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@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Cc: stable@vger.kernel.org

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 90374dd77960..48f80cd42d8f 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));