1 files changed, 50 insertions, 9 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 90374dd7796..16807afab36 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -32,23 +32,29 @@
 #include "radeon.h"
 #include "atom.h"
 
+#include <linux/pm_runtime.h>
+
 #define RADEON_WAIT_IDLE_TIMEOUT 200
 
 /**
  * radeon_driver_irq_handler_kms - irq handler for KMS
  *
- * @DRM_IRQ_ARGS: args
+ * @int irq, void *arg: args
  *
  * This is the irq handler for the radeon KMS driver (all asics).
  * radeon_irq_process is a macro that points to the per-asic
  * irq handler callback.
  */
-irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS)
+irqreturn_t radeon_driver_irq_handler_kms(int irq, void *arg)
 {
 	struct drm_device *dev = (struct drm_device *) arg;
 	struct radeon_device *rdev = dev->dev_private;
+	irqreturn_t ret;
 
-	return radeon_irq_process(rdev);
+	ret = radeon_irq_process(rdev);
+	if (ret == IRQ_HANDLED)
+		pm_runtime_mark_last_busy(dev->dev);
+	return ret;
 }
 
 /*
@@ -82,6 +88,23 @@ static void radeon_hotplug_work_func(struct work_struct *work)
 }
 
 /**
+ * radeon_irq_reset_work_func - execute gpu reset
+ *
+ * @work: work struct
+ *
+ * Execute scheduled gpu reset (cayman+).
+ * This function is called when the irq handler
+ * thinks we need a gpu reset.
+ */
+static void radeon_irq_reset_work_func(struct work_struct *work)
+{
+	struct radeon_device *rdev = container_of(work, struct radeon_device,
+						  reset_work);
+
+	radeon_gpu_reset(rdev);
+}
+
+/**
  * radeon_driver_irq_preinstall_kms - drm irq preinstall callback
  *
  * @dev: drm dev pointer
@@ -99,6 +122,7 @@ void radeon_driver_irq_preinstall_kms(struct drm_device *dev)
 	/* Disable *all* interrupts */
 	for (i = 0; i < RADEON_NUM_RINGS; i++)
 		atomic_set(&rdev->irq.ring_int[i], 0);
+	rdev->irq.dpm_thermal = false;
 	for (i = 0; i < RADEON_MAX_HPD_PINS; i++)
 		rdev->irq.hpd[i] = false;
 	for (i = 0; i < RADEON_MAX_CRTCS; i++) {
@@ -146,6 +170,7 @@ void radeon_driver_irq_uninstall_kms(struct drm_device *dev)
 	/* Disable *all* interrupts */
 	for (i = 0; i < RADEON_NUM_RINGS; i++)
 		atomic_set(&rdev->irq.ring_int[i], 0);
+	rdev->irq.dpm_thermal = false;
 	for (i = 0; i < RADEON_MAX_HPD_PINS; i++)
 		rdev->irq.hpd[i] = false;
 	for (i = 0; i < RADEON_MAX_CRTCS; i++) {
@@ -241,9 +266,6 @@ int radeon_irq_kms_init(struct radeon_device *rdev)
 {
 	int r = 0;
 
-	INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);
-	INIT_WORK(&rdev->audio_work, r600_audio_update_hdmi);
-
 	spin_lock_init(&rdev->irq.lock);
 	r = drm_vblank_init(rdev->ddev, rdev->num_crtc);
 	if (r) {
@@ -259,18 +281,25 @@ int radeon_irq_kms_init(struct radeon_device *rdev)
 			dev_info(rdev->dev, "radeon: using MSI.\n");
 		}
 	}
+
+	INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);
+	INIT_WORK(&rdev->audio_work, r600_audio_update_hdmi);
+	INIT_WORK(&rdev->reset_work, radeon_irq_reset_work_func);
+
 	rdev->irq.installed = true;
-	r = drm_irq_install(rdev->ddev);
+	r = drm_irq_install(rdev->ddev, rdev->ddev->pdev->irq);
 	if (r) {
 		rdev->irq.installed = false;
+		flush_work(&rdev->hotplug_work);
 		return r;
 	}
+
 	DRM_INFO("radeon: irq initialized.\n");
 	return 0;
 }
 
 /**
- * radeon_irq_kms_fini - tear down driver interrrupt info
+ * radeon_irq_kms_fini - tear down driver interrupt info
  *
  * @rdev: radeon device pointer
  *
@@ -284,8 +313,8 @@ void radeon_irq_kms_fini(struct radeon_device *rdev)
 		rdev->irq.installed = false;
 		if (rdev->msi_enabled)
 			pci_disable_msi(rdev->pdev);
+		flush_work(&rdev->hotplug_work);
 	}
-	flush_work(&rdev->hotplug_work);
 }
 
 /**
@@ -400,6 +429,9 @@ void radeon_irq_kms_enable_afmt(struct radeon_device *rdev, int block)
 {
 	unsigned long irqflags;
 
+	if (!rdev->ddev->irq_enabled)
+		return;
+
 	spin_lock_irqsave(&rdev->irq.lock, irqflags);
 	rdev->irq.afmt[block] = true;
 	radeon_irq_set(rdev);
@@ -419,6 +451,9 @@ void radeon_irq_kms_disable_afmt(struct radeon_device *rdev, int block)
 {
 	unsigned long irqflags;
 
+	if (!rdev->ddev->irq_enabled)
+		return;
+
 	spin_lock_irqsave(&rdev->irq.lock, irqflags);
 	rdev->irq.afmt[block] = false;
 	radeon_irq_set(rdev);
@@ -438,6 +473,9 @@ void radeon_irq_kms_enable_hpd(struct radeon_device *rdev, unsigned hpd_mask)
 	unsigned long irqflags;
 	int i;
 
+	if (!rdev->ddev->irq_enabled)
+		return;
+
 	spin_lock_irqsave(&rdev->irq.lock, irqflags);
 	for (i = 0; i < RADEON_MAX_HPD_PINS; ++i)
 		rdev->irq.hpd[i] |= !!(hpd_mask & (1 << i));
@@ -458,6 +496,9 @@ void radeon_irq_kms_disable_hpd(struct radeon_device *rdev, unsigned hpd_mask)
 	unsigned long irqflags;
 	int i;
 
+	if (!rdev->ddev->irq_enabled)
+		return;
+
 	spin_lock_irqsave(&rdev->irq.lock, irqflags);
 	for (i = 0; i < RADEON_MAX_HPD_PINS; ++i)
 		rdev->irq.hpd[i] &= !(hpd_mask & (1 << i));