drivers/gpu/drm/meson/meson_overlay.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2018 BayLibre, SAS
   4  * Author: Neil Armstrong <narmstrong@baylibre.com>
   5  * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
   6  */
   7
   8 #include <linux/bitfield.h>
   9
  10 #include <drm/drm_atomic.h>
  11 #include <drm/drm_atomic_helper.h>
  12 #include <drm/drm_device.h>
  13 #include <drm/drm_fourcc.h>
  14 #include <drm/drm_plane_helper.h>
  15 #include <drm/drm_gem_cma_helper.h>
  16 #include <drm/drm_fb_cma_helper.h>
  17 #include <drm/drm_gem_framebuffer_helper.h>
  18
  19 #include "meson_overlay.h"
  20 #include "meson_registers.h"
  21 #include "meson_viu.h"
  22 #include "meson_vpp.h"
  23
  24 /* VD1_IF0_GEN_REG */
  25 #define VD_URGENT_CHROMA                BIT(28)
  26 #define VD_URGENT_LUMA                  BIT(27)
  27 #define VD_HOLD_LINES(lines)            FIELD_PREP(GENMASK(24, 19), lines)
  28 #define VD_DEMUX_MODE_RGB               BIT(16)
  29 #define VD_BYTES_PER_PIXEL(val)         FIELD_PREP(GENMASK(15, 14), val)
  30 #define VD_CHRO_RPT_LASTL_CTRL          BIT(6)
  31 #define VD_LITTLE_ENDIAN                BIT(4)
  32 #define VD_SEPARATE_EN                  BIT(1)
  33 #define VD_ENABLE                       BIT(0)
  34
  35 /* VD1_IF0_CANVAS0 */
  36 #define CANVAS_ADDR2(addr)              FIELD_PREP(GENMASK(23, 16), addr)
  37 #define CANVAS_ADDR1(addr)              FIELD_PREP(GENMASK(15, 8), addr)
  38 #define CANVAS_ADDR0(addr)              FIELD_PREP(GENMASK(7, 0), addr)
  39
  40 /* VD1_IF0_LUMA_X0 VD1_IF0_CHROMA_X0 */
  41 #define VD_X_START(value)               FIELD_PREP(GENMASK(14, 0), value)
  42 #define VD_X_END(value)                 FIELD_PREP(GENMASK(30, 16), value)
  43
  44 /* VD1_IF0_LUMA_Y0 VD1_IF0_CHROMA_Y0 */
  45 #define VD_Y_START(value)               FIELD_PREP(GENMASK(12, 0), value)
  46 #define VD_Y_END(value)                 FIELD_PREP(GENMASK(28, 16), value)
  47
  48 /* VD1_IF0_GEN_REG2 */
  49 #define VD_COLOR_MAP(value)             FIELD_PREP(GENMASK(1, 0), value)
  50
  51 /* VIU_VD1_FMT_CTRL */
  52 #define VD_HORZ_Y_C_RATIO(value)        FIELD_PREP(GENMASK(22, 21), value)
  53 #define VD_HORZ_FMT_EN                  BIT(20)
  54 #define VD_VERT_RPT_LINE0               BIT(16)
  55 #define VD_VERT_INITIAL_PHASE(value)    FIELD_PREP(GENMASK(11, 8), value)
  56 #define VD_VERT_PHASE_STEP(value)       FIELD_PREP(GENMASK(7, 1), value)
  57 #define VD_VERT_FMT_EN                  BIT(0)
  58
  59 /* VPP_POSTBLEND_VD1_H_START_END */
  60 #define VD_H_END(value)                 FIELD_PREP(GENMASK(11, 0), value)
  61 #define VD_H_START(value)               FIELD_PREP(GENMASK(27, 16), value)
  62
  63 /* VPP_POSTBLEND_VD1_V_START_END */
  64 #define VD_V_END(value)                 FIELD_PREP(GENMASK(11, 0), value)
  65 #define VD_V_START(value)               FIELD_PREP(GENMASK(27, 16), value)
  66
  67 /* VPP_BLEND_VD2_V_START_END */
  68 #define VD2_V_END(value)                FIELD_PREP(GENMASK(11, 0), value)
  69 #define VD2_V_START(value)              FIELD_PREP(GENMASK(27, 16), value)
  70
  71 /* VIU_VD1_FMT_W */
  72 #define VD_V_WIDTH(value)               FIELD_PREP(GENMASK(11, 0), value)
  73 #define VD_H_WIDTH(value)               FIELD_PREP(GENMASK(27, 16), value)
  74
  75 /* VPP_HSC_REGION12_STARTP VPP_HSC_REGION34_STARTP */
  76 #define VD_REGION24_START(value)        FIELD_PREP(GENMASK(11, 0), value)
  77 #define VD_REGION13_END(value)          FIELD_PREP(GENMASK(27, 16), value)
  78
  79 struct meson_overlay {
  80         struct drm_plane base;
  81         struct meson_drm *priv;
  82 };
  83 #define to_meson_overlay(x) container_of(x, struct meson_overlay, base)
  84
  85 #define FRAC_16_16(mult, div)    (((mult) << 16) / (div))
  86
  87 static int meson_overlay_atomic_check(struct drm_plane *plane,
