Subversion Repositories HelenOS

Rev

Rev 3771 | Rev 3798 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 3771 Rev 3783
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