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powerpc: Split __SYSFS_SPRSETUP macro

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Split the __SYSFS_SPRSETUP macro into two parts so that registers requiring
custom read and write functions can use common code for their show and store
functions.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Sam bobroff 2014-05-21 16:32:37 +10:00 committed by Benjamin Herrenschmidt
parent b717d98543
commit 39a360ef72
1 changed files with 13 additions and 6 deletions
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19
arch/powerpc/kernel/sysfs.c
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@ -404,7 +404,7 @@ void ppc_enable_pmcs(void)
}
EXPORT_SYMBOL(ppc_enable_pmcs);
#define __SYSFS_SPRSETUP(NAME, ADDRESS, EXTRA) \
#define __SYSFS_SPRSETUP_READ_WRITE(NAME, ADDRESS, EXTRA) \
static void read_##NAME(void *val) \
{ \
*(unsigned long *)val = mfspr(ADDRESS); \
@ -413,7 +413,9 @@ static void write_##NAME(void *val) \
{ \
EXTRA; \
mtspr(ADDRESS, *(unsigned long *)val); \
} \
}
#define __SYSFS_SPRSETUP_SHOW_STORE(NAME) \
static ssize_t show_##NAME(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
@ -436,10 +438,15 @@ static ssize_t __used \
return count; \
}
#define SYSFS_PMCSETUP(NAME, ADDRESS) \
__SYSFS_SPRSETUP(NAME, ADDRESS, ppc_enable_pmcs())
#define SYSFS_SPRSETUP(NAME, ADDRESS) \
__SYSFS_SPRSETUP(NAME, ADDRESS, )
#define SYSFS_PMCSETUP(NAME, ADDRESS) \
__SYSFS_SPRSETUP_READ_WRITE(NAME, ADDRESS, ppc_enable_pmcs()) \
__SYSFS_SPRSETUP_SHOW_STORE(NAME)
#define SYSFS_SPRSETUP(NAME, ADDRESS) \
__SYSFS_SPRSETUP_READ_WRITE(NAME, ADDRESS, ) \
__SYSFS_SPRSETUP_SHOW_STORE(NAME)
#define SYSFS_SPRSETUP_SHOW_STORE(NAME) \
__SYSFS_SPRSETUP_SHOW_STORE(NAME)
/* Let's define all possible registers, we'll only hook up the ones
* that are implemented on the current processor