提交 724bd80e 编写于 作者: A arnd@arndb.de 提交者: Paul Mackerras

[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: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
上级 0309f02d
......@@ -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);
......
......@@ -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)
......
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