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/* SPDX-License-Identifier: GPL-2.0 */
* Copyright (C) 2015-2018 Etnaviv Project
#ifndef __ETNAVIV_DRV_H__
#define __ETNAVIV_DRV_H__
#include <linux/list.h>
#include <linux/mm_types.h>
#include <linux/sizes.h>
#include <linux/time64.h>
#include <linux/types.h>
#include <drm/drm_fb_helper.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;
struct etnaviv_file_private {
struct etnaviv_iommu_context *mmu;
struct drm_sched_entity sched_entity[ETNA_MAX_PIPES];
struct etnaviv_drm_private {
int num_gpus;
struct device_dma_parameters dma_parms;
struct etnaviv_gpu *gpu[ETNA_MAX_PIPES];
struct etnaviv_cmdbuf_suballoc *cmdbuf_suballoc;
struct etnaviv_iommu_global *mmu_global;
/* 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(struct file *filp, struct vm_area_struct *vma);
vm_fault_t etnaviv_gem_fault(struct vm_fault *vmf);
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);
void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj);
void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
int etnaviv_gem_prime_mmap(struct drm_gem_object *obj,
struct vm_area_struct *vma);
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 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);
void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv,
struct seq_file *m);
#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 timespec *timeout)
struct timespec64 ts, to;
to = timespec_to_timespec64(*timeout);
/* 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__ */