forked from rubenslte/android_kernel_samsung_msm8226
Francescodario Cuzzocrea
85baa390bf
* Samsung Package Version: G800HXXU1CRJ1
* CAF Tag: LA.BF.1.1.3-00110-8x26.0
580 lines
16 KiB
C
580 lines
16 KiB
C
#ifndef _LINUX_MSM_ION_H
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#define _LINUX_MSM_ION_H
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#include <linux/ion.h>
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enum msm_ion_heap_types {
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ION_HEAP_TYPE_MSM_START = ION_HEAP_TYPE_CUSTOM + 1,
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ION_HEAP_TYPE_IOMMUCA = ION_HEAP_TYPE_MSM_START,
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ION_HEAP_TYPE_DMA,
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ION_HEAP_TYPE_CP,
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ION_HEAP_TYPE_SECURE_DMA,
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ION_HEAP_TYPE_REMOVED,
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/*
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* if you add a heap type here you should also add it to
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* heap_types_info[] in msm_ion.c
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*/
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};
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/**
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* These are the only ids that should be used for Ion heap ids.
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* The ids listed are the order in which allocation will be attempted
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* if specified. Don't swap the order of heap ids unless you know what
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* you are doing!
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* Id's are spaced by purpose to allow new Id's to be inserted in-between (for
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* possible fallbacks)
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*/
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enum ion_heap_ids {
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INVALID_HEAP_ID = -1,
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ION_CP_MM_HEAP_ID = 8,
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ION_CP_MFC_HEAP_ID = 12,
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ION_CP_WB_HEAP_ID = 16, /* 8660 only */
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ION_IOMMUCA_HEAP_ID = 20,
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ION_SYSTEM_CONTIG_HEAP_ID = 21,
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ION_ADSP_HEAP_ID = 22,
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ION_PIL1_HEAP_ID = 23, /* Currently used for other PIL images */
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ION_SF_HEAP_ID = 24,
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ION_SYSTEM_HEAP_ID = 25,
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ION_PIL2_HEAP_ID = 26, /* Currently used for modem firmware images */
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ION_QSECOM_HEAP_ID = 27,
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ION_AUDIO_HEAP_ID = 28,
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ION_MM_FIRMWARE_HEAP_ID = 29,
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ION_CAMERA_HEAP_ID = 30,
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ION_HEAP_ID_RESERVED = 31 /** Bit reserved for ION_FLAG_SECURE flag */
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};
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/*
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* The IOMMU heap is deprecated! Here are some aliases for backwards
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* compatibility:
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*/
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#define ION_IOMMU_HEAP_ID ION_SYSTEM_HEAP_ID
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#define ION_HEAP_TYPE_IOMMU ION_HEAP_TYPE_SYSTEM
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enum ion_fixed_position {
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NOT_FIXED,
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FIXED_LOW,
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FIXED_MIDDLE,
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FIXED_HIGH,
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};
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enum cp_mem_usage {
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VIDEO_BITSTREAM = 0x1,
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VIDEO_PIXEL = 0x2,
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VIDEO_NONPIXEL = 0x3,
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MAX_USAGE = 0x4,
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UNKNOWN = 0x7FFFFFFF,
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};
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#define ION_HEAP_CP_MASK (1 << ION_HEAP_TYPE_CP)
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#define ION_HEAP_TYPE_DMA_MASK (1 << ION_HEAP_TYPE_DMA)
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/**
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* Flag to use when allocating to indicate that a heap is secure.
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*/
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#define ION_FLAG_SECURE (1 << ION_HEAP_ID_RESERVED)
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/**
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* Flag for clients to force contiguous memort allocation
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*
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* Use of this flag is carefully monitored!
