2 * Copyright 2012 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.
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
);