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fb1d9738 JB |
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 | ||
92 | ||
93 | /** | |
94 | * The core DRM version of this macro doesn't account for | |
95 | * DRM_COMMAND_BASE. | |
96 | */ | |
97 | ||
98 | #define VMW_IOCTL_DEF(ioctl, func, flags) \ | |
99 | [DRM_IOCTL_NR(ioctl) - DRM_COMMAND_BASE] = {ioctl, flags, func} | |
100 | ||
101 | /** | |
102 | * Ioctl definitions. | |
103 | */ | |
104 | ||
105 | static struct drm_ioctl_desc vmw_ioctls[] = { | |
106 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_GET_PARAM, vmw_getparam_ioctl, 0), | |
107 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_ALLOC_DMABUF, vmw_dmabuf_alloc_ioctl, | |
108 | 0), | |
109 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_DMABUF, vmw_dmabuf_unref_ioctl, | |
110 | 0), | |
111 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_CURSOR_BYPASS, | |
112 | vmw_kms_cursor_bypass_ioctl, 0), | |
113 | ||
114 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_CONTROL_STREAM, vmw_overlay_ioctl, | |
115 | 0), | |
116 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_CLAIM_STREAM, vmw_stream_claim_ioctl, | |
117 | 0), | |
118 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_STREAM, vmw_stream_unref_ioctl, | |
119 | 0), | |
120 | ||
121 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_CREATE_CONTEXT, vmw_context_define_ioctl, | |
122 | 0), | |
123 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl, | |
124 | 0), | |
125 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_CREATE_SURFACE, vmw_surface_define_ioctl, | |
126 | 0), | |
127 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl, | |
128 | 0), | |
129 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_REF_SURFACE, vmw_surface_reference_ioctl, | |
130 | 0), | |
131 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_EXECBUF, vmw_execbuf_ioctl, | |
132 | 0), | |
133 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_FIFO_DEBUG, vmw_fifo_debug_ioctl, | |
134 | 0), | |
135 | VMW_IOCTL_DEF(DRM_IOCTL_VMW_FENCE_WAIT, vmw_fence_wait_ioctl, | |
136 | 0) | |
137 | }; | |
138 | ||
139 | static struct pci_device_id vmw_pci_id_list[] = { | |
140 | {0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII}, | |
141 | {0, 0, 0} | |
142 | }; | |
143 | ||
144 | static char *vmw_devname = "vmwgfx"; | |
145 | ||
146 | static int vmw_probe(struct pci_dev *, const struct pci_device_id *); | |
147 | static void vmw_master_init(struct vmw_master *); | |
148 | ||
149 | static void vmw_print_capabilities(uint32_t capabilities) | |
150 | { | |
151 | DRM_INFO("Capabilities:\n"); | |
152 | if (capabilities & SVGA_CAP_RECT_COPY) | |
153 | DRM_INFO(" Rect copy.\n"); | |
154 | if (capabilities & SVGA_CAP_CURSOR) | |
155 | DRM_INFO(" Cursor.\n"); | |
156 | if (capabilities & SVGA_CAP_CURSOR_BYPASS) | |
157 | DRM_INFO(" Cursor bypass.\n"); | |
158 | if (capabilities & SVGA_CAP_CURSOR_BYPASS_2) | |
159 | DRM_INFO(" Cursor bypass 2.\n"); | |
160 | if (capabilities & SVGA_CAP_8BIT_EMULATION) | |
161 | DRM_INFO(" 8bit emulation.\n"); | |
162 | if (capabilities & SVGA_CAP_ALPHA_CURSOR) | |
163 | DRM_INFO(" Alpha cursor.\n"); | |
164 | if (capabilities & SVGA_CAP_3D) | |
