1f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/* 2f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * include/linux/ion.h 3f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 4f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Copyright (C) 2011 Google, Inc. 5f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Copyright (c) 2011-2012, The Linux Foundation. All rights reserved. 6f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 7f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * This software is licensed under the terms of the GNU General Public 8f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * License version 2, as published by the Free Software Foundation, and 9f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * may be copied, distributed, and modified under those terms. 10f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 11f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * This program is distributed in the hope that it will be useful, 12f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * but WITHOUT ANY WARRANTY; without even the implied warranty of 13f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * GNU General Public License for more details. 15f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 16f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 17f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 18f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#ifndef _LINUX_ION_H 19f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define _LINUX_ION_H 20f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 21f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#include <linux/ioctl.h> 22f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#include <linux/types.h> 23f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 24f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_handle; 25f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 26f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * enum ion_heap_types - list of all possible types of heaps 27f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @ION_HEAP_TYPE_SYSTEM: memory allocated via vmalloc 28f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @ION_HEAP_TYPE_SYSTEM_CONTIG: memory allocated via kmalloc 29f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @ION_HEAP_TYPE_CARVEOUT: memory allocated from a prereserved 30f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * carveout heap, allocations are physically 31f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * contiguous 32f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @ION_HEAP_TYPE_IOMMU: IOMMU memory 33f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @ION_HEAP_TYPE_CP: memory allocated from a prereserved 34f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * carveout heap, allocations are physically 35f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * contiguous. Used for content protection. 36f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @ION_HEAP_TYPE_DMA: memory allocated via DMA API 37677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev * @ION_NUM_HEAPS: helper for iterating over heaps, a bit mask 38677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev * is used to identify the heaps, so only 32 39677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev * total heap types are supported 40f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 41f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevenum ion_heap_type { 42f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev ION_HEAP_TYPE_SYSTEM, 43f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev ION_HEAP_TYPE_SYSTEM_CONTIG, 44f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev ION_HEAP_TYPE_CARVEOUT, 45f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev ION_HEAP_TYPE_DMA, 46f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev ION_HEAP_TYPE_CUSTOM, /* must be last so device specific heaps always 47f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev are at the end of this enum */ 48677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev ION_NUM_HEAPS = 16, 49f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev}; 50f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 51f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_HEAP_SYSTEM_MASK (1 << ION_HEAP_TYPE_SYSTEM) 52f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_HEAP_SYSTEM_CONTIG_MASK (1 << ION_HEAP_TYPE_SYSTEM_CONTIG) 53f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_HEAP_CARVEOUT_MASK (1 << ION_HEAP_TYPE_CARVEOUT) 54f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_HEAP_TYPE_DMA_MASK (1 << ION_HEAP_TYPE_DMA) 55f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 56f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 57f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * heap flags - the lower 16 bits are used by core ion, the upper 16 58f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * bits are reserved for use by the heaps themselves. 59f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 60f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_FLAG_CACHED 1 /* mappings of this buffer should be 61f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev cached, ion will do cache 62f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev maintenance when the buffer is 63f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev mapped for dma */ 64f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 65f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#ifdef __KERNEL__ 66f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#include <linux/err.h> 67f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#include <mach/ion.h> 68f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_device; 69f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_heap; 70f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_mapper; 71f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_client; 72f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_buffer; 73f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 74f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/* This should be removed some day when phys_addr_t's are fully 75f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev plumbed in the kernel, and all instances of ion_phys_addr_t should 76f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev be converted to phys_addr_t. For the time being many kernel interfaces 77f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev do not accept phys_addr_t's that would have to */ 78f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ion_phys_addr_t unsigned long 79f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ion_virt_addr_t unsigned long 80f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 81f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 82f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * struct ion_platform_heap - defines a heap in the given platform 83f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @type: type of the heap from ion_heap_type enum 84f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @id: unique identifier for heap. When allocating (lower numbers 85f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * will be allocated from first) 86f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @name: used for debug purposes 87f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @base: base address of heap in physical memory if applicable 88f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @size: size of the heap in bytes if applicable 89f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @memory_type:Memory type used for the heap 90f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @has_outer_cache: set to 1 if outer cache is used, 0 otherwise. 91f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @extra_data: Extra data specific to each heap type 92f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @priv: heap private data 93f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 94f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_platform_heap { 95f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev enum ion_heap_type type; 96f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned int id; 97f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev const char *name; 98f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev ion_phys_addr_t base; 99f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev size_t size; 100f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev enum ion_memory_types memory_type; 101f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned int has_outer_cache; 102f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev void *extra_data; 103f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev void *priv; 104f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev}; 105f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 106f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 107f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * struct ion_platform_data - array of platform heaps passed from board file 108f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @has_outer_cache: set to 1 if outer cache is used, 0 otherwise. 109f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @nr: number of structures in the array 110f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @request_region: function to be called when the number of allocations goes 111f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * from 0 -> 1 112f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @release_region: function to be called when the number of allocations goes 113f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * from 1 -> 0 114f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @setup_region: function to be called upon ion registration 115f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @heaps: array of platform_heap structions 116f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 117f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Provided by the board file in the form of platform data to a platform device. 