return (pte_val(pte) & ~H_PTE_NONE_MASK) == 0;
}
+unsigned long pte_get_hash_gslot(unsigned long vpn, unsigned long shift,
+ int ssize, real_pte_t rpte, unsigned int subpg_index);
+
/* This low level function performs the actual PTE insertion
* Setting the PTE depends on the MMU type and other factors. It's
* an horrible mess that I'm not going to try to clean up now but
}
#endif
+/*
+ * Return the global hash slot, corresponding to the given PTE, which contains
+ * the HPTE.
+ */
+unsigned long pte_get_hash_gslot(unsigned long vpn, unsigned long shift,
+ int ssize, real_pte_t rpte, unsigned int subpg_index)
+{
+ unsigned long hash, gslot, hidx;
+
+ hash = hpt_hash(vpn, shift, ssize);
+ hidx = __rpte_to_hidx(rpte, subpg_index);
+ if (hidx & _PTEIDX_SECONDARY)
+ hash = ~hash;
+ gslot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
+ gslot += hidx & _PTEIDX_GROUP_IX;
+ return gslot;
+}
+
/* WARNING: This is called from hash_low_64.S, if you change this prototype,
* do not forget to update the assembly call site !
*/