There has been some discussion about extending drm core to handle linear tile formats, in the series sent by me here [1] and how to handle formats that are intended to be used just with modifiers(particularly AFBC modifiers) on Brian series [2] and on IRC here [3] and [4].
Hence, this big-merged series: Patches 1-3: handle tiled formats both in core and in malidp driver, this is done by extending drm_format_info with three new fields char_per_block, block_w, block_h and consistently handle in the generic code paths, both linear tiled formats and normal formats. What's different from [1] is the interpretation of pitch for tile formats which has been kept to be the same as for the other formats: pitch = average_chars_per_pixel * width. Patches 4-6: Introduce the YUV AFBC formats, the only thing noteworthy here is that cpp/char_per_block are set to 0 for formats where it's mandatory to be used together with a non-linear modifier and then that is used to bypass pitch check in framebuffer_check for formats that have cpp/char_per_block set to 0. [1] https://lists.freedesktop.org/archives/dri-devel/2018-September/188245.html [2] https://lists.freedesktop.org/archives/dri-devel/2018-September/189620.html [3] https://people.freedesktop.org/~cbrill/dri-log/?channel=dri-devel&highlight_names=&date=2018-09-13&show_html=true [4] https://people.freedesktop.org/~cbrill/dri-log/?channel=dri-devel&highlight_names=&date=2018-09-14&show_html=true Alexandru Gheorghe (4): drm/fourcc: Add char_per_block, block_w and block_h in drm_format_info drm/fourcc: Add fourcc for Mali linear tiled formats drm: mali-dp: Enable Mali-DP tiled buffer formats drm: Extend framebuffer_check to handle formats with cpp/char_per_block 0 Brian Starkey (2): drm/fourcc: Add AFBC yuv fourccs for Mali drm/afbc: Add AFBC modifier usage documentation Documentation/gpu/afbc.rst | 233 +++++++++++++++++++ Documentation/gpu/drivers.rst | 1 + MAINTAINERS | 1 + drivers/gpu/drm/arm/malidp_hw.c | 14 +- drivers/gpu/drm/arm/malidp_planes.c | 23 +- drivers/gpu/drm/drm_fb_cma_helper.c | 21 +- drivers/gpu/drm/drm_fb_helper.c | 6 + drivers/gpu/drm/drm_fourcc.c | 65 ++++++ drivers/gpu/drm/drm_framebuffer.c | 13 +- drivers/gpu/drm/drm_gem_framebuffer_helper.c | 4 +- include/drm/drm_fourcc.h | 29 ++- include/uapi/drm/drm_fourcc.h | 31 +++ 12 files changed, 428 insertions(+), 13 deletions(-) create mode 100644 Documentation/gpu/afbc.rst -- 2.18.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
