Hexagon: Add configuration and makefiles for the Hexagon architecture.
Signed-off-by: Linas Vepstas <linas@codeaurora.org> Signed-off-by: Richard Kuo <rkuo@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Richard Kuo
Linus Torvalds
Родитель
60e1323156
Коммит
e95bf452a9
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@ -0,0 +1,220 @@
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# Hexagon configuration
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comment "Linux Kernel Configuration for Hexagon"
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config HEXAGON
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def_bool y
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select HAVE_OPROFILE
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select USE_GENERIC_SMP_HELPERS if SMP
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# Other pending projects/to-do items.
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# select HAVE_REGS_AND_STACK_ACCESS_API
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# select HAVE_HW_BREAKPOINT if PERF_EVENTS
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# select ARCH_HAS_CPU_IDLE_WAIT
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# select ARCH_WANT_OPTIONAL_GPIOLIB
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# select ARCH_REQUIRE_GPIOLIB
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# select HAVE_CLK
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# select IRQ_PER_CPU
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select HAVE_IRQ_WORK
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# select GENERIC_PENDING_IRQ if SMP
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select GENERIC_ATOMIC64
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select HAVE_PERF_EVENTS
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select HAVE_GENERIC_HARDIRQS
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select GENERIC_HARDIRQS_NO__DO_IRQ
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select GENERIC_HARDIRQS_NO_DEPRECATED
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# GENERIC_ALLOCATOR is used by dma_alloc_coherent()
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select GENERIC_ALLOCATOR
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select GENERIC_IRQ_SHOW
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select HAVE_ARCH_KGDB
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select HAVE_ARCH_TRACEHOOK
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select NO_IOPORT
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# mostly generic routines, with some accelerated ones
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---help---
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Qualcomm Hexagon is a processor architecture designed for high
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performance and low power across a wide variety of applications.
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config HEXAGON_ARCH_V1
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bool
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config HEXAGON_ARCH_V2
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bool
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config HEXAGON_ARCH_V3
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bool
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config HEXAGON_ARCH_V4
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bool
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config FRAME_POINTER
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def_bool y
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config LOCKDEP_SUPPORT
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def_bool y
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config PCI
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def_bool n
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config EARLY_PRINTK
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def_bool y
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config KTIME_SCALAR
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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 TRACE_IRQFLAGS_SUPPORT
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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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#
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# Use the generic interrupt handling code in kernel/irq/:
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#
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config GENERIC_IRQ_PROBE
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def_bool y
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config GENERIC_IOMAP
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def_bool y
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#config ZONE_DMA
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# bool
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# default y
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config HAS_DMA
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bool
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select HAVE_DMA_ATTRS
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default y
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config NEED_SG_DMA_LENGTH
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def_bool y
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config RWSEM_GENERIC_SPINLOCK
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def_bool n
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config RWSEM_XCHGADD_ALGORITHM
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def_bool y
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config GENERIC_FIND_NEXT_BIT
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def_bool y
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config GENERIC_HWEIGHT
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def_bool y
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config GENERIC_TIME
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def_bool y
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config GENERIC_CLOCKEVENTS
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def_bool y
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config GENERIC_CLOCKEVENTS_BROADCAST
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def_bool y
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config STACKTRACE_SUPPORT
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def_bool y
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select STACKTRACE
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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 BUG
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def_bool y
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menu "Machine selection"
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choice
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prompt "System type"
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default HEXAGON_ARCH_V2
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config HEXAGON_COMET
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bool "Comet Board"
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select HEXAGON_ARCH_V2
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---help---
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Support for the Comet platform.
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endchoice
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config HEXAGON_VM
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def_bool y
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config CMDLINE
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string "Default kernel command string"
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default ""
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help
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On some platforms, there is currently no way for the boot loader
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to pass arguments to the kernel. For these, you should supply some
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command-line options at build time by entering them here. At a
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minimum, you should specify the memory size and the root device
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(e.g., mem=64M root=/dev/nfs).
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config HEXAGON_ANGEL_TRAPS
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bool "Use Angel Traps"
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default n
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---help---
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Enable angel debug traps (for printk's).
