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 1903	Rev 1917
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>
-		44	#include <arch/mm/tlb.h>
-		45	#include <macros.h>
43		46
44	/** Perform sparc64 specific initialization of the processor structure for the current processor. */	47	/** Perform sparc64 specific initialization of the processor structure for the current processor. */
45	void cpu_arch_init(void)	48	void cpu_arch_init(void)
46	{	49	{
47	ofw_tree_node_t *node;	50	ofw_tree_node_t *node;
48	uint32_t mid;	51	uint32_t mid;
49	uint32_t clock_frequency = 0;	52	uint32_t clock_frequency = 0;
50	upa_config_t upa_config;	53	upa_config_t upa_config;
51		54
52	upa_config.value = upa_config_read();	55	upa_config.value = upa_config_read();
53	CPU->arch.mid = upa_config.mid;	56	CPU->arch.mid = upa_config.mid;
54		57
-		58	/*
-		59	* Detect processor frequency.
-		60	*/
55	node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu");	61	node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu");
56	while (node) {	62	while (node) {
57	ofw_tree_property_t *prop;	63	ofw_tree_property_t *prop;
58		64
59	prop = ofw_tree_getprop(node, "upa-portid");	65	prop = ofw_tree_getprop(node, "upa-portid");
60	if (prop && prop->value) {	66	if (prop && prop->value) {
61	mid = ((uint32_t ) prop->value);	67	mid = ((uint32_t ) prop->value);
62	if (mid == CPU->arch.mid) {	68	if (mid == CPU->arch.mid) {
63	prop = ofw_tree_getprop(node, "clock-frequency");	69	prop = ofw_tree_getprop(node, "clock-frequency");
64	if (prop && prop->value)	70	if (prop && prop->value)
65	clock_frequency = ((uint32_t ) prop->value);	71	clock_frequency = ((uint32_t ) prop->value);
66	}	72	}
67	}	73	}
68	node = ofw_tree_find_peer_by_device_type(node, "cpu");	74	node = ofw_tree_find_peer_by_device_type(node, "cpu");
69	}	75	}
70		76
71	CPU->arch.clock_frequency = clock_frequency;	77	CPU->arch.clock_frequency = clock_frequency;
72	tick_init();	78	tick_init();
-		79
-		80	/*
-		81	* Lock CPU stack in DTLB.
-		82	*/
-		83	uintptr_t base = ALIGN_DOWN(config.base, 1<<KERNEL_PAGE_WIDTH);
-		84
-		85	if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1<<KERNEL_PAGE_WIDTH))) {
-		86	/*
-		87	* Kernel stack of this processor is not locked in DTLB.
-		88	* First, demap any already existing mappings.
-		89	* Second, create a locked mapping for it.
-		90	*/
-		91	dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (uintptr_t) CPU->stack);
-		92	dtlb_insert_mapping((uintptr_t) CPU->stack, KA2PA(CPU->stack), PAGESIZE_8K, true, true);
-		93	}
-		94
73	}	95	}
74		96
75	/** Read version information from the current processor. */	97	/** Read version information from the current processor. */
76	void cpu_identify(void)	98	void cpu_identify(void)
77	{	99	{
78	CPU->arch.ver.value = ver_read();	100	CPU->arch.ver.value = ver_read();
79	}	101	}
80		102
81	/** Print version information for a processor.	103	/** Print version information for a processor.
82	*	104	*
83	* This function is called by the bootstrap processor.	105	* This function is called by the bootstrap processor.
84	*	106	*
85	* @param m Processor structure of the CPU for which version information is to be printed.	107	* @param m Processor structure of the CPU for which version information is to be printed.
86	*/	108	*/
87	void cpu_print_report(cpu_t *m)	109	void cpu_print_report(cpu_t *m)
88	{	110	{
89	char manuf, impl;	111	char manuf, impl;
90		112
91	switch (m->arch.ver.manuf) {	113	switch (m->arch.ver.manuf) {
92	case MANUF_FUJITSU:	114	case MANUF_FUJITSU:
93	manuf = "Fujitsu";	115	manuf = "Fujitsu";
94	break;	116	break;
95	case MANUF_ULTRASPARC:	117	case MANUF_ULTRASPARC:
96	manuf = "UltraSPARC";	118	manuf = "UltraSPARC";
97	break;	119	break;
98	case MANUF_SUN:	120	case MANUF_SUN:
99	manuf = "Sun";	121	manuf = "Sun";
100	break;	122	break;
101	default:	123	default:
102	manuf = "Unknown";	124	manuf = "Unknown";
103	break;	125	break;
104	}	126	}
105		127
106	switch (CPU->arch.ver.impl) {	128	switch (CPU->arch.ver.impl) {
107	case IMPL_ULTRASPARCI:	129	case IMPL_ULTRASPARCI:
108	impl = "UltraSPARC I";	130	impl = "UltraSPARC I";
109	break;	131	break;
110	case IMPL_ULTRASPARCII:	132	case IMPL_ULTRASPARCII:
111	impl = "UltraSPARC II";	133	impl = "UltraSPARC II";
112	break;	134	break;
113	case IMPL_ULTRASPARCII_I:	135	case IMPL_ULTRASPARCII_I:
114	impl = "UltraSPARC IIi";	136	impl = "UltraSPARC IIi";
115	break;	137	break;
116	case IMPL_ULTRASPARCII_E:	138	case IMPL_ULTRASPARCII_E:
117	impl = "UltraSPARC IIe";	139	impl = "UltraSPARC IIe";
118	break;	140	break;
119	case IMPL_ULTRASPARCIII:	141	case IMPL_ULTRASPARCIII:
120	impl = "UltraSPARC III";	142	impl = "UltraSPARC III";
121	break;	143	break;
122	case IMPL_ULTRASPARCIV_PLUS:	144	case IMPL_ULTRASPARCIV_PLUS:
123	impl = "UltraSPARC IV+";	145	impl = "UltraSPARC IV+";
124	break;	146	break;
125	case IMPL_SPARC64V:	147	case IMPL_SPARC64V:
126	impl = "SPARC 64V";	148	impl = "SPARC 64V";
127	break;	149	break;
128	default:	150	default:
129	impl = "Unknown";	151	impl = "Unknown";
130	break;	152	break;
131	}	153	}
132		154
133	printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n",	155	printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n",
134	m->id, manuf, impl, m->arch.ver.mask, m->arch.clock_frequency/1000000);	156	m->id, manuf, impl, m->arch.ver.mask, m->arch.clock_frequency/1000000);
135	}	157	}
136		158
137	/** @}	159	/** @}
138	*/	160	*/
139		161

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/sparc64/src/cpu/cpu.c – Rev 1903 → 1917