92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __ASM_PLAT_IOVMM_H
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#define __ASM_PLAT_IOVMM_H
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#include <linux/list.h>
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#include <linux/atomic.h>
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#include <linux/spinlock.h>
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#define IEP_IOMMU_COMPATIBLE_NAME "rockchip,iep_mmu"
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#define VIP_IOMMU_COMPATIBLE_NAME "rockchip,vip_mmu"
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#define ISP_IOMMU_COMPATIBLE_NAME "rockchip,isp_mmu"
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#define ISP0_IOMMU_COMPATIBLE_NAME "rockchip,isp0_mmu"
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#define ISP1_IOMMU_COMPATIBLE_NAME "rockchip,isp1_mmu"
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#define VOPB_IOMMU_COMPATIBLE_NAME "rockchip,vopb_mmu"
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#define VOPL_IOMMU_COMPATIBLE_NAME "rockchip,vopl_mmu"
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#define VOP_IOMMU_COMPATIBLE_NAME "rockchip,vop_mmu"
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#define HEVC_IOMMU_COMPATIBLE_NAME "rockchip,hevc_mmu"
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#define VPU_IOMMU_COMPATIBLE_NAME "rockchip,vpu_mmu"
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#define VDEC_IOMMU_COMPATIBLE_NAME "rockchip,vdec_mmu"
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enum rk_iommu_inttype {
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IOMMU_PAGEFAULT,
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IOMMU_BUSERROR,
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IOMMU_FAULT_UNKNOWN,
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IOMMU_FAULTS_NUM
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};
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struct iommu_drvdata;
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/*
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* @itype: type of fault.
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* @pgtable_base: the physical address of page table base. This is 0 if @itype
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* is IOMMU_BUSERROR.
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* @fault_addr: the device (virtual) address that the System MMU tried to
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* translated. This is 0 if @itype is IOMMU_BUSERROR.
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*/
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typedef int (*rockchip_iommu_fault_handler_t)(struct device *dev,
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enum rk_iommu_inttype itype,
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unsigned long pgtable_base,
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unsigned long fault_addr,
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unsigned int statu
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);
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struct scatterlist;
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struct device;
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static inline int rockchip_iovmm_activate(struct device *dev)
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{
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return -ENOSYS;
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}
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static inline void rockchip_iovmm_deactivate(struct device *dev)
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{
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}
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static inline dma_addr_t rockchip_iovmm_map(struct device *dev,
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struct scatterlist *sg, off_t offset, size_t size)
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{
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return -ENOSYS;
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}
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static inline void rockchip_iovmm_unmap(struct device *dev, dma_addr_t iova)
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{
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}
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static inline int rockchip_iovmm_map_oto(struct device *dev, phys_addr_t phys,
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size_t size)
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{
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return -ENOSYS;
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}
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static inline void rockchip_iovmm_unmap_oto(struct device *dev, phys_addr_t phys)
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{
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}
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static inline void rockchip_iovmm_set_fault_handler(struct device *dev,
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rockchip_iommu_fault_handler_t handler)
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{
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}
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static inline int rockchip_iovmm_invalidate_tlb(struct device *dev)
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{
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return -ENOSYS;
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}
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#endif /*__ASM_PLAT_IOVMM_H*/
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