[Intel-gfx] [PATCH 02/16] drm/i915: split irq handling into per-chipset functions
Jesse Barnes
jbarnes at virtuousgeek.org
Wed Apr 27 01:38:40 CEST 2011
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 at virtuousgeek.org>
---
drivers/gpu/drm/i915/i915_dma.c | 12 ++++++++++
drivers/gpu/drm/i915/i915_drv.h | 6 +++++
drivers/gpu/drm/i915/i915_irq.c | 45 +++++++++++++++++++++-----------------
3 files changed, 43 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 3b69f38..2f653c2 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1253,6 +1253,18 @@ static int i915_load_modeset_init(struct drm_device *dev)
intel_modeset_init(dev);
+ if (HAS_PCH_SPLIT(dev)) {
+ dev->driver->irq_handler = ironlake_irq_handler;
+ dev->driver->irq_preinstall = ironlake_irq_preinstall;
+ dev->driver->irq_postinstall = ironlake_irq_postinstall;
+ dev->driver->irq_uninstall = ironlake_irq_uninstall;
+ } else {
+ dev->driver->irq_preinstall = i915_driver_irq_preinstall;
+ dev->driver->irq_postinstall = i915_driver_irq_postinstall;
+ dev->driver->irq_uninstall = i915_driver_irq_uninstall;
+ dev->driver->irq_handler = i915_driver_irq_handler;
+ }
+
ret = drm_irq_install(dev);
if (ret)
goto cleanup_vga_switcheroo;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index c10d7e9..44d24fb 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1024,6 +1024,12 @@ extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
extern void i915_driver_irq_preinstall(struct drm_device * dev);
extern int i915_driver_irq_postinstall(struct drm_device *dev);
extern void i915_driver_irq_uninstall(struct drm_device * dev);
+
+extern irqreturn_t ironlake_irq_handler(DRM_IRQ_ARGS);
+extern void ironlake_irq_preinstall(struct drm_device *dev);
+extern int ironlake_irq_postinstall(struct drm_device *dev);
+extern void ironlake_irq_uninstall(struct drm_device *dev);
+
extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 5c0466e..a58d477 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -448,8 +448,9 @@ static void pch_irq_handler(struct drm_device *dev)
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;
@@ -457,6 +458,8 @@ static irqreturn_t ironlake_irq_handler(struct drm_device *dev)
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;
@@ -1103,9 +1106,6 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
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)
@@ -1562,10 +1562,15 @@ repeat:
/* 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 */
@@ -1585,7 +1590,7 @@ static void ironlake_irq_preinstall(struct drm_device *dev)
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 */
@@ -1594,6 +1599,13 @@ static int ironlake_irq_postinstall(struct drm_device *dev)
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 */
@@ -1660,11 +1672,6 @@ void i915_driver_irq_preinstall(struct drm_device * dev)
INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func);
INIT_WORK(&dev_priv->error_work, i915_error_work_func);
- 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));
@@ -1696,9 +1703,6 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
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;
@@ -1767,9 +1771,15 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
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);
@@ -1791,11 +1801,6 @@ void i915_driver_irq_uninstall(struct drm_device * dev)
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));
--
1.7.4.1
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