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path: root/arch/loongarch/include/asm/page.h
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2022-08-25LoongArch: Cleanup headers to avoid circular dependencyHuacai Chen1-1/+1
When enable GENERIC_IOREMAP, there will be circular dependency to cause build errors. The root cause is that pgtable.h shouldn't include io.h but pgtable.h need some macros defined in io.h. So cleanup those macros and remove the unnecessary inclusions, as other architectures do. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2022-08-12LoongArch: Add PCI controller supportHuacai Chen1-2/+0
Loongson64 based systems are PC-like systems which use PCI/PCIe as its I/O bus, This patch adds the PCI host controller support for LoongArch. Reviewed-by: WANG Xuerui <git@xen0n.name> Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2022-07-07LoongArch: Fix build errors for tinyconfigHuacai Chen1-0/+1
Building loongarch:tinyconfig fails with the following error. ./arch/loongarch/include/asm/page.h: In function 'pfn_valid': ./arch/loongarch/include/asm/page.h:42:32: error: 'PHYS_OFFSET' undeclared Add the missing include file and fix succeeding vdso errors. Fixes: 09cfefb7fa70 ("LoongArch: Add memory management") Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2022-06-03LoongArch: Add memory managementHuacai Chen1-0/+115
Add memory management support for LoongArch, including: cache and tlb management, page fault handling and ioremap/mmap support. Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>