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/*-
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* BSD LICENSE
*
* Copyright 2010-2011 Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the above-listed copyright holders nor the
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* GPL LICENSE SUMMARY
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __PROCESS_H
#define __PROCESS_H
#include <compat.h>
/* The process device underlies process-wide user/kernel interactions, such as
* mapping dma_mem memory and providing accompanying ioctl()s. (This isn't used
* for portals, which use one UIO device each.).
*/
#define PROCESS_PATH "/dev/fsl-usdpaa"
/* Allocation of resource IDs uses a generic interface. This enum is used to
* distinguish between the type of underlying object being manipulated.
*/
enum dpaa_id_type {
dpaa_id_fqid,
dpaa_id_bpid,
dpaa_id_qpool,
dpaa_id_cgrid,
dpaa_id_max /* <-- not a valid type, represents the number of types */
};
int process_alloc(enum dpaa_id_type id_type, uint32_t *base, uint32_t num,
uint32_t align, int partial);
void process_release(enum dpaa_id_type id_type, uint32_t base, uint32_t num);
int process_reserve(enum dpaa_id_type id_type, uint32_t base, uint32_t num);
/* Mapping and using QMan/BMan portals */
enum dpaa_portal_type {
dpaa_portal_qman,
dpaa_portal_bman,
};
struct dpaa_ioctl_portal_map {
/* Input parameter, is a qman or bman portal required. */
enum dpaa_portal_type type;
/* Specifes a specific portal index to map or 0xffffffff
* for don't care.
*/
uint32_t index;
/* Return value if the map succeeds, this gives the mapped
* cache-inhibited (cinh) and cache-enabled (cena) addresses.
*/
struct dpaa_portal_map {
void *cinh;
void *cena;
} addr;
/* Qman-specific return values */
u16 channel;
uint32_t pools;
};
int process_portal_map(struct dpaa_ioctl_portal_map *params);
int process_portal_unmap(struct dpaa_portal_map *map);
struct dpaa_ioctl_irq_map {
enum dpaa_portal_type type; /* Type of portal to map */
int fd; /* File descriptor that contains the portal */
void *portal_cinh; /* Cache inhibited area to identify the portal */
};
int process_portal_irq_map(int fd, struct dpaa_ioctl_irq_map *irq);
int process_portal_irq_unmap(int fd);
#endif /* __PROCESS_H */
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