1 // SPDX-License-Identifier: GPL-2.0 OR MIT
2 /**************************************************************************
4 * 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_supports_3d(dev_priv) ? 1 : 0;
56 case DRM_VMW_PARAM_HW_CAPS:
57 param->value = dev_priv->capabilities;
59 case DRM_VMW_PARAM_HW_CAPS2:
60 param->value = dev_priv->capabilities2;
62 case DRM_VMW_PARAM_FIFO_CAPS:
63 param->value = vmw_fifo_caps(dev_priv);
65 case DRM_VMW_PARAM_MAX_FB_SIZE:
66 param->value = dev_priv->prim_bb_mem;
68 case DRM_VMW_PARAM_FIFO_HW_VERSION:
70 if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) {
71 param->value = SVGA3D_HWVERSION_WS8_B1;
76 vmw_fifo_mem_read(dev_priv,
77 ((vmw_fifo_caps(dev_priv) &
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 = has_sm4_context(dev_priv);
116 case DRM_VMW_PARAM_SM4_1:
117 param->value = has_sm4_1_context(dev_priv);
119 case DRM_VMW_PARAM_SM5:
120 param->value = has_sm5_context(dev_priv);
129 static u32 vmw_mask_legacy_multisample(unsigned int cap, u32 fmt_value)
132 * A version of user-space exists which use MULTISAMPLE_MASKABLESAMPLES
133 * to check the sample count supported by virtual device. Since there
134 * never was support for multisample count for backing MOB return 0.
136 * MULTISAMPLE_MASKABLESAMPLES devcap is marked as deprecated by virtual
139 if (cap == SVGA3D_DEVCAP_DEAD5)
145 static int vmw_fill_compat_cap(struct vmw_private *dev_priv, void *bounce,
148 struct svga_3d_compat_cap *compat_cap =
149 (struct svga_3d_compat_cap *) bounce;
151 size_t pair_offset = offsetof(struct svga_3d_compat_cap, pairs);
152 unsigned int max_size;
154 if (size < pair_offset)
157 max_size = (size - pair_offset) / sizeof(SVGA3dCapPair);
159 if (max_size > SVGA3D_DEVCAP_MAX)
160 max_size = SVGA3D_DEVCAP_MAX;
162 compat_cap->header.length =
163 (pair_offset + max_size * sizeof(SVGA3dCapPair)) / sizeof(u32);
164 compat_cap->header.type = SVGA3DCAPS_RECORD_DEVCAPS;
166 spin_lock(&dev_priv->cap_lock);
167 for (i = 0; i < max_size; ++i) {
168 vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
169 compat_cap->pairs[i][0] = i;
170 compat_cap->pairs[i][1] = vmw_mask_legacy_multisample
171 (i, vmw_read(dev_priv, SVGA_REG_DEV_CAP));
173 spin_unlock(&dev_priv->cap_lock);
179 int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
180 struct drm_file *file_priv)
182 struct drm_vmw_get_3d_cap_arg *arg =
183 (struct drm_vmw_get_3d_cap_arg *) data;
184 struct vmw_private *dev_priv = vmw_priv(dev);
187 void __user *buffer = (void __user *)((unsigned long)(arg->buffer));
190 bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS);
191 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
193 if (unlikely(arg->pad64 != 0 || arg->max_size == 0)) {
194 VMW_DEBUG_USER("Illegal GET_3D_CAP argument.\n");
198 if (gb_objects && vmw_fp->gb_aware)
199 size = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
201 size = sizeof(struct svga_3d_compat_cap) + sizeof(uint32_t);
203 size = (SVGA_FIFO_3D_CAPS_LAST - SVGA_FIFO_3D_CAPS + 1) *
206 if (arg->max_size < size)
207 size = arg->max_size;
209 bounce = vzalloc(size);
210 if (unlikely(bounce == NULL)) {
211 DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n");
215 if (gb_objects && vmw_fp->gb_aware) {
217 uint32_t *bounce32 = (uint32_t *) bounce;
219 num = size / sizeof(uint32_t);
220 if (num > SVGA3D_DEVCAP_MAX)
221 num = SVGA3D_DEVCAP_MAX;
223 spin_lock(&dev_priv->cap_lock);
