WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/ppc64/src/mm/tlb.c


/*
 * Copyright (C) 2006 Martin Decky
 * 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 ppc64mm   
 * @{
 */
/** @file
 */
 
#include <mm/tlb.h>
 
 
/** Initialize Page Hash Table.
 *
 * Setup the Page Hash Table with no entries.
 *
 */
void tlb_arch_init(void)
{
    tlb_invalidate_all();
}
 
 
void tlb_invalidate_all(void)
{
    asm volatile (
        "tlbia\n"
        "tlbsync\n"
    );
}
 
 
/** Invalidate all entries in TLB that belong to specified address space.
 *
 * @param asid This parameter is ignored as the architecture doesn't support it.
 */
void tlb_invalidate_asid(asid_t asid)
{
    tlb_invalidate_all();
}
 
/** Invalidate TLB entries for specified page range belonging to specified address space.
 *
 * @param asid This parameter is ignored as the architecture doesn't support it.
 * @param page Address of the first page whose entry is to be invalidated.
 * @param cnt Number of entries to invalidate.
 */
void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt)
{
    tlb_invalidate_all();
}
 
 
 
/** Print contents of Page Hash Table. */
void tlb_print(void)
{
}
 
 /** @}
 */
 
 

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/ppc64/src/mm/tlb.c – Rev 1398 → 1702

Rev 1398		Rev 1702
1	/*	1	/*
2	* Copyright (C) 2006 Martin Decky	2	* Copyright (C) 2006 Martin Decky
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 ppc64mm
-		30	* @{
-		31	*/
-		32	/** @file
-		33	*/
-		34
29	#include <mm/tlb.h>	35	#include <mm/tlb.h>
30		36
31		37
32	/** Initialize Page Hash Table.	38	/** Initialize Page Hash Table.
33	*	39	*
34	* Setup the Page Hash Table with no entries.	40	* Setup the Page Hash Table with no entries.
35	*	41	*
36	*/	42	*/
37	void tlb_arch_init(void)	43	void tlb_arch_init(void)
38	{	44	{
39	tlb_invalidate_all();	45	tlb_invalidate_all();
40	}	46	}
41		47
42		48
43	void tlb_invalidate_all(void)	49	void tlb_invalidate_all(void)
44	{	50	{
45	asm volatile (	51	asm volatile (
46	"tlbia\n"	52	"tlbia\n"
47	"tlbsync\n"	53	"tlbsync\n"
48	);	54	);
49	}	55	}
50		56
51		57
52	/** Invalidate all entries in TLB that belong to specified address space.	58	/** Invalidate all entries in TLB that belong to specified address space.
53	*	59	*
54	* @param asid This parameter is ignored as the architecture doesn't support it.	60	* @param asid This parameter is ignored as the architecture doesn't support it.
55	*/	61	*/
56	void tlb_invalidate_asid(asid_t asid)	62	void tlb_invalidate_asid(asid_t asid)
57	{	63	{
58	tlb_invalidate_all();	64	tlb_invalidate_all();
59	}	65	}
60		66
61	/** Invalidate TLB entries for specified page range belonging to specified address space.	67	/** Invalidate TLB entries for specified page range belonging to specified address space.
62	*	68	*
63	* @param asid This parameter is ignored as the architecture doesn't support it.	69	* @param asid This parameter is ignored as the architecture doesn't support it.
64	* @param page Address of the first page whose entry is to be invalidated.	70	* @param page Address of the first page whose entry is to be invalidated.
65	* @param cnt Number of entries to invalidate.	71	* @param cnt Number of entries to invalidate.
66	*/	72	*/
67	void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt)	73	void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt)
68	{	74	{
69	tlb_invalidate_all();	75	tlb_invalidate_all();
70	}	76	}
71		77
72		78
73		79
74	/** Print contents of Page Hash Table. */	80	/** Print contents of Page Hash Table. */
75	void tlb_print(void)	81	void tlb_print(void)
76	{	82	{
77	}	83	}
-		84
-		85	/** @}
-		86	*/
-		87
78		88