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/* $OpenBSD: cn30xxfauvar.h,v 1.4 2022/12/28 01:39:21 yasuoka Exp $ */
/*
* Copyright (c) 2007 Internet Initiative Japan, 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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 _CN30XXFAUVAR_H_
#define _CN30XXFAUVAR_H_
/* ---- API */
struct cn30xxfau_desc {
/* offset in scratch buffer */
size_t fd_scroff; /* XXX offset_t */
/* FAU register number */
size_t fd_regno; /* XXX offset_t */
};
void cn30xxfau_op_init(struct cn30xxfau_desc *, size_t, size_t);
uint64_t cn30xxfau_op_save(struct cn30xxfau_desc *);
void cn30xxfau_op_restore(struct cn30xxfau_desc *, uint64_t);
int64_t cn30xxfau_op_inc_8(struct cn30xxfau_desc *, int64_t);
int32_t cn30xxfau_op_inc_4(struct cn30xxfau_desc *, int32_t);
int16_t cn30xxfau_op_inc_2(struct cn30xxfau_desc *, int16_t);
int8_t cn30xxfau_op_inc_1(struct cn30xxfau_desc *, int8_t);
int64_t cn30xxfau_op_incwait_8(struct cn30xxfau_desc *, int);
int32_t cn30xxfau_op_incwait_4(struct cn30xxfau_desc *, int);
int16_t cn30xxfau_op_incwait_2(struct cn30xxfau_desc *, int);
int8_t cn30xxfau_op_incwait_1(struct cn30xxfau_desc *, int);
int64_t cn30xxfau_op_get_8(struct cn30xxfau_desc *);
int32_t cn30xxfau_op_get_4(struct cn30xxfau_desc *);
int16_t cn30xxfau_op_get_2(struct cn30xxfau_desc *);
int8_t cn30xxfau_op_get_1(struct cn30xxfau_desc *);
int64_t cn30xxfau_op_getwait_8(struct cn30xxfau_desc *);
int32_t cn30xxfau_op_getwait_4(struct cn30xxfau_desc *);
int16_t cn30xxfau_op_getwait_2(struct cn30xxfau_desc *);
int8_t cn30xxfau_op_getwait_1(struct cn30xxfau_desc *);
void cn30xxfau_op_add_8(struct cn30xxfau_desc *, int64_t);
void cn30xxfau_op_add_4(struct cn30xxfau_desc *, int32_t);
void cn30xxfau_op_add_2(struct cn30xxfau_desc *, int16_t);
void cn30xxfau_op_add_1(struct cn30xxfau_desc *, int8_t);
void cn30xxfau_op_set_8(struct cn30xxfau_desc *, int64_t);
void cn30xxfau_op_set_4(struct cn30xxfau_desc *, int32_t);
void cn30xxfau_op_set_2(struct cn30xxfau_desc *, int16_t);
void cn30xxfau_op_set_1(struct cn30xxfau_desc *, int8_t);
/* ---- old API */
/* XXX */
#define OCT_FAU_REG_OQ_ADDR_INDEX (0)
#define OCT_FAU_REG_ADDR_END (256)
/* XXX */
/* XXX */
typedef enum {
OCT_FAU_OP_SIZE_8 = 0,
OCT_FAU_OP_SIZE_16 = 1,
OCT_FAU_OP_SIZE_32 = 2,
OCT_FAU_OP_SIZE_64 = 3
} fau_op_size_t;
/* XXX */
static inline void
cn30xxfau_op_iobdma(int index, uint64_t args)
{
uint64_t value;
value =
((uint64_t)(index & 0xff) << 56) |
((uint64_t)1 << 48) |
((uint64_t)(CN30XXFAU_MAJORDID & 0x1f) << 43) |
((uint64_t)(CN30XXFAU_SUBDID & 0x7) << 40) |
((uint64_t)args & 0xfffffffffULL);
octeon_iobdma_write_8(value);
}
/* 3.4.2 IOBDMA Operations */
/* IOBDMA Store Data for FAU Operations */
static inline void
cn30xxfau_op_iobdma_store_data(int scraddr, int incval, int tagwait,
int size, int reg)
{
uint64_t args;
args =
((uint64_t)(incval & 0x3fffff) << 14) |
((uint64_t)(tagwait & 0x1) << 13) |
((uint64_t)(size & 0x3) << 11) |
((uint64_t)(reg & 0x7ff) << 0);
/* use `srcaddr` as `index' */
cn30xxfau_op_iobdma((int)((uint32_t)scraddr >> 3) /* XXX */, args);
}
static inline void
cn30xxfau_op_inc_fetch_8(struct cn30xxfau_desc *fd, int64_t v)
{
cn30xxfau_op_iobdma_store_data(fd->fd_scroff, v, 0, OCT_FAU_OP_SIZE_64/* XXX */,
fd->fd_regno);
}
static inline int64_t
cn30xxfau_op_inc_read_8(struct cn30xxfau_desc *fd)
{
octeon_synciobdma();
return octeon_cvmseg_read_8(fd->fd_scroff);
}
#endif /* _CN30XXFAUVAR_H_ */
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