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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-26 13:49:29 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-26 13:49:29 -0700
commit0e4bd10c9b7e9ed65132f5935328275deb760384 (patch)
treeff5bd68ba7d6eb960fe2f818aa7e30d542c954a4
parentec3b67c11df42362ccda81261d62829042f223f0 (diff)
parent208652d6b2cb9d7155ca8ff8691c8ef88c8250af (diff)
downloadlinux-0e4bd10c9b7e9ed65132f5935328275deb760384.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/x86
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/x86: x86: kill the old i386 and x86_64 directories x86: move i386 and x86_64 Kconfig files to x86 directory kconfig: small code refactoring in kconfig Makefile x86: unification of i386 and x86_64 Kconfig.debug x86: move defconfig files for i386 and x86_64 to x86 x86: move i386 and x86_64 Makefiles to arch/x86
-rw-r--r--Makefile7
-rw-r--r--arch/i386/.gitignore1
-rw-r--r--arch/x86/Kconfig.cpu (renamed from arch/i386/Kconfig.cpu)0
-rw-r--r--arch/x86/Kconfig.debug (renamed from arch/i386/Kconfig.debug)51
-rw-r--r--arch/x86/Kconfig.i386 (renamed from arch/i386/Kconfig)4
-rw-r--r--arch/x86/Kconfig.x86_64 (renamed from arch/x86_64/Kconfig)2
-rw-r--r--arch/x86/Makefile16
-rw-r--r--arch/x86/Makefile_32 (renamed from arch/i386/Makefile)7
-rw-r--r--arch/x86/Makefile_32.cpu (renamed from arch/i386/Makefile.cpu)0
-rw-r--r--arch/x86/Makefile_64 (renamed from arch/x86_64/Makefile)5
-rw-r--r--arch/x86/configs/i386_defconfig (renamed from arch/i386/defconfig)0
-rw-r--r--arch/x86/configs/x86_64_defconfig (renamed from arch/x86_64/defconfig)0
-rw-r--r--arch/x86_64/.gitignore1
-rw-r--r--arch/x86_64/Kconfig.debug61
-rw-r--r--scripts/kconfig/Makefile35
15 files changed, 89 insertions, 101 deletions
diff --git a/Makefile b/Makefile
index 2a4729024dfb..8816060cdf40 100644
--- a/Makefile
+++ b/Makefile
@@ -196,6 +196,9 @@ CROSS_COMPILE ?=
UTS_MACHINE := $(ARCH)
SRCARCH := $(ARCH)
+# for i386 and x86_64 we use SRCARCH equal to x86
+SRCARCH := $(if $(filter x86_64 i386,$(SRCARCH)),x86,$(SRCARCH))
+
KCONFIG_CONFIG ?= .config
# SHELL used by kbuild
@@ -418,7 +421,7 @@ ifeq ($(config-targets),1)
# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
# KBUILD_DEFCONFIG may point out an alternative default configuration
# used for 'make defconfig'
-include $(srctree)/arch/$(ARCH)/Makefile
+include $(srctree)/arch/$(SRCARCH)/Makefile
export KBUILD_DEFCONFIG
config %config: scripts_basic outputmakefile FORCE
@@ -497,7 +500,7 @@ else
KBUILD_CFLAGS += -O2
endif
-include $(srctree)/arch/$(ARCH)/Makefile
+include $(srctree)/arch/$(SRCARCH)/Makefile
ifdef CONFIG_FRAME_POINTER
KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
diff --git a/arch/i386/.gitignore b/arch/i386/.gitignore
deleted file mode 100644
index 36ef4c374d25..000000000000
--- a/arch/i386/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-boot
diff --git a/arch/i386/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 0e2adadf5905..0e2adadf5905 100644
--- a/arch/i386/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
diff --git a/arch/i386/Kconfig.debug b/arch/x86/Kconfig.debug
index f03531eacdfb..970b2defe7df 100644
--- a/arch/i386/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -1,14 +1,14 @@
menu "Kernel hacking"
config TRACE_IRQFLAGS_SUPPORT
- bool
- default y
+ def_bool y
source "lib/Kconfig.debug"
config EARLY_PRINTK
bool "Early printk" if EMBEDDED && DEBUG_KERNEL
default y
+ depends on X86_32
help
Write kernel log output directly into the VGA buffer or to a serial
port.
