1 /* $NetBSD: octeon_fauvar.h,v 1.1 2015/04/29 08:32:01 hikaru Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Internet Initiative Japan, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _OCTEON_FAUVAR_H_ 30 #define _OCTEON_FAUVAR_H_ 31 32 /* ---- API */ 33 34 struct octeon_fau_desc { 35 /* offset in scratch buffer */ 36 size_t fd_scroff; /* XXX offset_t */ 37 /* FAU register number */ 38 size_t fd_regno; /* XXX offset_t */ 39 }; 40 41 void octeon_fau_op_init(struct octeon_fau_desc *, size_t, size_t); 42 uint64_t octeon_fau_op_save(struct octeon_fau_desc *); 43 void octeon_fau_op_restore(struct octeon_fau_desc *, uint64_t); 44 int64_t octeon_fau_op_inc_8(struct octeon_fau_desc *, int64_t); 45 int32_t octeon_fau_op_inc_4(struct octeon_fau_desc *, int32_t); 46 int16_t octeon_fau_op_inc_2(struct octeon_fau_desc *, int16_t); 47 int8_t octeon_fau_op_inc_1(struct octeon_fau_desc *, int8_t); 48 int64_t octeon_fau_op_incwait_8(struct octeon_fau_desc *, int); 49 int32_t octeon_fau_op_incwait_4(struct octeon_fau_desc *, int); 50 int16_t octeon_fau_op_incwait_2(struct octeon_fau_desc *, int); 51 int8_t octeon_fau_op_incwait_1(struct octeon_fau_desc *, int); 52 int64_t octeon_fau_op_get_8(struct octeon_fau_desc *); 53 int32_t octeon_fau_op_get_4(struct octeon_fau_desc *); 54 int16_t octeon_fau_op_get_2(struct octeon_fau_desc *); 55 int8_t octeon_fau_op_get_1(struct octeon_fau_desc *); 56 int64_t octeon_fau_op_getwait_8(struct octeon_fau_desc *); 57 int32_t octeon_fau_op_getwait_4(struct octeon_fau_desc *); 58 int16_t octeon_fau_op_getwait_2(struct octeon_fau_desc *); 59 int8_t octeon_fau_op_getwait_1(struct octeon_fau_desc *); 60 void octeon_fau_op_add_8(struct octeon_fau_desc *, int64_t); 61 void octeon_fau_op_add_4(struct octeon_fau_desc *, int32_t); 62 void octeon_fau_op_add_2(struct octeon_fau_desc *, int16_t); 63 void octeon_fau_op_add_1(struct octeon_fau_desc *, int8_t); 64 void octeon_fau_op_set_8(struct octeon_fau_desc *, int64_t); 65 void octeon_fau_op_set_4(struct octeon_fau_desc *, int32_t); 66 void octeon_fau_op_set_2(struct octeon_fau_desc *, int16_t); 67 void octeon_fau_op_set_1(struct octeon_fau_desc *, int8_t); 68 69 /* ---- old API */ 70 71 /* XXX */ 72 #define OCT_FAU_REG_OQ_ADDR_INDEX (0) 73 #define OCT_FAU_REG_ADDR_END (256) 74 /* XXX */ 75 76 /* XXX */ 77 typedef enum { 78 OCT_FAU_OP_SIZE_8 = 0, 79 OCT_FAU_OP_SIZE_16 = 1, 80 OCT_FAU_OP_SIZE_32 = 2, 81 OCT_FAU_OP_SIZE_64 = 3 82 } fau_op_size_t; 83 /* XXX */ 84 85 /* 86 * XXX 87 * `scraddr' parameter of IOBDMA operation is actually `index'; 88 */ 89 static inline void 90 octeon_fau_op_iobdma(int index, uint64_t args) 91 { 92 uint64_t value; 93 94 value = 95 ((uint64_t)(index & 0xff) << 56) | 96 ((uint64_t)1 << 48) | 97 ((uint64_t)(CN30XXFAU_MAJORDID & 0x1f) << 43) | 98 ((uint64_t)(CN30XXFAU_SUBDID & 0x7) << 40) | 99 ((uint64_t)args & 0xfffffffffULL); 100 octeon_iobdma_write_8(value); 101 } 102 103 /* IOBDMA Operations */ 104 105 /* IOBDMA Store Data for FAU Operations */ 106 107 static inline void 108 octeon_fau_op_iobdma_store_data(int scraddr, int incval, int tagwait, 109 int size, int reg) 110 { 111 uint64_t args; 112 113 args = 114 ((uint64_t)(incval & 0x3fffff) << 14) | 115 ((uint64_t)(tagwait & 0x1) << 13) | 116 ((uint64_t)(size & 0x3) << 11) | 117 ((uint64_t)(reg & 0x7ff) << 0); 118 /* 119 * `scraddr' parameter of IOBDMA operation is actually `index'; 120 */ 121 octeon_fau_op_iobdma((int)((uint32_t)scraddr >> 3) /* XXX */, args); 122 } 123 124 static inline void 125 octeon_fau_op_inc_fetch_8(struct octeon_fau_desc *fd, int64_t v) 126 { 127 octeon_fau_op_iobdma_store_data(fd->fd_scroff, v, 0, OCT_FAU_OP_SIZE_64/* XXX */, 128 fd->fd_regno); 129 } 130 131 static inline int64_t 132 octeon_fau_op_inc_read_8(struct octeon_fau_desc *fd) 133 { 134 OCTEON_SYNCIOBDMA; 135 return octeon_cvmseg_read_8(fd->fd_scroff); 136 } 137 138 #endif /* _OCTEON_FAUVAR_H_ */ 139