118f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 119f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_platform_data { 120f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned int has_outer_cache; 121f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev int nr; 122f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev int (*request_region)(void *); 123f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev int (*release_region)(void *); 124f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev void *(*setup_region)(void); 125f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_platform_heap *heaps; 126f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev}; 127f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 128f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#ifdef CONFIG_ION 129f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 130f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 131f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_reserve() - reserve memory for ion heaps if applicable 132f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @data: platform data specifying starting physical address and 133f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * size 134f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 135f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Calls memblock reserve to set aside memory for heaps that are 136f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * located at specific memory addresses or of specfic sizes not 137f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * managed by the kernel 138f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 139f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevvoid ion_reserve(struct ion_platform_data *data); 140f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 141f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 142f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_client_create() - allocate a client and returns it 143f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @dev: the global ion device 144f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @heap_mask: mask of heaps this client can allocate from 145f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @name: used for debugging 146f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 147f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_client *ion_client_create(struct ion_device *dev, 148f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned int heap_mask, const char *name); 149f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 150f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 151f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * msm_ion_client_create - allocate a client using the ion_device specified in 152f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * drivers/gpu/ion/msm/msm_ion.c 153f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 154f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * heap_mask and name are the same as ion_client_create, return values 155f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * are the same as ion_client_create. 156f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 157f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 158f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_client *msm_ion_client_create(unsigned int heap_mask, 159f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev const char *name); 160f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 161f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 162f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_client_destroy() - free's a client and all it's handles 163f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client: the client 164f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 165f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Free the provided client and all it's resources including 166f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * any handles it is holding. 167f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 168f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevvoid ion_client_destroy(struct ion_client *client); 169f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 170f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 171f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_alloc - allocate ion memory 172f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client: the client 173f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @len: size of the allocation 174f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @align: requested allocation alignment, lots of hardware blocks have 175f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * alignment requirements of some kind 176f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @heap_mask: mask of heaps to allocate from, if multiple bits are set 177f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * heaps will be tried in order from lowest to highest order bit 178f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @flags: heap flags, the low 16 bits are consumed by ion, the high 16 179f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * bits are passed on to the respective heap and can be heap 180f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * custom 181f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 182f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Allocate memory in one of the heaps provided in heap mask and return 183f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * an opaque handle to it. 184f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 185f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_handle *ion_alloc(struct ion_client *client, size_t len, 186f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev size_t align, unsigned int heap_mask, 187f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned int flags); 188f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 189f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 190f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_free - free a handle 191f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client: the client 192f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle: the handle to free 193f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 194f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Free the provided handle. 195f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 196f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevvoid ion_free(struct ion_client *client, struct ion_handle *handle); 197f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 198f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 199f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_phys - returns the physical address and len of a handle 200f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client: the client 201f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle: the handle 202f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @addr: a pointer to put the address in 203f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @len: a pointer to put the length in 204f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 205f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * This function queries the heap for a particular handle to get the 206f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * handle's physical address. It't output is only correct if 207f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * a heap returns physically contiguous memory -- in other cases 208f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * this api should not be implemented -- ion_sg_table should be used 209f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * instead. Returns -EINVAL if the handle is invalid. This has 210f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * no implications on the reference counting of the handle -- 211f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * the returned value may not be valid if the caller is not 212f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * holding a reference. 213f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 214f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevint ion_phys(struct ion_client *client, struct ion_handle *handle, 215f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev ion_phys_addr_t *addr, size_t *len); 216f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 217f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 218f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_map_dma - return an sg_table describing a handle 219f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client: the client 220f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle: the handle 221f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 222f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * This function returns the sg_table describing 223f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * a particular ion handle. 224f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 225f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct sg_table *ion_sg_table(struct ion_client *client, 226f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle); 227f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 228f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 229f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_map_kernel - create mapping for the given handle 230f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client: the client 231f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle: handle to map 232f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @flags: flags for this mapping 233f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 234f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Map the given handle into the kernel and return a kernel address that 235f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * can be used to access this address. If no flags are specified, this 236f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * will return a non-secure uncached mapping. 