1 /**************************************************************************
3 * Copyright © 2009 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"
32 struct svga_3d_compat_cap {
33 SVGA3dCapsRecordHeader header;
34 SVGA3dCapPair pairs[SVGA3D_DEVCAP_MAX];
37 int vmw_getparam_ioctl(struct drm_device *dev, void *data,
38 struct drm_file *file_priv)
40 struct vmw_private *dev_priv = vmw_priv(dev);
41 struct drm_vmw_getparam_arg *param =
42 (struct drm_vmw_getparam_arg *)data;
43 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
45 switch (param->param) {
46 case DRM_VMW_PARAM_NUM_STREAMS:
47 param->value = vmw_overlay_num_overlays(dev_priv);
49 case DRM_VMW_PARAM_NUM_FREE_STREAMS:
50 param->value = vmw_overlay_num_free_overlays(dev_priv);
52 case DRM_VMW_PARAM_3D:
53 param->value = vmw_fifo_have_3d(dev_priv) ? 1 : 0;
55 case DRM_VMW_PARAM_HW_CAPS:
56 param->value = dev_priv->capabilities;
58 case DRM_VMW_PARAM_FIFO_CAPS:
59 param->value = dev_priv->fifo.capabilities;
61 case DRM_VMW_PARAM_MAX_FB_SIZE:
62 param->value = dev_priv->prim_bb_mem;
64 case DRM_VMW_PARAM_FIFO_HW_VERSION:
66 u32 __iomem *fifo_mem = dev_priv->mmio_virt;
67 const struct vmw_fifo_state *fifo = &dev_priv->fifo;
69 if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) {
70 param->value = SVGA3D_HWVERSION_WS8_B1;
76 ((fifo->capabilities &
77 SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ?
78 SVGA_FIFO_3D_HWVERSION_REVISED :
79 SVGA_FIFO_3D_HWVERSION));
82 case DRM_VMW_PARAM_MAX_SURF_MEMORY:
83 if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) &&
85 param->value = dev_priv->max_mob_pages * PAGE_SIZE / 2;
87 param->value = dev_priv->memory_size;
89 case DRM_VMW_PARAM_3D_CAPS_SIZE:
90 if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) &&
92 param->value = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
93 else if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS)
94 param->value = sizeof(struct svga_3d_compat_cap) +
97 param->value = (SVGA_FIFO_3D_CAPS_LAST -
98 SVGA_FIFO_3D_CAPS + 1) *
101 case DRM_VMW_PARAM_MAX_MOB_MEMORY:
102 vmw_fp->gb_aware = true;
103 param->value = dev_priv->max_mob_pages * PAGE_SIZE;
105 case DRM_VMW_PARAM_MAX_MOB_SIZE:
106 param->value = dev_priv->max_mob_size;
108 case DRM_VMW_PARAM_SCREEN_TARGET:
110 (dev_priv->active_display_unit == vmw_du_screen_target);
113 DRM_ERROR("Illegal vmwgfx get param request: %d\n",
121 static int vmw_fill_compat_cap(struct vmw_private *dev_priv, void *bounce,
124 struct svga_3d_compat_cap *compat_cap =
125 (struct svga_3d_compat_cap *) bounce;
127 size_t pair_offset = offsetof(struct svga_3d_compat_cap, pairs);
128 unsigned int max_size;
130 if (size < pair_offset)
133 max_size = (size - pair_offset) / sizeof(SVGA3dCapPair);
135 if (max_size > SVGA3D_DEVCAP_MAX)
136 max_size = SVGA3D_DEVCAP_MAX;
138 compat_cap->header.length =
139 (pair_offset + max_size * sizeof(SVGA3dCapPair)) / sizeof(u32);
140 compat_cap->header.type = SVGA3DCAPS_RECORD_DEVCAPS;
142 spin_lock(&dev_priv->cap_lock);
143 for (i = 0; i < max_size; ++i) {
144 vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
145 compat_cap->pairs[i][0] = i;
146 compat_cap->pairs[i][1] = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
148 spin_unlock(&dev_priv->cap_lock);
154 int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
155 struct drm_file *file_priv)
157 struct drm_vmw_get_3d_cap_arg *arg =
158 (struct drm_vmw_get_3d_cap_arg *) data;
159 struct vmw_private *dev_priv = vmw_priv(dev);
161 u32 __iomem *fifo_mem;
162 void __user *buffer = (void __user *)((unsigned long)(arg->buffer));
165 bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS);
166 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
168 if (unlikely(arg->pad64 != 0)) {
169 DRM_ERROR("Illegal GET_3D_CAP argument.\n");
173 if (gb_objects && vmw_fp->gb_aware)
174 size = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
176 size = sizeof(struct svga_3d_compat_cap) + sizeof(uint32_t);
178 size = (SVGA_FIFO_3D_CAPS_LAST - SVGA_FIFO_3D_CAPS + 1) *
181 if (arg->max_size < size)
182 size = arg->max_size;
184 bounce = vzalloc(size);
185 if (unlikely(bounce == NULL)) {
186 DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n");
190 if (gb_objects && vmw_fp->gb_aware) {
192 uint32_t *bounce32 = (uint32_t *) bounce;
194 num = size / sizeof(uint32_t);
195 if (num > SVGA3D_DEVCAP_MAX)
196 num = SVGA3D_DEVCAP_MAX;
198 spin_lock(&dev_priv->cap_lock);
199 for (i = 0; i < num; ++i) {
200 vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
201 *bounce32++ = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
203 spin_unlock(&dev_priv->cap_lock);
204 } else if (gb_objects) {
205 ret = vmw_fill_compat_cap(dev_priv, bounce, size);
