Commit 35f99c0d authored by Paul Mundt's avatar Paul Mundt
Browse files

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: default avatarPaul Mundt <lethal@linux-sh.org>
parent d9116d07

arch/sh/mm/init.c

+36 −2
Original line number Diff line number Diff line
@@ -260,6 +260,9 @@ void __init mem_init(void) 
	memset(empty_zero_page, 0, PAGE_SIZE);

	__flush_wback_region(empty_zero_page, PAGE_SIZE);



	/* Initialize the vDSO */

	vsyscall_init();



	codesize =  (unsigned long) &_etext - (unsigned long) &_text;

	datasize =  (unsigned long) &_edata - (unsigned long) &_etext;

	initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
@@ -272,8 +275,39 @@ void __init mem_init(void) 
		datasize >> 10,

		initsize >> 10);



	/* Initialize the vDSO */

	vsyscall_init();

	printk(KERN_INFO "virtual kernel memory layout:\n"

		"    fixmap  : 0x%08lx - 0x%08lx   (%4ld kB)\n"

#ifdef CONFIG_HIGHMEM

		"    pkmap   : 0x%08lx - 0x%08lx   (%4ld kB)\n"

#endif

		"    vmalloc : 0x%08lx - 0x%08lx   (%4ld MB)\n"

		"    lowmem  : 0x%08lx - 0x%08lx   (%4ld MB)\n"

		"      .init : 0x%08lx - 0x%08lx   (%4ld kB)\n"

		"      .data : 0x%08lx - 0x%08lx   (%4ld kB)\n"

		"      .text : 0x%08lx - 0x%08lx   (%4ld kB)\n",

		FIXADDR_START, FIXADDR_TOP,

		(FIXADDR_TOP - FIXADDR_START) >> 10,



#ifdef CONFIG_HIGHMEM

		PKMAP_BASE, PKMAP_BASE+LAST_PKMAP*PAGE_SIZE,

		(LAST_PKMAP*PAGE_SIZE) >> 10,

#endif



		(unsigned long)VMALLOC_START, VMALLOC_END,

		(VMALLOC_END - VMALLOC_START) >> 20,



		(unsigned long)memory_start, (unsigned long)high_memory,

		((unsigned long)high_memory - (unsigned long)memory_start) >> 20,



		(unsigned long)&__init_begin, (unsigned long)&__init_end,

		((unsigned long)&__init_end -

		 (unsigned long)&__init_begin) >> 10,



		(unsigned long)&_etext, (unsigned long)&_edata,

		((unsigned long)&_edata - (unsigned long)&_etext) >> 10,



		(unsigned long)&_text, (unsigned long)&_etext,

		((unsigned long)&_etext - (unsigned long)&_text) >> 10);



	mem_init_done = 1;

}