438 lines
13 KiB
C
438 lines
13 KiB
C
/*
|
|
* Copyright (C) 2015 Red Hat, Inc.
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial
|
|
* portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef VIRTIO_DRV_H
|
|
#define VIRTIO_DRV_H
|
|
|
|
#include <linux/virtio.h>
|
|
#include <linux/virtio_ids.h>
|
|
#include <linux/virtio_config.h>
|
|
#include <linux/virtio_gpu.h>
|
|
|
|
#include <drm/drmP.h>
|
|
#include <drm/drm_gem.h>
|
|
#include <drm/drm_atomic.h>
|
|
#include <drm/drm_crtc_helper.h>
|
|
#include <drm/drm_encoder.h>
|
|
#include <drm/drm_fb_helper.h>
|
|
#include <drm/ttm/ttm_bo_api.h>
|
|
#include <drm/ttm/ttm_bo_driver.h>
|
|
#include <drm/ttm/ttm_placement.h>
|
|
#include <drm/ttm/ttm_module.h>
|
|
|
|
#define DRIVER_NAME "virtio_gpu"
|
|
#define DRIVER_DESC "virtio GPU"
|
|
#define DRIVER_DATE "0"
|
|
|
|
#define DRIVER_MAJOR 0
|
|
#define DRIVER_MINOR 1
|
|
#define DRIVER_PATCHLEVEL 0
|
|
|
|
struct virtio_gpu_object_params {
|
|
uint32_t format;
|
|
uint32_t width;
|
|
uint32_t height;
|
|
unsigned long size;
|
|
bool dumb;
|
|
/* 3d */
|
|
bool virgl;
|
|
uint32_t target;
|
|
uint32_t bind;
|
|
uint32_t depth;
|
|
uint32_t array_size;
|
|
uint32_t last_level;
|
|
uint32_t nr_samples;
|
|
uint32_t flags;
|
|
};
|
|
|
|
struct virtio_gpu_object {
|
|
struct drm_gem_object gem_base;
|
|
uint32_t hw_res_handle;
|
|
|
|
struct sg_table *pages;
|
|
uint32_t mapped;
|
|
void *vmap;
|
|
bool dumb;
|
|
struct ttm_place placement_code;
|
|
struct ttm_placement placement;
|
|
struct ttm_buffer_object tbo;
|
|
struct ttm_bo_kmap_obj kmap;
|
|
bool created;
|
|
};
|
|
#define gem_to_virtio_gpu_obj(gobj) \
|
|
container_of((gobj), struct virtio_gpu_object, gem_base)
|
|
|
|
struct virtio_gpu_vbuffer;
|
|
struct virtio_gpu_device;
|
|
|
|
typedef void (*virtio_gpu_resp_cb)(struct virtio_gpu_device *vgdev,
|
|
struct virtio_gpu_vbuffer *vbuf);
|
|
|
|
struct virtio_gpu_fence_driver {
|
|
atomic64_t last_seq;
|
|
uint64_t sync_seq;
|
|
uint64_t context;
|
|
struct list_head fences;
|
|
spinlock_t lock;
|
|
};
|
|
|
|
struct virtio_gpu_fence {
|
|
struct dma_fence f;
|
|
struct virtio_gpu_fence_driver *drv;
|
|
struct list_head node;
|
|
};
|
|
#define to_virtio_fence(x) \
|
|
container_of(x, struct virtio_gpu_fence, f)
|
|
|
|
struct virtio_gpu_vbuffer {
|
|
char *buf;
|
|
int size;
|
|
|
|
void *data_buf;
|
|
uint32_t data_size;
|
|
|
|
char *resp_buf;
|
|
int resp_size;
|
|
|
|
virtio_gpu_resp_cb resp_cb;
|
|
|
|
struct list_head list;
|
|
};
|
|
|
|
struct virtio_gpu_output {
|
|
int index;
|
|
struct drm_crtc crtc;
|
|
struct drm_connector conn;
|
|
struct drm_encoder enc;
|
|
struct virtio_gpu_display_one info;
|
|
struct virtio_gpu_update_cursor cursor;
|
|
struct edid *edid;
|
|
int cur_x;
|
|
int cur_y;
|
|
bool enabled;
|
|
};
|
|
#define drm_crtc_to_virtio_gpu_output(x) \
|
|
container_of(x, struct virtio_gpu_output, crtc)
|
|
#define drm_connector_to_virtio_gpu_output(x) \
|
|
container_of(x, struct virtio_gpu_output, conn)
|
|
#define drm_encoder_to_virtio_gpu_output(x) \
|
|
container_of(x, struct virtio_gpu_output, enc)
|
|
|
|
struct virtio_gpu_framebuffer {
|
|
struct drm_framebuffer base;
|
|
int x1, y1, x2, y2; /* dirty rect */
|
|
spinlock_t dirty_lock;
|
|
uint32_t hw_res_handle;
|
|
struct virtio_gpu_fence *fence;
|
|
};
|
|
#define to_virtio_gpu_framebuffer(x) \
|
|