  88                                       struct drm_plane_state *state)
  89 {
  90         struct drm_crtc_state *crtc_state;
  91
  92         if (!state->crtc)
  93                 return 0;
  94
  95         crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
  96         if (IS_ERR(crtc_state))
  97                 return PTR_ERR(crtc_state);
  98
  99         return drm_atomic_helper_check_plane_state(state, crtc_state,
 100                                                    FRAC_16_16(1, 5),
 101                                                    FRAC_16_16(5, 1),
 102                                                    true, true);
 103 }
 104
 105 /* Takes a fixed 16.16 number and converts it to integer. */
 106 static inline int64_t fixed16_to_int(int64_t value)
 107 {
 108         return value >> 16;
 109 }
 110
 111 static const uint8_t skip_tab[6] = {
 112         0x24, 0x04, 0x68, 0x48, 0x28, 0x08,
 113 };
 114
 115 static void meson_overlay_get_vertical_phase(unsigned int ratio_y, int *phase,
 116                                              int *repeat, bool interlace)
 117 {
 118         int offset_in = 0;
 119         int offset_out = 0;
 120         int repeat_skip = 0;
 121
 122         if (!interlace && ratio_y > (1 << 18))
 123                 offset_out = (1 * ratio_y) >> 10;
 124
 125         while ((offset_in + (4 << 8)) <= offset_out) {
 126                 repeat_skip++;
 127                 offset_in += 4 << 8;
 128         }
 129
 130         *phase = (offset_out - offset_in) >> 2;
 131
 132         if (*phase > 0x100)
 133                 repeat_skip++;
 134
 135         *phase = *phase & 0xff;
 136
 137         if (repeat_skip > 5)
 138                 repeat_skip = 5;
 139
 140         *repeat = skip_tab[repeat_skip];
 141 }
 142
 143 static void meson_overlay_setup_scaler_params(struct meson_drm *priv,
 144                                               struct drm_plane *plane,
 145                                               bool interlace_mode)
 146 {
 147         struct drm_crtc_state *crtc_state = priv->crtc->state;
 148         int video_top, video_left, video_width, video_height;
 149         struct drm_plane_state *state = plane->state;
 150         unsigned int vd_start_lines, vd_end_lines;
 151         unsigned int hd_start_lines, hd_end_lines;
 152         unsigned int crtc_height, crtc_width;
 153         unsigned int vsc_startp, vsc_endp;
 154         unsigned int hsc_startp, hsc_endp;
 155         unsigned int crop_top, crop_left;
 156         int vphase, vphase_repeat_skip;
 157         unsigned int ratio_x, ratio_y;
 158         int temp_height, temp_width;
 159         unsigned int w_in, h_in;
 160         int temp, start, end;
 161
 162         if (!crtc_state) {
 163                 DRM_ERROR("Invalid crtc_state\n");
 164                 return;
 165         }
 166
 167         crtc_height = crtc_state->mode.vdisplay;
 168         crtc_width = crtc_state->mode.hdisplay;
 169
 170         w_in = fixed16_to_int(state->src_w);
 171         h_in = fixed16_to_int(state->src_h);
 172         crop_top = fixed16_to_int(state->src_x);
 173         crop_left = fixed16_to_int(state->src_x);
 174
 175         video_top = state->crtc_y;
 176         video_left = state->crtc_x;
 177         video_width = state->crtc_w;
 178         video_height = state->crtc_h;
 179
 180         DRM_DEBUG("crtc_width %d crtc_height %d interlace %d\n",
 181                   crtc_width, crtc_height, interlace_mode);
 182         DRM_DEBUG("w_in %d h_in %d crop_top %d crop_left %d\n",
 183                   w_in, h_in, crop_top, crop_left);
 184         DRM_DEBUG("video top %d left %d width %d height %d\n",
 185                   video_top, video_left, video_width, video_height);
 186
 187         ratio_x = (w_in << 18) / video_width;
 188         ratio_y = (h_in << 18) / video_height;
