2 * Copyright 2012 Red Hat Inc.
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5 * copy of this software and associated documentation files (the "Software"),
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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.
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15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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26 #include <core/memory.h>
27 #include <subdev/bar.h>
29 /******************************************************************************
30 * instmem object base implementation
31 *****************************************************************************/
32 #define nvkm_instobj(p) container_of((p), struct nvkm_instobj, memory)
35 struct nvkm_memory memory;
36 struct nvkm_memory *parent;
37 struct nvkm_instmem *imem;
38 struct list_head head;
43 static enum nvkm_memory_target
44 nvkm_instobj_target(struct nvkm_memory *memory)
46 memory = nvkm_instobj(memory)->parent;
47 return nvkm_memory_target(memory);
51 nvkm_instobj_addr(struct nvkm_memory *memory)
53 memory = nvkm_instobj(memory)->parent;
54 return nvkm_memory_addr(memory);
58 nvkm_instobj_size(struct nvkm_memory *memory)
60 memory = nvkm_instobj(memory)->parent;
61 return nvkm_memory_size(memory);
65 nvkm_instobj_release(struct nvkm_memory *memory)
67 struct nvkm_instobj *iobj = nvkm_instobj(memory);
68 nvkm_bar_flush(iobj->imem->subdev.device->bar);
72 nvkm_instobj_acquire(struct nvkm_memory *memory)
74 return nvkm_instobj(memory)->map;
78 nvkm_instobj_rd32(struct nvkm_memory *memory, u64 offset)
80 return ioread32_native(nvkm_instobj(memory)->map + offset);
84 nvkm_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data)
86 iowrite32_native(data, nvkm_instobj(memory)->map + offset);
90 nvkm_instobj_map(struct nvkm_memory *memory, struct nvkm_vma *vma, u64 offset)
92 memory = nvkm_instobj(memory)->parent;
93 nvkm_memory_map(memory, vma, offset);
97 nvkm_instobj_dtor(struct nvkm_memory *memory)
99 struct nvkm_instobj *iobj = nvkm_instobj(memory);
100 list_del(&iobj->head);
101 nvkm_memory_del(&iobj->parent);
105 const struct nvkm_memory_func
106 nvkm_instobj_func = {
107 .dtor = nvkm_instobj_dtor,
108 .target = nvkm_instobj_target,
109 .addr = nvkm_instobj_addr,
110 .size = nvkm_instobj_size,
111 .acquire = nvkm_instobj_acquire,
112 .release = nvkm_instobj_release,
113 .rd32 = nvkm_instobj_rd32,
114 .wr32 = nvkm_instobj_wr32,
115 .map = nvkm_instobj_map,
119 nvkm_instobj_boot(struct nvkm_memory *memory, struct nvkm_vm *vm)
121 memory = nvkm_instobj(memory)->parent;
122 nvkm_memory_boot(memory, vm);
126 nvkm_instobj_release_slow(struct nvkm_memory *memory)
128 struct nvkm_instobj *iobj = nvkm_instobj(memory);
129 nvkm_instobj_release(memory);
130 nvkm_done(iobj->parent);
133 static void __iomem *
134 nvkm_instobj_acquire_slow(struct nvkm_memory *memory)
136 struct nvkm_instobj *iobj = nvkm_instobj(memory);
137 iobj->map = nvkm_kmap(iobj->parent);
139 memory->func = &nvkm_instobj_func;
144 nvkm_instobj_rd32_slow(struct nvkm_memory *memory, u64 offset)
146 struct nvkm_instobj *iobj = nvkm_instobj(memory);
147 return nvkm_ro32(iobj->parent, offset);
151 nvkm_instobj_wr32_slow(struct nvkm_memory *memory, u64 offset, u32 data)
