diff options
Diffstat (limited to 'drivers/gpu/drm/r128/r128_irq.c')
| -rw-r--r-- | drivers/gpu/drm/r128/r128_irq.c | 66 |
1 files changed, 40 insertions, 26 deletions
diff --git a/drivers/gpu/drm/r128/r128_irq.c b/drivers/gpu/drm/r128/r128_irq.c index c76fdca7662..c2ae496babb 100644 --- a/drivers/gpu/drm/r128/r128_irq.c +++ b/drivers/gpu/drm/r128/r128_irq.c @@ -30,12 +30,21 @@ * Eric Anholt <anholt@FreeBSD.org> */ -#include "drmP.h" -#include "drm.h" -#include "r128_drm.h" +#include <drm/drmP.h> +#include <drm/r128_drm.h> #include "r128_drv.h" -irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) +u32 r128_get_vblank_counter(struct drm_device *dev, int crtc) +{ + const drm_r128_private_t *dev_priv = dev->dev_private; + + if (crtc != 0) + return 0; + + return atomic_read(&dev_priv->vbl_received); +} + +irqreturn_t r128_driver_irq_handler(int irq, void *arg) { struct drm_device *dev = (struct drm_device *) arg; drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; @@ -46,33 +55,41 @@ irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) /* VBLANK interrupt */ if (status & R128_CRTC_VBLANK_INT) { R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK); - atomic_inc(&dev->vbl_received); - DRM_WAKEUP(&dev->vbl_queue); - drm_vbl_send_signals(dev); + atomic_inc(&dev_priv->vbl_received); + drm_handle_vblank(dev, 0); return IRQ_HANDLED; } return IRQ_NONE; } -int r128_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence) +int r128_enable_vblank(struct drm_device *dev, int crtc) { - unsigned int cur_vblank; - int ret = 0; + drm_r128_private_t *dev_priv = dev->dev_private; - /* Assume that the user has missed the current sequence number - * by about a day rather than she wants to wait for years - * using vertical blanks... - */ - DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ, - (((cur_vblank = atomic_read(&dev->vbl_received)) - - *sequence) <= (1 << 23))); + if (crtc != 0) { + DRM_ERROR("%s: bad crtc %d\n", __func__, crtc); + return -EINVAL; + } - *sequence = cur_vblank; + R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN); + return 0; +} + +void r128_disable_vblank(struct drm_device *dev, int crtc) +{ + if (crtc != 0) + DRM_ERROR("%s: bad crtc %d\n", __func__, crtc); - return ret; + /* + * FIXME: implement proper interrupt disable by using the vblank + * counter register (if available) + * + * R128_WRITE(R128_GEN_INT_CNTL, + * R128_READ(R128_GEN_INT_CNTL) & ~R128_CRTC_VBLANK_INT_EN); + */ } -void r128_driver_irq_preinstall(struct drm_device * dev) +void r128_driver_irq_preinstall(struct drm_device *dev) { drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; @@ -82,15 +99,12 @@ void r128_driver_irq_preinstall(struct drm_device * dev) R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK); } -void r128_driver_irq_postinstall(struct drm_device * dev) +int r128_driver_irq_postinstall(struct drm_device *dev) { - drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; - - /* Turn on VBL interrupt */ - R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN); + return 0; } -void r128_driver_irq_uninstall(struct drm_device * dev) +void r128_driver_irq_uninstall(struct drm_device *dev) { drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; if (!dev_priv) |