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prefetch_tuning
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前往新版Gitcode,体验更适合开发者的 AI 搜索 >>
提交
75ff91d9
编写于
7月 02, 2020
作者:
L
liqiang
浏览文件
操作
浏览文件
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电子邮件补丁
差异文件
Code specification.
上级
1a5b2037
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
12 addition
and
11 deletion
+12
-11
prefetch_mod.c
prefetch_mod.c
+9
-8
prefetch_mod.h
prefetch_mod.h
+1
-2
prefetch_reg.c
prefetch_reg.c
+2
-1
未找到文件。
prefetch_mod.c
浏览文件 @
75ff91d9
...
...
@@ -83,7 +83,7 @@ static struct miscdevice misc = {
static
ssize_t
read_unique_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
)
{
ssize_t
ret
;
ssize_t
ret
=
-
1
;
int
value
=
-
1
;
ret
=
kstrtouint
(
buf
,
0
,
&
value
);
...
...
@@ -102,7 +102,7 @@ static ssize_t read_unique_store(struct device* dev,
static
ssize_t
read_unique_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
)
{
int
cpu
;
int
cpu
=
-
1
;
int
count
=
0
;
int
__percpu
*
cur
=
alloc_percpu
(
int
);
...
...
@@ -127,7 +127,7 @@ static ssize_t read_unique_show(struct device* dev,
static
ssize_t
prefetch_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
)
{
ssize_t
ret
;
ssize_t
ret
=
-
1
;
int
policy
=
-
1
;
ret
=
kstrtouint
(
buf
,
0
,
&
policy
);
...
...
@@ -150,7 +150,8 @@ static ssize_t prefetch_store(struct device* dev,
static
ssize_t
prefetch_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
)
{
int
cpu
,
policy
;
int
cpu
=
-
1
;
int
policy
=
-
1
;
int
count
=
0
;
mutex_lock
(
&
prefetch_mtx
);
...
...
@@ -172,7 +173,7 @@ static ssize_t prefetch_show(struct device* dev,
static
ssize_t
prefetch_mask_store
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
const
char
*
buf
,
size_t
count
)
{
int
ret
;
int
ret
=
-
1
;
mutex_lock
(
&
prefetch_mtx
);
ret
=
cpulist_parse
(
buf
,
prefetch_cpumask_value
);
...
...
@@ -194,7 +195,7 @@ prefetch_mask_end:
static
ssize_t
prefetch_mask_show
(
struct
device
*
dev
,
struct
device_attribute
*
attr
,
char
*
buf
)
{
ssize_t
ret
;
ssize_t
ret
=
-
1
;
mutex_lock
(
&
prefetch_mtx
);
ret
=
cpumap_print_to_pagebuf
(
true
,
buf
,
prefetch_cpumask_value
);
mutex_unlock
(
&
prefetch_mtx
);
...
...
@@ -209,8 +210,8 @@ static ssize_t prefetch_mask_show(struct device* dev,
static
int
__init
prefetch_init
(
void
)
{
int
ret
;
int
cpu
;
int
ret
=
-
1
;
int
cpu
=
-
1
;
/* mask: initial a mask */
if
(
!
alloc_cpumask_var
(
&
prefetch_cpumask_value
,
GFP_KERNEL
))
{
ret
=
-
ENOMEM
;
...
...
prefetch_mod.h
浏览文件 @
75ff91d9
...
...
@@ -6,8 +6,7 @@ enum {
ENABLE
};
#define CACHE_READUNIQ_OFFSET 40
#define CACHE_READUNIQ_CTRL (1L << CACHE_READUNIQ_OFFSET)
#define CACHE_READUNIQ_CTRL (1L << 40)
#ifdef CONFIG_ARCH_HISI
typedef
struct
{
...
...
prefetch_reg.c
浏览文件 @
75ff91d9
...
...
@@ -118,11 +118,12 @@ void read_unique_set(void *dummy)
return
;
}
static
const
u64
readUniqueOffset
=
40
;
void
read_unique_get
(
void
*
dummy
)
{
int
*
value
=
this_cpu_ptr
((
int
__percpu
*
)
dummy
);
u64
reg_value
=
read_sysreg
(
S3_1_c15_c6_4
);
*
value
=
(
reg_value
>>
CACHE_READUNIQ_OFFSET
)
&
0x1
;
*
value
=
(
reg_value
>>
readUniqueOffset
)
&
0x1
;
return
;
}
#else
...
...
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