153 struct nvkm_instobj *iobj = nvkm_instobj(memory);
154 return nvkm_wo32(iobj->parent, offset, data);
157 const struct nvkm_memory_func
158 nvkm_instobj_func_slow = {
159 .dtor = nvkm_instobj_dtor,
160 .target = nvkm_instobj_target,
161 .addr = nvkm_instobj_addr,
162 .size = nvkm_instobj_size,
163 .boot = nvkm_instobj_boot,
164 .acquire = nvkm_instobj_acquire_slow,
165 .release = nvkm_instobj_release_slow,
166 .rd32 = nvkm_instobj_rd32_slow,
167 .wr32 = nvkm_instobj_wr32_slow,
168 .map = nvkm_instobj_map,
172 nvkm_instobj_new(struct nvkm_instmem *imem, u32 size, u32 align, bool zero,
173 struct nvkm_memory **pmemory)
175 struct nvkm_memory *memory = NULL;
176 struct nvkm_instobj *iobj;
180 ret = imem->func->memory_new(imem, size, align, zero, &memory);
184 if (!imem->func->persistent) {
185 if (!(iobj = kzalloc(sizeof(*iobj), GFP_KERNEL))) {
190 nvkm_memory_ctor(&nvkm_instobj_func_slow, &iobj->memory);
191 iobj->parent = memory;
193 list_add_tail(&iobj->head, &imem->list);
194 memory = &iobj->memory;
197 if (!imem->func->zero && zero) {
198 void __iomem *map = nvkm_kmap(memory);
199 if (unlikely(!map)) {
200 for (offset = 0; offset < size; offset += 4)
201 nvkm_wo32(memory, offset, 0x00000000);
203 memset_io(map, 0x00, size);
210 nvkm_memory_del(&memory);
215 /******************************************************************************
216 * instmem subdev base implementation
217 *****************************************************************************/
220 nvkm_instmem_rd32(struct nvkm_instmem *imem, u32 addr)
222 return imem->func->rd32(imem, addr);
226 nvkm_instmem_wr32(struct nvkm_instmem *imem, u32 addr, u32 data)
228 return imem->func->wr32(imem, addr, data);
232 nvkm_instmem_fini(struct nvkm_subdev *subdev, bool suspend)
234 struct nvkm_instmem *imem = nvkm_instmem(subdev);
235 struct nvkm_instobj *iobj;
238 if (imem->func->fini)
239 imem->func->fini(imem);
242 list_for_each_entry(iobj, &imem->list, head) {
243 struct nvkm_memory *memory = iobj->parent;
244 u64 size = nvkm_memory_size(memory);
246 iobj->suspend = vmalloc(size);
250 for (i = 0; i < size; i += 4)
251 iobj->suspend[i / 4] = nvkm_ro32(memory, i);
259 nvkm_instmem_oneinit(struct nvkm_subdev *subdev)
261 struct nvkm_instmem *imem = nvkm_instmem(subdev);
262 if (imem->func->oneinit)
263 return imem->func->oneinit(imem);
268 nvkm_instmem_init(struct nvkm_subdev *subdev)
270 struct nvkm_instmem *imem = nvkm_instmem(subdev);
271 struct nvkm_instobj *iobj;
274 list_for_each_entry(iobj, &imem->list, head) {
276 struct nvkm_memory *memory = iobj->parent;
277 u64 size = nvkm_memory_size(memory);
278 for (i = 0; i < size; i += 4)
279 nvkm_wo32(memory, i, iobj->suspend[i / 4]);
280 vfree(iobj->suspend);
281 iobj->suspend = NULL;
289 nvkm_instmem_dtor(struct nvkm_subdev *subdev)
291 struct nvkm_instmem *imem = nvkm_instmem(subdev);
292 if (imem->func->dtor)
293 return imem->func->dtor(imem);
297 static const struct nvkm_subdev_func
299 .dtor = nvkm_instmem_dtor,
300 .oneinit = nvkm_instmem_oneinit,
301 .init = nvkm_instmem_init,
302 .fini = nvkm_instmem_fini,
306 nvkm_instmem_ctor(const struct nvkm_instmem_func *func,
307 struct nvkm_device *device, int index,
308 struct nvkm_instmem *imem)
310 nvkm_subdev_ctor(&nvkm_instmem, device, index, 0, &imem->subdev);
312 INIT_LIST_HEAD(&imem->list);