drm/i915: split irq handling into per-chipset functions
Set the IRQ handling functions in driver load so they'll just be used
directly, rather than branching over most of the code in the chipset
functions.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 5be2aa0..d967e17 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -462,8 +462,9 @@
DRM_DEBUG_DRIVER("PCH transcoder A underrun interrupt\n");
}
-static irqreturn_t ironlake_irq_handler(struct drm_device *dev)
+irqreturn_t ironlake_irq_handler(DRM_IRQ_ARGS)
{
+ struct drm_device *dev = (struct drm_device *) arg;
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
int ret = IRQ_NONE;
u32 de_iir, gt_iir, de_ier, pch_iir, pm_iir;
@@ -471,6 +472,8 @@
struct drm_i915_master_private *master_priv;
u32 bsd_usr_interrupt = GT_BSD_USER_INTERRUPT;
+ atomic_inc(&dev_priv->irq_received);
+
if (IS_GEN6(dev))
bsd_usr_interrupt = GT_GEN6_BSD_USER_INTERRUPT;
@@ -1134,9 +1137,6 @@
atomic_inc(&dev_priv->irq_received);
- if (HAS_PCH_SPLIT(dev))
- return ironlake_irq_handler(dev);
-
iir = I915_READ(IIR);
if (INTEL_INFO(dev)->gen >= 4)
@@ -1593,10 +1593,15 @@
/* drm_dma.h hooks
*/
-static void ironlake_irq_preinstall(struct drm_device *dev)
+void ironlake_irq_preinstall(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+ atomic_set(&dev_priv->irq_received, 0);
+
+ INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func);
+ INIT_WORK(&dev_priv->error_work, i915_error_work_func);
+
I915_WRITE(HWSTAM, 0xeffe);
/* XXX hotplug from PCH */
@@ -1616,7 +1621,7 @@
POSTING_READ(SDEIER);
}
-static int ironlake_irq_postinstall(struct drm_device *dev)
+int ironlake_irq_postinstall(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
/* enable kind of interrupts always enabled */
@@ -1625,6 +1630,13 @@
u32 render_irqs;
u32 hotplug_mask;
+ DRM_INIT_WAITQUEUE(&dev_priv->ring[RCS].irq_queue);
+ if (HAS_BSD(dev))
+ DRM_INIT_WAITQUEUE(&dev_priv->ring[VCS].irq_queue);
+ if (HAS_BLT(dev))
+ DRM_INIT_WAITQUEUE(&dev_priv->ring[BCS].irq_queue);
+
+ dev_priv->vblank_pipe = DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B;
dev_priv->irq_mask = ~display_mask;
/* should always can generate irq */
@@ -1692,11 +1704,6 @@
INIT_WORK(&dev_priv->error_work, i915_error_work_func);
INIT_WORK(&dev_priv->rps_work, gen6_pm_rps_work);
- if (HAS_PCH_SPLIT(dev)) {
- ironlake_irq_preinstall(dev);
- return;
- }
-
if (I915_HAS_HOTPLUG(dev)) {
I915_WRITE(PORT_HOTPLUG_EN, 0);
I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT));
@@ -1722,9 +1729,6 @@
dev_priv->vblank_pipe = DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B;
- if (HAS_PCH_SPLIT(dev))
- return ironlake_irq_postinstall(dev);
-
/* Unmask the interrupts that we always want on. */
dev_priv->irq_mask = ~I915_INTERRUPT_ENABLE_FIX;
@@ -1793,9 +1797,15 @@
return 0;
}
-static void ironlake_irq_uninstall(struct drm_device *dev)
+void ironlake_irq_uninstall(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+
+ if (!dev_priv)
+ return;
+
+ dev_priv->vblank_pipe = 0;
+
I915_WRITE(HWSTAM, 0xffffffff);
I915_WRITE(DEIMR, 0xffffffff);
@@ -1817,11 +1827,6 @@
dev_priv->vblank_pipe = 0;
- if (HAS_PCH_SPLIT(dev)) {
- ironlake_irq_uninstall(dev);
- return;
- }
-
if (I915_HAS_HOTPLUG(dev)) {
I915_WRITE(PORT_HOTPLUG_EN, 0);
I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT));