commit: cc9945bf9cac03860b2f7d59882263c965c6e3af
From: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Tue, 26 Feb 2013 16:17:33 -0500
Subject: drm/radeon: don't set hpd, afmt interrupts when interrupts are
disabled
Avoids splatter if the interrupt handler is not registered due
to acceleration being disabled.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Reviewed-by: Jerome Glisse <jglisse@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/gpu/drm/radeon/radeon_irq_kms.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 90374dd..48f80cd 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -400,6 +400,9 @@ 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 +422,9 @@ 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 +444,9 @@ 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 +467,9 @@ 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));
--
1.7.10.4
--
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