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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d 
 kernel/drivers/gpu/drm/virtio/virtgpu_drv.h
....@@ -31,16 +31,15 @@
3131 #include <linux/virtio_config.h>
3232 #include <linux/virtio_gpu.h>
3333 
34
-#include <drm/drmP.h>
35
-#include <drm/drm_gem.h>
3634 #include <drm/drm_atomic.h>
37
-#include <drm/drm_crtc_helper.h>
35
+#include <drm/drm_drv.h>
3836 #include <drm/drm_encoder.h>
3937 #include <drm/drm_fb_helper.h>
40
-#include <drm/ttm/ttm_bo_api.h>
41
-#include <drm/ttm/ttm_bo_driver.h>
42
-#include <drm/ttm/ttm_placement.h>
43
-#include <drm/ttm/ttm_module.h>
38
+#include <drm/drm_gem.h>
39
+#include <drm/drm_gem_shmem_helper.h>
40
+#include <drm/drm_ioctl.h>
41
+#include <drm/drm_probe_helper.h>
42
+#include <drm/virtgpu_drm.h>
4443 
4544 #define DRIVER_NAME "virtio_gpu"
4645 #define DRIVER_DESC "virtio GPU"
....@@ -49,6 +48,10 @@
4948 #define DRIVER_MAJOR 0
5049 #define DRIVER_MINOR 1
5150 #define DRIVER_PATCHLEVEL 0
51
+
52
+#define UUID_INITIALIZING 0
53
+#define UUID_INITIALIZED 1
54
+#define UUID_INITIALIZATION_FAILED 2
5255 
5356 struct virtio_gpu_object_params {
5457 	uint32_t format;
....@@ -68,21 +71,32 @@
6871 };
6972 
7073 struct virtio_gpu_object {
71
-	struct drm_gem_object gem_base;
74
+	struct drm_gem_shmem_object base;
7275 	uint32_t hw_res_handle;
73
-
74
-	struct sg_table *pages;
75
-	uint32_t mapped;
76
-	void *vmap;
7776 	bool dumb;
78
-	struct ttm_place                placement_code;
79
-	struct ttm_placement		placement;
80
-	struct ttm_buffer_object	tbo;
81
-	struct ttm_bo_kmap_obj		kmap;
8277 	bool created;
78
+
79
+	int uuid_state;
80
+	uuid_t uuid;
8381 };
8482 #define gem_to_virtio_gpu_obj(gobj) \
85
-	container_of((gobj), struct virtio_gpu_object, gem_base)
83
+	container_of((gobj), struct virtio_gpu_object, base.base)
84
+
85
+struct virtio_gpu_object_shmem {
86
+	struct virtio_gpu_object base;
87
+	struct sg_table *pages;
88
+	uint32_t mapped;
89
+};
90
+
91
+#define to_virtio_gpu_shmem(virtio_gpu_object) \
92
+	container_of((virtio_gpu_object), struct virtio_gpu_object_shmem, base)
93
+
94
+struct virtio_gpu_object_array {
95
+	struct ww_acquire_ctx ticket;
96
+	struct list_head next;
97
+	u32 nents, total;
98
+	struct drm_gem_object *objs[];
99
+};
86100 
87101 struct virtio_gpu_vbuffer;
88102 struct virtio_gpu_device;
....@@ -103,8 +117,6 @@
103117 	struct virtio_gpu_fence_driver *drv;
104118 	struct list_head node;
105119 };
106
-#define to_virtio_fence(x) \
107
-	container_of(x, struct virtio_gpu_fence, f)
108120 
109121 struct virtio_gpu_vbuffer {
110122 	char *buf;
....@@ -115,9 +127,10 @@
115127 
116128 	char *resp_buf;
117129 	int resp_size;
118
-
119130 	virtio_gpu_resp_cb resp_cb;
131
+	void *resp_cb_data;
120132 
133
+	struct virtio_gpu_object_array *objs;
121134 	struct list_head list;
122135 };
123136 
....@@ -131,31 +144,17 @@
131144 	struct edid *edid;
132145 	int cur_x;
133146 	int cur_y;
134
-	bool enabled;
147
+	bool needs_modeset;
135148 };
136149 #define drm_crtc_to_virtio_gpu_output(x) \
137150 	container_of(x, struct virtio_gpu_output, crtc)
138
-#define drm_connector_to_virtio_gpu_output(x) \
139
-	container_of(x, struct virtio_gpu_output, conn)
140
-#define drm_encoder_to_virtio_gpu_output(x) \
141
-	container_of(x, struct virtio_gpu_output, enc)
