drivers/gpu/drm/i915/intel_display.h

   1 /*
   2  * Copyright © 2006-2017 Intel Corporation
   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 (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  */
  24
  25 #ifndef _INTEL_DISPLAY_H_
  26 #define _INTEL_DISPLAY_H_
  27
  28 enum pipe {
  29         INVALID_PIPE = -1,
  30
  31         PIPE_A = 0,
  32         PIPE_B,
  33         PIPE_C,
  34         _PIPE_EDP,
  35
  36         I915_MAX_PIPES = _PIPE_EDP
  37 };
  38
  39 #define pipe_name(p) ((p) + 'A')
  40
  41 enum transcoder {
  42         TRANSCODER_A = 0,
  43         TRANSCODER_B,
  44         TRANSCODER_C,
  45         TRANSCODER_EDP,
  46         TRANSCODER_DSI_A,
  47         TRANSCODER_DSI_C,
  48
  49         I915_MAX_TRANSCODERS
  50 };
  51
  52 static inline const char *transcoder_name(enum transcoder transcoder)
  53 {
  54         switch (transcoder) {
  55         case TRANSCODER_A:
  56                 return "A";
  57         case TRANSCODER_B:
  58                 return "B";
  59         case TRANSCODER_C:
  60                 return "C";
  61         case TRANSCODER_EDP:
  62                 return "EDP";
  63         case TRANSCODER_DSI_A:
  64                 return "DSI A";
  65         case TRANSCODER_DSI_C:
  66                 return "DSI C";
  67         default:
  68                 return "<invalid>";
  69         }
  70 }
  71
  72 static inline bool transcoder_is_dsi(enum transcoder transcoder)
  73 {
  74         return transcoder == TRANSCODER_DSI_A || transcoder == TRANSCODER_DSI_C;
  75 }
  76
  77 /*
  78  * Global legacy plane identifier. Valid only for primary/sprite
  79  * planes on pre-g4x, and only for primary planes on g4x-bdw.
  80  */
  81 enum i9xx_plane_id {
  82         PLANE_A,
  83         PLANE_B,
  84         PLANE_C,
  85 };
  86
  87 #define plane_name(p) ((p) + 'A')
  88 #define sprite_name(p, s) ((p) * INTEL_INFO(dev_priv)->num_sprites[(p)] + (s) + 'A')
  89
  90 /*
  91  * Per-pipe plane identifier.
  92  * I915_MAX_PLANES in the enum below is the maximum (across all platforms)
  93  * number of planes per CRTC.  Not all platforms really have this many planes,
  94  * which means some arrays of size I915_MAX_PLANES may have unused entries
  95  * between the topmost sprite plane and the cursor plane.
  96  *
  97  * This is expected to be passed to various register macros
  98  * (eg. PLANE_CTL(), PS_PLANE_SEL(), etc.) so adjust with care.
  99  */
 100 enum plane_id {
 101         PLANE_PRIMARY,
 102         PLANE_SPRITE0,
 103         PLANE_SPRITE1,
 104         PLANE_SPRITE2,
 105         PLANE_CURSOR,
 106
 107         I915_MAX_PLANES,
 108 };
 109
 110 #define for_each_plane_id_on_crtc(__crtc, __p) \
 111         for ((__p) = PLANE_PRIMARY; (__p) < I915_MAX_PLANES; (__p)++) \
 112                 for_each_if((__crtc)->plane_ids_mask & BIT(__p))
 113
 114 enum port {
 115         PORT_NONE = -1,
 116
 117         PORT_A = 0,
 118         PORT_B,
 119         PORT_C,
 120         PORT_D,
 121         PORT_E,
 122         PORT_F,
 123
 124         I915_MAX_PORTS
 125 };
 126
 127 #define port_name(p) ((p) + 'A')
 128
 129 /*
 130  * Ports identifier referenced from other drivers.
