1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <sys/promif.h>
27 #include <sys/promimpl.h>
28
29 /*
30 * prom_itlb_load, prom_dtlb_load:
31 *
32 * Manage the Spitfire TLB. Returns 0 if successful, -1 otherwise.
33 * Flush the address in context zero mapped by tte_data and virt,
34 * and load the {i,d} tlb entry index with tte_data and virt.
35 */
36
37 int
prom_itlb_load(int index,unsigned long long tte_data,caddr_t virt)38 prom_itlb_load(int index, unsigned long long tte_data, caddr_t virt)
39 {
40 cell_t ci[9];
41 int rv;
42 ihandle_t immu = prom_mmu_ihandle();
43
44 if ((immu == (ihandle_t)-1))
45 return (-1);
46
47 ci[0] = p1275_ptr2cell("call-method"); /* Service name */
48 ci[1] = (cell_t)5; /* #argument cells */
49 ci[2] = (cell_t)1; /* #result cells */
50 ci[3] = p1275_ptr2cell("SUNW,itlb-load"); /* Arg1: method name */
51 ci[4] = p1275_ihandle2cell(immu); /* Arg2: mmu ihandle */
52 ci[5] = p1275_ptr2cell(virt); /* Arg3: SA1: virt */
53 ci[6] = (cell_t)tte_data; /* Arg4: SA2: tte_data */
54 ci[7] = p1275_int2cell(index); /* Arg5: SA3: index */
55
56 promif_preprom();
57 rv = p1275_cif_handler(&ci);
58 promif_postprom();
59
60 if (rv != 0)
61 return (-1);
62 if (ci[8] != 0) /* Res1: Catch result */
63 return (-1);
64 return (0);
65 }
66
67 int
prom_dtlb_load(int index,unsigned long long tte_data,caddr_t virt)68 prom_dtlb_load(int index, unsigned long long tte_data, caddr_t virt)
69 {
70 cell_t ci[9];
71 int rv;
72 ihandle_t immu = prom_mmu_ihandle();
73
74 if ((immu == (ihandle_t)-1))
75 return (-1);
76
77 ci[0] = p1275_ptr2cell("call-method"); /* Service name */
78 ci[1] = (cell_t)5; /* #argument cells */
79 ci[2] = (cell_t)1; /* #result cells */
80 ci[3] = p1275_ptr2cell("SUNW,dtlb-load"); /* Arg1: method name */
81 ci[4] = p1275_ihandle2cell(immu); /* Arg2: mmu ihandle */
82 ci[5] = p1275_ptr2cell(virt); /* Arg3: SA1: virt */
83 ci[6] = (cell_t)tte_data; /* Arg4: SA2: tte_data */
84 ci[7] = p1275_int2cell(index); /* Arg5: SA3: index */
85
86 promif_preprom();
87 rv = p1275_cif_handler(&ci);
88 promif_postprom();
89
90 if (rv != 0)
91 return (-1);
92 if (ci[8] != 0) /* Res1: Catch result */
93 return (-1);
94 return (0);
95 }
96