1 /**************************************************************************
2 *
3 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include "drmP.h"
29 #include "vmwgfx_drv.h"
30 #include "ttm/ttm_placement.h"
31 #include "ttm/ttm_bo_driver.h"
32 #include "ttm/ttm_object.h"
33 #include "ttm/ttm_module.h"
34
35 #define VMWGFX_DRIVER_NAME "vmwgfx"
36 #define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
37 #define VMWGFX_CHIP_SVGAII 0
38 #define VMW_FB_RESERVATION 0
39
40 /**
41 * Fully encoded drm commands. Might move to vmw_drm.h
42 */
43
44 #define DRM_IOCTL_VMW_GET_PARAM \
45 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM, \
46 struct drm_vmw_getparam_arg)
47 #define DRM_IOCTL_VMW_ALLOC_DMABUF \
48 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF, \
49 union drm_vmw_alloc_dmabuf_arg)
50 #define DRM_IOCTL_VMW_UNREF_DMABUF \
51 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF, \
52 struct drm_vmw_unref_dmabuf_arg)
53 #define DRM_IOCTL_VMW_CURSOR_BYPASS \
54 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS, \
55 struct drm_vmw_cursor_bypass_arg)
56
57 #define DRM_IOCTL_VMW_CONTROL_STREAM \
58 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM, \
59 struct drm_vmw_control_stream_arg)
60 #define DRM_IOCTL_VMW_CLAIM_STREAM \
61 DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM, \
62 struct drm_vmw_stream_arg)
63 #define DRM_IOCTL_VMW_UNREF_STREAM \
64 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM, \
65 struct drm_vmw_stream_arg)
66
67 #define DRM_IOCTL_VMW_CREATE_CONTEXT \
68 DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT, \
69 struct drm_vmw_context_arg)
70 #define DRM_IOCTL_VMW_UNREF_CONTEXT \
71 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT, \
72 struct drm_vmw_context_arg)
73 #define DRM_IOCTL_VMW_CREATE_SURFACE \
74 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE, \
75 union drm_vmw_surface_create_arg)
76 #define DRM_IOCTL_VMW_UNREF_SURFACE \
77 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE, \
78 struct drm_vmw_surface_arg)
79 #define DRM_IOCTL_VMW_REF_SURFACE \
80 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE, \
81 union drm_vmw_surface_reference_arg)
82 #define DRM_IOCTL_VMW_EXECBUF \
83 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF, \
84 struct drm_vmw_execbuf_arg)
85 #define DRM_IOCTL_VMW_FIFO_DEBUG \
86 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FIFO_DEBUG, \
87 struct drm_vmw_fifo_debug_arg)
88 #define DRM_IOCTL_VMW_FENCE_WAIT \
89 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT, \
90 struct drm_vmw_fence_wait_arg)
91 #define DRM_IOCTL_VMW_UPDATE_LAYOUT \
92 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT, \
93 struct drm_vmw_update_layout_arg)
94
95
96 /**
97 * The core DRM version of this macro doesn't account for
98 * DRM_COMMAND_BASE.
99 */
100
101 #define VMW_IOCTL_DEF(ioctl, func, flags) \
102 [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = {DRM_##ioctl, flags, func, DRM_IOCTL_##ioctl}
103
104 /**
105 * Ioctl definitions.
