drivers/gpu/drm/rockchip/rockchip_drm_vop.c

   1 /*
   2  * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
   3  * Author:Mark Yao <mark.yao@rock-chips.com>
   4  *
   5  * This software is licensed under the terms of the GNU General Public
   6  * License version 2, as published by the Free Software Foundation, and
   7  * may be copied, distributed, and modified under those terms.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include <drm/drm.h>
  16 #include <drm/drmP.h>
  17 #include <drm/drm_atomic.h>
  18 #include <drm/drm_crtc.h>
  19 #include <drm/drm_crtc_helper.h>
  20 #include <drm/drm_plane_helper.h>
  21
  22 #include <linux/kernel.h>
  23 #include <linux/module.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/clk.h>
  26 #include <linux/of.h>
  27 #include <linux/of_device.h>
  28 #include <linux/pm_runtime.h>
  29 #include <linux/component.h>
  30
  31 #include <linux/reset.h>
  32 #include <linux/delay.h>
  33 #include <linux/sort.h>
  34
  35 #include "rockchip_drm_drv.h"
  36 #include "rockchip_drm_gem.h"
  37 #include "rockchip_drm_fb.h"
  38 #include "rockchip_drm_vop.h"
  39
  40 #define VOP_REG_SUPPORT(vop, reg) \
  41                 (!reg.major || (reg.major == VOP_MAJOR(vop->data->version) && \
  42                 reg.begin_minor <= VOP_MINOR(vop->data->version) && \
  43                 reg.end_minor >= VOP_MINOR(vop->data->version) && \
  44                 reg.mask))
  45
  46 #define VOP_WIN_SUPPORT(vop, win, name) \
  47                 VOP_REG_SUPPORT(vop, win->phy->name)
  48
  49 #define VOP_CTRL_SUPPORT(vop, win, name) \
  50                 VOP_REG_SUPPORT(vop, vop->data->ctrl->name)
  51
  52 #define VOP_INTR_SUPPORT(vop, win, name) \
  53                 VOP_REG_SUPPORT(vop, vop->data->intr->name)
  54
  55 #define __REG_SET(x, off, mask, shift, v, write_mask, relaxed) \
  56                 vop_mask_write(x, off, mask, shift, v, write_mask, relaxed)
  57
  58 #define _REG_SET(vop, name, off, reg, mask, v, relaxed) \
  59         do { \
  60                 if (VOP_REG_SUPPORT(vop, reg)) \
  61                         __REG_SET(vop, off + reg.offset, mask, reg.shift, \
  62                                   v, reg.write_mask, relaxed); \
  63                 else \
  64                         dev_dbg(vop->dev, "Warning: not support "#name"\n"); \
  65         } while(0)
  66
  67 #define REG_SET(x, name, off, reg, v, relaxed) \
  68                 _REG_SET(x, name, off, reg, reg.mask, v, relaxed)
  69 #define REG_SET_MASK(x, name, off, reg, mask, v, relaxed) \
  70                 _REG_SET(x, name, off, reg, reg.mask & mask, v, relaxed)
  71
  72 #define VOP_WIN_SET(x, win, name, v) \
  73                 REG_SET(x, name, win->offset, VOP_WIN_NAME(win, name), v, true)
  74 #define VOP_SCL_SET(x, win, name, v) \
  75                 REG_SET(x, name, win->offset, win->phy->scl->name, v, true)
  76 #define VOP_SCL_SET_EXT(x, win, name, v) \
  77                 REG_SET(x, name, win->offset, win->phy->scl->ext->name, v, true)
  78
  79 #define VOP_CTRL_SET(x, name, v) \
  80                 REG_SET(x, name, 0, (x)->data->ctrl->name, v, false)
  81
  82 #define VOP_INTR_GET(vop, name) \
  83                 vop_read_reg(vop, 0, &vop->data->ctrl->name)
  84
  85 #define VOP_INTR_SET(vop, name, mask, v) \
  86                 REG_SET_MASK(vop, name, 0, vop->data->intr->name, \
  87                              mask, v, false)
  88
  89 #define VOP_INTR_SET_TYPE(vop, name, type, v) \
  90         do { \
  91                 int i, reg = 0, mask = 0; \
  92                 for (i = 0; i < vop->data->intr->nintrs; i++) { \
  93                         if (vop->data->intr->intrs[i] & type) { \
  94                                 reg |= (v) << i; \
  95                                 mask |= 1 << i; \
  96                         } \
  97                 } \
  98                 VOP_INTR_SET(vop, name, mask, reg); \
  99         } while (0)
 100 #define VOP_INTR_GET_TYPE(vop, name, type) \
 101                 vop_get_intr_type(vop, &vop->data->intr->name, type)
 102
 103 #define VOP_CTRL_GET(x, name) \
 104                 vop_read_reg(x, 0, vop->data->ctrl->name)
 105
 106 #define VOP_WIN_GET(x, win, name) \
 107                 vop_read_reg(x, win->offset, &VOP_WIN_NAME(win, name))
 108
 109 #define VOP_WIN_NAME(win, name) \
 110                 (vop_get_win_phy(win, &win->phy->name)->name)
 111
 112 #define VOP_WIN_GET_YRGBADDR(vop, win) \
 113                 vop_readl(vop, win->offset + VOP_WIN_NAME(win, yrgb_mst).offset)
 114
 115 #define to_vop(x) container_of(x, struct vop, crtc)
 116 #define to_vop_win(x) container_of(x, struct vop_win, base)
 117 #define to_vop_plane_state(x) container_of(x, struct vop_plane_state, base)
 118
 119 struct vop_zpos {
 120         int win_id;
 121         int zpos;
 122 };
 123
 124 struct vop_plane_state {
 125         struct drm_plane_state base;
 126         int format;
 127         int zpos;
 128         struct drm_rect src;
 129         struct drm_rect dest;
 130         dma_addr_t yrgb_mst;
 131         bool enable;
 132 };
 133
 134 struct vop_win {
 135         struct vop_win *parent;
 136         struct drm_plane base;
 137
 138         int win_id;
 139         int area_id;
 140         uint32_t offset;
 141         enum drm_plane_type type;
 142         const struct vop_win_phy *phy;
 143         const uint32_t *data_formats;
 144         uint32_t nformats;
 145         struct vop *vop;
 146
 147         struct drm_property *rotation_prop;
 148         struct vop_plane_state state;
 149 };
 150
 151 struct vop {
 152         struct drm_crtc crtc;
 153         struct device *dev;
 154         struct drm_device *drm_dev;
 155         struct drm_property *plane_zpos_prop;
 156         bool is_enabled;
 157
 158         /* mutex vsync_ work */
 159         struct mutex vsync_mutex;
 160         bool vsync_work_pending;
 161         struct completion dsp_hold_completion;
 162         struct completion wait_update_complete;
 163         struct drm_pending_vblank_event *event;
 164
 165         const struct vop_data *data;
 166         int num_wins;
 167
 168         uint32_t *regsbak;
 169         void __iomem *regs;
 170
 171         /* physical map length of vop register */
 172         uint32_t len;
 173
 174         /* one time only one process allowed to config the register */
 175         spinlock_t reg_lock;
 176         /* lock vop irq reg */
 177         spinlock_t irq_lock;
 178
 179         unsigned int irq;
 180
 181         /* vop AHP clk */
 182         struct clk *hclk;
 183         /* vop dclk */
 184         struct clk *dclk;
 185         /* vop share memory frequency */
 186         struct clk *aclk;
 187
 188         /* vop dclk reset */
 189         struct reset_control *dclk_rst;
 190
 191         struct vop_win win[];
 192 };
 193
 194 static inline void vop_writel(struct vop *vop, uint32_t offset, uint32_t v)
 195 {
 196         writel(v, vop->regs + offset);
 197         vop->regsbak[offset >> 2] = v;
 198 }
 199
 200 static inline uint32_t vop_readl(struct vop *vop, uint32_t offset)
 201 {
 202         return readl(vop->regs + offset);
 203 }
 204
 205 static inline uint32_t vop_read_reg(struct vop *vop, uint32_t base,
 206                                     const struct vop_reg *reg)
 207 {
 208         return (vop_readl(vop, base + reg->offset) >> reg->shift) & reg->mask;
 209 }
 210
 211 static inline void vop_mask_write(struct vop *vop, uint32_t offset,
