This patchset complements Daniel's recent patches for SHMEM. [1] By default SHMEM maps pages using writecombine. Only virtio sets the SHMEM implmentation to use cached mappings. Udl implements its own vmap/mmap functions, which always maps pages with caching. Unify the settings by switching the SHMEM code to use cached mappings (i.e., PAGE_KERNEL actually). The exception is dma-buf imported pages, which are still mapped using writecombine. Tested with udl-driven hardware. [1] https://lists.freedesktop.org/archives/dri-devel/2020-May/265468.html Thomas Zimmermann (2): drm/shmem: Use cached mappings by default drm/udl: Use GEM vmap/mmap function from SHMEM helpers drivers/gpu/drm/drm_gem_shmem_helper.c | 6 +- drivers/gpu/drm/udl/Makefile | 2 +- drivers/gpu/drm/udl/udl_drv.c | 3 - drivers/gpu/drm/udl/udl_drv.h | 3 - drivers/gpu/drm/udl/udl_gem.c | 106 ------------------------ drivers/gpu/drm/virtio/virtgpu_object.c | 1 - include/drm/drm_gem_shmem_helper.h | 4 +- 7 files changed, 7 insertions(+), 118 deletions(-) delete mode 100644 drivers/gpu/drm/udl/udl_gem.c -- 2.26.2 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
