Using two distinct DMA zones turned out to be problematic. Here's an attempt go back to a saner default. I tested this on both a RPi4 and QEMU. --- Nicolas Saenz Julienne (4): of/fdt: Update zone_dma_bits when running in bcm2711 dma-direct: Turn zone_dma_bits default value into a define arm64: Default to 32-bit ZONE_DMA mm: Update DMA zones description with arm64 newer behavior arch/arm64/mm/init.c | 12 ++++++++---- drivers/of/fdt.c | 10 ++++++++++ include/linux/dma-direct.h | 1 + include/linux/mmzone.h | 5 +++-- kernel/dma/direct.c | 2 +- 5 files changed, 23 insertions(+), 7 deletions(-) -- 2.28.0