 189
 190         if (ratio_x * video_width < (w_in << 18))
 191                 ratio_x++;
 192
 193         DRM_DEBUG("ratio x 0x%x y 0x%x\n", ratio_x, ratio_y);
 194
 195         meson_overlay_get_vertical_phase(ratio_y, &vphase, &vphase_repeat_skip,
 196                                          interlace_mode);
 197
 198         DRM_DEBUG("vphase 0x%x skip %d\n", vphase, vphase_repeat_skip);
 199
 200         /* Vertical */
 201
 202         start = video_top + video_height / 2 - ((h_in << 17) / ratio_y);
 203         end = (h_in << 18) / ratio_y + start - 1;
 204
 205         if (video_top < 0 && start < 0)
 206                 vd_start_lines = (-(start) * ratio_y) >> 18;
 207         else if (start < video_top)
 208                 vd_start_lines = ((video_top - start) * ratio_y) >> 18;
 209         else
 210                 vd_start_lines = 0;
 211
 212         if (video_top < 0)
 213                 temp_height = min_t(unsigned int,
 214                                     video_top + video_height - 1,
 215                                     crtc_height - 1);
 216         else
 217                 temp_height = min_t(unsigned int,
 218                                     video_top + video_height - 1,
 219                                     crtc_height - 1) - video_top + 1;
 220
 221         temp = vd_start_lines + (temp_height * ratio_y >> 18);
 222         vd_end_lines = (temp <= (h_in - 1)) ? temp : (h_in - 1);
 223
 224         vd_start_lines += crop_left;
 225         vd_end_lines += crop_left;
 226
 227         /*
 228          * TOFIX: Input frames are handled and scaled like progressive frames,
 229          * proper handling of interlaced field input frames need to be figured
 230          * out using the proper framebuffer flags set by userspace.
 231          */
 232         if (interlace_mode) {
 233                 start >>= 1;
 234                 end >>= 1;
 235         }
 236
 237         vsc_startp = max_t(int, start,
 238                            max_t(int, 0, video_top));
 239         vsc_endp = min_t(int, end,
 240                          min_t(int, crtc_height - 1,
 241                                video_top + video_height - 1));
 242
 243         DRM_DEBUG("vsc startp %d endp %d start_lines %d end_lines %d\n",
 244                  vsc_startp, vsc_endp, vd_start_lines, vd_end_lines);
 245
 246         /* Horizontal */
 247
 248         start = video_left + video_width / 2 - ((w_in << 17) / ratio_x);
 249         end = (w_in << 18) / ratio_x + start - 1;
 250
 251         if (video_left < 0 && start < 0)
 252                 hd_start_lines = (-(start) * ratio_x) >> 18;
 253         else if (start < video_left)
 254                 hd_start_lines = ((video_left - start) * ratio_x) >> 18;
 255         else
 256                 hd_start_lines = 0;
 257
 258         if (video_left < 0)
 259                 temp_width = min_t(unsigned int,
 260                                    video_left + video_width - 1,
 261                                    crtc_width - 1);
 262         else
 263                 temp_width = min_t(unsigned int,
 264                                    video_left + video_width - 1,
 265                                    crtc_width - 1) - video_left + 1;
 266
 267         temp = hd_start_lines + (temp_width * ratio_x >> 18);
 268         hd_end_lines = (temp <= (w_in - 1)) ? temp : (w_in - 1);
 269
 270         priv->viu.vpp_line_in_length = hd_end_lines - hd_start_lines + 1;
 271         hsc_startp = max_t(int, start, max_t(int, 0, video_left));
 272         hsc_endp = min_t(int, end, min_t(int, crtc_width - 1,
 273                                          video_left + video_width - 1));
 274
 275         hd_start_lines += crop_top;
 276         hd_end_lines += crop_top;
 277
 278         DRM_DEBUG("hsc startp %d endp %d start_lines %d end_lines %d\n",
