[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>

1 files changed, 6 insertions, 65 deletions

diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index da068f6b2595..936ae1a594ac 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -145,6 +145,10 @@ int bigkernel = 0;
 #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 @@ void check_pgt_cache(void)
                 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 @@ out:
         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;