1 /* 2 * Copyright 2012 Red Hat Inc. 3 * 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: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 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. 21 * 22 * Authors: Ben Skeggs 23 */ 24 #include "priv.h" 25 26 #include <core/client.h> 27 #include <core/device.h> 28 29 #include <nvif/class.h> 30 #include <nvif/unpack.h> 31 32 struct nv04_disp_priv { 33 struct nvkm_disp base; 34 }; 35 36 static int 37 nv04_disp_scanoutpos(struct nvkm_object *object, struct nv04_disp_priv *priv, 38 void *data, u32 size, int head) 39 { 40 const u32 hoff = head * 0x2000; 41 union { 42 struct nv04_disp_scanoutpos_v0 v0; 43 } *args = data; 44 u32 line; 45 int ret; 46 47 nv_ioctl(object, "disp scanoutpos size %d\n", size); 48 if (nvif_unpack(args->v0, 0, 0, false)) { 49 nv_ioctl(object, "disp scanoutpos vers %d\n", args->v0.version); 50 args->v0.vblanks = nv_rd32(priv, 0x680800 + hoff) & 0xffff; 51 args->v0.vtotal = nv_rd32(priv, 0x680804 + hoff) & 0xffff; 52 args->v0.vblanke = args->v0.vtotal - 1; 53 54 args->v0.hblanks = nv_rd32(priv, 0x680820 + hoff) & 0xffff; 55 args->v0.htotal = nv_rd32(priv, 0x680824 + hoff) & 0xffff; 56 args->v0.hblanke = args->v0.htotal - 1; 57 58 /* 59 * If output is vga instead of digital then vtotal/htotal is 60 * invalid so we have to give up and trigger the timestamping 61 * fallback in the drm core. 62 */ 63 if (!args->v0.vtotal || !args->v0.htotal) 64 return -ENOTSUPP; 65 66 args->v0.time[0] = ktime_to_ns(ktime_get()); 67 line = nv_rd32(priv, 0x600868 + hoff); 68 args->v0.time[1] = ktime_to_ns(ktime_get()); 69 args->v0.hline = (line & 0xffff0000) >> 16; 70 args->v0.vline = (line & 0x0000ffff); 71 } else 72 return ret; 73 74 return 0; 75 } 76 77 static int 78 nv04_disp_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size) 79 { 80 union { 81 struct nv04_disp_mthd_v0 v0; 82 } *args = data; 83 struct nv04_disp_priv *priv = (void *)object->engine; 84 int head, ret; 85 86 nv_ioctl(object, "disp mthd size %d\n", size); 87 if (nvif_unpack(args->v0, 0, 0, true)) { 88 nv_ioctl(object, "disp mthd vers %d mthd %02x head %d\n", 89 args->v0.version, args->v0.method, args->v0.head); 90 mthd = args->v0.method; 91 head = args->v0.head; 92 } else 93 return ret; 94 95 if (head < 0 || head >= 2) 96 return -ENXIO; 97 98 switch (mthd) { 99 case NV04_DISP_SCANOUTPOS: 100 return nv04_disp_scanoutpos(object, priv, data, size, head); 101 default: 102 break; 103 } 104 105 return -EINVAL; 106 } 107 108 static struct nvkm_ofuncs 109 nv04_disp_ofuncs = { 110 .ctor = _nvkm_object_ctor, 111 .dtor = nvkm_object_destroy, 112 .init = nvkm_object_init, 113 .fini = nvkm_object_fini, 114 .mthd = nv04_disp_mthd, 115 .ntfy = nvkm_disp_ntfy, 116 }; 117 118 static struct nvkm_oclass 119 nv04_disp_sclass[] = { 120 { NV04_DISP, &nv04_disp_ofuncs }, 121 {}, 122 }; 123 124 /******************************************************************************* 125 * Display engine implementation 126 ******************************************************************************/ 127 128 static void 129 nv04_disp_vblank_init(struct nvkm_event *event, int type, int head) 130 { 131 struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank); 132 nv_wr32(disp, 0x600140 + (head * 0x2000) , 0x00000001); 133 } 134 135 static void 136 nv04_disp_vblank_fini(struct nvkm_event *event, int type, int head) 137 { 138 struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank); 139 nv_wr32(disp, 0x600140 + (head * 0x2000) , 0x00000000); 140 } 141 142 static const struct nvkm_event_func 143 nv04_disp_vblank_func = { 144 .ctor = nvkm_disp_vblank_ctor, 145 .init = nv04_disp_vblank_init, 146 .fini = nv04_disp_vblank_fini, 147 }; 148 149 static void 150 nv04_disp_intr(struct nvkm_subdev *subdev) 151 { 152 struct nv04_disp_priv *priv = (void *)subdev; 153 u32 crtc0 = nv_rd32(priv, 0x600100); 154 u32 crtc1 = nv_rd32(priv, 0x602100); 155 u32 pvideo; 156 157 if (crtc0 & 0x00000001) { 158 nvkm_disp_vblank(&priv->base, 0); 159 nv_wr32(priv, 0x600100, 0x00000001); 160 } 161 162 if (crtc1 & 0x00000001) { 163 nvkm_disp_vblank(&priv->base, 1); 164 nv_wr32(priv, 0x602100, 0x00000001); 165 } 166 167 if (nv_device(priv)->chipset >= 0x10 && 168 nv_device(priv)->chipset <= 0x40) { 169 pvideo = nv_rd32(priv, 0x8100); 170 if (pvideo & ~0x11) 171 nv_info(priv, "PVIDEO intr: %08x\n", pvideo); 172 nv_wr32(priv, 0x8100, pvideo); 173 } 174 } 175 176 static int 177 nv04_disp_ctor(struct nvkm_object *parent, struct nvkm_object *engine, 178 struct nvkm_oclass *oclass, void *data, u32 size, 179 struct nvkm_object **pobject) 180 { 181 struct nv04_disp_priv *priv; 182 int ret; 183 184 ret = nvkm_disp_create(parent, engine, oclass, 2, "DISPLAY", 185 "display", &priv); 186 *pobject = nv_object(priv); 187 if (ret) 188 return ret; 189 190 nv_engine(priv)->sclass = nv04_disp_sclass; 191 nv_subdev(priv)->intr = nv04_disp_intr; 192 return 0; 193 } 194 195 struct nvkm_oclass * 196 nv04_disp_oclass = &(struct nvkm_disp_impl) { 197 .base.handle = NV_ENGINE(DISP, 0x04), 198 .base.ofuncs = &(struct nvkm_ofuncs) { 199 .ctor = nv04_disp_ctor, 200 .dtor = _nvkm_disp_dtor, 201 .init = _nvkm_disp_init, 202 .fini = _nvkm_disp_fini, 203 }, 204 .vblank = &nv04_disp_vblank_func, 205 }.base; 206