WebSVN – HelenOS – Diff – /trunk/boot/arch/sparc64/loader/ofwarch.c


/*
 * Copyright (C) 2005 Martin Decky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/**
 * @file
 * @brief   Architecture dependent parts of OpenFirmware interface.
 */
 
#include <ofwarch.h>  
#include <ofw.h>
#include <printf.h>
#include <string.h>
#include <register.h>
#include "main.h"
 
void write(const char *str, const int len)
{
    int i;
   
    for (i = 0; i < len; i++) {
        if (str[i] == '\n')
            ofw_write("\r", 1);
        ofw_write(&str[i], 1);
    }
}
 
int ofw_translate_failed(ofw_arg_t flag)
{
    return flag != -1;
}
 
 
 
 
 
 
int ofw_cpu(void)
{
    char type_name[BUF_SIZE];
 
    phandle node;
    node = ofw_get_child_node(ofw_root);
    if (node == 0 || node == -1) {
        printf("Could not find any child nodes of the root node.\n");
        return 0;
    }
   
    uint64_t current_mid;
   
    __asm__ volatile ("ldxa [%1] %2, %0\n" : "=r" (current_mid) : "r" (0), "i" (ASI_UPA_CONFIG));
    current_mid >>= UPA_CONFIG_MID_SHIFT;
    current_mid &= UPA_CONFIG_MID_MASK;
 
    int cpus;
   
    for (cpus = 0; node != 0 && node != -1; node = ofw_get_peer_node(node), cpus++) {
        if (ofw_get_property(node, "device_type", type_name, sizeof(type_name)) > 0) {
            if (strcmp(type_name, "cpu") == 0) {
                uint32_t mid;
               
                if (ofw_get_property(node, "upa-portid", &mid, sizeof(mid)) <= 0)
                    continue;
                   
                if (current_mid != mid) {
                    /*
                     * Start secondary processor.
                     */
                    (void) ofw_call("SUNW,start-cpu", 3, 1, NULL, node, KERNEL_VIRTUAL_ADDRESS, 0);
                }
            }
        }
    }
 
    return cpus;
}
 

Rev 1899	Rev 1903
1	/*	1	/*
2	* Copyright (C) 2005 Martin Decky	2	* Copyright (C) 2005 Martin Decky
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	/**	29	/**
30	* @file	30	* @file
31	* @brief Architecture dependent parts of OpenFirmware interface.	31	* @brief Architecture dependent parts of OpenFirmware interface.
32	*/	32	*/
33		33
34	#include <ofwarch.h>	34	#include <ofwarch.h>
35	#include <ofw.h>	35	#include <ofw.h>
36	#include <printf.h>	36	#include <printf.h>
37	#include <string.h>	37	#include <string.h>
-		38	#include <register.h>
38	#include "main.h"	39	#include "main.h"
39		40
40	void write(const char *str, const int len)	41	void write(const char *str, const int len)
41	{	42	{
42	int i;	43	int i;
43		44
44	for (i = 0; i < len; i++) {	45	for (i = 0; i < len; i++) {
45	if (str[i] == '\n')	46	if (str[i] == '\n')
46	ofw_write("\r", 1);	47	ofw_write("\r", 1);
47	ofw_write(&str[i], 1);	48	ofw_write(&str[i], 1);
48	}	49	}
49	}	50	}
50		51
51	int ofw_translate_failed(ofw_arg_t flag)	52	int ofw_translate_failed(ofw_arg_t flag)
52	{	53	{
53	return flag != -1;	54	return flag != -1;
54	}	55	}
55		56
56		-
57	#define ASI_UPA_CONFIG 0x4a	-
58	#define UPA_CONFIG_MID_SHIFT 17	-
59	#define UPA_CONFIG_MID_MASK 0x1f	-
60		-
61	int ofw_cpu(void)	57	int ofw_cpu(void)
62	{	58	{
63	char type_name[BUF_SIZE];	59	char type_name[BUF_SIZE];
64		60
65	phandle node;	61	phandle node;
66	node = ofw_get_child_node(ofw_root);	62	node = ofw_get_child_node(ofw_root);
67	if (node == 0 \|\| node == -1) {	63	if (node == 0 \|\| node == -1) {
68	printf("Could not find any child nodes of the root node.\n");	64	printf("Could not find any child nodes of the root node.\n");
69	return 0;	65	return 0;
70	}	66	}
71		67
72	uint64_t current_mid;	68	uint64_t current_mid;
73		69
74	__asm__ volatile ("ldxa [%1] %2, %0\n" : "=r" (current_mid) : "r" (0), "i" (ASI_UPA_CONFIG));	70	__asm__ volatile ("ldxa [%1] %2, %0\n" : "=r" (current_mid) : "r" (0), "i" (ASI_UPA_CONFIG));
75	current_mid >>= UPA_CONFIG_MID_SHIFT;	71	current_mid >>= UPA_CONFIG_MID_SHIFT;
76	current_mid &= UPA_CONFIG_MID_MASK;	72	current_mid &= UPA_CONFIG_MID_MASK;
-		73
-		74	int cpus;
77		75
78	for (; node != 0 && node != -1; node = ofw_get_peer_node(node)) {	76	for (cpus = 0; node != 0 && node != -1; node = ofw_get_peer_node(node), cpus++) {
79	if (ofw_get_property(node, "device_type", type_name, sizeof(type_name)) > 0) {	77	if (ofw_get_property(node, "device_type", type_name, sizeof(type_name)) > 0) {
80	if (strcmp(type_name, "cpu") == 0) {	78	if (strcmp(type_name, "cpu") == 0) {
81	uint32_t mid;	79	uint32_t mid;
82		80
83	if (ofw_get_property(node, "upa-portid", &mid, sizeof(mid)) <= 0)	81	if (ofw_get_property(node, "upa-portid", &mid, sizeof(mid)) <= 0)
84	continue;	82	continue;
85		83
86	if (current_mid != mid) {	84	if (current_mid != mid) {
87	/*	85	/*
88	* Start secondary processor.	86	* Start secondary processor.
89	*/	87	*/
90	(void) ofw_call("SUNW,start-cpu", 3, 1, NULL, node, KERNEL_VIRTUAL_ADDRESS, 0);	88	(void) ofw_call("SUNW,start-cpu", 3, 1, NULL, node, KERNEL_VIRTUAL_ADDRESS, 0);
91	}	89	}
92	}	90	}
93	}	91	}
94	}	92	}
95		93
96	return 1;	94	return cpus;
97	}	95	}
98		96

Subversion Repositories HelenOS

(root)/trunk/boot/arch/sparc64/loader/ofwarch.c – Rev 1899 → 1903