1 // SPDX-License-Identifier: GPL-2.0 OR MIT
2 /**************************************************************************
3  *
4  * Copyright 2009-2016 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 #include <linux/console.h>
29 #include <linux/dma-mapping.h>
30 #include <linux/module.h>
31 #include <linux/pci.h>
32 #include <linux/cc_platform.h>
33 
34 #include <drm/drm_aperture.h>
35 #include <drm/drm_drv.h>
36 #include <drm/drm_ioctl.h>
37 #include <drm/drm_sysfs.h>
38 #include <drm/ttm/ttm_bo_driver.h>
39 #include <drm/ttm/ttm_range_manager.h>
40 #include <drm/ttm/ttm_placement.h>
41 #include <generated/utsrelease.h>
42 
43 #include "ttm_object.h"
44 #include "vmwgfx_binding.h"
45 #include "vmwgfx_devcaps.h"
46 #include "vmwgfx_drv.h"
47 #include "vmwgfx_mksstat.h"
48 
49 #define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
50 
51 #define VMW_MIN_INITIAL_WIDTH 800
52 #define VMW_MIN_INITIAL_HEIGHT 600
53 
54 #define VMWGFX_VALIDATION_MEM_GRAN (16*PAGE_SIZE)
55 
56 
57 /*
58  * Fully encoded drm commands. Might move to vmw_drm.h
59  */
60 
61 #define DRM_IOCTL_VMW_GET_PARAM					\
62 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM,		\
63 		 struct drm_vmw_getparam_arg)
64 #define DRM_IOCTL_VMW_ALLOC_DMABUF				\
65 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF,	\
66 		union drm_vmw_alloc_dmabuf_arg)
67 #define DRM_IOCTL_VMW_UNREF_DMABUF				\
68 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF,	\
69 		struct drm_vmw_unref_dmabuf_arg)
70 #define DRM_IOCTL_VMW_CURSOR_BYPASS				\
71 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS,	\
72 		 struct drm_vmw_cursor_bypass_arg)
73 
74 #define DRM_IOCTL_VMW_CONTROL_STREAM				\
75 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM,	\
76 		 struct drm_vmw_control_stream_arg)
77 #define DRM_IOCTL_VMW_CLAIM_STREAM				\
78 	DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM,	\
79 		 struct drm_vmw_stream_arg)
80 #define DRM_IOCTL_VMW_UNREF_STREAM				\
81 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM,	\
82 		 struct drm_vmw_stream_arg)
83 
84 #define DRM_IOCTL_VMW_CREATE_CONTEXT				\
85 	DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT,	\
86 		struct drm_vmw_context_arg)
87 #define DRM_IOCTL_VMW_UNREF_CONTEXT				\
88 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT,	\
89 		struct drm_vmw_context_arg)
90 #define DRM_IOCTL_VMW_CREATE_SURFACE				\
91 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE,	\
92 		 union drm_vmw_surface_create_arg)
93 #define DRM_IOCTL_VMW_UNREF_SURFACE				\
94 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE,	\
95 		 struct drm_vmw_surface_arg)
96 #define DRM_IOCTL_VMW_REF_SURFACE				\
97 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE,	\
98 		 union drm_vmw_surface_reference_arg)
99 #define DRM_IOCTL_VMW_EXECBUF					\
100 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF,		\
101 		struct drm_vmw_execbuf_arg)
102 #define DRM_IOCTL_VMW_GET_3D_CAP				\
103 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_GET_3D_CAP,		\
104 		 struct drm_vmw_get_3d_cap_arg)
105 #define DRM_IOCTL_VMW_FENCE_WAIT				\
106 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT,		\
107 		 struct drm_vmw_fence_wait_arg)
108 #define DRM_IOCTL_VMW_FENCE_SIGNALED				\
109 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_SIGNALED,	\
110 		 struct drm_vmw_fence_signaled_arg)
111 #define DRM_IOCTL_VMW_FENCE_UNREF				\
112 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_UNREF,		\
113 		 struct drm_vmw_fence_arg)
114 #define DRM_IOCTL_VMW_FENCE_EVENT				\
115 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_EVENT,		\
116 		 struct drm_vmw_fence_event_arg)
117 #define DRM_IOCTL_VMW_PRESENT					\
118 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT,		\
119 		 struct drm_vmw_present_arg)
120 #define DRM_IOCTL_VMW_PRESENT_READBACK				\
121 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT_READBACK,	\
122 		 struct drm_vmw_present_readback_arg)
123 #define DRM_IOCTL_VMW_UPDATE_LAYOUT				\
124 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT,	\
125 		 struct drm_vmw_update_layout_arg)
126 #define DRM_IOCTL_VMW_CREATE_SHADER				\
127 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SHADER,	\
128 		 struct drm_vmw_shader_create_arg)
129 #define DRM_IOCTL_VMW_UNREF_SHADER				\
130 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SHADER,	\
131 		 struct drm_vmw_shader_arg)
132 #define DRM_IOCTL_VMW_GB_SURFACE_CREATE				\
133 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE,	\
134 		 union drm_vmw_gb_surface_create_arg)
135 #define DRM_IOCTL_VMW_GB_SURFACE_REF				\
136 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF,	\
137 		 union drm_vmw_gb_surface_reference_arg)
138 #define DRM_IOCTL_VMW_SYNCCPU					\
139 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_SYNCCPU,		\
140 		 struct drm_vmw_synccpu_arg)
141 #define DRM_IOCTL_VMW_CREATE_EXTENDED_CONTEXT			\
142 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_EXTENDED_CONTEXT,	\
143 		struct drm_vmw_context_arg)
144 #define DRM_IOCTL_VMW_GB_SURFACE_CREATE_EXT				\
145 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE_EXT,	\
146 		union drm_vmw_gb_surface_create_ext_arg)
147 #define DRM_IOCTL_VMW_GB_SURFACE_REF_EXT				\
148 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF_EXT,		\
149 		union drm_vmw_gb_surface_reference_ext_arg)
150 #define DRM_IOCTL_VMW_MSG						\
151 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_MSG,			\
152 		struct drm_vmw_msg_arg)
153 #define DRM_IOCTL_VMW_MKSSTAT_RESET				\
154 	DRM_IO(DRM_COMMAND_BASE + DRM_VMW_MKSSTAT_RESET)
155 #define DRM_IOCTL_VMW_MKSSTAT_ADD				\
156 	DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_MKSSTAT_ADD,	\
157 		struct drm_vmw_mksstat_add_arg)
158 #define DRM_IOCTL_VMW_MKSSTAT_REMOVE				\
159 	DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_MKSSTAT_REMOVE,	\
160 		struct drm_vmw_mksstat_remove_arg)
161 
162 /*
163  * Ioctl definitions.
164  */
165 
166 static const struct drm_ioctl_desc vmw_ioctls[] = {
167 	DRM_IOCTL_DEF_DRV(VMW_GET_PARAM, vmw_getparam_ioctl,
168 			  DRM_RENDER_ALLOW),
169 	DRM_IOCTL_DEF_DRV(VMW_ALLOC_DMABUF, vmw_bo_alloc_ioctl,
170 			  DRM_RENDER_ALLOW),
171 	DRM_IOCTL_DEF_DRV(VMW_UNREF_DMABUF, vmw_bo_unref_ioctl,
172 			  DRM_RENDER_ALLOW),
173 	DRM_IOCTL_DEF_DRV(VMW_CURSOR_BYPASS,
174 			  vmw_kms_cursor_bypass_ioctl,
175 			  DRM_MASTER),
176 
177 	DRM_IOCTL_DEF_DRV(VMW_CONTROL_STREAM, vmw_overlay_ioctl,
178 			  DRM_MASTER),
179 	DRM_IOCTL_DEF_DRV(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
180 			  DRM_MASTER),
181 	DRM_IOCTL_DEF_DRV(VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
182 			  DRM_MASTER),
183 
184 	DRM_IOCTL_DEF_DRV(VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
185 			  DRM_RENDER_ALLOW),
186 	DRM_IOCTL_DEF_DRV(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
187 			  DRM_RENDER_ALLOW),
188 	DRM_IOCTL_DEF_DRV(VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
189 			  DRM_RENDER_ALLOW),
190 	DRM_IOCTL_DEF_DRV(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
191 			  DRM_RENDER_ALLOW),
192 	DRM_IOCTL_DEF_DRV(VMW_REF_SURFACE, vmw_surface_reference_ioctl,
193 			  DRM_RENDER_ALLOW),
194 	DRM_IOCTL_DEF_DRV(VMW_EXECBUF, vmw_execbuf_ioctl,
195 			  DRM_RENDER_ALLOW),
196 	DRM_IOCTL_DEF_DRV(VMW_FENCE_WAIT, vmw_fence_obj_wait_ioctl,
197 			  DRM_RENDER_ALLOW),
198 	DRM_IOCTL_DEF_DRV(VMW_FENCE_SIGNALED,
199 			  vmw_fence_obj_signaled_ioctl,
200 			  DRM_RENDER_ALLOW),
201 	DRM_IOCTL_DEF_DRV(VMW_FENCE_UNREF, vmw_fence_obj_unref_ioctl,
202 			  DRM_RENDER_ALLOW),
203 	DRM_IOCTL_DEF_DRV(VMW_FENCE_EVENT, vmw_fence_event_ioctl,
204 			  DRM_RENDER_ALLOW),
205 	DRM_IOCTL_DEF_DRV(VMW_GET_3D_CAP, vmw_get_cap_3d_ioctl,
206 			  DRM_RENDER_ALLOW),
207 
208 	/* these allow direct access to the framebuffers mark as master only */
209 	DRM_IOCTL_DEF_DRV(VMW_PRESENT, vmw_present_ioctl,
210 			  DRM_MASTER | DRM_AUTH),
211 	DRM_IOCTL_DEF_DRV(VMW_PRESENT_READBACK,
212 			  vmw_present_readback_ioctl,
213 			  DRM_MASTER | DRM_AUTH),
214 	/*
215 	 * The permissions of the below ioctl are overridden in
216 	 * vmw_generic_ioctl(). We require either
217 	 * DRM_MASTER or capable(CAP_SYS_ADMIN).
