linux/drivers/gpu/drm/meson/meson_overlay.c
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   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), \
  62                                                   ((value) & GENMASK(13, 0)))
  63
  64/* VPP_POSTBLEND_VD1_V_START_END */
  65#define VD_V_END(value)                 FIELD_PREP(GENMASK(11, 0), value)
  66#define VD_V_START(value)               FIELD_PREP(GENMASK(27, 16), value)
  67
  68/* VPP_BLEND_VD2_V_START_END */
  69#define VD2_V_END(value)                FIELD_PREP(GENMASK(11, 0), value)
  70#define VD2_V_START(value)              FIELD_PREP(GENMASK(27, 16), value)
  71
  72/* VIU_VD1_FMT_W */
  73#define VD_V_WIDTH(value)               FIELD_PREP(GENMASK(11, 0), value)
  74#define VD_H_WIDTH(value)               FIELD_PREP(GENMASK(27, 16), value)
  75
  76/* VPP_HSC_REGION12_STARTP VPP_HSC_REGION34_STARTP */
  77#define VD_REGION24_START(value)        FIELD_PREP(GENMASK(11, 0), value)
  78#define VD_REGION13_END(value)          FIELD_PREP(GENMASK(27, 16), value)
  79
  80/* AFBC_ENABLE */
  81#define AFBC_DEC_ENABLE                 BIT(8)
  82#define AFBC_FRM_START                  BIT(0)
  83
  84/* AFBC_MODE */
  85#define AFBC_HORZ_SKIP_UV(value)        FIELD_PREP(GENMASK(1, 0), value)
  86#define AFBC_VERT_SKIP_UV(value)        FIELD_PREP(GENMASK(3, 2), value)
  87#define AFBC_HORZ_SKIP_Y(value)         FIELD_PREP(GENMASK(5, 4), value)
  88#define AFBC_VERT_SKIP_Y(value)         FIELD_PREP(GENMASK(7, 6), value)
  89#define AFBC_COMPBITS_YUV(value)        FIELD_PREP(GENMASK(13, 8), value)
  90#define AFBC_COMPBITS_8BIT              0
  91#define AFBC_COMPBITS_10BIT             (2 | (2 << 2) | (2 << 4))
  92#define AFBC_BURST_LEN(value)           FIELD_PREP(GENMASK(15, 14), value)
  93#define AFBC_HOLD_LINE_NUM(value)       FIELD_PREP(GENMASK(22, 16), value)
  94#define AFBC_MIF_URGENT(value)          FIELD_PREP(GENMASK(25, 24), value)
  95#define AFBC_REV_MODE(value)            FIELD_PREP(GENMASK(27, 26), value)
  96#define AFBC_BLK_MEM_MODE               BIT(28)
  97#define AFBC_SCATTER_MODE               BIT(29)
  98#define AFBC_SOFT_RESET                 BIT(31)
  99
 100/* AFBC_SIZE_IN */
 101#define AFBC_HSIZE_IN(value)            FIELD_PREP(GENMASK(28, 16), value)
 102#define AFBC_VSIZE_IN(value)            FIELD_PREP(GENMASK(12, 0), value)
 103
 104/* AFBC_DEC_DEF_COLOR */
 105#define AFBC_DEF_COLOR_Y(value)         FIELD_PREP(GENMASK(29, 20), value)
 106#define AFBC_DEF_COLOR_U(value)         FIELD_PREP(GENMASK(19, 10), value)
 107#define AFBC_DEF_COLOR_V(value)         FIELD_PREP(GENMASK(9, 0), value)
 108
 109/* AFBC_CONV_CTRL */
 110#define AFBC_CONV_LBUF_LEN(value)       FIELD_PREP(GENMASK(11, 0), value)
 111
 112/* AFBC_LBUF_DEPTH */
 113#define AFBC_DEC_LBUF_DEPTH(value)      FIELD_PREP(GENMASK(27, 16), value)
 114#define AFBC_MIF_LBUF_DEPTH(value)      FIELD_PREP(GENMASK(11, 0), value)
 115
 116/* AFBC_OUT_XSCOPE/AFBC_SIZE_OUT */
 117#define AFBC_HSIZE_OUT(value)           FIELD_PREP(GENMASK(28, 16), value)
 118#define AFBC_VSIZE_OUT(value)           FIELD_PREP(GENMASK(12, 0), value)
 119#define AFBC_OUT_HORZ_BGN(value)        FIELD_PREP(GENMASK(28, 16), value)
 120#define AFBC_OUT_HORZ_END(value)        FIELD_PREP(GENMASK(12, 0), value)
 121
 122/* AFBC_OUT_YSCOPE */
 123#define AFBC_OUT_VERT_BGN(value)        FIELD_PREP(GENMASK(28, 16), value)
 124#define AFBC_OUT_VERT_END(value)        FIELD_PREP(GENMASK(12, 0), value)
 125
 126/* AFBC_VD_CFMT_CTRL */
 127#define AFBC_HORZ_RPT_PIXEL0            BIT(23)
 128#define AFBC_HORZ_Y_C_RATIO(value)      FIELD_PREP(GENMASK(22, 21), value)
 129#define AFBC_HORZ_FMT_EN                BIT(20)
 130#define AFBC_VERT_RPT_LINE0             BIT(16)
 131#define AFBC_VERT_INITIAL_PHASE(value)  FIELD_PREP(GENMASK(11, 8), value)
 132#define AFBC_VERT_PHASE_STEP(value)     FIELD_PREP(GENMASK(7, 1), value)
 133#define AFBC_VERT_FMT_EN                BIT(0)
 134
 135/* AFBC_VD_CFMT_W */
 136#define AFBC_VD_V_WIDTH(value)          FIELD_PREP(GENMASK(11, 0), value)
 137#define AFBC_VD_H_WIDTH(value)          FIELD_PREP(GENMASK(27, 16), value)
 138
 139/* AFBC_MIF_HOR_SCOPE */
 140#define AFBC_MIF_BLK_BGN_H(value)       FIELD_PREP(GENMASK(25, 16), value)
 141#define AFBC_MIF_BLK_END_H(value)       FIELD_PREP(GENMASK(9, 0), value)
 142
 143/* AFBC_MIF_VER_SCOPE */
 144#define AFBC_MIF_BLK_BGN_V(value)       FIELD_PREP(GENMASK(27, 16), value)
 145#define AFBC_MIF_BLK_END_V(value)       FIELD_PREP(GENMASK(11, 0), value)
 146
 147/* AFBC_PIXEL_HOR_SCOPE */
 148#define AFBC_DEC_PIXEL_BGN_H(value)     FIELD_PREP(GENMASK(28, 16), \
 149                                                   ((value) & GENMASK(12, 0)))
