CONFIG_ZONE_DMA: Support DMA zone

General informations

The Linux kernel configuration item CONFIG_ZONE_DMA has multiple definitions:

Support DMA zone found in mm/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt: Support DMA zone
• type: bool
• depends on: ( CONFIG_ARCH_HAS_ZONE_DMA_SET ) && ( CONFIG_ARM64 || CONFIG_X86 )
• defined in mm/Kconfig
• found in Linux kernels: 5.14–5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

(none)

DMA memory allocation support found in arch/x86/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt: DMA memory allocation support
• type: bool
• depends on: CONFIG_EXPERT
• defined in arch/x86/Kconfig
• found in Linux kernels: 3.0–3.19, 4.0–4.20, 5.0–5.13

Help text

DMA memory allocation support allows devices with less than 32-bit addressing to allocate within the first 16MB of address space. Disable if no such devices will be used.

If unsure, say Y.

Support DMA zone found in arch/arm64/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt: Support DMA zone
• type: bool
• depends on: CONFIG_EXPERT
• defined in arch/arm64/Kconfig
• found in Linux kernels: 5.5–5.13

Help text

(none)

found in arch/sparc/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: CONFIG_SPARC32
• defined in arch/sparc/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.13

Help text

(none)

found in arch/s390/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/s390/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.13

Help text

(none)

found in arch/powerpc/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: CONFIG_PPC_BOOK3E_64
• defined in arch/powerpc/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.13

Help text

(none)

found in arch/mips/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/mips/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.13

Help text

(none)

found in arch/microblaze/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/microblaze/Kconfig
• found in Linux kernels: 3.4–3.19, 4.0–4.20, 5.0–5.13

Help text

(none)

found in arch/m68k/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/m68k/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.13

Help text

(none)

found in arch/arm/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/arm/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.13

Help text

(none)

found in arch/alpha/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/alpha/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.13

Help text

(none)

found in arch/unicore32/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/unicore32/Kconfig
• found in Linux kernels: 3.7–3.19, 4.0–4.20, 5.0–5.8

Help text

(none)

found in arch/xtensa/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/xtensa/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.19

Help text

(none)

found in arch/m32r/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/m32r/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.16

Help text

(none)

found in arch/frv/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/frv/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.16

Help text

(none)

found in arch/cris/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/cris/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.16

Help text

(none)

found in arch/blackfin/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/blackfin/Kconfig
• found in Linux kernels: 2.6.22–2.6.39, 3.0–3.19, 4.0–4.16

Help text

(none)

found in arch/tile/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/tile/Kconfig
• found in Linux kernels: 3.6–3.19, 4.0–4.15

Help text

(none)

found in arch/ia64/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: ! CONFIG_IA64_SGI_SN2
• defined in arch/ia64/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.19, 4.0–4.15

Help text

(none)

found in arch/arm64/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/arm64/Kconfig
• found in Linux kernels: 3.15–3.19, 4.0–4.15

Help text

(none)

found in arch/h8300/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/h8300/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.12

Help text

(none)

found in arch/c6x/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/c6x/Kconfig
• found in Linux kernels: 3.3–3.4

Help text

(none)

found in arch/x86/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/x86/Kconfig
• found in Linux kernels: 2.6.24–2.6.39

Help text

(none)

found in arch/m68knommu/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/m68knommu/Kconfig
• found in Linux kernels: 2.6.21–2.6.38

Help text

(none)

found in arch/v850/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/v850/Kconfig
• found in Linux kernels: 2.6.21–2.6.26

Help text

(none)

found in arch/ppc/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/ppc/Kconfig
• found in Linux kernels: 2.6.21–2.6.26

Help text

(none)

found in arch/x86_64/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/x86_64/Kconfig
• found in Linux kernels: 2.6.21–2.6.23

Help text

(none)

found in arch/i386/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/i386/Kconfig
• found in Linux kernels: 2.6.21–2.6.23

Help text

(none)

found in arch/arm26/Kconfig

The configuration item CONFIG_ZONE_DMA:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/arm26/Kconfig
• found in Linux kernels: 2.6.21–2.6.22

Help text

(none)

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