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Commit 54d45ff4 authored by Yinghai Lu's avatar Yinghai Lu Committed by Ingo Molnar
Browse files

x86: add mtrr_cleanup_debug command line 



add mtrr_cleanup_debug to print out more info about layout

Signed-off-by: default avatarYinghai Lu <yhlu.kernel@gmail.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 2313c279

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

+11 −3
Original line number Diff line number Diff line
@@ -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;

	}