MIPS: Delete unused function add_temporary_entry.

Only available for R4000 style TLBs anyway and proper ordering of
initialization code made this crude interface unncecessary.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/include/asm/pgtable-32.h b/arch/mips/include/asm/pgtable-32.h
index 8a153d2fa62af5aa1d3666f232e850e985e2b0ef..d169c07c38eeeb46b5fdb0c16457ceb63ec5f90d 100644 (file)
--- a/arch/mips/include/asm/pgtable-32.h
+++ b/arch/mips/include/asm/pgtable-32.h
@@ -24,17 +24,6 @@
 extern void add_wired_entry(unsigned long entrylo0, unsigned long entrylo1,
                               unsigned long entryhi, unsigned long pagemask);
 
-/*
- * - add_temporary_entry() add a temporary TLB entry. We use TLB entries
- *     starting at the top and working down. This is for populating the
- *     TLB before trap_init() puts the TLB miss handler in place. It
- *     should be used only for entries matching the actual page tables,
- *     to prevent inconsistencies.
- */
-extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
-                              unsigned long entryhi, unsigned long pagemask);
-
-
 /* Basically we have the same two-level (which is the logical three level
  * Linux page table layout folded) page tables as the i386.  Some day
  * when we have proper page coloring support we can have a 1% quicker

diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index 88dc49cfa16387fa7125a359e93c05c70c6af9b8..74d67c8857433fcd6bf7091574af6ec34360193b 100644 (file)
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -376,51 +376,6 @@ void add_wired_entry(unsigned long entrylo0, unsigned long entrylo1,
        EXIT_CRITICAL(flags);
 }
 
-/*
- * Used for loading TLB entries before trap_init() has started, when we
- * don't actually want to add a wired entry which remains throughout the
- * lifetime of the system
- */
-
-static int temp_tlb_entry __cpuinitdata;
-
-__init int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
-                              unsigned long entryhi, unsigned long pagemask)
-{
-       int ret = 0;
-       unsigned long flags;
-       unsigned long wired;
-       unsigned long old_pagemask;
-       unsigned long old_ctx;
-
-       ENTER_CRITICAL(flags);
-       /* Save old context and create impossible VPN2 value */
-       old_ctx = read_c0_entryhi();
-       old_pagemask = read_c0_pagemask();
-       wired = read_c0_wired();
-       if (--temp_tlb_entry < wired) {
-               printk(KERN_WARNING
-                      "No TLB space left for add_temporary_entry\n");
-               ret = -ENOSPC;
-               goto out;
-       }
-
-       write_c0_index(temp_tlb_entry);
-       write_c0_pagemask(pagemask);
-       write_c0_entryhi(entryhi);
-       write_c0_entrylo0(entrylo0);
-       write_c0_entrylo1(entrylo1);
-       mtc0_tlbw_hazard();
-       tlb_write_indexed();
-       tlbw_use_hazard();
-
-       write_c0_entryhi(old_ctx);
-       write_c0_pagemask(old_pagemask);
-out:
-       EXIT_CRITICAL(flags);
-       return ret;
-}
-
 static int __cpuinitdata ntlb;
 static int __init set_ntlb(char *str)
 {
@@ -458,8 +413,6 @@ void __cpuinit tlb_init(void)
                write_c0_pagegrain(pg);
        }
 
-       temp_tlb_entry = current_cpu_data.tlbsize - 1;
-
         /* From this point on the ARC firmware is dead.  */
        local_flush_tlb_all();