106 */
107
108 static struct drm_ioctl_desc vmw_ioctls[] = {
109 VMW_IOCTL_DEF(VMW_GET_PARAM, vmw_getparam_ioctl,
110 DRM_AUTH | DRM_UNLOCKED),
111 VMW_IOCTL_DEF(VMW_ALLOC_DMABUF, vmw_dmabuf_alloc_ioctl,
112 DRM_AUTH | DRM_UNLOCKED),
113 VMW_IOCTL_DEF(VMW_UNREF_DMABUF, vmw_dmabuf_unref_ioctl,
114 DRM_AUTH | DRM_UNLOCKED),
115 VMW_IOCTL_DEF(VMW_CURSOR_BYPASS,
116 vmw_kms_cursor_bypass_ioctl,
117 DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
118
119 VMW_IOCTL_DEF(VMW_CONTROL_STREAM, vmw_overlay_ioctl,
120 DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
121 VMW_IOCTL_DEF(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
122 DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
123 VMW_IOCTL_DEF(VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
124 DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
125
126 VMW_IOCTL_DEF(VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
127 DRM_AUTH | DRM_UNLOCKED),
128 VMW_IOCTL_DEF(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
129 DRM_AUTH | DRM_UNLOCKED),
130 VMW_IOCTL_DEF(VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
131 DRM_AUTH | DRM_UNLOCKED),
132 VMW_IOCTL_DEF(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
133 DRM_AUTH | DRM_UNLOCKED),
134 VMW_IOCTL_DEF(VMW_REF_SURFACE, vmw_surface_reference_ioctl,
135 DRM_AUTH | DRM_UNLOCKED),
136 VMW_IOCTL_DEF(VMW_EXECBUF, vmw_execbuf_ioctl,
137 DRM_AUTH | DRM_UNLOCKED),
138 VMW_IOCTL_DEF(VMW_FIFO_DEBUG, vmw_fifo_debug_ioctl,
139 DRM_AUTH | DRM_ROOT_ONLY | DRM_MASTER | DRM_UNLOCKED),
140 VMW_IOCTL_DEF(VMW_FENCE_WAIT, vmw_fence_wait_ioctl,
141 DRM_AUTH | DRM_UNLOCKED),
142 VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT, vmw_kms_update_layout_ioctl,
143 DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED)
144 };
145
146 static struct pci_device_id vmw_pci_id_list[] = {
147 {0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
148 {0, 0, 0}
149 };
150
151 static int enable_fbdev;
152
153 static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
154 static void vmw_master_init(struct vmw_master *);
155 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
156 void *ptr);
157
158 MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev");
159 module_param_named(enable_fbdev, enable_fbdev, int, 0600);
160
vmw_print_capabilities(uint32_t capabilities)161 static void vmw_print_capabilities(uint32_t capabilities)
162 {
163 DRM_INFO("Capabilities:\n");
164 if (capabilities & SVGA_CAP_RECT_COPY)
165 DRM_INFO(" Rect copy.\n");
166 if (capabilities & SVGA_CAP_CURSOR)
167 DRM_INFO(" Cursor.\n");
168 if (capabilities & SVGA_CAP_CURSOR_BYPASS)
169 DRM_INFO(" Cursor bypass.\n");
170 if (capabilities & SVGA_CAP_CURSOR_BYPASS_2)
171 DRM_INFO(" Cursor bypass 2.\n");
172 if (capabilities & SVGA_CAP_8BIT_EMULATION)
173 DRM_INFO(" 8bit emulation.\n");
174 if (capabilities & SVGA_CAP_ALPHA_CURSOR)
175 DRM_INFO(" Alpha cursor.\n");
176 if (capabilities & SVGA_CAP_3D)
177 DRM_INFO(" 3D.\n");
178 if (capabilities & SVGA_CAP_EXTENDED_FIFO)
179 DRM_INFO(" Extended Fifo.\n");
180 if (capabilities & SVGA_CAP_MULTIMON)
181 DRM_INFO(" Multimon.\n");
182 if (capabilities & SVGA_CAP_PITCHLOCK)
183 DRM_INFO(" Pitchlock.\n");
184 if (capabilities & SVGA_CAP_IRQMASK)
185 DRM_INFO(" Irq mask.\n");
186 if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)
187 DRM_INFO(" Display Topology.\n");
188 if (capabilities & SVGA_CAP_GMR)
189 DRM_INFO(" GMR.\n");
190 if (capabilities & SVGA_CAP_TRACES)
191 DRM_INFO(" Traces.\n");
192 }
193
vmw_request_device(struct vmw_private * dev_priv)194 static int vmw_request_device(struct vmw_private *dev_priv)
195 {
196 int ret;
197
198 ret = vmw_fifo_init(dev_priv, &dev_priv->fifo);
199 if (unlikely(ret != 0)) {
200 DRM_ERROR("Unable to initialize FIFO.\n");
201 return ret;
202 }
203
204 return 0;
205 }
206