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config SMP
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bool "Multi-Processing support"
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---help---
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Enables SMP support in the kernel. If unsure, say "Y"
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config NR_CPUS
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int "Maximum number of CPUs" if SMP
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range 2 6 if SMP
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default "1" if !SMP
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default "6" if SMP
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---help---
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This allows you to specify the maximum number of CPUs which this
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kernel will support. The maximum supported value is 6 and the
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minimum value which makes sense is 2.
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This is purely to save memory - each supported CPU adds
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approximately eight kilobytes to the kernel image.
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choice
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prompt "Kernel page size"
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default PAGE_SIZE_4KB
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---help---
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Changes the default page size; use with caution.
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config PAGE_SIZE_4KB
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bool "4KB"
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config PAGE_SIZE_16KB
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bool "16KB"
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config PAGE_SIZE_64KB
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bool "64KB"
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config PAGE_SIZE_256KB
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bool "256KB"
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endchoice
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source "mm/Kconfig"
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source "kernel/Kconfig.hz"
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source "kernel/time/Kconfig"
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config GENERIC_GPIO
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bool "Generic GPIO support"
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default n
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endmenu
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source "init/Kconfig"
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source "drivers/Kconfig"
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source "fs/Kconfig"
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menu "Executable File Formats"
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source "fs/Kconfig.binfmt"
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endmenu
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source "net/Kconfig"
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source "security/Kconfig"
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source "crypto/Kconfig"
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source "lib/Kconfig"
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menu "Kernel hacking"
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source "lib/Kconfig.debug"
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endmenu
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@ -0,0 +1,58 @@
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# Makefile for the Hexagon arch
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KBUILD_DEFCONFIG = comet_defconfig
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# Do not use GP-relative jumps
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KBUILD_CFLAGS += -G0
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LDFLAGS_vmlinux += -G0
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# Do not use single-byte enums; these will overflow.
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KBUILD_CFLAGS += -fno-short-enums
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# Modules must use either long-calls, or use pic/plt.
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# Use long-calls for now, it's easier. And faster.
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# CFLAGS_MODULE += -fPIC
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# LDFLAGS_MODULE += -shared
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CFLAGS_MODULE += -mlong-calls
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cflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1)
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cflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2)
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cflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3)
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cflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4)
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aflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1)
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aflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2)
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aflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3)
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aflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4)
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ldflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1)
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ldflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2)
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ldflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3)
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ldflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4)
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KBUILD_CFLAGS += $(cflags-y)
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KBUILD_AFLAGS += $(aflags-y)
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# no KBUILD_LDFLAGS?
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LDFLAGS += $(ldflags-y)
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# Thread-info register will be r19. This value is not configureable;
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# it is hard-coded in several files.
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TIR_NAME := r19
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KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADINFO_REG=$(TIR_NAME) -D__linux__
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KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME)
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LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
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libs-y += $(LIBGCC)
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head-y := arch/hexagon/kernel/head.o \
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arch/hexagon/kernel/init_task.o
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core-y += arch/hexagon/kernel/ \
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arch/hexagon/mm/ \
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arch/hexagon/lib/
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# arch/hexagon/platform/common/
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#
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#core-$(CONFIG_HEXAGON_COMET) += arch/hexagon/platform/comet/
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#machine-$(CONFIG_HEXAGON_COMET) := comet
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@ -0,0 +1,18 @@
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extra-y := head.o vmlinux.lds init_task.o
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obj-$(CONFIG_SMP) += smp.o topology.o
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obj-y += setup.o irq_cpu.o traps.o syscalltab.o signal.o time.o
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obj-y += process.o syscall.o trampoline.o reset.o ptrace.o
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obj-y += vdso.o
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obj-$(CONFIG_KGDB) += kgdb.o
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obj-$(CONFIG_MODULES) += module.o hexagon_ksyms.o
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# Modules required to work with the Hexagon Virtual Machine
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obj-y += vm_entry.o vm_events.o vm_switch.o vm_ops.o vm_init_segtable.o
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obj-y += vm_vectors.o
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obj-$(CONFIG_HAS_DMA) += dma.o
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obj-$(CONFIG_STACKTRACE) += stacktrace.o
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@ -0,0 +1,104 @@
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/*
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* Copyright (C) 1996 David S. Miller
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* Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Ralf Baechle
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* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
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* Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
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* Copyright (C) 2000 MIPS Technologies, Inc.
