WebSVN – HelenOS – Diff – /trunk/kernel/arch/sparc64/include/mm/frame.h


/*
 * 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 sparc64mm  
 * @{
 */
/** @file
 */
 
#ifndef KERN_sparc64_FRAME_H_
#define KERN_sparc64_FRAME_H_
 
/*
 * Page size supported by the MMU.
 * For 8K there is the nasty illegal virtual aliasing problem.
 * Therefore, the kernel uses 8K only internally on the TLB and TSB levels.
 */
#define MMU_FRAME_WIDTH     13  /* 8K */
#define MMU_FRAME_SIZE      (1 << MMU_FRAME_WIDTH)
 
/*
 * Page size exported to the generic memory management subsystems.
 * This page size is not directly supported by the MMU, but we can emulate
 * each 16K page with a pair of adjacent 8K pages.
 */
#define FRAME_WIDTH     14  /* 16K */
#define FRAME_SIZE      (1 << FRAME_WIDTH)
 
#ifdef KERNEL
#ifndef __ASM__
 
#include <arch/types.h>
 
union frame_address {
    uintptr_t address;
    struct {
#if defined (US)
        unsigned : 23;
        uint64_t pfn : 28;      /**< Physical Frame Number. */
#elif defined (US3)
        unsigned : 21;
        uint64_t pfn : 30;      /**< Physical Frame Number. */
#endif
        unsigned offset : 13;       /**< Offset. */
    } __attribute__ ((packed));
};
 
typedef union frame_address frame_address_t;
 
extern uintptr_t last_frame;
 
extern void frame_arch_init(void);
#define physmem_print()
 
#endif
#endif
 
#endif
 
/** @}
 */
 

Rev 3908	Rev 3973
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 sparc64mm	29	/** @addtogroup sparc64mm
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#ifndef KERN_sparc64_FRAME_H_	35	#ifndef KERN_sparc64_FRAME_H_
36	#define KERN_sparc64_FRAME_H_	36	#define KERN_sparc64_FRAME_H_
37		37
38	/*	38	/*
39	* Page size supported by the MMU.	39	* Page size supported by the MMU.
40	* For 8K there is the nasty illegal virtual aliasing problem.	40	* For 8K there is the nasty illegal virtual aliasing problem.
41	* Therefore, the kernel uses 8K only internally on the TLB and TSB levels.	41	* Therefore, the kernel uses 8K only internally on the TLB and TSB levels.
42	*/	42	*/
43	#define MMU_FRAME_WIDTH 13 /* 8K */	43	#define MMU_FRAME_WIDTH 13 /* 8K */
44	#define MMU_FRAME_SIZE (1 << MMU_FRAME_WIDTH)	44	#define MMU_FRAME_SIZE (1 << MMU_FRAME_WIDTH)
45		45
46	/*	46	/*
47	* Page size exported to the generic memory management subsystems.	47	* Page size exported to the generic memory management subsystems.
48	* This page size is not directly supported by the MMU, but we can emulate	48	* This page size is not directly supported by the MMU, but we can emulate
49	* each 16K page with a pair of adjacent 8K pages.	49	* each 16K page with a pair of adjacent 8K pages.
50	*/	50	*/
51	#define FRAME_WIDTH 14 /* 16K */	51	#define FRAME_WIDTH 14 /* 16K */
52	#define FRAME_SIZE (1 << FRAME_WIDTH)	52	#define FRAME_SIZE (1 << FRAME_WIDTH)
53		53
54	#ifdef KERNEL	54	#ifdef KERNEL
55	#ifndef __ASM__	55	#ifndef __ASM__
56		56
57	#include <arch/types.h>	57	#include <arch/types.h>
58		58
59	union frame_address {	59	union frame_address {
60	uintptr_t address;	60	uintptr_t address;
61	struct {	61	struct {
62	#if defined (US)	62	#if defined (US)
63	unsigned : 23;	63	unsigned : 23;
64	uint64_t pfn : 28; /*< Physical Frame Number. /	64	uint64_t pfn : 28; /*< Physical Frame Number. /
65	#elif defined (US3)	65	#elif defined (US3)
66	unsigned : 21;	66	unsigned : 21;
67	uint64_t pfn : 30; /*< Physical Frame Number. /	67	uint64_t pfn : 30; /*< Physical Frame Number. /
68	#endif	68	#endif
69	unsigned offset : 13; /*< Offset. /	69	unsigned offset : 13; /*< Offset. /
70	} __attribute__ ((packed));	70	} __attribute__ ((packed));
71	};	71	};
72		72
73	typedef union frame_address frame_address_t;	73	typedef union frame_address frame_address_t;
74		74
75	extern uintptr_t last_frame;	75	extern uintptr_t last_frame;
76	extern uintptr_t end_frame;	-
77	extern void frame_arch_init(void);	76	extern void frame_arch_init(void);
78	#define physmem_print()	77	#define physmem_print()
79		78
80	#endif	79	#endif
81	#endif	80	#endif
82		81
83	#endif	82	#endif
84		83
85	/** @}	84	/** @}
86	*/	85	*/
87		86

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/sparc64/include/mm/frame.h @ 2071 – Rev 3908 → 3973