[people/arne_f/kernel.git] / drivers / gpu / drm / nouveau / include / nvkm / core / mm.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NVKM_MM_H__
#define __NVKM_MM_H__
#include <core/os.h>

struct nvkm_mm_node {
	struct list_head nl_entry;
	struct list_head fl_entry;
	struct nvkm_mm_node *next;

#define NVKM_MM_HEAP_ANY 0x00
	u8  heap;
#define NVKM_MM_TYPE_NONE 0x00
#define NVKM_MM_TYPE_HOLE 0xff
	u8  type;
	u32 offset;
	u32 length;
};

struct nvkm_mm {
	struct list_head nodes;
	struct list_head free;

	u32 block_size;
	int heap_nodes;
};

static inline bool
nvkm_mm_initialised(struct nvkm_mm *mm)
{
	return mm->heap_nodes;
}

int  nvkm_mm_init(struct nvkm_mm *, u32 offset, u32 length, u32 block);
int  nvkm_mm_fini(struct nvkm_mm *);
int  nvkm_mm_head(struct nvkm_mm *, u8 heap, u8 type, u32 size_max,
		  u32 size_min, u32 align, struct nvkm_mm_node **);
int  nvkm_mm_tail(struct nvkm_mm *, u8 heap, u8 type, u32 size_max,
		  u32 size_min, u32 align, struct nvkm_mm_node **);
void nvkm_mm_free(struct nvkm_mm *, struct nvkm_mm_node **);
void nvkm_mm_dump(struct nvkm_mm *, const char *);

static inline bool
nvkm_mm_contiguous(struct nvkm_mm_node *node)
{
	return !node->next;
}
#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
5025407b BS	2	#ifndef __NVKM_MM_H__
	3	#define __NVKM_MM_H__
	4	#include <core/os.h>
573a2a37	5
5025407b	6	struct nvkm_mm_node {
573a2a37 BS	7	struct list_head nl_entry;
573a2a37 BS	8	struct list_head fl_entry;
134fdc1a	9	struct nvkm_mm_node *next;
573a2a37	10
65270a65 BS	11	#define NVKM_MM_HEAP_ANY 0x00
65270a65 BS	12	u8 heap;
79456e1a	13	#define NVKM_MM_TYPE_NONE 0x00
13dfe128	14	#define NVKM_MM_TYPE_HOLE 0xff
8b464bfe	15	u8 type;
573a2a37 BS	16	u32 offset;
	17	u32 length;
	18	};
	19
5025407b	20	struct nvkm_mm {
573a2a37 BS	21	struct list_head nodes;
	22	struct list_head free;
	23
573a2a37	24	u32 block_size;
a12036ba	25	int heap_nodes;
573a2a37 BS	26	};
573a2a37 BS	27
7e0f992b	28	static inline bool
5025407b	29	nvkm_mm_initialised(struct nvkm_mm *mm)
7e0f992b	30	{
d36a99d2	31	return mm->heap_nodes;
7e0f992b BS	32	}
7e0f992b BS	33
5025407b BS	34	int nvkm_mm_init(struct nvkm_mm *, u32 offset, u32 length, u32 block);
	35	int nvkm_mm_fini(struct nvkm_mm *);
	36	int nvkm_mm_head(struct nvkm_mm *, u8 heap, u8 type, u32 size_max,
	37	u32 size_min, u32 align, struct nvkm_mm_node **);
	38	int nvkm_mm_tail(struct nvkm_mm *, u8 heap, u8 type, u32 size_max,
	39	u32 size_min, u32 align, struct nvkm_mm_node **);
	40	void nvkm_mm_free(struct nvkm_mm , struct nvkm_mm_node *);
d36a99d2	41	void nvkm_mm_dump(struct nvkm_mm , const char );
134fdc1a BS	42
	43	static inline bool
	44	nvkm_mm_contiguous(struct nvkm_mm_node *node)
	45	{
	46	return !node->next;
	47	}
573a2a37	48	#endif