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x86: add mtrr_cleanup_debug command line

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add mtrr_cleanup_debug to print out more info about layout

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu 2008-09-27 00:30:06 -07:00 committed by Ingo Molnar
parent 2313c2793d
commit 54d45ff420
1 changed files with 11 additions and 3 deletions
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14
arch/x86/kernel/cpu/mtrr/main.c
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@ -836,6 +836,13 @@ static int __init enable_mtrr_cleanup_setup(char *str)
}
early_param("enble_mtrr_cleanup", enable_mtrr_cleanup_setup);
static int __init mtrr_cleanup_debug_setup(char *str)
{
debug_print = 1;
return 0;
}
early_param("mtrr_cleanup_debug", mtrr_cleanup_debug_setup);
struct var_mtrr_state {
unsigned long range_startk;
unsigned long range_sizek;
@ -1227,7 +1234,7 @@ static int __init mtrr_cleanup(unsigned address_bits)
if (mtrr_chunk_size && mtrr_gran_size) {
int num_reg;
debug_print = 1;
debug_print++;
/* convert ranges to var ranges state */
num_reg = x86_setup_var_mtrrs(range, nr_range, mtrr_chunk_size,
mtrr_gran_size);
@ -1263,7 +1270,7 @@ static int __init mtrr_cleanup(unsigned address_bits)
}
printk(KERN_INFO "invalid mtrr_gran_size or mtrr_chunk_size, "
"will find optimal one\n");
debug_print = 0;
debug_print--;
memset(result, 0, sizeof(result[0]));
}
@ -1366,8 +1373,9 @@ static int __init mtrr_cleanup(unsigned address_bits)
chunk_size <<= 10;
gran_size = result[i].gran_sizek;
gran_size <<= 10;
debug_print = 1;
debug_print++;
x86_setup_var_mtrrs(range, nr_range, chunk_size, gran_size);
debug_print--;
set_var_mtrr_all(address_bits);
return 1;
}