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
26 #include <linux/pci.h>
27 #include <linux/uaccess.h>
30 #include "qxl_object.h"
33 * TODO: allocating a new gem(in qxl_bo) for each request.
34 * This is wasteful since bo's are page aligned.
36 static int qxl_alloc_ioctl(struct drm_device *dev, void *data,
37 struct drm_file *file_priv)
39 struct qxl_device *qdev = to_qxl(dev);
40 struct drm_qxl_alloc *qxl_alloc = data;
44 u32 domain = QXL_GEM_DOMAIN_VRAM;
46 if (qxl_alloc->size == 0) {
47 DRM_ERROR("invalid size %d\n", qxl_alloc->size);
50 ret = qxl_gem_object_create_with_handle(qdev, file_priv,
56 DRM_ERROR("%s: failed to create gem ret=%d\n",
60 qxl_alloc->handle = handle;
64 static int qxl_map_ioctl(struct drm_device *dev, void *data,
65 struct drm_file *file_priv)
67 struct qxl_device *qdev = to_qxl(dev);
68 struct drm_qxl_map *qxl_map = data;
70 return qxl_mode_dumb_mmap(file_priv, &qdev->ddev, qxl_map->handle,
74 struct qxl_reloc_info {
76 struct qxl_bo *dst_bo;
78 struct qxl_bo *src_bo;
83 * dst must be validated, i.e. whole bo on vram/surfacesram (right now all bo's
85 * *(dst + dst_off) = qxl_bo_physical_address(src, src_off)
88 apply_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info)
92 reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
93 *(uint64_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = qxl_bo_physical_address(qdev,
96 qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
100 apply_surf_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info)
105 if (info->src_bo && !info->src_bo->is_primary)
106 id = info->src_bo->surface_id;
108 reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
109 *(uint32_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = id;
110 qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
113 /* return holding the reference to this object */
114 static int qxlhw_handle_to_bo(struct drm_file *file_priv, uint64_t handle,
115 struct qxl_release *release, struct qxl_bo **qbo_p)
117 struct drm_gem_object *gobj;
121 gobj = drm_gem_object_lookup(file_priv, handle);
125 qobj = gem_to_qxl_bo(gobj);
127 ret = qxl_release_list_add(release, qobj);
128 drm_gem_object_put(gobj);
137 * Usage of execbuffer:
138 * Relocations need to take into account the full QXLDrawable size.
139 * However, the command as passed from user space must *not* contain the initial
140 * QXLReleaseInfo struct (first XXX bytes)
142 static int qxl_process_single_command(struct qxl_device *qdev,
143 struct drm_qxl_command *cmd,
144 struct drm_file *file_priv)
146 struct qxl_reloc_info *reloc_info;
148 struct qxl_release *release;
149 struct qxl_bo *cmd_bo;
151 int i, ret, num_relocs;
156 release_type = QXL_RELEASE_DRAWABLE;
158 case QXL_CMD_SURFACE:
161 DRM_DEBUG("Only draw commands in execbuffers\n");
166 if (cmd->command_size > PAGE_SIZE - sizeof(union qxl_release_info))
169 if (!access_ok(u64_to_user_ptr(cmd->command),
173 reloc_info = kmalloc_array(cmd->relocs_num,
174 sizeof(struct qxl_reloc_info), GFP_KERNEL);
178 ret = qxl_alloc_release_reserved(qdev,
179 sizeof(union qxl_release_info) +
187 /* TODO copy slow path code from i915 */
188 fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_MASK));
189 unwritten = __copy_from_user_inatomic_nocache
190 (fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_MASK),
191 u64_to_user_ptr(cmd->command), cmd->command_size);
194 struct qxl_drawable *draw = fb_cmd;
196 draw->mm_time = qdev->rom->mm_clock;
199 qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd);
201 DRM_ERROR("got unwritten %d\n", unwritten);
203 goto out_free_release;
206 /* fill out reloc info structs */
208 for (i = 0; i < cmd->relocs_num; ++i) {
209 struct drm_qxl_reloc reloc;
210 struct drm_qxl_reloc __user *u = u64_to_user_ptr(cmd->relocs);
212 if (copy_from_user(&reloc, u + i, sizeof(reloc))) {
217 /* add the bos to the list of bos to validate -
218 need to validate first then process relocs? */
219 if (reloc.reloc_type != QXL_RELOC_TYPE_BO && reloc.reloc_type != QXL_RELOC_TYPE_SURF) {
220 DRM_DEBUG("unknown reloc type %d\n", reloc.reloc_type);
225 reloc_info[i].type = reloc.reloc_type;
227 if (reloc.dst_handle) {
228 ret = qxlhw_handle_to_bo(file_priv, reloc.dst_handle, release,
229 &reloc_info[i].dst_bo);
232 reloc_info[i].dst_offset = reloc.dst_offset;
234 reloc_info[i].dst_bo = cmd_bo;
