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1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
2 | * Copyright (C) 2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * 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 |
13 | * 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 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <arch/asm.h> |
35 | #include <arch/asm.h> |
36 | #include <cpu.h> |
36 | #include <cpu.h> |
37 | #include <arch.h> |
37 | #include <arch.h> |
38 | #include <print.h> |
38 | #include <print.h> |
39 | #include <arch/register.h> |
39 | #include <arch/register.h> |
40 | #include <genarch/ofw/ofw_tree.h> |
40 | #include <genarch/ofw/ofw_tree.h> |
41 | #include <arch/types.h> |
41 | #include <arch/types.h> |
42 | #include <arch/drivers/tick.h> |
42 | #include <arch/drivers/tick.h> |
43 | #include <arch/mm/page.h> |
- | |
44 | #include <arch/mm/tlb.h> |
- | |
45 | #include <macros.h> |
- | |
46 | 43 | ||
47 | /** Perform sparc64 specific initialization of the processor structure for the |
44 | /** Perform sparc64 specific initialization of the processor structure for the |
48 | * current processor. |
45 | * current processor. |
49 | */ |
46 | */ |
50 | void cpu_arch_init(void) |
47 | void cpu_arch_init(void) |
51 | { |
48 | { |
52 | ofw_tree_node_t *node; |
49 | ofw_tree_node_t *node; |
53 | uint32_t mid; |
50 | uint32_t mid; |
54 | uint32_t clock_frequency = 0; |
51 | uint32_t clock_frequency = 0; |
55 | upa_config_t upa_config; |
52 | upa_config_t upa_config; |
56 | 53 | ||
57 | upa_config.value = upa_config_read(); |
54 | upa_config.value = upa_config_read(); |
58 | CPU->arch.mid = upa_config.mid; |
55 | CPU->arch.mid = upa_config.mid; |
59 | 56 | ||
60 | /* |
57 | /* |
61 | * Detect processor frequency. |
58 | * Detect processor frequency. |
62 | */ |
59 | */ |
63 | node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu"); |
60 | node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu"); |
64 | while (node) { |
61 | while (node) { |
65 | ofw_tree_property_t *prop; |
62 | ofw_tree_property_t *prop; |
66 | 63 | ||
67 | prop = ofw_tree_getprop(node, "upa-portid"); |
64 | prop = ofw_tree_getprop(node, "upa-portid"); |
68 | if (prop && prop->value) { |
65 | if (prop && prop->value) { |
69 | mid = *((uint32_t *) prop->value); |
66 | mid = *((uint32_t *) prop->value); |
70 | if (mid == CPU->arch.mid) { |
67 | if (mid == CPU->arch.mid) { |
71 | prop = ofw_tree_getprop(node, |
68 | prop = ofw_tree_getprop(node, |
72 | "clock-frequency"); |
69 | "clock-frequency"); |
73 | if (prop && prop->value) |
70 | if (prop && prop->value) |
74 | clock_frequency = *((uint32_t *) |
71 | clock_frequency = *((uint32_t *) |
75 | prop->value); |
72 | prop->value); |
76 | } |
73 | } |
77 | } |
74 | } |
78 | node = ofw_tree_find_peer_by_device_type(node, "cpu"); |
75 | node = ofw_tree_find_peer_by_device_type(node, "cpu"); |
79 | } |
76 | } |
80 | 77 | ||
81 | CPU->arch.clock_frequency = clock_frequency; |
78 | CPU->arch.clock_frequency = clock_frequency; |
82 | tick_init(); |
79 | tick_init(); |
83 | - | ||
84 | /* |
- | |
85 | * Lock CPU stack in DTLB. |
- | |
86 | */ |
- | |
87 | uintptr_t base = ALIGN_DOWN(config.base, 1 << KERNEL_PAGE_WIDTH); |
- | |
88 | - | ||
89 | if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1 << |
- | |
90 | KERNEL_PAGE_WIDTH))) { |
- | |
91 | /* |
- | |
92 | * Kernel stack of this processor is not locked in DTLB. |
- | |
93 | * First, demap any already existing mappings. |
- | |
94 | * Second, create a locked mapping for it. |
- | |
95 | */ |
- | |
96 | dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (uintptr_t) |
