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