 150#define AFBC_DEC_PIXEL_END_H(value)     FIELD_PREP(GENMASK(12, 0), value)
 151
 152/* AFBC_PIXEL_VER_SCOPE */
 153#define AFBC_DEC_PIXEL_BGN_V(value)     FIELD_PREP(GENMASK(28, 16), value)
 154#define AFBC_DEC_PIXEL_END_V(value)     FIELD_PREP(GENMASK(12, 0), value)
 155
 156/* AFBC_VD_CFMT_H */
 157#define AFBC_VD_HEIGHT(value)           FIELD_PREP(GENMASK(12, 0), value)
 158
 159struct meson_overlay {
 160        struct drm_plane base;
 161        struct meson_drm *priv;
 162};
 163#define to_meson_overlay(x) container_of(x, struct meson_overlay, base)
 164
 165#define FRAC_16_16(mult, div)    (((mult) << 16) / (div))
 166
 167static int meson_overlay_atomic_check(struct drm_plane *plane,
 168                                      struct drm_plane_state *state)
 169{
 170        struct drm_crtc_state *crtc_state;
 171
 172        if (!state->crtc)
 173                return 0;
 174
 175        crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
 176        if (IS_ERR(crtc_state))
 177                return PTR_ERR(crtc_state);
 178
 179        return drm_atomic_helper_check_plane_state(state, crtc_state,
 180                                                   FRAC_16_16(1, 5),
 181                                                   FRAC_16_16(5, 1),
 182                                                   true, true);
 183}
 184
 185/* Takes a fixed 16.16 number and converts it to integer. */
 186static inline int64_t fixed16_to_int(int64_t value)
 187{
 188        return value >> 16;
 189}
 190
 191static const uint8_t skip_tab[6] = {
 192        0x24, 0x04, 0x68, 0x48, 0x28, 0x08,
 193};
 194
 195static void meson_overlay_get_vertical_phase(unsigned int ratio_y, int *phase,
 196                                             int *repeat, bool interlace)
 197{
 198        int offset_in = 0;
 199        int offset_out = 0;
 200        int repeat_skip = 0;
 201
 202        if (!interlace && ratio_y > (1 << 18))
 203                offset_out = (1 * ratio_y) >> 10;
 204
 205        while ((offset_in + (4 << 8)) <= offset_out) {
 206                repeat_skip++;
 207                offset_in += 4 << 8;
 208        }
 209
 210        *phase = (offset_out - offset_in) >> 2;
 211
 212        if (*phase > 0x100)
 213                repeat_skip++;
 214
 215        *phase = *phase & 0xff;
 216
 217        if (repeat_skip > 5)
 218                repeat_skip = 5;
 219
 220        *repeat = skip_tab[repeat_skip];
 221}
 222
 223static void meson_overlay_setup_scaler_params(struct meson_drm *priv,
 224                                              struct drm_plane *plane,
 225                                              bool interlace_mode)
 226{
 227        struct drm_crtc_state *crtc_state = priv->crtc->state;
 228        int video_top, video_left, video_width, video_height;
 229        struct drm_plane_state *state = plane->state;
 230        unsigned int vd_start_lines, vd_end_lines;
 231        unsigned int hd_start_lines, hd_end_lines;
 232        unsigned int crtc_height, crtc_width;
 233        unsigned int vsc_startp, vsc_endp;
 234        unsigned int hsc_startp, hsc_endp;
 235        unsigned int crop_top, crop_left;
 236        int vphase, vphase_repeat_skip;
 237        unsigned int ratio_x, ratio_y;
 238        int temp_height, temp_width;
 239        unsigned int w_in, h_in;
 240        int afbc_left, afbc_right;
 241        int afbc_top_src, afbc_bottom_src;
 242        int afbc_top, afbc_bottom;
 243        int temp, start, end;
 244
 245        if (!crtc_state) {
 246                DRM_ERROR("Invalid crtc_state\n");
 247                return;
 248        }
 249
 250        crtc_height = crtc_state->mode.vdisplay;
 251        crtc_width = crtc_state->mode.hdisplay;
 252
 253        w_in = fixed16_to_int(state->src_w);
 254        h_in = fixed16_to_int(state->src_h);
 255        crop_top = fixed16_to_int(state->src_y);
 256        crop_left = fixed16_to_int(state->src_x);
 257
 258        video_top = state->crtc_y;
 259        video_left = state->crtc_x;
 260        video_width = state->crtc_w;
 261        video_height = state->crtc_h;
 262
 263        DRM_DEBUG("crtc_width %d crtc_height %d interlace %d\n",
 264                  crtc_width, crtc_height, interlace_mode);
 265        DRM_DEBUG("w_in %d h_in %d crop_top %d crop_left %d\n",
 266                  w_in, h_in, crop_top, crop_left);
 267        DRM_DEBUG("video top %d left %d width %d height %d\n",
 268                  video_top, video_left, video_width, video_height);
 269
 270        ratio_x = (w_in << 18) / video_width;
 271        ratio_y = (h_in << 18) / video_height;
 272
 273        if (ratio_x * video_width < (w_in << 18))
 274                ratio_x++;
 275
