2 * Copyright 2013 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
22 * Authors: Dave Airlie
27 #include "qxl_object.h"
30 * TODO: allocating a new gem(in qxl_bo) for each request.
31 * This is wasteful since bo's are page aligned.
33 static int qxl_alloc_ioctl(struct drm_device *dev, void *data,
34 struct drm_file *file_priv)
36 struct qxl_device *qdev = dev->dev_private;
37 struct drm_qxl_alloc *qxl_alloc = data;
41 u32 domain = QXL_GEM_DOMAIN_VRAM;
43 if (qxl_alloc->size == 0) {
44 DRM_ERROR("invalid size %d\n", qxl_alloc->size);
47 ret = qxl_gem_object_create_with_handle(qdev, file_priv,
53 DRM_ERROR("%s: failed to create gem ret=%d\n",
57 qxl_alloc->handle = handle;
61 static int qxl_map_ioctl(struct drm_device *dev, void *data,
62 struct drm_file *file_priv)
64 struct qxl_device *qdev = dev->dev_private;
65 struct drm_qxl_map *qxl_map = data;
67 return qxl_mode_dumb_mmap(file_priv, qdev->ddev, qxl_map->handle,
72 * dst must be validated, i.e. whole bo on vram/surfacesram (right now all bo's
74 * *(dst + dst_off) = qxl_bo_physical_address(src, src_off)
77 apply_reloc(struct qxl_device *qdev, struct qxl_bo *dst, uint64_t dst_off,
78 struct qxl_bo *src, uint64_t src_off)
82 reloc_page = qxl_bo_kmap_atomic_page(qdev, dst, dst_off & PAGE_MASK);
83 *(uint64_t *)(reloc_page + (dst_off & ~PAGE_MASK)) = qxl_bo_physical_address(qdev,
85 qxl_bo_kunmap_atomic_page(qdev, dst, reloc_page);
89 apply_surf_reloc(struct qxl_device *qdev, struct qxl_bo *dst, uint64_t dst_off,
95 if (src && !src->is_primary)
98 reloc_page = qxl_bo_kmap_atomic_page(qdev, dst, dst_off & PAGE_MASK);
99 *(uint32_t *)(reloc_page + (dst_off & ~PAGE_MASK)) = id;
100 qxl_bo_kunmap_atomic_page(qdev, dst, reloc_page);
103 /* return holding the reference to this object */
104 static struct qxl_bo *qxlhw_handle_to_bo(struct qxl_device *qdev,
105 struct drm_file *file_priv, uint64_t handle,
106 struct qxl_reloc_list *reloc_list)
108 struct drm_gem_object *gobj;
112 gobj = drm_gem_object_lookup(qdev->ddev, file_priv, handle);
114 DRM_ERROR("bad bo handle %lld\n", handle);
117 qobj = gem_to_qxl_bo(gobj);
119 ret = qxl_bo_list_add(reloc_list, qobj);
127 * Usage of execbuffer:
128 * Relocations need to take into account the full QXLDrawable size.
129 * However, the command as passed from user space must *not* contain the initial
130 * QXLReleaseInfo struct (first XXX bytes)
132 static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
133 struct drm_file *file_priv)
135 struct qxl_device *qdev = dev->dev_private;
136 struct drm_qxl_execbuffer *execbuffer = data;
137 struct drm_qxl_command user_cmd;
139 struct qxl_bo *reloc_src_bo;
140 struct qxl_bo *reloc_dst_bo;
141 struct drm_qxl_reloc reloc;
144 struct qxl_reloc_list reloc_list;
146 uint32_t reloc_dst_offset;
147 INIT_LIST_HEAD(&reloc_list.bos);
149 for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {
150 struct qxl_release *release;
151 struct qxl_bo *cmd_bo;
153 struct drm_qxl_command *commands =
154 (struct drm_qxl_command *)execbuffer->commands;
156 if (DRM_COPY_FROM_USER(&user_cmd, &commands[cmd_num],
159 switch (user_cmd.type) {
161 release_type = QXL_RELEASE_DRAWABLE;
163 case QXL_CMD_SURFACE:
166 DRM_DEBUG("Only draw commands in execbuffers\n");
171 if (user_cmd.command_size > PAGE_SIZE - sizeof(union qxl_release_info))
174 ret = qxl_alloc_release_reserved(qdev,
175 sizeof(union qxl_release_info) +
176 user_cmd.command_size,
183 /* TODO copy slow path code from i915 */
184 fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE));
185 unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)user_cmd.command, user_cmd.command_size);
186 qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd);
188 DRM_ERROR("got unwritten %d\n", unwritten);
189 qxl_release_unreserve(qdev, release);
190 qxl_release_free(qdev, release);
194 for (i = 0 ; i < user_cmd.relocs_num; ++i) {
195 if (DRM_COPY_FROM_USER(&reloc,
196 &((struct drm_qxl_reloc *)user_cmd.relocs)[i],
198 qxl_bo_list_unreserve(&reloc_list, true);
199 qxl_release_unreserve(qdev, release);
200 qxl_release_free(qdev, release);
204 /* add the bos to the list of bos to validate -
205 need to validate first then process relocs? */
206 if (reloc.dst_handle) {
207 reloc_dst_bo = qxlhw_handle_to_bo(qdev, file_priv,
208 reloc.dst_handle, &reloc_list);
210 qxl_bo_list_unreserve(&reloc_list, true);
211 qxl_release_unreserve(qdev, release);
212 qxl_release_free(qdev, release);
215 reloc_dst_offset = 0;
217 reloc_dst_bo = cmd_bo;
218 reloc_dst_offset = release->release_offset;
