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| author | arnd@arndb.de <arnd@arndb.de> | 2006-06-19 20:33:23 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-06-21 15:01:30 +1000 |
| commit | 724bd80e8102ac137868b23fad2b06af65f8e168 (patch) | |
| tree | 768d32aa894a06abec676e26088b44072ce817bf /arch/powerpc | |
| parent | 0309f02d8e1b68811e513bdd06015672d0696af5 (diff) | |
| download | kernel_samsung_tuna-724bd80e8102ac137868b23fad2b06af65f8e168.zip kernel_samsung_tuna-724bd80e8102ac137868b23fad2b06af65f8e168.tar.gz kernel_samsung_tuna-724bd80e8102ac137868b23fad2b06af65f8e168.tar.bz2 | |
[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 <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/cell/spu_base.c | 11 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/switch.c | 14 |
2 files changed, 16 insertions, 9 deletions
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index d5877aa..fd6ea57 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 60f8b36..97a0e80 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) |