| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (C) 2015-2018 Etnaviv Project |
| */ |
| |
| #ifndef __ETNAVIV_DRV_H__ |
| #define __ETNAVIV_DRV_H__ |
| |
| #include <linux/io.h> |
| #include <linux/list.h> |
| #include <linux/mm_types.h> |
| #include <linux/sizes.h> |
| #include <linux/time64.h> |
| #include <linux/types.h> |
| #include <linux/xarray.h> |
| |
| #include <drm/drm_drv.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_iommu_global; |
| |
| #define ETNAVIV_SOFTPIN_START_ADDRESS SZ_4M /* must be >= SUBALLOC_SIZE */ |
| |
| struct etnaviv_file_private { |
| int id; |
| struct etnaviv_iommu_context *mmu; |
| struct drm_sched_entity sched_entity[ETNA_MAX_PIPES]; |
| }; |
| |
| struct etnaviv_drm_private { |
| int num_gpus; |
| struct etnaviv_gpu *gpu[ETNA_MAX_PIPES]; |
| gfp_t shm_gfp_mask; |
| |
| struct etnaviv_cmdbuf_suballoc *cmdbuf_suballoc; |
| struct etnaviv_iommu_global *mmu_global; |
| |
| struct xarray active_contexts; |
| u32 next_context_id; |
| |
| /* 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_offset(struct drm_gem_object *obj, u64 *offset); |
| struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj); |
| int etnaviv_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map); |
| 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 drm_etnaviv_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, unsigned short id); |
| 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, |
| struct etnaviv_iommu_context *mmu, |
| 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 |
| |
| #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; |
| } |
| |
| /* |
| * Etnaviv timeouts are specified wrt CLOCK_MONOTONIC, not jiffies. |
| * We need to calculate the timeout in terms of number of jiffies |
| * between the specified timeout and the current CLOCK_MONOTONIC time. |
| */ |
| static inline unsigned long etnaviv_timeout_to_jiffies( |
| const struct drm_etnaviv_timespec *timeout) |
| { |
| struct timespec64 ts, to = { |
| .tv_sec = timeout->tv_sec, |
| .tv_nsec = timeout->tv_nsec, |
| }; |
| |
| ktime_get_ts64(&ts); |
| |
| /* timeouts before "now" have already expired */ |
| if (timespec64_compare(&to, &ts) <= 0) |
| return 0; |
| |
| ts = timespec64_sub(to, ts); |
| |
| return timespec64_to_jiffies(&ts); |
| } |
| |
| #endif /* __ETNAVIV_DRV_H__ */ |