142151 
143152 struct virtio_gpu_framebuffer {
144153 	struct drm_framebuffer base;
145
-	int x1, y1, x2, y2; /* dirty rect */
146
-	spinlock_t dirty_lock;
147
-	uint32_t hw_res_handle;
148154 	struct virtio_gpu_fence *fence;
149155 };
150156 #define to_virtio_gpu_framebuffer(x) \
151157 	container_of(x, struct virtio_gpu_framebuffer, base)
152
-
153
-struct virtio_gpu_mman {
154
-	struct ttm_bo_global_ref        bo_global_ref;
155
-	struct drm_global_reference	mem_global_ref;
156
-	bool				mem_global_referenced;
157
-	struct ttm_bo_device		bdev;
158
-};
159158 
160159 struct virtio_gpu_queue {
161160 	struct virtqueue *vq;
....@@ -185,15 +184,14 @@
185184 
186185 	struct virtio_device *vdev;
187186 
188
-	struct virtio_gpu_mman mman;
189
-
190187 	struct virtio_gpu_output outputs[VIRTIO_GPU_MAX_SCANOUTS];
191188 	uint32_t num_scanouts;
192189 
193190 	struct virtio_gpu_queue ctrlq;
194191 	struct virtio_gpu_queue cursorq;
195192 	struct kmem_cache *vbufs;
196
-	bool vqs_ready;
193
+
194
+	atomic_t pending_commands;
197195 
198196 	struct ida	resource_ida;
199197 
....@@ -208,48 +206,46 @@
208206 
209207 	bool has_virgl_3d;
210208 	bool has_edid;
209
+	bool has_indirect;
210
+	bool has_resource_assign_uuid;
211211 
212212 	struct work_struct config_changed_work;
213
+
214
+	struct work_struct obj_free_work;
215
+	spinlock_t obj_free_lock;
216
+	struct list_head obj_free_list;
213217 
214218 	struct virtio_gpu_drv_capset *capsets;
215219 	uint32_t num_capsets;
216220 	struct list_head cap_cache;
221
+
222
+	/* protects resource state when exporting */
223
+	spinlock_t resource_export_lock;
217224 };
218225 
219226 struct virtio_gpu_fpriv {
220227 	uint32_t ctx_id;
228
+	bool context_created;
229
+	struct mutex context_lock;
221230 };
222231 
223
-/* virtio_ioctl.c */
232
+/* virtgpu_ioctl.c */
224233 #define DRM_VIRTIO_NUM_IOCTLS 10
225234 extern struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS];
226
-int virtio_gpu_object_list_validate(struct ww_acquire_ctx *ticket,
227
-				    struct list_head *head);
228
-void virtio_gpu_unref_list(struct list_head *head);
235
+void virtio_gpu_create_context(struct drm_device *dev, struct drm_file *file);
229236 
230
-/* virtio_kms.c */
237
+/* virtgpu_kms.c */
231238 int virtio_gpu_init(struct drm_device *dev);
232239 void virtio_gpu_deinit(struct drm_device *dev);
240
+void virtio_gpu_release(struct drm_device *dev);
233241 int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file);
234242 void virtio_gpu_driver_postclose(struct drm_device *dev, struct drm_file *file);
235243 
236
-/* virtio_gem.c */
237
-void virtio_gpu_gem_free_object(struct drm_gem_object *gem_obj);
238
-int virtio_gpu_gem_init(struct virtio_gpu_device *vgdev);
239
-void virtio_gpu_gem_fini(struct virtio_gpu_device *vgdev);
240
-int virtio_gpu_gem_create(struct drm_file *file,
241
-			  struct drm_device *dev,
242
-			  struct virtio_gpu_object_params *params,
243
-			  struct drm_gem_object **obj_p,
244
-			  uint32_t *handle_p);
244
+/* virtgpu_gem.c */
245245 int virtio_gpu_gem_object_open(struct drm_gem_object *obj,
246246 			       struct drm_file *file);
247247 void virtio_gpu_gem_object_close(struct drm_gem_object *obj,
248248 				 struct drm_file *file);
249
-struct virtio_gpu_object*
250
-virtio_gpu_alloc_object(struct drm_device *dev,
