From 2578bfae84a78bd46fdbc0d2f9d39e9fbc9c8a3f Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Fri, 21 Sep 2007 10:16:20 +1000 Subject: [PATCH] [POWERPC] Create and use CONFIG_WORD_SIZE Linus made this suggestion for the x86 merge and this starts the process for powerpc. We assume that CONFIG_PPC64 implies CONFIG_PPC_MERGE and CONFIG_PPC_STD_MMU_32 implies CONFIG_PPC_STD_MMU. Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras --- arch/powerpc/Kconfig | 5 +++++ arch/powerpc/Makefile | 21 ++++++++++++--------- arch/powerpc/kernel/Makefile | 30 +++++++++++++----------------- arch/powerpc/lib/Makefile | 7 ++++--- arch/powerpc/mm/Makefile | 13 ++++++++----- arch/ppc/Kconfig | 4 ++++ 6 files changed, 46 insertions(+), 34 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 26126d27d756..45e86c751f11 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -14,6 +14,11 @@ config 64BIT bool default y if PPC64 +config WORD_SIZE + int + default 64 if PPC64 + default 32 if !PPC64 + config PPC_MERGE def_bool y diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 87aff5372d6e..71632b20b81d 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -39,7 +39,6 @@ KBUILD_DEFCONFIG := $(shell uname -m)_defconfig ifeq ($(CONFIG_PPC64),y) OLDARCH := ppc64 -SZ := 64 new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi) @@ -49,16 +48,21 @@ endif else OLDARCH := ppc -SZ := 32 +endif + +# It seems there are times we use this Makefile without +# including the config file, but this replicates the old behaviour +ifeq ($(CONFIG_WORD_SIZE),) +CONFIG_WORD_SIZE := 32 endif UTS_MACHINE := $(OLDARCH) ifeq ($(HAS_BIARCH),y) -override AS += -a$(SZ) -override LD += -m elf$(SZ)ppc -override CC += -m$(SZ) -override AR := GNUTARGET=elf$(SZ)-powerpc $(AR) +override AS += -a$(CONFIG_WORD_SIZE) +override LD += -m elf$(CONFIG_WORD_SIZE)ppc +override CC += -m$(CONFIG_WORD_SIZE) +override AR := GNUTARGET=elf$(CONFIG_WORD_SIZE)-powerpc $(AR) endif LDFLAGS_vmlinux := -Bstatic @@ -72,7 +76,7 @@ AFLAGS += $(AFLAGS-y) CFLAGS += -msoft-float -pipe $(CFLAGS-y) CPP = $(CC) -E $(CFLAGS) -CHECKFLAGS += -m$(SZ) -D__powerpc__ -D__powerpc$(SZ)__ +CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ ifeq ($(CONFIG_PPC64),y) GCC_BROKEN_VEC := $(shell if [ $(call cc-version) -lt 0400 ] ; then echo "y"; fi) @@ -120,8 +124,7 @@ cpu-as-$(CONFIG_E200) += -Wa,-me200 AFLAGS += $(cpu-as-y) CFLAGS += $(cpu-as-y) -head-y := arch/powerpc/kernel/head_32.o -head-$(CONFIG_PPC64) := arch/powerpc/kernel/head_64.o +head-y := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o head-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o head-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index b37165effb65..fb33a7e71941 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -38,10 +38,10 @@ obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_6xx) += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o obj-$(CONFIG_TAU) += tau_6xx.o -obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o -obj32-$(CONFIG_HIBERNATION) += swsusp_32.o -obj64-$(CONFIG_HIBERNATION) += swsusp_64.o swsusp_asm64.o -obj32-$(CONFIG_MODULES) += module_32.o +obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o \ + swsusp_$(CONFIG_WORD_SIZE).o +obj64-$(CONFIG_HIBERNATION) += swsusp_asm64.o +obj-$(CONFIG_MODULES) += module_$(CONFIG_WORD_SIZE).o ifeq ($(CONFIG_PPC_MERGE),y) @@ -54,9 +54,10 @@ extra-$(CONFIG_8xx) := head_8xx.o extra-y += vmlinux.lds obj-y += time.o prom.o traps.o setup-common.o \ - udbg.o misc.o io.o -obj-$(CONFIG_PPC32) += entry_32.o setup_32.o misc_32.o -obj-$(CONFIG_PPC64) += misc_64.o dma_64.o iommu.o + udbg.o misc.o io.o \ + misc_$(CONFIG_WORD_SIZE).o +obj-$(CONFIG_PPC32) += entry_32.o setup_32.o +obj-$(CONFIG_PPC64) += dma_64.o iommu.o obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o obj-$(CONFIG_MODULES) += ppc_ksyms.o obj-$(CONFIG_BOOTX_TEXT) += btext.o @@ -64,16 +65,12 @@ obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_KPROBES) += kprobes.o obj-$(CONFIG_PPC_UDBG_16550) += legacy_serial.o udbg_16550.o -module-$(CONFIG_PPC64) += module_64.o -obj-$(CONFIG_MODULES) += $(module-y) - -pci64-$(CONFIG_PPC64) += pci_64.o pci_dn.o isa-bridge.o -pci32-$(CONFIG_PPC32) := pci_32.o -obj-$(CONFIG_PCI) += $(pci64-y) $(pci32-y) pci-common.o +pci64-$(CONFIG_PPC64) += pci_dn.o isa-bridge.o +obj-$(CONFIG_PCI) += pci_$(CONFIG_WORD_SIZE).o $(pci64-y) \ + pci-common.o obj-$(CONFIG_PCI_MSI) += msi.o -kexec-$(CONFIG_PPC64) := machine_kexec_64.o -kexec-$(CONFIG_PPC32) := machine_kexec_32.o -obj-$(CONFIG_KEXEC) += machine_kexec.o crash.o $(kexec-y) +obj-$(CONFIG_KEXEC) += machine_kexec.o crash.o \ + machine_kexec_$(CONFIG_WORD_SIZE).o obj-$(CONFIG_AUDIT) += audit.o obj64-$(CONFIG_AUDIT) += compat_audit.o @@ -87,7 +84,6 @@ smpobj-$(CONFIG_SMP) += smp.o endif -obj-$(CONFIG_PPC32) += $(obj32-y) obj-$(CONFIG_PPC64) += $(obj64-y) extra-$(CONFIG_PPC_FPU) += fpu.o diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index 23bbb1ea7f9f..65d492e316a6 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -7,11 +7,12 @@ EXTRA_CFLAGS += -mno-minimal-toc endif ifeq ($(CONFIG_PPC_MERGE),y) -obj-y := string.o alloc.o -obj-$(CONFIG_PPC32) += div64.o copy_32.o checksum_32.o +obj-y := string.o alloc.o \ + checksum_$(CONFIG_WORD_SIZE).o +obj-$(CONFIG_PPC32) += div64.o copy_32.o endif -obj-$(CONFIG_PPC64) += checksum_64.o copypage_64.o copyuser_64.o \ +obj-$(CONFIG_PPC64) += copypage_64.o copyuser_64.o \ memcpy_64.o usercopy_64.o mem_64.o string.o obj-$(CONFIG_QUICC_ENGINE) += rheap.o obj-$(CONFIG_XMON) += sstep.o diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile index bf20fa688809..20629ae95c50 100644 --- a/arch/powerpc/mm/Makefile +++ b/arch/powerpc/mm/Makefile @@ -6,13 +6,16 @@ ifeq ($(CONFIG_PPC64),y) EXTRA_CFLAGS += -mno-minimal-toc endif -obj-y := fault.o mem.o lmb.o -obj-$(CONFIG_PPC32) += init_32.o pgtable_32.o mmu_context_32.o +obj-y := fault.o mem.o lmb.o \ + init_$(CONFIG_WORD_SIZE).o \ + pgtable_$(CONFIG_WORD_SIZE).o \ + mmu_context_$(CONFIG_WORD_SIZE).o hash-$(CONFIG_PPC_NATIVE) := hash_native_64.o -obj-$(CONFIG_PPC64) += init_64.o pgtable_64.o mmu_context_64.o \ - hash_utils_64.o hash_low_64.o tlb_64.o \ +obj-$(CONFIG_PPC64) += hash_utils_64.o \ slb_low.o slb.o stab.o mmap.o $(hash-y) -obj-$(CONFIG_PPC_STD_MMU_32) += ppc_mmu_32.o hash_low_32.o tlb_32.o +obj-$(CONFIG_PPC_STD_MMU_32) += ppc_mmu_32.o +obj-$(CONFIG_PPC_STD_MMU) += hash_low_$(CONFIG_WORD_SIZE).o \ + tlb_$(CONFIG_WORD_SIZE).o obj-$(CONFIG_40x) += 40x_mmu.o obj-$(CONFIG_44x) += 44x_mmu.o obj-$(CONFIG_FSL_BOOKE) += fsl_booke_mmu.o diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig index c1b34eb383cf..c2087f645ad3 100644 --- a/arch/ppc/Kconfig +++ b/arch/ppc/Kconfig @@ -4,6 +4,10 @@ mainmenu "Linux/PowerPC Kernel Configuration" +config WORD_SIZE + int + default 32 + config MMU bool default y