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

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Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu 2008-10-02 23:26:59 -07:00 committed by Ingo Molnar
parent 834836ee6a
commit 8bb39311bf
1 changed files with 24 additions and 1 deletions
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25
arch/x86/kernel/cpu/mtrr/main.c
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@ -1211,13 +1211,14 @@ static unsigned long __initdata min_loss_pfn[RANGE_NUM];
static int __init mtrr_cleanup(unsigned address_bits) static int __init mtrr_cleanup(unsigned address_bits)
{ {
unsigned long extra_remove_base, extra_remove_size; unsigned long extra_remove_base, extra_remove_size;
unsigned long i, base, size, def, dummy; unsigned long base, size, def, dummy;
mtrr_type type; mtrr_type type;
int nr_range, nr_range_new; int nr_range, nr_range_new;
u64 chunk_size, gran_size; u64 chunk_size, gran_size;
unsigned long range_sums, range_sums_new; unsigned long range_sums, range_sums_new;
int index_good; int index_good;
int num_reg_good; int num_reg_good;
int i;
/* extra one for all 0 */ /* extra one for all 0 */
int num[MTRR_NUM_TYPES + 1]; 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]) num_var_ranges - num[MTRR_NUM_TYPES])
return 0; 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)); memset(range, 0, sizeof(range));
extra_remove_size = 0; extra_remove_size = 0;
if (mtrr_tom2) { if (mtrr_tom2) {