diff options
Diffstat (limited to 'arch/arc/Kconfig')
| -rw-r--r-- | arch/arc/Kconfig | 72 |
1 files changed, 27 insertions, 45 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 6dd783557330..c781e45d1d99 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -11,14 +11,14 @@ config ARC select ARC_TIMERS select ARCH_HAS_DMA_COHERENT_TO_PFN select ARCH_HAS_PTE_SPECIAL + select ARCH_HAS_SETUP_DMA_OPS select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYNC_DMA_FOR_DEVICE - select ARCH_HAS_SG_CHAIN select ARCH_SUPPORTS_ATOMIC_RMW if ARC_HAS_LLSC + select ARCH_32BIT_OFF_T select BUILDTIME_EXTABLE_SORT select CLONE_BACKWARDS select COMMON_CLK - select DMA_DIRECT_OPS select GENERIC_ATOMIC64 if !ISA_ARCV2 || !(ARC_HAS_LL64 && ARC_HAS_LLSC) select GENERIC_CLOCKEVENTS select GENERIC_FIND_FIRST_BIT @@ -26,12 +26,12 @@ config ARC select GENERIC_IRQ_SHOW select GENERIC_PCI_IOMAP select GENERIC_PENDING_IRQ if SMP + select GENERIC_SCHED_CLOCK select GENERIC_SMP_IDLE_THREAD select HAVE_ARCH_KGDB select HAVE_ARCH_TRACEHOOK select HAVE_DEBUG_STACKOVERFLOW select HAVE_FUTEX_CMPXCHG if FUTEX - select HAVE_GENERIC_DMA_COHERENT select HAVE_IOREMAP_PROT select HAVE_KERNEL_GZIP select HAVE_KERNEL_LZMA @@ -45,15 +45,12 @@ config ARC select MODULES_USE_ELF_RELA select OF select OF_EARLY_FLATTREE - select OF_RESERVED_MEM + select PCI_SYSCALL if PCI select PERF_USE_VMALLOC if ARC_CACHE_VIPT_ALIASING config ARCH_HAS_CACHE_LINE_SIZE def_bool y -config MIGHT_HAVE_PCI - bool - config TRACE_IRQFLAGS_SUPPORT def_bool y @@ -147,11 +144,11 @@ config ARC_CPU_770 Support for ARC770 core introduced with Rel 4.10 (Summer 2011) This core has a bunch of cool new features: -MMU-v3: Variable Page Sz (4k, 8k, 16k), bigger J-TLB (128x4) - Shared Address Spaces (for sharing TLB entries in MMU) + Shared Address Spaces (for sharing TLB entries in MMU) -Caches: New Prog Model, Region Flush -Insns: endian swap, load-locked/store-conditional, time-stamp-ctr -endif #ISA_ARCOMPACT +endif #ISA_ARCOMPACT config ARC_CPU_HS bool "ARC-HS" @@ -194,7 +191,6 @@ config NR_CPUS config ARC_SMP_HALT_ON_RESET bool "Enable Halt-on-reset boot mode" - default y if ARC_UBOOT_SUPPORT help In SMP configuration cores can be configured as Halt-on-reset or they could all start at same time. For Halt-on-reset, non @@ -202,7 +198,7 @@ config ARC_SMP_HALT_ON_RESET at designated entry point. For other case, all jump to common entry point and spin wait for Master's signal. -endif #SMP +endif #SMP config ARC_MCIP bool "ARConnect Multicore IP (MCIP) Support " @@ -253,7 +249,7 @@ config ARC_CACHE_VIPT_ALIASING bool "Support VIPT Aliasing D$" depends on ARC_HAS_DCACHE && ISA_ARCOMPACT -endif #ARC_CACHE +endif #ARC_CACHE config ARC_HAS_ICCM bool "Use ICCM" @@ -374,7 +370,7 @@ config ARC_FPU_SAVE_RESTORE based on actual usage of FPU by a task. Thus our implemn does this for all tasks in system. -endif #ISA_ARCOMPACT +endif #ISA_ARCOMPACT config ARC_CANT_LLSC def_bool n @@ -390,6 +386,15 @@ config ARC_HAS_SWAPE if ISA_ARCV2 +config ARC_USE_UNALIGNED_MEM_ACCESS + bool "Enable unaligned access in HW" + default y + select HAVE_EFFICIENT_UNALIGNED_ACCESS + help + The ARC HS architecture supports unaligned memory access + which is disabled by default. Enable unaligned access in + hardware and use software to use it + config ARC_HAS_LL64 bool "Insn: 64bit LDD/STD" help @@ -410,7 +415,15 @@ config ARC_HAS_ACCL_REGS (also referred to as r58:r59). These can also be used by gcc as GPR so kernel needs to save/restore per process -endif # ISA_ARCV2 +config ARC_IRQ_NO_AUTOSAVE + bool "Disable hardware autosave regfile on interrupts" + default n + help + On HS cores, taken interrupt auto saves the regfile on stack. + This is programmable and can be optionally disabled in which case + software INTERRUPT_PROLOGUE/EPILGUE do the needed work + +endif # ISA_ARCV2 endmenu # "ARC CPU Configuration" @@ -518,17 +531,6 @@ config ARC_DBG_TLB_PARANOIA endif -config ARC_UBOOT_SUPPORT - bool "Support uboot arg Handling" - help - ARC Linux by default checks for uboot provided args as pointers to - external cmdline or DTB. This however breaks in absence of uboot, - when booting from Metaware debugger directly, as the registers are - not zeroed out on reset by mdb and/or ARCv2 based cores. The bogus - registers look like uboot args to kernel which then chokes. - So only enable the uboot arg checking/processing if users are sure - of uboot being in play. - config ARC_BUILTIN_DTB_NAME string "Built in DTB" help @@ -542,24 +544,4 @@ config FORCE_MAX_ZONEORDER default "12" if ARC_HUGEPAGE_16M default "11" -menu "Bus Support" - -config PCI - bool "PCI support" if MIGHT_HAVE_PCI - help - PCI is the name of a bus system, i.e., the way the CPU talks to - the other stuff inside your box. Find out if your board/platform - has PCI. - - Note: PCIe support for Synopsys Device will be available only - when HAPS DX is configured with PCIe RC bitmap. If you have PCI, - say Y, otherwise N. - -config PCI_SYSCALL - def_bool PCI - -source "drivers/pci/Kconfig" - -endmenu - source "kernel/power/Kconfig" |