- | |
97 | CPU->stack); |
- | |
98 | dtlb_insert_mapping((uintptr_t) CPU->stack, KA2PA(CPU->stack), |
- | |
99 | PAGESIZE_8K, true, true); |
- | |
100 | } |
- | |
101 | } |
80 | } |
102 | 81 | ||
103 | /** Read version information from the current processor. */ |
82 | /** Read version information from the current processor. */ |
104 | void cpu_identify(void) |
83 | void cpu_identify(void) |
105 | { |
84 | { |
106 | CPU->arch.ver.value = ver_read(); |
85 | CPU->arch.ver.value = ver_read(); |
107 | } |
86 | } |
108 | 87 | ||
109 | /** Print version information for a processor. |
88 | /** Print version information for a processor. |
110 | * |
89 | * |
111 | * This function is called by the bootstrap processor. |
90 | * This function is called by the bootstrap processor. |
112 | * |
91 | * |
113 | * @param m Processor structure of the CPU for which version information is to |
92 | * @param m Processor structure of the CPU for which version information is to |
114 | * be printed. |
93 | * be printed. |
115 | */ |
94 | */ |
116 | void cpu_print_report(cpu_t *m) |
95 | void cpu_print_report(cpu_t *m) |
117 | { |
96 | { |
118 | char *manuf, *impl; |
97 | char *manuf, *impl; |
119 | 98 | ||
120 | switch (m->arch.ver.manuf) { |
99 | switch (m->arch.ver.manuf) { |
121 | case MANUF_FUJITSU: |
100 | case MANUF_FUJITSU: |
122 | manuf = "Fujitsu"; |
101 | manuf = "Fujitsu"; |
123 | break; |
102 | break; |
124 | case MANUF_ULTRASPARC: |
103 | case MANUF_ULTRASPARC: |
125 | manuf = "UltraSPARC"; |
104 | manuf = "UltraSPARC"; |
126 | break; |
105 | break; |
127 | case MANUF_SUN: |
106 | case MANUF_SUN: |
128 | manuf = "Sun"; |
107 | manuf = "Sun"; |
129 | break; |
108 | break; |
130 | default: |
109 | default: |
131 | manuf = "Unknown"; |
110 | manuf = "Unknown"; |
132 | break; |
111 | break; |
133 | } |
112 | } |
134 | 113 | ||
135 | switch (CPU->arch.ver.impl) { |
114 | switch (CPU->arch.ver.impl) { |
136 | case IMPL_ULTRASPARCI: |
115 | case IMPL_ULTRASPARCI: |
137 | impl = "UltraSPARC I"; |
116 | impl = "UltraSPARC I"; |
138 | break; |
117 | break; |
139 | case IMPL_ULTRASPARCII: |
118 | case IMPL_ULTRASPARCII: |
140 | impl = "UltraSPARC II"; |
119 | impl = "UltraSPARC II"; |
141 | break; |
120 | break; |
142 | case IMPL_ULTRASPARCII_I: |
121 | case IMPL_ULTRASPARCII_I: |
143 | impl = "UltraSPARC IIi"; |
122 | impl = "UltraSPARC IIi"; |
144 | break; |
123 | break; |
145 | case IMPL_ULTRASPARCII_E: |
124 | case IMPL_ULTRASPARCII_E: |
146 | impl = "UltraSPARC IIe"; |
125 | impl = "UltraSPARC IIe"; |
147 | break; |
126 | break; |
148 | case IMPL_ULTRASPARCIII: |
127 | case IMPL_ULTRASPARCIII: |
149 | impl = "UltraSPARC III"; |
128 | impl = "UltraSPARC III"; |
150 | break; |
129 | break; |
151 | case IMPL_ULTRASPARCIV_PLUS: |
130 | case IMPL_ULTRASPARCIV_PLUS: |
152 | impl = "UltraSPARC IV+"; |
131 | impl = "UltraSPARC IV+"; |
153 | break; |
132 | break; |
154 | case IMPL_SPARC64V: |
133 | case IMPL_SPARC64V: |
155 | impl = "SPARC 64V"; |
134 | impl = "SPARC 64V"; |
156 | break; |
135 | break; |
157 | default: |
136 | default: |
158 | impl = "Unknown"; |
137 | impl = "Unknown"; |
159 | break; |
138 | break; |
160 | } |
139 | } |
161 | 140 | ||
162 | printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n", m->id, manuf, |
141 | printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n", m->id, manuf, |
163 | impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000); |
142 | impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000); |
164 | } |
143 | } |
165 | 144 | ||
166 | /** @} |
145 | /** @} |
167 | */ |
146 | */ |
168 | 147 |