162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Host1x context devices 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Copyright (c) 2020, NVIDIA Corporation. 662306a36Sopenharmony_ci */ 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#ifndef __HOST1X_CONTEXT_H 962306a36Sopenharmony_ci#define __HOST1X_CONTEXT_H 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci#include <linux/mutex.h> 1262306a36Sopenharmony_ci#include <linux/refcount.h> 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_cistruct host1x; 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ciextern struct bus_type host1x_context_device_bus_type; 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_cistruct host1x_memory_context_list { 1962306a36Sopenharmony_ci struct mutex lock; 2062306a36Sopenharmony_ci struct host1x_memory_context *devs; 2162306a36Sopenharmony_ci unsigned int len; 2262306a36Sopenharmony_ci}; 2362306a36Sopenharmony_ci 2462306a36Sopenharmony_ci#ifdef CONFIG_IOMMU_API 2562306a36Sopenharmony_ciint host1x_memory_context_list_init(struct host1x *host1x); 2662306a36Sopenharmony_civoid host1x_memory_context_list_free(struct host1x_memory_context_list *cdl); 2762306a36Sopenharmony_ci#else 2862306a36Sopenharmony_cistatic inline int host1x_memory_context_list_init(struct host1x *host1x) 2962306a36Sopenharmony_ci{ 3062306a36Sopenharmony_ci return 0; 3162306a36Sopenharmony_ci} 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_cistatic inline void host1x_memory_context_list_free(struct host1x_memory_context_list *cdl) 3462306a36Sopenharmony_ci{ 3562306a36Sopenharmony_ci} 3662306a36Sopenharmony_ci#endif 3762306a36Sopenharmony_ci 3862306a36Sopenharmony_ci#endif 39