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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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f0c6cef7e7
Move object release into a separate worker. Releasing objects requires sending commands to the host. Doing that in the dequeue worker will cause deadlocks in case the command queue gets filled up, because the dequeue worker is also the one which will free up slots in the command queue. Reported-by: Chia-I Wu <olvaffe@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Chia-I Wu <olvaffe@gmail.com> Tested-by: Chia-I Wu <olvaffe@gmail.com> Link: http://patchwork.freedesktop.org/patch/msgid/20190830060116.10476-1-kraxel@redhat.com
383 lines
12 KiB
C
383 lines
12 KiB
C
/*
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* Copyright (C) 2015 Red Hat, Inc.
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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
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef VIRTIO_DRV_H
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#define VIRTIO_DRV_H
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#include <linux/virtio.h>
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#include <linux/virtio_ids.h>
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#include <linux/virtio_config.h>
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#include <linux/virtio_gpu.h>
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#include <drm/drm_atomic.h>
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#include <drm/drm_encoder.h>
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#include <drm/drm_fb_helper.h>
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#include <drm/drm_gem.h>
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#include <drm/drm_gem_shmem_helper.h>
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#include <drm/drm_ioctl.h>
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#include <drm/drm_probe_helper.h>
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#define DRIVER_NAME "virtio_gpu"
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#define DRIVER_DESC "virtio GPU"
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#define DRIVER_DATE "0"
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#define DRIVER_MAJOR 0
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#define DRIVER_MINOR 1
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#define DRIVER_PATCHLEVEL 0
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struct virtio_gpu_object_params {
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uint32_t format;
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uint32_t width;
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uint32_t height;
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unsigned long size;
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bool dumb;
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/* 3d */
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bool virgl;
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uint32_t target;
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uint32_t bind;
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uint32_t depth;
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uint32_t array_size;
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uint32_t last_level;
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uint32_t nr_samples;
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uint32_t flags;
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};
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struct virtio_gpu_object {
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struct drm_gem_shmem_object base;
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uint32_t hw_res_handle;
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struct sg_table *pages;
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uint32_t mapped;
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bool dumb;
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bool created;
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};
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#define gem_to_virtio_gpu_obj(gobj) \
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container_of((gobj), struct virtio_gpu_object, base.base)
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struct virtio_gpu_object_array {
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struct ww_acquire_ctx ticket;
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struct list_head next;
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u32 nents, total;
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struct drm_gem_object *objs[];
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};
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struct virtio_gpu_vbuffer;
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struct virtio_gpu_device;
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typedef void (*virtio_gpu_resp_cb)(struct virtio_gpu_device *vgdev,
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struct virtio_gpu_vbuffer *vbuf);
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struct virtio_gpu_fence_driver {
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atomic64_t last_seq;
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uint64_t sync_seq;
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uint64_t context;
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struct list_head fences;
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spinlock_t lock;
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};
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struct virtio_gpu_fence {
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struct dma_fence f;
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struct virtio_gpu_fence_driver *drv;
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struct list_head node;
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};
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#define to_virtio_fence(x) \
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container_of(x, struct virtio_gpu_fence, f)
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struct virtio_gpu_vbuffer {
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char *buf;
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int size;
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void *data_buf;
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uint32_t data_size;
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char *resp_buf;
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int resp_size;
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virtio_gpu_resp_cb resp_cb;
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struct virtio_gpu_object_array *objs;
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struct list_head list;
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};
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struct virtio_gpu_output {
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int index;
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struct drm_crtc crtc;
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struct drm_connector conn;
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struct drm_encoder enc;
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struct virtio_gpu_display_one info;
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struct virtio_gpu_update_cursor cursor;
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struct edid *edid;
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int cur_x;
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int cur_y;
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bool enabled;
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};
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#define drm_crtc_to_virtio_gpu_output(x) \
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container_of(x, struct virtio_gpu_output, crtc)
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#define drm_connector_to_virtio_gpu_output(x) \
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container_of(x, struct virtio_gpu_output, conn)
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#define drm_encoder_to_virtio_gpu_output(x) \
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container_of(x, struct virtio_gpu_output, enc)
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struct virtio_gpu_framebuffer {
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struct drm_framebuffer base;
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struct virtio_gpu_fence *fence;
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};
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#define to_virtio_gpu_framebuffer(x) \
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container_of(x, struct virtio_gpu_framebuffer, base)
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struct virtio_gpu_queue {
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struct virtqueue *vq;
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spinlock_t qlock;
