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);
    }
 
    /*
     * Set the D-cache active flag.
     * Needed for the D-cache to work.
     */
    CPU->arch.dcache_active = 1;
}
 
/** 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 1917	Rev 2009
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 current processor. */
48	void cpu_arch_init(void)	48	void cpu_arch_init(void)
49	{	49	{
50	ofw_tree_node_t *node;	50	ofw_tree_node_t *node;
51	uint32_t mid;	51	uint32_t mid;
52	uint32_t clock_frequency = 0;	52	uint32_t clock_frequency = 0;
53	upa_config_t upa_config;	53	upa_config_t upa_config;
54		54
55	upa_config.value = upa_config_read();	55	upa_config.value = upa_config_read();
56	CPU->arch.mid = upa_config.mid;	56	CPU->arch.mid = upa_config.mid;
57		57
58	/*	58	/*
59	* Detect processor frequency.	59	* Detect processor frequency.
60	*/	60	*/
61	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");
62	while (node) {	62	while (node) {
63	ofw_tree_property_t *prop;	63	ofw_tree_property_t *prop;
64		64
65	prop = ofw_tree_getprop(node, "upa-portid");	65	prop = ofw_tree_getprop(node, "upa-portid");
66	if (prop && prop->value) {	66	if (prop && prop->value) {
67	mid = ((uint32_t ) prop->value);	67	mid = ((uint32_t ) prop->value);
68	if (mid == CPU->arch.mid) {	68	if (mid == CPU->arch.mid) {
69	prop = ofw_tree_getprop(node, "clock-frequency");	69	prop = ofw_tree_getprop(node, "clock-frequency");
70	if (prop && prop->value)	70	if (prop && prop->value)
71	clock_frequency = ((uint32_t ) prop->value);	71	clock_frequency = ((uint32_t ) prop->value);
72	}	72	}
73	}	73	}
74	node = ofw_tree_find_peer_by_device_type(node, "cpu");	74	node = ofw_tree_find_peer_by_device_type(node, "cpu");
75	}	75	}
76		76
77	CPU->arch.clock_frequency = clock_frequency;	77	CPU->arch.clock_frequency = clock_frequency;
78	tick_init();	78	tick_init();
79		79
80	/*	80	/*
81	* Lock CPU stack in DTLB.	81	* Lock CPU stack in DTLB.
82	*/	82	*/
83	uintptr_t base = ALIGN_DOWN(config.base, 1<<KERNEL_PAGE_WIDTH);	83	uintptr_t base = ALIGN_DOWN(config.base, 1<<KERNEL_PAGE_WIDTH);
84		84
85	if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1<<KERNEL_PAGE_WIDTH))) {	85	if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1<<KERNEL_PAGE_WIDTH))) {
86	/*	86	/*
87	* Kernel stack of this processor is not locked in DTLB.	87	* Kernel stack of this processor is not locked in DTLB.
88	* First, demap any already existing mappings.	88	* First, demap any already existing mappings.
89	* Second, create a locked mapping for it.	89	* Second, create a locked mapping for it.
90	*/	90	*/
91	dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (uintptr_t) CPU->stack);	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);	92	dtlb_insert_mapping((uintptr_t) CPU->stack, KA2PA(CPU->stack), PAGESIZE_8K, true, true);
93	}	93	}
94		94
-		95	/*
-		96	* Set the D-cache active flag.
-		97	* Needed for the D-cache to work.
-		98	*/
-		99	CPU->arch.dcache_active = 1;
95	}	100	}
96		101
97	/** Read version information from the current processor. */	102	/** Read version information from the current processor. */
98	void cpu_identify(void)	103	void cpu_identify(void)
99	{	104	{
100	CPU->arch.ver.value = ver_read();	105	CPU->arch.ver.value = ver_read();
101	}	106	}
102		107
103	/** Print version information for a processor.	108	/** Print version information for a processor.
104	*	109	*
105	* This function is called by the bootstrap processor.	110	* This function is called by the bootstrap processor.
106	*	111	*
107	* @param m Processor structure of the CPU for which version information is to be printed.	112	* @param m Processor structure of the CPU for which version information is to be printed.
108	*/	113	*/
109	void cpu_print_report(cpu_t *m)	114	void cpu_print_report(cpu_t *m)
110	{	115	{
111	char manuf, impl;	116	char manuf, impl;
112		117
113	switch (m->arch.ver.manuf) {	118	switch (m->arch.ver.manuf) {
114	case MANUF_FUJITSU:	119	case MANUF_FUJITSU:
115	manuf = "Fujitsu";	120	manuf = "Fujitsu";
116	break;	121	break;
117	case MANUF_ULTRASPARC:	122	case MANUF_ULTRASPARC:
118	manuf = "UltraSPARC";	123	manuf = "UltraSPARC";
119	break;	124	break;
120	case MANUF_SUN:	125	case MANUF_SUN:
121	manuf = "Sun";	126	manuf = "Sun";
122	break;	127	break;
123	default:	128	default:
124	manuf = "Unknown";	129	manuf = "Unknown";
125	break;	130	break;
126	}	131	}
127		132
128	switch (CPU->arch.ver.impl) {	133	switch (CPU->arch.ver.impl) {
129	case IMPL_ULTRASPARCI:	134	case IMPL_ULTRASPARCI:
130	impl = "UltraSPARC I";	135	impl = "UltraSPARC I";
131	break;	136	break;
132	case IMPL_ULTRASPARCII:	137	case IMPL_ULTRASPARCII:
133	impl = "UltraSPARC II";	138	impl = "UltraSPARC II";
134	break;	139	break;
135	case IMPL_ULTRASPARCII_I:	140	case IMPL_ULTRASPARCII_I:
136	impl = "UltraSPARC IIi";	141	impl = "UltraSPARC IIi";
137	break;	142	break;
138	case IMPL_ULTRASPARCII_E:	143	case IMPL_ULTRASPARCII_E:
139	impl = "UltraSPARC IIe";	144	impl = "UltraSPARC IIe";
140	break;	145	break;
141	case IMPL_ULTRASPARCIII:	146	case IMPL_ULTRASPARCIII:
142	impl = "UltraSPARC III";	147	impl = "UltraSPARC III";
143	break;	148	break;
144	case IMPL_ULTRASPARCIV_PLUS:	149	case IMPL_ULTRASPARCIV_PLUS:
145	impl = "UltraSPARC IV+";	150	impl = "UltraSPARC IV+";
146	break;	151	break;
147	case IMPL_SPARC64V:	152	case IMPL_SPARC64V:
148	impl = "SPARC 64V";	153	impl = "SPARC 64V";
149	break;	154	break;
150	default:	155	default:
151	impl = "Unknown";	156	impl = "Unknown";
152	break;	157	break;
153	}	158	}
154		159
155	printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n",	160	printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n",
156	m->id, manuf, impl, m->arch.ver.mask, m->arch.clock_frequency/1000000);	161	m->id, manuf, impl, m->arch.ver.mask, m->arch.clock_frequency/1000000);
157	}	162	}
158		163
159	/** @}	164	/** @}
160	*/	165	*/
161		166

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(root)/trunk/kernel/arch/sparc64/src/cpu/cpu.c – Rev 1917 → 2009