Rev 2071 | Rev 3022 | Go to most recent revision | Only display areas with differences | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 2071 | Rev 2272 | ||
---|---|---|---|
1 | /* |
1 | /* |
2 | * Copyright (c) 2006 Jakub Jermar |
2 | * Copyright (c) 2006 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 sparc64proc |
29 | /** @addtogroup sparc64proc |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <proc/thread.h> |
35 | #include <proc/thread.h> |
36 | #include <arch/proc/thread.h> |
36 | #include <arch/proc/thread.h> |
37 | #include <mm/frame.h> |
37 | #include <mm/frame.h> |
38 | #include <mm/page.h> |
38 | #include <mm/page.h> |
39 | #include <arch/mm/page.h> |
39 | #include <arch/mm/page.h> |
40 | #include <align.h> |
40 | #include <align.h> |
41 | 41 | ||
42 | void thr_constructor_arch(thread_t *t) |
42 | void thr_constructor_arch(thread_t *t) |
43 | { |
43 | { |
44 | /* |
44 | /* |
45 | * Allocate memory for uspace_window_buffer. |
45 | * Allocate memory for uspace_window_buffer. |
46 | */ |
46 | */ |
47 | t->arch.uspace_window_buffer = NULL; |
47 | t->arch.uspace_window_buffer = NULL; |
48 | } |
48 | } |
49 | 49 | ||
50 | void thr_destructor_arch(thread_t *t) |
50 | void thr_destructor_arch(thread_t *t) |
51 | { |
51 | { |
52 | if (t->arch.uspace_window_buffer) { |
52 | if (t->arch.uspace_window_buffer) { |
53 | /* |
53 | /* |
54 | * Mind the possible alignment of the userspace window buffer |
54 | * Mind the possible alignment of the userspace window buffer |
55 | * belonging to a killed thread. |
55 | * belonging to a killed thread. |
56 | */ |
56 | */ |
57 | frame_free(KA2PA(ALIGN_DOWN((uintptr_t) |
57 | frame_free(KA2PA(ALIGN_DOWN((uintptr_t) |
58 | t->arch.uspace_window_buffer, PAGE_SIZE))); |
58 | t->arch.uspace_window_buffer, PAGE_SIZE))); |
59 | } |
59 | } |
60 | } |
60 | } |
61 | 61 | ||
62 | void thread_create_arch(thread_t *t) |
62 | void thread_create_arch(thread_t *t) |
63 | { |
63 | { |
64 | if ((t->flags & THREAD_FLAG_USPACE) && (!t->arch.uspace_window_buffer)) |
64 | if ((t->flags & THREAD_FLAG_USPACE) && (!t->arch.uspace_window_buffer)) |
65 | { |
65 | { |
66 | /* |
66 | /* |
67 | * The thread needs userspace window buffer and the object |
67 | * The thread needs userspace window buffer and the object |
68 | * returned from the slab allocator doesn't have any. |
68 | * returned from the slab allocator doesn't have any. |
69 | */ |
69 | */ |
70 | t->arch.uspace_window_buffer = frame_alloc(ONE_FRAME, FRAME_KA); |
70 | t->arch.uspace_window_buffer = frame_alloc(ONE_FRAME, FRAME_KA); |
71 | } else { |
71 | } else { |
72 | uintptr_t uw_buf = (uintptr_t) t->arch.uspace_window_buffer; |
72 | uintptr_t uw_buf = (uintptr_t) t->arch.uspace_window_buffer; |
73 | 73 | ||
74 | /* |
74 | /* |
75 | * Mind the possible alignment of the userspace window buffer |
75 | * Mind the possible alignment of the userspace window buffer |
76 | * belonging to a killed thread. |
76 | * belonging to a killed thread. |
77 | */ |
77 | */ |
78 | t->arch.uspace_window_buffer = (uint8_t *) ALIGN_DOWN(uw_buf, |
78 | t->arch.uspace_window_buffer = (uint8_t *) ALIGN_DOWN(uw_buf, |
79 | PAGE_SIZE); |
79 | PAGE_SIZE); |
80 | } |
80 | } |
81 | } |
81 | } |
82 | 82 | ||
83 | /** @} |
83 | /** @} |
84 | */ |
84 | */ |
85 | 85 |