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8368 remove warlock leftovers from usr/src/uts
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--- old/usr/src/uts/common/io/1394/adapters/hci1394_buf.c
+++ new/usr/src/uts/common/io/1394/adapters/hci1394_buf.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License, Version 1.0 only
6 6 * (the "License"). You may not use this file except in compliance
7 7 * with the License.
8 8 *
9 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 10 * or http://www.opensolaris.org/os/licensing.
11 11 * See the License for the specific language governing permissions
12 12 * and limitations under the License.
13 13 *
14 14 * When distributing Covered Code, include this CDDL HEADER in each
15 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 16 * If applicable, add the following below this CDDL HEADER, with the
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17 17 * fields enclosed by brackets "[]" replaced with your own identifying
18 18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 19 *
20 20 * CDDL HEADER END
21 21 */
22 22 /*
23 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24 24 * Use is subject to license terms.
25 25 */
26 26
27 -#pragma ident "%Z%%M% %I% %E% SMI"
28 -
29 27 /*
30 28 * hci1394_buf.c
31 29 * These routines handle IO mapped memory. They include routines to alloc and
32 30 * free IO mapped memory and a routine to get the adapters default dma
33 31 * attributes. These routines are meant to be called from the base context.
34 32 * They should not be called from an interrupt handler.
35 33 */
36 34
37 35 #include <sys/conf.h>
38 36 #include <sys/ddi.h>
39 37 #include <sys/modctl.h>
40 38 #include <sys/stat.h>
41 39 #include <sys/sunddi.h>
42 40 #include <sys/kmem.h>
43 41
44 42 #include <sys/1394/h1394.h>
45 43 #include <sys/1394/adapters/hci1394.h>
46 44
47 45
48 46 /*
49 47 * hci1394_buffer_attr_get()
50 48 * returns (in dma_attr) the default DMA attributes for this adapter.
51 49 */
52 50 void
53 51 hci1394_buf_attr_get(ddi_dma_attr_t *dma_attr)
54 52 {
55 53 dma_attr->dma_attr_version = DMA_ATTR_V0;
56 54 dma_attr->dma_attr_addr_lo = (uint64_t)0x00000000;
57 55 dma_attr->dma_attr_addr_hi = (uint64_t)0xFFFFFFFF;
58 56 dma_attr->dma_attr_count_max = (uint64_t)0xFFFFFFFF;
59 57 dma_attr->dma_attr_align = 64;
60 58 dma_attr->dma_attr_burstsizes = 0x3FF;
61 59 dma_attr->dma_attr_minxfer = 1;
62 60 dma_attr->dma_attr_maxxfer = (uint64_t)0xFFFFFFFF;
63 61 dma_attr->dma_attr_seg = (uint64_t)0xFFFFFFFF;
64 62 dma_attr->dma_attr_sgllen = 0x7FFFFFFF;
65 63 dma_attr->dma_attr_granular = 4;
66 64 dma_attr->dma_attr_flags = 0;
67 65
68 66 #if defined(__i386) || defined(__amd64)
69 67 /* XXX - Not sure why x86 wants the dma_attr_seg to be 0x7FFF?? */
70 68 dma_attr->dma_attr_seg = (uint64_t)0x7FFF;
71 69 #endif
72 70 }
73 71
74 72
75 73 /*
76 74 * hci1394_buf_alloc()
77 75 * Allocate an IO mapped buffer. drvinfo is passed in and contains generic
78 76 * driver info, like dip, instance, buf_attr, etc. Parms is passed in and
79 77 * contains the input parameters for alloc, ow much memory to alloc, how many
80 78 * cookies can we handle, and alignment requirements. info is returned with
81 79 * all the info about the mapped buffer. handle is returned. It should be
82 80 * used when calling hci1394_buf_free().