 279                  hsc_startp, hsc_endp, hd_start_lines, hd_end_lines);
 280
 281         priv->viu.vpp_vsc_start_phase_step = ratio_y << 6;
 282
 283         priv->viu.vpp_vsc_ini_phase = vphase << 8;
 284         priv->viu.vpp_vsc_phase_ctrl = (1 << 13) | (4 << 8) |
 285                                        vphase_repeat_skip;
 286
 287         priv->viu.vd1_if0_luma_x0 = VD_X_START(hd_start_lines) |
 288                                     VD_X_END(hd_end_lines);
 289         priv->viu.vd1_if0_chroma_x0 = VD_X_START(hd_start_lines >> 1) |
 290                                       VD_X_END(hd_end_lines >> 1);
 291
 292         priv->viu.viu_vd1_fmt_w =
 293                         VD_H_WIDTH(hd_end_lines - hd_start_lines + 1) |
 294                         VD_V_WIDTH(hd_end_lines/2 - hd_start_lines/2 + 1);
 295
 296         priv->viu.vd1_if0_luma_y0 = VD_Y_START(vd_start_lines) |
 297                                     VD_Y_END(vd_end_lines);
 298
 299         priv->viu.vd1_if0_chroma_y0 = VD_Y_START(vd_start_lines >> 1) |
 300                                       VD_Y_END(vd_end_lines >> 1);
 301
 302         priv->viu.vpp_pic_in_height = h_in;
 303
 304         priv->viu.vpp_postblend_vd1_h_start_end = VD_H_START(hsc_startp) |
 305                                                   VD_H_END(hsc_endp);
 306         priv->viu.vpp_blend_vd2_h_start_end = VD_H_START(hd_start_lines) |
 307                                               VD_H_END(hd_end_lines);
 308         priv->viu.vpp_hsc_region12_startp = VD_REGION13_END(0) |
 309                                             VD_REGION24_START(hsc_startp);
 310         priv->viu.vpp_hsc_region34_startp =
 311                                 VD_REGION13_END(hsc_startp) |
 312                                 VD_REGION24_START(hsc_endp - hsc_startp);
 313         priv->viu.vpp_hsc_region4_endp = hsc_endp - hsc_startp;
 314         priv->viu.vpp_hsc_start_phase_step = ratio_x << 6;
 315         priv->viu.vpp_hsc_region1_phase_slope = 0;
 316         priv->viu.vpp_hsc_region3_phase_slope = 0;
 317         priv->viu.vpp_hsc_phase_ctrl = (1 << 21) | (4 << 16);
 318
 319         priv->viu.vpp_line_in_length = hd_end_lines - hd_start_lines + 1;
 320         priv->viu.vpp_preblend_h_size = hd_end_lines - hd_start_lines + 1;
 321
 322         priv->viu.vpp_postblend_vd1_v_start_end = VD_V_START(vsc_startp) |
 323                                                   VD_V_END(vsc_endp);
 324         priv->viu.vpp_blend_vd2_v_start_end =
 325                                 VD2_V_START((vd_end_lines + 1) >> 1) |
 326                                 VD2_V_END(vd_end_lines);
 327
 328         priv->viu.vpp_vsc_region12_startp = 0;
 329         priv->viu.vpp_vsc_region34_startp =
 330                                 VD_REGION13_END(vsc_endp - vsc_startp) |
 331                                 VD_REGION24_START(vsc_endp - vsc_startp);
 332         priv->viu.vpp_vsc_region4_endp = vsc_endp - vsc_startp;
 333         priv->viu.vpp_vsc_start_phase_step = ratio_y << 6;
 334 }
 335
 336 static void meson_overlay_atomic_update(struct drm_plane *plane,
 337                                         struct drm_plane_state *old_state)
 338 {
 339         struct meson_overlay *meson_overlay = to_meson_overlay(plane);
 340         struct drm_plane_state *state = plane->state;
 341         struct drm_framebuffer *fb = state->fb;
 342         struct meson_drm *priv = meson_overlay->priv;
 343         struct drm_gem_cma_object *gem;
 344         unsigned long flags;
 345         bool interlace_mode;
 346
 347         DRM_DEBUG_DRIVER("\n");
 348
 349         interlace_mode = state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE;
 350
 351         spin_lock_irqsave(&priv->drm->event_lock, flags);
 352
 353         priv->viu.vd1_if0_gen_reg = VD_URGENT_CHROMA |