 131  * Expected to remain stable over time
 132  */
 133 static inline const char *port_identifier(enum port port)
 134 {
 135         switch (port) {
 136         case PORT_A:
 137                 return "Port A";
 138         case PORT_B:
 139                 return "Port B";
 140         case PORT_C:
 141                 return "Port C";
 142         case PORT_D:
 143                 return "Port D";
 144         case PORT_E:
 145                 return "Port E";
 146         case PORT_F:
 147                 return "Port F";
 148         default:
 149                 return "<invalid>";
 150         }
 151 }
 152
 153 enum tc_port {
 154         PORT_TC_NONE = -1,
 155
 156         PORT_TC1 = 0,
 157         PORT_TC2,
 158         PORT_TC3,
 159         PORT_TC4,
 160
 161         I915_MAX_TC_PORTS
 162 };
 163
 164 enum dpio_channel {
 165         DPIO_CH0,
 166         DPIO_CH1
 167 };
 168
 169 enum dpio_phy {
 170         DPIO_PHY0,
 171         DPIO_PHY1,
 172         DPIO_PHY2,
 173 };
 174
 175 #define I915_NUM_PHYS_VLV 2
 176
 177 enum aux_ch {
 178         AUX_CH_A,
 179         AUX_CH_B,
 180         AUX_CH_C,
 181         AUX_CH_D,
 182         AUX_CH_E, /* ICL+ */
 183         AUX_CH_F,
 184 };
 185
 186 #define aux_ch_name(a) ((a) + 'A')
 187
 188 enum intel_display_power_domain {
 189         POWER_DOMAIN_PIPE_A,
 190         POWER_DOMAIN_PIPE_B,
 191         POWER_DOMAIN_PIPE_C,
 192         POWER_DOMAIN_PIPE_A_PANEL_FITTER,
 193         POWER_DOMAIN_PIPE_B_PANEL_FITTER,
 194         POWER_DOMAIN_PIPE_C_PANEL_FITTER,
 195         POWER_DOMAIN_TRANSCODER_A,
 196         POWER_DOMAIN_TRANSCODER_B,
 197         POWER_DOMAIN_TRANSCODER_C,
 198         POWER_DOMAIN_TRANSCODER_EDP,
 199         POWER_DOMAIN_TRANSCODER_DSI_A,
 200         POWER_DOMAIN_TRANSCODER_DSI_C,
 201         POWER_DOMAIN_PORT_DDI_A_LANES,
 202         POWER_DOMAIN_PORT_DDI_B_LANES,
 203         POWER_DOMAIN_PORT_DDI_C_LANES,
 204         POWER_DOMAIN_PORT_DDI_D_LANES,
 205         POWER_DOMAIN_PORT_DDI_E_LANES,
 206         POWER_DOMAIN_PORT_DDI_F_LANES,
 207         POWER_DOMAIN_PORT_DDI_A_IO,
 208         POWER_DOMAIN_PORT_DDI_B_IO,
 209         POWER_DOMAIN_PORT_DDI_C_IO,
 210         POWER_DOMAIN_PORT_DDI_D_IO,
 211         POWER_DOMAIN_PORT_DDI_E_IO,
 212         POWER_DOMAIN_PORT_DDI_F_IO,
 213         POWER_DOMAIN_PORT_DSI,
 214         POWER_DOMAIN_PORT_CRT,
 215         POWER_DOMAIN_PORT_OTHER,
 216         POWER_DOMAIN_VGA,
 217         POWER_DOMAIN_AUDIO,
 218         POWER_DOMAIN_PLLS,
 219         POWER_DOMAIN_AUX_A,
 220         POWER_DOMAIN_AUX_B,
 221         POWER_DOMAIN_AUX_C,
 222         POWER_DOMAIN_AUX_D,
 223         POWER_DOMAIN_AUX_E,
 224         POWER_DOMAIN_AUX_F,
 225         POWER_DOMAIN_AUX_IO_A,
 226         POWER_DOMAIN_AUX_TBT1,
 227         POWER_DOMAIN_AUX_TBT2,
 228         POWER_DOMAIN_AUX_TBT3,
 229         POWER_DOMAIN_AUX_TBT4,
 230         POWER_DOMAIN_GMBUS,
 231         POWER_DOMAIN_MODESET,
 232         POWER_DOMAIN_GT_IRQ,
 233         POWER_DOMAIN_INIT,
 234
 235         POWER_DOMAIN_NUM,
 236 };
 237
 238 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
 239 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
 240                 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
 241 #define POWER_DOMAIN_TRANSCODER(tran) \
 242         ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
 243          (tran) + POWER_DOMAIN_TRANSCODER_A)
 244
 245 /* Used by dp and fdi links */
 246 struct intel_link_m_n {
 247         u32 tu;
 248         u32 gmch_m;
 249         u32 gmch_n;
 250         u32 link_m;
 251         u32 link_n;
 252 };
 253
 254 #define for_each_pipe(__dev_priv, __p) \
