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1
/*
1
/*
2
 * Copyright (c) 2006 Jakub Jermar
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 * Copyright (c) 2006 Jakub Jermar
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 * All rights reserved.
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 * All rights reserved.
4
 *
4
 *
5
 * Redistribution and use in source and binary forms, with or without
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
6
 * modification, are permitted provided that the following conditions
7
 * are met:
7
 * are met:
8
 *
8
 *
9
 * - Redistributions of source code must retain the above copyright
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
12
 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
15
 *   derived from this software without specific prior written permission.
16
 *
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
27
 */
28
 
28
 
29
/** @addtogroup sparc64
29
/** @addtogroup sparc64
30
 * @{
30
 * @{
31
 */
31
 */
32
/**
32
/**
33
 * @file
33
 * @file
34
 * @brief   PCI driver.
34
 * @brief   PCI driver.
35
 */
35
 */
36
 
36
 
37
#include <arch/drivers/pci.h>
37
#include <arch/drivers/pci.h>
38
#include <genarch/ofw/ofw_tree.h>
38
#include <genarch/ofw/ofw_tree.h>
39
#include <arch/trap/interrupt.h>
39
#include <arch/trap/interrupt.h>
40
#include <mm/page.h>
40
#include <mm/page.h>
41
#include <mm/slab.h>
41
#include <mm/slab.h>
42
#include <arch/types.h>
42
#include <arch/types.h>
43
#include <debug.h>
43
#include <debug.h>
44
#include <print.h>
44
#include <print.h>
45
#include <func.h>
45
#include <func.h>
46
#include <arch/asm.h>
46
#include <arch/asm.h>
47
 
47
 
48
#define PCI_SABRE_REGS_REG  0
48
#define PCI_SABRE_REGS_REG  0
49
 
49
 
50
#define PCI_SABRE_IMAP_BASE 0x200
50
#define PCI_SABRE_IMAP_BASE 0x200
51
#define PCI_SABRE_ICLR_BASE 0x300
51
#define PCI_SABRE_ICLR_BASE 0x300
52
 
52
 
53
#define PCI_PSYCHO_REGS_REG 2   
53
#define PCI_PSYCHO_REGS_REG 2   
54
 
54
 
55
#define PCI_PSYCHO_IMAP_BASE    0x200
55
#define PCI_PSYCHO_IMAP_BASE    0x200
56
#define PCI_PSYCHO_ICLR_BASE    0x300   
56
#define PCI_PSYCHO_ICLR_BASE    0x300   
57
 
57
 
58
static pci_t *pci_sabre_init(ofw_tree_node_t *node);
58
static pci_t *pci_sabre_init(ofw_tree_node_t *node);
59
static void pci_sabre_enable_interrupt(pci_t *pci, int inr);
59
static void pci_sabre_enable_interrupt(pci_t *pci, int inr);
60
static void pci_sabre_clear_interrupt(pci_t *pci, int inr);
60
static void pci_sabre_clear_interrupt(pci_t *pci, int inr);
61
 
61
 
62
static pci_t *pci_psycho_init(ofw_tree_node_t *node);
62
static pci_t *pci_psycho_init(ofw_tree_node_t *node);
63
static void pci_psycho_enable_interrupt(pci_t *pci, int inr);
63
static void pci_psycho_enable_interrupt(pci_t *pci, int inr);
64
static void pci_psycho_clear_interrupt(pci_t *pci, int inr);
64
static void pci_psycho_clear_interrupt(pci_t *pci, int inr);
65
 