vmw_release_device(struct vmw_private * dev_priv)207 static void vmw_release_device(struct vmw_private *dev_priv)
208 {
209 vmw_fifo_release(dev_priv, &dev_priv->fifo);
210 }
211
vmw_3d_resource_inc(struct vmw_private * dev_priv)212 int vmw_3d_resource_inc(struct vmw_private *dev_priv)
213 {
214 int ret = 0;
215
216 mutex_lock(&dev_priv->release_mutex);
217 if (unlikely(dev_priv->num_3d_resources++ == 0)) {
218 ret = vmw_request_device(dev_priv);
219 if (unlikely(ret != 0))
220 --dev_priv->num_3d_resources;
221 }
222 mutex_unlock(&dev_priv->release_mutex);
223 return ret;
224 }
225
226
vmw_3d_resource_dec(struct vmw_private * dev_priv)227 void vmw_3d_resource_dec(struct vmw_private *dev_priv)
228 {
229 int32_t n3d;
230
231 mutex_lock(&dev_priv->release_mutex);
232 if (unlikely(--dev_priv->num_3d_resources == 0))
233 vmw_release_device(dev_priv);
234 n3d = (int32_t) dev_priv->num_3d_resources;
235 mutex_unlock(&dev_priv->release_mutex);
236
237 BUG_ON(n3d < 0);
238 }
239
vmw_driver_load(struct drm_device * dev,unsigned long chipset)240 static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
241 {
242 struct vmw_private *dev_priv;
243 int ret;
244 uint32_t svga_id;
245
246 dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
247 if (unlikely(dev_priv == NULL)) {
248 DRM_ERROR("Failed allocating a device private struct.\n");
249 return -ENOMEM;
250 }
251 memset(dev_priv, 0, sizeof(*dev_priv));
252
253 dev_priv->dev = dev;
254 dev_priv->vmw_chipset = chipset;
255 dev_priv->last_read_sequence = (uint32_t) -100;
256 mutex_init(&dev_priv->hw_mutex);
257 mutex_init(&dev_priv->cmdbuf_mutex);
258 mutex_init(&dev_priv->release_mutex);
259 rwlock_init(&dev_priv->resource_lock);
260 idr_init(&dev_priv->context_idr);
261 idr_init(&dev_priv->surface_idr);
262 idr_init(&dev_priv->stream_idr);
263 mutex_init(&dev_priv->init_mutex);
264 init_waitqueue_head(&dev_priv->fence_queue);
265 init_waitqueue_head(&dev_priv->fifo_queue);
266 atomic_set(&dev_priv->fence_queue_waiters, 0);
267 atomic_set(&dev_priv->fifo_queue_waiters, 0);
268
269 dev_priv->io_start = pci_resource_start(dev->pdev, 0);
270 dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
271 dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
272
273 dev_priv->enable_fb = enable_fbdev;
274
275 mutex_lock(&dev_priv->hw_mutex);
276
277 vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
278 svga_id = vmw_read(dev_priv, SVGA_REG_ID);
279 if (svga_id != SVGA_ID_2) {
280 ret = -ENOSYS;
281 DRM_ERROR("Unsuported SVGA ID 0x%x\n", svga_id);
282 mutex_unlock(&dev_priv->hw_mutex);
283 goto out_err0;
284 }
285
286 dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
287
288 if (dev_priv->capabilities & SVGA_CAP_GMR) {
289 dev_priv->max_gmr_descriptors =
290 vmw_read(dev_priv,
291 SVGA_REG_GMR_MAX_DESCRIPTOR_LENGTH);
292 dev_priv->max_gmr_ids =
293 vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
294 }
295
296 dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
297 dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
298 dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
299 dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
300
301 mutex_unlock(&dev_priv->hw_mutex);
302
303 vmw_print_capabilities(dev_priv->capabilities);
304
305 if (dev_priv->capabilities & SVGA_CAP_GMR) {
306 DRM_INFO("Max GMR ids is %u\n",
307 (unsigned)dev_priv->max_gmr_ids);
308 DRM_INFO("Max GMR descriptors is %u\n",
309 (unsigned)dev_priv->max_gmr_descriptors);
310 }
311 DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
312 dev_priv->vram_start, dev_priv->vram_size / 1024);
313 DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
314 dev_priv->mmio_start, dev_priv->mmio_size / 1024);
315
316 ret = vmw_ttm_global_init(dev_priv);
317 if (unlikely(ret != 0))
318 goto out_err0;
319
320
321 vmw_master_init(&dev_priv->fbdev_master);
322 ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
