diff options
Diffstat (limited to 'drivers/char/drm/radeon_irq.c')
| -rw-r--r-- | drivers/char/drm/radeon_irq.c | 127 |
1 files changed, 63 insertions, 64 deletions
diff --git a/drivers/char/drm/radeon_irq.c b/drivers/char/drm/radeon_irq.c index 40474a65f56d..d60519de887b 100644 --- a/drivers/char/drm/radeon_irq.c +++ b/drivers/char/drm/radeon_irq.c @@ -1,7 +1,7 @@ /* radeon_irq.c -- IRQ handling for radeon -*- linux-c -*- * * Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. - * + * * The Weather Channel (TM) funded Tungsten Graphics to develop the * initial release of the Radeon 8500 driver under the XFree86 license. * This notice must be preserved. @@ -35,7 +35,8 @@ #include "radeon_drm.h" #include "radeon_drv.h" -static __inline__ u32 radeon_acknowledge_irqs(drm_radeon_private_t *dev_priv, u32 mask) +static __inline__ u32 radeon_acknowledge_irqs(drm_radeon_private_t * dev_priv, + u32 mask) { u32 irqs = RADEON_READ(RADEON_GEN_INT_STATUS) & mask; if (irqs) @@ -61,37 +62,37 @@ static __inline__ u32 radeon_acknowledge_irqs(drm_radeon_private_t *dev_priv, u3 * tied to dma at all, this is just a hangover from dri prehistory. */ -irqreturn_t radeon_driver_irq_handler( DRM_IRQ_ARGS ) +irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS) { drm_device_t *dev = (drm_device_t *) arg; - drm_radeon_private_t *dev_priv = - (drm_radeon_private_t *)dev->dev_private; - u32 stat; + drm_radeon_private_t *dev_priv = + (drm_radeon_private_t *) dev->dev_private; + u32 stat; /* Only consider the bits we're interested in - others could be used * outside the DRM */ - stat = radeon_acknowledge_irqs(dev_priv, (RADEON_SW_INT_TEST_ACK | + stat = radeon_acknowledge_irqs(dev_priv, (RADEON_SW_INT_TEST_ACK | RADEON_CRTC_VBLANK_STAT)); if (!stat) return IRQ_NONE; /* SW interrupt */ if (stat & RADEON_SW_INT_TEST) { - DRM_WAKEUP( &dev_priv->swi_queue ); + DRM_WAKEUP(&dev_priv->swi_queue); } /* VBLANK interrupt */ if (stat & RADEON_CRTC_VBLANK_STAT) { atomic_inc(&dev->vbl_received); DRM_WAKEUP(&dev->vbl_queue); - drm_vbl_send_signals( dev ); + drm_vbl_send_signals(dev); } return IRQ_HANDLED; } -static int radeon_emit_irq(drm_device_t *dev) +static int radeon_emit_irq(drm_device_t * dev) { drm_radeon_private_t *dev_priv = dev->dev_private; unsigned int ret; @@ -100,42 +101,41 @@ static int radeon_emit_irq(drm_device_t *dev) atomic_inc(&dev_priv->swi_emitted); ret = atomic_read(&dev_priv->swi_emitted); - BEGIN_RING( 4 ); - OUT_RING_REG( RADEON_LAST_SWI_REG, ret ); - OUT_RING_REG( RADEON_GEN_INT_STATUS, RADEON_SW_INT_FIRE ); - ADVANCE_RING(); - COMMIT_RING(); + BEGIN_RING(4); + OUT_RING_REG(RADEON_LAST_SWI_REG, ret); + OUT_RING_REG(RADEON_GEN_INT_STATUS, RADEON_SW_INT_FIRE); + ADVANCE_RING(); + COMMIT_RING(); return ret; } - -static int radeon_wait_irq(drm_device_t *dev, int swi_nr) +static int radeon_wait_irq(drm_device_t * dev, int swi_nr) { - drm_radeon_private_t *dev_priv = - (drm_radeon_private_t *)dev->dev_private; + drm_radeon_private_t *dev_priv = + (drm_radeon_private_t *) dev->dev_private; int ret = 0; - if (RADEON_READ( RADEON_LAST_SWI_REG ) >= swi_nr) - return 0; + if (RADEON_READ(RADEON_LAST_SWI_REG) >= swi_nr) + return 0; dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE; - DRM_WAIT_ON( ret, dev_priv->swi_queue, 3 * DRM_HZ, - RADEON_READ( RADEON_LAST_SWI_REG ) >= swi_nr ); + DRM_WAIT_ON(ret, dev_priv->swi_queue, 3 * DRM_HZ, + RADEON_READ(RADEON_LAST_SWI_REG) >= swi_nr); return ret; } -int radeon_driver_vblank_wait(drm_device_t *dev, unsigned int *sequence) +int radeon_driver_vblank_wait(drm_device_t * dev, unsigned int *sequence) { - drm_radeon_private_t *dev_priv = - (drm_radeon_private_t *)dev->dev_private; + drm_radeon_private_t *dev_priv = + (drm_radeon_private_t *) dev->dev_private; unsigned int cur_vblank; int ret = 0; - if ( !dev_priv ) { - DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ ); + if (!dev_priv) { + DRM_ERROR("%s called with no initialization\n", __FUNCTION__); return DRM_ERR(EINVAL); } @@ -145,101 +145,100 @@ int radeon_driver_vblank_wait(drm_device_t *dev, unsigned int *sequence) /* 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... + * using vertical blanks... */ - DRM_WAIT_ON( ret, dev->vbl_queue, 3*DRM_HZ, - ( ( ( cur_vblank = atomic_read(&dev->vbl_received ) ) - - *sequence ) <= (1<<23) ) ); + DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ, + (((cur_vblank = atomic_read(&dev->vbl_received)) + - *sequence) <= (1 << 23))); *sequence = cur_vblank; return ret; } - /* Needs the lock as it touches the ring. */ -int radeon_irq_emit( DRM_IOCTL_ARGS ) +int radeon_irq_emit(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_radeon_private_t *dev_priv = dev->dev_private; drm_radeon_irq_emit_t emit; int result; - LOCK_TEST_WITH_RETURN( dev, filp ); + LOCK_TEST_WITH_RETURN(dev, filp); - if ( !dev_priv ) { - DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ ); + if (!dev_priv) { + DRM_ERROR("%s called with no initialization\n", __FUNCTION__); return DRM_ERR(EINVAL); } - DRM_COPY_FROM_USER_IOCTL( emit, (drm_radeon_irq_emit_t __user *)data, - sizeof(emit) ); + DRM_COPY_FROM_USER_IOCTL(emit, (drm_radeon_irq_emit_t __user *) data, + sizeof(emit)); - result = radeon_emit_irq( dev ); + result = radeon_emit_irq(dev); - if ( DRM_COPY_TO_USER( emit.irq_seq, &result, sizeof(int) ) ) { - DRM_ERROR( "copy_to_user\n" ); + if (DRM_COPY_TO_USER(emit.irq_seq, &result, sizeof(int))) { + DRM_ERROR("copy_to_user\n"); return DRM_ERR(EFAULT); } return 0; } - /* Doesn't need the hardware lock. */ -int radeon_irq_wait( DRM_IOCTL_ARGS ) +int radeon_irq_wait(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_radeon_private_t *dev_priv = dev->dev_private; drm_radeon_irq_wait_t irqwait; - if ( !dev_priv ) { - DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ ); + if (!dev_priv) { + DRM_ERROR("%s called with no initialization\n", __FUNCTION__); return DRM_ERR(EINVAL); } - DRM_COPY_FROM_USER_IOCTL( irqwait, (drm_radeon_irq_wait_t __user*)data, - sizeof(irqwait) ); + DRM_COPY_FROM_USER_IOCTL(irqwait, (drm_radeon_irq_wait_t __user *) data, + sizeof(irqwait)); - return radeon_wait_irq( dev, irqwait.irq_seq ); + return radeon_wait_irq(dev, irqwait.irq_seq); } - /* drm_dma.h hooks */ -void radeon_driver_irq_preinstall( drm_device_t *dev ) { +void radeon_driver_irq_preinstall(drm_device_t * dev) +{ drm_radeon_private_t *dev_priv = - (drm_radeon_private_t *)dev->dev_private; + (drm_radeon_private_t *) dev->dev_private; - /* Disable *all* interrupts */ - RADEON_WRITE( RADEON_GEN_INT_CNTL, 0 ); + /* Disable *all* interrupts */ + RADEON_WRITE(RADEON_GEN_INT_CNTL, 0); /* Clear bits if they're already high */ radeon_acknowledge_irqs(dev_priv, (RADEON_SW_INT_TEST_ACK | RADEON_CRTC_VBLANK_STAT)); } -void radeon_driver_irq_postinstall( drm_device_t *dev ) { +void radeon_driver_irq_postinstall(drm_device_t * dev) +{ drm_radeon_private_t *dev_priv = - (drm_radeon_private_t *)dev->dev_private; + (drm_radeon_private_t *) dev->dev_private; - atomic_set(&dev_priv->swi_emitted, 0); - DRM_INIT_WAITQUEUE( &dev_priv->swi_queue ); + atomic_set(&dev_priv->swi_emitted, 0); + DRM_INIT_WAITQUEUE(&dev_priv->swi_queue); /* Turn on SW and VBL ints */ - RADEON_WRITE( RADEON_GEN_INT_CNTL, - RADEON_CRTC_VBLANK_MASK | - RADEON_SW_INT_ENABLE ); + RADEON_WRITE(RADEON_GEN_INT_CNTL, + RADEON_CRTC_VBLANK_MASK | RADEON_SW_INT_ENABLE); } -void radeon_driver_irq_uninstall( drm_device_t *dev ) { +void radeon_driver_irq_uninstall(drm_device_t * dev) +{ drm_radeon_private_t *dev_priv = - (drm_radeon_private_t *)dev->dev_private; + (drm_radeon_private_t *) dev->dev_private; if (!dev_priv) return; /* Disable *all* interrupts */ - RADEON_WRITE( RADEON_GEN_INT_CNTL, 0 ); + RADEON_WRITE(RADEON_GEN_INT_CNTL, 0); } |
