AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

x86: Further clean up of mtrr/generic.c

Browse Source 
Yinghai noticed that i defined BIOS_BUG_MSG but added no
usage for it. The usage is to clean up this turd in generic.c:

			printk(KERN_WARNING "WARNING: BIOS bug: VAR MTRR %d "
				"contains strange UC entry under 1M, check "
				"with your system vendor!\n", i);

Breaking printk lines in the middle looks ugly, is hard to read
and breaks 'git grep'. Use the BIOS_BUG_MSG instead.

Also complete the moving of structure definitions and variables
to the top of the file.

Reported-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <20090703164225.GA21447@elte.hu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2009-07-05 09:44:11 +02:00
parent dbd51be026
commit e3d0e69268
1 changed files with 27 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
arch/x86/kernel/cpu/mtrr/cleanup.c
View File

@ -34,14 +34,37 @@
#include "mtrr.h"
/* Should be related to MTRR_VAR_RANGES nums */
#define RANGE_NUM 256
struct res_range {
unsigned long start;
unsigned long end;
};
struct var_mtrr_range_state {
unsigned long base_pfn;
unsigned long size_pfn;
mtrr_type type;
};
struct var_mtrr_state {
unsigned long range_startk;
unsigned long range_sizek;
unsigned long chunk_sizek;
unsigned long gran_sizek;
unsigned int reg;
};
/* Should be related to MTRR_VAR_RANGES nums */
#define RANGE_NUM 256
static struct res_range __initdata range[RANGE_NUM];
static int __initdata nr_range;
static struct var_mtrr_range_state __initdata range_state[RANGE_NUM];
static int __initdata debug_print;
#define Dprintk(x...) do { if (debug_print) printk(KERN_DEBUG x); } while (0)
static int __init
add_range(struct res_range *range, int nr_range,
unsigned long start, unsigned long end)
@ -147,18 +170,6 @@ static int __init cmp_range(const void *x1, const void *x2)
return start1 - start2;
}
struct var_mtrr_range_state {
unsigned long base_pfn;
unsigned long size_pfn;
mtrr_type type;
};
static struct var_mtrr_range_state __initdata range_state[RANGE_NUM];
static int __initdata debug_print;
#define Dprintk(x...) do { if (debug_print) printk(KERN_DEBUG x); } while (0)
#define BIOS_BUG_MSG KERN_WARNING \
"WARNING: BIOS bug: VAR MTRR %d contains strange UC entry under 1M, check with your system vendor!\n"
@ -200,9 +211,7 @@ x86_get_mtrr_mem_range(struct res_range *range, int nr_range,
if (base < (1<<(20-PAGE_SHIFT)) && mtrr_state.have_fixed &&
(mtrr_state.enabled & 1)) {
/* Var MTRR contains UC entry below 1M? Skip it: */
printk(KERN_WARNING "WARNING: BIOS bug: VAR MTRR %d "
"contains strange UC entry under 1M, check "
"with your system vendor!\n", i);
printk(BIOS_BUG_MSG, i);
if (base + size <= (1<<(20-PAGE_SHIFT)))
continue;
size -= (1<<(20-PAGE_SHIFT)) - base;
@ -244,9 +253,6 @@ x86_get_mtrr_mem_range(struct res_range *range, int nr_range,
return nr_range;
}
static struct res_range __initdata range[RANGE_NUM];
static int __initdata nr_range;
#ifdef CONFIG_MTRR_SANITIZER
static unsigned long __init sum_ranges(struct res_range *range, int nr_range)
@ -284,14 +290,6 @@ static int __init mtrr_cleanup_debug_setup(char *str)
}
early_param("mtrr_cleanup_debug", mtrr_cleanup_debug_setup);
struct var_mtrr_state {
unsigned long range_startk;
unsigned long range_sizek;
unsigned long chunk_sizek;
unsigned long gran_sizek;
unsigned int reg;
};
static void __init
set_var_mtrr(unsigned int reg, unsigned long basek, unsigned long sizek,
unsigned char type, unsigned int address_bits)