 212                                   uint32_t mask, uint32_t shift, uint32_t v,
 213                                   bool write_mask, bool relaxed)
 214 {
 215         if (!mask)
 216                 return;
 217
 218         if (write_mask) {
 219                 v = ((v & mask) << shift) | (mask << (shift + 16));
 220         } else {
 221                 uint32_t cached_val = vop->regsbak[offset >> 2];
 222
 223                 v = (cached_val & ~(mask << shift)) | ((v & mask) << shift);
 224                 vop->regsbak[offset >> 2] = v;
 225         }
 226
 227         if (relaxed)
 228                 writel_relaxed(v, vop->regs + offset);
 229         else
 230                 writel(v, vop->regs + offset);
 231 }
 232
 233 static inline const struct vop_win_phy *
 234 vop_get_win_phy(struct vop_win *win, const struct vop_reg *reg)
 235 {
 236         if (!reg->mask && win->parent)
 237                 return win->parent->phy;
 238
 239         return win->phy;
 240 }
 241
 242 static inline uint32_t vop_get_intr_type(struct vop *vop,
 243                                          const struct vop_reg *reg, int type)
 244 {
 245         uint32_t i, ret = 0;
 246         uint32_t regs = vop_read_reg(vop, 0, reg);
 247
 248         for (i = 0; i < vop->data->intr->nintrs; i++) {
 249                 if ((type & vop->data->intr->intrs[i]) && (regs & 1 << i))
 250                         ret |= vop->data->intr->intrs[i];
 251         }
 252
 253         return ret;
 254 }
 255
 256 static inline void vop_cfg_done(struct vop *vop)
 257 {
 258         VOP_CTRL_SET(vop, cfg_done, 1);
 259 }
 260
 261 static bool has_rb_swapped(uint32_t format)
 262 {
 263         switch (format) {
 264         case DRM_FORMAT_XBGR8888:
 265         case DRM_FORMAT_ABGR8888:
 266         case DRM_FORMAT_BGR888:
 267         case DRM_FORMAT_BGR565:
 268                 return true;
 269         default:
 270                 return false;
 271         }
 272 }
 273
 274 static enum vop_data_format vop_convert_format(uint32_t format)
 275 {
 276         switch (format) {
 277         case DRM_FORMAT_XRGB8888:
 278         case DRM_FORMAT_ARGB8888:
 279         case DRM_FORMAT_XBGR8888:
 280         case DRM_FORMAT_ABGR8888:
 281                 return VOP_FMT_ARGB8888;
 282         case DRM_FORMAT_RGB888:
 283         case DRM_FORMAT_BGR888:
 284                 return VOP_FMT_RGB888;
 285         case DRM_FORMAT_RGB565:
 286         case DRM_FORMAT_BGR565:
 287                 return VOP_FMT_RGB565;
 288         case DRM_FORMAT_NV12:
 289                 return VOP_FMT_YUV420SP;
 290         case DRM_FORMAT_NV16:
 291                 return VOP_FMT_YUV422SP;
 292         case DRM_FORMAT_NV24:
 293                 return VOP_FMT_YUV444SP;
 294         default:
 295                 DRM_ERROR("unsupport format[%08x]\n", format);
 296                 return -EINVAL;
 297         }
 298 }
 299
 300 static bool is_yuv_support(uint32_t format)
 301 {
 302         switch (format) {
 303         case DRM_FORMAT_NV12:
 304         case DRM_FORMAT_NV16:
 305         case DRM_FORMAT_NV24:
 306                 return true;
 307         default:
 308                 return false;
 309         }
 310 }
 311
 312 static bool is_alpha_support(uint32_t format)
 313 {
 314         switch (format) {
 315         case DRM_FORMAT_ARGB8888:
 316         case DRM_FORMAT_ABGR8888:
 317                 return true;
 318         default:
 319                 return false;
 320         }
 321 }
 322
 323 static uint16_t scl_vop_cal_scale(enum scale_mode mode, uint32_t src,
 324                                   uint32_t dst, bool is_horizontal,
 325                                   int vsu_mode, int *vskiplines)
 326 {
 327         uint16_t val = 1 << SCL_FT_DEFAULT_FIXPOINT_SHIFT;
 328
 329         if (is_horizontal) {
 330                 if (mode == SCALE_UP)
 331                         val = GET_SCL_FT_BIC(src, dst);
 332                 else if (mode == SCALE_DOWN)
 333                         val = GET_SCL_FT_BILI_DN(src, dst);
 334         } else {
 335                 if (mode == SCALE_UP) {
 336                         if (vsu_mode == SCALE_UP_BIL)
 337                                 val = GET_SCL_FT_BILI_UP(src, dst);
 338                         else
 339                                 val = GET_SCL_FT_BIC(src, dst);
 340                 } else if (mode == SCALE_DOWN) {
 341                         if (vskiplines) {
 342                                 *vskiplines = scl_get_vskiplines(src, dst);
 343                                 val = scl_get_bili_dn_vskip(src, dst,
 344                                                             *vskiplines);
 345                         } else {
 346                                 val = GET_SCL_FT_BILI_DN(src, dst);
 347                         }
 348                 }
 349         }
 350
 351         return val;
 352 }
 353
 354 static void scl_vop_cal_scl_fac(struct vop *vop, struct vop_win *win,
 355                                 uint32_t src_w, uint32_t src_h, uint32_t dst_w,
 356                                 uint32_t dst_h, uint32_t pixel_format)
 357 {
 358         uint16_t yrgb_hor_scl_mode, yrgb_ver_scl_mode;
 359         uint16_t cbcr_hor_scl_mode = SCALE_NONE;
 360         uint16_t cbcr_ver_scl_mode = SCALE_NONE;
 361         int hsub = drm_format_horz_chroma_subsampling(pixel_format);
 362         int vsub = drm_format_vert_chroma_subsampling(pixel_format);
 363         bool is_yuv = is_yuv_support(pixel_format);
 364         uint16_t cbcr_src_w = src_w / hsub;
 365         uint16_t cbcr_src_h = src_h / vsub;
 366         uint16_t vsu_mode;
 367         uint16_t lb_mode;
 368         uint32_t val;
 369         int vskiplines = 0;
 370
 371         if (!win->phy->scl)
 372                 return;
 373
 374         if (dst_w > 3840) {
 375                 DRM_ERROR("Maximum destination width (3840) exceeded\n");
 376                 return;
 377         }
 378
 379         if (!win->phy->scl->ext) {
 380                 VOP_SCL_SET(vop, win, scale_yrgb_x,
 381                             scl_cal_scale2(src_w, dst_w));
 382                 VOP_SCL_SET(vop, win, scale_yrgb_y,
 383                             scl_cal_scale2(src_h, dst_h));
 384                 if (is_yuv) {
 385                         VOP_SCL_SET(vop, win, scale_cbcr_x,
 386                                     scl_cal_scale2(cbcr_src_w, dst_w));
 387                         VOP_SCL_SET(vop, win, scale_cbcr_y,
 388                                     scl_cal_scale2(cbcr_src_h, dst_h));
 389                 }
 390                 return;
 391         }
 392
 393         yrgb_hor_scl_mode = scl_get_scl_mode(src_w, dst_w);
 394         yrgb_ver_scl_mode = scl_get_scl_mode(src_h, dst_h);
 395
 396         if (is_yuv) {
 397                 cbcr_hor_scl_mode = scl_get_scl_mode(cbcr_src_w, dst_w);
 398                 cbcr_ver_scl_mode = scl_get_scl_mode(cbcr_src_h, dst_h);
 399                 if (cbcr_hor_scl_mode == SCALE_DOWN)
 400                         lb_mode = scl_vop_cal_lb_mode(dst_w, true);
 401                 else
 402                         lb_mode = scl_vop_cal_lb_mode(cbcr_src_w, true);
 403         } else {
 404                 if (yrgb_hor_scl_mode == SCALE_DOWN)
 405                         lb_mode = scl_vop_cal_lb_mode(dst_w, false);
 406                 else
 407                         lb_mode = scl_vop_cal_lb_mode(src_w, false);
 408         }
 409
 410         VOP_SCL_SET_EXT(vop, win, lb_mode, lb_mode);