 276        DRM_DEBUG("ratio x 0x%x y 0x%x\n", ratio_x, ratio_y);
 277
 278        meson_overlay_get_vertical_phase(ratio_y, &vphase, &vphase_repeat_skip,
 279                                         interlace_mode);
 280
 281        DRM_DEBUG("vphase 0x%x skip %d\n", vphase, vphase_repeat_skip);
 282
 283        /* Vertical */
 284
 285        start = video_top + video_height / 2 - ((h_in << 17) / ratio_y);
 286        end = (h_in << 18) / ratio_y + start - 1;
 287
 288        if (video_top < 0 && start < 0)
 289                vd_start_lines = (-(start) * ratio_y) >> 18;
 290        else if (start < video_top)
 291                vd_start_lines = ((video_top - start) * ratio_y) >> 18;
 292        else
 293                vd_start_lines = 0;
 294
 295        if (video_top < 0)
 296                temp_height = min_t(unsigned int,
 297                                    video_top + video_height - 1,
 298                                    crtc_height - 1);
 299        else
 300                temp_height = min_t(unsigned int,
 301                                    video_top + video_height - 1,
 302                                    crtc_height - 1) - video_top + 1;
 303
 304        temp = vd_start_lines + (temp_height * ratio_y >> 18);
 305        vd_end_lines = (temp <= (h_in - 1)) ? temp : (h_in - 1);
 306
 307        vd_start_lines += crop_left;
 308        vd_end_lines += crop_left;
 309
 310        /*
 311         * TOFIX: Input frames are handled and scaled like progressive frames,
 312         * proper handling of interlaced field input frames need to be figured
 313         * out using the proper framebuffer flags set by userspace.
 314         */
 315        if (interlace_mode) {
 316                start >>= 1;
 317                end >>= 1;
 318        }
 319
 320        vsc_startp = max_t(int, start,
 321                           max_t(int, 0, video_top));
 322        vsc_endp = min_t(int, end,
 323                         min_t(int, crtc_height - 1,
 324                               video_top + video_height - 1));
 325
 326        DRM_DEBUG("vsc startp %d endp %d start_lines %d end_lines %d\n",
 327                 vsc_startp, vsc_endp, vd_start_lines, vd_end_lines);
 328
 329        afbc_top = round_down(vd_start_lines, 4);
 330        afbc_bottom = round_up(vd_end_lines + 1, 4);
 331        afbc_top_src = 0;
 332        afbc_bottom_src = round_up(h_in + 1, 4);
 333
 334        DRM_DEBUG("afbc top %d (src %d) bottom %d (src %d)\n",
 335                  afbc_top, afbc_top_src, afbc_bottom, afbc_bottom_src);
 336
 337        /* Horizontal */
 338
 339        start = video_left + video_width / 2 - ((w_in << 17) / ratio_x);
 340        end = (w_in << 18) / ratio_x + start - 1;
 341
 342        if (video_left < 0 && start < 0)
 343                hd_start_lines = (-(start) * ratio_x) >> 18;
 344        else if (start < video_left)
 345                hd_start_lines = ((video_left - start) * ratio_x) >> 18;
 346        else
 347                hd_start_lines = 0;
 348
 349        if (video_left < 0)
 350                temp_width = min_t(unsigned int,
 351                                   video_left + video_width - 1,
 352                                   crtc_width - 1);
 353        else
 354                temp_width = min_t(unsigned int,
 355                                   video_left + video_width - 1,
 356                                   crtc_width - 1) - video_left + 1;
 357
 358        temp = hd_start_lines + (temp_width * ratio_x >> 18);
 359        hd_end_lines = (temp <= (w_in - 1)) ? temp : (w_in - 1);
 360
 361        priv->viu.vpp_line_in_length = hd_end_lines - hd_start_lines + 1;
 362        hsc_startp = max_t(int, start, max_t(int, 0, video_left));
 363        hsc_endp = min_t(int, end, min_t(int, crtc_width - 1,
 364                                         video_left + video_width - 1));
 365
 366        hd_start_lines += crop_top;
 367        hd_end_lines += crop_top;
 368
 369        DRM_DEBUG("hsc startp %d endp %d start_lines %d end_lines %d\n",
 370                 hsc_startp, hsc_endp, hd_start_lines, hd_end_lines);
 371
 372        if (hd_start_lines > 0 || (hd_end_lines < w_in)) {
 373                afbc_left = 0;
 374                afbc_right = round_up(w_in, 32);
 375        } else {
 376                afbc_left = round_down(hd_start_lines, 32);
 377                afbc_right = round_up(hd_end_lines + 1, 32);
 378        }
 379
 380        DRM_DEBUG("afbc left %d right %d\n", afbc_left, afbc_right);
 381
 382        priv->viu.vpp_vsc_start_phase_step = ratio_y << 6;
 383
 384        priv->viu.vpp_vsc_ini_phase = vphase << 8;
 385        priv->viu.vpp_vsc_phase_ctrl = (1 << 13) | (4 << 8) |
