Thread (52 messages) 52 messages, 5 authors, 2018-05-16
STALE2948d
Revisions (12)
  1. v2 [diff vs current]
  2. v1 [diff vs current]
  3. v2 [diff vs current]
  4. v3 [diff vs current]
  5. v4 [diff vs current]
  6. v5 [diff vs current]
  7. v6 [diff vs current]
  8. v7 [diff vs current]
  9. v8 [diff vs current]
  10. v9 [diff vs current]
  11. v10 current
  12. v11 [diff vs current]

[PATCH v10 03/25] powerpc/mm: set ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT

From: Laurent Dufour <hidden>
Date: 2018-04-17 14:33:57
Also in: linux-mm, lkml
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Michael Ellerman, Linus Torvalds

Set ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT for BOOK3S_64. 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()

Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Laurent Dufour <redacted>
---
 arch/powerpc/Kconfig | 1 +
 1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c32a181a7cbb..21ef887da7a3 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -233,6 +233,7 @@ config PPC
 	select OLD_SIGACTION			if PPC32
 	select OLD_SIGSUSPEND
 	select SPARSE_IRQ
+	select ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT if PPC_BOOK3S_64
 	select SYSCTL_EXCEPTION_TRACE
 	select VIRT_TO_BUS			if !PPC64
 	#
-- 
2.7.4
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help