 255         for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
 256
 257 #define for_each_pipe_masked(__dev_priv, __p, __mask) \
 258         for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++) \
 259                 for_each_if((__mask) & BIT(__p))
 260
 261 #define for_each_cpu_transcoder_masked(__dev_priv, __t, __mask) \
 262         for ((__t) = 0; (__t) < I915_MAX_TRANSCODERS; (__t)++)  \
 263                 for_each_if ((__mask) & (1 << (__t)))
 264
 265 #define for_each_universal_plane(__dev_priv, __pipe, __p)               \
 266         for ((__p) = 0;                                                 \
 267              (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1; \
 268              (__p)++)
 269
 270 #define for_each_sprite(__dev_priv, __p, __s)                           \
 271         for ((__s) = 0;                                                 \
 272              (__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)];        \
 273              (__s)++)
 274
 275 #define for_each_port_masked(__port, __ports_mask) \
 276         for ((__port) = PORT_A; (__port) < I915_MAX_PORTS; (__port)++)  \
 277                 for_each_if((__ports_mask) & BIT(__port))
 278
 279 #define for_each_crtc(dev, crtc) \
 280         list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head)
 281
 282 #define for_each_intel_plane(dev, intel_plane) \
 283         list_for_each_entry(intel_plane,                        \
 284                             &(dev)->mode_config.plane_list,     \
 285                             base.head)
 286
 287 #define for_each_intel_plane_mask(dev, intel_plane, plane_mask)         \
 288         list_for_each_entry(intel_plane,                                \
 289                             &(dev)->mode_config.plane_list,             \
 290                             base.head)                                  \
 291                 for_each_if((plane_mask) &                              \
 292                             drm_plane_mask(&intel_plane->base)))
 293
 294 #define for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane)      \
 295         list_for_each_entry(intel_plane,                                \
 296                             &(dev)->mode_config.plane_list,             \
 297                             base.head)                                  \
 298                 for_each_if((intel_plane)->pipe == (intel_crtc)->pipe)
 299
 300 #define for_each_intel_crtc(dev, intel_crtc)                            \
 301         list_for_each_entry(intel_crtc,                                 \
 302                             &(dev)->mode_config.crtc_list,              \
 303                             base.head)
 304
 305 #define for_each_intel_crtc_mask(dev, intel_crtc, crtc_mask)            \
 306         list_for_each_entry(intel_crtc,                                 \
 307                             &(dev)->mode_config.crtc_list,              \
 308                             base.head)                                  \
 309                 for_each_if((crtc_mask) & drm_crtc_mask(&intel_crtc->base))
 310
 311 #define for_each_intel_encoder(dev, intel_encoder)              \
 312         list_for_each_entry(intel_encoder,                      \
 313                             &(dev)->mode_config.encoder_list,   \
 314                             base.head)
 315
 316 #define for_each_intel_dp(dev, intel_encoder)                   \
 317         for_each_intel_encoder(dev, intel_encoder)              \
 318                 for_each_if(intel_encoder_is_dp(intel_encoder))
 319
 320 #define for_each_intel_connector_iter(intel_connector, iter) \
 321         while ((intel_connector = to_intel_connector(drm_connector_list_iter_next(iter))))
