diff options
author | Ralf Baechle <ralf@linux-mips.org> | 2012-12-20 06:47:51 -0500 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2012-12-27 10:27:35 -0500 |
commit | 9120963578320532dfb3a9a7947e8d05b39900b5 (patch) | |
tree | 3a94527080e7013b976be1820e633985e4fe25bb /arch | |
parent | 4457af67337112733b65a66c3d56ca5518e1adbb (diff) |
Revert "MIPS: Optimise TLB handlers for MIPS32/64 R2 cores."
This reverts commit ff401e52100dcdc85e572d1ad376d3307b3fe28e.
This breaks on MIPS64 R2 cores such as Broadcom's.
Diffstat (limited to 'arch')
-rw-r--r-- | arch/mips/mm/tlbex.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 05613355627b..1c8ac49ec72c 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c | |||
@@ -976,13 +976,6 @@ build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr) | |||
976 | #endif | 976 | #endif |
977 | uasm_i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */ | 977 | uasm_i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */ |
978 | uasm_i_lw(p, ptr, uasm_rel_lo(pgdc), ptr); | 978 | uasm_i_lw(p, ptr, uasm_rel_lo(pgdc), ptr); |
979 | |||
980 | if (cpu_has_mips_r2) { | ||
981 | uasm_i_ext(p, tmp, tmp, PGDIR_SHIFT, (32 - PGDIR_SHIFT)); | ||
982 | uasm_i_ins(p, ptr, tmp, PGD_T_LOG2, (32 - PGDIR_SHIFT)); | ||
983 | return; | ||
984 | } | ||
985 | |||
986 | uasm_i_srl(p, tmp, tmp, PGDIR_SHIFT); /* get pgd only bits */ | 979 | uasm_i_srl(p, tmp, tmp, PGDIR_SHIFT); /* get pgd only bits */ |
987 | uasm_i_sll(p, tmp, tmp, PGD_T_LOG2); | 980 | uasm_i_sll(p, tmp, tmp, PGD_T_LOG2); |
988 | uasm_i_addu(p, ptr, ptr, tmp); /* add in pgd offset */ | 981 | uasm_i_addu(p, ptr, ptr, tmp); /* add in pgd offset */ |
@@ -1018,15 +1011,6 @@ static void __cpuinit build_adjust_context(u32 **p, unsigned int ctx) | |||
1018 | 1011 | ||
1019 | static void __cpuinit build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr) | 1012 | static void __cpuinit build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr) |
1020 | { | 1013 | { |
1021 | if (cpu_has_mips_r2) { | ||
1022 | /* PTE ptr offset is obtained from BadVAddr */ | ||
1023 | UASM_i_MFC0(p, tmp, C0_BADVADDR); | ||
1024 | UASM_i_LW(p, ptr, 0, ptr); | ||
1025 | uasm_i_ext(p, tmp, tmp, PAGE_SHIFT+1, PGDIR_SHIFT-PAGE_SHIFT-1); | ||
1026 | uasm_i_ins(p, ptr, tmp, PTE_T_LOG2+1, PGDIR_SHIFT-PAGE_SHIFT-1); | ||
1027 | return; | ||
1028 | } | ||
1029 | |||
1030 | /* | 1014 | /* |
1031 | * Bug workaround for the Nevada. It seems as if under certain | 1015 | * Bug workaround for the Nevada. It seems as if under certain |
1032 | * circumstances the move from cp0_context might produce a | 1016 | * circumstances the move from cp0_context might produce a |