WebSVN – HelenOS – Diff – /branches/dynload/kernel/arch/ia32/src/mm/frame.c


/*
 * Copyright (c) 2008 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 ia32mm 
 * @{
 */
/** @file
 * @ingroup ia32mm, amd64mm
 */
 
#include <mm/frame.h>
#include <arch/mm/frame.h>
#include <mm/as.h>
#include <config.h>
#include <arch/boot/boot.h>
#include <arch/boot/memmap.h>
#include <panic.h>
#include <debug.h>
#include <align.h>
#include <macros.h>
 
#include <print.h>
 
size_t hardcoded_unmapped_ktext_size = 0;
size_t hardcoded_unmapped_kdata_size = 0;
 
uintptr_t last_frame = 0;
 
static void init_e820_memory(pfn_t minconf)
{
    unsigned int i;
    for (i = 0; i < e820counter; i++) {
        uint64_t base = e820table[i].base_address;
        uint64_t size = e820table[i].size;
       
#ifdef __32_BITS__
       
        /* Ignore physical memory above 4 GB */
        if ((base >> 32) != 0)
            continue;
       
        /* Clip regions above 4 GB */
        if (((base + size) >> 32) != 0)
            size = 0xffffffff - base;
       
#endif
        pfn_t pfn;
        size_t count;
       
        if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) {
            /* To be safe, make available zone possibly smaller */
            pfn = ADDR2PFN(ALIGN_UP(base, FRAME_SIZE));
            count = SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE));
           
            pfn_t conf;
            if ((minconf < pfn) || (minconf >= pfn + count))
                conf = pfn;
            else
                conf = minconf;
           
            zone_create(pfn, count, conf, ZONE_AVAILABLE);
           
            // XXX this has to be removed
            if (last_frame < ALIGN_UP(base + size, FRAME_SIZE))
                last_frame = ALIGN_UP(base + size, FRAME_SIZE);
        }
       
        if (e820table[i].type == MEMMAP_MEMORY_RESERVED) {
            /* To be safe, make reserved zone possibly larger */
            pfn = ADDR2PFN(ALIGN_DOWN(base, FRAME_SIZE));
            count = SIZE2FRAMES(ALIGN_UP(size, FRAME_SIZE));
           
            zone_create(pfn, count, 0, ZONE_RESERVED);
        }
       
        if (e820table[i].type == MEMMAP_MEMORY_ACPI) {
            /* To be safe, make firmware zone possibly larger */
            pfn = ADDR2PFN(ALIGN_DOWN(base, (uintptr_t) FRAME_SIZE));
            count = SIZE2FRAMES(ALIGN_UP(size, (uintptr_t) FRAME_SIZE));
           
            zone_create(pfn, count, 0, ZONE_FIRMWARE);
        }
    }
}
 
static char *e820names[] = {
    "invalid",
    "available",
    "reserved",
    "acpi",
    "nvs",
    "unusable"
};
 
 
void physmem_print(void)
{
    unsigned int i;
    char *name;
   
    printf("Base               Size               Name\n");
    printf("------------------ ------------------ ---------\n");
       
    for (i = 0; i < e820counter; i++) {
        if (e820table[i].type <= MEMMAP_MEMORY_UNUSABLE)
            name = e820names[e820table[i].type];
        else
            name = "invalid";
       
        printf("%#18llx %#18llx %s\n", e820table[i].base_address,
            e820table[i].size, name);
    }
}
 
 
void frame_arch_init(void)
{
    pfn_t minconf;
   
    if (config.cpu_active == 1) {
        minconf = 1;
       
#ifdef CONFIG_SMP
        minconf = max(minconf,
            ADDR2PFN(AP_BOOT_OFFSET + hardcoded_unmapped_ktext_size +
            hardcoded_unmapped_kdata_size));
#endif
        init_e820_memory(minconf);
       
        /* Reserve frame 0 (BIOS data) */
        frame_mark_unavailable(0, 1);
       
#ifdef CONFIG_SMP
        /* Reserve AP real mode bootstrap memory */
        frame_mark_unavailable(AP_BOOT_OFFSET >> FRAME_WIDTH,
            (hardcoded_unmapped_ktext_size +
            hardcoded_unmapped_kdata_size) >> FRAME_WIDTH);
#endif
    }
}
 
