mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-10-31 18:09:19 +00:00
ace72d708f
[ Upstream commit 5c2a625937ba49bc691089370638223d310cda9a ] As is the case for a number of other architectures that have a 32-bit compat mode, enable KEYS_COMPAT if both COMPAT and KEYS are enabled. This allows AArch32 programs to use the keyctl() system call when running on an AArch64 kernel. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
1028 lines
28 KiB
Text
1028 lines
28 KiB
Text
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config ARM64
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def_bool y
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select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
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select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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select ARCH_SUPPORTS_ATOMIC_RMW
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select ARCH_USE_CMPXCHG_LOCKREF
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select ARCH_WANT_OPTIONAL_GPIOLIB
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select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
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select ARCH_WANT_FRAME_POINTERS
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select ARM64_CPU_SUSPEND
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select ARM_AMBA
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select ARM_ARCH_TIMER
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select ARM_GIC
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select BUILDTIME_EXTABLE_SORT
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select AUDIT_ARCH_COMPAT_GENERIC
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select CLONE_BACKWARDS
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select COMMON_CLK if !ARCH_MSM
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select CPU_PM if (SUSPEND || CPU_IDLE)
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select DCACHE_WORD_ACCESS
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select EDAC_SUPPORT
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select GENERIC_CLOCKEVENTS
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select GENERIC_CLOCKEVENTS_BROADCAST if SMP
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select GENERIC_CPU_AUTOPROBE
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select GENERIC_EARLY_IOREMAP
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select GENERIC_IOMAP
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select GENERIC_IRQ_PROBE
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select GENERIC_IRQ_SHOW
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select GENERIC_SCHED_CLOCK
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select GENERIC_SMP_IDLE_THREAD
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select GENERIC_STRNCPY_FROM_USER
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select GENERIC_STRNLEN_USER
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select GENERIC_TIME_VSYSCALL
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select HARDIRQS_SW_RESEND
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select HAVE_ARCH_JUMP_LABEL
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select HAVE_ARCH_KGDB
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select HAVE_ARCH_MMAP_RND_BITS
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select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT
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select HAVE_ARCH_SECCOMP_FILTER
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select HAVE_ARCH_AUDITSYSCALL
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select HAVE_ARCH_TRACEHOOK
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select HAVE_C_RECORDMCOUNT
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select HAVE_CC_STACKPROTECTOR
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select HAVE_DEBUG_BUGVERBOSE
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select HAVE_DEBUG_KMEMLEAK
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select HAVE_DMA_API_DEBUG
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select HAVE_DMA_ATTRS
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select HAVE_DMA_CONTIGUOUS
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select HAVE_DYNAMIC_FTRACE
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select HAVE_EFFICIENT_UNALIGNED_ACCESS
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select HAVE_FTRACE_MCOUNT_RECORD
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select HAVE_FUNCTION_TRACER
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select HAVE_FUNCTION_GRAPH_TRACER
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select HAVE_GENERIC_DMA_COHERENT
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select HAVE_IRQ_TIME_ACCOUNTING
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select HAVE_MEMBLOCK
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select HAVE_PATA_PLATFORM
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select HAVE_PERF_EVENTS
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select HAVE_SYSCALL_TRACEPOINTS
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select HAVE_PERF_REGS
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select HAVE_PERF_USER_STACK_DUMP
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select IRQ_DOMAIN
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select MODULES_USE_ELF_RELA
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select NO_BOOTMEM
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select OF
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select OF_EARLY_FLATTREE
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select OF_RESERVED_MEM
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select PERF_USE_VMALLOC
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select POWER_RESET
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select POWER_SUPPLY
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select RTC_LIB
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select SPARSE_IRQ
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select SYSCTL_EXCEPTION_TRACE
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select MSM_JTAGV8 if CORESIGHT_ETMV4
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help
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ARM 64-bit (AArch64) Linux support.
