[linux-2.6-block.git] / drivers / gpu / drm / etnaviv / etnaviv_gem.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2015-2018 Etnaviv Project
 */

#ifndef __ETNAVIV_GEM_H__
#define __ETNAVIV_GEM_H__

#include <linux/reservation.h>
#include "etnaviv_cmdbuf.h"
#include "etnaviv_drv.h"

struct dma_fence;
struct etnaviv_gem_ops;
struct etnaviv_gem_object;

struct etnaviv_gem_userptr {
	uintptr_t ptr;
	struct mm_struct *mm;
	bool ro;
};

struct etnaviv_vram_mapping {
	struct list_head obj_node;
	struct list_head scan_node;
	struct list_head mmu_node;
	struct etnaviv_gem_object *object;
	struct etnaviv_iommu *mmu;
	struct drm_mm_node vram_node;
	unsigned int use;
	u32 iova;
};

struct etnaviv_gem_object {
	struct drm_gem_object base;
	const struct etnaviv_gem_ops *ops;
	struct mutex lock;

	u32 flags;

	struct list_head gem_node;
	struct etnaviv_gpu *gpu;     /* non-null if active */
	atomic_t gpu_active;
	u32 access;

	struct page **pages;
	struct sg_table *sgt;
	void *vaddr;

	/* normally (resv == &_resv) except for imported bo's */
	struct reservation_object *resv;
	struct reservation_object _resv;

	struct list_head vram_list;

	/* cache maintenance */
	u32 last_cpu_prep_op;

	struct etnaviv_gem_userptr userptr;
};

static inline
struct etnaviv_gem_object *to_etnaviv_bo(struct drm_gem_object *obj)
{
	return container_of(obj, struct etnaviv_gem_object, base);
}

struct etnaviv_gem_ops {
	int (*get_pages)(struct etnaviv_gem_object *);
	void (*release)(struct etnaviv_gem_object *);
	void *(*vmap)(struct etnaviv_gem_object *);
	int (*mmap)(struct etnaviv_gem_object *, struct vm_area_struct *);
};

static inline bool is_active(struct etnaviv_gem_object *etnaviv_obj)
{
	return atomic_read(&etnaviv_obj->gpu_active) != 0;
}

#define MAX_CMDS 4

struct etnaviv_gem_submit_bo {
	u32 flags;
	struct etnaviv_gem_object *obj;
	struct etnaviv_vram_mapping *mapping;
	struct dma_fence *excl;
	unsigned int nr_shared;
	struct dma_fence **shared;
};

/* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
 * associated with the cmdstream submission for synchronization (and
 * make it easier to unwind when things go wrong, etc).
 */
struct etnaviv_gem_submit {
	struct drm_sched_job sched_job;
	struct kref refcount;
	struct etnaviv_gpu *gpu;
	struct dma_fence *out_fence, *in_fence;
	int out_fence_id;
	struct list_head node; /* GPU active submit list */
	struct etnaviv_cmdbuf cmdbuf;
	bool runtime_resumed;
	u32 exec_state;
	u32 flags;
	unsigned int nr_pmrs;
	struct etnaviv_perfmon_request *pmrs;
	unsigned int nr_bos;
	struct etnaviv_gem_submit_bo bos[0];
	/* No new members here, the previous one is variable-length! */
};

void etnaviv_submit_put(struct etnaviv_gem_submit * submit);

int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
	struct timespec *timeout);
int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
	struct reservation_object *robj, const struct etnaviv_gem_ops *ops,
	struct etnaviv_gem_object **res);
void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj);
struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *obj);
void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj);

struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
	struct drm_gem_object *obj, struct etnaviv_gpu *gpu);
void etnaviv_gem_mapping_reference(struct etnaviv_vram_mapping *mapping);
void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping);

