powerpc/copro: Fix faulting kernel segments

[karo-tx-linux.git] / arch / powerpc / mm / copro_fault.c

diff --git a/arch/powerpc/mm/copro_fault.c b/arch/powerpc/mm/copro_fault.c
index f031a47d7701e60d349f08b46365e2912844066b..7a71d7f81cf6295121458dec6cccea02911192c9 100644 (file)
--- a/arch/powerpc/mm/copro_fault.c
+++ b/arch/powerpc/mm/copro_fault.c
@@ -100,7 +100,7 @@ EXPORT_SYMBOL_GPL(copro_handle_mm_fault);
 
 int copro_calculate_slb(struct mm_struct *mm, u64 ea, struct copro_slb *slb)
 {
-       u64 vsid;
+       u64 vsid, vsidkey;
        int psize, ssize;
 
        switch (REGION_ID(ea)) {
@@ -109,6 +109,7 @@ int copro_calculate_slb(struct mm_struct *mm, u64 ea, struct copro_slb *slb)
                psize = get_slice_psize(mm, ea);
                ssize = user_segment_size(ea);
                vsid = get_vsid(mm->context.id, ea, ssize);
+               vsidkey = SLB_VSID_USER;
                break;
        case VMALLOC_REGION_ID:
                pr_devel("%s: 0x%llx -- VMALLOC_REGION_ID\n", __func__, ea);
@@ -118,19 +119,21 @@ int copro_calculate_slb(struct mm_struct *mm, u64 ea, struct copro_slb *slb)
                        psize = mmu_io_psize;
                ssize = mmu_kernel_ssize;
                vsid = get_kernel_vsid(ea, mmu_kernel_ssize);
+               vsidkey = SLB_VSID_KERNEL;
                break;
        case KERNEL_REGION_ID:
                pr_devel("%s: 0x%llx -- KERNEL_REGION_ID\n", __func__, ea);
                psize = mmu_linear_psize;
                ssize = mmu_kernel_ssize;
                vsid = get_kernel_vsid(ea, mmu_kernel_ssize);
+               vsidkey = SLB_VSID_KERNEL;
                break;
        default:
                pr_debug("%s: invalid region access at %016llx\n", __func__, ea);
                return 1;
        }
 
-       vsid = (vsid << slb_vsid_shift(ssize)) | SLB_VSID_USER;
+       vsid = (vsid << slb_vsid_shift(ssize)) | vsidkey;
 
        vsid |= mmu_psize_defs[psize].sllp |
                ((ssize == MMU_SEGSIZE_1T) ? SLB_VSID_B_1T : 0);