323 dev_priv->active_master = &dev_priv->fbdev_master;
324
325
326 ret = ttm_bo_device_init(&dev_priv->bdev,
327 dev_priv->bo_global_ref.ref.object,
328 &vmw_bo_driver, VMWGFX_FILE_PAGE_OFFSET,
329 false);
330 if (unlikely(ret != 0)) {
331 DRM_ERROR("Failed initializing TTM buffer object driver.\n");
332 goto out_err1;
333 }
334
335 ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
336 (dev_priv->vram_size >> PAGE_SHIFT));
337 if (unlikely(ret != 0)) {
338 DRM_ERROR("Failed initializing memory manager for VRAM.\n");
339 goto out_err2;
340 }
341
342 dev_priv->has_gmr = true;
343 if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR,
344 dev_priv->max_gmr_ids) != 0) {
345 DRM_INFO("No GMR memory available. "
346 "Graphics memory resources are very limited.\n");
347 dev_priv->has_gmr = false;
348 }
349
350 dev_priv->mmio_mtrr = drm_mtrr_add(dev_priv->mmio_start,
351 dev_priv->mmio_size, DRM_MTRR_WC);
352
353 dev_priv->mmio_virt = ioremap_wc(dev_priv->mmio_start,
354 dev_priv->mmio_size);
355
356 if (unlikely(dev_priv->mmio_virt == NULL)) {
357 ret = -ENOMEM;
358 DRM_ERROR("Failed mapping MMIO.\n");
359 goto out_err3;
360 }
361
362 /* Need mmio memory to check for fifo pitchlock cap. */
363 if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
364 !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
365 !vmw_fifo_have_pitchlock(dev_priv)) {
366 ret = -ENOSYS;
367 DRM_ERROR("Hardware has no pitchlock\n");
368 goto out_err4;
369 }
370
371 dev_priv->tdev = ttm_object_device_init
372 (dev_priv->mem_global_ref.object, 12);
373
374 if (unlikely(dev_priv->tdev == NULL)) {
375 DRM_ERROR("Unable to initialize TTM object management.\n");
376 ret = -ENOMEM;
377 goto out_err4;
378 }
379
380 dev->dev_private = dev_priv;
381
382 ret = pci_request_regions(dev->pdev, "vmwgfx probe");
383 dev_priv->stealth = (ret != 0);
384 if (dev_priv->stealth) {
385 /**
386 * Request at least the mmio PCI resource.
387 */
388
389 DRM_INFO("It appears like vesafb is loaded. "
390 "Ignore above error if any.\n");
391 ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
392 if (unlikely(ret != 0)) {
393 DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
394 goto out_no_device;
395 }
396 }
397 ret = vmw_kms_init(dev_priv);
398 if (unlikely(ret != 0))
399 goto out_no_kms;
400 vmw_overlay_init(dev_priv);
401 if (dev_priv->enable_fb) {
402 ret = vmw_3d_resource_inc(dev_priv);
403 if (unlikely(ret != 0))
404 goto out_no_fifo;
405 vmw_kms_save_vga(dev_priv);
406 vmw_fb_init(dev_priv);
407 DRM_INFO("%s", vmw_fifo_have_3d(dev_priv) ?
408 "Detected device 3D availability.\n" :
409 "Detected no device 3D availability.\n");
410 } else {
411 DRM_INFO("Delayed 3D detection since we're not "
412 "running the device in SVGA mode yet.\n");
413 }
414
415 if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
416 ret = drm_irq_install(dev);
417 if (unlikely(ret != 0)) {
418 DRM_ERROR("Failed installing irq: %d\n", ret);
419 goto out_no_irq;
420 }
421 }
422
423 dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
424 register_pm_notifier(&dev_priv->pm_nb);
425
426 return 0;
427
428 out_no_irq:
429 if (dev_priv->enable_fb) {
430 vmw_fb_close(dev_priv);
431 vmw_kms_restore_vga(dev_priv);
432 vmw_3d_resource_dec(dev_priv);
433 }
434 out_no_fifo:
435 vmw_overlay_close(dev_priv);
436 vmw_kms_close(dev_priv);
437 out_no_kms:
438 if (dev_priv->stealth)
439 pci_release_region(dev->pdev, 2);
440 else
441 pci_release_regions(dev->pdev);
442 out_no_device:
443 ttm_object_device_release(&dev_priv->tdev);
444 out_err4:
445 iounmap(dev_priv->mmio_virt);
446 out_err3:
447 drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
448 dev_priv->mmio_size, DRM_MTRR_WC);
449 if (dev_priv->has_gmr)
450 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
451 (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
452 out_err2:
453 (void)ttm_bo_device_release(&dev_priv->bdev);
