Merge tag 'powerpc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Notable changes:

   - A large series to rewrite our SLB miss handling, replacing a lot of
     fairly complicated asm with much fewer lines of C.

   - Following on from that, we now maintain a cache of SLB entries for
     each process and preload them on context switch. Leading to a 27%
     speedup for our context switch benchmark on Power9.

   - Improvements to our handling of SLB multi-hit errors. We now print
     more debug information when they occur, and try to continue running
     by flushing the SLB and reloading, rather than treating them as
     fatal.

   - Enable THP migration on 64-bit Book3S machines (eg. Power7/8/9).

   - Add support for physical memory up to 2PB in the linear mapping on
     64-bit Book3S. We only support up to 512TB as regular system
     memory, otherwise the percpu allocator runs out of vmalloc space.

   - Add stack protector support for 32 and 64-bit, with a per-task
     canary.

   - Add support for PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP.

   - Support recognising "big cores" on Power9, where two SMT4 cores are
     presented to us as a single SMT8 core.

   - A large series to cleanup some of our ioremap handling and PTE
     flags.

   - Add a driver for the PAPR SCM (storage class memory) interface,
     allowing guests to operate on SCM devices (acked by Dan).

   - Changes to our ftrace code to handle very large kernels, where we
     need to use a trampoline to get to ftrace_caller().

  And many other smaller enhancements and cleanups.

  Thanks to: Alan Modra, Alistair Popple, Aneesh Kumar K.V, Anton
  Blanchard, Aravinda Prasad, Bartlomiej Zolnierkiewicz, Benjamin
  Herrenschmidt, Breno Leitao, Cédric Le Goater, Christophe Leroy,
  Christophe Lombard, Dan Carpenter, Daniel Axtens, Finn Thain, Gautham
  R. Shenoy, Gustavo Romero, Haren Myneni, Hari Bathini, Jia Hongtao,
  Joel Stanley, John Allen, Laurent Dufour, Madhavan Srinivasan, Mahesh
  Salgaonkar, Mark Hairgrove, Masahiro Yamada, Michael Bringmann,
  Michael Neuling, Michal Suchanek, Murilo Opsfelder Araujo, Nathan
  Fontenot, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Oliver
  O'Halloran, Paul Mackerras, Petr Vorel, Rashmica Gupta, Reza Arbab,
  Rob Herring, Sam Bobroff, Samuel Mendoza-Jonas, Scott Wood, Stan
  Johnson, Stephen Rothwell, Stewart Smith, Suraj Jitindar Singh, Tyrel
  Datwyler, Vaibhav Jain, Vasant Hegde, YueHaibing, zhong jiang"

* tag 'powerpc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (221 commits)
  Revert "selftests/powerpc: Fix out-of-tree build errors"
  powerpc/msi: Fix compile error on mpc83xx
  powerpc: Fix stack protector crashes on CPU hotplug
  powerpc/traps: restore recoverability of machine_check interrupts
  powerpc/64/module: REL32 relocation range check
  powerpc/64s/radix: Fix radix__flush_tlb_collapsed_pmd double flushing pmd
  selftests/powerpc: Add a test of wild bctr
  powerpc/mm: Fix page table dump to work on Radix
  powerpc/mm/radix: Display if mappings are exec or not
  powerpc/mm/radix: Simplify split mapping logic
  powerpc/mm/radix: Remove the retry in the split mapping logic
  powerpc/mm/radix: Fix small page at boundary when splitting
  powerpc/mm/radix: Fix overuse of small pages in splitting logic
  powerpc/mm/radix: Fix off-by-one in split mapping logic
  powerpc/ftrace: Handle large kernel configs
  powerpc/mm: Fix WARN_ON with THP NUMA migration
  selftests/powerpc: Fix out-of-tree build errors
  powerpc/time: no steal_time when CONFIG_PPC_SPLPAR is not selected
  powerpc/time: Only set CONFIG_ARCH_HAS_SCALED_CPUTIME on PPC64
  powerpc/time: isolate scaled cputime accounting in dedicated functions.
  ...

1 files changed, 0 insertions, 21 deletions

diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 14ef17e10ec9..260a56b7602d 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -23,7 +23,6 @@ source "arch/powerpc/platforms/amigaone/Kconfig"
 
 config KVM_GUEST
 	bool "KVM Guest support"
-	default n
 	select EPAPR_PARAVIRT
 	---help---
 	  This option enables various optimizations for running under the KVM
@@ -34,7 +33,6 @@ config KVM_GUEST
 
 config EPAPR_PARAVIRT
 	bool "ePAPR para-virtualization support"
-	default n
 	help
 	  Enables ePAPR para-virtualization support for guests.
 
@@ -74,7 +72,6 @@ config PPC_DT_CPU_FTRS
 config UDBG_RTAS_CONSOLE
 	bool "RTAS based debug console"
 	depends on PPC_RTAS
-	default n
 
 config PPC_SMP_MUXED_IPI
 	bool
@@ -86,16 +83,13 @@ config PPC_SMP_MUXED_IPI
 
 config IPIC
 	bool
-	default n
 
 config MPIC
 	bool
-	default n
 
 config MPIC_TIMER
 	bool "MPIC Global Timer"
 	depends on MPIC && FSL_SOC
-	default n
 	help
 	  The MPIC global timer is a hardware timer inside the
 	  Freescale PIC complying with OpenPIC standard. When the
@@ -107,7 +101,6 @@ config MPIC_TIMER
 config FSL_MPIC_TIMER_WAKEUP
 	tristate "Freescale MPIC global timer wakeup driver"
 	depends on FSL_SOC &&  MPIC_TIMER && PM
-	default n
 	help
 	  The driver provides a way to wake up the system by MPIC
 	  timer.
@@ -115,43 +108,35 @@ config FSL_MPIC_TIMER_WAKEUP
 
 config PPC_EPAPR_HV_PIC
 	bool
-	default n
 	select EPAPR_PARAVIRT
 
 config MPIC_WEIRD
 	bool
-	default n
 
 config MPIC_MSGR
 	bool "MPIC message register support"
 	depends on MPIC
-	default n
 	help
 	  Enables support for the MPIC message registers.  These
 	  registers are used for inter-processor communication.
 
 config PPC_I8259
 	bool
-	default n
 
 config U3_DART
 	bool
 	depends on PPC64
-	default n
 
 config PPC_RTAS
 	bool
-	default n
 
 config RTAS_ERROR_LOGGING
 	bool
 	depends on PPC_RTAS
-	default n
 
 config PPC_RTAS_DAEMON
 	bool
 	depends on PPC_RTAS
-	default n
 
 config RTAS_PROC
 	bool "Proc interface to RTAS"
@@ -164,11 +149,9 @@ config RTAS_FLASH
 
 config MMIO_NVRAM
 	bool
-	default n
 
 config MPIC_U3_HT_IRQS
 	bool
-	default n
 
 config MPIC_BROKEN_REGREAD
 	bool
@@ -187,15 +170,12 @@ config EEH
 
 config PPC_MPC106
 	bool
-	default n
 
 config PPC_970_NAP
 	bool
-	default n
 
 config PPC_P7_NAP
 	bool
-	default n
 
 config PPC_INDIRECT_PIO
 	bool
@@ -295,7 +275,6 @@ config CPM2
 
 config FSL_ULI1575
 	bool
-	default n
 	select GENERIC_ISA_DMA
 	help
 	  Supports for the ULI1575 PCIe south bridge that exists on some