7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 /*
30 * hci1394_buf.c
31 * These routines handle IO mapped memory. They include routines to alloc and
32 * free IO mapped memory and a routine to get the adapters default dma
33 * attributes. These routines are meant to be called from the base context.
34 * They should not be called from an interrupt handler.
35 */
36
37 #include <sys/conf.h>
38 #include <sys/ddi.h>
39 #include <sys/modctl.h>
40 #include <sys/stat.h>
41 #include <sys/sunddi.h>
42 #include <sys/kmem.h>
43
44 #include <sys/1394/h1394.h>
45 #include <sys/1394/adapters/hci1394.h>
46
47
48 /*
90 int status;
91
92
93 ASSERT(drvinfo != NULL);
94 ASSERT(parms != NULL);
95 ASSERT(info != NULL);
96 ASSERT(handle != NULL);
97 TNF_PROBE_0_DEBUG(hci1394_buf_alloc_enter, HCI1394_TNF_HAL_STACK, "");
98
99 /* alloc the space to keep track of the buffer */
100 buf = kmem_alloc(sizeof (hci1394_buf_t), KM_SLEEP);
101
102 /* setup the return parameter */
103 *handle = buf;
104
105 /* save away pointer to general info */
106 buf->bu_drvinfo = drvinfo;
107
108 /* Get the default DMA attributes and override sgllen and alignment */
109
110 _NOTE(SCHEME_PROTECTS_DATA("unique (on stack)", ddi_dma_attr_t))
111 hci1394_buf_attr_get(&dma_attr);
112 dma_attr.dma_attr_sgllen = parms->bp_max_cookies;
113 dma_attr.dma_attr_align = parms->bp_alignment;
114
115 status = ddi_dma_alloc_handle(drvinfo->di_dip, &dma_attr,
116 DDI_DMA_SLEEP, NULL, &buf->bu_dma_handle);
117 if (status != DDI_SUCCESS) {
118 kmem_free(buf, sizeof (hci1394_buf_t));
119 TNF_PROBE_0(hci1394_buf_alloc_dah_fail, HCI1394_TNF_HAL_ERROR,
120 "");
121 TNF_PROBE_0_DEBUG(hci1394_buf_alloc_exit, HCI1394_TNF_HAL_STACK,
122 "");
123 return (DDI_FAILURE);
124 }
125
126 status = ddi_dma_mem_alloc(buf->bu_dma_handle, parms->bp_length,
127 &drvinfo->di_buf_attr, DDI_DMA_STREAMING, DDI_DMA_SLEEP,
128 NULL, &info->bi_kaddr, &info->bi_real_length, &buf->bu_handle);
129 if (status != DDI_SUCCESS) {
130 ddi_dma_free_handle(&buf->bu_dma_handle);
|
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /*
28 * hci1394_buf.c
29 * These routines handle IO mapped memory. They include routines to alloc and
30 * free IO mapped memory and a routine to get the adapters default dma
31 * attributes. These routines are meant to be called from the base context.
32 * They should not be called from an interrupt handler.
33 */
34
35 #include <sys/conf.h>
36 #include <sys/ddi.h>
37 #include <sys/modctl.h>
38 #include <sys/stat.h>
39 #include <sys/sunddi.h>
40 #include <sys/kmem.h>
41
42 #include <sys/1394/h1394.h>
43 #include <sys/1394/adapters/hci1394.h>
44
45
46 /*
88 int status;
89
90
91 ASSERT(drvinfo != NULL);
92 ASSERT(parms != NULL);
93 ASSERT(info != NULL);
94 ASSERT(handle != NULL);
95 TNF_PROBE_0_DEBUG(hci1394_buf_alloc_enter, HCI1394_TNF_HAL_STACK, "");
96
97 /* alloc the space to keep track of the buffer */
98 buf = kmem_alloc(sizeof (hci1394_buf_t), KM_SLEEP);
99
100 /* setup the return parameter */
101 *handle = buf;
102
103 /* save away pointer to general info */
104 buf->bu_drvinfo = drvinfo;
105
106 /* Get the default DMA attributes and override sgllen and alignment */
107
108 hci1394_buf_attr_get(&dma_attr);
109 dma_attr.dma_attr_sgllen = parms->bp_max_cookies;
110 dma_attr.dma_attr_align = parms->bp_alignment;
111
112 status = ddi_dma_alloc_handle(drvinfo->di_dip, &dma_attr,
113 DDI_DMA_SLEEP, NULL, &buf->bu_dma_handle);
114 if (status != DDI_SUCCESS) {
115 kmem_free(buf, sizeof (hci1394_buf_t));
116 TNF_PROBE_0(hci1394_buf_alloc_dah_fail, HCI1394_TNF_HAL_ERROR,
117 "");
118 TNF_PROBE_0_DEBUG(hci1394_buf_alloc_exit, HCI1394_TNF_HAL_STACK,
119 "");
120 return (DDI_FAILURE);
121 }
122
123 status = ddi_dma_mem_alloc(buf->bu_dma_handle, parms->bp_length,
124 &drvinfo->di_buf_attr, DDI_DMA_STREAMING, DDI_DMA_SLEEP,
125 NULL, &info->bi_kaddr, &info->bi_real_length, &buf->bu_handle);
126 if (status != DDI_SUCCESS) {
127 ddi_dma_free_handle(&buf->bu_dma_handle);
|