1 // SPDX-License-Identifier: GPL-2.0 OR MIT
2 /**************************************************************************
4 * Copyright 2009-2016 VMware, Inc., Palo Alto, CA., USA
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #include <linux/console.h>
29 #include <linux/dma-mapping.h>
30 #include <linux/module.h>
31 #include <linux/pci.h>
32 #include <linux/mem_encrypt.h>
34 #include <drm/drm_drv.h>
35 #include <drm/drm_ioctl.h>
36 #include <drm/drm_sysfs.h>
37 #include <drm/ttm/ttm_bo_driver.h>
38 #include <drm/ttm/ttm_module.h>
39 #include <drm/ttm/ttm_placement.h>
41 #include "ttm_object.h"
42 #include "vmwgfx_binding.h"
43 #include "vmwgfx_drv.h"
45 #define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
46 #define VMWGFX_CHIP_SVGAII 0
47 #define VMW_FB_RESERVATION 0
49 #define VMW_MIN_INITIAL_WIDTH 800
50 #define VMW_MIN_INITIAL_HEIGHT 600
52 #ifndef VMWGFX_GIT_VERSION
53 #define VMWGFX_GIT_VERSION "Unknown"
56 #define VMWGFX_REPO "In Tree"
58 #define VMWGFX_VALIDATION_MEM_GRAN (16*PAGE_SIZE)
62 * Fully encoded drm commands. Might move to vmw_drm.h
65 #define DRM_IOCTL_VMW_GET_PARAM \
66 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM, \
67 struct drm_vmw_getparam_arg)
68 #define DRM_IOCTL_VMW_ALLOC_DMABUF \
69 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF, \
70 union drm_vmw_alloc_dmabuf_arg)
71 #define DRM_IOCTL_VMW_UNREF_DMABUF \
72 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF, \
73 struct drm_vmw_unref_dmabuf_arg)
74 #define DRM_IOCTL_VMW_CURSOR_BYPASS \
75 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS, \
76 struct drm_vmw_cursor_bypass_arg)
78 #define DRM_IOCTL_VMW_CONTROL_STREAM \
79 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM, \
80 struct drm_vmw_control_stream_arg)
81 #define DRM_IOCTL_VMW_CLAIM_STREAM \
82 DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM, \
83 struct drm_vmw_stream_arg)
84 #define DRM_IOCTL_VMW_UNREF_STREAM \
85 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM, \
86 struct drm_vmw_stream_arg)
88 #define DRM_IOCTL_VMW_CREATE_CONTEXT \
89 DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT, \
90 struct drm_vmw_context_arg)
91 #define DRM_IOCTL_VMW_UNREF_CONTEXT \
92 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT, \
93 struct drm_vmw_context_arg)
94 #define DRM_IOCTL_VMW_CREATE_SURFACE \
95 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE, \
96 union drm_vmw_surface_create_arg)
97 #define DRM_IOCTL_VMW_UNREF_SURFACE \
98 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE, \
99 struct drm_vmw_surface_arg)
100 #define DRM_IOCTL_VMW_REF_SURFACE \
101 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE, \
102 union drm_vmw_surface_reference_arg)
103 #define DRM_IOCTL_VMW_EXECBUF \
104 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF, \
105 struct drm_vmw_execbuf_arg)
106 #define DRM_IOCTL_VMW_GET_3D_CAP \
107 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_GET_3D_CAP, \
108 struct drm_vmw_get_3d_cap_arg)
109 #define DRM_IOCTL_VMW_FENCE_WAIT \
110 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT, \
111 struct drm_vmw_fence_wait_arg)
112 #define DRM_IOCTL_VMW_FENCE_SIGNALED \
113 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_SIGNALED, \
114 struct drm_vmw_fence_signaled_arg)
115 #define DRM_IOCTL_VMW_FENCE_UNREF \
116 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_UNREF, \
117 struct drm_vmw_fence_arg)
118 #define DRM_IOCTL_VMW_FENCE_EVENT \
119 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_EVENT, \
120 struct drm_vmw_fence_event_arg)
121 #define DRM_IOCTL_VMW_PRESENT \
122 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT, \
123 struct drm_vmw_present_arg)
124 #define DRM_IOCTL_VMW_PRESENT_READBACK \
125 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT_READBACK, \
126 struct drm_vmw_present_readback_arg)
127 #define DRM_IOCTL_VMW_UPDATE_LAYOUT \
128 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT, \
129 struct drm_vmw_update_layout_arg)
130 #define DRM_IOCTL_VMW_CREATE_SHADER \
131 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SHADER, \
132 struct drm_vmw_shader_create_arg)
133 #define DRM_IOCTL_VMW_UNREF_SHADER \
134 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SHADER, \
135 struct drm_vmw_shader_arg)
136 #define DRM_IOCTL_VMW_GB_SURFACE_CREATE \
137 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE, \
138 union drm_vmw_gb_surface_create_arg)
139 #define DRM_IOCTL_VMW_GB_SURFACE_REF \
140 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF, \
141 union drm_vmw_gb_surface_reference_arg)
142 #define DRM_IOCTL_VMW_SYNCCPU \
143 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_SYNCCPU, \
144 struct drm_vmw_synccpu_arg)
145 #define DRM_IOCTL_VMW_CREATE_EXTENDED_CONTEXT \
146 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_EXTENDED_CONTEXT, \
147 struct drm_vmw_context_arg)
148 #define DRM_IOCTL_VMW_GB_SURFACE_CREATE_EXT \
149 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE_EXT, \
150 union drm_vmw_gb_surface_create_ext_arg)
151 #define DRM_IOCTL_VMW_GB_SURFACE_REF_EXT \
152 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF_EXT, \
153 union drm_vmw_gb_surface_reference_ext_arg)
154 #define DRM_IOCTL_VMW_MSG \
155 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_MSG, \
156 struct drm_vmw_msg_arg)
159 * The core DRM version of this macro doesn't account for
163 #define VMW_IOCTL_DEF(ioctl, func, flags) \
164 [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = {DRM_IOCTL_##ioctl, flags, func}
170 static const struct drm_ioctl_desc vmw_ioctls[] = {
171 VMW_IOCTL_DEF(VMW_GET_PARAM, vmw_getparam_ioctl,
173 VMW_IOCTL_DEF(VMW_ALLOC_DMABUF, vmw_bo_alloc_ioctl,
175 VMW_IOCTL_DEF(VMW_UNREF_DMABUF, vmw_bo_unref_ioctl,
177 VMW_IOCTL_DEF(VMW_CURSOR_BYPASS,
178 vmw_kms_cursor_bypass_ioctl,
181 VMW_IOCTL_DEF(VMW_CONTROL_STREAM, vmw_overlay_ioctl,
183 VMW_IOCTL_DEF(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
185 VMW_IOCTL_DEF(VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
188 VMW_IOCTL_DEF(VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
190 VMW_IOCTL_DEF(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
192 VMW_IOCTL_DEF(VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
194 VMW_IOCTL_DEF(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
196 VMW_IOCTL_DEF(VMW_REF_SURFACE, vmw_surface_reference_ioctl,
198 VMW_IOCTL_DEF(VMW_EXECBUF, vmw_execbuf_ioctl,
200 VMW_IOCTL_DEF(VMW_FENCE_WAIT, vmw_fence_obj_wait_ioctl,
202 VMW_IOCTL_DEF(VMW_FENCE_SIGNALED,
203 vmw_fence_obj_signaled_ioctl,
205 VMW_IOCTL_DEF(VMW_FENCE_UNREF, vmw_fence_obj_unref_ioctl,
207 VMW_IOCTL_DEF(VMW_FENCE_EVENT, vmw_fence_event_ioctl,
209 VMW_IOCTL_DEF(VMW_GET_3D_CAP, vmw_get_cap_3d_ioctl,
212 /* these allow direct access to the framebuffers mark as master only */
213 VMW_IOCTL_DEF(VMW_PRESENT, vmw_present_ioctl,
214 DRM_MASTER | DRM_AUTH),
215 VMW_IOCTL_DEF(VMW_PRESENT_READBACK,
216 vmw_present_readback_ioctl,
217 DRM_MASTER | DRM_AUTH),
219 * The permissions of the below ioctl are overridden in
220 * vmw_generic_ioctl(). We require either
221 * DRM_MASTER or capable(CAP_SYS_ADMIN).
