drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg94.c

   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 "ior.h"
  25
  26 #include <subdev/timer.h>
  27
  28 void
  29 g94_sor_dp_watermark(struct nvkm_ior *sor, int head, u8 watermark)
  30 {
  31         struct nvkm_device *device = sor->disp->engine.subdev.device;
  32         const u32 loff = nv50_sor_link(sor);
  33         nvkm_mask(device, 0x61c128 + loff, 0x0000003f, watermark);
  34 }
  35
  36 void
  37 g94_sor_dp_activesym(struct nvkm_ior *sor, int head,
  38                      u8 TU, u8 VTUa, u8 VTUf, u8 VTUi)
  39 {
  40         struct nvkm_device *device = sor->disp->engine.subdev.device;
  41         const u32 loff = nv50_sor_link(sor);
  42         nvkm_mask(device, 0x61c10c + loff, 0x000001fc, TU << 2);
  43         nvkm_mask(device, 0x61c128 + loff, 0x010f7f00, VTUa << 24 |
  44                                                        VTUf << 16 |
  45                                                        VTUi << 8);
  46 }
  47
  48 void
  49 g94_sor_dp_audio_sym(struct nvkm_ior *sor, int head, u16 h, u32 v)
  50 {
  51         struct nvkm_device *device = sor->disp->engine.subdev.device;
  52         const u32 soff = nv50_ior_base(sor);
  53         nvkm_mask(device, 0x61c1e8 + soff, 0x0000ffff, h);
  54         nvkm_mask(device, 0x61c1ec + soff, 0x00ffffff, v);
  55 }
  56
  57 void
  58 g94_sor_dp_drive(struct nvkm_ior *sor, int ln, int pc, int dc, int pe, int pu)
  59 {
  60         struct nvkm_device *device = sor->disp->engine.subdev.device;
  61         const u32  loff = nv50_sor_link(sor);
  62         const u32 shift = sor->func->dp.lanes[ln] * 8;
  63         u32 data[3];
  64
  65         data[0] = nvkm_rd32(device, 0x61c118 + loff) & ~(0x000000ff << shift);
  66         data[1] = nvkm_rd32(device, 0x61c120 + loff) & ~(0x000000ff << shift);
  67         data[2] = nvkm_rd32(device, 0x61c130 + loff);
  68         if ((data[2] & 0x0000ff00) < (pu << 8) || ln == 0)
  69                 data[2] = (data[2] & ~0x0000ff00) | (pu << 8);
  70         nvkm_wr32(device, 0x61c118 + loff, data[0] | (dc << shift));
  71         nvkm_wr32(device, 0x61c120 + loff, data[1] | (pe << shift));
  72         nvkm_wr32(device, 0x61c130 + loff, data[2]);
  73 }
  74
  75 void
  76 g94_sor_dp_pattern(struct nvkm_ior *sor, int pattern)
  77 {
  78         struct nvkm_device *device = sor->disp->engine.subdev.device;
  79         const u32 loff = nv50_sor_link(sor);
  80         nvkm_mask(device, 0x61c10c + loff, 0x0f000000, pattern << 24);
  81 }
  82
  83 void
  84 g94_sor_dp_power(struct nvkm_ior *sor, int nr)
  85 {
  86         struct nvkm_device *device = sor->disp->engine.subdev.device;
  87         const u32 soff = nv50_ior_base(sor);
  88         const u32 loff = nv50_sor_link(sor);
  89         u32 mask = 0, i;
  90
  91         for (i = 0; i < nr; i++)
  92                 mask |= 1 << sor->func->dp.lanes[i];
  93
  94         nvkm_mask(device, 0x61c130 + loff, 0x0000000f, mask);
  95         nvkm_mask(device, 0x61c034 + soff, 0x80000000, 0x80000000);
  96         nvkm_msec(device, 2000,
  97                 if (!(nvkm_rd32(device, 0x61c034 + soff) & 0x80000000))
  98                         break;
  99         );
 100 }
 101
 102 int
 103 g94_sor_dp_links(struct nvkm_ior *sor, struct nvkm_i2c_aux *aux)
 104 {
 105         struct nvkm_device *device = sor->disp->engine.subdev.device;
