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;
 
   
 
    CPU->arch.mid = read_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 3618	Rev 3664
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;	-
83		82
84	icbus_config.value = icbus_config_read();	-
85	CPU->arch.mid = icbus_config.mid;	83	CPU->arch.mid = read_mid();
86		84
87	/*	85	/*
88	* Detect processor frequency.	86	* Detect processor frequency.
89	*/	87	*/
90	if (is_us() \|\| is_us_iii()) {	88	if (is_us() \|\| is_us_iii()) {
91	node = ofw_tree_find_child_by_device_type(cpus_parent(), "cpu");	89	node = ofw_tree_find_child_by_device_type(cpus_parent(), "cpu");
92	while (node) {	90	while (node) {
93	int f = find_cpu_frequency(node);	91	int f = find_cpu_frequency(node);
94	if (f != -1)	92	if (f != -1)
95	clock_frequency = (uint32_t) f;	93	clock_frequency = (uint32_t) f;
96	node = ofw_tree_find_peer_by_device_type(node, "cpu");	94	node = ofw_tree_find_peer_by_device_type(node, "cpu");
97	}	95	}
98	} else if (is_us_iv()) {	96	} else if (is_us_iv()) {
99	node = ofw_tree_find_child(cpus_parent(), "cmp");	97	node = ofw_tree_find_child(cpus_parent(), "cmp");
100	while (node) {	98	while (node) {
101	int f;	99	int f;
102	f = find_cpu_frequency(	100	f = find_cpu_frequency(
103	ofw_tree_find_child(node, "cpu@0"));	101	ofw_tree_find_child(node, "cpu@0"));
104	if (f != -1)	102	if (f != -1)
105	clock_frequency = (uint32_t) f;	103	clock_frequency = (uint32_t) f;
106	f = find_cpu_frequency(	104	f = find_cpu_frequency(
107	ofw_tree_find_child(node, "cpu@1"));	105	ofw_tree_find_child(node, "cpu@1"));
108	if (f != -1)	106	if (f != -1)
109	clock_frequency = (uint32_t) f;	107	clock_frequency = (uint32_t) f;
110	node = ofw_tree_find_peer_by_name(node, "cmp");	108	node = ofw_tree_find_peer_by_name(node, "cmp");
111	}	109	}
112	}	110	}
113		111
114	CPU->arch.clock_frequency = clock_frequency;	112	CPU->arch.clock_frequency = clock_frequency;
115	tick_init();	113	tick_init();
116	}	114	}
117		115
118	/** Read version information from the current processor. */	116	/** Read version information from the current processor. */
119	void cpu_identify(void)	117	void cpu_identify(void)
120	{	118	{
121	CPU->arch.ver.value = ver_read();	119	CPU->arch.ver.value = ver_read();
122	}	120	}
123		121
124	/** Print version information for a processor.	122	/** Print version information for a processor.
125	*	123	*
126	* This function is called by the bootstrap processor.	124	* This function is called by the bootstrap processor.
127	*	125	*
128	* @param m Processor structure of the CPU for which version information is to	126	* @param m Processor structure of the CPU for which version information is to
129	* be printed.	127	* be printed.
130	*/	128	*/
131	void cpu_print_report(cpu_t *m)	129	void cpu_print_report(cpu_t *m)
132	{	130	{
133	char manuf, impl;	131	char manuf, impl;
134		132
135	switch (m->arch.ver.manuf) {	133	switch (m->arch.ver.manuf) {
136	case MANUF_FUJITSU:	134	case MANUF_FUJITSU:
137	manuf = "Fujitsu";	135	manuf = "Fujitsu";
138	break;	136	break;
139	case MANUF_ULTRASPARC:	137	case MANUF_ULTRASPARC:
140	manuf = "UltraSPARC";	138	manuf = "UltraSPARC";
141	break;	139	break;
142	case MANUF_SUN:	140	case MANUF_SUN:
143	manuf = "Sun";	141	manuf = "Sun";
144	break;	142	break;
145	default:	143	default:
146	manuf = "Unknown";	144	manuf = "Unknown";
147	break;	145	break;
148	}	146	}
149		147
150	switch (CPU->arch.ver.impl) {	148	switch (CPU->arch.ver.impl) {
151	case IMPL_ULTRASPARCI:	149	case IMPL_ULTRASPARCI:
152	impl = "UltraSPARC I";	150	impl = "UltraSPARC I";
153	break;	151	break;
154	case IMPL_ULTRASPARCII:	152	case IMPL_ULTRASPARCII:
155	impl = "UltraSPARC II";	153	impl = "UltraSPARC II";
156	break;	154	break;
157	case IMPL_ULTRASPARCII_I:	155	case IMPL_ULTRASPARCII_I:
158	impl = "UltraSPARC IIi";	156	impl = "UltraSPARC IIi";
159	break;	157	break;
160	case IMPL_ULTRASPARCII_E:	158	case IMPL_ULTRASPARCII_E:
161	impl = "UltraSPARC IIe";	159	impl = "UltraSPARC IIe";
162	break;	160	break;
163	case IMPL_ULTRASPARCIII:	161	case IMPL_ULTRASPARCIII:
164	impl = "UltraSPARC III";	162	impl = "UltraSPARC III";
165	break;	163	break;
166	case IMPL_ULTRASPARCIII_PLUS:	164	case IMPL_ULTRASPARCIII_PLUS:
167	impl = "UltraSPARC III+";	165	impl = "UltraSPARC III+";
168	break;	166	break;
169	case IMPL_ULTRASPARCIII_I:	167	case IMPL_ULTRASPARCIII_I:
170	impl = "UltraSPARC IIIi";	168	impl = "UltraSPARC IIIi";
171	break;	169	break;
172	case IMPL_ULTRASPARCIV:	170	case IMPL_ULTRASPARCIV:
173	impl = "UltraSPARC IV";	171	impl = "UltraSPARC IV";
174	break;	172	break;
175	case IMPL_ULTRASPARCIV_PLUS:	173	case IMPL_ULTRASPARCIV_PLUS:
176	impl = "UltraSPARC IV+";	174	impl = "UltraSPARC IV+";
177	break;	175	break;
178	case IMPL_SPARC64V:	176	case IMPL_SPARC64V:
179	impl = "SPARC 64V";	177	impl = "SPARC 64V";
180	break;	178	break;
181	default:	179	default:
182	impl = "Unknown";	180	impl = "Unknown";
183	break;	181	break;
184	}	182	}
185		183
186	printf("cpu%d: manuf=%s, impl=%s, mask=%d (%d MHz)\n", m->id, manuf,	184	printf("cpu%d: manuf=%s, impl=%s, mask=%d (%d MHz)\n", m->id, manuf,
187	impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000);	185	impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000);
188	}	186	}
189		187
190	/** @}	188	/** @}
191	*/	189	*/
192		190

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(root)/branches/sparc/kernel/arch/sparc64/src/cpu/cpu.c – Rev 3618 → 3664