 354                                     VD_URGENT_LUMA |
 355                                     VD_HOLD_LINES(9) |
 356                                     VD_CHRO_RPT_LASTL_CTRL |
 357                                     VD_ENABLE;
 358
 359         /* Setup scaler params */
 360         meson_overlay_setup_scaler_params(priv, plane, interlace_mode);
 361
 362         priv->viu.vd1_if0_repeat_loop = 0;
 363         priv->viu.vd1_if0_luma0_rpt_pat = interlace_mode ? 8 : 0;
 364         priv->viu.vd1_if0_chroma0_rpt_pat = interlace_mode ? 8 : 0;
 365         priv->viu.vd1_range_map_y = 0;
 366         priv->viu.vd1_range_map_cb = 0;
 367         priv->viu.vd1_range_map_cr = 0;
 368
 369         /* Default values for RGB888/YUV444 */
 370         priv->viu.vd1_if0_gen_reg2 = 0;
 371         priv->viu.viu_vd1_fmt_ctrl = 0;
 372
 373         switch (fb->format->format) {
 374         /* TOFIX DRM_FORMAT_RGB888 should be supported */
 375         case DRM_FORMAT_YUYV:
 376                 priv->viu.vd1_if0_gen_reg |= VD_BYTES_PER_PIXEL(1);
 377                 priv->viu.vd1_if0_canvas0 =
 378                                         CANVAS_ADDR2(priv->canvas_id_vd1_0) |
 379                                         CANVAS_ADDR1(priv->canvas_id_vd1_0) |
 380                                         CANVAS_ADDR0(priv->canvas_id_vd1_0);
 381                 priv->viu.viu_vd1_fmt_ctrl = VD_HORZ_Y_C_RATIO(1) | /* /2 */
 382                                              VD_HORZ_FMT_EN |
 383                                              VD_VERT_RPT_LINE0 |
 384                                              VD_VERT_INITIAL_PHASE(12) |
 385                                              VD_VERT_PHASE_STEP(16) | /* /2 */
 386                                              VD_VERT_FMT_EN;
 387                 break;
 388         case DRM_FORMAT_NV12:
 389         case DRM_FORMAT_NV21:
 390                 priv->viu.vd1_if0_gen_reg |= VD_SEPARATE_EN;
 391                 priv->viu.vd1_if0_canvas0 =
 392                                         CANVAS_ADDR2(priv->canvas_id_vd1_1) |
 393                                         CANVAS_ADDR1(priv->canvas_id_vd1_1) |
 394                                         CANVAS_ADDR0(priv->canvas_id_vd1_0);
 395                 if (fb->format->format == DRM_FORMAT_NV12)
 396                         priv->viu.vd1_if0_gen_reg2 = VD_COLOR_MAP(1);
 397                 else
 398                         priv->viu.vd1_if0_gen_reg2 = VD_COLOR_MAP(2);
 399                 priv->viu.viu_vd1_fmt_ctrl = VD_HORZ_Y_C_RATIO(1) | /* /2 */
 400                                              VD_HORZ_FMT_EN |
 401                                              VD_VERT_RPT_LINE0 |
 402                                              VD_VERT_INITIAL_PHASE(12) |
 403                                              VD_VERT_PHASE_STEP(8) | /* /4 */
 404                                              VD_VERT_FMT_EN;
 405                 break;
 406         case DRM_FORMAT_YUV444:
 407         case DRM_FORMAT_YUV422:
 408         case DRM_FORMAT_YUV420:
 409         case DRM_FORMAT_YUV411:
 410         case DRM_FORMAT_YUV410:
 411                 priv->viu.vd1_if0_gen_reg |= VD_SEPARATE_EN;
 412                 priv->viu.vd1_if0_canvas0 =
 413                                         CANVAS_ADDR2(priv->canvas_id_vd1_2) |
 414                                         CANVAS_ADDR1(priv->canvas_id_vd1_1) |
 415                                         CANVAS_ADDR0(priv->canvas_id_vd1_0);
 416                 switch (fb->format->format) {
 417                 case DRM_FORMAT_YUV422:
 418                         priv->viu.viu_vd1_fmt_ctrl =
 419                                         VD_HORZ_Y_C_RATIO(1) | /* /2 */
 420                                         VD_HORZ_FMT_EN |
