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24#include "priv.h"
25
26#include <subdev/bar.h>
27
28
29
30
31static void
32nvkm_instobj_load(struct nvkm_instobj *iobj)
33{
34 struct nvkm_memory *memory = &iobj->memory;
35 const u64 size = nvkm_memory_size(memory);
36 void __iomem *map;
37 int i;
38
39 if (!(map = nvkm_kmap(memory))) {
40 for (i = 0; i < size; i += 4)
41 nvkm_wo32(memory, i, iobj->suspend[i / 4]);
42 } else {
43 memcpy_toio(map, iobj->suspend, size);
44 }
45 nvkm_done(memory);
46
47 kvfree(iobj->suspend);
48 iobj->suspend = NULL;
49}
50
51static int
52nvkm_instobj_save(struct nvkm_instobj *iobj)
53{
54 struct nvkm_memory *memory = &iobj->memory;
55 const u64 size = nvkm_memory_size(memory);
56 void __iomem *map;
57 int i;
58
59 iobj->suspend = kvmalloc(size, GFP_KERNEL);
60 if (!iobj->suspend)
61 return -ENOMEM;
62
63 if (!(map = nvkm_kmap(memory))) {
64 for (i = 0; i < size; i += 4)
65 iobj->suspend[i / 4] = nvkm_ro32(memory, i);
66 } else {
67 memcpy_fromio(iobj->suspend, map, size);
68 }
69 nvkm_done(memory);
70 return 0;
71}
72
73void
74nvkm_instobj_dtor(struct nvkm_instmem *imem, struct nvkm_instobj *iobj)
75{
76 spin_lock(&imem->lock);
77 list_del(&iobj->head);
78 spin_unlock(&imem->lock);
79}
80
81void
82nvkm_instobj_ctor(const struct nvkm_memory_func *func,
83 struct nvkm_instmem *imem, struct nvkm_instobj *iobj)
84{
85 nvkm_memory_ctor(func, &iobj->memory);
86 iobj->suspend = NULL;
87 spin_lock(&imem->lock);
88 list_add_tail(&iobj->head, &imem->list);
89 spin_unlock(&imem->lock);
90}
91
92int
93nvkm_instobj_new(struct nvkm_instmem *imem, u32 size, u32 align, bool zero,
94 struct nvkm_memory **pmemory)
95{
96 struct nvkm_subdev *subdev = &imem->subdev;
97 struct nvkm_memory *memory = NULL;
98 u32 offset;
99 int ret;
100
101 ret = imem->func->memory_new(imem, size, align, zero, &memory);
102 if (ret) {
103 nvkm_error(subdev, "OOM: %08x %08x %d\n", size, align, ret);
104 goto done;
105 }
106
107 nvkm_trace(subdev, "new %08x %08x %d: %010llx %010llx\n", size, align,
108 zero, nvkm_memory_addr(memory), nvkm_memory_size(memory));
109
110 if (!imem->func->zero && zero) {
111 void __iomem *map = nvkm_kmap(memory);
112 if (unlikely(!map)) {
113 for (offset = 0; offset < size; offset += 4)
114 nvkm_wo32(memory, offset, 0x00000000);
115 } else {
116 memset_io(map, 0x00, size);
117 }
118 nvkm_done(memory);
119 }
120
121done:
122 if (ret)
123 nvkm_memory_unref(&memory);
124 *pmemory = memory;
125 return ret;
126}
127
128
129
130
131
132u32
133nvkm_instmem_rd32(struct nvkm_instmem *imem, u32 addr)
134{
135 return imem->func->rd32(imem, addr);
136}
137
138void
139nvkm_instmem_wr32(struct nvkm_instmem *imem, u32 addr, u32 data)
140{
141 return imem->func->wr32(imem, addr, data);
142}
143
144void
145nvkm_instmem_boot(struct nvkm_instmem *imem)
146{
147
148
149
150
151 struct nvkm_instobj *iobj, *itmp;
152 spin_lock(&imem->lock);
153 list_for_each_entry_safe(iobj, itmp, &imem->list, head) {
154 list_move_tail(&iobj->head, &imem->boot);
155 }
156 spin_unlock(&imem->lock);
157}
158
159static int
160nvkm_instmem_fini(struct nvkm_subdev *subdev, bool suspend)
161{
162 struct nvkm_instmem *imem = nvkm_instmem(subdev);
163 struct nvkm_instobj *iobj;
164
165 if (suspend) {
166 list_for_each_entry(iobj, &imem->list, head) {
167 int ret = nvkm_instobj_save(iobj);
168 if (ret)
169 return ret;
170 }
171
172 nvkm_bar_bar2_fini(subdev->device);
173
174 list_for_each_entry(iobj, &imem->boot, head) {
175 int ret = nvkm_instobj_save(iobj);
176 if (ret)
177 return ret;
178 }
179 }
180
181 if (imem->func->fini)
182 imem->func->fini(imem);
183
184 return 0;
185}
186
187static int
188nvkm_instmem_init(struct nvkm_subdev *subdev)
189{
190 struct nvkm_instmem *imem = nvkm_instmem(subdev);
191 struct nvkm_instobj *iobj;
192
193 list_for_each_entry(iobj, &imem->boot, head) {
194 if (iobj->suspend)
195 nvkm_instobj_load(iobj);
196 }
197
198 nvkm_bar_bar2_init(subdev->device);
199
200 list_for_each_entry(iobj, &imem->list, head) {
201 if (iobj->suspend)
202 nvkm_instobj_load(iobj);
203 }
204
205 return 0;
206}
207
208static int
209nvkm_instmem_oneinit(struct nvkm_subdev *subdev)
210{
211 struct nvkm_instmem *imem = nvkm_instmem(subdev);
212 if (imem->func->oneinit)
213 return imem->func->oneinit(imem);
214 return 0;
215}
216
217static void *
218nvkm_instmem_dtor(struct nvkm_subdev *subdev)
219{
220 struct nvkm_instmem *imem = nvkm_instmem(subdev);
221 void *data = imem;
222 if (imem->func->dtor)
223 data = imem->func->dtor(imem);
224 mutex_destroy(&imem->mutex);
225 return data;
226}
227
228static const struct nvkm_subdev_func
229nvkm_instmem = {
230 .dtor = nvkm_instmem_dtor,
231 .oneinit = nvkm_instmem_oneinit,
232 .init = nvkm_instmem_init,
233 .fini = nvkm_instmem_fini,
234};
235
236void
237nvkm_instmem_ctor(const struct nvkm_instmem_func *func, struct nvkm_device *device,
238 enum nvkm_subdev_type type, int inst, struct nvkm_instmem *imem)
239{
240 nvkm_subdev_ctor(&nvkm_instmem, device, type, inst, &imem->subdev);
241 imem->func = func;
242 spin_lock_init(&imem->lock);
243 INIT_LIST_HEAD(&imem->list);
244 INIT_LIST_HEAD(&imem->boot);
245 mutex_init(&imem->mutex);
246}
247