 106         const u32 soff = nv50_ior_base(sor);
 107         const u32 loff = nv50_sor_link(sor);
 108         u32 dpctrl = 0x00000000;
 109         u32 clksor = 0x00000000;
 110
 111         dpctrl |= ((1 << sor->dp.nr) - 1) << 16;
 112         if (sor->dp.ef)
 113                 dpctrl |= 0x00004000;
 114         if (sor->dp.bw > 0x06)
 115                 clksor |= 0x00040000;
 116
 117         nvkm_mask(device, 0x614300 + soff, 0x000c0000, clksor);
 118         nvkm_mask(device, 0x61c10c + loff, 0x001f4000, dpctrl);
 119         return 0;
 120 }
 121
 122 static bool
 123 g94_sor_war_needed(struct nvkm_ior *sor)
 124 {
 125         struct nvkm_device *device = sor->disp->engine.subdev.device;
 126         const u32 soff = nv50_ior_base(sor);
 127         if (sor->asy.proto == TMDS) {
 128                 switch (nvkm_rd32(device, 0x614300 + soff) & 0x00030000) {
 129                 case 0x00000000:
 130                 case 0x00030000:
 131                         return true;
 132                 default:
 133                         break;
 134                 }
 135         }
 136         return false;
 137 }
 138
 139 static void
 140 g94_sor_war_update_sppll1(struct nvkm_disp *disp)
 141 {
 142         struct nvkm_device *device = disp->engine.subdev.device;
 143         struct nvkm_ior *ior;
 144         bool used = false;
 145         u32 clksor;
 146
 147         list_for_each_entry(ior, &disp->ior, head) {
 148                 if (ior->type != SOR)
 149                         continue;
 150
 151                 clksor = nvkm_rd32(device, 0x614300 + nv50_ior_base(ior));
 152                 switch (clksor & 0x03000000) {
 153                 case 0x02000000:
 154                 case 0x03000000:
 155                         used = true;
 156                         break;
 157                 default:
 158                         break;
 159                 }
 160         }
 161
 162         if (used)
 163                 return;
 164
 165         nvkm_mask(device, 0x00e840, 0x80000000, 0x00000000);
 166 }
 167
 168 static void
 169 g94_sor_war_3(struct nvkm_ior *sor)
 170 {
 171         struct nvkm_device *device = sor->disp->engine.subdev.device;
 172         const u32 soff = nv50_ior_base(sor);
 173         u32 sorpwr;
 174
 175         if (!g94_sor_war_needed(sor))
 176                 return;
 177
 178         sorpwr = nvkm_rd32(device, 0x61c004 + soff);
 179         if (sorpwr & 0x00000001) {
 180                 u32 seqctl = nvkm_rd32(device, 0x61c030 + soff);
 181                 u32  pd_pc = (seqctl & 0x00000f00) >> 8;
 182                 u32  pu_pc =  seqctl & 0x0000000f;
 183
 184                 nvkm_wr32(device, 0x61c040 + soff + pd_pc * 4, 0x1f008000);
 185
 186                 nvkm_msec(device, 2000,
 187                         if (!(nvkm_rd32(device, 0x61c030 + soff) & 0x10000000))
 188                                 break;
 189                 );
 190                 nvkm_mask(device, 0x61c004 + soff, 0x80000001, 0x80000000);
 191                 nvkm_msec(device, 2000,
 192                         if (!(nvkm_rd32(device, 0x61c030 + soff) & 0x10000000))
 193                                 break;
 194                 );
 195
 196                 nvkm_wr32(device, 0x61c040 + soff + pd_pc * 4, 0x00002000);
 197                 nvkm_wr32(device, 0x61c040 + soff + pu_pc * 4, 0x1f000000);