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*/
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#define ION_FLAG_FORCE_CONTIGUOUS (1 << 30)
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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 (1 << 16)
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/**
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* Deprecated! Please use the corresponding ION_FLAG_*
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*/
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#define ION_SECURE ION_FLAG_SECURE
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#define ION_FORCE_CONTIGUOUS ION_FLAG_FORCE_CONTIGUOUS
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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) (1 << (bit))
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#define ION_ADSP_HEAP_NAME "adsp"
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#define ION_SYSTEM_HEAP_NAME "system"
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#define ION_VMALLOC_HEAP_NAME ION_SYSTEM_HEAP_NAME
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#define ION_KMALLOC_HEAP_NAME "kmalloc"
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#define ION_AUDIO_HEAP_NAME "audio"
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#define ION_SF_HEAP_NAME "sf"
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#define ION_MM_HEAP_NAME "mm"
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#define ION_CAMERA_HEAP_NAME "camera_preview"
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#define ION_IOMMU_HEAP_NAME "iommu"
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#define ION_IOMMUCA_HEAP_NAME "iommuca"
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#define ION_MFC_HEAP_NAME "mfc"
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#define ION_WB_HEAP_NAME "wb"
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#define ION_MM_FIRMWARE_HEAP_NAME "mm_fw"
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#define ION_PIL1_HEAP_NAME "pil_1"
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#define ION_PIL2_HEAP_NAME "pil_2"
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#define ION_QSECOM_HEAP_NAME "qsecom"
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#define ION_SET_CACHED(__cache) (__cache | ION_FLAG_CACHED)
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#define ION_SET_UNCACHED(__cache) (__cache & ~ION_FLAG_CACHED)
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#define ION_IS_CACHED(__flags) ((__flags) & ION_FLAG_CACHED)
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#ifdef __KERNEL__
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/*
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* This flag allows clients when mapping into the IOMMU to specify to
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* defer un-mapping from the IOMMU until the buffer memory is freed.
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*/
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#define ION_IOMMU_UNMAP_DELAYED 1
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/*
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* This flag allows clients to defer unsecuring a buffer until the buffer
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* is actually freed.
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*/
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#define ION_UNSECURE_DELAYED 1
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/**
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* struct ion_cp_heap_pdata - defines a content protection heap in the given
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* platform
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* @permission_type: Memory ID used to identify the memory to TZ
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* @align: Alignment requirement for the memory
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* @secure_base: Base address for securing the heap.
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* Note: This might be different from actual base address
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* of this heap in the case of a shared heap.
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* @secure_size: Memory size for securing the heap.
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* Note: This might be different from actual size
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* of this heap in the case of a shared heap.
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* @fixed_position If nonzero, position in the fixed area.
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* @iommu_map_all: Indicates whether we should map whole heap into IOMMU.
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* @iommu_2x_map_domain: Indicates the domain to use for overmapping.
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* @request_region: function to be called when the number of allocations
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* goes from 0 -> 1
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* @release_region: function to be called when the number of allocations
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* goes from 1 -> 0
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* @setup_region: function to be called upon ion registration
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* @memory_type:Memory type used for the heap
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* @allow_nonsecure_alloc: allow non-secure allocations from this heap. For
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* secure heaps, this flag must be set so allow non-secure
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* allocations. For non-secure heaps, this flag is ignored.
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*
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*/
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struct ion_cp_heap_pdata {
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enum ion_permission_type permission_type;
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unsigned int align;
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ion_phys_addr_t secure_base; /* Base addr used when heap is shared */
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size_t secure_size; /* Size used for securing heap when heap is shared*/
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int is_cma;
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enum ion_fixed_position fixed_position;
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int iommu_map_all;
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int iommu_2x_map_domain;
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int (*request_region)(void *);
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int (*release_region)(void *);
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void *(*setup_region)(void);
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enum ion_memory_types memory_type;
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int allow_nonsecure_alloc;
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};
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/**
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* struct ion_co_heap_pdata - defines a carveout heap in the given platform
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* @adjacent_mem_id: Id of heap that this heap must be adjacent to.
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* @align: Alignment requirement for the memory
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* @fixed_position If nonzero, position in the fixed area.
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* @request_region: function to be called when the number of allocations
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* goes from 0 -> 1
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* @release_region: function to be called when the number of allocations
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* goes from 1 -> 0
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* @setup_region: function to be called upon ion registration
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* @memory_type:Memory type used for the heap
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*
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*/
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struct ion_co_heap_pdata {
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int adjacent_mem_id;
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unsigned int align;
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enum ion_fixed_position fixed_position;
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int (*request_region)(void *);
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int (*release_region)(void *);
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void *(*setup_region)(void);
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enum ion_memory_types memory_type;
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};
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/*
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* struct ion_cma_pdata - extra data for CMA regions
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* @default_prefetch_size - default size to use for prefetching
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*/
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struct ion_cma_pdata {
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unsigned long default_prefetch_size;
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};
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#ifdef CONFIG_ION
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/**
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* msm_ion_client_create - allocate a client using the ion_device specified in
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* drivers/gpu/ion/msm/msm_ion.c
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*
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* heap_mask and name are the same as ion_client_create, return values
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* are the same as ion_client_create.
