WebSVN – HelenOS – Diff – /trunk/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/asm.h>
#include <cpu.h>
#include <arch.h>
#include <print.h>
#include <arch/register.h>
#include <genarch/ofw/ofw_tree.h>
#include <arch/types.h>
#include <arch/drivers/tick.h>
#include <arch/mm/page.h>
#include <arch/mm/tlb.h>
#include <macros.h>
 
/** Perform sparc64 specific initialization of the processor structure for the
 * current processor.
 */
void cpu_arch_init(void)
{
    ofw_tree_node_t *node;
    uint32_t mid;
    uint32_t clock_frequency = 0;
    upa_config_t upa_config;
   
    upa_config.value = upa_config_read();
    CPU->arch.mid = upa_config.mid;
   
    /*
     * Detect processor frequency.
     */
    node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu");
    while (node) {
        ofw_tree_property_t *prop;
       
        prop = ofw_tree_getprop(node, "upa-portid");
        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)
                    clock_frequency = *((uint32_t *)
                        prop->value);
            }
        }
        node = ofw_tree_find_peer_by_device_type(node, "cpu");
    }
 
    CPU->arch.clock_frequency = clock_frequency;
    tick_init();
   
    /*
     * Lock CPU stack in DTLB.
     */
    uintptr_t base = ALIGN_DOWN(config.base, 1 << KERNEL_PAGE_WIDTH);
         
    if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1 <<
        KERNEL_PAGE_WIDTH))) {
        /*
         * Kernel stack of this processor is not locked in DTLB.
         * First, demap any already existing mappings.
         * Second, create a locked mapping for it.
         */
        dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (uintptr_t)
            CPU->stack);
        dtlb_insert_mapping((uintptr_t) CPU->stack, KA2PA(CPU->stack),
            PAGESIZE_8K, true, true);
    }
}
 
/** 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_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 (%dMHz)\n", m->id, manuf,
        impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000);
}
 
