From 41068c8b28e16f1c2c26c854271520e1f3afaa22 Mon Sep 17 00:00:00 2001 From: Simon Ser Date: Thu, 2 Mar 2023 14:35:13 +0000 Subject: [PATCH] drm/vram-helper: turn on PRIME import/export MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit We don't populate drm_driver.gem_prime_import_sg_table so only DMA-BUFs exported from our own device can be imported. We don't populate drm_gem_object_funcs.get_sg_table so DMA-BUFs cannot be imported into another device. Still, this is useful to user-space to share buffers between processes and between API boundaries (e.g. wlroots hard-requires PRIME import/export support). v2: expand commit message Signed-off-by: Simon Ser Cc: Daniel Vetter Cc: Tian Tao Cc: Maxime Ripard Cc: Hans de Goede Acked-by: Thomas Zimmermann Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20230302143502.500661-2-contact@emersion.fr --- include/drm/drm_gem_vram_helper.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h index d3e8920..f4aab64 100644 --- a/include/drm/drm_gem_vram_helper.h +++ b/include/drm/drm_gem_vram_helper.h @@ -160,7 +160,9 @@ void drm_gem_vram_simple_display_pipe_cleanup_fb( .debugfs_init = drm_vram_mm_debugfs_init, \ .dumb_create = drm_gem_vram_driver_dumb_create, \ .dumb_map_offset = drm_gem_ttm_dumb_map_offset, \ - .gem_prime_mmap = drm_gem_prime_mmap + .gem_prime_mmap = drm_gem_prime_mmap, \ + .prime_handle_to_fd = drm_gem_prime_handle_to_fd, \ + .prime_fd_to_handle = drm_gem_prime_fd_to_handle /* * VRAM memory manager -- 2.7.4