 386                                       vphase_repeat_skip;
 387
 388        priv->viu.vd1_if0_luma_x0 = VD_X_START(hd_start_lines) |
 389                                    VD_X_END(hd_end_lines);
 390        priv->viu.vd1_if0_chroma_x0 = VD_X_START(hd_start_lines >> 1) |
 391                                      VD_X_END(hd_end_lines >> 1);
 392
 393        priv->viu.viu_vd1_fmt_w =
 394                        VD_H_WIDTH(hd_end_lines - hd_start_lines + 1) |
 395                        VD_V_WIDTH(hd_end_lines/2 - hd_start_lines/2 + 1);
 396
 397        priv->viu.vd1_afbc_vd_cfmt_w =
 398                        AFBC_VD_H_WIDTH(afbc_right - afbc_left) |
 399                        AFBC_VD_V_WIDTH(afbc_right / 2 - afbc_left / 2);
 400
 401        priv->viu.vd1_afbc_vd_cfmt_h =
 402                        AFBC_VD_HEIGHT((afbc_bottom - afbc_top) / 2);
 403
 404        priv->viu.vd1_afbc_mif_hor_scope = AFBC_MIF_BLK_BGN_H(afbc_left / 32) |
 405                                AFBC_MIF_BLK_END_H((afbc_right / 32) - 1);
 406
 407        priv->viu.vd1_afbc_mif_ver_scope = AFBC_MIF_BLK_BGN_V(afbc_top / 4) |
 408                                AFBC_MIF_BLK_END_H((afbc_bottom / 4) - 1);
 409
 410        priv->viu.vd1_afbc_size_out =
 411                        AFBC_HSIZE_OUT(afbc_right - afbc_left) |
 412                        AFBC_VSIZE_OUT(afbc_bottom - afbc_top);
 413
 414        priv->viu.vd1_afbc_pixel_hor_scope =
 415                        AFBC_DEC_PIXEL_BGN_H(hd_start_lines - afbc_left) |
 416                        AFBC_DEC_PIXEL_END_H(hd_end_lines - afbc_left);
 417
 418        priv->viu.vd1_afbc_pixel_ver_scope =
 419                        AFBC_DEC_PIXEL_BGN_V(vd_start_lines - afbc_top) |
 420                        AFBC_DEC_PIXEL_END_V(vd_end_lines - afbc_top);
 421
 422        priv->viu.vd1_afbc_size_in =
 423                                AFBC_HSIZE_IN(afbc_right - afbc_left) |
 424                                AFBC_VSIZE_IN(afbc_bottom_src - afbc_top_src);
 425
 426        priv->viu.vd1_if0_luma_y0 = VD_Y_START(vd_start_lines) |
 427                                    VD_Y_END(vd_end_lines);
 428
 429        priv->viu.vd1_if0_chroma_y0 = VD_Y_START(vd_start_lines >> 1) |
 430                                      VD_Y_END(vd_end_lines >> 1);
 431
 432        priv->viu.vpp_pic_in_height = h_in;
 433
 434        priv->viu.vpp_postblend_vd1_h_start_end = VD_H_START(hsc_startp) |
 435                                                  VD_H_END(hsc_endp);
 436        priv->viu.vpp_blend_vd2_h_start_end = VD_H_START(hd_start_lines) |
 437                                              VD_H_END(hd_end_lines);
 438        priv->viu.vpp_hsc_region12_startp = VD_REGION13_END(0) |
 439                                            VD_REGION24_START(hsc_startp);
 440        priv->viu.vpp_hsc_region34_startp =
 441                                VD_REGION13_END(hsc_startp) |
 442                                VD_REGION24_START(hsc_endp - hsc_startp);
 443        priv->viu.vpp_hsc_region4_endp = hsc_endp - hsc_startp;
 444        priv->viu.vpp_hsc_start_phase_step = ratio_x << 6;
 445        priv->viu.vpp_hsc_region1_phase_slope = 0;
 446        priv->viu.vpp_hsc_region3_phase_slope = 0;
 447        priv->viu.vpp_hsc_phase_ctrl = (1 << 21) | (4 << 16);
 448
 449        priv->viu.vpp_line_in_length = hd_end_lines - hd_start_lines + 1;
 450        priv->viu.vpp_preblend_h_size = hd_end_lines - hd_start_lines + 1;
 451
 452        priv->viu.vpp_postblend_vd1_v_start_end = VD_V_START(vsc_startp) |
 453                                                  VD_V_END(vsc_endp);
 454        priv->viu.vpp_blend_vd2_v_start_end =
 455                                VD2_V_START((vd_end_lines + 1) >> 1) |
 456                                VD2_V_END(vd_end_lines);
 457
 458        priv->viu.vpp_vsc_region12_startp = 0;
 459        priv->viu.vpp_vsc_region34_startp =
 460                                VD_REGION13_END(vsc_endp - vsc_startp) |
 461                                VD_REGION24_START(vsc_endp - vsc_startp);
 462        priv->viu.vpp_vsc_region4_endp = vsc_endp - vsc_startp;
 463        priv->viu.vpp_vsc_start_phase_step = ratio_y << 6;
 464}
 465
 466static void meson_overlay_atomic_update(struct drm_plane *plane,
 467                                        struct drm_plane_state *old_state)
 468{
 469        struct meson_overlay *meson_overlay = to_meson_overlay(plane);
 470        struct drm_plane_state *state = plane->state;
 471        struct drm_framebuffer *fb = state->fb;
 472        struct meson_drm *priv = meson_overlay->priv;
 473        struct drm_gem_cma_object *gem;
 474        unsigned long flags;
 475        bool interlace_mode;
