arch/arm64/mm/init.c

130

max_zone_pfns[ZONE_DMA32] = PFN_DOWN(dma32_phys_limit);

arch/loongarch/mm/init.c

66

max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;

arch/mips/loongson64/numa.c

159

max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;

arch/mips/mm/init.c

403

max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;

arch/riscv/mm/init.c

85

max_zone_pfns[ZONE_DMA32] = PFN_DOWN(dma32_phys_limit);

arch/x86/mm/init.c

1005

max_zone_pfns[ZONE_DMA32] = min(MAX_DMA32_PFN, max_low_pfn);

include/linux/gfp.h

79

#define OPT_ZONE_DMA32 ZONE_DMA32

include/trace/events/mmflags.h

303

IFDEF_ZONE_DMA32( EM (ZONE_DMA32, "DMA32")) \

kernel/dma/pool.c

188

#define has_managed_dma32 has_managed_zone(ZONE_DMA32)

mm/page_alloc.c

263

[ZONE_DMA32] = 256,

mm/page_alloc.c

3783

BUILD_BUG_ON(ZONE_NORMAL - ZONE_DMA32 != 1);