1 /**************************************************************************
3 * Copyright © 2009-2015 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 "vmwgfx_drv.h"
29 #include <drm/vmwgfx_drm.h>
30 #include "vmwgfx_kms.h"
31 #include "device_include/svga3d_caps.h"
33 struct svga_3d_compat_cap {
34 SVGA3dCapsRecordHeader header;
35 SVGA3dCapPair pairs[SVGA3D_DEVCAP_MAX];
38 int vmw_getparam_ioctl(struct drm_device *dev, void *data,
39 struct drm_file *file_priv)
41 struct vmw_private *dev_priv = vmw_priv(dev);
42 struct drm_vmw_getparam_arg *param =
43 (struct drm_vmw_getparam_arg *)data;
44 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
46 switch (param->param) {
47 case DRM_VMW_PARAM_NUM_STREAMS:
48 param->value = vmw_overlay_num_overlays(dev_priv);
50 case DRM_VMW_PARAM_NUM_FREE_STREAMS:
51 param->value = vmw_overlay_num_free_overlays(dev_priv);
53 case DRM_VMW_PARAM_3D:
54 param->value = vmw_fifo_have_3d(dev_priv) ? 1 : 0;
56 case DRM_VMW_PARAM_HW_CAPS:
57 param->value = dev_priv->capabilities;
59 case DRM_VMW_PARAM_FIFO_CAPS:
60 param->value = dev_priv->fifo.capabilities;
62 case DRM_VMW_PARAM_MAX_FB_SIZE:
63 param->value = dev_priv->prim_bb_mem;
65 case DRM_VMW_PARAM_FIFO_HW_VERSION:
67 u32 __iomem *fifo_mem = dev_priv->mmio_virt;
68 const struct vmw_fifo_state *fifo = &dev_priv->fifo;
70 if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) {
71 param->value = SVGA3D_HWVERSION_WS8_B1;
77 ((fifo->capabilities &
78 SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ?
79 SVGA_FIFO_3D_HWVERSION_REVISED :
80 SVGA_FIFO_3D_HWVERSION));
83 case DRM_VMW_PARAM_MAX_SURF_MEMORY:
84 if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) &&
86 param->value = dev_priv->max_mob_pages * PAGE_SIZE / 2;
88 param->value = dev_priv->memory_size;
90 case DRM_VMW_PARAM_3D_CAPS_SIZE:
91 if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) &&
93 param->value = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
94 else if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS)
95 param->value = sizeof(struct svga_3d_compat_cap) +
98 param->value = (SVGA_FIFO_3D_CAPS_LAST -
99 SVGA_FIFO_3D_CAPS + 1) *
102 case DRM_VMW_PARAM_MAX_MOB_MEMORY:
103 vmw_fp->gb_aware = true;
104 param->value = dev_priv->max_mob_pages * PAGE_SIZE;
106 case DRM_VMW_PARAM_MAX_MOB_SIZE:
107 param->value = dev_priv->max_mob_size;
109 case DRM_VMW_PARAM_SCREEN_TARGET:
111 (dev_priv->active_display_unit == vmw_du_screen_target);
113 case DRM_VMW_PARAM_DX:
114 param->value = dev_priv->has_dx;
117 DRM_ERROR("Illegal vmwgfx get param request: %d\n",
125 static int vmw_fill_compat_cap(struct vmw_private *dev_priv, void *bounce,
128 struct svga_3d_compat_cap *compat_cap =
129 (struct svga_3d_compat_cap *) bounce;
131 size_t pair_offset = offsetof(struct svga_3d_compat_cap, pairs);
132 unsigned int max_size;
134 if (size < pair_offset)
137 max_size = (size - pair_offset) / sizeof(SVGA3dCapPair);
139 if (max_size > SVGA3D_DEVCAP_MAX)
140 max_size = SVGA3D_DEVCAP_MAX;
142 compat_cap->header.length =
143 (pair_offset + max_size * sizeof(SVGA3dCapPair)) / sizeof(u32);
144 compat_cap->header.type = SVGA3DCAPS_RECORD_DEVCAPS;
146 spin_lock(&dev_priv->cap_lock);
147 for (i = 0; i < max_size; ++i) {
148 vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
149 compat_cap->pairs[i][0] = i;
150 compat_cap->pairs[i][1] = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
152 spin_unlock(&dev_priv->cap_lock);
158 int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
159 struct drm_file *file_priv)
161 struct drm_vmw_get_3d_cap_arg *arg =
162 (struct drm_vmw_get_3d_cap_arg *) data;
163 struct vmw_private *dev_priv = vmw_priv(dev);
165 u32 __iomem *fifo_mem;
166 void __user *buffer = (void __user *)((unsigned long)(arg->buffer));
169 bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS);
170 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
172 if (unlikely(arg->pad64 != 0)) {
173 DRM_ERROR("Illegal GET_3D_CAP argument.\n");
177 if (gb_objects && vmw_fp->gb_aware)
178 size = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
180 size = sizeof(struct svga_3d_compat_cap) + sizeof(uint32_t);
182 size = (SVGA_FIFO_3D_CAPS_LAST - SVGA_FIFO_3D_CAPS + 1) *
185 if (arg->max_size < size)
186 size = arg->max_size;
188 bounce = vzalloc(size);
189 if (unlikely(bounce == NULL)) {
190 DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n");
194 if (gb_objects && vmw_fp->gb_aware) {
196 uint32_t *bounce32 = (uint32_t *) bounce;
198 num = size / sizeof(uint32_t);
199 if (num > SVGA3D_DEVCAP_MAX)
200 num = SVGA3D_DEVCAP_MAX;
202 spin_lock(&dev_priv->cap_lock);
203 for (i = 0; i < num; ++i) {
204 vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
205 *bounce32++ = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
207 spin_unlock(&dev_priv->cap_lock);
