Change since v1 [1]:
- Droped changes that add special handling of the tile formats
X0L0/X0L2 in the driver and extend drm_core, by adding tile_h and
tile_w in drm_format_info, suggested by Daniel Vetter here [2],
see patches 2 to 4.
- Use a differnt fourcc code for DRM_FORMAT_XVYU2101010, as
suggested by Brian Starkey here [3].
Mali DP supports a bunch of pixel formats that don't have a fourcc
code defined in drm_fourcc.h, so this patchset adds the definition for
those formats and enables them in mali-dp driver.
The following new formats will be added:
Packed YCbCr444
* DRM_FORMAT_XYUV8888
* DRM_FORMAT_XVYU2101010
Two plane 10 bits format.
* DRM_FORMAT_P010
Packed YCbCr420 2x2 tiled formats
* DRM_FORMAT_Y0L0
* DRM_FORMAT_X0L0
* DRM_FORMAT_Y0L2
* DRM_FORMAT_X0L2
The difference between X0L0/X0L2 vs Y0L0/Y0L2 is that the later group
have two alpha bits per pixel.
This group is a bit special because we are dealing with a tiled format
where the first 64 bits in memory represent the pixels for a 2x2 tile,
so it needs a bit of special handling when it comes to:
- pitch: needs to cover both rows that are in the same tile.
- min allocation size: since a pitch cover both rows the formulas
defined in drm_gem_fb_create don't work anymore.
- handling of src_x and src_y offset: same as above since we are
dealing with a tiled format drm_fb_cma_get_gem_obj doesn't return
the correct address offset.
[1] https://lists.freedesktop.org/archives/dri-devel/2018-July/184597.html
[2] https://lists.freedesktop.org/archives/dri-devel/2018-August/186465.html
[3] https://lists.freedesktop.org/archives/dri-devel/2018-August/186057.html
Alexandru Gheorghe (5):
drm/fourcc: Add new fourcc for malidp uncompressed formats
drm/fourcc: Add tile width and height to drm_format_info
drm/i915: Set tile sizes in drm_format_info
drm: Add support for handling linear tile formats
drm: mali-dp: Enable mali specific buffer formats
drivers/gpu/drm/arm/malidp_hw.c | 7 +-
drivers/gpu/drm/drm_atomic.c | 8 +
drivers/gpu/drm/drm_fb_cma_helper.c | 11 +-
drivers/gpu/drm/drm_fourcc.c | 397 +++++++++++++++----
drivers/gpu/drm/drm_framebuffer.c | 19 +-
drivers/gpu/drm/drm_gem_framebuffer_helper.c | 10 +-
drivers/gpu/drm/i915/intel_display.c | 12 +-
include/drm/drm_fourcc.h | 6 +
include/uapi/drm/drm_fourcc.h | 27 +-
9 files changed, 415 insertions(+), 82 deletions(-)
--
2.18.0
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