diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/mm/init.c | 8 | ||||
| -rw-r--r-- | arch/mips/mm/tlb-r4k.c | 6 | ||||
| -rw-r--r-- | arch/mips/mm/tlbex.c | 16 |
3 files changed, 19 insertions, 11 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 134c988bc61f..9b58eb5fd0d5 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -112,9 +112,11 @@ static void *__kmap_pgprot(struct page *page, unsigned long addr, pgprot_t prot) write_c0_entrylo0(entrylo); write_c0_entrylo1(entrylo); #ifdef CONFIG_XPA - entrylo = (pte.pte_low & _PFNX_MASK); - writex_c0_entrylo0(entrylo); - writex_c0_entrylo1(entrylo); + if (cpu_has_xpa) { + entrylo = (pte.pte_low & _PFNX_MASK); + writex_c0_entrylo0(entrylo); + writex_c0_entrylo1(entrylo); + } #endif tlbidx = read_c0_wired(); write_c0_wired(tlbidx + 1); diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index 61f1f1ba4a17..5a5c7fec645e 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c @@ -339,10 +339,12 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte) #if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32) #ifdef CONFIG_XPA write_c0_entrylo0(pte_to_entrylo(ptep->pte_high)); - writex_c0_entrylo0(ptep->pte_low & _PFNX_MASK); + if (cpu_has_xpa) + writex_c0_entrylo0(ptep->pte_low & _PFNX_MASK); ptep++; write_c0_entrylo1(pte_to_entrylo(ptep->pte_high)); - writex_c0_entrylo1(ptep->pte_low & _PFNX_MASK); + if (cpu_has_xpa) + writex_c0_entrylo1(ptep->pte_low & _PFNX_MASK); #else write_c0_entrylo0(ptep->pte_high); ptep++; diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 588bde3bdbe7..0efa6211cc40 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -1030,17 +1030,21 @@ static void build_update_entries(u32 **p, unsigned int tmp, unsigned int ptep) UASM_i_ROTR(p, tmp, tmp, ilog2(_PAGE_GLOBAL)); UASM_i_MTC0(p, tmp, C0_ENTRYLO0); - uasm_i_lw(p, tmp, 0, ptep); - uasm_i_ext(p, tmp, tmp, 0, 24); - uasm_i_mthc0(p, tmp, C0_ENTRYLO0); + if (cpu_has_xpa && !mips_xpa_disabled) { + uasm_i_lw(p, tmp, 0, ptep); + uasm_i_ext(p, tmp, tmp, 0, 24); + uasm_i_mthc0(p, tmp, C0_ENTRYLO0); + } uasm_i_lw(p, tmp, pte_off_odd, ptep); /* odd pte */ UASM_i_ROTR(p, tmp, tmp, ilog2(_PAGE_GLOBAL)); UASM_i_MTC0(p, tmp, C0_ENTRYLO1); - uasm_i_lw(p, tmp, sizeof(pte_t), ptep); - uasm_i_ext(p, tmp, tmp, 0, 24); - uasm_i_mthc0(p, tmp, C0_ENTRYLO1); + if (cpu_has_xpa && !mips_xpa_disabled) { + uasm_i_lw(p, tmp, sizeof(pte_t), ptep); + uasm_i_ext(p, tmp, tmp, 0, 24); + uasm_i_mthc0(p, tmp, C0_ENTRYLO1); + } return; } |