223 VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT,
224 vmw_kms_update_layout_ioctl,
226 VMW_IOCTL_DEF(VMW_CREATE_SHADER,
227 vmw_shader_define_ioctl,
229 VMW_IOCTL_DEF(VMW_UNREF_SHADER,
230 vmw_shader_destroy_ioctl,
232 VMW_IOCTL_DEF(VMW_GB_SURFACE_CREATE,
233 vmw_gb_surface_define_ioctl,
235 VMW_IOCTL_DEF(VMW_GB_SURFACE_REF,
236 vmw_gb_surface_reference_ioctl,
238 VMW_IOCTL_DEF(VMW_SYNCCPU,
239 vmw_user_bo_synccpu_ioctl,
241 VMW_IOCTL_DEF(VMW_CREATE_EXTENDED_CONTEXT,
242 vmw_extended_context_define_ioctl,
244 VMW_IOCTL_DEF(VMW_GB_SURFACE_CREATE_EXT,
245 vmw_gb_surface_define_ext_ioctl,
247 VMW_IOCTL_DEF(VMW_GB_SURFACE_REF_EXT,
248 vmw_gb_surface_reference_ext_ioctl,
250 VMW_IOCTL_DEF(VMW_MSG,
255 static const struct pci_device_id vmw_pci_id_list[] = {
256 {0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
259 MODULE_DEVICE_TABLE(pci, vmw_pci_id_list);
261 static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON);
262 static int vmw_force_iommu;
263 static int vmw_restrict_iommu;
264 static int vmw_force_coherent;
265 static int vmw_restrict_dma_mask;
266 static int vmw_assume_16bpp;
268 static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
269 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
272 MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev");
273 module_param_named(enable_fbdev, enable_fbdev, int, 0600);
274 MODULE_PARM_DESC(force_dma_api, "Force using the DMA API for TTM pages");
275 module_param_named(force_dma_api, vmw_force_iommu, int, 0600);
276 MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages");
277 module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600);
278 MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages");
279 module_param_named(force_coherent, vmw_force_coherent, int, 0600);
280 MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU");
281 module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600);
282 MODULE_PARM_DESC(assume_16bpp, "Assume 16-bpp when filtering modes");
283 module_param_named(assume_16bpp, vmw_assume_16bpp, int, 0600);
286 static void vmw_print_capabilities2(uint32_t capabilities2)
288 DRM_INFO("Capabilities2:\n");
289 if (capabilities2 & SVGA_CAP2_GROW_OTABLE)
290 DRM_INFO(" Grow oTable.\n");
291 if (capabilities2 & SVGA_CAP2_INTRA_SURFACE_COPY)
292 DRM_INFO(" IntraSurface copy.\n");
293 if (capabilities2 & SVGA_CAP2_DX3)
297 static void vmw_print_capabilities(uint32_t capabilities)
299 DRM_INFO("Capabilities:\n");
300 if (capabilities & SVGA_CAP_RECT_COPY)
301 DRM_INFO(" Rect copy.\n");
302 if (capabilities & SVGA_CAP_CURSOR)
303 DRM_INFO(" Cursor.\n");
304 if (capabilities & SVGA_CAP_CURSOR_BYPASS)
305 DRM_INFO(" Cursor bypass.\n");
306 if (capabilities & SVGA_CAP_CURSOR_BYPASS_2)
307 DRM_INFO(" Cursor bypass 2.\n");
308 if (capabilities & SVGA_CAP_8BIT_EMULATION)
309 DRM_INFO(" 8bit emulation.\n");
310 if (capabilities & SVGA_CAP_ALPHA_CURSOR)
311 DRM_INFO(" Alpha cursor.\n");
312 if (capabilities & SVGA_CAP_3D)
314 if (capabilities & SVGA_CAP_EXTENDED_FIFO)
315 DRM_INFO(" Extended Fifo.\n");
316 if (capabilities & SVGA_CAP_MULTIMON)
317 DRM_INFO(" Multimon.\n");
318 if (capabilities & SVGA_CAP_PITCHLOCK)
319 DRM_INFO(" Pitchlock.\n");
320 if (capabilities & SVGA_CAP_IRQMASK)
321 DRM_INFO(" Irq mask.\n");
322 if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)
323 DRM_INFO(" Display Topology.\n");
324 if (capabilities & SVGA_CAP_GMR)
326 if (capabilities & SVGA_CAP_TRACES)
327 DRM_INFO(" Traces.\n");
328 if (capabilities & SVGA_CAP_GMR2)
329 DRM_INFO(" GMR2.\n");
330 if (capabilities & SVGA_CAP_SCREEN_OBJECT_2)
331 DRM_INFO(" Screen Object 2.\n");
332 if (capabilities & SVGA_CAP_COMMAND_BUFFERS)
333 DRM_INFO(" Command Buffers.\n");
334 if (capabilities & SVGA_CAP_CMD_BUFFERS_2)
335 DRM_INFO(" Command Buffers 2.\n");
336 if (capabilities & SVGA_CAP_GBOBJECTS)
337 DRM_INFO(" Guest Backed Resources.\n");
338 if (capabilities & SVGA_CAP_DX)
339 DRM_INFO(" DX Features.\n");
340 if (capabilities & SVGA_CAP_HP_CMD_QUEUE)
341 DRM_INFO(" HP Command Queue.\n");
345 * vmw_dummy_query_bo_create - create a bo to hold a dummy query result
347 * @dev_priv: A device private structure.