 421                                         VD_VERT_RPT_LINE0 |
 422                                         VD_VERT_INITIAL_PHASE(12) |
 423                                         VD_VERT_PHASE_STEP(16) | /* /2 */
 424                                         VD_VERT_FMT_EN;
 425                         break;
 426                 case DRM_FORMAT_YUV420:
 427                         priv->viu.viu_vd1_fmt_ctrl =
 428                                         VD_HORZ_Y_C_RATIO(1) | /* /2 */
 429                                         VD_HORZ_FMT_EN |
 430                                         VD_VERT_RPT_LINE0 |
 431                                         VD_VERT_INITIAL_PHASE(12) |
 432                                         VD_VERT_PHASE_STEP(8) | /* /4 */
 433                                         VD_VERT_FMT_EN;
 434                         break;
 435                 case DRM_FORMAT_YUV411:
 436                         priv->viu.viu_vd1_fmt_ctrl =
 437                                         VD_HORZ_Y_C_RATIO(2) | /* /4 */
 438                                         VD_HORZ_FMT_EN |
 439                                         VD_VERT_RPT_LINE0 |
 440                                         VD_VERT_INITIAL_PHASE(12) |
 441                                         VD_VERT_PHASE_STEP(16) | /* /2 */
 442                                         VD_VERT_FMT_EN;
 443                         break;
 444                 case DRM_FORMAT_YUV410:
 445                         priv->viu.viu_vd1_fmt_ctrl =
 446                                         VD_HORZ_Y_C_RATIO(2) | /* /4 */
 447                                         VD_HORZ_FMT_EN |
 448                                         VD_VERT_RPT_LINE0 |
 449                                         VD_VERT_INITIAL_PHASE(12) |
 450                                         VD_VERT_PHASE_STEP(8) | /* /4 */
 451                                         VD_VERT_FMT_EN;
 452                         break;
 453                 }
 454                 break;
 455         }
 456
 457         /* Update Canvas with buffer address */
 458         priv->viu.vd1_planes = fb->format->num_planes;
 459
 460         switch (priv->viu.vd1_planes) {
 461         case 3:
 462                 gem = drm_fb_cma_get_gem_obj(fb, 2);
 463                 priv->viu.vd1_addr2 = gem->paddr + fb->offsets[2];
 464                 priv->viu.vd1_stride2 = fb->pitches[2];
 465                 priv->viu.vd1_height2 =
 466                         drm_format_info_plane_height(fb->format,
 467                                                 fb->height, 2);
 468                 DRM_DEBUG("plane 2 addr 0x%x stride %d height %d\n",
 469                          priv->viu.vd1_addr2,
 470                          priv->viu.vd1_stride2,
 471                          priv->viu.vd1_height2);
 472         /* fallthrough */
 473         case 2:
 474                 gem = drm_fb_cma_get_gem_obj(fb, 1);
 475                 priv->viu.vd1_addr1 = gem->paddr + fb->offsets[1];
 476                 priv->viu.vd1_stride1 = fb->pitches[1];
 477                 priv->viu.vd1_height1 =
 478                         drm_format_info_plane_height(fb->format,
 479                                                 fb->height, 1);
 480                 DRM_DEBUG("plane 1 addr 0x%x stride %d height %d\n",
 481                          priv->viu.vd1_addr1,
 482                          priv->viu.vd1_stride1,
 483                          priv->viu.vd1_height1);
 484         /* fallthrough */
 485         case 1:
 486                 gem = drm_fb_cma_get_gem_obj(fb, 0);
 487                 priv->viu.vd1_addr0 = gem->paddr + fb->offsets[0];
 488                 priv->viu.vd1_stride0 = fb->pitches[0];
 489                 priv->viu.vd1_height0 =
 490                         drm_format_info_plane_height(fb->format,
