1 /* 2 * (C) COPYRIGHT 2016 ARM Limited. All rights reserved. 3 * Author: Liviu Dudau <Liviu.Dudau@arm.com> 4 * 5 * This program is free software and is provided to you under the terms of the 6 * GNU General Public License version 2 as published by the Free Software 7 * Foundation, and any use by you of this program is subject to the terms 8 * of such GNU licence. 9 * 10 * ARM Mali DP plane manipulation routines. 11 */ 12 13 #include <linux/iommu.h> 14 15 #include <drm/drmP.h> 16 #include <drm/drm_atomic.h> 17 #include <drm/drm_atomic_helper.h> 18 #include <drm/drm_fb_cma_helper.h> 19 #include <drm/drm_gem_cma_helper.h> 20 #include <drm/drm_gem_framebuffer_helper.h> 21 #include <drm/drm_plane_helper.h> 22 #include <drm/drm_print.h> 23 24 #include "malidp_hw.h" 25 #include "malidp_drv.h" 26 27 /* Layer specific register offsets */ 28 #define MALIDP_LAYER_FORMAT 0x000 29 #define LAYER_FORMAT_MASK 0x3f 30 #define MALIDP_LAYER_CONTROL 0x004 31 #define LAYER_ENABLE (1 << 0) 32 #define LAYER_FLOWCFG_MASK 7 33 #define LAYER_FLOWCFG(x) (((x) & LAYER_FLOWCFG_MASK) << 1) 34 #define LAYER_FLOWCFG_SCALE_SE 3 35 #define LAYER_ROT_OFFSET 8 36 #define LAYER_H_FLIP (1 << 10) 37 #define LAYER_V_FLIP (1 << 11) 38 #define LAYER_ROT_MASK (0xf << 8) 39 #define LAYER_COMP_MASK (0x3 << 12) 40 #define LAYER_COMP_PIXEL (0x3 << 12) 41 #define LAYER_COMP_PLANE (0x2 << 12) 42 #define LAYER_PMUL_ENABLE (0x1 << 14) 43 #define LAYER_ALPHA_OFFSET (16) 44 #define LAYER_ALPHA_MASK (0xff) 45 #define LAYER_ALPHA(x) (((x) & LAYER_ALPHA_MASK) << LAYER_ALPHA_OFFSET) 46 #define MALIDP_LAYER_COMPOSE 0x008 47 #define MALIDP_LAYER_SIZE 0x00c 48 #define LAYER_H_VAL(x) (((x) & 0x1fff) << 0) 49 #define LAYER_V_VAL(x) (((x) & 0x1fff) << 16) 50 #define MALIDP_LAYER_COMP_SIZE 0x010 51 #define MALIDP_LAYER_OFFSET 0x014 52 #define MALIDP550_LS_ENABLE 0x01c 53 #define MALIDP550_LS_R1_IN_SIZE 0x020 54 55 /* 56 * This 4-entry look-up-table is used to determine the full 8-bit alpha value 57 * for formats with 1- or 2-bit alpha channels. 58 * We set it to give 100%/0% opacity for 1-bit formats and 100%/66%/33%/0% 59 * opacity for 2-bit formats. 60 */ 61 #define MALIDP_ALPHA_LUT 0xffaa5500 62 63 /* page sizes the MMU prefetcher can support */ 64 #define MALIDP_MMU_PREFETCH_PARTIAL_PGSIZES (SZ_4K | SZ_64K) 65 #define MALIDP_MMU_PREFETCH_FULL_PGSIZES (SZ_1M | SZ_2M) 66 67 /* readahead for partial-frame prefetch */ 68 #define MALIDP_MMU_PREFETCH_READAHEAD 8 69 70 static void malidp_de_plane_destroy(struct drm_plane *plane) 71 { 72 struct malidp_plane *mp = to_malidp_plane(plane); 73 74 drm_plane_cleanup(plane); 75 kfree(mp); 76 } 77 78 /* 79 * Replicate what the default ->reset hook does: free the state pointer and 80 * allocate a new empty object. We just need enough space to store 81 * a malidp_plane_state instead of a drm_plane_state. 