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*/
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struct ion_client *msm_ion_client_create(unsigned int heap_mask,
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const char *name);
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/**
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* ion_handle_get_flags - get the flags for a given handle
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*
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* @client - client who allocated the handle
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* @handle - handle to get the flags
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* @flags - pointer to store the flags
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*
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* Gets the current flags for a handle. These flags indicate various options
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* of the buffer (caching, security, etc.)
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*/
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int ion_handle_get_flags(struct ion_client *client, struct ion_handle *handle,
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unsigned long *flags);
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/**
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* ion_map_iommu - map the given handle into an iommu
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*
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* @client - client who allocated the handle
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* @handle - handle to map
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* @domain_num - domain number to map to
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* @partition_num - partition number to allocate iova from
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* @align - alignment for the iova
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* @iova_length - length of iova to map. If the iova length is
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* greater than the handle length, the remaining
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* address space will be mapped to a dummy buffer.
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* @iova - pointer to store the iova address
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* @buffer_size - pointer to store the size of the buffer
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* @flags - flags for options to map
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* @iommu_flags - flags specific to the iommu.
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*
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* Maps the handle into the iova space specified via domain number. Iova
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* will be allocated from the partition specified via partition_num.
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* Returns 0 on success, negative value on error.
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*/
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int ion_map_iommu(struct ion_client *client, struct ion_handle *handle,
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int domain_num, int partition_num, unsigned long align,
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unsigned long iova_length, unsigned long *iova,
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unsigned long *buffer_size,
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unsigned long flags, unsigned long iommu_flags);
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/**
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* ion_handle_get_size - get the allocated size of a given handle
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*
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* @client - client who allocated the handle
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* @handle - handle to get the size
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* @size - pointer to store the size
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*
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* gives the allocated size of a handle. returns 0 on success, negative
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* value on error
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*
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* NOTE: This is intended to be used only to get a size to pass to map_iommu.
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* You should *NOT* rely on this for any other usage.
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*/
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int ion_handle_get_size(struct ion_client *client, struct ion_handle *handle,
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unsigned long *size);
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/**
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* ion_unmap_iommu - unmap the handle from an iommu
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*
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* @client - client who allocated the handle
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* @handle - handle to unmap
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* @domain_num - domain to unmap from
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* @partition_num - partition to unmap from
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*
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* Decrement the reference count on the iommu mapping. If the count is
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* 0, the mapping will be removed from the iommu.
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*/
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void ion_unmap_iommu(struct ion_client *client, struct ion_handle *handle,
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int domain_num, int partition_num);
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/**
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* ion_secure_heap - secure a heap
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*
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* @client - a client that has allocated from the heap heap_id
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* @heap_id - heap id to secure.
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* @version - version of content protection
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* @data - extra data needed for protection
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*
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* Secure a heap
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* Returns 0 on success
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*/
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int ion_secure_heap(struct ion_device *dev, int heap_id, int version,
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void *data);
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/**
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* ion_unsecure_heap - un-secure a heap
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*
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* @client - a client that has allocated from the heap heap_id
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* @heap_id - heap id to un-secure.
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* @version - version of content protection
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* @data - extra data needed for protection
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*
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* Un-secure a heap
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* Returns 0 on success
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*/
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int ion_unsecure_heap(struct ion_device *dev, int heap_id, int version,
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void *data);
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/**
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* msm_ion_do_cache_op - do cache operations.
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*
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* @client - pointer to ION client.
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* @handle - pointer to buffer handle.
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* @vaddr - virtual address to operate on.
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* @len - Length of data to do cache operation on.