 491                                                 fb->height, 0);
 492                 DRM_DEBUG("plane 0 addr 0x%x stride %d height %d\n",
 493                          priv->viu.vd1_addr0,
 494                          priv->viu.vd1_stride0,
 495                          priv->viu.vd1_height0);
 496         }
 497
 498         priv->viu.vd1_enabled = true;
 499
 500         spin_unlock_irqrestore(&priv->drm->event_lock, flags);
 501
 502         DRM_DEBUG_DRIVER("\n");
 503 }
 504
 505 static void meson_overlay_atomic_disable(struct drm_plane *plane,
 506                                        struct drm_plane_state *old_state)
 507 {
 508         struct meson_overlay *meson_overlay = to_meson_overlay(plane);
 509         struct meson_drm *priv = meson_overlay->priv;
 510
 511         DRM_DEBUG_DRIVER("\n");
 512
 513         priv->viu.vd1_enabled = false;
 514
 515         /* Disable VD1 */
 516         if (meson_vpu_is_compatible(priv, "amlogic,meson-g12a-vpu")) {
 517                 writel_relaxed(0, priv->io_base + _REG(VD1_BLEND_SRC_CTRL));
 518                 writel_relaxed(0, priv->io_base + _REG(VD2_BLEND_SRC_CTRL));
 519                 writel_relaxed(0, priv->io_base + _REG(VD1_IF0_GEN_REG + 0x17b0));
 520                 writel_relaxed(0, priv->io_base + _REG(VD2_IF0_GEN_REG + 0x17b0));
 521         } else
 522                 writel_bits_relaxed(VPP_VD1_POSTBLEND | VPP_VD1_PREBLEND, 0,
 523                                     priv->io_base + _REG(VPP_MISC));
 524
 525 }
 526
 527 static const struct drm_plane_helper_funcs meson_overlay_helper_funcs = {
 528         .atomic_check   = meson_overlay_atomic_check,
 529         .atomic_disable = meson_overlay_atomic_disable,
 530         .atomic_update  = meson_overlay_atomic_update,
 531         .prepare_fb     = drm_gem_fb_prepare_fb,
 532 };
 533
 534 static const struct drm_plane_funcs meson_overlay_funcs = {
 535         .update_plane           = drm_atomic_helper_update_plane,
 536         .disable_plane          = drm_atomic_helper_disable_plane,
 537         .destroy                = drm_plane_cleanup,
 538         .reset                  = drm_atomic_helper_plane_reset,
 539         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 540         .atomic_destroy_state   = drm_atomic_helper_plane_destroy_state,
 541 };
 542
 543 static const uint32_t supported_drm_formats[] = {
 544         DRM_FORMAT_YUYV,
 545         DRM_FORMAT_NV12,
 546         DRM_FORMAT_NV21,
 547         DRM_FORMAT_YUV444,
 548         DRM_FORMAT_YUV422,
 549         DRM_FORMAT_YUV420,
 550         DRM_FORMAT_YUV411,
 551         DRM_FORMAT_YUV410,
 552 };
 553
 554 int meson_overlay_create(struct meson_drm *priv)
 555 {
 556         struct meson_overlay *meson_overlay;
 557         struct drm_plane *plane;
 558
 559         DRM_DEBUG_DRIVER("\n");
 560
 561         meson_overlay = devm_kzalloc(priv->drm->dev, sizeof(*meson_overlay),
 562                                    GFP_KERNEL);
 563         if (!meson_overlay)
 564                 return -ENOMEM;
 565
 566         meson_overlay->priv = priv;
 567         plane = &meson_overlay->base;
 568
 569         drm_universal_plane_init(priv->drm, plane, 0xFF,
 570                                  &meson_overlay_funcs,
 571                                  supported_drm_formats,
 572                                  ARRAY_SIZE(supported_drm_formats),
 573                                  NULL,
 574                                  DRM_PLANE_TYPE_OVERLAY, "meson_overlay_plane");
 575
 576         drm_plane_helper_add(plane, &meson_overlay_helper_funcs);
 577
 578         /* For now, VD Overlay plane is always on the back */
 579         drm_plane_create_zpos_immutable_property(plane, 0);
 580
 581         priv->overlay_plane = plane;
 582
 583         DRM_DEBUG_DRIVER("\n");
 584
 585         return 0;
 586 }