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.
27 nvkm_bar_flush(struct nvkm_bar *bar)
29 if (bar && bar->func->flush)
30 bar->func->flush(bar);
34 nvkm_bar_bar1_vmm(struct nvkm_device *device)
36 return device->bar->func->bar1.vmm(device->bar);
40 nvkm_bar_bar2_vmm(struct nvkm_device *device)
42 /* Denies access to BAR2 when it's not initialised, used by INSTMEM
43 * to know when object access needs to go through the BAR0 window.
45 struct nvkm_bar *bar = device->bar;
47 return bar->func->bar2.vmm(bar);
52 nvkm_bar_bar2_fini(struct nvkm_device *device)
54 struct nvkm_bar *bar = device->bar;
55 if (bar && bar->bar2) {
56 bar->func->bar2.fini(bar);
62 nvkm_bar_bar2_init(struct nvkm_device *device)
64 struct nvkm_bar *bar = device->bar;
65 if (bar && bar->subdev.oneinit && !bar->bar2 && bar->func->bar2.init) {
66 bar->func->bar2.init(bar);
67 bar->func->bar2.wait(bar);
73 nvkm_bar_fini(struct nvkm_subdev *subdev, bool suspend)
75 struct nvkm_bar *bar = nvkm_bar(subdev);
76 if (bar->func->bar1.fini)
77 bar->func->bar1.fini(bar);
82 nvkm_bar_init(struct nvkm_subdev *subdev)
84 struct nvkm_bar *bar = nvkm_bar(subdev);
85 bar->func->bar1.init(bar);
86 bar->func->bar1.wait(bar);
93 nvkm_bar_oneinit(struct nvkm_subdev *subdev)
95 struct nvkm_bar *bar = nvkm_bar(subdev);
96 return bar->func->oneinit(bar);
100 nvkm_bar_dtor(struct nvkm_subdev *subdev)
102 struct nvkm_bar *bar = nvkm_bar(subdev);
103 nvkm_bar_bar2_fini(subdev->device);
104 return bar->func->dtor(bar);
107 static const struct nvkm_subdev_func
109 .dtor = nvkm_bar_dtor,
110 .oneinit = nvkm_bar_oneinit,
111 .init = nvkm_bar_init,
112 .fini = nvkm_bar_fini,
116 nvkm_bar_ctor(const struct nvkm_bar_func *func, struct nvkm_device *device,
117 int index, struct nvkm_bar *bar)
119 nvkm_subdev_ctor(&nvkm_bar, device, index, &bar->subdev);
121 spin_lock_init(&bar->lock);