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1/**************************************************************************
2 *
3 * Copyright © 2009-2015 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#include <linux/module.h>
28#include <linux/console.h>
29
30#include <drm/drmP.h>
31#include "vmwgfx_drv.h"
32#include "vmwgfx_binding.h"
33#include <drm/ttm/ttm_placement.h>
34#include <drm/ttm/ttm_bo_driver.h>
35#include <drm/ttm/ttm_object.h>
36#include <drm/ttm/ttm_module.h>
37#include <linux/dma_remapping.h>
38
39#define VMWGFX_DRIVER_NAME "vmwgfx"
40#define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
41#define VMWGFX_CHIP_SVGAII 0
42#define VMW_FB_RESERVATION 0
43
44#define VMW_MIN_INITIAL_WIDTH 800
45#define VMW_MIN_INITIAL_HEIGHT 600
46
47
48/**
49 * Fully encoded drm commands. Might move to vmw_drm.h
50 */
51
52#define DRM_IOCTL_VMW_GET_PARAM \
53 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM, \
54 struct drm_vmw_getparam_arg)
55#define DRM_IOCTL_VMW_ALLOC_DMABUF \
56 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF, \
57 union drm_vmw_alloc_dmabuf_arg)
58#define DRM_IOCTL_VMW_UNREF_DMABUF \
59 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF, \
60 struct drm_vmw_unref_dmabuf_arg)
61#define DRM_IOCTL_VMW_CURSOR_BYPASS \
62 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS, \
63 struct drm_vmw_cursor_bypass_arg)
64
65#define DRM_IOCTL_VMW_CONTROL_STREAM \
66 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM, \
67 struct drm_vmw_control_stream_arg)
68#define DRM_IOCTL_VMW_CLAIM_STREAM \
69 DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM, \
70 struct drm_vmw_stream_arg)
71#define DRM_IOCTL_VMW_UNREF_STREAM \
72 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM, \
73 struct drm_vmw_stream_arg)
74
75#define DRM_IOCTL_VMW_CREATE_CONTEXT \
76 DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT, \
77 struct drm_vmw_context_arg)
78#define DRM_IOCTL_VMW_UNREF_CONTEXT \
79 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT, \
80 struct drm_vmw_context_arg)
81#define DRM_IOCTL_VMW_CREATE_SURFACE \
82 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE, \
83 union drm_vmw_surface_create_arg)
84#define DRM_IOCTL_VMW_UNREF_SURFACE \
85 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE, \
86 struct drm_vmw_surface_arg)
87#define DRM_IOCTL_VMW_REF_SURFACE \
88 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE, \
89 union drm_vmw_surface_reference_arg)
90#define DRM_IOCTL_VMW_EXECBUF \
91 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF, \
92 struct drm_vmw_execbuf_arg)
93#define DRM_IOCTL_VMW_GET_3D_CAP \
94 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_GET_3D_CAP, \
95 struct drm_vmw_get_3d_cap_arg)
96#define DRM_IOCTL_VMW_FENCE_WAIT \
97 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT, \
98 struct drm_vmw_fence_wait_arg)
99#define DRM_IOCTL_VMW_FENCE_SIGNALED \
100 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_SIGNALED, \
101 struct drm_vmw_fence_signaled_arg)
102#define DRM_IOCTL_VMW_FENCE_UNREF \
103 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_UNREF, \
104 struct drm_vmw_fence_arg)
105#define DRM_IOCTL_VMW_FENCE_EVENT \
106 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_EVENT, \
107 struct drm_vmw_fence_event_arg)
108#define DRM_IOCTL_VMW_PRESENT \
109 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT, \
110 struct drm_vmw_present_arg)
111#define DRM_IOCTL_VMW_PRESENT_READBACK \
112 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT_READBACK, \
113 struct drm_vmw_present_readback_arg)
114#define DRM_IOCTL_VMW_UPDATE_LAYOUT \
115 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT, \
116 struct drm_vmw_update_layout_arg)
117#define DRM_IOCTL_VMW_CREATE_SHADER \
118 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SHADER, \
119 struct drm_vmw_shader_create_arg)
120#define DRM_IOCTL_VMW_UNREF_SHADER \
121 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SHADER, \
122 struct drm_vmw_shader_arg)
123#define DRM_IOCTL_VMW_GB_SURFACE_CREATE \
124 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE, \
125 union drm_vmw_gb_surface_create_arg)
126#define DRM_IOCTL_VMW_GB_SURFACE_REF \
127 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF, \
128 union drm_vmw_gb_surface_reference_arg)
129#define DRM_IOCTL_VMW_SYNCCPU \
130 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_SYNCCPU, \
131 struct drm_vmw_synccpu_arg)
132#define DRM_IOCTL_VMW_CREATE_EXTENDED_CONTEXT \
133 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_EXTENDED_CONTEXT, \
134 struct drm_vmw_context_arg)
135
136/**
137 * The core DRM version of this macro doesn't account for
138 * DRM_COMMAND_BASE.
139 */
140
141#define VMW_IOCTL_DEF(ioctl, func, flags) \
142 [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = {DRM_IOCTL_##ioctl, flags, func}
143
144/**
145 * Ioctl definitions.
146 */
147
148static const struct drm_ioctl_desc vmw_ioctls[] = {
149 VMW_IOCTL_DEF(VMW_GET_PARAM, vmw_getparam_ioctl,
150 DRM_AUTH | DRM_RENDER_ALLOW),
151 VMW_IOCTL_DEF(VMW_ALLOC_DMABUF, vmw_dmabuf_alloc_ioctl,
152 DRM_AUTH | DRM_RENDER_ALLOW),
153 VMW_IOCTL_DEF(VMW_UNREF_DMABUF, vmw_dmabuf_unref_ioctl,
154 DRM_RENDER_ALLOW),
155 VMW_IOCTL_DEF(VMW_CURSOR_BYPASS,
156 vmw_kms_cursor_bypass_ioctl,
157 DRM_MASTER | DRM_CONTROL_ALLOW),
158
159 VMW_IOCTL_DEF(VMW_CONTROL_STREAM, vmw_overlay_ioctl,
160 DRM_MASTER | DRM_CONTROL_ALLOW),
161 VMW_IOCTL_DEF(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
162 DRM_MASTER | DRM_CONTROL_ALLOW),
163 VMW_IOCTL_DEF(VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
164 DRM_MASTER | DRM_CONTROL_ALLOW),
165
166 VMW_IOCTL_DEF(VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
167 DRM_AUTH | DRM_RENDER_ALLOW),
168 VMW_IOCTL_DEF(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
169 DRM_RENDER_ALLOW),
170 VMW_IOCTL_DEF(VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
171 DRM_AUTH | DRM_RENDER_ALLOW),
172 VMW_IOCTL_DEF(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
173 DRM_RENDER_ALLOW),
174 VMW_IOCTL_DEF(VMW_REF_SURFACE, vmw_surface_reference_ioctl,
175 DRM_AUTH | DRM_RENDER_ALLOW),
176 VMW_IOCTL_DEF(VMW_EXECBUF, NULL, DRM_AUTH |
177 DRM_RENDER_ALLOW),
178 VMW_IOCTL_DEF(VMW_FENCE_WAIT, vmw_fence_obj_wait_ioctl,
179 DRM_RENDER_ALLOW),
180 VMW_IOCTL_DEF(VMW_FENCE_SIGNALED,
181 vmw_fence_obj_signaled_ioctl,
182 DRM_RENDER_ALLOW),
183 VMW_IOCTL_DEF(VMW_FENCE_UNREF, vmw_fence_obj_unref_ioctl,
184 DRM_RENDER_ALLOW),
185 VMW_IOCTL_DEF(VMW_FENCE_EVENT, vmw_fence_event_ioctl,
186 DRM_AUTH | DRM_RENDER_ALLOW),
187 VMW_IOCTL_DEF(VMW_GET_3D_CAP, vmw_get_cap_3d_ioctl,
188 DRM_AUTH | DRM_RENDER_ALLOW),
189
190 /* these allow direct access to the framebuffers mark as master only */
191 VMW_IOCTL_DEF(VMW_PRESENT, vmw_present_ioctl,
192 DRM_MASTER | DRM_AUTH),
193 VMW_IOCTL_DEF(VMW_PRESENT_READBACK,
194 vmw_present_readback_ioctl,
195 DRM_MASTER | DRM_AUTH),
196 VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT,
197 vmw_kms_update_layout_ioctl,
198 DRM_MASTER | DRM_CONTROL_ALLOW),
199 VMW_IOCTL_DEF(VMW_CREATE_SHADER,
200 vmw_shader_define_ioctl,
201 DRM_AUTH | DRM_RENDER_ALLOW),
202 VMW_IOCTL_DEF(VMW_UNREF_SHADER,
203 vmw_shader_destroy_ioctl,
204 DRM_RENDER_ALLOW),
205 VMW_IOCTL_DEF(VMW_GB_SURFACE_CREATE,
206 vmw_gb_surface_define_ioctl,
207 DRM_AUTH | DRM_RENDER_ALLOW),
208 VMW_IOCTL_DEF(VMW_GB_SURFACE_REF,
209 vmw_gb_surface_reference_ioctl,
210 DRM_AUTH | DRM_RENDER_ALLOW),
211 VMW_IOCTL_DEF(VMW_SYNCCPU,
212 vmw_user_dmabuf_synccpu_ioctl,
213 DRM_RENDER_ALLOW),
214 VMW_IOCTL_DEF(VMW_CREATE_EXTENDED_CONTEXT,
215 vmw_extended_context_define_ioctl,
216 DRM_AUTH | DRM_RENDER_ALLOW),
217};
218
219static struct pci_device_id vmw_pci_id_list[] = {
220 {0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
221 {0, 0, 0}
222};
223MODULE_DEVICE_TABLE(pci, vmw_pci_id_list);
224
225static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON);
226static int vmw_force_iommu;
227static int vmw_restrict_iommu;
228static int vmw_force_coherent;
229static int vmw_restrict_dma_mask;
230
231static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
232static void vmw_master_init(struct vmw_master *);
233static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
234 void *ptr);
235
236MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev");
237module_param_named(enable_fbdev, enable_fbdev, int, 0600);
238MODULE_PARM_DESC(force_dma_api, "Force using the DMA API for TTM pages");
239module_param_named(force_dma_api, vmw_force_iommu, int, 0600);
240MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages");
241module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600);
242MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages");
243module_param_named(force_coherent, vmw_force_coherent, int, 0600);
244MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU");
245module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600);
246
247
248static void vmw_print_capabilities(uint32_t capabilities)
249{
250 DRM_INFO("Capabilities:\n");
251 if (capabilities & SVGA_CAP_RECT_COPY)
252 DRM_INFO(" Rect copy.\n");
253 if (capabilities & SVGA_CAP_CURSOR)
254 DRM_INFO(" Cursor.\n");
255 if (capabilities & SVGA_CAP_CURSOR_BYPASS)
256 DRM_INFO(" Cursor bypass.\n");
257 if (capabilities & SVGA_CAP_CURSOR_BYPASS_2)
258 DRM_INFO(" Cursor bypass 2.\n");
259 if (capabilities & SVGA_CAP_8BIT_EMULATION)
260 DRM_INFO(" 8bit emulation.\n");
261 if (capabilities & SVGA_CAP_ALPHA_CURSOR)
262 DRM_INFO(" Alpha cursor.\n");
263 if (capabilities & SVGA_CAP_3D)
264 DRM_INFO(" 3D.\n");
265 if (capabilities & SVGA_CAP_EXTENDED_FIFO)
266 DRM_INFO(" Extended Fifo.\n");
267 if (capabilities & SVGA_CAP_MULTIMON)
268 DRM_INFO(" Multimon.\n");
269 if (capabilities & SVGA_CAP_PITCHLOCK)
270 DRM_INFO(" Pitchlock.\n");
271 if (capabilities & SVGA_CAP_IRQMASK)
272 DRM_INFO(" Irq mask.\n");
273 if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)
274 DRM_INFO(" Display Topology.\n");
275 if (capabilities & SVGA_CAP_GMR)
276 DRM_INFO(" GMR.\n");
277 if (capabilities & SVGA_CAP_TRACES)
278 DRM_INFO(" Traces.\n");
279 if (capabilities & SVGA_CAP_GMR2)
280 DRM_INFO(" GMR2.\n");
281 if (capabilities & SVGA_CAP_SCREEN_OBJECT_2)
282 DRM_INFO(" Screen Object 2.\n");
283 if (capabilities & SVGA_CAP_COMMAND_BUFFERS)
284 DRM_INFO(" Command Buffers.\n");
285 if (capabilities & SVGA_CAP_CMD_BUFFERS_2)
286 DRM_INFO(" Command Buffers 2.\n");
287 if (capabilities & SVGA_CAP_GBOBJECTS)
288 DRM_INFO(" Guest Backed Resources.\n");
289 if (capabilities & SVGA_CAP_DX)
290 DRM_INFO(" DX Features.\n");
291}
292
293/**
294 * vmw_dummy_query_bo_create - create a bo to hold a dummy query result
295 *
296 * @dev_priv: A device private structure.
297 *
298 * This function creates a small buffer object that holds the query
299 * result for dummy queries emitted as query barriers.
300 * The function will then map the first page and initialize a pending
301 * occlusion query result structure, Finally it will unmap the buffer.
302 * No interruptible waits are done within this function.
303 *
304 * Returns an error if bo creation or initialization fails.
305 */
306static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv)
307{
308 int ret;
309 struct vmw_dma_buffer *vbo;
310 struct ttm_bo_kmap_obj map;
311 volatile SVGA3dQueryResult *result;
312 bool dummy;
313
314 /*
315 * Create the vbo as pinned, so that a tryreserve will
316 * immediately succeed. This is because we're the only
317 * user of the bo currently.
318 */
319 vbo = kzalloc(sizeof(*vbo), GFP_KERNEL);
320 if (!vbo)
321 return -ENOMEM;
322
323 ret = vmw_dmabuf_init(dev_priv, vbo, PAGE_SIZE,
324 &vmw_sys_ne_placement, false,
325 &vmw_dmabuf_bo_free);
326 if (unlikely(ret != 0))
327 return ret;
328
329 ret = ttm_bo_reserve(&vbo->base, false, true, false, NULL);
330 BUG_ON(ret != 0);
331 vmw_bo_pin_reserved(vbo, true);
332
333 ret = ttm_bo_kmap(&vbo->base, 0, 1, &map);
334 if (likely(ret == 0)) {
335 result = ttm_kmap_obj_virtual(&map, &dummy);
336 result->totalSize = sizeof(*result);
337 result->state = SVGA3D_QUERYSTATE_PENDING;
338 result->result32 = 0xff;
339 ttm_bo_kunmap(&map);
340 }
341 vmw_bo_pin_reserved(vbo, false);
342 ttm_bo_unreserve(&vbo->base);
343
344 if (unlikely(ret != 0)) {
345 DRM_ERROR("Dummy query buffer map failed.\n");
346 vmw_dmabuf_unreference(&vbo);
347 } else
348 dev_priv->dummy_query_bo = vbo;
349
350 return ret;
351}
352
353/**
354 * vmw_request_device_late - Perform late device setup
355 *
356 * @dev_priv: Pointer to device private.
357 *
358 * This function performs setup of otables and enables large command
359 * buffer submission. These tasks are split out to a separate function
360 * because it reverts vmw_release_device_early and is intended to be used
361 * by an error path in the hibernation code.