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config 64BIT
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def_bool y
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config ARCH_PHYS_ADDR_T_64BIT
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def_bool y
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config MMU
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def_bool y
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config NO_IOPORT_MAP
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def_bool y
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config ARCH_MMAP_RND_BITS_MIN
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default 14 if ARM64_64K_PAGES
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default 18
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# max bits determined by the following formula:
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# VA_BITS - PAGE_SHIFT - 3
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# VA_BITS is always 39
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config ARCH_MMAP_RND_BITS_MAX
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default 20 if ARM64_64K_PAGES
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default 24
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config ARCH_MMAP_RND_COMPAT_BITS_MIN
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default 11
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config ARCH_MMAP_RND_COMPAT_BITS_MAX
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default 16
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config ILLEGAL_POINTER_VALUE
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hex
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default 0xdead000000000000
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config STACKTRACE_SUPPORT
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def_bool y
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config ILLEGAL_POINTER_VALUE
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hex
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default 0xdead000000000000
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config LOCKDEP_SUPPORT
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def_bool y
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config TRACE_IRQFLAGS_SUPPORT
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def_bool y
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config RWSEM_XCHGADD_ALGORITHM
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def_bool y
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config GENERIC_BUG
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def_bool y
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depends on BUG
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config GENERIC_HWEIGHT
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def_bool y
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config GENERIC_CSUM
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def_bool y
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config GENERIC_CALIBRATE_DELAY
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def_bool y
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config ZONE_DMA
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def_bool y
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config ARCH_DMA_ADDR_T_64BIT
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def_bool y
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config NEED_DMA_MAP_STATE
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def_bool y
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config NEED_SG_DMA_LENGTH
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def_bool y
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config ARM64_DMA_USE_IOMMU
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bool
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select ARM_HAS_SG_CHAIN
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select NEED_SG_DMA_LENGTH
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if ARM64_DMA_USE_IOMMU
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config ARM64_DMA_IOMMU_ALIGNMENT
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int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
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range 4 9
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default 8
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help
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DMA mapping framework by default aligns all buffers to the smallest
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PAGE_SIZE order which is greater than or equal to the requested buffer
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size. This works well for buffers up to a few hundreds kilobytes, but
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for larger buffers it just a waste of address space. Drivers which has
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relatively small addressing window (like 64Mib) might run out of
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virtual space with just a few allocations.
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With this parameter you can specify the maximum PAGE_SIZE order for
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DMA IOMMU buffers. Larger buffers will be aligned only to this
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specified order. The order is expressed as a power of two multiplied
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by the PAGE_SIZE.
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endif
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config SWIOTLB
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def_bool y
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config IOMMU_HELPER
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def_bool SWIOTLB
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config KERNEL_MODE_NEON
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def_bool y
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config ARCH_HAS_CPUFREQ
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bool
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help
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Internal node to signify that the ARCH has CPUFREQ support
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and that the relevant menu configurations are displayed for
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it.
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config FIX_EARLYCON_MEM
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def_bool y
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source "init/Kconfig"
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source "kernel/Kconfig.freezer"
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menu "Platform selection"
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config ARCH_VEXPRESS
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bool "ARMv8 software model (Versatile Express)"
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select ARCH_REQUIRE_GPIOLIB
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select COMMON_CLK_VERSATILE
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select POWER_RESET_VEXPRESS
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select VEXPRESS_CONFIG
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help
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This enables support for the ARMv8 software model (Versatile
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Express).
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config ARCH_MSM
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bool "Qualcomm Platforms"
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select ARCH_REQUIRE_GPIOLIB
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select CLKDEV_LOOKUP
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select HAVE_CLK
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select HAVE_CLK_PREPARE
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select MSM_IRQ
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select PINCTRL
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select SOC_BUS
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select PCI
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select ARCH_HAS_CPUFREQ
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select CPU_FREQ_MSM
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select PM_OPP
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select PM_DEVFREQ
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select MSM_DEVFREQ_DEVBW
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select MSM_BIMC_BWMON
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select MSMCCI_HWMON
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select DEVFREQ_GOV_MSM_BW_HWMON
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select DEVFREQ_GOV_MSM_CACHE_HWMON
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select DEVFREQ_SIMPLE_DEV
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help
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This enables support for the ARMv8 based Qualcomm chipsets.
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config ARCH_MSM8916
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bool "Enable Support for Qualcomm MSM8916"
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depends on ARCH_MSM
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select RCU_BOOST if DEBUG_KMEMLEAK
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help
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This enables support for the MSM8916 chipset. If you dont
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know what do here, say N
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config ARCH_MSM8994
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bool "Enable Support for Qualcomm MSM8994"
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depends on ARCH_MSM
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help
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This enables support for the MSM8994 chipset. If you dont
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know what do here, say N
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config ARCH_MSM8994_V1_TLBI_WA
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bool "Enable MSM8994 v1 TLBI workaround"
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depends on ARCH_MSM8994
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help
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This enables support for the MSM8994 v1 TLBI workaround. This
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workaround is required for MSM8994 V1 revision where the
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[39:38] bits of VA are tied to zero and due to which TLBI
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operations with VA or ASID will not work.
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config MSM8994_V1_PMUIRQ_WA
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bool "Enable MSM8994 v1 PMU-CTI IRQ workaround"
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depends on ARCH_MSM8994 && CORESIGHT_CTI
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help
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This enables support for the MSM8994 v1 PMU-CTI IRQ workaround.
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This workaround is required for MSM8994 V1 revision where the
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percpu PMU interrupt is incorrectly connected to the corresponding
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CPUs in the other cluster.
