WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/ia64/src/mm/page.c


/*
 * Copyright (C) 2006 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.
 */
 
#include <arch/mm/page.h>
#include <arch/types.h>
#include <genarch/mm/page_ht.h>
#include <print.h>
#include <mm/page.h>
#include <config.h>
#include <panic.h>
#include <arch/asm.h>
 
__u64 thash(__u64 va);
__u64 thash(__u64 va)
{
    __u64 ret;
    asm
    (
        "thash %0=%1;;"
        :"=r"(ret)
        :"r" (va)
    );
   
    return ret;
}
 
__u64 ttag(__u64 va);
__u64 ttag(__u64 va)
{
    __u64 ret;
    asm
    (
        "ttag %0=%1;;"
        :"=r"(ret)
        :"r" (va)
    );
   
    return ret;
}
 
 
static void set_VHPT_environment(void)
{
   
 
    /*
    TODO:
    */
   
    int i;
   
    /* First set up REGION REGISTER 0 */
   
    region_register rr;
    rr.map.ve=0;                  /*Disable Walker*/
    rr.map.ps=PAGE_WIDTH;
    rr.map.rid=REGION_RID_MAIN;
   
    asm
    (
        ";;\n"
        "srlz.i;;\n"
        "srlz.d;;\n"
        "{mov rr[r0]=%0};;\n"
        "srlz.i;;\n"
        "srlz.d;;\n"
        ";;\n"
        :
        :"r"(rr.word)
    );
 
           
    /* And Invalidate the rest of REGION REGISTERS */
    for(i=1;i<REGION_REGISTERS;i++)
    {
        rr.map.rid=REGION_RID_FIRST_INVALID+i-1;
        asm
        (
            ";;\n"
/*          "mov r8=%1;;\n"*/
/*          "mov rr[r8]=%0;;\n"*/
            "srlz.i;;\n"
            "srlz.d;;\n"
            "{mov rr[%1]=%0};;\n"
            "srlz.i;;\n"
            "srlz.d;;\n"
            :
            :"r"(rr.word),"r"(i)
            :"r8"
        );
    };
 
   
 
    PTA_register pta;
    pta.map.ve=0;                   /*Disable Walker*/
    pta.map.vf=1;                   /*Large entry format*/
    pta.map.size=VHPT_WIDTH;
    pta.map.base=VHPT_BASE;
   
    return ;
   
    printf("pta struct size:%d\n",sizeof(pta));
   
    /*Write PTA*/
    asm
    (
        "mov cr8=%0;;"
        :
        :"r"(pta.word)
    ); 
    return ;
}  
 
 
void page_arch_init(void)
{
    page_operations = &page_ht_operations;
    pk_disable();
    set_VHPT_environment();
}
 