251
-			struct virtio_gpu_object_params *params,
252
-			struct virtio_gpu_fence *fence);
253249 int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
254250 				struct drm_device *dev,
255251 				struct drm_mode_create_dumb *args);
....@@ -257,24 +253,35 @@
257253 			      struct drm_device *dev,
258254 			      uint32_t handle, uint64_t *offset_p);
259255 
260
-/* virtio_fb */
261
-int virtio_gpu_surface_dirty(struct virtio_gpu_framebuffer *qfb,
262
-			     struct drm_clip_rect *clips,
263
-			     unsigned int num_clips);
264
-/* virtio vg */
256
+struct virtio_gpu_object_array *virtio_gpu_array_alloc(u32 nents);
257
+struct virtio_gpu_object_array*
258
+virtio_gpu_array_from_handles(struct drm_file *drm_file, u32 *handles, u32 nents);
259
+void virtio_gpu_array_add_obj(struct virtio_gpu_object_array *objs,
260
+			      struct drm_gem_object *obj);
261
+int virtio_gpu_array_lock_resv(struct virtio_gpu_object_array *objs);
262
+void virtio_gpu_array_unlock_resv(struct virtio_gpu_object_array *objs);
263
+void virtio_gpu_array_add_fence(struct virtio_gpu_object_array *objs,
264
+				struct dma_fence *fence);
265
+void virtio_gpu_array_put_free(struct virtio_gpu_object_array *objs);
266
+void virtio_gpu_array_put_free_delayed(struct virtio_gpu_device *vgdev,
267
+				       struct virtio_gpu_object_array *objs);
268
+void virtio_gpu_array_put_free_work(struct work_struct *work);
269
+
270
+/* virtgpu_vq.c */
265271 int virtio_gpu_alloc_vbufs(struct virtio_gpu_device *vgdev);
266272 void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev);
267273 void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
268274 				    struct virtio_gpu_object *bo,
269275 				    struct virtio_gpu_object_params *params,
276
+				    struct virtio_gpu_object_array *objs,
270277 				    struct virtio_gpu_fence *fence);
271278 void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
272
-				   uint32_t resource_id);
279
+				   struct virtio_gpu_object *bo);
273280 void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
274
-					struct virtio_gpu_object *bo,
275281 					uint64_t offset,
276
-					__le32 width, __le32 height,
277
-					__le32 x, __le32 y,
282
+					uint32_t width, uint32_t height,
283
+					uint32_t x, uint32_t y,
284
+					struct virtio_gpu_object_array *objs,
278285 					struct virtio_gpu_fence *fence);
279286 void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
280287 				   uint32_t resource_id,
....@@ -284,11 +291,10 @@
284291 				uint32_t scanout_id, uint32_t resource_id,
285292 				uint32_t width, uint32_t height,
286293 				uint32_t x, uint32_t y);
287
-int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
288
-			     struct virtio_gpu_object *obj,
289
-			     struct virtio_gpu_fence *fence);
290
-void virtio_gpu_object_detach(struct virtio_gpu_device *vgdev,
291
-			      struct virtio_gpu_object *obj);
294
+void virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
295
+			      struct virtio_gpu_object *obj,
296
+			      struct virtio_gpu_mem_entry *ents,
297
+			      unsigned int nents);
292298 int virtio_gpu_attach_status_page(struct virtio_gpu_device *vgdev);
293299 int virtio_gpu_detach_status_page(struct virtio_gpu_device *vgdev);
294300 void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev,
