2 * Freescale Management Complex (MC) bus private declarations
4 * Copyright (C) 2014 Freescale Semiconductor, Inc.
5 * Author: German Rivera <German.Rivera@freescale.com>
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
11 #ifndef _FSL_MC_PRIVATE_H_
12 #define _FSL_MC_PRIVATE_H_
14 #include "../include/mc.h"
15 #include <linux/mutex.h>
16 #include <linux/stringify.h>
18 #define FSL_MC_DPRC_DRIVER_NAME "fsl_mc_dprc"
20 #define FSL_MC_DEVICE_MATCH(_mc_dev, _obj_desc) \
21 (strcmp((_mc_dev)->obj_desc.type, (_obj_desc)->type) == 0 && \
22 (_mc_dev)->obj_desc.id == (_obj_desc)->id)
24 #define FSL_MC_IS_ALLOCATABLE(_obj_type) \
25 (strcmp(_obj_type, "dpbp") == 0 || \
26 strcmp(_obj_type, "dpmcp") == 0 || \
27 strcmp(_obj_type, "dpcon") == 0)
30 * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device
31 * @root_mc_bus_dev: MC object device representing the root DPRC
32 * @addr_translation_ranges: array of bus to system address translation ranges
35 struct fsl_mc_device *root_mc_bus_dev;
36 uint8_t num_translation_ranges;
37 struct fsl_mc_addr_translation_range *translation_ranges;
41 * struct fsl_mc_addr_translation_range - bus to system address translation
43 * @start_mc_addr: Start MC address of the range being translated
44 * @end_mc_addr: MC address of the first byte after the range (last MC
45 * address of the range is end_mc_addr - 1)
46 * @start_phys_addr: system physical address corresponding to start_mc_addr
48 struct fsl_mc_addr_translation_range {
49 uint64_t start_mc_addr;
51 phys_addr_t start_phys_addr;
55 * struct fsl_mc_resource_pool - Pool of MC resources of a given
57 * @type: type of resources in the pool
58 * @max_count: maximum number of resources in the pool
59 * @free_count: number of free resources in the pool
60 * @mutex: mutex to serialize access to the pool's free list
61 * @free_list: anchor node of list of free resources in the pool
62 * @mc_bus: pointer to the MC bus that owns this resource pool
64 struct fsl_mc_resource_pool {
65 enum fsl_mc_pool_type type;
68 struct mutex mutex; /* serializes access to free_list */
69 struct list_head free_list;
70 struct fsl_mc_bus *mc_bus;
74 * struct fsl_mc_bus - logical bus that corresponds to a physical DPRC
75 * @mc_dev: fsl-mc device for the bus device itself.
76 * @resource_pools: array of resource pools (one pool per resource type)
77 * for this MC bus. These resources represent allocatable entities
78 * from the physical DPRC.
79 * @scan_mutex: Serializes bus scanning
82 struct fsl_mc_device mc_dev;
83 struct fsl_mc_resource_pool resource_pools[FSL_MC_NUM_POOL_TYPES];
84 struct mutex scan_mutex; /* serializes bus scanning */
87 #define to_fsl_mc_bus(_mc_dev) \
88 container_of(_mc_dev, struct fsl_mc_bus, mc_dev)
90 int __must_check fsl_mc_device_add(struct dprc_obj_desc *obj_desc,
91 struct fsl_mc_io *mc_io,
92 struct device *parent_dev,
93 struct fsl_mc_device **new_mc_dev);
95 void fsl_mc_device_remove(struct fsl_mc_device *mc_dev);
97 int dprc_scan_container(struct fsl_mc_device *mc_bus_dev);
99 int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev);
101 int __init dprc_driver_init(void);
103 void __exit dprc_driver_exit(void);
105 int __init fsl_mc_allocator_driver_init(void);
107 void __exit fsl_mc_allocator_driver_exit(void);
109 int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus,
110 enum fsl_mc_pool_type pool_type,
111 struct fsl_mc_resource
114 void fsl_mc_resource_free(struct fsl_mc_resource *resource);
116 #endif /* _FSL_MC_PRIVATE_H_ */