From: arnd@arndb.de Date: Mon, 19 Jun 2006 18:33:23 +0000 (+0200) Subject: [POWERPC] spufs: set up correct SLB entries for 64k pages X-Git-Tag: v2.6.18-rc1~1081^2~225^2~21 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=724bd80e8102ac137868b23fad2b06af65f8e168;p=linux-2.6 [POWERPC] spufs: set up correct SLB entries for 64k pages spufs currently knows only 4k pages and 16M hugetlb pages. Make it use the regular methods for deciding on the SLB bits. Signed-off-by: Arnd Bergmann Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index d5877aacc3..fd6ea571db 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -71,7 +71,7 @@ static int __spu_trap_data_seg(struct spu *spu, unsigned long ea) { struct spu_priv2 __iomem *priv2 = spu->priv2; struct mm_struct *mm = spu->mm; - u64 esid, vsid; + u64 esid, vsid, llp; pr_debug("%s\n", __FUNCTION__); @@ -91,9 +91,14 @@ static int __spu_trap_data_seg(struct spu *spu, unsigned long ea) } esid = (ea & ESID_MASK) | SLB_ESID_V; - vsid = (get_vsid(mm->context.id, ea) << SLB_VSID_SHIFT) | SLB_VSID_USER; +#ifdef CONFIG_HUGETLB_PAGE if (in_hugepage_area(mm->context, ea)) - vsid |= SLB_VSID_L; + llp = mmu_psize_defs[mmu_huge_psize].sllp; + else +#endif + llp = mmu_psize_defs[mmu_virtual_psize].sllp; + vsid = (get_vsid(mm->context.id, ea) << SLB_VSID_SHIFT) | + SLB_VSID_USER | llp; out_be64(&priv2->slb_index_W, spu->slb_replace); out_be64(&priv2->slb_vsid_RW, vsid); diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c index 60f8b36164..97a0e80c7d 100644 --- a/arch/powerpc/platforms/cell/spufs/switch.c +++ b/arch/powerpc/platforms/cell/spufs/switch.c @@ -718,13 +718,15 @@ static inline void invalidate_slbs(struct spu_state *csa, struct spu *spu) static inline void get_kernel_slb(u64 ea, u64 slb[2]) { - slb[0] = (get_kernel_vsid(ea) << SLB_VSID_SHIFT) | SLB_VSID_KERNEL; + u64 llp; + + if (REGION_ID(ea) == KERNEL_REGION_ID) + llp = mmu_psize_defs[mmu_linear_psize].sllp; + else + llp = mmu_psize_defs[mmu_virtual_psize].sllp; + slb[0] = (get_kernel_vsid(ea) << SLB_VSID_SHIFT) | + SLB_VSID_KERNEL | llp; slb[1] = (ea & ESID_MASK) | SLB_ESID_V; - - /* Large pages are used for kernel text/data, but not vmalloc. */ - if (cpu_has_feature(CPU_FTR_16M_PAGE) - && REGION_ID(ea) == KERNEL_REGION_ID) - slb[0] |= SLB_VSID_L; } static inline void load_mfc_slb(struct spu *spu, u64 slb[2], int slbe)