82 */ 83 static void malidp_plane_reset(struct drm_plane *plane) 84 { 85 struct malidp_plane_state *state = to_malidp_plane_state(plane->state); 86 87 if (state) 88 __drm_atomic_helper_plane_destroy_state(&state->base); 89 kfree(state); 90 plane->state = NULL; 91 state = kzalloc(sizeof(*state), GFP_KERNEL); 92 if (state) 93 __drm_atomic_helper_plane_reset(plane, &state->base); 94 } 95 96 static struct 97 drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane) 98 { 99 struct malidp_plane_state *state, *m_state; 100 101 if (!plane->state) 102 return NULL; 103 104 state = kmalloc(sizeof(*state), GFP_KERNEL); 105 if (!state) 106 return NULL; 107 108 m_state = to_malidp_plane_state(plane->state); 109 __drm_atomic_helper_plane_duplicate_state(plane, &state->base); 110 state->rotmem_size = m_state->rotmem_size; 111 state->format = m_state->format; 112 state->n_planes = m_state->n_planes; 113 114 state->mmu_prefetch_mode = m_state->mmu_prefetch_mode; 115 state->mmu_prefetch_pgsize = m_state->mmu_prefetch_pgsize; 116 117 return &state->base; 118 } 119 120 static void malidp_destroy_plane_state(struct drm_plane *plane, 121 struct drm_plane_state *state) 122 { 123 struct malidp_plane_state *m_state = to_malidp_plane_state(state); 124 125 __drm_atomic_helper_plane_destroy_state(state); 126 kfree(m_state); 127 } 128 129 static const char * const prefetch_mode_names[] = { 130 [MALIDP_PREFETCH_MODE_NONE] = "MMU_PREFETCH_NONE", 131 [MALIDP_PREFETCH_MODE_PARTIAL] = "MMU_PREFETCH_PARTIAL", 132 [MALIDP_PREFETCH_MODE_FULL] = "MMU_PREFETCH_FULL", 133 }; 134 135 static void malidp_plane_atomic_print_state(struct drm_printer *p, 136 const struct drm_plane_state *state) 137 { 138 struct malidp_plane_state *ms = to_malidp_plane_state(state); 139 140 drm_printf(p, "\trotmem_size=%u\n", ms->rotmem_size); 141 drm_printf(p, "\tformat_id=%u\n", ms->format); 142 drm_printf(p, "\tn_planes=%u\n", ms->n_planes); 143 drm_printf(p, "\tmmu_prefetch_mode=%s\n", 144 prefetch_mode_names[ms->mmu_prefetch_mode]); 145 drm_printf(p, "\tmmu_prefetch_pgsize=%d\n", ms->mmu_prefetch_pgsize); 146 } 147 148 static const struct drm_plane_funcs malidp_de_plane_funcs = { 149 .update_plane = drm_atomic_helper_update_plane, 150 .disable_plane = drm_atomic_helper_disable_plane, 151 .destroy = malidp_de_plane_destroy, 152 .reset = malidp_plane_reset, 153 .atomic_duplicate_state = malidp_duplicate_plane_state, 154 .atomic_destroy_state = malidp_destroy_plane_state, 155 .atomic_print_state = malidp_plane_atomic_print_state, 156 }; 157 158 static int malidp_se_check_scaling(struct malidp_plane *mp, 159 struct drm_plane_state *state) 160 { 161 struct drm_crtc_state *crtc_state = 162 drm_atomic_get_existing_crtc_state(state->state, state->crtc); 163 struct malidp_crtc_state *mc; 164 u32 src_w, src_h; 165 int ret; 166 167 if (!crtc_state) 168 return -EINVAL; 169 170 mc = to_malidp_crtc_state(crtc_state); 171 172 ret = drm_atomic_helper_check_plane_state(state, crtc_state, 173 0, INT_MAX, true, true); 174 if (ret) 175 return ret; 176 177 if (state->rotation & MALIDP_ROTATED_MASK) { 178 src_w = state->src_h >> 16; 179 src_h = state->src_w >> 16; 180 } else { 