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config ARCH_MSM8992
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bool "Enable Support for Qualcomm MSM8992"
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depends on ARCH_MSM
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help
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Enable kernel support for the MSM8992 chipset. If you don't
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know what this is, you can safely say 'N' here.
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config ARCH_MSM8976
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bool "MSM8976"
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depends on ARCH_MSM8916
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help
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The SAMSUNG intend to divide MSM8916 & MSM8976 KERNEL feature to cover many
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products using these ARCH_8916/8976 series chipset unlike QC SRC government.
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config ARCH_XGENE
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bool "AppliedMicro X-Gene SOC Family"
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help
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This enables support for AppliedMicro X-Gene SOC Family
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config SEC_FACTORY
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bool "when it comes to sec factory mode"
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default n
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help
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It will support a sec factory mode.
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config SEC_MSM8976LTE_PROJECT
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bool "Samsung MSM8976 Project"
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depends on ARCH_MSM8916
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default n
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help
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Support for Samsung MSM8976 Project
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config MACH_MSM8976LTE_EUR_OPEN
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bool "Samsung MSM8976LTE EUR OPEN"
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depends on SEC_MSM8976LTE_PROJECT
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default n
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help
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Support for Samsung MSM8976LTE EUR OPEN device.
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config SEC_MSM8976FHDLTE_PROJECT
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bool "Samsung MSM8976 FHDLTE Project"
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depends on ARCH_MSM8916
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default n
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help
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Support for Samsung MSM8976 FHDLTE Project
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config MACH_MSM8976FHDLTE_EUR_OPEN
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bool "Samsung MSM8976FHDLTE EUR OPEN"
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depends on SEC_MSM8976FHDLTE_PROJECT
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default n
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help
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Support for Samsung MSM8976FHDLTE EUR OPEN device.
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config SEC_A9XLTE_PROJECT
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bool "Samsung A9XLTE Project"
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depends on ARCH_MSM8976
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default n
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help
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Support for Samsung A9XLTE Project
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config MACH_A9XLTE_CHN_OPEN
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bool "Samsung A9XLTE CHN OPEN"
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depends on SEC_A9XLTE_PROJECT
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default n
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help
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Support for Samsung A9XLTE CHN OPEN device.
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config SEC_A9XPROLTE_PROJECT
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bool "Samsung A9XPROLTE Project"
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depends on ARCH_MSM8976
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default n
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help
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Support for Samsung A9XPROLTE Project
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config MACH_A9XPROLTE_CHN_OPEN
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bool "Samsung A9XPROLTE CHN OPEN"
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depends on SEC_A9XPROLTE_PROJECT
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default n
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help
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Support for Samsung A9XPROLTE CHN OPEN device.
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config MACH_A9XPROLTE_SEA_OPEN
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bool "Samsung A9XPROLTE SEA OPEN"
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depends on SEC_A9XPROLTE_PROJECT
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default n
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help
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Support for Samsung A9XPROLTE SEA OPEN device.
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config SEC_C9LTE_PROJECT
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bool "Samsung C9LTE Project"
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depends on ARCH_MSM8976
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default n
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help
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Support for Samsung C9LTE Project
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config MACH_C9LTE_CHN_OPEN
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bool "Samsung C9LTE CHN OPEN"
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depends on SEC_C9LTE_PROJECT
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default n
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help
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Support for Samsung C9LTE CHN OPEN device.
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config PROJECT_GTS28VE
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bool "Samsung GTS28VE Project"
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depends on ARCH_MSM8976
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default n
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help
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Support for Samsung GTS28VE Project
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config SEC_GTS28VELTE_PROJECT
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bool "Samsung GTS28VELTE Project"
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depends on PROJECT_GTS28VE
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default n
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help
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Support for Samsung GTS28VELTE Project
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config MACH_GTS28VELTE_EUR_OPEN
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bool "Samsung GTS28VELTE EUR OPEN"
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depends on SEC_GTS28VELTE_PROJECT
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default n
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help
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Support for Samsung GTS28VELTE EUR OPEN device.
|
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config MACH_GTS28VELTE_CHN_OPEN
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bool "Samsung GTS28VELTE CHN OPEN"
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depends on SEC_GTS28VELTE_PROJECT
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default n
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help
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Support for Samsung GTS28VELTE CHN OPEN device.
|
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config PROJECT_GTS210VE
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bool "Samsung GTS210VE Project"
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depends on ARCH_MSM8976
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default n
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help
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Support for Samsung GTS210VE Project
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|
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config SEC_GTS210VELTE_PROJECT
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bool "Samsung GTS210VELTE Project"
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depends on PROJECT_GTS210VE
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default n
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help
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Support for Samsung GTS210VELTE Project
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|
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config MACH_GTS210VELTE_EUR_OPEN
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bool "Samsung GTS210VELTE EUR OPEN"
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depends on SEC_GTS210VELTE_PROJECT
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default n
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help
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Support for Samsung GTS210VELTE EUR OPEN device.
