1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) 2015-2018 Etnaviv Project 4 */ 5 6 #ifndef __ETNAVIV_DRV_H__ 7 #define __ETNAVIV_DRV_H__ 8 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> 14 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> 19 20 struct etnaviv_cmdbuf; 21 struct etnaviv_gpu; 22 struct etnaviv_mmu; 23 struct etnaviv_gem_object; 24 struct etnaviv_gem_submit; 25 struct etnaviv_iommu_global; 26 27 #define ETNAVIV_SOFTPIN_START_ADDRESS SZ_4M /* must be >= SUBALLOC_SIZE */ 28 29 struct etnaviv_file_private { 30 struct etnaviv_iommu_context *mmu; 31 struct drm_sched_entity sched_entity[ETNA_MAX_PIPES]; 32 }; 33 34 struct etnaviv_drm_private { 35 int num_gpus; 36 struct device_dma_parameters dma_parms; 37 struct etnaviv_gpu *gpu[ETNA_MAX_PIPES]; 38 39 struct etnaviv_cmdbuf_suballoc *cmdbuf_suballoc; 40 struct etnaviv_iommu_global *mmu_global; 41 42 /* list of GEM objects: */ 43 struct mutex gem_lock; 44 struct list_head gem_list; 45 }; 46 47 int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, 48 struct drm_file *file); 49 50 int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma); 51 vm_fault_t etnaviv_gem_fault(struct vm_fault *vmf); 52 int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset); 53 struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj); 54 void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj); 55 void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); 56 int etnaviv_gem_prime_mmap(struct drm_gem_object *obj, 57 struct vm_area_struct *vma); 58 struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev, 59 struct dma_buf_attachment *attach, struct sg_table *sg); 60 int etnaviv_gem_prime_pin(struct drm_gem_object *obj); 61 void etnaviv_gem_prime_unpin(struct drm_gem_object *obj); 62 void *etnaviv_gem_vmap(struct drm_gem_object *obj); 63 int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op, 64 struct drm_etnaviv_timespec *timeout); 65 int etnaviv_gem_cpu_fini(struct drm_gem_object *obj); 66 void etnaviv_gem_free_object(struct drm_gem_object *obj); 67 int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file, 68 u32 size, u32 flags, u32 *handle); 69 int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file, 70 uintptr_t ptr, u32 size, u32 flags, u32 *handle); 71 u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu); 72 u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr); 73 u16 etnaviv_buffer_config_pta(struct etnaviv_gpu *gpu, unsigned short id); 74 void etnaviv_buffer_end(struct etnaviv_gpu *gpu); 75 void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event); 76 void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, u32 exec_state, 77 struct etnaviv_iommu_context *mmu, 78 unsigned int event, struct etnaviv_cmdbuf *cmdbuf); 79 void etnaviv_validate_init(void); 80 bool etnaviv_cmd_validate_one(struct etnaviv_gpu *gpu, 81 u32 *stream, unsigned int size, 82 struct drm_etnaviv_gem_submit_reloc *relocs, unsigned int reloc_size); 83 84 #ifdef CONFIG_DEBUG_FS 85 void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv, 86 struct seq_file *m); 87 #endif 88 89 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) 90 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) 91 92 /* 93 * Return the storage size of a structure with a variable length array. 94 * The array is nelem elements of elem_size, where the base structure 95 * is defined by base. If the size overflows size_t, return zero. 96 */ 97 static inline size_t size_vstruct(size_t nelem, size_t elem_size, size_t base) 98 { 99 if (elem_size && nelem > (SIZE_MAX - base) / elem_size) 100 return 0; 101 return base + nelem * elem_size; 102 } 103 104 /* 105 * Etnaviv timeouts are specified wrt CLOCK_MONOTONIC, not jiffies. 106 * We need to calculate the timeout in terms of number of jiffies 107 * between the specified timeout and the current CLOCK_MONOTONIC time. 108 */ 109 static inline unsigned long etnaviv_timeout_to_jiffies( 110 const struct drm_etnaviv_timespec *timeout) 111 { 112 struct timespec64 ts, to = { 113 .tv_sec = timeout->tv_sec, 114 .tv_nsec = timeout->tv_nsec, 115 }; 116 117 ktime_get_ts64(&ts); 118 119 /* timeouts before "now" have already expired */ 120 if (timespec64_compare(&to, &ts) <= 0) 121 return 0; 122 123 ts = timespec64_sub(to, ts); 124 125 return timespec64_to_jiffies(&ts); 126 } 127 128 #endif /* __ETNAVIV_DRV_H__ */ 129