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 __le32 __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;
109 DRM_ERROR("Illegal vmwgfx get param request: %d\n",
117 static int vmw_fill_compat_cap(struct vmw_private *dev_priv, void *bounce,
120 struct svga_3d_compat_cap *compat_cap =
121 (struct svga_3d_compat_cap *) bounce;
123 size_t pair_offset = offsetof(struct svga_3d_compat_cap, pairs);
124 unsigned int max_size;
126 if (size < pair_offset)
129 max_size = (size - pair_offset) / sizeof(SVGA3dCapPair);
131 if (max_size > SVGA3D_DEVCAP_MAX)
132 max_size = SVGA3D_DEVCAP_MAX;
134 compat_cap->header.length =
135 (pair_offset + max_size * sizeof(SVGA3dCapPair)) / sizeof(u32);
136 compat_cap->header.type = SVGA3DCAPS_RECORD_DEVCAPS;
138 mutex_lock(&dev_priv->hw_mutex);
139 for (i = 0; i < max_size; ++i) {
140 vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
141 compat_cap->pairs[i][0] = i;
142 compat_cap->pairs[i][1] = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
144 mutex_unlock(&dev_priv->hw_mutex);
150 int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
151 struct drm_file *file_priv)
153 struct drm_vmw_get_3d_cap_arg *arg =
154 (struct drm_vmw_get_3d_cap_arg *) data;
155 struct vmw_private *dev_priv = vmw_priv(dev);
157 __le32 __iomem *fifo_mem;
158 void __user *buffer = (void __user *)((unsigned long)(arg->buffer));
161 bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS);
162 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
164 if (unlikely(arg->pad64 != 0)) {
165 DRM_ERROR("Illegal GET_3D_CAP argument.\n");
169 if (gb_objects && vmw_fp->gb_aware)
170 size = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
172 size = sizeof(struct svga_3d_compat_cap) + sizeof(uint32_t);
174 size = (SVGA_FIFO_3D_CAPS_LAST - SVGA_FIFO_3D_CAPS + 1) *
177 if (arg->max_size < size)
178 size = arg->max_size;
180 bounce = vzalloc(size);
181 if (unlikely(bounce == NULL)) {
182 DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n");
186 if (gb_objects && vmw_fp->gb_aware) {
188 uint32_t *bounce32 = (uint32_t *) bounce;
190 num = size / sizeof(uint32_t);
191 if (num > SVGA3D_DEVCAP_MAX)
192 num = SVGA3D_DEVCAP_MAX;
194 mutex_lock(&dev_priv->hw_mutex);
195 for (i = 0; i < num; ++i) {
196 vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
197 *bounce32++ = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
199 mutex_unlock(&dev_priv->hw_mutex);
200 } else if (gb_objects) {
201 ret = vmw_fill_compat_cap(dev_priv, bounce, size);
202 if (unlikely(ret != 0))
205 fifo_mem = dev_priv->mmio_virt;
206 memcpy_fromio(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size);
209 ret = copy_to_user(buffer, bounce, size);
215 if (unlikely(ret != 0))
216 DRM_ERROR("Failed to report 3D caps info.\n");
221 int vmw_present_ioctl(struct drm_device *dev, void *data,
222 struct drm_file *file_priv)
224 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
225 struct vmw_private *dev_priv = vmw_priv(dev);
226 struct drm_vmw_present_arg *arg =
227 (struct drm_vmw_present_arg *)data;
228 struct vmw_surface *surface;
229 struct vmw_master *vmaster = vmw_master(file_priv->master);
230 struct drm_vmw_rect __user *clips_ptr;
231 struct drm_vmw_rect *clips = NULL;
232 struct drm_framebuffer *fb;
233 struct vmw_framebuffer *vfb;
234 struct vmw_resource *res;
238 num_clips = arg->num_clips;
239 clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
241 if (unlikely(num_clips == 0))
244 if (clips_ptr == NULL) {
245 DRM_ERROR("Variable clips_ptr must be specified.\n");
250 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
252 DRM_ERROR("Failed to allocate clip rect list.\n");