|
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config MACH_GTS210VELTE_USA_VZW
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bool "Samsung GTS210VELTE USA VZW"
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depends on SEC_GTS210VELTE_PROJECT
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default n
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help
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Support for Samsung GTS210VELTE USA VZW device.
|
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config MACH_GTS210VELTE_SEA_OPEN
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bool "Samsung GTS210VELTE SEA OPEN"
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depends on SEC_GTS210VELTE_PROJECT
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default n
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help
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Support for Samsung GTS210VELTE SEA OPEN device.
|
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|
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config MACH_GTS210VELTE_USA_TMO
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bool "Samsung GTS210VELTE USA TMO"
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depends on SEC_GTS210VELTE_PROJECT
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default n
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help
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Support for Samsung GTS210VELTE USA TMO device.
|
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|
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config MACH_GTS210VELTE_CAN_OPEN
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bool "Samsung GTS210VELTE CAN OPEN"
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depends on SEC_GTS210VELTE_PROJECT
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default n
|
|
help
|
|
Support for Samsung GTS210VELTE CAN OPEN device.
|
|
|
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config MACH_GTS210VELTE_USA_ATT
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bool "Samsung GTS210VELTE USA ATT"
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depends on SEC_GTS210VELTE_PROJECT
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default n
|
|
help
|
|
Support for Samsung GTS210VELTE USA ATT device.
|
|
|
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config SEC_GTS28VEWIFI_PROJECT
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bool "Samsung GTS28VEWIFI Project"
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depends on PROJECT_GTS28VE
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default n
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|
help
|
|
Support for Samsung GTS28VEWIFI Project
|
|
|
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config MACH_GTS28VEWIFI_EUR_OPEN
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bool "Samsung GTS28VEWIFI EUR OPEN"
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depends on SEC_GTS28VEWIFI_PROJECT
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default n
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help
|
|
Support for Samsung GTS28VEWIFI EUR OPEN device.
|
|
|
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config SEC_GTS210VEWIFI_PROJECT
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bool "Samsung GTS210VEWIFI Project"
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depends on PROJECT_GTS210VE
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default n
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|
help
|
|
Support for Samsung GTS210VEWIFI Project
|
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|
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config MACH_GTS210VEWIFI_EUR_OPEN
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bool "Samsung GTS210VEWIFI EUR OPEN"
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|
depends on SEC_GTS210VEWIFI_PROJECT
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default n
|
|
help
|
|
Support for Samsung GTS210VEWIFI EUR OPEN device
|
|
|
|
config SAMSUNG_PRODUCT_SHIP
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bool "set up for product shipping"
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default n
|
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|
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endmenu
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|
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menu "Bus support"
|
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|
|
config ARM_AMBA
|
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bool
|
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|
|
config PCI
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bool "PCI support"
|
|
help
|
|
Find out whether you have a PCI motherboard. PCI is the name of a
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bus system, i.e. the way the CPU talks to the other stuff inside
|
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your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
|
|
VESA. If you have PCI, say Y, otherwise N.
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|
|
config PCI_DOMAINS
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|
bool
|
|
depends on PCI
|
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|
|
config PCI_SYSCALL
|
|
def_bool PCI
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|
|
source "drivers/pci/Kconfig"
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source "drivers/pci/pcie/Kconfig"
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endmenu
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|
|
menu "Kernel Features"
|
|
|
|
config ARM64_DCACHE_DISABLE
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|
bool "Disable CPU Data Caches"
|
|
help
|
|
Disable CPU data cache usage by setting the SCTLR[C] bit during
|
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kernel initialization. This will result in a considerable
|
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performance impact, but may be useful in certain situations.
|
|
|
|
If you are not sure what to do, select 'N' here.
|
|
|
|
config ARM64_ICACHE_DISABLE
|
|
bool "Disable CPU Instruction Caches"
|
|
help
|
|
Disable CPU instruction cache usage by setting the SCTLR[I]
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bit during kernel initialization. This will result in a
|
|
considerable performance impact, but may be useful in certain
|
|
situations.
|
|
|
|
If you are not sure what to do, select 'N' here.
|
|
|
|
config ARM64_64K_PAGES
|
|
bool "Enable 64KB pages support"
|
|
help
|
|
This feature enables 64KB pages support (4KB by default)
|
|
allowing only two levels of page tables and faster TLB
|
|
look-up. AArch32 emulation is not available when this feature
|
|
is enabled.
|
|
|
|
config CPU_BIG_ENDIAN
|
|
bool "Build big-endian kernel"
|
|
help
|
|
Say Y if you plan on running a kernel in big-endian mode.
