[SPARC64]: No need to D-cache color page tables any longer.
Unlike the virtual page tables, the new TSB scheme does not
require this ugly hack.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index da068f6..936ae1a 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -145,6 +145,10 @@
#define PGT_CACHE_LOW 25
#define PGT_CACHE_HIGH 50
+#ifndef CONFIG_SMP
+struct pgtable_cache_struct pgt_quicklists;
+#endif
+
void check_pgt_cache(void)
{
preempt_disable();
@@ -152,10 +156,8 @@
do {
if (pgd_quicklist)
free_pgd_slow(get_pgd_fast());
- if (pte_quicklist[0])
- free_pte_slow(pte_alloc_one_fast(NULL, 0));
- if (pte_quicklist[1])
- free_pte_slow(pte_alloc_one_fast(NULL, 1 << (PAGE_SHIFT + 10)));
+ if (pte_quicklist)
+ free_pte_slow(pte_alloc_one_fast());
} while (pgtable_cache_size > PGT_CACHE_LOW);
}
preempt_enable();
@@ -962,67 +964,6 @@
spin_unlock(&ctx_alloc_lock);
}
-#ifndef CONFIG_SMP
-struct pgtable_cache_struct pgt_quicklists;
-#endif
-
-/* XXX We don't need to color these things in the D-cache any longer. */
-#ifdef DCACHE_ALIASING_POSSIBLE
-#define DC_ALIAS_SHIFT 1
-#else
-#define DC_ALIAS_SHIFT 0
-#endif
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
-{
- struct page *page;
- unsigned long color;
-
- {
- pte_t *ptep = pte_alloc_one_fast(mm, address);
-
- if (ptep)
- return ptep;
- }
-
- color = VPTE_COLOR(address);
- page = alloc_pages(GFP_KERNEL|__GFP_REPEAT, DC_ALIAS_SHIFT);
- if (page) {
- unsigned long *to_free;
- unsigned long paddr;
- pte_t *pte;
-
-#ifdef DCACHE_ALIASING_POSSIBLE
- set_page_count(page, 1);
- ClearPageCompound(page);
-
- set_page_count((page + 1), 1);
- ClearPageCompound(page + 1);
-#endif
- paddr = (unsigned long) page_address(page);
- memset((char *)paddr, 0, (PAGE_SIZE << DC_ALIAS_SHIFT));
-
- if (!color) {
- pte = (pte_t *) paddr;
- to_free = (unsigned long *) (paddr + PAGE_SIZE);
- } else {
- pte = (pte_t *) (paddr + PAGE_SIZE);
- to_free = (unsigned long *) paddr;
- }
-
-#ifdef DCACHE_ALIASING_POSSIBLE
- /* Now free the other one up, adjust cache size. */
- preempt_disable();
- *to_free = (unsigned long) pte_quicklist[color ^ 0x1];
- pte_quicklist[color ^ 0x1] = to_free;
- pgtable_cache_size++;
- preempt_enable();
-#endif
-
- return pte;
- }
- return NULL;
-}
-
void sparc_ultra_dump_itlb(void)
{
int slot;