349 * This function creates a small buffer object that holds the query
350 * result for dummy queries emitted as query barriers.
351 * The function will then map the first page and initialize a pending
352 * occlusion query result structure, Finally it will unmap the buffer.
353 * No interruptible waits are done within this function.
355 * Returns an error if bo creation or initialization fails.
357 static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv)
360 struct vmw_buffer_object *vbo;
361 struct ttm_bo_kmap_obj map;
362 volatile SVGA3dQueryResult *result;
366 * Create the vbo as pinned, so that a tryreserve will
367 * immediately succeed. This is because we're the only
368 * user of the bo currently.
370 vbo = kzalloc(sizeof(*vbo), GFP_KERNEL);
374 ret = vmw_bo_init(dev_priv, vbo, PAGE_SIZE,
375 &vmw_sys_ne_placement, false,
377 if (unlikely(ret != 0))
380 ret = ttm_bo_reserve(&vbo->base, false, true, NULL);
382 vmw_bo_pin_reserved(vbo, true);
384 ret = ttm_bo_kmap(&vbo->base, 0, 1, &map);
385 if (likely(ret == 0)) {
386 result = ttm_kmap_obj_virtual(&map, &dummy);
387 result->totalSize = sizeof(*result);
388 result->state = SVGA3D_QUERYSTATE_PENDING;
389 result->result32 = 0xff;
392 vmw_bo_pin_reserved(vbo, false);
393 ttm_bo_unreserve(&vbo->base);
395 if (unlikely(ret != 0)) {
396 DRM_ERROR("Dummy query buffer map failed.\n");
397 vmw_bo_unreference(&vbo);
399 dev_priv->dummy_query_bo = vbo;
405 * vmw_request_device_late - Perform late device setup
407 * @dev_priv: Pointer to device private.
409 * This function performs setup of otables and enables large command
410 * buffer submission. These tasks are split out to a separate function
411 * because it reverts vmw_release_device_early and is intended to be used
412 * by an error path in the hibernation code.
414 static int vmw_request_device_late(struct vmw_private *dev_priv)
418 if (dev_priv->has_mob) {
419 ret = vmw_otables_setup(dev_priv);
420 if (unlikely(ret != 0)) {
421 DRM_ERROR("Unable to initialize "
422 "guest Memory OBjects.\n");
427 if (dev_priv->cman) {
428 ret = vmw_cmdbuf_set_pool_size(dev_priv->cman,
431 struct vmw_cmdbuf_man *man = dev_priv->cman;
433 dev_priv->cman = NULL;
434 vmw_cmdbuf_man_destroy(man);
441 static int vmw_request_device(struct vmw_private *dev_priv)
445 ret = vmw_fifo_init(dev_priv, &dev_priv->fifo);
446 if (unlikely(ret != 0)) {
447 DRM_ERROR("Unable to initialize FIFO.\n");
450 vmw_fence_fifo_up(dev_priv->fman);
451 dev_priv->cman = vmw_cmdbuf_man_create(dev_priv);
452 if (IS_ERR(dev_priv->cman)) {
453 dev_priv->cman = NULL;
454 dev_priv->sm_type = VMW_SM_LEGACY;
457 ret = vmw_request_device_late(dev_priv);
461 ret = vmw_dummy_query_bo_create(dev_priv);
462 if (unlikely(ret != 0))
463 goto out_no_query_bo;
469 vmw_cmdbuf_remove_pool(dev_priv->cman);
470 if (dev_priv->has_mob) {
471 (void) ttm_bo_evict_mm(&dev_priv->bdev, VMW_PL_MOB);
472 vmw_otables_takedown(dev_priv);
475 vmw_cmdbuf_man_destroy(dev_priv->cman);
477 vmw_fence_fifo_down(dev_priv->fman);
478 vmw_fifo_release(dev_priv, &dev_priv->fifo);
483 * vmw_release_device_early - Early part of fifo takedown.
485 * @dev_priv: Pointer to device private struct.
487 * This is the first part of command submission takedown, to be called before
488 * buffer management is taken down.
490 static void vmw_release_device_early(struct vmw_private *dev_priv)
493 * Previous destructions should've released
497 BUG_ON(dev_priv->pinned_bo != NULL);
499 vmw_bo_unreference(&dev_priv->dummy_query_bo);
501 vmw_cmdbuf_remove_pool(dev_priv->cman);
503 if (dev_priv->has_mob) {
504 ttm_bo_evict_mm(&dev_priv->bdev, VMW_PL_MOB);
505 vmw_otables_takedown(dev_priv);
510 * vmw_release_device_late - Late part of fifo takedown.
512 * @dev_priv: Pointer to device private struct.
514 * This is the last part of the command submission takedown, to be called when
515 * command submission is no longer needed. It may wait on pending fences.
517 static void vmw_release_device_late(struct vmw_private *dev_priv)
519 vmw_fence_fifo_down(dev_priv->fman);
521 vmw_cmdbuf_man_destroy(dev_priv->cman);
523 vmw_fifo_release(dev_priv, &dev_priv->fifo);
527 * Sets the initial_[width|height] fields on the given vmw_private.
529 * It does so by reading SVGA_REG_[WIDTH|HEIGHT] regs and then
530 * clamping the value to fb_max_[width|height] fields and the
531 * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
532 * If the values appear to be invalid, set them to
533 * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
535 static void vmw_get_initial_size(struct vmw_private *dev_priv)
540 width = vmw_read(dev_priv, SVGA_REG_WIDTH);
541 height = vmw_read(dev_priv, SVGA_REG_HEIGHT);
543 width = max_t(uint32_t, width, VMW_MIN_INITIAL_WIDTH);
544 height = max_t(uint32_t, height, VMW_MIN_INITIAL_HEIGHT);
546 if (width > dev_priv->fb_max_width ||
547 height > dev_priv->fb_max_height) {
550 * This is a host error and shouldn't occur.
553 width = VMW_MIN_INITIAL_WIDTH;
554 height = VMW_MIN_INITIAL_HEIGHT;
557 dev_priv->initial_width = width;
558 dev_priv->initial_height = height;
562 * vmw_dma_select_mode - Determine how DMA mappings should be set up for this
565 * @dev_priv: Pointer to a struct vmw_private
567 * This functions tries to determine what actions need to be taken by the
568 * driver to make system pages visible to the device.