....@@ -305,28 +311,32 @@
305311 				    uint32_t id);
306312 void virtio_gpu_cmd_context_attach_resource(struct virtio_gpu_device *vgdev,
307313 					    uint32_t ctx_id,
308
-					    uint32_t resource_id);
314
+					    struct virtio_gpu_object_array *objs);
309315 void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
310316 					    uint32_t ctx_id,
311
-					    uint32_t resource_id);
317
+					    struct virtio_gpu_object_array *objs);
312318 void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
313319 			   void *data, uint32_t data_size,
314
-			   uint32_t ctx_id, struct virtio_gpu_fence *fence);
320
+			   uint32_t ctx_id,
321
+			   struct virtio_gpu_object_array *objs,
322
+			   struct virtio_gpu_fence *fence);
315323 void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
316
-					  uint32_t resource_id, uint32_t ctx_id,
324
+					  uint32_t ctx_id,
317325 					  uint64_t offset, uint32_t level,
318
-					  struct virtio_gpu_box *box,
326
+					  struct drm_virtgpu_3d_box *box,
327
+					  struct virtio_gpu_object_array *objs,
319328 					  struct virtio_gpu_fence *fence);
320329 void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
321
-					struct virtio_gpu_object *bo,
322330 					uint32_t ctx_id,
323331 					uint64_t offset, uint32_t level,
324
-					struct virtio_gpu_box *box,
332
+					struct drm_virtgpu_3d_box *box,
333
+					struct virtio_gpu_object_array *objs,
325334 					struct virtio_gpu_fence *fence);
326335 void
327336 virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
328337 				  struct virtio_gpu_object *bo,
329338 				  struct virtio_gpu_object_params *params,
339
+				  struct virtio_gpu_object_array *objs,
330340 				  struct virtio_gpu_fence *fence);
331341 void virtio_gpu_ctrl_ack(struct virtqueue *vq);
332342 void virtio_gpu_cursor_ack(struct virtqueue *vq);
....@@ -335,27 +345,23 @@
335345 void virtio_gpu_dequeue_cursor_func(struct work_struct *work);
336346 void virtio_gpu_dequeue_fence_func(struct work_struct *work);
337347 
338
-/* virtio_gpu_display.c */
339
-int virtio_gpu_framebuffer_init(struct drm_device *dev,
340
-				struct virtio_gpu_framebuffer *vgfb,
341
-				const struct drm_mode_fb_cmd2 *mode_cmd,
342
-				struct drm_gem_object *obj);
343
-void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
348
+void virtio_gpu_notify(struct virtio_gpu_device *vgdev);
349
+
350
+int
351
+virtio_gpu_cmd_resource_assign_uuid(struct virtio_gpu_device *vgdev,
352
+				    struct virtio_gpu_object_array *objs);
353
+
354
+/* virtgpu_display.c */
355
+int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
344356 void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev);
345357 
346
-/* virtio_gpu_plane.c */
358
+/* virtgpu_plane.c */
347359 uint32_t virtio_gpu_translate_format(uint32_t drm_fourcc);
348360 struct drm_plane *virtio_gpu_plane_init(struct virtio_gpu_device *vgdev,
349361 					enum drm_plane_type type,
350362 					int index);
351363 
352
-/* virtio_gpu_ttm.c */
353
-int virtio_gpu_ttm_init(struct virtio_gpu_device *vgdev);
354
-void virtio_gpu_ttm_fini(struct virtio_gpu_device *vgdev);
355
-int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma);
356
-
357
-/* virtio_gpu_fence.c */
358
-bool virtio_fence_signaled(struct dma_fence *f);
364
+/* virtgpu_fence.c */
359365 struct virtio_gpu_fence *virtio_gpu_fence_alloc(