#endif /* __ETNAVIV_GEM_H__ */
Commit	Line	Data
f6ffbd4f	1	/* SPDX-License-Identifier: GPL-2.0 */
a8c21a54	2	/*
f6ffbd4f	3	* Copyright (C) 2015-2018 Etnaviv Project
a8c21a54 T	4	*/
	5
	6	#ifndef __ETNAVIV_GEM_H__
	7	#define __ETNAVIV_GEM_H__
	8
	9	#include <linux/reservation.h>
2f9225db	10	#include "etnaviv_cmdbuf.h"
a8c21a54 T	11	#include "etnaviv_drv.h"
a8c21a54 T	12
6e2b98cf	13	struct dma_fence;
a8c21a54 T	14	struct etnaviv_gem_ops;
	15	struct etnaviv_gem_object;
	16
	17	struct etnaviv_gem_userptr {
	18	uintptr_t ptr;
b2295c24	19	struct mm_struct *mm;
a8c21a54 T	20	bool ro;
	21	};
	22
	23	struct etnaviv_vram_mapping {
	24	struct list_head obj_node;
	25	struct list_head scan_node;
	26	struct list_head mmu_node;
	27	struct etnaviv_gem_object *object;
	28	struct etnaviv_iommu *mmu;
	29	struct drm_mm_node vram_node;
	30	unsigned int use;
	31	u32 iova;
	32	};
	33
	34	struct etnaviv_gem_object {
	35	struct drm_gem_object base;
	36	const struct etnaviv_gem_ops *ops;
	37	struct mutex lock;
	38
	39	u32 flags;
	40
	41	struct list_head gem_node;
	42	struct etnaviv_gpu gpu; / non-null if active */
	43	atomic_t gpu_active;
	44	u32 access;
	45
	46	struct page **pages;
	47	struct sg_table *sgt;
	48	void *vaddr;
	49
	50	/* normally (resv == &_resv) except for imported bo's */
	51	struct reservation_object *resv;
	52	struct reservation_object _resv;
	53
	54	struct list_head vram_list;
	55
	56	/* cache maintenance */
	57	u32 last_cpu_prep_op;
	58
	59	struct etnaviv_gem_userptr userptr;
	60	};
	61
	62	static inline
	63	struct etnaviv_gem_object to_etnaviv_bo(struct drm_gem_object obj)
	64	{
	65	return container_of(obj, struct etnaviv_gem_object, base);
	66	}
	67
	68	struct etnaviv_gem_ops {
	69	int (get_pages)(struct etnaviv_gem_object );
	70	void (release)(struct etnaviv_gem_object );
a0a5ab3e	71	void (vmap)(struct etnaviv_gem_object *);
a10e2bde	72	int (mmap)(struct etnaviv_gem_object , struct vm_area_struct *);
a8c21a54 T	73	};
	74
	75	static inline bool is_active(struct etnaviv_gem_object *etnaviv_obj)
	76	{
	77	return atomic_read(&etnaviv_obj->gpu_active) != 0;
	78	}
	79
	80	#define MAX_CMDS 4
	81
8779aa8f RK	82	struct etnaviv_gem_submit_bo {
	83	u32 flags;
	84	struct etnaviv_gem_object *obj;
	85	struct etnaviv_vram_mapping *mapping;
683da226 LS	86	struct dma_fence *excl;
	87	unsigned int nr_shared;
	88	struct dma_fence **shared;
8779aa8f RK	89	};
8779aa8f RK	90
a8c21a54 T	91	/* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
a8c21a54 T	92	* associated with the cmdstream submission for synchronization (and
ef146c00	93	* make it easier to unwind when things go wrong, etc).
a8c21a54 T	94	*/
a8c21a54 T	95	struct etnaviv_gem_submit {
e93b6dee	96	struct drm_sched_job sched_job;
e0329e6c	97	struct kref refcount;
a8c21a54	98	struct etnaviv_gpu *gpu;
9efabd73	99	struct dma_fence out_fence, in_fence;
8bc4d885	100	int out_fence_id;
2f9225db LS	101	struct list_head node; /* GPU active submit list */
2f9225db LS	102	struct etnaviv_cmdbuf cmdbuf;
8bda1516	103	bool runtime_resumed;
797b0159	104	u32 exec_state;
f4a4381b	105	u32 flags;
ef146c00 LS	106	unsigned int nr_pmrs;
ef146c00 LS	107	struct etnaviv_perfmon_request *pmrs;
a8c21a54	108	unsigned int nr_bos;
8779aa8f	109	struct etnaviv_gem_submit_bo bos[0];
f4a4381b	110	/* No new members here, the previous one is variable-length! */
a8c21a54 T	111	};
a8c21a54 T	112
e0329e6c LS	113	void etnaviv_submit_put(struct etnaviv_gem_submit * submit);
e0329e6c LS	114
a8c21a54 T	115	int etnaviv_gem_wait_bo(struct etnaviv_gpu gpu, struct drm_gem_object obj,
	116	struct timespec *timeout);
	117	int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
	118	struct reservation_object robj, const struct etnaviv_gem_ops ops,
	119	struct etnaviv_gem_object **res);
54f09288	120	void etnaviv_gem_obj_add(struct drm_device dev, struct drm_gem_object obj);
a8c21a54 T	121	struct page *etnaviv_gem_get_pages(struct etnaviv_gem_object obj);
	122	void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj);
	123
b6325f40 RK	124	struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
	125	struct drm_gem_object obj, struct etnaviv_gpu gpu);
	126	void etnaviv_gem_mapping_reference(struct etnaviv_vram_mapping *mapping);
	127	void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping);
	128
a8c21a54	129	#endif /* __ETNAVIV_GEM_H__ */