diff options
Diffstat (limited to 'nx-X11/extras/drm/shared/i915_irq.c')
| -rw-r--r-- | nx-X11/extras/drm/shared/i915_irq.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/nx-X11/extras/drm/shared/i915_irq.c b/nx-X11/extras/drm/shared/i915_irq.c deleted file mode 100644 index de91aba58..000000000 --- a/nx-X11/extras/drm/shared/i915_irq.c +++ /dev/null @@ -1,165 +0,0 @@ -/* i915_dma.c -- DMA support for the I915 -*- linux-c -*- - */ -/************************************************************************** - * - * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - **************************************************************************/ - -#include "i915.h" -#include "drmP.h" -#include "drm.h" -#include "i915_drm.h" -#include "i915_drv.h" - -#define USER_INT_FLAG 0x2 -#define MAX_NOPID ((u32)~0) -#define READ_BREADCRUMB(dev_priv) (((u32*)(dev_priv->hw_status_page))[5]) - -irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) -{ - drm_device_t *dev = (drm_device_t *) arg; - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - u16 temp; - - temp = I915_READ16(I915REG_INT_IDENTITY_R); - temp &= USER_INT_FLAG; - - DRM_DEBUG("%s flag=%08x\n", __FUNCTION__, temp); - - if (temp == 0) - return IRQ_NONE; - - I915_WRITE16(I915REG_INT_IDENTITY_R, temp); - DRM_WAKEUP(&dev_priv->irq_queue); - - return IRQ_HANDLED; -} - -int i915_emit_irq(drm_device_t * dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - u32 ret; - RING_LOCALS; - - i915_kernel_lost_context(dev); - - DRM_DEBUG("%s\n", __FUNCTION__); - - ret = dev_priv->counter; - - BEGIN_LP_RING(2); - OUT_RING(0); - OUT_RING(GFX_OP_USER_INTERRUPT); - ADVANCE_LP_RING(); - - return ret; -} - -int i915_wait_irq(drm_device_t * dev, int irq_nr) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - int ret = 0; - - DRM_DEBUG("%s irq_nr=%d breadcrumb=%d\n", __FUNCTION__, irq_nr, - READ_BREADCRUMB(dev_priv)); - - if (READ_BREADCRUMB(dev_priv) >= irq_nr) - return 0; - - dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT; - - DRM_WAIT_ON(ret, dev_priv->irq_queue, 3 * DRM_HZ, - READ_BREADCRUMB(dev_priv) >= irq_nr); - - if (ret == DRM_ERR(EBUSY)) { - DRM_ERROR("%s: EBUSY -- rec: %d emitted: %d\n", - __FUNCTION__, - READ_BREADCRUMB(dev_priv), (int)dev_priv->counter); - } - - dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); - return ret; -} - -/* Needs the lock as it touches the ring. - */ -int i915_irq_emit(DRM_IOCTL_ARGS) -{ - DRM_DEVICE; - drm_i915_private_t *dev_priv = dev->dev_private; - drm_i915_irq_emit_t emit; - int result; - - if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) { - DRM_ERROR("i915_irq_emit called without lock held\n"); - return DRM_ERR(EINVAL); - } - - if (!dev_priv) { - DRM_ERROR("%s called with no initialization\n", __FUNCTION__); - return DRM_ERR(EINVAL); - } - - DRM_COPY_FROM_USER_IOCTL(emit, (drm_i915_irq_emit_t __user *) data, - sizeof(emit)); - - result = i915_emit_irq(dev); - - 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 i915_irq_wait(DRM_IOCTL_ARGS) -{ - DRM_DEVICE; - drm_i915_private_t *dev_priv = dev->dev_private; - drm_i915_irq_wait_t irqwait; - - if (!dev_priv) { - DRM_ERROR("%s called with no initialization\n", __FUNCTION__); - return DRM_ERR(EINVAL); - } - - DRM_COPY_FROM_USER_IOCTL(irqwait, (drm_i915_irq_wait_t __user *) data, - sizeof(irqwait)); - - return i915_wait_irq(dev, irqwait.irq_seq); -} - -/* drm_dma.h hooks -*/ -void i915_driver_irq_preinstall(drm_device_t * dev) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - - I915_WRITE16(I915REG_HWSTAM, 0xfffe); - I915_WRITE16(I915REG_INT_MASK_R, 0x0); - I915_WRITE16(I915REG_INT_ENABLE_R, 0x0); -} - -void i915_driver_irq_postinstall(drm_device_t * dev) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - - I915_WRITE16(I915REG_INT_ENABLE_R, USER_INT_FLAG); - DRM_INIT_WAITQUEUE(&dev_priv->irq_queue); -} - -void i915_driver_irq_uninstall(drm_device_t * dev) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - if (!dev_priv) - return; - - I915_WRITE16(I915REG_HWSTAM, 0xffff); - I915_WRITE16(I915REG_INT_MASK_R, 0xffff); - I915_WRITE16(I915REG_INT_ENABLE_R, 0x0); -} |