This patchset adds a library for shmem backed GEM objects and makes use of it in tinydrm. Daniel suggested that I make a generic mmap function for GEM PRIME. I wondered if I could make it the default for drm_driver->gem_prime_mmap so I looked at all the drivers that don't set that callback: - armada, i915, omap and udl has their own dmabuf implementations. - nouveau and radeon use drm_gem_prime_export(), but don't set the ->gem_prime_mmap callback. Making it default would change the behaviour of those last two so I let it be. I'm cc'ing intel-gfx to have the CI look at the core changes I've made. I can't exercise all the codepaths using vc4 and tinydrm. Noralf. Changes since version 4: - Add drm_gem_prime_mmap() (Daniel Vetter) - Drop drm_gem_object_funcs->prime_mmap - drm_gem_shmem_mmap(): Subtract drm_vma_node_start() to get the real vma->vm_pgoff - drm_gem_shmem_fault(): Use vmf->pgoff now that vma->vm_pgoff is correct Changes since version 3: - Drop cache modes (Thomas Hellstrom) - Add a GEM object attached vtable Changes since version 2: - Grammar (Sam Ravnborg) - s/drm_gem_shmem_put_pages_unlocked/drm_gem_shmem_put_pages_locked/ (Sam Ravnborg) - Add debug ouput in error path (Sam Ravnborg) Changes since version 1: - Fix missing argument in docs (kbuild test robot) - Fix: sparse: expression using sizeof(void) (kbuild test robot) - Rebasing gave a new checkpatch warning, so I changed to bitfields: CHECK: Avoid using bool structure members because of possible alignment issues - see: https://lkml.org/lkml/2017/11/21/384 #834: FILE: include/drm/drm_gem_shmem_helper.h:84: + bool pages_mark_dirty_on_put; #841: FILE: include/drm/drm_gem_shmem_helper.h:91: + bool pages_mark_accessed_on_put; Noralf Trønnes (5): drm/driver: Add defaults for .gem_prime_export/import callbacks drm/prime: Add drm_gem_prime_mmap() drm/gem: Add drm_gem_object_funcs drm: Add library for shmem backed GEM objects drm/tinydrm: Switch from CMA to shmem buffers Documentation/gpu/drm-kms-helpers.rst | 12 + Documentation/gpu/todo.rst | 7 + drivers/gpu/drm/Kconfig | 6 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/drm_client.c | 12 +- drivers/gpu/drm/drm_gem.c | 109 ++++- drivers/gpu/drm/drm_gem_shmem_helper.c | 551 +++++++++++++++++++++++++ drivers/gpu/drm/drm_prime.c | 79 +++- drivers/gpu/drm/tinydrm/Kconfig | 2 +- drivers/gpu/drm/tinydrm/core/tinydrm-core.c | 92 ++--- drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c | 5 + drivers/gpu/drm/tinydrm/ili9225.c | 14 +- drivers/gpu/drm/tinydrm/ili9341.c | 6 +- drivers/gpu/drm/tinydrm/mi0283qt.c | 6 +- drivers/gpu/drm/tinydrm/mipi-dbi.c | 38 +- drivers/gpu/drm/tinydrm/repaper.c | 24 +- drivers/gpu/drm/tinydrm/st7586.c | 15 +- drivers/gpu/drm/tinydrm/st7735r.c | 6 +- include/drm/drm_drv.h | 4 + include/drm/drm_gem.h | 131 ++++++ include/drm/drm_gem_shmem_helper.h | 153 +++++++ include/drm/drm_prime.h | 1 + include/drm/tinydrm/tinydrm.h | 36 +- 23 files changed, 1122 insertions(+), 188 deletions(-) create mode 100644 drivers/gpu/drm/drm_gem_shmem_helper.c create mode 100644 include/drm/drm_gem_shmem_helper.h -- 2.15.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
