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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 sparc64 |
29 | /** @addtogroup sparc64 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #ifndef KERN_sparc64_CONTEXT_H_ |
35 | #ifndef KERN_sparc64_CONTEXT_H_ |
36 | #define KERN_sparc64_CONTEXT_H_ |
36 | #define KERN_sparc64_CONTEXT_H_ |
37 | 37 | ||
38 | #include <arch/stack.h> |
38 | #include <arch/stack.h> |
39 | #include <arch/types.h> |
39 | #include <arch/types.h> |
40 | #include <align.h> |
40 | #include <align.h> |
41 | 41 | ||
42 | #define SP_DELTA STACK_WINDOW_SAVE_AREA_SIZE |
42 | #define SP_DELTA STACK_WINDOW_SAVE_AREA_SIZE |
43 | 43 | ||
44 | #ifdef context_set |
44 | #ifdef context_set |
45 | #undef context_set |
45 | #undef context_set |
46 | #endif |
46 | #endif |
47 | 47 | ||
48 | #define context_set(c, _pc, stack, size) \ |
48 | #define context_set(c, _pc, stack, size) \ |
49 | (c)->pc = ((uintptr_t) _pc) - 8; \ |
49 | (c)->pc = ((uintptr_t) _pc) - 8; \ |
50 | (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size), \ |
50 | (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size), \ |
51 | STACK_ALIGNMENT) - (STACK_BIAS + SP_DELTA); \ |
51 | STACK_ALIGNMENT) - (STACK_BIAS + SP_DELTA); \ |
52 | (c)->fp = -STACK_BIAS |
52 | (c)->fp = -STACK_BIAS |
53 | 53 | ||
54 | 54 | ||
55 | /* |
55 | /* |
56 | * Save only registers that must be preserved across |
56 | * Save only registers that must be preserved across |
57 | * function calls. |
57 | * function calls. |
58 | */ |
58 | */ |
59 | typedef struct { |
59 | typedef struct { |
60 | uintptr_t sp; /* %o6 */ |
60 | uintptr_t sp; /* %o6 */ |
61 | uintptr_t pc; /* %o7 */ |
61 | uintptr_t pc; /* %o7 */ |
62 | uint64_t i0; |
62 | uint64_t i0; |
63 | uint64_t i1; |
63 | uint64_t i1; |
64 | uint64_t i2; |
64 | uint64_t i2; |
65 | uint64_t i3; |
65 | uint64_t i3; |
66 | uint64_t i4; |
66 | uint64_t i4; |
67 | uint64_t i5; |
67 | uint64_t i5; |
68 | uintptr_t fp; /* %i6 */ |
68 | uintptr_t fp; /* %i6 */ |
69 | uintptr_t i7; |
69 | uintptr_t i7; |
70 | uint64_t l0; |
70 | uint64_t l0; |
71 | uint64_t l1; |
71 | uint64_t l1; |
72 | uint64_t l2; |
72 | uint64_t l2; |
73 | uint64_t l3; |
73 | uint64_t l3; |
74 | uint64_t l4; |
74 | uint64_t l4; |
75 | uint64_t l5; |
75 | uint64_t l5; |
76 | uint64_t l6; |
76 | uint64_t l6; |
77 | uint64_t l7; |
77 | uint64_t l7; |
78 | ipl_t ipl; |
78 | ipl_t ipl; |
79 | } context_t; |
79 | } context_t; |
80 | 80 | ||
81 | #endif |
81 | #endif |
82 | 82 | ||
83 | /** @} |
83 | /** @} |
84 | */ |
84 | */ |
85 | 85 |