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Commit ad7dd338 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Kyle McMartin
Browse files

[PARISC] move PA perf driver over to ->compat_ioctl 



Move PA perf driver over to ->compat_ioctl.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Acked-by: default avatarRandolph Chung <tausq@parisc-linux.org>
Signed-off-by: default avatarKyle McMartin <kyle@parisc-linux.org>
parent a137ce85

arch/parisc/kernel/ioctl32.c

+0 −5
Original line number Diff line number Diff line
@@ -561,11 +561,6 @@ IOCTL_TABLE_START 
#define DECLARES

#include "compat_ioctl.c"



/* PA-specific ioctls */

COMPATIBLE_IOCTL(PA_PERF_ON)

COMPATIBLE_IOCTL(PA_PERF_OFF)

COMPATIBLE_IOCTL(PA_PERF_VERSION)



/* And these ioctls need translation */

HANDLE_IOCTL(SIOCGPPPSTATS, dev_ifsioc)

HANDLE_IOCTL(SIOCGPPPCSTATS, dev_ifsioc)

arch/parisc/kernel/perf.c

+20 −13
Original line number Diff line number Diff line
@@ -196,8 +196,7 @@ static int perf_open(struct inode *inode, struct file *file); 
static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos);

static ssize_t perf_write(struct file *file, const char __user *buf, size_t count, 

	loff_t *ppos);

static int perf_ioctl(struct inode *inode, struct file *file, unsigned int cmd,

	unsigned long arg);

static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg);

static void perf_start_counters(void);

static int perf_stop_counters(uint32_t *raddr);

static struct rdr_tbl_ent * perf_rdr_get_entry(uint32_t rdr_num);
@@ -438,48 +437,56 @@ static void perf_patch_images(void) 
 * must be running on the processor that you wish to change.

 */



static int perf_ioctl(struct inode *inode, struct file *file, unsigned int cmd,

	unsigned long arg)

static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)

{

	long error_start;

	uint32_t raddr[4];

	int error = 0;



	lock_kernel();

	switch (cmd) {



	    case PA_PERF_ON:

			/* Start the counters */

			perf_start_counters();

			return 0;

			break;



	    case PA_PERF_OFF:

			error_start = perf_stop_counters(raddr);

			if (error_start != 0) {

				printk(KERN_ERR "perf_off: perf_stop_counters = %ld\n", error_start);

				return -EFAULT;	

				error = -EFAULT;

				break;

			}



			/* copy out the Counters */

			if (copy_to_user((void __user *)arg, raddr, 

					sizeof (raddr)) != 0) {

				return -EFAULT;

				error =  -EFAULT;

				break;

			}

			return 0;

			break;



	    case PA_PERF_VERSION:

  	  		/* Return the version # */

			return put_user(PERF_VERSION, (int *)arg);

			error = put_user(PERF_VERSION, (int *)arg);

			break;



	    default:

  	 		break;

  	 		error = -ENOTTY;

	}

	return -ENOTTY;



	unlock_kernel();



	return error;

}



static struct file_operations perf_fops = {

	.llseek = no_llseek,

	.read = perf_read,

	.write = perf_write,

	.ioctl = perf_ioctl,

	.unlocked_ioctl = perf_ioctl,

	.compat_ioctl = perf_ioctl,

	.open = perf_open,

	.release = perf_release

};