83 81 */
84 82 int
85 83 hci1394_buf_alloc(hci1394_drvinfo_t *drvinfo, hci1394_buf_parms_t *parms,
86 84 hci1394_buf_info_t *info, hci1394_buf_handle_t *handle)
87 85 {
88 86 ddi_dma_attr_t dma_attr;
89 87 hci1394_buf_t *buf;
90 88 int status;
91 89
92 90
93 91 ASSERT(drvinfo != NULL);
94 92 ASSERT(parms != NULL);
95 93 ASSERT(info != NULL);
96 94 ASSERT(handle != NULL);
97 95 TNF_PROBE_0_DEBUG(hci1394_buf_alloc_enter, HCI1394_TNF_HAL_STACK, "");
98 96
99 97 /* alloc the space to keep track of the buffer */
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100 98 buf = kmem_alloc(sizeof (hci1394_buf_t), KM_SLEEP);
101 99
102 100 /* setup the return parameter */
103 101 *handle = buf;
104 102
105 103 /* save away pointer to general info */
106 104 buf->bu_drvinfo = drvinfo;
107 105
108 106 /* Get the default DMA attributes and override sgllen and alignment */
109 107
110 - _NOTE(SCHEME_PROTECTS_DATA("unique (on stack)", ddi_dma_attr_t))
111 108 hci1394_buf_attr_get(&dma_attr);
112 109 dma_attr.dma_attr_sgllen = parms->bp_max_cookies;
113 110 dma_attr.dma_attr_align = parms->bp_alignment;
114 111
115 112 status = ddi_dma_alloc_handle(drvinfo->di_dip, &dma_attr,
116 113 DDI_DMA_SLEEP, NULL, &buf->bu_dma_handle);
117 114 if (status != DDI_SUCCESS) {
118 115 kmem_free(buf, sizeof (hci1394_buf_t));
119 116 TNF_PROBE_0(hci1394_buf_alloc_dah_fail, HCI1394_TNF_HAL_ERROR,
120 117 "");
121 118 TNF_PROBE_0_DEBUG(hci1394_buf_alloc_exit, HCI1394_TNF_HAL_STACK,
122 119 "");
123 120 return (DDI_FAILURE);
124 121 }
125 122
126 123 status = ddi_dma_mem_alloc(buf->bu_dma_handle, parms->bp_length,
127 124 &drvinfo->di_buf_attr, DDI_DMA_STREAMING, DDI_DMA_SLEEP,
128 125 NULL, &info->bi_kaddr, &info->bi_real_length, &buf->bu_handle);
129 126 if (status != DDI_SUCCESS) {
130 127 ddi_dma_free_handle(&buf->bu_dma_handle);
131 128 kmem_free(buf, sizeof (hci1394_buf_t));
132 129 TNF_PROBE_0(hci1394_buf_alloc_dam_fail, HCI1394_TNF_HAL_ERROR,
133 130 "");
134 131 TNF_PROBE_0_DEBUG(hci1394_buf_alloc_exit, HCI1394_TNF_HAL_STACK,
135 132 "");
136 133 return (DDI_FAILURE);
137 134 }
138 135
139 136 status = ddi_dma_addr_bind_handle(buf->bu_dma_handle, NULL,
140 137 info->bi_kaddr, info->bi_real_length, DDI_DMA_RDWR |
141 138 DDI_DMA_STREAMING, DDI_DMA_SLEEP, NULL, &info->bi_cookie,
142 139 &info->bi_cookie_count);
143 140 if (status != DDI_SUCCESS) {
144 141 ddi_dma_mem_free(&buf->bu_handle);
145 142 ddi_dma_free_handle(&buf->bu_dma_handle);
146 143 kmem_free(buf, sizeof (hci1394_buf_t));
147 144 TNF_PROBE_0(hci1394_buf_alloc_dbh_fail, HCI1394_TNF_HAL_ERROR,
148 145 "");
149 146 TNF_PROBE_0_DEBUG(hci1394_buf_alloc_exit, HCI1394_TNF_HAL_STACK,
150 147 "");
151 148 return (DDI_FAILURE);
152 149 }
153 150
154 151 /* setup rest of buffer info returned to caller */
155 152 info->bi_handle = buf->bu_handle;
156 153 info->bi_dma_handle = buf->bu_dma_handle;
157 154 info->bi_length = parms->bp_length;
158 155
159 156 TNF_PROBE_0_DEBUG(hci1394_buf_alloc_exit, HCI1394_TNF_HAL_STACK, "");
160 157
161 158 return (DDI_SUCCESS);
162 159 }
163 160
164 161
165 162 /*
166 163 * hci1394_buf_free()
167 164 * Free IO mapped buffer. Notice that a pointer to the handle is used for
168 165 * the parameter. free() will set your handle to NULL before returning.
169 166 */
170 167 void
171 168 hci1394_buf_free(hci1394_buf_handle_t *handle)
172 169 {
173 170 hci1394_buf_t *buf;
174 171
175 172 ASSERT(handle != NULL);
176 173 TNF_PROBE_0_DEBUG(hci1394_buf_free_enter, HCI1394_TNF_HAL_STACK, "");
177 174
178 175 buf = *handle;
179 176 (void) ddi_dma_unbind_handle(buf->bu_dma_handle);
180 177 ddi_dma_mem_free(&buf->bu_handle);
181 178 ddi_dma_free_handle(&buf->bu_dma_handle);
182 179
183 180 /* free the space to keep track of the buffer */
184 181 kmem_free(buf, sizeof (hci1394_buf_t));
185 182
186 183 /* set the handle to NULL to help catch bugs */
187 184 *handle = NULL;
188 185
189 186 TNF_PROBE_0_DEBUG(hci1394_buf_free_exit, HCI1394_TNF_HAL_STACK, "");
190 187 }
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