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*
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* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include <linux/compat.h>
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#include <linux/types.h>
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#include <linux/sched.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/kbuild.h>
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#include <asm/ptrace.h>
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#include <asm/processor.h>
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/* This file is used to produce asm/linkerscript constants from header
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files typically used in c. Specifically, it generates asm-offsets.h */
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int main(void)
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{
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COMMENT("This is a comment.");
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/* might get these from somewhere else. */
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DEFINE(_PAGE_SIZE, PAGE_SIZE);
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DEFINE(_PAGE_SHIFT, PAGE_SHIFT);
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BLANK();
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COMMENT("Hexagon pt_regs definitions");
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OFFSET(_PT_SYSCALL_NR, pt_regs, syscall_nr);
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OFFSET(_PT_UGPGP, pt_regs, ugpgp);
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OFFSET(_PT_R3130, pt_regs, r3130);
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OFFSET(_PT_R2928, pt_regs, r2928);
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OFFSET(_PT_R2726, pt_regs, r2726);
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OFFSET(_PT_R2524, pt_regs, r2524);
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OFFSET(_PT_R2322, pt_regs, r2322);
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OFFSET(_PT_R2120, pt_regs, r2120);
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OFFSET(_PT_R1918, pt_regs, r1918);
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OFFSET(_PT_R1716, pt_regs, r1716);
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OFFSET(_PT_R1514, pt_regs, r1514);
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OFFSET(_PT_R1312, pt_regs, r1312);
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OFFSET(_PT_R1110, pt_regs, r1110);
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OFFSET(_PT_R0908, pt_regs, r0908);
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OFFSET(_PT_R0706, pt_regs, r0706);
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OFFSET(_PT_R0504, pt_regs, r0504);
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OFFSET(_PT_R0302, pt_regs, r0302);
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OFFSET(_PT_R0100, pt_regs, r0100);
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OFFSET(_PT_LC0SA0, pt_regs, lc0sa0);
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OFFSET(_PT_LC1SA1, pt_regs, lc1sa1);
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OFFSET(_PT_M1M0, pt_regs, m1m0);
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OFFSET(_PT_PREDSUSR, pt_regs, predsusr);
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OFFSET(_PT_EVREC, pt_regs, hvmer);
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OFFSET(_PT_ER_VMEL, pt_regs, hvmer.vmel);
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OFFSET(_PT_ER_VMEST, pt_regs, hvmer.vmest);
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OFFSET(_PT_ER_VMPSP, pt_regs, hvmer.vmpsp);
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OFFSET(_PT_ER_VMBADVA, pt_regs, hvmer.vmbadva);
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DEFINE(_PT_REGS_SIZE, sizeof(struct pt_regs));
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BLANK();
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COMMENT("Hexagon thread_info definitions");
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OFFSET(_THREAD_INFO_FLAGS, thread_info, flags);
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OFFSET(_THREAD_INFO_PT_REGS, thread_info, regs);
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OFFSET(_THREAD_INFO_SP, thread_info, sp);
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DEFINE(_THREAD_SIZE, THREAD_SIZE);
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BLANK();
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COMMENT("Hexagon hexagon_switch_stack definitions");
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OFFSET(_SWITCH_R1716, hexagon_switch_stack, r1716);
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OFFSET(_SWITCH_R1918, hexagon_switch_stack, r1918);
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OFFSET(_SWITCH_R2120, hexagon_switch_stack, r2120);
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OFFSET(_SWITCH_R2322, hexagon_switch_stack, r2322);
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|
|
||||||
|
OFFSET(_SWITCH_R2524, hexagon_switch_stack, r2524);
|
||||||
|
OFFSET(_SWITCH_R2726, hexagon_switch_stack, r2726);
|
||||||
|
OFFSET(_SWITCH_FP, hexagon_switch_stack, fp);
|
||||||
|
OFFSET(_SWITCH_LR, hexagon_switch_stack, lr);
|
||||||
|
DEFINE(_SWITCH_STACK_SIZE, sizeof(struct hexagon_switch_stack));
|
||||||
|
BLANK();
|
||||||
|
|
||||||
|
COMMENT("Hexagon task_struct definitions");
|
||||||
|
OFFSET(_TASK_THREAD_INFO, task_struct, stack);
|
||||||
|
OFFSET(_TASK_STRUCT_THREAD, task_struct, thread);
|
||||||
|
|
||||||
|
COMMENT("Hexagon thread_struct definitions");
|
||||||
|
OFFSET(_THREAD_STRUCT_SWITCH_SP, thread_struct, switch_sp);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,88 @@
|
||||||
|
/*
|
||||||
|
* Linker script for Hexagon kernel
|
||||||
|
*
|
||||||
|
* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License version 2 and
|
||||||
|
* only version 2 as published by the Free Software Foundation.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
||||||
|
* 02110-1301, USA.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define LOAD_OFFSET PAGE_OFFSET
|
||||||
|
|
||||||
|
#include <asm-generic/vmlinux.lds.h>
|
||||||
|
#include <asm/asm-offsets.h> /* Most of the kernel defines are here */
|
||||||
|
#include <asm/mem-layout.h> /* except for page_offset */
|
||||||
|
#include <asm/cache.h> /* and now we're pulling cache line size */
|
||||||
|
OUTPUT_ARCH(hexagon)
|
||||||
|
ENTRY(stext)
|
||||||
|
|
||||||
|
jiffies = jiffies_64;
|
||||||
|
|
||||||
|
/*
|
||||||
|
See asm-generic/vmlinux.lds.h for expansion of some of these macros.
