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powerpc/mm: cleanup remaining ifdef mess in hugetlbpage.c

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Only 3 subarches support huge pages. So when it is either 2 of them,
it is not the third one.

And mmu_has_feature() is known by all subarches so IS_ENABLED() can
be used instead of #ifdef

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2019-04-26 05:59:49 +00:00 committed by Michael Ellerman
parent c5710cd207
commit 4df4b27585
1 changed files with 5 additions and 7 deletions
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12
arch/powerpc/mm/hugetlbpage.c
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@ -226,7 +226,7 @@ int __init alloc_bootmem_huge_page(struct hstate *h)
return __alloc_bootmem_huge_page(h);
}
#if defined(CONFIG_PPC_FSL_BOOK3E) || defined(CONFIG_PPC_8xx)
#ifndef CONFIG_PPC_BOOK3S_64
#define HUGEPD_FREELIST_SIZE \
((PAGE_SIZE - sizeof(struct hugepd_freelist)) / sizeof(pte_t))
@ -595,10 +595,10 @@ static int __init hugetlbpage_init(void)
return 0;
}
#if !defined(CONFIG_PPC_FSL_BOOK3E) && !defined(CONFIG_PPC_8xx)
if (!radix_enabled() && !mmu_has_feature(MMU_FTR_16M_PAGE))
if (IS_ENABLED(CONFIG_PPC_BOOK3S_64) && !radix_enabled() &&
!mmu_has_feature(MMU_FTR_16M_PAGE))
return -ENODEV;
#endif
for (psize = 0; psize < MMU_PAGE_COUNT; ++psize) {
unsigned shift;
unsigned pdshift;
@ -636,10 +636,8 @@ static int __init hugetlbpage_init(void)
pgtable_cache_add(PTE_INDEX_SIZE);
else if (pdshift > shift)
pgtable_cache_add(pdshift - shift);
#if defined(CONFIG_PPC_FSL_BOOK3E) || defined(CONFIG_PPC_8xx)
else
else if (IS_ENABLED(CONFIG_PPC_FSL_BOOK3E) || IS_ENABLED(CONFIG_PPC_8xx))
pgtable_cache_add(PTE_T_ORDER);
#endif
}
if (IS_ENABLED(HUGETLB_PAGE_SIZE_VARIABLE))