 411         if (lb_mode == LB_RGB_3840X2) {
 412                 if (yrgb_ver_scl_mode != SCALE_NONE) {
 413                         DRM_ERROR("ERROR : not allow yrgb ver scale\n");
 414                         return;
 415                 }
 416                 if (cbcr_ver_scl_mode != SCALE_NONE) {
 417                         DRM_ERROR("ERROR : not allow cbcr ver scale\n");
 418                         return;
 419                 }
 420                 vsu_mode = SCALE_UP_BIL;
 421         } else if (lb_mode == LB_RGB_2560X4) {
 422                 vsu_mode = SCALE_UP_BIL;
 423         } else {
 424                 vsu_mode = SCALE_UP_BIC;
 425         }
 426
 427         val = scl_vop_cal_scale(yrgb_hor_scl_mode, src_w, dst_w,
 428                                 true, 0, NULL);
 429         VOP_SCL_SET(vop, win, scale_yrgb_x, val);
 430         val = scl_vop_cal_scale(yrgb_ver_scl_mode, src_h, dst_h,
 431                                 false, vsu_mode, &vskiplines);
 432         VOP_SCL_SET(vop, win, scale_yrgb_y, val);
 433
 434         VOP_SCL_SET_EXT(vop, win, vsd_yrgb_gt4, vskiplines == 4);
 435         VOP_SCL_SET_EXT(vop, win, vsd_yrgb_gt2, vskiplines == 2);
 436
 437         VOP_SCL_SET_EXT(vop, win, yrgb_hor_scl_mode, yrgb_hor_scl_mode);
 438         VOP_SCL_SET_EXT(vop, win, yrgb_ver_scl_mode, yrgb_ver_scl_mode);
 439         VOP_SCL_SET_EXT(vop, win, yrgb_hsd_mode, SCALE_DOWN_BIL);
 440         VOP_SCL_SET_EXT(vop, win, yrgb_vsd_mode, SCALE_DOWN_BIL);
 441         VOP_SCL_SET_EXT(vop, win, yrgb_vsu_mode, vsu_mode);
 442         if (is_yuv) {
 443                 val = scl_vop_cal_scale(cbcr_hor_scl_mode, cbcr_src_w,
 444                                         dst_w, true, 0, NULL);
 445                 VOP_SCL_SET(vop, win, scale_cbcr_x, val);
 446                 val = scl_vop_cal_scale(cbcr_ver_scl_mode, cbcr_src_h,
 447                                         dst_h, false, vsu_mode, &vskiplines);
 448                 VOP_SCL_SET(vop, win, scale_cbcr_y, val);
 449
 450                 VOP_SCL_SET_EXT(vop, win, vsd_cbcr_gt4, vskiplines == 4);
 451                 VOP_SCL_SET_EXT(vop, win, vsd_cbcr_gt2, vskiplines == 2);
 452                 VOP_SCL_SET_EXT(vop, win, cbcr_hor_scl_mode, cbcr_hor_scl_mode);
 453                 VOP_SCL_SET_EXT(vop, win, cbcr_ver_scl_mode, cbcr_ver_scl_mode);
 454                 VOP_SCL_SET_EXT(vop, win, cbcr_hsd_mode, SCALE_DOWN_BIL);
 455                 VOP_SCL_SET_EXT(vop, win, cbcr_vsd_mode, SCALE_DOWN_BIL);
 456                 VOP_SCL_SET_EXT(vop, win, cbcr_vsu_mode, vsu_mode);
 457         }
 458 }
 459
 460 static void vop_dsp_hold_valid_irq_enable(struct vop *vop)
 461 {
 462         unsigned long flags;
 463
 464         if (WARN_ON(!vop->is_enabled))
 465                 return;
 466
 467         spin_lock_irqsave(&vop->irq_lock, flags);
 468
 469         VOP_INTR_SET_TYPE(vop, enable, DSP_HOLD_VALID_INTR, 1);
 470
 471         spin_unlock_irqrestore(&vop->irq_lock, flags);
 472 }
 473
 474 static void vop_dsp_hold_valid_irq_disable(struct vop *vop)
 475 {
 476         unsigned long flags;
 477
 478         if (WARN_ON(!vop->is_enabled))
 479                 return;
 480
 481         spin_lock_irqsave(&vop->irq_lock, flags);
 482
 483         VOP_INTR_SET_TYPE(vop, enable, DSP_HOLD_VALID_INTR, 0);
 484
 485         spin_unlock_irqrestore(&vop->irq_lock, flags);
 486 }
 487
 488 static void vop_enable(struct drm_crtc *crtc)
 489 {
 490         struct vop *vop = to_vop(crtc);
 491         int ret, i;
 492
 493         if (vop->is_enabled)
 494                 return;
 495
 496         ret = clk_prepare_enable(vop->hclk);
 497         if (ret < 0) {
 498                 dev_err(vop->dev, "failed to enable hclk - %d\n", ret);
 499                 return;
 500         }
 501
 502         ret = clk_prepare_enable(vop->dclk);
 503         if (ret < 0) {
 504                 dev_err(vop->dev, "failed to enable dclk - %d\n", ret);
 505                 goto err_disable_hclk;
 506         }
 507
 508         ret = clk_prepare_enable(vop->aclk);
 509         if (ret < 0) {
 510                 dev_err(vop->dev, "failed to enable aclk - %d\n", ret);
 511                 goto err_disable_dclk;
 512         }
 513
 514         ret = pm_runtime_get_sync(vop->dev);
 515         if (ret < 0) {
 516                 dev_err(vop->dev, "failed to get pm runtime: %d\n", ret);
 517                 return;
 518         }
 519
 520         /*
 521          * Slave iommu shares power, irq and clock with vop.  It was associated
 522          * automatically with this master device via common driver code.
 523          * Now that we have enabled the clock we attach it to the shared drm
 524          * mapping.
 525          */
 526         ret = rockchip_drm_dma_attach_device(vop->drm_dev, vop->dev);
 527         if (ret) {
 528                 dev_err(vop->dev, "failed to attach dma mapping, %d\n", ret);
 529                 goto err_disable_aclk;
 530         }
 531
 532         memcpy(vop->regsbak, vop->regs, vop->len);
 533
 534         VOP_CTRL_SET(vop, global_regdone_en, 1);
 535
 536         for (i = 0; i < vop->num_wins; i++) {
 537                 struct vop_win *win = &vop->win[i];
 538
 539                 VOP_WIN_SET(vop, win, gate, 1);
 540         }
 541
 542         /*
 543          * At here, vop clock & iommu is enable, R/W vop regs would be safe.
 544          */
 545         vop->is_enabled = true;
 546
 547         spin_lock(&vop->reg_lock);
 548
 549         VOP_CTRL_SET(vop, standby, 0);
 550
 551         spin_unlock(&vop->reg_lock);
 552
 553         enable_irq(vop->irq);
 554
 555         drm_crtc_vblank_on(crtc);
 556
 557         return;
 558
 559 err_disable_aclk:
 560         clk_disable_unprepare(vop->aclk);
 561 err_disable_dclk:
 562         clk_disable_unprepare(vop->dclk);
 563 err_disable_hclk:
 564         clk_disable_unprepare(vop->hclk);
 565 }
 566
 567 static void vop_crtc_disable(struct drm_crtc *crtc)
 568 {
 569         struct vop *vop = to_vop(crtc);
 570         int i;
 571
 572         if (!vop->is_enabled)
 573                 return;
 574
 575         /*
 576          * We need to make sure that all windows are disabled before we
 577          * disable that crtc. Otherwise we might try to scan from a destroyed
 578          * buffer later.
 579          */
 580         for (i = 0; i < vop->num_wins; i++) {
 581                 struct vop_win *win = &vop->win[i];
 582
 583                 spin_lock(&vop->reg_lock);
 584                 VOP_WIN_SET(vop, win, enable, 0);
 585                 spin_unlock(&vop->reg_lock);
 586         }
 587
 588         drm_crtc_vblank_off(crtc);
 589
 590         /*
 591          * Vop standby will take effect at end of current frame,
 592          * if dsp hold valid irq happen, it means standby complete.
 593          *
 594          * we must wait standby complete when we want to disable aclk,
 595          * if not, memory bus maybe dead.
 596          */
 597         reinit_completion(&vop->dsp_hold_completion);
 598         vop_dsp_hold_valid_irq_enable(vop);
 599
 600         spin_lock(&vop->reg_lock);
 601
 602         VOP_CTRL_SET(vop, standby, 1);
 603
 604         spin_unlock(&vop->reg_lock);
 605
 606         wait_for_completion(&vop->dsp_hold_completion);
 607
 608         vop_dsp_hold_valid_irq_disable(vop);
 609
 610         disable_irq(vop->irq);
 611
 612         vop->is_enabled = false;
 613
 614         /*
 615          * vop standby complete, so iommu detach is safe.