206 if (unlikely(ret != 0))
209 fifo_mem = dev_priv->mmio_virt;
210 memcpy_fromio(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size);
213 ret = copy_to_user(buffer, bounce, size);
219 if (unlikely(ret != 0))
220 DRM_ERROR("Failed to report 3D caps info.\n");
225 int vmw_present_ioctl(struct drm_device *dev, void *data,
226 struct drm_file *file_priv)
228 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
229 struct vmw_private *dev_priv = vmw_priv(dev);
230 struct drm_vmw_present_arg *arg =
231 (struct drm_vmw_present_arg *)data;
232 struct vmw_surface *surface;
233 struct drm_vmw_rect __user *clips_ptr;
234 struct drm_vmw_rect *clips = NULL;
235 struct drm_framebuffer *fb;
236 struct vmw_framebuffer *vfb;
237 struct vmw_resource *res;
241 num_clips = arg->num_clips;
242 clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
244 if (unlikely(num_clips == 0))
247 if (clips_ptr == NULL) {
248 DRM_ERROR("Variable clips_ptr must be specified.\n");
253 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
255 DRM_ERROR("Failed to allocate clip rect list.\n");
260 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
262 DRM_ERROR("Failed to copy clip rects from userspace.\n");
267 drm_modeset_lock_all(dev);
269 fb = drm_framebuffer_lookup(dev, arg->fb_id);
271 DRM_ERROR("Invalid framebuffer id.\n");
275 vfb = vmw_framebuffer_to_vfb(fb);
277 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
278 if (unlikely(ret != 0))
279 goto out_no_ttm_lock;
281 ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid,
282 user_surface_converter,
287 surface = vmw_res_to_srf(res);
288 ret = vmw_kms_present(dev_priv, file_priv,
289 vfb, surface, arg->sid,
290 arg->dest_x, arg->dest_y,
293 /* vmw_user_surface_lookup takes one ref so does new_fb */
294 vmw_surface_unreference(&surface);
297 ttm_read_unlock(&dev_priv->reservation_sem);
299 drm_framebuffer_unreference(fb);
301 drm_modeset_unlock_all(dev);
308 int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
309 struct drm_file *file_priv)
311 struct vmw_private *dev_priv = vmw_priv(dev);
312 struct drm_vmw_present_readback_arg *arg =
313 (struct drm_vmw_present_readback_arg *)data;
314 struct drm_vmw_fence_rep __user *user_fence_rep =
315 (struct drm_vmw_fence_rep __user *)
316 (unsigned long)arg->fence_rep;
317 struct drm_vmw_rect __user *clips_ptr;
318 struct drm_vmw_rect *clips = NULL;
319 struct drm_framebuffer *fb;
320 struct vmw_framebuffer *vfb;
324 num_clips = arg->num_clips;
325 clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
327 if (unlikely(num_clips == 0))
330 if (clips_ptr == NULL) {
331 DRM_ERROR("Argument clips_ptr must be specified.\n");
336 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
338 DRM_ERROR("Failed to allocate clip rect list.\n");
343 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
345 DRM_ERROR("Failed to copy clip rects from userspace.\n");
350 drm_modeset_lock_all(dev);
352 fb = drm_framebuffer_lookup(dev, arg->fb_id);
354 DRM_ERROR("Invalid framebuffer id.\n");
359 vfb = vmw_framebuffer_to_vfb(fb);
361 DRM_ERROR("Framebuffer not dmabuf backed.\n");
363 goto out_no_ttm_lock;
366 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
367 if (unlikely(ret != 0))
368 goto out_no_ttm_lock;
370 ret = vmw_kms_readback(dev_priv, file_priv,
374 ttm_read_unlock(&dev_priv->reservation_sem);
376 drm_framebuffer_unreference(fb);
378 drm_modeset_unlock_all(dev);
387 * vmw_fops_poll - wrapper around the drm_poll function
389 * @filp: See the linux fops poll documentation.
390 * @wait: See the linux fops poll documentation.
392 * Wrapper around the drm_poll function that makes sure the device is
393 * processing the fifo if drm_poll decides to wait.
395 unsigned int vmw_fops_poll(struct file *filp, struct poll_table_struct *wait)
397 struct drm_file *file_priv = filp->private_data;
398 struct vmw_private *dev_priv =
399 vmw_priv(file_priv->minor->dev);
401 vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
402 return drm_poll(filp, wait);
407 * vmw_fops_read - wrapper around the drm_read function
409 * @filp: See the linux fops read documentation.
410 * @buffer: See the linux fops read documentation.
411 * @count: See the linux fops read documentation.
412 * offset: See the linux fops read documentation.
414 * Wrapper around the drm_read function that makes sure the device is
415 * processing the fifo if drm_read decides to wait.
417 ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
418 size_t count, loff_t *offset)
420 struct drm_file *file_priv = filp->private_data;
421 struct vmw_private *dev_priv =
422 vmw_priv(file_priv->minor->dev);
424 vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
425 return drm_read(filp, buffer, count, offset);