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Add some sysctl info so that we can see what is going on with vblanks.

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MFC after:	3 days
This commit is contained in:
Robert Noland 2009-06-23 20:19:02 +00:00
parent ea158edaa6
commit abcd328be6
1 changed files with 24 additions and 0 deletions
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24
sys/dev/drm/drm_sysctl.c
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@ -38,6 +38,7 @@ static int drm_name_info DRM_SYSCTL_HANDLER_ARGS;
static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS;
static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS;
static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS;
static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS;
struct drm_sysctl_list {
const char *name;
@ -47,6 +48,7 @@ struct drm_sysctl_list {
{"vm", drm_vm_info},
{"clients", drm_clients_info},
{"bufs", drm_bufs_info},
{"vblank", drm_vblank_info},
};
#define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0]))
@ -313,3 +315,25 @@ static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS
free(tempprivs, DRM_MEM_DRIVER);
return retcode;
}
static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS
{
struct drm_device *dev = arg1;
char buf[128];
int retcode;
int i;
DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n");
for(i = 0 ; i < dev->num_crtcs ; i++) {
DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n",
i, atomic_load_acq_32(&dev->vblank[i].refcount),
atomic_load_acq_32(&dev->vblank[i].count),
atomic_load_acq_32(&dev->vblank[i].last),
atomic_load_acq_int(&dev->vblank[i].enabled),
atomic_load_acq_int(&dev->vblank[i].inmodeset));
}
SYSCTL_OUT(req, "", -1);
done:
return retcode;
}