235 reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset;
239 /* reserve and validate the reloc dst bo */
240 if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle) {
241 ret = qxlhw_handle_to_bo(file_priv, reloc.src_handle, release,
242 &reloc_info[i].src_bo);
245 reloc_info[i].src_offset = reloc.src_offset;
247 reloc_info[i].src_bo = NULL;
248 reloc_info[i].src_offset = 0;
252 /* validate all buffers */
253 ret = qxl_release_reserve_list(release, false);
257 for (i = 0; i < cmd->relocs_num; ++i) {
258 if (reloc_info[i].type == QXL_RELOC_TYPE_BO)
259 apply_reloc(qdev, &reloc_info[i]);
260 else if (reloc_info[i].type == QXL_RELOC_TYPE_SURF)
261 apply_surf_reloc(qdev, &reloc_info[i]);
264 qxl_release_fence_buffer_objects(release);
265 ret = qxl_push_command_ring_release(qdev, release, cmd->type, true);
270 qxl_release_free(qdev, release);
276 static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
277 struct drm_file *file_priv)
279 struct qxl_device *qdev = to_qxl(dev);
280 struct drm_qxl_execbuffer *execbuffer = data;
281 struct drm_qxl_command user_cmd;
285 for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {
287 struct drm_qxl_command __user *commands =
288 u64_to_user_ptr(execbuffer->commands);
290 if (copy_from_user(&user_cmd, commands + cmd_num,
294 ret = qxl_process_single_command(qdev, &user_cmd, file_priv);
301 static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
302 struct drm_file *file)
304 struct qxl_device *qdev = to_qxl(dev);
305 struct drm_qxl_update_area *update_area = data;
306 struct qxl_rect area = {.left = update_area->left,
307 .top = update_area->top,
308 .right = update_area->right,
309 .bottom = update_area->bottom};
311 struct drm_gem_object *gobj = NULL;
312 struct qxl_bo *qobj = NULL;
313 struct ttm_operation_ctx ctx = { true, false };
315 if (update_area->left >= update_area->right ||
316 update_area->top >= update_area->bottom)
319 gobj = drm_gem_object_lookup(file, update_area->handle);
323 qobj = gem_to_qxl_bo(gobj);
325 ret = qxl_bo_reserve(qobj);
329 if (!qobj->pin_count) {
330 qxl_ttm_placement_from_domain(qobj, qobj->type, false);
331 ret = ttm_bo_validate(&qobj->tbo, &qobj->placement, &ctx);
336 ret = qxl_bo_check_id(qdev, qobj);
339 if (!qobj->surface_id)
340 DRM_ERROR("got update area for surface with no id %d\n", update_area->handle);
341 ret = qxl_io_update_area(qdev, qobj, &area);
344 qxl_bo_unreserve(qobj);
347 drm_gem_object_put(gobj);
351 static int qxl_getparam_ioctl(struct drm_device *dev, void *data,
352 struct drm_file *file_priv)
354 struct qxl_device *qdev = to_qxl(dev);
355 struct drm_qxl_getparam *param = data;
357 switch (param->param) {
358 case QXL_PARAM_NUM_SURFACES:
359 param->value = qdev->rom->n_surfaces;
361 case QXL_PARAM_MAX_RELOCS:
362 param->value = QXL_MAX_RES;
370 static int qxl_clientcap_ioctl(struct drm_device *dev, void *data,
371 struct drm_file *file_priv)
373 struct qxl_device *qdev = to_qxl(dev);
374 struct drm_qxl_clientcap *param = data;
377 byte = param->index / 8;
378 idx = param->index % 8;
380 if (dev->pdev->revision < 4)
386 if (qdev->rom->client_capabilities[byte] & (1 << idx))
391 static int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data,
392 struct drm_file *file)
394 struct qxl_device *qdev = to_qxl(dev);
395 struct drm_qxl_alloc_surf *param = data;
399 int size, actual_stride;
400 struct qxl_surface surf;
402 /* work out size allocate bo with handle */
403 actual_stride = param->stride < 0 ? -param->stride : param->stride;
404 size = actual_stride * param->height + actual_stride;
406 surf.format = param->format;
407 surf.width = param->width;
408 surf.height = param->height;
409 surf.stride = param->stride;
412 ret = qxl_gem_object_create_with_handle(qdev, file,
413 QXL_GEM_DOMAIN_SURFACE,
418 DRM_ERROR("%s: failed to create gem ret=%d\n",
422 param->handle = handle;
426 const struct drm_ioctl_desc qxl_ioctls[] = {
427 DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH),
429 DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH),
431 DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl,
433 DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl,
435 DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl,
437 DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl,
440 DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl,
444 int qxl_max_ioctls = ARRAY_SIZE(qxl_ioctls);