237f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 238f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevvoid *ion_map_kernel(struct ion_client *client, struct ion_handle *handle); 239f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 240f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 241f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_unmap_kernel() - destroy a kernel mapping for a handle 242f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client: the client 243f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle: handle to unmap 244f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 245f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevvoid ion_unmap_kernel(struct ion_client *client, struct ion_handle *handle); 246f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 247f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 248f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_share_dma_buf() - given an ion client, create a dma-buf fd 249f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client: the client 250f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle: the handle 251f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 252f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevint ion_share_dma_buf(struct ion_client *client, struct ion_handle *handle); 253f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 254f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 255f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_import_dma_buf() - given an dma-buf fd from the ion exporter get handle 256f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client: the client 257f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @fd: the dma-buf fd 258f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 259f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Given an dma-buf fd that was allocated through ion via ion_share_dma_buf, 260f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * import that fd and return a handle representing it. If a dma-buf from 261f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * another exporter is passed in this function will return ERR_PTR(-EINVAL) 262f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 263f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_handle *ion_import_dma_buf(struct ion_client *client, int fd); 264f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 265f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 266f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_handle_get_flags - get the flags for a given handle 267f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 268f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client - client who allocated the handle 269f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle - handle to get the flags 270f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @flags - pointer to store the flags 271f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 272f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Gets the current flags for a handle. These flags indicate various options 273f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * of the buffer (caching, security, etc.) 274f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 275f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevint ion_handle_get_flags(struct ion_client *client, struct ion_handle *handle, 276f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned long *flags); 277f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 278f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 279f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 280f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_map_iommu - map the given handle into an iommu 281f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 282f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client - client who allocated the handle 283f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle - handle to map 284f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @domain_num - domain number to map to 285f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @partition_num - partition number to allocate iova from 286f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @align - alignment for the iova 287f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @iova_length - length of iova to map. If the iova length is 288f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * greater than the handle length, the remaining 289f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * address space will be mapped to a dummy buffer. 290f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @iova - pointer to store the iova address 291f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @buffer_size - pointer to store the size of the buffer 292f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @flags - flags for options to map 293f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @iommu_flags - flags specific to the iommu. 294f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 295f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Maps the handle into the iova space specified via domain number. Iova 296f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * will be allocated from the partition specified via partition_num. 297f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Returns 0 on success, negative value on error. 298f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 299f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevint ion_map_iommu(struct ion_client *client, struct ion_handle *handle, 300f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev int domain_num, int partition_num, unsigned long align, 301f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned long iova_length, unsigned long *iova, 302f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned long *buffer_size, 303f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned long flags, unsigned long iommu_flags); 304f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 305f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 306f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 307f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_handle_get_size - get the allocated size of a given handle 308f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 309f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client - client who allocated the handle 310f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle - handle to get the size 311f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @size - pointer to store the size 312f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 313f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * gives the allocated size of a handle. returns 0 on success, negative 314f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * value on error 315f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 316f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * NOTE: This is intended to be used only to get a size to pass to map_iommu. 317f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * You should *NOT* rely on this for any other usage. 318f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 319f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 320f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevint ion_handle_get_size(struct ion_client *client, struct ion_handle *handle, 321f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned long *size); 322f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 323f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 324f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_unmap_iommu - unmap the handle from an iommu 325f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 326f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client - client who allocated the handle 327f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle - handle to unmap 328f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @domain_num - domain to unmap from 329f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @partition_num - partition to unmap from 330f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 331f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Decrement the reference count on the iommu mapping. If the count is 332f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 0, the mapping will be removed from the iommu. 333f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 334f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevvoid ion_unmap_iommu(struct ion_client *client, struct ion_handle *handle, 335f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev int domain_num, int partition_num); 336f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 337f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 338f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 339f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_secure_heap - secure a heap 340f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 341f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client - a client that has allocated from the heap heap_id 342f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @heap_id - heap id to secure. 343f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @version - version of content protection 344f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @data - extra data needed for protection 345f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 346f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Secure a heap 347f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Returns 0 on success 348f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 349f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevint ion_secure_heap(struct ion_device *dev, int heap_id, int version, 350f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev void *data); 351f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 352f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 353f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ion_unsecure_heap - un-secure a heap 354f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 355f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client - a client that has allocated from the heap heap_id 356f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @heap_id - heap id to un-secure. 357f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @version - version of content protection 358f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @data - extra data needed for protection 359f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 360f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Un-secure a heap 361f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Returns 0 on success 362f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 363f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevint ion_unsecure_heap(struct ion_device *dev, int heap_id, int version, 364f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev void *data); 365f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 366f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 367f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * msm_ion_do_cache_op - do cache operations. 