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Carried over pager's virtual address alloc range to its own address space area.

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This commit is contained in:
Bahadir Balban
2009-08-19 15:18:10 +03:00
parent 95b7b65c89
commit 9c03d57d63
1 changed files with 18 additions and 3 deletions
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21
tasks/mm0/src/memory.c
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@@ -20,6 +20,13 @@
struct address_pool pager_vaddr_pool;
/* FIXME:
* ID pool id allocation size (i.e. bitlimit/nwords parameters)
* must be in sync with address pool allocation range. Here, since
* the id pool needs to be determined at compile time, the two
* parameters don't match yet.
*/
/* Bitmap size to represent an address pool of 256 MB. */
#define ADDRESS_POOL_256MB 2048
@@ -33,14 +40,22 @@ static struct pager_virtual_address_id_pool {
.bitlimit = ADDRESS_POOL_256MB * 32,
};
/* End of pager image */
extern unsigned char _end[];
int pager_address_pool_init(void)
{
/* Initialise id pool for pager virtual address allocation */
/*
* Initialise id pool for pager virtual address
* allocation. This spans from end of pager image
* until the end of the virtual address range
* allocated for the pager
*/
address_pool_init_with_idpool(&pager_vaddr_pool,
(struct id_pool *)
&pager_virtual_address_id_pool,
(unsigned long)0xD0000000,
(unsigned long)0xE0000000);
page_align_up((unsigned long)_end + PAGE_SIZE),
(unsigned long)0xF0000000);
return 0;
}