97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Copyright (c) 2018-2021, The Linux Foundation. All rights reserved.
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* Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef _UAPI_LINUX_MSM_ION_H
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#define _UAPI_LINUX_MSM_ION_H
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#include <linux/types.h>
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#include <linux/msm_ion_ids.h>
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/**
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* TARGET_ION_ABI_VERSION can be used by user space clients to ensure that at
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* compile time only their code which uses the appropriate ION APIs for
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* this kernel is included.
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*/
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#define TARGET_ION_ABI_VERSION 3
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enum msm_ion_heap_types {
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ION_HEAP_TYPE_MSM_START = 16,
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ION_HEAP_TYPE_SECURE_DMA = ION_HEAP_TYPE_MSM_START,
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ION_HEAP_TYPE_SYSTEM_SECURE,
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ION_HEAP_TYPE_HYP_CMA,
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ION_HEAP_TYPE_MSM_CARVEOUT,
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ION_HEAP_TYPE_SECURE_CARVEOUT,
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ION_HEAP_TYPE_MSM_SYSTEM,
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};
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/**
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* Flags to be used when allocating from the secure heap for
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* content protection
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*/
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#define ION_FLAG_CP_TRUSTED_VM ION_BIT(15)
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/* ION_FLAG_POOL_FORCE_ALLOC uses ION_BIT(16) */
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#define ION_FLAG_CP_TOUCH ION_BIT(17)
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#define ION_FLAG_CP_BITSTREAM ION_BIT(18)
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#define ION_FLAG_CP_PIXEL ION_BIT(19)
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#define ION_FLAG_CP_NON_PIXEL ION_BIT(20)
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#define ION_FLAG_CP_CAMERA ION_BIT(21)
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#define ION_FLAG_CP_HLOS ION_BIT(22)
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#define ION_FLAG_CP_SPSS_SP ION_BIT(23)
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#define ION_FLAG_CP_SPSS_SP_SHARED ION_BIT(24)
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#define ION_FLAG_CP_SEC_DISPLAY ION_BIT(25)
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#define ION_FLAG_CP_APP ION_BIT(26)
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#define ION_FLAG_CP_CAMERA_PREVIEW ION_BIT(27)
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/* ION_FLAG_ALLOW_NON_CONTIG uses ION_BIT(28) */
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#define ION_FLAG_CP_CDSP ION_BIT(29)
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#define ION_FLAG_CP_SPSS_HLOS_SHARED ION_BIT(30)
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#define ION_FLAGS_CP_MASK 0x6FFE8000
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/**
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* Flag to allow non continguous allocation of memory from secure
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* heap
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*/
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#define ION_FLAG_ALLOW_NON_CONTIG ION_BIT(28)
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/**
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* Flag to use when allocating to indicate that a heap is secure.
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* Do NOT use BIT macro since it is defined in #ifdef __KERNEL__
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*/
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#define ION_FLAG_SECURE ION_BIT(31)
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/*
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* Used in conjunction with heap which pool memory to force an allocation
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* to come from the page allocator directly instead of from the pool allocation
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*/
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#define ION_FLAG_POOL_FORCE_ALLOC ION_BIT(16)
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/**
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* Macro should be used with ion_heap_ids defined above.
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*/
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#define ION_HEAP(bit) bit
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#define ION_IOC_MSM_MAGIC 'M'
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struct ion_prefetch_regions {
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__u64 sizes;
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__u32 vmid;
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__u32 nr_sizes;
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};
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struct ion_prefetch_data {
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__u64 len;
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__u64 regions;
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__u32 heap_id;
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__u32 nr_regions;
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};
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#define ION_IOC_PREFETCH _IOWR(ION_IOC_MSM_MAGIC, 3, \
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struct ion_prefetch_data)
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#define ION_IOC_DRAIN _IOWR(ION_IOC_MSM_MAGIC, 4, \
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struct ion_prefetch_data)
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#endif /* _UAPI_LINUX_MSM_ION_H */
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