368f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 369f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @client - pointer to ION client. 370f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle - pointer to buffer handle. 371f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @vaddr - virtual address to operate on. 372f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @len - Length of data to do cache operation on. 373f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @cmd - Cache operation to perform: 374f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ION_IOC_CLEAN_CACHES 375f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ION_IOC_INV_CACHES 376f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * ION_IOC_CLEAN_INV_CACHES 377f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 378f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Returns 0 on success 379f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 380f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevint msm_ion_do_cache_op(struct ion_client *client, struct ion_handle *handle, 381f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev void *vaddr, unsigned long len, unsigned int cmd); 382f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 383f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#else 384f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline void ion_reserve(struct ion_platform_data *data) 385f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 386f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 387f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 388f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 389f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline struct ion_client *ion_client_create(struct ion_device *dev, 390f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned int heap_mask, const char *name) 391f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 392f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return ERR_PTR(-ENODEV); 393f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 394f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 395f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline struct ion_client *msm_ion_client_create(unsigned int heap_mask, 396f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev const char *name) 397f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 398f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return ERR_PTR(-ENODEV); 399f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 400f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 401f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline void ion_client_destroy(struct ion_client *client) { } 402f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 403f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline struct ion_handle *ion_alloc(struct ion_client *client, 404f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev size_t len, size_t align, 405f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned int heap_mask, 406f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned int flags) 407f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 408f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return ERR_PTR(-ENODEV); 409f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 410f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 411f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline void ion_free(struct ion_client *client, 412f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle) { } 413f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 414f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 415f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline int ion_phys(struct ion_client *client, 416f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle, ion_phys_addr_t *addr, size_t *len) 417f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 418f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return -ENODEV; 419f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 420f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 421f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline struct sg_table *ion_sg_table(struct ion_client *client, 422f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle) 423f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 424f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return ERR_PTR(-ENODEV); 425f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 426f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 427f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline void *ion_map_kernel(struct ion_client *client, 428f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle, unsigned long flags) 429f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 430f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return ERR_PTR(-ENODEV); 431f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 432f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 433f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline void ion_unmap_kernel(struct ion_client *client, 434f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle) { } 435f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 436f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline int ion_share_dma_buf(struct ion_client *client, struct ion_handle *handle) 437f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 438f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return -ENODEV; 439f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 440f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 441f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline struct ion_handle *ion_import_dma_buf(struct ion_client *client, int fd) 442f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 443f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return ERR_PTR(-ENODEV); 444f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 445f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 446f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline int ion_handle_get_flags(struct ion_client *client, 447f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle, unsigned long *flags) 448f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 449f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return -ENODEV; 450f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 451f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 452f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline int ion_map_iommu(struct ion_client *client, 453f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle, int domain_num, 454f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev int partition_num, unsigned long align, 455f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned long iova_length, unsigned long *iova, 456f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned long *buffer_size, 457f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned long flags, 458f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned long iommu_flags) 459f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 460f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return -ENODEV; 461f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 462f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 463f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline void ion_unmap_iommu(struct ion_client *client, 464f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle, int domain_num, 465f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev int partition_num) 466f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 467f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return; 468f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 469f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 470f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline int ion_secure_heap(struct ion_device *dev, int heap_id, 471f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev int version, void *data) 472f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 473f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return -ENODEV; 474f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 475f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 476f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 477f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline int ion_unsecure_heap(struct ion_device *dev, int heap_id, 478f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev int version, void *data) 479f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 480f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return -ENODEV; 481f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 482f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 483f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstatic inline int msm_ion_do_cache_op(struct ion_client *client, 484f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle, void *vaddr, 485f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned long len, unsigned int cmd) 486f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev{ 487f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev return -ENODEV; 488f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev} 489f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 490f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#endif /* CONFIG_ION */ 491f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#endif /* __KERNEL__ */ 492f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 493f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 494f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * DOC: Ion Userspace API 495f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 496f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * create a client by opening /dev/ion 497f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * most operations handled via following ioctls 498f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 499f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 500f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 501f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 