218 	 */
219 	DRM_IOCTL_DEF_DRV(VMW_UPDATE_LAYOUT,
220 			  vmw_kms_update_layout_ioctl,
221 			  DRM_RENDER_ALLOW),
222 	DRM_IOCTL_DEF_DRV(VMW_CREATE_SHADER,
223 			  vmw_shader_define_ioctl,
224 			  DRM_RENDER_ALLOW),
225 	DRM_IOCTL_DEF_DRV(VMW_UNREF_SHADER,
226 			  vmw_shader_destroy_ioctl,
227 			  DRM_RENDER_ALLOW),
228 	DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_CREATE,
229 			  vmw_gb_surface_define_ioctl,
230 			  DRM_RENDER_ALLOW),
231 	DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_REF,
232 			  vmw_gb_surface_reference_ioctl,
233 			  DRM_RENDER_ALLOW),
234 	DRM_IOCTL_DEF_DRV(VMW_SYNCCPU,
235 			  vmw_user_bo_synccpu_ioctl,
236 			  DRM_RENDER_ALLOW),
237 	DRM_IOCTL_DEF_DRV(VMW_CREATE_EXTENDED_CONTEXT,
238 			  vmw_extended_context_define_ioctl,
239 			  DRM_RENDER_ALLOW),
240 	DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_CREATE_EXT,
241 			  vmw_gb_surface_define_ext_ioctl,
242 			  DRM_RENDER_ALLOW),
243 	DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_REF_EXT,
244 			  vmw_gb_surface_reference_ext_ioctl,
245 			  DRM_RENDER_ALLOW),
246 	DRM_IOCTL_DEF_DRV(VMW_MSG,
247 			  vmw_msg_ioctl,
248 			  DRM_RENDER_ALLOW),
249 	DRM_IOCTL_DEF_DRV(VMW_MKSSTAT_RESET,
250 			  vmw_mksstat_reset_ioctl,
251 			  DRM_RENDER_ALLOW),
252 	DRM_IOCTL_DEF_DRV(VMW_MKSSTAT_ADD,
253 			  vmw_mksstat_add_ioctl,
254 			  DRM_RENDER_ALLOW),
255 	DRM_IOCTL_DEF_DRV(VMW_MKSSTAT_REMOVE,
256 			  vmw_mksstat_remove_ioctl,
257 			  DRM_RENDER_ALLOW),
258 };
259 
260 static const struct pci_device_id vmw_pci_id_list[] = {
261 	{ PCI_DEVICE(0x15ad, VMWGFX_PCI_ID_SVGA2) },
262 	{ PCI_DEVICE(0x15ad, VMWGFX_PCI_ID_SVGA3) },
263 	{ }
264 };
265 MODULE_DEVICE_TABLE(pci, vmw_pci_id_list);
266 
267 static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON);
268 static int vmw_restrict_iommu;
269 static int vmw_force_coherent;
270 static int vmw_restrict_dma_mask;
271 static int vmw_assume_16bpp;
272 
273 static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
274 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
275 			      void *ptr);
276 
277 MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev");
278 module_param_named(enable_fbdev, enable_fbdev, int, 0600);
279 MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages");
280 module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600);
281 MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages");
282 module_param_named(force_coherent, vmw_force_coherent, int, 0600);
283 MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU");
284 module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600);
285 MODULE_PARM_DESC(assume_16bpp, "Assume 16-bpp when filtering modes");
286 module_param_named(assume_16bpp, vmw_assume_16bpp, int, 0600);
287 
288 
289 struct bitmap_name {
290 	uint32 value;
291 	const char *name;
292 };
293 
294 static const struct bitmap_name cap1_names[] = {
295 	{ SVGA_CAP_RECT_COPY, "rect copy" },
296 	{ SVGA_CAP_CURSOR, "cursor" },
297 	{ SVGA_CAP_CURSOR_BYPASS, "cursor bypass" },
298 	{ SVGA_CAP_CURSOR_BYPASS_2, "cursor bypass 2" },
299 	{ SVGA_CAP_8BIT_EMULATION, "8bit emulation" },
300 	{ SVGA_CAP_ALPHA_CURSOR, "alpha cursor" },
301 	{ SVGA_CAP_3D, "3D" },
302 	{ SVGA_CAP_EXTENDED_FIFO, "extended fifo" },
303 	{ SVGA_CAP_MULTIMON, "multimon" },
304 	{ SVGA_CAP_PITCHLOCK, "pitchlock" },
305 	{ SVGA_CAP_IRQMASK, "irq mask" },
306 	{ SVGA_CAP_DISPLAY_TOPOLOGY, "display topology" },
307 	{ SVGA_CAP_GMR, "gmr" },
308 	{ SVGA_CAP_TRACES, "traces" },
309 	{ SVGA_CAP_GMR2, "gmr2" },
310 	{ SVGA_CAP_SCREEN_OBJECT_2, "screen object 2" },
311 	{ SVGA_CAP_COMMAND_BUFFERS, "command buffers" },
312 	{ SVGA_CAP_CMD_BUFFERS_2, "command buffers 2" },
313 	{ SVGA_CAP_GBOBJECTS, "gbobject" },
314 	{ SVGA_CAP_DX, "dx" },
315 	{ SVGA_CAP_HP_CMD_QUEUE, "hp cmd queue" },
316 	{ SVGA_CAP_NO_BB_RESTRICTION, "no bb restriction" },
317 	{ SVGA_CAP_CAP2_REGISTER, "cap2 register" },
318 };
319 
320 
321 static const struct bitmap_name cap2_names[] = {
322 	{ SVGA_CAP2_GROW_OTABLE, "grow otable" },
323 	{ SVGA_CAP2_INTRA_SURFACE_COPY, "intra surface copy" },
324 	{ SVGA_CAP2_DX2, "dx2" },
325 	{ SVGA_CAP2_GB_MEMSIZE_2, "gb memsize 2" },
326 	{ SVGA_CAP2_SCREENDMA_REG, "screendma reg" },
327 	{ SVGA_CAP2_OTABLE_PTDEPTH_2, "otable ptdepth2" },
328 	{ SVGA_CAP2_NON_MS_TO_MS_STRETCHBLT, "non ms to ms stretchblt" },
329 	{ SVGA_CAP2_CURSOR_MOB, "cursor mob" },
330 	{ SVGA_CAP2_MSHINT, "mshint" },
331 	{ SVGA_CAP2_CB_MAX_SIZE_4MB, "cb max size 4mb" },
332 	{ SVGA_CAP2_DX3, "dx3" },
333 	{ SVGA_CAP2_FRAME_TYPE, "frame type" },
334 	{ SVGA_CAP2_COTABLE_COPY, "cotable copy" },
335 	{ SVGA_CAP2_TRACE_FULL_FB, "trace full fb" },
336 	{ SVGA_CAP2_EXTRA_REGS, "extra regs" },
337 	{ SVGA_CAP2_LO_STAGING, "lo staging" },
338 };
339 
340 static void vmw_print_bitmap(struct drm_device *drm,
341 			     const char *prefix, uint32_t bitmap,
342 			     const struct bitmap_name *bnames,
343 			     uint32_t num_names)
344 {
345 	char buf[512];
346 	uint32_t i;
347 	uint32_t offset = 0;
348 	for (i = 0; i < num_names; ++i) {
349 		if ((bitmap & bnames[i].value) != 0) {
350 			offset += snprintf(buf + offset,
351 					   ARRAY_SIZE(buf) - offset,
352 					   "%s, ", bnames[i].name);
353 			bitmap &= ~bnames[i].value;
354 		}
355 	}
356 
357 	drm_info(drm, "%s: %s\n", prefix, buf);
358 	if (bitmap != 0)
359 		drm_dbg(drm, "%s: unknown enums: %x\n", prefix, bitmap);
360 }
361 
362 
363 static void vmw_print_sm_type(struct vmw_private *dev_priv)
364 {
365 	static const char *names[] = {
366 		[VMW_SM_LEGACY] = "Legacy",
367 		[VMW_SM_4] = "SM4",
368 		[VMW_SM_4_1] = "SM4_1",
369 		[VMW_SM_5] = "SM_5",
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  */
390 static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv)
391 {
392 	int ret;
393 	struct vmw_buffer_object *vbo;
394 	struct ttm_bo_kmap_obj map;
395 	volatile SVGA3dQueryResult *result;
396 	bool dummy;
397 
398 	/*
399 	 * Create the vbo as pinned, so that a tryreserve will
400 	 * immediately succeed. This is because we're the only
401 	 * user of the bo currently.
