diff options
Diffstat (limited to 'include/linux/msm_ion.h')
| -rw-r--r-- | include/linux/msm_ion.h | 380 |
1 files changed, 4 insertions, 376 deletions
diff --git a/include/linux/msm_ion.h b/include/linux/msm_ion.h index c84f67caa3d..04afdf58742 100644 --- a/include/linux/msm_ion.h +++ b/include/linux/msm_ion.h @@ -1,378 +1,6 @@ -#ifndef _LINUX_MSM_ION_H -#define _LINUX_MSM_ION_H +#ifndef __LINUX_MSM_ION_H__ +#define __LINUX_MSM_ION_H__ -#include <uapi/linux/msm_ion.h> +#include "../../drivers/staging/android/ion/msm/msm_ion.h" -enum ion_permission_type { - IPT_TYPE_MM_CARVEOUT = 0, - IPT_TYPE_MFC_SHAREDMEM = 1, - IPT_TYPE_MDP_WRITEBACK = 2, -}; - -/* - * 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 - * @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); - 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); -}; - -/** - * 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, ion_phys_addr_t *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, ion_phys_addr_t *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 +#endif /* __LINUX_MSM_ION_H__ */ |