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/kernel.h>
10 #include <linux/clk.h>
11 #include <linux/cpufreq.h>
12 #include <linux/module.h>
13 #include <linux/platform_device.h>
15 #include <linux/pm_runtime.h>
16 #include <linux/slab.h>
17 #include <linux/list.h>
18 #include <linux/time64.h>
19 #include <linux/types.h>
20 #include <linux/sizes.h>
21 #include <linux/mm_types.h>
24 #include <drm/drm_crtc_helper.h>
25 #include <drm/drm_fb_helper.h>
26 #include <drm/drm_gem.h>
27 #include <drm/etnaviv_drm.h>
28 #include <drm/gpu_scheduler.h>
30 struct etnaviv_cmdbuf;
33 struct etnaviv_gem_object;
34 struct etnaviv_gem_submit;
36 struct etnaviv_file_private {
38 * When per-context address spaces are supported we'd keep track of
39 * the context's page-tables here.
41 struct drm_sched_entity sched_entity[ETNA_MAX_PIPES];
44 struct etnaviv_drm_private {
46 struct device_dma_parameters dma_parms;
47 struct etnaviv_gpu *gpu[ETNA_MAX_PIPES];
49 /* list of GEM objects: */
50 struct mutex gem_lock;
51 struct list_head gem_list;
54 int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
55 struct drm_file *file);
57 int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma);
58 vm_fault_t etnaviv_gem_fault(struct vm_fault *vmf);
59 int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset);
60 struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj);
61 void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj);
62 void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
63 int etnaviv_gem_prime_mmap(struct drm_gem_object *obj,
64 struct vm_area_struct *vma);
65 struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj);
66 struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
67 struct dma_buf_attachment *attach, struct sg_table *sg);
68 int etnaviv_gem_prime_pin(struct drm_gem_object *obj);
69 void etnaviv_gem_prime_unpin(struct drm_gem_object *obj);
70 void *etnaviv_gem_vmap(struct drm_gem_object *obj);
71 int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
72 struct timespec *timeout);
73 int etnaviv_gem_cpu_fini(struct drm_gem_object *obj);
74 void etnaviv_gem_free_object(struct drm_gem_object *obj);
75 int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
76 u32 size, u32 flags, u32 *handle);
77 int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
78 uintptr_t ptr, u32 size, u32 flags, u32 *handle);
79 u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu);
80 u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr);
81 u16 etnaviv_buffer_config_pta(struct etnaviv_gpu *gpu);
82 void etnaviv_buffer_end(struct etnaviv_gpu *gpu);
83 void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event);
84 void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, u32 exec_state,
85 unsigned int event, struct etnaviv_cmdbuf *cmdbuf);
86 void etnaviv_validate_init(void);
87 bool etnaviv_cmd_validate_one(struct etnaviv_gpu *gpu,
88 u32 *stream, unsigned int size,
89 struct drm_etnaviv_gem_submit_reloc *relocs, unsigned int reloc_size);
91 #ifdef CONFIG_DEBUG_FS
92 void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv,
96 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
97 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
100 * Return the storage size of a structure with a variable length array.
101 * The array is nelem elements of elem_size, where the base structure
102 * is defined by base. If the size overflows size_t, return zero.
104 static inline size_t size_vstruct(size_t nelem, size_t elem_size, size_t base)
106 if (elem_size && nelem > (SIZE_MAX - base) / elem_size)
108 return base + nelem * elem_size;
111 /* returns true if fence a comes after fence b */
112 static inline bool fence_after(u32 a, u32 b)
114 return (s32)(a - b) > 0;
117 static inline bool fence_after_eq(u32 a, u32 b)
119 return (s32)(a - b) >= 0;
123 * Etnaviv timeouts are specified wrt CLOCK_MONOTONIC, not jiffies.
124 * We need to calculate the timeout in terms of number of jiffies
125 * between the specified timeout and the current CLOCK_MONOTONIC time.
127 static inline unsigned long etnaviv_timeout_to_jiffies(
128 const struct timespec *timeout)
130 struct timespec64 ts, to;
132 to = timespec_to_timespec64(*timeout);
136 /* timeouts before "now" have already expired */
137 if (timespec64_compare(&to, &ts) <= 0)
140 ts = timespec64_sub(to, ts);
142 return timespec64_to_jiffies(&ts);
145 #endif /* __ETNAVIV_DRV_H__ */