402 	 */
403 	vbo = kzalloc(sizeof(*vbo), GFP_KERNEL);
404 	if (!vbo)
405 		return -ENOMEM;
406 
407 	ret = vmw_bo_init(dev_priv, vbo, PAGE_SIZE,
408 			  &vmw_sys_placement, false, true,
409 			  &vmw_bo_bo_free);
410 	if (unlikely(ret != 0))
411 		return ret;
412 
413 	ret = ttm_bo_reserve(&vbo->base, false, true, NULL);
414 	BUG_ON(ret != 0);
415 	vmw_bo_pin_reserved(vbo, true);
416 
417 	ret = ttm_bo_kmap(&vbo->base, 0, 1, &map);
418 	if (likely(ret == 0)) {
419 		result = ttm_kmap_obj_virtual(&map, &dummy);
420 		result->totalSize = sizeof(*result);
421 		result->state = SVGA3D_QUERYSTATE_PENDING;
422 		result->result32 = 0xff;
423 		ttm_bo_kunmap(&map);
424 	}
425 	vmw_bo_pin_reserved(vbo, false);
426 	ttm_bo_unreserve(&vbo->base);
427 
428 	if (unlikely(ret != 0)) {
429 		DRM_ERROR("Dummy query buffer map failed.\n");
430 		vmw_bo_unreference(&vbo);
431 	} else
432 		dev_priv->dummy_query_bo = vbo;
433 
434 	return ret;
435 }
436 
437 static int vmw_device_init(struct vmw_private *dev_priv)
438 {
439 	bool uses_fb_traces = false;
440 
441 	dev_priv->enable_state = vmw_read(dev_priv, SVGA_REG_ENABLE);
442 	dev_priv->config_done_state = vmw_read(dev_priv, SVGA_REG_CONFIG_DONE);
443 	dev_priv->traces_state = vmw_read(dev_priv, SVGA_REG_TRACES);
444 
445 	vmw_write(dev_priv, SVGA_REG_ENABLE, SVGA_REG_ENABLE_ENABLE |
446 		  SVGA_REG_ENABLE_HIDE);
447 
448 	uses_fb_traces = !vmw_cmd_supported(dev_priv) &&
449 			 (dev_priv->capabilities & SVGA_CAP_TRACES) != 0;
450 
451 	vmw_write(dev_priv, SVGA_REG_TRACES, uses_fb_traces);
452 	dev_priv->fifo = vmw_fifo_create(dev_priv);
453 	if (IS_ERR(dev_priv->fifo)) {
454 		int err = PTR_ERR(dev_priv->fifo);
455 		dev_priv->fifo = NULL;
456 		return err;
457 	} else if (!dev_priv->fifo) {
458 		vmw_write(dev_priv, SVGA_REG_CONFIG_DONE, 1);
459 	}
460 
461 	dev_priv->last_read_seqno = vmw_fence_read(dev_priv);
462 	atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
463 	return 0;
464 }
465 
466 static void vmw_device_fini(struct vmw_private *vmw)
467 {
468 	/*
469 	 * Legacy sync
470 	 */
471 	vmw_write(vmw, SVGA_REG_SYNC, SVGA_SYNC_GENERIC);
472 	while (vmw_read(vmw, SVGA_REG_BUSY) != 0)
473 		;
474 
475 	vmw->last_read_seqno = vmw_fence_read(vmw);
476 
477 	vmw_write(vmw, SVGA_REG_CONFIG_DONE,
478 		  vmw->config_done_state);
479 	vmw_write(vmw, SVGA_REG_ENABLE,
480 		  vmw->enable_state);
481 	vmw_write(vmw, SVGA_REG_TRACES,
482 		  vmw->traces_state);
483 
484 	vmw_fifo_destroy(vmw);
485 }
486 
487 /**
488  * vmw_request_device_late - Perform late device setup
489  *
490  * @dev_priv: Pointer to device private.
491  *
492  * This function performs setup of otables and enables large command
493  * buffer submission. These tasks are split out to a separate function
494  * because it reverts vmw_release_device_early and is intended to be used
495  * by an error path in the hibernation code.
496  */
497 static int vmw_request_device_late(struct vmw_private *dev_priv)
498 {
499 	int ret;
500 
501 	if (dev_priv->has_mob) {
502 		ret = vmw_otables_setup(dev_priv);
503 		if (unlikely(ret != 0)) {
504 			DRM_ERROR("Unable to initialize "
505 				  "guest Memory OBjects.\n");
506 			return ret;
507 		}
508 	}
509 
510 	if (dev_priv->cman) {
511 		ret = vmw_cmdbuf_set_pool_size(dev_priv->cman, 256*4096);
512 		if (ret) {
513 			struct vmw_cmdbuf_man *man = dev_priv->cman;
514 
515 			dev_priv->cman = NULL;
516 			vmw_cmdbuf_man_destroy(man);
517 		}
518 	}
519 
520 	return 0;
521 }
522 
523 static int vmw_request_device(struct vmw_private *dev_priv)
524 {
525 	int ret;
526 
527 	ret = vmw_device_init(dev_priv);
528 	if (unlikely(ret != 0)) {
529 		DRM_ERROR("Unable to initialize the device.\n");
530 		return ret;
531 	}
532 	vmw_fence_fifo_up(dev_priv->fman);
533 	dev_priv->cman = vmw_cmdbuf_man_create(dev_priv);
534 	if (IS_ERR(dev_priv->cman)) {
535 		dev_priv->cman = NULL;
536 		dev_priv->sm_type = VMW_SM_LEGACY;
537 	}
538 
539 	ret = vmw_request_device_late(dev_priv);
540 	if (ret)
541 		goto out_no_mob;
542 
543 	ret = vmw_dummy_query_bo_create(dev_priv);
544 	if (unlikely(ret != 0))
545 		goto out_no_query_bo;
546 
547 	return 0;
548 
549 out_no_query_bo:
550 	if (dev_priv->cman)
551 		vmw_cmdbuf_remove_pool(dev_priv->cman);
552 	if (dev_priv->has_mob) {
553 		struct ttm_resource_manager *man;
554 
555 		man = ttm_manager_type(&dev_priv->bdev, VMW_PL_MOB);
556 		ttm_resource_manager_evict_all(&dev_priv->bdev, man);
557 		vmw_otables_takedown(dev_priv);
558 	}
559 	if (dev_priv->cman)
560 		vmw_cmdbuf_man_destroy(dev_priv->cman);
561 out_no_mob:
562 	vmw_fence_fifo_down(dev_priv->fman);
563 	vmw_device_fini(dev_priv);
564 	return ret;
565 }
566 
567 /**
568  * vmw_release_device_early - Early part of fifo takedown.
569  *
570  * @dev_priv: Pointer to device private struct.
571  *
572  * This is the first part of command submission takedown, to be called before
573  * buffer management is taken down.
574  */
575 static void vmw_release_device_early(struct vmw_private *dev_priv)
576 {
577 	/*
578 	 * Previous destructions should've released
579 	 * the pinned bo.
580 	 */
581 
582 	BUG_ON(dev_priv->pinned_bo != NULL);
583 
584 	vmw_bo_unreference(&dev_priv->dummy_query_bo);
585 	if (dev_priv->cman)
586 		vmw_cmdbuf_remove_pool(dev_priv->cman);
587 
588 	if (dev_priv->has_mob) {
589 		struct ttm_resource_manager *man;
590 
591 		man = ttm_manager_type(&dev_priv->bdev, VMW_PL_MOB);
592 		ttm_resource_manager_evict_all(&dev_priv->bdev, man);
593 		vmw_otables_takedown(dev_priv);
594 	}
595 }
596 
597 /**
598  * vmw_release_device_late - Late part of fifo takedown.
