Commit | Line | Data |
---|---|---|
920dae64 AT |
1 | // ========== Copyright Header Begin ========================================== |
2 | // | |
3 | // OpenSPARC T2 Processor File: tm_cpu_ext.cc | |
4 | // Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
5 | // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. | |
6 | // | |
7 | // The above named program is free software; you can redistribute it and/or | |
8 | // modify it under the terms of the GNU General Public | |
9 | // License version 2 as published by the Free Software Foundation. | |
10 | // | |
11 | // The above named program is distributed in the hope that it will be | |
12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | // General Public License for more details. | |
15 | // | |
16 | // You should have received a copy of the GNU General Public | |
17 | // License along with this work; if not, write to the Free Software | |
18 | // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. | |
19 | // | |
20 | // ========== Copyright Header End ============================================ | |
21 | /* | |
22 | * Copyright (C) 1991, 2001 Sun Microsystems, Inc. | |
23 | * All rights reserved. | |
24 | */ | |
25 | #pragma ident "@(#)1.4 01/11/06 tm_blaze_ext.cc" | |
26 | ||
27 | /* | |
28 | * Copyright (c) 1989, Sun Microsystems, Inc. All Rights Reserved. Sun | |
29 | * considers its source code as an unpublished, proprietary trade secret, and | |
30 | * it is available only under strict license provisions. This copyright | |
31 | * notice is placed here only to protect Sun in the event the source is | |
32 | * deemed a published work. Disassembly, decompilation, or other means of | |
33 | * reducing the object code to human readable form is prohibited by the | |
34 | * license agreement under which this code is provided to the user or company | |
35 | * in possession of this copy | |
36 | * | |
37 | * RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the | |
38 | * Government is subject to restrictions as set forth in subparagraph | |
39 | * (c) (1) (ii) of the Rights in Technical Data and Computer Software clause | |
40 | * at DFARS 52.227-7013 and in similar clauses in the FAR and NASA FAR | |
41 | * Supplement | |
42 | */ | |
43 | ||
44 | #include <sys/types.h> | |
45 | #include <assert.h> | |
46 | #include <stdio.h> | |
47 | #include <stdlib.h> | |
48 | #include <string.h> | |
49 | #include <synch.h> | |
50 | #include <dlfcn.h> | |
51 | ||
52 | #include "types.h" | |
53 | #include "blaze_globals.h" | |
54 | #include "cpu_interface.h" | |
55 | #include "system.h" | |
56 | ||
57 | typedef void* TM_OPAQUE_DATA; | |
58 | #include "tracemod.h" | |
59 | ||
60 | #include "mmi.h" | |
61 | ||
62 | #include "ui.h" | |
63 | #include "tm_impl.h" | |
64 | ||
65 | static tracemod_t *pTm_ASI_ext = NULL; | |
66 | ||
67 | // say there are 1024 possible asi's (including room for future growth). | |
68 | // we declare an array of modules, indexed by the ASI, for quick access | |
69 | ||
70 | static const int N_ASI = 1024; | |
71 | ||
72 | static tracemod_t *asi_modules [N_ASI]; | |
73 | static int asi_modules_cnt = 0; | |
74 | ||
75 | static tracemod_t * asi2module[N_ASI] = {0}; | |
76 | static mmi_ld_asi_action asi2ldhandler[N_ASI] = {0}; | |
77 | static mmi_st_asi_action asi2sthandler[N_ASI] = {0}; | |
78 | ||
79 | ///////////////////////////////////////////////////////////// | |
80 | ||
81 | bool_t add_asi_module (tracemod_t* mod, uint32_t asi, mmi_ld_asi_action ld_handler, mmi_st_asi_action st_handler) | |
82 | { | |
83 | if (asi2module[asi] != NULL) { | |
84 | if (mod != asi2module[asi]) { | |
85 | ui->error("loading asi module %s: a module (%s) for asi %d is already loaded\n", | |
86 | mod->name, asi2module[asi]->name, asi); | |
87 | return FALSE; | |
88 | } else { | |
89 | return TRUE; | |
90 | } | |
91 | } | |
92 | ||
93 | int ii = 0; | |
94 | ||
95 | for (ii = 0; ii < asi_modules_cnt; ii++) { | |
96 | if (asi_modules[ii] == mod) { | |
97 | // module is already loaded, but for some other ASI | |
98 | break; | |
99 | } | |
100 | } | |
101 | ||
102 | if (ii == asi_modules_cnt) { | |
103 | // new module | |
104 | ||
105 | if (asi_modules_cnt >= N_ASI) { | |
106 | ui->error("loading asi module %s: too many ASI modules (%d) already loaded\n", | |
107 | mod->name, N_ASI); | |
108 | return FALSE; | |
109 | } | |
110 | ||
111 | asi_modules[asi_modules_cnt++] = mod; | |
112 | } | |
113 | ||
114 | asi2module[asi] = mod; | |
115 | asi2ldhandler[asi] = ld_handler; | |
116 | asi2sthandler[asi] = st_handler; | |
117 | ||
118 | return TRUE; | |
119 | } | |
120 | ||
121 | ///////////////////////////////////////////////////////////// | |
122 | ||
123 | // TODO : to make it more accurate | |
124 | // | |
125 | // ASI handling : | |
126 | // Assume we have CPU (CPUM) and DEVICE module (DEVM) responsible for some extra ASI handling. | |
127 | // 1. DEVM registers ASI handler with "mmi_register_asi...." with BLAZE | |
128 | // 2. RS2BLAZE "glue code" registers it's own ASI callback with CPUM | |
129 | // 3. When CPUM executes say LD with unsopported ASI it INVOKES callback (see #2) | |
130 | // 4. This callback in turn invokes TM_execute_load/store_asi (see below). | |
131 | // | |
132 | ||
133 | int | |
134 | TM_execute_load_asi (uint32_t asi, uint64_t vaddr, uint64_t *buf, int size, uint32_t cpuid) | |
135 | { | |
136 | ||
137 | tracemod_t * mod = asi2module[asi]; | |
138 | if (mod == NULL) return -1; | |
139 | ||
140 | mmi_ld_asi_action ld_handler = asi2ldhandler[asi]; | |
141 | if (ld_handler == NULL) { | |
142 | return -1; | |
143 | } | |
144 | ||
145 | return ld_handler(TM_get_asi_client_data((void*)mod), asi, vaddr, buf, size, cpuid); | |
146 | ||
147 | } | |
148 | ||
149 | ///////////////////////////////////////////////////////////// | |
150 | ||
151 | int | |
152 | TM_execute_store_asi (uint32_t asi, uint64_t vaddr, uint64_t *buf, int size, uint32_t cpuid) | |
153 | { | |
154 | ||
155 | tracemod_t * mod = asi2module[asi]; | |
156 | if (mod == NULL) return -1; | |
157 | ||
158 | mmi_st_asi_action st_handler = asi2sthandler[asi]; | |
159 | if (st_handler == NULL) { | |
160 | return -1; | |
161 | } | |
162 | ||
163 | return st_handler(TM_get_asi_client_data((void*)mod), asi, vaddr, *buf, size, cpuid); | |
164 | } |