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| author | Ingo Molnar <mingo@kernel.org> | 2015-02-19 11:59:18 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-02-19 11:59:18 +0100 |
| commit | ee408b4207c8281a91f039e89d06de264d319466 (patch) | |
| tree | f4f1ae0fa05141477022fbfa812902d66b90e703 /arch/x86 | |
| parent | Documentation/x86: Fix path in zero-page.txt (diff) | |
| parent | x86/mm/init: Fix incorrect page size in init_memory_mapping() printks (diff) | |
| download | linux-ee408b4207c8281a91f039e89d06de264d319466.tar.xz linux-ee408b4207c8281a91f039e89d06de264d319466.zip | |
Merge branch 'tip-x86-mm' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp into x86/urgent
Pull boot printout fix from Borislav Petkov.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/mm/init.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 079c3b6a3ff1..7ff24240d863 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -238,6 +238,31 @@ static void __init_refok adjust_range_page_size_mask(struct map_range *mr, } } +static const char *page_size_string(struct map_range *mr) +{ + static const char str_1g[] = "1G"; + static const char str_2m[] = "2M"; + static const char str_4m[] = "4M"; + static const char str_4k[] = "4k"; + + if (mr->page_size_mask & (1<<PG_LEVEL_1G)) + return str_1g; + /* + * 32-bit without PAE has a 4M large page size. + * PG_LEVEL_2M is misnamed, but we can at least + * print out the right size in the string. + */ + if (IS_ENABLED(CONFIG_X86_32) && + !IS_ENABLED(CONFIG_X86_PAE) && + mr->page_size_mask & (1<<PG_LEVEL_2M)) + return str_4m; + + if (mr->page_size_mask & (1<<PG_LEVEL_2M)) + return str_2m; + + return str_4k; +} + static int __meminit split_mem_range(struct map_range *mr, int nr_range, unsigned long start, unsigned long end) @@ -333,8 +358,7 @@ static int __meminit split_mem_range(struct map_range *mr, int nr_range, for (i = 0; i < nr_range; i++) printk(KERN_DEBUG " [mem %#010lx-%#010lx] page %s\n", mr[i].start, mr[i].end - 1, - (mr[i].page_size_mask & (1<<PG_LEVEL_1G))?"1G":( - (mr[i].page_size_mask & (1<<PG_LEVEL_2M))?"2M":"4k")); + page_size_string(&mr[i])); return nr_range; } |