90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (c) 2021 Rockchip Electronics Co., Ltd.
|
|
*/
|
|
#ifndef __SOC_ROCKCHIP_IOMMU_H
|
|
#define __SOC_ROCKCHIP_IOMMU_H
|
|
|
|
struct device;
|
|
struct iommu_domain;
|
|
struct iommu_iotlb_gather;
|
|
struct platform_device;
|
|
|
|
/* 1. dev and pdev is iommu device.
|
|
* 2. store third_iommu data in dev->platform_data.
|
|
*/
|
|
struct third_iommu_ops_wrap {
|
|
int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
|
|
void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
|
|
int (*map)(struct iommu_domain *domain, unsigned long iova,
|
|
phys_addr_t paddr, size_t size, int prot, gfp_t gfp,
|
|
struct device *dev);
|
|
size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
|
|
size_t size, struct iommu_iotlb_gather *iotlb_gather,
|
|
struct device *dev);
|
|
void (*flush_iotlb_all)(struct iommu_domain *domain,
|
|
struct device *dev);
|
|
phys_addr_t (*iova_to_phys)(struct iommu_domain *domain,
|
|
dma_addr_t iova, struct device *dev);
|
|
void (*free)(struct iommu_domain *domain, struct device *dev);
|
|
int (*enable)(struct device *dev);
|
|
int (*disable)(struct device *dev);
|
|
void (*shutdown)(struct platform_device *pdev);
|
|
int (*suspend)(struct device *dev);
|
|
int (*resume)(struct device *dev);
|
|
int (*probe)(struct platform_device *pdev);
|
|
};
|
|
|
|
#if IS_REACHABLE(CONFIG_ROCKCHIP_IOMMU)
|
|
int rockchip_iommu_enable(struct device *dev);
|
|
int rockchip_iommu_disable(struct device *dev);
|
|
int rockchip_pagefault_done(struct device *master_dev);
|
|
void __iomem *rockchip_get_iommu_base(struct device *master_dev, int idx);
|
|
bool rockchip_iommu_is_enabled(struct device *dev);
|
|
void rockchip_iommu_mask_irq(struct device *dev);
|
|
void rockchip_iommu_unmask_irq(struct device *dev);
|
|
int rockchip_iommu_force_reset(struct device *dev);
|
|
#else
|
|
static inline int rockchip_iommu_enable(struct device *dev)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
static inline int rockchip_iommu_disable(struct device *dev)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
static inline int rockchip_pagefault_done(struct device *master_dev)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void __iomem *rockchip_get_iommu_base(struct device *master_dev, int idx)
|
|
{
|
|
return NULL;
|
|
}
|
|
static inline bool rockchip_iommu_is_enabled(struct device *dev)
|
|
{
|
|
return false;
|
|
}
|
|
static inline void rockchip_iommu_mask_irq(struct device *dev)
|
|
{
|
|
}
|
|
static inline void rockchip_iommu_unmask_irq(struct device *dev)
|
|
{
|
|
}
|
|
static inline int rockchip_iommu_force_reset(struct device *dev)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
#endif
|
|
|
|
#if IS_ENABLED(CONFIG_ROCKCHIP_MPP_AV1DEC)
|
|
struct third_iommu_ops_wrap *av1d_iommu_get_ops(void);
|
|
#else
|
|
static inline struct third_iommu_ops_wrap *av1d_iommu_get_ops(void)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
#endif
|