362 */
363static int vmw_request_device_late(struct vmw_private *dev_priv)
364{
365 int ret;
366
367 if (dev_priv->has_mob) {
368 ret = vmw_otables_setup(dev_priv);
369 if (unlikely(ret != 0)) {
370 DRM_ERROR("Unable to initialize "
371 "guest Memory OBjects.\n");
372 return ret;
373 }
374 }
375
376 if (dev_priv->cman) {
377 ret = vmw_cmdbuf_set_pool_size(dev_priv->cman,
378 256*4096, 2*4096);
379 if (ret) {
380 struct vmw_cmdbuf_man *man = dev_priv->cman;
381
382 dev_priv->cman = NULL;
383 vmw_cmdbuf_man_destroy(man);
384 }
385 }
386
387 return 0;
388}
389
390static int vmw_request_device(struct vmw_private *dev_priv)
391{
392 int ret;
393
394 ret = vmw_fifo_init(dev_priv, &dev_priv->fifo);
395 if (unlikely(ret != 0)) {
396 DRM_ERROR("Unable to initialize FIFO.\n");
397 return ret;
398 }
399 vmw_fence_fifo_up(dev_priv->fman);
400 dev_priv->cman = vmw_cmdbuf_man_create(dev_priv);
401 if (IS_ERR(dev_priv->cman)) {
402 dev_priv->cman = NULL;
403 dev_priv->has_dx = false;
404 }
405
406 ret = vmw_request_device_late(dev_priv);
407 if (ret)
408 goto out_no_mob;
409
410 ret = vmw_dummy_query_bo_create(dev_priv);
411 if (unlikely(ret != 0))
412 goto out_no_query_bo;
413
414 return 0;
415
416out_no_query_bo:
417 if (dev_priv->cman)
418 vmw_cmdbuf_remove_pool(dev_priv->cman);
419 if (dev_priv->has_mob) {
420 (void) ttm_bo_evict_mm(&dev_priv->bdev, VMW_PL_MOB);
421 vmw_otables_takedown(dev_priv);
422 }
423 if (dev_priv->cman)
424 vmw_cmdbuf_man_destroy(dev_priv->cman);
425out_no_mob:
426 vmw_fence_fifo_down(dev_priv->fman);
427 vmw_fifo_release(dev_priv, &dev_priv->fifo);
428 return ret;
429}
430
431/**
432 * vmw_release_device_early - Early part of fifo takedown.
433 *
434 * @dev_priv: Pointer to device private struct.
435 *
436 * This is the first part of command submission takedown, to be called before
437 * buffer management is taken down.
438 */
439static void vmw_release_device_early(struct vmw_private *dev_priv)
440{
441 /*
442 * Previous destructions should've released
443 * the pinned bo.
444 */
445
446 BUG_ON(dev_priv->pinned_bo != NULL);
447
448 vmw_dmabuf_unreference(&dev_priv->dummy_query_bo);
449 if (dev_priv->cman)
450 vmw_cmdbuf_remove_pool(dev_priv->cman);
451
452 if (dev_priv->has_mob) {
453 ttm_bo_evict_mm(&dev_priv->bdev, VMW_PL_MOB);
454 vmw_otables_takedown(dev_priv);
455 }
456}
457
458/**
459 * vmw_release_device_late - Late part of fifo takedown.
460 *
461 * @dev_priv: Pointer to device private struct.
462 *
463 * This is the last part of the command submission takedown, to be called when
464 * command submission is no longer needed. It may wait on pending fences.
465 */
466static void vmw_release_device_late(struct vmw_private *dev_priv)
467{
468 vmw_fence_fifo_down(dev_priv->fman);
469 if (dev_priv->cman)
470 vmw_cmdbuf_man_destroy(dev_priv->cman);
471
472 vmw_fifo_release(dev_priv, &dev_priv->fifo);
473}
474
475/**
476 * Sets the initial_[width|height] fields on the given vmw_private.
477 *
478 * It does so by reading SVGA_REG_[WIDTH|HEIGHT] regs and then
479 * clamping the value to fb_max_[width|height] fields and the
480 * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
481 * If the values appear to be invalid, set them to
482 * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
483 */
484static void vmw_get_initial_size(struct vmw_private *dev_priv)
485{
486 uint32_t width;
487 uint32_t height;
488
489 width = vmw_read(dev_priv, SVGA_REG_WIDTH);
490 height = vmw_read(dev_priv, SVGA_REG_HEIGHT);
491
492 width = max_t(uint32_t, width, VMW_MIN_INITIAL_WIDTH);
493 height = max_t(uint32_t, height, VMW_MIN_INITIAL_HEIGHT);
494
495 if (width > dev_priv->fb_max_width ||
496 height > dev_priv->fb_max_height) {
497
498 /*
499 * This is a host error and shouldn't occur.
500 */
501
502 width = VMW_MIN_INITIAL_WIDTH;
503 height = VMW_MIN_INITIAL_HEIGHT;
504 }
505
506 dev_priv->initial_width = width;
507 dev_priv->initial_height = height;
508}
509
510/**
511 * vmw_dma_select_mode - Determine how DMA mappings should be set up for this
512 * system.
513 *
514 * @dev_priv: Pointer to a struct vmw_private
515 *
516 * This functions tries to determine the IOMMU setup and what actions
517 * need to be taken by the driver to make system pages visible to the
518 * device.
519 * If this function decides that DMA is not possible, it returns -EINVAL.
520 * The driver may then try to disable features of the device that require
521 * DMA.
522 */
523static int vmw_dma_select_mode(struct vmw_private *dev_priv)
524{
525 static const char *names[vmw_dma_map_max] = {
526 [vmw_dma_phys] = "Using physical TTM page addresses.",
527 [vmw_dma_alloc_coherent] = "Using coherent TTM pages.",
528 [vmw_dma_map_populate] = "Keeping DMA mappings.",
529 [vmw_dma_map_bind] = "Giving up DMA mappings early."};
530#ifdef CONFIG_X86
531 const struct dma_map_ops *dma_ops = get_dma_ops(dev_priv->dev->dev);
532
533#ifdef CONFIG_INTEL_IOMMU
534 if (intel_iommu_enabled) {
535 dev_priv->map_mode = vmw_dma_map_populate;
536 goto out_fixup;
537 }
538#endif
539
540 if (!(vmw_force_iommu || vmw_force_coherent)) {
541 dev_priv->map_mode = vmw_dma_phys;
542 DRM_INFO("DMA map mode: %s\n", names[dev_priv->map_mode]);
543 return 0;
544 }
545
546 dev_priv->map_mode = vmw_dma_map_populate;
547
548 if (dma_ops->sync_single_for_cpu)
549 dev_priv->map_mode = vmw_dma_alloc_coherent;
550#ifdef CONFIG_SWIOTLB
551 if (swiotlb_nr_tbl() == 0)
552 dev_priv->map_mode = vmw_dma_map_populate;
553#endif
554
555#ifdef CONFIG_INTEL_IOMMU
556out_fixup:
557#endif
558 if (dev_priv->map_mode == vmw_dma_map_populate &&
559 vmw_restrict_iommu)
560 dev_priv->map_mode = vmw_dma_map_bind;
561
562 if (vmw_force_coherent)
563 dev_priv->map_mode = vmw_dma_alloc_coherent;
564
565#if !defined(CONFIG_SWIOTLB) && !defined(CONFIG_INTEL_IOMMU)
566 /*
567 * No coherent page pool
568 */
569 if (dev_priv->map_mode == vmw_dma_alloc_coherent)
570 return -EINVAL;
571#endif
572
573#else /* CONFIG_X86 */
574 dev_priv->map_mode = vmw_dma_map_populate;
575#endif /* CONFIG_X86 */
576
577 DRM_INFO("DMA map mode: %s\n", names[dev_priv->map_mode]);
578
579 return 0;
580}
581
582/**
583 * vmw_dma_masks - set required page- and dma masks
584 *
585 * @dev: Pointer to struct drm-device
586 *
587 * With 32-bit we can only handle 32 bit PFNs. Optionally set that
588 * restriction also for 64-bit systems.
589 */
590#ifdef CONFIG_INTEL_IOMMU
591static int vmw_dma_masks(struct vmw_private *dev_priv)
592{
593 struct drm_device *dev = dev_priv->dev;
594
595 if (intel_iommu_enabled &&
596 (sizeof(unsigned long) == 4 || vmw_restrict_dma_mask)) {
597 DRM_INFO("Restricting DMA addresses to 44 bits.\n");
598 return dma_set_mask(dev->dev, DMA_BIT_MASK(44));
599 }
600 return 0;
601}
602#else
603static int vmw_dma_masks(struct vmw_private *dev_priv)
604{
605 return 0;
606}
607#endif
608
609static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
610{
611 struct vmw_private *dev_priv;
612 int ret;
613 uint32_t svga_id;
614 enum vmw_res_type i;
615 bool refuse_dma = false;
616
617 dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
618 if (unlikely(dev_priv == NULL)) {
619 DRM_ERROR("Failed allocating a device private struct.\n");
620 return -ENOMEM;
621 }
622
623 pci_set_master(dev->pdev);
624
625 dev_priv->dev = dev;
626 dev_priv->vmw_chipset = chipset;
627 dev_priv->last_read_seqno = (uint32_t) -100;
628 mutex_init(&dev_priv->cmdbuf_mutex);
629 mutex_init(&dev_priv->release_mutex);
630 mutex_init(&dev_priv->binding_mutex);
631 rwlock_init(&dev_priv->resource_lock);
632 ttm_lock_init(&dev_priv->reservation_sem);
633 spin_lock_init(&dev_priv->hw_lock);
634 spin_lock_init(&dev_priv->waiter_lock);
635 spin_lock_init(&dev_priv->cap_lock);
636 spin_lock_init(&dev_priv->svga_lock);
637
638 for (i = vmw_res_context; i < vmw_res_max; ++i) {
639 idr_init(&dev_priv->res_idr[i]);
640 INIT_LIST_HEAD(&dev_priv->res_lru[i]);
641 }
642
643 mutex_init(&dev_priv->init_mutex);
644 init_waitqueue_head(&dev_priv->fence_queue);
645 init_waitqueue_head(&dev_priv->fifo_queue);
646 dev_priv->fence_queue_waiters = 0;
647 dev_priv->fifo_queue_waiters = 0;
648
649 dev_priv->used_memory_size = 0;
650
651 dev_priv->io_start = pci_resource_start(dev->pdev, 0);
652 dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
653 dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
654
655 dev_priv->enable_fb = enable_fbdev;
656
657 vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
658 svga_id = vmw_read(dev_priv, SVGA_REG_ID);
659 if (svga_id != SVGA_ID_2) {
660 ret = -ENOSYS;
661 DRM_ERROR("Unsupported SVGA ID 0x%x\n", svga_id);
662 goto out_err0;
663 }
664
665 dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
666 ret = vmw_dma_select_mode(dev_priv);
667 if (unlikely(ret != 0)) {
668 DRM_INFO("Restricting capabilities due to IOMMU setup.\n");
669 refuse_dma = true;
670 }
671
672 dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
673 dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
674 dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
675 dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
676
677 vmw_get_initial_size(dev_priv);
678
679 if (dev_priv->capabilities & SVGA_CAP_GMR2) {
680 dev_priv->max_gmr_ids =
681 vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
682 dev_priv->max_gmr_pages =
683 vmw_read(dev_priv, SVGA_REG_GMRS_MAX_PAGES);
684 dev_priv->memory_size =
685 vmw_read(dev_priv, SVGA_REG_MEMORY_SIZE);
686 dev_priv->memory_size -= dev_priv->vram_size;
687 } else {
688 /*
689 * An arbitrary limit of 512MiB on surface
690 * memory. But all HWV8 hardware supports GMR2.
691 */
692 dev_priv->memory_size = 512*1024*1024;
693 }
694 dev_priv->max_mob_pages = 0;
695 dev_priv->max_mob_size = 0;
696 if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
697 uint64_t mem_size =
698 vmw_read(dev_priv,
699 SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB);
700
701 dev_priv->max_mob_pages = mem_size * 1024 / PAGE_SIZE;
702 dev_priv->prim_bb_mem =
703 vmw_read(dev_priv,
704 SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM);
705 dev_priv->max_mob_size =
706 vmw_read(dev_priv, SVGA_REG_MOB_MAX_SIZE);
707 dev_priv->stdu_max_width =
708 vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_WIDTH);
709 dev_priv->stdu_max_height =
710 vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_HEIGHT);
711
712 vmw_write(dev_priv, SVGA_REG_DEV_CAP,
713 SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH);
714 dev_priv->texture_max_width = vmw_read(dev_priv,
715 SVGA_REG_DEV_CAP);
716 vmw_write(dev_priv, SVGA_REG_DEV_CAP,
717 SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT);
718 dev_priv->texture_max_height = vmw_read(dev_priv,
719 SVGA_REG_DEV_CAP);
720 } else {
721 dev_priv->texture_max_width = 8192;
722 dev_priv->texture_max_height = 8192;
723 dev_priv->prim_bb_mem = dev_priv->vram_size;
724 }
725
726 vmw_print_capabilities(dev_priv->capabilities);
727
728 ret = vmw_dma_masks(dev_priv);
729 if (unlikely(ret != 0))
730 goto out_err0;
731
732 if (dev_priv->capabilities & SVGA_CAP_GMR2) {
733 DRM_INFO("Max GMR ids is %u\n",
734 (unsigned)dev_priv->max_gmr_ids);
735 DRM_INFO("Max number of GMR pages is %u\n",
736 (unsigned)dev_priv->max_gmr_pages);
737 DRM_INFO("Max dedicated hypervisor surface memory is %u kiB\n",
738 (unsigned)dev_priv->memory_size / 1024);
739 }
740 DRM_INFO("Maximum display memory size is %u kiB\n",
741 dev_priv->prim_bb_mem / 1024);
742 DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
743 dev_priv->vram_start, dev_priv->vram_size / 1024);
744 DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
745 dev_priv->mmio_start, dev_priv->mmio_size / 1024);
746
747 ret = vmw_ttm_global_init(dev_priv);
748 if (unlikely(ret != 0))
749 goto out_err0;
750
751
752 vmw_master_init(&dev_priv->fbdev_master);
753 ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
754 dev_priv->active_master = &dev_priv->fbdev_master;
755
756 dev_priv->mmio_virt = memremap(dev_priv->mmio_start,
757 dev_priv->mmio_size, MEMREMAP_WB);
758
759 if (unlikely(dev_priv->mmio_virt == NULL)) {
760 ret = -ENOMEM;
761 DRM_ERROR("Failed mapping MMIO.\n");
762 goto out_err3;
763 }
764
765 /* Need mmio memory to check for fifo pitchlock cap. */
766 if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
767 !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
768 !vmw_fifo_have_pitchlock(dev_priv)) {
769 ret = -ENOSYS;
770 DRM_ERROR("Hardware has no pitchlock\n");
771 goto out_err4;
772 }
773
774 dev_priv->tdev = ttm_object_device_init
775 (dev_priv->mem_global_ref.object, 12, &vmw_prime_dmabuf_ops);
776
777 if (unlikely(dev_priv->tdev == NULL)) {
778 DRM_ERROR("Unable to initialize TTM object management.\n");
779 ret = -ENOMEM;
780 goto out_err4;
781 }
782
783 dev->dev_private = dev_priv;
784
785 ret = pci_request_regions(dev->pdev, "vmwgfx probe");
786 dev_priv->stealth = (ret != 0);
787 if (dev_priv->stealth) {
788 /**
789 * Request at least the mmio PCI resource.
