sambuc/codezero
1
0
Fork 0
mirror of https://github.com/drasko/codezero.git synced 2026-01-25 01:03:16 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

More changes for cleaner initialization and support for containers.

Browse Source
This commit is contained in:
Bahadir Balban
2009-07-25 17:44:29 +03:00
parent ba1cc0c6bc
commit f7b768ee16
17 changed files with 247 additions and 149 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
src/glue/arm/memory.c
View File

@@ -39,48 +39,6 @@ unsigned int space_flags_to_ptflags(unsigned int flags)
BUG(); return 0;
}
#define NUM_PMD_TABLES 7
//#define NUM_PGD_TABLES 8
/* Initial first level page table to provide startup mappings */
SECTION(".kspace.pgd") pgd_table_t kspace;
SECTION(".kspace.pmd") pmd_table_t pmd_tables[NUM_PMD_TABLES];
/* A mini bitmap for boot pmd allocations */
static int pmd_cnt;
pmd_table_t *pmd_array;
pmd_table_t *alloc_boot_pmd(void)
{
pmd_table_t *pt;
if (pmd_cnt == NUM_PMD_TABLES)
return 0;
pt = &pmd_array[pmd_cnt++];
BUG_ON((unsigned long)pt & (sizeof(pmd_table_t) - 1));
return pt;
}
/*
* Initialises pmd allocation cache, this is called before page allocator
* initialises. After this call one can add page mappings via add_mapping().
* This also sets the alloc_pmd() global function to this boot-time version.
*/
void init_pmd_tables(void)
{
pmd_cnt = 0;
pmd_array = pmd_tables;
memset(pmd_array, 0, NUM_PMD_TABLES * sizeof(pmd_table_t));
}
/* Clears out all entries in the initial page table */
void init_clear_ptab(void)
{
memset((void *)virt_to_phys(&kspace), 0, sizeof(pgd_table_t));
}
/* Sets up struct page array and the physical memory descriptor. */
void paging_init(void)
{