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| author | Noralf Trønnes <noralf@tronnes.org> | 2019-03-12 19:43:44 -0500 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2019-03-14 12:06:44 -0700 |
| commit | 2194a63a818db71065ebe09c8104f5f021ca4e7b (patch) | |
| tree | e3ead32c4e363abc6572b8a2db1646b051cd9fd0 /drivers/gpu/drm/Kconfig | |
| parent | 2de3a078497b4fd7f77964602445521f7a534cfb (diff) | |
| download | linux-2194a63a818db71065ebe09c8104f5f021ca4e7b.tar.bz2 | |
drm: Add library for shmem backed GEM objects
This adds a library for shmem backed GEM objects.
v8:
- export drm_gem_shmem_create_with_handle
- call mapping_set_gfp_mask to set default zone to GFP_HIGHUSER
- Add helper drm_gem_shmem_get_pages_sgt()
v7:
- Use write-combine for mmap instead. This is the more common
case. (robher)
v6:
- Fix uninitialized variable issue in an error path (anholt).
- Add a drm_gem_shmem_vm_open() to the fops to get proper refcounting
of the pages (anholt).
v5:
- Drop drm_gem_shmem_prime_mmap() (Daniel Vetter)
- 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
v4:
- Drop cache modes (Thomas Hellstrom)
- Add a GEM attached vtable
v3:
- Grammar (Sam Ravnborg)
- s/drm_gem_shmem_put_pages_unlocked/drm_gem_shmem_put_pages_locked/
(Sam Ravnborg)
- Add debug output in error path (Sam Ravnborg)
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190313004344.24169-1-robh@kernel.org
Diffstat (limited to 'drivers/gpu/drm/Kconfig')
| -rw-r--r-- | drivers/gpu/drm/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 7e3b8360bfc4..5e1bc630b885 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -173,6 +173,12 @@ config DRM_KMS_CMA_HELPER help Choose this if you need the KMS CMA helper functions +config DRM_GEM_SHMEM_HELPER + bool + depends on DRM + help + Choose this if you need the GEM shmem helper functions + config DRM_VM bool depends on DRM && MMU |