diff options
author | Arnd Bergmann <arnd@arndb.de> | 2012-10-04 22:57:00 +0200 |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2012-10-04 22:57:51 +0200 |
commit | c37d6154c0b9163c27e53cc1d0be3867b4abd760 (patch) | |
tree | 7a24522c56d1cb284dff1d3c225bbdaba0901bb5 /include/drm/drm_gem_cma_helper.h | |
parent | e7a570ff7dff9af6e54ff5e580a61ec7652137a0 (diff) | |
parent | 8a1ab3155c2ac7fbe5f2038d6e26efeb607a1498 (diff) |
Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic
Patches from David Howells <dhowells@redhat.com>:
This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.
Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.
* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate include/asm-generic
UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
c6x: remove c6x signal.h
UAPI: Split compound conditionals containing __KERNEL__ in Arm64
UAPI: Fix the guards on various asm/unistd.h files
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include/drm/drm_gem_cma_helper.h')
-rw-r--r-- | include/drm/drm_gem_cma_helper.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h new file mode 100644 index 00000000000..f0f6b1af25a --- /dev/null +++ b/include/drm/drm_gem_cma_helper.h @@ -0,0 +1,44 @@ +#ifndef __DRM_GEM_CMA_HELPER_H__ +#define __DRM_GEM_CMA_HELPER_H__ + +struct drm_gem_cma_object { + struct drm_gem_object base; + dma_addr_t paddr; + void *vaddr; +}; + +static inline struct drm_gem_cma_object * +to_drm_gem_cma_obj(struct drm_gem_object *gem_obj) +{ + return container_of(gem_obj, struct drm_gem_cma_object, base); +} + +/* free gem object. */ +void drm_gem_cma_free_object(struct drm_gem_object *gem_obj); + +/* create memory region for drm framebuffer. */ +int drm_gem_cma_dumb_create(struct drm_file *file_priv, + struct drm_device *drm, struct drm_mode_create_dumb *args); + +/* map memory region for drm framebuffer to user space. */ +int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv, + struct drm_device *drm, uint32_t handle, uint64_t *offset); + +/* set vm_flags and we can change the vm attribute to other one at here. */ +int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma); + +/* + * destroy memory region allocated. + * - a gem handle and physical memory region pointed by a gem object + * would be released by drm_gem_handle_delete(). + */ +int drm_gem_cma_dumb_destroy(struct drm_file *file_priv, + struct drm_device *drm, unsigned int handle); + +/* allocate physical memory. */ +struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm, + unsigned int size); + +extern const struct vm_operations_struct drm_gem_cma_vm_ops; + +#endif /* __DRM_GEM_CMA_HELPER_H__ */ |