cpu: Register a generic CPU device on architectures that currently do not

frv, h8300, m68k, microblaze, openrisc, score, um and xtensa currently
do not register a CPU device.  Add the config option GENERIC_CPU_DEVICES
which causes a generic CPU device to be registered for each present CPU,
and make all these architectures select it.

Richard Weinberger <richard@nod.at> covered UML and suggested using
per_cpu.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 files changed, 8 insertions, 0 deletions

diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index bbbf7927f238..a685910d2d5c 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -8,6 +8,7 @@ config FRV
         select HAVE_GENERIC_HARDIRQS
         select GENERIC_IRQ_SHOW
         select ARCH_HAVE_NMI_SAFE_CMPXCHG
+        select GENERIC_CPU_DEVICES
 
 config ZONE_DMA
         bool
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index d1f377f5d3b6..56e890df5053 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -4,6 +4,7 @@ config H8300
         select HAVE_IDE
         select HAVE_GENERIC_HARDIRQS
         select GENERIC_IRQ_SHOW
+        select GENERIC_CPU_DEVICES
 
 config SYMBOL_PREFIX
         string
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 99c363617f27..ae413d4a8bb7 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -6,6 +6,7 @@ config M68K
         select HAVE_GENERIC_HARDIRQS
         select GENERIC_IRQ_SHOW
         select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
+        select GENERIC_CPU_DEVICES
 
 config RWSEM_GENERIC_SPINLOCK
         bool
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index f0eead74fff6..74f23a460ba2 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -18,6 +18,7 @@ config MICROBLAZE
         select GENERIC_IRQ_PROBE
         select GENERIC_IRQ_SHOW
         select GENERIC_PCI_IOMAP
+        select GENERIC_CPU_DEVICES
 
 config SWAP
         def_bool n
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 081a54f1a93d..bc428b5f126c 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -15,6 +15,7 @@ config OPENRISC
         select GENERIC_IRQ_PROBE
         select GENERIC_IRQ_SHOW
         select GENERIC_IOMAP
+        select GENERIC_CPU_DEVICES
 
 config MMU
         def_bool y
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index 3df65d39abc1..4b285779ac05 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -8,6 +8,7 @@ config SCORE
        select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
        select ARCH_DISCARD_MEMBLOCK
+       select GENERIC_CPU_DEVICES
 
 choice
         prompt "System type"
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index a9234838e8a2..b37ae706af3e 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -8,6 +8,7 @@ config UML
         default y
         select HAVE_GENERIC_HARDIRQS
         select GENERIC_IRQ_SHOW
+        select GENERIC_CPU_DEVICES
 
 config MMU
         bool
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index c346ccdce0df..8a3f8351f438 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -9,6 +9,7 @@ config XTENSA
         select HAVE_IDE
         select HAVE_GENERIC_HARDIRQS
         select GENERIC_IRQ_SHOW
+        select GENERIC_CPU_DEVICES
         help
           Xtensa processors are 32-bit RISC machines designed by Tensilica
           primarily for embedded systems.  These processors are both