165 | DRM_INFO(" 3D.\n"); | |
166 | if (capabilities & SVGA_CAP_EXTENDED_FIFO) | |
167 | DRM_INFO(" Extended Fifo.\n"); | |
168 | if (capabilities & SVGA_CAP_MULTIMON) | |
169 | DRM_INFO(" Multimon.\n"); | |
170 | if (capabilities & SVGA_CAP_PITCHLOCK) | |
171 | DRM_INFO(" Pitchlock.\n"); | |
172 | if (capabilities & SVGA_CAP_IRQMASK) | |
173 | DRM_INFO(" Irq mask.\n"); | |
174 | if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) | |
175 | DRM_INFO(" Display Topology.\n"); | |
176 | if (capabilities & SVGA_CAP_GMR) | |
177 | DRM_INFO(" GMR.\n"); | |
178 | if (capabilities & SVGA_CAP_TRACES) | |
179 | DRM_INFO(" Traces.\n"); | |
180 | } | |
181 | ||
182 | static int vmw_request_device(struct vmw_private *dev_priv) | |
183 | { | |
184 | int ret; | |
185 | ||
186 | vmw_kms_save_vga(dev_priv); | |
187 | ||
188 | ret = vmw_fifo_init(dev_priv, &dev_priv->fifo); | |
189 | if (unlikely(ret != 0)) { | |
190 | DRM_ERROR("Unable to initialize FIFO.\n"); | |
191 | return ret; | |
192 | } | |
193 | ||
194 | return 0; | |
195 | } | |
196 | ||
197 | static void vmw_release_device(struct vmw_private *dev_priv) | |
198 | { | |
199 | vmw_fifo_release(dev_priv, &dev_priv->fifo); | |
200 | vmw_kms_restore_vga(dev_priv); | |
201 | } | |
202 | ||
203 | ||
204 | static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) | |
205 | { | |
206 | struct vmw_private *dev_priv; | |
207 | int ret; | |
208 | ||
209 | dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL); | |
210 | if (unlikely(dev_priv == NULL)) { | |
211 | DRM_ERROR("Failed allocating a device private struct.\n"); | |
212 | return -ENOMEM; | |
213 | } | |
214 | memset(dev_priv, 0, sizeof(*dev_priv)); | |
215 | ||
216 | dev_priv->dev = dev; | |
217 | dev_priv->vmw_chipset = chipset; | |
218 | mutex_init(&dev_priv->hw_mutex); | |
219 | mutex_init(&dev_priv->cmdbuf_mutex); | |
220 | rwlock_init(&dev_priv->resource_lock); | |
221 | idr_init(&dev_priv->context_idr); | |
222 | idr_init(&dev_priv->surface_idr); | |
223 | idr_init(&dev_priv->stream_idr); | |
224 | ida_init(&dev_priv->gmr_ida); | |
225 | mutex_init(&dev_priv->init_mutex); | |
226 | init_waitqueue_head(&dev_priv->fence_queue); | |
227 | init_waitqueue_head(&dev_priv->fifo_queue); | |
228 | atomic_set(&dev_priv->fence_queue_waiters, 0); | |
229 | atomic_set(&dev_priv->fifo_queue_waiters, 0); | |
230 | INIT_LIST_HEAD(&dev_priv->gmr_lru); | |
231 | ||
232 | dev_priv->io_start = pci_resource_start(dev->pdev, 0); | |
233 | dev_priv->vram_start = pci_resource_start(dev->pdev, 1); | |
234 | dev_priv->mmio_start = pci_resource_start(dev->pdev, 2); | |
235 | ||
236 | mutex_lock(&dev_priv->hw_mutex); | |
237 | dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES); | |
238 | ||
239 | if (dev_priv->capabilities & SVGA_CAP_GMR) { | |
240 | dev_priv->max_gmr_descriptors = | |
241 | vmw_read(dev_priv, | |
242 | SVGA_REG_GMR_MAX_DESCRIPTOR_LENGTH); | |
243 | dev_priv->max_gmr_ids = | |
244 | vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS); | |
245 | } | |
246 | ||
247 | dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE); | |
248 | dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE); | |
249 | dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH); | |