454 out_err1:
455 vmw_ttm_global_release(dev_priv);
456 out_err0:
457 idr_destroy(&dev_priv->surface_idr);
458 idr_destroy(&dev_priv->context_idr);
459 idr_destroy(&dev_priv->stream_idr);
460 kfree(dev_priv);
461 return ret;
462 }
463
vmw_driver_unload(struct drm_device * dev)464 static int vmw_driver_unload(struct drm_device *dev)
465 {
466 struct vmw_private *dev_priv = vmw_priv(dev);
467
468 unregister_pm_notifier(&dev_priv->pm_nb);
469
470 if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
471 drm_irq_uninstall(dev_priv->dev);
472 if (dev_priv->enable_fb) {
473 vmw_fb_close(dev_priv);
474 vmw_kms_restore_vga(dev_priv);
475 vmw_3d_resource_dec(dev_priv);
476 }
477 vmw_kms_close(dev_priv);
478 vmw_overlay_close(dev_priv);
479 if (dev_priv->stealth)
480 pci_release_region(dev->pdev, 2);
481 else
482 pci_release_regions(dev->pdev);
483
484 ttm_object_device_release(&dev_priv->tdev);
485 iounmap(dev_priv->mmio_virt);
486 drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
487 dev_priv->mmio_size, DRM_MTRR_WC);
488 if (dev_priv->has_gmr)
489 (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
490 (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
491 (void)ttm_bo_device_release(&dev_priv->bdev);
492 vmw_ttm_global_release(dev_priv);
493 idr_destroy(&dev_priv->surface_idr);
494 idr_destroy(&dev_priv->context_idr);
495 idr_destroy(&dev_priv->stream_idr);
496
497 kfree(dev_priv);
498
499 return 0;
500 }
501
vmw_postclose(struct drm_device * dev,struct drm_file * file_priv)502 static void vmw_postclose(struct drm_device *dev,
503 struct drm_file *file_priv)
504 {
505 struct vmw_fpriv *vmw_fp;
506
507 vmw_fp = vmw_fpriv(file_priv);
508 ttm_object_file_release(&vmw_fp->tfile);
509 if (vmw_fp->locked_master)
510 drm_master_put(&vmw_fp->locked_master);
511 kfree(vmw_fp);
512 }
513
vmw_driver_open(struct drm_device * dev,struct drm_file * file_priv)514 static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
515 {
516 struct vmw_private *dev_priv = vmw_priv(dev);
517 struct vmw_fpriv *vmw_fp;
518 int ret = -ENOMEM;
519
520 vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
521 if (unlikely(vmw_fp == NULL))
522 return ret;
523
524 vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
525 if (unlikely(vmw_fp->tfile == NULL))
526 goto out_no_tfile;
527
528 file_priv->driver_priv = vmw_fp;
529
530 if (unlikely(dev_priv->bdev.dev_mapping == NULL))
531 dev_priv->bdev.dev_mapping =
532 file_priv->filp->f_path.dentry->d_inode->i_mapping;
533
534 return 0;
535
536 out_no_tfile:
537 kfree(vmw_fp);
538 return ret;
539 }
540
vmw_unlocked_ioctl(struct file * filp,unsigned int cmd,unsigned long arg)541 static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
542 unsigned long arg)
543 {
544 struct drm_file *file_priv = filp->private_data;
545 struct drm_device *dev = file_priv->minor->dev;
546 unsigned int nr = DRM_IOCTL_NR(cmd);
547
548 /*
549 * Do extra checking on driver private ioctls.
550 */
551
552 if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
553 && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
554 struct drm_ioctl_desc *ioctl =
555 &vmw_ioctls[nr - DRM_COMMAND_BASE];
556
557 if (unlikely(ioctl->cmd_drv != cmd)) {
558 DRM_ERROR("Invalid command format, ioctl %d\n",
559 nr - DRM_COMMAND_BASE);
560 return -EINVAL;
561 }
562 }
563
564 return drm_ioctl(filp, cmd, arg);
565 }
566
vmw_firstopen(struct drm_device * dev)567 static int vmw_firstopen(struct drm_device *dev)
568 {
569 struct vmw_private *dev_priv = vmw_priv(dev);
570 dev_priv->is_opened = true;
571
572 return 0;
573 }
574
vmw_lastclose(struct drm_device * dev)575 static void vmw_lastclose(struct drm_device *dev)
576 {
577 struct vmw_private *dev_priv = vmw_priv(dev);
578 struct drm_crtc *crtc;
579 struct drm_mode_set set;
580 int ret;
581
582 /**
583 * Do nothing on the lastclose call from drm_unload.