360366 	struct virtio_gpu_device *vgdev);
361367 void virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
....@@ -364,74 +370,29 @@
364370 void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev,
365371 				    u64 last_seq);
366372 
367
-/* virtio_gpu_object */
373
+/* virtgpu_object.c */
374
+void virtio_gpu_cleanup_object(struct virtio_gpu_object *bo);
375
+struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev,
376
+						size_t size);
368377 int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
369378 			     struct virtio_gpu_object_params *params,
370379 			     struct virtio_gpu_object **bo_ptr,
371380 			     struct virtio_gpu_fence *fence);
372
-void virtio_gpu_object_kunmap(struct virtio_gpu_object *bo);
373
-int virtio_gpu_object_kmap(struct virtio_gpu_object *bo);
374
-int virtio_gpu_object_get_sg_table(struct virtio_gpu_device *qdev,
375
-				   struct virtio_gpu_object *bo);
376
-void virtio_gpu_object_free_sg_table(struct virtio_gpu_object *bo);
377
-int virtio_gpu_object_wait(struct virtio_gpu_object *bo, bool no_wait);
381
+
382
+bool virtio_gpu_is_shmem(struct virtio_gpu_object *bo);
378383 
379384 /* virtgpu_prime.c */
380
-struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj);
385
+struct dma_buf *virtgpu_gem_prime_export(struct drm_gem_object *obj,
386
+					 int flags);
387
+struct drm_gem_object *virtgpu_gem_prime_import(struct drm_device *dev,
388
+						struct dma_buf *buf);
389
+int virtgpu_gem_prime_get_uuid(struct drm_gem_object *obj,
390
+			       uuid_t *uuid);
381391 struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
382392 	struct drm_device *dev, struct dma_buf_attachment *attach,
383393 	struct sg_table *sgt);
384
-void *virtgpu_gem_prime_vmap(struct drm_gem_object *obj);
385
-void virtgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
386
-int virtgpu_gem_prime_mmap(struct drm_gem_object *obj,
387
-			   struct vm_area_struct *vma);
388394 
389
-static inline struct virtio_gpu_object*
390
-virtio_gpu_object_ref(struct virtio_gpu_object *bo)
391
-{
392
-	ttm_bo_get(&bo->tbo);
393
-	return bo;
394
-}
395
-
396
-static inline void virtio_gpu_object_unref(struct virtio_gpu_object **bo)
397
-{
398
-	struct ttm_buffer_object *tbo;
399
-
400
-	if ((*bo) == NULL)
401
-		return;
402
-	tbo = &((*bo)->tbo);
403
-	ttm_bo_put(tbo);
404
-	*bo = NULL;
405
-}
406
-
407
-static inline u64 virtio_gpu_object_mmap_offset(struct virtio_gpu_object *bo)
408
-{
409
-	return drm_vma_node_offset_addr(&bo->tbo.vma_node);
410
-}
411
-
412
-static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo,
413
-					 bool no_wait)
414
-{
415
-	int r;
416
-
417
-	r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL);
418
-	if (unlikely(r != 0)) {
419
-		if (r != -ERESTARTSYS) {
420
-			struct virtio_gpu_device *qdev =
421
-				bo->gem_base.dev->dev_private;
422
-			dev_err(qdev->dev, "%p reserve failed\n", bo);
423
-		}
424
-		return r;
425
-	}
426
-	return 0;
427
-}
428
-
429
-static inline void virtio_gpu_object_unreserve(struct virtio_gpu_object *bo)
430
-{
431
-	ttm_bo_unreserve(&bo->tbo);
432
-}
433
-
434
-/* virgl debufs */
435
-int virtio_gpu_debugfs_init(struct drm_minor *minor);
395
+/* virtgpu_debugfs.c */
396
+void virtio_gpu_debugfs_init(struct drm_minor *minor);
436397 
437398 #endif