container_of(x, struct virtio_gpu_framebuffer, base)
|
|
|
|
struct virtio_gpu_mman {
|
|
struct ttm_bo_global_ref bo_global_ref;
|
|
struct drm_global_reference mem_global_ref;
|
|
bool mem_global_referenced;
|
|
struct ttm_bo_device bdev;
|
|
};
|
|
|
|
struct virtio_gpu_queue {
|
|
struct virtqueue *vq;
|
|
spinlock_t qlock;
|
|
wait_queue_head_t ack_queue;
|
|
struct work_struct dequeue_work;
|
|
};
|
|
|
|
struct virtio_gpu_drv_capset {
|
|
uint32_t id;
|
|
uint32_t max_version;
|
|
uint32_t max_size;
|
|
};
|
|
|
|
struct virtio_gpu_drv_cap_cache {
|
|
struct list_head head;
|
|
void *caps_cache;
|
|
uint32_t id;
|
|
uint32_t version;
|
|
uint32_t size;
|
|
atomic_t is_valid;
|
|
};
|
|
|
|
struct virtio_gpu_device {
|
|
struct device *dev;
|
|
struct drm_device *ddev;
|
|
|
|
struct virtio_device *vdev;
|
|
|
|
struct virtio_gpu_mman mman;
|
|
|
|
struct virtio_gpu_output outputs[VIRTIO_GPU_MAX_SCANOUTS];
|
|
uint32_t num_scanouts;
|
|
|
|
struct virtio_gpu_queue ctrlq;
|
|
struct virtio_gpu_queue cursorq;
|
|
struct kmem_cache *vbufs;
|
|
bool vqs_ready;
|
|
|
|
struct ida resource_ida;
|
|
|
|
wait_queue_head_t resp_wq;
|
|
/* current display info */
|
|
spinlock_t display_info_lock;
|
|
bool display_info_pending;
|
|
|
|
struct virtio_gpu_fence_driver fence_drv;
|
|
|
|
struct ida ctx_id_ida;
|
|
|
|
bool has_virgl_3d;
|
|
bool has_edid;
|
|
|
|
struct work_struct config_changed_work;
|
|
|
|
struct virtio_gpu_drv_capset *capsets;
|
|
uint32_t num_capsets;
|
|
struct list_head cap_cache;
|
|
};
|
|
|
|
struct virtio_gpu_fpriv {
|
|
uint32_t ctx_id;
|
|
};
|
|
|
|
/* virtio_ioctl.c */
|
|
#define DRM_VIRTIO_NUM_IOCTLS 10
|
|
extern struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS];
|
|
int virtio_gpu_object_list_validate(struct ww_acquire_ctx *ticket,
|
|
struct list_head *head);
|
|
void virtio_gpu_unref_list(struct list_head *head);
|
|
|
|
/* virtio_kms.c */
|
|
int virtio_gpu_init(struct drm_device *dev);
|
|
void virtio_gpu_deinit(struct drm_device *dev);
|
|
int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file);
|
|
void virtio_gpu_driver_postclose(struct drm_device *dev, struct drm_file *file);
|
|
|
|
/* virtio_gem.c */
|
|
void virtio_gpu_gem_free_object(struct drm_gem_object *gem_obj);
|
|
int virtio_gpu_gem_init(struct virtio_gpu_device *vgdev);
|
|
void virtio_gpu_gem_fini(struct virtio_gpu_device *vgdev);
|
|
int virtio_gpu_gem_create(struct drm_file *file,
|
|
struct drm_device *dev,
|
|
struct virtio_gpu_object_params *params,
|
|
struct drm_gem_object **obj_p,
|
|
uint32_t *handle_p);
|
|
int virtio_gpu_gem_object_open(struct drm_gem_object *obj,
|
|
struct drm_file *file);
|
|
void virtio_gpu_gem_object_close(struct drm_gem_object *obj,
|
|
struct drm_file *file);
|
|
struct virtio_gpu_object*
|
|
virtio_gpu_alloc_object(struct drm_device *dev,
|
|
struct virtio_gpu_object_params *params,
|
|
struct virtio_gpu_fence *fence);
|
|
int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
|
|
struct drm_device *dev,
|
|
struct drm_mode_create_dumb *args);
|
|
int virtio_gpu_mode_dumb_mmap(struct drm_file *file_priv,
|
|
struct drm_device *dev,
|
|
uint32_t handle, uint64_t *offset_p);
|
|
|
|
/* virtio_fb */
|
|
int virtio_gpu_surface_dirty(struct virtio_gpu_framebuffer *qfb,
|
|
struct drm_clip_rect *clips,
|
|
unsigned int num_clips);
|
|
/* virtio vg */
|
|
int virtio_gpu_alloc_vbufs(struct virtio_gpu_device *vgdev);
