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sh: pretty print virtual memory map on boot.
This cribs the pretty printing from arch/x86/mm/init_32.c to dump the virtual memory layout on boot. This is primarily intended as a debugging aid, given that the newer CPUs have full control over their address space and as such have little to nothing in common with the legacy layout. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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1 changed files with 36 additions and 2 deletions
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@ -260,6 +260,9 @@ void __init mem_init(void)
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memset(empty_zero_page, 0, PAGE_SIZE);
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__flush_wback_region(empty_zero_page, PAGE_SIZE);
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/* Initialize the vDSO */
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vsyscall_init();
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codesize = (unsigned long) &_etext - (unsigned long) &_text;
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datasize = (unsigned long) &_edata - (unsigned long) &_etext;
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initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
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@ -272,8 +275,39 @@ void __init mem_init(void)
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datasize >> 10,
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initsize >> 10);
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/* Initialize the vDSO */
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vsyscall_init();
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printk(KERN_INFO "virtual kernel memory layout:\n"
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" fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n"
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#ifdef CONFIG_HIGHMEM
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" pkmap : 0x%08lx - 0x%08lx (%4ld kB)\n"
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#endif
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" vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n"
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" lowmem : 0x%08lx - 0x%08lx (%4ld MB)\n"
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" .init : 0x%08lx - 0x%08lx (%4ld kB)\n"
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" .data : 0x%08lx - 0x%08lx (%4ld kB)\n"
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" .text : 0x%08lx - 0x%08lx (%4ld kB)\n",
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FIXADDR_START, FIXADDR_TOP,
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(FIXADDR_TOP - FIXADDR_START) >> 10,
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#ifdef CONFIG_HIGHMEM
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PKMAP_BASE, PKMAP_BASE+LAST_PKMAP*PAGE_SIZE,
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(LAST_PKMAP*PAGE_SIZE) >> 10,
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#endif
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(unsigned long)VMALLOC_START, VMALLOC_END,
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(VMALLOC_END - VMALLOC_START) >> 20,
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(unsigned long)memory_start, (unsigned long)high_memory,
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((unsigned long)high_memory - (unsigned long)memory_start) >> 20,
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(unsigned long)&__init_begin, (unsigned long)&__init_end,
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((unsigned long)&__init_end -
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(unsigned long)&__init_begin) >> 10,
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(unsigned long)&_etext, (unsigned long)&_edata,
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((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
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(unsigned long)&_text, (unsigned long)&_etext,
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((unsigned long)&_etext - (unsigned long)&_text) >> 10);
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mem_init_done = 1;
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}
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