Revert "MIPS: Optimise TLB handlers for MIPS32/64 R2 cores."
This reverts commit ff401e52100dcdc85e572d1ad376d3307b3fe28e.
This breaks on MIPS64 R2 cores such as Broadcom's.
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 0561335..1c8ac49 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -976,13 +976,6 @@
#endif
uasm_i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */
uasm_i_lw(p, ptr, uasm_rel_lo(pgdc), ptr);
-
- if (cpu_has_mips_r2) {
- uasm_i_ext(p, tmp, tmp, PGDIR_SHIFT, (32 - PGDIR_SHIFT));
- uasm_i_ins(p, ptr, tmp, PGD_T_LOG2, (32 - PGDIR_SHIFT));
- return;
- }
-
uasm_i_srl(p, tmp, tmp, PGDIR_SHIFT); /* get pgd only bits */
uasm_i_sll(p, tmp, tmp, PGD_T_LOG2);
uasm_i_addu(p, ptr, ptr, tmp); /* add in pgd offset */
@@ -1018,15 +1011,6 @@
static void __cpuinit build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr)
{
- if (cpu_has_mips_r2) {
- /* PTE ptr offset is obtained from BadVAddr */
- UASM_i_MFC0(p, tmp, C0_BADVADDR);
- UASM_i_LW(p, ptr, 0, ptr);
- uasm_i_ext(p, tmp, tmp, PAGE_SHIFT+1, PGDIR_SHIFT-PAGE_SHIFT-1);
- uasm_i_ins(p, ptr, tmp, PTE_T_LOG2+1, PGDIR_SHIFT-PAGE_SHIFT-1);
- return;
- }
-
/*
* Bug workaround for the Nevada. It seems as if under certain
* circumstances the move from cp0_context might produce a