1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2015-2018 Etnaviv Project
6 #ifndef __ETNAVIV_DRV_H__
7 #define __ETNAVIV_DRV_H__
9 #include <linux/list.h>
10 #include <linux/mm_types.h>
11 #include <linux/sizes.h>
12 #include <linux/time64.h>
13 #include <linux/types.h>
15 #include <drm/drm_fb_helper.h>
16 #include <drm/drm_gem.h>
17 #include <drm/etnaviv_drm.h>
18 #include <drm/gpu_scheduler.h>
20 struct etnaviv_cmdbuf
;
23 struct etnaviv_gem_object
;
24 struct etnaviv_gem_submit
;
25 struct etnaviv_iommu_global
;
27 #define ETNAVIV_SOFTPIN_START_ADDRESS SZ_4M /* must be >= SUBALLOC_SIZE */
29 struct etnaviv_file_private
{
30 struct etnaviv_iommu_context
*mmu
;
31 struct drm_sched_entity sched_entity
[ETNA_MAX_PIPES
];
34 struct etnaviv_drm_private
{
36 struct etnaviv_gpu
*gpu
[ETNA_MAX_PIPES
];
39 struct etnaviv_cmdbuf_suballoc
*cmdbuf_suballoc
;
40 struct etnaviv_iommu_global
*mmu_global
;
42 /* list of GEM objects: */
43 struct mutex gem_lock
;
44 struct list_head gem_list
;
47 int etnaviv_ioctl_gem_submit(struct drm_device
*dev
, void *data
,
48 struct drm_file
*file
);
50 int etnaviv_gem_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
51 int etnaviv_gem_mmap_offset(struct drm_gem_object
*obj
, u64
*offset
);
52 struct sg_table
*etnaviv_gem_prime_get_sg_table(struct drm_gem_object
*obj
);
53 int etnaviv_gem_prime_vmap(struct drm_gem_object
*obj
, struct dma_buf_map
*map
);
54 int etnaviv_gem_prime_mmap(struct drm_gem_object
*obj
,
55 struct vm_area_struct
*vma
);
56 struct drm_gem_object
*etnaviv_gem_prime_import_sg_table(struct drm_device
*dev
,
57 struct dma_buf_attachment
*attach
, struct sg_table
*sg
);
58 int etnaviv_gem_prime_pin(struct drm_gem_object
*obj
);
59 void etnaviv_gem_prime_unpin(struct drm_gem_object
*obj
);
60 void *etnaviv_gem_vmap(struct drm_gem_object
*obj
);
61 int etnaviv_gem_cpu_prep(struct drm_gem_object
*obj
, u32 op
,
62 struct drm_etnaviv_timespec
*timeout
);
63 int etnaviv_gem_cpu_fini(struct drm_gem_object
*obj
);
64 void etnaviv_gem_free_object(struct drm_gem_object
*obj
);
65 int etnaviv_gem_new_handle(struct drm_device
*dev
, struct drm_file
*file
,
66 u32 size
, u32 flags
, u32
*handle
);
67 int etnaviv_gem_new_userptr(struct drm_device
*dev
, struct drm_file
*file
,
68 uintptr_t ptr
, u32 size
, u32 flags
, u32
*handle
);
69 u16
etnaviv_buffer_init(struct etnaviv_gpu
*gpu
);
70 u16
etnaviv_buffer_config_mmuv2(struct etnaviv_gpu
*gpu
, u32 mtlb_addr
, u32 safe_addr
);
71 u16
etnaviv_buffer_config_pta(struct etnaviv_gpu
*gpu
, unsigned short id
);
72 void etnaviv_buffer_end(struct etnaviv_gpu
*gpu
);
73 void etnaviv_sync_point_queue(struct etnaviv_gpu
*gpu
, unsigned int event
);
74 void etnaviv_buffer_queue(struct etnaviv_gpu
*gpu
, u32 exec_state
,
75 struct etnaviv_iommu_context
*mmu
,
76 unsigned int event
, struct etnaviv_cmdbuf
*cmdbuf
);
77 void etnaviv_validate_init(void);
78 bool etnaviv_cmd_validate_one(struct etnaviv_gpu
*gpu
,
79 u32
*stream
, unsigned int size
,
80 struct drm_etnaviv_gem_submit_reloc
*relocs
, unsigned int reloc_size
);
82 #ifdef CONFIG_DEBUG_FS
83 void etnaviv_gem_describe_objects(struct etnaviv_drm_private
*priv
,
87 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
88 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
91 * Return the storage size of a structure with a variable length array.
92 * The array is nelem elements of elem_size, where the base structure
93 * is defined by base. If the size overflows size_t, return zero.
95 static inline size_t size_vstruct(size_t nelem
, size_t elem_size
, size_t base
)
97 if (elem_size
&& nelem
> (SIZE_MAX
- base
) / elem_size
)
99 return base
+ nelem
* elem_size
;
103 * Etnaviv timeouts are specified wrt CLOCK_MONOTONIC, not jiffies.
104 * We need to calculate the timeout in terms of number of jiffies
105 * between the specified timeout and the current CLOCK_MONOTONIC time.
107 static inline unsigned long etnaviv_timeout_to_jiffies(
108 const struct drm_etnaviv_timespec
*timeout
)
110 struct timespec64 ts
, to
= {
111 .tv_sec
= timeout
->tv_sec
,
112 .tv_nsec
= timeout
->tv_nsec
,
117 /* timeouts before "now" have already expired */
118 if (timespec64_compare(&to
, &ts
) <= 0)
121 ts
= timespec64_sub(to
, ts
);
123 return timespec64_to_jiffies(&ts
);
126 #endif /* __ETNAVIV_DRV_H__ */