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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-sh64/] [tlb.h] - Blame information for rev 1774

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/*
 * include/asm-sh64/tlb.h
 *
 * Copyright (C) 2003  Paul Mundt
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 */
#ifndef __ASM_SH64_TLB_H
#define __ASM_SH64_TLB_H
 
/*
 * Note! These are mostly unused, we just need the xTLB_LAST_VAR_UNRESTRICTED
 * for head.S! Once this limitation is gone, we can clean the rest of this up.
 */
 
/* ITLB defines */
#define ITLB_FIXED      0x00000000      /* First fixed ITLB, see head.S */
#define ITLB_LAST_VAR_UNRESTRICTED      0x000003F0      /* Last ITLB */
 
/* DTLB defines */
#define DTLB_FIXED      0x00800000      /* First fixed DTLB, see head.S */
#define DTLB_LAST_VAR_UNRESTRICTED      0x008003F0      /* Last DTLB */
 
#ifndef __ASSEMBLY__
 
#include <asm-generic/tlb.h>
 
/*
 * TLB information structure
 *
 * Defined for both I and D tlb, per-processor.
 */
struct tlb_info {
        unsigned long long next;
        unsigned long long first;
        unsigned long long last;
 
        unsigned int entries;
        unsigned int step;
 
        unsigned long flags;
};
 
/**
 * for_each_dtlb_entry
 *
 * @tlb:        TLB entry
 *
 * Iterate over free (non-wired) DTLB entries
 */
#define for_each_dtlb_entry(tlb)                \
        for (tlb  = cpu_data->dtlb.first;       \
             tlb <= cpu_data->dtlb.last;        \
             tlb += cpu_data->dtlb.step)
 
/**
 * for_each_itlb_entry
 *
 * @tlb:        TLB entry
 *
 * Iterate over free (non-wired) ITLB entries
 */
#define for_each_itlb_entry(tlb)                \
        for (tlb  = cpu_data->itlb.first;       \
             tlb <= cpu_data->itlb.last;        \
             tlb += cpu_data->itlb.step)
 
/**
 * __flush_tlb_slot
 *
 * @slot:       Address of TLB slot.
 *
 * Flushes TLB slot @slot.
 */
static inline void __flush_tlb_slot(unsigned long long slot)
{
        __asm__ __volatile__ ("putcfg %0, 0, r63\n" : : "r" (slot));
}
 
/* arch/sh64/mm/tlb.c */
extern int sh64_tlb_init(void);
extern unsigned long long sh64_next_free_dtlb_entry(void);
extern unsigned long long sh64_get_wired_dtlb_entry(void);
extern int sh64_put_wired_dtlb_entry(unsigned long long entry);
 
extern void sh64_setup_tlb_slot(unsigned long long config_addr, unsigned long eaddr, unsigned long asid, unsigned long paddr);
extern void sh64_teardown_tlb_slot(unsigned long long config_addr);
 
#endif /* __ASSEMBLY__ */
 
#endif /* __ASM_SH64_TLB_H */
 

Line No.	Rev	Author	Line
1	1276	phoenix	`/*`
2			`* include/asm-sh64/tlb.h`
3			`*`
4			`* Copyright (C) 2003 Paul Mundt`
5			`*`
6			`* This file is subject to the terms and conditions of the GNU General Public`
7			`* License. See the file "COPYING" in the main directory of this archive`
8			`* for more details.`
9			`*`
10			`*/`
11			`#ifndef __ASM_SH64_TLB_H`
12			`#define __ASM_SH64_TLB_H`
13
14			`/*`
15			`* Note! These are mostly unused, we just need the xTLB_LAST_VAR_UNRESTRICTED`
16			`* for head.S! Once this limitation is gone, we can clean the rest of this up.`
17			`*/`
18
19			`/* ITLB defines */`
20			`#define ITLB_FIXED 0x00000000 /* First fixed ITLB, see head.S */`
21			`#define ITLB_LAST_VAR_UNRESTRICTED 0x000003F0 /* Last ITLB */`
22
23			`/* DTLB defines */`
24			`#define DTLB_FIXED 0x00800000 /* First fixed DTLB, see head.S */`
25			`#define DTLB_LAST_VAR_UNRESTRICTED 0x008003F0 /* Last DTLB */`
26
27			`#ifndef __ASSEMBLY__`
28
29			`#include <asm-generic/tlb.h>`
30
31			`/*`
32			`* TLB information structure`
33			`*`
34			`* Defined for both I and D tlb, per-processor.`
35			`*/`
36			`struct tlb_info {`
37			`unsigned long long next;`
38			`unsigned long long first;`
39			`unsigned long long last;`
40
41			`unsigned int entries;`
42			`unsigned int step;`
43
44			`unsigned long flags;`
45			`};`
46
47			`/**`
48			`* for_each_dtlb_entry`
49			`*`
50			`* @tlb: TLB entry`
51			`*`
52			`* Iterate over free (non-wired) DTLB entries`
53			`*/`
54			`#define for_each_dtlb_entry(tlb) \`
55			`for (tlb = cpu_data->dtlb.first; \`
56			`tlb <= cpu_data->dtlb.last; \`
57			`tlb += cpu_data->dtlb.step)`
58
59			`/**`
60			`* for_each_itlb_entry`
61			`*`
62			`* @tlb: TLB entry`
63			`*`
64			`* Iterate over free (non-wired) ITLB entries`
65			`*/`
66			`#define for_each_itlb_entry(tlb) \`
67			`for (tlb = cpu_data->itlb.first; \`
68			`tlb <= cpu_data->itlb.last; \`
69			`tlb += cpu_data->itlb.step)`
70
71			`/**`
72			`* __flush_tlb_slot`
73			`*`
74			`* @slot: Address of TLB slot.`
75			`*`
76			`* Flushes TLB slot @slot.`
77			`*/`
78			`static inline void __flush_tlb_slot(unsigned long long slot)`
79			`{`
80			`__asm__ __volatile__ ("putcfg %0, 0, r63\n" : : "r" (slot));`
81			`}`
82
83			`/* arch/sh64/mm/tlb.c */`
84			`extern int sh64_tlb_init(void);`
85			`extern unsigned long long sh64_next_free_dtlb_entry(void);`
86			`extern unsigned long long sh64_get_wired_dtlb_entry(void);`
87			`extern int sh64_put_wired_dtlb_entry(unsigned long long entry);`
88
89			`extern void sh64_setup_tlb_slot(unsigned long long config_addr, unsigned long eaddr, unsigned long asid, unsigned long paddr);`
90			`extern void sh64_teardown_tlb_slot(unsigned long long config_addr);`
91
92			`#endif /* __ASSEMBLY__ */`
93
94			`#endif /* __ASM_SH64_TLB_H */`
95

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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-sh64/] [tlb.h] - Blame information for rev 1774