65
 
66
/** PCI operations for Sabre model. */
66
/** PCI operations for Sabre model. */
67
static pci_operations_t pci_sabre_ops = {
67
static pci_operations_t pci_sabre_ops = {
68
    .enable_interrupt = pci_sabre_enable_interrupt,
68
    .enable_interrupt = pci_sabre_enable_interrupt,
69
    .clear_interrupt = pci_sabre_clear_interrupt
69
    .clear_interrupt = pci_sabre_clear_interrupt
70
};
70
};
71
/** PCI operations for Psycho model. */
71
/** PCI operations for Psycho model. */
72
static pci_operations_t pci_psycho_ops = {
72
static pci_operations_t pci_psycho_ops = {
73
    .enable_interrupt = pci_psycho_enable_interrupt,
73
    .enable_interrupt = pci_psycho_enable_interrupt,
74
    .clear_interrupt = pci_psycho_clear_interrupt
74
    .clear_interrupt = pci_psycho_clear_interrupt
75
};
75
};
76
 
76
 
77
/** Initialize PCI controller (model Sabre).
77
/** Initialize PCI controller (model Sabre).
78
 *
78
 *
79
 * @param node OpenFirmware device tree node of the Sabre.
79
 * @param node OpenFirmware device tree node of the Sabre.
80
 *
80
 *
81
 * @return Address of the initialized PCI structure.
81
 * @return Address of the initialized PCI structure.
82
 */
82
 */
83
pci_t *pci_sabre_init(ofw_tree_node_t *node)
83
pci_t *pci_sabre_init(ofw_tree_node_t *node)
84
{
84
{
85
    pci_t *pci;
85
    pci_t *pci;
86
    ofw_tree_property_t *prop;
86
    ofw_tree_property_t *prop;
87
 
87
 
88
    /*
88
    /*
89
     * Get registers.
89
     * Get registers.
90
     */
90
     */
91
    prop = ofw_tree_getprop(node, "reg");
91
    prop = ofw_tree_getprop(node, "reg");
92
    if (!prop || !prop->value)
92
    if (!prop || !prop->value)
93
        return NULL;
93
        return NULL;
94
 
94
 
95
    ofw_upa_reg_t *reg = prop->value;
95
    ofw_upa_reg_t *reg = prop->value;
96
    count_t regs = prop->size / sizeof(ofw_upa_reg_t);
96
    count_t regs = prop->size / sizeof(ofw_upa_reg_t);
97
 
97
 
98
    if (regs < PCI_SABRE_REGS_REG + 1)
98
    if (regs < PCI_SABRE_REGS_REG + 1)
99
        return NULL;
99
        return NULL;
100
 
100
 
101
    uintptr_t paddr;
101
    uintptr_t paddr;
102
    if (!ofw_upa_apply_ranges(node->parent, &reg[PCI_SABRE_REGS_REG], &paddr))
102
    if (!ofw_upa_apply_ranges(node->parent, &reg[PCI_SABRE_REGS_REG], &paddr))
103
        return NULL;
103
        return NULL;
104
 
104
 
105
    pci = (pci_t *) malloc(sizeof(pci_t), FRAME_ATOMIC);
105
    pci = (pci_t *) malloc(sizeof(pci_t), FRAME_ATOMIC);
106
    if (!pci)
106
    if (!pci)
107
        return NULL;
107
        return NULL;
108
 
108
 
109
    pci->model = PCI_SABRE;
109
    pci->model = PCI_SABRE;
110
    pci->op = &pci_sabre_ops;
110
    pci->op = &pci_sabre_ops;
111
    pci->reg = (uint64_t *) hw_map(paddr, reg[PCI_SABRE_REGS_REG].size);
111
    pci->reg = (uint64_t *) hw_map(paddr, reg[PCI_SABRE_REGS_REG].size);
112
 
112
 
113
    return pci;
113
    return pci;
114
}
114
}
115
 
115
 
116
 
116
 
117
/** Initialize the Psycho PCI controller.
117
/** Initialize the Psycho PCI controller.
118
 *
118
 *
119
 * @param node OpenFirmware device tree node of the Psycho.
119
 * @param node OpenFirmware device tree node of the Psycho.
120
 *
120
 *
121
 * @return Address of the initialized PCI structure.
121
 * @return Address of the initialized PCI structure.
122
 */
122
 */
123
pci_t *pci_psycho_init(ofw_tree_node_t *node)
123
pci_t *pci_psycho_init(ofw_tree_node_t *node)
124
{
124
{
125
    pci_t *pci;
125
    pci_t *pci;
126
    ofw_tree_property_t *prop;
126
    ofw_tree_property_t *prop;
127
 
