dev/drm/via_irq.c

104 	drm_via_private_t *dev_priv = dev->dev_private;
108 	return atomic_read(&dev_priv->vbl_received);
114 	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
118 	drm_via_irq_t *cur_irq = dev_priv->via_irqs;
123 		atomic_inc(&dev_priv->vbl_received);
124 		if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) {
126 			if (dev_priv->last_vblank_valid) {
127 				dev_priv->usec_per_vblank =
129 						  &dev_priv->last_vblank) >> 4;
131 			dev_priv->last_vblank = cur_vblank;
132 			dev_priv->last_vblank_valid = 1;
134 		if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) {
136 				  dev_priv->usec_per_vblank);
142 	for (i = 0; i < dev_priv->num_irqs; ++i) {
147 			if (dev_priv->irq_map[drm_via_irq_dma0_td] == i) {
149 			} else if (dev_priv->irq_map[drm_via_irq_dma1_td] == i) {
166 static __inline__ void viadrv_acknowledge_irqs(drm_via_private_t * dev_priv)
170 	if (dev_priv) {
174 			  dev_priv->irq_pending_mask);
180 	drm_via_private_t *dev_priv = dev->dev_private;
199 	drm_via_private_t *dev_priv = dev->dev_private;
212 	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
221 	if (!dev_priv) {
231 	real_irq = dev_priv->irq_map[irq];
239 	masks = dev_priv->irq_masks;
240 	cur_irq = dev_priv->via_irqs + real_irq;
264 	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
269 	DRM_DEBUG("dev_priv: %p\n", dev_priv);
270 	if (dev_priv) {
271 		cur_irq = dev_priv->via_irqs;
273 		dev_priv->irq_enable_mask = VIA_IRQ_VBLANK_ENABLE;
274 		dev_priv->irq_pending_mask = VIA_IRQ_VBLANK_PENDING;
276 		if (dev_priv->chipset == VIA_PRO_GROUP_A ||
277 		    dev_priv->chipset == VIA_DX9_0) {
278 			dev_priv->irq_masks = via_pro_group_a_irqs;
279 			dev_priv->num_irqs = via_num_pro_group_a;
280 			dev_priv->irq_map = via_irqmap_pro_group_a;
282 			dev_priv->irq_masks = via_unichrome_irqs;
283 			dev_priv->num_irqs = via_num_unichrome;
284 			dev_priv->irq_map = via_irqmap_unichrome;
287 		for (i = 0; i < dev_priv->num_irqs; ++i) {
289 			cur_irq->enable_mask = dev_priv->irq_masks[i][0];
290 			cur_irq->pending_mask = dev_priv->irq_masks[i][1];
292 			dev_priv->irq_enable_mask |= cur_irq->enable_mask;
293 			dev_priv->irq_pending_mask |= cur_irq->pending_mask;
299 		dev_priv->last_vblank_valid = 0;
304 			  ~(dev_priv->irq_enable_mask));
307 		viadrv_acknowledge_irqs(dev_priv);
313 	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
317 	if (!dev_priv)
322 		  | dev_priv->irq_enable_mask);
333 	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
337 	if (dev_priv) {
346 			  ~(VIA_IRQ_VBLANK_ENABLE | dev_priv->irq_enable_mask));
355 	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
356 	drm_via_irq_t *cur_irq = dev_priv->via_irqs;
359 	if (irqwait->request.irq >= dev_priv->num_irqs) {