[PATCH] riscv: mm: Move dma_contiguous_reserve() after NUMA initialization

patchwork-bot+linux-riscv at kernel.org patchwork-bot+linux-riscv at kernel.org
Tue Jul 21 16:50:07 PDT 2026


Hello:

This patch was applied to riscv/linux.git (for-next)
by Paul Walmsley <pjw at kernel.org>:

On Tue, 14 Jul 2026 20:56:48 +0200 you wrote:
> Move the dma_contiguous_reserve() call from setup_bootmem() to
> misc_mem_init(), placing it after arch_numa_init(). This ensures that
> NUMA topology is initialized when reserving contiguous memory for DMA.
> 
> Tested with CMA_SIZE_PERNUMA enabled and two NUMA nodes on QEMU:
> 
> qemu-system-riscv64 \
> 	-machine virt \
> 	-nographic \
> 	-smp 2 -m 512M \
> 	-numa node,nodeid=0,cpus=0,memdev=m0 \
> 	-numa node,nodeid=1,cpus=1,memdev=m1 \
> 	-object memory-backend-ram,id=m0,size=256M \
> 	-object memory-backend-ram,id=m1,size=256M \
> 	-kernel arch/riscv/boot/Image \
> 	-append "console=ttyS0 earlycon loglevel=7 cma=16M"
> 
> [...]

Here is the summary with links:
  - riscv: mm: Move dma_contiguous_reserve() after NUMA initialization
    https://git.kernel.org/riscv/c/76e885f2b89d

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