599  *
600  * @dev_priv: Pointer to device private struct.
601  *
602  * This is the last part of the command submission takedown, to be called when
603  * command submission is no longer needed. It may wait on pending fences.
604  */
605 static void vmw_release_device_late(struct vmw_private *dev_priv)
606 {
607 	vmw_fence_fifo_down(dev_priv->fman);
608 	if (dev_priv->cman)
609 		vmw_cmdbuf_man_destroy(dev_priv->cman);
610 
611 	vmw_device_fini(dev_priv);
612 }
613 
614 /*
615  * Sets the initial_[width|height] fields on the given vmw_private.
616  *
617  * It does so by reading SVGA_REG_[WIDTH|HEIGHT] regs and then
618  * clamping the value to fb_max_[width|height] fields and the
619  * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
620  * If the values appear to be invalid, set them to
621  * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
622  */
623 static void vmw_get_initial_size(struct vmw_private *dev_priv)
624 {
625 	uint32_t width;
626 	uint32_t height;
627 
628 	width = vmw_read(dev_priv, SVGA_REG_WIDTH);
629 	height = vmw_read(dev_priv, SVGA_REG_HEIGHT);
630 
631 	width = max_t(uint32_t, width, VMW_MIN_INITIAL_WIDTH);
632 	height = max_t(uint32_t, height, VMW_MIN_INITIAL_HEIGHT);
633 
634 	if (width > dev_priv->fb_max_width ||
635 	    height > dev_priv->fb_max_height) {
636 
637 		/*
638 		 * This is a host error and shouldn't occur.
639 		 */
640 
641 		width = VMW_MIN_INITIAL_WIDTH;
642 		height = VMW_MIN_INITIAL_HEIGHT;
643 	}
644 
645 	dev_priv->initial_width = width;
646 	dev_priv->initial_height = height;
647 }
648 
649 /**
650  * vmw_dma_select_mode - Determine how DMA mappings should be set up for this
651  * system.
652  *
653  * @dev_priv: Pointer to a struct vmw_private
654  *
655  * This functions tries to determine what actions need to be taken by the
656  * driver to make system pages visible to the device.
657  * If this function decides that DMA is not possible, it returns -EINVAL.
658  * The driver may then try to disable features of the device that require
659  * DMA.
660  */
661 static int vmw_dma_select_mode(struct vmw_private *dev_priv)
662 {
663 	static const char *names[vmw_dma_map_max] = {
664 		[vmw_dma_alloc_coherent] = "Using coherent TTM pages.",
665 		[vmw_dma_map_populate] = "Caching DMA mappings.",
666 		[vmw_dma_map_bind] = "Giving up DMA mappings early."};
667 
668 	/* TTM currently doesn't fully support SEV encryption. */
669 	if (cc_platform_has(CC_ATTR_MEM_ENCRYPT))
670 		return -EINVAL;
671 
672 	if (vmw_force_coherent)
673 		dev_priv->map_mode = vmw_dma_alloc_coherent;
674 	else if (vmw_restrict_iommu)
675 		dev_priv->map_mode = vmw_dma_map_bind;
676 	else
677 		dev_priv->map_mode = vmw_dma_map_populate;
678 
679 	drm_info(&dev_priv->drm,
680 		 "DMA map mode: %s\n", names[dev_priv->map_mode]);
681 	return 0;
682 }
683 
684 /**
685  * vmw_dma_masks - set required page- and dma masks
686  *
687  * @dev_priv: Pointer to struct drm-device
688  *
689  * With 32-bit we can only handle 32 bit PFNs. Optionally set that
690  * restriction also for 64-bit systems.
691  */
692 static int vmw_dma_masks(struct vmw_private *dev_priv)
693 {
694 	struct drm_device *dev = &dev_priv->drm;
695 	int ret = 0;
696 
697 	ret = dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64));
698 	if (sizeof(unsigned long) == 4 || vmw_restrict_dma_mask) {
699 		drm_info(&dev_priv->drm,
700 			 "Restricting DMA addresses to 44 bits.\n");
701 		return dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(44));
702 	}
703 
704 	return ret;
705 }
706 
707 static int vmw_vram_manager_init(struct vmw_private *dev_priv)
708 {
709 	int ret;
710 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
711 	ret = vmw_thp_init(dev_priv);
712 #else
713 	ret = ttm_range_man_init(&dev_priv->bdev, TTM_PL_VRAM, false,
714 				 dev_priv->vram_size >> PAGE_SHIFT);
715 #endif
716 	ttm_resource_manager_set_used(ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM), false);
717 	return ret;
718 }
719 
720 static void vmw_vram_manager_fini(struct vmw_private *dev_priv)
721 {
722 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
723 	vmw_thp_fini(dev_priv);
724 #else
725 	ttm_range_man_fini(&dev_priv->bdev, TTM_PL_VRAM);
726 #endif
727 }
728 
729 static int vmw_setup_pci_resources(struct vmw_private *dev,
730 				   u32 pci_id)
731 {
732 	resource_size_t rmmio_start;
733 	resource_size_t rmmio_size;
734 	resource_size_t fifo_start;
735 	resource_size_t fifo_size;
736 	int ret;
737 	struct pci_dev *pdev = to_pci_dev(dev->drm.dev);
738 
739 	pci_set_master(pdev);
740 
741 	ret = pci_request_regions(pdev, "vmwgfx probe");
742 	if (ret)
743 		return ret;
744 
745 	dev->pci_id = pci_id;
746 	if (pci_id == VMWGFX_PCI_ID_SVGA3) {
747 		rmmio_start = pci_resource_start(pdev, 0);
748 		rmmio_size = pci_resource_len(pdev, 0);
749 		dev->vram_start = pci_resource_start(pdev, 2);
750 		dev->vram_size = pci_resource_len(pdev, 2);
751 
752 		drm_info(&dev->drm,
753 			"Register MMIO at 0x%pa size is %llu kiB\n",
754 			 &rmmio_start, (uint64_t)rmmio_size / 1024);
755 		dev->rmmio = devm_ioremap(dev->drm.dev,
756 					  rmmio_start,
757 					  rmmio_size);
758 		if (!dev->rmmio) {
759 			drm_err(&dev->drm,
760 				"Failed mapping registers mmio memory.\n");
761 			pci_release_regions(pdev);
762 			return -ENOMEM;
763 		}
764 	} else if (pci_id == VMWGFX_PCI_ID_SVGA2) {
765 		dev->io_start = pci_resource_start(pdev, 0);
766 		dev->vram_start = pci_resource_start(pdev, 1);
767 		dev->vram_size = pci_resource_len(pdev, 1);
768 		fifo_start = pci_resource_start(pdev, 2);
769 		fifo_size = pci_resource_len(pdev, 2);
770 
771 		drm_info(&dev->drm,
772 			 "FIFO at %pa size is %llu kiB\n",
773 			 &fifo_start, (uint64_t)fifo_size / 1024);
774 		dev->fifo_mem = devm_memremap(dev->drm.dev,
775 					      fifo_start,
776 					      fifo_size,
777 					      MEMREMAP_WB);
778 
779 		if (IS_ERR(dev->fifo_mem)) {
780 			drm_err(&dev->drm,
781 				  "Failed mapping FIFO memory.\n");
782 			pci_release_regions(pdev);
783 			return PTR_ERR(dev->fifo_mem);
784 		}
785 	} else {
786 		pci_release_regions(pdev);
787 		return -EINVAL;
788 	}
789 
790 	/*
791 	 * This is approximate size of the vram, the exact size will only
792 	 * be known after we read SVGA_REG_VRAM_SIZE. The PCI resource
793 	 * size will be equal to or bigger than the size reported by
794 	 * SVGA_REG_VRAM_SIZE.
795 	 */
796 	drm_info(&dev->drm,
797 		 "VRAM at %pa size is %llu kiB\n",
798 		 &dev->vram_start, (uint64_t)dev->vram_size / 1024);
799 
800 	return 0;
801 }
802 
803 static int vmw_detect_version(struct vmw_private *dev)
804 {
805 	uint32_t svga_id;
806 
807 	vmw_write(dev, SVGA_REG_ID, vmw_is_svga_v3(dev) ?