790 */
791
792 DRM_INFO("It appears like vesafb is loaded. "
793 "Ignore above error if any.\n");
794 ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
795 if (unlikely(ret != 0)) {
796 DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
797 goto out_no_device;
798 }
799 }
800
801 if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
802 ret = drm_irq_install(dev, dev->pdev->irq);
803 if (ret != 0) {
804 DRM_ERROR("Failed installing irq: %d\n", ret);
805 goto out_no_irq;
806 }
807 }
808
809 dev_priv->fman = vmw_fence_manager_init(dev_priv);
810 if (unlikely(dev_priv->fman == NULL)) {
811 ret = -ENOMEM;
812 goto out_no_fman;
813 }
814
815 ret = ttm_bo_device_init(&dev_priv->bdev,
816 dev_priv->bo_global_ref.ref.object,
817 &vmw_bo_driver,
818 dev->anon_inode->i_mapping,
819 VMWGFX_FILE_PAGE_OFFSET,
820 false);
821 if (unlikely(ret != 0)) {
822 DRM_ERROR("Failed initializing TTM buffer object driver.\n");
823 goto out_no_bdev;
824 }
825
826 /*
827 * Enable VRAM, but initially don't use it until SVGA is enabled and
828 * unhidden.
829 */
830 ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
831 (dev_priv->vram_size >> PAGE_SHIFT));
832 if (unlikely(ret != 0)) {
833 DRM_ERROR("Failed initializing memory manager for VRAM.\n");
834 goto out_no_vram;
835 }
836 dev_priv->bdev.man[TTM_PL_VRAM].use_type = false;
837
838 dev_priv->has_gmr = true;
839 if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) ||
840 refuse_dma || ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR,
841 VMW_PL_GMR) != 0) {
842 DRM_INFO("No GMR memory available. "
843 "Graphics memory resources are very limited.\n");
844 dev_priv->has_gmr = false;
845 }
846
847 if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
848 dev_priv->has_mob = true;
849 if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_MOB,
850 VMW_PL_MOB) != 0) {
851 DRM_INFO("No MOB memory available. "
852 "3D will be disabled.\n");
853 dev_priv->has_mob = false;
854 }
855 }
856
857 if (dev_priv->has_mob) {
858 spin_lock(&dev_priv->cap_lock);
859 vmw_write(dev_priv, SVGA_REG_DEV_CAP, SVGA3D_DEVCAP_DX);
860 dev_priv->has_dx = !!vmw_read(dev_priv, SVGA_REG_DEV_CAP);
861 spin_unlock(&dev_priv->cap_lock);
862 }
863
864
865 ret = vmw_kms_init(dev_priv);
866 if (unlikely(ret != 0))
867 goto out_no_kms;
868 vmw_overlay_init(dev_priv);
869
870 ret = vmw_request_device(dev_priv);
871 if (ret)
872 goto out_no_fifo;
873
874 DRM_INFO("DX: %s\n", dev_priv->has_dx ? "yes." : "no.");
875
876 if (dev_priv->enable_fb) {
877 vmw_fifo_resource_inc(dev_priv);
878 vmw_svga_enable(dev_priv);
879 vmw_fb_init(dev_priv);
880 }
881
882 dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
883 register_pm_notifier(&dev_priv->pm_nb);
884
885 return 0;
886
887out_no_fifo:
888 vmw_overlay_close(dev_priv);
889 vmw_kms_close(dev_priv);
890out_no_kms:
891 if (dev_priv->has_mob)
892 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
893 if (dev_priv->has_gmr)
894 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
895 (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
896out_no_vram:
897 (void)ttm_bo_device_release(&dev_priv->bdev);
898out_no_bdev:
899 vmw_fence_manager_takedown(dev_priv->fman);
900out_no_fman:
901 if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
902 drm_irq_uninstall(dev_priv->dev);
903out_no_irq:
904 if (dev_priv->stealth)
905 pci_release_region(dev->pdev, 2);
906 else
907 pci_release_regions(dev->pdev);
908out_no_device:
909 ttm_object_device_release(&dev_priv->tdev);
910out_err4:
911 memunmap(dev_priv->mmio_virt);
912out_err3:
913 vmw_ttm_global_release(dev_priv);
914out_err0:
915 for (i = vmw_res_context; i < vmw_res_max; ++i)
916 idr_destroy(&dev_priv->res_idr[i]);
917
918 if (dev_priv->ctx.staged_bindings)
919 vmw_binding_state_free(dev_priv->ctx.staged_bindings);
920 kfree(dev_priv);
921 return ret;
922}
923
924static int vmw_driver_unload(struct drm_device *dev)
925{
926 struct vmw_private *dev_priv = vmw_priv(dev);
927 enum vmw_res_type i;
928
929 unregister_pm_notifier(&dev_priv->pm_nb);
930
931 if (dev_priv->ctx.res_ht_initialized)
932 drm_ht_remove(&dev_priv->ctx.res_ht);
933 vfree(dev_priv->ctx.cmd_bounce);
934 if (dev_priv->enable_fb) {
935 vmw_fb_off(dev_priv);
936 vmw_fb_close(dev_priv);
937 vmw_fifo_resource_dec(dev_priv);
938 vmw_svga_disable(dev_priv);
939 }
940
941 vmw_kms_close(dev_priv);
942 vmw_overlay_close(dev_priv);
943
944 if (dev_priv->has_gmr)
945 (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
946 (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
947
948 vmw_release_device_early(dev_priv);
949 if (dev_priv->has_mob)
950 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
951 (void) ttm_bo_device_release(&dev_priv->bdev);
952 vmw_release_device_late(dev_priv);
953 vmw_fence_manager_takedown(dev_priv->fman);
954 if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
955 drm_irq_uninstall(dev_priv->dev);
956 if (dev_priv->stealth)
957 pci_release_region(dev->pdev, 2);
958 else
959 pci_release_regions(dev->pdev);
960
961 ttm_object_device_release(&dev_priv->tdev);
962 memunmap(dev_priv->mmio_virt);
963 if (dev_priv->ctx.staged_bindings)
964 vmw_binding_state_free(dev_priv->ctx.staged_bindings);
965 vmw_ttm_global_release(dev_priv);
966
967 for (i = vmw_res_context; i < vmw_res_max; ++i)
968 idr_destroy(&dev_priv->res_idr[i]);
969
970 kfree(dev_priv);
971
972 return 0;
973}
974
975static void vmw_postclose(struct drm_device *dev,
976 struct drm_file *file_priv)
977{
978 struct vmw_fpriv *vmw_fp;
979
980 vmw_fp = vmw_fpriv(file_priv);
981
982 if (vmw_fp->locked_master) {
983 struct vmw_master *vmaster =
984 vmw_master(vmw_fp->locked_master);
985
986 ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
987 ttm_vt_unlock(&vmaster->lock);
988 drm_master_put(&vmw_fp->locked_master);
989 }
990
991 ttm_object_file_release(&vmw_fp->tfile);
992 kfree(vmw_fp);
993}
994
995static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
996{
997 struct vmw_private *dev_priv = vmw_priv(dev);
998 struct vmw_fpriv *vmw_fp;
999 int ret = -ENOMEM;
1000
1001 vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
1002 if (unlikely(vmw_fp == NULL))
1003 return ret;
1004
1005 vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
1006 if (unlikely(vmw_fp->tfile == NULL))
1007 goto out_no_tfile;
1008
1009 file_priv->driver_priv = vmw_fp;
1010
1011 return 0;
1012
1013out_no_tfile:
1014 kfree(vmw_fp);
1015 return ret;
1016}
1017
1018static struct vmw_master *vmw_master_check(struct drm_device *dev,
1019 struct drm_file *file_priv,
1020 unsigned int flags)
1021{
1022 int ret;
1023 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
1024 struct vmw_master *vmaster;
1025
1026 if (file_priv->minor->type != DRM_MINOR_LEGACY ||
1027 !(flags & DRM_AUTH))
1028 return NULL;
1029
1030 ret = mutex_lock_interruptible(&dev->master_mutex);
1031 if (unlikely(ret != 0))
1032 return ERR_PTR(-ERESTARTSYS);
1033
1034 if (file_priv->is_master) {
1035 mutex_unlock(&dev->master_mutex);
1036 return NULL;
1037 }
1038
1039 /*
1040 * Check if we were previously master, but now dropped. In that
1041 * case, allow at least render node functionality.
1042 */
1043 if (vmw_fp->locked_master) {
1044 mutex_unlock(&dev->master_mutex);
1045
1046 if (flags & DRM_RENDER_ALLOW)
1047 return NULL;
1048
1049 DRM_ERROR("Dropped master trying to access ioctl that "
1050 "requires authentication.\n");
1051 return ERR_PTR(-EACCES);
1052 }
1053 mutex_unlock(&dev->master_mutex);
1054
1055 /*
1056 * Take the TTM lock. Possibly sleep waiting for the authenticating
1057 * master to become master again, or for a SIGTERM if the
1058 * authenticating master exits.
1059 */
1060 vmaster = vmw_master(file_priv->master);
1061 ret = ttm_read_lock(&vmaster->lock, true);
1062 if (unlikely(ret != 0))
1063 vmaster = ERR_PTR(ret);
1064
1065 return vmaster;
1066}
1067
1068static long vmw_generic_ioctl(struct file *filp, unsigned int cmd,
1069 unsigned long arg,
1070 long (*ioctl_func)(struct file *, unsigned int,
1071 unsigned long))
1072{
1073 struct drm_file *file_priv = filp->private_data;
1074 struct drm_device *dev = file_priv->minor->dev;
1075 unsigned int nr = DRM_IOCTL_NR(cmd);
1076 struct vmw_master *vmaster;
1077 unsigned int flags;
1078 long ret;
1079
1080 /*
1081 * Do extra checking on driver private ioctls.
1082 */
1083
1084 if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
1085 && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
1086 const struct drm_ioctl_desc *ioctl =
1087 &vmw_ioctls[nr - DRM_COMMAND_BASE];
1088
1089 if (nr == DRM_COMMAND_BASE + DRM_VMW_EXECBUF) {
1090 ret = (long) drm_ioctl_permit(ioctl->flags, file_priv);
1091 if (unlikely(ret != 0))
1092 return ret;
1093
1094 if (unlikely((cmd & (IOC_IN | IOC_OUT)) != IOC_IN))
1095 goto out_io_encoding;
1096
1097 return (long) vmw_execbuf_ioctl(dev, arg, file_priv,
1098 _IOC_SIZE(cmd));
1099 }
1100
1101 if (unlikely(ioctl->cmd != cmd))
1102 goto out_io_encoding;
1103
1104 flags = ioctl->flags;
1105 } else if (!drm_ioctl_flags(nr, &flags))
1106 return -EINVAL;
1107
1108 vmaster = vmw_master_check(dev, file_priv, flags);
1109 if (IS_ERR(vmaster)) {
1110 ret = PTR_ERR(vmaster);
1111
1112 if (ret != -ERESTARTSYS)
1113 DRM_INFO("IOCTL ERROR Command %d, Error %ld.\n",
1114 nr, ret);
1115 return ret;
1116 }
1117
1118 ret = ioctl_func(filp, cmd, arg);
1119 if (vmaster)
1120 ttm_read_unlock(&vmaster->lock);
1121
1122 return ret;
1123
1124out_io_encoding:
1125 DRM_ERROR("Invalid command format, ioctl %d\n",
1126 nr - DRM_COMMAND_BASE);
1127
1128 return -EINVAL;
1129}
1130
1131static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
1132 unsigned long arg)
1133{
1134 return vmw_generic_ioctl(filp, cmd, arg, &drm_ioctl);
1135}
1136
1137#ifdef CONFIG_COMPAT
1138static long vmw_compat_ioctl(struct file *filp, unsigned int cmd,
1139 unsigned long arg)
1140{
1141 return vmw_generic_ioctl(filp, cmd, arg, &drm_compat_ioctl);
1142}
1143#endif
1144
1145static void vmw_lastclose(struct drm_device *dev)
1146{
1147}
1148
1149static void vmw_master_init(struct vmw_master *vmaster)
1150{
1151 ttm_lock_init(&vmaster->lock);
1152}
1153
1154static int vmw_master_create(struct drm_device *dev,
1155 struct drm_master *master)
1156{
1157 struct vmw_master *vmaster;
1158
1159 vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
1160 if (unlikely(vmaster == NULL))
1161 return -ENOMEM;
1162
1163 vmw_master_init(vmaster);
1164 ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
1165 master->driver_priv = vmaster;
1166
1167 return 0;
1168}
1169
1170static void vmw_master_destroy(struct drm_device *dev,
1171 struct drm_master *master)
1172{
1173 struct vmw_master *vmaster = vmw_master(master);
1174
1175 master->driver_priv = NULL;
1176 kfree(vmaster);
1177}
1178
1179static int vmw_master_set(struct drm_device *dev,
1180 struct drm_file *file_priv,
1181 bool from_open)
1182{
1183 struct vmw_private *dev_priv = vmw_priv(dev);
1184 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
1185 struct vmw_master *active = dev_priv->active_master;
1186 struct vmw_master *vmaster = vmw_master(file_priv->master);
1187 int ret = 0;
1188
1189 if (active) {
1190 BUG_ON(active != &dev_priv->fbdev_master);
1191 ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile);
1192 if (unlikely(ret != 0))
1193 return ret;
1194
1195 ttm_lock_set_kill(&active->lock, true, SIGTERM);
1196 dev_priv->active_master = NULL;
1197 }
1198
1199 ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
1200 if (!from_open) {
1201 ttm_vt_unlock(&vmaster->lock);
1202 BUG_ON(vmw_fp->locked_master != file_priv->master);
1203 drm_master_put(&vmw_fp->locked_master);
1204 }
1205
1206 dev_priv->active_master = vmaster;
1207 drm_sysfs_hotplug_event(dev);
1208
1209 return 0;
1210}
1211
1212static void vmw_master_drop(struct drm_device *dev,
1213 struct drm_file *file_priv,
1214 bool from_release)
1215{
1216 struct vmw_private *dev_priv = vmw_priv(dev);
1217 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
1218 struct vmw_master *vmaster = vmw_master(file_priv->master);
1219 int ret;
1220
1221 /**
1222 * Make sure the master doesn't disappear while we have
1223 * it locked.
1224 */
1225
1226 vmw_fp->locked_master = drm_master_get(file_priv->master);
1227 ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile);
1228 vmw_kms_legacy_hotspot_clear(dev_priv);
1229 if (unlikely((ret != 0))) {
1230 DRM_ERROR("Unable to lock TTM at VT switch.\n");
1231 drm_master_put(&vmw_fp->locked_master);
1232 }
1233
1234 ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
1235
1236 if (!dev_priv->enable_fb)
1237 vmw_svga_disable(dev_priv);
1238
1239 dev_priv->active_master = &dev_priv->fbdev_master;
1240 ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
1241 ttm_vt_unlock(&dev_priv->fbdev_master.lock);
1242
1243 if (dev_priv->enable_fb)
1244 vmw_fb_on(dev_priv);
1245}
1246
1247/**
1248 * __vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1249 *
1250 * @dev_priv: Pointer to device private struct.
1251 * Needs the reservation sem to be held in non-exclusive mode.
1252 */
1253static void __vmw_svga_enable(struct vmw_private *dev_priv)
1254{
1255 spin_lock(&dev_priv->svga_lock);
1256 if (!dev_priv->bdev.man[TTM_PL_VRAM].use_type) {
1257 vmw_write(dev_priv, SVGA_REG_ENABLE, SVGA_REG_ENABLE);
1258 dev_priv->bdev.man[TTM_PL_VRAM].use_type = true;
1259 }
1260 spin_unlock(&dev_priv->svga_lock);
1261}
1262
1263/**
1264 * vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1265 *
1266 * @dev_priv: Pointer to device private struct.
