LoongArch: Use static defined zero page rather than allocated

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On LoongArch system, there is only one page needed for zero page (no
cache synonyms), and there is no COLOR_ZERO_PAGE, so zero_page_mask is
useless and the macro __HAVE_COLOR_ZERO_PAGE is not necessary.

Like other popular architectures, It is simpler to define the zero page
in kernel BSS code segment rather than dynamically allocate.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

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This commit is contained in:

Bibo Mao 2023-09-06 22:53:10 +08:00 • committed by Huacai Chen

parent 2bb20d2926

commit 0921af6ccf

4 changed files with 3 additions and 35 deletions

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2

arch/loongarch/include/asm/mmzone.h

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7

arch/loongarch/include/asm/pgtable.h

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1

arch/loongarch/kernel/numa.c

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28

arch/loongarch/mm/init.c

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