 616          */
 617         rockchip_drm_dma_detach_device(vop->drm_dev, vop->dev);
 618
 619         pm_runtime_put(vop->dev);
 620         clk_disable_unprepare(vop->dclk);
 621         clk_disable_unprepare(vop->aclk);
 622         clk_disable_unprepare(vop->hclk);
 623 }
 624
 625 static void vop_plane_destroy(struct drm_plane *plane)
 626 {
 627         drm_plane_cleanup(plane);
 628 }
 629
 630 static int vop_plane_prepare_fb(struct drm_plane *plane,
 631                                 const struct drm_plane_state *new_state)
 632 {
 633         if (plane->state->fb)
 634                 drm_framebuffer_reference(plane->state->fb);
 635
 636         return 0;
 637 }
 638
 639 static void vop_plane_cleanup_fb(struct drm_plane *plane,
 640                                  const struct drm_plane_state *old_state)
 641 {
 642         if (old_state->fb)
 643                 drm_framebuffer_unreference(old_state->fb);
 644 }
 645
 646 static int vop_plane_atomic_check(struct drm_plane *plane,
 647                            struct drm_plane_state *state)
 648 {
 649         struct drm_crtc *crtc = state->crtc;
 650         struct drm_framebuffer *fb = state->fb;
 651         struct vop_win *win = to_vop_win(plane);
 652         struct vop_plane_state *vop_plane_state = to_vop_plane_state(state);
 653         struct drm_crtc_state *crtc_state;
 654         bool visible;
 655         int ret;
 656         struct drm_rect *dest = &vop_plane_state->dest;
 657         struct drm_rect *src = &vop_plane_state->src;
 658         struct drm_rect clip;
 659         int min_scale = win->phy->scl ? FRAC_16_16(1, 8) :
 660                                         DRM_PLANE_HELPER_NO_SCALING;
 661         int max_scale = win->phy->scl ? FRAC_16_16(8, 1) :
 662                                         DRM_PLANE_HELPER_NO_SCALING;
 663
 664         crtc = crtc ? crtc : plane->state->crtc;
 665         /*
 666          * Both crtc or plane->state->crtc can be null.
 667          */
 668         if (!crtc || !fb)
 669                 goto out_disable;
 670
 671         crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
 672         if (IS_ERR(crtc_state))
 673                 return PTR_ERR(crtc_state);
 674
 675         src->x1 = state->src_x;
 676         src->y1 = state->src_y;
 677         src->x2 = state->src_x + state->src_w;
 678         src->y2 = state->src_y + state->src_h;
 679         dest->x1 = state->crtc_x;
 680         dest->y1 = state->crtc_y;
 681         dest->x2 = state->crtc_x + state->crtc_w;
 682         dest->y2 = state->crtc_y + state->crtc_h;
 683
 684         clip.x1 = 0;
 685         clip.y1 = 0;
 686         clip.x2 = crtc_state->mode.hdisplay;
 687         clip.y2 = crtc_state->mode.vdisplay;
 688
 689         ret = drm_plane_helper_check_update(plane, crtc, state->fb,
 690                                             src, dest, &clip,
 691                                             min_scale,
 692                                             max_scale,
 693                                             true, true, &visible);
 694         if (ret)
 695                 return ret;
 696
 697         if (!visible)
 698                 goto out_disable;
 699
 700         vop_plane_state->format = vop_convert_format(fb->pixel_format);
 701         if (vop_plane_state->format < 0)
 702                 return vop_plane_state->format;
 703
 704         /*
 705          * Src.x1 can be odd when do clip, but yuv plane start point
 706          * need align with 2 pixel.
 707          */
 708         if (is_yuv_support(fb->pixel_format) && ((src->x1 >> 16) % 2))
 709                 return -EINVAL;
 710
 711         vop_plane_state->enable = true;
 712
 713         return 0;
 714
 715 out_disable:
 716         vop_plane_state->enable = false;
 717         return 0;
 718 }
 719
 720 static void vop_plane_atomic_disable(struct drm_plane *plane,
 721                                      struct drm_plane_state *old_state)
 722 {
 723         struct vop_plane_state *vop_plane_state = to_vop_plane_state(old_state);
 724         struct vop_win *win = to_vop_win(plane);
 725         struct vop *vop = to_vop(old_state->crtc);
 726
 727         if (!old_state->crtc)
 728                 return;
 729
 730         spin_lock(&vop->reg_lock);
 731
 732         VOP_WIN_SET(vop, win, enable, 0);
 733
 734         spin_unlock(&vop->reg_lock);
 735
 736         vop_plane_state->enable = false;
 737 }
 738
 739 static void vop_plane_atomic_update(struct drm_plane *plane,
 740                 struct drm_plane_state *old_state)
 741 {
 742         struct drm_plane_state *state = plane->state;
 743         struct drm_crtc *crtc = state->crtc;
 744         struct vop_win *win = to_vop_win(plane);
 745         struct vop_plane_state *vop_plane_state = to_vop_plane_state(state);
 746         struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc->state);
 747         struct vop *vop = to_vop(state->crtc);
 748         struct drm_framebuffer *fb = state->fb;
 749         unsigned int actual_w, actual_h;
 750         unsigned int dsp_stx, dsp_sty;
 751         uint32_t act_info, dsp_info, dsp_st;
 752         struct drm_rect *src = &vop_plane_state->src;
 753         struct drm_rect *dest = &vop_plane_state->dest;
 754         struct drm_gem_object *obj, *uv_obj;
 755         struct rockchip_gem_object *rk_obj, *rk_uv_obj;
 756         unsigned long offset;
 757         dma_addr_t dma_addr;
 758         int ymirror, xmirror;
 759         uint32_t val;
 760         bool rb_swap;
 761
 762         /*
 763          * can't update plane when vop is disabled.
 764          */
 765         if (!crtc)
 766                 return;
 767
 768         if (WARN_ON(!vop->is_enabled))
 769                 return;
 770
 771         if (!vop_plane_state->enable) {
 772                 vop_plane_atomic_disable(plane, old_state);
 773                 return;
 774         }
 775
 776         obj = rockchip_fb_get_gem_obj(fb, 0);
 777         rk_obj = to_rockchip_obj(obj);
 778
 779         actual_w = drm_rect_width(src) >> 16;
 780         actual_h = drm_rect_height(src) >> 16;
 781         act_info = (actual_h - 1) << 16 | ((actual_w - 1) & 0xffff);
 782
 783         dsp_info = (drm_rect_height(dest) - 1) << 16;
 784         dsp_info |= (drm_rect_width(dest) - 1) & 0xffff;
 785
 786         dsp_stx = dest->x1 + crtc->mode.htotal - crtc->mode.hsync_start;
 787         dsp_sty = dest->y1 + crtc->mode.vtotal - crtc->mode.vsync_start;
 788         dsp_st = dsp_sty << 16 | (dsp_stx & 0xffff);
 789
 790         offset = (src->x1 >> 16) * drm_format_plane_cpp(fb->pixel_format, 0);
 791         if (state->rotation & BIT(DRM_REFLECT_Y))
 792                 offset += ((src->y2 >> 16) - 1) * fb->pitches[0];
 793         else
 794                 offset += (src->y1 >> 16) * fb->pitches[0];
 795         vop_plane_state->yrgb_mst = rk_obj->dma_addr + offset + fb->offsets[0];
 796
 797         ymirror = !!(state->rotation & BIT(DRM_REFLECT_Y));
 798         xmirror = !!(state->rotation & BIT(DRM_REFLECT_X));
 799
 800         spin_lock(&vop->reg_lock);
 801
 802         VOP_WIN_SET(vop, win, xmirror, xmirror);
 803         VOP_WIN_SET(vop, win, ymirror, ymirror);
 804         VOP_WIN_SET(vop, win, format, vop_plane_state->format);
 805         VOP_WIN_SET(vop, win, yrgb_vir, fb->pitches[0] >> 2);
 806         VOP_WIN_SET(vop, win, yrgb_mst, vop_plane_state->yrgb_mst);
 807         if (is_yuv_support(fb->pixel_format)) {
 808                 int hsub = drm_format_horz_chroma_subsampling(fb->pixel_format);
 809                 int vsub = drm_format_vert_chroma_subsampling(fb->pixel_format);
 810                 int bpp = drm_format_plane_cpp(fb->pixel_format, 1);
 811
 812                 uv_obj = rockchip_fb_get_gem_obj(fb, 1);
 813                 rk_uv_obj = to_rockchip_obj(uv_obj);
 814
 815                 offset = (src->x1 >> 16) * bpp / hsub;
 816                 offset += (src->y1 >> 16) * fb->pitches[1] / vsub;
 817
 818                 dma_addr = rk_uv_obj->dma_addr + offset + fb->offsets[1];
 819                 VOP_WIN_SET(vop, win, uv_vir, fb->pitches[1] >> 2);
 820                 VOP_WIN_SET(vop, win, uv_mst, dma_addr);
 821         }
 822
 823         scl_vop_cal_scl_fac(vop, win, actual_w, actual_h,
 824                             drm_rect_width(dest), drm_rect_height(dest),
 825                             fb->pixel_format);
 826
 827         VOP_WIN_SET(vop, win, act_info, act_info);
 828         VOP_WIN_SET(vop, win, dsp_info, dsp_info);
 829         VOP_WIN_SET(vop, win, dsp_st, dsp_st);
 830
 831         rb_swap = has_rb_swapped(fb->pixel_format);
 832         VOP_WIN_SET(vop, win, rb_swap, rb_swap);
 833
 834         if (is_alpha_support(fb->pixel_format) &&
 835             (s->dsp_layer_sel & 0x3) != win->win_id) {
 836                 VOP_WIN_SET(vop, win, dst_alpha_ctl,
 837                             DST_FACTOR_M0(ALPHA_SRC_INVERSE));