@@ -37,10 +37,12 @@ config DEBUG_STACK_USAGE
comment "Page alloc debug is incompatible with Software Suspend on i386"
depends on DEBUG_KERNEL && HIBERNATION
+ depends on X86_32
config DEBUG_PAGEALLOC
bool "Debug page memory allocations"
depends on DEBUG_KERNEL && !HIBERNATION && !HUGETLBFS
+ depends on X86_32
help
Unmap pages from the kernel linear mapping after free_pages().
This results in a large slowdown, but helps to find certain types
@@ -59,6 +61,7 @@ config DEBUG_RODATA
config 4KSTACKS
bool "Use 4Kb for kernel stacks instead of 8Kb"
depends on DEBUG_KERNEL
+ depends on X86_32
help
If you say Y here the kernel will use a 4Kb stacksize for the
kernel stack attached to each process/thread. This facilitates
@@ -67,22 +70,50 @@ config 4KSTACKS
will also use IRQ stacks to compensate for the reduced stackspace.
config X86_FIND_SMP_CONFIG
- bool
+ def_bool y
depends on X86_LOCAL_APIC || X86_VOYAGER
- default y
+ depends on X86_32
config X86_MPPARSE
- bool
+ def_bool y
depends on X86_LOCAL_APIC && !X86_VISWS
- default y
+ depends on X86_32
config DOUBLEFAULT
default y
bool "Enable doublefault exception handler" if EMBEDDED
+ depends on X86_32
+ help
+ This option allows trapping of rare doublefault exceptions that
+ would otherwise cause a system to silently reboot. Disabling this
+ option saves about 4k and might cause you much additional grey
+ hair.
+
+config IOMMU_DEBUG
+ bool "Enable IOMMU debugging"
+ depends on IOMMU && DEBUG_KERNEL
+ depends on X86_64
help
- This option allows trapping of rare doublefault exceptions that
- would otherwise cause a system to silently reboot. Disabling this
- option saves about 4k and might cause you much additional grey
- hair.
+ Force the IOMMU to on even when you have less than 4GB of
+ memory and add debugging code. On overflow always panic. And
+ allow to enable IOMMU leak tracing. Can be disabled at boot
+ time with iommu=noforce. This will also enable scatter gather
+ list merging. Currently not recommended for production
+ code. When you use it make sure you have a big enough
+ IOMMU/AGP aperture. Most of the options enabled by this can
+ be set more finegrained using the iommu= command line
+ options. See Documentation/x86_64/boot-options.txt for more
+ details.
+
+config IOMMU_LEAK
+ bool "IOMMU leak tracing"
+ depends on DEBUG_KERNEL
+ depends on IOMMU_DEBUG
+ help
+ Add a simple leak tracer to the IOMMU code. This is useful when you
+ are debugging a buggy device driver that leaks IOMMU mappings.
+
+#config X86_REMOTE_DEBUG
+# bool "kgdb debugging stub"
endmenu
diff --git a/arch/i386/Kconfig b/arch/x86/Kconfig.i386
index b4437ce0f973..7331efe891a7 100644
--- a/arch/i386/Kconfig
+++ b/arch/x86/Kconfig.i386
@@ -287,7 +287,7 @@ config ES7000_CLUSTERED_APIC
default y
depends on SMP && X86_ES7000 && MPENTIUMIII
-source "arch/i386/Kconfig.cpu"
+source "arch/x86/Kconfig.cpu"
config HPET_TIMER
bool "HPET Timer Support"
@@ -1272,7 +1272,7 @@ source "fs/Kconfig"
source "kernel/Kconfig.instrumentation"
-source "arch/i386/Kconfig.debug"
+source "arch/x86/Kconfig.debug"
source "security/Kconfig"
diff --git a/arch/x86_64/Kconfig b/arch/x86/Kconfig.x86_64
index 308970aa5382..e2542e5b536c 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86/Kconfig.x86_64
@@ -835,7 +835,7 @@ source fs/Kconfig
source "kernel/Kconfig.instrumentation"
-source "arch/x86_64/Kconfig.debug"