257 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
259 DRM_ERROR("Failed to copy clip rects from userspace.\n");
264 drm_modeset_lock_all(dev);
266 fb = drm_framebuffer_lookup(dev, arg->fb_id);
268 DRM_ERROR("Invalid framebuffer id.\n");
272 vfb = vmw_framebuffer_to_vfb(fb);
274 ret = ttm_read_lock(&vmaster->lock, true);
275 if (unlikely(ret != 0))
276 goto out_no_ttm_lock;
278 ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid,
279 user_surface_converter,
284 surface = vmw_res_to_srf(res);
285 ret = vmw_kms_present(dev_priv, file_priv,
286 vfb, surface, arg->sid,
287 arg->dest_x, arg->dest_y,
290 /* vmw_user_surface_lookup takes one ref so does new_fb */
291 vmw_surface_unreference(&surface);
294 ttm_read_unlock(&vmaster->lock);
296 drm_framebuffer_unreference(fb);
298 drm_modeset_unlock_all(dev);
305 int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
306 struct drm_file *file_priv)
308 struct vmw_private *dev_priv = vmw_priv(dev);
309 struct drm_vmw_present_readback_arg *arg =
310 (struct drm_vmw_present_readback_arg *)data;
311 struct drm_vmw_fence_rep __user *user_fence_rep =
312 (struct drm_vmw_fence_rep __user *)
313 (unsigned long)arg->fence_rep;
314 struct vmw_master *vmaster = vmw_master(file_priv->master);
315 struct drm_vmw_rect __user *clips_ptr;
316 struct drm_vmw_rect *clips = NULL;
317 struct drm_framebuffer *fb;
318 struct vmw_framebuffer *vfb;
322 num_clips = arg->num_clips;
323 clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
325 if (unlikely(num_clips == 0))
328 if (clips_ptr == NULL) {
329 DRM_ERROR("Argument clips_ptr must be specified.\n");
334 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
336 DRM_ERROR("Failed to allocate clip rect list.\n");
341 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
343 DRM_ERROR("Failed to copy clip rects from userspace.\n");
348 drm_modeset_lock_all(dev);
350 fb = drm_framebuffer_lookup(dev, arg->fb_id);
352 DRM_ERROR("Invalid framebuffer id.\n");
357 vfb = vmw_framebuffer_to_vfb(fb);
359 DRM_ERROR("Framebuffer not dmabuf backed.\n");
361 goto out_no_ttm_lock;
364 ret = ttm_read_lock(&vmaster->lock, true);
365 if (unlikely(ret != 0))
366 goto out_no_ttm_lock;
368 ret = vmw_kms_readback(dev_priv, file_priv,
372 ttm_read_unlock(&vmaster->lock);
374 drm_framebuffer_unreference(fb);
376 drm_modeset_unlock_all(dev);
385 * vmw_fops_poll - wrapper around the drm_poll function
387 * @filp: See the linux fops poll documentation.
388 * @wait: See the linux fops poll documentation.
390 * Wrapper around the drm_poll function that makes sure the device is
391 * processing the fifo if drm_poll decides to wait.
393 unsigned int vmw_fops_poll(struct file *filp, struct poll_table_struct *wait)
395 struct drm_file *file_priv = filp->private_data;
396 struct vmw_private *dev_priv =
397 vmw_priv(file_priv->minor->dev);
399 vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
400 return drm_poll(filp, wait);
405 * vmw_fops_read - wrapper around the drm_read function
407 * @filp: See the linux fops read documentation.
408 * @buffer: See the linux fops read documentation.
409 * @count: See the linux fops read documentation.
410 * offset: See the linux fops read documentation.
412 * Wrapper around the drm_read function that makes sure the device is
413 * processing the fifo if drm_read decides to wait.
415 ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
416 size_t count, loff_t *offset)
418 struct drm_file *file_priv = filp->private_data;
419 struct vmw_private *dev_priv =
420 vmw_priv(file_priv->minor->dev);
422 vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
423 return drm_read(filp, buffer, count, offset);