|
|
void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev);
|
|
void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
|
|
struct virtio_gpu_object *bo,
|
|
struct virtio_gpu_object_params *params,
|
|
struct virtio_gpu_fence *fence);
|
|
void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
|
|
uint32_t resource_id);
|
|
void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
|
|
struct virtio_gpu_object *bo,
|
|
uint64_t offset,
|
|
__le32 width, __le32 height,
|
|
__le32 x, __le32 y,
|
|
struct virtio_gpu_fence *fence);
|
|
void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
|
|
uint32_t resource_id,
|
|
uint32_t x, uint32_t y,
|
|
uint32_t width, uint32_t height);
|
|
void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
|
|
uint32_t scanout_id, uint32_t resource_id,
|
|
uint32_t width, uint32_t height,
|
|
uint32_t x, uint32_t y);
|
|
int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
|
|
struct virtio_gpu_object *obj,
|
|
struct virtio_gpu_fence *fence);
|
|
void virtio_gpu_object_detach(struct virtio_gpu_device *vgdev,
|
|
struct virtio_gpu_object *obj);
|
|
int virtio_gpu_attach_status_page(struct virtio_gpu_device *vgdev);
|
|
int virtio_gpu_detach_status_page(struct virtio_gpu_device *vgdev);
|
|
void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev,
|
|
struct virtio_gpu_output *output);
|
|
int virtio_gpu_cmd_get_display_info(struct virtio_gpu_device *vgdev);
|
|
int virtio_gpu_cmd_get_capset_info(struct virtio_gpu_device *vgdev, int idx);
|
|
int virtio_gpu_cmd_get_capset(struct virtio_gpu_device *vgdev,
|
|
int idx, int version,
|
|
struct virtio_gpu_drv_cap_cache **cache_p);
|
|
int virtio_gpu_cmd_get_edids(struct virtio_gpu_device *vgdev);
|
|
void virtio_gpu_cmd_context_create(struct virtio_gpu_device *vgdev, uint32_t id,
|
|
uint32_t nlen, const char *name);
|
|
void virtio_gpu_cmd_context_destroy(struct virtio_gpu_device *vgdev,
|
|
uint32_t id);
|
|
void virtio_gpu_cmd_context_attach_resource(struct virtio_gpu_device *vgdev,
|
|
uint32_t ctx_id,
|
|
uint32_t resource_id);
|
|
void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
|
|
uint32_t ctx_id,
|
|
uint32_t resource_id);
|
|
void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
|
|
void *data, uint32_t data_size,
|
|
uint32_t ctx_id, struct virtio_gpu_fence *fence);
|
|
void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
|
|
uint32_t resource_id, uint32_t ctx_id,
|
|
uint64_t offset, uint32_t level,
|
|
struct virtio_gpu_box *box,
|
|
struct virtio_gpu_fence *fence);
|
|
void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
|
|
struct virtio_gpu_object *bo,
|
|
uint32_t ctx_id,
|
|
uint64_t offset, uint32_t level,
|
|
struct virtio_gpu_box *box,
|
|
struct virtio_gpu_fence *fence);
|
|
void
|
|
virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
|
|
struct virtio_gpu_object *bo,
|
|
struct virtio_gpu_object_params *params,
|
|
struct virtio_gpu_fence *fence);
|
|
void virtio_gpu_ctrl_ack(struct virtqueue *vq);
|
|
void virtio_gpu_cursor_ack(struct virtqueue *vq);
|
|
void virtio_gpu_fence_ack(struct virtqueue *vq);
|
|
void virtio_gpu_dequeue_ctrl_func(struct work_struct *work);
|
|
void virtio_gpu_dequeue_cursor_func(struct work_struct *work);
|
|
void virtio_gpu_dequeue_fence_func(struct work_struct *work);
|
|
|
|
/* virtio_gpu_display.c */
|
|
