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Diffstat (limited to 'include/drm/drm_gem_cma_helper.h')
-rw-r--r--include/drm/drm_gem_cma_helper.h25
1 files changed, 17 insertions, 8 deletions
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
index 2ff35f3de9c5..873d4eb7f125 100644
--- a/include/drm/drm_gem_cma_helper.h
+++ b/include/drm/drm_gem_cma_helper.h
@@ -4,6 +4,13 @@
#include <drm/drmP.h>
#include <drm/drm_gem.h>
+/**
+ * struct drm_gem_cma_object - GEM object backed by CMA memory allocations
+ * @base: base GEM object
+ * @paddr: physical address of the backing memory
+ * @sgt: scatter/gather table for imported PRIME buffers
+ * @vaddr: kernel virtual address of the backing memory
+ */
struct drm_gem_cma_object {
struct drm_gem_object base;
dma_addr_t paddr;
@@ -19,23 +26,25 @@ 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. */
+/* free GEM object */
void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);
-/* create memory region for drm framebuffer. */
+/* 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);
+ struct drm_device *drm,
+ struct drm_mode_create_dumb *args);
-/* map memory region for drm framebuffer to user space. */
+/* 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);
+ struct drm_device *drm, u32 handle,
+ u64 *offset);
-/* set vm_flags and we can change the vm attribute to other one at here. */
+/* 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);
-/* allocate physical memory. */
+/* allocate physical memory */
struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
- unsigned int size);
+ size_t size);
extern const struct vm_operations_struct drm_gem_cma_vm_ops;

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