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- /*
- * Freescale Management Complex (MC) bus private declarations
- *
- * Copyright (C) 2014 Freescale Semiconductor, Inc.
- * Author: German Rivera <German.Rivera@freescale.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
- #ifndef _FSL_MC_PRIVATE_H_
- #define _FSL_MC_PRIVATE_H_
- #include "../include/mc.h"
- #include <linux/mutex.h>
- #include <linux/stringify.h>
- #define FSL_MC_DPRC_DRIVER_NAME "fsl_mc_dprc"
- #define FSL_MC_DEVICE_MATCH(_mc_dev, _obj_desc) \
- (strcmp((_mc_dev)->obj_desc.type, (_obj_desc)->type) == 0 && \
- (_mc_dev)->obj_desc.id == (_obj_desc)->id)
- #define FSL_MC_IS_ALLOCATABLE(_obj_type) \
- (strcmp(_obj_type, "dpbp") == 0 || \
- strcmp(_obj_type, "dpmcp") == 0 || \
- strcmp(_obj_type, "dpcon") == 0)
- /**
- * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device
- * @root_mc_bus_dev: MC object device representing the root DPRC
- * @num_translation_ranges: number of entries in addr_translation_ranges
- * @translation_ranges: array of bus to system address translation ranges
- */
- struct fsl_mc {
- struct fsl_mc_device *root_mc_bus_dev;
- u8 num_translation_ranges;
- struct fsl_mc_addr_translation_range *translation_ranges;
- };
- /**
- * struct fsl_mc_addr_translation_range - bus to system address translation
- * range
- * @mc_region_type: Type of MC region for the range being translated
- * @start_mc_offset: Start MC offset of the range being translated
- * @end_mc_offset: MC offset of the first byte after the range (last MC
- * offset of the range is end_mc_offset - 1)
- * @start_phys_addr: system physical address corresponding to start_mc_addr
- */
- struct fsl_mc_addr_translation_range {
- enum dprc_region_type mc_region_type;
- u64 start_mc_offset;
- u64 end_mc_offset;
- phys_addr_t start_phys_addr;
- };
- /**
- * struct fsl_mc_resource_pool - Pool of MC resources of a given
- * type
- * @type: type of resources in the pool
- * @max_count: maximum number of resources in the pool
- * @free_count: number of free resources in the pool
- * @mutex: mutex to serialize access to the pool's free list
- * @free_list: anchor node of list of free resources in the pool
- * @mc_bus: pointer to the MC bus that owns this resource pool
- */
- struct fsl_mc_resource_pool {
- enum fsl_mc_pool_type type;
- int16_t max_count;
- int16_t free_count;
- struct mutex mutex; /* serializes access to free_list */
- struct list_head free_list;
- struct fsl_mc_bus *mc_bus;
- };
- /**
- * struct fsl_mc_bus - logical bus that corresponds to a physical DPRC
- * @mc_dev: fsl-mc device for the bus device itself.
- * @resource_pools: array of resource pools (one pool per resource type)
- * for this MC bus. These resources represent allocatable entities
- * from the physical DPRC.
- * @scan_mutex: Serializes bus scanning
- */
- struct fsl_mc_bus {
- struct fsl_mc_device mc_dev;
- struct fsl_mc_resource_pool resource_pools[FSL_MC_NUM_POOL_TYPES];
- struct mutex scan_mutex; /* serializes bus scanning */
- };
- #define to_fsl_mc_bus(_mc_dev) \
- container_of(_mc_dev, struct fsl_mc_bus, mc_dev)
- int __must_check fsl_mc_device_add(struct dprc_obj_desc *obj_desc,
- struct fsl_mc_io *mc_io,
- struct device *parent_dev,
- struct fsl_mc_device **new_mc_dev);
- void fsl_mc_device_remove(struct fsl_mc_device *mc_dev);
- int dprc_scan_container(struct fsl_mc_device *mc_bus_dev);
- int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev);
- int __init dprc_driver_init(void);
- void dprc_driver_exit(void);
- int __init fsl_mc_allocator_driver_init(void);
- void __exit fsl_mc_allocator_driver_exit(void);
- int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus,
- enum fsl_mc_pool_type pool_type,
- struct fsl_mc_resource
- **new_resource);
- void fsl_mc_resource_free(struct fsl_mc_resource *resource);
- #endif /* _FSL_MC_PRIVATE_H_ */
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