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path: root/nx-X11/extras/drm/shared/i915_irq.c
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Diffstat (limited to 'nx-X11/extras/drm/shared/i915_irq.c')
-rw-r--r--nx-X11/extras/drm/shared/i915_irq.c165
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);
-}