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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-11-03 21:02:39 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-11-03 21:02:39 +0000 |
| commit | 5f8b1178e246422ebddc1b16487314c91edf85fe (patch) | |
| tree | 67b0b09acc80bfc1ca81f92cdad45ca156706bea | |
| parent | 24bcc2f46cf8982dbc02c8e3037dfc5e12f1e35c (diff) | |
| parent | 7e5e6e9a509c4ed2973a345ec7ffb96577f42e26 (diff) | |
[ARM] Merge SMP tree
| -rw-r--r-- | arch/arm/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/lib/bitops.h | 2 | ||||
| -rw-r--r-- | arch/arm/mm/Kconfig | 12 | ||||
| -rw-r--r-- | include/asm-arm/mmu_context.h | 3 |
4 files changed, 16 insertions, 2 deletions
diff --git a/arch/arm/Makefile b/arch/arm/Makefile index d80749ae2a7..c422759438d 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -38,6 +38,7 @@ comma = , # macro, but instead defines a whole series of macros which makes # testing for a specific architecture or later rather impossible. arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) +arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4) arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 diff --git a/arch/arm/lib/bitops.h b/arch/arm/lib/bitops.h index 64a988c1ad4..f35d91fbe11 100644 --- a/arch/arm/lib/bitops.h +++ b/arch/arm/lib/bitops.h @@ -1,6 +1,6 @@ #include <linux/config.h> -#if __LINUX_ARM_ARCH__ >= 6 && defined(CONFIG_CPU_MPCORE) +#if __LINUX_ARM_ARCH__ >= 6 && defined(CONFIG_CPU_32v6K) .macro bitop, instr mov r2, #1 and r3, r0, #7 @ Get bit offset diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 5568403e984..e3c14d6b432 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -250,6 +250,18 @@ config CPU_V6 select CPU_COPY_V6 select CPU_TLB_V6 +# ARMv6k +config CPU_32v6K + bool "Support ARM V6K processor extensions" if !SMP + depends on CPU_V6 + default y if SMP + 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. + # Figure out what processor architecture version we should be using. # This defines the compiler instruction set which depends on the machine type. config CPU_32v3 diff --git a/include/asm-arm/mmu_context.h b/include/asm-arm/mmu_context.h index 4af9c411c61..57b8def83d4 100644 --- a/include/asm-arm/mmu_context.h +++ b/include/asm-arm/mmu_context.h @@ -86,7 +86,8 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next, cpu_set(cpu, next->cpu_vm_mask); check_context(next); cpu_switch_mm(next->pgd, next); - cpu_clear(cpu, prev->cpu_vm_mask); + if (cache_is_vivt()) + cpu_clear(cpu, prev->cpu_vm_mask); } } |