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 enum dpio_channel {
 130         DPIO_CH0,
 131         DPIO_CH1
 132 };
 133
 134 enum dpio_phy {
 135         DPIO_PHY0,
 136         DPIO_PHY1,
 137         DPIO_PHY2,
 138 };
 139
 140 #define I915_NUM_PHYS_VLV 2
 141
 142 enum aux_ch {
 143         AUX_CH_A,
 144         AUX_CH_B,
 145         AUX_CH_C,
 146         AUX_CH_D,
 147         _AUX_CH_E, /* does not exist */
 148         AUX_CH_F,
 149 };
 150
 151 #define aux_ch_name(a) ((a) + 'A')
 152
 153 enum intel_display_power_domain {
 154         POWER_DOMAIN_PIPE_A,
 155         POWER_DOMAIN_PIPE_B,
 156         POWER_DOMAIN_PIPE_C,
 157         POWER_DOMAIN_PIPE_A_PANEL_FITTER,
 158         POWER_DOMAIN_PIPE_B_PANEL_FITTER,
 159         POWER_DOMAIN_PIPE_C_PANEL_FITTER,
 160         POWER_DOMAIN_TRANSCODER_A,
 161         POWER_DOMAIN_TRANSCODER_B,
 162         POWER_DOMAIN_TRANSCODER_C,
 163         POWER_DOMAIN_TRANSCODER_EDP,
 164         POWER_DOMAIN_TRANSCODER_DSI_A,
 165         POWER_DOMAIN_TRANSCODER_DSI_C,
 166         POWER_DOMAIN_PORT_DDI_A_LANES,
 167         POWER_DOMAIN_PORT_DDI_B_LANES,
 168         POWER_DOMAIN_PORT_DDI_C_LANES,
 169         POWER_DOMAIN_PORT_DDI_D_LANES,
 170         POWER_DOMAIN_PORT_DDI_E_LANES,
 171         POWER_DOMAIN_PORT_DDI_F_LANES,
 172         POWER_DOMAIN_PORT_DDI_A_IO,
 173         POWER_DOMAIN_PORT_DDI_B_IO,
 174         POWER_DOMAIN_PORT_DDI_C_IO,
 175         POWER_DOMAIN_PORT_DDI_D_IO,
 176         POWER_DOMAIN_PORT_DDI_E_IO,
 177         POWER_DOMAIN_PORT_DDI_F_IO,
 178         POWER_DOMAIN_PORT_DSI,
 179         POWER_DOMAIN_PORT_CRT,
 180         POWER_DOMAIN_PORT_OTHER,
 181         POWER_DOMAIN_VGA,
 182         POWER_DOMAIN_AUDIO,
 183         POWER_DOMAIN_PLLS,
 184         POWER_DOMAIN_AUX_A,
 185         POWER_DOMAIN_AUX_B,
 186         POWER_DOMAIN_AUX_C,
 187         POWER_DOMAIN_AUX_D,
 188         POWER_DOMAIN_AUX_F,
 189         POWER_DOMAIN_AUX_IO_A,
 190         POWER_DOMAIN_GMBUS,
 191         POWER_DOMAIN_MODESET,
 192         POWER_DOMAIN_GT_IRQ,
 193         POWER_DOMAIN_INIT,
 194
 195         POWER_DOMAIN_NUM,
 196 };
 197
 198 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
 199 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
 200                 ((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
 201 #define POWER_DOMAIN_TRANSCODER(tran) \
 202         ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
 203          (tran) + POWER_DOMAIN_TRANSCODER_A)
 204
 205 /* Used by dp and fdi links */
 206 struct intel_link_m_n {
 207         u32 tu;
 208         u32 gmch_m;
 209         u32 gmch_n;
 210         u32 link_m;
 211         u32 link_n;
 212 };
 213
 214 #define for_each_pipe(__dev_priv, __p) \
 215         for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
 216
 217 #define for_each_pipe_masked(__dev_priv, __p, __mask) \
 218         for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++) \
 219                 for_each_if((__mask) & BIT(__p))
 220
 221 #define for_each_cpu_transcoder_masked(__dev_priv, __t, __mask) \
 222         for ((__t) = 0; (__t) < I915_MAX_TRANSCODERS; (__t)++)  \
 223                 for_each_if ((__mask) & (1 << (__t)))
 224
 225 #define for_each_universal_plane(__dev_priv, __pipe, __p)               \
 226         for ((__p) = 0;                                                 \
 227              (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1; \
 228              (__p)++)
 229
 230 #define for_each_sprite(__dev_priv, __p, __s)                           \
 231         for ((__s) = 0;                                                 \
 232              (__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)];        \
 233              (__s)++)
 234
 235 #define for_each_port_masked(__port, __ports_mask) \
 236         for ((__port) = PORT_A; (__port) < I915_MAX_PORTS; (__port)++)  \
 237                 for_each_if((__ports_mask) & BIT(__port))
 238
 239 #define for_each_crtc(dev, crtc) \
 240         list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head)
 241
 242 #define for_each_intel_plane(dev, intel_plane) \
 243         list_for_each_entry(intel_plane,                        \
 244                             &(dev)->mode_config.plane_list,     \
 245                             base.head)
 246
 247 #define for_each_intel_plane_mask(dev, intel_plane, plane_mask)         \
 248         list_for_each_entry(intel_plane,                                \
 249                             &(dev)->mode_config.plane_list,             \
 250                             base.head)                                  \
 251                 for_each_if((plane_mask) &                              \
 252                             BIT(drm_plane_index(&intel_plane->base)))
 253
 254 #define for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane)      \
 255         list_for_each_entry(intel_plane,                                \
