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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Jakub Jermar |
2 | * Copyright (c) 2005 Jakub Jermar |
3 | * Copyright (c) 2009 Pavel Rimsky |
3 | * Copyright (c) 2009 Pavel Rimsky |
4 | * All rights reserved. |
4 | * All rights reserved. |
5 | * |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
8 | * are met: |
8 | * are met: |
9 | * |
9 | * |
10 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
14 | * documentation and/or other materials provided with the distribution. |
15 | * - The name of the author may not be used to endorse or promote products |
15 | * - The name of the author may not be used to endorse or promote products |
16 | * derived from this software without specific prior written permission. |
16 | * derived from this software without specific prior written permission. |
17 | * |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
28 | */ |
29 | 29 | ||
30 | /** @addtogroup sparc64 |
30 | /** @addtogroup sparc64 |
31 | * @{ |
31 | * @{ |
32 | */ |
32 | */ |
33 | /** @file |
33 | /** @file |
34 | */ |
34 | */ |
35 | 35 | ||
36 | #include <arch/cpu_family.h> |
36 | #include <arch/cpu_family.h> |
37 | #include <cpu.h> |
37 | #include <cpu.h> |
38 | #include <arch.h> |
38 | #include <arch.h> |
39 | #include <genarch/ofw/ofw_tree.h> |
39 | #include <genarch/ofw/ofw_tree.h> |
40 | #include <arch/drivers/tick.h> |
40 | #include <arch/drivers/tick.h> |
41 | #include <print.h> |
41 | #include <print.h> |
42 | #include <arch/cpu_node.h> |
42 | #include <arch/cpu_node.h> |
- | 43 | #include <arch/sun4v/md.h> |
|
- | 44 | #include <arch/sun4v/hypercall.h> |
|
43 | 45 | ||
44 | /** Perform sparc64 specific initialization of the processor structure for the |
46 | /** Perform sparc64 specific initialization of the processor structure for the |
45 | * current processor. |
47 | * current processor. |
46 | */ |
48 | */ |
47 | void cpu_arch_init(void) |
49 | void cpu_arch_init(void) |
48 | { |
50 | { |
- | 51 | uint64_t myid; |
|
- | 52 | __hypercall_fast_ret1(0, 0, 0, 0, 0, CPU_MYID, &myid); |
|
- | 53 | ||
- | 54 | md_node_t node = md_get_root(); |
|
- | 55 | ||
49 | // TODO: detect the real frequency as soon as MD walkthrough is implemented |
56 | /* walk through MD, find the current CPU node & its clock-frequency */ |
- | 57 | while (true) { |
|
- | 58 | ||
- | 59 | if (!md_next_node(&node, "cpu")) { |
|
- | 60 | panic("Could not determine CPU frequency."); |
|
- | 61 | } |
|
- | 62 | ||
- | 63 | uint64_t id = 0; |
|
- | 64 | md_get_integer_property(node, "id", &id); |
|
- | 65 | if (id == myid) { |
|
50 | CPU->arch.clock_frequency = 5000; |
66 | uint64_t clock_frequency = 0; |
- | 67 | md_get_integer_property(node, "clock-frequency", |
|
- | 68 | &clock_frequency); |
|
- | 69 | CPU->arch.clock_frequency = clock_frequency; |
|
- | 70 | break; |
|
- | 71 | } |
|
- | 72 | } |
|
- | 73 | ||
51 | tick_init(); |
74 | tick_init(); |
52 | } |
75 | } |
53 | 76 | ||
- | 77 | /** |
|
54 | /** Implemented as an empty function as accessing the VER register is |
78 | * Implemented as an empty function as accessing the VER register is |
55 | * a hyperprivileged operation on sun4v. |
79 | * a hyperprivileged operation on sun4v. |
56 | */ |
80 | */ |
57 | void cpu_identify(void) |
81 | void cpu_identify(void) |
58 | { |
82 | { |
59 | } |
83 | } |
60 | 84 | ||
61 | /** Print version information for a processor. |
85 | /** Print version information for a processor. |
62 | * |
86 | * |
63 | * This function is called by the bootstrap processor. |
87 | * This function is called by the bootstrap processor. |
64 | * |
88 | * |
65 | * @param m Processor structure of the CPU for which version information is to |
89 | * @param m Processor structure of the CPU for which version information is to |
66 | * be printed. |
90 | * be printed. |
67 | */ |
91 | */ |
68 | void cpu_print_report(cpu_t *m) |
92 | void cpu_print_report(cpu_t *m) |
69 | { |
93 | { |
70 | // TODO: modify cpu_t so that it contains a pointer to the MD of |
94 | // TODO: modify cpu_t so that it contains a pointer to the MD of |
71 | // the represented CPU, from this function print the information found in the MD. |
95 | // the represented CPU, from this function print the information found in the MD. |
72 | printf("Niagara, 5MHz\n"); |
96 | printf("Niagara, 5MHz\n"); |
73 | } |
97 | } |
74 | 98 | ||
75 | /** @} |
99 | /** @} |
76 | */ |
100 | */ |
77 | 101 |