WebSVN – HelenOS – Diff – /branches/sparc/kernel/arch/sparc64/src/cpu/cpu.c


/*
 * Copyright (c) 2005 Jakub Jermar
 * 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.
 */
 
/** @addtogroup sparc64
 * @{
 */
/** @file
 */
 
#include <arch/cpu_family.h>
#include <cpu.h>
#include <arch.h>
#include <genarch/ofw/ofw_tree.h>
#include <arch/drivers/tick.h>
#include <print.h>
#include <arch/cpu_node.h>
 
/**
 * Finds out the clock frequency of the current CPU.
 *
 * @param node  node representing the current CPU in the OFW tree
 * @return  clock frequency if "node" is the current CPU and no error
 *      occurs, -1 if "node" is not the current CPU or on error
 */
static int find_cpu_frequency(ofw_tree_node_t *node)
{
    ofw_tree_property_t *prop;
    uint32_t mid;
 
    /* 'upa-portid' for US, 'portid' for US-III, 'cpuid' for US-IV */
    prop = ofw_tree_getprop(node, "upa-portid");
    if ((!prop) || (!prop->value))
        prop = ofw_tree_getprop(node, "portid");
    if ((!prop) || (!prop->value))
        prop = ofw_tree_getprop(node, "cpuid");
   
    if (prop && prop->value) {
        mid = *((uint32_t *) prop->value);
        if (mid == CPU->arch.mid) {
            prop = ofw_tree_getprop(node, "clock-frequency");
            if (prop && prop->value) {
                return *((uint32_t *) prop->value);
            }
        }
    }
   
    return -1;
}
 
/** Perform sparc64 specific initialization of the processor structure for the
 * current processor.
 */
void cpu_arch_init(void)
{
    ofw_tree_node_t *node;
    uint32_t clock_frequency = 0;
    icbus_config_t icbus_config;
   
    icbus_config.value = icbus_config_read();
    CPU->arch.mid = icbus_config.mid;
   
    /*
     * Detect processor frequency.
     */
    if (is_us() || is_us_iii()) {
        node = ofw_tree_find_child_by_device_type(cpus_parent(), "cpu");
        while (node) {
            int f = find_cpu_frequency(node);
            if (f != -1)
                clock_frequency = (uint32_t) f;
            node = ofw_tree_find_peer_by_device_type(node, "cpu");
        }
    } else if (is_us_iv()) {
        node = ofw_tree_find_child(cpus_parent(), "cmp");
        while (node) {
            int f;
            f = find_cpu_frequency(
                ofw_tree_find_child(node, "cpu@0"));
            if (f != -1)
                clock_frequency = (uint32_t) f;
            f = find_cpu_frequency(
                ofw_tree_find_child(node, "cpu@1"));
            if (f != -1)
                clock_frequency = (uint32_t) f;
            node = ofw_tree_find_peer_by_name(node, "cmp");
        }
    }
       
    CPU->arch.clock_frequency = clock_frequency;
    tick_init();
}
 
/** Read version information from the current processor. */
void cpu_identify(void)
{
    CPU->arch.ver.value = ver_read();
}
 
/** Print version information for a processor.
 *
 * This function is called by the bootstrap processor.
 *
 * @param m Processor structure of the CPU for which version information is to
 *  be printed.
 */
void cpu_print_report(cpu_t *m)
{
    char *manuf, *impl;
 
    switch (m->arch.ver.manuf) {
    case MANUF_FUJITSU:
        manuf = "Fujitsu";
        break;
    case MANUF_ULTRASPARC:
        manuf = "UltraSPARC";
        break;
    case MANUF_SUN:
            manuf = "Sun";
        break;
    default:
        manuf = "Unknown";
        break;
    }
   
    switch (CPU->arch.ver.impl) {
    case IMPL_ULTRASPARCI:
        impl = "UltraSPARC I";
        break;
    case IMPL_ULTRASPARCII:
        impl = "UltraSPARC II";
        break;
    case IMPL_ULTRASPARCII_I:
        impl = "UltraSPARC IIi";
        break;
    case IMPL_ULTRASPARCII_E:
        impl = "UltraSPARC IIe";
        break;
    case IMPL_ULTRASPARCIII:
        impl = "UltraSPARC III";
        break;
    case IMPL_ULTRASPARCIII_PLUS:
        impl = "UltraSPARC III+";
        break;
    case IMPL_ULTRASPARCIII_I:
        impl = "UltraSPARC IIIi";
        break;
    case IMPL_ULTRASPARCIV:
        impl = "UltraSPARC IV";
        break;
    case IMPL_ULTRASPARCIV_PLUS:
        impl = "UltraSPARC IV+";
        break;
    case IMPL_SPARC64V:
        impl = "SPARC 64V";
        break;
    default:
        impl = "Unknown";
        break;
    }
 
    printf("cpu%d: manuf=%s, impl=%s, mask=%d (%d MHz)\n", m->id, manuf,
        impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000);
}
 