584 */
585
586 if (!dev_priv->is_opened)
587 return;
588
589 dev_priv->is_opened = false;
590 set.x = 0;
591 set.y = 0;
592 set.fb = NULL;
593 set.mode = NULL;
594 set.connectors = NULL;
595 set.num_connectors = 0;
596
597 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
598 set.crtc = crtc;
599 ret = crtc->funcs->set_config(&set);
600 WARN_ON(ret != 0);
601 }
602
603 }
604
vmw_master_init(struct vmw_master * vmaster)605 static void vmw_master_init(struct vmw_master *vmaster)
606 {
607 ttm_lock_init(&vmaster->lock);
608 INIT_LIST_HEAD(&vmaster->fb_surf);
609 mutex_init(&vmaster->fb_surf_mutex);
610 }
611
vmw_master_create(struct drm_device * dev,struct drm_master * master)612 static int vmw_master_create(struct drm_device *dev,
613 struct drm_master *master)
614 {
615 struct vmw_master *vmaster;
616
617 vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
618 if (unlikely(vmaster == NULL))
619 return -ENOMEM;
620
621 vmw_master_init(vmaster);
622 ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
623 master->driver_priv = vmaster;
624
625 return 0;
626 }
627
vmw_master_destroy(struct drm_device * dev,struct drm_master * master)628 static void vmw_master_destroy(struct drm_device *dev,
629 struct drm_master *master)
630 {
631 struct vmw_master *vmaster = vmw_master(master);
632
633 master->driver_priv = NULL;
634 kfree(vmaster);
635 }
636
637
vmw_master_set(struct drm_device * dev,struct drm_file * file_priv,bool from_open)638 static int vmw_master_set(struct drm_device *dev,
639 struct drm_file *file_priv,
640 bool from_open)
641 {
642 struct vmw_private *dev_priv = vmw_priv(dev);
643 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
644 struct vmw_master *active = dev_priv->active_master;
645 struct vmw_master *vmaster = vmw_master(file_priv->master);
646 int ret = 0;
647
648 if (!dev_priv->enable_fb) {
649 ret = vmw_3d_resource_inc(dev_priv);
650 if (unlikely(ret != 0))
651 return ret;
652 vmw_kms_save_vga(dev_priv);
653 mutex_lock(&dev_priv->hw_mutex);
654 vmw_write(dev_priv, SVGA_REG_TRACES, 0);
655 mutex_unlock(&dev_priv->hw_mutex);
656 }
657
658 if (active) {
659 BUG_ON(active != &dev_priv->fbdev_master);
660 ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile);
661 if (unlikely(ret != 0))
662 goto out_no_active_lock;
663
664 ttm_lock_set_kill(&active->lock, true, SIGTERM);
665 ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
666 if (unlikely(ret != 0)) {
667 DRM_ERROR("Unable to clean VRAM on "
668 "master drop.\n");
669 }
670
671 dev_priv->active_master = NULL;
672 }
673
674 ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
675 if (!from_open) {
676 ttm_vt_unlock(&vmaster->lock);
677 BUG_ON(vmw_fp->locked_master != file_priv->master);
678 drm_master_put(&vmw_fp->locked_master);
679 }
680
681 dev_priv->active_master = vmaster;
682
683 return 0;
684
685 out_no_active_lock:
686 if (!dev_priv->enable_fb) {
687 mutex_lock(&dev_priv->hw_mutex);
688 vmw_write(dev_priv, SVGA_REG_TRACES, 1);
689 mutex_unlock(&dev_priv->hw_mutex);
690 vmw_kms_restore_vga(dev_priv);
691 vmw_3d_resource_dec(dev_priv);
692 }
693 return ret;
694 }
695
vmw_master_drop(struct drm_device * dev,struct drm_file * file_priv,bool from_release)696 static void vmw_master_drop(struct drm_device *dev,
697 struct drm_file *file_priv,
698 bool from_release)
699 {
700 struct vmw_private *dev_priv = vmw_priv(dev);
701 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
702 struct vmw_master *vmaster = vmw_master(file_priv->master);
703 int ret;
704
705 /**
706 * Make sure the master doesn't disappear while we have
707 * it locked.
