This small series fixes all known prime/dumb_buffer/buffer dirty tracking issues. Fixing of dumb-buffers turned out to be a lot more complex than I wanted it to be. There's not much that can be done there because the driver has to support old userspace (our Xorg driver expects those to not be gem buffers and special cases a bunch of functionality) and new userspace (which expects the handles to be gem buffers, at least to issue GEM_CLOSE). The third patch deals with it by making the objects returned from dumb-buffers both (raw buffers and surfaces referenced by the same handle), which always works and doesn't require any changes in userspace. This fixes the known KDE (KWin's) buffer rendering issues. v2: Fix compute_crc in the second patch, as spotted by Martin Zack Rusin (4): drm/vmwgfx: Fix a deadlock in dma buf fence polling drm/vmwgfx: Make sure the screen surface is ref counted drm/vmwgfx: Fix handling of dumb buffers drm/vmwgfx: Add basic support for external buffers drivers/gpu/drm/vmwgfx/vmw_surface_cache.h | 10 +- drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 127 +++--- drivers/gpu/drm/vmwgfx/vmwgfx_bo.h | 15 +- drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 40 +- drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 26 +- drivers/gpu/drm/vmwgfx/vmwgfx_gem.c | 62 ++- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 453 +++++++-------------- drivers/gpu/drm/vmwgfx/vmwgfx_kms.h | 17 +- drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 14 +- drivers/gpu/drm/vmwgfx/vmwgfx_prime.c | 32 +- drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 27 +- drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 33 +- drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 145 +++---- drivers/gpu/drm/vmwgfx/vmwgfx_surface.c | 277 ++++++++++++- drivers/gpu/drm/vmwgfx/vmwgfx_vkms.c | 40 +- 15 files changed, 788 insertions(+), 530 deletions(-) -- 2.40.1