 322
 323 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
 324         list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
 325                 for_each_if((intel_encoder)->base.crtc == (__crtc))
 326
 327 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
 328         list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
 329                 for_each_if((intel_connector)->base.encoder == (__encoder))
 330
 331 #define for_each_power_domain(domain, mask)                             \
 332         for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++)     \
 333                 for_each_if(BIT_ULL(domain) & (mask))
 334
 335 #define for_each_power_well(__dev_priv, __power_well)                           \
 336         for ((__power_well) = (__dev_priv)->power_domains.power_wells;  \
 337              (__power_well) - (__dev_priv)->power_domains.power_wells < \
 338                 (__dev_priv)->power_domains.power_well_count;           \
 339              (__power_well)++)
 340
 341 #define for_each_power_well_rev(__dev_priv, __power_well)                       \
 342         for ((__power_well) = (__dev_priv)->power_domains.power_wells +         \
 343                               (__dev_priv)->power_domains.power_well_count - 1; \
 344              (__power_well) - (__dev_priv)->power_domains.power_wells >= 0;     \
 345              (__power_well)--)
 346
 347 #define for_each_power_domain_well(__dev_priv, __power_well, __domain_mask)     \
 348         for_each_power_well(__dev_priv, __power_well)                           \
 349                 for_each_if((__power_well)->domains & (__domain_mask))
 350
 351 #define for_each_power_domain_well_rev(__dev_priv, __power_well, __domain_mask) \
 352         for_each_power_well_rev(__dev_priv, __power_well)                       \
 353                 for_each_if((__power_well)->domains & (__domain_mask))
 354
 355 #define for_each_new_intel_plane_in_state(__state, plane, new_plane_state, __i) \
 356         for ((__i) = 0; \
 357              (__i) < (__state)->base.dev->mode_config.num_total_plane && \
 358                      ((plane) = to_intel_plane((__state)->base.planes[__i].ptr), \
 359                       (new_plane_state) = to_intel_plane_state((__state)->base.planes[__i].new_state), 1); \
 360              (__i)++) \
 361                 for_each_if(plane)
 362
 363 #define for_each_new_intel_crtc_in_state(__state, crtc, new_crtc_state, __i) \
 364         for ((__i) = 0; \
 365              (__i) < (__state)->base.dev->mode_config.num_crtc && \
 366                      ((crtc) = to_intel_crtc((__state)->base.crtcs[__i].ptr), \
 367                       (new_crtc_state) = to_intel_crtc_state((__state)->base.crtcs[__i].new_state), 1); \
 368              (__i)++) \
 369                 for_each_if(crtc)
 370
 371 #define for_each_oldnew_intel_plane_in_state(__state, plane, old_plane_state, new_plane_state, __i) \
 372         for ((__i) = 0; \
 373              (__i) < (__state)->base.dev->mode_config.num_total_plane && \
 374                      ((plane) = to_intel_plane((__state)->base.planes[__i].ptr), \
 375                       (old_plane_state) = to_intel_plane_state((__state)->base.planes[__i].old_state), \
 376                       (new_plane_state) = to_intel_plane_state((__state)->base.planes[__i].new_state), 1); \
 377              (__i)++) \
 378                 for_each_if(plane)
 379
 380 void intel_link_compute_m_n(int bpp, int nlanes,
 381                             int pixel_clock, int link_clock,
 382                             struct intel_link_m_n *m_n,
 383                             bool reduce_m_n);
 384
 385 #endif