summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/etnaviv/etnaviv_drv.h
blob: ddb17ee565e9250a866944e436f6a8575123b767 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
/*
 * 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_DRV_H__
#define __ETNAVIV_DRV_H__

#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/cpufreq.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/types.h>
#include <linux/sizes.h>

#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_gem.h>
#include <drm/etnaviv_drm.h>
#include <drm/gpu_scheduler.h>

struct etnaviv_cmdbuf;
struct etnaviv_gpu;
struct etnaviv_mmu;
struct etnaviv_gem_object;
struct etnaviv_gem_submit;

struct etnaviv_file_private {
	/*
	 * When per-context address spaces are supported we'd keep track of
	 * the context's page-tables here.
	 */
	struct drm_sched_entity		sched_entity[ETNA_MAX_PIPES];
};

struct etnaviv_drm_private {
	int num_gpus;
	struct etnaviv_gpu *gpu[ETNA_MAX_PIPES];

	/* list of GEM objects: */
	struct mutex gem_lock;
	struct list_head gem_list;
};

int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
		struct drm_file *file);

int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma);
int etnaviv_gem_fault(struct vm_fault *vmf);
int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset);
struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj);
void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj);
void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
int etnaviv_gem_prime_mmap(struct drm_gem_object *obj,
			   struct vm_area_struct *vma);
struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj);
struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
	struct dma_buf_attachment *attach, struct sg_table *sg);
int etnaviv_gem_prime_pin(struct drm_gem_object *obj);
void etnaviv_gem_prime_unpin(struct drm_gem_object *obj);
void *etnaviv_gem_vmap(struct drm_gem_object *obj);
int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
		struct timespec *timeout);
int etnaviv_gem_cpu_fini(struct drm_gem_object *obj);
void etnaviv_gem_free_object(struct drm_gem_object *obj);
int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
		u32 size, u32 flags, u32 *handle);
int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
	uintptr_t ptr, u32 size, u32 flags, u32 *handle);
u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu);
u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr);
u16 etnaviv_buffer_config_pta(struct etnaviv_gpu *gpu);
void etnaviv_buffer_end(struct etnaviv_gpu *gpu);
void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event);
void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, u32 exec_state,
	unsigned int event, struct etnaviv_cmdbuf *cmdbuf);
void etnaviv_validate_init(void);
bool etnaviv_cmd_validate_one(struct etnaviv_gpu *gpu,
	u32 *stream, unsigned int size,
	struct drm_etnaviv_gem_submit_reloc *relocs, unsigned int reloc_size);

#ifdef CONFIG_DEBUG_FS
void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv,
	struct seq_file *m);
#endif

void __iomem *etnaviv_ioremap(struct platform_device *pdev, const char *name,
		const char *dbgname);
void etnaviv_writel(u32 data, void __iomem *addr);
u32 etnaviv_readl(const void __iomem *addr);

#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
#define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)

/*
 * Return the storage size of a structure with a variable length array.
 * The array is nelem elements of elem_size, where the base structure
 * is defined by base.  If the size overflows size_t, return zero.
 */
static inline size_t size_vstruct(size_t nelem, size_t elem_size, size_t base)
{
	if (elem_size && nelem > (SIZE_MAX - base) / elem_size)
		return 0;
	return base + nelem * elem_size;
}

/* returns true if fence a comes after fence b */
static inline bool fence_after(u32 a, u32 b)
{
	return (s32)(a - b) > 0;
}

static inline bool fence_after_eq(u32 a, u32 b)
{
	return (s32)(a - b) >= 0;
}

static inline unsigned long etnaviv_timeout_to_jiffies(
	const struct timespec *timeout)
{
	unsigned long timeout_jiffies = timespec_to_jiffies(timeout);
	unsigned long start_jiffies = jiffies;
	unsigned long remaining_jiffies;

	if (time_after(start_jiffies, timeout_jiffies))
		remaining_jiffies = 0;
	else
		remaining_jiffies = timeout_jiffies - start_jiffies;

	return remaining_jiffies;
}

#endif /* __ETNAVIV_DRV_H__ */