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28#include "vmwgfx_drv.h"
29#include "vmwgfx_resource_priv.h"
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38struct vmw_user_simple_resource {
39 struct ttm_base_object base;
40 size_t account_size;
41 struct vmw_simple_resource simple;
42
43
44
45
46};
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62static int vmw_simple_resource_init(struct vmw_private *dev_priv,
63 struct vmw_simple_resource *simple,
64 void *data,
65 void (*res_free)(struct vmw_resource *res))
66{
67 struct vmw_resource *res = &simple->res;
68 int ret;
69
70 ret = vmw_resource_init(dev_priv, res, false, res_free,
71 &simple->func->res_func);
72
73 if (ret) {
74 res_free(res);
75 return ret;
76 }
77
78 ret = simple->func->init(res, data);
79 if (ret) {
80 vmw_resource_unreference(&res);
81 return ret;
82 }
83
84 simple->res.hw_destroy = simple->func->hw_destroy;
85
86 return 0;
87}
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95
96static void vmw_simple_resource_free(struct vmw_resource *res)
97{
98 struct vmw_user_simple_resource *usimple =
99 container_of(res, struct vmw_user_simple_resource,
100 simple.res);
101 struct vmw_private *dev_priv = res->dev_priv;
102 size_t size = usimple->account_size;
103
104 ttm_base_object_kfree(usimple, base);
105 ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
106}
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116
117static void vmw_simple_resource_base_release(struct ttm_base_object **p_base)
118{
119 struct ttm_base_object *base = *p_base;
120 struct vmw_user_simple_resource *usimple =
121 container_of(base, struct vmw_user_simple_resource, base);
122 struct vmw_resource *res = &usimple->simple.res;
123
124 *p_base = NULL;
125 vmw_resource_unreference(&res);
126}
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142int
143vmw_simple_resource_create_ioctl(struct drm_device *dev, void *data,
144 struct drm_file *file_priv,
145 const struct vmw_simple_resource_func *func)
146{
147 struct vmw_private *dev_priv = vmw_priv(dev);
148 struct vmw_user_simple_resource *usimple;
149 struct vmw_resource *res;
150 struct vmw_resource *tmp;
151 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
152 struct ttm_operation_ctx ctx = {
153 .interruptible = true,
154 .no_wait_gpu = false
155 };
156 size_t alloc_size;
157 size_t account_size;
158 int ret;
159
160 alloc_size = offsetof(struct vmw_user_simple_resource, simple) +
161 func->size;
162 account_size = ttm_round_pot(alloc_size) + VMW_IDA_ACC_SIZE +
163 TTM_OBJ_EXTRA_SIZE;
164
165 ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), account_size,
166 &ctx);
167 if (ret) {
168 if (ret != -ERESTARTSYS)
169 DRM_ERROR("Out of graphics memory for %s"
170 " creation.\n", func->res_func.type_name);
171
172 goto out_ret;
173 }
174
175 usimple = kzalloc(alloc_size, GFP_KERNEL);
176 if (!usimple) {
177 ttm_mem_global_free(vmw_mem_glob(dev_priv),
178 account_size);
179 ret = -ENOMEM;
180 goto out_ret;
181 }
182
183 usimple->simple.func = func;
184 usimple->account_size = account_size;
185 res = &usimple->simple.res;
186 usimple->base.shareable = false;
187 usimple->base.tfile = NULL;
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191
192 ret = vmw_simple_resource_init(dev_priv, &usimple->simple,
193 data, vmw_simple_resource_free);
194 if (ret)
195 goto out_ret;
196
197 tmp = vmw_resource_reference(res);
198 ret = ttm_base_object_init(tfile, &usimple->base, false,
199 func->ttm_res_type,
200 &vmw_simple_resource_base_release, NULL);
201
202 if (ret) {
203 vmw_resource_unreference(&tmp);
204 goto out_err;
205 }
206
207 func->set_arg_handle(data, usimple->base.handle);
208out_err:
209 vmw_resource_unreference(&res);
210out_ret:
211 return ret;
212}
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226struct vmw_resource *
227vmw_simple_resource_lookup(struct ttm_object_file *tfile,
228 uint32_t handle,
229 const struct vmw_simple_resource_func *func)
230{
231 struct vmw_user_simple_resource *usimple;
232 struct ttm_base_object *base;
233 struct vmw_resource *res;
234
235 base = ttm_base_object_lookup(tfile, handle);
236 if (!base) {
237 VMW_DEBUG_USER("Invalid %s handle 0x%08lx.\n",
238 func->res_func.type_name,
239 (unsigned long) handle);
240 return ERR_PTR(-ESRCH);
241 }
242
243 if (ttm_base_object_type(base) != func->ttm_res_type) {
244 ttm_base_object_unref(&base);
245 VMW_DEBUG_USER("Invalid type of %s handle 0x%08lx.\n",
246 func->res_func.type_name,
247 (unsigned long) handle);
248 return ERR_PTR(-EINVAL);
249 }
250
251 usimple = container_of(base, typeof(*usimple), base);
252 res = vmw_resource_reference(&usimple->simple.res);
253 ttm_base_object_unref(&base);
254
255 return res;
256}
257