502f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * struct ion_allocation_data - metadata passed from userspace for allocations 503f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @len: size of the allocation 504f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @align: required alignment of the allocation 505f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @heap_mask: mask of heaps to allocate from 506f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @flags: flags passed to heap 507f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle: pointer that will be populated with a cookie to use to refer 508f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * to this allocation 509f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 510f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Provided by userspace as an argument to the ioctl 511f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 512f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_allocation_data { 513f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev size_t len; 514f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev size_t align; 515f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned int heap_mask; 516f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned int flags; 517f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle; 518f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev}; 519f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 520f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 521f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * struct ion_fd_data - metadata passed to/from userspace for a handle/fd pair 522f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle: a handle 523f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @fd: a file descriptor representing that handle 524f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 525f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * For ION_IOC_SHARE or ION_IOC_MAP userspace populates the handle field with 526f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * the handle returned from ion alloc, and the kernel returns the file 527f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * descriptor to share or map in the fd field. For ION_IOC_IMPORT, userspace 528f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * provides the file descriptor and the kernel returns the handle. 529f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 530f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_fd_data { 531f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle; 532f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev int fd; 533f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev}; 534f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 535f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 536f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * struct ion_handle_data - a handle passed to/from the kernel 537f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @handle: a handle 538f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 539f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_handle_data { 540f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_handle *handle; 541f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev}; 542f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 543f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 544f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * struct ion_custom_data - metadata passed to/from userspace for a custom ioctl 545f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @cmd: the custom ioctl function to call 546f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * @arg: additional data to pass to the custom ioctl, typically a user 547f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * pointer to a predefined structure 548f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 549f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * This works just like the regular cmd and arg fields of an ioctl. 550f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 551f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchevstruct ion_custom_data { 552f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned int cmd; 553f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev unsigned long arg; 554f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev}; 555f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_IOC_MAGIC 'I' 556f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 557f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 558f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * DOC: ION_IOC_ALLOC - allocate memory 559f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 560f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Takes an ion_allocation_data struct and returns it with the handle field 561f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * populated with the opaque handle for the allocation. 562f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 563f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_IOC_ALLOC _IOWR(ION_IOC_MAGIC, 0, \ 564f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev struct ion_allocation_data) 565f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 566f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 567f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * DOC: ION_IOC_FREE - free memory 568f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 569f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Takes an ion_handle_data struct and frees the handle. 570f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 571f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_IOC_FREE _IOWR(ION_IOC_MAGIC, 1, struct ion_handle_data) 572f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 573f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 574f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * DOC: ION_IOC_MAP - get a file descriptor to mmap 575f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 576f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Takes an ion_fd_data struct with the handle field populated with a valid 577f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * opaque handle. Returns the struct with the fd field set to a file 578f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * descriptor open in the current address space. This file descriptor 579f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * can then be used as an argument to mmap. 580f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 581f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_IOC_MAP _IOWR(ION_IOC_MAGIC, 2, struct ion_fd_data) 582f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 583f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 584f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * DOC: ION_IOC_SHARE - creates a file descriptor to use to share an allocation 585f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 586f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Takes an ion_fd_data struct with the handle field populated with a valid 587f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * opaque handle. Returns the struct with the fd field set to a file 588f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * descriptor open in the current address space. This file descriptor 589f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * can then be passed to another process. The corresponding opaque handle can 590f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * be retrieved via ION_IOC_IMPORT. 591f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 592f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_IOC_SHARE _IOWR(ION_IOC_MAGIC, 4, struct ion_fd_data) 593f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 594f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 595f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * DOC: ION_IOC_IMPORT - imports a shared file descriptor 596f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 597f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Takes an ion_fd_data struct with the fd field populated with a valid file 598f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * descriptor obtained from ION_IOC_SHARE and returns the struct with the handle 599f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * filed set to the corresponding opaque handle. 600f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 601f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_IOC_IMPORT _IOWR(ION_IOC_MAGIC, 5, struct ion_fd_data) 602f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 603f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev/** 604f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * DOC: ION_IOC_CUSTOM - call architecture specific ion ioctl 605f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * 606f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * Takes the argument of the architecture specific ioctl to call and 607f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev * passes appropriate userdata for that ioctl 608f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev */ 609f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#define ION_IOC_CUSTOM _IOWR(ION_IOC_MAGIC, 6, struct ion_custom_data) 610f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev 611677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev/** 612677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev * DOC: ION_IOC_SYNC - syncs a shared file descriptors to memory 613677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev * 614677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev * Deprecated in favor of using the dma_buf api's correctly (syncing 615677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev * will happend automatically when the buffer is mapped to a device). 616677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev * If necessary should be used after touching a cached buffer from the cpu, 617677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev * this will make the buffer in memory coherent. 618677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev */ 619677cddc7b686963450156e6a77a75fde2d43e1acIliyan Malchev#define ION_IOC_SYNC _IOWR(ION_IOC_MAGIC, 7, struct ion_fd_data) 620f0edc3f155a136d87beccd5ecef75c2d4b6f6b64Iliyan Malchev#endif /* _LINUX_ION_H */ 621