/** @}
 */
 

Rev 3582	Rev 3618
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/cpu_family.h>	35	#include <arch/cpu_family.h>
36	#include <cpu.h>	36	#include <cpu.h>
37	#include <arch.h>	37	#include <arch.h>
38	#include <genarch/ofw/ofw_tree.h>	38	#include <genarch/ofw/ofw_tree.h>
39	#include <arch/drivers/tick.h>	39	#include <arch/drivers/tick.h>
40	#include <print.h>	40	#include <print.h>
41	#include <arch/cpu_node.h>	41	#include <arch/cpu_node.h>
42		42
43	/**	43	/**
44	* Finds out the clock frequency of the current CPU.	44	* Finds out the clock frequency of the current CPU.
45	*	45	*
46	* @param node node representing the current CPU in the OFW tree	46	* @param node node representing the current CPU in the OFW tree
47	* @return clock frequency if "node" is the current CPU and no error	47	* @return clock frequency if "node" is the current CPU and no error
48	* occurs, -1 if "node" is not the current CPU or on error	48	* occurs, -1 if "node" is not the current CPU or on error
49	*/	49	*/
50	static int find_cpu_frequency(ofw_tree_node_t *node)	50	static int find_cpu_frequency(ofw_tree_node_t *node)
51	{	51	{
52	ofw_tree_property_t *prop;	52	ofw_tree_property_t *prop;
53	uint32_t mid;	53	uint32_t mid;
54		54
55	/* 'upa-portid' for US, 'portid' for US-III, 'cpuid' for US-IV */	55	/* 'upa-portid' for US, 'portid' for US-III, 'cpuid' for US-IV */
56	prop = ofw_tree_getprop(node, "upa-portid");	56	prop = ofw_tree_getprop(node, "upa-portid");
57	if ((!prop) \|\| (!prop->value))	57	if ((!prop) \|\| (!prop->value))
58	prop = ofw_tree_getprop(node, "portid");	58	prop = ofw_tree_getprop(node, "portid");
59	if ((!prop) \|\| (!prop->value))	59	if ((!prop) \|\| (!prop->value))
60	prop = ofw_tree_getprop(node, "cpuid");	60	prop = ofw_tree_getprop(node, "cpuid");
61		61
62	if (prop && prop->value) {	62	if (prop && prop->value) {
63	mid = ((uint32_t ) prop->value);	63	mid = ((uint32_t ) prop->value);
64	if (mid == CPU->arch.mid) {	64	if (mid == CPU->arch.mid) {
65	prop = ofw_tree_getprop(node, "clock-frequency");	65	prop = ofw_tree_getprop(node, "clock-frequency");
66	if (prop && prop->value) {	66	if (prop && prop->value) {
67	return ((uint32_t ) prop->value);	67	return ((uint32_t ) prop->value);
68	}	68	}
69	}	69	}
70	}	70	}
71		71
72	return -1;	72	return -1;
73	}	73	}
74		74
75	/** Perform sparc64 specific initialization of the processor structure for the	75	/** Perform sparc64 specific initialization of the processor structure for the
76	* current processor.	76	* current processor.
77	*/	77	*/
78	void cpu_arch_init(void)	78	void cpu_arch_init(void)
79	{	79	{
80	ofw_tree_node_t *node;	80	ofw_tree_node_t *node;
81	uint32_t clock_frequency = 0;	81	uint32_t clock_frequency = 0;
82	icbus_config_t icbus_config;	82	icbus_config_t icbus_config;
83		83
84	icbus_config.value = icbus_config_read();	84	icbus_config.value = icbus_config_read();
85	CPU->arch.mid = icbus_config.mid;	85	CPU->arch.mid = icbus_config.mid;
86		86
87	/*	87	/*
88	* Detect processor frequency.	88	* Detect processor frequency.
89	*/	89	*/
90	if (is_us() \|\| is_us_iii()) {	90	if (is_us() \|\| is_us_iii()) {
91	node = ofw_tree_find_child_by_device_type(cpus_parent(), "cpu");	91	node = ofw_tree_find_child_by_device_type(cpus_parent(), "cpu");
92	while (node) {	92	while (node) {
93	int f = find_cpu_frequency(node);	93	int f = find_cpu_frequency(node);
94	if (f != -1)	94	if (f != -1)
95	clock_frequency = (uint32_t) f;	95	clock_frequency = (uint32_t) f;
96	node = ofw_tree_find_peer_by_device_type(node, "cpu");	96	node = ofw_tree_find_peer_by_device_type(node, "cpu");
97	}	97	}
98	} else if (is_us_iv()) {	98	} else if (is_us_iv()) {
99	node = ofw_tree_find_child(cpus_parent(), "cmp");	99	node = ofw_tree_find_child(cpus_parent(), "cmp");
100	while (node) {	100	while (node) {
101	int f;	101	int f;
-		102	f = find_cpu_frequency(
102	f = find_cpu_frequency(ofw_tree_find_child(node, "cpu@0"));	103	ofw_tree_find_child(node, "cpu@0"));
103	if (f != -1)	104	if (f != -1)