/** @}
 */
 

Rev 4344	Rev 4691
1	/*	1	/*
2	* Copyright (c) 2008 Jakub Jermar	2	* Copyright (c) 2008 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 ia32mm	29	/** @addtogroup ia32mm
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	* @ingroup ia32mm, amd64mm	33	* @ingroup ia32mm, amd64mm
34	*/	34	*/
35		35
36	#include <mm/frame.h>	36	#include <mm/frame.h>
37	#include <arch/mm/frame.h>	37	#include <arch/mm/frame.h>
38	#include <mm/as.h>	38	#include <mm/as.h>
39	#include <config.h>	39	#include <config.h>
40	#include <arch/boot/boot.h>	40	#include <arch/boot/boot.h>
41	#include <arch/boot/memmap.h>	41	#include <arch/boot/memmap.h>
42	#include <panic.h>	42	#include <panic.h>
43	#include <debug.h>	43	#include <debug.h>
44	#include <align.h>	44	#include <align.h>
45	#include <macros.h>	45	#include <macros.h>
46		46
47	#include <print.h>	47	#include <print.h>
48		48
49	size_t hardcoded_unmapped_ktext_size = 0;	49	size_t hardcoded_unmapped_ktext_size = 0;
50	size_t hardcoded_unmapped_kdata_size = 0;	50	size_t hardcoded_unmapped_kdata_size = 0;
51		51
52	uintptr_t last_frame = 0;	52	uintptr_t last_frame = 0;
53		53
54	static void init_e820_memory(pfn_t minconf)	54	static void init_e820_memory(pfn_t minconf)
55	{	55	{
56	unsigned int i;	56	unsigned int i;
57	for (i = 0; i < e820counter; i++) {	57	for (i = 0; i < e820counter; i++) {
58	uint64_t base = e820table[i].base_address;	58	uint64_t base = e820table[i].base_address;
59	uint64_t size = e820table[i].size;	59	uint64_t size = e820table[i].size;
60		60
61	#ifdef __32_BITS__	61	#ifdef __32_BITS__
62		62
63	/* Ignore physical memory above 4 GB */	63	/* Ignore physical memory above 4 GB */
64	if ((base >> 32) != 0)	64	if ((base >> 32) != 0)
65	continue;	65	continue;
66		66
67	/* Clip regions above 4 GB */	67	/* Clip regions above 4 GB */
68	if (((base + size) >> 32) != 0)	68	if (((base + size) >> 32) != 0)
69	size = 0xffffffff - base;	69	size = 0xffffffff - base;
70		70
71	#endif	71	#endif
72	pfn_t pfn;	72	pfn_t pfn;
73	count_t count;	73	size_t count;
74		74
75	if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) {	75	if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) {
76	/* To be safe, make available zone possibly smaller */	76	/* To be safe, make available zone possibly smaller */
77	pfn = ADDR2PFN(ALIGN_UP(base, FRAME_SIZE));	77	pfn = ADDR2PFN(ALIGN_UP(base, FRAME_SIZE));
78	count = SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE));	78	count = SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE));
79		79
80	pfn_t conf;	80	pfn_t conf;
81	if ((minconf < pfn) \|\| (minconf >= pfn + count))	81	if ((minconf < pfn) \|\| (minconf >= pfn + count))
82	conf = pfn;	82	conf = pfn;
83	else	83	else
84	conf = minconf;	84	conf = minconf;
85		85
86	zone_create(pfn, count, conf, ZONE_AVAILABLE);	86	zone_create(pfn, count, conf, ZONE_AVAILABLE);
87		87
88	// XXX this has to be removed	88	// XXX this has to be removed
89	if (last_frame < ALIGN_UP(base + size, FRAME_SIZE))	89	if (last_frame < ALIGN_UP(base + size, FRAME_SIZE))
90	last_frame = ALIGN_UP(base + size, FRAME_SIZE);	90	last_frame = ALIGN_UP(base + size, FRAME_SIZE);
91	}	91	}
92		92
93	if (e820table[i].type == MEMMAP_MEMORY_RESERVED) {	93	if (e820table[i].type == MEMMAP_MEMORY_RESERVED) {
94	/* To be safe, make reserved zone possibly larger */	94	/* To be safe, make reserved zone possibly larger */
95	pfn = ADDR2PFN(ALIGN_DOWN(base, FRAME_SIZE));	95	pfn = ADDR2PFN(ALIGN_DOWN(base, FRAME_SIZE));
