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Commit 71e1f55a authored by Michael Ellerman's avatar Michael Ellerman Committed by Paul Mackerras
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[PATCH] ppc64: Simplify some lmb functions 



lmb_phys_mem_size() can always return lmb.memory.size, as long as it's called
after lmb_analyze(), which it is. There's no need to recalculate the size on
every call.

lmb_analyze() was calculating a few things we then threw away, so just don't
calculate them to start with.

Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 180379dc

arch/ppc64/kernel/lmb.c

+5 −22
Original line number Diff line number Diff line
@@ -119,20 +119,12 @@ lmb_init(void) 
void __init

lmb_analyze(void)

{

	unsigned long i;

	unsigned long mem_size = 0;

	unsigned long size_mask = 0;



	for (i=0; i < lmb.memory.cnt; i++) {

		unsigned long lmb_size;



		lmb_size = lmb.memory.region[i].size;

	int i;



		mem_size += lmb_size;

		size_mask |= lmb_size;

	}

	lmb.memory.size = 0;



	lmb.memory.size = mem_size;

	for (i = 0; i < lmb.memory.cnt; i++)

		lmb.memory.size += lmb.memory.region[i].size;

}



/* This routine called with relocation disabled. */
@@ -266,20 +258,11 @@ lmb_alloc_base(unsigned long size, unsigned long align, unsigned long max_addr) 
	return base;

}



/* You must call lmb_analyze() before this. */

unsigned long __init

lmb_phys_mem_size(void)

{

#ifdef CONFIG_MSCHUNKS

	return lmb.memory.size;

#else

	unsigned long total = 0;

	int i;



	/* add all physical memory to the bootmem map */

	for (i=0; i < lmb.memory.cnt; i++)

		total += lmb.memory.region[i].size;

	return total;

#endif /* CONFIG_MSCHUNKS */

}



unsigned long __init