 198         }
 199
 200         nvkm_mask(device, 0x61c10c + soff, 0x00000001, 0x00000000);
 201         nvkm_mask(device, 0x614300 + soff, 0x03000000, 0x00000000);
 202
 203         if (sorpwr & 0x00000001) {
 204                 nvkm_mask(device, 0x61c004 + soff, 0x80000001, 0x80000001);
 205         }
 206
 207         g94_sor_war_update_sppll1(sor->disp);
 208 }
 209
 210 static void
 211 g94_sor_war_2(struct nvkm_ior *sor)
 212 {
 213         struct nvkm_device *device = sor->disp->engine.subdev.device;
 214         const u32 soff = nv50_ior_base(sor);
 215
 216         if (!g94_sor_war_needed(sor))
 217                 return;
 218
 219         nvkm_mask(device, 0x00e840, 0x80000000, 0x80000000);
 220         nvkm_mask(device, 0x614300 + soff, 0x03000000, 0x03000000);
 221         nvkm_mask(device, 0x61c10c + soff, 0x00000001, 0x00000001);
 222
 223         nvkm_mask(device, 0x61c00c + soff, 0x0f000000, 0x00000000);
 224         nvkm_mask(device, 0x61c008 + soff, 0xff000000, 0x14000000);
 225         nvkm_usec(device, 400, NVKM_DELAY);
 226         nvkm_mask(device, 0x61c008 + soff, 0xff000000, 0x00000000);
 227         nvkm_mask(device, 0x61c00c + soff, 0x0f000000, 0x01000000);
 228
 229         if (nvkm_rd32(device, 0x61c004 + soff) & 0x00000001) {
 230                 u32 seqctl = nvkm_rd32(device, 0x61c030 + soff);
 231                 u32  pu_pc = seqctl & 0x0000000f;
 232                 nvkm_wr32(device, 0x61c040 + soff + pu_pc * 4, 0x1f008000);
 233         }
 234 }
 235
 236 void
 237 g94_sor_state(struct nvkm_ior *sor, struct nvkm_ior_state *state)
 238 {
 239         struct nvkm_device *device = sor->disp->engine.subdev.device;
 240         const u32 coff = sor->id * 8 + (state == &sor->arm) * 4;
 241         u32 ctrl = nvkm_rd32(device, 0x610794 + coff);
 242
 243         state->proto_evo = (ctrl & 0x00000f00) >> 8;
 244         switch (state->proto_evo) {
 245         case 0: state->proto = LVDS; state->link = 1; break;
 246         case 1: state->proto = TMDS; state->link = 1; break;
 247         case 2: state->proto = TMDS; state->link = 2; break;
 248         case 5: state->proto = TMDS; state->link = 3; break;
 249         case 8: state->proto =   DP; state->link = 1; break;
 250         case 9: state->proto =   DP; state->link = 2; break;
 251         default:
 252                 state->proto = UNKNOWN;
 253                 break;
 254         }
 255
 256         state->head = ctrl & 0x00000003;
 257         nv50_pior_depth(sor, state, ctrl);
 258 }
 259
 260 static const struct nvkm_ior_func
 261 g94_sor = {
 262         .state = g94_sor_state,
 263         .power = nv50_sor_power,
 264         .clock = nv50_sor_clock,
 265         .war_2 = g94_sor_war_2,
 266         .war_3 = g94_sor_war_3,
 267         .dp = {
 268                 .lanes = { 2, 1, 0, 3},
 269                 .links = g94_sor_dp_links,
 270                 .power = g94_sor_dp_power,
 271                 .pattern = g94_sor_dp_pattern,
 272                 .drive = g94_sor_dp_drive,
 273                 .audio_sym = g94_sor_dp_audio_sym,
 274                 .activesym = g94_sor_dp_activesym,
 275                 .watermark = g94_sor_dp_watermark,
 276         },
 277 };
 278
 279 int
 280 g94_sor_new(struct nvkm_disp *disp, int id)
 281 {
 282         return nv50_sor_new_(&g94_sor, disp, id);
 283 }