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mm.c clean-up

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Removed some unused functions and ones with duplicate bodies.

	modified:   src/arch/arm/v5/mm.c
This commit is contained in:
Bahadir Balban
2008-02-05 15:43:34 +00:00
parent a82cdd3456
commit 62df138271
1 changed files with 1 additions and 93 deletions
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94
src/arch/arm/v5/mm.c
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@@ -173,12 +173,7 @@ pte_t virt_to_pte_from_pgd(unsigned long virtual, pgd_table_t *pgd)
/* Convert a virtual address to a pte if it exists in the page tables. */
pte_t virt_to_pte(unsigned long virtual)
{
pmd_table_t *pmd = pmd_exists(current->pgd, virtual);
if (pmd)
return (pte_t)pmd->entry[PMD_INDEX(virtual)];
else
return (pte_t)0;
return virt_to_pte_from_pgd(virtual, current->pgd);
}
void attach_pmd(pgd_table_t *pgd, pmd_table_t *pmd, unsigned int vaddr)
@@ -191,93 +186,6 @@ void attach_pmd(pgd_table_t *pgd, pmd_table_t *pmd, unsigned int vaddr)
pgd->entry[pgd_i] |= PGD_TYPE_COARSE;
}
#if 0
/* Maps @paddr to @vaddr, covering @size bytes,
* also allocates new pmd if necessary. */
void add_boot_mapping(unsigned int paddr, unsigned int vaddr,
unsigned int size, unsigned int flags)
{
pmd_table_t *pmd;
unsigned int numpages = (size >> PAGE_BITS);
if (size < PAGE_SIZE) {
printascii("Error: Mapping size must be in bytes not pages.\n");
while(1);
}
if (size & PAGE_MASK)
numpages++;
/* Convert generic map flags to pagetable-specific */
BUG_ON(!(flags = space_flags_to_ptflags(flags)));
/* Map all consecutive pages that cover given size */
for (int i = 0; i < numpages; i++) {
/* Check if another vaddr in same pmd already
* has a pmd attached. */
pmd = pmd_exists(current->pgd, vaddr);
if (!pmd) {
/* If this is the first vaddr in
* this pmd, allocate new pmd */
pmd = alloc_boot_pmd();
/* Attach pmd to its entry in pgd */
attach_pmd(current->pgd, pmd, vaddr);
}
/* Attach paddr to this pmd */
__add_mapping(page_align(paddr),
page_align(vaddr), flags, pmd);
/* Go to the next page to be mapped */
paddr += PAGE_SIZE;
vaddr += PAGE_SIZE;
}
}
#endif
#if 0
/* Maps @paddr to @vaddr, covering @size bytes,
* also allocates new pmd if necessary. */
void add_mapping(unsigned int paddr, unsigned int vaddr,
unsigned int size, unsigned int flags)
{
pmd_table_t *pmd;
unsigned int numpages = (size >> PAGE_BITS);
if (size < PAGE_SIZE) {
printascii("Error: Mapping size must be in bytes not pages.\n");
while(1);
}
if (size & PAGE_MASK)
numpages++;
/* Convert generic map flags to pagetable-specific */
BUG_ON(!(flags = space_flags_to_ptflags(flags)));
/* Map all consecutive pages that cover given size */
for (int i = 0; i < numpages; i++) {
/* Check if another vaddr in same pmd already
* has a pmd attached. */
pmd = pmd_exists(current->pgd, vaddr);
if (!pmd) {
/* If this is the first vaddr in
* this pmd, allocate new pmd */
pmd = alloc_pmd();
/* Attach pmd to its entry in pgd */
attach_pmd(current->pgd, pmd, vaddr);
}
/* Attach paddr to this pmd */
__add_mapping(page_align(paddr),
page_align(vaddr), flags, pmd);
/* Go to the next page to be mapped */
paddr += PAGE_SIZE;
vaddr += PAGE_SIZE;
}
}
#endif
/*
* Maps @paddr to @vaddr, covering @size bytes also allocates new pmd if
* necessary. This flavor explicitly supplies the pgd to modify. This is useful