 838                 val = SRC_ALPHA_EN(1) | SRC_COLOR_M0(ALPHA_SRC_PRE_MUL) |
 839                         SRC_ALPHA_M0(ALPHA_STRAIGHT) |
 840                         SRC_BLEND_M0(ALPHA_PER_PIX) |
 841                         SRC_ALPHA_CAL_M0(ALPHA_NO_SATURATION) |
 842                         SRC_FACTOR_M0(ALPHA_ONE);
 843                 VOP_WIN_SET(vop, win, src_alpha_ctl, val);
 844                 VOP_WIN_SET(vop, win, alpha_mode, 1);
 845                 VOP_WIN_SET(vop, win, alpha_en, 1);
 846         } else {
 847                 VOP_WIN_SET(vop, win, src_alpha_ctl, SRC_ALPHA_EN(0));
 848                 VOP_WIN_SET(vop, win, alpha_en, 0);
 849         }
 850
 851         VOP_WIN_SET(vop, win, enable, 1);
 852         spin_unlock(&vop->reg_lock);
 853 }
 854
 855 static const struct drm_plane_helper_funcs plane_helper_funcs = {
 856         .prepare_fb = vop_plane_prepare_fb,
 857         .cleanup_fb = vop_plane_cleanup_fb,
 858         .atomic_check = vop_plane_atomic_check,
 859         .atomic_update = vop_plane_atomic_update,
 860         .atomic_disable = vop_plane_atomic_disable,
 861 };
 862
 863 void vop_atomic_plane_reset(struct drm_plane *plane)
 864 {
 865         struct vop_win *win = to_vop_win(plane);
 866         struct vop_plane_state *vop_plane_state =
 867                                         to_vop_plane_state(plane->state);
 868
 869         if (plane->state && plane->state->fb)
 870                 drm_framebuffer_unreference(plane->state->fb);
 871
 872         kfree(vop_plane_state);
 873         vop_plane_state = kzalloc(sizeof(*vop_plane_state), GFP_KERNEL);
 874         if (!vop_plane_state)
 875                 return;
 876
 877         vop_plane_state->zpos = win->win_id;
 878         plane->state = &vop_plane_state->base;
 879         plane->state->plane = plane;
 880 }
 881
 882 struct drm_plane_state *
 883 vop_atomic_plane_duplicate_state(struct drm_plane *plane)
 884 {
 885         struct vop_plane_state *old_vop_plane_state;
 886         struct vop_plane_state *vop_plane_state;
 887
 888         if (WARN_ON(!plane->state))
 889                 return NULL;
 890
 891         old_vop_plane_state = to_vop_plane_state(plane->state);
 892         vop_plane_state = kmemdup(old_vop_plane_state,
 893                                   sizeof(*vop_plane_state), GFP_KERNEL);
 894         if (!vop_plane_state)
 895                 return NULL;
 896
 897         __drm_atomic_helper_plane_duplicate_state(plane,
 898                                                   &vop_plane_state->base);
 899
 900         return &vop_plane_state->base;
 901 }
 902
 903 static void vop_atomic_plane_destroy_state(struct drm_plane *plane,
 904                                            struct drm_plane_state *state)
 905 {
 906         struct vop_plane_state *vop_state = to_vop_plane_state(state);
 907
 908         __drm_atomic_helper_plane_destroy_state(plane, state);
 909
 910         kfree(vop_state);
 911 }
 912
 913 static int vop_atomic_plane_set_property(struct drm_plane *plane,
 914                                          struct drm_plane_state *state,
 915                                          struct drm_property *property,
 916                                          uint64_t val)
 917 {
 918         struct vop_win *win = to_vop_win(plane);
 919         struct vop_plane_state *plane_state = to_vop_plane_state(state);
 920
 921         if (property == win->vop->plane_zpos_prop) {
 922                 plane_state->zpos = val;
 923                 return 0;
 924         }
 925
 926         if (property == win->rotation_prop) {
 927                 state->rotation = val;
 928                 return 0;
 929         }
 930
 931         DRM_ERROR("failed to set vop plane property\n");
 932         return -EINVAL;
 933 }
 934
 935 static int vop_atomic_plane_get_property(struct drm_plane *plane,
 936                                          const struct drm_plane_state *state,
 937                                          struct drm_property *property,
 938                                          uint64_t *val)
 939 {
 940         struct vop_win *win = to_vop_win(plane);
 941         struct vop_plane_state *plane_state = to_vop_plane_state(state);
 942
 943         if (property == win->vop->plane_zpos_prop) {
 944                 *val = plane_state->zpos;
 945                 return 0;
 946         }
 947
 948         if (property == win->rotation_prop) {
 949                 *val = state->rotation;
 950                 return 0;
 951         }
 952
 953         DRM_ERROR("failed to get vop plane property\n");
 954         return -EINVAL;
 955 }
 956
 957 static const struct drm_plane_funcs vop_plane_funcs = {
 958         .update_plane   = drm_atomic_helper_update_plane,
 959         .disable_plane  = drm_atomic_helper_disable_plane,
 960         .destroy = vop_plane_destroy,
 961         .reset = vop_atomic_plane_reset,
 962         .atomic_duplicate_state = vop_atomic_plane_duplicate_state,
 963         .atomic_destroy_state = vop_atomic_plane_destroy_state,
 964         .atomic_set_property = vop_atomic_plane_set_property,
 965         .atomic_get_property = vop_atomic_plane_get_property,
 966 };
 967
 968 static int vop_crtc_enable_vblank(struct drm_crtc *crtc)
 969 {
 970         struct vop *vop = to_vop(crtc);
 971         unsigned long flags;
 972
 973         if (WARN_ON(!vop->is_enabled))
 974                 return -EPERM;
 975
 976         spin_lock_irqsave(&vop->irq_lock, flags);
 977
 978         VOP_INTR_SET_TYPE(vop, enable, FS_INTR, 1);
 979
 980         spin_unlock_irqrestore(&vop->irq_lock, flags);
 981
 982         return 0;
 983 }
 984
 985 static void vop_crtc_disable_vblank(struct drm_crtc *crtc)
 986 {
 987         struct vop *vop = to_vop(crtc);
 988         unsigned long flags;
 989
 990         if (WARN_ON(!vop->is_enabled))
 991                 return;
 992
 993         spin_lock_irqsave(&vop->irq_lock, flags);
 994
 995         VOP_INTR_SET_TYPE(vop, enable, FS_INTR, 0);
 996
 997         spin_unlock_irqrestore(&vop->irq_lock, flags);
 998 }
 999
1000 static void vop_crtc_wait_for_update(struct drm_crtc *crtc)
1001 {
1002         struct vop *vop = to_vop(crtc);
1003
1004         reinit_completion(&vop->wait_update_complete);
1005         WARN_ON(!wait_for_completion_timeout(&vop->wait_update_complete, 100));
1006 }
1007
1008 static void vop_crtc_cancel_pending_vblank(struct drm_crtc *crtc,
1009                                            struct drm_file *file_priv)
1010 {
1011         struct drm_device *drm = crtc->dev;
1012         struct vop *vop = to_vop(crtc);
1013         struct drm_pending_vblank_event *e;
1014         unsigned long flags;
1015
1016         spin_lock_irqsave(&drm->event_lock, flags);
1017         e = vop->event;
1018         if (e && e->base.file_priv == file_priv) {
1019                 vop->event = NULL;
1020
1021                 e->base.destroy(&e->base);
1022                 file_priv->event_space += sizeof(e->event);
1023         }
1024         spin_unlock_irqrestore(&drm->event_lock, flags);
1025 }
1026
1027 static const struct rockchip_crtc_funcs private_crtc_funcs = {
1028         .enable_vblank = vop_crtc_enable_vblank,
1029         .disable_vblank = vop_crtc_disable_vblank,
1030         .wait_for_update = vop_crtc_wait_for_update,
1031         .cancel_pending_vblank = vop_crtc_cancel_pending_vblank,
1032 };
1033
1034 static bool vop_crtc_mode_fixup(struct drm_crtc *crtc,
1035                                 const struct drm_display_mode *mode,
1036                                 struct drm_display_mode *adjusted_mode)
1037 {
1038         struct vop *vop = to_vop(crtc);
1039
1040         adjusted_mode->clock =
1041                 clk_round_rate(vop->dclk, mode->clock * 1000) / 1000;
1042
1043         return true;
1044 }
1045
1046 static void vop_crtc_enable(struct drm_crtc *crtc)
1047 {
1048         struct vop *vop = to_vop(crtc);
1049         const struct vop_data *vop_data = vop->data;
1050         struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc->state);
1051         struct drm_display_mode *adjusted_mode = &crtc->state->adjusted_mode;
1052         u16 hsync_len = adjusted_mode->hsync_end - adjusted_mode->hsync_start;
1053         u16 hdisplay = adjusted_mode->hdisplay;
1054         u16 htotal = adjusted_mode->htotal;
1055         u16 hact_st = adjusted_mode->htotal - adjusted_mode->hsync_start;
1056         u16 hact_end = hact_st + hdisplay;
1057         u16 vdisplay = adjusted_mode->vdisplay;
1058         u16 vtotal = adjusted_mode->vtotal;
1059         u16 vsync_len = adjusted_mode->vsync_end - adjusted_mode->vsync_start;
1060         u16 vact_st = adjusted_mode->vtotal - adjusted_mode->vsync_start;
1061         u16 vact_end = vact_st + vdisplay;
1062         uint32_t val;
1063
1064         vop_enable(crtc);
1065         /*
1066          * If dclk rate is zero, mean that scanout is stop,
1067          * we don't need wait any more.