1267 */
1268void vmw_svga_enable(struct vmw_private *dev_priv)
1269{
1270 ttm_read_lock(&dev_priv->reservation_sem, false);
1271 __vmw_svga_enable(dev_priv);
1272 ttm_read_unlock(&dev_priv->reservation_sem);
1273}
1274
1275/**
1276 * __vmw_svga_disable - Disable SVGA mode and use of VRAM.
1277 *
1278 * @dev_priv: Pointer to device private struct.
1279 * Needs the reservation sem to be held in exclusive mode.
1280 * Will not empty VRAM. VRAM must be emptied by caller.
1281 */
1282static void __vmw_svga_disable(struct vmw_private *dev_priv)
1283{
1284 spin_lock(&dev_priv->svga_lock);
1285 if (dev_priv->bdev.man[TTM_PL_VRAM].use_type) {
1286 dev_priv->bdev.man[TTM_PL_VRAM].use_type = false;
1287 vmw_write(dev_priv, SVGA_REG_ENABLE,
1288 SVGA_REG_ENABLE_HIDE |
1289 SVGA_REG_ENABLE_ENABLE);
1290 }
1291 spin_unlock(&dev_priv->svga_lock);
1292}
1293
1294/**
1295 * vmw_svga_disable - Disable SVGA_MODE, and use of VRAM. Keep the fifo
1296 * running.
1297 *
1298 * @dev_priv: Pointer to device private struct.
1299 * Will empty VRAM.
1300 */
1301void vmw_svga_disable(struct vmw_private *dev_priv)
1302{
1303 ttm_write_lock(&dev_priv->reservation_sem, false);
1304 spin_lock(&dev_priv->svga_lock);
1305 if (dev_priv->bdev.man[TTM_PL_VRAM].use_type) {
1306 dev_priv->bdev.man[TTM_PL_VRAM].use_type = false;
1307 spin_unlock(&dev_priv->svga_lock);
1308 if (ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM))
1309 DRM_ERROR("Failed evicting VRAM buffers.\n");
1310 vmw_write(dev_priv, SVGA_REG_ENABLE,
1311 SVGA_REG_ENABLE_HIDE |
1312 SVGA_REG_ENABLE_ENABLE);
1313 } else
1314 spin_unlock(&dev_priv->svga_lock);
1315 ttm_write_unlock(&dev_priv->reservation_sem);
1316}
1317
1318static void vmw_remove(struct pci_dev *pdev)
1319{
1320 struct drm_device *dev = pci_get_drvdata(pdev);
1321
1322 pci_disable_device(pdev);
1323 drm_put_dev(dev);
1324}
1325
1326static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
1327 void *ptr)
1328{
1329 struct vmw_private *dev_priv =
1330 container_of(nb, struct vmw_private, pm_nb);
1331
1332 switch (val) {
1333 case PM_HIBERNATION_PREPARE:
1334 if (dev_priv->enable_fb)
1335 vmw_fb_off(dev_priv);
1336 ttm_suspend_lock(&dev_priv->reservation_sem);
1337
1338 /*
1339 * This empties VRAM and unbinds all GMR bindings.
1340 * Buffer contents is moved to swappable memory.
1341 */
1342 vmw_execbuf_release_pinned_bo(dev_priv);
1343 vmw_resource_evict_all(dev_priv);
1344 vmw_release_device_early(dev_priv);
1345 ttm_bo_swapout_all(&dev_priv->bdev);
1346 vmw_fence_fifo_down(dev_priv->fman);
1347 break;
1348 case PM_POST_HIBERNATION:
1349 case PM_POST_RESTORE:
1350 vmw_fence_fifo_up(dev_priv->fman);
1351 ttm_suspend_unlock(&dev_priv->reservation_sem);
1352 if (dev_priv->enable_fb)
1353 vmw_fb_on(dev_priv);
1354 break;
1355 case PM_RESTORE_PREPARE:
1356 break;
1357 default:
1358 break;
1359 }
1360 return 0;
1361}
1362
1363static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
1364{
1365 struct drm_device *dev = pci_get_drvdata(pdev);
1366 struct vmw_private *dev_priv = vmw_priv(dev);
1367
1368 if (dev_priv->refuse_hibernation)
1369 return -EBUSY;
1370
1371 pci_save_state(pdev);
1372 pci_disable_device(pdev);
1373 pci_set_power_state(pdev, PCI_D3hot);
1374 return 0;
1375}
1376
1377static int vmw_pci_resume(struct pci_dev *pdev)
1378{
1379 pci_set_power_state(pdev, PCI_D0);
1380 pci_restore_state(pdev);
1381 return pci_enable_device(pdev);
1382}
1383
1384static int vmw_pm_suspend(struct device *kdev)
1385{
1386 struct pci_dev *pdev = to_pci_dev(kdev);
1387 struct pm_message dummy;
1388
1389 dummy.event = 0;
1390
1391 return vmw_pci_suspend(pdev, dummy);
1392}
1393
1394static int vmw_pm_resume(struct device *kdev)
1395{
1396 struct pci_dev *pdev = to_pci_dev(kdev);
1397
1398 return vmw_pci_resume(pdev);
1399}
1400
1401static int vmw_pm_freeze(struct device *kdev)
1402{
1403 struct pci_dev *pdev = to_pci_dev(kdev);
1404 struct drm_device *dev = pci_get_drvdata(pdev);
1405 struct vmw_private *dev_priv = vmw_priv(dev);
1406
1407 dev_priv->suspended = true;
1408 if (dev_priv->enable_fb)
1409 vmw_fifo_resource_dec(dev_priv);
1410
1411 if (atomic_read(&dev_priv->num_fifo_resources) != 0) {
1412 DRM_ERROR("Can't hibernate while 3D resources are active.\n");
1413 if (dev_priv->enable_fb)
1414 vmw_fifo_resource_inc(dev_priv);
1415 WARN_ON(vmw_request_device_late(dev_priv));
1416 dev_priv->suspended = false;
1417 return -EBUSY;
1418 }
1419
1420 if (dev_priv->enable_fb)
1421 __vmw_svga_disable(dev_priv);
1422
1423 vmw_release_device_late(dev_priv);
1424
1425 return 0;
1426}
1427
1428static int vmw_pm_restore(struct device *kdev)
1429{
1430 struct pci_dev *pdev = to_pci_dev(kdev);
1431 struct drm_device *dev = pci_get_drvdata(pdev);
1432 struct vmw_private *dev_priv = vmw_priv(dev);
1433 int ret;
1434
1435 vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
1436 (void) vmw_read(dev_priv, SVGA_REG_ID);
1437
1438 if (dev_priv->enable_fb)
1439 vmw_fifo_resource_inc(dev_priv);
1440
1441 ret = vmw_request_device(dev_priv);
1442 if (ret)
1443 return ret;
1444
1445 if (dev_priv->enable_fb)
1446 __vmw_svga_enable(dev_priv);
1447
1448 dev_priv->suspended = false;
1449
1450 return 0;
1451}
1452
1453static const struct dev_pm_ops vmw_pm_ops = {
1454 .freeze = vmw_pm_freeze,
1455 .thaw = vmw_pm_restore,
1456 .restore = vmw_pm_restore,
1457 .suspend = vmw_pm_suspend,
1458 .resume = vmw_pm_resume,
1459};
1460
1461static const struct file_operations vmwgfx_driver_fops = {
1462 .owner = THIS_MODULE,
1463 .open = drm_open,
1464 .release = drm_release,
1465 .unlocked_ioctl = vmw_unlocked_ioctl,
1466 .mmap = vmw_mmap,
1467 .poll = vmw_fops_poll,
1468 .read = vmw_fops_read,
1469#if defined(CONFIG_COMPAT)
1470 .compat_ioctl = vmw_compat_ioctl,
1471#endif
1472 .llseek = noop_llseek,
1473};
1474
1475static struct drm_driver driver = {
1476 .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
1477 DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
1478 .load = vmw_driver_load,
1479 .unload = vmw_driver_unload,
1480 .lastclose = vmw_lastclose,
1481 .irq_preinstall = vmw_irq_preinstall,
1482 .irq_postinstall = vmw_irq_postinstall,
1483 .irq_uninstall = vmw_irq_uninstall,
1484 .irq_handler = vmw_irq_handler,
1485 .get_vblank_counter = vmw_get_vblank_counter,
1486 .enable_vblank = vmw_enable_vblank,
1487 .disable_vblank = vmw_disable_vblank,
1488 .ioctls = vmw_ioctls,
1489 .num_ioctls = ARRAY_SIZE(vmw_ioctls),
1490 .master_create = vmw_master_create,
1491 .master_destroy = vmw_master_destroy,
1492 .master_set = vmw_master_set,
1493 .master_drop = vmw_master_drop,
1494 .open = vmw_driver_open,
1495 .postclose = vmw_postclose,
1496 .set_busid = drm_pci_set_busid,
1497
1498 .dumb_create = vmw_dumb_create,
1499 .dumb_map_offset = vmw_dumb_map_offset,
1500 .dumb_destroy = vmw_dumb_destroy,
1501
1502 .prime_fd_to_handle = vmw_prime_fd_to_handle,
1503 .prime_handle_to_fd = vmw_prime_handle_to_fd,
1504
1505 .fops = &vmwgfx_driver_fops,
1506 .name = VMWGFX_DRIVER_NAME,
1507 .desc = VMWGFX_DRIVER_DESC,
1508 .date = VMWGFX_DRIVER_DATE,
1509 .major = VMWGFX_DRIVER_MAJOR,
1510 .minor = VMWGFX_DRIVER_MINOR,
1511 .patchlevel = VMWGFX_DRIVER_PATCHLEVEL
1512};
1513
1514static struct pci_driver vmw_pci_driver = {
1515 .name = VMWGFX_DRIVER_NAME,
1516 .id_table = vmw_pci_id_list,
1517 .probe = vmw_probe,
1518 .remove = vmw_remove,
1519 .driver = {
1520 .pm = &vmw_pm_ops
1521 }
1522};
1523
1524static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1525{
1526 return drm_get_pci_dev(pdev, ent, &driver);
1527}
1528
1529static int __init vmwgfx_init(void)
1530{
1531 int ret;
1532
1533#ifdef CONFIG_VGA_CONSOLE
1534 if (vgacon_text_force())
1535 return -EINVAL;
1536#endif
1537
1538 ret = drm_pci_init(&driver, &vmw_pci_driver);
1539 if (ret)
1540 DRM_ERROR("Failed initializing DRM.\n");
1541 return ret;
1542}
1543
1544static void __exit vmwgfx_exit(void)
1545{
1546 drm_pci_exit(&driver, &vmw_pci_driver);
1547}
1548
1549module_init(vmwgfx_init);
1550module_exit(vmwgfx_exit);
1551
1552MODULE_AUTHOR("VMware Inc. and others");
1553MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
1554MODULE_LICENSE("GPL and additional rights");
1555MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "."
1556 __stringify(VMWGFX_DRIVER_MINOR) "."
1557 __stringify(VMWGFX_DRIVER_PATCHLEVEL) "."
1558 "0");
1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/**************************************************************************
3 *
4 * Copyright 2009-2023 VMware, Inc., Palo Alto, CA., USA
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
29#include "vmwgfx_drv.h"
30
31#include "vmwgfx_bo.h"
32#include "vmwgfx_binding.h"
33#include "vmwgfx_devcaps.h"
34#include "vmwgfx_mksstat.h"
35#include "ttm_object.h"
36
37#include <drm/drm_aperture.h>
38#include <drm/drm_drv.h>
39#include <drm/drm_fbdev_generic.h>
40#include <drm/drm_gem_ttm_helper.h>
41#include <drm/drm_ioctl.h>
42#include <drm/drm_module.h>
43#include <drm/drm_sysfs.h>
44#include <drm/ttm/ttm_range_manager.h>
45#include <drm/ttm/ttm_placement.h>
46#include <generated/utsrelease.h>
47
48#ifdef CONFIG_X86
49#include <asm/hypervisor.h>
50#endif
51#include <linux/cc_platform.h>
52#include <linux/dma-mapping.h>
53#include <linux/module.h>
54#include <linux/pci.h>
55#include <linux/version.h>
56
57#define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
58
59/*
60 * Fully encoded drm commands. Might move to vmw_drm.h
61 */
62
63#define DRM_IOCTL_VMW_GET_PARAM \
64 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM, \
65 struct drm_vmw_getparam_arg)
66#define DRM_IOCTL_VMW_ALLOC_DMABUF \
67 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF, \
68 union drm_vmw_alloc_dmabuf_arg)
69#define DRM_IOCTL_VMW_UNREF_DMABUF \
70 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF, \
71 struct drm_vmw_unref_dmabuf_arg)
72#define DRM_IOCTL_VMW_CURSOR_BYPASS \
73 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS, \
74 struct drm_vmw_cursor_bypass_arg)
75
76#define DRM_IOCTL_VMW_CONTROL_STREAM \
77 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM, \
78 struct drm_vmw_control_stream_arg)
79#define DRM_IOCTL_VMW_CLAIM_STREAM \
80 DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM, \
81 struct drm_vmw_stream_arg)
82#define DRM_IOCTL_VMW_UNREF_STREAM \
83 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM, \
84 struct drm_vmw_stream_arg)
85
86#define DRM_IOCTL_VMW_CREATE_CONTEXT \
87 DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT, \
88 struct drm_vmw_context_arg)
89#define DRM_IOCTL_VMW_UNREF_CONTEXT \
90 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT, \
91 struct drm_vmw_context_arg)
92#define DRM_IOCTL_VMW_CREATE_SURFACE \
93 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE, \
94 union drm_vmw_surface_create_arg)
95#define DRM_IOCTL_VMW_UNREF_SURFACE \
96 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE, \
97 struct drm_vmw_surface_arg)
98#define DRM_IOCTL_VMW_REF_SURFACE \
99 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE, \
100 union drm_vmw_surface_reference_arg)
101#define DRM_IOCTL_VMW_EXECBUF \
102 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF, \
103 struct drm_vmw_execbuf_arg)
104#define DRM_IOCTL_VMW_GET_3D_CAP \
105 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_GET_3D_CAP, \
106 struct drm_vmw_get_3d_cap_arg)
107#define DRM_IOCTL_VMW_FENCE_WAIT \
108 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT, \
109 struct drm_vmw_fence_wait_arg)
110#define DRM_IOCTL_VMW_FENCE_SIGNALED \
111 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_SIGNALED, \
112 struct drm_vmw_fence_signaled_arg)
113#define DRM_IOCTL_VMW_FENCE_UNREF \
114 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_UNREF, \
115 struct drm_vmw_fence_arg)
116#define DRM_IOCTL_VMW_FENCE_EVENT \
117 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_EVENT, \
118 struct drm_vmw_fence_event_arg)
119#define DRM_IOCTL_VMW_PRESENT \
120 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT, \
121 struct drm_vmw_present_arg)
122#define DRM_IOCTL_VMW_PRESENT_READBACK \
123 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT_READBACK, \
124 struct drm_vmw_present_readback_arg)
125#define DRM_IOCTL_VMW_UPDATE_LAYOUT \
126 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT, \
127 struct drm_vmw_update_layout_arg)
128#define DRM_IOCTL_VMW_CREATE_SHADER \
129 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SHADER, \
130 struct drm_vmw_shader_create_arg)
131#define DRM_IOCTL_VMW_UNREF_SHADER \
132 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SHADER, \
133 struct drm_vmw_shader_arg)
134#define DRM_IOCTL_VMW_GB_SURFACE_CREATE \
135 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE, \
136 union drm_vmw_gb_surface_create_arg)
137#define DRM_IOCTL_VMW_GB_SURFACE_REF \
138 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF, \
139 union drm_vmw_gb_surface_reference_arg)
140#define DRM_IOCTL_VMW_SYNCCPU \
141 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_SYNCCPU, \
142 struct drm_vmw_synccpu_arg)
143#define DRM_IOCTL_VMW_CREATE_EXTENDED_CONTEXT \
144 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_EXTENDED_CONTEXT, \
145 struct drm_vmw_context_arg)
146#define DRM_IOCTL_VMW_GB_SURFACE_CREATE_EXT \
147 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE_EXT, \
148 union drm_vmw_gb_surface_create_ext_arg)
149#define DRM_IOCTL_VMW_GB_SURFACE_REF_EXT \
150 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF_EXT, \
151 union drm_vmw_gb_surface_reference_ext_arg)
152#define DRM_IOCTL_VMW_MSG \
153 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_MSG, \
154 struct drm_vmw_msg_arg)
155#define DRM_IOCTL_VMW_MKSSTAT_RESET \
156 DRM_IO(DRM_COMMAND_BASE + DRM_VMW_MKSSTAT_RESET)
157#define DRM_IOCTL_VMW_MKSSTAT_ADD \
158 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_MKSSTAT_ADD, \
159 struct drm_vmw_mksstat_add_arg)
160#define DRM_IOCTL_VMW_MKSSTAT_REMOVE \
161 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_MKSSTAT_REMOVE, \
162 struct drm_vmw_mksstat_remove_arg)
163
164/*
165 * Ioctl definitions.
