diff options
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/Kconfig | 47 | ||||
| -rw-r--r-- | arch/arm/mm/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mm/mmap.c | 2 |
3 files changed, 32 insertions, 18 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 9d30c6f804b9..559e9330bb18 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -402,16 +402,18 @@ config CPU_V6 select CPU_TLB_V6 if MMU # ARMv6k -config CPU_32v6K - bool "Support ARM V6K processor extensions" if !SMP - depends on CPU_V6 || CPU_V7 - default y if SMP && !(ARCH_MX3 || ARCH_OMAP2) - help - Say Y here if your ARMv6 processor supports the 'K' extension. - This enables the kernel to use some instructions not present - on previous processors, and as such a kernel build with this - enabled will not boot on processors with do not support these - instructions. +config CPU_V6K + bool "Support ARM V6K processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX || ARCH_DOVE + select CPU_32v6 + select CPU_32v6K if !ARCH_OMAP2 + select CPU_ABRT_EV6 + select CPU_PABRT_V6 + select CPU_CACHE_V6 + select CPU_CACHE_VIPT + select CPU_CP15_MMU + select CPU_HAS_ASID if MMU + select CPU_COPY_V6 if MMU + select CPU_TLB_V6 if MMU # ARMv7 config CPU_V7 @@ -453,6 +455,17 @@ config CPU_32v6 bool select TLS_REG_EMUL if !CPU_32v6K && !MMU +config CPU_32v6K + bool "Support ARM V6K processor extensions" if !SMP + depends on CPU_V6 || CPU_V6K || CPU_V7 + default y if SMP && !(ARCH_MX3 || ARCH_OMAP2) + help + Say Y here if your ARMv6 processor supports the 'K' extension. + This enables the kernel to use some instructions not present + on previous processors, and as such a kernel build with this + enabled will not boot on processors with do not support these + instructions. + config CPU_32v7 bool @@ -623,7 +636,7 @@ comment "Processor Features" config ARM_THUMB bool "Support Thumb user binaries" - depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_V6 || CPU_V7 || CPU_FEROCEON + depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_V6 || CPU_V6K || CPU_V7 || CPU_FEROCEON default y help Say Y if you want to include kernel support for running user space @@ -681,7 +694,7 @@ config CPU_BIG_ENDIAN config CPU_ENDIAN_BE8 bool depends on CPU_BIG_ENDIAN - default CPU_V6 || CPU_V7 + default CPU_V6 || CPU_V6K || CPU_V7 help Support for the BE-8 (big-endian) mode on ARMv6 and ARMv7 processors. @@ -747,7 +760,7 @@ config CPU_CACHE_ROUND_ROBIN config CPU_BPREDICT_DISABLE bool "Disable branch prediction" - depends on CPU_ARM1020 || CPU_V6 || CPU_MOHAWK || CPU_XSC3 || CPU_V7 || CPU_FA526 + depends on CPU_ARM1020 || CPU_V6 || CPU_V6K || CPU_MOHAWK || CPU_XSC3 || CPU_V7 || CPU_FA526 help Say Y here to disable branch prediction. If unsure, say N. @@ -767,7 +780,7 @@ config NEEDS_SYSCALL_FOR_CMPXCHG config DMA_CACHE_RWFO bool "Enable read/write for ownership DMA cache maintenance" - depends on CPU_V6 && SMP + depends on (CPU_V6 || CPU_V6K) && SMP default y help The Snoop Control Unit on ARM11MPCore does not detect the @@ -823,7 +836,7 @@ config CACHE_L2X0 config CACHE_PL310 bool depends on CACHE_L2X0 - default y if CPU_V7 && !CPU_V6 + default y if CPU_V7 && !(CPU_V6 || CPU_V6K) help This option enables optimisations for the PL310 cache controller. @@ -851,10 +864,10 @@ config ARM_L1_CACHE_SHIFT default 5 config ARM_DMA_MEM_BUFFERABLE - bool "Use non-cacheable memory for DMA" if CPU_V6 && !CPU_V7 + bool "Use non-cacheable memory for DMA" if (CPU_V6 || CPU_V6K) && !CPU_V7 depends on !(MACH_REALVIEW_PB1176 || REALVIEW_EB_ARM11MP || \ MACH_REALVIEW_PB11MP) - default y if CPU_V6 || CPU_V7 + default y if CPU_V6 || CPU_V6K || CPU_V7 help Historically, the kernel has used strongly ordered mappings to provide DMA coherent memory. With the advent of ARMv7, mapping diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile index 00d74a04af3a..bca7e61928c7 100644 --- a/arch/arm/mm/Makefile +++ b/arch/arm/mm/Makefile @@ -90,6 +90,7 @@ obj-$(CONFIG_CPU_XSC3) += proc-xsc3.o obj-$(CONFIG_CPU_MOHAWK) += proc-mohawk.o obj-$(CONFIG_CPU_FEROCEON) += proc-feroceon.o obj-$(CONFIG_CPU_V6) += proc-v6.o +obj-$(CONFIG_CPU_V6K) += proc-v6.o obj-$(CONFIG_CPU_V7) += proc-v7.o AFLAGS_proc-v6.o :=-Wa,-march=armv6 diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c index b0a98305055c..afe209e1e1f8 100644 --- a/arch/arm/mm/mmap.c +++ b/arch/arm/mm/mmap.c @@ -31,7 +31,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, struct mm_struct *mm = current->mm; struct vm_area_struct *vma; unsigned long start_addr; -#ifdef CONFIG_CPU_V6 +#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) unsigned int cache_type; int do_align = 0, aliasing = 0; |