708 */
709
710 vmw_fp->locked_master = drm_master_get(file_priv->master);
711 ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile);
712 vmw_kms_idle_workqueues(vmaster);
713
714 if (unlikely((ret != 0))) {
715 DRM_ERROR("Unable to lock TTM at VT switch.\n");
716 drm_master_put(&vmw_fp->locked_master);
717 }
718
719 ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
720
721 if (!dev_priv->enable_fb) {
722 ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
723 if (unlikely(ret != 0))
724 DRM_ERROR("Unable to clean VRAM on master drop.\n");
725 mutex_lock(&dev_priv->hw_mutex);
726 vmw_write(dev_priv, SVGA_REG_TRACES, 1);
727 mutex_unlock(&dev_priv->hw_mutex);
728 vmw_kms_restore_vga(dev_priv);
729 vmw_3d_resource_dec(dev_priv);
730 }
731
732 dev_priv->active_master = &dev_priv->fbdev_master;
733 ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
734 ttm_vt_unlock(&dev_priv->fbdev_master.lock);
735
736 if (dev_priv->enable_fb)
737 vmw_fb_on(dev_priv);
738 }
739
740
vmw_remove(struct pci_dev * pdev)741 static void vmw_remove(struct pci_dev *pdev)
742 {
743 struct drm_device *dev = pci_get_drvdata(pdev);
744
745 drm_put_dev(dev);
746 }
747
vmwgfx_pm_notifier(struct notifier_block * nb,unsigned long val,void * ptr)748 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
749 void *ptr)
750 {
751 struct vmw_private *dev_priv =
752 container_of(nb, struct vmw_private, pm_nb);
753 struct vmw_master *vmaster = dev_priv->active_master;
754
755 switch (val) {
756 case PM_HIBERNATION_PREPARE:
757 case PM_SUSPEND_PREPARE:
758 ttm_suspend_lock(&vmaster->lock);
759
760 /**
761 * This empties VRAM and unbinds all GMR bindings.
762 * Buffer contents is moved to swappable memory.
763 */
764 ttm_bo_swapout_all(&dev_priv->bdev);
765
766 break;
767 case PM_POST_HIBERNATION:
768 case PM_POST_SUSPEND:
769 case PM_POST_RESTORE:
770 ttm_suspend_unlock(&vmaster->lock);
771
772 break;
773 case PM_RESTORE_PREPARE:
774 break;
775 default:
776 break;
777 }
778 return 0;
779 }
780
781 /**
782 * These might not be needed with the virtual SVGA device.
783 */
784
vmw_pci_suspend(struct pci_dev * pdev,pm_message_t state)785 static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
786 {
787 struct drm_device *dev = pci_get_drvdata(pdev);
788 struct vmw_private *dev_priv = vmw_priv(dev);
789
790 if (dev_priv->num_3d_resources != 0) {
791 DRM_INFO("Can't suspend or hibernate "
792 "while 3D resources are active.\n");
793 return -EBUSY;
794 }
795
796 pci_save_state(pdev);
797 pci_disable_device(pdev);
798 pci_set_power_state(pdev, PCI_D3hot);
799 return 0;
800 }
801
vmw_pci_resume(struct pci_dev * pdev)802 static int vmw_pci_resume(struct pci_dev *pdev)
803 {
804 pci_set_power_state(pdev, PCI_D0);
805 pci_restore_state(pdev);
806 return pci_enable_device(pdev);
807 }
808
vmw_pm_suspend(struct device * kdev)809 static int vmw_pm_suspend(struct device *kdev)
810 {
811 struct pci_dev *pdev = to_pci_dev(kdev);
812 struct pm_message dummy;
813
814 dummy.event = 0;
815
816 return vmw_pci_suspend(pdev, dummy);
817 }
818
vmw_pm_resume(struct device * kdev)819 static int vmw_pm_resume(struct device *kdev)
820 {
821 struct pci_dev *pdev = to_pci_dev(kdev);
822
823 return vmw_pci_resume(pdev);
824 }
825
vmw_pm_prepare(struct device * kdev)826 static int vmw_pm_prepare(struct device *kdev)
827 {
828 struct pci_dev *pdev = to_pci_dev(kdev);
829 struct drm_device *dev = pci_get_drvdata(pdev);
830 struct vmw_private *dev_priv = vmw_priv(dev);
831
832 /**
833 * Release 3d reference held by fbdev and potentially
834 * stop fifo.