569 * If this function decides that DMA is not possible, it returns -EINVAL.
570 * The driver may then try to disable features of the device that require
573 static int vmw_dma_select_mode(struct vmw_private *dev_priv)
575 static const char *names[vmw_dma_map_max] = {
576 [vmw_dma_phys] = "Using physical TTM page addresses.",
577 [vmw_dma_alloc_coherent] = "Using coherent TTM pages.",
578 [vmw_dma_map_populate] = "Caching DMA mappings.",
579 [vmw_dma_map_bind] = "Giving up DMA mappings early."};
581 /* TTM currently doesn't fully support SEV encryption. */
582 if (mem_encrypt_active())
585 if (vmw_force_coherent)
586 dev_priv->map_mode = vmw_dma_alloc_coherent;
587 else if (vmw_restrict_iommu)
588 dev_priv->map_mode = vmw_dma_map_bind;
590 dev_priv->map_mode = vmw_dma_map_populate;
592 if (!IS_ENABLED(CONFIG_DRM_TTM_DMA_PAGE_POOL) &&
593 (dev_priv->map_mode == vmw_dma_alloc_coherent))
596 DRM_INFO("DMA map mode: %s\n", names[dev_priv->map_mode]);
601 * vmw_dma_masks - set required page- and dma masks
603 * @dev: Pointer to struct drm-device
605 * With 32-bit we can only handle 32 bit PFNs. Optionally set that
606 * restriction also for 64-bit systems.
608 static int vmw_dma_masks(struct vmw_private *dev_priv)
610 struct drm_device *dev = dev_priv->dev;
613 ret = dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64));
614 if (dev_priv->map_mode != vmw_dma_phys &&
615 (sizeof(unsigned long) == 4 || vmw_restrict_dma_mask)) {
616 DRM_INFO("Restricting DMA addresses to 44 bits.\n");
617 return dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(44));
623 static int vmw_vram_manager_init(struct vmw_private *dev_priv)
626 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
627 ret = vmw_thp_init(dev_priv);
629 struct ttm_mem_type_manager *man = &dev_priv->bdev.man[TTM_PL_VRAM];
631 man->available_caching = TTM_PL_FLAG_CACHED;
632 man->default_caching = TTM_PL_FLAG_CACHED;
634 ret = ttm_range_man_init(&dev_priv->bdev, man,
635 dev_priv->vram_size >> PAGE_SHIFT);
637 dev_priv->bdev.man[TTM_PL_VRAM].use_type = false;
641 static void vmw_vram_manager_fini(struct vmw_private *dev_priv)
643 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
644 vmw_thp_fini(dev_priv);
646 ttm_bo_man_fini(&dev_priv->bdev,
647 &dev_priv->bdev.man[TTM_PL_VRAM]);
651 static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
653 struct vmw_private *dev_priv;
657 bool refuse_dma = false;
658 char host_log[100] = {0};
660 dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
661 if (unlikely(!dev_priv)) {
662 DRM_ERROR("Failed allocating a device private struct.\n");
666 pci_set_master(dev->pdev);
669 dev_priv->vmw_chipset = chipset;
670 dev_priv->last_read_seqno = (uint32_t) -100;
671 mutex_init(&dev_priv->cmdbuf_mutex);
672 mutex_init(&dev_priv->release_mutex);
673 mutex_init(&dev_priv->binding_mutex);
674 mutex_init(&dev_priv->global_kms_state_mutex);
675 ttm_lock_init(&dev_priv->reservation_sem);
676 spin_lock_init(&dev_priv->resource_lock);
677 spin_lock_init(&dev_priv->hw_lock);
678 spin_lock_init(&dev_priv->waiter_lock);
679 spin_lock_init(&dev_priv->cap_lock);
680 spin_lock_init(&dev_priv->svga_lock);
681 spin_lock_init(&dev_priv->cursor_lock);
683 for (i = vmw_res_context; i < vmw_res_max; ++i) {
684 idr_init(&dev_priv->res_idr[i]);
685 INIT_LIST_HEAD(&dev_priv->res_lru[i]);
688 init_waitqueue_head(&dev_priv->fence_queue);
689 init_waitqueue_head(&dev_priv->fifo_queue);
690 dev_priv->fence_queue_waiters = 0;
691 dev_priv->fifo_queue_waiters = 0;
693 dev_priv->used_memory_size = 0;
695 dev_priv->io_start = pci_resource_start(dev->pdev, 0);
696 dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
697 dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
699 dev_priv->assume_16bpp = !!vmw_assume_16bpp;
701 dev_priv->enable_fb = enable_fbdev;
703 vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
704 svga_id = vmw_read(dev_priv, SVGA_REG_ID);
705 if (svga_id != SVGA_ID_2) {
707 DRM_ERROR("Unsupported SVGA ID 0x%x\n", svga_id);
711 dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
713 if (dev_priv->capabilities & SVGA_CAP_CAP2_REGISTER) {
714 dev_priv->capabilities2 = vmw_read(dev_priv, SVGA_REG_CAP2);
718 ret = vmw_dma_select_mode(dev_priv);
719 if (unlikely(ret != 0)) {
720 DRM_INFO("Restricting capabilities since DMA not available.\n");
722 if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS)
723 DRM_INFO("Disabling 3D acceleration.\n");
726 dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
727 dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
728 dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
729 dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
731 vmw_get_initial_size(dev_priv);
733 if (dev_priv->capabilities & SVGA_CAP_GMR2) {
734 dev_priv->max_gmr_ids =
735 vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
736 dev_priv->max_gmr_pages =
737 vmw_read(dev_priv, SVGA_REG_GMRS_MAX_PAGES);
738 dev_priv->memory_size =
739 vmw_read(dev_priv, SVGA_REG_MEMORY_SIZE);
740 dev_priv->memory_size -= dev_priv->vram_size;
743 * An arbitrary limit of 512MiB on surface
744 * memory. But all HWV8 hardware supports GMR2.
