Commit c85ab4fe authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

powerpc/64s: Only set HAVE_ARCH_UNMAPPED_AREA when CONFIG_PPC_64S_HASH_MMU is set 



When CONFIG_PPC_64S_HASH_MMU is not set, slice.c is not built and
arch_get_unmapped_area() and arch_get_unmapped_area_topdown() are
not provided because RADIX uses the generic ones.

Therefore, neither set HAVE_ARCH_UNMAPPED_AREA nor
HAVE_ARCH_UNMAPPED_AREA_TOPDOWN.

Fixes: ab57bd75 ("powerpc/mm: Move get_unmapped_area functions to slice.c")
Reported-by: default avatarLaurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: default avatarChristophe Leroy <christophe.leroy@csgroup.eu>
Tested-by: default avatarLaurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/e438c6cc09f94085e56733ed2d6e84333c35292a.1653370913.git.christophe.leroy@csgroup.eu
parent 14554d92

arch/powerpc/include/asm/book3s/64/slice.h

+2 −0
Original line number Diff line number Diff line
@@ -4,11 +4,13 @@ 


#ifndef __ASSEMBLY__



#ifdef CONFIG_PPC_64S_HASH_MMU

#ifdef CONFIG_HUGETLB_PAGE

#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA

#endif

#define HAVE_ARCH_UNMAPPED_AREA

#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN

#endif



#define SLICE_LOW_SHIFT		28

#define SLICE_LOW_TOP		(0x100000000ul)