835 */
836 dev_priv->suspended = true;
837 if (dev_priv->enable_fb)
838 vmw_3d_resource_dec(dev_priv);
839
840 if (dev_priv->num_3d_resources != 0) {
841
842 DRM_INFO("Can't suspend or hibernate "
843 "while 3D resources are active.\n");
844
845 if (dev_priv->enable_fb)
846 vmw_3d_resource_inc(dev_priv);
847 dev_priv->suspended = false;
848 return -EBUSY;
849 }
850
851 return 0;
852 }
853
vmw_pm_complete(struct device * kdev)854 static void vmw_pm_complete(struct device *kdev)
855 {
856 struct pci_dev *pdev = to_pci_dev(kdev);
857 struct drm_device *dev = pci_get_drvdata(pdev);
858 struct vmw_private *dev_priv = vmw_priv(dev);
859
860 /**
861 * Reclaim 3d reference held by fbdev and potentially
862 * start fifo.
863 */
864 if (dev_priv->enable_fb)
865 vmw_3d_resource_inc(dev_priv);
866
867 dev_priv->suspended = false;
868 }
869
870 static const struct dev_pm_ops vmw_pm_ops = {
871 .prepare = vmw_pm_prepare,
872 .complete = vmw_pm_complete,
873 .suspend = vmw_pm_suspend,
874 .resume = vmw_pm_resume,
875 };
876
877 static struct drm_driver driver = {
878 .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
879 DRIVER_MODESET,
880 .load = vmw_driver_load,
881 .unload = vmw_driver_unload,
882 .firstopen = vmw_firstopen,
883 .lastclose = vmw_lastclose,
884 .irq_preinstall = vmw_irq_preinstall,
885 .irq_postinstall = vmw_irq_postinstall,
886 .irq_uninstall = vmw_irq_uninstall,
887 .irq_handler = vmw_irq_handler,
888 .get_vblank_counter = vmw_get_vblank_counter,
889 .reclaim_buffers_locked = NULL,
890 .ioctls = vmw_ioctls,
891 .num_ioctls = DRM_ARRAY_SIZE(vmw_ioctls),
892 .dma_quiescent = NULL, /*vmw_dma_quiescent, */
893 .master_create = vmw_master_create,
894 .master_destroy = vmw_master_destroy,
895 .master_set = vmw_master_set,
896 .master_drop = vmw_master_drop,
897 .open = vmw_driver_open,
898 .postclose = vmw_postclose,
899 .fops = {
900 .owner = THIS_MODULE,
901 .open = drm_open,
902 .release = drm_release,
903 .unlocked_ioctl = vmw_unlocked_ioctl,
904 .mmap = vmw_mmap,
905 .poll = drm_poll,
906 .fasync = drm_fasync,
907 #if defined(CONFIG_COMPAT)
908 .compat_ioctl = drm_compat_ioctl,
909 #endif
910 .llseek = noop_llseek,
911 },
912 .name = VMWGFX_DRIVER_NAME,
913 .desc = VMWGFX_DRIVER_DESC,
914 .date = VMWGFX_DRIVER_DATE,
915 .major = VMWGFX_DRIVER_MAJOR,
916 .minor = VMWGFX_DRIVER_MINOR,
917 .patchlevel = VMWGFX_DRIVER_PATCHLEVEL
918 };
919
920 static struct pci_driver vmw_pci_driver = {
921 .name = VMWGFX_DRIVER_NAME,
922 .id_table = vmw_pci_id_list,
923 .probe = vmw_probe,
924 .remove = vmw_remove,
925 .driver = {
926 .pm = &vmw_pm_ops
927 }
928 };
929
vmw_probe(struct pci_dev * pdev,const struct pci_device_id * ent)930 static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
931 {
932 return drm_get_pci_dev(pdev, ent, &driver);
933 }
934
vmwgfx_init(void)935 static int __init vmwgfx_init(void)
936 {
937 int ret;
938 ret = drm_pci_init(&driver, &vmw_pci_driver);
939 if (ret)
940 DRM_ERROR("Failed initializing DRM.\n");
941 return ret;
942 }
943
vmwgfx_exit(void)944 static void __exit vmwgfx_exit(void)
945 {
946 drm_pci_exit(&driver, &vmw_pci_driver);
947 }
948
949 module_init(vmwgfx_init);
950 module_exit(vmwgfx_exit);
951
952 MODULE_AUTHOR("VMware Inc. and others");
953 MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
954 MODULE_LICENSE("GPL and additional rights");
955 MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "."
956 __stringify(VMWGFX_DRIVER_MINOR) "."
957 __stringify(VMWGFX_DRIVER_PATCHLEVEL) "."
958 "0");
959