1068          */
1069         if (clk_get_rate(vop->dclk)) {
1070                 /*
1071                  * Rk3288 vop timing register is immediately, when configure
1072                  * display timing on display time, may cause tearing.
1073                  *
1074                  * Vop standby will take effect at end of current frame,
1075                  * if dsp hold valid irq happen, it means standby complete.
1076                  *
1077                  * mode set:
1078                  *    standby and wait complete --> |----
1079                  *                                  | display time
1080                  *                                  |----
1081                  *                                  |---> dsp hold irq
1082                  *     configure display timing --> |
1083                  *         standby exit             |
1084                  *                                  | new frame start.
1085                  */
1086
1087                 reinit_completion(&vop->dsp_hold_completion);
1088                 vop_dsp_hold_valid_irq_enable(vop);
1089
1090                 spin_lock(&vop->reg_lock);
1091
1092                 VOP_CTRL_SET(vop, standby, 1);
1093
1094                 spin_unlock(&vop->reg_lock);
1095
1096                 wait_for_completion(&vop->dsp_hold_completion);
1097
1098                 vop_dsp_hold_valid_irq_disable(vop);
1099         }
1100
1101         val = 0x8;
1102         val |= (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) ? 0 : 1;
1103         val |= (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) ? 0 : (1 << 1);
1104         VOP_CTRL_SET(vop, pin_pol, val);
1105         switch (s->output_type) {
1106         case DRM_MODE_CONNECTOR_LVDS:
1107                 VOP_CTRL_SET(vop, rgb_en, 1);
1108                 VOP_CTRL_SET(vop, rgb_pin_pol, val);
1109                 break;
1110         case DRM_MODE_CONNECTOR_eDP:
1111                 VOP_CTRL_SET(vop, edp_en, 1);
1112                 VOP_CTRL_SET(vop, edp_pin_pol, val);
1113                 break;
1114         case DRM_MODE_CONNECTOR_HDMIA:
1115                 VOP_CTRL_SET(vop, hdmi_en, 1);
1116                 VOP_CTRL_SET(vop, hdmi_pin_pol, val);
1117                 break;
1118         case DRM_MODE_CONNECTOR_DSI:
1119                 VOP_CTRL_SET(vop, mipi_en, 1);
1120                 VOP_CTRL_SET(vop, mipi_pin_pol, val);
1121                 break;
1122         default:
1123                 DRM_ERROR("unsupport connector_type[%d]\n", s->output_type);
1124         }
1125
1126         if (s->output_mode == ROCKCHIP_OUT_MODE_AAAA &&
1127             !(vop_data->feature & VOP_FEATURE_OUTPUT_10BIT))
1128                 s->output_mode = ROCKCHIP_OUT_MODE_P888;
1129
1130         VOP_CTRL_SET(vop, out_mode, s->output_mode);
1131
1132         VOP_CTRL_SET(vop, htotal_pw, (htotal << 16) | hsync_len);
1133         val = hact_st << 16;
1134         val |= hact_end;
1135         VOP_CTRL_SET(vop, hact_st_end, val);
1136         VOP_CTRL_SET(vop, hpost_st_end, val);
1137
1138         VOP_CTRL_SET(vop, vtotal_pw, (vtotal << 16) | vsync_len);
1139         val = vact_st << 16;
1140         val |= vact_end;
1141         VOP_CTRL_SET(vop, vact_st_end, val);
1142         VOP_CTRL_SET(vop, vpost_st_end, val);
1143
1144         clk_set_rate(vop->dclk, adjusted_mode->clock * 1000);
1145
1146         VOP_CTRL_SET(vop, standby, 0);
1147 }
1148
1149 static int vop_zpos_cmp(const void *a, const void *b)
1150 {
1151         struct vop_zpos *pa = (struct vop_zpos *)a;
1152         struct vop_zpos *pb = (struct vop_zpos *)b;
1153
1154         return pa->zpos - pb->zpos;
1155 }
1156
1157 static int vop_crtc_atomic_check(struct drm_crtc *crtc,
1158                                  struct drm_crtc_state *crtc_state)
1159 {
1160         struct drm_atomic_state *state = crtc_state->state;
1161         struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
1162         struct vop *vop = to_vop(crtc);
1163         const struct vop_data *vop_data = vop->data;
1164         struct drm_plane *plane;
1165         struct drm_plane_state *pstate;
1166         struct vop_plane_state *plane_state;
1167         struct vop_zpos *pzpos;
1168         int dsp_layer_sel = 0;
1169         int i, j, cnt = 0, ret = 0;
1170
1171         pzpos = kmalloc_array(vop_data->win_size, sizeof(*pzpos), GFP_KERNEL);
1172         if (!pzpos)
1173                 return -ENOMEM;
1174
1175         for (i = 0; i < vop_data->win_size; i++) {
1176                 const struct vop_win_data *win_data = &vop_data->win[i];
1177                 struct vop_win *win;
1178
1179                 if (!win_data->phy)
1180                         continue;
1181
1182                 for (j = 0; j < vop->num_wins; j++) {
1183                         win = &vop->win[j];
1184
1185                         if (win->win_id == i && !win->area_id)
1186                                 break;
1187                 }
1188                 if (WARN_ON(j >= vop->num_wins)) {
1189                         ret = -EINVAL;
1190                         goto err_free_pzpos;
1191                 }
1192
1193                 plane = &win->base;
1194                 pstate = state->plane_states[drm_plane_index(plane)];
1195                 /*
1196                  * plane might not have changed, in which case take
1197                  * current state:
1198                  */
1199                 if (!pstate)
1200                         pstate = plane->state;
1201                 plane_state = to_vop_plane_state(pstate);
1202                 pzpos[cnt].zpos = plane_state->zpos;
1203                 pzpos[cnt++].win_id = win->win_id;
1204         }
1205
1206         sort(pzpos, cnt, sizeof(pzpos[0]), vop_zpos_cmp, NULL);
1207
1208         for (i = 0, cnt = 0; i < vop_data->win_size; i++) {
1209                 const struct vop_win_data *win_data = &vop_data->win[i];
1210                 int shift = i * 2;
1211
1212                 if (win_data->phy) {
1213                         struct vop_zpos *zpos = &pzpos[cnt++];
1214
1215                         dsp_layer_sel |= zpos->win_id << shift;
1216                 } else {
1217                         dsp_layer_sel |= i << shift;
1218                 }
1219         }
1220
1221         s->dsp_layer_sel = dsp_layer_sel;
1222
1223 err_free_pzpos:
1224         kfree(pzpos);
1225         return ret;
1226 }
1227
1228 static void vop_crtc_atomic_flush(struct drm_crtc *crtc,
1229                                   struct drm_crtc_state *old_crtc_state)
1230 {
1231         struct rockchip_crtc_state *s =
1232                         to_rockchip_crtc_state(crtc->state);
1233         struct vop *vop = to_vop(crtc);
1234
1235         if (WARN_ON(!vop->is_enabled))
1236                 return;
1237
1238         spin_lock(&vop->reg_lock);
1239
1240         VOP_CTRL_SET(vop, dsp_layer_sel, s->dsp_layer_sel);
1241         vop_cfg_done(vop);
1242
1243         spin_unlock(&vop->reg_lock);
1244 }
1245
1246 static void vop_crtc_atomic_begin(struct drm_crtc *crtc,
1247                                   struct drm_crtc_state *old_crtc_state)
1248 {
1249         struct vop *vop = to_vop(crtc);
1250
1251         if (crtc->state->event) {
1252                 WARN_ON(drm_crtc_vblank_get(crtc) != 0);
1253
1254                 vop->event = crtc->state->event;
1255                 crtc->state->event = NULL;
1256         }
1257 }
1258
1259 static const struct drm_crtc_helper_funcs vop_crtc_helper_funcs = {
1260         .enable = vop_crtc_enable,
1261         .disable = vop_crtc_disable,
1262         .mode_fixup = vop_crtc_mode_fixup,
1263         .atomic_check = vop_crtc_atomic_check,
1264         .atomic_flush = vop_crtc_atomic_flush,
1265         .atomic_begin = vop_crtc_atomic_begin,
1266 };
1267
1268 static void vop_crtc_destroy(struct drm_crtc *crtc)
