Commit 3ff2228d authored Apr 30, 2018 by Greentime Hu

nds32: Fix the virtual address may map too much range by tlbop issue.



We use tlbop to map virtual address in the first beginning, however it
may map too much if DRAM size is not that big. We have to invalidate the
mapping when the page table is created.

Signed-off-by: Greentime Hu <greentime@andestech.com>

parent b3b112bb

arch/nds32/kernel/setup.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -293,6 +293,9 @@ void __init setup_arch(char **cmdline_p)
		/* paging_init() sets up the MMU and marks all pages as reserved */
		paging_init();

		/* invalidate all TLB entries because the new mapping is created */
		__nds32__tlbop_flua();

		/* use generic way to parse */
		parse_early_param();