powerpc/mm/64s: Move THP reqs into a separate symbol

Move the Kconfig symbols related to transparent hugepages (THP) under a
separate config symbol, separate from CONFIG_PPC_BOOK3S_64.

The new symbol is automatically enabled if CONFIG_PPC_BOOK3S_64 is
enabled, so there is no behaviour change, except for the existence of
the new PPC_THP symbol.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240823032911.1238471-1-mpe@ellerman.id.au

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 4b0d7d4f88f6617cb8533071833ab67cb5ab12aa..9536e591c72a93a182bc09f87f979f409ff3b90f 100644 (file)
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -84,11 +84,8 @@ config PPC_BOOK3S_64
        bool "Server processors"
        select PPC_FPU
        select PPC_HAVE_PMU_SUPPORT
-       select HAVE_ARCH_TRANSPARENT_HUGEPAGE
-       select HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
        select ARCH_ENABLE_HUGEPAGE_MIGRATION if HUGETLB_PAGE && MIGRATION
        select ARCH_ENABLE_SPLIT_PMD_PTLOCK
-       select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE
        select ARCH_SUPPORTS_HUGETLBFS
        select ARCH_SUPPORTS_NUMA_BALANCING
        select HAVE_MOVE_PMD
@@ -108,6 +105,13 @@ config PPC_BOOK3E_64
 
 endchoice
 
+config PPC_THP
+       def_bool y
+       depends on PPC_BOOK3S_64
+       select HAVE_ARCH_TRANSPARENT_HUGEPAGE
+       select HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
+       select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE
+
 choice
        prompt "CPU selection"
        help