int virtio_gpu_framebuffer_init(struct drm_device *dev,
|
|
struct virtio_gpu_framebuffer *vgfb,
|
|
const struct drm_mode_fb_cmd2 *mode_cmd,
|
|
struct drm_gem_object *obj);
|
|
void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
|
|
void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev);
|
|
|
|
/* virtio_gpu_plane.c */
|
|
uint32_t virtio_gpu_translate_format(uint32_t drm_fourcc);
|
|
struct drm_plane *virtio_gpu_plane_init(struct virtio_gpu_device *vgdev,
|
|
enum drm_plane_type type,
|
|
int index);
|
|
|
|
/* virtio_gpu_ttm.c */
|
|
int virtio_gpu_ttm_init(struct virtio_gpu_device *vgdev);
|
|
void virtio_gpu_ttm_fini(struct virtio_gpu_device *vgdev);
|
|
int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma);
|
|
|
|
/* virtio_gpu_fence.c */
|
|
bool virtio_fence_signaled(struct dma_fence *f);
|
|
struct virtio_gpu_fence *virtio_gpu_fence_alloc(
|
|
struct virtio_gpu_device *vgdev);
|
|
void virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
|
|
struct virtio_gpu_ctrl_hdr *cmd_hdr,
|
|
struct virtio_gpu_fence *fence);
|
|
void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev,
|
|
u64 last_seq);
|
|
|
|
/* virtio_gpu_object */
|
|
int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
|
|
struct virtio_gpu_object_params *params,
|
|
struct virtio_gpu_object **bo_ptr,
|
|
struct virtio_gpu_fence *fence);
|
|
void virtio_gpu_object_kunmap(struct virtio_gpu_object *bo);
|
|
int virtio_gpu_object_kmap(struct virtio_gpu_object *bo);
|
|
int virtio_gpu_object_get_sg_table(struct virtio_gpu_device *qdev,
|
|
struct virtio_gpu_object *bo);
|
|
void virtio_gpu_object_free_sg_table(struct virtio_gpu_object *bo);
|
|
int virtio_gpu_object_wait(struct virtio_gpu_object *bo, bool no_wait);
|
|
|
|
/* virtgpu_prime.c */
|
|
struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj);
|
|
struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
|
|
struct drm_device *dev, struct dma_buf_attachment *attach,
|
|
struct sg_table *sgt);
|
|
void *virtgpu_gem_prime_vmap(struct drm_gem_object *obj);
|
|
void virtgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
|
|
int virtgpu_gem_prime_mmap(struct drm_gem_object *obj,
|
|
struct vm_area_struct *vma);
|
|
|
|
static inline struct virtio_gpu_object*
|
|
virtio_gpu_object_ref(struct virtio_gpu_object *bo)
|
|
{
|
|
ttm_bo_get(&bo->tbo);
|
|
return bo;
|
|
}
|
|
|
|
static inline void virtio_gpu_object_unref(struct virtio_gpu_object **bo)
|
|
{
|
|
struct ttm_buffer_object *tbo;
|
|
|
|
if ((*bo) == NULL)
|
|
return;
|
|
tbo = &((*bo)->tbo);
|
|
ttm_bo_put(tbo);
|
|
*bo = NULL;
|
|
}
|
|
|
|
static inline u64 virtio_gpu_object_mmap_offset(struct virtio_gpu_object *bo)
|
|
{
|
|
return drm_vma_node_offset_addr(&bo->tbo.vma_node);
|
|
}
|
|
|
|
static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo,
|
|
bool no_wait)
|
|
{
|
|
int r;
|
|
|
|
r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL);
|
|
if (unlikely(r != 0)) {
|
|
if (r != -ERESTARTSYS) {
|
|
struct virtio_gpu_device *qdev =
|
|
bo->gem_base.dev->dev_private;
|
|
dev_err(qdev->dev, "%p reserve failed\n", bo);
|
|
}
|
|
return r;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline void virtio_gpu_object_unreserve(struct virtio_gpu_object *bo)
|
|
{
|
|
ttm_bo_unreserve(&bo->tbo);
|
|
}
|
|
|
|
/* virgl debufs */
|
|
int virtio_gpu_debugfs_init(struct drm_minor *minor);
|
|
|
|
#endif
|