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

/*
 * Copyright (C) 2015 Etnaviv Project
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#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;
};

/* 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
a8c21a54 T	1	/*
	2	* Copyright (C) 2015 Etnaviv Project
	3	*
	4	* This program is free software; you can redistribute it and/or modify it
	5	* under the terms of the GNU General Public License version 2 as published by
	6	* the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it will be useful, but WITHOUT
	9	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	10	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	11	* more details.
	12	*
	13	* You should have received a copy of the GNU General Public License along with
	14	* this program. If not, see <http://www.gnu.org/licenses/>.
	15	*/
	16
	17	#ifndef __ETNAVIV_GEM_H__
	18	#define __ETNAVIV_GEM_H__
	19
	20	#include <linux/reservation.h>
2f9225db	21	#include "etnaviv_cmdbuf.h"
a8c21a54 T	22	#include "etnaviv_drv.h"
a8c21a54 T	23
6e2b98cf	24	struct dma_fence;
a8c21a54 T	25	struct etnaviv_gem_ops;
	26	struct etnaviv_gem_object;
	27
	28	struct etnaviv_gem_userptr {
	29	uintptr_t ptr;
b2295c24	30	struct mm_struct *mm;
a8c21a54 T	31	bool ro;
	32	};
	33
	34	struct etnaviv_vram_mapping {
	35	struct list_head obj_node;
	36	struct list_head scan_node;
	37	struct list_head mmu_node;
	38	struct etnaviv_gem_object *object;
	39	struct etnaviv_iommu *mmu;
	40	struct drm_mm_node vram_node;
	41	unsigned int use;
	42	u32 iova;
	43	};
	44
	45	struct etnaviv_gem_object {
	46	struct drm_gem_object base;
	47	const struct etnaviv_gem_ops *ops;
	48	struct mutex lock;
	49
	50	u32 flags;
	51
	52	struct list_head gem_node;
	53	struct etnaviv_gpu gpu; / non-null if active */
	54	atomic_t gpu_active;
	55	u32 access;
	56
	57	struct page **pages;
	58	struct sg_table *sgt;
	59	void *vaddr;
	60
	61	/* normally (resv == &_resv) except for imported bo's */
	62	struct reservation_object *resv;
	63	struct reservation_object _resv;
	64
	65	struct list_head vram_list;
	66
	67	/* cache maintenance */
	68	u32 last_cpu_prep_op;
	69
	70	struct etnaviv_gem_userptr userptr;
	71	};
	72
	73	static inline
	74	struct etnaviv_gem_object to_etnaviv_bo(struct drm_gem_object obj)
	75	{
	76	return container_of(obj, struct etnaviv_gem_object, base);
	77	}
	78
	79	struct etnaviv_gem_ops {
	80	int (get_pages)(struct etnaviv_gem_object );
	81	void (release)(struct etnaviv_gem_object );
a0a5ab3e	82	void (vmap)(struct etnaviv_gem_object *);
a10e2bde	83	int (mmap)(struct etnaviv_gem_object , struct vm_area_struct *);
a8c21a54 T	84	};
	85
	86	static inline bool is_active(struct etnaviv_gem_object *etnaviv_obj)
	87	{
	88	return atomic_read(&etnaviv_obj->gpu_active) != 0;
	89	}
	90
	91	#define MAX_CMDS 4
	92
8779aa8f RK	93	struct etnaviv_gem_submit_bo {
	94	u32 flags;
	95	struct etnaviv_gem_object *obj;
	96	struct etnaviv_vram_mapping *mapping;
	97	};
	98
a8c21a54 T	99	/* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
a8c21a54 T	100	* associated with the cmdstream submission for synchronization (and
ef146c00	101	* make it easier to unwind when things go wrong, etc).
a8c21a54 T	102	*/
a8c21a54 T	103	struct etnaviv_gem_submit {
e93b6dee	104	struct drm_sched_job sched_job;
e0329e6c	105	struct kref refcount;
a8c21a54	106	struct etnaviv_gpu *gpu;
9efabd73	107	struct dma_fence out_fence, in_fence;
8bc4d885	108	int out_fence_id;
2f9225db LS	109	struct list_head node; /* GPU active submit list */
2f9225db LS	110	struct etnaviv_cmdbuf cmdbuf;
8bda1516	111	bool runtime_resumed;
797b0159	112	u32 exec_state;
f4a4381b	113	u32 flags;
ef146c00 LS	114	unsigned int nr_pmrs;
ef146c00 LS	115	struct etnaviv_perfmon_request *pmrs;
a8c21a54	116	unsigned int nr_bos;
8779aa8f	117	struct etnaviv_gem_submit_bo bos[0];
f4a4381b	118	/* No new members here, the previous one is variable-length! */
a8c21a54 T	119	};
a8c21a54 T	120
e0329e6c LS	121	void etnaviv_submit_put(struct etnaviv_gem_submit * submit);
e0329e6c LS	122
a8c21a54 T	123	int etnaviv_gem_wait_bo(struct etnaviv_gpu gpu, struct drm_gem_object obj,
	124	struct timespec *timeout);
	125	int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
	126	struct reservation_object robj, const struct etnaviv_gem_ops ops,
	127	struct etnaviv_gem_object **res);
54f09288	128	void etnaviv_gem_obj_add(struct drm_device dev, struct drm_gem_object obj);
a8c21a54 T	129	struct page *etnaviv_gem_get_pages(struct etnaviv_gem_object obj);
	130	void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj);
	131
b6325f40 RK	132	struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
	133	struct drm_gem_object obj, struct etnaviv_gpu gpu);
	134	void etnaviv_gem_mapping_reference(struct etnaviv_vram_mapping *mapping);
	135	void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping);
	136
a8c21a54	137	#endif /* __ETNAVIV_GEM_H__ */