|
|
|
|
config ARM64_ERRATUM_845719
|
|
bool "Cortex-A53: 845719: a load might read incorrect data"
|
|
depends on COMPAT
|
|
default y
|
|
help
|
|
This option adds an alternative code sequence to work around ARM
|
|
erratum 845719 on Cortex-A53 parts up to r0p4.
|
|
|
|
When running a compat (AArch32) userspace on an affected Cortex-A53
|
|
part, a load at EL0 from a virtual address that matches the bottom 32
|
|
bits of the virtual address used by a recent load at (AArch64) EL1
|
|
might return incorrect data.
|
|
|
|
The workaround is to write the contextidr_el1 register on exception
|
|
return to a 32-bit task.
|
|
Please note that this does not necessarily enable the workaround,
|
|
as it depends on the alternative framework, which will only patch
|
|
the kernel if an affected CPU is detected.
|
|
|
|
If unsure, say Y.
|
|
|
|
config ARM64_A57_ERRATA_832075
|
|
bool "ARMv8 A57 Errata 832075"
|
|
help
|
|
This Erratum explains the problem that a Cortex-A57 might deadlock
|
|
when WB exclusive load/store instructions are mixed with device loads.
|
|
An interrupt will break the deadlock.
|
|
This erratum requires a particular sequence of the code:
|
|
a) A pair of exclusive load and exclusive store instructions.
|
|
The exclusive store is to write-back memory location.
|
|
b) A branch instruction has a source register which is the same as
|
|
the destination register of the older exclusive store.
|
|
c) Following the branch instruction, there are six or more loads
|
|
to device memory locations
|
|
|
|
config ARM64_SEV_IN_LOCK_UNLOCK
|
|
bool "Add explicit SEV in the spinlock unlock code path"
|
|
def_bool ARCH_MSM8994
|
|
help
|
|
In certain unexplained cases, the stlr alone might not wakeup
|
|
the processor waiting in WFE on a spinlock.
|
|
Add an explicity dsb and SEV in write_unlock, read_unlock
|
|
and spin_unlock to ensure that the core waiting on the lock
|
|
wakes up from WFE.
|
|
|
|
config ARM64_STLR_NEEDS_BARRIER
|
|
bool "Store-Release operations require explicit barriers"
|
|
def_bool ARCH_MSMTHULIUM
|
|
help
|
|
Some early samples of MSMTHULIUM SoCs require that an explicit barrier
|
|
be executed prior to any Store-Release operation (STLR) to comform to
|
|
ARM memory ordering requirements. If you are building the kernel to
|
|
work on one of these early designs, select 'Y' here.
|
|
|
|
For production kernels, you should say 'N' here.
|
|
|
|
config SMP
|
|
bool "Symmetric Multi-Processing"
|
|
help
|
|
This enables support for systems with more than one CPU. If
|
|
you say N here, the kernel will run on single and
|
|
multiprocessor machines, but will use only one CPU of a
|
|
multiprocessor machine. If you say Y here, the kernel will run
|
|
on many, but not all, single processor machines. On a single
|
|
processor machine, the kernel will run faster if you say N
|
|
here.
|
|
|
|
If you don't know what to do here, say N.
|
|
|
|
config SCHED_MC
|
|
bool "Multi-core scheduler support"
|
|
depends on SMP
|
|
help
|
|
Multi-core scheduler support improves the CPU scheduler's decision
|
|
making when dealing with multi-core CPU chips at a cost of slightly
|
|
increased overhead in some places. If unsure say N here.
|
|
|
|
config SCHED_SMT
|
|
bool "SMT scheduler support"
|
|
depends on SMP
|
|
help
|
|
Improves the CPU scheduler's decision making when dealing with
|
|
MultiThreading at a cost of slightly increased overhead in some
|
|
places. If unsure say N here.
|
|
|
|
config ARCH_WANTS_CTXSW_LOGGING
|
|
bool "Enable logging in context switch"
|
|
depends on SMP
|
|
help
|
|
Logs critical context switch latencies. If unsure say N here.
|
|
|
|
config NR_CPUS
|
|
int "Maximum number of CPUs (2-32)"
|
|
range 2 32
|
|
depends on SMP
|
|
# These have to remain sorted largest to smallest
|
|
default "8"
|
|
|
|
config HOTPLUG_CPU
|
|
bool "Support for hot-pluggable CPUs"
|
|
depends on SMP
|
|
help
|
|
Say Y here to experiment with turning CPUs off and on. CPUs
|
|
can be controlled through /sys/devices/system/cpu.