166 */
167
168static const struct drm_ioctl_desc vmw_ioctls[] = {
169 DRM_IOCTL_DEF_DRV(VMW_GET_PARAM, vmw_getparam_ioctl,
170 DRM_RENDER_ALLOW),
171 DRM_IOCTL_DEF_DRV(VMW_ALLOC_DMABUF, vmw_gem_object_create_ioctl,
172 DRM_RENDER_ALLOW),
173 DRM_IOCTL_DEF_DRV(VMW_UNREF_DMABUF, vmw_bo_unref_ioctl,
174 DRM_RENDER_ALLOW),
175 DRM_IOCTL_DEF_DRV(VMW_CURSOR_BYPASS,
176 vmw_kms_cursor_bypass_ioctl,
177 DRM_MASTER),
178
179 DRM_IOCTL_DEF_DRV(VMW_CONTROL_STREAM, vmw_overlay_ioctl,
180 DRM_MASTER),
181 DRM_IOCTL_DEF_DRV(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
182 DRM_MASTER),
183 DRM_IOCTL_DEF_DRV(VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
184 DRM_MASTER),
185
186 DRM_IOCTL_DEF_DRV(VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
187 DRM_RENDER_ALLOW),
188 DRM_IOCTL_DEF_DRV(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
189 DRM_RENDER_ALLOW),
190 DRM_IOCTL_DEF_DRV(VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
191 DRM_RENDER_ALLOW),
192 DRM_IOCTL_DEF_DRV(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
193 DRM_RENDER_ALLOW),
194 DRM_IOCTL_DEF_DRV(VMW_REF_SURFACE, vmw_surface_reference_ioctl,
195 DRM_RENDER_ALLOW),
196 DRM_IOCTL_DEF_DRV(VMW_EXECBUF, vmw_execbuf_ioctl,
197 DRM_RENDER_ALLOW),
198 DRM_IOCTL_DEF_DRV(VMW_FENCE_WAIT, vmw_fence_obj_wait_ioctl,
199 DRM_RENDER_ALLOW),
200 DRM_IOCTL_DEF_DRV(VMW_FENCE_SIGNALED,
201 vmw_fence_obj_signaled_ioctl,
202 DRM_RENDER_ALLOW),
203 DRM_IOCTL_DEF_DRV(VMW_FENCE_UNREF, vmw_fence_obj_unref_ioctl,
204 DRM_RENDER_ALLOW),
205 DRM_IOCTL_DEF_DRV(VMW_FENCE_EVENT, vmw_fence_event_ioctl,
206 DRM_RENDER_ALLOW),
207 DRM_IOCTL_DEF_DRV(VMW_GET_3D_CAP, vmw_get_cap_3d_ioctl,
208 DRM_RENDER_ALLOW),
209
210 /* these allow direct access to the framebuffers mark as master only */
211 DRM_IOCTL_DEF_DRV(VMW_PRESENT, vmw_present_ioctl,
212 DRM_MASTER | DRM_AUTH),
213 DRM_IOCTL_DEF_DRV(VMW_PRESENT_READBACK,
214 vmw_present_readback_ioctl,
215 DRM_MASTER | DRM_AUTH),
216 /*
217 * The permissions of the below ioctl are overridden in
218 * vmw_generic_ioctl(). We require either
219 * DRM_MASTER or capable(CAP_SYS_ADMIN).
220 */
221 DRM_IOCTL_DEF_DRV(VMW_UPDATE_LAYOUT,
222 vmw_kms_update_layout_ioctl,
223 DRM_RENDER_ALLOW),
224 DRM_IOCTL_DEF_DRV(VMW_CREATE_SHADER,
225 vmw_shader_define_ioctl,
226 DRM_RENDER_ALLOW),
227 DRM_IOCTL_DEF_DRV(VMW_UNREF_SHADER,
228 vmw_shader_destroy_ioctl,
229 DRM_RENDER_ALLOW),
230 DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_CREATE,
231 vmw_gb_surface_define_ioctl,
232 DRM_RENDER_ALLOW),
233 DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_REF,
234 vmw_gb_surface_reference_ioctl,
235 DRM_RENDER_ALLOW),
236 DRM_IOCTL_DEF_DRV(VMW_SYNCCPU,
237 vmw_user_bo_synccpu_ioctl,
238 DRM_RENDER_ALLOW),
239 DRM_IOCTL_DEF_DRV(VMW_CREATE_EXTENDED_CONTEXT,
240 vmw_extended_context_define_ioctl,
241 DRM_RENDER_ALLOW),
242 DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_CREATE_EXT,
243 vmw_gb_surface_define_ext_ioctl,
244 DRM_RENDER_ALLOW),
245 DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_REF_EXT,
246 vmw_gb_surface_reference_ext_ioctl,
247 DRM_RENDER_ALLOW),
248 DRM_IOCTL_DEF_DRV(VMW_MSG,
249 vmw_msg_ioctl,
250 DRM_RENDER_ALLOW),
251 DRM_IOCTL_DEF_DRV(VMW_MKSSTAT_RESET,
252 vmw_mksstat_reset_ioctl,
253 DRM_RENDER_ALLOW),
254 DRM_IOCTL_DEF_DRV(VMW_MKSSTAT_ADD,
255 vmw_mksstat_add_ioctl,
256 DRM_RENDER_ALLOW),
257 DRM_IOCTL_DEF_DRV(VMW_MKSSTAT_REMOVE,
258 vmw_mksstat_remove_ioctl,
259 DRM_RENDER_ALLOW),
260};
261
262static const struct pci_device_id vmw_pci_id_list[] = {
263 { PCI_DEVICE(PCI_VENDOR_ID_VMWARE, VMWGFX_PCI_ID_SVGA2) },
264 { PCI_DEVICE(PCI_VENDOR_ID_VMWARE, VMWGFX_PCI_ID_SVGA3) },
265 { }
266};
267MODULE_DEVICE_TABLE(pci, vmw_pci_id_list);
268
269static int vmw_restrict_iommu;
270static int vmw_force_coherent;
271static int vmw_restrict_dma_mask;
272static int vmw_assume_16bpp;
273
274static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
275static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
276 void *ptr);
277
278MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages");
279module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600);
280MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages");
281module_param_named(force_coherent, vmw_force_coherent, int, 0600);
282MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU");
283module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600);
284MODULE_PARM_DESC(assume_16bpp, "Assume 16-bpp when filtering modes");
285module_param_named(assume_16bpp, vmw_assume_16bpp, int, 0600);
286
287
288struct bitmap_name {
289 uint32 value;
290 const char *name;
291};
292
293static const struct bitmap_name cap1_names[] = {
294 { SVGA_CAP_RECT_COPY, "rect copy" },
295 { SVGA_CAP_CURSOR, "cursor" },
296 { SVGA_CAP_CURSOR_BYPASS, "cursor bypass" },
297 { SVGA_CAP_CURSOR_BYPASS_2, "cursor bypass 2" },
298 { SVGA_CAP_8BIT_EMULATION, "8bit emulation" },
299 { SVGA_CAP_ALPHA_CURSOR, "alpha cursor" },
300 { SVGA_CAP_3D, "3D" },
301 { SVGA_CAP_EXTENDED_FIFO, "extended fifo" },
302 { SVGA_CAP_MULTIMON, "multimon" },
303 { SVGA_CAP_PITCHLOCK, "pitchlock" },
304 { SVGA_CAP_IRQMASK, "irq mask" },
305 { SVGA_CAP_DISPLAY_TOPOLOGY, "display topology" },
306 { SVGA_CAP_GMR, "gmr" },
307 { SVGA_CAP_TRACES, "traces" },
308 { SVGA_CAP_GMR2, "gmr2" },
309 { SVGA_CAP_SCREEN_OBJECT_2, "screen object 2" },
310 { SVGA_CAP_COMMAND_BUFFERS, "command buffers" },
311 { SVGA_CAP_CMD_BUFFERS_2, "command buffers 2" },
312 { SVGA_CAP_GBOBJECTS, "gbobject" },
313 { SVGA_CAP_DX, "dx" },
314 { SVGA_CAP_HP_CMD_QUEUE, "hp cmd queue" },
315 { SVGA_CAP_NO_BB_RESTRICTION, "no bb restriction" },
316 { SVGA_CAP_CAP2_REGISTER, "cap2 register" },
317};
318
319
320static const struct bitmap_name cap2_names[] = {
321 { SVGA_CAP2_GROW_OTABLE, "grow otable" },
322 { SVGA_CAP2_INTRA_SURFACE_COPY, "intra surface copy" },
323 { SVGA_CAP2_DX2, "dx2" },
324 { SVGA_CAP2_GB_MEMSIZE_2, "gb memsize 2" },
325 { SVGA_CAP2_SCREENDMA_REG, "screendma reg" },
326 { SVGA_CAP2_OTABLE_PTDEPTH_2, "otable ptdepth2" },
327 { SVGA_CAP2_NON_MS_TO_MS_STRETCHBLT, "non ms to ms stretchblt" },
328 { SVGA_CAP2_CURSOR_MOB, "cursor mob" },
329 { SVGA_CAP2_MSHINT, "mshint" },
330 { SVGA_CAP2_CB_MAX_SIZE_4MB, "cb max size 4mb" },
331 { SVGA_CAP2_DX3, "dx3" },
332 { SVGA_CAP2_FRAME_TYPE, "frame type" },
333 { SVGA_CAP2_COTABLE_COPY, "cotable copy" },
334 { SVGA_CAP2_TRACE_FULL_FB, "trace full fb" },
335 { SVGA_CAP2_EXTRA_REGS, "extra regs" },
336 { SVGA_CAP2_LO_STAGING, "lo staging" },
337};
338
339static void vmw_print_bitmap(struct drm_device *drm,
340 const char *prefix, uint32_t bitmap,
341 const struct bitmap_name *bnames,
342 uint32_t num_names)
343{
344 char buf[512];
345 uint32_t i;
346 uint32_t offset = 0;
347 for (i = 0; i < num_names; ++i) {
348 if ((bitmap & bnames[i].value) != 0) {
349 offset += snprintf(buf + offset,
350 ARRAY_SIZE(buf) - offset,
351 "%s, ", bnames[i].name);
352 bitmap &= ~bnames[i].value;
353 }
354 }
355
356 drm_info(drm, "%s: %s\n", prefix, buf);
357 if (bitmap != 0)
358 drm_dbg(drm, "%s: unknown enums: %x\n", prefix, bitmap);
359}
360
361
362static void vmw_print_sm_type(struct vmw_private *dev_priv)
363{
364 static const char *names[] = {
365 [VMW_SM_LEGACY] = "Legacy",
366 [VMW_SM_4] = "SM4",
367 [VMW_SM_4_1] = "SM4_1",
368 [VMW_SM_5] = "SM_5",
369 [VMW_SM_5_1X] = "SM_5_1X",
370 [VMW_SM_MAX] = "Invalid"
371 };
372 BUILD_BUG_ON(ARRAY_SIZE(names) != (VMW_SM_MAX + 1));
373 drm_info(&dev_priv->drm, "Available shader model: %s.\n",
374 names[dev_priv->sm_type]);
375}
376
377/**
378 * vmw_dummy_query_bo_create - create a bo to hold a dummy query result
379 *
380 * @dev_priv: A device private structure.
381 *
382 * This function creates a small buffer object that holds the query
383 * result for dummy queries emitted as query barriers.
384 * The function will then map the first page and initialize a pending
385 * occlusion query result structure, Finally it will unmap the buffer.
386 * No interruptible waits are done within this function.
387 *
388 * Returns an error if bo creation or initialization fails.
389 */
390static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv)
391{
392 int ret;
393 struct vmw_bo *vbo;
394 struct ttm_bo_kmap_obj map;
395 volatile SVGA3dQueryResult *result;
396 bool dummy;
397 struct vmw_bo_params bo_params = {
398 .domain = VMW_BO_DOMAIN_SYS,
399 .busy_domain = VMW_BO_DOMAIN_SYS,
400 .bo_type = ttm_bo_type_kernel,
401 .size = PAGE_SIZE,
402 .pin = true
403 };
404
405 /*
406 * Create the vbo as pinned, so that a tryreserve will
407 * immediately succeed. This is because we're the only
408 * user of the bo currently.
409 */
410 ret = vmw_bo_create(dev_priv, &bo_params, &vbo);
411 if (unlikely(ret != 0))
412 return ret;
413
414 ret = ttm_bo_reserve(&vbo->tbo, false, true, NULL);
415 BUG_ON(ret != 0);
416 vmw_bo_pin_reserved(vbo, true);
417
418 ret = ttm_bo_kmap(&vbo->tbo, 0, 1, &map);
419 if (likely(ret == 0)) {
420 result = ttm_kmap_obj_virtual(&map, &dummy);
421 result->totalSize = sizeof(*result);
422 result->state = SVGA3D_QUERYSTATE_PENDING;
423 result->result32 = 0xff;
424 ttm_bo_kunmap(&map);
425 }
426 vmw_bo_pin_reserved(vbo, false);
427 ttm_bo_unreserve(&vbo->tbo);
428
429 if (unlikely(ret != 0)) {
430 DRM_ERROR("Dummy query buffer map failed.\n");
431 vmw_bo_unreference(&vbo);
432 } else
433 dev_priv->dummy_query_bo = vbo;
434
435 return ret;
436}
437
438static int vmw_device_init(struct vmw_private *dev_priv)
439{
440 bool uses_fb_traces = false;
441
442 dev_priv->enable_state = vmw_read(dev_priv, SVGA_REG_ENABLE);
443 dev_priv->config_done_state = vmw_read(dev_priv, SVGA_REG_CONFIG_DONE);
444 dev_priv->traces_state = vmw_read(dev_priv, SVGA_REG_TRACES);
445
446 vmw_write(dev_priv, SVGA_REG_ENABLE, SVGA_REG_ENABLE_ENABLE |
447 SVGA_REG_ENABLE_HIDE);
448
449 uses_fb_traces = !vmw_cmd_supported(dev_priv) &&
450 (dev_priv->capabilities & SVGA_CAP_TRACES) != 0;
451
452 vmw_write(dev_priv, SVGA_REG_TRACES, uses_fb_traces);
453 dev_priv->fifo = vmw_fifo_create(dev_priv);
454 if (IS_ERR(dev_priv->fifo)) {
455 int err = PTR_ERR(dev_priv->fifo);
456 dev_priv->fifo = NULL;
457 return err;
458 } else if (!dev_priv->fifo) {
459 vmw_write(dev_priv, SVGA_REG_CONFIG_DONE, 1);
460 }
461
462 dev_priv->last_read_seqno = vmw_fence_read(dev_priv);
463 atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
464 return 0;
465}
466
467static void vmw_device_fini(struct vmw_private *vmw)
468{
469 /*
470 * Legacy sync
471 */
472 vmw_write(vmw, SVGA_REG_SYNC, SVGA_SYNC_GENERIC);
473 while (vmw_read(vmw, SVGA_REG_BUSY) != 0)
474 ;
475
476 vmw->last_read_seqno = vmw_fence_read(vmw);
477
478 vmw_write(vmw, SVGA_REG_CONFIG_DONE,
479 vmw->config_done_state);
480 vmw_write(vmw, SVGA_REG_ENABLE,
481 vmw->enable_state);
482 vmw_write(vmw, SVGA_REG_TRACES,
483 vmw->traces_state);
484
485 vmw_fifo_destroy(vmw);
486}
487
488/**
489 * vmw_request_device_late - Perform late device setup
490 *
491 * @dev_priv: Pointer to device private.