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wait_queue_head_t ack_queue;
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struct work_struct dequeue_work;
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};
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struct virtio_gpu_drv_capset {
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uint32_t id;
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uint32_t max_version;
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uint32_t max_size;
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};
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struct virtio_gpu_drv_cap_cache {
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struct list_head head;
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void *caps_cache;
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uint32_t id;
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uint32_t version;
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uint32_t size;
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atomic_t is_valid;
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};
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struct virtio_gpu_device {
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struct device *dev;
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struct drm_device *ddev;
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struct virtio_device *vdev;
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struct virtio_gpu_output outputs[VIRTIO_GPU_MAX_SCANOUTS];
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uint32_t num_scanouts;
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struct virtio_gpu_queue ctrlq;
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struct virtio_gpu_queue cursorq;
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struct kmem_cache *vbufs;
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bool vqs_ready;
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struct ida resource_ida;
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wait_queue_head_t resp_wq;
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/* current display info */
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spinlock_t display_info_lock;
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bool display_info_pending;
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struct virtio_gpu_fence_driver fence_drv;
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struct ida ctx_id_ida;
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bool has_virgl_3d;
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bool has_edid;
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struct work_struct config_changed_work;
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struct work_struct obj_free_work;
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spinlock_t obj_free_lock;
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struct list_head obj_free_list;
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struct virtio_gpu_drv_capset *capsets;
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uint32_t num_capsets;
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struct list_head cap_cache;
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};
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struct virtio_gpu_fpriv {
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uint32_t ctx_id;
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};
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/* virtio_ioctl.c */
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#define DRM_VIRTIO_NUM_IOCTLS 10
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extern struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS];
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/* virtio_kms.c */
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int virtio_gpu_init(struct drm_device *dev);
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void virtio_gpu_deinit(struct drm_device *dev);
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int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file);
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void virtio_gpu_driver_postclose(struct drm_device *dev, struct drm_file *file);
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/* virtio_gem.c */
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void virtio_gpu_gem_free_object(struct drm_gem_object *gem_obj);
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int virtio_gpu_gem_init(struct virtio_gpu_device *vgdev);
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void virtio_gpu_gem_fini(struct virtio_gpu_device *vgdev);
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int virtio_gpu_gem_create(struct drm_file *file,
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struct drm_device *dev,
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struct virtio_gpu_object_params *params,
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struct drm_gem_object **obj_p,
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uint32_t *handle_p);
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int virtio_gpu_gem_object_open(struct drm_gem_object *obj,
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struct drm_file *file);
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void virtio_gpu_gem_object_close(struct drm_gem_object *obj,
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struct drm_file *file);
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int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
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struct drm_device *dev,
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struct drm_mode_create_dumb *args);
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int virtio_gpu_mode_dumb_mmap(struct drm_file *file_priv,
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struct drm_device *dev,
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uint32_t handle, uint64_t *offset_p);
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struct virtio_gpu_object_array *virtio_gpu_array_alloc(u32 nents);
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struct virtio_gpu_object_array*
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virtio_gpu_array_from_handles(struct drm_file *drm_file, u32 *handles, u32 nents);
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void virtio_gpu_array_add_obj(struct virtio_gpu_object_array *objs,
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struct drm_gem_object *obj);
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int virtio_gpu_array_lock_resv(struct virtio_gpu_object_array *objs);
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void virtio_gpu_array_unlock_resv(struct virtio_gpu_object_array *objs);
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void virtio_gpu_array_add_fence(struct virtio_gpu_object_array *objs,
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struct dma_fence *fence);
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void virtio_gpu_array_put_free(struct virtio_gpu_object_array *objs);
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void virtio_gpu_array_put_free_delayed(struct virtio_gpu_device *vgdev,
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struct virtio_gpu_object_array *objs);
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void virtio_gpu_array_put_free_work(struct work_struct *work);
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/* virtio vg */
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int virtio_gpu_alloc_vbufs(struct virtio_gpu_device *vgdev);
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void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev);
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void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
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struct virtio_gpu_object *bo,
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struct virtio_gpu_object_params *params,
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struct virtio_gpu_object_array *objs,
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struct virtio_gpu_fence *fence);
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void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
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uint32_t resource_id);
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void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
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uint64_t offset,
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__le32 width, __le32 height,
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__le32 x, __le32 y,
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struct virtio_gpu_object_array *objs,
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struct virtio_gpu_fence *fence);
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void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
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uint32_t resource_id,
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uint32_t x, uint32_t y,
