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| author | Dave Airlie <airlied@redhat.com> | 2018-07-06 08:52:45 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2018-07-06 10:01:56 +1000 |
| commit | a1c3b49523aeb89a7f5ffa852c29db9c4e5ac8dd (patch) | |
| tree | 25119ff623073a26f79608c50cdd78a8e8b50078 /include/uapi | |
| parent | Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux int... (diff) | |
| parent | drm/savage: off by one in savage_bci_cmdbuf() (diff) | |
| download | linux-a1c3b49523aeb89a7f5ffa852c29db9c4e5ac8dd.tar.gz linux-a1c3b49523aeb89a7f5ffa852c29db9c4e5ac8dd.zip | |
Merge tag 'drm-misc-next-2018-07-04' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
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)
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180704234641.GA3981@juma
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/drm/drm_fourcc.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 64bf67abff7e..d5e52350a3aa 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -464,6 +464,27 @@ extern "C" { #define DRM_FORMAT_MOD_BROADCOM_SAND256 \ DRM_FORMAT_MOD_BROADCOM_SAND256_COL_HEIGHT(0) +/* Broadcom UIF format + * + * This is the common format for the current Broadcom multimedia + * blocks, including V3D 3.x and newer, newer video codecs, and + * displays. + * + * The image consists of utiles (64b blocks), UIF blocks (2x2 utiles), + * and macroblocks (4x4 UIF blocks). Those 4x4 UIF block groups are + * stored in columns, with padding between the columns to ensure that + * moving from one column to the next doesn't hit the same SDRAM page + * bank. + * + * To calculate the padding, it is assumed that each hardware block + * and the software driving it knows the platform's SDRAM page size, + * number of banks, and XOR address, and that it's identical between + * all blocks using the format. This tiling modifier will use XOR as + * necessary to reduce the padding. If a hardware block can't do XOR, + * the assumption is that a no-XOR tiling modifier will be created. + */ +#define DRM_FORMAT_MOD_BROADCOM_UIF fourcc_mod_code(BROADCOM, 6) + #if defined(__cplusplus) } #endif |