181 src_w = state->src_w >> 16; 182 src_h = state->src_h >> 16; 183 } 184 185 if ((state->crtc_w == src_w) && (state->crtc_h == src_h)) { 186 /* Scaling not necessary for this plane. */ 187 mc->scaled_planes_mask &= ~(mp->layer->id); 188 return 0; 189 } 190 191 if (mp->layer->id & (DE_SMART | DE_GRAPHICS2)) 192 return -EINVAL; 193 194 mc->scaled_planes_mask |= mp->layer->id; 195 /* Defer scaling requirements calculation to the crtc check. */ 196 return 0; 197 } 198 199 static u32 malidp_get_pgsize_bitmap(struct malidp_plane *mp) 200 { 201 u32 pgsize_bitmap = 0; 202 203 if (iommu_present(&platform_bus_type)) { 204 struct iommu_domain *mmu_dom = 205 iommu_get_domain_for_dev(mp->base.dev->dev); 206 207 if (mmu_dom) 208 pgsize_bitmap = mmu_dom->pgsize_bitmap; 209 } 210 211 return pgsize_bitmap; 212 } 213 214 /* 215 * Check if the framebuffer is entirely made up of pages at least pgsize in 216 * size. Only a heuristic: assumes that each scatterlist entry has been aligned 217 * to the largest page size smaller than its length and that the MMU maps to 218 * the largest page size possible. 219 */ 220 static bool malidp_check_pages_threshold(struct malidp_plane_state *ms, 221 u32 pgsize) 222 { 223 int i; 224 225 for (i = 0; i < ms->n_planes; i++) { 226 struct drm_gem_object *obj; 227 struct drm_gem_cma_object *cma_obj; 228 struct sg_table *sgt; 229 struct scatterlist *sgl; 230 231 obj = drm_gem_fb_get_obj(ms->base.fb, i); 232 cma_obj = to_drm_gem_cma_obj(obj); 233 234 if (cma_obj->sgt) 235 sgt = cma_obj->sgt; 236 else 237 sgt = obj->dev->driver->gem_prime_get_sg_table(obj); 238 239 if (!sgt) 240 return false; 241 242 sgl = sgt->sgl; 243 244 while (sgl) { 245 if (sgl->length < pgsize) { 246 if (!cma_obj->sgt) 247 kfree(sgt); 248 return false; 249 } 250 251 sgl = sg_next(sgl); 252 } 253 if (!cma_obj->sgt) 254 kfree(sgt); 255 } 256 257 return true; 258 } 259 260 /* 261 * Check if it is possible to enable partial-frame MMU prefetch given the 262 * current format, AFBC state and rotation. 263 */ 264 static bool malidp_partial_prefetch_supported(u32 format, u64 modifier, 265 unsigned int rotation) 266 { 267 bool afbc, sparse; 268 269 /* rotation and horizontal flip not supported for partial prefetch */ 270 if (rotation & (DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_180 | 271 DRM_MODE_ROTATE_270 | DRM_MODE_REFLECT_X)) 272 return false; 273 274 afbc = modifier & DRM_FORMAT_MOD_ARM_AFBC(0); 275 sparse = modifier & AFBC_FORMAT_MOD_SPARSE; 276 277 switch (format) { 278 case DRM_FORMAT_ARGB2101010: 279 case DRM_FORMAT_RGBA1010102: 280 case DRM_FORMAT_BGRA1010102: 281 case DRM_FORMAT_ARGB8888: 282 case DRM_FORMAT_RGBA8888: 283 case DRM_FORMAT_BGRA8888: 284 case DRM_FORMAT_XRGB8888: 285 case DRM_FORMAT_XBGR8888: 286 case DRM_FORMAT_RGBX8888: 287 case DRM_FORMAT_BGRX8888: 288 case DRM_FORMAT_RGB888: 289 case DRM_FORMAT_RGBA5551: 290 case DRM_FORMAT_RGB565: 291 /* always supported */ 292 return true; 293 294 case DRM_FORMAT_ABGR2101010: 295 case