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/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
*
* Copyright 2010-2011 Freescale Semiconductor, Inc.
* All rights reserved.
*
*/
#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_portal_map {
void *cinh;
void *cena;
};
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 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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