|
|
|
|
source kernel/Kconfig.preempt
|
|
|
|
config SWP_EMULATE
|
|
bool "Emulate SWP/SWPB instructions"
|
|
help
|
|
ARMv6 architecture deprecates use of the SWP/SWPB instructions. ARMv8
|
|
oblosetes the use of SWP/SWPB instructions. ARMv7 multiprocessing
|
|
extensions introduce the ability to disable these instructions,
|
|
triggering an undefined instruction exception when executed. Say Y
|
|
here to enable software emulation of these instructions for userspace
|
|
(not kernel) using LDREX/STREX. Also creates /proc/cpu/swp_emulation
|
|
for statistics.
|
|
|
|
In some older versions of glibc [<=2.8] SWP is used during futex
|
|
trylock() operations with the assumption that the code will not
|
|
be preempted. This invalid assumption may be more likely to fail
|
|
with SWP emulation enabled, leading to deadlock of the user
|
|
application.
|
|
|
|
NOTE: when accessing uncached shared regions, LDREX/STREX rely
|
|
on an external transaction monitoring block called a global
|
|
monitor to maintain update atomicity. If your system does not
|
|
implement a global monitor, this option can cause programs that
|
|
perform SWP operations to uncached memory to deadlock.
|
|
|
|
If unsure, say Y.
|
|
|
|
config HZ
|
|
int
|
|
default 100
|
|
|
|
config ARCH_HAS_HOLES_MEMORYMODEL
|
|
def_bool y if SPARSEMEM
|
|
|
|
config ARCH_SPARSEMEM_ENABLE
|
|
def_bool y
|
|
select SPARSEMEM_VMEMMAP_ENABLE
|
|
|
|
config ARCH_SPARSEMEM_DEFAULT
|
|
def_bool ARCH_SPARSEMEM_ENABLE
|
|
|
|
config ARCH_SELECT_MEMORY_MODEL
|
|
def_bool ARCH_SPARSEMEM_ENABLE
|
|
|
|
config HAVE_ARCH_PFN_VALID
|
|
def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
|
|
|
|
config HW_PERF_EVENTS
|
|
bool "Enable hardware performance counter support for perf events"
|
|
depends on PERF_EVENTS
|
|
default y
|
|
help
|
|
Enable hardware performance counter support for perf events. If
|
|
disabled, perf events will use software events only.
|
|
|
|
config PERF_EVENTS_USERMODE
|
|
bool "Enable usermode access for perf events"
|
|
depends on PERF_EVENTS
|
|
help
|
|
Enable user-mode access to performance counters for perf events.
|
|
If enabled, the access permissions allowing CPU performance
|
|
counters to be accessed from user-mode are set.
|
|
|
|
If you want user-mode programs to access perf events, say Y
|
|
|
|
config PERF_EVENTS_RESET_PMU_DEBUGFS
|
|
bool "Reset PMU via debugfs node"
|
|
depends on PERF_EVENTS
|
|
help
|
|
Enable the debugfs node that can be used to reset PMUs and all
|
|
state variables associated with PMUs. If enabled, PMU and internal
|
|
state variable are cleared.
|
|
If you want to reset PMU and PMU related internal Perf variables
|
|
via debugfs then say Y.
|
|
|
|
config SYS_SUPPORTS_HUGETLBFS
|
|
def_bool y
|
|
|
|
config ARCH_WANT_GENERAL_HUGETLB
|
|
def_bool y
|
|
|
|
config ARCH_WANT_HUGE_PMD_SHARE
|
|
def_bool y if !ARM64_64K_PAGES
|
|
|
|
config HAVE_ARCH_TRANSPARENT_HUGEPAGE
|
|
def_bool y
|
|
|
|
config ARCH_HAS_CACHE_LINE_SIZE
|
|
def_bool y
|
|
|
|
config ARMV7_COMPAT
|
|
bool "Kernel support for ARMv7 applications"
|
|
depends on COMPAT
|
|
select SWP_EMULATE
|
|
help
|
|
This option enables features that allow that ran on an ARMv7 or older
|
|
processor to continue functioning.
|
|
|
|
If you want to execute ARMv7 applications, say Y
|
|
|
|
config ARMV7_COMPAT_CPUINFO
|
|
bool "Report backwards compatible cpu features in /proc/cpuinfo"
|
|
depends on ARMV7_COMPAT
|
|
default y
|
|
help
|
|
This option makes /proc/cpuinfo list CPU features that an ARMv7 or
|
|
earlier kernel would report, but are not optional on an ARMv8 or later
|
|
processor.
|
|
|
|
If you want to execute ARMv7 applications, say Y
|
|
|
|
source "mm/Kconfig"
|
|
source "arch/arm64/mm/Kconfig"
|
|
|
|
config XEN_DOM0
|
|
def_bool y
|
|
depends on XEN
|
|
|
|
config XEN
|
|
bool "Xen guest support on ARM64 (EXPERIMENTAL)"
|
|
depends on ARM64 && OF
|
|
select SWIOTLB_XEN
|
|
help
|
|
Say Y if you want to run Linux in a Virtual Machine on Xen on ARM64.