DRM_FORMAT_ABGR8888: 296 case DRM_FORMAT_ABGR1555: 297 case DRM_FORMAT_BGR565: 298 /* supported, but if AFBC then must be sparse mode */ 299 return (!afbc) || (afbc && sparse); 300 301 case DRM_FORMAT_BGR888: 302 /* supported, but not for AFBC */ 303 return !afbc; 304 305 case DRM_FORMAT_YUYV: 306 case DRM_FORMAT_UYVY: 307 case DRM_FORMAT_NV12: 308 case DRM_FORMAT_YUV420: 309 /* not supported */ 310 return false; 311 312 default: 313 return false; 314 } 315 } 316 317 /* 318 * Select the preferred MMU prefetch mode. Full-frame prefetch is preferred as 319 * long as the framebuffer is all large pages. Otherwise partial-frame prefetch 320 * is selected as long as it is supported for the current format. The selected 321 * page size for prefetch is returned in pgsize_bitmap. 322 */ 323 static enum mmu_prefetch_mode malidp_mmu_prefetch_select_mode 324 (struct malidp_plane_state *ms, u32 *pgsize_bitmap) 325 { 326 u32 pgsizes; 327 328 /* get the full-frame prefetch page size(s) supported by the MMU */ 329 pgsizes = *pgsize_bitmap & MALIDP_MMU_PREFETCH_FULL_PGSIZES; 330 331 while (pgsizes) { 332 u32 largest_pgsize = 1 << __fls(pgsizes); 333 334 if (malidp_check_pages_threshold(ms, largest_pgsize)) { 335 *pgsize_bitmap = largest_pgsize; 336 return MALIDP_PREFETCH_MODE_FULL; 337 } 338 339 pgsizes -= largest_pgsize; 340 } 341 342 /* get the partial-frame prefetch page size(s) supported by the MMU */ 343 pgsizes = *pgsize_bitmap & MALIDP_MMU_PREFETCH_PARTIAL_PGSIZES; 344 345 if (malidp_partial_prefetch_supported(ms->base.fb->format->format, 346 ms->base.fb->modifier, 347 ms->base.rotation)) { 348 /* partial prefetch using the smallest page size */ 349 *pgsize_bitmap = 1 << __ffs(pgsizes); 350 return MALIDP_PREFETCH_MODE_PARTIAL; 351 } 352 *pgsize_bitmap = 0; 353 return MALIDP_PREFETCH_MODE_NONE; 354 } 355 356 static u32 malidp_calc_mmu_control_value(enum mmu_prefetch_mode mode, 357 u8 readahead, u8 n_planes, u32 pgsize) 358 { 359 u32 mmu_ctrl = 0; 360 361 if (mode != MALIDP_PREFETCH_MODE_NONE) { 362 mmu_ctrl |= MALIDP_MMU_CTRL_EN; 363 364 if (mode == MALIDP_PREFETCH_MODE_PARTIAL) { 365 mmu_ctrl |= MALIDP_MMU_CTRL_MODE; 366 mmu_ctrl |= MALIDP_MMU_CTRL_PP_NUM_REQ(readahead); 367 } 368 369 if (pgsize == SZ_64K || pgsize == SZ_2M) { 370 int i; 371 372 for (i = 0; i < n_planes; i++) 373 mmu_ctrl |= MALIDP_MMU_CTRL_PX_PS(i); 374 } 375 } 376 377 return mmu_ctrl; 378 } 379 380 static void malidp_de_prefetch_settings(struct malidp_plane *mp, 381 struct malidp_plane_state *ms) 382 { 383 if (!mp->layer->mmu_ctrl_offset) 384 return; 385 386 /* get the page sizes supported by the MMU */ 387 ms->mmu_prefetch_pgsize = malidp_get_pgsize_bitmap(mp); 388 ms->mmu_prefetch_mode = 389 malidp_mmu_prefetch_select_mode(ms, &ms->mmu_prefetch_pgsize); 390 } 391 392 static int malidp_de_plane_check(struct drm_plane *plane, 393 struct drm_plane_state *state) 394 { 395 struct malidp_plane *mp = to_malidp_plane(plane); 396 struct malidp_plane_state *ms = to_malidp_plane_state(state); 397 