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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_DRV_H__ | |
18 | #define __ETNAVIV_DRV_H__ | |
19 | ||
20 | #include <linux/kernel.h> | |
21 | #include <linux/clk.h> | |
22 | #include <linux/cpufreq.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/platform_device.h> | |
25 | #include <linux/pm.h> | |
26 | #include <linux/pm_runtime.h> | |
27 | #include <linux/slab.h> | |
28 | #include <linux/list.h> | |
29 | #include <linux/iommu.h> | |
30 | #include <linux/types.h> | |
31 | #include <linux/sizes.h> | |
32 | ||
33 | #include <drm/drmP.h> | |
34 | #include <drm/drm_crtc_helper.h> | |
35 | #include <drm/drm_fb_helper.h> | |
36 | #include <drm/drm_gem.h> | |
37 | #include <drm/etnaviv_drm.h> | |
38 | ||
39 | struct etnaviv_cmdbuf; | |
40 | struct etnaviv_gpu; | |
41 | struct etnaviv_mmu; | |
42 | struct etnaviv_gem_object; | |
43 | struct etnaviv_gem_submit; | |
44 | ||
45 | struct etnaviv_file_private { | |
46 | /* currently we don't do anything useful with this.. but when | |
47 | * per-context address spaces are supported we'd keep track of | |
48 | * the context's page-tables here. | |
49 | */ | |
50 | int dummy; | |
51 | }; | |
52 | ||
53 | struct etnaviv_drm_private { | |
54 | int num_gpus; | |
55 | struct etnaviv_gpu *gpu[ETNA_MAX_PIPES]; | |
56 | ||
57 | /* list of GEM objects: */ | |
58 | struct mutex gem_lock; | |
59 | struct list_head gem_list; | |
60 | ||
61 | struct workqueue_struct *wq; | |
62 | }; | |
63 | ||
64 | static inline void etnaviv_queue_work(struct drm_device *dev, | |
65 | struct work_struct *w) | |
66 | { | |
67 | struct etnaviv_drm_private *priv = dev->dev_private; | |
68 | ||
69 | queue_work(priv->wq, w); | |
70 | } | |
71 | ||
72 | int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, | |
73 | struct drm_file *file); | |
74 | ||
75 | int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma); | |
11bac800 | 76 | int etnaviv_gem_fault(struct vm_fault *vmf); |
a8c21a54 | 77 | int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset); |
a8c21a54 T |
78 | struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj); |
79 | void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj); | |
80 | void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); | |
5688e57e LS |
81 | int etnaviv_gem_prime_mmap(struct drm_gem_object *obj, |
82 | struct vm_area_struct *vma); | |
a8c21a54 T |
83 | struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev, |
84 | struct dma_buf_attachment *attach, struct sg_table *sg); | |
85 | int etnaviv_gem_prime_pin(struct drm_gem_object *obj); | |
86 | void etnaviv_gem_prime_unpin(struct drm_gem_object *obj); | |
ce3088fd | 87 | void *etnaviv_gem_vmap(struct drm_gem_object *obj); |
a8c21a54 T |
88 | int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op, |
89 | struct timespec *timeout); | |
90 | int etnaviv_gem_cpu_fini(struct drm_gem_object *obj); | |
91 | void etnaviv_gem_free_object(struct drm_gem_object *obj); | |
92 | int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file, | |
93 | u32 size, u32 flags, u32 *handle); | |
94 | struct drm_gem_object *etnaviv_gem_new_locked(struct drm_device *dev, | |
95 | u32 size, u32 flags); | |
96 | struct drm_gem_object *etnaviv_gem_new(struct drm_device *dev, | |
97 | u32 size, u32 flags); | |
98 | int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file, | |
99 | uintptr_t ptr, u32 size, u32 flags, u32 *handle); | |
100 | u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu); | |
de08e8ef | 101 | u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr); |
a8c21a54 T |
102 | void etnaviv_buffer_end(struct etnaviv_gpu *gpu); |
103 | void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, | |
104 | struct etnaviv_cmdbuf *cmdbuf); | |
105 | void etnaviv_validate_init(void); | |
106 | bool etnaviv_cmd_validate_one(struct etnaviv_gpu *gpu, | |
107 | u32 *stream, unsigned int size, | |
108 | struct drm_etnaviv_gem_submit_reloc *relocs, unsigned int reloc_size); | |
109 | ||
110 | #ifdef CONFIG_DEBUG_FS | |
111 | void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv, | |
112 | struct seq_file *m); | |
113 | #endif | |
114 | ||
115 | void __iomem *etnaviv_ioremap(struct platform_device *pdev, const char *name, | |
116 | const char *dbgname); | |
117 | void etnaviv_writel(u32 data, void __iomem *addr); | |
118 | u32 etnaviv_readl(const void __iomem *addr); | |
119 | ||
120 | #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) | |
121 | #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) | |
122 | ||
123 | /* | |
124 | * Return the storage size of a structure with a variable length array. | |
125 | * The array is nelem elements of elem_size, where the base structure | |
126 | * is defined by base. If the size overflows size_t, return zero. | |
127 | */ | |
128 | static inline size_t size_vstruct(size_t nelem, size_t elem_size, size_t base) | |
129 | { | |
130 | if (elem_size && nelem > (SIZE_MAX - base) / elem_size) | |
131 | return 0; | |
132 | return base + nelem * elem_size; | |
133 | } | |
134 | ||
135 | /* returns true if fence a comes after fence b */ | |
136 | static inline bool fence_after(u32 a, u32 b) | |
137 | { | |
138 | return (s32)(a - b) > 0; | |
139 | } | |
140 | ||
141 | static inline bool fence_after_eq(u32 a, u32 b) | |
142 | { | |
143 | return (s32)(a - b) >= 0; | |
144 | } | |
145 | ||
146 | static inline unsigned long etnaviv_timeout_to_jiffies( | |
147 | const struct timespec *timeout) | |
148 | { | |
149 | unsigned long timeout_jiffies = timespec_to_jiffies(timeout); | |
150 | unsigned long start_jiffies = jiffies; | |
151 | unsigned long remaining_jiffies; | |
152 | ||
153 | if (time_after(start_jiffies, timeout_jiffies)) | |
154 | remaining_jiffies = 0; | |
155 | else | |
156 | remaining_jiffies = timeout_jiffies - start_jiffies; | |
157 | ||
158 | return remaining_jiffies; | |
159 | } | |
160 | ||
161 | #endif /* __ETNAVIV_DRV_H__ */ |