1269 {
1270         drm_crtc_cleanup(crtc);
1271 }
1272
1273 static struct drm_crtc_state *vop_crtc_duplicate_state(struct drm_crtc *crtc)
1274 {
1275         struct rockchip_crtc_state *rockchip_state;
1276
1277         rockchip_state = kzalloc(sizeof(*rockchip_state), GFP_KERNEL);
1278         if (!rockchip_state)
1279                 return NULL;
1280
1281         __drm_atomic_helper_crtc_duplicate_state(crtc, &rockchip_state->base);
1282         return &rockchip_state->base;
1283 }
1284
1285 static void vop_crtc_destroy_state(struct drm_crtc *crtc,
1286                                    struct drm_crtc_state *state)
1287 {
1288         struct rockchip_crtc_state *s = to_rockchip_crtc_state(state);
1289
1290         __drm_atomic_helper_crtc_destroy_state(crtc, &s->base);
1291         kfree(s);
1292 }
1293
1294 static const struct drm_crtc_funcs vop_crtc_funcs = {
1295         .set_config = drm_atomic_helper_set_config,
1296         .page_flip = drm_atomic_helper_page_flip,
1297         .destroy = vop_crtc_destroy,
1298         .reset = drm_atomic_helper_crtc_reset,
1299         .atomic_duplicate_state = vop_crtc_duplicate_state,
1300         .atomic_destroy_state = vop_crtc_destroy_state,
1301 };
1302
1303 static bool vop_win_pending_is_complete(struct vop_win *vop_win)
1304 {
1305         struct drm_plane *plane = &vop_win->base;
1306         struct vop_plane_state *state = to_vop_plane_state(plane->state);
1307         dma_addr_t yrgb_mst;
1308
1309         if (!state->enable)
1310                 return VOP_WIN_GET(vop_win->vop, vop_win, enable) == 0;
1311
1312         yrgb_mst = VOP_WIN_GET_YRGBADDR(vop_win->vop, vop_win);
1313
1314         return yrgb_mst == state->yrgb_mst;
1315 }
1316
1317 static void vop_handle_vblank(struct vop *vop)
1318 {
1319         struct drm_device *drm = vop->drm_dev;
1320         struct drm_crtc *crtc = &vop->crtc;
1321         unsigned long flags;
1322         int i;
1323
1324         for (i = 0; i < vop->num_wins; i++) {
1325                 if (!vop_win_pending_is_complete(&vop->win[i]))
1326                         return;
1327         }
1328
1329         if (vop->event) {
1330                 spin_lock_irqsave(&drm->event_lock, flags);
1331
1332                 drm_crtc_send_vblank_event(crtc, vop->event);
1333                 drm_crtc_vblank_put(crtc);
1334                 vop->event = NULL;
1335
1336                 spin_unlock_irqrestore(&drm->event_lock, flags);
1337         }
1338         if (!completion_done(&vop->wait_update_complete))
1339                 complete(&vop->wait_update_complete);
1340 }
1341
1342 static irqreturn_t vop_isr(int irq, void *data)
1343 {
1344         struct vop *vop = data;
1345         struct drm_crtc *crtc = &vop->crtc;
1346         uint32_t active_irqs;
1347         unsigned long flags;
1348         int ret = IRQ_NONE;
1349
1350         /*
1351          * interrupt register has interrupt status, enable and clear bits, we
1352          * must hold irq_lock to avoid a race with enable/disable_vblank().
1353         */
1354         spin_lock_irqsave(&vop->irq_lock, flags);
1355
1356         active_irqs = VOP_INTR_GET_TYPE(vop, status, INTR_MASK);
1357         /* Clear all active interrupt sources */
1358         if (active_irqs)
1359                 VOP_INTR_SET_TYPE(vop, clear, active_irqs, 1);
1360
1361         spin_unlock_irqrestore(&vop->irq_lock, flags);
1362
1363         /* This is expected for vop iommu irqs, since the irq is shared */
1364         if (!active_irqs)
1365                 return IRQ_NONE;
1366
1367         if (active_irqs & DSP_HOLD_VALID_INTR) {
1368                 complete(&vop->dsp_hold_completion);
1369                 active_irqs &= ~DSP_HOLD_VALID_INTR;
1370                 ret = IRQ_HANDLED;
1371         }
1372
1373         if (active_irqs & FS_INTR) {
1374                 drm_crtc_handle_vblank(crtc);
1375                 vop_handle_vblank(vop);
1376                 active_irqs &= ~FS_INTR;
1377                 ret = IRQ_HANDLED;
1378         }
1379
1380         /* Unhandled irqs are spurious. */
1381         if (active_irqs)
1382                 DRM_ERROR("Unknown VOP IRQs: %#02x\n", active_irqs);
1383
1384         return ret;
1385 }
1386
1387 static int vop_plane_init(struct vop *vop, struct vop_win *win,
1388                           unsigned long possible_crtcs)
1389 {
1390         struct drm_plane *share = NULL;
1391         unsigned int rotations = 0;
1392         struct drm_property *prop;
1393         int ret;
1394
1395         if (win->parent)
1396                 share = &win->parent->base;
1397
1398         ret = drm_share_plane_init(vop->drm_dev, &win->base, share,
1399                                    possible_crtcs, &vop_plane_funcs,
1400                                    win->data_formats, win->nformats, win->type);
1401         if (ret) {
1402                 DRM_ERROR("failed to initialize plane\n");
1403                 return ret;
1404         }
1405         drm_plane_helper_add(&win->base, &plane_helper_funcs);
1406         drm_object_attach_property(&win->base.base,
1407                                    vop->plane_zpos_prop, win->win_id);
1408
1409         if (VOP_WIN_SUPPORT(vop, win, xmirror))
1410                 rotations |= BIT(DRM_REFLECT_X);
1411
1412         if (VOP_WIN_SUPPORT(vop, win, ymirror))
1413                 rotations |= BIT(DRM_REFLECT_Y);
1414
1415         if (rotations) {
1416                 rotations |= BIT(DRM_ROTATE_0);
1417                 prop = drm_mode_create_rotation_property(vop->drm_dev,
1418                                                          rotations);
1419                 if (!prop) {
1420                         DRM_ERROR("failed to create zpos property\n");
1421                         return -EINVAL;
1422                 }
1423                 drm_object_attach_property(&win->base.base, prop,
1424                                            BIT(DRM_ROTATE_0));
1425                 win->rotation_prop = prop;
1426         }
1427
1428         return 0;
1429 }
1430
1431 static int vop_create_crtc(struct vop *vop)
1432 {
1433         struct device *dev = vop->dev;
1434         struct drm_device *drm_dev = vop->drm_dev;
1435         struct drm_plane *primary = NULL, *cursor = NULL, *plane, *tmp;
1436         struct drm_crtc *crtc = &vop->crtc;
1437         struct device_node *port;
1438         int ret;
1439         int i;
1440
1441         /*
1442          * Create drm_plane for primary and cursor planes first, since we need
1443          * to pass them to drm_crtc_init_with_planes, which sets the
1444          * "possible_crtcs" to the newly initialized crtc.
1445          */
1446         for (i = 0; i < vop->num_wins; i++) {
1447                 struct vop_win *win = &vop->win[i];
1448
1449                 if (win->type != DRM_PLANE_TYPE_PRIMARY &&
1450                     win->type != DRM_PLANE_TYPE_CURSOR)
1451                         continue;
1452
1453                 ret = vop_plane_init(vop, win, 0);
1454                 if (ret)
1455                         goto err_cleanup_planes;
1456
1457                 plane = &win->base;
1458                 if (plane->type == DRM_PLANE_TYPE_PRIMARY)
1459                         primary = plane;
1460                 else if (plane->type == DRM_PLANE_TYPE_CURSOR)
1461                         cursor = plane;
1462
1463         }
1464
1465         ret = drm_crtc_init_with_planes(drm_dev, crtc, primary, cursor,
1466                                         &vop_crtc_funcs, NULL);
1467         if (ret)
1468                 goto err_cleanup_planes;
1469
1470         drm_crtc_helper_add(crtc, &vop_crtc_helper_funcs);
1471
1472         /*
1473          * Create drm_planes for overlay windows with possible_crtcs restricted
1474          * to the newly created crtc.