bool rotated = state->rotation & MALIDP_ROTATED_MASK; 398 struct drm_framebuffer *fb; 399 u16 pixel_alpha = state->pixel_blend_mode; 400 int i, ret; 401 402 if (!state->crtc || !state->fb) 403 return 0; 404 405 fb = state->fb; 406 407 ms->format = malidp_hw_get_format_id(&mp->hwdev->hw->map, 408 mp->layer->id, 409 fb->format->format); 410 if (ms->format == MALIDP_INVALID_FORMAT_ID) 411 return -EINVAL; 412 413 ms->n_planes = fb->format->num_planes; 414 for (i = 0; i < ms->n_planes; i++) { 415 u8 alignment = malidp_hw_get_pitch_align(mp->hwdev, rotated); 416 if (fb->pitches[i] & (alignment - 1)) { 417 DRM_DEBUG_KMS("Invalid pitch %u for plane %d\n", 418 fb->pitches[i], i); 419 return -EINVAL; 420 } 421 } 422 423 if ((state->crtc_w > mp->hwdev->max_line_size) || 424 (state->crtc_h > mp->hwdev->max_line_size) || 425 (state->crtc_w < mp->hwdev->min_line_size) || 426 (state->crtc_h < mp->hwdev->min_line_size)) 427 return -EINVAL; 428 429 /* 430 * DP550/650 video layers can accept 3 plane formats only if 431 * fb->pitches[1] == fb->pitches[2] since they don't have a 432 * third plane stride register. 433 */ 434 if (ms->n_planes == 3 && 435 !(mp->hwdev->hw->features & MALIDP_DEVICE_LV_HAS_3_STRIDES) && 436 (state->fb->pitches[1] != state->fb->pitches[2])) 437 return -EINVAL; 438 439 ret = malidp_se_check_scaling(mp, state); 440 if (ret) 441 return ret; 442 443 /* validate the rotation constraints for each layer */ 444 if (state->rotation != DRM_MODE_ROTATE_0) { 445 if (mp->layer->rot == ROTATE_NONE) 446 return -EINVAL; 447 if ((mp->layer->rot == ROTATE_COMPRESSED) && !(fb->modifier)) 448 return -EINVAL; 449 /* 450 * packed RGB888 / BGR888 can't be rotated or flipped 451 * unless they are stored in a compressed way 452 */ 453 if ((fb->format->format == DRM_FORMAT_RGB888 || 454 fb->format->format == DRM_FORMAT_BGR888) && !(fb->modifier)) 455 return -EINVAL; 456 } 457 458 ms->rotmem_size = 0; 459 if (state->rotation & MALIDP_ROTATED_MASK) { 460 int val; 461 462 val = mp->hwdev->hw->rotmem_required(mp->hwdev, state->crtc_w, 463 state->crtc_h, 464 fb->format->format); 465 if (val < 0) 466 return val; 467 468 ms->rotmem_size = val; 469 } 470 471 /* HW can't support plane + pixel blending */ 472 if ((state->alpha != DRM_BLEND_ALPHA_OPAQUE) && 473 (pixel_alpha != DRM_MODE_BLEND_PIXEL_NONE) && 474 fb->format->has_alpha) 475 return -EINVAL; 476 477 malidp_de_prefetch_settings(mp, ms); 478 479 return 0; 480 } 481 482 static void malidp_de_set_plane_pitches(struct malidp_plane *mp, 483 int num_planes, unsigned int pitches[3]) 484 { 485 int i; 486 int num_strides = num_planes; 487 488 if (!mp->layer->stride_offset) 489 return; 490 491 if (num_planes == 3) 492 num_strides = (mp->hwdev->hw->features & 493 MALIDP_DEVICE_LV_HAS_3_STRIDES) ? 3 : 2; 494 495 for (i = 0; i < num_strides; ++i) 496 malidp_hw_write(mp->hwdev, pitches[i], 497 mp->layer->base + 498 mp->layer->stride_offset + i * 4); 499 } 500 501 static const s16 502 malidp_yuv2rgb_coeffs[][DRM_COLOR_RANGE_MAX][MALIDP_COLORADJ_NUM_COEFFS] = { 503 [DRM_COLOR_YCBCR_BT601][DRM_COLOR_YCBCR_LIMITED_RANGE] = { 504 1192, 0, 1634, 505 1192, -401, -832, 506 1192, 2066, 0, 507 64, 512, 512 508 }, 509 [DRM_COLOR_YCBCR_BT601][DRM_COLOR_YCBCR_FULL_RANGE] = { 510 1024, 0, 1436, 511 1024, -352, -731, 512 1024, 1815, 0, 513 0, 512, 512 514 }, 515 [DRM_COLOR_YCBCR_BT709][DRM_COLOR_YCBCR_LIMITED_RANGE] = { 516 1192, 0, 1836, 517 1192, -218, -546, 518 1192, 2163, 0, 519 64, 512, 512 520 }, 521 [DRM_COLOR_YCBCR_BT709][DRM_COLOR_YCBCR_FULL_RANGE] = { 522 1024, 0, 1613, 523 1024, -192, -479, 524 1024, 1900, 0, 525 0, 512, 512 526 }, 527 [DRM_COLOR_YCBCR_BT2020][DRM_COLOR_YCBCR_LIMITED_RANGE] = { 528 1024, 0, 1476, 529 1024, -165, -572, 530 1024, 1884, 0, 531 0, 512, 512 532 }, 533 [DRM_COLOR_YCBCR_BT2020][DRM_COLOR_YCBCR_FULL_RANGE] = { 534 1024, 0, 1510, 535 1024, -168, -585, 536 1024, 1927, 0, 537 0, 512, 512 538 } 539 }; 540 541 static void malidp_de_set_color_encoding(struct malidp_plane *plane, 542 enum drm_color_encoding enc, 543 enum drm_color_range range) 544 { 545 unsigned int i; 546 547 for (i = 0; i < MALIDP_COLORADJ_NUM_COEFFS; i++) { 548 /* coefficients are signed, two's complement values */ 549 malidp_hw_write(plane->hwdev, malidp_yuv2rgb_coeffs[enc][range][i], 550 plane->layer->base + plane->layer->yuv2rgb_offset + 551 i * 4); 552 } 553 } 554 555 static void malidp_de_set_mmu_control(struct malidp_plane *mp, 556 struct malidp_plane_state *ms) 557 { 558 u32 mmu_ctrl; 559 560 /* check hardware supports MMU prefetch */ 561 if (!mp->layer->mmu_ctrl_offset) 562 return; 563 564 mmu_ctrl = malidp_calc_mmu_control_value(ms->mmu_prefetch_mode, 565 MALIDP_MMU_PREFETCH_READAHEAD, 566 ms->n_planes, 567 ms->mmu_prefetch_pgsize); 568 569 malidp_hw_write(mp->hwdev, mmu_ctrl, 570 mp->layer->base + mp->layer->mmu_ctrl_offset); 571 } 572 573 static void malidp_de_plane_update(struct drm_plane *plane, 574 struct drm_plane_state *old_state) 575 { 576 struct malidp_plane *mp; 577 struct malidp_plane_state *ms = to_malidp_plane_state(plane->state); 578 struct drm_plane_state *state = plane->state; 579 u16 pixel_alpha = state->pixel_blend_mode; 580 u8 plane_alpha = state->alpha >> 8; 581 u32 src_w, src_h, dest_w, dest_h, val; 582 int i; 583 584 mp = to_malidp_plane(plane); 585 586 /* convert src values from Q16 fixed point to integer */ 587 src_w = state->src_w >> 16; 588 src_h = state->src_h >> 16; 589 dest_w = state->crtc_w; 590 dest_h = state->crtc_h; 591 592 val = malidp_hw_read(mp->hwdev, mp->layer->base); 593 val = (val & ~LAYER_FORMAT_MASK) | ms->format; 594 malidp_hw_write(mp->hwdev, val, mp->layer->base); 595 596 for (i = 0; i < ms->n_planes; i++) { 597 /* calculate the offset for the layer's plane registers */ 598 u16 ptr = mp->layer->ptr + (i << 4); 599 dma_addr_t fb_addr = drm_fb_cma_get_gem_addr(state->fb, 600 state, i); 601 602 malidp_hw_write(mp->hwdev, lower_32_bits(fb_addr), ptr); 603 malidp_hw_write(mp->hwdev, upper_32_bits(fb_addr), ptr + 4); 604 } 605 606 malidp_de_set_mmu_control(mp, ms); 607 608 malidp_de_set_plane_pitches(mp, ms->n_planes, 609 state->fb->pitches); 610 611 if ((plane->state->color_encoding != old_state->color_encoding) || 612 (plane->state->color_range != old_state->color_range)) 613 malidp_de_set_color_encoding(mp, plane->state->color_encoding, 614 plane->state->color_range); 615 616 malidp_hw_write(mp->hwdev, LAYER_H_VAL(src_w) | LAYER_V_VAL(src_h), 617 mp->layer->base + MALIDP_LAYER_SIZE); 618 619 malidp_hw_write(mp->hwdev, LAYER_H_VAL(dest_w) | LAYER_V_VAL(dest_h), 620 mp->layer->base + MALIDP_LAYER_COMP_SIZE); 621 622 malidp_hw_write(mp->hwdev, LAYER_H_VAL(state->crtc_x) | 623 LAYER_V_VAL(state->crtc_y), 624 mp->layer->base + MALIDP_LAYER_OFFSET); 625 626 if (mp->layer->id == DE_SMART) { 627 /* 628 * Enable the first rectangle in the SMART layer to be 629 * able to use it as a drm plane. 630 */ 631 malidp_hw_write(mp->hwdev, 1, 632 mp->layer->base + MALIDP550_LS_ENABLE); 633 malidp_hw_write(mp->hwdev, 634 LAYER_H_VAL(src_w) | LAYER_V_VAL(src_h), 635 mp->layer->base + MALIDP550_LS_R1_IN_SIZE); 636 } 637 638 /* first clear the rotation bits */ 639 val = malidp_hw_read(mp->hwdev, mp->layer->base + MALIDP_LAYER_CONTROL); 640 val &= ~LAYER_ROT_MASK; 641 642 /* setup the rotation and axis flip bits */ 643 if (state->rotation & DRM_MODE_ROTATE_MASK) 644 val |= ilog2(plane->state->rotation & DRM_MODE_ROTATE_MASK) << 645 LAYER_ROT_OFFSET; 646 if (state->rotation & DRM_MODE_REFLECT_X) 647 val |= LAYER_H_FLIP; 648 if (state->rotation & DRM_MODE_REFLECT_Y) 649 val |= LAYER_V_FLIP; 650 651 val &= ~(LAYER_COMP_MASK | LAYER_PMUL_ENABLE | LAYER_ALPHA(0xff)); 652 653 if (state->alpha != DRM_BLEND_ALPHA_OPAQUE) { 654 val |= LAYER_COMP_PLANE; 655 } else if (state->fb->format->has_alpha) { 656 /* We only care about blend mode if the format has alpha */ 657 switch (pixel_alpha) { 658 case DRM_MODE_BLEND_PREMULTI: 659 val |= LAYER_COMP_PIXEL | LAYER_PMUL_ENABLE; 660 break; 661 case DRM_MODE_BLEND_COVERAGE: 662 val |= LAYER_COMP_PIXEL; 663 break; 664 } 665 } 666 val |= LAYER_ALPHA(plane_alpha); 667 668 val &= ~LAYER_FLOWCFG(LAYER_FLOWCFG_MASK); 669 if (state->crtc) { 670 struct malidp_crtc_state *m = 671 to_malidp_crtc_state(state->crtc->state); 672 673 if (m->scaler_config.scale_enable && 674 m->scaler_config.plane_src_id == mp->layer->id) 675 val |= LAYER_FLOWCFG(LAYER_FLOWCFG_SCALE_SE); 676 } 677 678 /* set the 'enable layer' bit */ 679 val |= LAYER_ENABLE; 680 681 malidp_hw_write(mp->hwdev, val, 682 mp->layer->base + MALIDP_LAYER_CONTROL); 683 } 684 685 static void malidp_de_plane_disable(struct drm_plane *plane, 686 struct drm_plane_state *state) 687 { 688 struct malidp_plane *mp = to_malidp_plane(plane); 689 690 malidp_hw_clearbits(mp->hwdev, 691 LAYER_ENABLE | LAYER_FLOWCFG(LAYER_FLOWCFG_MASK), 692 mp->layer->base + MALIDP_LAYER_CONTROL); 693 } 694 695 static const struct drm_plane_helper_funcs malidp_de_plane_helper_funcs = { 696 .atomic_check = malidp_de_plane_check, 697 .atomic_update = malidp_de_plane_update, 698 .atomic_disable = malidp_de_plane_disable, 699 }; 700 701 int malidp_de_planes_init(struct drm_device *drm) 702 { 703 struct malidp_drm *malidp = drm->dev_private; 704 const struct malidp_hw_regmap *map = &malidp->dev->hw->map; 705 struct malidp_plane *plane = NULL; 706 enum drm_plane_type plane_type; 707 unsigned long crtcs = 1 << drm->mode_config.num_crtc; 708 unsigned long flags = DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_180 | 709 DRM_MODE_ROTATE_270 | DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y; 710 unsigned int blend_caps = BIT(DRM_MODE_BLEND_PIXEL_NONE) | 711 BIT(DRM_MODE_BLEND_PREMULTI) | 712 BIT(DRM_MODE_BLEND_COVERAGE); 713 u32 *formats; 714 int ret, i, j, n; 715 716 formats = kcalloc(map->n_pixel_formats, sizeof(*formats), GFP_KERNEL); 717 if (!formats) { 718 ret = -ENOMEM; 719 goto cleanup; 720 } 721 722 for (i = 0; i < map->n_layers; i++) { 723 u8 id = map->layers[i].id; 724 725 plane = kzalloc(sizeof(*plane), GFP_KERNEL); 726 if (!plane) { 727 ret = -ENOMEM; 728 goto cleanup; 729 } 730 731 /* build the list of DRM supported formats based on the map */ 732 for (n = 0, j = 0; j < map->n_pixel_formats; j++) { 733 if ((map->pixel_formats[j].layer & id) == id) 734 formats[n++] = map->pixel_formats[j].format; 735 } 736 737 plane_type = (i == 0) ? DRM_PLANE_TYPE_PRIMARY : 738 DRM_PLANE_TYPE_OVERLAY; 739 ret = drm_universal_plane_init(drm, &plane->base, crtcs, 740 &malidp_de_plane_funcs, formats, 741 n, NULL, plane_type, NULL); 742 if (ret < 0) 743 goto cleanup; 744 745 drm_plane_helper_add(&plane->base, 746 &malidp_de_plane_helper_funcs); 747 plane->hwdev = malidp->dev; 748 plane->layer = &map->layers[i]; 749 750 drm_plane_create_alpha_property(&plane->base); 751 drm_plane_create_blend_mode_property(&plane->base, blend_caps); 752 753 if (id == DE_SMART) { 754 /* Skip the features which the SMART layer doesn't have. */ 755 continue; 756 } 757 758 drm_plane_create_rotation_property(&plane->base, DRM_MODE_ROTATE_0, flags); 759 malidp_hw_write(malidp->dev, MALIDP_ALPHA_LUT, 760 plane->layer->base + MALIDP_LAYER_COMPOSE); 761 762 /* Attach the YUV->RGB property only to video layers */ 763 if (id & (DE_VIDEO1 | DE_VIDEO2)) { 764 /* default encoding for YUV->RGB is BT601 NARROW */ 765 enum drm_color_encoding enc = DRM_COLOR_YCBCR_BT601; 766 enum drm_color_range range = DRM_COLOR_YCBCR_LIMITED_RANGE; 767 768 ret = drm_plane_create_color_properties(&plane->base, 769 BIT(DRM_COLOR_YCBCR_BT601) | \ 770 BIT(DRM_COLOR_YCBCR_BT709) | \ 771 BIT(DRM_COLOR_YCBCR_BT2020), 772 BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) | \ 773 BIT(DRM_COLOR_YCBCR_FULL_RANGE), 774 enc, range); 775 if (!ret) 776 /* program the HW registers */ 777 malidp_de_set_color_encoding(plane, enc, range); 778 else 779 DRM_WARN("Failed to create video layer %d color properties\n", id); 780 } 781 } 782 783 kfree(formats); 784 785 return 0; 786 787 cleanup: 788 kfree(formats); 789 790 return ret; 791 } 792