746 dev_priv->memory_size = 512*1024*1024;
748 dev_priv->max_mob_pages = 0;
749 dev_priv->max_mob_size = 0;
750 if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
753 if (dev_priv->capabilities2 & SVGA_CAP2_GB_MEMSIZE_2)
754 mem_size = vmw_read(dev_priv,
755 SVGA_REG_GBOBJECT_MEM_SIZE_KB);
759 SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB);
762 * Workaround for low memory 2D VMs to compensate for the
763 * allocation taken by fbdev
765 if (!(dev_priv->capabilities & SVGA_CAP_3D))
768 dev_priv->max_mob_pages = mem_size * 1024 / PAGE_SIZE;
769 dev_priv->prim_bb_mem =
771 SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM);
772 dev_priv->max_mob_size =
773 vmw_read(dev_priv, SVGA_REG_MOB_MAX_SIZE);
774 dev_priv->stdu_max_width =
775 vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_WIDTH);
776 dev_priv->stdu_max_height =
777 vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_HEIGHT);
779 vmw_write(dev_priv, SVGA_REG_DEV_CAP,
780 SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH);
781 dev_priv->texture_max_width = vmw_read(dev_priv,
783 vmw_write(dev_priv, SVGA_REG_DEV_CAP,
784 SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT);
785 dev_priv->texture_max_height = vmw_read(dev_priv,
788 dev_priv->texture_max_width = 8192;
789 dev_priv->texture_max_height = 8192;
790 dev_priv->prim_bb_mem = dev_priv->vram_size;
793 vmw_print_capabilities(dev_priv->capabilities);
794 if (dev_priv->capabilities & SVGA_CAP_CAP2_REGISTER)
795 vmw_print_capabilities2(dev_priv->capabilities2);
797 ret = vmw_dma_masks(dev_priv);
798 if (unlikely(ret != 0))
801 dma_set_max_seg_size(dev->dev, min_t(unsigned int, U32_MAX & PAGE_MASK,
802 SCATTERLIST_MAX_SEGMENT));
804 if (dev_priv->capabilities & SVGA_CAP_GMR2) {
805 DRM_INFO("Max GMR ids is %u\n",
806 (unsigned)dev_priv->max_gmr_ids);
807 DRM_INFO("Max number of GMR pages is %u\n",
808 (unsigned)dev_priv->max_gmr_pages);
809 DRM_INFO("Max dedicated hypervisor surface memory is %u kiB\n",
810 (unsigned)dev_priv->memory_size / 1024);
812 DRM_INFO("Maximum display memory size is %u kiB\n",
813 dev_priv->prim_bb_mem / 1024);
814 DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
815 dev_priv->vram_start, dev_priv->vram_size / 1024);
816 DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
817 dev_priv->mmio_start, dev_priv->mmio_size / 1024);
819 dev_priv->mmio_virt = memremap(dev_priv->mmio_start,
820 dev_priv->mmio_size, MEMREMAP_WB);
822 if (unlikely(dev_priv->mmio_virt == NULL)) {
824 DRM_ERROR("Failed mapping MMIO.\n");
828 /* Need mmio memory to check for fifo pitchlock cap. */
829 if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
830 !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
831 !vmw_fifo_have_pitchlock(dev_priv)) {
833 DRM_ERROR("Hardware has no pitchlock\n");
837 dev_priv->tdev = ttm_object_device_init(&ttm_mem_glob, 12,
838 &vmw_prime_dmabuf_ops);
840 if (unlikely(dev_priv->tdev == NULL)) {
841 DRM_ERROR("Unable to initialize TTM object management.\n");
846 dev->dev_private = dev_priv;
848 ret = pci_request_regions(dev->pdev, "vmwgfx probe");
849 dev_priv->stealth = (ret != 0);
850 if (dev_priv->stealth) {
852 * Request at least the mmio PCI resource.
855 DRM_INFO("It appears like vesafb is loaded. "
856 "Ignore above error if any.\n");
857 ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
858 if (unlikely(ret != 0)) {
859 DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
864 if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
865 ret = vmw_irq_install(dev, dev->pdev->irq);
867 DRM_ERROR("Failed installing irq: %d\n", ret);
872 dev_priv->fman = vmw_fence_manager_init(dev_priv);
873 if (unlikely(dev_priv->fman == NULL)) {
878 drm_vma_offset_manager_init(&dev_priv->vma_manager,
879 DRM_FILE_PAGE_OFFSET_START,
880 DRM_FILE_PAGE_OFFSET_SIZE);
881 ret = ttm_bo_device_init(&dev_priv->bdev,
883 dev->anon_inode->i_mapping,
884 &dev_priv->vma_manager,
886 if (unlikely(ret != 0)) {
887 DRM_ERROR("Failed initializing TTM buffer object driver.\n");
890 dev_priv->bdev.man[TTM_PL_SYSTEM].available_caching =
894 * Enable VRAM, but initially don't use it until SVGA is enabled and
898 ret = vmw_vram_manager_init(dev_priv);
899 if (unlikely(ret != 0)) {
900 DRM_ERROR("Failed initializing memory manager for VRAM.\n");
905 * "Guest Memory Regions" is an aperture like feature with
906 * one slot per bo. There is an upper limit of the number of
907 * slots as well as the bo size.
909 dev_priv->has_gmr = true;
910 /* TODO: This is most likely not correct */
911 if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) ||
913 vmw_gmrid_man_init(dev_priv, VMW_PL_GMR) != 0) {
914 DRM_INFO("No GMR memory available. "
915 "Graphics memory resources are very limited.\n");
916 dev_priv->has_gmr = false;
919 if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS && !refuse_dma) {
920 dev_priv->has_mob = true;
922 if (vmw_gmrid_man_init(dev_priv, VMW_PL_MOB) != 0) {
923 DRM_INFO("No MOB memory available. "
924 "3D will be disabled.\n");
925 dev_priv->has_mob = false;
929 if (dev_priv->has_mob && (dev_priv->capabilities & SVGA_CAP_DX)) {
930 spin_lock(&dev_priv->cap_lock);
931 vmw_write(dev_priv, SVGA_REG_DEV_CAP, SVGA3D_DEVCAP_DXCONTEXT);
932 if (vmw_read(dev_priv, SVGA_REG_DEV_CAP))
933 dev_priv->sm_type = VMW_SM_4;
934 spin_unlock(&dev_priv->cap_lock);
937 vmw_validation_mem_init_ttm(dev_priv, VMWGFX_VALIDATION_MEM_GRAN);
939 /* SVGA_CAP2_DX2 (DefineGBSurface_v3) is needed for SM4_1 support */
940 if (has_sm4_context(dev_priv) &&
941 (dev_priv->capabilities2 & SVGA_CAP2_DX2)) {
942 vmw_write(dev_priv, SVGA_REG_DEV_CAP, SVGA3D_DEVCAP_SM41);
944 if (vmw_read(dev_priv, SVGA_REG_DEV_CAP))
945 dev_priv->sm_type = VMW_SM_4_1;
947 if (has_sm4_1_context(dev_priv) &&
948 (dev_priv->capabilities2 & SVGA_CAP2_DX3)) {
949 vmw_write(dev_priv, SVGA_REG_DEV_CAP, SVGA3D_DEVCAP_SM5);
