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author | Alexis211 <alexis211@gmail.com> | 2010-02-06 20:51:56 +0100 |
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committer | Alexis211 <alexis211@gmail.com> | 2010-02-06 20:51:56 +0100 |
commit | 6a52d123672b7a00af6e22b4c138205be2042a94 (patch) | |
tree | cd9b0a13490159369a66c850850596fd4b418139 /src/stem/mem/seg.c | |
parent | 3558f18daf50281ee1cd68cca96cd967dbac04ba (diff) | |
download | TCE-6a52d123672b7a00af6e22b4c138205be2042a94.tar.gz TCE-6a52d123672b7a00af6e22b4c138205be2042a94.zip |
Reorganisation
Diffstat (limited to 'src/stem/mem/seg.c')
-rw-r--r-- | src/stem/mem/seg.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/src/stem/mem/seg.c b/src/stem/mem/seg.c deleted file mode 100644 index 1452d61..0000000 --- a/src/stem/mem/seg.c +++ /dev/null @@ -1,73 +0,0 @@ -#include "seg.h" -#include "mem.h" - -struct segment_map *seg_map(struct segment* seg, struct page_directory *pagedir) { - struct segment_map *sm = seg->map(seg, pagedir); - if (sm == 0) return 0; - seg->mappings++; - sm->seg = seg; - sm->pagedir = pagedir; - sm->next = pagedir->mappedSegs; - pagedir->mappedSegs = sm; - return sm; -} - -void seg_unmap(struct segment_map *map) { - map->seg->unmap(map); - if (map->pagedir->mappedSegs == map) { - map->pagedir->mappedSegs = map->pagedir->mappedSegs->next; - } else { - struct segment_map *m = map->pagedir->mappedSegs; - while (m->next != 0 && m->next != map) m = m->next; - if (m->next == map) m->next = map->next; - } - map->seg->mappings--; - if (map->seg->mappings == 0) { - map->seg->delete(map->seg); - kfree(map->seg->seg_data); - kfree(map->seg); - } - kfree (map); -} - -// ************************************ SIMPLESEG stuff ************* - -struct segment* simpleseg_make(size_t start, size_t len, int writable) { - struct simpleseg *ss = kmalloc(sizeof(struct simpleseg)); - struct segment *se = kmalloc(sizeof(struct segment)); - se->seg_data = ss; - se->mappings = 0; - se->map = simpleseg_map; - se->unmap = simpleseg_unmap; - se->delete = simpleseg_delete; - se->handle_fault = simpleseg_handleFault; - ss->writable = writable; ss->start = start; ss->len = len; - return se; -} - -struct segment_map* simpleseg_map(struct segment* seg, struct page_directory* pagedir) { - struct segment_map *sm = kmalloc(sizeof(struct segment_map)); - sm->start = ((struct simpleseg*)(seg->seg_data))->start; - sm->len = ((struct simpleseg*)(seg->seg_data))->len; - return sm; -} - -void simpleseg_unmap(struct segment_map* sm) { - size_t i; - for (i = sm->start; i < sm->start + sm->len; i += 0x1000) { - page_unmapFree(pagedir_getPage(sm->pagedir, i, 0)); - } -} - -int simpleseg_handleFault(struct segment_map* sm, size_t addr, int write) { - struct simpleseg *ss = sm->seg->seg_data; - if (write && !ss->writable) return 1; - addr &= 0xFFFFF000; - struct page *p = pagedir_getPage(sm->pagedir, addr, 1); - if (p->frame != 0) return 1; - page_map(p, frame_alloc(), 1, ss->writable); - return 0; -} - -void simpleseg_delete(struct segment* seg) { -} |