 layer_stride;
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};
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#define VIRTGPU_WAIT_NOWAIT 1 /* like it */
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struct drm_virtgpu_3d_wait {
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__u32 handle; /* 0 is an invalid handle */
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__u32 flags;
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};
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struct drm_virtgpu_get_caps {
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__u32 cap_set_id;
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__u32 cap_set_ver;
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__u64 addr;
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__u32 size;
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__u32 pad;
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};
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struct drm_virtgpu_resource_create_blob {
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#define VIRTGPU_BLOB_MEM_GUEST 0x0001
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#define VIRTGPU_BLOB_MEM_HOST3D 0x0002
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#define VIRTGPU_BLOB_MEM_HOST3D_GUEST 0x0003
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#define VIRTGPU_BLOB_FLAG_USE_MAPPABLE 0x0001
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#define VIRTGPU_BLOB_FLAG_USE_SHAREABLE 0x0002
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#define VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE 0x0004
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/* zero is invalid blob_mem */
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__u32 blob_mem;
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__u32 blob_flags;
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__u32 bo_handle;
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__u32 res_handle;
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__u64 size;
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/*
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* for 3D contexts with VIRTGPU_BLOB_MEM_HOST3D_GUEST and
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* VIRTGPU_BLOB_MEM_HOST3D otherwise, must be zero.
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*/
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__u32 pad;
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__u32 cmd_size;
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__u64 cmd;
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__u64 blob_id;
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};
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#define VIRTGPU_CONTEXT_PARAM_CAPSET_ID 0x0001
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#define VIRTGPU_CONTEXT_PARAM_NUM_RINGS 0x0002
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#define VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK 0x0003
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#define VIRTGPU_CONTEXT_PARAM_DEBUG_NAME 0x0004
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struct drm_virtgpu_context_set_param {
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__u64 param;
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__u64 value;
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};
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struct drm_virtgpu_context_init {
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__u32 num_params;
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__u32 pad;
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/* pointer to drm_virtgpu_context_set_param array */
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__u64 ctx_set_params;
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};
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/*
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* Event code that's given when VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK is in
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* effect. The event size is sizeof(drm_event), since there is no additional
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* payload.
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*/
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#define VIRTGPU_EVENT_FENCE_SIGNALED 0x90000000
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#define DRM_IOCTL_VIRTGPU_MAP \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_MAP, struct drm_virtgpu_map)
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#define DRM_IOCTL_VIRTGPU_EXECBUFFER \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_EXECBUFFER,\
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struct drm_virtgpu_execbuffer)
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#define DRM_IOCTL_VIRTGPU_GETPARAM \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_GETPARAM,\
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struct drm_virtgpu_getparam)
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#define DRM_IOCTL_VIRTGPU_RESOURCE_CREATE \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_RESOURCE_CREATE, \
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struct drm_virtgpu_resource_create)
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#define DRM_IOCTL_VIRTGPU_RESOURCE_INFO \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_RESOURCE_INFO, \
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struct drm_virtgpu_resource_info)
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#define DRM_IOCTL_VIRTGPU_TRANSFER_FROM_HOST \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_TRANSFER_FROM_HOST, \
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struct drm_virtgpu_3d_transfer_from_host)
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#define DRM_IOCTL_VIRTGPU_TRANSFER_TO_HOST \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_TRANSFER_TO_HOST, \
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struct drm_virtgpu_3d_transfer_to_host)
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#define DRM_IOCTL_VIRTGPU_WAIT \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_WAIT, \
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struct drm_virtgpu_3d_wait)
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#define DRM_IOCTL_VIRTGPU_GET_CAPS \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_GET_CAPS, \
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struct drm_virtgpu_get_caps)
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#define DRM_IOCTL_VIRTGPU_RESOURCE_CREATE_BLOB \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_RESOURCE_CREATE_BLOB, \
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struct drm_virtgpu_resource_create_blob)
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#define DRM_IOCTL_VIRTGPU_CONTEXT_INIT \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_CONTEXT_INIT, \
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struct drm_virtgpu_context_init)
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#if defined(__cplusplus)
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}
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#endif
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#endif
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