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* @cmd - Cache operation to perform:
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* ION_IOC_CLEAN_CACHES
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* ION_IOC_INV_CACHES
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* ION_IOC_CLEAN_INV_CACHES
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*
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* Returns 0 on success
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*/
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int msm_ion_do_cache_op(struct ion_client *client, struct ion_handle *handle,
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void *vaddr, unsigned long len, unsigned int cmd);
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/**
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* msm_ion_secure_heap - secure a heap. Wrapper around ion_secure_heap.
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*
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* @heap_id - heap id to secure.
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*
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* Secure a heap
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* Returns 0 on success
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*/
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int msm_ion_secure_heap(int heap_id);
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/**
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* msm_ion_unsecure_heap - unsecure a heap. Wrapper around ion_unsecure_heap.
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*
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* @heap_id - heap id to secure.
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*
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* Un-secure a heap
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* Returns 0 on success
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*/
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int msm_ion_unsecure_heap(int heap_id);
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/**
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* msm_ion_secure_heap_2_0 - secure a heap using 2.0 APIs
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* Wrapper around ion_secure_heap.
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*
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* @heap_id - heap id to secure.
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* @usage - usage hint to TZ
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*
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* Secure a heap
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* Returns 0 on success
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*/
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int msm_ion_secure_heap_2_0(int heap_id, enum cp_mem_usage usage);
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/**
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* msm_ion_unsecure_heap - unsecure a heap secured with 3.0 APIs.
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* Wrapper around ion_unsecure_heap.
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*
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* @heap_id - heap id to secure.
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* @usage - usage hint to TZ
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*
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* Un-secure a heap
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* Returns 0 on success
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*/
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int msm_ion_unsecure_heap_2_0(int heap_id, enum cp_mem_usage usage);
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/**
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* msm_ion_secure_buffer - secure an individual buffer
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*
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* @client - client who has access to the buffer
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* @handle - buffer to secure
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* @usage - usage hint to TZ
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* @flags - flags for the securing
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*/
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int msm_ion_secure_buffer(struct ion_client *client, struct ion_handle *handle,
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enum cp_mem_usage usage, int flags);
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/**
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* msm_ion_unsecure_buffer - unsecure an individual buffer
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*
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* @client - client who has access to the buffer
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* @handle - buffer to secure
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*/
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int msm_ion_unsecure_buffer(struct ion_client *client,
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struct ion_handle *handle);
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#else
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static inline struct ion_client *msm_ion_client_create(unsigned int heap_mask,
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const char *name)
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{
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return ERR_PTR(-ENODEV);
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}
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static inline int ion_map_iommu(struct ion_client *client,
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struct ion_handle *handle, int domain_num,
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int partition_num, unsigned long align,
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unsigned long iova_length, unsigned long *iova,
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unsigned long *buffer_size,
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unsigned long flags,
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unsigned long iommu_flags)
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{
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return -ENODEV;
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}
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static inline int ion_handle_get_size(struct ion_client *client,
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struct ion_handle *handle, unsigned long *size)
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{
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return -ENODEV;
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}
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static inline void ion_unmap_iommu(struct ion_client *client,
