tile: remove set/clear_fixmap APIs

Nothing in the codebase was using them, and as written they took
"unsigned long" as the physical address rather than "phys_addr_t",
which is wrong on tilepro anyway.  Rather than fixing stale APIs,
just remove them; if there's ever demand for them on this platform,
we can put them back.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

2 files changed, 1 insertions, 53 deletions

diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c
index e182958c707d..3bfa1275e333 100644
--- a/arch/tile/mm/init.c
+++ b/arch/tile/mm/init.c
@@ -777,10 +777,7 @@ void __init paging_init(void)
 
         kernel_physical_mapping_init(pgd_base);
 
-        /*
-         * Fixed mappings, only the page table structure has to be
-         * created - mappings will be set by set_fixmap():
-         */
+        /* Fixed mappings, only the page table structure has to be created. */
         page_table_range_init(fix_to_virt(__end_of_fixed_addresses - 1),
                               FIXADDR_TOP, pgd_base);
 
diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c
index 2bd572be9dba..e41487e22163 100644
--- a/arch/tile/mm/pgtable.c
+++ b/arch/tile/mm/pgtable.c
@@ -83,55 +83,6 @@ void show_mem(unsigned int filter)
         }
 }
 
-/*
- * Associate a virtual page frame with a given physical page frame
- * and protection flags for that frame.
- */
-static void set_pte_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags)
-{
-        pgd_t *pgd;
-        pud_t *pud;
-        pmd_t *pmd;
-        pte_t *pte;
-
-        pgd = swapper_pg_dir + pgd_index(vaddr);
-        if (pgd_none(*pgd)) {
-                BUG();
-                return;
-        }
-        pud = pud_offset(pgd, vaddr);
-        if (pud_none(*pud)) {
-                BUG();
-                return;
-        }
-        pmd = pmd_offset(pud, vaddr);
-        if (pmd_none(*pmd)) {
-                BUG();
-                return;
-        }
-        pte = pte_offset_kernel(pmd, vaddr);
-        /* <pfn,flags> stored as-is, to permit clearing entries */
-        set_pte(pte, pfn_pte(pfn, flags));
-
-        /*
-         * It's enough to flush this one mapping.
-         * This appears conservative since it is only called
-         * from __set_fixmap.
-         */
-        local_flush_tlb_page(NULL, vaddr, PAGE_SIZE);
-}
-
-void __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t flags)
-{
-        unsigned long address = __fix_to_virt(idx);
-
-        if (idx >= __end_of_fixed_addresses) {
-                BUG();
-                return;
-        }
-        set_pte_pfn(address, phys >> PAGE_SHIFT, flags);
-}
-
 /**
  * shatter_huge_page() - ensure a given address is mapped by a small page.
  *