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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | /* * Copyright 2012 Red Hat Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: Ben Skeggs */ #include "priv.h" void nvkm_bar_flush(struct nvkm_bar *bar) { if (bar && bar->func->flush) bar->func->flush(bar); } struct nvkm_vmm * nvkm_bar_bar1_vmm(struct nvkm_device *device) { return device->bar->func->bar1.vmm(device->bar); } void nvkm_bar_bar1_reset(struct nvkm_device *device) { struct nvkm_bar *bar = device->bar; if (bar) { bar->func->bar1.init(bar); bar->func->bar1.wait(bar); } } struct nvkm_vmm * nvkm_bar_bar2_vmm(struct nvkm_device *device) { /* Denies access to BAR2 when it's not initialised, used by INSTMEM * to know when object access needs to go through the BAR0 window. */ struct nvkm_bar *bar = device->bar; if (bar && bar->bar2) return bar->func->bar2.vmm(bar); return NULL; } void nvkm_bar_bar2_reset(struct nvkm_device *device) { struct nvkm_bar *bar = device->bar; if (bar && bar->bar2) { bar->func->bar2.init(bar); bar->func->bar2.wait(bar); } } void nvkm_bar_bar2_fini(struct nvkm_device *device) { struct nvkm_bar *bar = device->bar; if (bar && bar->bar2) { bar->func->bar2.fini(bar); bar->bar2 = false; } } void nvkm_bar_bar2_init(struct nvkm_device *device) { struct nvkm_bar *bar = device->bar; if (bar && bar->subdev.oneinit && !bar->bar2 && bar->func->bar2.init) { bar->func->bar2.init(bar); bar->func->bar2.wait(bar); bar->bar2 = true; } } static int nvkm_bar_fini(struct nvkm_subdev *subdev, bool suspend) { struct nvkm_bar *bar = nvkm_bar(subdev); if (bar->func->bar1.fini) bar->func->bar1.fini(bar); return 0; } static int nvkm_bar_init(struct nvkm_subdev *subdev) { struct nvkm_bar *bar = nvkm_bar(subdev); bar->func->bar1.init(bar); bar->func->bar1.wait(bar); if (bar->func->init) bar->func->init(bar); return 0; } static int nvkm_bar_oneinit(struct nvkm_subdev *subdev) { struct nvkm_bar *bar = nvkm_bar(subdev); return bar->func->oneinit(bar); } static void * nvkm_bar_dtor(struct nvkm_subdev *subdev) { struct nvkm_bar *bar = nvkm_bar(subdev); nvkm_bar_bar2_fini(subdev->device); return bar->func->dtor(bar); } static const struct nvkm_subdev_func nvkm_bar = { .dtor = nvkm_bar_dtor, .oneinit = nvkm_bar_oneinit, .init = nvkm_bar_init, .fini = nvkm_bar_fini, }; void nvkm_bar_ctor(const struct nvkm_bar_func *func, struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_bar *bar) { nvkm_subdev_ctor(&nvkm_bar, device, type, inst, &bar->subdev); bar->func = func; spin_lock_init(&bar->lock); } |