950 if (vmw_read(dev_priv, SVGA_REG_DEV_CAP))
951 dev_priv->sm_type = VMW_SM_5;
955 ret = vmw_kms_init(dev_priv);
956 if (unlikely(ret != 0))
958 vmw_overlay_init(dev_priv);
960 ret = vmw_request_device(dev_priv);
964 DRM_INFO("Atomic: %s\n", (dev->driver->driver_features & DRIVER_ATOMIC)
966 if (dev_priv->sm_type == VMW_SM_5)
967 DRM_INFO("SM5 support available.\n");
968 if (dev_priv->sm_type == VMW_SM_4_1)
969 DRM_INFO("SM4_1 support available.\n");
970 if (dev_priv->sm_type == VMW_SM_4)
971 DRM_INFO("SM4 support available.\n");
973 snprintf(host_log, sizeof(host_log), "vmwgfx: %s-%s",
974 VMWGFX_REPO, VMWGFX_GIT_VERSION);
975 vmw_host_log(host_log);
977 memset(host_log, 0, sizeof(host_log));
978 snprintf(host_log, sizeof(host_log), "vmwgfx: Module Version: %d.%d.%d",
979 VMWGFX_DRIVER_MAJOR, VMWGFX_DRIVER_MINOR,
980 VMWGFX_DRIVER_PATCHLEVEL);
981 vmw_host_log(host_log);
983 if (dev_priv->enable_fb) {
984 vmw_fifo_resource_inc(dev_priv);
985 vmw_svga_enable(dev_priv);
986 vmw_fb_init(dev_priv);
989 dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
990 register_pm_notifier(&dev_priv->pm_nb);
995 vmw_overlay_close(dev_priv);
996 vmw_kms_close(dev_priv);
998 if (dev_priv->has_mob)
999 vmw_gmrid_man_fini(dev_priv, VMW_PL_MOB);
1000 if (dev_priv->has_gmr)
1001 vmw_gmrid_man_fini(dev_priv, VMW_PL_GMR);
1002 vmw_vram_manager_fini(dev_priv);
1004 (void)ttm_bo_device_release(&dev_priv->bdev);
1006 vmw_fence_manager_takedown(dev_priv->fman);
1008 if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
1009 vmw_irq_uninstall(dev_priv->dev);
1011 if (dev_priv->stealth)
1012 pci_release_region(dev->pdev, 2);
1014 pci_release_regions(dev->pdev);
1016 ttm_object_device_release(&dev_priv->tdev);
1018 memunmap(dev_priv->mmio_virt);
1020 for (i = vmw_res_context; i < vmw_res_max; ++i)
1021 idr_destroy(&dev_priv->res_idr[i]);
1023 if (dev_priv->ctx.staged_bindings)
1024 vmw_binding_state_free(dev_priv->ctx.staged_bindings);
1029 static void vmw_driver_unload(struct drm_device *dev)
1031 struct vmw_private *dev_priv = vmw_priv(dev);
1032 enum vmw_res_type i;
1034 unregister_pm_notifier(&dev_priv->pm_nb);
1036 if (dev_priv->ctx.res_ht_initialized)
1037 drm_ht_remove(&dev_priv->ctx.res_ht);
1038 vfree(dev_priv->ctx.cmd_bounce);
1039 if (dev_priv->enable_fb) {
1040 vmw_fb_off(dev_priv);
1041 vmw_fb_close(dev_priv);
1042 vmw_fifo_resource_dec(dev_priv);
1043 vmw_svga_disable(dev_priv);
1046 vmw_kms_close(dev_priv);
1047 vmw_overlay_close(dev_priv);
1049 if (dev_priv->has_gmr)
1050 vmw_gmrid_man_fini(dev_priv, VMW_PL_GMR);
1052 vmw_release_device_early(dev_priv);
1053 if (dev_priv->has_mob)
1054 vmw_gmrid_man_fini(dev_priv, VMW_PL_MOB);
1055 vmw_vram_manager_fini(dev_priv);
1056 (void) ttm_bo_device_release(&dev_priv->bdev);
1057 drm_vma_offset_manager_destroy(&dev_priv->vma_manager);
1058 vmw_release_device_late(dev_priv);
1059 vmw_fence_manager_takedown(dev_priv->fman);
1060 if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
1061 vmw_irq_uninstall(dev_priv->dev);
1062 if (dev_priv->stealth)
1063 pci_release_region(dev->pdev, 2);
1065 pci_release_regions(dev->pdev);
1067 ttm_object_device_release(&dev_priv->tdev);
1068 memunmap(dev_priv->mmio_virt);
1069 if (dev_priv->ctx.staged_bindings)
1070 vmw_binding_state_free(dev_priv->ctx.staged_bindings);
1072 for (i = vmw_res_context; i < vmw_res_max; ++i)
1073 idr_destroy(&dev_priv->res_idr[i]);
1078 static void vmw_postclose(struct drm_device *dev,
1079 struct drm_file *file_priv)
1081 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
1083 ttm_object_file_release(&vmw_fp->tfile);
1087 static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
1089 struct vmw_private *dev_priv = vmw_priv(dev);
1090 struct vmw_fpriv *vmw_fp;
1093 vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
1094 if (unlikely(!vmw_fp))
1097 vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
1098 if (unlikely(vmw_fp->tfile == NULL))
1101 file_priv->driver_priv = vmw_fp;
1110 static long vmw_generic_ioctl(struct file *filp, unsigned int cmd,
1112 long (*ioctl_func)(struct file *, unsigned int,
1115 struct drm_file *file_priv = filp->private_data;
1116 struct drm_device *dev = file_priv->minor->dev;
1117 unsigned int nr = DRM_IOCTL_NR(cmd);
1121 * Do extra checking on driver private ioctls.
1124 if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
1125 && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
1126 const struct drm_ioctl_desc *ioctl =
1127 &vmw_ioctls[nr - DRM_COMMAND_BASE];
1129 if (nr == DRM_COMMAND_BASE + DRM_VMW_EXECBUF) {
1130 return ioctl_func(filp, cmd, arg);
1131 } else if (nr == DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT) {
1132 if (!drm_is_current_master(file_priv) &&
1133 !capable(CAP_SYS_ADMIN))
1137 if (unlikely(ioctl->cmd != cmd))
1138 goto out_io_encoding;
1140 flags = ioctl->flags;
1141 } else if (!drm_ioctl_flags(nr, &flags))
1144 return ioctl_func(filp, cmd, arg);
1147 DRM_ERROR("Invalid command format, ioctl %d\n",
1148 nr - DRM_COMMAND_BASE);
1153 static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
1156 return vmw_generic_ioctl(filp, cmd, arg, &drm_ioctl);
1159 #ifdef CONFIG_COMPAT
1160 static long vmw_compat_ioctl(struct file *filp, unsigned int cmd,
1163 return vmw_generic_ioctl(filp, cmd, arg, &drm_compat_ioctl);
1167 static void vmw_master_set(struct drm_device *dev,
1168 struct drm_file *file_priv,
1172 * Inform a new master that the layout may have changed while
1176 drm_sysfs_hotplug_event(dev);
1179 static void vmw_master_drop(struct drm_device *dev,
1180 struct drm_file *file_priv)
1182 struct vmw_private *dev_priv = vmw_priv(dev);
1184 vmw_kms_legacy_hotspot_clear(dev_priv);
1185 if (!dev_priv->enable_fb)
1186 vmw_svga_disable(dev_priv);
1190 * __vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1192 * @dev_priv: Pointer to device private struct.