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uint32_t width, uint32_t height);
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void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
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uint32_t scanout_id, uint32_t resource_id,
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uint32_t width, uint32_t height,
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uint32_t x, uint32_t y);
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int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
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struct virtio_gpu_object *obj,
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struct virtio_gpu_fence *fence);
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void virtio_gpu_object_detach(struct virtio_gpu_device *vgdev,
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struct virtio_gpu_object *obj);
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int virtio_gpu_attach_status_page(struct virtio_gpu_device *vgdev);
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int virtio_gpu_detach_status_page(struct virtio_gpu_device *vgdev);
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void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev,
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struct virtio_gpu_output *output);
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int virtio_gpu_cmd_get_display_info(struct virtio_gpu_device *vgdev);
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int virtio_gpu_cmd_get_capset_info(struct virtio_gpu_device *vgdev, int idx);
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int virtio_gpu_cmd_get_capset(struct virtio_gpu_device *vgdev,
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int idx, int version,
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struct virtio_gpu_drv_cap_cache **cache_p);
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int virtio_gpu_cmd_get_edids(struct virtio_gpu_device *vgdev);
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void virtio_gpu_cmd_context_create(struct virtio_gpu_device *vgdev, uint32_t id,
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uint32_t nlen, const char *name);
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void virtio_gpu_cmd_context_destroy(struct virtio_gpu_device *vgdev,
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uint32_t id);
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void virtio_gpu_cmd_context_attach_resource(struct virtio_gpu_device *vgdev,
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uint32_t ctx_id,
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struct virtio_gpu_object_array *objs);
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void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
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uint32_t ctx_id,
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struct virtio_gpu_object_array *objs);
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void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
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void *data, uint32_t data_size,
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uint32_t ctx_id,
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struct virtio_gpu_object_array *objs,
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struct virtio_gpu_fence *fence);
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void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
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uint32_t ctx_id,
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uint64_t offset, uint32_t level,
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struct virtio_gpu_box *box,
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struct virtio_gpu_object_array *objs,
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struct virtio_gpu_fence *fence);
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void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
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uint32_t ctx_id,
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uint64_t offset, uint32_t level,
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struct virtio_gpu_box *box,
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struct virtio_gpu_object_array *objs,
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struct virtio_gpu_fence *fence);
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void
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virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
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struct virtio_gpu_object *bo,
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struct virtio_gpu_object_params *params,
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struct virtio_gpu_object_array *objs,
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struct virtio_gpu_fence *fence);
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void virtio_gpu_ctrl_ack(struct virtqueue *vq);
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void virtio_gpu_cursor_ack(struct virtqueue *vq);
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void virtio_gpu_fence_ack(struct virtqueue *vq);
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void virtio_gpu_dequeue_ctrl_func(struct work_struct *work);
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void virtio_gpu_dequeue_cursor_func(struct work_struct *work);
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void virtio_gpu_dequeue_fence_func(struct work_struct *work);
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/* virtio_gpu_display.c */
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int virtio_gpu_framebuffer_init(struct drm_device *dev,
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struct virtio_gpu_framebuffer *vgfb,
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const struct drm_mode_fb_cmd2 *mode_cmd,
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struct drm_gem_object *obj);
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void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
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void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev);
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/* virtio_gpu_plane.c */
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uint32_t virtio_gpu_translate_format(uint32_t drm_fourcc);
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struct drm_plane *virtio_gpu_plane_init(struct virtio_gpu_device *vgdev,
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enum drm_plane_type type,
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int index);
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/* virtio_gpu_fence.c */
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bool virtio_fence_signaled(struct dma_fence *f);
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struct virtio_gpu_fence *virtio_gpu_fence_alloc(
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struct virtio_gpu_device *vgdev);
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void virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
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struct virtio_gpu_ctrl_hdr *cmd_hdr,
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struct virtio_gpu_fence *fence);
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void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev,
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u64 last_seq);
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/* virtio_gpu_object */
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struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev,
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size_t size);
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int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
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struct virtio_gpu_object_params *params,
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struct virtio_gpu_object **bo_ptr,
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struct virtio_gpu_fence *fence);
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/* virtgpu_prime.c */
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struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
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struct drm_device *dev, struct dma_buf_attachment *attach,
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struct sg_table *sgt);
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static inline u64 virtio_gpu_object_mmap_offset(struct virtio_gpu_object *bo)
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{
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return drm_vma_node_offset_addr(&bo->base.base.vma_node);
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}
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/* virgl debufs */
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int virtio_gpu_debugfs_init(struct drm_minor *minor);
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#endif
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