 476
 477        DRM_DEBUG_DRIVER("\n");
 478
 479        interlace_mode = state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE;
 480
 481        spin_lock_irqsave(&priv->drm->event_lock, flags);
 482
 483        if ((fb->modifier & DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) ==
 484                            DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) {
 485                priv->viu.vd1_afbc = true;
 486
 487                priv->viu.vd1_afbc_mode = AFBC_MIF_URGENT(3) |
 488                                          AFBC_HOLD_LINE_NUM(8) |
 489                                          AFBC_BURST_LEN(2);
 490
 491                if (fb->modifier & DRM_FORMAT_MOD_AMLOGIC_FBC(0,
 492                                                AMLOGIC_FBC_OPTION_MEM_SAVING))
 493                        priv->viu.vd1_afbc_mode |= AFBC_BLK_MEM_MODE;
 494
 495                if ((fb->modifier & __fourcc_mod_amlogic_layout_mask) ==
 496                                AMLOGIC_FBC_LAYOUT_SCATTER)
 497                        priv->viu.vd1_afbc_mode |= AFBC_SCATTER_MODE;
 498
 499                priv->viu.vd1_afbc_en = 0x1600 | AFBC_DEC_ENABLE;
 500
 501                priv->viu.vd1_afbc_conv_ctrl = AFBC_CONV_LBUF_LEN(256);
 502
 503                priv->viu.vd1_afbc_dec_def_color = AFBC_DEF_COLOR_Y(1023);
 504
 505                /* 420: horizontal / 2, vertical / 4 */
 506                priv->viu.vd1_afbc_vd_cfmt_ctrl = AFBC_HORZ_RPT_PIXEL0 |
 507                                                  AFBC_HORZ_Y_C_RATIO(1) |
 508                                                  AFBC_HORZ_FMT_EN |
 509                                                  AFBC_VERT_RPT_LINE0 |
 510                                                  AFBC_VERT_INITIAL_PHASE(12) |
 511                                                  AFBC_VERT_PHASE_STEP(8) |
 512                                                  AFBC_VERT_FMT_EN;
 513
 514                switch (fb->format->format) {
 515                /* AFBC Only formats */
 516                case DRM_FORMAT_YUV420_10BIT:
 517                        priv->viu.vd1_afbc_mode |=
 518                                AFBC_COMPBITS_YUV(AFBC_COMPBITS_10BIT);
 519                        priv->viu.vd1_afbc_dec_def_color |=
 520                                        AFBC_DEF_COLOR_U(512) |
 521                                        AFBC_DEF_COLOR_V(512);
 522                        break;
 523                case DRM_FORMAT_YUV420_8BIT:
 524                        priv->viu.vd1_afbc_dec_def_color |=
 525                                        AFBC_DEF_COLOR_U(128) |
 526                                        AFBC_DEF_COLOR_V(128);
 527                        break;
 528                }
 529
 530                priv->viu.vd1_if0_gen_reg = 0;
 531                priv->viu.vd1_if0_canvas0 = 0;
 532                priv->viu.viu_vd1_fmt_ctrl = 0;
 533        } else {
 534                priv->viu.vd1_afbc = false;
 535
 536                priv->viu.vd1_if0_gen_reg = VD_URGENT_CHROMA |
 537                                            VD_URGENT_LUMA |
 538                                            VD_HOLD_LINES(9) |
 539                                            VD_CHRO_RPT_LASTL_CTRL |
 540                                            VD_ENABLE;
 541        }
 542
 543        /* Setup scaler params */
 544        meson_overlay_setup_scaler_params(priv, plane, interlace_mode);
 545
 546        priv->viu.vd1_if0_repeat_loop = 0;
 547        priv->viu.vd1_if0_luma0_rpt_pat = interlace_mode ? 8 : 0;
 548        priv->viu.vd1_if0_chroma0_rpt_pat = interlace_mode ? 8 : 0;
 549        priv->viu.vd1_range_map_y = 0;
 550        priv->viu.vd1_range_map_cb = 0;
 551        priv->viu.vd1_range_map_cr = 0;
 552
 553        /* Default values for RGB888/YUV444 */
 554        priv->viu.vd1_if0_gen_reg2 = 0;
 555        priv->viu.viu_vd1_fmt_ctrl = 0;
 556
 557        /* None will match for AFBC Only formats */
 558        switch (fb->format->format) {
 559        /* TOFIX DRM_FORMAT_RGB888 should be supported */
 560        case DRM_FORMAT_YUYV:
 561                priv->viu.vd1_if0_gen_reg |= VD_BYTES_PER_PIXEL(1);
 562                priv->viu.vd1_if0_canvas0 =
 563                                        CANVAS_ADDR2(priv->canvas_id_vd1_0) |
 564                                        CANVAS_ADDR1(priv->canvas_id_vd1_0) |
 565                                        CANVAS_ADDR0(priv->canvas_id_vd1_0);
 566                priv->viu.viu_vd1_fmt_ctrl = VD_HORZ_Y_C_RATIO(1) | /* /2 */
 567                                             VD_HORZ_FMT_EN |
 568                                             VD_VERT_RPT_LINE0 |