96	count = SIZE2FRAMES(ALIGN_UP(size, FRAME_SIZE));	96	count = SIZE2FRAMES(ALIGN_UP(size, FRAME_SIZE));
97		97
98	zone_create(pfn, count, 0, ZONE_RESERVED);	98	zone_create(pfn, count, 0, ZONE_RESERVED);
99	}	99	}
100		100
101	if (e820table[i].type == MEMMAP_MEMORY_ACPI) {	101	if (e820table[i].type == MEMMAP_MEMORY_ACPI) {
102	/* To be safe, make firmware zone possibly larger */	102	/* To be safe, make firmware zone possibly larger */
103	pfn = ADDR2PFN(ALIGN_DOWN(base, (uintptr_t) FRAME_SIZE));	103	pfn = ADDR2PFN(ALIGN_DOWN(base, (uintptr_t) FRAME_SIZE));
104	count = SIZE2FRAMES(ALIGN_UP(size, (uintptr_t) FRAME_SIZE));	104	count = SIZE2FRAMES(ALIGN_UP(size, (uintptr_t) FRAME_SIZE));
105		105
106	zone_create(pfn, count, 0, ZONE_FIRMWARE);	106	zone_create(pfn, count, 0, ZONE_FIRMWARE);
107	}	107	}
108	}	108	}
109	}	109	}
110		110
111	static char *e820names[] = {	111	static char *e820names[] = {
112	"invalid",	112	"invalid",
113	"available",	113	"available",
114	"reserved",	114	"reserved",
115	"acpi",	115	"acpi",
116	"nvs",	116	"nvs",
117	"unusable"	117	"unusable"
118	};	118	};
119		119
120		120
121	void physmem_print(void)	121	void physmem_print(void)
122	{	122	{
123	unsigned int i;	123	unsigned int i;
124	char *name;	124	char *name;
125		125
126	printf("Base Size Name\n");	126	printf("Base Size Name\n");
127	printf("------------------ ------------------ ---------\n");	127	printf("------------------ ------------------ ---------\n");
128		128
129	for (i = 0; i < e820counter; i++) {	129	for (i = 0; i < e820counter; i++) {
130	if (e820table[i].type <= MEMMAP_MEMORY_UNUSABLE)	130	if (e820table[i].type <= MEMMAP_MEMORY_UNUSABLE)
131	name = e820names[e820table[i].type];	131	name = e820names[e820table[i].type];
132	else	132	else
133	name = "invalid";	133	name = "invalid";
134		134
135	printf("%#18llx %#18llx %s\n", e820table[i].base_address,	135	printf("%#18llx %#18llx %s\n", e820table[i].base_address,
136	e820table[i].size, name);	136	e820table[i].size, name);
137	}	137	}
138	}	138	}
139		139
140		140
141	void frame_arch_init(void)	141	void frame_arch_init(void)
142	{	142	{
143	pfn_t minconf;	143	pfn_t minconf;
144		144
145	if (config.cpu_active == 1) {	145	if (config.cpu_active == 1) {
146	minconf = 1;	146	minconf = 1;
147		147
148	#ifdef CONFIG_SMP	148	#ifdef CONFIG_SMP
149	minconf = max(minconf,	149	minconf = max(minconf,
150	ADDR2PFN(AP_BOOT_OFFSET + hardcoded_unmapped_ktext_size +	150	ADDR2PFN(AP_BOOT_OFFSET + hardcoded_unmapped_ktext_size +
151	hardcoded_unmapped_kdata_size));	151	hardcoded_unmapped_kdata_size));
152	#endif	152	#endif
153	init_e820_memory(minconf);	153	init_e820_memory(minconf);
154		154
155	/* Reserve frame 0 (BIOS data) */	155	/* Reserve frame 0 (BIOS data) */
156	frame_mark_unavailable(0, 1);	156	frame_mark_unavailable(0, 1);
157		157
158	#ifdef CONFIG_SMP	158	#ifdef CONFIG_SMP
159	/* Reserve AP real mode bootstrap memory */	159	/* Reserve AP real mode bootstrap memory */
160	frame_mark_unavailable(AP_BOOT_OFFSET >> FRAME_WIDTH,	160	frame_mark_unavailable(AP_BOOT_OFFSET >> FRAME_WIDTH,
161	(hardcoded_unmapped_ktext_size +	161	(hardcoded_unmapped_ktext_size +
162	hardcoded_unmapped_kdata_size) >> FRAME_WIDTH);	162	hardcoded_unmapped_kdata_size) >> FRAME_WIDTH);
163	#endif	163	#endif
164	}	164	}
165	}	165	}
166		166
167	/** @}	167	/** @}
168	*/	168	*/
169		169

Subversion Repositories HelenOS

(root)/branches/dynload/kernel/arch/ia32/src/mm/frame.c – Rev 4344 → 4691