[POWERPC] Use 1TB segments

[linux-2.6] / arch / powerpc / kernel / process.c

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 15998b57767c8c034a79b02c1726b624ab5144bf..7949c203cb89f5df7a7b27471d1b904e9af672a0 100644 (file)
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -564,10 +564,15 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 
 #ifdef CONFIG_PPC64
        if (cpu_has_feature(CPU_FTR_SLB)) {
-               unsigned long sp_vsid = get_kernel_vsid(sp);
+               unsigned long sp_vsid;
                unsigned long llp = mmu_psize_defs[mmu_linear_psize].sllp;
 
-               sp_vsid <<= SLB_VSID_SHIFT;
+               if (cpu_has_feature(CPU_FTR_1T_SEGMENT))
+                       sp_vsid = get_kernel_vsid(sp, MMU_SEGSIZE_1T)
+                               << SLB_VSID_SHIFT_1T;
+               else
+                       sp_vsid = get_kernel_vsid(sp, MMU_SEGSIZE_256M)
+                               << SLB_VSID_SHIFT;
                sp_vsid |= SLB_VSID_KERNEL | llp;
                p->thread.ksp_vsid = sp_vsid;
        }