 569                                             VD_VERT_INITIAL_PHASE(12) |
 570                                             VD_VERT_PHASE_STEP(16) | /* /2 */
 571                                             VD_VERT_FMT_EN;
 572                break;
 573        case DRM_FORMAT_NV12:
 574        case DRM_FORMAT_NV21:
 575                priv->viu.vd1_if0_gen_reg |= VD_SEPARATE_EN;
 576                priv->viu.vd1_if0_canvas0 =
 577                                        CANVAS_ADDR2(priv->canvas_id_vd1_1) |
 578                                        CANVAS_ADDR1(priv->canvas_id_vd1_1) |
 579                                        CANVAS_ADDR0(priv->canvas_id_vd1_0);
 580                if (fb->format->format == DRM_FORMAT_NV12)
 581                        priv->viu.vd1_if0_gen_reg2 = VD_COLOR_MAP(1);
 582                else
 583                        priv->viu.vd1_if0_gen_reg2 = VD_COLOR_MAP(2);
 584                priv->viu.viu_vd1_fmt_ctrl = VD_HORZ_Y_C_RATIO(1) | /* /2 */
 585                                             VD_HORZ_FMT_EN |
 586                                             VD_VERT_RPT_LINE0 |
 587                                             VD_VERT_INITIAL_PHASE(12) |
 588                                             VD_VERT_PHASE_STEP(8) | /* /4 */
 589                                             VD_VERT_FMT_EN;
 590                break;
 591        case DRM_FORMAT_YUV444:
 592        case DRM_FORMAT_YUV422:
 593        case DRM_FORMAT_YUV420:
 594        case DRM_FORMAT_YUV411:
 595        case DRM_FORMAT_YUV410:
 596                priv->viu.vd1_if0_gen_reg |= VD_SEPARATE_EN;
 597                priv->viu.vd1_if0_canvas0 =
 598                                        CANVAS_ADDR2(priv->canvas_id_vd1_2) |
 599                                        CANVAS_ADDR1(priv->canvas_id_vd1_1) |
 600                                        CANVAS_ADDR0(priv->canvas_id_vd1_0);
 601                switch (fb->format->format) {
 602                case DRM_FORMAT_YUV422:
 603                        priv->viu.viu_vd1_fmt_ctrl =
 604                                        VD_HORZ_Y_C_RATIO(1) | /* /2 */
 605                                        VD_HORZ_FMT_EN |
 606                                        VD_VERT_RPT_LINE0 |
 607                                        VD_VERT_INITIAL_PHASE(12) |
 608                                        VD_VERT_PHASE_STEP(16) | /* /2 */
 609                                        VD_VERT_FMT_EN;
 610                        break;
 611                case DRM_FORMAT_YUV420:
 612                        priv->viu.viu_vd1_fmt_ctrl =
 613                                        VD_HORZ_Y_C_RATIO(1) | /* /2 */
 614                                        VD_HORZ_FMT_EN |
 615                                        VD_VERT_RPT_LINE0 |
 616                                        VD_VERT_INITIAL_PHASE(12) |
 617                                        VD_VERT_PHASE_STEP(8) | /* /4 */
 618                                        VD_VERT_FMT_EN;
 619                        break;
 620                case DRM_FORMAT_YUV411:
 621                        priv->viu.viu_vd1_fmt_ctrl =
 622                                        VD_HORZ_Y_C_RATIO(2) | /* /4 */
 623                                        VD_HORZ_FMT_EN |
 624                                        VD_VERT_RPT_LINE0 |
 625                                        VD_VERT_INITIAL_PHASE(12) |
 626                                        VD_VERT_PHASE_STEP(16) | /* /2 */
 627                                        VD_VERT_FMT_EN;
 628                        break;
 629                case DRM_FORMAT_YUV410:
 630                        priv->viu.viu_vd1_fmt_ctrl =
 631                                        VD_HORZ_Y_C_RATIO(2) | /* /4 */
 632                                        VD_HORZ_FMT_EN |
 633                                        VD_VERT_RPT_LINE0 |
 634                                        VD_VERT_INITIAL_PHASE(12) |
 635                                        VD_VERT_PHASE_STEP(8) | /* /4 */
 636                                        VD_VERT_FMT_EN;
 637                        break;
 638                }
 639                break;
 640        }
 641
 642        /* Update Canvas with buffer address */
 643        priv->viu.vd1_planes = fb->format->num_planes;
 644
 645        switch (priv->viu.vd1_planes) {
 646        case 3:
 647                gem = drm_fb_cma_get_gem_obj(fb, 2);
 648                priv->viu.vd1_addr2 = gem->paddr + fb->offsets[2];
 649                priv->viu.vd1_stride2 = fb->pitches[2];
 650                priv->viu.vd1_height2 =
 651                        drm_format_info_plane_height(fb->format,