1193 * Needs the reservation sem to be held in non-exclusive mode.
1195 static void __vmw_svga_enable(struct vmw_private *dev_priv)
1197 spin_lock(&dev_priv->svga_lock);
1198 if (!dev_priv->bdev.man[TTM_PL_VRAM].use_type) {
1199 vmw_write(dev_priv, SVGA_REG_ENABLE, SVGA_REG_ENABLE);
1200 dev_priv->bdev.man[TTM_PL_VRAM].use_type = true;
1202 spin_unlock(&dev_priv->svga_lock);
1206 * vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1208 * @dev_priv: Pointer to device private struct.
1210 void vmw_svga_enable(struct vmw_private *dev_priv)
1212 (void) ttm_read_lock(&dev_priv->reservation_sem, false);
1213 __vmw_svga_enable(dev_priv);
1214 ttm_read_unlock(&dev_priv->reservation_sem);
1218 * __vmw_svga_disable - Disable SVGA mode and use of VRAM.
1220 * @dev_priv: Pointer to device private struct.
1221 * Needs the reservation sem to be held in exclusive mode.
1222 * Will not empty VRAM. VRAM must be emptied by caller.
1224 static void __vmw_svga_disable(struct vmw_private *dev_priv)
1226 spin_lock(&dev_priv->svga_lock);
1227 if (dev_priv->bdev.man[TTM_PL_VRAM].use_type) {
1228 dev_priv->bdev.man[TTM_PL_VRAM].use_type = false;
1229 vmw_write(dev_priv, SVGA_REG_ENABLE,
1230 SVGA_REG_ENABLE_HIDE |
1231 SVGA_REG_ENABLE_ENABLE);
1233 spin_unlock(&dev_priv->svga_lock);
1237 * vmw_svga_disable - Disable SVGA_MODE, and use of VRAM. Keep the fifo
1240 * @dev_priv: Pointer to device private struct.
1243 void vmw_svga_disable(struct vmw_private *dev_priv)
1246 * Disabling SVGA will turn off device modesetting capabilities, so
1247 * notify KMS about that so that it doesn't cache atomic state that
1248 * isn't valid anymore, for example crtcs turned on.
1249 * Strictly we'd want to do this under the SVGA lock (or an SVGA mutex),
1250 * but vmw_kms_lost_device() takes the reservation sem and thus we'll
1251 * end up with lock order reversal. Thus, a master may actually perform
1252 * a new modeset just after we call vmw_kms_lost_device() and race with
1253 * vmw_svga_disable(), but that should at worst cause atomic KMS state
1254 * to be inconsistent with the device, causing modesetting problems.
1257 vmw_kms_lost_device(dev_priv->dev);
1258 ttm_write_lock(&dev_priv->reservation_sem, false);
1259 spin_lock(&dev_priv->svga_lock);
1260 if (dev_priv->bdev.man[TTM_PL_VRAM].use_type) {
1261 dev_priv->bdev.man[TTM_PL_VRAM].use_type = false;
1262 spin_unlock(&dev_priv->svga_lock);
1263 if (ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM))
1264 DRM_ERROR("Failed evicting VRAM buffers.\n");
1265 vmw_write(dev_priv, SVGA_REG_ENABLE,
1266 SVGA_REG_ENABLE_HIDE |
1267 SVGA_REG_ENABLE_ENABLE);
1269 spin_unlock(&dev_priv->svga_lock);
1270 ttm_write_unlock(&dev_priv->reservation_sem);
1273 static void vmw_remove(struct pci_dev *pdev)
1275 struct drm_device *dev = pci_get_drvdata(pdev);
1277 drm_dev_unregister(dev);
1278 vmw_driver_unload(dev);
1280 pci_disable_device(pdev);
1283 static unsigned long
1284 vmw_get_unmapped_area(struct file *file, unsigned long uaddr,
1285 unsigned long len, unsigned long pgoff,
1286 unsigned long flags)
1288 struct drm_file *file_priv = file->private_data;
1289 struct vmw_private *dev_priv = vmw_priv(file_priv->minor->dev);
1291 return drm_get_unmapped_area(file, uaddr, len, pgoff, flags,
1292 &dev_priv->vma_manager);
1295 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
1298 struct vmw_private *dev_priv =
1299 container_of(nb, struct vmw_private, pm_nb);
1302 case PM_HIBERNATION_PREPARE:
1304 * Take the reservation sem in write mode, which will make sure
1305 * there are no other processes holding a buffer object
1306 * reservation, meaning we should be able to evict all buffer
1307 * objects if needed.
1308 * Once user-space processes have been frozen, we can release
1311 ttm_suspend_lock(&dev_priv->reservation_sem);
1312 dev_priv->suspend_locked = true;
1314 case PM_POST_HIBERNATION:
1315 case PM_POST_RESTORE:
1316 if (READ_ONCE(dev_priv->suspend_locked)) {
1317 dev_priv->suspend_locked = false;
1318 ttm_suspend_unlock(&dev_priv->reservation_sem);
1327 static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
1329 struct drm_device *dev = pci_get_drvdata(pdev);
1330 struct vmw_private *dev_priv = vmw_priv(dev);
1332 if (dev_priv->refuse_hibernation)
1335 pci_save_state(pdev);
1336 pci_disable_device(pdev);
1337 pci_set_power_state(pdev, PCI_D3hot);
1341 static int vmw_pci_resume(struct pci_dev *pdev)
1343 pci_set_power_state(pdev, PCI_D0);
1344 pci_restore_state(pdev);
1345 return pci_enable_device(pdev);
1348 static int vmw_pm_suspend(struct device *kdev)
1350 struct pci_dev *pdev = to_pci_dev(kdev);
1351 struct pm_message dummy;
1355 return vmw_pci_suspend(pdev, dummy);
1358 static int vmw_pm_resume(struct device *kdev)
1360 struct pci_dev *pdev = to_pci_dev(kdev);
1362 return vmw_pci_resume(pdev);
1365 static int vmw_pm_freeze(struct device *kdev)
1367 struct pci_dev *pdev = to_pci_dev(kdev);
1368 struct drm_device *dev = pci_get_drvdata(pdev);
1369 struct vmw_private *dev_priv = vmw_priv(dev);
1373 * Unlock for vmw_kms_suspend.
1374 * No user-space processes should be running now.
1376 ttm_suspend_unlock(&dev_priv->reservation_sem);
1377 ret = vmw_kms_suspend(dev_priv->dev);
1379 ttm_suspend_lock(&dev_priv->reservation_sem);
1380 DRM_ERROR("Failed to freeze modesetting.\n");
1383 if (dev_priv->enable_fb)
1384 vmw_fb_off(dev_priv);
1386 ttm_suspend_lock(&dev_priv->reservation_sem);
1387 vmw_execbuf_release_pinned_bo(dev_priv);
1388 vmw_resource_evict_all(dev_priv);
1389 vmw_release_device_early(dev_priv);
1390 ttm_bo_swapout_all(&dev_priv->bdev);
1391 if (dev_priv->enable_fb)
1392 vmw_fifo_resource_dec(dev_priv);
1393 if (atomic_read(&dev_priv->num_fifo_resources) != 0) {
1394 DRM_ERROR("Can't hibernate while 3D resources are active.\n");
1395 if (dev_priv->enable_fb)
1396 vmw_fifo_resource_inc(dev_priv);
1397 WARN_ON(vmw_request_device_late(dev_priv));
1398 dev_priv->suspend_locked = false;
1399 ttm_suspend_unlock(&dev_priv->reservation_sem);
1400 if (dev_priv->suspend_state)
1401 vmw_kms_resume(dev);
1402 if (dev_priv->enable_fb)
1403 vmw_fb_on(dev_priv);
1407 vmw_fence_fifo_down(dev_priv->fman);
1408 __vmw_svga_disable(dev_priv);
1410 vmw_release_device_late(dev_priv);
1414 static int vmw_pm_restore(struct device *kdev)
1416 struct pci_dev *pdev = to_pci_dev(kdev);
1417 struct drm_device *dev = pci_get_drvdata(pdev);
1418 struct vmw_private *dev_priv = vmw_priv(dev);
1421 vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
1422 (void) vmw_read(dev_priv, SVGA_REG_ID);
1424 if (dev_priv->enable_fb)
1425 vmw_fifo_resource_inc(dev_priv);
1427 ret = vmw_request_device(dev_priv);
1431 if (dev_priv->enable_fb)
1432 __vmw_svga_enable(dev_priv);
1434 vmw_fence_fifo_up(dev_priv->fman);
1435 dev_priv->suspend_locked = false;
1436 ttm_suspend_unlock(&dev_priv->reservation_sem);
1437 if (dev_priv->suspend_state)
1438 vmw_kms_resume(dev_priv->dev);
1440 if (dev_priv->enable_fb)
1441 vmw_fb_on(dev_priv);
1446 static const struct dev_pm_ops vmw_pm_ops = {
1447 .freeze = vmw_pm_freeze,
1448 .thaw = vmw_pm_restore,
1449 .restore = vmw_pm_restore,
1450 .suspend = vmw_pm_suspend,
1451 .resume = vmw_pm_resume,
1454 static const struct file_operations vmwgfx_driver_fops = {
1455 .owner = THIS_MODULE,
1457 .release = drm_release,
1458 .unlocked_ioctl = vmw_unlocked_ioctl,
1460 .poll = vmw_fops_poll,
1461 .read = vmw_fops_read,
1462 #if defined(CONFIG_COMPAT)
1463 .compat_ioctl = vmw_compat_ioctl,
1465 .llseek = noop_llseek,
1466 .get_unmapped_area = vmw_get_unmapped_area,
1469 static struct drm_driver driver = {
1471 DRIVER_MODESET | DRIVER_RENDER | DRIVER_ATOMIC,
1472 .ioctls = vmw_ioctls,
1473 .num_ioctls = ARRAY_SIZE(vmw_ioctls),
1474 .master_set = vmw_master_set,
1475 .master_drop = vmw_master_drop,
1476 .open = vmw_driver_open,
1477 .postclose = vmw_postclose,
1479 .dumb_create = vmw_dumb_create,
1480 .dumb_map_offset = vmw_dumb_map_offset,
1481 .dumb_destroy = vmw_dumb_destroy,
1483 .prime_fd_to_handle = vmw_prime_fd_to_handle,
1484 .prime_handle_to_fd = vmw_prime_handle_to_fd,
1486 .fops = &vmwgfx_driver_fops,
1487 .name = VMWGFX_DRIVER_NAME,
1488 .desc = VMWGFX_DRIVER_DESC,
1489 .date = VMWGFX_DRIVER_DATE,
1490 .major = VMWGFX_DRIVER_MAJOR,
1491 .minor = VMWGFX_DRIVER_MINOR,
1492 .patchlevel = VMWGFX_DRIVER_PATCHLEVEL
1495 static struct pci_driver vmw_pci_driver = {
1496 .name = VMWGFX_DRIVER_NAME,
1497 .id_table = vmw_pci_id_list,
1499 .remove = vmw_remove,
1505 static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1507 struct drm_device *dev;
1510 ret = pci_enable_device(pdev);
1514 dev = drm_dev_alloc(&driver, &pdev->dev);
1517 goto err_pci_disable_device;
1521 pci_set_drvdata(pdev, dev);
1523 ret = vmw_driver_load(dev, ent->driver_data);
1525 goto err_drm_dev_put;
1527 ret = drm_dev_register(dev, ent->driver_data);
1529 goto err_vmw_driver_unload;
1533 err_vmw_driver_unload:
1534 vmw_driver_unload(dev);
1537 err_pci_disable_device:
1538 pci_disable_device(pdev);
1542 static int __init vmwgfx_init(void)
1546 if (vgacon_text_force())
1549 ret = pci_register_driver(&vmw_pci_driver);
1551 DRM_ERROR("Failed initializing DRM.\n");
1555 static void __exit vmwgfx_exit(void)
1557 pci_unregister_driver(&vmw_pci_driver);
1560 module_init(vmwgfx_init);
1561 module_exit(vmwgfx_exit);
1563 MODULE_AUTHOR("VMware Inc. and others");
1564 MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
1565 MODULE_LICENSE("GPL and additional rights");
1566 MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "."
1567 __stringify(VMWGFX_DRIVER_MINOR) "."
1568 __stringify(VMWGFX_DRIVER_PATCHLEVEL) "."