MIPS: Loongson64: Fix up reserving kernel memory range (1dac4585) · Commits · 戴 / test

Reserve memory from &_text to &_end. Otherwise if kernel address was modified, the memory range of start_pfn to kernel_start_pfn would be reserved. Then we could not use this range. Signed-off-by:

Jinyang He <hejinyang@loongson.cn> Signed-off-by:

Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/loongson64/numa.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -151,6 +151,9 @@ static void __init node_mem_init(unsigned int node)
		NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn;

		if (node == 0) {
		/* kernel start address */
		unsigned long kernel_start_pfn = PFN_DOWN(__pa_symbol(&_text));

		/* kernel end address */
		unsigned long kernel_end_pfn = PFN_UP(__pa_symbol(&_end));

		@@ -158,8 +161,8 @@ static void __init node_mem_init(unsigned int node)
		max_low_pfn = end_pfn;

		/* Reserve the kernel text/data/bss */
		memblock_reserve(start_pfn << PAGE_SHIFT,
		((kernel_end_pfn - start_pfn) << PAGE_SHIFT));
		memblock_reserve(kernel_start_pfn << PAGE_SHIFT,
		((kernel_end_pfn - kernel_start_pfn) << PAGE_SHIFT));

		/* Reserve 0xfe000000~0xffffffff for RS780E integrated GPU */
		if (node_end_pfn(0) >= (0xffffffff >> PAGE_SHIFT))

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