/** @}
 */
 

Rev 2038	Rev 2049
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/asm.h>	35	#include <arch/asm.h>
36	#include <cpu.h>	36	#include <cpu.h>
37	#include <arch.h>	37	#include <arch.h>
38	#include <print.h>	38	#include <print.h>
39	#include <arch/register.h>	39	#include <arch/register.h>
40	#include <genarch/ofw/ofw_tree.h>	40	#include <genarch/ofw/ofw_tree.h>
41	#include <arch/types.h>	41	#include <arch/types.h>
42	#include <arch/drivers/tick.h>	42	#include <arch/drivers/tick.h>
43	#include <arch/mm/page.h>	43	#include <arch/mm/page.h>
44	#include <arch/mm/tlb.h>	44	#include <arch/mm/tlb.h>
45	#include <macros.h>	45	#include <macros.h>
46		46
47	/** Perform sparc64 specific initialization of the processor structure for the current processor. */	47	/** Perform sparc64 specific initialization of the processor structure for the
-		48	* current processor.
-		49	*/
48	void cpu_arch_init(void)	50	void cpu_arch_init(void)
49	{	51	{
50	ofw_tree_node_t *node;	52	ofw_tree_node_t *node;
51	uint32_t mid;	53	uint32_t mid;
52	uint32_t clock_frequency = 0;	54	uint32_t clock_frequency = 0;
53	upa_config_t upa_config;	55	upa_config_t upa_config;
54		56
55	upa_config.value = upa_config_read();	57	upa_config.value = upa_config_read();
56	CPU->arch.mid = upa_config.mid;	58	CPU->arch.mid = upa_config.mid;
57		59
58	/*	60	/*
59	* Detect processor frequency.	61	* Detect processor frequency.
60	*/	62	*/
61	node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu");	63	node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu");
62	while (node) {	64	while (node) {
63	ofw_tree_property_t *prop;	65	ofw_tree_property_t *prop;
64		66
65	prop = ofw_tree_getprop(node, "upa-portid");	67	prop = ofw_tree_getprop(node, "upa-portid");
66	if (prop && prop->value) {	68	if (prop && prop->value) {
67	mid = ((uint32_t ) prop->value);	69	mid = ((uint32_t ) prop->value);
68	if (mid == CPU->arch.mid) {	70	if (mid == CPU->arch.mid) {
69	prop = ofw_tree_getprop(node, "clock-frequency");	71	prop = ofw_tree_getprop(node,
-		72	"clock-frequency");
70	if (prop && prop->value)	73	if (prop && prop->value)
71	clock_frequency = ((uint32_t ) prop->value);	74	clock_frequency = ((uint32_t )
-		75	prop->value);
72	}	76	}
73	}	77	}
74	node = ofw_tree_find_peer_by_device_type(node, "cpu");	78	node = ofw_tree_find_peer_by_device_type(node, "cpu");
75	}	79	}
76		80
77	CPU->arch.clock_frequency = clock_frequency;	81	CPU->arch.clock_frequency = clock_frequency;
78	tick_init();	82	tick_init();
79		83
80	/*	84	/*
81	* Lock CPU stack in DTLB.	85	* Lock CPU stack in DTLB.
82	*/	86	*/
83	uintptr_t base = ALIGN_DOWN(config.base, 1<<KERNEL_PAGE_WIDTH);	87	uintptr_t base = ALIGN_DOWN(config.base, 1 << KERNEL_PAGE_WIDTH);
84		88
85	if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1<<KERNEL_PAGE_WIDTH))) {	89	if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1 <<
-		90	KERNEL_PAGE_WIDTH))) {
86	/*	91	/*
87	* Kernel stack of this processor is not locked in DTLB.	92	* Kernel stack of this processor is not locked in DTLB.
88	* First, demap any already existing mappings.	93	* First, demap any already existing mappings.
89	* Second, create a locked mapping for it.	94	* Second, create a locked mapping for it.
90	*/	95	*/
91	dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (uintptr_t) CPU->stack);	96	dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (uintptr_t)
-		97	CPU->stack);
92	dtlb_insert_mapping((uintptr_t) CPU->stack, KA2PA(CPU->stack), PAGESIZE_8K, true, true);	98	dtlb_insert_mapping((uintptr_t) CPU->stack, KA2PA(CPU->stack),
-		99	PAGESIZE_8K, true, true);
93	}	100	}
94	}	101	}
95		102
96	/** Read version information from the current processor. */	103	/** Read version information from the current processor. */
97	void cpu_identify(void)	104	void cpu_identify(void)
98	{	105	{
99	CPU->arch.ver.value = ver_read();	106	CPU->arch.ver.value = ver_read();
100	}	107	}
101		108
102	/** Print version information for a processor.	109	/** Print version information for a processor.
103	*	110	*
104	* This function is called by the bootstrap processor.	111	* This function is called by the bootstrap processor.
105	*	112	*
106	* @param m Processor structure of the CPU for which version information is to be printed.	113	* @param m Processor structure of the CPU for which version information is to
-		114	* be printed.
107	*/	115	*/
108	void cpu_print_report(cpu_t *m)	116	void cpu_print_report(cpu_t *m)
109	{	117	{
110	char manuf, impl;	118	char manuf, impl;
111		119
112	switch (m->arch.ver.manuf) {	120	switch (m->arch.ver.manuf) {
113	case MANUF_FUJITSU:	121	case MANUF_FUJITSU:
114	manuf = "Fujitsu";	122	manuf = "Fujitsu";
115	break;	123	break;
116	case MANUF_ULTRASPARC:	124	case MANUF_ULTRASPARC:
117	manuf = "UltraSPARC";	125	manuf = "UltraSPARC";
118	break;	126	break;
119	case MANUF_SUN:	127	case MANUF_SUN:
120	manuf = "Sun";	128	manuf = "Sun";
121	break;	129	break;
122	default:	130	default:
123	manuf = "Unknown";	131	manuf = "Unknown";
124	break;	132	break;
125	}	133	}
126		134
127	switch (CPU->arch.ver.impl) {	135	switch (CPU->arch.ver.impl) {
128	case IMPL_ULTRASPARCI:	136	case IMPL_ULTRASPARCI:
129	impl = "UltraSPARC I";	137	impl = "UltraSPARC I";
130	break;	138	break;
131	case IMPL_ULTRASPARCII:	139	case IMPL_ULTRASPARCII:
132	impl = "UltraSPARC II";	140	impl = "UltraSPARC II";
133	break;	141	break;
134	case IMPL_ULTRASPARCII_I:	142	case IMPL_ULTRASPARCII_I:
135	impl = "UltraSPARC IIi";	143	impl = "UltraSPARC IIi";
136	break;	144	break;
137	case IMPL_ULTRASPARCII_E:	145	case IMPL_ULTRASPARCII_E:
138	impl = "UltraSPARC IIe";	146	impl = "UltraSPARC IIe";
139	break;	147	break;
140	case IMPL_ULTRASPARCIII:	148	case IMPL_ULTRASPARCIII:
141	impl = "UltraSPARC III";	149	impl = "UltraSPARC III";
142	break;	150	break;
143	case IMPL_ULTRASPARCIV_PLUS:	151	case IMPL_ULTRASPARCIV_PLUS:
144	impl = "UltraSPARC IV+";	152	impl = "UltraSPARC IV+";
145	break;	153	break;
146	case IMPL_SPARC64V:	154	case IMPL_SPARC64V:
147	impl = "SPARC 64V";	155	impl = "SPARC 64V";
148	break;	156	break;
149	default:	157	default:
150	impl = "Unknown";	158	impl = "Unknown";
151	break;	159	break;
152	}	160	}
153		161
154	printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n",	162	printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n", m->id, manuf,
155	m->id, manuf, impl, m->arch.ver.mask, m->arch.clock_frequency/1000000);	163	impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000);
156	}	164	}
157		165
158	/** @}	166	/** @}
159	*/	167	*/
160		168

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/sparc64/src/cpu/cpu.c – Rev 2038 → 2049