WebSVN – HelenOS – Blame – /trunk/kernel/arch/sparc64/include/mm/tlb.h

Rev	Author	Line No.	Line
418	jermar	1	/*
		2	* Copyright (C) 2005 Jakub Jermar
		3	* All rights reserved.
		4	*
		5	* Redistribution and use in source and binary forms, with or without
		6	* modification, are permitted provided that the following conditions
		7	* are met:
		8	*
		9	* - Redistributions of source code must retain the above copyright
		10	* notice, this list of conditions and the following disclaimer.
		11	* - Redistributions in binary form must reproduce the above copyright
		12	* notice, this list of conditions and the following disclaimer in the
		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
		15	* derived from this software without specific prior written permission.
		16	*
		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
		19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		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
		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
		26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		27	*/
		28
		29	#ifndef __sparc64_TLB_H__
		30	#define __sparc64_TLB_H__
		31
530	jermar	32	#include <arch/mm/tte.h>
569	jermar	33	#include <arch/asm.h>
		34	#include <arch/types.h>
		35	#include <typedefs.h>
530	jermar	36
569	jermar	37	#define ITLB_ENTRY_COUNT 64
		38	#define DTLB_ENTRY_COUNT 64
		39
531	jermar	40	/** I-MMU ASIs. */
		41	#define ASI_IMMU 0x50
		42	#define ASI_IMMU_TSB_8KB_PTR_REG 0x51
		43	#define ASI_IMMU_TSB_64KB_PTR_REG 0x52
		44	#define ASI_ITLB_DATA_IN_REG 0x54
		45	#define ASI_ITLB_DATA_ACCESS_REG 0x55
		46	#define ASI_ITLB_TAG_READ_REG 0x56
		47	#define ASI_IMMU_DEMAP 0x57
		48
		49	/** Virtual Addresses within ASI_IMMU. */
		50	#define VA_IMMU_TAG_TARGET 0x0 /*< IMMU tag target register. /
		51	#define VA_IMMU_SFSR 0x18 /*< IMMU sync fault status register. /
		52	#define VA_IMMU_TSB_BASE 0x28 /*< IMMU TSB base register. /
		53	#define VA_IMMU_TAG_ACCESS 0x30 /*< IMMU TLB tag access register. /
		54
		55	/** D-MMU ASIs. */
		56	#define ASI_DMMU 0x58
		57	#define ASI_DMMU_TSB_8KB_PTR_REG 0x59
		58	#define ASI_DMMU_TSB_64KB_PTR_REG 0x5a
		59	#define ASI_DMMU_TSB_DIRECT_PTR_REG 0x5b
		60	#define ASI_DTLB_DATA_IN_REG 0x5c
		61	#define ASI_DTLB_DATA_ACCESS_REG 0x5d
		62	#define ASI_DTLB_TAG_READ_REG 0x5e
		63	#define ASI_DMMU_DEMAP 0x5f
		64
		65	/** Virtual Addresses within ASI_DMMU. */
		66	#define VA_DMMU_TAG_TARGET 0x0 /*< DMMU tag target register. /
		67	#define VA_PRIMARY_CONTEXT_REG 0x8 /*< DMMU primary context register. /
		68	#define VA_SECONDARY_CONTEXT_REG 0x10 /*< DMMU secondary context register. /
		69	#define VA_DMMU_SFSR 0x18 /*< DMMU sync fault status register. /
		70	#define VA_DMMU_SFAR 0x20 /*< DMMU sync fault address register. /
		71	#define VA_DMMU_TSB_BASE 0x28 /*< DMMU TSB base register. /
		72	#define VA_DMMU_TAG_ACCESS 0x30 /*< DMMU TLB tag access register. /
		73	#define VA_DMMU_VA_WATCHPOINT_REG 0x38 /*< DMMU VA data watchpoint register. /
		74	#define VA_DMMU_PA_WATCHPOINT_REG 0x40 /*< DMMU PA data watchpoint register. /
		75
530	jermar	76	/** I-/D-TLB Data In/Access Register type. */
		77	typedef tte_data_t tlb_data_t;
		78
569	jermar	79	/** I-/D-TLB Data Access Address in Alternate Space. */
		80	union tlb_data_access_addr {
		81	__u64 value;
		82	struct {
		83	__u64 : 55;
		84	unsigned tlb_entry : 6;
		85	unsigned : 3;
		86	} __attribute__ ((packed));
		87	};
		88	typedef union tlb_data_access_addr tlb_data_access_addr_t;
		89	typedef union tlb_data_access_addr tlb_tag_read_addr_t;
418	jermar	90
569	jermar	91	/** I-/D-TLB Tag Read Register. */
		92	union tlb_tag_read_reg {
		93	__u64 value;
		94	struct {
		95	__u64 va : 51; /*< Virtual Address. /
		96	unsigned context : 13; /*< Context identifier. /
		97	} __attribute__ ((packed));
		98	};
		99	typedef union tlb_tag_read_reg tlb_tag_read_reg_t;
		100
		101	/** Read IMMU TLB Data Access Register.
		102	*
		103	* @param entry TLB Entry index.
		104	*
		105	* @return Current value of specified IMMU TLB Data Access Register.
		106	*/
		107	static inline __u64 itlb_data_access_read(index_t entry)
		108	{
		109	tlb_data_access_addr_t reg;
		110
		111	reg.value = 0;
		112	reg.tlb_entry = entry;
		113	return asi_u64_read(ASI_ITLB_DATA_ACCESS_REG, reg.value);
		114	}
		115
		116	/** Read DMMU TLB Data Access Register.
		117	*
		118	* @param entry TLB Entry index.
		119	*
		120	* @return Current value of specified DMMU TLB Data Access Register.
		121	*/
		122	static inline __u64 dtlb_data_access_read(index_t entry)
		123	{
		124	tlb_data_access_addr_t reg;
		125
		126	reg.value = 0;
		127	reg.tlb_entry = entry;
		128	return asi_u64_read(ASI_DTLB_DATA_ACCESS_REG, reg.value);
		129	}
		130
		131	/** Read IMMU TLB Tag Read Register.
		132	*
		133	* @param entry TLB Entry index.
		134	*
		135	* @return Current value of specified IMMU TLB Tag Read Register.
		136	*/
		137	static inline __u64 itlb_tag_read(index_t entry)
		138	{
		139	tlb_tag_read_addr_t tag;
		140
		141	tag.value = 0;
		142	tag.tlb_entry = entry;
		143	return asi_u64_read(ASI_ITLB_TAG_READ_REG, tag.value);
		144	}
		145
		146	/** Read DMMU TLB Tag Read Register.
		147	*
		148	* @param entry TLB Entry index.
		149	*
		150	* @return Current value of specified DMMU TLB Tag Read Register.
		151	*/
		152	static inline __u64 dtlb_tag_read(index_t entry)
		153	{
		154	tlb_tag_read_addr_t tag;
		155
		156	tag.value = 0;
		157	tag.tlb_entry = entry;
		158	return asi_u64_read(ASI_DTLB_TAG_READ_REG, tag.value);
		159	}
		160
418	jermar	161	#endif

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/sparc64/include/mm/tlb.h @ 3382 – Rev 569