 652                                                fb->height, 2);
 653                DRM_DEBUG("plane 2 addr 0x%x stride %d height %d\n",
 654                         priv->viu.vd1_addr2,
 655                         priv->viu.vd1_stride2,
 656                         priv->viu.vd1_height2);
 657                fallthrough;
 658        case 2:
 659                gem = drm_fb_cma_get_gem_obj(fb, 1);
 660                priv->viu.vd1_addr1 = gem->paddr + fb->offsets[1];
 661                priv->viu.vd1_stride1 = fb->pitches[1];
 662                priv->viu.vd1_height1 =
 663                        drm_format_info_plane_height(fb->format,
 664                                                fb->height, 1);
 665                DRM_DEBUG("plane 1 addr 0x%x stride %d height %d\n",
 666                         priv->viu.vd1_addr1,
 667                         priv->viu.vd1_stride1,
 668                         priv->viu.vd1_height1);
 669                fallthrough;
 670        case 1:
 671                gem = drm_fb_cma_get_gem_obj(fb, 0);
 672                priv->viu.vd1_addr0 = gem->paddr + fb->offsets[0];
 673                priv->viu.vd1_stride0 = fb->pitches[0];
 674                priv->viu.vd1_height0 =
 675                        drm_format_info_plane_height(fb->format,
 676                                                     fb->height, 0);
 677                DRM_DEBUG("plane 0 addr 0x%x stride %d height %d\n",
 678                         priv->viu.vd1_addr0,
 679                         priv->viu.vd1_stride0,
 680                         priv->viu.vd1_height0);
 681        }
 682
 683        if (priv->viu.vd1_afbc) {
 684                if (priv->viu.vd1_afbc_mode & AFBC_SCATTER_MODE) {
 685                        /*
 686                         * In Scatter mode, the header contains the physical
 687                         * body content layout, thus the body content
 688                         * size isn't needed.
 689                         */
 690                        priv->viu.vd1_afbc_head_addr = priv->viu.vd1_addr0 >> 4;
 691                        priv->viu.vd1_afbc_body_addr = 0;
 692                } else {
 693                        /* Default mode is 4k per superblock */
 694                        unsigned long block_size = 4096;
 695                        unsigned long body_size;
 696
 697                        /* 8bit mem saving mode is 3072bytes per superblock */
 698                        if (priv->viu.vd1_afbc_mode & AFBC_BLK_MEM_MODE)
 699                                block_size = 3072;
 700
 701                        body_size = (ALIGN(priv->viu.vd1_stride0, 64) / 64) *
 702                                    (ALIGN(priv->viu.vd1_height0, 32) / 32) *
 703                                    block_size;
 704
 705                        priv->viu.vd1_afbc_body_addr = priv->viu.vd1_addr0 >> 4;
 706                        /* Header is after body content */
 707                        priv->viu.vd1_afbc_head_addr = (priv->viu.vd1_addr0 +
 708                                                        body_size) >> 4;
 709                }
 710        }
 711
 712        priv->viu.vd1_enabled = true;
 713
 714        spin_unlock_irqrestore(&priv->drm->event_lock, flags);
 715
 716        DRM_DEBUG_DRIVER("\n");
 717}
 718
 719static void meson_overlay_atomic_disable(struct drm_plane *plane,
 720                                       struct drm_plane_state *old_state)
 721{
 722        struct meson_overlay *meson_overlay = to_meson_overlay(plane);
 723        struct meson_drm *priv = meson_overlay->priv;
 724
 725        DRM_DEBUG_DRIVER("\n");
 726
 727        priv->viu.vd1_enabled = false;
 728
 729        /* Disable VD1 */
 730        if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
 731                writel_relaxed(0, priv->io_base + _REG(VD1_BLEND_SRC_CTRL));
 732                writel_relaxed(0, priv->io_base + _REG(VD2_BLEND_SRC_CTRL));
 733                writel_relaxed(0, priv->io_base + _REG(VD1_IF0_GEN_REG + 0x17b0));
 734                writel_relaxed(0, priv->io_base + _REG(VD2_IF0_GEN_REG + 0x17b0));
 735        } else
 736                writel_bits_relaxed(VPP_VD1_POSTBLEND | VPP_VD1_PREBLEND, 0,
 737                                    priv->io_base + _REG(VPP_MISC));
 738
 739}
 740
 741static const struct drm_plane_helper_funcs meson_overlay_helper_funcs = {
 742        .atomic_check   = meson_overlay_atomic_check,
 743        .atomic_disable = meson_overlay_atomic_disable,
 744        .atomic_update  = meson_overlay_atomic_update,
 745        .prepare_fb     = drm_gem_fb_prepare_fb,
 746};
 747
 748static bool meson_overlay_format_mod_supported(struct drm_plane *plane,