808 			  SVGA_ID_3 : SVGA_ID_2);
809 	svga_id = vmw_read(dev, SVGA_REG_ID);
810 	if (svga_id != SVGA_ID_2 && svga_id != SVGA_ID_3) {
811 		drm_err(&dev->drm,
812 			"Unsupported SVGA ID 0x%x on chipset 0x%x\n",
813 			svga_id, dev->pci_id);
814 		return -ENOSYS;
815 	}
816 	BUG_ON(vmw_is_svga_v3(dev) && (svga_id != SVGA_ID_3));
817 	drm_info(&dev->drm,
818 		 "Running on SVGA version %d.\n", (svga_id & 0xff));
819 	return 0;
820 }
821 
822 static int vmw_driver_load(struct vmw_private *dev_priv, u32 pci_id)
823 {
824 	int ret;
825 	enum vmw_res_type i;
826 	bool refuse_dma = false;
827 	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
828 
829 	dev_priv->drm.dev_private = dev_priv;
830 
831 	mutex_init(&dev_priv->cmdbuf_mutex);
832 	mutex_init(&dev_priv->binding_mutex);
833 	spin_lock_init(&dev_priv->resource_lock);
834 	spin_lock_init(&dev_priv->hw_lock);
835 	spin_lock_init(&dev_priv->waiter_lock);
836 	spin_lock_init(&dev_priv->cursor_lock);
837 
838 	ret = vmw_setup_pci_resources(dev_priv, pci_id);
839 	if (ret)
840 		return ret;
841 	ret = vmw_detect_version(dev_priv);
842 	if (ret)
843 		goto out_no_pci_or_version;
844 
845 
846 	for (i = vmw_res_context; i < vmw_res_max; ++i) {
847 		idr_init_base(&dev_priv->res_idr[i], 1);
848 		INIT_LIST_HEAD(&dev_priv->res_lru[i]);
849 	}
850 
851 	init_waitqueue_head(&dev_priv->fence_queue);
852 	init_waitqueue_head(&dev_priv->fifo_queue);
853 	dev_priv->fence_queue_waiters = 0;
854 	dev_priv->fifo_queue_waiters = 0;
855 
856 	dev_priv->used_memory_size = 0;
857 
858 	dev_priv->assume_16bpp = !!vmw_assume_16bpp;
859 
860 	dev_priv->enable_fb = enable_fbdev;
861 
862 
863 	dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
864 
865 	if (dev_priv->capabilities & SVGA_CAP_CAP2_REGISTER) {
866 		dev_priv->capabilities2 = vmw_read(dev_priv, SVGA_REG_CAP2);
867 	}
868 
869 
870 	ret = vmw_dma_select_mode(dev_priv);
871 	if (unlikely(ret != 0)) {
872 		drm_info(&dev_priv->drm,
873 			 "Restricting capabilities since DMA not available.\n");
874 		refuse_dma = true;
875 		if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS)
876 			drm_info(&dev_priv->drm,
877 				 "Disabling 3D acceleration.\n");
878 	}
879 
880 	dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
881 	dev_priv->fifo_mem_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
882 	dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
883 	dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
884 
885 	vmw_get_initial_size(dev_priv);
886 
887 	if (dev_priv->capabilities & SVGA_CAP_GMR2) {
888 		dev_priv->max_gmr_ids =
889 			vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
890 		dev_priv->max_gmr_pages =
891 			vmw_read(dev_priv, SVGA_REG_GMRS_MAX_PAGES);
892 		dev_priv->memory_size =
893 			vmw_read(dev_priv, SVGA_REG_MEMORY_SIZE);
894 		dev_priv->memory_size -= dev_priv->vram_size;
895 	} else {
896 		/*
897 		 * An arbitrary limit of 512MiB on surface
898 		 * memory. But all HWV8 hardware supports GMR2.
899 		 */
900 		dev_priv->memory_size = 512*1024*1024;
901 	}
902 	dev_priv->max_mob_pages = 0;
903 	dev_priv->max_mob_size = 0;
904 	if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
905 		uint64_t mem_size;
906 
907 		if (dev_priv->capabilities2 & SVGA_CAP2_GB_MEMSIZE_2)
908 			mem_size = vmw_read(dev_priv,
909 					    SVGA_REG_GBOBJECT_MEM_SIZE_KB);
910 		else
911 			mem_size =
912 				vmw_read(dev_priv,
913 					 SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB);
914 
915 		/*
916 		 * Workaround for low memory 2D VMs to compensate for the
917 		 * allocation taken by fbdev
918 		 */
919 		if (!(dev_priv->capabilities & SVGA_CAP_3D))
920 			mem_size *= 3;
921 
922 		dev_priv->max_mob_pages = mem_size * 1024 / PAGE_SIZE;
923 		dev_priv->max_primary_mem =
924 			vmw_read(dev_priv, SVGA_REG_MAX_PRIMARY_MEM);
925 		dev_priv->max_mob_size =
926 			vmw_read(dev_priv, SVGA_REG_MOB_MAX_SIZE);
927 		dev_priv->stdu_max_width =
928 			vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_WIDTH);
929 		dev_priv->stdu_max_height =
930 			vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_HEIGHT);
931 
932 		vmw_write(dev_priv, SVGA_REG_DEV_CAP,
933 			  SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH);
934 		dev_priv->texture_max_width = vmw_read(dev_priv,
935 						       SVGA_REG_DEV_CAP);
936 		vmw_write(dev_priv, SVGA_REG_DEV_CAP,
937 			  SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT);
938 		dev_priv->texture_max_height = vmw_read(dev_priv,
939 							SVGA_REG_DEV_CAP);
940 	} else {
941 		dev_priv->texture_max_width = 8192;
942 		dev_priv->texture_max_height = 8192;
943 		dev_priv->max_primary_mem = dev_priv->vram_size;
944 	}
945 	drm_info(&dev_priv->drm,
946 		 "Legacy memory limits: VRAM = %llu kB, FIFO = %llu kB, surface = %u kB\n",
947 		 (u64)dev_priv->vram_size / 1024,
948 		 (u64)dev_priv->fifo_mem_size / 1024,
949 		 dev_priv->memory_size / 1024);
950 
951 	drm_info(&dev_priv->drm,
952 		 "MOB limits: max mob size = %u kB, max mob pages = %u\n",
953 		 dev_priv->max_mob_size / 1024, dev_priv->max_mob_pages);
954 
955 	vmw_print_bitmap(&dev_priv->drm, "Capabilities",
956 			 dev_priv->capabilities,
957 			 cap1_names, ARRAY_SIZE(cap1_names));
958 	if (dev_priv->capabilities & SVGA_CAP_CAP2_REGISTER)
959 		vmw_print_bitmap(&dev_priv->drm, "Capabilities2",
960 				 dev_priv->capabilities2,
961 				 cap2_names, ARRAY_SIZE(cap2_names));
962 
963 	ret = vmw_dma_masks(dev_priv);
964 	if (unlikely(ret != 0))
965 		goto out_err0;
966 
967 	dma_set_max_seg_size(dev_priv->drm.dev, U32_MAX);
968 
969 	if (dev_priv->capabilities & SVGA_CAP_GMR2) {
970 		drm_info(&dev_priv->drm,
971 			 "Max GMR ids is %u\n",
972 			 (unsigned)dev_priv->max_gmr_ids);
973 		drm_info(&dev_priv->drm,
974 			 "Max number of GMR pages is %u\n",
975 			 (unsigned)dev_priv->max_gmr_pages);
976 	}
977 	drm_info(&dev_priv->drm,
978 		 "Maximum display memory size is %llu kiB\n",
979 		 (uint64_t)dev_priv->max_primary_mem / 1024);
980 
981 	/* Need mmio memory to check for fifo pitchlock cap. */
982 	if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
983 	    !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
984 	    !vmw_fifo_have_pitchlock(dev_priv)) {
985 		ret = -ENOSYS;
986 		DRM_ERROR("Hardware has no pitchlock\n");
987 		goto out_err0;
988 	}
989 
990 	dev_priv->tdev = ttm_object_device_init(&ttm_mem_glob, 12,
991 						&vmw_prime_dmabuf_ops);
992 
993 	if (unlikely(dev_priv->tdev == NULL)) {
994 		drm_err(&dev_priv->drm,
995 			"Unable to initialize TTM object management.\n");
996 		ret = -ENOMEM;
997 		goto out_err0;
998 	}
999 
1000 	if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
1001 		ret = vmw_irq_install(&dev_priv->drm, pdev->irq);
1002 		if (ret != 0) {
1003 			drm_err(&dev_priv->drm,
1004 				"Failed installing irq: %d\n", ret);
1005 			goto out_no_irq;
1006 		}
1007 	}
1008 
1009 	dev_priv->fman = vmw_fence_manager_init(dev_priv);
1010 	if (unlikely(dev_priv->fman == NULL)) {
1011 		ret = -ENOMEM;
1012 		goto out_no_fman;
1013 	}
1014 
1015 	drm_vma_offset_manager_init(&dev_priv->vma_manager,
1016 				    DRM_FILE_PAGE_OFFSET_START,
1017 				    DRM_FILE_PAGE_OFFSET_SIZE);
1018 	ret = ttm_device_init(&dev_priv->bdev, &vmw_bo_driver,
1019 			      dev_priv->drm.dev,
1020 			      dev_priv->drm.anon_inode->i_mapping,
1021 			      &dev_priv->vma_manager,
1022 			      dev_priv->map_mode == vmw_dma_alloc_coherent,
1023 			      false);
1024 	if (unlikely(ret != 0)) {
1025 		drm_err(&dev_priv->drm,
1026 			"Failed initializing TTM buffer object driver.\n");
1027 		goto out_no_bdev;
1028 	}
1029 
1030 	/*
1031 	 * Enable VRAM, but initially don't use it until SVGA is enabled and
1032 	 * unhidden.
