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Subject[PATCH v7 03/24] powerpc/mm: Define CONFIG_SPECULATIVE_PAGE_FAULT
Date
Define CONFIG_SPECULATIVE_PAGE_FAULT for BOOK3S_64 and SMP. This enables
the Speculative Page Fault handler.

Support is only provide for BOOK3S_64 currently because:
- require CONFIG_PPC_STD_MMU because checks done in
set_access_flags_filter()
- require BOOK3S because we can't support for book3e_hugetlb_preload()
called by update_mmu_cache()

Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
---
arch/powerpc/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 9d3329811cc1..57c19ee79c00 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -232,6 +232,7 @@ config PPC
select OLD_SIGACTION if PPC32
select OLD_SIGSUSPEND
select SPARSE_IRQ
+ select SPECULATIVE_PAGE_FAULT if PPC_BOOK3S_64 && SMP
select SYSCTL_EXCEPTION_TRACE
select VIRT_TO_BUS if !PPC64
#
--
2.7.4
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