Change format-conversion helpers to use struct iosys_map for source and destination buffers. Update all users. Also prepare interface for multi-plane color formats. The format-conversion helpers mostly used to convert to I/O memory or system memory. To actual memory type depended on the usecase. We now have drivers upcomming that do the conversion entirely in system memory. It's a good opportunity to stream-line the interface of the conversion helpers to use struct iosys_map. Source and destination buffers can now be either in system or in I/O memory. Note that the implementation still only supports source buffers in system memory. This patchset also changes the interface to support multi-plane color formats, where the values for each component are stored in distinct memory locations. Converting from RGBRGBRGB to RRRGGGBBB would require a single source buffer with RGB values and 3 destination buffers for the R, G and B values. Conversion-helper interfaces now support this. v2: * add IOSYS_MAP_INIT_VADDR_IOMEM (Sam) * use drm_format_info_bpp() (Sam) * update documentation (Sam) * rename 'vmap' to 'src' (Sam) * many smaller cleanups and fixes (Sam, Jose) Thomas Zimmermann (14): iosys-map: Add IOSYS_MAP_INIT_VADDR_IOMEM() drm/format-helper: Provide drm_fb_blit() drm/format-helper: Merge drm_fb_memcpy() and drm_fb_memcpy_toio() drm/format-helper: Convert drm_fb_swab() to struct iosys_map drm/format-helper: Rework XRGB8888-to-RGBG332 conversion drm/format-helper: Rework XRGB8888-to-RGBG565 conversion drm/format-helper: Rework XRGB8888-to-RGB888 conversion drm/format-helper: Rework RGB565-to-XRGB8888 conversion drm/format-helper: Rework RGB888-to-XRGB8888 conversion drm/format-helper: Rework XRGB8888-to-XRGB2101010 conversion drm/format-helper: Rework XRGB8888-to-GRAY8 conversion drm/format-helper: Rework XRGB8888-to-MONO conversion drm/format-helper: Move destination-buffer handling into internal helper drm/format-helper: Rename parameter vmap to src drivers/gpu/drm/drm_format_helper.c | 509 ++++++++++-------- drivers/gpu/drm/drm_mipi_dbi.c | 9 +- drivers/gpu/drm/gud/gud_pipe.c | 20 +- drivers/gpu/drm/hyperv/hyperv_drm_modeset.c | 9 +- drivers/gpu/drm/mgag200/mgag200_mode.c | 9 +- drivers/gpu/drm/solomon/ssd130x.c | 7 +- .../gpu/drm/tests/drm_format_helper_test.c | 45 +- drivers/gpu/drm/tiny/cirrus.c | 19 +- drivers/gpu/drm/tiny/repaper.c | 6 +- drivers/gpu/drm/tiny/simpledrm.c | 8 +- drivers/gpu/drm/tiny/st7586.c | 5 +- include/drm/drm_format_helper.h | 56 +- include/linux/iosys-map.h | 15 +- 13 files changed, 416 insertions(+), 301 deletions(-) base-commit: 2bdae66c9988dd0f07633629c0a85383cfc05940 prerequisite-patch-id: c2b2f08f0eccc9f5df0c0da49fa1d36267deb11d prerequisite-patch-id: c67e5d886a47b7d0266d81100837557fda34cb24 prerequisite-patch-id: 3f204510fcbf9530d6540bd8e6128cce598988b6 -- 2.37.1