1033 	 */
1034 
1035 	ret = vmw_vram_manager_init(dev_priv);
1036 	if (unlikely(ret != 0)) {
1037 		drm_err(&dev_priv->drm,
1038 			"Failed initializing memory manager for VRAM.\n");
1039 		goto out_no_vram;
1040 	}
1041 
1042 	ret = vmw_devcaps_create(dev_priv);
1043 	if (unlikely(ret != 0)) {
1044 		drm_err(&dev_priv->drm,
1045 			"Failed initializing device caps.\n");
1046 		goto out_no_vram;
1047 	}
1048 
1049 	/*
1050 	 * "Guest Memory Regions" is an aperture like feature with
1051 	 *  one slot per bo. There is an upper limit of the number of
1052 	 *  slots as well as the bo size.
1053 	 */
1054 	dev_priv->has_gmr = true;
1055 	/* TODO: This is most likely not correct */
1056 	if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) ||
1057 	    refuse_dma ||
1058 	    vmw_gmrid_man_init(dev_priv, VMW_PL_GMR) != 0) {
1059 		drm_info(&dev_priv->drm,
1060 			  "No GMR memory available. "
1061 			 "Graphics memory resources are very limited.\n");
1062 		dev_priv->has_gmr = false;
1063 	}
1064 
1065 	if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS && !refuse_dma) {
1066 		dev_priv->has_mob = true;
1067 
1068 		if (vmw_gmrid_man_init(dev_priv, VMW_PL_MOB) != 0) {
1069 			drm_info(&dev_priv->drm,
1070 				 "No MOB memory available. "
1071 				 "3D will be disabled.\n");
1072 			dev_priv->has_mob = false;
1073 		}
1074 	}
1075 
1076 	if (dev_priv->has_mob && (dev_priv->capabilities & SVGA_CAP_DX)) {
1077 		if (vmw_devcap_get(dev_priv, SVGA3D_DEVCAP_DXCONTEXT))
1078 			dev_priv->sm_type = VMW_SM_4;
1079 	}
1080 
1081 	vmw_validation_mem_init_ttm(dev_priv, VMWGFX_VALIDATION_MEM_GRAN);
1082 
1083 	/* SVGA_CAP2_DX2 (DefineGBSurface_v3) is needed for SM4_1 support */
1084 	if (has_sm4_context(dev_priv) &&
1085 	    (dev_priv->capabilities2 & SVGA_CAP2_DX2)) {
1086 		if (vmw_devcap_get(dev_priv, SVGA3D_DEVCAP_SM41))
1087 			dev_priv->sm_type = VMW_SM_4_1;
1088 		if (has_sm4_1_context(dev_priv) &&
1089 				(dev_priv->capabilities2 & SVGA_CAP2_DX3)) {
1090 			if (vmw_devcap_get(dev_priv, SVGA3D_DEVCAP_SM5))
1091 				dev_priv->sm_type = VMW_SM_5;
1092 		}
1093 	}
1094 
1095 	ret = vmw_kms_init(dev_priv);
1096 	if (unlikely(ret != 0))
1097 		goto out_no_kms;
1098 	vmw_overlay_init(dev_priv);
1099 
1100 	ret = vmw_request_device(dev_priv);
1101 	if (ret)
1102 		goto out_no_fifo;
1103 
1104 	vmw_print_sm_type(dev_priv);
1105 	vmw_host_printf("vmwgfx: Module Version: %d.%d.%d (kernel: %s)",
1106 			VMWGFX_DRIVER_MAJOR, VMWGFX_DRIVER_MINOR,
1107 			VMWGFX_DRIVER_PATCHLEVEL, UTS_RELEASE);
1108 
1109 	if (dev_priv->enable_fb) {
1110 		vmw_fifo_resource_inc(dev_priv);
1111 		vmw_svga_enable(dev_priv);
1112 		vmw_fb_init(dev_priv);
1113 	}
1114 
1115 	dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
1116 	register_pm_notifier(&dev_priv->pm_nb);
1117 
1118 	return 0;
1119 
1120 out_no_fifo:
1121 	vmw_overlay_close(dev_priv);
1122 	vmw_kms_close(dev_priv);
1123 out_no_kms:
1124 	if (dev_priv->has_mob)
1125 		vmw_gmrid_man_fini(dev_priv, VMW_PL_MOB);
1126 	if (dev_priv->has_gmr)
1127 		vmw_gmrid_man_fini(dev_priv, VMW_PL_GMR);
1128 	vmw_devcaps_destroy(dev_priv);
1129 	vmw_vram_manager_fini(dev_priv);
1130 out_no_vram:
1131 	ttm_device_fini(&dev_priv->bdev);
1132 out_no_bdev:
1133 	vmw_fence_manager_takedown(dev_priv->fman);
1134 out_no_fman:
1135 	if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
1136 		vmw_irq_uninstall(&dev_priv->drm);
1137 out_no_irq:
1138 	ttm_object_device_release(&dev_priv->tdev);
1139 out_err0:
1140 	for (i = vmw_res_context; i < vmw_res_max; ++i)
1141 		idr_destroy(&dev_priv->res_idr[i]);
1142 
1143 	if (dev_priv->ctx.staged_bindings)
1144 		vmw_binding_state_free(dev_priv->ctx.staged_bindings);
1145 out_no_pci_or_version:
1146 	pci_release_regions(pdev);
1147 	return ret;
1148 }
1149 
1150 static void vmw_driver_unload(struct drm_device *dev)
1151 {
1152 	struct vmw_private *dev_priv = vmw_priv(dev);
1153 	struct pci_dev *pdev = to_pci_dev(dev->dev);
1154 	enum vmw_res_type i;
1155 
1156 	unregister_pm_notifier(&dev_priv->pm_nb);
1157 
1158 	if (dev_priv->ctx.res_ht_initialized)
1159 		drm_ht_remove(&dev_priv->ctx.res_ht);
1160 	vfree(dev_priv->ctx.cmd_bounce);
1161 	if (dev_priv->enable_fb) {
1162 		vmw_fb_off(dev_priv);
1163 		vmw_fb_close(dev_priv);
1164 		vmw_fifo_resource_dec(dev_priv);
1165 		vmw_svga_disable(dev_priv);
1166 	}
1167 
1168 	vmw_kms_close(dev_priv);
1169 	vmw_overlay_close(dev_priv);
1170 
1171 	if (dev_priv->has_gmr)
1172 		vmw_gmrid_man_fini(dev_priv, VMW_PL_GMR);
1173 
1174 	vmw_release_device_early(dev_priv);
1175 	if (dev_priv->has_mob)
1176 		vmw_gmrid_man_fini(dev_priv, VMW_PL_MOB);
1177 	vmw_devcaps_destroy(dev_priv);
1178 	vmw_vram_manager_fini(dev_priv);
1179 	ttm_device_fini(&dev_priv->bdev);
1180 	drm_vma_offset_manager_destroy(&dev_priv->vma_manager);
1181 	vmw_release_device_late(dev_priv);
1182 	vmw_fence_manager_takedown(dev_priv->fman);
1183 	if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
1184 		vmw_irq_uninstall(&dev_priv->drm);
1185 
1186 	ttm_object_device_release(&dev_priv->tdev);
1187 	if (dev_priv->ctx.staged_bindings)
1188 		vmw_binding_state_free(dev_priv->ctx.staged_bindings);
1189 
1190 	for (i = vmw_res_context; i < vmw_res_max; ++i)
1191 		idr_destroy(&dev_priv->res_idr[i]);
1192 
1193 	vmw_mksstat_remove_all(dev_priv);
1194 
1195 	pci_release_regions(pdev);
1196 }
1197 
1198 static void vmw_postclose(struct drm_device *dev,
1199 			 struct drm_file *file_priv)
1200 {
1201 	struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
1202 
1203 	ttm_object_file_release(&vmw_fp->tfile);
1204 	kfree(vmw_fp);
1205 }
1206 
1207 static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
1208 {
1209 	struct vmw_private *dev_priv = vmw_priv(dev);
1210 	struct vmw_fpriv *vmw_fp;
1211 	int ret = -ENOMEM;
1212 
1213 	vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
1214 	if (unlikely(!vmw_fp))
1215 		return ret;
1216 
1217 	vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
1218 	if (unlikely(vmw_fp->tfile == NULL))
1219 		goto out_no_tfile;
1220 
1221 	file_priv->driver_priv = vmw_fp;
1222 
1223 	return 0;
1224 
1225 out_no_tfile:
1226 	kfree(vmw_fp);
1227 	return ret;
1228 }
1229 
1230 static long vmw_generic_ioctl(struct file *filp, unsigned int cmd,
1231 			      unsigned long arg,
1232 			      long (*ioctl_func)(struct file *, unsigned int,
1233 						 unsigned long))
1234 {
1235 	struct drm_file *file_priv = filp->private_data;
1236 	struct drm_device *dev = file_priv->minor->dev;
1237 	unsigned int nr = DRM_IOCTL_NR(cmd);
1238 	unsigned int flags;
1239 
1240 	/*
1241 	 * Do extra checking on driver private ioctls.