250 | dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT); | |
251 | ||
252 | mutex_unlock(&dev_priv->hw_mutex); | |
253 | ||
254 | vmw_print_capabilities(dev_priv->capabilities); | |
255 | ||
256 | if (dev_priv->capabilities & SVGA_CAP_GMR) { | |
257 | DRM_INFO("Max GMR ids is %u\n", | |
258 | (unsigned)dev_priv->max_gmr_ids); | |
259 | DRM_INFO("Max GMR descriptors is %u\n", | |
260 | (unsigned)dev_priv->max_gmr_descriptors); | |
261 | } | |
262 | DRM_INFO("VRAM at 0x%08x size is %u kiB\n", | |
263 | dev_priv->vram_start, dev_priv->vram_size / 1024); | |
264 | DRM_INFO("MMIO at 0x%08x size is %u kiB\n", | |
265 | dev_priv->mmio_start, dev_priv->mmio_size / 1024); | |
266 | ||
267 | ret = vmw_ttm_global_init(dev_priv); | |
268 | if (unlikely(ret != 0)) | |
269 | goto out_err0; | |
270 | ||
271 | ||
272 | vmw_master_init(&dev_priv->fbdev_master); | |
273 | ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM); | |
274 | dev_priv->active_master = &dev_priv->fbdev_master; | |
275 | ||
276 | ||
277 | ret = ttm_bo_device_init(&dev_priv->bdev, | |
278 | dev_priv->bo_global_ref.ref.object, | |
279 | &vmw_bo_driver, VMWGFX_FILE_PAGE_OFFSET, | |
280 | false); | |
281 | if (unlikely(ret != 0)) { | |
282 | DRM_ERROR("Failed initializing TTM buffer object driver.\n"); | |
283 | goto out_err1; | |
284 | } | |
285 | ||
286 | ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM, | |
287 | (dev_priv->vram_size >> PAGE_SHIFT)); | |
288 | if (unlikely(ret != 0)) { | |
289 | DRM_ERROR("Failed initializing memory manager for VRAM.\n"); | |
290 | goto out_err2; | |
291 | } | |
292 | ||
293 | dev_priv->mmio_mtrr = drm_mtrr_add(dev_priv->mmio_start, | |
294 | dev_priv->mmio_size, DRM_MTRR_WC); | |
295 | ||
296 | dev_priv->mmio_virt = ioremap_wc(dev_priv->mmio_start, | |
297 | dev_priv->mmio_size); | |
298 | ||
299 | if (unlikely(dev_priv->mmio_virt == NULL)) { | |
300 | ret = -ENOMEM; | |
301 | DRM_ERROR("Failed mapping MMIO.\n"); | |
302 | goto out_err3; | |
303 | } | |
304 | ||
305 | dev_priv->tdev = ttm_object_device_init | |
306 | (dev_priv->mem_global_ref.object, 12); | |
307 | ||
308 | if (unlikely(dev_priv->tdev == NULL)) { | |
309 | DRM_ERROR("Unable to initialize TTM object management.\n"); | |
310 | ret = -ENOMEM; | |
311 | goto out_err4; | |
312 | } | |
313 | ||
314 | dev->dev_private = dev_priv; | |
315 | ||
316 | if (!dev->devname) | |
317 | dev->devname = vmw_devname; | |
318 | ||
319 | if (dev_priv->capabilities & SVGA_CAP_IRQMASK) { | |
320 | ret = drm_irq_install(dev); | |
321 | if (unlikely(ret != 0)) { | |
322 | DRM_ERROR("Failed installing irq: %d\n", ret); | |
323 | goto out_no_irq; | |
324 | } | |
325 | } | |
326 | ||
327 | ret = pci_request_regions(dev->pdev, "vmwgfx probe"); | |
328 | dev_priv->stealth = (ret != 0); | |
329 | if (dev_priv->stealth) { | |
330 | /** | |
331 | * Request at least the mmio PCI resource. | |
332 | */ | |
333 | ||
334 | DRM_INFO("It appears like vesafb is loaded. " | |
335 | "Ignore above error if any. Entering stealth mode.\n"); | |
336 | ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe"); | |
337 | if (unlikely(ret != 0)) { | |
338 | DRM_ERROR("Failed reserving the SVGA MMIO resource.\n"); | |
339 | goto out_no_device; | |
340 | } | |