104	clock_frequency = (uint32_t) f;	105	clock_frequency = (uint32_t) f;
-		106	f = find_cpu_frequency(
105	f = find_cpu_frequency(ofw_tree_find_child(node, "cpu@1"));	107	ofw_tree_find_child(node, "cpu@1"));
106	if (f != -1)	108	if (f != -1)
107	clock_frequency = (uint32_t) f;	109	clock_frequency = (uint32_t) f;
108	node = ofw_tree_find_peer_by_name(node, "cmp");	110	node = ofw_tree_find_peer_by_name(node, "cmp");
109	}	111	}
110	}	112	}
111		113
112	CPU->arch.clock_frequency = clock_frequency;	114	CPU->arch.clock_frequency = clock_frequency;
113	tick_init();	115	tick_init();
114	}	116	}
115		117
116	/** Read version information from the current processor. */	118	/** Read version information from the current processor. */
117	void cpu_identify(void)	119	void cpu_identify(void)
118	{	120	{
119	CPU->arch.ver.value = ver_read();	121	CPU->arch.ver.value = ver_read();
120	}	122	}
121		123
122	/** Print version information for a processor.	124	/** Print version information for a processor.
123	*	125	*
124	* This function is called by the bootstrap processor.	126	* This function is called by the bootstrap processor.
125	*	127	*
126	* @param m Processor structure of the CPU for which version information is to	128	* @param m Processor structure of the CPU for which version information is to
127	* be printed.	129	* be printed.
128	*/	130	*/
129	void cpu_print_report(cpu_t *m)	131	void cpu_print_report(cpu_t *m)
130	{	132	{
131	char manuf, impl;	133	char manuf, impl;
132		134
133	switch (m->arch.ver.manuf) {	135	switch (m->arch.ver.manuf) {
134	case MANUF_FUJITSU:	136	case MANUF_FUJITSU:
135	manuf = "Fujitsu";	137	manuf = "Fujitsu";
136	break;	138	break;
137	case MANUF_ULTRASPARC:	139	case MANUF_ULTRASPARC:
138	manuf = "UltraSPARC";	140	manuf = "UltraSPARC";
139	break;	141	break;
140	case MANUF_SUN:	142	case MANUF_SUN:
141	manuf = "Sun";	143	manuf = "Sun";
142	break;	144	break;
143	default:	145	default:
144	manuf = "Unknown";	146	manuf = "Unknown";
145	break;	147	break;
146	}	148	}
147		149
148	switch (CPU->arch.ver.impl) {	150	switch (CPU->arch.ver.impl) {
149	case IMPL_ULTRASPARCI:	151	case IMPL_ULTRASPARCI:
150	impl = "UltraSPARC I";	152	impl = "UltraSPARC I";
151	break;	153	break;
152	case IMPL_ULTRASPARCII:	154	case IMPL_ULTRASPARCII:
153	impl = "UltraSPARC II";	155	impl = "UltraSPARC II";
154	break;	156	break;
155	case IMPL_ULTRASPARCII_I:	157	case IMPL_ULTRASPARCII_I:
156	impl = "UltraSPARC IIi";	158	impl = "UltraSPARC IIi";
157	break;	159	break;
158	case IMPL_ULTRASPARCII_E:	160	case IMPL_ULTRASPARCII_E:
159	impl = "UltraSPARC IIe";	161	impl = "UltraSPARC IIe";
160	break;	162	break;
161	case IMPL_ULTRASPARCIII:	163	case IMPL_ULTRASPARCIII:
162	impl = "UltraSPARC III";	164	impl = "UltraSPARC III";
163	break;	165	break;
164	case IMPL_ULTRASPARCIII_PLUS:	166	case IMPL_ULTRASPARCIII_PLUS:
165	impl = "UltraSPARC III+";	167	impl = "UltraSPARC III+";
166	break;	168	break;
167	case IMPL_ULTRASPARCIII_I:	169	case IMPL_ULTRASPARCIII_I:
168	impl = "UltraSPARC IIIi";	170	impl = "UltraSPARC IIIi";
169	break;	171	break;
170	case IMPL_ULTRASPARCIV:	172	case IMPL_ULTRASPARCIV:
171	impl = "UltraSPARC IV";	173	impl = "UltraSPARC IV";
172	break;	174	break;
173	case IMPL_ULTRASPARCIV_PLUS:	175	case IMPL_ULTRASPARCIV_PLUS:
174	impl = "UltraSPARC IV+";	176	impl = "UltraSPARC IV+";
175	break;	177	break;
176	case IMPL_SPARC64V:	178	case IMPL_SPARC64V:
177	impl = "SPARC 64V";	179	impl = "SPARC 64V";
178	break;	180	break;
179	default:	181	default:
180	impl = "Unknown";	182	impl = "Unknown";
181	break;	183	break;
182	}	184	}
183		185
184	printf("cpu%d: manuf=%s, impl=%s, mask=%d (%d MHz)\n", m->id, manuf,	186	printf("cpu%d: manuf=%s, impl=%s, mask=%d (%d MHz)\n", m->id, manuf,
185	impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000);	187	impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000);
186	}	188	}
187		189
188	/** @}	190	/** @}
189	*/	191	*/
190		192

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(root)/branches/sparc/kernel/arch/sparc64/src/cpu/cpu.c – Rev 3582 → 3618