Huacai Chen d4b6f1562a LoongArch: Add Non-Uniform Memory Access (NUMA) support ... Add Non-Uniform Memory Access (NUMA) support for LoongArch. LoongArch has 48-bit physical address, but the HyperTransport I/O bus only support 40-bit address, so we need a custom phys_to_dma() and dma_to_phys() to extract the 4-bit node id (bit 44~47) from Loongson-3's 48-bit physical address space and embed it into 40-bit. In the 40-bit dma address, node id offset can be read from the LS7A_DMA_CFG register. Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>		2022-06-03 20:09:29 +08:00
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asm	LoongArch: Add Non-Uniform Memory Access (NUMA) support	2022-06-03 20:09:29 +08:00
uapi/asm	LoongArch: Add ELF and module support	2022-06-03 20:09:28 +08:00