|
|
|
|
config FORCE_MAX_ZONEORDER
|
|
int
|
|
default "14" if (ARM64_64K_PAGES && TRANSPARENT_HUGEPAGE)
|
|
default "11"
|
|
|
|
config SECCOMP
|
|
bool "Enable seccomp to safely compute untrusted bytecode"
|
|
---help---
|
|
This kernel feature is useful for number crunching applications
|
|
that may need to compute untrusted bytecode during their
|
|
execution. By using pipes or other transports made available to
|
|
the process as file descriptors supporting the read/write
|
|
syscalls, it's possible to isolate those applications in
|
|
their own address space using seccomp. Once seccomp is
|
|
enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
|
|
and the task is only allowed to execute a few safe syscalls
|
|
defined by each seccomp mode.
|
|
|
|
config HARDEN_BRANCH_PREDICTOR
|
|
bool "Harden the branch predictor against aliasing attacks" if EXPERT
|
|
default y
|
|
help
|
|
Speculation attacks against some high-performance processors rely on
|
|
being able to manipulate the branch predictor for a victim context by
|
|
executing aliasing branches in the attacker context. Such attacks
|
|
can be partially mitigated against by clearing internal branch
|
|
predictor state and limiting the prediction logic in some situations.
|
|
|
|
This config option will take CPU-specific actions to harden the
|
|
branch predictor against aliasing attacks and may rely on specific
|
|
instruction sequences or control bits being set by the system
|
|
firmware.
|
|
|
|
If unsure, say Y.
|
|
|
|
endmenu
|
|
|
|
menu "Boot options"
|
|
|
|
config CMDLINE
|
|
string "Default kernel command string"
|
|
default ""
|
|
help
|
|
Provide a set of default command-line options at build time by
|
|
entering them here. As a minimum, you should specify the the
|
|
root device (e.g. root=/dev/nfs).
|
|
|
|
choice
|
|
prompt "Kernel command line type" if CMDLINE != ""
|
|
default CMDLINE_FROM_BOOTLOADER
|
|
|
|
config CMDLINE_FROM_BOOTLOADER
|
|
bool "Use bootloader kernel arguments if available"
|
|
help
|
|
Uses the command-line options passed by the boot loader. If
|
|
the boot loader doesn't provide any, the default kernel command
|
|
string provided in CMDLINE will be used.
|
|
|
|
config CMDLINE_EXTEND
|
|
bool "Extend bootloader kernel arguments"
|
|
help
|
|
The command-line arguments provided by the boot loader will be
|
|
appended to the default kernel command string.
|
|
|
|
config CMDLINE_FORCE
|
|
bool "Always use the default kernel command string"
|
|
help
|
|
Always use the default kernel command string, even if the boot
|
|
loader passes other arguments to the kernel.
|
|
This is useful if you cannot or don't want to change the
|
|
command-line options your boot loader passes to the kernel.
|
|
endchoice
|
|
|
|
config BUILD_ARM64_APPENDED_DTB_IMAGE
|
|
bool "Build a concatenated Image.gz/dtb by default"
|
|
depends on OF
|
|
help
|
|
Enabling this option will cause a concatenated Image.gz and list of
|
|
DTBs to be built by default (instead of a standalone Image.gz.)
|
|
The image will built in arch/arm64/boot/Image.gz-dtb
|
|
|
|
config BUILD_ARM64_APPENDED_DTB_IMAGE_NAMES
|
|
string "Default dtb names"
|
|
depends on BUILD_ARM64_APPENDED_DTB_IMAGE
|
|
help
|
|
Space separated list of names of dtbs to append when
|
|
building a concatenated Image.gz-dtb.
|
|
|
|
config EFI
|
|
bool "UEFI runtime support"
|
|
depends on OF && !CPU_BIG_ENDIAN
|
|
select LIBFDT
|
|
select UCS2_STRING
|
|
select EFI_PARAMS_FROM_FDT
|
|
help
|
|
This option provides support for runtime services provided
|
|
by UEFI firmware (such as non-volatile variables, realtime
|
|
clock, and platform reset). A UEFI stub is also provided to
|
|
allow the kernel to be booted as an EFI application. This
|
|
is only useful on systems that have UEFI firmware.
|
|
|
|
endmenu
|
|
|
|
menu "Userspace binary formats"
|
|
|
|
source "fs/Kconfig.binfmt"
|
|
|
|
config COMPAT
|
|
bool "Kernel support for 32-bit EL0"
|
|
depends on !ARM64_64K_PAGES
|
|
select COMPAT_BINFMT_ELF
|
|
select HAVE_UID16
|
|
select OLD_SIGSUSPEND3
|
|
select COMPAT_OLD_SIGACTION
|
|
help
|
|
This option enables support for a 32-bit EL0 running under a 64-bit
|
|
kernel at EL1. AArch32-specific components such as system calls,
|
|
the user helper functions, VFP support and the ptrace interface are
|
|
handled appropriately by the kernel.
