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>
 
__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;
    set_VHPT_environment();
}
 

Rev 726	Rev 728
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 <mm/page.h>	33	#include <mm/page.h>
33	#include <config.h>	34	#include <config.h>
34	#include <panic.h>	35	#include <panic.h>
35		36
36	__u64 thash(__u64 va);	37	__u64 thash(__u64 va);
37	__u64 thash(__u64 va)	38	__u64 thash(__u64 va)
38	{	39	{
39	__u64 ret;	40	__u64 ret;
40	asm	41	asm
41	(	42	(
42	"thash %0=%1;;"	43	"thash %0=%1;;"
43	:"=r"(ret)	44	:"=r"(ret)
44	:"r" (va)	45	:"r" (va)
45	);	46	);
46		47
47	return ret;	48	return ret;
48	}	49	}
49		50
50	__u64 ttag(__u64 va);	51	__u64 ttag(__u64 va);
51	__u64 ttag(__u64 va)	52	__u64 ttag(__u64 va)
52	{	53	{
53	__u64 ret;	54	__u64 ret;
54	asm	55	asm
55	(	56	(
56	"ttag %0=%1;;"	57	"ttag %0=%1;;"
57	:"=r"(ret)	58	:"=r"(ret)
58	:"r" (va)	59	:"r" (va)
59	);	60	);
60		61
61	return ret;	62	return ret;
62	}	63	}
63		64
64		65
65	static void set_VHPT_environment(void)	66	static void set_VHPT_environment(void)
66	{	67	{
67	return;	68
68		69
69	/*	70	/*
70	TODO:	71	TODO:
71	*/	72	*/
72		73
73	int i;	74	int i;
74		75
75	/* First set up REGION REGISTER 0 */	76	/* First set up REGION REGISTER 0 */
76		77
77	region_register rr;	78	region_register rr;
78	rr.map.ve=0; /Disable Walker/	79	rr.map.ve=0; /Disable Walker/
79	rr.map.ps=PAGE_WIDTH;	80	rr.map.ps=PAGE_WIDTH;
80	rr.map.rid=REGION_RID_MAIN;	81	rr.map.rid=REGION_RID_MAIN;
81		82
82	asm	83	asm
83	(	84	(
-		85	";;\n"
-		86	"srlz.i;;\n"
-		87	"srlz.d;;\n"
84	"mov rr[r0]=%0;;"	88	"{mov rr[r0]=%0};;\n"
-		89	"srlz.i;;\n"
-		90	"srlz.d;;\n"
-		91	";;\n"
85	:	92	:
86	:"r"(rr.word)	93	:"r"(rr.word)
87	);	94	);
-		95
88		96
89	/* And Invalidate the rest of REGION REGISTERS */	97	/* And Invalidate the rest of REGION REGISTERS */
90		-
91	for(i=1;i<REGION_REGISTERS;i++)	98	for(i=1;i<REGION_REGISTERS;i++)
92	{	99	{
93	rr.map.rid=REGION_RID_FIRST_INVALID+i-1;	100	rr.map.rid=REGION_RID_FIRST_INVALID+i-1;
94	asm	101	asm
95	(	102	(
-		103	";;\n"
96	"mov r8=%1;;"	104	/* "mov r8=%1;;\n"*/
97	"mov rr[r8]=%0;;"	105	/* "mov rr[r8]=%0;;\n"*/
-		106	"srlz.i;;\n"
-		107	"srlz.d;;\n"
-		108	"{mov rr[%1]=%0};;\n"
-		109	"srlz.i;;\n"
-		110	"srlz.d;;\n"
98	:	111	:
99	:"r"(rr.word),"r"(i)	112	:"r"(rr.word),"r"(i)
100	:"r8"	113	:"r8"
101	);	114	);
102	};	115	};
103		116
-		117
-		118
104	PTA_register pta;	119	PTA_register pta;
105	pta.map.ve=0; /Disable Walker/	120	pta.map.ve=0; /Disable Walker/
106	pta.map.vf=1; /Large entry format/	121	pta.map.vf=1; /Large entry format/
107	pta.map.size=VHPT_WIDTH;	122	pta.map.size=VHPT_WIDTH;
108	pta.map.base=VHPT_BASE;	123	pta.map.base=VHPT_BASE;
109		124
-		125	return ;
-		126
-		127	printf("pta struct size:%d\n",sizeof(pta));
110		128
111	/Write PTA/	129	/Write PTA/
112	asm	130	asm
113	(	131	(
114	"mov cr8=%0;;"	132	"mov cr8=%0;;"
115	:	133	:
116	:"r"(pta.word)	134	:"r"(pta.word)
117	);	135	);
118		136	return ;
119	}	137	}
120		138
121		139
122	void page_arch_init(void)	140	void page_arch_init(void)
123	{	141	{
124	page_operations = &page_ht_operations;	142	page_operations = &page_ht_operations;
125	set_VHPT_environment();	143	set_VHPT_environment();
126	}	144	}
127		145

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/ia64/src/mm/page.c – Rev 726 → 728