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amd-gpu: remove device_clock ioctl

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No userspace users except a reference in libkgsl.so which is never called.

kgsl_device_clock() is left in (but preprocessed out) since it has a fairly
interesting behavior in turning the autogating on and off which is not the
same as turning the actual clocks on and off and could be useful with
modification for further refinement of power management at a later date.
This commit is contained in:
Matt Sealey
2012-12-10 18:11:27 -06:00
parent d09ae76082
commit 95b52ba9b3
4 changed files with 2 additions and 22 deletions
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15
drivers/mxc/amd-gpu/gsl_kmod.c
View File

@@ -634,21 +634,6 @@ static int gsl_kmod_ioctl(struct inode *inode, struct file *fd, unsigned int cmd
kgslStatus = kgsl_sharedmem_fromhostpointer(param.device_id, &memdesc, param.hostptr);
break;
}
case IOCTL_KGSL_DEVICE_CLOCK:
{
kgsl_device_clock_t param;
#if defined(GSL_IOCTL_DEBUG)
printk(KERN_INFO "--> %s: IOCTL_KGSL_DEVICE_CLOCK\n", __func__);
#endif
if (copy_from_user(&param, (void __user *)arg, sizeof(kgsl_device_clock_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_device_clock(param.device, param.enable);
break;
}
default:
kgslStatus = -ENOTTY;
break;

1
drivers/mxc/amd-gpu/include/gsl_device.h
View File

@@ -119,7 +119,6 @@ int kgsl_g12_getfunctable(gsl_functable_t *ftbl);
int kgsl_clock(gsl_deviceid_t dev, int enable);
int kgsl_device_active(gsl_device_t *dev);
int kgsl_device_clock(gsl_deviceid_t id, int enable);
int kgsl_device_autogate_init(gsl_device_t *dev);
void kgsl_device_autogate_exit(gsl_device_t *dev);

6
drivers/mxc/amd-gpu/include/gsl_ioctl.h
View File

@@ -182,11 +182,6 @@ typedef struct _kgsl_sharedmem_fromhostpointer_t {
void *hostptr;
} kgsl_sharedmem_fromhostpointer_t;
typedef struct _kgsl_device_clock_t {
gsl_deviceid_t device; /* GSL_DEVICE_YAMATO = 1, GSL_DEVICE_G12 = 2 */
int enable; /* 0: disable, 1: enable */
} kgsl_device_clock_t;
//////////////////////////////////////////////////////////////////////////////
// ioctl numbers
//////////////////////////////////////////////////////////////////////////////
@@ -216,7 +211,6 @@ typedef struct _kgsl_device_clock_t {
#define IOCTL_KGSL_SHAREDMEM_CACHEOPERATION _IOW(GSL_MAGIC, 0x37, struct _kgsl_sharedmem_cacheoperation_t)
#define IOCTL_KGSL_SHAREDMEM_FROMHOSTPOINTER _IOW(GSL_MAGIC, 0x38, struct _kgsl_sharedmem_fromhostpointer_t)
#define IOCTL_KGSL_DRIVER_EXIT _IOWR(GSL_MAGIC, 0x3A, NULL)
#define IOCTL_KGSL_DEVICE_CLOCK _IOWR(GSL_MAGIC, 0x60, struct _kgsl_device_clock_t)
#endif

2
drivers/mxc/amd-gpu/misc.c
View File

@@ -108,6 +108,7 @@ static void kgsl_device_inactive(unsigned long data)
spin_unlock_irqrestore(&autogate->lock, flags);
}
#if 0
int kgsl_device_clock(gsl_deviceid_t id, int enable)
{
int ret = GSL_SUCCESS;
@@ -126,6 +127,7 @@ int kgsl_device_clock(gsl_deviceid_t id, int enable)
return ret;
}
#endif
int kgsl_device_autogate_init(gsl_device_t *dev)
{