127
 
128
    /*
128
    /*
129
     * Get registers.
129
     * Get registers.
130
     */
130
     */
131
    prop = ofw_tree_getprop(node, "reg");
131
    prop = ofw_tree_getprop(node, "reg");
132
    if (!prop || !prop->value)
132
    if (!prop || !prop->value)
133
        return NULL;
133
        return NULL;
134
 
134
 
135
    ofw_upa_reg_t *reg = prop->value;
135
    ofw_upa_reg_t *reg = prop->value;
136
    count_t regs = prop->size / sizeof(ofw_upa_reg_t);
136
    count_t regs = prop->size / sizeof(ofw_upa_reg_t);
137
 
137
 
138
    if (regs < PCI_PSYCHO_REGS_REG + 1)
138
    if (regs < PCI_PSYCHO_REGS_REG + 1)
139
        return NULL;
139
        return NULL;
140
 
140
 
141
    uintptr_t paddr;
141
    uintptr_t paddr;
142
    if (!ofw_upa_apply_ranges(node->parent, &reg[PCI_PSYCHO_REGS_REG], &paddr))
142
    if (!ofw_upa_apply_ranges(node->parent, &reg[PCI_PSYCHO_REGS_REG], &paddr))
143
        return NULL;
143
        return NULL;
144
 
144
 
145
    pci = (pci_t *) malloc(sizeof(pci_t), FRAME_ATOMIC);
145
    pci = (pci_t *) malloc(sizeof(pci_t), FRAME_ATOMIC);
146
    if (!pci)
146
    if (!pci)
147
        return NULL;
147
        return NULL;
148
 
148
 
149
    pci->model = PCI_PSYCHO;
149
    pci->model = PCI_PSYCHO;
150
    pci->op = &pci_psycho_ops;
150
    pci->op = &pci_psycho_ops;
151
    pci->reg = (uint64_t *) hw_map(paddr, reg[PCI_PSYCHO_REGS_REG].size);
151
    pci->reg = (uint64_t *) hw_map(paddr, reg[PCI_PSYCHO_REGS_REG].size);
152
 
152
 
153
    return pci;
153
    return pci;
154
}
154
}
155
 
155
 
156
void pci_sabre_enable_interrupt(pci_t *pci, int inr)
156
void pci_sabre_enable_interrupt(pci_t *pci, int inr)
157
{
157
{
158
    pci->reg[PCI_SABRE_IMAP_BASE + (inr & INO_MASK)] |= IMAP_V_MASK;
158
    pci->reg[PCI_SABRE_IMAP_BASE + (inr & INO_MASK)] |= IMAP_V_MASK;
159
}
159
}
160
 
160
 
161
void pci_sabre_clear_interrupt(pci_t *pci, int inr)
161
void pci_sabre_clear_interrupt(pci_t *pci, int inr)
162
{
162
{
163
    pci->reg[PCI_SABRE_ICLR_BASE + (inr & INO_MASK)] = 0;
163
    pci->reg[PCI_SABRE_ICLR_BASE + (inr & INO_MASK)] = 0;
164
}
164
}
165
 
165
 
166
void pci_psycho_enable_interrupt(pci_t *pci, int inr)
166
void pci_psycho_enable_interrupt(pci_t *pci, int inr)
167
{
167
{
168
    pci->reg[PCI_PSYCHO_IMAP_BASE + (inr & INO_MASK)] |= IMAP_V_MASK;
168
    pci->reg[PCI_PSYCHO_IMAP_BASE + (inr & INO_MASK)] |= IMAP_V_MASK;
169
}
169
}
170
 
