--- 0681707cbca2b59e2bd321ee35c33b745c17968a +++ 47e775dae235da09714150945ebedbe3a6bdfc8f @@ -18,6 +18,9 @@ config ARM select HAVE_KRETPROBES if (HAVE_KPROBES) select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) select HAVE_GENERIC_DMA_COHERENT + select HAVE_KERNEL_GZIP + select HAVE_KERNEL_LZO + select HAVE_KERNEL_LZMA help The ARM series is a line of low-power-consumption RISC chip designs licensed by ARM Ltd and targeted at embedded applications and @@ -115,10 +118,9 @@ config GENERIC_LOCKBREAK config RWSEM_GENERIC_SPINLOCK bool - default y config RWSEM_XCHGADD_ALGORITHM - bool + def_bool y config ARCH_HAS_ILOG2_U32 bool @@ -890,6 +892,18 @@ config ARM_ERRATA_460075 ACTLR register. Note that setting specific bits in the ACTLR register may not be available in non-secure mode. +config ARM_ERRATA_720789 + bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID" + depends on CPU_V7 && SMP + help + This option enables the workaround for the 720789 Cortex-A9 (prior to + r2p0) erratum. A faulty ASID can be sent to the other CPUs for the + broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS. + As a consequence of this erratum, some TLB entries which should be + invalidated are not, resulting in an incoherency in the system page + tables. The workaround changes the TLB flushing routines to invalidate + entries regardless of the ASID. + endmenu source "arch/arm/common/Kconfig"