208 } else if (gb_objects) {
209 ret = vmw_fill_compat_cap(dev_priv, bounce, size);
210 if (unlikely(ret != 0))
213 fifo_mem = dev_priv->mmio_virt;
214 memcpy_fromio(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size);
217 ret = copy_to_user(buffer, bounce, size);
223 if (unlikely(ret != 0))
224 DRM_ERROR("Failed to report 3D caps info.\n");
229 int vmw_present_ioctl(struct drm_device *dev, void *data,
230 struct drm_file *file_priv)
232 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
233 struct vmw_private *dev_priv = vmw_priv(dev);
234 struct drm_vmw_present_arg *arg =
235 (struct drm_vmw_present_arg *)data;
236 struct vmw_surface *surface;
237 struct drm_vmw_rect __user *clips_ptr;
238 struct drm_vmw_rect *clips = NULL;
239 struct drm_framebuffer *fb;
240 struct vmw_framebuffer *vfb;
241 struct vmw_resource *res;
245 num_clips = arg->num_clips;
246 clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
248 if (unlikely(num_clips == 0))
251 if (clips_ptr == NULL) {
252 DRM_ERROR("Variable clips_ptr must be specified.\n");
257 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
259 DRM_ERROR("Failed to allocate clip rect list.\n");
264 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
266 DRM_ERROR("Failed to copy clip rects from userspace.\n");
271 drm_modeset_lock_all(dev);
273 fb = drm_framebuffer_lookup(dev, arg->fb_id);
275 DRM_ERROR("Invalid framebuffer id.\n");
279 vfb = vmw_framebuffer_to_vfb(fb);
281 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
282 if (unlikely(ret != 0))
283 goto out_no_ttm_lock;
285 ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid,
286 user_surface_converter,
291 surface = vmw_res_to_srf(res);
292 ret = vmw_kms_present(dev_priv, file_priv,
293 vfb, surface, arg->sid,
294 arg->dest_x, arg->dest_y,
297 /* vmw_user_surface_lookup takes one ref so does new_fb */
298 vmw_surface_unreference(&surface);
301 ttm_read_unlock(&dev_priv->reservation_sem);
303 drm_framebuffer_unreference(fb);
305 drm_modeset_unlock_all(dev);
312 int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
313 struct drm_file *file_priv)
315 struct vmw_private *dev_priv = vmw_priv(dev);
316 struct drm_vmw_present_readback_arg *arg =
317 (struct drm_vmw_present_readback_arg *)data;
318 struct drm_vmw_fence_rep __user *user_fence_rep =
319 (struct drm_vmw_fence_rep __user *)
320 (unsigned long)arg->fence_rep;
321 struct drm_vmw_rect __user *clips_ptr;
322 struct drm_vmw_rect *clips = NULL;
323 struct drm_framebuffer *fb;
324 struct vmw_framebuffer *vfb;
328 num_clips = arg->num_clips;
329 clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
331 if (unlikely(num_clips == 0))
334 if (clips_ptr == NULL) {
335 DRM_ERROR("Argument clips_ptr must be specified.\n");
340 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
342 DRM_ERROR("Failed to allocate clip rect list.\n");
347 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
349 DRM_ERROR("Failed to copy clip rects from userspace.\n");
354 drm_modeset_lock_all(dev);
356 fb = drm_framebuffer_lookup(dev, arg->fb_id);
358 DRM_ERROR("Invalid framebuffer id.\n");
363 vfb = vmw_framebuffer_to_vfb(fb);
365 DRM_ERROR("Framebuffer not dmabuf backed.\n");
367 goto out_no_ttm_lock;
370 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
371 if (unlikely(ret != 0))
372 goto out_no_ttm_lock;
374 ret = vmw_kms_readback(dev_priv, file_priv,
378 ttm_read_unlock(&dev_priv->reservation_sem);
380 drm_framebuffer_unreference(fb);
382 drm_modeset_unlock_all(dev);
391 * vmw_fops_poll - wrapper around the drm_poll function
393 * @filp: See the linux fops poll documentation.
394 * @wait: See the linux fops poll documentation.
396 * Wrapper around the drm_poll function that makes sure the device is
397 * processing the fifo if drm_poll decides to wait.
399 unsigned int vmw_fops_poll(struct file *filp, struct poll_table_struct *wait)
401 struct drm_file *file_priv = filp->private_data;
402 struct vmw_private *dev_priv =
403 vmw_priv(file_priv->minor->dev);
405 vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
406 return drm_poll(filp, wait);
411 * vmw_fops_read - wrapper around the drm_read function
413 * @filp: See the linux fops read documentation.
414 * @buffer: See the linux fops read documentation.
415 * @count: See the linux fops read documentation.
416 * offset: See the linux fops read documentation.
418 * Wrapper around the drm_read function that makes sure the device is
419 * processing the fifo if drm_read decides to wait.
421 ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
422 size_t count, loff_t *offset)
424 struct drm_file *file_priv = filp->private_data;
425 struct vmw_private *dev_priv =
426 vmw_priv(file_priv->minor->dev);
428 vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
429 return drm_read(filp, buffer, count, offset);