492 *
493 * This function performs setup of otables and enables large command
494 * buffer submission. These tasks are split out to a separate function
495 * because it reverts vmw_release_device_early and is intended to be used
496 * by an error path in the hibernation code.
497 */
498static int vmw_request_device_late(struct vmw_private *dev_priv)
499{
500 int ret;
501
502 if (dev_priv->has_mob) {
503 ret = vmw_otables_setup(dev_priv);
504 if (unlikely(ret != 0)) {
505 DRM_ERROR("Unable to initialize "
506 "guest Memory OBjects.\n");
507 return ret;
508 }
509 }
510
511 if (dev_priv->cman) {
512 ret = vmw_cmdbuf_set_pool_size(dev_priv->cman, 256*4096);
513 if (ret) {
514 struct vmw_cmdbuf_man *man = dev_priv->cman;
515
516 dev_priv->cman = NULL;
517 vmw_cmdbuf_man_destroy(man);
518 }
519 }
520
521 return 0;
522}
523
524static int vmw_request_device(struct vmw_private *dev_priv)
525{
526 int ret;
527
528 ret = vmw_device_init(dev_priv);
529 if (unlikely(ret != 0)) {
530 DRM_ERROR("Unable to initialize the device.\n");
531 return ret;
532 }
533 vmw_fence_fifo_up(dev_priv->fman);
534 dev_priv->cman = vmw_cmdbuf_man_create(dev_priv);
535 if (IS_ERR(dev_priv->cman)) {
536 dev_priv->cman = NULL;
537 dev_priv->sm_type = VMW_SM_LEGACY;
538 }
539
540 ret = vmw_request_device_late(dev_priv);
541 if (ret)
542 goto out_no_mob;
543
544 ret = vmw_dummy_query_bo_create(dev_priv);
545 if (unlikely(ret != 0))
546 goto out_no_query_bo;
547
548 return 0;
549
550out_no_query_bo:
551 if (dev_priv->cman)
552 vmw_cmdbuf_remove_pool(dev_priv->cman);
553 if (dev_priv->has_mob) {
554 struct ttm_resource_manager *man;
555
556 man = ttm_manager_type(&dev_priv->bdev, VMW_PL_MOB);
557 ttm_resource_manager_evict_all(&dev_priv->bdev, man);
558 vmw_otables_takedown(dev_priv);
559 }
560 if (dev_priv->cman)
561 vmw_cmdbuf_man_destroy(dev_priv->cman);
562out_no_mob:
563 vmw_fence_fifo_down(dev_priv->fman);
564 vmw_device_fini(dev_priv);
565 return ret;
566}
567
568/**
569 * vmw_release_device_early - Early part of fifo takedown.
570 *
571 * @dev_priv: Pointer to device private struct.
572 *
573 * This is the first part of command submission takedown, to be called before
574 * buffer management is taken down.
575 */
576static void vmw_release_device_early(struct vmw_private *dev_priv)
577{
578 /*
579 * Previous destructions should've released
580 * the pinned bo.
581 */
582
583 BUG_ON(dev_priv->pinned_bo != NULL);
584
585 vmw_bo_unreference(&dev_priv->dummy_query_bo);
586 if (dev_priv->cman)
587 vmw_cmdbuf_remove_pool(dev_priv->cman);
588
589 if (dev_priv->has_mob) {
590 struct ttm_resource_manager *man;
591
592 man = ttm_manager_type(&dev_priv->bdev, VMW_PL_MOB);
593 ttm_resource_manager_evict_all(&dev_priv->bdev, man);
594 vmw_otables_takedown(dev_priv);
595 }
596}
597
598/**
599 * vmw_release_device_late - Late part of fifo takedown.
600 *
601 * @dev_priv: Pointer to device private struct.
602 *
603 * This is the last part of the command submission takedown, to be called when
604 * command submission is no longer needed. It may wait on pending fences.
605 */
606static void vmw_release_device_late(struct vmw_private *dev_priv)
607{
608 vmw_fence_fifo_down(dev_priv->fman);
609 if (dev_priv->cman)
610 vmw_cmdbuf_man_destroy(dev_priv->cman);
611
612 vmw_device_fini(dev_priv);
613}
614
615/*
616 * Sets the initial_[width|height] fields on the given vmw_private.
617 *
618 * It does so by reading SVGA_REG_[WIDTH|HEIGHT] regs and then
619 * clamping the value to fb_max_[width|height] fields and the
620 * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
621 * If the values appear to be invalid, set them to
622 * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
623 */
624static void vmw_get_initial_size(struct vmw_private *dev_priv)
625{
626 uint32_t width;
627 uint32_t height;
628
629 width = vmw_read(dev_priv, SVGA_REG_WIDTH);
630 height = vmw_read(dev_priv, SVGA_REG_HEIGHT);
631
632 width = max_t(uint32_t, width, VMWGFX_MIN_INITIAL_WIDTH);
633 height = max_t(uint32_t, height, VMWGFX_MIN_INITIAL_HEIGHT);
634
635 if (width > dev_priv->fb_max_width ||
636 height > dev_priv->fb_max_height) {
637
638 /*
639 * This is a host error and shouldn't occur.
640 */
641
642 width = VMWGFX_MIN_INITIAL_WIDTH;
643 height = VMWGFX_MIN_INITIAL_HEIGHT;
644 }
645
646 dev_priv->initial_width = width;
647 dev_priv->initial_height = height;
648}
649
650/**
651 * vmw_dma_select_mode - Determine how DMA mappings should be set up for this
652 * system.
653 *
654 * @dev_priv: Pointer to a struct vmw_private
655 *
656 * This functions tries to determine what actions need to be taken by the
657 * driver to make system pages visible to the device.
658 * If this function decides that DMA is not possible, it returns -EINVAL.
659 * The driver may then try to disable features of the device that require
660 * DMA.
661 */
662static int vmw_dma_select_mode(struct vmw_private *dev_priv)
663{
664 static const char *names[vmw_dma_map_max] = {
665 [vmw_dma_alloc_coherent] = "Using coherent TTM pages.",
666 [vmw_dma_map_populate] = "Caching DMA mappings.",
667 [vmw_dma_map_bind] = "Giving up DMA mappings early."};
668
669 /* TTM currently doesn't fully support SEV encryption. */
670 if (cc_platform_has(CC_ATTR_MEM_ENCRYPT))
671 return -EINVAL;
672
673 if (vmw_force_coherent)
674 dev_priv->map_mode = vmw_dma_alloc_coherent;
675 else if (vmw_restrict_iommu)
676 dev_priv->map_mode = vmw_dma_map_bind;
677 else
678 dev_priv->map_mode = vmw_dma_map_populate;
679
680 drm_info(&dev_priv->drm,
681 "DMA map mode: %s\n", names[dev_priv->map_mode]);
682 return 0;
683}
684
685/**
686 * vmw_dma_masks - set required page- and dma masks
687 *
688 * @dev_priv: Pointer to struct drm-device
689 *
690 * With 32-bit we can only handle 32 bit PFNs. Optionally set that
691 * restriction also for 64-bit systems.
692 */
693static int vmw_dma_masks(struct vmw_private *dev_priv)
694{
695 struct drm_device *dev = &dev_priv->drm;
696 int ret = 0;
697
698 ret = dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64));
699 if (sizeof(unsigned long) == 4 || vmw_restrict_dma_mask) {
700 drm_info(&dev_priv->drm,
701 "Restricting DMA addresses to 44 bits.\n");
702 return dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(44));
703 }
704
705 return ret;
706}
707
708static int vmw_vram_manager_init(struct vmw_private *dev_priv)
709{
710 int ret;
711 ret = ttm_range_man_init(&dev_priv->bdev, TTM_PL_VRAM, false,
712 dev_priv->vram_size >> PAGE_SHIFT);
713 ttm_resource_manager_set_used(ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM), false);
714 return ret;
715}
716
717static void vmw_vram_manager_fini(struct vmw_private *dev_priv)
718{
719 ttm_range_man_fini(&dev_priv->bdev, TTM_PL_VRAM);
720}
721
722static int vmw_setup_pci_resources(struct vmw_private *dev,
723 u32 pci_id)
724{
725 resource_size_t rmmio_start;
726 resource_size_t rmmio_size;
727 resource_size_t fifo_start;
728 resource_size_t fifo_size;
729 int ret;
730 struct pci_dev *pdev = to_pci_dev(dev->drm.dev);
731
732 pci_set_master(pdev);
733
734 ret = pci_request_regions(pdev, "vmwgfx probe");
735 if (ret)
736 return ret;
737
738 dev->pci_id = pci_id;
739 if (pci_id == VMWGFX_PCI_ID_SVGA3) {
740 rmmio_start = pci_resource_start(pdev, 0);
741 rmmio_size = pci_resource_len(pdev, 0);
742 dev->vram_start = pci_resource_start(pdev, 2);
743 dev->vram_size = pci_resource_len(pdev, 2);
744
745 drm_info(&dev->drm,
746 "Register MMIO at 0x%pa size is %llu kiB\n",
747 &rmmio_start, (uint64_t)rmmio_size / 1024);
748 dev->rmmio = devm_ioremap(dev->drm.dev,
749 rmmio_start,
750 rmmio_size);
751 if (!dev->rmmio) {
752 drm_err(&dev->drm,
753 "Failed mapping registers mmio memory.\n");
754 pci_release_regions(pdev);
755 return -ENOMEM;
756 }
757 } else if (pci_id == VMWGFX_PCI_ID_SVGA2) {
758 dev->io_start = pci_resource_start(pdev, 0);
759 dev->vram_start = pci_resource_start(pdev, 1);
760 dev->vram_size = pci_resource_len(pdev, 1);
761 fifo_start = pci_resource_start(pdev, 2);
762 fifo_size = pci_resource_len(pdev, 2);
763
764 drm_info(&dev->drm,
765 "FIFO at %pa size is %llu kiB\n",
766 &fifo_start, (uint64_t)fifo_size / 1024);
767 dev->fifo_mem = devm_memremap(dev->drm.dev,
768 fifo_start,
769 fifo_size,
770 MEMREMAP_WB);
771
772 if (IS_ERR(dev->fifo_mem)) {
773 drm_err(&dev->drm,
774 "Failed mapping FIFO memory.\n");
775 pci_release_regions(pdev);
776 return PTR_ERR(dev->fifo_mem);
777 }
778 } else {
779 pci_release_regions(pdev);
780 return -EINVAL;
781 }
782
783 /*
784 * This is approximate size of the vram, the exact size will only
785 * be known after we read SVGA_REG_VRAM_SIZE. The PCI resource
786 * size will be equal to or bigger than the size reported by
787 * SVGA_REG_VRAM_SIZE.
788 */
789 drm_info(&dev->drm,
790 "VRAM at %pa size is %llu kiB\n",
791 &dev->vram_start, (uint64_t)dev->vram_size / 1024);
792
793 return 0;
794}
795
796static int vmw_detect_version(struct vmw_private *dev)
797{
798 uint32_t svga_id;
799
800 vmw_write(dev, SVGA_REG_ID, vmw_is_svga_v3(dev) ?
801 SVGA_ID_3 : SVGA_ID_2);
802 svga_id = vmw_read(dev, SVGA_REG_ID);
803 if (svga_id != SVGA_ID_2 && svga_id != SVGA_ID_3) {
804 drm_err(&dev->drm,
805 "Unsupported SVGA ID 0x%x on chipset 0x%x\n",
806 svga_id, dev->pci_id);
807 return -ENOSYS;
808 }
809 BUG_ON(vmw_is_svga_v3(dev) && (svga_id != SVGA_ID_3));
810 drm_info(&dev->drm,
811 "Running on SVGA version %d.\n", (svga_id & 0xff));
812 return 0;
813}
814
815static void vmw_write_driver_id(struct vmw_private *dev)
816{
817 if ((dev->capabilities2 & SVGA_CAP2_DX2) != 0) {
818 vmw_write(dev, SVGA_REG_GUEST_DRIVER_ID,
819 SVGA_REG_GUEST_DRIVER_ID_LINUX);
820
821 vmw_write(dev, SVGA_REG_GUEST_DRIVER_VERSION1,
822 LINUX_VERSION_MAJOR << 24 |
823 LINUX_VERSION_PATCHLEVEL << 16 |
824 LINUX_VERSION_SUBLEVEL);
825 vmw_write(dev, SVGA_REG_GUEST_DRIVER_VERSION2,
826 VMWGFX_DRIVER_MAJOR << 24 |
827 VMWGFX_DRIVER_MINOR << 16 |
828 VMWGFX_DRIVER_PATCHLEVEL);
829 vmw_write(dev, SVGA_REG_GUEST_DRIVER_VERSION3, 0);
830
831 vmw_write(dev, SVGA_REG_GUEST_DRIVER_ID,
832 SVGA_REG_GUEST_DRIVER_ID_SUBMIT);
833 }
834}
835
836static void vmw_sw_context_init(struct vmw_private *dev_priv)
837{
838 struct vmw_sw_context *sw_context = &dev_priv->ctx;
839
840 hash_init(sw_context->res_ht);
841}
842
843static void vmw_sw_context_fini(struct vmw_private *dev_priv)
844{
845 struct vmw_sw_context *sw_context = &dev_priv->ctx;
846
847 vfree(sw_context->cmd_bounce);
848 if (sw_context->staged_bindings)
849 vmw_binding_state_free(sw_context->staged_bindings);
850}
851
852static int vmw_driver_load(struct vmw_private *dev_priv, u32 pci_id)
853{
854 int ret;
855 enum vmw_res_type i;
856 bool refuse_dma = false;
857 struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
858
859 dev_priv->drm.dev_private = dev_priv;
860
861 vmw_sw_context_init(dev_priv);
862
863 mutex_init(&dev_priv->cmdbuf_mutex);
864 mutex_init(&dev_priv->binding_mutex);
865 spin_lock_init(&dev_priv->resource_lock);
866 spin_lock_init(&dev_priv->hw_lock);
867 spin_lock_init(&dev_priv->waiter_lock);
868 spin_lock_init(&dev_priv->cursor_lock);
869
870 ret = vmw_setup_pci_resources(dev_priv, pci_id);
871 if (ret)
872 return ret;
873 ret = vmw_detect_version(dev_priv);
874 if (ret)
875 goto out_no_pci_or_version;
876
877
878 for (i = vmw_res_context; i < vmw_res_max; ++i) {
879 idr_init_base(&dev_priv->res_idr[i], 1);
880 INIT_LIST_HEAD(&dev_priv->res_lru[i]);
881 }
882
883 init_waitqueue_head(&dev_priv->fence_queue);
884 init_waitqueue_head(&dev_priv->fifo_queue);
885 dev_priv->fence_queue_waiters = 0;
886 dev_priv->fifo_queue_waiters = 0;
887
888 dev_priv->used_memory_size = 0;
889
890 dev_priv->assume_16bpp = !!vmw_assume_16bpp;
891
892 dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
893 vmw_print_bitmap(&dev_priv->drm, "Capabilities",
894 dev_priv->capabilities,
895 cap1_names, ARRAY_SIZE(cap1_names));
896 if (dev_priv->capabilities & SVGA_CAP_CAP2_REGISTER) {
897 dev_priv->capabilities2 = vmw_read(dev_priv, SVGA_REG_CAP2);
898 vmw_print_bitmap(&dev_priv->drm, "Capabilities2",
899 dev_priv->capabilities2,
900 cap2_names, ARRAY_SIZE(cap2_names));
901 }
902
903 if (!vmwgfx_supported(dev_priv)) {
904 vmw_disable_backdoor();
905 drm_err_once(&dev_priv->drm,
906 "vmwgfx seems to be running on an unsupported hypervisor.");
907 drm_err_once(&dev_priv->drm,
908 "This configuration is likely broken.");
909 drm_err_once(&dev_priv->drm,
910 "Please switch to a supported graphics device to avoid problems.");
911 }
912
913 ret = vmw_dma_select_mode(dev_priv);
914 if (unlikely(ret != 0)) {
915 drm_info(&dev_priv->drm,
916 "Restricting capabilities since DMA not available.\n");
917 refuse_dma = true;
918 if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS)
919 drm_info(&dev_priv->drm,
920 "Disabling 3D acceleration.\n");
921 }
922
923 dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
924 dev_priv->fifo_mem_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
925 dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
926 dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
927
928 vmw_get_initial_size(dev_priv);
929
930 if (dev_priv->capabilities & SVGA_CAP_GMR2) {
931 dev_priv->max_gmr_ids =
932 vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
933 dev_priv->max_gmr_pages =
934 vmw_read(dev_priv, SVGA_REG_GMRS_MAX_PAGES);
935 dev_priv->memory_size =
936 vmw_read(dev_priv, SVGA_REG_MEMORY_SIZE);
937 dev_priv->memory_size -= dev_priv->vram_size;
938 } else {
939 /*
940 * An arbitrary limit of 512MiB on surface
941 * memory. But all HWV8 hardware supports GMR2.
