am 2c964c0e: am 837e2894: Merge commit \'0bce518ab9e569504bdeefeb3e5e2d86d3382d2b\' into HEAD
* commit '2c964c0e3068496028746e22d42470fc5a275926':
diff --git a/original/uapi/linux/ion.h b/original/uapi/linux/ion.h
index a7d399c..f09e7c1 100644
--- a/original/uapi/linux/ion.h
+++ b/original/uapi/linux/ion.h
@@ -1,5 +1,5 @@
/*
- * include/linux/ion.h
+ * drivers/staging/android/uapi/ion.h
*
* Copyright (C) 2011 Google, Inc.
*
@@ -14,12 +14,14 @@
*
*/
-#ifndef _LINUX_ION_H
-#define _LINUX_ION_H
+#ifndef _UAPI_LINUX_ION_H
+#define _UAPI_LINUX_ION_H
+#include <linux/ioctl.h>
#include <linux/types.h>
-struct ion_handle;
+typedef int ion_user_handle_t;
+
/**
* enum ion_heap_types - list of all possible types of heaps
* @ION_HEAP_TYPE_SYSTEM: memory allocated via vmalloc
@@ -27,6 +29,7 @@
* @ION_HEAP_TYPE_CARVEOUT: memory allocated from a prereserved
* carveout heap, allocations are physically
* contiguous
+ * @ION_HEAP_TYPE_DMA: memory allocated via DMA API
* @ION_NUM_HEAPS: helper for iterating over heaps, a bit mask
* is used to identify the heaps, so only 32
* total heap types are supported
@@ -35,6 +38,8 @@
ION_HEAP_TYPE_SYSTEM,
ION_HEAP_TYPE_SYSTEM_CONTIG,
ION_HEAP_TYPE_CARVEOUT,
+ ION_HEAP_TYPE_CHUNK,
+ ION_HEAP_TYPE_DMA,
ION_HEAP_TYPE_CUSTOM, /* must be last so device specific heaps always
are at the end of this enum */
ION_NUM_HEAPS = 16,
@@ -43,9 +48,12 @@
#define ION_HEAP_SYSTEM_MASK (1 << ION_HEAP_TYPE_SYSTEM)
#define ION_HEAP_SYSTEM_CONTIG_MASK (1 << ION_HEAP_TYPE_SYSTEM_CONTIG)
#define ION_HEAP_CARVEOUT_MASK (1 << ION_HEAP_TYPE_CARVEOUT)
+#define ION_HEAP_TYPE_DMA_MASK (1 << ION_HEAP_TYPE_DMA)
+
+#define ION_NUM_HEAP_IDS sizeof(unsigned int) * 8
/**
- * heap flags - the lower 16 bits are used by core ion, the upper 16
+ * allocation flags - the lower 16 bits are used by core ion, the upper 16
* bits are reserved for use by the heaps themselves.
*/
#define ION_FLAG_CACHED 1 /* mappings of this buffer should be
@@ -56,174 +64,6 @@
at mmap time, if this is set
caches must be managed manually */
-#ifdef __KERNEL__
-struct ion_device;
-struct ion_heap;
-struct ion_mapper;
-struct ion_client;
-struct ion_buffer;
-
-/* This should be removed some day when phys_addr_t's are fully
- plumbed in the kernel, and all instances of ion_phys_addr_t should
- be converted to phys_addr_t. For the time being many kernel interfaces
- do not accept phys_addr_t's that would have to */
-#define ion_phys_addr_t unsigned long
-
-/**
- * struct ion_platform_heap - defines a heap in the given platform
- * @type: type of the heap from ion_heap_type enum
- * @id: unique identifier for heap. When allocating (lower numbers
- * will be allocated from first)
- * @name: used for debug purposes
- * @base: base address of heap in physical memory if applicable
- * @size: size of the heap in bytes if applicable
- *
- * Provided by the board file.
- */
-struct ion_platform_heap {
- enum ion_heap_type type;
- unsigned int id;
- const char *name;
- ion_phys_addr_t base;
- size_t size;
-};
-
-/**
- * struct ion_platform_data - array of platform heaps passed from board file
- * @nr: number of structures in the array
- * @heaps: array of platform_heap structions
- *
- * Provided by the board file in the form of platform data to a platform device.
- */
-struct ion_platform_data {
- int nr;
- struct ion_platform_heap heaps[];
-};
-
-/**
- * ion_reserve() - reserve memory for ion heaps if applicable
- * @data: platform data specifying starting physical address and
- * size
- *
- * Calls memblock reserve to set aside memory for heaps that are
- * located at specific memory addresses or of specfic sizes not
- * managed by the kernel
- */
-void ion_reserve(struct ion_platform_data *data);
-
-/**
- * ion_client_create() - allocate a client and returns it
- * @dev: the global ion device
- * @heap_mask: mask of heaps this client can allocate from
- * @name: used for debugging
- */
-struct ion_client *ion_client_create(struct ion_device *dev,
- unsigned int heap_mask, const char *name);
-
-/**
- * ion_client_destroy() - free's a client and all it's handles
- * @client: the client
- *
- * Free the provided client and all it's resources including
- * any handles it is holding.