+source "arch/x86/Kconfig.debug"
source "security/Kconfig"
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
new file mode 100644
index 000000000000..309597386a77
--- /dev/null
+++ b/arch/x86/Makefile
@@ -0,0 +1,16 @@
+# Unified Makefile for i386 and x86_64
+
+# select defconfig based on actual architecture
+KBUILD_DEFCONFIG := $(ARCH)_defconfig
+
+# # No need to remake these files
+$(srctree)/arch/x86/Makefile%: ;
+
+ifeq ($(ARCH),i386)
+ include $(srctree)/arch/x86/Makefile_32
+else
+ include $(srctree)/arch/x86/Makefile_64
+endif
+
+
+
diff --git a/arch/i386/Makefile b/arch/x86/Makefile_32
index f5b9a37def8b..346ac0766875 100644
--- a/arch/i386/Makefile
+++ b/arch/x86/Makefile_32
@@ -1,5 +1,5 @@
#
-# i386/Makefile
+# i386 Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
@@ -17,9 +17,6 @@
# 20050320 Kianusch Sayah Karadji <kianusch@sk-tech.net>
# Added support for GEODE CPU
-# Fill in SRCARCH
-SRCARCH := x86
-
# BITS is used as extension for files which are available in a 32 bit
# and a 64 bit version to simplify shared Makefiles.
# e.g.: obj-y += foo_$(BITS).o
@@ -46,7 +43,7 @@ KBUILD_CFLAGS += -pipe -msoft-float -mregparm=3 -freg-struct-return
KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
# CPU-specific tuning. Anything which can be shared with UML should go here.
-include $(srctree)/arch/i386/Makefile.cpu
+include $(srctree)/arch/x86/Makefile_32.cpu
# temporary until string.h is fixed
cflags-y += -ffreestanding
diff --git a/arch/i386/Makefile.cpu b/arch/x86/Makefile_32.cpu
index e372b584e919..e372b584e919 100644
--- a/arch/i386/Makefile.cpu
+++ b/arch/x86/Makefile_32.cpu
diff --git a/arch/x86_64/Makefile b/arch/x86/Makefile_64
index 20eb69bd5a6d..57e714a47af7 100644
--- a/arch/x86_64/Makefile
+++ b/arch/x86/Makefile_64
@@ -1,5 +1,5 @@
#
-# x86_64/Makefile
+# x86_64 Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
@@ -21,9 +21,6 @@
#
# $Id: Makefile,v 1.31 2002/03/22 15:56:07 ak Exp $
-# Fill in SRCARCH
-SRCARCH := x86
-
# BITS is used as extension for files which are available in a 32 bit
# and a 64 bit version to simplify shared Makefiles.
# e.g.: obj-y += foo_$(BITS).o
diff --git a/arch/i386/defconfig b/arch/x86/configs/i386_defconfig
index 54ee1764fdae..54ee1764fdae 100644
--- a/arch/i386/defconfig
+++ b/arch/x86/configs/i386_defconfig
diff --git a/arch/x86_64/defconfig b/arch/x86/configs/x86_64_defconfig
index b091c5e35558..b091c5e35558 100644
--- a/arch/x86_64/defconfig
+++ b/arch/x86/configs/x86_64_defconfig
diff --git a/arch/x86_64/.gitignore b/arch/x86_64/.gitignore
deleted file mode 100644
index 36ef4c374d25..000000000000
--- a/arch/x86_64/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-boot
diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug
deleted file mode 100644
index 775d211a5cf9..000000000000
--- a/arch/x86_64/Kconfig.debug
+++ /dev/null
@@ -1,61 +0,0 @@
-menu "Kernel hacking"
-
-config TRACE_IRQFLAGS_SUPPORT
- bool
- default y
-
-source "lib/Kconfig.debug"
-
-config DEBUG_RODATA
- bool "Write protect kernel read-only data structures"
- depends on DEBUG_KERNEL
- help
- Mark the kernel read-only data as write-protected in the pagetables,
- in order to catch accidental (and incorrect) writes to such const data.
- This option may have a slight performance impact because a portion
- of the kernel code won't be covered by a 2MB TLB anymore.
- If in doubt, say "N".
