Turned out to be a bit more difficuilt than just adding the "asm/io.h" header files. Not all architectures actually have a __io_virt() macro, so cirrus can't depend on that. The drm format helpers have to call memcpy_toio instead. So this little series add support for that.
Gerd Hoffmann (4): drm: add generic convert_lines() function for format conversions. drm: use convert_lines() in xrgb8888_to_rgb565 helpers. drm: use convert_lines() in xrgb8888_to_rgb565 helpers. drm: add convert_lines_toio() variant, fix cirrus builds on powerpc. include/drm/drm_format_helper.h | 9 +- drivers/gpu/drm/cirrus/cirrus.c | 6 +- drivers/gpu/drm/drm_format_helper.c | 329 +++++++++++++++++----------- 3 files changed, 215 insertions(+), 129 deletions(-) -- 2.18.1 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
