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Commit 8bb39311 authored by Yinghai Lu's avatar Yinghai Lu Committed by Ingo Molnar
Browse files

x86, debug: mtrr_cleanup print out var mtrr before change it 



Signed-off-by: default avatarYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 834836ee

arch/x86/kernel/cpu/mtrr/main.c

+24 −1
Original line number Diff line number Diff line
@@ -1211,13 +1211,14 @@ static unsigned long __initdata min_loss_pfn[RANGE_NUM]; 
static int __init mtrr_cleanup(unsigned address_bits)

{

	unsigned long extra_remove_base, extra_remove_size;

	unsigned long i, base, size, def, dummy;

	unsigned long base, size, def, dummy;

	mtrr_type type;

	int nr_range, nr_range_new;

	u64 chunk_size, gran_size;

	unsigned long range_sums, range_sums_new;

	int index_good;

	int num_reg_good;

	int i;



	/* extra one for all 0 */

	int num[MTRR_NUM_TYPES + 1];
@@ -1259,6 +1260,28 @@ static int __init mtrr_cleanup(unsigned address_bits) 
		num_var_ranges - num[MTRR_NUM_TYPES])

		return 0;



	/* print original var MTRRs at first, for debugging: */

	printk(KERN_DEBUG "original variable MTRRs\n");

	for (i = 0; i < num_var_ranges; i++) {

		char start_factor = 'K', size_factor = 'K';

		unsigned long start_base, size_base;



		size_base = range_state[i].size_pfn << (PAGE_SHIFT - 10);

		if (!size_base)

			continue;



		size_base = to_size_factor(size_base, &size_factor),

		start_base = range_state[i].base_pfn << (PAGE_SHIFT - 10);

		start_base = to_size_factor(start_base, &start_factor),



		printk(KERN_DEBUG "reg %d, base: %ld%cB, range: %ld%cB, type %s\n",

			i, start_base, start_factor,

			size_base, size_factor,

			(type == MTRR_TYPE_UNCACHABLE) ? "UC" :

			    ((type == MTRR_TYPE_WRBACK) ? "WB" : "Other")

			);

	}



	memset(range, 0, sizeof(range));

	extra_remove_size = 0;

	if (mtrr_tom2) {