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struct ion_handle *handle, int domain_num,
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int partition_num)
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{
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return;
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}
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static inline int ion_secure_heap(struct ion_device *dev, int heap_id,
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int version, void *data)
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{
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return -ENODEV;
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}
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static inline int ion_unsecure_heap(struct ion_device *dev, int heap_id,
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int version, void *data)
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{
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return -ENODEV;
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}
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static inline void ion_mark_dangling_buffers_locked(struct ion_device *dev)
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{
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}
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static inline int msm_ion_do_cache_op(struct ion_client *client,
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struct ion_handle *handle, void *vaddr,
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unsigned long len, unsigned int cmd)
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{
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return -ENODEV;
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}
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static inline int msm_ion_secure_heap(int heap_id)
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{
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return -ENODEV;
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}
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static inline int msm_ion_unsecure_heap(int heap_id)
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{
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return -ENODEV;
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}
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static inline int msm_ion_secure_heap_2_0(int heap_id, enum cp_mem_usage usage)
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{
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return -ENODEV;
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}
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static inline int msm_ion_unsecure_heap_2_0(int heap_id,
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enum cp_mem_usage usage)
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{
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return -ENODEV;
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}
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static inline int msm_ion_secure_buffer(struct ion_client *client,
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struct ion_handle *handle,
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enum cp_mem_usage usage,
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int flags)
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{
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return -ENODEV;
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}
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static inline int msm_ion_unsecure_buffer(struct ion_client *client,
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struct ion_handle *handle)
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{
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return -ENODEV;
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}
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#endif /* CONFIG_ION */
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#endif /* __KERNEL */
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/* struct ion_flush_data - data passed to ion for flushing caches
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*
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* @handle: handle with data to flush
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* @fd: fd to flush
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* @vaddr: userspace virtual address mapped with mmap
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* @offset: offset into the handle to flush
|
|
* @length: length of handle to flush
|
|
*
|
|
* Performs cache operations on the handle. If p is the start address
|
|
* of the handle, p + offset through p + offset + length will have
|
|
* the cache operations performed
|
|
*/
|
|
struct ion_flush_data {
|
|
struct ion_handle *handle;
|
|
int fd;
|
|
void *vaddr;
|
|
unsigned int offset;
|
|
unsigned int length;
|
|
};
|
|
|
|
struct ion_prefetch_data {
|
|
int heap_id;
|
|
unsigned long len;
|
|
};
|
|
|
|
#if defined(CONFIG_MACH_KLTE_JPN) || defined(CONFIG_MACH_HLTEDCM) || defined(CONFIG_MACH_HLTEKDI) || defined(CONFIG_MACH_JS01LTEDCM) || defined(CONFIG_DTCP_ION_PHYS)
|
|
/* struct ion_buffer_data
|
|
*
|
|
* @handle: handle for the buffer being queried
|
|
* @paddr: The physical address of the buffer referenced by the handle
|
|
* @length: The length of the buffer referenced by the handle
|
|
*
|
|
* Gets the physicial address of the given handle
|
|
*/
|
|
struct ion_buffer_data {
|
|
struct ion_handle *handle;
|
|
unsigned long paddr;
|
|
unsigned int length;
|
|
};
|
|
#endif
|
|
|
|
#define ION_IOC_MSM_MAGIC 'M'
|
|
|
|
/**
|
|
* DOC: ION_IOC_CLEAN_CACHES - clean the caches
|
|
*
|
|
* Clean the caches of the handle specified.
|
|
*/
|
|
#define ION_IOC_CLEAN_CACHES _IOWR(ION_IOC_MSM_MAGIC, 0, \
|
|
struct ion_flush_data)
|
|
/**
|
|
* DOC: ION_IOC_INV_CACHES - invalidate the caches
|
|
*
|
|
* Invalidate the caches of the handle specified.
|
|
*/
|
|
#define ION_IOC_INV_CACHES _IOWR(ION_IOC_MSM_MAGIC, 1, \
|
|
struct ion_flush_data)
|
|
/**
|
|
* DOC: ION_IOC_CLEAN_INV_CACHES - clean and invalidate the caches
|
|
*
|
|
* Clean and invalidate the caches of the handle specified.
|
|
*/
|
|
#define ION_IOC_CLEAN_INV_CACHES _IOWR(ION_IOC_MSM_MAGIC, 2, \
|
|
struct ion_flush_data)
|
|
|
|
#define ION_IOC_PREFETCH _IOWR(ION_IOC_MSM_MAGIC, 3, \
|
|
struct ion_prefetch_data)
|
|
|
|
#define ION_IOC_DRAIN _IOWR(ION_IOC_MSM_MAGIC, 4, \
|
|
struct ion_prefetch_data)
|
|
|
|
#if defined(CONFIG_MACH_KLTE_JPN) || defined(CONFIG_MACH_HLTEDCM) || defined(CONFIG_MACH_HLTEKDI) || defined(CONFIG_MACH_JS01LTEDCM) || defined(CONFIG_DTCP_ION_PHYS)
|
|
/**
|
|
* DOC: ION_IOC_GET_PHYS - get the physical address of the handle
|
|
*
|
|
* Gets the physicial address of the given handle
|
|
*/
|
|
#define ION_IOC_GET_PHYS _IOWR(ION_IOC_MSM_MAGIC, 5, \
|
|
struct ion_buffer_data)
|
|
|
|
#endif
|
|
|
|
#endif
|