-
-config IOMMU_DEBUG
- depends on IOMMU && DEBUG_KERNEL
- bool "Enable IOMMU debugging"
- help
- Force the IOMMU to on even when you have less than 4GB of
- memory and add debugging code. On overflow always panic. And
- allow to enable IOMMU leak tracing. Can be disabled at boot
- time with iommu=noforce. This will also enable scatter gather
- list merging. Currently not recommended for production
- code. When you use it make sure you have a big enough
- IOMMU/AGP aperture. Most of the options enabled by this can
- be set more finegrained using the iommu= command line
- options. See Documentation/x86_64/boot-options.txt for more
- details.
-
-config IOMMU_LEAK
- bool "IOMMU leak tracing"
- depends on DEBUG_KERNEL
- depends on IOMMU_DEBUG
- help
- Add a simple leak tracer to the IOMMU code. This is useful when you
- are debugging a buggy device driver that leaks IOMMU mappings.
-
-config DEBUG_STACKOVERFLOW
- bool "Check for stack overflows"
- depends on DEBUG_KERNEL
- help
- This option will cause messages to be printed if free stack space
- drops below a certain limit.
-
-config DEBUG_STACK_USAGE
- bool "Stack utilization instrumentation"
- depends on DEBUG_KERNEL
- help
- Enables the display of the minimum amount of free stack which each
- task has ever had available in the sysrq-T and sysrq-P debug output.
-
- This option will slow down process creation somewhat.
-
-#config X86_REMOTE_DEBUG
-# bool "kgdb debugging stub"
-
-endmenu
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 83c5e76414ce..59594126e8b6 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -4,23 +4,30 @@
PHONY += oldconfig xconfig gconfig menuconfig config silentoldconfig update-po-config
+# If a arch/$(SRCARCH)/Kconfig.$(ARCH) file exist use it
+ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/Kconfig.$(ARCH)),)
+ Kconfig := arch/$(SRCARCH)/Kconfig.$(ARCH)
+else
+ Kconfig := arch/$(SRCARCH)/Kconfig
+endif
+
xconfig: $(obj)/qconf
- $< arch/$(ARCH)/Kconfig
+ $< $(Kconfig)
gconfig: $(obj)/gconf
- $< arch/$(ARCH)/Kconfig
+ $< $(Kconfig)
menuconfig: $(obj)/mconf
- $< arch/$(ARCH)/Kconfig
+ $< $(Kconfig)
config: $(obj)/conf
- $< arch/$(ARCH)/Kconfig
+ $< $(Kconfig)
oldconfig: $(obj)/conf
- $< -o arch/$(ARCH)/Kconfig
+ $< -o $(Kconfig)
silentoldconfig: $(obj)/conf
- $< -s arch/$(ARCH)/Kconfig
+ $< -s $(Kconfig)
# Create new linux.po file
# Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
@@ -45,27 +52,27 @@ update-po-config: $(obj)/kxgettext
PHONY += randconfig allyesconfig allnoconfig allmodconfig defconfig
randconfig: $(obj)/conf
- $< -r arch/$(ARCH)/Kconfig
+ $< -r $(Kconfig)
allyesconfig: $(obj)/conf
- $< -y arch/$(ARCH)/Kconfig
+ $< -y $(Kconfig)
allnoconfig: $(obj)/conf
- $< -n arch/$(ARCH)/Kconfig
+ $< -n $(Kconfig)
allmodconfig: $(obj)/conf
- $< -m arch/$(ARCH)/Kconfig
+ $< -m $(Kconfig)
defconfig: $(obj)/conf
ifeq ($(KBUILD_DEFCONFIG),)
- $< -d arch/$(ARCH)/Kconfig
+ $< -d $(Kconfig)
else
- @echo *** Default configuration is based on '$(KBUILD_DEFCONFIG)'
- $(Q)$< -D arch/$(ARCH)/configs/$(KBUILD_DEFCONFIG) arch/$(ARCH)/Kconfig
+ @echo "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
+ $(Q)$< -D arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
endif
%_defconfig: $(obj)/conf
- $(Q)$< -D arch/$(ARCH)/configs/$@ arch/$(ARCH)/Kconfig
+ $(Q)$< -D arch/$(SRCARCH)/configs/$@ $(Kconfig)
# Help text used by make help
help: