drm-misc-next for 4.19: UAPI Changes: v3d: add fourcc modicfier for fourcc for the Broadcom UIF format (Eric Anholt) Cross-subsystem Changes: console/fbcon: Add support for deferred console takeover (Hans de Goede) Core Changes: dma-fence clean up, improvements and docs (Daniel Vetter) add mask function for crtc, plane, encoder and connector DRM objects(Ville Syrjälä) Driver Changes: pl111: add Nomadik LCDC variant (Linus Walleij)
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| @@ -464,6 +464,27 @@ extern "C" { · 463 unmodified lines | ||
| 464 | 464 | #define DRM_FORMAT_MOD_BROADCOM_SAND256 \ |
| 465 | 465 | DRM_FORMAT_MOD_BROADCOM_SAND256_COL_HEIGHT(0) |
| 466 | 466 | |
| 467 | +/* Broadcom UIF format | |
| 468 | + * | |
| 469 | + * This is the common format for the current Broadcom multimedia | |
| 470 | + * blocks, including V3D 3.x and newer, newer video codecs, and | |
| 471 | + * displays. | |
| 472 | + * | |
| 473 | + * The image consists of utiles (64b blocks), UIF blocks (2x2 utiles), | |
| 474 | + * and macroblocks (4x4 UIF blocks). Those 4x4 UIF block groups are | |
| 475 | + * stored in columns, with padding between the columns to ensure that | |
| 476 | + * moving from one column to the next doesn't hit the same SDRAM page | |
| 477 | + * bank. | |
| 478 | + * | |
| 479 | + * To calculate the padding, it is assumed that each hardware block | |
| 480 | + * and the software driving it knows the platform's SDRAM page size, | |
| 481 | + * number of banks, and XOR address, and that it's identical between | |
| 482 | + * all blocks using the format. This tiling modifier will use XOR as | |
| 483 | + * necessary to reduce the padding. If a hardware block can't do XOR, | |
| 484 | + * the assumption is that a no-XOR tiling modifier will be created. | |
| 485 | + */ | |
| 486 | +#define DRM_FORMAT_MOD_BROADCOM_UIF fourcc_mod_code(BROADCOM, 6) | |
| 487 | + | |
| 467 | 488 | #if defined(__cplusplus) |
| 468 | 489 | } |
| 469 | 490 | #endif |