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Commit b7e1f3f1 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/core/mm: introduce functions to access info about a given allocation 



These will be used in upcoming patches.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 4d058fab

drivers/gpu/drm/nouveau/include/nvkm/core/mm.h

+30 −0
Original line number Diff line number Diff line
@@ -39,9 +39,39 @@ int nvkm_mm_tail(struct nvkm_mm *, u8 heap, u8 type, u32 size_max, 
void nvkm_mm_free(struct nvkm_mm *, struct nvkm_mm_node **);

void nvkm_mm_dump(struct nvkm_mm *, const char *);



static inline u32

nvkm_mm_heap_size(struct nvkm_mm *mm, u8 heap)

{

	struct nvkm_mm_node *node;

	u32 size = 0;

	list_for_each_entry(node, &mm->nodes, nl_entry) {

		if (node->heap == heap)

			size += node->length;

	}

	return size;

}



static inline bool

nvkm_mm_contiguous(struct nvkm_mm_node *node)

{

	return !node->next;

}



static inline u32

nvkm_mm_addr(struct nvkm_mm_node *node)

{

	if (WARN_ON(!nvkm_mm_contiguous(node)))

		return 0;

	return node->offset;

}



static inline u32

nvkm_mm_size(struct nvkm_mm_node *node)

{

	u32 size = 0;

	do {

		size += node->length;

	} while ((node = node->next));

	return size;

}

#endif