1242 	 */
1243 
1244 	if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
1245 	    && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
1246 		const struct drm_ioctl_desc *ioctl =
1247 			&vmw_ioctls[nr - DRM_COMMAND_BASE];
1248 
1249 		if (nr == DRM_COMMAND_BASE + DRM_VMW_EXECBUF) {
1250 			return ioctl_func(filp, cmd, arg);
1251 		} else if (nr == DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT) {
1252 			if (!drm_is_current_master(file_priv) &&
1253 			    !capable(CAP_SYS_ADMIN))
1254 				return -EACCES;
1255 		}
1256 
1257 		if (unlikely(ioctl->cmd != cmd))
1258 			goto out_io_encoding;
1259 
1260 		flags = ioctl->flags;
1261 	} else if (!drm_ioctl_flags(nr, &flags))
1262 		return -EINVAL;
1263 
1264 	return ioctl_func(filp, cmd, arg);
1265 
1266 out_io_encoding:
1267 	DRM_ERROR("Invalid command format, ioctl %d\n",
1268 		  nr - DRM_COMMAND_BASE);
1269 
1270 	return -EINVAL;
1271 }
1272 
1273 static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
1274 			       unsigned long arg)
1275 {
1276 	return vmw_generic_ioctl(filp, cmd, arg, &drm_ioctl);
1277 }
1278 
1279 #ifdef CONFIG_COMPAT
1280 static long vmw_compat_ioctl(struct file *filp, unsigned int cmd,
1281 			     unsigned long arg)
1282 {
1283 	return vmw_generic_ioctl(filp, cmd, arg, &drm_compat_ioctl);
1284 }
1285 #endif
1286 
1287 static void vmw_master_set(struct drm_device *dev,
1288 			   struct drm_file *file_priv,
1289 			   bool from_open)
1290 {
1291 	/*
1292 	 * Inform a new master that the layout may have changed while
1293 	 * it was gone.
1294 	 */
1295 	if (!from_open)
1296 		drm_sysfs_hotplug_event(dev);
1297 }
1298 
1299 static void vmw_master_drop(struct drm_device *dev,
1300 			    struct drm_file *file_priv)
1301 {
1302 	struct vmw_private *dev_priv = vmw_priv(dev);
1303 
1304 	vmw_kms_legacy_hotspot_clear(dev_priv);
1305 	if (!dev_priv->enable_fb)
1306 		vmw_svga_disable(dev_priv);
1307 }
1308 
1309 /**
1310  * __vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1311  *
1312  * @dev_priv: Pointer to device private struct.
1313  * Needs the reservation sem to be held in non-exclusive mode.
1314  */
1315 static void __vmw_svga_enable(struct vmw_private *dev_priv)
1316 {
1317 	struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM);
1318 
1319 	if (!ttm_resource_manager_used(man)) {
1320 		vmw_write(dev_priv, SVGA_REG_ENABLE, SVGA_REG_ENABLE_ENABLE);
1321 		ttm_resource_manager_set_used(man, true);
1322 	}
1323 }
1324 
1325 /**
1326  * vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1327  *
1328  * @dev_priv: Pointer to device private struct.
1329  */
1330 void vmw_svga_enable(struct vmw_private *dev_priv)
1331 {
1332 	__vmw_svga_enable(dev_priv);
1333 }
1334 
1335 /**
1336  * __vmw_svga_disable - Disable SVGA mode and use of VRAM.
1337  *
1338  * @dev_priv: Pointer to device private struct.
1339  * Needs the reservation sem to be held in exclusive mode.
1340  * Will not empty VRAM. VRAM must be emptied by caller.
1341  */
1342 static void __vmw_svga_disable(struct vmw_private *dev_priv)
1343 {
1344 	struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM);
1345 
1346 	if (ttm_resource_manager_used(man)) {
1347 		ttm_resource_manager_set_used(man, false);
1348 		vmw_write(dev_priv, SVGA_REG_ENABLE,
1349 			  SVGA_REG_ENABLE_HIDE |
1350 			  SVGA_REG_ENABLE_ENABLE);
1351 	}
1352 }
1353 
1354 /**
1355  * vmw_svga_disable - Disable SVGA_MODE, and use of VRAM. Keep the fifo
1356  * running.
1357  *
1358  * @dev_priv: Pointer to device private struct.
1359  * Will empty VRAM.
1360  */
1361 void vmw_svga_disable(struct vmw_private *dev_priv)
1362 {
1363 	struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM);
1364 	/*
1365 	 * Disabling SVGA will turn off device modesetting capabilities, so
1366 	 * notify KMS about that so that it doesn't cache atomic state that
1367 	 * isn't valid anymore, for example crtcs turned on.
1368 	 * Strictly we'd want to do this under the SVGA lock (or an SVGA mutex),
1369 	 * but vmw_kms_lost_device() takes the reservation sem and thus we'll
1370 	 * end up with lock order reversal. Thus, a master may actually perform
1371 	 * a new modeset just after we call vmw_kms_lost_device() and race with
1372 	 * vmw_svga_disable(), but that should at worst cause atomic KMS state
1373 	 * to be inconsistent with the device, causing modesetting problems.
1374 	 *
1375 	 */
1376 	vmw_kms_lost_device(&dev_priv->drm);
1377 	if (ttm_resource_manager_used(man)) {
1378 		if (ttm_resource_manager_evict_all(&dev_priv->bdev, man))
1379 			DRM_ERROR("Failed evicting VRAM buffers.\n");
1380 		ttm_resource_manager_set_used(man, false);
1381 		vmw_write(dev_priv, SVGA_REG_ENABLE,
1382 			  SVGA_REG_ENABLE_HIDE |
1383 			  SVGA_REG_ENABLE_ENABLE);
1384 	}
1385 }
1386 
1387 static void vmw_remove(struct pci_dev *pdev)
1388 {
1389 	struct drm_device *dev = pci_get_drvdata(pdev);
1390 
1391 	ttm_mem_global_release(&ttm_mem_glob);
1392 	drm_dev_unregister(dev);
1393 	vmw_driver_unload(dev);
1394 }
1395 
1396 static unsigned long
1397 vmw_get_unmapped_area(struct file *file, unsigned long uaddr,
1398 		      unsigned long len, unsigned long pgoff,
1399 		      unsigned long flags)
1400 {
1401 	struct drm_file *file_priv = file->private_data;
1402 	struct vmw_private *dev_priv = vmw_priv(file_priv->minor->dev);
1403 
1404 	return drm_get_unmapped_area(file, uaddr, len, pgoff, flags,
1405 				     &dev_priv->vma_manager);
1406 }
1407 
1408 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
1409 			      void *ptr)
1410 {
1411 	struct vmw_private *dev_priv =
1412 		container_of(nb, struct vmw_private, pm_nb);
1413 
1414 	switch (val) {
1415 	case PM_HIBERNATION_PREPARE:
1416 		/*
1417 		 * Take the reservation sem in write mode, which will make sure
1418 		 * there are no other processes holding a buffer object
1419 		 * reservation, meaning we should be able to evict all buffer
1420 		 * objects if needed.
1421 		 * Once user-space processes have been frozen, we can release
1422 		 * the lock again.