942 */
943 dev_priv->memory_size = 512*1024*1024;
944 }
945 dev_priv->max_mob_pages = 0;
946 dev_priv->max_mob_size = 0;
947 if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
948 uint64_t mem_size;
949
950 if (dev_priv->capabilities2 & SVGA_CAP2_GB_MEMSIZE_2)
951 mem_size = vmw_read(dev_priv,
952 SVGA_REG_GBOBJECT_MEM_SIZE_KB);
953 else
954 mem_size =
955 vmw_read(dev_priv,
956 SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB);
957
958 /*
959 * Workaround for low memory 2D VMs to compensate for the
960 * allocation taken by fbdev
961 */
962 if (!(dev_priv->capabilities & SVGA_CAP_3D))
963 mem_size *= 3;
964
965 dev_priv->max_mob_pages = mem_size * 1024 / PAGE_SIZE;
966 dev_priv->max_primary_mem =
967 vmw_read(dev_priv, SVGA_REG_MAX_PRIMARY_MEM);
968 dev_priv->max_mob_size =
969 vmw_read(dev_priv, SVGA_REG_MOB_MAX_SIZE);
970 dev_priv->stdu_max_width =
971 vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_WIDTH);
972 dev_priv->stdu_max_height =
973 vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_HEIGHT);
974
975 vmw_write(dev_priv, SVGA_REG_DEV_CAP,
976 SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH);
977 dev_priv->texture_max_width = vmw_read(dev_priv,
978 SVGA_REG_DEV_CAP);
979 vmw_write(dev_priv, SVGA_REG_DEV_CAP,
980 SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT);
981 dev_priv->texture_max_height = vmw_read(dev_priv,
982 SVGA_REG_DEV_CAP);
983 } else {
984 dev_priv->texture_max_width = 8192;
985 dev_priv->texture_max_height = 8192;
986 dev_priv->max_primary_mem = dev_priv->vram_size;
987 }
988 drm_info(&dev_priv->drm,
989 "Legacy memory limits: VRAM = %llu kB, FIFO = %llu kB, surface = %u kB\n",
990 (u64)dev_priv->vram_size / 1024,
991 (u64)dev_priv->fifo_mem_size / 1024,
992 dev_priv->memory_size / 1024);
993
994 drm_info(&dev_priv->drm,
995 "MOB limits: max mob size = %u kB, max mob pages = %u\n",
996 dev_priv->max_mob_size / 1024, dev_priv->max_mob_pages);
997
998 ret = vmw_dma_masks(dev_priv);
999 if (unlikely(ret != 0))
1000 goto out_err0;
1001
1002 dma_set_max_seg_size(dev_priv->drm.dev, U32_MAX);
1003
1004 if (dev_priv->capabilities & SVGA_CAP_GMR2) {
1005 drm_info(&dev_priv->drm,
1006 "Max GMR ids is %u\n",
1007 (unsigned)dev_priv->max_gmr_ids);
1008 drm_info(&dev_priv->drm,
1009 "Max number of GMR pages is %u\n",
1010 (unsigned)dev_priv->max_gmr_pages);
1011 }
1012 drm_info(&dev_priv->drm,
1013 "Maximum display memory size is %llu kiB\n",
1014 (uint64_t)dev_priv->max_primary_mem / 1024);
1015
1016 /* Need mmio memory to check for fifo pitchlock cap. */
1017 if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
1018 !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
1019 !vmw_fifo_have_pitchlock(dev_priv)) {
1020 ret = -ENOSYS;
1021 DRM_ERROR("Hardware has no pitchlock\n");
1022 goto out_err0;
1023 }
1024
1025 dev_priv->tdev = ttm_object_device_init(&vmw_prime_dmabuf_ops);
1026
1027 if (unlikely(dev_priv->tdev == NULL)) {
1028 drm_err(&dev_priv->drm,
1029 "Unable to initialize TTM object management.\n");
1030 ret = -ENOMEM;
1031 goto out_err0;
1032 }
1033
1034 if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
1035 ret = vmw_irq_install(dev_priv);
1036 if (ret != 0) {
1037 drm_err(&dev_priv->drm,
1038 "Failed installing irq: %d\n", ret);
1039 goto out_no_irq;
1040 }
1041 }
1042
1043 dev_priv->fman = vmw_fence_manager_init(dev_priv);
1044 if (unlikely(dev_priv->fman == NULL)) {
1045 ret = -ENOMEM;
1046 goto out_no_fman;
1047 }
1048
1049 ret = ttm_device_init(&dev_priv->bdev, &vmw_bo_driver,
1050 dev_priv->drm.dev,
1051 dev_priv->drm.anon_inode->i_mapping,
1052 dev_priv->drm.vma_offset_manager,
1053 dev_priv->map_mode == vmw_dma_alloc_coherent,
1054 false);
1055 if (unlikely(ret != 0)) {
1056 drm_err(&dev_priv->drm,
1057 "Failed initializing TTM buffer object driver.\n");
1058 goto out_no_bdev;
1059 }
1060
1061 /*
1062 * Enable VRAM, but initially don't use it until SVGA is enabled and
1063 * unhidden.
1064 */
1065
1066 ret = vmw_vram_manager_init(dev_priv);
1067 if (unlikely(ret != 0)) {
1068 drm_err(&dev_priv->drm,
1069 "Failed initializing memory manager for VRAM.\n");
1070 goto out_no_vram;
1071 }
1072
1073 ret = vmw_devcaps_create(dev_priv);
1074 if (unlikely(ret != 0)) {
1075 drm_err(&dev_priv->drm,
1076 "Failed initializing device caps.\n");
1077 goto out_no_vram;
1078 }
1079
1080 /*
1081 * "Guest Memory Regions" is an aperture like feature with
1082 * one slot per bo. There is an upper limit of the number of
1083 * slots as well as the bo size.
1084 */
1085 dev_priv->has_gmr = true;
1086 /* TODO: This is most likely not correct */
1087 if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) ||
1088 refuse_dma ||
1089 vmw_gmrid_man_init(dev_priv, VMW_PL_GMR) != 0) {
1090 drm_info(&dev_priv->drm,
1091 "No GMR memory available. "
1092 "Graphics memory resources are very limited.\n");
1093 dev_priv->has_gmr = false;
1094 }
1095
1096 if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS && !refuse_dma) {
1097 dev_priv->has_mob = true;
1098
1099 if (vmw_gmrid_man_init(dev_priv, VMW_PL_MOB) != 0) {
1100 drm_info(&dev_priv->drm,
1101 "No MOB memory available. "
1102 "3D will be disabled.\n");
1103 dev_priv->has_mob = false;
1104 }
1105 if (vmw_sys_man_init(dev_priv) != 0) {
1106 drm_info(&dev_priv->drm,
1107 "No MOB page table memory available. "
1108 "3D will be disabled.\n");
1109 dev_priv->has_mob = false;
1110 }
1111 }
1112
1113 if (dev_priv->has_mob && (dev_priv->capabilities & SVGA_CAP_DX)) {
1114 if (vmw_devcap_get(dev_priv, SVGA3D_DEVCAP_DXCONTEXT))
1115 dev_priv->sm_type = VMW_SM_4;
1116 }
1117
1118 /* SVGA_CAP2_DX2 (DefineGBSurface_v3) is needed for SM4_1 support */
1119 if (has_sm4_context(dev_priv) &&
1120 (dev_priv->capabilities2 & SVGA_CAP2_DX2)) {
1121 if (vmw_devcap_get(dev_priv, SVGA3D_DEVCAP_SM41))
1122 dev_priv->sm_type = VMW_SM_4_1;
1123 if (has_sm4_1_context(dev_priv) &&
1124 (dev_priv->capabilities2 & SVGA_CAP2_DX3)) {
1125 if (vmw_devcap_get(dev_priv, SVGA3D_DEVCAP_SM5)) {
1126 dev_priv->sm_type = VMW_SM_5;
1127 if (vmw_devcap_get(dev_priv, SVGA3D_DEVCAP_GL43))
1128 dev_priv->sm_type = VMW_SM_5_1X;
1129 }
1130 }
1131 }
1132
1133 ret = vmw_kms_init(dev_priv);
1134 if (unlikely(ret != 0))
1135 goto out_no_kms;
1136 vmw_overlay_init(dev_priv);
1137
1138 ret = vmw_request_device(dev_priv);
1139 if (ret)
1140 goto out_no_fifo;
1141
1142 vmw_print_sm_type(dev_priv);
1143 vmw_host_printf("vmwgfx: Module Version: %d.%d.%d (kernel: %s)",
1144 VMWGFX_DRIVER_MAJOR, VMWGFX_DRIVER_MINOR,
1145 VMWGFX_DRIVER_PATCHLEVEL, UTS_RELEASE);
1146 vmw_write_driver_id(dev_priv);
1147
1148 dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
1149 register_pm_notifier(&dev_priv->pm_nb);
1150
1151 return 0;
1152
1153out_no_fifo:
1154 vmw_overlay_close(dev_priv);
1155 vmw_kms_close(dev_priv);
1156out_no_kms:
1157 if (dev_priv->has_mob) {
1158 vmw_gmrid_man_fini(dev_priv, VMW_PL_MOB);
1159 vmw_sys_man_fini(dev_priv);
1160 }
1161 if (dev_priv->has_gmr)
1162 vmw_gmrid_man_fini(dev_priv, VMW_PL_GMR);
1163 vmw_devcaps_destroy(dev_priv);
1164 vmw_vram_manager_fini(dev_priv);
1165out_no_vram:
1166 ttm_device_fini(&dev_priv->bdev);
1167out_no_bdev:
1168 vmw_fence_manager_takedown(dev_priv->fman);
1169out_no_fman:
1170 if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
1171 vmw_irq_uninstall(&dev_priv->drm);
1172out_no_irq:
1173 ttm_object_device_release(&dev_priv->tdev);
1174out_err0:
1175 for (i = vmw_res_context; i < vmw_res_max; ++i)
1176 idr_destroy(&dev_priv->res_idr[i]);
1177
1178 if (dev_priv->ctx.staged_bindings)
1179 vmw_binding_state_free(dev_priv->ctx.staged_bindings);
1180out_no_pci_or_version:
1181 pci_release_regions(pdev);
1182 return ret;
1183}
1184
1185static void vmw_driver_unload(struct drm_device *dev)
1186{
1187 struct vmw_private *dev_priv = vmw_priv(dev);
1188 struct pci_dev *pdev = to_pci_dev(dev->dev);
1189 enum vmw_res_type i;
1190
1191 unregister_pm_notifier(&dev_priv->pm_nb);
1192
1193 vmw_sw_context_fini(dev_priv);
1194 vmw_fifo_resource_dec(dev_priv);
1195
1196 vmw_svga_disable(dev_priv);
1197
1198 vmw_kms_close(dev_priv);
1199 vmw_overlay_close(dev_priv);
1200
1201 if (dev_priv->has_gmr)
1202 vmw_gmrid_man_fini(dev_priv, VMW_PL_GMR);
1203
1204 vmw_release_device_early(dev_priv);
1205 if (dev_priv->has_mob) {
1206 vmw_gmrid_man_fini(dev_priv, VMW_PL_MOB);
1207 vmw_sys_man_fini(dev_priv);
1208 }
1209 vmw_devcaps_destroy(dev_priv);
1210 vmw_vram_manager_fini(dev_priv);
1211 ttm_device_fini(&dev_priv->bdev);
1212 vmw_release_device_late(dev_priv);
1213 vmw_fence_manager_takedown(dev_priv->fman);
1214 if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
1215 vmw_irq_uninstall(&dev_priv->drm);
1216
1217 ttm_object_device_release(&dev_priv->tdev);
1218
1219 for (i = vmw_res_context; i < vmw_res_max; ++i)
1220 idr_destroy(&dev_priv->res_idr[i]);
1221
1222 vmw_mksstat_remove_all(dev_priv);
1223
1224 pci_release_regions(pdev);
1225}
1226
1227static void vmw_postclose(struct drm_device *dev,
1228 struct drm_file *file_priv)
1229{
1230 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
1231
1232 ttm_object_file_release(&vmw_fp->tfile);
1233 kfree(vmw_fp);
1234}
1235
1236static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
1237{
1238 struct vmw_private *dev_priv = vmw_priv(dev);
1239 struct vmw_fpriv *vmw_fp;
1240 int ret = -ENOMEM;
1241
1242 vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
1243 if (unlikely(!vmw_fp))
1244 return ret;
1245
1246 vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev);
1247 if (unlikely(vmw_fp->tfile == NULL))
1248 goto out_no_tfile;
1249
1250 file_priv->driver_priv = vmw_fp;
1251
1252 return 0;
1253
1254out_no_tfile:
1255 kfree(vmw_fp);
1256 return ret;
1257}
1258
1259static long vmw_generic_ioctl(struct file *filp, unsigned int cmd,
1260 unsigned long arg,
1261 long (*ioctl_func)(struct file *, unsigned int,
1262 unsigned long))
1263{
1264 struct drm_file *file_priv = filp->private_data;
1265 struct drm_device *dev = file_priv->minor->dev;
1266 unsigned int nr = DRM_IOCTL_NR(cmd);
1267 unsigned int flags;
1268
1269 /*
1270 * Do extra checking on driver private ioctls.
