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vblank-rework rework cleanups.

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Remove some dead/obsolete code and make drm_update_vblank_count() static.
This commit is contained in:
Michel Dänzer 2008-07-21 08:16:55 +02:00
parent 014935b680
commit 205aff6a5c
2 changed files with 4 additions and 30 deletions
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4
linux-core/drmP.h
View file

@ -848,9 +848,6 @@ struct drm_device {
atomic_t *vblank_refcount; /* number of users of vblank interrupts per crtc */
u32 *last_vblank; /* protected by dev->vbl_lock, used */
/* for wraparound handling */
int *vblank_enabled; /* so we don't call enable more than
once per disable */
u32 *vblank_premodeset; /* for compensation of spurious wraparounds */
int *vblank_inmodeset; /* Display driver is setting mode */
struct timer_list vblank_disable_timer;
@ -1153,7 +1150,6 @@ extern int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *
extern int drm_vblank_wait(struct drm_device * dev, unsigned int *vbl_seq);
extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*));
extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
extern void drm_update_vblank_count(struct drm_device *dev, int crtc);
extern void drm_handle_vblank(struct drm_device *dev, int crtc);
extern int drm_vblank_get(struct drm_device *dev, int crtc);
extern void drm_vblank_put(struct drm_device *dev, int crtc);

30
linux-core/drm_irq.c
View file

@ -82,13 +82,11 @@ static void vblank_disable_fn(unsigned long arg)
for (i = 0; i < dev->num_crtcs; i++) {
spin_lock_irqsave(&dev->vbl_lock, irqflags);
if (atomic_read(&dev->vblank_refcount[i]) == 0 &&
dev->vblank_enabled[i]) {
if (atomic_read(&dev->vblank_refcount[i]) == 0) {
DRM_DEBUG("disabling vblank on crtc %d\n", i);
dev->last_vblank[i] =
dev->driver->get_vblank_counter(dev, i);
dev->driver->disable_vblank(dev, i);
dev->vblank_enabled[i] = 0;
}
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
}
@ -112,12 +110,8 @@ static void drm_vblank_cleanup(struct drm_device *dev)
dev->num_crtcs, DRM_MEM_DRIVER);
drm_free(dev->vblank_refcount, sizeof(*dev->vblank_refcount) *
dev->num_crtcs, DRM_MEM_DRIVER);
drm_free(dev->vblank_enabled, sizeof(*dev->vblank_enabled) *
dev->num_crtcs, DRM_MEM_DRIVER);
drm_free(dev->last_vblank, sizeof(*dev->last_vblank) * dev->num_crtcs,
DRM_MEM_DRIVER);
drm_free(dev->vblank_premodeset, sizeof(*dev->vblank_premodeset) *
dev->num_crtcs, DRM_MEM_DRIVER);
drm_free(dev->vblank_inmodeset, sizeof(*dev->vblank_inmodeset) *
dev->num_crtcs, DRM_MEM_DRIVER);
@ -154,20 +148,10 @@ int drm_vblank_init(struct drm_device *dev, int num_crtcs)
if (!dev->vblank_refcount)
goto err;
dev->vblank_enabled = drm_calloc(num_crtcs, sizeof(int),
DRM_MEM_DRIVER);
if (!dev->vblank_enabled)
goto err;
dev->last_vblank = drm_calloc(num_crtcs, sizeof(u32), DRM_MEM_DRIVER);
if (!dev->last_vblank)
goto err;
dev->vblank_premodeset = drm_calloc(num_crtcs, sizeof(u32),
DRM_MEM_DRIVER);
if (!dev->vblank_premodeset)
goto err;
dev->vblank_inmodeset = drm_calloc(num_crtcs, sizeof(int),
DRM_MEM_DRIVER);
if (!dev->vblank_inmodeset)
@ -359,7 +343,7 @@ EXPORT_SYMBOL(drm_vblank_count);
* Note: caller must hold dev->vbl_lock since this reads & writes
* device vblank fields.
*/
void drm_update_vblank_count(struct drm_device *dev, int crtc)
static void drm_update_vblank_count(struct drm_device *dev, int crtc)
{
u32 cur_vblank, diff;
@ -385,7 +369,6 @@ void drm_update_vblank_count(struct drm_device *dev, int crtc)
} else {
diff = cur_vblank - dev->last_vblank[crtc];
}
dev->last_vblank[crtc] = cur_vblank;
DRM_DEBUG("enabling vblank interrupts on crtc %d, missed %d\n",
crtc, diff);
@ -411,15 +394,12 @@ int drm_vblank_get(struct drm_device *dev, int crtc)
spin_lock_irqsave(&dev->vbl_lock, irqflags);
/* Going from 0->1 means we have to enable interrupts again */
if (atomic_add_return(1, &dev->vblank_refcount[crtc]) == 1 &&
!dev->vblank_enabled[crtc]) {
if (atomic_add_return(1, &dev->vblank_refcount[crtc]) == 1) {
ret = dev->driver->enable_vblank(dev, crtc);
if (ret)
atomic_dec(&dev->vblank_refcount[crtc]);
else {
dev->vblank_enabled[crtc] = 1;
else
drm_update_vblank_count(dev, crtc);
}
}
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
@ -481,9 +461,7 @@ int drm_modeset_ctl(struct drm_device *dev, void *data,
switch (modeset->cmd) {
case _DRM_PRE_MODESET:
if (!dev->vblank_inmodeset[crtc]) {
spin_lock_irqsave(&dev->vbl_lock, irqflags);
dev->vblank_inmodeset[crtc] = 1;
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
drm_vblank_get(dev, crtc);
}
break;