1475          */
1476         for (i = 0; i < vop->num_wins; i++) {
1477                 struct vop_win *win = &vop->win[i];
1478                 unsigned long possible_crtcs = 1 << drm_crtc_index(crtc);
1479
1480                 if (win->type != DRM_PLANE_TYPE_OVERLAY)
1481                         continue;
1482
1483                 ret = vop_plane_init(vop, win, possible_crtcs);
1484                 if (ret)
1485                         goto err_cleanup_crtc;
1486         }
1487
1488         port = of_get_child_by_name(dev->of_node, "port");
1489         if (!port) {
1490                 DRM_ERROR("no port node found in %s\n",
1491                           dev->of_node->full_name);
1492                 ret = -ENOENT;
1493                 goto err_cleanup_crtc;
1494         }
1495
1496         init_completion(&vop->dsp_hold_completion);
1497         init_completion(&vop->wait_update_complete);
1498         crtc->port = port;
1499         rockchip_register_crtc_funcs(crtc, &private_crtc_funcs);
1500
1501         return 0;
1502
1503 err_cleanup_crtc:
1504         drm_crtc_cleanup(crtc);
1505 err_cleanup_planes:
1506         list_for_each_entry_safe(plane, tmp, &drm_dev->mode_config.plane_list,
1507                                  head)
1508                 drm_plane_cleanup(plane);
1509         return ret;
1510 }
1511
1512 static void vop_destroy_crtc(struct vop *vop)
1513 {
1514         struct drm_crtc *crtc = &vop->crtc;
1515         struct drm_device *drm_dev = vop->drm_dev;
1516         struct drm_plane *plane, *tmp;
1517
1518         rockchip_unregister_crtc_funcs(crtc);
1519         of_node_put(crtc->port);
1520
1521         /*
1522          * We need to cleanup the planes now.  Why?
1523          *
1524          * The planes are "&vop->win[i].base".  That means the memory is
1525          * all part of the big "struct vop" chunk of memory.  That memory
1526          * was devm allocated and associated with this component.  We need to
1527          * free it ourselves before vop_unbind() finishes.
1528          */
1529         list_for_each_entry_safe(plane, tmp, &drm_dev->mode_config.plane_list,
1530                                  head)
1531                 vop_plane_destroy(plane);
1532
1533         /*
1534          * Destroy CRTC after vop_plane_destroy() since vop_disable_plane()
1535          * references the CRTC.
1536          */
1537         drm_crtc_cleanup(crtc);
1538 }
1539
1540 /*
1541  * Initialize the vop->win array elements.
1542  */
1543 static int vop_win_init(struct vop *vop)
1544 {
1545         const struct vop_data *vop_data = vop->data;
1546         unsigned int i, j;
1547         unsigned int num_wins = 0;
1548         struct drm_property *prop;
1549
1550         for (i = 0; i < vop_data->win_size; i++) {
1551                 struct vop_win *vop_win = &vop->win[num_wins];
1552                 const struct vop_win_data *win_data = &vop_data->win[i];
1553
1554                 if (!win_data->phy)
1555                         continue;
1556
1557                 vop_win->phy = win_data->phy;
1558                 vop_win->offset = win_data->base;
1559                 vop_win->type = win_data->type;
1560                 vop_win->data_formats = win_data->phy->data_formats;
1561                 vop_win->nformats = win_data->phy->nformats;
1562                 vop_win->vop = vop;
1563                 vop_win->win_id = i;
1564                 vop_win->area_id = 0;
1565                 num_wins++;
1566
1567                 for (j = 0; j < win_data->area_size; j++) {
1568                         struct vop_win *vop_area = &vop->win[num_wins];
1569                         const struct vop_win_phy *area = win_data->area[j];
1570
1571                         vop_area->parent = vop_win;
1572                         vop_area->offset = vop_win->offset;
1573                         vop_area->phy = area;
1574                         vop_area->type = DRM_PLANE_TYPE_OVERLAY;
1575                         vop_area->data_formats = vop_win->data_formats;
1576                         vop_area->nformats = vop_win->nformats;
1577                         vop_area->vop = vop;
1578                         vop_area->win_id = i;
1579                         vop_area->area_id = j;
1580                         num_wins++;
1581                 }
1582         }
1583
1584         vop->num_wins = num_wins;
1585
1586         prop = drm_property_create_range(vop->drm_dev, DRM_MODE_PROP_ATOMIC,
1587                                          "ZPOS", 0, vop->data->win_size);
1588         if (!prop) {
1589                 DRM_ERROR("failed to create zpos property\n");
1590                 return -EINVAL;
1591         }
1592         vop->plane_zpos_prop = prop;
1593
1594         return 0;
1595 }
1596
1597 static int vop_bind(struct device *dev, struct device *master, void *data)
1598 {
1599         struct platform_device *pdev = to_platform_device(dev);
1600         const struct vop_data *vop_data;
1601         struct drm_device *drm_dev = data;
1602         struct vop *vop;
1603         struct resource *res;
1604         size_t alloc_size;
1605         int ret, irq, i;
1606         int num_wins = 0;
1607
1608         vop_data = of_device_get_match_data(dev);
1609         if (!vop_data)
1610                 return -ENODEV;
1611
1612         for (i = 0; i < vop_data->win_size; i++) {
1613                 const struct vop_win_data *win_data = &vop_data->win[i];
1614
1615                 num_wins += win_data->area_size + 1;
1616         }
1617
1618         /* Allocate vop struct and its vop_win array */
1619         alloc_size = sizeof(*vop) + sizeof(*vop->win) * num_wins;
1620         vop = devm_kzalloc(dev, alloc_size, GFP_KERNEL);
1621         if (!vop)
1622                 return -ENOMEM;
1623
1624         vop->dev = dev;
1625         vop->data = vop_data;
1626         vop->drm_dev = drm_dev;
1627         vop->num_wins = num_wins;
1628         dev_set_drvdata(dev, vop);
1629
1630         ret = vop_win_init(vop);
1631         if (ret)
1632                 return ret;
1633
1634         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1635         vop->len = resource_size(res);
1636         vop->regs = devm_ioremap_resource(dev, res);
1637         if (IS_ERR(vop->regs))
1638                 return PTR_ERR(vop->regs);
1639
1640         vop->regsbak = devm_kzalloc(dev, vop->len, GFP_KERNEL);
1641         if (!vop->regsbak)
1642                 return -ENOMEM;
1643
1644         vop->hclk = devm_clk_get(vop->dev, "hclk_vop");
1645         if (IS_ERR(vop->hclk)) {
1646                 dev_err(vop->dev, "failed to get hclk source\n");
1647                 return PTR_ERR(vop->hclk);
1648         }
1649         vop->aclk = devm_clk_get(vop->dev, "aclk_vop");
1650         if (IS_ERR(vop->aclk)) {
1651                 dev_err(vop->dev, "failed to get aclk source\n");
1652                 return PTR_ERR(vop->aclk);
1653         }
1654         vop->dclk = devm_clk_get(vop->dev, "dclk_vop");
1655         if (IS_ERR(vop->dclk)) {
1656                 dev_err(vop->dev, "failed to get dclk source\n");
1657                 return PTR_ERR(vop->dclk);
1658         }
1659
1660         irq = platform_get_irq(pdev, 0);
1661         if (irq < 0) {
1662                 dev_err(dev, "cannot find irq for vop\n");
1663                 return irq;
1664         }
1665         vop->irq = (unsigned int)irq;
1666
1667         spin_lock_init(&vop->reg_lock);
1668         spin_lock_init(&vop->irq_lock);
1669
1670         mutex_init(&vop->vsync_mutex);
1671
1672         ret = devm_request_irq(dev, vop->irq, vop_isr,
1673                                IRQF_SHARED, dev_name(dev), vop);
1674         if (ret)
1675                 return ret;
1676
1677         /* IRQ is initially disabled; it gets enabled in power_on */
1678         disable_irq(vop->irq);
1679
1680         ret = vop_create_crtc(vop);
1681         if (ret)
1682                 return ret;
1683
1684         pm_runtime_enable(&pdev->dev);
1685         return 0;
1686 }
1687
1688 static void vop_unbind(struct device *dev, struct device *master, void *data)
1689 {
1690         struct vop *vop = dev_get_drvdata(dev);
1691
1692         pm_runtime_disable(dev);
1693         vop_destroy_crtc(vop);
1694 }
1695
1696 const struct component_ops vop_component_ops = {
1697         .bind = vop_bind,
1698         .unbind = vop_unbind,
1699 };
1700 EXPORT_SYMBOL_GPL(vop_component_ops);