341 | vmw_kms_init(dev_priv); | |
342 | vmw_overlay_init(dev_priv); | |
343 | } else { | |
344 | ret = vmw_request_device(dev_priv); | |
345 | if (unlikely(ret != 0)) | |
346 | goto out_no_device; | |
347 | vmw_kms_init(dev_priv); | |
348 | vmw_overlay_init(dev_priv); | |
349 | vmw_fb_init(dev_priv); | |
350 | } | |
351 | ||
352 | return 0; | |
353 | ||
354 | out_no_device: | |
355 | if (dev_priv->capabilities & SVGA_CAP_IRQMASK) | |
356 | drm_irq_uninstall(dev_priv->dev); | |
357 | if (dev->devname == vmw_devname) | |
358 | dev->devname = NULL; | |
359 | out_no_irq: | |
360 | ttm_object_device_release(&dev_priv->tdev); | |
361 | out_err4: | |
362 | iounmap(dev_priv->mmio_virt); | |
363 | out_err3: | |
364 | drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start, | |
365 | dev_priv->mmio_size, DRM_MTRR_WC); | |
366 | (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM); | |
367 | out_err2: | |
368 | (void)ttm_bo_device_release(&dev_priv->bdev); | |
369 | out_err1: | |
370 | vmw_ttm_global_release(dev_priv); | |
371 | out_err0: | |
372 | ida_destroy(&dev_priv->gmr_ida); | |
373 | idr_destroy(&dev_priv->surface_idr); | |
374 | idr_destroy(&dev_priv->context_idr); | |
375 | idr_destroy(&dev_priv->stream_idr); | |
376 | kfree(dev_priv); | |
377 | return ret; | |
378 | } | |
379 | ||
380 | static int vmw_driver_unload(struct drm_device *dev) | |
381 | { | |
382 | struct vmw_private *dev_priv = vmw_priv(dev); | |
383 | ||
384 | DRM_INFO(VMWGFX_DRIVER_NAME " unload.\n"); | |
385 | ||
386 | if (!dev_priv->stealth) { | |
387 | vmw_fb_close(dev_priv); | |
388 | vmw_kms_close(dev_priv); | |
389 | vmw_overlay_close(dev_priv); | |
390 | vmw_release_device(dev_priv); | |
391 | pci_release_regions(dev->pdev); | |
392 | } else { | |
393 | vmw_kms_close(dev_priv); | |
394 | vmw_overlay_close(dev_priv); | |
395 | pci_release_region(dev->pdev, 2); | |
396 | } | |
397 | if (dev_priv->capabilities & SVGA_CAP_IRQMASK) | |
398 | drm_irq_uninstall(dev_priv->dev); | |
399 | if (dev->devname == vmw_devname) | |
400 | dev->devname = NULL; | |
401 | ttm_object_device_release(&dev_priv->tdev); | |
402 | iounmap(dev_priv->mmio_virt); | |
403 | drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start, | |
404 | dev_priv->mmio_size, DRM_MTRR_WC); | |
405 | (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM); | |
406 | (void)ttm_bo_device_release(&dev_priv->bdev); | |
407 | vmw_ttm_global_release(dev_priv); | |
408 | ida_destroy(&dev_priv->gmr_ida); | |
409 | idr_destroy(&dev_priv->surface_idr); | |
410 | idr_destroy(&dev_priv->context_idr); | |
411 | idr_destroy(&dev_priv->stream_idr); | |
412 | ||
413 | kfree(dev_priv); | |
414 | ||
415 | return 0; | |
416 | } | |
417 | ||
418 | static void vmw_postclose(struct drm_device *dev, | |
419 | struct drm_file *file_priv) | |
420 | { | |
421 | struct vmw_fpriv *vmw_fp; | |
422 | ||
423 | vmw_fp = vmw_fpriv(file_priv); | |
424 | ttm_object_file_release(&vmw_fp->tfile); | |
425 | if (vmw_fp->locked_master) | |
426 | drm_master_put(&vmw_fp->locked_master); | |
427 | kfree(vmw_fp); | |
428 | } | |
429 | ||
430 | static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv) | |
431 | { | |
432 | struct vmw_private *dev_priv = vmw_priv(dev); | |