 256                             &(dev)->mode_config.plane_list,             \
 257                             base.head)                                  \
 258                 for_each_if((intel_plane)->pipe == (intel_crtc)->pipe)
 259
 260 #define for_each_intel_crtc(dev, intel_crtc)                            \
 261         list_for_each_entry(intel_crtc,                                 \
 262                             &(dev)->mode_config.crtc_list,              \
 263                             base.head)
 264
 265 #define for_each_intel_crtc_mask(dev, intel_crtc, crtc_mask)            \
 266         list_for_each_entry(intel_crtc,                                 \
 267                             &(dev)->mode_config.crtc_list,              \
 268                             base.head)                                  \
 269                 for_each_if((crtc_mask) & BIT(drm_crtc_index(&intel_crtc->base)))
 270
 271 #define for_each_intel_encoder(dev, intel_encoder)              \
 272         list_for_each_entry(intel_encoder,                      \
 273                             &(dev)->mode_config.encoder_list,   \
 274                             base.head)
 275
 276 #define for_each_intel_connector_iter(intel_connector, iter) \
 277         while ((intel_connector = to_intel_connector(drm_connector_list_iter_next(iter))))
 278
 279 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
 280         list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
 281                 for_each_if((intel_encoder)->base.crtc == (__crtc))
 282
 283 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
 284         list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
 285                 for_each_if((intel_connector)->base.encoder == (__encoder))
 286
 287 #define for_each_power_domain(domain, mask)                             \
 288         for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++)     \
 289                 for_each_if(BIT_ULL(domain) & (mask))
 290
 291 #define for_each_power_well(__dev_priv, __power_well)                           \
 292         for ((__power_well) = (__dev_priv)->power_domains.power_wells;  \
 293              (__power_well) - (__dev_priv)->power_domains.power_wells < \
 294                 (__dev_priv)->power_domains.power_well_count;           \
 295              (__power_well)++)
 296
 297 #define for_each_power_well_rev(__dev_priv, __power_well)                       \
 298         for ((__power_well) = (__dev_priv)->power_domains.power_wells +         \
 299                               (__dev_priv)->power_domains.power_well_count - 1; \
 300              (__power_well) - (__dev_priv)->power_domains.power_wells >= 0;     \
 301              (__power_well)--)
 302
 303 #define for_each_power_domain_well(__dev_priv, __power_well, __domain_mask)     \
 304         for_each_power_well(__dev_priv, __power_well)                           \
 305                 for_each_if((__power_well)->domains & (__domain_mask))
 306
 307 #define for_each_power_domain_well_rev(__dev_priv, __power_well, __domain_mask) \
 308         for_each_power_well_rev(__dev_priv, __power_well)                       \
 309                 for_each_if((__power_well)->domains & (__domain_mask))
 310
 311 #define for_each_new_intel_plane_in_state(__state, plane, new_plane_state, __i) \
 312         for ((__i) = 0; \
 313              (__i) < (__state)->base.dev->mode_config.num_total_plane && \
 314                      ((plane) = to_intel_plane((__state)->base.planes[__i].ptr), \
 315                       (new_plane_state) = to_intel_plane_state((__state)->base.planes[__i].new_state), 1); \
 316              (__i)++) \
 317                 for_each_if(plane)
 318
 319 #define for_each_new_intel_crtc_in_state(__state, crtc, new_crtc_state, __i) \
 320         for ((__i) = 0; \
 321              (__i) < (__state)->base.dev->mode_config.num_crtc && \
 322                      ((crtc) = to_intel_crtc((__state)->base.crtcs[__i].ptr), \
 323                       (new_crtc_state) = to_intel_crtc_state((__state)->base.crtcs[__i].new_state), 1); \
 324              (__i)++) \
 325                 for_each_if(crtc)
 326
 327 #define for_each_oldnew_intel_plane_in_state(__state, plane, old_plane_state, new_plane_state, __i) \
 328         for ((__i) = 0; \
 329              (__i) < (__state)->base.dev->mode_config.num_total_plane && \
 330                      ((plane) = to_intel_plane((__state)->base.planes[__i].ptr), \
 331                       (old_plane_state) = to_intel_plane_state((__state)->base.planes[__i].old_state), \
 332                       (new_plane_state) = to_intel_plane_state((__state)->base.planes[__i].new_state), 1); \
 333              (__i)++) \
 334                 for_each_if(plane)
 335
 336 void intel_link_compute_m_n(int bpp, int nlanes,
 337                             int pixel_clock, int link_clock,
 338                             struct intel_link_m_n *m_n,
 339                             bool reduce_m_n);
 340
 341 #endif