221 /* reserve and validate the reloc dst bo */
222 if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle > 0) {
224 qxlhw_handle_to_bo(qdev, file_priv,
225 reloc.src_handle, &reloc_list);
227 if (reloc_dst_bo != cmd_bo)
228 drm_gem_object_unreference_unlocked(&reloc_dst_bo->gem_base);
229 qxl_bo_list_unreserve(&reloc_list, true);
230 qxl_release_unreserve(qdev, release);
231 qxl_release_free(qdev, release);
236 if (reloc.reloc_type == QXL_RELOC_TYPE_BO) {
237 apply_reloc(qdev, reloc_dst_bo, reloc_dst_offset + reloc.dst_offset,
238 reloc_src_bo, reloc.src_offset);
239 } else if (reloc.reloc_type == QXL_RELOC_TYPE_SURF) {
240 apply_surf_reloc(qdev, reloc_dst_bo, reloc_dst_offset + reloc.dst_offset, reloc_src_bo);
242 DRM_ERROR("unknown reloc type %d\n", reloc.reloc_type);
246 if (reloc_src_bo && reloc_src_bo != cmd_bo) {
247 qxl_release_add_res(qdev, release, reloc_src_bo);
248 drm_gem_object_unreference_unlocked(&reloc_src_bo->gem_base);
251 if (reloc_dst_bo != cmd_bo)
252 drm_gem_object_unreference_unlocked(&reloc_dst_bo->gem_base);
254 qxl_fence_releaseable(qdev, release);
256 ret = qxl_push_command_ring_release(qdev, release, user_cmd.type, true);
257 if (ret == -ERESTARTSYS) {
258 qxl_release_unreserve(qdev, release);
259 qxl_release_free(qdev, release);
260 qxl_bo_list_unreserve(&reloc_list, true);
263 qxl_release_unreserve(qdev, release);
265 qxl_bo_list_unreserve(&reloc_list, 0);
269 static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
270 struct drm_file *file)
272 struct qxl_device *qdev = dev->dev_private;
273 struct drm_qxl_update_area *update_area = data;
274 struct qxl_rect area = {.left = update_area->left,
275 .top = update_area->top,
276 .right = update_area->right,
277 .bottom = update_area->bottom};
279 struct drm_gem_object *gobj = NULL;
280 struct qxl_bo *qobj = NULL;
282 if (update_area->left >= update_area->right ||
283 update_area->top >= update_area->bottom)
286 gobj = drm_gem_object_lookup(dev, file, update_area->handle);
290 qobj = gem_to_qxl_bo(gobj);
292 ret = qxl_bo_reserve(qobj, false);
296 if (!qobj->pin_count) {
297 ret = ttm_bo_validate(&qobj->tbo, &qobj->placement,
303 ret = qxl_bo_check_id(qdev, qobj);
306 if (!qobj->surface_id)
307 DRM_ERROR("got update area for surface with no id %d\n", update_area->handle);
308 ret = qxl_io_update_area(qdev, qobj, &area);
311 qxl_bo_unreserve(qobj);
314 drm_gem_object_unreference_unlocked(gobj);
318 static int qxl_getparam_ioctl(struct drm_device *dev, void *data,
319 struct drm_file *file_priv)
321 struct qxl_device *qdev = dev->dev_private;
322 struct drm_qxl_getparam *param = data;
324 switch (param->param) {
325 case QXL_PARAM_NUM_SURFACES:
326 param->value = qdev->rom->n_surfaces;
328 case QXL_PARAM_MAX_RELOCS:
329 param->value = QXL_MAX_RES;
337 static int qxl_clientcap_ioctl(struct drm_device *dev, void *data,
338 struct drm_file *file_priv)
340 struct qxl_device *qdev = dev->dev_private;
341 struct drm_qxl_clientcap *param = data;
344 byte = param->index / 8;
345 idx = param->index % 8;
347 if (qdev->pdev->revision < 4)
353 if (qdev->rom->client_capabilities[byte] & (1 << idx))
358 static int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data,
359 struct drm_file *file)
361 struct qxl_device *qdev = dev->dev_private;
362 struct drm_qxl_alloc_surf *param = data;
366 int size, actual_stride;
367 struct qxl_surface surf;
369 /* work out size allocate bo with handle */
370 actual_stride = param->stride < 0 ? -param->stride : param->stride;
371 size = actual_stride * param->height + actual_stride;
373 surf.format = param->format;
374 surf.width = param->width;
375 surf.height = param->height;
376 surf.stride = param->stride;
379 ret = qxl_gem_object_create_with_handle(qdev, file,
380 QXL_GEM_DOMAIN_SURFACE,
385 DRM_ERROR("%s: failed to create gem ret=%d\n",
389 param->handle = handle;
393 struct drm_ioctl_desc qxl_ioctls[] = {
394 DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH|DRM_UNLOCKED),
396 DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH|DRM_UNLOCKED),
398 DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl,
399 DRM_AUTH|DRM_UNLOCKED),
400 DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl,
401 DRM_AUTH|DRM_UNLOCKED),
402 DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl,
403 DRM_AUTH|DRM_UNLOCKED),
404 DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl,
405 DRM_AUTH|DRM_UNLOCKED),
407 DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl,
408 DRM_AUTH|DRM_UNLOCKED),
411 int qxl_max_ioctls = DRM_ARRAY_SIZE(qxl_ioctls);