224 for (i = 0; i < num; ++i) {
225 vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
226 *bounce32++ = vmw_mask_legacy_multisample
227 (i, vmw_read(dev_priv, SVGA_REG_DEV_CAP));
229 spin_unlock(&dev_priv->cap_lock);
230 } else if (gb_objects) {
231 ret = vmw_fill_compat_cap(dev_priv, bounce, size);
232 if (unlikely(ret != 0))
235 fifo_mem = dev_priv->fifo_mem;
236 memcpy(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size);
239 ret = copy_to_user(buffer, bounce, size);
245 if (unlikely(ret != 0))
246 DRM_ERROR("Failed to report 3D caps info.\n");
251 int vmw_present_ioctl(struct drm_device *dev, void *data,
252 struct drm_file *file_priv)
254 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
255 struct vmw_private *dev_priv = vmw_priv(dev);
256 struct drm_vmw_present_arg *arg =
257 (struct drm_vmw_present_arg *)data;
258 struct vmw_surface *surface;
259 struct drm_vmw_rect __user *clips_ptr;
260 struct drm_vmw_rect *clips = NULL;
261 struct drm_framebuffer *fb;
262 struct vmw_framebuffer *vfb;
263 struct vmw_resource *res;
267 num_clips = arg->num_clips;
268 clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
270 if (unlikely(num_clips == 0))
273 if (clips_ptr == NULL) {
274 VMW_DEBUG_USER("Variable clips_ptr must be specified.\n");
279 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
281 DRM_ERROR("Failed to allocate clip rect list.\n");
286 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
288 DRM_ERROR("Failed to copy clip rects from userspace.\n");
293 drm_modeset_lock_all(dev);
295 fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id);
297 VMW_DEBUG_USER("Invalid framebuffer id.\n");
301 vfb = vmw_framebuffer_to_vfb(fb);
303 ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid,
304 user_surface_converter,
309 surface = vmw_res_to_srf(res);
310 ret = vmw_kms_present(dev_priv, file_priv,
311 vfb, surface, arg->sid,
312 arg->dest_x, arg->dest_y,
315 /* vmw_user_surface_lookup takes one ref so does new_fb */
316 vmw_surface_unreference(&surface);
319 drm_framebuffer_put(fb);
321 drm_modeset_unlock_all(dev);
328 int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
329 struct drm_file *file_priv)
331 struct vmw_private *dev_priv = vmw_priv(dev);
332 struct drm_vmw_present_readback_arg *arg =
333 (struct drm_vmw_present_readback_arg *)data;
334 struct drm_vmw_fence_rep __user *user_fence_rep =
335 (struct drm_vmw_fence_rep __user *)
336 (unsigned long)arg->fence_rep;
337 struct drm_vmw_rect __user *clips_ptr;
338 struct drm_vmw_rect *clips = NULL;
339 struct drm_framebuffer *fb;
340 struct vmw_framebuffer *vfb;
344 num_clips = arg->num_clips;
345 clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
347 if (unlikely(num_clips == 0))
350 if (clips_ptr == NULL) {
351 VMW_DEBUG_USER("Argument clips_ptr must be specified.\n");
356 clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
358 DRM_ERROR("Failed to allocate clip rect list.\n");
363 ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
365 DRM_ERROR("Failed to copy clip rects from userspace.\n");
370 drm_modeset_lock_all(dev);
372 fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id);
374 VMW_DEBUG_USER("Invalid framebuffer id.\n");
379 vfb = vmw_framebuffer_to_vfb(fb);
381 VMW_DEBUG_USER("Framebuffer not buffer backed.\n");
383 goto out_no_ttm_lock;
386 ret = vmw_kms_readback(dev_priv, file_priv,
391 drm_framebuffer_put(fb);
393 drm_modeset_unlock_all(dev);