1271 */
1272
1273 if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
1274 && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
1275 const struct drm_ioctl_desc *ioctl =
1276 &vmw_ioctls[nr - DRM_COMMAND_BASE];
1277
1278 if (nr == DRM_COMMAND_BASE + DRM_VMW_EXECBUF) {
1279 return ioctl_func(filp, cmd, arg);
1280 } else if (nr == DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT) {
1281 if (!drm_is_current_master(file_priv) &&
1282 !capable(CAP_SYS_ADMIN))
1283 return -EACCES;
1284 }
1285
1286 if (unlikely(ioctl->cmd != cmd))
1287 goto out_io_encoding;
1288
1289 flags = ioctl->flags;
1290 } else if (!drm_ioctl_flags(nr, &flags))
1291 return -EINVAL;
1292
1293 return ioctl_func(filp, cmd, arg);
1294
1295out_io_encoding:
1296 DRM_ERROR("Invalid command format, ioctl %d\n",
1297 nr - DRM_COMMAND_BASE);
1298
1299 return -EINVAL;
1300}
1301
1302static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
1303 unsigned long arg)
1304{
1305 return vmw_generic_ioctl(filp, cmd, arg, &drm_ioctl);
1306}
1307
1308#ifdef CONFIG_COMPAT
1309static long vmw_compat_ioctl(struct file *filp, unsigned int cmd,
1310 unsigned long arg)
1311{
1312 return vmw_generic_ioctl(filp, cmd, arg, &drm_compat_ioctl);
1313}
1314#endif
1315
1316static void vmw_master_set(struct drm_device *dev,
1317 struct drm_file *file_priv,
1318 bool from_open)
1319{
1320 /*
1321 * Inform a new master that the layout may have changed while
1322 * it was gone.
1323 */
1324 if (!from_open)
1325 drm_sysfs_hotplug_event(dev);
1326}
1327
1328static void vmw_master_drop(struct drm_device *dev,
1329 struct drm_file *file_priv)
1330{
1331 struct vmw_private *dev_priv = vmw_priv(dev);
1332
1333 vmw_kms_legacy_hotspot_clear(dev_priv);
1334}
1335
1336bool vmwgfx_supported(struct vmw_private *vmw)
1337{
1338#if defined(CONFIG_X86)
1339 return hypervisor_is_type(X86_HYPER_VMWARE);
1340#elif defined(CONFIG_ARM64)
1341 /*
1342 * On aarch64 only svga3 is supported
1343 */
1344 return vmw->pci_id == VMWGFX_PCI_ID_SVGA3;
1345#else
1346 drm_warn_once(&vmw->drm,
1347 "vmwgfx is running on an unknown architecture.");
1348 return false;
1349#endif
1350}
1351
1352/**
1353 * __vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1354 *
1355 * @dev_priv: Pointer to device private struct.
1356 * Needs the reservation sem to be held in non-exclusive mode.
1357 */
1358static void __vmw_svga_enable(struct vmw_private *dev_priv)
1359{
1360 struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM);
1361
1362 if (!ttm_resource_manager_used(man)) {
1363 vmw_write(dev_priv, SVGA_REG_ENABLE, SVGA_REG_ENABLE_ENABLE);
1364 ttm_resource_manager_set_used(man, true);
1365 }
1366}
1367
1368/**
1369 * vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1370 *
1371 * @dev_priv: Pointer to device private struct.
1372 */
1373void vmw_svga_enable(struct vmw_private *dev_priv)
1374{
1375 __vmw_svga_enable(dev_priv);
1376}
1377
1378/**
1379 * __vmw_svga_disable - Disable SVGA mode and use of VRAM.
1380 *
1381 * @dev_priv: Pointer to device private struct.
1382 * Needs the reservation sem to be held in exclusive mode.
1383 * Will not empty VRAM. VRAM must be emptied by caller.
1384 */
1385static void __vmw_svga_disable(struct vmw_private *dev_priv)
1386{
1387 struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM);
1388
1389 if (ttm_resource_manager_used(man)) {
1390 ttm_resource_manager_set_used(man, false);
1391 vmw_write(dev_priv, SVGA_REG_ENABLE,
1392 SVGA_REG_ENABLE_HIDE |
1393 SVGA_REG_ENABLE_ENABLE);
1394 }
1395}
1396
1397/**
1398 * vmw_svga_disable - Disable SVGA_MODE, and use of VRAM. Keep the fifo
1399 * running.
1400 *
1401 * @dev_priv: Pointer to device private struct.
1402 * Will empty VRAM.
1403 */
1404void vmw_svga_disable(struct vmw_private *dev_priv)
1405{
1406 struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM);
1407 /*
1408 * Disabling SVGA will turn off device modesetting capabilities, so
1409 * notify KMS about that so that it doesn't cache atomic state that
1410 * isn't valid anymore, for example crtcs turned on.
1411 * Strictly we'd want to do this under the SVGA lock (or an SVGA mutex),
1412 * but vmw_kms_lost_device() takes the reservation sem and thus we'll
1413 * end up with lock order reversal. Thus, a master may actually perform
1414 * a new modeset just after we call vmw_kms_lost_device() and race with
1415 * vmw_svga_disable(), but that should at worst cause atomic KMS state
1416 * to be inconsistent with the device, causing modesetting problems.
1417 *
1418 */
1419 vmw_kms_lost_device(&dev_priv->drm);
1420 if (ttm_resource_manager_used(man)) {
1421 if (ttm_resource_manager_evict_all(&dev_priv->bdev, man))
1422 DRM_ERROR("Failed evicting VRAM buffers.\n");
1423 ttm_resource_manager_set_used(man, false);
1424 vmw_write(dev_priv, SVGA_REG_ENABLE,
1425 SVGA_REG_ENABLE_HIDE |
1426 SVGA_REG_ENABLE_ENABLE);
1427 }
1428}
1429
1430static void vmw_remove(struct pci_dev *pdev)
1431{
1432 struct drm_device *dev = pci_get_drvdata(pdev);
1433
1434 drm_dev_unregister(dev);
1435 vmw_driver_unload(dev);
1436}
1437
1438static void vmw_debugfs_resource_managers_init(struct vmw_private *vmw)
1439{
1440 struct drm_minor *minor = vmw->drm.primary;
1441 struct dentry *root = minor->debugfs_root;
1442
1443 ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, TTM_PL_SYSTEM),
1444 root, "system_ttm");
1445 ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, TTM_PL_VRAM),
1446 root, "vram_ttm");
1447 ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_GMR),
1448 root, "gmr_ttm");
1449 ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_MOB),
1450 root, "mob_ttm");
1451 ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_SYSTEM),
1452 root, "system_mob_ttm");
1453}
1454
1455static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
1456 void *ptr)
1457{
1458 struct vmw_private *dev_priv =
1459 container_of(nb, struct vmw_private, pm_nb);
1460
1461 switch (val) {
1462 case PM_HIBERNATION_PREPARE:
1463 /*
1464 * Take the reservation sem in write mode, which will make sure
1465 * there are no other processes holding a buffer object
1466 * reservation, meaning we should be able to evict all buffer
1467 * objects if needed.
1468 * Once user-space processes have been frozen, we can release
1469 * the lock again.
1470 */
1471 dev_priv->suspend_locked = true;
1472 break;
1473 case PM_POST_HIBERNATION:
1474 case PM_POST_RESTORE:
1475 if (READ_ONCE(dev_priv->suspend_locked)) {
1476 dev_priv->suspend_locked = false;
1477 }
1478 break;
1479 default:
1480 break;
1481 }
1482 return 0;
1483}
1484
1485static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
1486{
1487 struct drm_device *dev = pci_get_drvdata(pdev);
1488 struct vmw_private *dev_priv = vmw_priv(dev);
1489
1490 if (dev_priv->refuse_hibernation)
1491 return -EBUSY;
1492
1493 pci_save_state(pdev);
1494 pci_disable_device(pdev);
1495 pci_set_power_state(pdev, PCI_D3hot);
1496 return 0;
1497}
1498
1499static int vmw_pci_resume(struct pci_dev *pdev)
1500{
1501 pci_set_power_state(pdev, PCI_D0);
1502 pci_restore_state(pdev);
1503 return pci_enable_device(pdev);
1504}
1505
1506static int vmw_pm_suspend(struct device *kdev)
1507{
1508 struct pci_dev *pdev = to_pci_dev(kdev);
1509 struct pm_message dummy;
1510
1511 dummy.event = 0;
1512
1513 return vmw_pci_suspend(pdev, dummy);
1514}
1515
1516static int vmw_pm_resume(struct device *kdev)
1517{
1518 struct pci_dev *pdev = to_pci_dev(kdev);
1519
1520 return vmw_pci_resume(pdev);
1521}
1522
1523static int vmw_pm_freeze(struct device *kdev)
1524{
1525 struct pci_dev *pdev = to_pci_dev(kdev);
1526 struct drm_device *dev = pci_get_drvdata(pdev);
1527 struct vmw_private *dev_priv = vmw_priv(dev);
1528 struct ttm_operation_ctx ctx = {
1529 .interruptible = false,
1530 .no_wait_gpu = false
1531 };
1532 int ret;
1533
1534 /*
1535 * No user-space processes should be running now.
1536 */
1537 ret = vmw_kms_suspend(&dev_priv->drm);
1538 if (ret) {
1539 DRM_ERROR("Failed to freeze modesetting.\n");
1540 return ret;
1541 }
1542
1543 vmw_execbuf_release_pinned_bo(dev_priv);
1544 vmw_resource_evict_all(dev_priv);
1545 vmw_release_device_early(dev_priv);
1546 while (ttm_device_swapout(&dev_priv->bdev, &ctx, GFP_KERNEL) > 0);
1547 vmw_fifo_resource_dec(dev_priv);
1548 if (atomic_read(&dev_priv->num_fifo_resources) != 0) {
1549 DRM_ERROR("Can't hibernate while 3D resources are active.\n");
1550 vmw_fifo_resource_inc(dev_priv);
1551 WARN_ON(vmw_request_device_late(dev_priv));
1552 dev_priv->suspend_locked = false;
1553 if (dev_priv->suspend_state)
1554 vmw_kms_resume(dev);
1555 return -EBUSY;
1556 }
1557
1558 vmw_fence_fifo_down(dev_priv->fman);
1559 __vmw_svga_disable(dev_priv);
1560
1561 vmw_release_device_late(dev_priv);
1562 return 0;
1563}
1564
1565static int vmw_pm_restore(struct device *kdev)
1566{
1567 struct pci_dev *pdev = to_pci_dev(kdev);
1568 struct drm_device *dev = pci_get_drvdata(pdev);
1569 struct vmw_private *dev_priv = vmw_priv(dev);
1570 int ret;
1571
1572 vmw_detect_version(dev_priv);
1573
1574 vmw_fifo_resource_inc(dev_priv);
1575
1576 ret = vmw_request_device(dev_priv);
1577 if (ret)
1578 return ret;
1579
1580 __vmw_svga_enable(dev_priv);
1581
1582 vmw_fence_fifo_up(dev_priv->fman);
1583 dev_priv->suspend_locked = false;
1584 if (dev_priv->suspend_state)
1585 vmw_kms_resume(&dev_priv->drm);
1586
1587 return 0;
1588}
1589
1590static const struct dev_pm_ops vmw_pm_ops = {
1591 .freeze = vmw_pm_freeze,
1592 .thaw = vmw_pm_restore,
1593 .restore = vmw_pm_restore,
1594 .suspend = vmw_pm_suspend,
1595 .resume = vmw_pm_resume,
1596};
1597
1598static const struct file_operations vmwgfx_driver_fops = {
1599 .owner = THIS_MODULE,
1600 .open = drm_open,
1601 .release = drm_release,
1602 .unlocked_ioctl = vmw_unlocked_ioctl,
1603 .mmap = drm_gem_mmap,
1604 .poll = drm_poll,
1605 .read = drm_read,
1606#if defined(CONFIG_COMPAT)
1607 .compat_ioctl = vmw_compat_ioctl,
1608#endif
1609 .llseek = noop_llseek,
1610};
1611
1612static const struct drm_driver driver = {
1613 .driver_features =
1614 DRIVER_MODESET | DRIVER_RENDER | DRIVER_ATOMIC | DRIVER_GEM | DRIVER_CURSOR_HOTSPOT,
1615 .ioctls = vmw_ioctls,
1616 .num_ioctls = ARRAY_SIZE(vmw_ioctls),
1617 .master_set = vmw_master_set,
1618 .master_drop = vmw_master_drop,
1619 .open = vmw_driver_open,
1620 .postclose = vmw_postclose,
1621
1622 .dumb_create = vmw_dumb_create,
1623 .dumb_map_offset = drm_gem_ttm_dumb_map_offset,
1624
1625 .prime_fd_to_handle = vmw_prime_fd_to_handle,
1626 .prime_handle_to_fd = vmw_prime_handle_to_fd,
1627
1628 .fops = &vmwgfx_driver_fops,
1629 .name = VMWGFX_DRIVER_NAME,
1630 .desc = VMWGFX_DRIVER_DESC,
1631 .date = VMWGFX_DRIVER_DATE,
1632 .major = VMWGFX_DRIVER_MAJOR,
1633 .minor = VMWGFX_DRIVER_MINOR,
1634 .patchlevel = VMWGFX_DRIVER_PATCHLEVEL
1635};
1636
1637static struct pci_driver vmw_pci_driver = {
1638 .name = VMWGFX_DRIVER_NAME,
1639 .id_table = vmw_pci_id_list,
1640 .probe = vmw_probe,
1641 .remove = vmw_remove,
1642 .driver = {
1643 .pm = &vmw_pm_ops
1644 }
1645};
1646
1647static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1648{
1649 struct vmw_private *vmw;
1650 int ret;
1651
1652 ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &driver);
1653 if (ret)
1654 goto out_error;
1655
1656 ret = pcim_enable_device(pdev);
1657 if (ret)
1658 goto out_error;
1659
1660 vmw = devm_drm_dev_alloc(&pdev->dev, &driver,
1661 struct vmw_private, drm);
1662 if (IS_ERR(vmw)) {
1663 ret = PTR_ERR(vmw);
1664 goto out_error;
1665 }
1666
1667 pci_set_drvdata(pdev, &vmw->drm);
1668
1669 ret = vmw_driver_load(vmw, ent->device);
1670 if (ret)
1671 goto out_error;
1672
1673 ret = drm_dev_register(&vmw->drm, 0);
1674 if (ret)
1675 goto out_unload;
1676
1677 vmw_fifo_resource_inc(vmw);
1678 vmw_svga_enable(vmw);
1679 drm_fbdev_generic_setup(&vmw->drm, 0);
1680
1681 vmw_debugfs_gem_init(vmw);
1682 vmw_debugfs_resource_managers_init(vmw);
1683
1684 return 0;
1685out_unload:
1686 vmw_driver_unload(&vmw->drm);
1687out_error:
1688 return ret;
1689}
1690
1691drm_module_pci_driver(vmw_pci_driver);
1692
1693MODULE_AUTHOR("VMware Inc. and others");
1694MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
1695MODULE_LICENSE("GPL and additional rights");
1696MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "."
1697 __stringify(VMWGFX_DRIVER_MINOR) "."
1698 __stringify(VMWGFX_DRIVER_PATCHLEVEL) "."
1699 "0");