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Commit 39a360ef authored by Sam bobroff's avatar Sam bobroff Committed by Benjamin Herrenschmidt
Browse files

powerpc: Split __SYSFS_SPRSETUP macro 



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: default avatarSam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent b717d985

arch/powerpc/kernel/sysfs.c

+13 −6
Original line number Original line Diff line number Diff line
@@ -404,7 +404,7 @@ void ppc_enable_pmcs(void) 
}

}

EXPORT_SYMBOL(ppc_enable_pmcs);

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) \

static void read_##NAME(void *val) \

{ \

{ \

	*(unsigned long *)val = mfspr(ADDRESS);	\

	*(unsigned long *)val = mfspr(ADDRESS);	\
@@ -413,7 +413,9 @@ static void write_##NAME(void *val) \ 
{ \

{ \

	EXTRA; \

	EXTRA; \

	mtspr(ADDRESS, *(unsigned long *)val);	\

	mtspr(ADDRESS, *(unsigned long *)val);	\

} \

}



#define __SYSFS_SPRSETUP_SHOW_STORE(NAME) \

static ssize_t show_##NAME(struct device *dev, \

static ssize_t show_##NAME(struct device *dev, \

			struct device_attribute *attr, \

			struct device_attribute *attr, \

			char *buf) \

			char *buf) \
@@ -437,9 +439,14 @@ static ssize_t __used \ 
}

}





#define SYSFS_PMCSETUP(NAME, ADDRESS) \

#define SYSFS_PMCSETUP(NAME, ADDRESS) \

	__SYSFS_SPRSETUP(NAME, ADDRESS, ppc_enable_pmcs())

	__SYSFS_SPRSETUP_READ_WRITE(NAME, ADDRESS, ppc_enable_pmcs()) \

	__SYSFS_SPRSETUP_SHOW_STORE(NAME)

#define SYSFS_SPRSETUP(NAME, ADDRESS) \

#define SYSFS_SPRSETUP(NAME, ADDRESS) \

	__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

/* Let's define all possible registers, we'll only hook up the ones

 * that are implemented on the current processor

 * that are implemented on the current processor