433 | struct vmw_fpriv *vmw_fp; | |
434 | int ret = -ENOMEM; | |
435 | ||
436 | vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL); | |
437 | if (unlikely(vmw_fp == NULL)) | |
438 | return ret; | |
439 | ||
440 | vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10); | |
441 | if (unlikely(vmw_fp->tfile == NULL)) | |
442 | goto out_no_tfile; | |
443 | ||
444 | file_priv->driver_priv = vmw_fp; | |
445 | ||
446 | if (unlikely(dev_priv->bdev.dev_mapping == NULL)) | |
447 | dev_priv->bdev.dev_mapping = | |
448 | file_priv->filp->f_path.dentry->d_inode->i_mapping; | |
449 | ||
450 | return 0; | |
451 | ||
452 | out_no_tfile: | |
453 | kfree(vmw_fp); | |
454 | return ret; | |
455 | } | |
456 | ||
457 | static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd, | |
458 | unsigned long arg) | |
459 | { | |
460 | struct drm_file *file_priv = filp->private_data; | |
461 | struct drm_device *dev = file_priv->minor->dev; | |
462 | unsigned int nr = DRM_IOCTL_NR(cmd); | |
463 | long ret; | |
464 | ||
465 | /* | |
466 | * The driver private ioctls and TTM ioctls should be | |
467 | * thread-safe. | |
468 | */ | |
469 | ||
470 | if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) | |
471 | && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) { | |
472 | struct drm_ioctl_desc *ioctl = | |
473 | &vmw_ioctls[nr - DRM_COMMAND_BASE]; | |
474 | ||
475 | if (unlikely(ioctl->cmd != cmd)) { | |
476 | DRM_ERROR("Invalid command format, ioctl %d\n", | |
477 | nr - DRM_COMMAND_BASE); | |
478 | return -EINVAL; | |
479 | } | |
480 | return drm_ioctl(filp->f_path.dentry->d_inode, | |
481 | filp, cmd, arg); | |
482 | } | |
483 | ||
484 | /* | |
485 | * Not all old drm ioctls are thread-safe. | |
486 | */ | |
487 | ||
488 | lock_kernel(); | |
489 | ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg); | |
490 | unlock_kernel(); | |
491 | return ret; | |
492 | } | |
493 | ||
494 | static int vmw_firstopen(struct drm_device *dev) | |
495 | { | |
496 | struct vmw_private *dev_priv = vmw_priv(dev); | |
497 | dev_priv->is_opened = true; | |
498 | ||
499 | return 0; | |
500 | } | |
501 | ||
502 | static void vmw_lastclose(struct drm_device *dev) | |
503 | { | |
504 | struct vmw_private *dev_priv = vmw_priv(dev); | |
505 | struct drm_crtc *crtc; | |
506 | struct drm_mode_set set; | |
507 | int ret; | |
508 | ||
509 | /** | |
510 | * Do nothing on the lastclose call from drm_unload. | |
511 | */ | |
512 | ||
513 | if (!dev_priv->is_opened) | |
514 | return; | |
515 | ||
516 | dev_priv->is_opened = false; | |
517 | set.x = 0; | |
518 | set.y = 0; | |
519 | set.fb = NULL; | |
520 | set.mode = NULL; | |
521 | set.connectors = NULL; | |
522 | set.num_connectors = 0; | |
523 | ||
524 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
525 | set.crtc = crtc; | |
526 | ret = crtc->funcs->set_config(&set); | |
527 | WARN_ON(ret != 0); | |
528 | } | |
529 | ||
530 | } | |
531 | ||
532 | static void vmw_master_init(struct vmw_master *vmaster) | |
533 | { | |
534 | ttm_lock_init(&vmaster->lock); | |
535 | } | |
536 | ||
537 | static int vmw_master_create(struct drm_device *dev, | |
538 | struct drm_master *master) | |
539 | { | |
540 | struct vmw_master *vmaster; | |
541 | ||
542 | DRM_INFO("Master create.\n"); | |
