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/*
* arch/xtensa/mm/fault.c
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2001 - 2005 Tensilica Inc.
*
* Chris Zankel <chris@zankel.net>
*/
#if (DCACHE_SIZE > PAGE_SIZE)
pte_t* pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{
pte_t *pte = NULL, *p;
int color = ADDR_COLOR(address);
int i;
p = (pte_t*) __get_free_pages(GFP_KERNEL|__GFP_REPEAT, COLOR_ORDER);
if (likely(p)) {
split_page(virt_to_page(p), COLOR_ORDER);
for (i = 0; i < COLOR_SIZE; i++) {
if (ADDR_COLOR(p) == color)
pte = p;
else
free_page(p);
p += PTRS_PER_PTE;
}
clear_page(pte);
}
return pte;
}
#ifdef PROFILING
int mask;
int hit;
int flush;
#endif
struct page* pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
struct page *page = NULL, *p;
int color = ADDR_COLOR(address);
p = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
if (likely(p)) {
split_page(p, COLOR_ORDER);
for (i = 0; i < PAGE_ORDER; i++) {
if (PADDR_COLOR(page_address(p)) == color)
page = p;
else
__free_page(p);
p++;
}
clear_highpage(page);
}
return page;
}
#endif
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