unsigned long addr, pte_t *ptep,
pte_t pte, int dirty);
+void gigantic_hugetlb_cma_reserve(void) __init;
#include <asm-generic/hugetlb.h>
#else /* ! CONFIG_HUGETLB_PAGE */
{
return NULL;
}
+
+
+static inline void __init gigantic_hugetlb_cma_reserve(void)
+{
+}
+
#endif /* CONFIG_HUGETLB_PAGE */
#endif /* _ASM_POWERPC_HUGETLB_H */
/* Reserve large chunks of memory for use by CMA for KVM. */
kvm_cma_reserve();
+ /* Reserve large chunks of memory for us by CMA for hugetlb */
+ gigantic_hugetlb_cma_reserve();
+
klp_init_thread_info(&init_task);
init_mm.start_code = (unsigned long)_stext;
}
}
}
+
+void __init gigantic_hugetlb_cma_reserve(void)
+{
+ unsigned long order = 0;
+
+ if (radix_enabled())
+ order = PUD_SHIFT - PAGE_SHIFT;
+ else if (!firmware_has_feature(FW_FEATURE_LPAR) && mmu_psize_defs[MMU_PAGE_16G].shift)
+ /*
+ * For pseries we do use ibm,expected#pages for reserving 16G pages.
+ */
+ order = mmu_psize_to_shift(MMU_PAGE_16G) - PAGE_SHIFT;
+
+ if (order) {
+ VM_WARN_ON(order < MAX_ORDER);
+ hugetlb_cma_reserve(order);
+ }
+}