170
 
171
void pci_psycho_clear_interrupt(pci_t *pci, int inr)
171
void pci_psycho_clear_interrupt(pci_t *pci, int inr)
172
{
172
{
173
    pci->reg[PCI_PSYCHO_ICLR_BASE + (inr & INO_MASK)] = 0;
173
    pci->reg[PCI_PSYCHO_ICLR_BASE + (inr & INO_MASK)] = 0;
174
}
174
}
175
 
175
 
176
/** Initialize PCI controller. */
176
/** Initialize PCI controller. */
177
pci_t *pci_init(ofw_tree_node_t *node)
177
pci_t *pci_init(ofw_tree_node_t *node)
178
{
178
{
179
    ofw_tree_property_t *prop;
179
    ofw_tree_property_t *prop;
180
 
180
 
181
    /*
181
    /*
182
     * First, verify this is a PCI node.
182
     * First, verify this is a PCI node.
183
     */
183
     */
184
    ASSERT(strcmp(ofw_tree_node_name(node), "pci") == 0);
184
    ASSERT(strcmp(ofw_tree_node_name(node), "pci") == 0);
185
 
185
 
186
    /*
186
    /*
187
     * Determine PCI controller model.
187
     * Determine PCI controller model.
188
     */
188
     */
189
    prop = ofw_tree_getprop(node, "model");
189
    prop = ofw_tree_getprop(node, "model");
190
    if (!prop || !prop->value)
190
    if (!prop || !prop->value)
191
        return NULL;
191
        return NULL;
192
   
192
   
193
    if (strcmp(prop->value, "SUNW,sabre") == 0) {
193
    if (strcmp(prop->value, "SUNW,sabre") == 0) {
194
        /*
194
        /*
195
         * PCI controller Sabre.
195
         * PCI controller Sabre.
196
         * This model is found on UltraSPARC IIi based machines.
196
         * This model is found on UltraSPARC IIi based machines.
197
         */
197
         */
198
        return pci_sabre_init(node);
198
        return pci_sabre_init(node);
199
    } else if (strcmp(prop->value, "SUNW,psycho") == 0) {
199
    } else if (strcmp(prop->value, "SUNW,psycho") == 0) {
200
        /*
200
        /*
201
         * PCI controller Psycho.
201
         * PCI controller Psycho.
202
         * Used on UltraSPARC II based processors, for instance,
202
         * Used on UltraSPARC II based processors, for instance,
203
         * on Ultra 60.
203
         * on Ultra 60.
204
         */
204
         */
205
        return pci_psycho_init(node);
205
        return pci_psycho_init(node);
206
    } else {
206
    } else {
207
        /*
207
        /*
208
         * Unsupported model.
208
         * Unsupported model.
209
         */
209
         */
210
        printf("Unsupported PCI controller model (%s).\n", prop->value);
210
        printf("Unsupported PCI controller model (%s).\n", prop->value);
211
    }
211
    }
212
 
212
 
213
    return NULL;
213
    return NULL;
214
}
214
}
215
 
215
 
216
void pci_enable_interrupt(pci_t *pci, int inr)
216
void pci_enable_interrupt(pci_t *pci, int inr)
217
{
217
{
218
    ASSERT(pci->model);
218
    ASSERT(pci->model);
219
    ASSERT(pci->op && pci->op->enable_interrupt);
219
    ASSERT(pci->op && pci->op->enable_interrupt);
220
    pci->op->enable_interrupt(pci, inr);
220
    pci->op->enable_interrupt(pci, inr);
221
}
221
}
222
 
222
 
223
void pci_clear_interrupt(pci_t *pci, int inr)
223
void pci_clear_interrupt(pci_t *pci, int inr)
224
{
224
{
225
    ASSERT(pci->model);
225
    ASSERT(pci->model);
226
    ASSERT(pci->op && pci->op->clear_interrupt);
226
    ASSERT(pci->op && pci->op->clear_interrupt);
227
    pci->op->clear_interrupt(pci, inr);
227
    pci->op->clear_interrupt(pci, inr);
228
}
228
}
229
 
229
 
230
/** @}
230
/** @}
231
 */
231
 */
232
 
232