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When the execbuf call receives an in-fence it will get the dma_fence related to that fence fd and wait on it before submitting the draw call. On the out-fence side we get fence returned by the submitted draw call and attach it to a sync_file and send the sync_file fd to userspace. On error -1 is returned to userspace. VIRTGPU_EXECBUF_FENCE_FD_IN & VIRTGPU_EXECBUF_FENCE_FD_OUT are supported at the simultaneously and can be flagged for simultaneously. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com> Signed-off-by: Robert Foss <robert.foss@collabora.com> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Link: http://patchwork.freedesktop.org/patch/msgid/20181112165157.32765-4-robert.foss@collabora.com Suggested-by: Rob Herring <robh@kernel.org> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
182 lines
4.9 KiB
C
182 lines
4.9 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 VIRTGPU_EXECBUF_FENCE_FD_IN 0x01
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#define VIRTGPU_EXECBUF_FENCE_FD_OUT 0x02
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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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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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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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};
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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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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 stride;
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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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};
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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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};
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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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#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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#if defined(__cplusplus)
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}
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#endif
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#endif
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