linux-4.4.1/CONFIG_ARCH_DMA_ADDR_T_64BIT

参照元†

• linux-4.4.1/dma_addr_t

説明†

• パス: 複数あり
  • ARM: linux-4.4.1/arch/arm/mm/Kconfig
    • Broadcom: linux-4.4.1/arch/arm/mach-bcm/Kconfig
    • Xen: linux-4.4.1/arch/arm/Kconfig
    • Renesas SH mobile: linux-4.4.1/arch/arm/mach-shmobile/Kconfig
    • Samsung Exynos: linux-4.4.1/arch/arm/mach-exynos/Kconfig
    • LSI Corp Axxia: linux-4.4.1/arch/arm/mach-axxia/Kconfig
    • Calxeda Highbank: linux-4.4.1/arch/arm/mach-highbank/Kconfig
  • x86: linux-4.4.1/arch/x86/Kconfig
  • ia64: linux-4.4.1/arch/ia64/Kconfig

• FIXME: これは何？
  • 説明

参考†

$ grep -r ARCH_DMA_ADDR_T_ arch/
arch/arc/Kconfig:config ARCH_DMA_ADDR_T_64BIT
arch/arm/mm/Kconfig:config ARCH_DMA_ADDR_T_64BIT
arch/arm/mach-bcm/Kconfig:      select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
arch/arm/Kconfig:       select ARCH_DMA_ADDR_T_64BIT
arch/arm/mach-shmobile/Kconfig: select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
arch/arm/mach-exynos/Kconfig:   select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
arch/arm/mach-axxia/Kconfig:    select ARCH_DMA_ADDR_T_64BIT
arch/arm/mach-highbank/Kconfig: select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
arch/x86/Kconfig:config ARCH_DMA_ADDR_T_64BIT
arch/ia64/Kconfig:config ARCH_DMA_ADDR_T_64BIT
arch/mips/Kconfig:config ARCH_DMA_ADDR_T_64BIT
arch/s390/Kconfig:config ARCH_DMA_ADDR_T_64BIT
arch/tile/Kconfig:config ARCH_DMA_ADDR_T_64BIT
arch/alpha/Kconfig:config ARCH_DMA_ADDR_T_64BIT
arch/arm64/Kconfig:config ARCH_DMA_ADDR_T_64BIT
arch/powerpc/Kconfig:config ARCH_DMA_ADDR_T_64BIT

実装†

ARM: arch/arm/mm/Kconfig†

config ARCH_DMA_ADDR_T_64BIT
        bool

• アーキテクチャ依存

Broadcom: arch/arm/mach-bcm/Kconfig†

Xen: arch/arm/Kconfig†

config XEN
        bool "Xen guest support on ARM"
        depends on ARM && AEABI && OF
        depends on CPU_V7 && !CPU_V6
        depends on !GENERIC_ATOMIC64
        depends on MMU
        select ARCH_DMA_ADDR_T_64BIT
        select ARM_PSCI
        select SWIOTLB_XEN
        help
          Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.

• • linux-4.4.1/CONFIG_XEN
  • linux-4.4.1/CONFIG_ARM
  • linux-4.4.1/CONFIG_AEABI
  • linux-4.4.1/CONFIG_OF
  • linux-4.4.1/CONFIG_CPU_V7
  • linux-4.4.1/CONFIG_CPU_V6
  • linux-4.4.1/CONFIG_GENERIC_ATOMIC64
  • linux-4.4.1/CONFIG_MMU

Renesas SH Mobile: arch/arm/mach-shmobile/Kconfig†

Samsung Exynos: arch/arm/mach-exynos/Kconfig†

LSI Corp Axxia: arch/arm/mach-axxia/Kconfig†

Calxeda Highbank: arch/arm/mach-highbank/Kconfig†

x86: arch/x86/Kconfig†

config ARCH_DMA_ADDR_T_64BIT
        def_bool y
        depends on X86_64 || HIGHMEM64G

• • linux-4.4.1/CONFIG_X86_64
  • linux-4.4.1/CONFIG_HIGHMEM64G

ia64: arch/ia64/Kconfig†

config ARCH_DMA_ADDR_T_64BIT
        def_bool y

• 64bit

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