1423 		 */
1424 		dev_priv->suspend_locked = true;
1425 		break;
1426 	case PM_POST_HIBERNATION:
1427 	case PM_POST_RESTORE:
1428 		if (READ_ONCE(dev_priv->suspend_locked)) {
1429 			dev_priv->suspend_locked = false;
1430 		}
1431 		break;
1432 	default:
1433 		break;
1434 	}
1435 	return 0;
1436 }
1437 
1438 static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
1439 {
1440 	struct drm_device *dev = pci_get_drvdata(pdev);
1441 	struct vmw_private *dev_priv = vmw_priv(dev);
1442 
1443 	if (dev_priv->refuse_hibernation)
1444 		return -EBUSY;
1445 
1446 	pci_save_state(pdev);
1447 	pci_disable_device(pdev);
1448 	pci_set_power_state(pdev, PCI_D3hot);
1449 	return 0;
1450 }
1451 
1452 static int vmw_pci_resume(struct pci_dev *pdev)
1453 {
1454 	pci_set_power_state(pdev, PCI_D0);
1455 	pci_restore_state(pdev);
1456 	return pci_enable_device(pdev);
1457 }
1458 
1459 static int vmw_pm_suspend(struct device *kdev)
1460 {
1461 	struct pci_dev *pdev = to_pci_dev(kdev);
1462 	struct pm_message dummy;
1463 
1464 	dummy.event = 0;
1465 
1466 	return vmw_pci_suspend(pdev, dummy);
1467 }
1468 
1469 static int vmw_pm_resume(struct device *kdev)
1470 {
1471 	struct pci_dev *pdev = to_pci_dev(kdev);
1472 
1473 	return vmw_pci_resume(pdev);
1474 }
1475 
1476 static int vmw_pm_freeze(struct device *kdev)
1477 {
1478 	struct pci_dev *pdev = to_pci_dev(kdev);
1479 	struct drm_device *dev = pci_get_drvdata(pdev);
1480 	struct vmw_private *dev_priv = vmw_priv(dev);
1481 	struct ttm_operation_ctx ctx = {
1482 		.interruptible = false,
1483 		.no_wait_gpu = false
1484 	};
1485 	int ret;
1486 
1487 	/*
1488 	 * No user-space processes should be running now.
1489 	 */
1490 	ret = vmw_kms_suspend(&dev_priv->drm);
1491 	if (ret) {
1492 		DRM_ERROR("Failed to freeze modesetting.\n");
1493 		return ret;
1494 	}
1495 	if (dev_priv->enable_fb)
1496 		vmw_fb_off(dev_priv);
1497 
1498 	vmw_execbuf_release_pinned_bo(dev_priv);
1499 	vmw_resource_evict_all(dev_priv);
1500 	vmw_release_device_early(dev_priv);
1501 	while (ttm_device_swapout(&dev_priv->bdev, &ctx, GFP_KERNEL) > 0);
1502 	if (dev_priv->enable_fb)
1503 		vmw_fifo_resource_dec(dev_priv);
1504 	if (atomic_read(&dev_priv->num_fifo_resources) != 0) {
1505 		DRM_ERROR("Can't hibernate while 3D resources are active.\n");
1506 		if (dev_priv->enable_fb)
1507 			vmw_fifo_resource_inc(dev_priv);
1508 		WARN_ON(vmw_request_device_late(dev_priv));
1509 		dev_priv->suspend_locked = false;
1510 		if (dev_priv->suspend_state)
1511 			vmw_kms_resume(dev);
1512 		if (dev_priv->enable_fb)
1513 			vmw_fb_on(dev_priv);
1514 		return -EBUSY;
1515 	}
1516 
1517 	vmw_fence_fifo_down(dev_priv->fman);
1518 	__vmw_svga_disable(dev_priv);
1519 
1520 	vmw_release_device_late(dev_priv);
1521 	return 0;
1522 }
1523 
1524 static int vmw_pm_restore(struct device *kdev)
1525 {
1526 	struct pci_dev *pdev = to_pci_dev(kdev);
1527 	struct drm_device *dev = pci_get_drvdata(pdev);
1528 	struct vmw_private *dev_priv = vmw_priv(dev);
1529 	int ret;
1530 
1531 	vmw_detect_version(dev_priv);
1532 
1533 	if (dev_priv->enable_fb)
1534 		vmw_fifo_resource_inc(dev_priv);
1535 
1536 	ret = vmw_request_device(dev_priv);
1537 	if (ret)
1538 		return ret;
1539 
1540 	if (dev_priv->enable_fb)
1541 		__vmw_svga_enable(dev_priv);
1542 
1543 	vmw_fence_fifo_up(dev_priv->fman);
1544 	dev_priv->suspend_locked = false;
1545 	if (dev_priv->suspend_state)
1546 		vmw_kms_resume(&dev_priv->drm);
1547 
1548 	if (dev_priv->enable_fb)
1549 		vmw_fb_on(dev_priv);
1550 
1551 	return 0;
1552 }
1553 
1554 static const struct dev_pm_ops vmw_pm_ops = {
1555 	.freeze = vmw_pm_freeze,
1556 	.thaw = vmw_pm_restore,
1557 	.restore = vmw_pm_restore,
1558 	.suspend = vmw_pm_suspend,
1559 	.resume = vmw_pm_resume,
1560 };
1561 
1562 static const struct file_operations vmwgfx_driver_fops = {
1563 	.owner = THIS_MODULE,
1564 	.open = drm_open,
1565 	.release = drm_release,
1566 	.unlocked_ioctl = vmw_unlocked_ioctl,
1567 	.mmap = vmw_mmap,
1568 	.poll = drm_poll,
1569 	.read = drm_read,
1570 #if defined(CONFIG_COMPAT)
1571 	.compat_ioctl = vmw_compat_ioctl,
1572 #endif
1573 	.llseek = noop_llseek,
1574 	.get_unmapped_area = vmw_get_unmapped_area,
1575 };
1576 
1577 static const struct drm_driver driver = {
1578 	.driver_features =
1579 	DRIVER_MODESET | DRIVER_RENDER | DRIVER_ATOMIC,
1580 	.ioctls = vmw_ioctls,
1581 	.num_ioctls = ARRAY_SIZE(vmw_ioctls),
1582 	.master_set = vmw_master_set,
1583 	.master_drop = vmw_master_drop,
1584 	.open = vmw_driver_open,
1585 	.postclose = vmw_postclose,
1586 
1587 	.dumb_create = vmw_dumb_create,
1588 	.dumb_map_offset = vmw_dumb_map_offset,
1589 	.dumb_destroy = vmw_dumb_destroy,
1590 
1591 	.prime_fd_to_handle = vmw_prime_fd_to_handle,
1592 	.prime_handle_to_fd = vmw_prime_handle_to_fd,
1593 
1594 	.fops = &vmwgfx_driver_fops,
1595 	.name = VMWGFX_DRIVER_NAME,
1596 	.desc = VMWGFX_DRIVER_DESC,
1597 	.date = VMWGFX_DRIVER_DATE,
1598 	.major = VMWGFX_DRIVER_MAJOR,
1599 	.minor = VMWGFX_DRIVER_MINOR,
1600 	.patchlevel = VMWGFX_DRIVER_PATCHLEVEL
1601 };
1602 
1603 static struct pci_driver vmw_pci_driver = {
1604 	.name = VMWGFX_DRIVER_NAME,
1605 	.id_table = vmw_pci_id_list,
1606 	.probe = vmw_probe,
1607 	.remove = vmw_remove,
1608 	.driver = {
1609 		.pm = &vmw_pm_ops
1610 	}
1611 };
1612 
1613 static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1614 {
1615 	struct vmw_private *vmw;
1616 	int ret;
1617 
1618 	ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &driver);
1619 	if (ret)
1620 		return ret;
1621 
1622 	ret = pcim_enable_device(pdev);
1623 	if (ret)
1624 		return ret;
1625 
1626 	vmw = devm_drm_dev_alloc(&pdev->dev, &driver,
1627 				 struct vmw_private, drm);
1628 	if (IS_ERR(vmw))
1629 		return PTR_ERR(vmw);
1630 
1631 	pci_set_drvdata(pdev, &vmw->drm);
1632 
1633 	ret = ttm_mem_global_init(&ttm_mem_glob, &pdev->dev);
1634 	if (ret)
1635 		return ret;
1636 
1637 	ret = vmw_driver_load(vmw, ent->device);
1638 	if (ret)
1639 		return ret;
1640 
1641 	ret = drm_dev_register(&vmw->drm, 0);
1642 	if (ret) {
1643 		vmw_driver_unload(&vmw->drm);
1644 		return ret;
1645 	}
1646 
1647 	return 0;
1648 }
1649 
1650 static int __init vmwgfx_init(void)
1651 {
1652 	int ret;
1653 
1654 	if (vgacon_text_force())
1655 		return -EINVAL;
1656 
1657 	ret = pci_register_driver(&vmw_pci_driver);
1658 	if (ret)
1659 		DRM_ERROR("Failed initializing DRM.\n");
1660 	return ret;
1661 }
1662 
1663 static void __exit vmwgfx_exit(void)
1664 {
1665 	pci_unregister_driver(&vmw_pci_driver);
1666 }
1667 
1668 module_init(vmwgfx_init);
1669 module_exit(vmwgfx_exit);
1670 
1671 MODULE_AUTHOR("VMware Inc. and others");
1672 MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
1673 MODULE_LICENSE("GPL and additional rights");
1674 MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "."
1675 	       __stringify(VMWGFX_DRIVER_MINOR) "."
1676 	       __stringify(VMWGFX_DRIVER_PATCHLEVEL) "."
1677 	       "0");
1678