|
|
|
|
If you want to execute 32-bit userspace applications, say Y.
|
|
|
|
config SYSVIPC_COMPAT
|
|
def_bool y
|
|
depends on COMPAT && SYSVIPC
|
|
|
|
config KEYS_COMPAT
|
|
def_bool y
|
|
depends on COMPAT && KEYS
|
|
|
|
endmenu
|
|
|
|
menu "Power management options"
|
|
|
|
source "kernel/power/Kconfig"
|
|
|
|
config ARCH_SUSPEND_POSSIBLE
|
|
def_bool y
|
|
|
|
config ARM64_CPU_SUSPEND
|
|
def_bool PM_SLEEP
|
|
|
|
endmenu
|
|
|
|
menu "CPU Power Management"
|
|
|
|
if ARCH_HAS_CPUFREQ
|
|
source "drivers/cpufreq/Kconfig"
|
|
endif
|
|
|
|
source "drivers/cpuidle/Kconfig"
|
|
|
|
endmenu
|
|
|
|
config TIMA_GET_QSEE_LOGS_USING_RDX
|
|
bool "Enable QSEE Log Extraction using RDX tool"
|
|
default n
|
|
|
|
config TIMA_LKMAUTH
|
|
bool "Enable LKM authentication TIMA feature"
|
|
default n
|
|
help
|
|
TIMA authenticates loaded kernel modules. Disable it if you don't
|
|
want TIMA enabled.
|
|
|
|
config TIMA_LKMAUTH_CODE_PROT
|
|
bool "Support kernel Module"
|
|
depends on MODULES
|
|
default n
|
|
help
|
|
When enabled, this feature will mark all Executable sections in an
|
|
LKM as RO
|
|
|
|
config TIMA_TEST_INFRA
|
|
tristate "Testing infrastructure for TIMA"
|
|
default n
|
|
help
|
|
Kernel bits of the TIMA test infrastructure
|
|
|
|
config TIMA_UEVENT
|
|
bool "Uevent message propagation for TIMA"
|
|
default n
|
|
help
|
|
Uevent messages for TIMA PKM/LKM
|
|
|
|
config DRV_SAMSUNG
|
|
bool "samsung device dedicated drivers option"
|
|
default y
|
|
help
|
|
This is driver option for samsung sec_class
|
|
Say y here to enable samsung classes for drivers
|
|
Provide option of enabling sec class
|
|
Supports sec drivers key, touch, sec_debug etc
|
|
|
|
config SKU_THEME
|
|
bool "Bootloader SKU THEME MSM8976"
|
|
depends on ARCH_MSM8976
|
|
default n
|
|
help
|
|
This option is used to add sku theme Func.
|
|
Say Y if you want to enable this feature.
|
|
|
|
config BARCODE_PAINTER
|
|
bool "Bootloader BARCODE INFO MSM8976"
|
|
depends on ARCH_MSM8976
|
|
default n
|
|
help
|
|
This option is used to add sku theme Func.
|
|
Say Y if you want to enable this feature.
|
|
|
|
config RTC_AUTO_PWRON
|
|
bool "RTC Auto Power on PM8x16 PMICs"
|
|
depends on ARCH_MSM8976
|
|
default n
|
|
help
|
|
Support for the auto power on alarm on the PM8X16 PMIC.
|
|
Say Y if you want to enable this feature.
|
|
|
|
config RTC_AUTO_PWRON_PARAM
|
|
bool "RTC Auto Power on with param PM8x16 PMICs"
|
|
depends on RTC_AUTO_PWRON
|
|
default n
|
|
help
|
|
This option is used to prevent invalid RTC alarm power on.
|
|
Say Y if you want to enable this feature.
|
|
|
|
config SEC_PERIPHERAL_SECURE_CHK
|
|
bool "PERIPHERAL SECURE check"
|
|
default n
|
|
help
|
|
To check the authentication of peripheral image.
|
|
|
|
source "net/Kconfig"
|
|
|
|
source "drivers/Kconfig"
|
|
|
|
source "drivers/firmware/Kconfig"
|
|
|
|
source "fs/Kconfig"
|
|
|
|
source "arch/arm64/kvm/Kconfig"
|
|
|
|
source "arch/arm64/Kconfig.debug"
|
|
|
|
source "security/Kconfig"
|
|
|
|
source "crypto/Kconfig"
|
|
if CRYPTO
|
|
source "arch/arm64/crypto/Kconfig"
|
|
endif
|
|
|
|
source "lib/Kconfig"
|