Rev 728	Rev 746
1	/*	1	/*
2	* Copyright (C) 2006 Jakub Jermar	2	* Copyright (C) 2006 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	#include <arch/mm/page.h>	29	#include <arch/mm/page.h>
30	#include <arch/types.h>	30	#include <arch/types.h>
31	#include <genarch/mm/page_ht.h>	31	#include <genarch/mm/page_ht.h>
32	#include <print.h>	32	#include <print.h>
33	#include <mm/page.h>	33	#include <mm/page.h>
34	#include <config.h>	34	#include <config.h>
35	#include <panic.h>	35	#include <panic.h>
-		36	#include <arch/asm.h>
36		37
37	__u64 thash(__u64 va);	38	__u64 thash(__u64 va);
38	__u64 thash(__u64 va)	39	__u64 thash(__u64 va)
39	{	40	{
40	__u64 ret;	41	__u64 ret;
41	asm	42	asm
42	(	43	(
43	"thash %0=%1;;"	44	"thash %0=%1;;"
44	:"=r"(ret)	45	:"=r"(ret)
45	:"r" (va)	46	:"r" (va)
46	);	47	);
47		48
48	return ret;	49	return ret;
49	}	50	}
50		51
51	__u64 ttag(__u64 va);	52	__u64 ttag(__u64 va);
52	__u64 ttag(__u64 va)	53	__u64 ttag(__u64 va)
53	{	54	{
54	__u64 ret;	55	__u64 ret;
55	asm	56	asm
56	(	57	(
57	"ttag %0=%1;;"	58	"ttag %0=%1;;"
58	:"=r"(ret)	59	:"=r"(ret)
59	:"r" (va)	60	:"r" (va)
60	);	61	);
61		62
62	return ret;	63	return ret;
63	}	64	}
64		65
65		66
66	static void set_VHPT_environment(void)	67	static void set_VHPT_environment(void)
67	{	68	{
68		69
69		70
70	/*	71	/*
71	TODO:	72	TODO:
72	*/	73	*/
73		74
74	int i;	75	int i;
75		76
76	/* First set up REGION REGISTER 0 */	77	/* First set up REGION REGISTER 0 */
77		78
78	region_register rr;	79	region_register rr;
79	rr.map.ve=0; /Disable Walker/	80	rr.map.ve=0; /Disable Walker/
80	rr.map.ps=PAGE_WIDTH;	81	rr.map.ps=PAGE_WIDTH;
81	rr.map.rid=REGION_RID_MAIN;	82	rr.map.rid=REGION_RID_MAIN;
82		83
83	asm	84	asm
84	(	85	(
85	";;\n"	86	";;\n"
86	"srlz.i;;\n"	87	"srlz.i;;\n"
87	"srlz.d;;\n"	88	"srlz.d;;\n"
88	"{mov rr[r0]=%0};;\n"	89	"{mov rr[r0]=%0};;\n"
89	"srlz.i;;\n"	90	"srlz.i;;\n"
90	"srlz.d;;\n"	91	"srlz.d;;\n"
91	";;\n"	92	";;\n"
92	:	93	:
93	:"r"(rr.word)	94	:"r"(rr.word)
94	);	95	);
95		96
96		97
97	/* And Invalidate the rest of REGION REGISTERS */	98	/* And Invalidate the rest of REGION REGISTERS */
98	for(i=1;i<REGION_REGISTERS;i++)	99	for(i=1;i<REGION_REGISTERS;i++)
99	{	100	{
100	rr.map.rid=REGION_RID_FIRST_INVALID+i-1;	101	rr.map.rid=REGION_RID_FIRST_INVALID+i-1;
101	asm	102	asm
102	(	103	(
103	";;\n"	104	";;\n"
104	/* "mov r8=%1;;\n"*/	105	/* "mov r8=%1;;\n"*/
105	/* "mov rr[r8]=%0;;\n"*/	106	/* "mov rr[r8]=%0;;\n"*/
106	"srlz.i;;\n"	107	"srlz.i;;\n"
107	"srlz.d;;\n"	108	"srlz.d;;\n"
108	"{mov rr[%1]=%0};;\n"	109	"{mov rr[%1]=%0};;\n"
109	"srlz.i;;\n"	110	"srlz.i;;\n"
110	"srlz.d;;\n"	111	"srlz.d;;\n"
111	:	112	:
112	:"r"(rr.word),"r"(i)	113	:"r"(rr.word),"r"(i)
113	:"r8"	114	:"r8"
114	);	115	);
115	};	116	};
116		117
117		118
118		119
119	PTA_register pta;	120	PTA_register pta;
120	pta.map.ve=0; /Disable Walker/	121	pta.map.ve=0; /Disable Walker/
121	pta.map.vf=1; /Large entry format/	122	pta.map.vf=1; /Large entry format/
122	pta.map.size=VHPT_WIDTH;	123	pta.map.size=VHPT_WIDTH;
123	pta.map.base=VHPT_BASE;	124	pta.map.base=VHPT_BASE;
124		125
125	return ;	126	return ;
126		127
127	printf("pta struct size:%d\n",sizeof(pta));	128	printf("pta struct size:%d\n",sizeof(pta));
128		129
129	/Write PTA/	130	/Write PTA/
130	asm	131	asm
131	(	132	(
132	"mov cr8=%0;;"	133	"mov cr8=%0;;"
133	:	134	:
134	:"r"(pta.word)	135	:"r"(pta.word)
135	);	136	);
136	return ;	137	return ;
137	}	138	}
138		139
139		140
140	void page_arch_init(void)	141	void page_arch_init(void)
141	{	142	{
142	page_operations = &page_ht_operations;	143	page_operations = &page_ht_operations;
-		144	pk_disable();
143	set_VHPT_environment();	145	set_VHPT_environment();
144	}	146	}
145		147

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(root)/kernel/trunk/arch/ia64/src/mm/page.c – Rev 728 → 746