|
||||||
|
See asm-generic/sections.h for seemingly required labels.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define PAGE_SIZE _PAGE_SIZE
|
||||||
|
|
||||||
|
/* This LOAD_OFFSET is temporary for debugging on the simulator; it may change
|
||||||
|
for hypervisor pseudo-physical memory. */
|
||||||
|
|
||||||
|
|
||||||
|
SECTIONS
|
||||||
|
{
|
||||||
|
. = PAGE_OFFSET + LOAD_ADDRESS;
|
||||||
|
|
||||||
|
__init_begin = .;
|
||||||
|
HEAD_TEXT_SECTION
|
||||||
|
INIT_TEXT_SECTION(PAGE_SIZE)
|
||||||
|
PERCPU_SECTION(L1_CACHE_BYTES)
|
||||||
|
__init_end = .;
|
||||||
|
|
||||||
|
. = ALIGN(_PAGE_SIZE);
|
||||||
|
_stext = .;
|
||||||
|
.text : AT(ADDR(.text) - LOAD_OFFSET) {
|
||||||
|
_text = .;
|
||||||
|
TEXT_TEXT
|
||||||
|
SCHED_TEXT
|
||||||
|
LOCK_TEXT
|
||||||
|
KPROBES_TEXT
|
||||||
|
*(.fixup)
|
||||||
|
}
|
||||||
|
_etext = .;
|
||||||
|
|
||||||
|
INIT_DATA_SECTION(PAGE_SIZE)
|
||||||
|
|
||||||
|
_sdata = .;
|
||||||
|
RW_DATA_SECTION(32,PAGE_SIZE,PAGE_SIZE)
|
||||||
|
RO_DATA_SECTION(PAGE_SIZE)
|
||||||
|
_edata = .;
|
||||||
|
|
||||||
|
EXCEPTION_TABLE(16)
|
||||||
|
NOTES
|
||||||
|
|
||||||
|
BSS_SECTION(_PAGE_SIZE, _PAGE_SIZE, _PAGE_SIZE)
|
||||||
|
|
||||||
|
_end = .;
|
||||||
|
|
||||||
|
/DISCARD/ : {
|
||||||
|
EXIT_TEXT
|
||||||
|
EXIT_DATA
|
||||||
|
EXIT_CALL
|
||||||
|
}
|
||||||
|
|
||||||
|
STABS_DEBUG
|
||||||
|
DWARF_DEBUG
|
||||||
|
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,4 @@
|
||||||
|
#
|
||||||
|
# Makefile for hexagon-specific library files.
|
||||||
|
#
|
||||||
|
obj-y = checksum.o io.o memcpy.o memset.o
|
||||||
|
|
@ -0,0 +1,6 @@
|
||||||
|
#
|
||||||
|
# Makefile for Hexagon memory management subsystem
|
||||||
|
#
|
||||||
|
|
||||||
|
obj-y := init.o pgalloc.o ioremap.o uaccess.o vm_fault.o cache.o
|
||||||
|
obj-y += copy_to_user.o copy_from_user.o strnlen_user.o vm_tlb.o
|
||||||
Загрузка…
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