543 | vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL); | |
544 | if (unlikely(vmaster == NULL)) | |
545 | return -ENOMEM; | |
546 | ||
547 | ttm_lock_init(&vmaster->lock); | |
548 | ttm_lock_set_kill(&vmaster->lock, true, SIGTERM); | |
549 | master->driver_priv = vmaster; | |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
554 | static void vmw_master_destroy(struct drm_device *dev, | |
555 | struct drm_master *master) | |
556 | { | |
557 | struct vmw_master *vmaster = vmw_master(master); | |
558 | ||
559 | DRM_INFO("Master destroy.\n"); | |
560 | master->driver_priv = NULL; | |
561 | kfree(vmaster); | |
562 | } | |
563 | ||
564 | ||
565 | static int vmw_master_set(struct drm_device *dev, | |
566 | struct drm_file *file_priv, | |
567 | bool from_open) | |
568 | { | |
569 | struct vmw_private *dev_priv = vmw_priv(dev); | |
570 | struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); | |
571 | struct vmw_master *active = dev_priv->active_master; | |
572 | struct vmw_master *vmaster = vmw_master(file_priv->master); | |
573 | int ret = 0; | |
574 | ||
575 | DRM_INFO("Master set.\n"); | |
576 | if (dev_priv->stealth) { | |
577 | ret = vmw_request_device(dev_priv); | |
578 | if (unlikely(ret != 0)) | |
579 | return ret; | |
580 | } | |
581 | ||
582 | if (active) { | |
583 | BUG_ON(active != &dev_priv->fbdev_master); | |
584 | ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile); | |
585 | if (unlikely(ret != 0)) | |
586 | goto out_no_active_lock; | |
587 | ||
588 | ttm_lock_set_kill(&active->lock, true, SIGTERM); | |
589 | ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM); | |
590 | if (unlikely(ret != 0)) { | |
591 | DRM_ERROR("Unable to clean VRAM on " | |
592 | "master drop.\n"); | |
593 | } | |
594 | ||
595 | dev_priv->active_master = NULL; | |
596 | } | |
597 | ||
598 | ttm_lock_set_kill(&vmaster->lock, false, SIGTERM); | |
599 | if (!from_open) { | |
600 | ttm_vt_unlock(&vmaster->lock); | |
601 | BUG_ON(vmw_fp->locked_master != file_priv->master); | |
602 | drm_master_put(&vmw_fp->locked_master); | |
603 | } | |
604 | ||
605 | dev_priv->active_master = vmaster; | |
606 | ||
607 | return 0; | |
608 | ||
609 | out_no_active_lock: | |
610 | vmw_release_device(dev_priv); | |
611 | return ret; | |
612 | } | |
613 | ||
614 | static void vmw_master_drop(struct drm_device *dev, | |
615 | struct drm_file *file_priv, | |
616 | bool from_release) | |
617 | { | |
618 | struct vmw_private *dev_priv = vmw_priv(dev); | |
619 | struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); | |
620 | struct vmw_master *vmaster = vmw_master(file_priv->master); | |
621 | int ret; | |
622 | ||
623 | DRM_INFO("Master drop.\n"); | |
624 | ||
625 | /** | |
626 | * Make sure the master doesn't disappear while we have | |
627 | * it locked. | |
628 | */ | |
629 | ||
630 | vmw_fp->locked_master = drm_master_get(file_priv->master); | |
631 | ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile); | |
632 | ||
633 | if (unlikely((ret != 0))) { | |
634 | DRM_ERROR("Unable to lock TTM at VT switch.\n"); | |
635 | drm_master_put(&vmw_fp->locked_master); | |
636 | } | |
637 | ||
638 | ttm_lock_set_kill(&vmaster->lock, true, SIGTERM); | |
639 | ||
640 | if (dev_priv->stealth) { | |
