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 v3: Simplify the first change which fixes the deadlock in the dma-buf fence polling v4: Fix mouse cursor races due to buffer mapping not being reserved in the third patch v5: Use map.virtual to check whether an user buffer is mapped instead of map.bo. There's no change in functionality but we do use map.virtual to check whether a buffer has been mapped elsewhere so usage of it is more consistent. Spotted by Ian. 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 | 17 +- drivers/gpu/drm/vmwgfx/vmwgfx_gem.c | 62 ++- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 502 +++++++++------------ 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 | 280 +++++++++++- drivers/gpu/drm/vmwgfx/vmwgfx_vkms.c | 40 +- 15 files changed, 827 insertions(+), 534 deletions(-) -- 2.43.0
