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1 | /* |
1 | /* |
2 | * Copyright (c) 2006 Jakub Jermar |
2 | * Copyright (c) 2006 Jakub Jermar |
3 | * Copyright (c) 2009 Pavel Rimsky |
3 | * Copyright (c) 2009 Pavel Rimsky |
4 | * All rights reserved. |
4 | * All rights reserved. |
5 | * |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
8 | * are met: |
8 | * are met: |
9 | * |
9 | * |
10 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
14 | * documentation and/or other materials provided with the distribution. |
15 | * - The name of the author may not be used to endorse or promote products |
15 | * - The name of the author may not be used to endorse or promote products |
16 | * derived from this software without specific prior written permission. |
16 | * derived from this software without specific prior written permission. |
17 | * |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
28 | */ |
29 | 29 | ||
30 | /** @addtogroup sparc64mm |
30 | /** @addtogroup sparc64mm |
31 | * @{ |
31 | * @{ |
32 | */ |
32 | */ |
33 | /** @file |
33 | /** @file |
34 | */ |
34 | */ |
35 | 35 | ||
36 | #ifndef KERN_sparc64_sun4v_TSB_H_ |
36 | #ifndef KERN_sparc64_sun4v_TSB_H_ |
37 | #define KERN_sparc64_sun4v_TSB_H_ |
37 | #define KERN_sparc64_sun4v_TSB_H_ |
38 | 38 | ||
39 | /* |
39 | /* |
40 | * TSB will claim 64K of memory, which |
40 | * TSB will claim 64K of memory, which |
41 | * is a nice number considered that it is one of |
41 | * is a nice number considered that it is one of |
42 | * the page sizes supported by hardware, which, |
42 | * the page sizes supported by hardware, which, |
43 | * again, is nice because TSBs need to be locked |
43 | * again, is nice because TSBs need to be locked |
44 | * in TLBs - only one TLB entry will do. |
44 | * in TLBs - only one TLB entry will do. |
45 | */ |
45 | */ |
46 | #define TSB_SIZE 3 /* when changing this, change |
46 | #define TSB_SIZE 3 /* when changing this, change |
47 | * as.c as well */ |
47 | * as.c as well */ |
48 | #define TSB_ENTRY_COUNT (512 * (1 << TSB_SIZE)) |
48 | #define TSB_ENTRY_COUNT (512 * (1 << TSB_SIZE)) |
49 | 49 | ||
50 | #ifndef __ASM__ |
50 | #ifndef __ASM__ |
51 | 51 | ||
52 | #include <typedefs.h> |
52 | #include <typedefs.h> |
53 | #include <arch/mm/tte.h> |
53 | #include <arch/mm/tte.h> |
54 | #include <arch/mm/mmu.h> |
54 | #include <arch/mm/mmu.h> |
55 | #include <arch/types.h> |
55 | #include <arch/types.h> |
56 | 56 | ||
57 | /** TSB description, used in hypercalls */ |
57 | /** TSB description, used in hypercalls */ |
58 | typedef struct tsb_descr { |
58 | typedef struct tsb_descr { |
59 | uint16_t page_size; /**< Page size (0 = 8K, 1 = 64K,...). */ |
59 | uint16_t page_size; /**< Page size (0 = 8K, 1 = 64K,...). */ |
60 | uint16_t associativity; /**< TSB associativity (will be 1). */ |
60 | uint16_t associativity; /**< TSB associativity (will be 1). */ |
61 | uint32_t num_ttes; /**< Number of TTEs. */ |
61 | uint32_t num_ttes; /**< Number of TTEs. */ |
62 | uint32_t context; /**< Context number. */ |
62 | uint32_t context; /**< Context number. */ |
63 | uint32_t pgsize_mask; /**< Equals "1 << page_size". */ |
63 | uint32_t pgsize_mask; /**< Equals "1 << page_size". */ |
64 | uint64_t tsb_base; /**< Real address of TSB base. */ |
64 | uint64_t tsb_base; /**< Real address of TSB base. */ |
65 | uint64_t reserved; |
65 | uint64_t reserved; |
66 | } __attribute__ ((packed)) tsb_descr_t; |
66 | } __attribute__ ((packed)) tsb_descr_t; |
67 | 67 | ||
68 | 68 | ||
69 | /* Forward declarations. */ |
69 | /* Forward declarations. */ |
70 | struct as; |
70 | struct as; |
71 | struct pte; |
71 | struct pte; |
72 | 72 | ||
73 | extern void tsb_invalidate(struct as *as, uintptr_t page, count_t pages); |
73 | extern void tsb_invalidate(struct as *as, uintptr_t page, count_t pages); |
74 | extern void itsb_pte_copy(struct pte *t, index_t index); |
74 | extern void itsb_pte_copy(struct pte *t); |
75 | extern void dtsb_pte_copy(struct pte *t, index_t index, bool ro); |
75 | extern void dtsb_pte_copy(struct pte *t, bool ro); |
76 | 76 | ||
77 | #endif /* !def __ASM__ */ |
77 | #endif /* !def __ASM__ */ |
78 | 78 | ||
79 | #endif |
79 | #endif |
80 | 80 | ||
81 | /** @} |
81 | /** @} |
82 | */ |
82 | */ |
83 | 83 |