On Mo, 2017-04-03 at 09:53 +0200, Daniel Vetter wrote: > On Mon, Apr 03, 2017 at 09:08:45AM +0200, Gerd Hoffmann wrote: > > Lookup format using virtio_gpu_translate_format() > > instead of hardcoding it. Fixes xorg display on > > bigendian guests (i.e. ppc64). > > > > Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx> > > ow ... :( > > With what kind of client have you tested this? fbdev? kms native? text console (fbcon) is fine, xorg (modesetting driver) fails. > Should we patch drm_fourcc.h and essentially state that _all_ drm_fourcc > are in native endian, don't dare mixing things up? Well, I don't think this needs clarification. I never assumed that fourcc is something else than native endian. It really was just an oversight in the virtio driver. One code path (which creates the framebuffer for fbdev emulation) did proper drm_fourcc -> virtio format mapping, including endianness handling. Patch 1/2 of this series factors this code out into a helper function so we can easily reuse it. The other code path (for creating dumb buffers) had the virtio format hardcoded which happened to work correctly in the little endian case. cheers, Gerd _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