- */
-void ion_client_destroy(struct ion_client *client);
-
-/**
- * ion_alloc - allocate ion memory
- * @client: the client
- * @len: size of the allocation
- * @align: requested allocation alignment, lots of hardware blocks have
- * alignment requirements of some kind
- * @heap_mask: mask of heaps to allocate from, if multiple bits are set
- * heaps will be tried in order from lowest to highest order bit
- * @flags: heap flags, the low 16 bits are consumed by ion, the high 16
- * bits are passed on to the respective heap and can be heap
- * custom
- *
- * Allocate memory in one of the heaps provided in heap mask and return
- * an opaque handle to it.
- */
-struct ion_handle *ion_alloc(struct ion_client *client, size_t len,
- size_t align, unsigned int heap_mask,
- unsigned int flags);
-
-/**
- * ion_free - free a handle
- * @client: the client
- * @handle: the handle to free
- *
- * Free the provided handle.
- */
-void ion_free(struct ion_client *client, struct ion_handle *handle);
-
-/**
- * ion_phys - returns the physical address and len of a handle
- * @client: the client
- * @handle: the handle
- * @addr: a pointer to put the address in
- * @len: a pointer to put the length in
- *
- * This function queries the heap for a particular handle to get the
- * handle's physical address. It't output is only correct if
- * a heap returns physically contiguous memory -- in other cases
- * this api should not be implemented -- ion_sg_table should be used
- * instead. Returns -EINVAL if the handle is invalid. This has
- * no implications on the reference counting of the handle --
- * the returned value may not be valid if the caller is not
- * holding a reference.
- */
-int ion_phys(struct ion_client *client, struct ion_handle *handle,
- ion_phys_addr_t *addr, size_t *len);
-
-/**
- * ion_map_dma - return an sg_table describing a handle
- * @client: the client
- * @handle: the handle
- *
- * This function returns the sg_table describing
- * a particular ion handle.
- */
-struct sg_table *ion_sg_table(struct ion_client *client,
- struct ion_handle *handle);
-
-/**
- * ion_map_kernel - create mapping for the given handle
- * @client: the client
- * @handle: handle to map
- *
- * Map the given handle into the kernel and return a kernel address that
- * can be used to access this address.
- */
-void *ion_map_kernel(struct ion_client *client, struct ion_handle *handle);
-
-/**
- * ion_unmap_kernel() - destroy a kernel mapping for a handle
- * @client: the client
- * @handle: handle to unmap
- */
-void ion_unmap_kernel(struct ion_client *client, struct ion_handle *handle);
-
-/**
- * ion_share_dma_buf() - given an ion client, create a dma-buf fd
- * @client: the client
- * @handle: the handle
- */
-int ion_share_dma_buf(struct ion_client *client, struct ion_handle *handle);
-
-/**
- * ion_import_dma_buf() - given an dma-buf fd from the ion exporter get handle
- * @client: the client
- * @fd: the dma-buf fd
- *
- * Given an dma-buf fd that was allocated through ion via ion_share_dma_buf,
- * import that fd and return a handle representing it. If a dma-buf from
- * another exporter is passed in this function will return ERR_PTR(-EINVAL)
- */
-struct ion_handle *ion_import_dma_buf(struct ion_client *client, int fd);
-
-#endif /* __KERNEL__ */
-
/**
* DOC: Ion Userspace API
*
@@ -234,21 +74,21 @@
/**
* struct ion_allocation_data - metadata passed from userspace for allocations
- * @len: size of the allocation
- * @align: required alignment of the allocation
- * @heap_mask: mask of heaps to allocate from
- * @flags: flags passed to heap
- * @handle: pointer that will be populated with a cookie to use to refer
- * to this allocation
+ * @len: size of the allocation
+ * @align: required alignment of the allocation
+ * @heap_id_mask: mask of heap ids to allocate from
+ * @flags: flags passed to heap
+ * @handle: pointer that will be populated with a cookie to use to
+ * refer to this allocation
*
* Provided by userspace as an argument to the ioctl
*/
struct ion_allocation_data {
size_t len;
size_t align;
- unsigned int heap_mask;
+ unsigned int heap_id_mask;
unsigned int flags;
- struct ion_handle *handle;
+ ion_user_handle_t handle;
};
/**
@@ -262,7 +102,7 @@
* provides the file descriptor and the kernel returns the handle.
*/
struct ion_fd_data {
- struct ion_handle *handle;
+ ion_user_handle_t handle;
int fd;
};
@@ -271,7 +111,7 @@
* @handle: a handle
*/
struct ion_handle_data {
- struct ion_handle *handle;
+ ion_user_handle_t handle;
};
/**
@@ -353,4 +193,4 @@
*/
#define ION_IOC_CUSTOM _IOWR(ION_IOC_MAGIC, 6, struct ion_custom_data)
-#endif /* _LINUX_ION_H */
+#endif /* _UAPI_LINUX_ION_H */