641 | ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM); | |
642 | if (unlikely(ret != 0)) | |
643 | DRM_ERROR("Unable to clean VRAM on master drop.\n"); | |
644 | vmw_release_device(dev_priv); | |
645 | } | |
646 | dev_priv->active_master = &dev_priv->fbdev_master; | |
647 | ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM); | |
648 | ttm_vt_unlock(&dev_priv->fbdev_master.lock); | |
649 | ||
650 | if (!dev_priv->stealth) | |
651 | vmw_fb_on(dev_priv); | |
652 | } | |
653 | ||
654 | ||
655 | static void vmw_remove(struct pci_dev *pdev) | |
656 | { | |
657 | struct drm_device *dev = pci_get_drvdata(pdev); | |
658 | ||
659 | drm_put_dev(dev); | |
660 | } | |
661 | ||
662 | static struct drm_driver driver = { | |
663 | .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | | |
664 | DRIVER_MODESET, | |
665 | .load = vmw_driver_load, | |
666 | .unload = vmw_driver_unload, | |
667 | .firstopen = vmw_firstopen, | |
668 | .lastclose = vmw_lastclose, | |
669 | .irq_preinstall = vmw_irq_preinstall, | |
670 | .irq_postinstall = vmw_irq_postinstall, | |
671 | .irq_uninstall = vmw_irq_uninstall, | |
672 | .irq_handler = vmw_irq_handler, | |
673 | .reclaim_buffers_locked = NULL, | |
674 | .get_map_ofs = drm_core_get_map_ofs, | |
675 | .get_reg_ofs = drm_core_get_reg_ofs, | |
676 | .ioctls = vmw_ioctls, | |
677 | .num_ioctls = DRM_ARRAY_SIZE(vmw_ioctls), | |
678 | .dma_quiescent = NULL, /*vmw_dma_quiescent, */ | |
679 | .master_create = vmw_master_create, | |
680 | .master_destroy = vmw_master_destroy, | |
681 | .master_set = vmw_master_set, | |
682 | .master_drop = vmw_master_drop, | |
683 | .open = vmw_driver_open, | |
684 | .postclose = vmw_postclose, | |
685 | .fops = { | |
686 | .owner = THIS_MODULE, | |
687 | .open = drm_open, | |
688 | .release = drm_release, | |
689 | .unlocked_ioctl = vmw_unlocked_ioctl, | |
690 | .mmap = vmw_mmap, | |
691 | .poll = drm_poll, | |
692 | .fasync = drm_fasync, | |
693 | #if defined(CONFIG_COMPAT) | |
694 | .compat_ioctl = drm_compat_ioctl, | |
695 | #endif | |
696 | }, | |
697 | .pci_driver = { | |
698 | .name = VMWGFX_DRIVER_NAME, | |
699 | .id_table = vmw_pci_id_list, | |
700 | .probe = vmw_probe, | |
701 | .remove = vmw_remove | |
702 | }, | |
703 | .name = VMWGFX_DRIVER_NAME, | |
704 | .desc = VMWGFX_DRIVER_DESC, | |
705 | .date = VMWGFX_DRIVER_DATE, | |
706 | .major = VMWGFX_DRIVER_MAJOR, | |
707 | .minor = VMWGFX_DRIVER_MINOR, | |
708 | .patchlevel = VMWGFX_DRIVER_PATCHLEVEL | |
709 | }; | |
710 | ||
711 | static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
712 | { | |
713 | return drm_get_dev(pdev, ent, &driver); | |
714 | } | |
715 | ||
716 | static int __init vmwgfx_init(void) | |
717 | { | |
718 | int ret; | |
719 | ret = drm_init(&driver); | |
720 | if (ret) | |
721 | DRM_ERROR("Failed initializing DRM.\n"); | |
722 | return ret; | |
723 | } | |
724 | ||
725 | static void __exit vmwgfx_exit(void) | |
726 | { | |
727 | drm_exit(&driver); | |
728 | } | |
729 | ||
730 | module_init(vmwgfx_init); | |
731 | module_exit(vmwgfx_exit); | |
732 | ||
733 | MODULE_AUTHOR("VMware Inc. and others"); | |
734 | MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device"); | |
735 | MODULE_LICENSE("GPL and additional rights"); |