 749                                               u32 format, u64 modifier)
 750{
 751        if (modifier == DRM_FORMAT_MOD_LINEAR &&
 752            format != DRM_FORMAT_YUV420_8BIT &&
 753            format != DRM_FORMAT_YUV420_10BIT)
 754                return true;
 755
 756        if ((modifier & DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) ==
 757                        DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) {
 758                unsigned int layout = modifier &
 759                        DRM_FORMAT_MOD_AMLOGIC_FBC(
 760                                __fourcc_mod_amlogic_layout_mask, 0);
 761                unsigned int options =
 762                        (modifier >> __fourcc_mod_amlogic_options_shift) &
 763                        __fourcc_mod_amlogic_options_mask;
 764
 765                if (format != DRM_FORMAT_YUV420_8BIT &&
 766                    format != DRM_FORMAT_YUV420_10BIT) {
 767                        DRM_DEBUG_KMS("%llx invalid format 0x%08x\n",
 768                                      modifier, format);
 769                        return false;
 770                }
 771
 772                if (layout != AMLOGIC_FBC_LAYOUT_BASIC &&
 773                    layout != AMLOGIC_FBC_LAYOUT_SCATTER) {
 774                        DRM_DEBUG_KMS("%llx invalid layout %x\n",
 775                                      modifier, layout);
 776                        return false;
 777                }
 778
 779                if (options &&
 780                    options != AMLOGIC_FBC_OPTION_MEM_SAVING) {
 781                        DRM_DEBUG_KMS("%llx invalid layout %x\n",
 782                                      modifier, layout);
 783                        return false;
 784                }
 785
 786                return true;
 787        }
 788
 789        DRM_DEBUG_KMS("invalid modifier %llx for format 0x%08x\n",
 790                      modifier, format);
 791
 792        return false;
 793}
 794
 795static const struct drm_plane_funcs meson_overlay_funcs = {
 796        .update_plane           = drm_atomic_helper_update_plane,
 797        .disable_plane          = drm_atomic_helper_disable_plane,
 798        .destroy                = drm_plane_cleanup,
 799        .reset                  = drm_atomic_helper_plane_reset,
 800        .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 801        .atomic_destroy_state   = drm_atomic_helper_plane_destroy_state,
 802        .format_mod_supported   = meson_overlay_format_mod_supported,
 803};
 804
 805static const uint32_t supported_drm_formats[] = {
 806        DRM_FORMAT_YUYV,
 807        DRM_FORMAT_NV12,
 808        DRM_FORMAT_NV21,
 809        DRM_FORMAT_YUV444,
 810        DRM_FORMAT_YUV422,
 811        DRM_FORMAT_YUV420,
 812        DRM_FORMAT_YUV411,
 813        DRM_FORMAT_YUV410,
 814        DRM_FORMAT_YUV420_8BIT, /* Amlogic FBC Only */
 815        DRM_FORMAT_YUV420_10BIT, /* Amlogic FBC Only */
 816};
 817
 818static const uint64_t format_modifiers[] = {
 819        DRM_FORMAT_MOD_AMLOGIC_FBC(AMLOGIC_FBC_LAYOUT_SCATTER,
 820                                   AMLOGIC_FBC_OPTION_MEM_SAVING),
 821        DRM_FORMAT_MOD_AMLOGIC_FBC(AMLOGIC_FBC_LAYOUT_BASIC,
 822                                   AMLOGIC_FBC_OPTION_MEM_SAVING),
 823        DRM_FORMAT_MOD_AMLOGIC_FBC(AMLOGIC_FBC_LAYOUT_SCATTER, 0),
 824        DRM_FORMAT_MOD_AMLOGIC_FBC(AMLOGIC_FBC_LAYOUT_BASIC, 0),
 825        DRM_FORMAT_MOD_LINEAR,
 826        DRM_FORMAT_MOD_INVALID,
 827};
 828
 829int meson_overlay_create(struct meson_drm *priv)
 830{
 831        struct meson_overlay *meson_overlay;
 832        struct drm_plane *plane;
 833
 834        DRM_DEBUG_DRIVER("\n");
 835
 836        meson_overlay = devm_kzalloc(priv->drm->dev, sizeof(*meson_overlay),
 837                                   GFP_KERNEL);
 838        if (!meson_overlay)
 839                return -ENOMEM;
 840
 841        meson_overlay->priv = priv;
 842        plane = &meson_overlay->base;
 843
 844        drm_universal_plane_init(priv->drm, plane, 0xFF,
 845                                 &meson_overlay_funcs,
 846                                 supported_drm_formats,
 847                                 ARRAY_SIZE(supported_drm_formats),
 848                                 format_modifiers,
 849                                 DRM_PLANE_TYPE_OVERLAY, "meson_overlay_plane");
 850
 851        drm_plane_helper_add(plane, &meson_overlay_helper_funcs);
 852
 853        /* For now, VD Overlay plane is always on the back */
 854        drm_plane_create_zpos_immutable_property(plane, 0);
 855
 856        priv->overlay_plane = plane;
 857
 858        DRM_DEBUG_DRIVER("\n");
 859
 860        return 0;
 861}
 862